US Pat. No. 9,353,718

DRIVEABILITY OF A VEHICLE EQUIPPED WITH START/STOP LOGIC

Cummins Inc., Columbus, ...

1. A method comprising:
operating a vehicle system including an internal combustion engine and a controller configured to conditionally stop and re-start
the engine;

tracking with the controller a distance that the vehicle has traveled since a most recent vehicle stopped state;
determining with the controller a time limit as a function of the distance that the vehicle has traveled since the most recent
vehicle stopped state;

tracking with the controller a time that an engine stop request condition has been true;
evaluating with the controller said time relative to said time limit; and
wherein the evaluating is effective to conditionally enable or disable engine stop events based upon the relationship between
said time and said time limit.

US Pat. No. 9,429,092

FAULT DETECTION AND RESPONSE TECHNIQUES

Cummins Inc., Columbus, ...

1. A system comprising:
an engine system including a flywheel and a damper;
a first sensor and a second sensor operatively coupled to the engine system, the first sensor and the second sensor being
structured to generate sensor information regarding a torsional vibration difference between the flywheel and the damper;

a control system coupled to the first sensor, the second sensor, and the engine system, the control system including a memory
and a plurality of reference signatures for the flywheel and the damper stored in the memory that include reference information
for the torsional vibration difference between the flywheel and the damper without a mechanical fault, the control system
being configured to:

generate an operational signature of the flywheel and the damper based on the sensor information generated during operation
of the engine system;

update a reference signature of the flywheel and the damper, wherein the reference signature is selected from the plurality
of reference signatures;

compare the operational signature with the reference signature;
estimate whether a fault exists within the engine system based on the comparison of the operational signature with the reference
signature;

determine an engine operating mode adjustment based on the operational signature if a fault is estimated to exist;
output the engine operating mode adjustment to an output device; and
operate the engine system in response to the engine operation mode adjustment.

US Pat. No. 9,250,156

TECHNIQUES FOR EVALUATING PERFORMANCE OF INTERNAL COMBUSTION ENGINE COMPONENTS

Cummins Inc., Columbus, ...

1. A method, comprising:
determining a first voltage reduction of a battery system during operation of a heating component associated with an internal
combustion engine;

determining a second voltage reduction of the battery system during operation of an engine accessory, wherein the engine accessory
includes a starter and operation of the engine accessory includes starting the internal combustion engine with the starter
after operation of the heating component to determine the first voltage reduction, the second voltage reduction being determined
during the starting;

using the second voltage reduction to determine an expected voltage reduction during operation of the heating component; and
determining a performance of the heating component from the first voltage reduction and the expected voltage reduction.

US Pat. No. 9,890,717

SYSTEM AND METHOD FOR ESTIMATING TURBOCHARGER OPERATING SPEED

CUMMINS INC., Columbus, ...

1. A system for estimating an operating speed of a turbocharger, the system comprising:
the turbocharger including a compressor having an inlet and an outlet;
a first pressure sensor configured to produce a first pressure value indicative of gas pressure at or near the inlet of the
compressor;

a second pressure sensor configured to produce a second pressure value indicative of gas pressure at or near the outlet of
the compressor;

a temperature sensor configured to produce a temperature value indicative of gas temperature at or near the inlet of the compressor;
a flow sensor configured to produce a flow value indicative of a flow rate of gas into the inlet of the compressor; and
a control circuit configured to estimate the operating speed of the turbocharger in response to the first and second pressure
values, the temperature value and the flow value for use in the system.

US Pat. No. 9,328,674

CONTROLS FOR PERFORMANCE OPTIMIZATION OF INTERNAL COMBUSTION ENGINE SYSTEMS

Cummins Inc., Columbus, ...

1. A method comprising:
operating a vehicle system including an internal combustion engine, an selective catalytic reduction aftertreatment system,
and a control system configured to control a plurality of constituents provided to the engine for combustion and configured
to control operation of the selective catalytic reduction aftertreatment system;

operating the control system to control the plurality of constituents at a non-optimized operating point in a parameter space
describing fuel consumption and NOx emissions of the vehicle system based on the plurality of controlled constituents;

perturbating at least one of the controlled constituents effective to change the operating point in the parameter space;
determining fuel consumption information and NOx emissions information at the changed operating point; and
repeating the acts of perturbating and determining a plurality of times to operate at a plurality of changed operating points
based at least in part upon a predetermined perturbation criterion and the determined information at one or more changed operating
points;

wherein the method is effective to iteratively approach a multivariate optimization target including a fuel consumption component
and reductant consumption component while meeting a predetermined NOx emissions criterion, and

wherein the iterative approaching of the multivariate optimization target occurs independently from any a priori knowledge
of initial values of the parameter space.

US Pat. No. 9,212,587

EXHAUST THROTTLE CONTROL FOR AFTERTREATMENT SYSTEM THERMAL MANAGEMENT

Cummins Inc., Columbus, ...

18. A system, comprising:
an internal combustion engine operable to produce an exhaust gas flow; an exhaust system connected to the internal combustion
engine to receive the exhaust gas flow, the exhaust system including an aftertreatment system with a selective catalytic reduction
(SCR) catalyst and an exhaust throttle upstream of the SCR catalyst;

a plurality of sensors operable to output signals indicative of operating parameters of the internal combustion engine, the
exhaust gas flow, and the SCR catalyst, the operating parameters including at least a temperature condition of the SCR catalyst;

a controller operably connected to receive the output signals from the plurality of sensors, the controller configured to:
interpret a contamination condition of the SCR catalyst in response to the operating parameters and initiate a thermal management
event in response to interpreting the contamination condition;

in response to initiation of the thermal management event, close the exhaust throttle in response to the temperature condition
of the SCR catalyst being less than a first predetermined threshold, open the exhaust throttle in response to the temperature
condition of the SCR catalyst being greater than a second predetermined threshold, and operate the internal combustion engine
to produce an exhaust gas flow in a contaminant removal temperature range;

to interpret at least one thermal management event termination condition during tile thermal management event and output a
thermal management event termination command in response to the thermal management event termination condition;

indicate a type of a previous thermal management event implemented to remove a type of contaminant on the SCR catalyst; and
count time, from the previous thermal management event, towards a duration of the thermal management event to lessen the duration
of the thermal management event based on the indicated type of previous thermal management event having occurred in the contaminant
removal temperature range for the thermal management event.

US Pat. No. 9,181,905

SYSTEM FOR CONTROLLING AN AIR HANDLING SYSTEM INCLUDING AN ELECTRIC PUMP-ASSISTED EXHAUST GAS RECIRCULATION

Cummins Inc., Columbus, ...

1. An air handling system for an internal combustion engine, comprising:
an exhaust gas recirculation (EGR) passageway fluidly coupled between an exhaust manifold of the engine via an exhaust gas
passageway and an intake manifold of the engine via an intake air passageway,

an EGR valve disposed in-line with the EGR passageway, the EGR valve controllable between fully closed and fully open positions
to control a flow rate of exhaust gas through the EGR passageway from the exhaust manifold to the intake manifold,

a dedicated electric gas pump for the exhaust gas, that increases, when activated, the flow rate of exhaust gas through the
EGR passageway supplied to the intake air passageway, and

a control circuit including a memory having instructions stored therein that are executable by the control circuit to:
determine a pump enable value in response to at least one of a target engine speed and a total fueling target and to determine
a maximum achievable flow rate of recirculated exhaust gas through the EGR passageway with the EGR valve in the fully open
position and with the electric gas pump present and deactivated,

activate the electric gas pump to increase the flow rate of exhaust gas through the EGR passageway in response to the pump
enable value exceeding a threshold pump enable value and a target flow rate of recirculated exhaust gas through the EGR passageway
being less than the maximum achievable flow rate; and

deactivate the electric gas pump in response to the pump enable value being less than the threshold pump enable value.

US Pat. No. 9,316,195

SYSTEMS AND METHODS FOR OPTIMIZATION AND CONTROL OF INTERNAL COMBUSTION ENGINE STARTING

Cummins Inc., Columbus, ...

1. A method, comprising:
selecting a target engine speed profile for starting an internal combustion engine of a vehicle based on operator inputs from
an operator of the vehicle and operating parameters of the vehicle, wherein the operating parameters include a charge condition
of at least one of a low voltage energy storage device connected to a first starter motor and a high voltage energy storage
device connected to a second starter motor, and wherein selecting the target engine speed profile includes selecting one of
the first starter motor and the second starter motor in response to the charge condition;

driving the internal combustion engine for a starting duration with the selected one of the first starter motor and the second
starter motor in response to selecting the target engine speed profile;

determining an instantaneous engine speed during a starting duration;
regulating the speed of the internal combustion engine during the starting duration in response to the instantaneous engine
speed to substantially conform the speed of the internal combustion engine with the target speed profile; and

starting the internal combustion engine when the speed of the internal combustion engine reaches a target speed of the target
speed profile.

US Pat. No. 9,228,536

LOAD SHEDDING TECHNIQUES FOR DUAL FUEL ENGINES

Cummins Inc., Columbus, ...

1. A method, comprising:
operating an internal combustion engine system including an intake system connected to an engine with at least one cylinder
and at least two fuel sources operably connected to the internal combustion engine system to provide a liquid fuel at a first
rate to the at least one cylinder and a flow of a gaseous fuel to the engine to produce a torque output, wherein the intake
system is coupled to the at least one cylinder to provide a charge flow from the intake system to a combustion chamber of
the at least one cylinder, the internal combustion engine system further including an exhaust system;

determining, with a controller connected to the internal combustion engine and the at least two sources, a load shedding event
associated with the internal combustion engine;

in response to determining the load shedding event:
reducing the first rate of the liquid fuel to the at least one cylinder;
reducing the flow of the gaseous fuel to the engine, wherein an uncombusted amount of gaseous fuel remains in the intake system
after reducing the flow; and

preventing at least a portion of the uncombusted amount of the gaseous fuel from entering the exhaust system to minimize unintended
energy release in the exhaust system.

US Pat. No. 9,062,642

FUEL INJECTOR WITH VARIABLE SPRAY

Cummins Inc., Columbus, ...

9. A fuel injector for injecting high pressure fuel into a combustion chamber of an internal combustion engine, comprising:
an injector body containing an injector cavity and including a valve seat;
a nozzle valve element positioned in said injector cavity, said nozzle valve element including a valve surface positioned
adjacent said valve seat, a fuel delivery passage, a plurality of spray holes fluidically connected to said fuel delivery
passage, and an annular groove formed adjacent said plurality of spray holes, said nozzle valve element operable to move between
a closed position with said valve surface positioned in sealing abutment with said valve seat to block fuel flow from said
plurality of spray holes and an open position permitting flow from said spray holes, said nozzle valve element operable to
move outwardly away from said injector body when moving from said closed position toward said open position, said annular
groove being configured to receive fuel from said plurality of spray holes when said nozzle valve element in said closed position,
and said open position including a first lift position and a second lift position having a greater lift than said first lift
position, at least one of said plurality of spray holes positioned adjacent said injector body when said nozzle valve element
is in said first lift position to cause fuel flowing from said at least one spray hole to impinge on said injector body and
deflect toward said combustion chamber, said at least one spray hole positioned adjacent said injector body when said nozzle
valve element is in said second lift position to cause fuel flowing from said at least one spray hole to avoid impingement
on said injector body; and

a nozzle valve actuator assembly adapted to move said nozzle valve element toward said open position.

US Pat. No. 9,316,565

EXHAUST MANIFOLD PRESSURE BASED MISFIRE DETECTION FOR INTERNAL COMBUSTION ENGINES

Cummins Inc., Columbus, ...

1. A method for detecting an engine cylinder misfire in an internal combustion engine having at least one cylinder, comprising:
comparing a first load variable (FLV) with a first estimated load variable (FELV) for a first cylinder of the engine;
determining a first process to utilize, wherein the first process is one of an estimated exhaust manifold pressure process
(EEMPP) or a centroid projection process (CPP), and wherein the CPP is based, at least in part, on an estimated exhaust manifold
pressure;

calculating an operating value (OV) in relation to one or more data inputs of engine characteristics and a comparative value
(CV) associated with a threshold value in response to the determination of the first process to utilize, wherein the OV and
the CV are calculated using either the EEMPP or the CPP based on the comparison of the FLV to the FELV;

comparing the OV and the CV, and
detecting a misfire condition for the first cylinder based on the comparison of the OV to the CV.

US Pat. No. 9,249,698

COMPRESSION RELIEF BRAKE RESET MECHANISM

Cummins Inc., Columbus, ...

1. A compression relief brake apparatus, comprising:
a rocker lever pivotally mounted on a support shaft, said support shaft having a cam surface;
one end of said rocker lever operably connected to at least one of an exhaust valve or an exhaust valve crosshead of an internal
combustion engine cylinder and an opposite end of said rocker lever operably connected to a cam member that pivots said rocker
lever about said support shaft;

a reset valve assembly housed in a passage of said rocker lever that is in flow communication with a slave piston coupled
to said exhaust valve, said passage further being in flow communication with a fluid supply, said reset valve assembly including
a reset pin positionable to open and close said passage with said reset valve assembly; and

wherein in a compression braking mode of operation said cam surface of said support shaft contacts a first end of a reset
pin and rotation of said rocker lever around said support shaft causes movement of said first end of said reset pin along
said cam surface to close said passage with said reset valve assembly and isolate said slave piston from said fluid supply.

US Pat. No. 9,447,764

INTERNAL COMBUSTION ENGINE START-STOP CONTROLS

Cummins Inc., Columbus, ...

1. A system, comprising:
an internal combustion engine;
a turbocharger operatively coupled with the internal combustion engine; and
a controller operatively coupled with the internal combustion engine,
wherein the controller is structured to evaluate information associated with a temperature of the turbocharger and conditionally
re-start the internal combustion engine after an engine shutdown based at least in part upon said information, and

wherein the controller evaluates whether to conditionally re-start the internal combustion engine based at least in part upon
an indication that a post-engine-shutdown temperature of the turbocharger would exceed a predetermined criterion absent re-starting
the internal combustion engine.

US Pat. No. 9,260,002

ENGINE START SYSTEMS AND TECHNIQUE FOR HYBRID ELECTRIC VEHICLES

Cummins Inc., Columbus, ...

1. A method, comprising:
operating a hybrid electric vehicle in an electric drive mode wherein a driver torque demand is satisfied by a torque output
from an electromechanical device to a drive shaft and the electromechanical device is engaged to a transmission through the
drive shaft;

increasing the torque output of the electromechanical device by an engine starting torque prior to transitioning from the
electric drive mode to the hybrid drive mode while the electromechanical device remains fully engaged to the transmission
to meet driver torque demand with the electromechanical device during starting of the internal combustion engine;

transitioning from the electric drive mode to a hybrid drive mode by slippingly engaging a friction clutch connecting the
electromechanical device to the internal combustion engine to rotate the internal combustion engine while the electromechanical
device remains fully engaged with the transmission to satisfy the driver torque demand;

disengaging the friction clutch when a speed of the internal combustion engine reaches a first threshold;
fueling the internal combustion engine after disengaging the friction clutch to increase the speed of the internal combustion
engine to a second threshold; and

when the speed of the internal combustion engine reaches the second threshold, operating the hybrid electric vehicle in a
hybrid drive mode by engaging the friction clutch to couple a torque output of the internal combustion engine and the torque
output of the electromechanical device to the drive shaft.

US Pat. No. 9,132,725

VEHICLE AND HYBRID DRIVE SYSTEM

Cummins Inc., Columbus, ...

1. A vehicle, comprising:
a drive train including a transmission and a drive axle; and
a hybrid vehicle drive system, including:
a combustion engine;
a clutch;
an electrical machine coupled to the combustion engine via the clutch;
the electrical machine further being directly coupled to the transmission without an intervening clutch, wherein the transmission
is operative to transmit power from the combustion engine and the electrical machine to the drive axle; and

an accessory drive system coupled to the electrical machine and configured to drive at least one accessory,
wherein the hybrid vehicle drive system is configured to supply mechanical power to the accessory drive system from the combustion
engine by engaging the clutch; and wherein the hybrid vehicle drive system is configured to supply mechanical power to the
accessory drive system from the electrical machine by disengaging the clutch.

US Pat. No. 9,103,294

FUEL DRIFT ESTIMATION AND COMPENSATION FOR OPERATION OF AN INTERNAL COMBUSTION ENGINE

Cummins Inc., Columbus, ...

1. A method, comprising:
determining an oxygen amount in an exhaust gas and a fresh air flow to an internal combustion engine while fueling the internal
combustion engine with a first fueling command that is based on a desired engine speed and torque;

while fueling with the first fueling command, determining an actual fueling to the internal combustion engine as a function
of the oxygen amount and the fresh air flow;

comparing the actual fueling to an expected fueling, wherein the expected fueling is predetermined and based on the first
fueling command;

determining the oxygen amount in the exhaust gas is less than a predetermined threshold; and
in response to the oxygen amount being less than the predetermined threshold, determining a fuel drift from the comparison
of the actual fueling to the expected fueling.

US Pat. No. 9,370,845

METHOD OF REPAIRING A CRACKED HEAD USING AN INJECTOR BORE INSERT

CUMMINS INC., Columbus, ...

1. A method for repairing a multi-valve cylinder head having a plurality of valve openings, comprising, for one opening of
the plurality of valve openings:
placing a first bore pilot bushing above a top of the cylinder head and central to the one opening;
drilling a first bore pilot hole at a first bore pilot diameter through the pilot bushing;
drilling a second bore pilot hole from a bottom side of the cylinder head to a predetermined depth;
cutting a conical surface around an outer diameter of the second bore pilot hole;
completing a tapped hole;
sealing one or more predetermined sealing locations;
installing an injector bore insert into the first and second bore pilot holes;
re-boring interior chamfers and cylindrical surfaces of a valve seat bore of the one opening; and,
facing off flush the insert with a combustion face of the cylinder head.

US Pat. No. 9,140,203

APPARENT PLUMBING VOLUME OF AIR INTAKE AND FRESH AIRFLOW VALUE DETERMINATION

Cummins Inc., Columbus, ...

1. A system, comprising:
an internal combustion engine having an air intake assembly;
a mass airflow (MAF) sensor operably coupled to the air intake assembly;
a controller comprising:
an operating conditions module structured to interpret a MAF value, a current operating condition, and a charge flow value;
a volume estimation module structured to determine an apparent plumbing volume of the air intake assembly in response to the
MAF value, the current operating condition and the charge flow value; and

a volume reporting module structured to provide the apparent plumbing volume, wherein the controller is structured to determine
a fresh airflow value to the engine in response to the apparent plumbing volume and control engine operations in response
to the fresh airflow value.

US Pat. No. 9,162,183

SYSTEM AND METHOD TO MANAGE SCR CATALYST NO2/NOX RATIO

CUMMINS INC., Columbus, ...

1. A method, comprising:
determining an NO2 to NOx ratio reference target to a first selective catalytic reduction (SCR) catalyst of an aftertreatment system, the aftertreatment
system including the first SCR catalyst, a second SCR catalyst upstream of the first SCR catalyst, and a diesel oxidation
catalyst (DOC) upstream of the first SCR catalyst and downstream of the second SCR catalyst;

determining a present NO2 to NOx ratio to the first SCR catalyst, wherein determining the present NO2 to NOx ratio to the first SCR catalyst includes receiving an input that indicates a deactivation condition of the DOC correlated
to a reduced NO2 production capability of the DOC, wherein the input indicating the deactivation condition corresponds to cumulative operational
data for the aftertreatment system indicating one of a poisoning condition and an aging condition of the DOC;

determining an NO2 to NOx ratio deviation in response to the NO2 to NOx ratio reference target and the present NO2 to NOx ratio, wherein determining the NO2 to NOx ratio deviation includes determining a threshold deviation value indicated by a calibration table based on the deactivation
condition;

determining a reductant doser command for injection of a reductant amount upstream of the second SCR catalyst in response
to the threshold deviation value; and

providing the reductant doser command in response to the threshold deviation value.

US Pat. No. 9,464,631

FUEL PUMP FOR AN INTERNAL COMBUSTION ENGINE

CUMMINS INC., Columbus, ...

1. A fuel pump for an internal combustion engine, comprising:
a pump housing; and
a pumping unit mounted in the pump housing and including
a pumping barrel having a longitudinal axis,
a barrel bore extending along the longitudinal axis,
a pumping plunger positioned within the barrel bore to form a pumping chamber, the pumping plunger mounted for reciprocal
movement through an intake stroke to receive fuel in the pumping chamber and a pressure stroke to pump fuel under high pressure
from the pumping chamber,

an inlet check valve cavity in fluid communication with the pumping chamber, and
an inlet check valve positioned in the inlet check valve cavity, the inlet check valve including an inlet check valve plunger
mounted for movement in the inlet check valve cavity away from the pumping chamber during the pumping plunger intake stroke,
the inlet check valve cavity being positioned to receive an inlet flow of fuel for delivery to the pumping chamber during
the pumping plunger intake stroke and positioned to receive high-pressure fuel from the pumping chamber during the pumping
plunger pressure stroke;

wherein the inlet check valve plunger includes a passage extending into the inlet check valve plunger at an angle relative
to the longitudinal axis to receive the high pressure fuel from the pumping chamber during the pumping plunger pressure stroke.

US Pat. No. 9,222,375

VARIABLE VALVE ACTUATION APPARATUS, SYSTEM, AND METHOD

Cummins Inc., Columbus, ...

1. An apparatus comprising:
a cam shaft having a reference elongate member driven by an engine crank shaft, the cam shaft including a shaft, a first tube,
and a second tube, wherein the shaft and first tube are within the second tube and the shaft is within the first tube, wherein
the shaft, the first tube and the second tube rotate independently of one another, the camshaft further having a first cam
lobe coupled to the shaft with a first pin assembly that passes through the shaft and through cutouts in the first and second
tubes, and a second cam lobe coupled to the first tube with a second pin assembly passing through apertures in the second
tube wherein the first lobe and the second lobe are structured to be independently clocked relative to the reference elongate
member when the cam shaft is in operation.

US Pat. No. 9,140,209

RANKINE CYCLE WASTE HEAT RECOVERY SYSTEM

CUMMINS INC., Columbus, ...

1. An internal combustion engine, comprising:
an engine block;
a cylinder head attached to the engine block; and
a waste heat recovery system including:
a waste heat recovery circuit containing a working fluid, the waste heat recovery circuit including a plurality of waste heat
recovery passages formed in at least one of the cylinder head and the engine block,

a pump positioned along the waste heat recovery circuit upstream from the plurality of waste heat recovery passages to deliver
the working fluid through the waste heat recovery circuit,

an exhaust gas recirculation (EGR) boiler positioned along the waste heat recovery circuit downstream from the pump so as
to selectively receive at least a portion of the working fluid,

an engine heat exchanger positioned along the waste heat recovery circuit downstream from the plurality of waste heat recovery
passages to receive at least a portion of the working fluid from the upstream EGR boiler and receive at least a portion of
the working fluid from the upstream pump,

an exhaust heat exchanger positioned along the waste heat recovery circuit downstream from the engine heat exchanger so as
to receive the working fluid from the upstream engine heat exchanger, the exhaust heat exchanger further selectively receiving
an exhaust gas flowing through an exhaust system to an atmospheric vent,

an EGR superheater positioned along the waste heat recovery circuit downstream from the exhaust heat exchanger to receive
the working fluid from the upstream exhaust heat exchanger, wherein the EGR boiler and the EGR superheater are connected to
at least a portion of an EGR circuit to receive EGR gas, the EGR gas flowing from the EGR superheater into the EGR boiler
to transfer heat to the working fluid, and

an energy conversion portion positioned along the waste heat recovery circuit downstream from the plurality of waste heat
recovery passages to receive the working fluid.

US Pat. No. 9,115,664

ENGINE CONTROL SYSTEMS AND METHODS

Cummins Inc., Columbus, ...

1. A system, comprising:
an air actuator configured to control air delivered to an engine;
a fuel actuator configured to control fuel delivered to an engine; and
a controller configured to:
actuate the air actuator in response to a first torque signal; and
actuate the fuel actuator in response to a second torque signal.

US Pat. No. 9,103,248

METHOD AND SYSTEM FOR OPTIMIZING FUEL AND REDUCTANT CONSUMPTION

CUMMINS INC., Columbus, ...

8. A method for optimizing consumption of fuel and reductant for an internal combustion engine system including a combustion
engine producing a flow of engine exhaust emissions, a doser configured to introduce a reducing agent into the flow of engine
exhaust emissions, and a selective catalytic reduction (SCR) catalyst adapted to convert the flow of engine exhaust emissions
to converted exhaust emissions through a reduction process utilizing the reducing agent, the method comprising:
determining, from among plural predetermined reductant-to-fuel cost ratio values, a reductant-to-fuel cost ratio value; and
determining, using a, mode determining module, an operating mode of the combustion engine and the after-treatment device based
on both the determined reductant-to-fuel cost ratio value and a geographic location of a vehicle, wherein

after the step of determining the operating mode, the exhaust emissions downstream of the selective catalytic reduction (SCR)
catalyst is below a target emissions level.

US Pat. No. 9,371,789

SYSTEM AND METHOD FOR A SELF-ADJUSTING DUAL FUEL GAS CONTROL

CUMMINS INC., Columbus, ...

1. A method for dynamic adjustment of operation of a dual fuel internal combustion engine, the method comprising:
determining, using a control module, at least one operating parameter of the engine, wherein the at least one operating parameter
of the engine comprises an engine load;

determining an advantageous gaseous fuel substitution rate in response to the engine load and an engine speed;
determining an actual gaseous fuel substitution rate;
determining an error term in response to the advantageous gaseous fuel substitution rate and the actual gaseous fuel substitution
rate; and

adjusting, in response to the error term, a ratio of gaseous fuel to liquid fuel consumed by the engine by adjusting a gas
control valve.

US Pat. No. 9,228,510

ENGINE CONTROL SYSTEMS AND METHODS

Cummins Inc., Columbus, ...

1. A method, comprising:
operating a controller to control an engine torque, the controller structured to control the engine torque utilizing air in
a first operating condition and further structured to control the engine torque utilizing fuel in a second operating condition.

US Pat. No. 9,482,169

OPTIMIZATION-BASED CONTROLS FOR DIESEL ENGINE AIR-HANDLING SYSTEMS

Cummins Inc., Columbus, ...

1. A method comprising:
operating a system including an internal combustion engine and an air handling system, the air handling system including an
exhaust system and an intake system, the intake system structured to provide charge air to the internal combustion engine;

determining a first set of parameters based on a set of operational states of the system including a charge flow;
computing a second set of parameters based on a linear time varying model of the system as a function of the first set of
parameters;

computing one or more control commands based upon a minimization or maximization of a cost function over a prediction horizon,
and the second set of parameters; and

controlling one or more operations of the air handling system based at least in part upon the one or more control commands;
wherein the acts of determining the first and second set of parameters and computing the one or more control commands are
repeated over a plurality of time periods over which the first set of parameters and the second set of parameters are time
variant.

US Pat. No. 9,249,746

SYSTEM AND METHOD FOR ENGINE CONTROL USING PRE-CHAMBER IGNITION

Cummins Inc., Columbus, ...

1. A method of controlling an engine, the method comprising:
determining the speed and load of the engine;
introducing charge gases into a combustion cylinder of the engine, the charge gases including an air portion and a recirculated
exhaust gas portion;

introducing a first prescribed amount of fuel into the charge gases to form a main charge;
introducing a purge gas into a pre-chamber via a port, the pre-chamber defined by a wall with the port formed therethrough,
the pre-chamber further in fluid communication with the cylinder, wherein the purge gas at least partially scavenges residual
gases generated in a preceding combustion cycle from the pre-chamber prior to a subsequent combustion cycle;

introducing a second prescribed amount of fuel into the pre-chamber to form a pre-chamber charge;
igniting the pre-chamber charge using an igniter at least partially disposed in the pre-chamber, wherein ignition of the pre-chamber
charge subsequently ignites and combusts the main charge; and

adjusting an amount of the recirculated exhaust gas portion introduced into the cylinder for the subsequent combustion cycle
based on the speed and load of the engine,

wherein a timing of introducing the purge gas is based on the amount of recirculated exhaust gas portion introduced into the
cylinder.

US Pat. No. 9,090,250

SYSTEM, METHOD, AND APPARATUS FOR BATTERY PACK THERMAL MANAGEMENT

Cummins Inc., Columbus, ...

1. A method, comprising:
operating a hybrid power train comprising an internal combustion engine, an electric motor, a hybrid power system battery
pack electrically coupled to the electric motor, and a driveline structured to motively couple the engine and the electric
motor to a vehicle;

generating, thermal energy in the hybrid power system batter pack;
determining a heat transfer value in response to a temperature of the hybrid power system battery pack and a target temperature
description;

providing a heat transfer command in response to the heat transfer value indicating the temperature of the hybrid power system
battery pack is too high;

removing an amount of the thermal energy from the hybrid power system battery pack in response to the heat transfer command;
securing, at least a portion of the removed thermal energy, and
determining a propulsion state of the vehicle, wherein securing at least the portion of the removed thermal energy includes
providing the removed thermal energy to the driveline of the vehicle in response to the propulsion state indicating the electric
motor is providing motive power to the driveline of the vehicle.

US Pat. No. 9,291,138

FUEL INJECTOR WITH INJECTION CONTROL VALVE ASSEMBLY

CUMMINS INC., Columbus, ...

1. A fuel injector for injecting fuel at high pressure into a combustion chamber of an internal combustion engine, comprising:
an injector body including a longitudinal axis, an outer housing, an injector cavity, a fuel delivery circuit, and an injector
orifice communicating with one end of the injector cavity to discharge fuel from the fuel delivery circuit into the combustion
chamber;

a nozzle valve element positioned in one end of the injector cavity adjacent the injector orifice, the nozzle valve element
movable between an open position in which fuel may flow through the injector orifice into the combustion chamber and a closed
position in which fuel flow through the injector orifice is blocked;

a control volume positioned to receive a pressurized supply of fuel;
a drain circuit positioned to drain fuel from the control volume toward a low pressure drain, the drain circuit including
an axially inward flow passage extending the longitudinal axis toward the injector orifice and positioned to receive drain
fuel flow from the control volume to direct drain fuel flow in a direction along the longitudinal axis toward the injector
orifice, and the drain circuit including a transverse flow passage including a first end and a second end; and

an injection control valve assembly positioned along the drain circuit to control fuel flow from the control volume, the injection
control valve assembly including a valve housing having a valve cavity including an actuator, a fuel injector control valve
positioned within the valve cavity, a control valve member positioned in the valve cavity to move between an open position
permitting flow through the drain circuit and a closed position blocking flow through the drain circuit, and an actuator positioned
in the valve cavity to cause movement of the control valve member between the open and closed positions, wherein the first
end of the transverse flow passage is in fluid communication with the valve cavity and the second end of the transverse flow
passage is in fluid communication with the axially inward flow passage and the first end, and the actuator includes a stator
and an armature operably connected to the control valve member, the first end of the transverse flow passage opening into
the valve cavity radially adjacent a portion of the valve cavity that is under a distal surface of the armature.

US Pat. No. 9,267,460

SYSTEM AND METHOD FOR ESTIMATING HIGH-PRESSURE FUEL LEAKAGE IN A COMMON RAIL FUEL SYSTEM

Cummins Inc., Columbus, ...

1. A system for determining a rate of fuel leakage in a fuel system of an internal combustion engine having a plurality of
combustion chambers, the system comprising:
a fuel accumulator positioned to receive a fuel flow;
a sensor adapted to detect fuel pressure in the fuel accumulator and to transmit a pressure signal indicative of the fuel
pressure in the fuel accumulator;

a plurality of fuel injectors, each fuel injector operable to deliver a quantity of fuel from the fuel accumulator to one
of the plurality of combustion chambers; and

a control system adapted to receive the pressure signal, to transmit a control signal to stop the fuel flow to the fuel accumulator,
to determine a fuel leakage rate in the fuel system, to determine a decrease in the fuel pressure by a predetermined amount
based on the pressure signal, and to transmit a control signal to restart the fuel flow to the fuel accumulator based on the
predetermined amount of decrease in the fuel pressure,

wherein the fuel leakage rate is determined using a mathematical equation comprising P=c0+c1?{square root over (P)}, wherein c0 and c1 are coefficients that are estimated using a recursive least-square procedure modified with an additive process noise covariance.

US Pat. No. 9,074,549

AFTERTREATMENT THERMAL MANAGEMENT STRATEGIES FOR INTERNAL COMBUSTION ENGINES HAVING MULTIPLE CYLINDER BANKS

Cummins Inc., Columbus, ...

1. A method, comprising:
operating an internal combustion engine system including an engine with first and second cylinder banks each including at
least one cylinder for receiving fuel from a fuel system, an intake system for delivering air to each of the cylinders, and
an exhaust system including a first aftertreatment system for receiving exhaust gases from the first cylinder bank and a second
aftertreatment system for receiving exhaust gases from the second cylinder bank, and further comprising a first throttle connected
to the first cylinder bank and a second throttle connected to the second cylinder bank;

interpreting a thermal management event for the first aftertreatment system;
in response to the thermal management event, determining a first fuelling amount to the first cylinder bank that produces
an exhaust gas from the first cylinder bank in response to a target temperature condition for the first aftertreatment system;

determining a second fuelling amount to the second cylinder bank that satisfies a differential between a torque request to
the engine and a torque output by the first cylinder bank in response to the first fuelling amount; and

operating the engine with the first cylinder bank fuelled with the first fuelling amount and the second cylinder bank fuelled
with the second fuelling amount.

US Pat. No. 9,228,468

TARGETED REGENERATION OF A CATALYST IN AN AFTERTREATMENT SYSTEM

Cummins Inc., Columbus, ...

21. A system, comprising:
an internal combustion engine operable to produce an exhaust gas flow;
an exhaust system connected to the internal combustion engine to receive the exhaust gas flow, the exhaust system including
an aftertreatment system with at least one catalyst;

a plurality of sensors operable to output signals indicative of operating parameters of the internal combustion engine, the
exhaust gas flow, and the at least one catalyst;

a controller operably connected to receive the output signals from the plurality of sensors, the controller comprising:
a catalyst regeneration initiation module configured to interpret a deactivation condition of the at least one catalyst in
response to the operating parameters and output a catalyst regeneration command to initiate a catalyst regeneration event;

a catalyst regeneration operations module configured to operate at least one of the internal combustion engine and the exhaust
system to produce the regeneration event in response to the catalyst regeneration command, wherein the regeneration event
includes a temperature of the exhaust gas flow into the at least one catalyst in a regeneration temperature range for a period
of time; and

a catalyst regeneration termination module configured to interpret at least one regeneration termination condition during
the regeneration event and output a catalyst regeneration termination command in response to the regeneration termination
condition, wherein the at least one regeneration event termination condition includes a measurable increase in a deNOx efficiency
of the at least one catalyst during the regeneration event that exceeds a performance recovery threshold.

US Pat. No. 9,169,784

PROCESSING SYSTEM AND METHOD FOR CALCULATING PRESSURE DECREASES DUE TO INJECTION EVENTS IN A HIGH-PRESSURE FUEL SYSTEM

Cummins Inc., Columbus, ...

1. A fuel system for an internal combustion engine, the system comprising:
a fuel accumulator positioned to receive a fuel flow;
a sensor adapted to detect a fuel pressure in the fuel accumulator and to transmit a fuel pressure signal indicative of the
fuel pressure in the fuel accumulator;

a plurality of fuel injectors, each fuel injector adapted to receive an injection signal and operable to deliver a quantity
of fuel from the fuel accumulator to one of a plurality of combustion chambers in response to the injection signal, the delivery
of fuel by each fuel injector forming an injection event;

the fuel pressure signal including a first injection event signal portion, a second injection event signal portion, and a
first intermediate pressure signal portion extending from an end of the first injection event signal portion to a beginning
of the second injection event signal portion, the first intermediate pressure signal portion having a frequency that includes
a wavelength; and

a control system adapted to generate a control signal to command a stop of the fuel flow to the accumulator, to receive the
fuel pressure signal, and to divide the first intermediate pressure signal portion into a plurality of contiguous single cycle
windows, each single cycle window being equal in width and a total width of the plurality of single cycle windows being equal
to an integer number of wavelengths, the control system adapted to calculate a mean pressure for each one of the plurality
of single cycle windows, and to calculate a first mean pressure for the first intermediate pressure signal portion based on
at least two single cycle window mean pressures.

US Pat. No. 9,096,207

HYBRID VEHICLE POWERTRAIN COOLING SYSTEM

Cummins Inc., Indianapol...

1. A hybrid vehicle cooling system comprising:
a closed loop coolant flowpath including
at least one valve operable to selectably direct coolant flow to an internal combustion engine or to an internal combustion
engine bypass, wherein the internal combustion engine bypass is configured to bypass the coolant flow around the internal
combustion engine,

a thermostat operable to direct coolant flow from the internal combustion engine and from the internal combustion engine bypass
to a radiator or a radiator bypass,

a plurality of hybrid powertrain components and a hybrid powertrain component bypass each positioned in the closed loop coolant
flowpath downstream of the radiator and the radiator bypass, wherein the plurality of hybrid powertrain components are positioned
in parallel to one another and in series with the internal combustion engine and the radiator, and further comprising a plurality
of control valves each associated with a respective one of the plurality of hybrid powertrain components to control coolant
flow thereto;

a mechanically driven coolant pump operable to pump coolant through the closed loop coolant flowpath; and
an electrically driven coolant pump operable to pump coolant through the closed loop coolant flowpath, wherein the electrically
driven coolant pump is positioned in series with the mechanically driven coolant pump, wherein each of the plurality of hybrid
powertrain components is positioned in series with the mechanically driven coolant pump and with the electrically driven coolant
pump to each selectively receive coolant flow produced by both of the electrically driven coolant pump and the mechanically
driven coolant pump from the radiator or the radiator bypass.

US Pat. No. 9,778,143

SYSTEM AND METHOD FOR ESTIMATING ENGINE EXHAUST MANIFOLD OPERATING PARAMETERS

Cummins Inc., Columbus, ...

10. A method for estimating an operating parameter in an exhaust manifold in fluid communication with an internal combustion
engine having an exhaust gas recirculation (EGR) conduit fluidly coupled at one end to the exhaust manifold and at an opposite
end to an intake manifold in fluid communication with the engine, a flow determiner including at last one of a flow sensor,
a temperature sensor, or a pressure sensor, wherein the flow determiner is operable to perform at least one of measuring a
mass flow rate of exhaust gas through the EGR conduit, receiving a measurement signal indicative of the mass flow rate of
exhaust gas through the EGR conduit, and estimating the mass flow rate of exhaust gas through the EGR conduit, and a cooler
disposed in-line with the EGR conduit and operable to cool exhaust gas flowing therethrough, the method comprising:
determining, by the flow determiner, a flow value corresponding to a mass flow rate of exhaust gas through the EGR conduit,
measuring, by at least one of a temperature sensor or a pressure sensor, at least one of exhaust gas pressure of the exhaust
gas exiting an exhaust gas outlet of the cooler and exhaust gas temperature of the exhaust gas exiting the exhaust gas outlet
of the cooler, and

estimating, by an engine control circuit, at least one of exhaust manifold pressure and exhaust manifold temperature as a
function of at least the flow value corresponding to the mass flow rate of exhaust gas through the EGR conduit and the at
least one of the exhaust gas pressure of the exhaust gas exiting the exhaust gas outlet of the cooler and the exhaust gas
temperature of the exhaust gas exiting the exhaust gas outlet of the cooler.

US Pat. No. 9,518,483

CAM ROCKER LEVER FOR OPERATING VALVES

CUMMINS INC., Columbus, ...

1. A cam rocker lever comprising:
an annular piece with an inner diameter;
a cam lobe disposed within the inner diameter of the annular piece;
a first linear portion extending from a first side of the annular piece; and
a second linear portion extending from a second side of the annular piece opposite the first side, wherein the first linear
portion is configured to connect to a stem of a valve such that the valve is displaced when the first linear portion is displaced.

US Pat. No. 9,243,538

REDUCED EMISSIONS INTERNAL COMBUSTION ENGINE SYSTEMS

Cummins Inc., Columbus, ...

2. A system, comprising:
an internal combustion engine to produce an exhaust gas flow;
an exhaust system including at least one vanadia selective catalytic reduction (SCR) catalyst;
an exhaust throttle upstream of the vanadia SCR catalyst, without an intervening particulate filter between the exhaust throttle
and the vanadia SCR catalyst and without an intervening oxidation catalyst between the exhaust throttle and the vanadia SCR
catalyst;

a turbocharger with a controllable wastegate upstream of the exhaust throttle; and
an EGR control valve connected with an EGR conduit connecting the exhaust system to an intake system to control recirculation
of the exhaust gas flow to the intake system; and

a controller configured to:
determine an NOx output in the exhaust gas flow downstream of the vanadia SCR catalyst;
initiate a NOx output reduction event to reduce an NOx output by the internal combustion engine in response to the NOx output
in the exhaust gas flow downstream of the vanadia SCR catalyst being greater than a threshold amount; and

at least partially close each of the wastegate and the exhaust throttle to execute the NOx output reduction event, thereby
increasing an amount of exhaust gas flow recirculated to the intake system.

US Pat. No. 9,206,756

CLOSED LOOP NOX REFERENCE MANAGEMENT FOR DPF REGENERATION BASED ON ENGINE OUT PARTICULATE MATTER VARIATION CONTROLLER

Cummins Inc., Columbus, ...

1. A method, comprising:
determining that an internal combustion engine is operating at a low temperature operating condition;
operating the internal combustion engine at a particulate emissions output value that is higher than a nominal particulate
emissions output value in response to the low temperature operating condition to warm the engine exhaust to an aftertreatment
catalyst operating condition more quickly than a nominal warmup time corresponding to the nominal particulate output value;

interpreting a NOX conversion excess capacity value corresponding to a NOX reduction device positioned downstream of a particulate filter;

interpreting a particulate amount deposited on the particulate filter; and
in response to the NOX conversion excess capacity value and the particulate amount, operating the internal combustion engine to provide a NOX output value that is higher than a nominal NOX output value.

US Pat. No. 9,539,997

METHOD OF POWER SPLIT FOR HYBRID POWERTRAIN

Cummins Inc., Columbus, ...

1. A method comprising:
calculating a quantity of available reclaimed energy in a battery, the battery structured to power an electric motor, the
motor connected to an internal combustion engine via a power splitter, wherein the battery, motor, engine, and power splitter
comprise a hybrid powertrain structured to output power to meet a power demand;

selecting a marginal displaced fuel consumption value for the engine based on incremental changes in the power contributions
of the engine and the motor that is constrained by the quantity of available reclaimed energy in the battery, wherein the
marginal displaced fuel consumption value is selected based on a desired marginal displaced fuel consumption contour line
defining a region of displaced fuel consumption for the engine from an engine operating efficiency map in which losses shared
with the motor are removed;

interpreting the power demand from a demand input device in communication with the powertrain;
operating the engine at a speed and load condition based on the marginal displaced fuel consumption value to generate engine
power to meet at least a portion of the power demand;

operating the motor to generate motor power sufficient to supply a remaining power demand not met by the engine power; and
adjusting the engine power and/or the motor power in response to changes in power demand and/or available reclaimed energy.

US Pat. No. 9,470,167

SYSTEM AND METHOD FOR ESTIMATING HIGH-PRESSURE FUEL LEAKAGE IN A COMMON RAIL FUEL SYSTEM

Cummins Inc., Columbus, ...

1. A system for determining a rate of fuel leakage in a fuel system of an internal combustion engine having a plurality of
combustion chambers, the system comprising:
a fuel accumulator positioned to receive a fuel flow;
a sensor adapted to detect fuel pressure in the fuel accumulator including during a termination event;
a plurality of fuel injectors, each fuel injector operable to deliver fuel from the fuel accumulator to one of the plurality
of combustion chambers including during the termination event; and

a control system adapted to stop the fuel flow to the fuel accumulator to define a beginning of the termination event, to
determine a fuel leakage rate in the fuel system based on the fuel pressure detected during the termination event, and to
restart the fuel flow to the fuel accumulator to define an end of the termination event.

US Pat. No. 10,041,430

SYSTEM FOR ADJUSTING A FUEL INJECTOR ACTUATOR DRIVE SIGNAL DURING A FUEL INJECTION EVENT

CUMMINS INC., Columbus, ...

1. A system, comprising:an engine having a fuel injector;
a fuel controller configured to generate control signals corresponding to a desired fueling profile of a fuel injection event; and
a fueling profile interface that outputs drive profile signals to the fuel injector in response to the control signals to cause the fuel injector to deliver an actual fueling profile, wherein the fueling profile interface changes the drive profile signals during the fuel injection event in response to the actual fueling profile delivered by the fuel injector.

US Pat. No. 9,587,572

SYSTEMS AND METHODS TO REDUCE TORSIONAL CONDITIONS IN AN INTERNAL COMBUSTION ENGINE

Cummins Inc., Columbus, ...

1. A system, comprising: an internal combustion engine having a plurality of cylinders that receive a charge flow from an
intake manifold, at least one of the plurality of cylinders comprising a primary exhaust gas recirculation (EGR) cylinder
connected to an EGR manifold that is flow connected to the intake manifold and remaining ones of the plurality of cylinders
being in flow communication with an exhaust manifold that is flow connected to an exhaust passage that emits exhaust gas from
the remaining ones of the plurality of cylinders; and a controller operably connected to the internal combustion to receive
a plurality of operating parameters associated with operation of the plurality of cylinders, wherein the controller is configured
to: determine a net torque output of each of the plurality of cylinders; determine a base net torque output from the net torque
outputs of the plurality of cylinders; determine a torque adjustment for each of the plurality cylinders as a function of
the base net torque output and the net torque output of the respective cylinder; and reduce a torque imbalance of the internal
combustion engine by adjusting a load on the engine in response to the torque adjustments for the plurality of cylinders so
the net torque output of each of the plurality of cylinders corresponds to the base net torque output.

US Pat. No. 9,461,444

FAN COOLED IGNITION COIL METHOD AND APPARATUS

CUMMINS INC., Columbus, ...

1. An ignition coil for a spark ignited internal combustion engine, comprising:
a coil body having a first end, a second end, an outer surface extending around the coil body and internal windings; and
a housing surrounding the coil body, the housing having an outer wall spaced apart from the outer surface of the coil body
thereby forming a gap between the outer surface of the coil body and the outer wall, the gap being positioned between the
first end and the second end of the coil body, and the outer wall including an opening in flow communication with the gap.

US Pat. No. 9,341,097

REDUCTANT MATERIAL DEPOSIT REDUCTION IN EXHAUST AFTERTREATMENT SYSTEMS

Cummins Inc., Columbus, ...

1. An apparatus for treating exhaust, comprising:
a reductant injector;
an aftertreatment component including a NOx reduction catalyst; and

a pathway for directing said exhaust to said aftertreatment component, said pathway including a constriction zone within which
is positioned a mixing member, said constriction zone beginning downstream of said reductant injector and upstream of said
aftertreatment component,

wherein the pathway includes a first surface upstream of and abutting the mixing member obliquely angled relative to a flow
direction of said exhaust through said constriction zone and wherein the first surface defines a boundary of the pathway in
a direction towards the mixing member.

US Pat. No. 9,340,202

ENGINE START/STOP FUNCTION MANAGEMENT AND CONTROL ARCHITECTURE

Cummins Inc., Columbus, ...

1. A method comprising:
providing a vehicle system including an engine, a plurality of engine accessories configured to be selectably driven by torque
output of the engine, an aftertreatment system configured to receive exhaust from the engine during operation, a motor/generator
system operatively coupled with the engine system, an energy storage system operatively coupled with the motor/generator system,
an engine controller operatively coupled with the engine, the aftertreatment system, the motor/generator system and the energy
storage system, and a plurality of operator controls in operative communication with the engine controller;

while the engine is running, operating the engine controller to conditionally stop the engine based upon a plurality of stop
request criteria processed by a stop request block implemented in the engine controller and a plurality of stop capability
criteria processed by a stop capability block implemented in the engine controller, the processing of the stop request criteria
establishing when the engine controller will request an engine stop and the processing of the stop capability criteria establishing
a constraint on the engine controller to conditionally prevent engine stop; and

after the engine has stopped, operating the engine controller to conditionally start the engine based upon a plurality of
start request criteria and a plurality of start capability criteria;

wherein the stop request block is structured to receive as input and to evaluate a first plurality of values indicating a
condition of the operator controls, a velocity condition of the vehicle system, an operating condition of the vehicle accessories,
an operating condition of the engine, and a request provided by a second controller external to the engine controller; and

wherein the stop capability block is structured to receive as input and to evaluate a second plurality of values and the engine
controller will conditionally prevent engine stop as long as the evaluation of at least one of said second plurality of values
indicates a condition preventing engine stop.

US Pat. No. 9,650,042

SYSTEMS AND METHODS FOR ROUTE PLANNING

Cummins Inc., Columbus, ...

1. A method, comprising:
receiving, from a plurality of input devices in a vehicle system, route information for each of a plurality of possible routes,
vehicle information of the vehicle system, and cargo load information for each of one or more cargo loads and a performance
target, wherein the performance target includes at least one of a cost minimization strategy, a system wear minimization strategy,
and an income maximization strategy;

determining, with a controller, a model of the vehicle system based on at least one of a powertrain, an air handling system,
a fuel management system, and an exhaust aftertreatment system, the powertrain including an engine and a transmission;

running a simulation based on the model of the vehicle system, the route information, the vehicle information, the cargo load
information, and the performance target; and

determining one or more route reference recommendations based on a result of the simulation.

US Pat. No. 9,670,855

SYSTEM, METHOD, AND APPARATUS FOR MANAGING AFTERTREATMENT TEMPERATURE

Cummins Inc., Columbus, ...

1. A method, comprising:
interpreting an aftertreatment indicating temperature;
determining that an engine fueling requirement is zero; and
disengaging the engine from a transmission in response to the aftertreatment indicating temperature falling below a first
threshold value and in response to the engine fueling requirement being zero during a disengagement period, wherein the engine
and the transmission comprise a portion of a vehicle powertrain.

US Pat. No. 9,605,584

METHOD AND SYSTEM TO DIAGNOSE THERMOSTAT FAILURE IN ENGINE WITH ONBOARD DIAGNOSTICS

Cummins Inc., Columbus, ...

1. A method for diagnosing thermostat failure in an engine comprising:
determining when the engine is providing a high output operation based on an engine output parameter exceeding a high output
operation threshold value, wherein the high output operation threshold value is determined in response to an ambient air temperature
value, and

in response to the determining the engine is providing the high output operation:
determining the temperature of an engine coolant, and
determining that a thermostat has passed in response to determining the temperature of the engine coolant exceeds a first
temperature threshold value.

US Pat. No. 9,194,307

MULTI-FUEL FLOW SYSTEMS AND METHODS WITH DEDICATED EXHAUST GAS RECIRCULATION

Cummins Inc., Columbus, ...

1. A method, comprising:
operating an internal combustion engine including a plurality of cylinders, at least one fuel source that is connected to
the plurality of cylinders, an exhaust system, and an intake system, at least one of the plurality of cylinders being a dedicated
cylinder operably connected to provide exhaust flow to a dedicated exhaust gas recirculation system and a remaining portion
of the plurality of cylinders being operably connected to provide exhaust flow to the exhaust system;

providing a first fuel flow from the at least one fuel source to each of the plurality of cylinders; and
providing a second fuel flow from the at least one fuel source to each dedicated cylinder while providing the first fuel flow
to each of the plurality of cylinders.

US Pat. No. 9,103,251

DEVICES AND METHODS FOR COMPLIANT AFTERTREATMENT COMPONENT ASSEMBLY

Cummins Inc., Columbus, ...

1. A system, comprising:
an internal combustion engine;
a controller to control operation of the internal combustion engine;
an aftertreatment system coupled to the internal combustion engine to receive an exhaust gas stream from the internal combustion
engine, the aftertreatment system including at least one component for treatment of constituents in the exhaust gas stream,
wherein the at least one component includes a sensor associated therewith; and

a connection device associated with the at least one component that is electrically connected to the controller, the connection
device including a housing and an indicator device in the housing that is connected between the sensor and the controller
with a wiring harness, the indicator device including one or more capacitors in parallel with the sensor and the controller,
the one or more capacitors configured to generate an input signal to the controller corresponding to a unique capacitance
value that identifies the at least one component, wherein the controller is configured to determine, based on the input signal,
whether the at least one component is approved for use with the internal combustion engine.

US Pat. No. 9,506,429

SYSTEM AND METHOD FOR CONTROL OF FUEL INJECTOR SPRAY USING ULTRASONICS

Cummins Inc., Columbus, ...

1. A fuel system for supplying a fuel to a combustion chamber of an internal combustion engine, the system comprising:
a fuel injector including an injector body having a longitudinal axis, a nozzle housing secured to the injector body and including
at least one injector orifice in communication with the combustion chamber, a fuel injector cavity, a nozzle valve element
extending longitudinally along the fuel injector, an actuator adapted to receive an injection signal and to cause movement
of the nozzle valve element in response to the injection signal to permit fuel flow from the injector cavity through the at
least one injector orifice to the combustion chamber to form an injection event, and an ultrasonic exciter system positioned
in the fuel injector cavity and adapted to receive an ultrasonic actuation signal and to generate ultrasonic vibrations in
the fuel injector cavity in response to the ultrasonic actuation signal, and movement of the nozzle valve element is independent
of the ultrasonic actuation signal; and

a controller adapted to generate and transmit the injection signal to initiate the injection event at a first time, and to
generate the ultrasonic actuation signal to initiate the ultrasonic exciter system to ultrasonically vibrate the fuel at a
second time during the injection event and later than the first time.

US Pat. No. 9,267,476

TWO STAGE VALVE WITH CONICAL SEAT FOR FLOW SHUT-OFF AND SPOOL KNIFE EDGE FOR METERING FLOW CONTROL

Cummins Inc., Columbus, ...

1. A metering valve, comprising:
a barrel having a central bore, at least one inlet in flow communication with the central bore, and at least one outlet in
flow communication with the central bore; and

a spool disposed for reciprocal motion within the central bore of the barrel, the spool including a ball tip, a metering edge,
and at least one bore extending from a first orifice to a second orifice;

wherein the spool is moveable between a closed position, wherein the ball tip engages a conical seat formed in a wall of the
barrel to prevent fluid flow between the at least one inlet and a lower chamber of the central bore and the metering edge
is disposed in the lower chamber to prevent fluid flow between the lower chamber and the at least one outlet, and an opened
position, wherein the ball tip is spaced apart from the conical seat to permit fluid flow between the inlet and the lower
chamber and through the at least one bore of the spool into an upper chamber of the central bore to thereby equalize pressure
of the fluid on the spool, and the metering edge is disposed in a flow path of the at least one outlet to permit fluid flow
between the lower chamber and the at least one outlet.

US Pat. No. 9,115,630

DIAGNOSTIC FOR A MID-CATALYST NH3 SENSOR

Cummins Inc., Columbus, ...

1. A method, comprising:
operating an internal combustion engine to produce an exhaust gas to an aftertreatment system including a selective catalytic
reduction (SCR) catalyst having a first catalyst portion and a second catalyst portion downstream of the first catalyst portion,
the aftertreatment system including an NH3 sensor at a position between the first and second catalyst portions;

enabling a diagnostic of the NH3 sensor in response to a temperature condition of the SCR catalyst exceeding a first threshold and a flow rate of the exhaust
gas being less than a second threshold;

in response to enabling the diagnostic, estimating an NH3 amount at the position of the NH3 sensor in response to a NOx amount to an inlet of the first catalyst portion and a diagnostic ANR value greater than 1;

injecting a reductant amount into the exhaust gas in response to the diagnostic ANR value and the NOx amount to the inlet of the first catalyst portion;

measuring an NH3 amount with the NH3 sensor in response to injecting the reductant amount; and

determining a fault condition of the NH3 sensor in response to a deviation of the measured NH3 amount from the estimated NH3 amount.

US Pat. No. 9,644,520

CONTROL SYSTEM FOR DETERMINING BIOFUEL CONTENT

Cummins Inc., Columbus, ...

1. A system, comprising:
an internal combustion engine having an air intake, a fuel inlet connected to a fuel tank, and an exhaust outlet;
a NOx sensor operably coupled to the exhaust outlet and structured to provide an exhaust O2 value; and

a controller including a plurality of modules implemented in at least one of hardware and a computer readable medium, the
plurality of modules structured to control a fueling operation of the internal combustion engine with fuel from the fuel tank,
the plurality of modules comprising:

an operation conditions module structured to interpret an intake O2 value, the exhaust O2 value, and a biofuel O2 correlation;

an O2 fuel determination module structured to determine an O2 biofuel value in response to the intake O2 value, the exhaust O2 value, and the biofuel O2 correlation;

a fuel composition module structured to determine a tank biofuel value for the fuel in the fuel tank in response to the O2 biofuel value; and

a biofuel reporting module structured to provide the tank biofuel value and the tank biofuel value is utilized by the controller
to control the fueling operation of the internal combustion engine, wherein the o oration conditions module is further structured
to interpret a current operating condition, an exhaust NOx value, and a biofuel NOx correlation, the controller further comprising a NOx fuel determination module structured to determine a NOx biofuel value in response to the current operating condition, the exhaust NOx value, and the biofuel NOx correlation, and wherein the fuel composition module is further structured to determine the tank biofuel value in response
to the NOx biofuel value.

US Pat. No. 9,162,669

SYSTEMS AND METHODS FOR CONTROL OF POWERTRAINS WITH REGENERATIVE START/STOP ALTERNATOR FUNCTIONALITY

Cummins Inc., Columbus, ...

1. A system, comprising:
an engine having an output shaft;
a motor/generator operatively coupled with the output shaft;
an RSSA electronics module comprising an inverter operatively coupled with the motor/generator, a DC link including a supercapacitor,
the DC link operatively coupled with the inverter, and a DC/DC converter including a high voltage side operatively coupled
with the DC link and a low voltage side;

a low voltage power system, including a battery, operatively coupled with the low voltage side of the DC/DC converter; and
a controller configured to receive a torque request input and selectably control the system to operate in a generator mode
and an engine assist mode in response to the torque request input;

wherein the controller operating in the generator mode is further configured to:
determine a low voltage side target of the DC/DC converter based upon one or more low voltage side conditions of the DC/DC
converter and/or one or more high voltage side conditions of the DC/DC converter,

determine a first high voltage side target of the DC/DC converter based upon the low voltage side target and the one or more
of the low voltage side conditions and/or the one or more high voltage side conditions,

determine a first target motor/generator torque based upon a ripple compensation torque and at least one of the low voltage
side target and the high voltage side target, and

control the torque provided to the motor/generator based upon the first target motor/generator torque.

US Pat. No. 9,765,712

SYSTEM AND METHOD FOR TURBOCHARGER COMPRESSOR SURGE CONTROL

CUMMINS INC., Columbus, ...

1. A system for controlling turbocharger compressor surge, comprising:
an internal combustion engine having intake and exhaust manifolds;
a turbocharger including a compressor having an inlet fluidly coupled to ambient and an outlet fluidly coupled to the intake
manifold;

an exhaust gas recirculation (EGR) valve disposed in-line with an EGR conduit fluidly coupled between said intake and exhaust
manifolds, said EGR valve responsive to an EGR valve control signal to control exhaust gas flow therethrough;

a variable geometry turbine (VGT) fluidly coupled to the exhaust manifold, the VGT responsive to a VGT control signal to control
the geometry thereof; and

a control computer configured to determine torque demand, and at least one of pressure across the compressor and a pressure
gradient ratio (?P/P) between the exhaust manifold and the intake manifold, the control computer determining that a first
condition is met in response to the torque demand decreasing at a rate greater than a first threshold, and that at least one
of a second condition is met in response to the pressure across the compressor being greater than a second threshold, and
a third condition is met in response to the pressure gradient ratio (?P/P) between the exhaust manifold and the intake manifold
being greater than a third threshold; the control computer being configured to:

1. close the EGR valve in response to the first condition being met, and at least one of the second condition and the third
condition being met,

2. lessen a restriction provided by the VGT responsive to the first condition being met, and at least one of the second condition
and the third condition being met;

3. cause default operation of the EGR valve in response to the first condition no longer being met or the at least one of
the second condition and the third condition no longer being met and

4. cause default operation of the VGT in response to the first condition no longer being met or the at least one of the second
condition and the third condition no longer being met.

US Pat. No. 9,724,685

SOLID STORAGE MEDIA CHARGING WITH AMMONIA FOR USE IN SELECTIVE CATALYTIC REDUCTION

Cummins Inc., Columbus, ...

1. A method, comprising:
introducing into a cartridge containing a solid storage media a quantity of gaseous ammonia diluted in a cooled carrier gas
to charge the solid storage media with ammonia, wherein the cartridge is used in an exhaust aftertreatment system and the
ammonia is released from the cartridge to treat exhaust gas emissions.

US Pat. No. 9,243,581

ENGINE CONTROL SYSTEM AND METHOD BASED ON FUEL QUALITY

CUMMINS INC., Columbus, ...

1. An engine control unit (ECU) comprising:
one or more input(s) configured to receive an actual sulfur level in a fuel provided to an engine and receive a geographic
location signal indicating the current geographic location of the engine;

a processor coupled to the one or more inputs configured to:
interpret the actual sulfur level and geographic location signal;
determine whether the actual sulfur level exceeds a predetermined sulfur limit;
determine a maximum emission level of an engine;
determine whether an emission standard is regulated or unregulated;
wherein a regulated emission standard corresponds to an emission limit in the current geographic location at or below than
the maximum emission level of the engine, and

wherein an unregulated emission standard corresponds to no emission regulation in the current geographic location or an emission
limit in the current geographic location beyond the maximum emission level of the engine; and

in response to an actual sulfur level exceeding the predetermined sulfur limit and an unregulated emission standard, produce
an engine modification signal; and

one or more output(s) coupled to the processor and configured to provide the engine modification signal.

US Pat. No. 10,029,693

ACTIVE ACCELERATION LIMIT MANAGEMENT AND GEAR SHIFT SCHEDULING BASED ON DRIVING ENVIRONMENT

Cummins Inc., Columbus, ...

1. A method for controlling performance of a vehicle, comprising:using one or more sensors to sense at least one of acceleration and deceleration of the vehicle; and
using an electronic control module (“ECM”) to adjust at least one of an engine output torque limit and a transmission shifting schedule for the vehicle in response to the sensed at least one acceleration and deceleration;
wherein using an ECM to adjust at least one of an engine output torque limit and a transmission shifting schedule comprises:
increasing the engine output torque limit in response to a decrease in a frequency of the sensed at least one acceleration and deceleration of the vehicle and
decreasing the engine output torque limit in response to an increase in the frequency of the sensed at least one acceleration and deceleration of the vehicle.

US Pat. No. 9,850,872

SYSTEM AND METHOD FOR ADJUSTING ON-TIME CALIBRATION OF A FUEL INJECTOR IN INTERNAL COMBUSTION ENGINE

Cummins Inc., Columbus, ...

1. A method of calibrating fuel injectors of an engine, comprising:
providing a control system including an engine shutdown sensor, an accumulator pressure sensor, and at least one processor
having a non-transitory computer-readable medium configured to receive a plurality of instructions;

receiving, by the processor, an engine shutdown value indicating that the engine is shut down from the engine shutdown sensor;
providing a fuel injection value, from the processor to at least one of the fuel injectors, to initiate a single fuel injection
event for the one of the fuel injectors corresponding to a cylinder in response to the engine shutdown value when the engine
is shut down;

receiving, by the processor, a pressure value, from the accumulator pressure sensor, representing a fuel pressure over a period
of time, which includes the fuel injection event;

calculating, by the processor, an amount of fuel actually injected in response to the pressure value;
producing, by the processor, a deviation value in response to the amount of fuel and a commanded amount of fuel; and
determining, by the processor, a correction factor for the injector in response to the deviation value.

US Pat. No. 9,435,310

HYDRAULIC START-OF-INJECTION DETECTING SYSTEM AND METHOD

CUMMINS INC., Columbus, ...

1. A method of detecting hydraulic start-of-injection (SOI) timing of a fuel injector following a commanded SOI for each fuel
injector fluidly connected to a cylinder of an internal combustion engine, comprising:
sampling a pressure in a combustion chamber of the cylinder of the internal combustion engine over a time period including
an electrical SOI and an electrical end of injection for a single SOI event to obtain a signal based on the sampled pressure;

using a processor, calculating a wavelet transform of the signal based on the sampled pressure to determine a frequency band
of pressure pulsations excited from a fuel jet injected into the cylinder during the time period; and

determining a time of hydraulic SOI timing of the fuel injector as a time when an amplitude value of a wavelet transformed
signal corresponding to the frequency band of pressure pulsations satisfies a predetermined threshold value.

US Pat. No. 10,093,299

ROUTE-VEHICLE ROAD LOAD MANAGEMENT AND/OR OPERATOR NOTIFICATION THEREOF

Cummins Inc., Columbus, ...

1. A method, comprising:receiving, with a cycle efficiency management (CEM) module, conditions of a vehicle including an operator defined parameter, a fuel amount, a weather condition, a current vehicle condition, and a route condition;
determining, with the CEM module, one or more vehicle trip conditions based on at least one of the fuel amount, the weather condition, the route condition, the current vehicle condition, and the operator defined parameter;
determining, with the CEM module, to switch an operation mode of the vehicle from an active control mode to a passive control mode or from the passive control mode to the active control mode based on the one or more vehicle trip conditions and at least one of the fuel amount, the weather condition, the route condition, the current vehicle condition, and the operator defined parameter; and
controlling, with the CEM module, the vehicle to operate in the operation mode determined by the CEM module,
wherein controlling the vehicle in the passive control mode includes:
determining, with the CEM module, an operator feedback command based on at least one of the fuel amount, the weather condition, the route condition, the current vehicle condition, and the operator defined parameter,
providing the operator feedback command from the CEM module to a human machine interface (HMI), and
providing, with the human machine interface, a feedback indicator based on the operator feedback command,
wherein controlling the vehicle in the active control mode includes:
determining, with the CEM module, a control command based on the one or more vehicle trip conditions and at least one of the fuel amount, the weather condition, the route condition, the current vehicle condition, and the operator defined parameter, and
providing the control command from the CEM module to an engine control unit for controlling, at least one aspect of the vehicle based on the control command.

US Pat. No. 9,835,099

ENGINE FEEDBACK CONTROL SYSTEM AND METHOD

Cummins Inc., Columbus, ...

1. A system, comprising:
a selection circuit configured to select, for an operating point of an internal combustion engine, one operating parameter
lever and one emissions characteristic, said selected operating parameter lever related to one of an exhaust gas recirculation
fraction or a charge air mass flow;

a reference retrieving circuit adapted to retrieve a stored pre-calibrated reference value associated with the selected emissions
characteristic for the selected operating parameter lever, said pre-calibrated reference value based on predetermined reference
data associated with a respective operating point of a nominal internal combustion engine;

a difference calculating circuit adapted to:
receive data corresponding to a measured value of the selected emissions characteristic, and
calculate a difference between the pre-calibrated reference value of the selected emissions characteristic for the nominal
internal combustion engine and the measured value of the selected emissions characteristic for the internal combustion engine;

a controller adapted to provide a control instruction based on the calculated difference; and
an operating parameter adjustment circuit adapted to:
receive the control instruction,
determine an adjustment factor value based on the control instruction and the operating point,
retrieve a stored operating parameter reference value related to selected operating parameter lever for the respective operating
point, and

store an adjusted value of the stored operating parameter reference value based on the adjustment factor value;
wherein the controller is adapted to operate the internal combustion engine based on the stored adjusted value of the stored
operating parameter reference value.

US Pat. No. 9,272,621

SYSTEMS AND METHODS FOR VEHICLE SPEED MANAGEMENT

Cummins Inc., Columbus, ...

1. An apparatus for managing vehicle speed comprising a computer processor, and a computer memory operatively coupled to the
computer processor, the computer memory having disposed within it computer program instructions that, when executed by the
computer processor, causes the apparatus to:
determine a route grade and a route distance associated with a travel route of a vehicle;
determine at least one of a section grade and a section length for a plurality of route sections of a travel route for the
vehicle based on at least a portion of each of the route grade and the route distance;

determine a cruise control speed mode for the vehicle for each of the plurality of route sections based on at least one of
the section grade and the section length;

determine a speed reference command of the vehicle based on at least one of the cruise control speed mode, the section length,
the section grade, a current speed and at least one of a sensed fuel level, a sensed engine condition, and a sensed environmental
condition; and

issue a speed reference command to control a speed of the vehicle.

US Pat. No. 9,261,002

FEED-BACK FOR CLOSED-LOOP SELECTIVE CATALYTIC REDUCTION CONTROL

Cummins Inc., Columbus, ...

1. A system for controlling the operation of an SCR system of an engine system, the system comprising:
an electronic controller configured to:
output an adjusted target SCR conversion efficiency value, the adjusted target SCR conversion efficiency value being a target
SCR conversion efficiency value that is adjusted based on a quantity of reductant slippage from the engine system;

determine a reductant to NOx ratio that is based, at least in part, on the adjusted target SCR conversion efficiency value and an SCR conversion efficiency
model, and further adapted to output a target reductant dosing command using the reductant to NOx ratio;

output a first frequency adaption value, the first frequency adaption value indicative of an impact one or more first frequency
variations in the engine system have on at least the adjusted target SCR conversion efficiency value; and

output a second frequency adaption value that is indicative of an impact one or more second frequency variations has on the
target SCR conversion efficiency value, the one or more first frequency variations having a higher frequency than the one
or more second frequency variations.

US Pat. No. 9,181,888

SELECTIVELY TRAPPING AND STORING SO3 IN AN EXHAUST GAS EFFLUENT

Cummins Inc., Columbus, ...

1. A method, comprising:
producing an exhaust gas effluent from an internal combustion engine containing sulfur including a fraction of SO3 and a remaining portion of sulfur constituents;

selectively trapping the fraction of SO3 produced by the internal combustion engine from the sulfur in the exhaust gas effluent upstream of a catalyzed aftertreatment
component while limiting activity in oxidizing SO2 to SO3 in the remaining portion of the sulfur constituents so the fraction of SO3 that is trapped is smaller than the remaining portion of the un-oxidized sulfur constituents; and

passing the remaining portion of the un-oxidized sulfur constituents to the catalyzed aftertreatment component.

US Pat. No. 9,802,257

CHUCK FOR HOLDING PRECISION COMPONENTS

Cummins Inc., Columbus, ...

1. A chuck assembly, comprising:
a mandrel including an extension formed on the mandrel and sized and shaped to hold a workpiece;
a housing coupled to the mandrel; and
a piston disposed within the housing and including a bore receiving the extension, the piston mounted for supported movement
on the extension toward the mandrel to first position providing for insertion and removal of the workpiece to and from the
extension, and away from the mandrel to a second position causing gripping force to be applied to the workpiece in at least
two locations that are spaced longitudinally along the workpiece to inhibit relative movement between the mandrel and the
workpiece.

US Pat. No. 9,410,520

INTERNAL COMBUSTION ENGINE INCLUDING AN INJECTOR COMBUSTION SEAL POSITIONED BETWEEN A FUEL INJECTOR AND AN ENGINE BODY

Cummins Inc., Columbus, ...

1. An internal combustion engine including a fuel injector assembly for mounting in an engine cylinder head, comprising:
an engine cylinder head sealing surface;
a fuel injector body including a longitudinal axis, a nozzle element housing, and a nozzle retainer; and
an injector seal assembly positioned between the fuel injector body and the engine cylinder head, the injector seal assembly
including a seal component formed of a first material, the seal component positioned in a space formed longitudinally between
the fuel injector body and the engine cylinder head sealing surface for receiving a fuel injector clamp load, and a thermally
conductive component formed of a second material different than the first material, the second material having a higher thermal
conductivity than the first material, and the thermally conductive component positioned radially between the nozzle element
housing and the seal component to transfer heat from the nozzle element housing to the seal component, the fuel injector clamp
load transmitted to the engine cylinder head sealing surface through the seal component and independent of the thermally conductive
component.

US Pat. No. 9,384,453

ENGINE DIAGNOSTIC SYSTEM FOR HIGH VOLUME FEEDBACK PROCESSING

Cummins Inc., Columbus, ...

1. An engine diagnostic system comprising:
an analytics module structured to receive data regarding each engine diagnostic session in a plurality of engine diagnostic
sessions, and generate an audit trail based on the data for each engine diagnostic session;

a data filtering module structured to receive a plurality of audit trails and determine a quality of each audit trail in the
plurality of audit trails, wherein each determined quality audit trail is stored and each determined low quality audit trail
is removed, and wherein the determined low quality is based on an indication of the analytics module receiving at least one
of too many and too few symptoms regarding an engine malfunction in an engine diagnostic session; and

a dashboard module structured to receive each stored audit trail and provide one or more reports related to each stored audit
trail;

wherein the analytics module is structured to receive the one or more reports and provide at least one potential repair solution
in a subsequent engine diagnostic session based on the one or more reports.

US Pat. No. 9,267,456

EMISSIONS REDUCTIONS THROUGH REGENT RELEASE CONTROL

Cummins Inc., Columbus, ...

1. A system, comprising:
an internal combustion engine providing an exhaust stream including an amount of NOx;

an ammonia introduction device structured to introduce one of ammonia and an ammonia precursor into the exhaust stream;
an ammonia storage device that stores ammonia during at least a portion of the engine operation, wherein the ammonia storage
device includes a catalyst;

a controller structured to:
determine whether an ammonia storage device has a stored quantity of ammonia;
predict an impending ammonia release from the ammonia storage device by determining that a load value for the engine has increased
beyond a threshold;

determine a NOx increase amount in response to the impending ammonia release; and

increase an amount of NO provided by an engine based on the NOx increase amount.

US Pat. No. 10,048,228

SYSTEMS AND METHODS FOR ESTIMATING FUEL TYPE AND FUEL PROPERTIES USING SONIC SPEED

CUMMINS INC., Columbus, ...

1. A diagnostic system comprising:a pressure sensor;
a determiner in communication with the pressure sensor, wherein the determiner is structured to estimate a sonic speed of a fuel in response to identification of a fundamental oscillation frequency, a temperature of the fuel and a pressure of the fuel.

US Pat. No. 9,222,389

SYSTEMS AND METHODS FOR CONTROLLING REDUCTANT DELIVERY TO AN EXHAUST STREAM

Cummins Inc., Columbus, ...

1. A method, comprising:
operating an engine with an aftertreatment system, the aftertreatment system including a reductant source and a supply line
connecting the reductant source to an exhaust flow path of the aftertreatment system including a NOx conversion catalyst;

determining a reductant feed rate to meet a NOx emissions level target of an exhaust gas in the exhaust flow path of the aftertreatment system;

controlling a flow restriction device in the supply line to directly deliver a gaseous reductant released from the reductant
source at the reductant feed rate into the exhaust flow path; wherein:

controlling the flow restriction device includes determining a position of the flow restriction device in the supply line
that admits the gaseous reductant at the reductant feed rate and moving the flow restriction device to the position with an
actuator; and

determining the position of the flow restriction device includes determining a temperature and pressure of the gaseous reductant
in the supply line and a pressure of the exhaust gas in the exhaust flow path.

US Pat. No. 9,587,617

METHOD OF SPARK TIMING ADJUSTMENT FOR AN INTERNAL COMBUSTION ENGINE

Cummins Inc., Columbus, ...

1. An engine system comprising:
an engine including a plurality of cylinders having a plurality of ignition devices connected thereto, the ignition devices
configured to fire per a prescribed spark timing;

an intake system structured to direct a charge flow to the plurality of cylinders at a charge flow rate;
an exhaust system configured to receive exhaust from a first portion of the plurality of cylinders and discharge the exhaust
to atmosphere;

an exhaust gas recirculation (EGR) system configured to receive exhaust from a second portion of the plurality of cylinders
and direct the exhaust from the second portion of the plurality of cylinders to the intake system; and

a controller in communication with the engine, wherein the controller is structured to operate on a change in the charge flow
rate to adjust the spark timing, wherein the spark timing is adjusted based on an estimated change in an EGR fraction of exhaust
directed into the intake system due to the change in the charge flow rate.

US Pat. No. 9,482,136

NOX SENSOR BASED OUTPUT DISABLEMENT IN RESPONSE TO EXHAUST SYSTEM HIGH FREQUENCY PRESSURE PULSATIONS

CUMMINS INC., Columbus, ...

1. A system, comprising:
an internal combustion engine having an exhaust system for receiving an exhaust gas produced from operation of the internal
combustion engine;

a plurality of sensors including at least one sensor operable to provide a signal indicating an engine speed and at least
one sensor operable to provide a signal indicating at least one of an intake manifold pressure, an exhaust manifold pressure,
a fuel flow, an intake air flow, and a magnitude and frequency of pressure pulsations in the exhaust gas, the plurality of
sensors further including at least one engine-out NOx sensor operable to provide a signal indicative of an engine-out NOx
amount;

a controller connected to the plurality of sensors operable to interpret the signals from the plurality of sensors, wherein
the controller is configured to:

control one or more outputs of the system in response to the engine-out NOx amount from the NOx sensor;
interpret a high frequency pressure pulsation event associated with the exhaust gas affecting a stability of the engine-out
NOx sensor in response to at least one of the intake manifold pressure, the exhaust manifold pressure, the fuel flow, the
intake air flow, and the magnitude and frequency of pressure pulsations exceeding a threshold amount; and

in response to the high frequency pressure pulsation event, disable use of the engine-out NOx amount from the engine-out NOx
sensor to control the one or more outputs.

US Pat. No. 9,341,253

SCISSORS GEAR

Cummins Inc., Columbus, ...

1. An apparatus comprising:
a main gear and a bias gear, wherein said main gear and said bias gear comprise a shared axis of rotation;
said main gear defining a first hole, wherein said first hole is displaced radially from a center of said main gear;
said bias gear defining a second hole, wherein said second hole is displaced radially from a center of said bias gear;
a pin extending through said first hole and said second hole, and having a lobe thereon, wherein said lobe is disposed at
least partially within said second hole;

wherein said pin has a first rotational position and a second rotational position; and
wherein said pin is rotationally locked in said first rotational position and in said first rotational position said lobe
is clear of a side wall of said second hole, and wherein in said second rotational position said lobe alters a rotational
alignment of said bias gear relative to said main gear, wherein said pin is axially movable in said first and second holes
to unlock said pin and allow rotation of said pin from said first rotational position to said second rotational position.

US Pat. No. 9,243,541

CONTROL OF AFTERTREATMENT REGENERATION IN A HYBRID POWERED VEHICLE

Cummins Inc., Columbus, ...

9. An apparatus, comprising:
a controller comprising:
a regeneration request module structured to interpret a regeneration request index and to determine that an engine aftertreatment
regeneration is indicated in response to the regeneration request index exceeding a first threshold;

a battery consumption module structured to calculate a battery usage amount for an engine aftertreatment regeneration operation
in response to the indicated engine aftertreatment regeneration;

a battery monitoring module structured to determine an acceptable battery usage amount in response to a current battery state
of charge (current SOC) and a minimum battery state of charge (minimum SOC), wherein the acceptable battery usage amount is
increased by lowering the minimum SOC as an urgency of the engine aftertreatment regeneration indicated by the regeneration
request index increases; and

a regeneration control module structured to provide an engine aftertreatment regeneration command to initiate the engine aftertreatment
regeneration operation in response to the battery usage amount and the acceptable battery usage amount.

US Pat. No. 9,163,523

TURBOCHARGER WITH FLEXIBLE INSTALLATION

Cummins Inc., Columbus, ...

1. An apparatus comprising:
a compressor housing enclosing a bladed wheel, the compressor housing comprising a first flow passage, wherein the first flow
passage is a notch in the compressor housing that fluidly connects a volute of the compressor adjacent a first pressure responsive
region to a second flow passage, wherein the first pressure responsive region includes a compressor outlet pressure, and wherein
the second flow passage is engagable over a range of rotation angles of the compressor housing;

a turbine housing including an outlet port on the turbine housing and a fluid conduit fluidly connecting the outlet port to
an actuator, the turbine housing further including a third flow passage;

a bearing housing mechanically coupled to the compressor housing on a first side of the bearing housing and mechanically coupled
to the turbine housing on a second side of the bearing housing, wherein the second flow passage is formed between the compressor
housing and the bearing housing, wherein the third flow passage is a channel within the turbine housing that fluidly connects
the outlet port to a fourth flow passage between the turbine housing and the bearing housing, wherein the fourth flow passage
is engagable over a range of rotation angles of the turbine housing; and

wherein the bearing housing further comprises a fifth flow passage that fluidly connects the second flow passage to the fourth
flow passage.

US Pat. No. 9,151,289

FUEL PUMP

Cummins Inc., Columbus, ...

1. A fuel pump, comprising:
a fuel pump barrel including a stepped region that transitions an upper portion to a smaller diameter lower portion and a
spring disposed about at least a portion of the lower portion, said fuel pump barrel including a bore having first and second
ends separated by a length of the bore, said fuel pump barrel including an annular drain groove positioned within the at least
a portion of the lower portion, and a drain duct fluidically coupled between said drain groove and a fuel storage vessel,
said second bore end forming an opening;

a plunger positioned in said bore and extending through said bore opening to form a pumping chamber, said plunger having an
outer diameter slightly less than the bore diameter to form a clearance to facilitate reciprocating movement within said bore;

a first annular seal positioned adjacent said drain groove and located within the at least a portion of the lower portion
between said annular drain groove and said opening to define a maximum seal length along the plunger between the pumping chamber
and the annular drain groove;

a second annular seal positioned between said first annular seal and said opening forming a cavity between said first annular
seal and said second annular seal;

a leakage fluid reservoir for receiving leakage fluid from said cavity;
a leakage duct fluidically coupled between said cavity and said leakage fluid reservoir; and
a seal support configured to retain said first and second annular seals in position;
wherein the opening has a diameter that is less than a diameter of the annular drain groove; and
wherein combined leakage fluid from said bore and leakage fluid from the pumping chamber in said cavity is drained to said
leakage fluid reservoir by said leakage duct, and

a cooling duct, formed by said fuel pump barrel, having a lower end which directly opens into the drain groove, and fluidically
coupled to said drain groove, configured to permit fuel flow through the fuel pump barrel to the drain groove.

US Pat. No. 9,810,257

CONNECTING ROD LUBRICATION APPARATUS

Cummins Inc., Columbus, ...

1. An apparatus, comprising:
an elongated connecting rod extending from a first end to a second end along a central longitudinal axis;
a pin defining a rotation axis that is transversely oriented to the central longitudinal axis, the pin coupling the connecting
rod to a piston at the first end of the connecting rod, wherein the connecting rod includes a surface that extends around
and faces the pin and the rotation axis, the surface extending between opposite first and second edges spaced from one another
along the rotation axis, the surface comprising a groove arrangement that is configured to collect lubrication fluid from
at least one of the first and second edges, retain the lubrication fluid in at least one location between the first and second
edges, and distribute lubrication fluid circumferentially around the pin, wherein the groove arrangement includes a first
transverse groove portion extending generally along the rotation axis substantially across a substantial portion of a width
of the surface between the first and second edges, the first transverse groove portion includes first and second grooves that
intersect one another between the first and second edges and the first and second grooves each extend outwardly from the intersection
to respective ones of the first and second edges, and further comprising a hole opening through the surface for delivering
lubrication fluid to the surface, wherein the hole is offset from the central longitudinal axis and does not intersect the
groove arrangement.

US Pat. No. 9,512,761

SYSTEMS AND METHODS FOR NOX REDUCTION AND AFTERTREATMENT CONTROL USING PASSIVE NOX ADSORPTION

Cummins Inc., Columbus, ...

1. An aftertreatment system, comprising:
a plurality of aftertreatment components in an exhaust flowpath, the plurality of aftertreatment components including a passive
NOx adsorption device for adsorbing NOx from exhaust gases in the exhaust flowpath up to a first temperature value, a diesel particulate filter downstream of the
first passive NOx adsorption device, and a selective catalytic reduction (SCR) catalyst downstream of the diesel particulate filter, the SCR
catalyst including a NOx adsorption washcoat for adsorbing NOx from the exhaust gases above a second temperature value, wherein the SCR catalyst converts NOx to N2 above an effective reduction temperature threshold and the effective reduction temperature threshold and the second temperature
value are both below the first temperature value;

a reductant injector operationally coupled to a reductant source, the reductant injector operable to provide a reductant from
the reductant source into the exhaust flowpath upstream of the SCR catalyst; and

at least one of a first exhaust heating apparatus upstream of the passive NOx adsorption device that is configured to increase a temperature of an exhaust gas in the exhaust flowpath upstream of the passive
NOx adsorption device and a second exhaust heating apparatus downstream of the passive NOx adsorption device that is configured
to increase the temperature of the exhaust gas in the exhaust flowpath upstream of the SCR catalyst.

US Pat. No. 9,260,101

SYSTEMS, METHODS, AND APPARATUS FOR TRANSIENT TORQUE LIMITING

Cummins Inc., Columbus, ...

1. A method comprising a controller performing the following steps, the method comprising:
receiving a total torque request of a hybrid vehicle including an electric motor and an internal combustion engine;
determining an oxygen limited torque response of a conventional baseline engine;
interpreting a torque curve of the internal combustion engine;
determining a torque output value in response to the oxygen limited torque response and the torque curve; determining a zero
fueling oxygen limited torque response of the conventional baseline engine,

wherein the determining the torque output value comprises determining the torque output value corresponding to the zero fueling
oxygen limited torque response of the conventional baseline engine in response to a throttle tip-in event; and

providing an electrical torque command to the electric motor and a combustion torque command to the internal combustion engine
in response to the torque output value.

US Pat. No. 9,194,273

APPARATUS, SYSTEM, AND METHOD FOR AFTERTREATMENT CONTROL AND DIAGNOSTICS

Cummins Inc., Columbus, ...

1. A method comprising:
providing an exhaust stream for an internal combustion engine, the exhaust stream fluidly coupled to an aftertreatment component;
optically determining an amount of exhaust gas constituents in the exhaust stream during the operation of the internal combustion
engine, the exhaust gas constituents comprising urea, NO, NO2 and soot;

diagnosing the aftertreatment component in response to the amount of the exhaust gas constituents; and
wherein diagnosing the aftertreatment component comprises:
determining that a soot filter has failed in response to the optically determined amount of soot; and
determining a catalyst NO to NO2 conversion effectiveness of an oxidation catalyst in response to the optically determined amount of NO and NO2.

US Pat. No. 9,057,309

SYSTEM AND APPARATUS FOR ENHANCING EXHAUST AFTERTREATMENT STARTUP EMISSIONS CONTROL

Cummins Inc., Columbus, ...

1. A system, comprising:
an engine fluidly coupled to an exhaust stream;
a selective catalytic reduction (SCR) catalyst disposed in the exhaust stream;
a NOx reductant injector operationally coupled to the exhaust stream and fluidly coupled to one of an ammonia (NH3) source and a urea source;

a controller operably connected to the NOx reductant injector and configured to:

interpret an SCR catalyst temperature and an ambient temperature;
determine that an NH3 pre-load condition for the SCR catalyst is present in response to the ambient temperature;

determine a first amount of NH3 pre-load in response to the NH3 pre-load condition and the SCR catalyst temperature;

determine that the NH3 pre-load condition is present in response to the ambient temperature being below a cold start threshold; and

command the injector to inject an amount of urea into the exhaust stream in response to the first amount of NH3 pre-load.

US Pat. No. 10,533,508

CYLINDER DEACTIVATION ENTRANCE AND EXIT CONTROL

Cummins Inc., Columbus, ...

1. A system comprising:an internal combustion engine for propelling a vehicle, the internal combustion engine including a plurality of cylinders, each of the cylinders including at least one intake valve and at least one exhaust valve;
a valve actuation mechanism connected to each of the plurality of cylinders, the valve actuation mechanism including a lifting mechanism for opening and closing the at least one intake valve and the at least one exhaust valve of each of the cylinders;
a fueling system connected each of the cylinders for providing fuel to each of the cylinders;
a controller operably connected with the valve actuation mechanism and the fueling system, wherein the controller is configured to:
determine a cylinder deactivation event associated with the at least one cylinder is active or inactive, wherein the cylinder deactivation event includes the valve actuation mechanism being deactivated for the at least one cylinder and fueling is cut off from the at least one cylinder;
determine a route condition of the vehicle, the route condition indicating, a presence or absence of a fueling requirement of the at least one cylinder;
in response to the fueling requirement being present and the cylinder deactivation event being active, activating the valve actuation mechanism to open and close the at least one intake valve and the at least one exhaust valve before fueling the at least one cylinder with the fueling system; and
in response to the fueling requirement being absent and the cylinder deactivation event being inactive, cutting fueling to the at least one cylinder before deactivating the valve actuation mechanism.

US Pat. No. 10,001,035

HYDRAULIC LASH ADJUSTER

Cummins Inc., Columbus, ...

1. An eccentric hydraulic lash adjuster comprising:a housing having a pivot point and a longitudinal axis offset from a line parallel to the longitudinal axis and passing through the pivot point, wherein the offset is greater than 0.0 millimeters (mm).

US Pat. No. 9,464,583

CYLINDER PRESSURE BASED CONTROL OF DUAL FUEL ENGINES

Cummins Inc., Columbus, ...

1. A method, comprising:
operating an internal combustion engine system including an intake system connected to an engine with a plurality of cylinders
and at least two fuel sources operably connected to the internal combustion engine system to provide a flow of liquid fuel
to each of the plurality of cylinders and a flow of a gaseous fuel to each of the plurality of cylinders, wherein the intake
system is coupled to each of the plurality of cylinders to provide a charge flow from the intake system to a combustion chamber
of the respective cylinder, the internal combustion engine system further including an exhaust system;

determining a pressure in the combustion chamber of at least one cylinder during a combustion cycle associated with the cylinder;
determining at least one operating condition of the at least one cylinder as a function of the pressure;
determining a first part of the operating condition attributable to the liquid fuel;
determining a second part of the operating condition attributable to the gaseous fuel, wherein the second part of the operating
condition is determined from a difference between the operating condition in die at least one cylinder and the first part
of the operating condition; and

adjusting a substitution rate of the gaseous fuel for the liquid fuel in response to the operating condition deviating from
a target operating condition.

US Pat. No. 9,228,511

ENGINE FEEDBACK CONTROL SYSTEM AND METHOD

CUMMINS INC., Columbus, ...

1. A single-input-single-output control system for an internal combustion engine, comprising:
a selection module configured to select, for an operating point of an internal combustion engine, one operating parameter
lever and one emissions characteristic, said selected operating parameter lever related to one of an exhaust gas recirculation
fraction or a charge air mass flow;

a reference retrieving module adapted to retrieve a stored pre-calibrated reference value associated with the selected emissions
characteristic for the selected operating parameter lever, said pre-calibrated reference value based on predetermined reference
data associated with a respective operating point of a nominal internal combustion engine;

a difference calculating module adapted to:
receive a signal corresponding to a measured value of the selected emissions characteristic, and
calculate a difference between the pre-calibrated reference value of the selected emissions characteristic for the nominal
internal combustion engine and the measured value of the selected emissions characteristic for the internal combustion engine;

a controller adapted to provide a control signal based on the calculated difference; and
an operating parameter adjustment module adapted to:
receive the control signal,
determine an adjustment factor value based on the control signal and the operating point,
retrieve a stored operating parameter reference value related to selected operating parameter lever for the respective operating
point, and

store an adjusted value of the stored operating parameter reference value based on the adjustment factor value.

US Pat. No. 9,181,848

TURBOCHARGER EXHAUST MANIFOLD SYSTEM

CUMMINS INC., Columbus, ...

1. An engine subassembly, comprising:
an exhaust manifold including an exit conduit, the exit conduit having a first flange disposed about a peripheral portion
of the exit conduit;

a turbocharger including an entry conduit, the entry conduit having a channel formed in a wall thereof, the entry conduit
including a second flange disposed about a peripheral portion of the entry conduit, the turbocharger engaged with the exhaust
manifold such that the first flange is engaged with the second flange; and

an extension protruding axially from the exit conduit, the extension including at least one protrusion extending at least
in part in a radial direction from the extension, the protrusion configured for engagement with the channel.

US Pat. No. 9,175,970

ONLINE OPTIMAL REFUELING MANAGEMENT

Cummins Inc., Columbus, ...

1. A method for remotely providing refueling management instructions for a vehicle comprising the steps of:
determining one or more initial vehicle parameters including an initial quantity of fuel, a plurality of route parameters
including a starting point, an ending point and an estimated average fuel efficiency of the vehicle, and a plurality of refueling
parameters including one or more refueling locations;

calculating that the initial quantity of fuel is insufficient in relation to the estimated average fuel efficiency and a distance
to be traveled by the vehicle equal to a difference between the ending point and the starting point;

receiving one or more current vehicle parameters at a first predetermined time; and
calculating a refueling agenda including identifying one or more refueling locations and an associated predetermined refueling
amount at each of the identified one or more refueling locations, to provide optimal fuel economy for the vehicle arriving
at the ending point.

US Pat. No. 9,133,801

FUEL INJECTOR WITH INJECTION CONTROL VALVE SPRING PRELOAD ADJUSTMENT DEVICE

CUMMINS INC., Columbus, ...

12. A fuel injector for injecting fuel at high pressure into a combustion chamber of an internal combustion engine, comprising:
an injector body including a longitudinal axis, a proximal end, a distal end, an outer annular side surface, an outer housing,
an accumulator, a fuel delivery circuit, and an injector orifice positioned at the distal end to discharge fuel from the fuel
delivery circuit into the combustion chamber; and

an injection control valve assembly positioned along the longitudinal axis between the proximal end and the distal end, the
injection control valve assembly including a control valve member adapted to move between a first position and a second position
and an actuator adapted to cause movement of the control valve member between the first and the second positions, the actuator
including a bias spring positioned to apply a bias force to the control valve member, and a spring preload adjustment device
positioned adjacent one end of the bias spring to apply a preload to the bias spring; the spring preload adjustment device
including at least one slot extending along a plane transversely to the longitudinal axis through the external threads to
form a first set of threads and a first cantilevered portion having a second set of threads, the first cantilevered portion
deformed to extend along a first deformation angle from a plane perpendicular to the longitudinal axis.

US Pat. No. 9,074,540

EXHAUST GAS RECIRCULATION SYSTEMS WITH VARIABLE VENTURI DEVICES

Cummins Inc., Columbus, ...

1. A method for determining a recirculated exhaust gas flow rate, comprising:
determining a pumping pressure for the recirculated exhaust gas created by a variable venturi mixing device that fluidly mixes
the recirculated exhaust gas with a fresh air supply;

determining a position of a flow control element within the variable venturi mixing device; and
determining the flow rate of the recirculated exhaust gas as a function of the pumping pressure and the position of the flow
control element.

US Pat. No. 9,517,457

AFTERTREATMENT SYSTEMS WITH REDUCED N2O GENERATION

Cummins Inc., Columbus, ...

4. A system, comprising:
an internal combustion engine having an exhaust aftertreatment system for receiving an exhaust gas produced from operation
of the internal combustion engine; a reductant system including a reductant source; and

a diesel exhaust aftertreatment system that includes at least one selective catalytic reduction (SCR) catalyst positioned
downstream of a connection of the reductant source to the exhaust aftertreatment system, wherein the at least one SCR catalyst
includes at least three formulations on portions of the SCR catalyst, the at least three formulations including a first formulation,
a second formulation, and a third formulation, wherein the first formulation produces less N2O during NOx reduction by the SCR catalyst than the second formulation, wherein:

the first formulation is a vanadium based catalyst formulation, the second formulation is a copper-zeolite catalyst formulation,
and the third formulation is an iron-zeolite catalyst formulation, wherein the first formulation includes a low copper loading
washcoat applied to at least a first portion of the SCR catalyst and the second formulation includes a high copper loading
washcoat applied to at least a second portion of the SCR catalyst, wherein the first portion is upstream of the second portion.

US Pat. No. 9,476,377

SYSTEM, METHOD, AND APPARATUS FOR FUEL INJECTION CONTROL

Cummins Inc., Columbus, ...

1. An apparatus comprising:
a fuel event controller configured for use with a fuel injector for use with a common rail fuel system of an internal combustion
engine and having an injector configuration modeled by a rate shape characteristic that includes two or more of an opening
rate shape, a start of injection delay, a peak rate, a closing rate shape, an end of injection delay, and an injection duration,
the fuel event controller structured to determine one or more of the rate shape characteristics corresponding to the injector
configuration by operating upon (1) a fuel value corresponding to an estimate of the injected fuel quantity delivered from
the fuel injector; and (2) a relationship which is dictated by the injector configuration and that relates the estimate of
the injected fuel quantity to the two or more of the rate shape characteristics.

US Pat. No. 9,273,577

MULTI-LEG AFTERTREATMENT SYSTEM

Cummins Inc., Columbus, ...

1. An apparatus, comprising:
a controller structured to receive operating parameters from at least one sensor associated with an engine exhaust system,
the engine exhaust system including a diesel particulate filter (DPF) leg with a DPF and a first reductant catalyst and a
bypass leg that bypasses the DPF, the bypass leg including a second reductant catalyst, wherein the controller is structured
to:

receive and interpret a DPF delta pressure value, a flow balance correlation, a NOx input value, and an exhaust flow rate value associated with the engine exhaust system;

determine a flow imbalance value in response to the DPF delta pressure value, the flow balance correlation, and the exhaust
flow rate value;

determine a first reductant injection command and a second reductant injection command in response to the flow imbalance value
and the NOx input value; and

a first doser and a second doser each operably coupled to the controller, wherein the first doser is operable in response
to the first reductant injection command to inject reductant upstream of the first reductant catalyst and the second doser
is operable in response to the second reductant injection command to inject reductant upstream of the second reductant catalyst.

US Pat. No. 9,228,460

SYSTEMS AND METHODS FOR THERMAL MANAGEMENT OF AFTERTREATMENT SYSTEM COMPONENTS

Cummins Inc., Columbus, ...

1. A method comprising:
determining a low temperature condition of an aftertreatment system component in an exhaust system connected to an internal
combustion engine, wherein the low temperature condition is less than a stay warm temperature threshold of the aftertreatment
system component, and further comprising a source of hydrocarbons and the internal combustion engine including one or more
cylinders, wherein the source of hydrocarbons is connected to the one or more cylinders and connected to the exhaust system
downstream of the one or more cylinders and upstream of an oxidation catalyst;

initiating a warm-up mode of operation to increase a temperature of the aftertreatment component above a warmed-up temperature
threshold;

warming up the exhaust aftertreatment system component above the warmed-up temperature threshold indicating completion of
the warm-up mode of operation of the internal combustion engine connected to the exhaust system;

initiating a stay warm operating mode to maintain the exhaust aftertreatment system component above a stay warm temperature
threshold providing a desired performance of the aftertreatment system component, wherein initiating the stay warm operating
mode includes:

determining the warm-up mode of operation is complete;
determining a temperature drop of the exhaust aftertreatment component below the stay warm temperature threshold; and
dosing hydrocarbons from the hydrocarbon source for receipt into the exhaust system upstream of the oxidation catalyst in
response to initiating the stay warm operating mode to warm the exhaust aftertreatment system component to a target temperature,
wherein warming up the exhaust aftertreatment system component includes in-cylinder dosing of the hydrocarbons from the hydrocarbon
source into the one or more cylinders of the internal combustion engine during operation of the internal combustion engine
when the temperature of the oxidation catalyst in the exhaust system reaches an in-cylinder dosing temperature threshold.

US Pat. No. 9,518,528

SYSTEM AND METHOD FOR FUEL INJECTOR ON-TIME CALCULATION USING FUEL SYSTEM PRESSURE PREDICTION

CUMMINS INC., Columbus, ...

1. A fuel assembly for an engine, comprising:
a fuel accumulator;
at least one fuel injector fluidly coupled to the fuel accumulator, the fuel injector being configured to move between an
open position permitting fuel to flow from the fuel injector and a closed position inhibiting fuel flow from the injector,
each movement between the open and closed positions defining a fuel injection cycle, and the fuel injector being configured
for a plurality of fuel injection cycles; and

a control system having a controller operably coupled to the fuel injector, the controller being configured to receive at
least one parameter of the fuel assembly, wherein before each of the fuel injection cycles, the controller is configured to
determine an estimated pressure of the fuel assembly, calculate a plurality of fuel quantities based on the estimated pressure,
calculate an estimated fuel amount from the plurality of fuel quantities, and compare the estimated fuel amount to a predetermined
tolerance amount, and adjust an amount of time the fuel injector remains in the open position during each of the fuel injection
cycles in response to the parameter.

US Pat. No. 9,482,137

METHOD AND ALGORITHM FOR DIAGNOSING AN NH3 SENSOR IN AN SCR SYSTEM USING MEASUREMENTS FROM TWO CHANNELS OF THE SENSOR

Cummins Inc., Columbus, ...

1. A system, comprising:
an internal combustion engine providing exhaust gases to an exhaust conduit;
an aftertreatment system disposed in the exhaust conduit, the aftertreatment system comprising a selective catalytic reduction
(SCR) catalyst component;

a first NH3 sensing channel operationally coupled to the exhaust conduit at a position downstream of the SCR catalyst component, the first
NH3 sensing channel sensitive to NH3;

a second NH3 sensing channel operationally coupled to the exhaust conduit at the position downstream of the SCR catalyst component, the
second NH3 sensing channel more sensitive to NO2 than the first NH3 sensing channel, and the first NH3 sensing channel is more sensitive to NH3 than the second NH3 sensing channel; and

a electronic controller operationally coupled to and configured to interpret a first signal from the first NH3 sensing channel and a second signal from the second NH3 sensing channel, wherein the first and second NH3 sensing channels are operationally coupled at a position downstream of the SCR catalyst component, the controller being configured
to determine whether an NO2 concentration at the position downstream of the SCR catalyst component is below a threshold value, the controller being configured
to not enable an NH3 sensor condition diagnostic in response to the NO2 concentration being above the threshold value and to enable the NH3 sensor condition diagnostic to provide a detection comparison value in response to the NO2 concentration being below the threshold value, and further in response to a first signal from the first NH3 sensing channel and a second signal from the second NH3 sensing channel, the controller further being configured to provide an NH3 sensor condition value in response to the detection comparison value.

US Pat. No. 9,476,338

AMMONIA SENSOR CONTROL, WITH NOX FEEDBACK, OF AN SCR AFTERTREATMENT SYSTEM

Cummins Inc., Columbus, ...

1. A method, comprising:
determining an ammonia (NH3) reference target comprising a target amount of NH3 in an exhaust conduit, wherein the exhaust conduit includes a first selective catalytic reduction (SCR) catalyst and a second
SCR catalyst, and the NH3 reference target is the target amount of NH3 that occurs at a mid-bed position between the first SCR catalyst and the second SCR catalyst in response to injection of a
targeted amount of reductant upstream of the first SCR catalyst;

determining a present amount of NH3 in the exhaust conduit between the first SCR catalyst and the second SCR catalyst with an ammonia sensor that defines a separation
point between the first SCR catalyst and the second SCR catalyst at the mid-bed position;

determining an NH3 error term in response to the NH3 reference target and the present amount of NH3;

determining a reductant closer command in response to the NH3 error term;

determining an amount of NOx downstream of the second SCR catalyst, and further comprising determining a rate of change of the present amount of NH3 and adjusting one of the NH3 reference target and the reductant closer command in response to the rate of change; and

injecting, with a reductant injector, an amount of reductant in response to the adjusted one of the NH3 reference target and the reductant doser command.

US Pat. No. 9,389,145

HYBRID DIESEL ELECTRIC POWERTRAINS AND EMISSIONS TESTING THEREOF

Cummins Inc., Columbus, ...

1. A method of testing emissions of a diesel-electric hybrid powertrain, the method comprising:
providing a powertrain including a diesel engine, a motor/generator integrated with the engine to provide brake torque at
a common output shaft, and an energy storage system configured to selectably receive electrical energy from the motor/generator
and provide electrical energy to the motor/generator;

directly coupling the output shaft to a dynamometer;
operating the powertrain according to a predetermined schedule of operating criteria to provide brake torque at the output
shaft using a combination of the engine operating alone, the motor/generator operating alone, and the engine operating with
the motor/generator; and

determining emissions of NOx, particulate matter, hydrocarbon, CO, and CO2 over the predetermined schedule of operating criteria;

wherein during the operating a predetermined limit is imposed on operation of the powertrain to capture energy from the motor/generator
operating alone.

US Pat. No. 9,297,325

SYSTEMS AND METHODS FOR COMPENSATING AIRFLOW DETERMINATIONS FOR AIR COMPRESSOR BLEED

Cummins Inc., Columbus, ...

9. An internal combustion engine system, comprising:
a first airflow bound for a source of pressurization;
a first flowpath operably coupled to receive a first portion of a pressurized airflow from the source of pressurization and
structured to provide the first portion of the pressurized airflow to an air compressor;

a second flowpath operably coupled to receive a second portion of the pressurized airflow from the source of pressurization
and structured to provide the second portion of the pressurized airflow to an internal combustion engine; and

a controller operably connected to the internal combustion engine and the air compressor, the controller including a non-transitory
computer readable medium with instructions executable to:

interpret an operational status of the air compressor, a flow estimation model having been stored in a memory of the controller,
and a flow parameter of the first airflow measured by an airflow sensor and provided to the controller;

determine a fresh airflow value of the second flowpath in response to the operational status of the air compressor being active,
the flow estimation model providing a compressor flow value as the air compressor being active, and a difference between the
flow parameter of the first airflow and the compressor flow value; and

adjust a combustion parameter of the internal combustion engine in response to the fresh airflow value that compensates for
a reduction in the fresh airflow value to the internal combustion engine indicated by the compressor flow value.

US Pat. No. 9,212,614

THERMAL MANAGEMENT FOR REGENERATING AN AFTERTREATMENT DEVICE

Cummins Inc., Columbus, ...

1. A method, comprising:
operating an internal combustion engine system including an internal combustion engine with a plurality of cylinders that
receive a charge flow from an intake system, an exhaust system for receiving exhaust gas produced by combustion of a fuel
provided to at least a portion of the plurality of cylinders from a fuelling system in response to a torque request, and at
least one aftertreatment device in the exhaust system;

determining a regeneration event indication for the at least one aftertreatment device by interpreting one or more regeneration
parameters;

determining a target condition of the exhaust gas in response to the regeneration event indication, the target condition effective
to regenerate the at least one aftertreatment device, wherein the target condition includes a temperature of the exhaust gas,
a flow rate of the exhaust gas, and a ratio of NO2 to particulate matter in the exhaust gas at an inlet of the aftertreatment device; and

operating the internal combustion engine to obtain the target condition, wherein the target condition is obtained by fuelling
a subset of the plurality of cylinders to satisfy the torque request, and selecting at least one operating mode from the following:
retarding a combustion phasing to the subset of the plurality of cylinders; reducing the charge flow to the plurality of cylinders;
increasing an output of at least one of a speed and a torque of the engine; and dosing hydrocarbons upstream of the aftertreatment
device.

US Pat. No. 9,207,142

ENGINE VENTILATION SYSTEM DIAGNOSTICS USING PRESSURE MEASUREMENT

Cummins Inc., Columbus, ...

1. A system, comprising:
an engine including a chamber;
an air intake coupled to the engine, the air intake including a compressor connected to the chamber to compress air from the
air intake for supply to the chamber;

a ventilation system connecting the chamber to the air intake upstream of the compressor, the ventilation system including
a pressure sensor disposed in fluid communication with the air intake and disposed in a line connecting the air intake at
an upstream side of the compressor to the chamber and bypassing the downstream side of the compressor so that an output from
the pressure sensor measures an amount of vacuum produced by the compressor in the air intake upstream of the compressor;
and

a processor configured to determine a breach in a ventilation system of the chamber in response to the output from the pressure
sensor.

US Pat. No. 9,086,025

SYSTEMS AND METHODS FOR CORRECTING MASS AIRFLOW SENSOR DRIFT

Cummins Inc., Columbus, ...

1. A system, comprising:
an internal combustion engine having an air intake assembly;
a mass airflow (MAF) sensor operably coupled to the air intake assembly; and
a controller operably connected to the internal combustion engine and the MAF sensor, the controller comprising:
an operation conditions module structured to interpret a base calibration function of the MAF sensor, a MAF sensor input value,
and a current operating condition of the internal combustion engine;

a MAF correction module structured to determine an expected MAF value in response to the current operating condition and a
predetermined operating condition;

an error margin module structured to interpret a threshold MAF sensor difference and to determine a MAF sensor difference
in response to the expected MAF value and the MAF sensor input value;

wherein the MAF correction module is structured to determine an adjusted MAF value in response to the expected MAF value,
the base calibration function, the threshold MAF sensor difference, and the MAF sensor input value, wherein the adjusted MAF
value is based on a local adjustment of the base calibration function in response to the MAF sensor difference being less
than the threshold MAF sensor difference and the adjusted MAF value is based on a global shift of the base calibration function
in response to the MAF sensor difference being greater than the threshold MAF sensor difference; and

a MAF reporting module structured to provide the adjusted MAF value.

US Pat. No. 9,897,053

FUEL COOLED INJECTOR TIP

Cummins Inc., Columbus, ...

1. A fuel injector, comprising:
an outer housing;
a nozzle housing disposed within the outer housing;
a flow path between the outer housing and the nozzle housing, the flow path being coupled to a low pressure fuel source; and
a circumferential gap in flow communication with the flow path and extending about a tip of the fuel injector between an outer
surface of the nozzle housing and an inner surface of a combustion shield adjacent the injector tip;

wherein the circumferential gap is in flow communication with a drain gap between the outer housing and a bore for receiving
the fuel injector, the drain gap routing the low pressure fuel away from the injector tip.

US Pat. No. 9,683,508

ENGINE CONTROL SYSTEMS AND METHODS

Cummins Inc., Columbus, ...

1. A system, comprising:
a memory configured to store a parameter;
a controller coupled to the memory and configured to control air and fuel delivered to an engine in response to the parameter
such that the engine is controlled in a stoichiometric mode when the parameter has a first value and a lean mode when the
parameter has a second value,

wherein the parameter comprises at least one air-to-fuel ratio limit wherein:
the at least one air-to-fuel ratio limit includes an upper air-to-fuel ratio limit and a lower air-to-fuel ratio limit; and
the upper air-to-fuel ratio limit is different from the lower air-to-fuel ratio limit in the lean mode.

US Pat. No. 9,567,960

FUEL PUMP TAPPET ASSEMBLY

Cummins Inc., Columbus, ...

1. A fuel pump assembly for an internal combustion engine comprising:
a fuel pump housing;
a cylindrical bore defined in the fuel pump housing, wherein an upper end of the cylindrical bore is closed by a lower surface
of a cylinder head; and

a tappet assembly slideably received in the cylindrical bore, wherein the tappet assembly includes a one-piece shoe having
a recess defined in a bottom portion thereof, and a roller that is partially received within the recess and configured to
engage a cam lobe and to rotate about a roller axis, wherein the shoe comprises a peripheral surface having a cylindrical
shape that is configured to correspond to an inside surface of the cylindrical bore, wherein the shoe further comprises two
opposed end portions, wherein each of the end portions comprises a flat surface that extends across a corresponding end of
the recess beyond which a corresponding end of the roller extends, wherein along the roller axis each of the flat surfaces
is an outermost portion of the shoe.

US Pat. No. 9,453,468

SYSTEM AND METHOD FOR ESTIMATING TURBOCHARGER OPERATING SPEED

Cummins Inc., Columbus, ...

1. A method of estimating an operating speed of a turbocharger including a compressor having an air inlet and an air outlet,
the method comprising:
determining a first pressure value corresponding to pressure entering the air inlet of the compressor;
determining a second pressure value corresponding to pressure exiting the air outlet of the compressor;
determining a flow value corresponding to a flow rate of air entering the air inlet of the compressor, and
processing the flow value using a compressor pressure ratio map to generate at least one pair of turbocharger operating speed
and compressor pressure ratio values;

determining a current compressor pressure ratio value in response to the first and second pressure signals;
estimating the operating speed of the turbocharger using the current compressor pressure ratio value and the at least one
pair of the turbocharger operating speed and compressor pressure ratio values.

US Pat. No. 9,441,519

SYSTEM VARIATION ADAPTION FOR FEED-FORWARD CONTROLLER

Cummins Inc., Columbus, ...

1. A method for adapting system variation for an engine system having an after-treatment system including an SCR catalyst
and a reductant injector, the method comprising:
predicting a model SCR efficiency value;
determining a measured SCR conversion efficiency;
comparing the model SCR efficiency value to the measured SCR conversion efficiency to attain a comparison value, the comparison
value including information relating to first frequency variations and second frequency variations in characteristics of the
after-treatment system, the second frequency variations extending over a longer time duration than the first frequency variations:

removing from the comparison value information of first frequency variations of characteristics of the after-treatment system
to provide an estimated system variation value;

predicting a dosing command for the after-treatment system, the predicted dosing command being based, at least in part, on
first frequency variations in the after-treatment system;

adjusting the dosing command using the estimated system variation value; and
adjusting, based on the adjusted dosing command, a quantity of reductant released from the reductant injector of the after-treatment
system.

US Pat. No. 9,062,635

SYSTEM AND METHOD FOR ESTIMATING ENGINE EXHAUST MANIFOLD OPERATING PARAMETERS

Cummins Inc., Columbus, ...

17. A method for estimating a temperature of an exhaust manifold operatively coupled to an internal combustion engine having
an exhaust gas recirculation (EGR) conduit fluidly coupled at one end to the exhaust manifold and at an opposite end to an
intake manifold operatively coupled to the engine, and an EGR cooler disposed in-line with the EGR conduit and configured
to cool exhaust gas flowing therethrough, the method comprising of:
determining, via an engine control circuit, a flow value corresponding to a flow rate of exhaust gas through the EGR conduit,
measuring exhaust gas temperature in the EGR conduit adjacent to the exhaust gas outlet of the EGR cooler,
measuring an operating temperature of engine coolant entering the EGR cooler, and
estimating, via an engine control circuit, an exhaust manifold temperature as a function of at least the flow value and the
exhaust gas temperature in the EGR conduit adjacent to the exhaust gas outlet of the EGR cooler and the operating temperature
of engine coolant entering the EGR cooler.

US Pat. No. 9,732,715

TWO STAGE VALVE WITH CONICAL SEAT FOR FLOW SHUT-OFF AND SPOOL KNIFE EDGE FOR METERING FLOW CONTROL

CUMMINS INC., Greenwood,...

1. A metering valve, comprising:
a barrel having a central bore, a first opening in flow communication with the central bore, and a second opening in flow
communication with the central bore; and

a spool disposed for reciprocal motion within the central bore of the barrel, the spool including a tip surface, a metering
edge, and at least one bore extending between a first orifice and a second orifice;

wherein the spool is moveable between a closed position, wherein the tip surface engages a seat formed in a wall of the barrel
to prevent fluid flow between the first opening and a first chamber of the central bore and the metering edge is disposed
in the first chamber to prevent fluid flow between the first chamber and the second opening, and an opened position, wherein
the tip surface is spaced apart from the seat to permit fluid flow between the first opening and the first chamber and through
the at least one bore of the spool into a second chamber of the central bore to thereby equalize pressure of the fluid on
the spool, and the metering edge is disposed in a flow path of the second opening to permit fluid flow between the first chamber
and the second opening.

US Pat. No. 9,725,093

VEHICLE CONTROLS INCLUDING DYNAMIC VEHICLE MASS AND ROAD GRADE ESTIMATION DURING VEHICLE OPERATION

Cummins Inc., Columbus, ...

1. A method of controlling a vehicle system including an engine and a controller, the method comprising:
operating the vehicle system to propel the vehicle;
during operation of the vehicle system:
determining with the controller a vehicle mass estimate and an uncertainty of the vehicle mass estimate,
evaluating with the controller the uncertainty of the vehicle mass estimate relative to at least one criterion,
if the uncertainty of the vehicle mass estimate satisfies the criterion, determining with the controller a road grade estimate
by recursively predicting a road grade based upon a model of the vehicle system and the vehicle mass estimate, correcting
the prediction based upon a measurement of operation of the vehicle system, and providing the corrected prediction as the
road grade estimate; and

controlling with the controller utilizing the road grade estimate at least one of a vehicle speed and an engine output, wherein
the criterion comprises an uncertainty threshold and the acts of determining with the controller the vehicle mass estimate
and the uncertainty of the vehicle mass estimate and evaluating with the controller the uncertainty of the vehicle mass estimate
relative to the criterion are repeated until the uncertainty of the vehicle mass estimate is below the uncertainty threshold.

US Pat. No. 9,707,968

POWERTRAIN CONTROLS INCLUDING TRANSIENT TORQUE MANAGEMENT WITH DYNAMIC RELEASE COMPENSATION

Cummins Inc., Columbus, ...

21. A vehicle system comprising:
an engine;
a transmission; and
a control system in operative communication with the engine and the transmission, the control system being structured to:
determine an operating point of the engine, the operating point including an engine torque and an engine speed,
evaluate a relationship between the operating point and a first limit on engine torque,
modify the first limit to permit operation outside a boundary of the un-modified first limit, modification of the first limit
being constrained by a second limit on engine torque, and

adjust the operating point of the engine to increase engine torque above the boundary of the un-modified first limit,
wherein the control system is structured to modify the first limit based upon a predicted future engine operating point and
an operator adjustable weighted optimization of a demand responsiveness criterion and a fuel consumption criterion.

US Pat. No. 9,551,631

SYSTEM AND METHOD FOR ADAPTING TO A VARIABLE FUEL DELIVERY CUTOUT DELAY IN A FUEL SYSTEM OF AN INTERNAL COMBUSTION ENGINE

Cummins Inc., Columbus, ...

1. A fuel system for an internal combustion engine, the system comprising:
a fuel accumulator positioned to receive a fuel flow;
a sensor adapted to detect a fuel pressure in the fuel accumulator and to transmit a pressure signal indicative of the fuel
pressure in the fuel accumulator;

a plurality of fuel injectors, each fuel injector operable to deliver a quantity of fuel from the fuel accumulator to one
of a plurality of combustion chambers; and

a control system adapted to generate a control signal to command a stop of the fuel flow to the accumulator, to determine
an actual termination of fuel flow to the accumulator based on the pressure signal, to determine a command delay from a transmission
of the control signal to the termination of fuel flow using at least one of RPM data of the engine and crank angle data of
the engine, and to adjust an operating parameter of at least one of the plurality of fuel injectors based on the analysis
of the pressure signal.

US Pat. No. 9,249,761

EXHAUST GAS RECIRCULATION AND CONTROL WITH TWIN SCROLL TURBINES

Cummins Inc., Columbus, ...

1. A system, comprising:
an internal combustion engine including a plurality of cylinders operable to produce an exhaust flow, an exhaust system connected
to the plurality of cylinders, an intake system connected to the plurality of cylinders, and a turbocharger, the turbocharger
including a turbine in the exhaust system and a compressor in the intake system connected to the turbine, wherein

a first portion of the plurality of cylinders is operably connected to an exhaust gas recirculation system connected to the
intake system for recirculation of a first portion of the exhaust flow,

a second portion of the plurality of cylinders is operably connected to a first inlet to the turbine to provide a second portion
of the exhaust flow to the turbine through the first inlet,

a third portion of the cylinders is operably connected to a second inlet to the turbine to provide a third portion of the
exhaust flow to the turbine through the second inlet, and

the first portion of the plurality of cylinders includes first and second cylinders which are positioned physically adjacent
to one another in the engine, are commonly connected to a first exhaust manifold that is connected to the exhaust gas recirculation
system, and are exclusively dedicated to providing the first portion of the exhaust flow to the intake system.

US Pat. No. 9,187,100

HYBRID POWER TRAIN FLEXIBLE CONTROL INTEGRATION

Cummins Inc., Columbus, ...

1. An apparatus, comprising:
a first control device connected to a first load input device, wherein the first control device includes:
a torque demand module structured to interpret a total machine torque target value in response to one or more machine demand
signals determined from a first input to the first load input device, wherein the first input is a first set of torque contribution
requirements from a first torque provider and a second torque provider;

a primary torque contribution module structured to determine a first torque contribution corresponding to the first torque
provider and a second torque contribution corresponding to the second torque provider in response to the total machine torque
target value, wherein the primary torque contribution module comprises real-time feedback control of the first torque provider
and the second torque provider in response to the first torque contribution and the second torque contribution;

a torque provider control module;
a second control device connected to a second load input device, wherein the second control device includes:
a supplemental torque contribution module structured to interpret at least one supplemental torque contribution value that
adjusts at least one of the first torque contribution and the second torque contribution in accordance with one or more machine
demand signals determined from a second input to the second load input device and the second input is a second set of torque
contribution requirements from the first and second torque providers that is different from the first input to the first load
input device; and

wherein the torque provider control module is connected to the supplemental torque contribution module with a datalink that
transmits the supplemental torque contribution value to the torque provider control module in a time lag with the real-time
feedback control of the first torque provider and the second torque provider with the primary torque contribution module,
the torque provider control module structured to adjust the real-time feedback control of at least one of the first torque
contribution and the second torque contribution by integrating the supplemental torque contribution value outside of and downstream
of the real-time feedback control of the first torque provider and the second torque provider with the primary torque contribution
module.

US Pat. No. 9,109,546

SYSTEM AND METHOD FOR OPERATING A HIGH PRESSURE COMPRESSOR BYPASS VALVE IN A TWO STAGE TURBOCHARGER SYSTEM

Cummins Inc., Columbus, ...

1. An engine system comprising:
an engine;
a first turbocharger and a second turbocharger coupled to the engine, the first turbocharger being a high pressure turbocharger
with a first turbine and the second turbocharger being a low pressure turbocharger with a second turbine, and further comprising
a turbine bypass valve coupled to a turbine bypass around the first turbine, wherein the turbine bypass valve is controlled
to open in response to a turbine speed limit being reached; and

a compressor bypass valve coupled to the first turbocharger and to the engine, the compressor bypass valve comprises a mechanism
that allows the compressor bypass valve to be closed by default and allows the compressor bypass valve to be actuated passively
when acted upon by a boost pressure when the boost pressure increases above a predefined pressure threshold, wherein the compressor
boost valve actuation is accomplished solely with boost pressure and free of active control circuitry or control logic in
response to a mass flow through the engine causing the turbine bypass valve to completely open.

US Pat. No. 10,036,355

HEAT TRANSFERRING FUEL INJECTOR COMBUSTION SEAL WITH LOAD BEARING CAPABILITY

Cummins Inc., Columbus, ...

1. A fuel injector seal assembly, comprising:a seal member comprising a first section, a second section and an annular recess disposed in the first section, the first section having a first diameter and the second section having a second diameter wherein the first diameter is greater than the second diameter;
a ring seal disposed in the annular recess intermediate the seal member and a sleeve member, the ring seal structured to at least one of seal combustion gases from moving toward a body portion of a fuel injector and secure the seal member to the fuel injector; and
the sleeve member comprising a first end received by the first section of the seal member, the sleeve member further including a lengthwise portion configured to press fit around a nozzle housing of the fuel injector to cause heat transfer from the nozzle housing toward the body portion of the fuel injector.

US Pat. No. 9,903,306

SYSTEM AND METHOD FOR ACQUIRING PRESSURE DATA FROM A FUEL ACCUMULATOR OF AN INTERNAL COMBUSTION ENGINE

CUMMINS INC., Columbus, ...

1. A system for determining a fuel quantity delivered to a plurality of combustion chambers by a fuel system of an internal
combustion engine, the system comprising:
a fuel accumulator positioned to receive a fuel flow at an operating fuel pressure;
a sensor adapted to detect the operating pressure in the fuel accumulator and to transmit a pressure signal indicative of
the operating fuel pressure in the fuel accumulator;

a plurality of fuel injectors, each fuel injector operable to deliver a quantity of fuel from the fuel accumulator to one
of the plurality of combustion chambers; and

a control system adapted to receive the pressure signal during at least one load condition of the engine, to transmit a control
signal to stop the fuel flow to the fuel accumulator during the at least one load condition, to analyze the pressure signal
to determine the quantity of fuel delivered by one or more of the plurality of fuel injectors during the at least one load
condition, to transmit a control signal to restart the fuel flow to the fuel accumulator after the fuel pressure in the fuel
accumulator has decreased by a predetermined amount during the at least one load condition, to adjust an operating parameter
of at least one of the plurality of fuel injectors based on the analysis of the pressure signal, to monitor convergence of
the at least one fuel injector, and to increase a length of time between transmissions of the control signal to stop the fuel
flow to the at least one fuel injector based on the convergence of the fuel accumulator.

US Pat. No. 9,821,663

SYSTEMS AND METHODS FOR BATTERY REGENERATION BASED ON ENGINE LOADING

Cummins Inc., Columbus, ...

1. A method, comprising:
determining an engine load of an internal combustion engine mechanically coupled to an alternator, wherein a battery is electrically
coupled to the alternator;

determining a state of charge (SOC) deviation for the battery based on a target SOC of the battery and an actual SOC of the
battery;

scheduling a proportional gain in response to the determined engine load and the determined SOC deviation;
providing, with a controller, an alternator voltage command to the alternator based on the scheduled proportional gain;
determining an alternator power demand based on at least one of the scheduled proportional gain and the determined SOC deviation;
determining an alternator voltage demand based on a conversion of the alternator power demand;
providing the alternator voltage command to the alternator based on the determined alternator voltage demand; and
at least one of:
adjusting the alternator power demand by applying a hysteresis, smoothing the alternator power demand, and applying a power
limiter and further determining the alternator voltage demand in response to the adjusted alternator power demand; and

determining a limited alternator voltage demand based on at least one of a protection condition and a saturation limit and
further determining the alternator voltage command in response to the limited alternator voltage demand.

US Pat. No. 9,718,454

HYBRID CONTROLS ARCHITECTURE

Cummins Inc., Columbus, ...

1. A method of controlling a hybrid electric vehicle powertrain, the method comprising:
iteratively determining an engine output target and a battery output target with one or more electronic controllers the act
of iteratively determining comprising operating the one or more controllers to determine:

a total output demanded of the powertrain based at least in part upon an operator input,
a first battery output target based upon a battery state of charge, independent of the operator input,
a first engine output target based upon the total output demanded and the first battery output target,
a second engine output target based upon the first engine output target and an engine constraint,
a second battery output target based upon the total output demanded and the second engine output target, and
a third battery output target based upon the second battery output target and a battery or motor/generator constraint; and
operating the one or more electronic controllers to control an internal combustion engine using an engine control command
constrained by the iterative determination of the first engine output target and the second engine output target and to control
a motor/generator of the powertrain using a motor/generator command constrained by the iterative determination of the first
battery output target, the second battery output target[s], and the third battery output target, and being effective to extend
life of the battery.

US Pat. No. 9,574,490

INTERSTAGE GAS INJECTION FOR MULTI-STAGE TURBOCHARGED NATURAL GAS ENGINE

Cummins Inc., Columbus, ...

15. The system of claim 1, wherein the pressurized gaseous fuel is one of natural gas, methane, or propane.

US Pat. No. 9,133,759

SYSTEMS, DEVICES AND METHODS FOR PROVIDING AIRFLOW TO AN AIR COMPRESSOR

Cummins Inc., Columbus, ...

6. A system, comprising:
an airflow bound for a pressure source;
a first flowpath operably coupled to receive a first portion of the airflow from the pressure source after pressurization
of the airflow by the pressure source, wherein the first flowpath is configured to provide the first portion of the airflow
to an internal combustion engine;

a second flowpath operably coupled to receive a second portion of the airflow from an inlet of the pressure source, wherein
the second flowpath is configured to provide the second portion of the airflow to an air compressor without the second portion
of the airflow being pressurized by the pressure source while the first portion of the airflow is pressurized by the pressure
source;

a diverter mounted to an inlet of the pressure source, wherein the diverter is configured to create the second portion of
the airflow and is in flow communication with the second flowpath, wherein the diverter comprises:

an inner member extending between an inner inlet end and an opposite inner second end, the inner member defining a central
passage that receives the inlet of the pressure source; and

an outer member extending between an outer inlet end and an opposite outer second end that mates with the inner second end
of the inner member, the inner and outer members defining a diversion passage therebetween that opens at the inner and outer
inlet ends to receive the second portion of the airflow.

US Pat. No. 9,909,517

MULT-MODE CONTROLS FOR ENGINES SYSTEMS INCLUDING SCR AFTERTREATMENT

Cummins Inc., Columbus, ...

8. A method of controlling a system including an internal combustion engine, an exhaust aftertreatment system including an
SCR catalyst operatively coupled with the engine, and an electronic control system in operative communication with the engine
and the exhaust aftertreatment system, the method comprising:
operating the electronic control system to perform the acts of
providing a first dynamically determined weighting factor in response to performing a selected one of a plurality of calculations,
the plurality calculations utilizing at least one of different inputs pertaining to operation of the SCR catalyst, and different
calculations pertaining to operation of the SCR catalyst,

determining an operating mode of the engine in response to an engine load and an engine speed,
selecting one of a plurality of inputs in response to the operating mode of the engine to provide an interpolation weighting
factor, the plurality of inputs including the first dynamically determined weighting factor, and one or more predetermined
weighting factors,

utilizing the interpolation weighting factor to interpolate between a first set of combustion control data and a second set
of combustion control data to determine a set of combustion control values, and

controlling operation of the engine using the set of combustion control values.

US Pat. No. 9,845,711

WASTE HEAT RECOVERY SYSTEM

Cummins Inc., Columbus, ...

8. A waste heat recovery system, comprising:
a Rankine cycle (RC) circuit operable to convert heat energy of a waste heat source, said RC circuit including a boiler fluidly
connected to a pump downstream of the pump, an energy converter fluidly connected to the boiler downstream of the boiler,
a condenser fluidly connected to the energy converter downstream of the energy converter and fluidly connected to the pump
upstream of the pump, each fluid connection between the boiler, pump, energy converter and condenser comprising a conduit;

a gear assembly mechanically coupled to the energy converter, said gear assembly including a capacity for oil;
an interface positioned between the RC circuit and the gear assembly;
an oil collector positioned in the conduit between the energy converter and the condenser; and
an oil return line fluidly connected to the oil collector and operable to return to the gear assembly, due to a first pressure
of oil proximate the oil collector being higher than a second pressure of oil proximate the gear assembly due to a dynamic
pressure of the oil proximate the oil collector, oil that has moved across the interface from the gear assembly to the RC
circuit.

US Pat. No. 9,797,292

FAN COOLED IGNITION COIL METHOD AND APPARATUS

Cummins Inc., Columbus, ...

1. An ignition coil for a spark ignited internal combustion engine, comprising:
a coil body having an outer surface and internal windings; and
a housing surrounding the coil body, the housing having an outer wall spaced apart from the outer surface of the coil body
thereby forming a gap extending around the coil body between the outer surface of the coil body and the outer wall, the outer
wall including an opening in flow communication with the gap.

US Pat. No. 9,683,507

SYSTEM, METHOD, AND APPARATUS FOR CONTROLLING AN AFTERTREATMENT SYSTEM HAVING A PARTICULATE FILTER AND A RICH NOX CONVERSION DEVICE

Cummins Inc., Columbus, ...

1. A method, comprising:
determining an a first oxygen content in an exhaust stream at a position downstream of a NOx reduction catalyst with a first oxygen sensor;

determining a second oxygen content in the exhaust stream at a position downstream of a diesel particulate filter and upstream
of the NOx reduction catalyst with a second oxygen sensor; and

operating a compression ignition internal combustion engine in response to the first oxygen content and the second oxygen
content, wherein the operating is performed to provide stoichiometric conditions for the second oxygen content and excess
oxygen at the first oxygen content;

determining a third oxygen content at a position upstream of the particulate filter with one of a third oxygen sensor and
a virtual calculation of an engine-out air-fuel ration;

determining at least one of a soot oxidation rate and an amount of soot stored on the particulate filter according to the
third oxygen content compared to the second oxygen content,

wherein determining the at least one of the soot oxidation rate and the amount of soot stored on the particulate filter comprises
determining an area between a curve of third oxygen content and a curve of the second oxygen content, and performing one of
plotting and integrating the area against an independent variable; and

performing an onboard diagnostic (OBD) check on the particulate filter, wherein the performing the OBD check comprises checking
the particulate filter against performance criteria, wherein the performance criteria includes an ability of the particulate
filter to trap and oxidize soot, and providing a diagnostic value in response to the performance criteria.

US Pat. No. 9,567,940

ENGINE ARRANGEMENT FOR ENHANCED COOLING

CUMMINS INC., Columbus, ...

1. A cylinder liner, comprising:
a top portion, a mid portion, and a lower portion;
a stop located on an external surface of the mid portion;
a piston bore of diameter (D) collectively formed by the top, mid, and lower portions, the top portion having a first maximum
wall thickness that is greater than a second maximum wall thickness of the lower portion; and

a first portion in the top portion that is positioned to engage a top seal of a piston when the piston is at top dead center;
the first portion having a wall thickness that is less than the first maximum wall thickness, wherein

the first portion is positioned an axial distance (B) from a top end of the cylinder liner, wherein a ratio of distance (B)
to piston bore diameter (D) is less than 0.090, and

a ratio of distance (B) to the wall thickness of the first portion is less than 1.30.

US Pat. No. 9,528,518

SYSTEM, APPARATUS AND METHODS FOR DIVERTING AIRFLOW TO A PRESSURE SOURCE

Cummins Inc., Columbus, ...

15. A system, comprising:
a pressure source including a housing with an inlet and an outlet, the pressure source operable to pressurize at least a portion
of an airflow received by the pressure source through the inlet and to provide the pressurized portion of the airflow to the
outlet; and

a diverter including an inner member mounted in the inlet of the pressure source and an adapter member mounted around the
inlet, the inner member defining a first flowpath to provide the portion of the airflow to the pressure source for pressurization,
the inner member and the adapter member together defining a diversion passage for receiving a second portion of the airflow
diverted by the inner member into the diversion passage without the second portion of the airflow being pressurized by the
pressure source, the diversion passage providing the second portion of the airflow to a second flowpath.

US Pat. No. 10,001,070

MULTI-FUEL ENGINE CONTROLS INCLUDING MULTI-FACTOR COST OPTIMIZATION

Cummins Inc., Columbus, ...

1. A vehicle system comprising:a multi-fuel reciprocating piston engine structured to selectably combust a plurality of proportions of a first fuel type and a second fuel type;
an electronic communication system structured to receive information from a source external to the vehicle; and
an electronic control system in operative communication with the multi-fuel reciprocating piston engine and the electronic communication system;
wherein the electronic control system is structured to control a provision of the first fuel and the second fuel to the multi-fuel reciprocating piston engine using a cost factor optimization which is based at least in part upon external information received from a source external to the vehicle system by the electronic communication system.

US Pat. No. 9,822,748

RESTRICTIVE FLOW PASSAGE IN COMMON RAIL INJECTORS

Cummins Inc., Columbus, ...

1. An injector for injecting fuel at high pressure into a combustion chamber of an engine, comprising:
an injector body including:
an injector cavity defining an inner wall and a longitudinal axis; and
an injector orifice communicating with one end of the injector cavity to discharge fuel;
a plunger slidably disposed within the injector cavity adjacent the injector orifice, the plunger including an outer portion
and an inner portion at different locations longitudinally along the plunger, the outer portion having a first cross-sectional
area, the inner portion having a second cross-sectional area that is larger than the first cross-sectional area and a plurality
of surface portions including:

a guiding portion configured to substantially mate with and directly slide on the inner wall of the injector cavity, guiding
the plunger to slidably move in a direction along the longitudinal axis and substantially preventing the plunger from laterally
translating within the injector cavity; and

a restriction portion formed by an exterior surface of the inner portion disposed opposite the inner wall of the injector
cavity along a length of the inner portion, the restriction portion and the inner wall forming a restriction passage therebetween
to produce a pressure drop along the restriction passage and bias the plunger towards a closed position; and

an actuating system to control the movement of the plunger between an open and the closed positions.

US Pat. No. 9,658,077

REFUELING MANAGEMENT SYSTEM AND METHOD

Cummins Inc., Columbus, ...

1. A system, comprising:
a processor configured to
process remote data received by a first sensor and local data received by a second sensor,
determine a refueling route from at least one of the remote data or the local data and at least one vehicle parameter, the
at least one vehicle parameter including a mass of a vehicle and a mass of a load transported by the vehicle;

adjust a buffer amount of fuel remaining in a fuel tank at one or more of a plurality of refueling locations, in response
to the at least one of the local or remote data; and

a communication system configured to communicate at least the remote data to the vehicle via a communication network.

US Pat. No. 9,556,778

WASTE HEAT RECOVERY SYSTEM INCLUDING A CLUTCHED FEEDPUMP

Cummins Inc., Columbus, ...

1. An internal combustion engine, comprising:
a shaft rotatably driven by the engine;
a waste heat recovery system, including:
a working fluid circuit;
a fluid management system including a condenser, a sub-cooler, and a receiver positioned along the working fluid circuit;
a heat exchange system including a recuperator and an EGR boiler positioned along the working fluid circuit;
a feedpump positioned along the working fluid circuit and operably driven by the shaft to move a working fluid through the
working fluid circuit; and

an energy conversion system including an expander positioned along the working fluid circuit downstream from the heat exchange
system and upstream from the fluid management system;

a clutch operable in an engaged position to drivingly connect the shaft to the feedpump and a disengaged position to disconnect
the shaft from the feedpump; and

a controller operable to receive a waste heat recovery command signal, and to generate and transmit a clutch control signal
to the clutch to move the clutch between the engaged position and the disengaged position, based on the waste heat recovery
command signal, wherein at the engaged position, the controller selectively places the feedpump in connection to at least
one of the receiver through a first flow path, the sub-cooler through a second flow path, the recuperator through a third
flow path, and the EGR boiler through a fourth flow path based on the waste heat recovery command signal,

wherein the controller, based on a length of time interval for which the engine has been operating, controls the engaged or
disengaged position of the clutch and which flow path from the first, second, third, and fourth flow paths to connect the
feedpump at the engaged position of the clutch to prevent a two-phase working fluid flow from reaching the energy conversion
system.

US Pat. No. 9,556,779

LEAK DETECTION AND MITIGATION IN REDUCTANT DELIVERY SYSTEMS

Cummins Inc., Columbus, ...

14. A system, comprising:
an internal combustion engine producing an exhaust stream, the exhaust stream including an amount of NOx emitted into an exhaust
flow path;

a NOx conversion catalyst in the exhaust flow path that reduces at least a portion of the amount of NOx;
a reductant source that stores a NOx reductant in a solid storage media and a reductant supply line that receives gaseous
NOx reductant from the reductant source in response to heating of the solid storage media, wherein the supply line includes
a metering device to measure a flow rate of the gaseous reductant and provides the NOx reductant to the exhaust flow path
at a position upstream of the NOx conversion catalyst; and

a controller operably connected to one or more sensors associated with the exhaust stream and the gaseous reductant, wherein
the controller is configured to detect leakage of gaseous reductant from a reductant delivery system between the solid story
media and the exhaust flow path in response to a differential between actual operating conditions of the gaseous reductant
in the delivery system and expected operating conditions of the gaseous reductant in the delivery system being more than a
threshold amount.

US Pat. No. 10,750,628

ADAPTERS FOR ELECTRONIC CONTROL UNIT

Cummins Inc., Columbus, ...

1. A system comprising:an engine control module (ECU) including a microcontroller; and
an ECU adapter module including:
a first printed circuit board;
a housing arranged to cover at least the first printed circuit board, the housing comprising at least one ruggedized member configured to protect at least the first printed circuit board; and
a connector comprising at least one flexible circuit and configured to connect the ECU adapter module to the ECU;
wherein the first printed circuit board includes routing elements arranged such that signals from the microcontroller are directed to connection points on the first printed circuit board so as to communicate with the connector;
wherein the connector is configured to transmit signals from the first printed circuit board on a first side of the connector to a desired location on a second side of the connector;
wherein the connector is configured to connect on the first side to a generic pin arrangement; and
wherein the connector is configured to connect on the second side to an application-specific pin arrangement.

US Pat. No. 10,393,195

OPTIMIZATION OF CONCURRENT OPERATION OF PREDICTIVE CRUISE CONTROL AND IDLE COAST MANAGEMENT CONTROL

Cummins Inc., Columbus, ...

1. A system comprising:a powertrain including a prime mover and an electronically controllable clutch, the powertrain structured to selectably engage the clutch to provide power from the prime mover to drive one or more ground contacting wheels and to selectably disengage the clutch to decouple the one or more ground contacting wheels from the prime mover;
an electronic control system in operative communication with the prime mover and the electronically controllable clutch, the electronic control system comprising a predictive cruise control (PCC) controller and an idle coast management (ICM) controller, the electronic control system configured to:
operate the PCC controller to control vehicle speed using a PCC speed reference value as a speed target, the PCC speed reference value being initially set in response to operator input and being dynamically varied by the PCC controller in response to at least one of current road grade and look-ahead road grade,
operate the ICM controller to control engagement and disengagement of the electronically controllable clutch in response to at least one of the current road grade and the look-ahead road grade, and
during concurrent operation of the PCC controller and the ICM controller, operate the PCC controller to at least one of:
in response to an ICM termination event, set the PCC speed reference value using a current vehicle speed, and
in response to a downhill coasting operational state, modify the PCC speed reference value to avoid inhibiting operation of the ICM controller.

US Pat. No. 10,184,441

ENGINE START/STOP FUNCTION MANAGEMENT

Cummins Inc., Columbus, ...

1. A method for controlling, by a controller of a vehicle system that includes an engine and a power storage device, automatic starting and automatic stopping of the operation of the engine, the method comprising:determining, by the controller and while the engine is stopped, the occurrence of at least one primary condition, the at least one primary condition related to a condition of the power storage device;
based on the occurrence of the at least one primary condition, operating the controller to automatically start the operation of the engine;
after the engine has been automatically started, suspending the ability of the controller to automatically stop the operation of the engine until at least one secondary condition is satisfied; and
upon satisfaction of the at least one secondary condition, re-enabling the ability of the controller to at least automatically stop the operation of the engine.

US Pat. No. 9,845,716

TECHNIQUES FOR CONTROL OF AN SCR AFTERTREATMENT SYSTEM

Cummins Inc., Columbus, ...

1. A method, comprising:
receiving into an exhaust system including a selective catalytic reduction (SCR) catalyst an exhaust gas flow, the exhaust
system including:

a reductant injector coupled to the exhaust system at a position upstream of the SCR catalyst;
a first NOx sensor upstream of the SCR catalyst;
a second NOx sensor coupled to the exhaust system at a position downstream of the SCR, catalyst;
in response to a NOx perturbation/variation event in the exhaust gas flow, determining a first output of the first NOx sensor
and a second output of the second NOx sensor, wherein the first output is an amplitude of an impulse of the first NOx sensor
in response to the NOx perturbation/variation event and the second output is an amplitude of an impulse of the second NOx
sensor in response to the NOx perturbation/variation event;

determining an efficiency of the SCR catalyst in removing NOx from the exhaust gas flow as a function of the first output
and the second output, wherein the efficiency of the SCR catalyst is determined by:

?SCR=(CNOx,imp,in?CNOx,imp,out)/CNOx,imp,in;

wherein ?SCR is the efficiency of the SCR catalyst, CNOx,imp,in is the amplitude of the impulse/variation of the first NOx sensor, and CNOx,imp,out is the amplitude of the impulse/variation of the second NOx sensor;

determining at least one of a NOx amount downstream of the SCR catalyst and a NH3 amount downstream of the SCR catalyst as
a function of a NOx amount measured by the first NOx sensor and the efficiency of the SCR catalyst determined as the function
of the first output and the second output;

determining a reductant injection command in response to the at least one of the NOx amount and the NH3 amount; and
injecting an amount of the reductant in response to the reductant injection command.

US Pat. No. 9,790,899

EGR COOLING SYSTEM

Cummins Inc., Columbus, ...

1. An exhaust gas cooler for cooling recirculating exhaust gas, the exhaust gas cooler comprising:
an inlet manifold positioned at a first end of the exhaust gas cooler, the inlet manifold including a plurality of exhaust
gas inlet openings;

an outlet manifold positioned at a second end of the exhaust gas cooler, the outlet manifold including a plurality of exhaust
gas outlet openings;

a plurality of conduits coupled to the inlet manifold and the outlet manifold, each conduit in the plurality of conduits extending
from an exhaust gas inlet opening of the plurality of exhaust gas inlet openings in the inlet manifold to an exhaust gas outlet
opening of the plurality of exhaust gas outlet openings in the outlet manifold;

at least one side wall coupled to the outlet manifold and the inlet manifold around the plurality of conduits such that the
plurality of conduits are disposed in a region between the at least one side wall, the inlet manifold and the outlet manifold,
the at least one sidewall including:

a first coolant inlet opening adjacent the first end of the exhaust gas cooler,
a first coolant outlet opening adjacent the first end of the exhaust gas cooler,
a second coolant inlet opening, and
a second coolant outlet opening; and
a bypass conduit positioned outside of the region, the bypass conduit fluidly coupling the first coolant outlet opening to
the second coolant inlet opening, such that at least a part of a coolant flowing into the region adjacent the first end of
the exhaust gas cooler and between the plurality of conduits flows out of the region adjacent the first end via the first
coolant outlet opening, through the bypass conduit, and back into the region via the second coolant inlet opening.

US Pat. No. 9,726,091

ACTIVE CONTROL OF ONE OR MORE EGR LOOPS

Cummins Inc., Columbus, ...

1. A method, comprising:
operating an internal combustion engine including an intake system with a compressor and an exhaust system with a turbine,
a high pressure exhaust gas recirculation (EGR) loop connecting the exhaust system upstream of the turbine to the intake system
downstream of the compressor, and a low pressure EGR loop connecting the exhaust system downstream of the turbine to the intake
system upstream of the compressor;

recirculating exhaust gas to the intake system through both the high pressure EGR loop and the low pressure EGR loop to combine
with an intake air flow and provide a charge flow to an intake manifold of the internal combustion engine that includes an
EGR fraction indicative of a ratio of the recirculated exhaust gas to the charge flow;

determining a desired oxygen concentration in the charge flow to the internal combustion engine;
determining a NOx concentration in the charge flow;
determining an engine out NOx concentration in the exhaust gas; and
adjusting the EGR fraction in response to the NOx concentration in the charge flow and in the exhaust gas to adjust an actual
oxygen concentration in the charge flow toward the desired oxygen concentration.

US Pat. No. 9,694,826

VEHICLE CONTROLS FOR DETERMINING OPTIMAL GEAR SHIFTING OPPORTUNITIES USING DYNAMICALLY DETERMINED VEHICLE PARAMETERS

Cummins Inc., Columbus, ...

1. A method comprising:
operating a vehicle system comprising an engine structured to output torque, a manual transmission structured to receive torque
from the engine and output torque to one or more ground contacting members, and an electronic control system in operative
communication with the engine and the transmission, the electronic control system being structured to perform the acts of:

estimating an engine load parameter using one or more dynamically determined vehicle operating parameters,
setting an engine load threshold using one of the estimated engine load parameter and a predetermined calibratible value,
evaluating a current engine load relative to the engine load threshold,
evaluating an operator gear selection condition of the transmission,
if either the current engine load parameter exceeds the threshold or the operator gear selection is a top gear selection,
imposing a first operating speed limit on the engine, and

if the current engine load parameter does not exceed the threshold and the operator gear selection is not a top gear selection,
imposing an alternate operating speed limit on the engine, the alternate operating speed limit being lower than the first
operating speed limit.

US Pat. No. 9,599,005

SYSTEMS AND METHODS FOR ON-BOARD DIAGNOSTICS OF A PARTICULATE MATTER FILTER

Cummins Inc., Columbus, ...

1. A system comprising:
an internal combustion engine having an exhaust stream;
a particulate filter disposed downstream of and fluidly coupled to said engine, and having a filter first end and a filter
second end downstream of said filter first end;

a first temperature sensor operatively coupled to said exhaust stream and disposed between said filter first end and said
filter second end, and provides a first temperature value;

a controller, wherein the first temperature sensor is operatively coupled to the controller, and wherein the controller structurally
comprises:

a temperature sensor processing module structured to interpret said first temperature value and a reference temperature value;
a particulate filter failure threshold module structured to determine a particulate filter failure threshold value; and
a particulate filter diagnostic module structured to determine a particulate filter health value in response to an interpretation
by the temperature sensor processing module of said first temperature value and said reference temperature value and further
in response to a determination by said particulate filter failure threshold module of said particulate filter failure threshold
value.

US Pat. No. 9,429,062

METHOD AND ALGORITHM FOR PERFORMING AN NH3 SENSOR RATIONALITY DIAGNOSTIC

Cummins Inc., Columbus, ...

15. An electronic controller with instructions on a non-transitory computer readable medium operable to execute a method,
comprising:
interpreting an NH3 composition value from an output of an NH3 sensor at a position upstream of a selective reduction catalyst (SCR) element fluidly disposed in the exhaust conduit of an
engine;

interpreting a NOx composition value at a position downstream of the SCR element;

determining an NH3 sensor rationality threshold in response to the upstream NH3 composition value; and

determining an NH3 sensor health value for the NH3 sensor as indicating a sensor failure in response to the downstream NOx composition value exceeding the NH3 sensor rationality threshold.

US Pat. No. 10,163,277

IDLE ENGINE OPERATION BASED ON VEHICLE CABIN TEMPERATURE

CUMMINS INC., Columbus, ...

1. A method, comprising:determining a quantity of fuel in a fuel tank;
determining a minimum amount of fuel to remain in the fuel tank;
receiving a target cabin temperature value;
calculating an engine idle time available during which an engine is operable at idle based on the minimum amount of fuel; and
controlling engine starting and stopping in response to the engine idle time available and the cabin temperature value.

US Pat. No. 9,932,889

LUBRICATION SYSTEM FOR WASTE HEAT RECOVERY GEAR BOX

Cummins Inc., Columbus, ...

1. A lubrication method comprising:driving a lube pump with a gearbox, the gearbox including an expander shaft of an expander of a waste heat recovery system;
suctioning lubrication fluid, with the lube pump, from a lube sump in a power drive housing;
lubricating, with the lubrication fluid, an expander shaft bearing supporting the expander; and
after lubricating the expander shaft bearing, transferring the lubrication fluid to the lube sump.

US Pat. No. 9,856,818

STABILIZED ENGINE CASTING CORE ASSEMBLY, METHOD FOR MAKING AN ENGINE BODY, AND ENGINE BODY FORMED THEREBY

Cummins Inc., Columbus, ...

1. A method of casting an engine block, the method comprising:
providing a mold for the engine block, the mold including a plurality of cylinder barrel core sections, each cylinder barrel
core section of the plurality of cylinder barrel core sections including at least one curved protrusion protruding radially
outward from a cylinder barrel core section wall, formed directly on and extending circumferentially about at least a portion
of a circumferential portion of the cylinder barrel core section, the at least one curved protrusion including one or more
core prints extending therefrom, the one or more core prints connecting the at least one curved protrusion from which the
one or more core prints extends to an adjacent cylinder barrel core section in the plurality of cylinder barrel core sections;
and

casting a molten material in the mold and about the plurality of cylinder barrel core sections such that an engine block is
formed having a plurality of cylinder block walls extending between a cylinder block flange portion and a cylinder block crankcase
portion, the cylinder block walls positioned about a plurality of cylinder block openings, the plurality of cylinder block
walls housing at least one internal channel extending about at least a portion of a circumferential portion of each cylinder
block opening, the at least one internal channel formed by the at least one curved protrusions and the one or more core prints.

US Pat. No. 9,851,722

APPARATUS AND METHOD FOR GROUPING VEHICLES FOR COOPERATIVE DRIVING

Cummins Inc., Columbus, ...

1. An apparatus comprising:
an initial planning module structured to interpret one or more fleet delivery requirements, assets, drivers, and vehicle descriptions;
a tandem implementation module structured to determine a travel schedule with respect to a first vehicle and a second vehicle
that enables the first vehicle and the second vehicle to travel in tandem for a least a portion of a route in response to
input from the initial planning module; and

a scheduler module structured to provide a fleet delivery schedule to the first vehicle and the second vehicle in response
to the determination of the tandem implementation module.

US Pat. No. 9,719,437

ENGINE CONTROL SYSTEMS AND METHODS FOR ACHIEVING A TORQUE VALUE

Cummins Inc., Columbus, ...

1. A method, comprising:
determining a target fuel amount required to satisfy a net torque demand in an engine in response to a target torque and an
engine speed of an engine;

determining a base air mass flow value to the engine in response to the target fuel amount, wherein the base air mass flow
value is based on at least one of a stoichiometric air-to-fuel ratio and target ignition timing;

determining an adjusted base air mass flow value that is adjusted in response to:
a first air mass flow adjustment that is determined from an ignition timing efficiency table as a function of an engine speed
and an ignition timing deviation, wherein the ignition timing deviation is the difference between a current ignition timing
and a target ignition timing determined for a desired operating condition; and

determining an air mass flow command for operation of the engine from the adjusted base air mass flow value and a feedback
control adjustment based on a deviation of an actual torque output from a target torque output.

US Pat. No. 9,695,729

REDUCED EMISSIONS INTERNAL COMBUSTION ENGINE SYSTEMS

Cummins Inc., Columbus, ...

12. A system, comprising:
an internal combustion engine operable to receive an intake flow from an intake system and produce an exhaust as flow;
an exhaust system including at least one vanadia selective reduction (SCR) catalyst;
an exhaust throttle upstream of the vanadia SCR catalyst, without an intervening particulate filter between the exhaust throttle
and the vanadia SCR catalyst and without an intervening oxidation catalyst between the exhaust throttle and the vanadia SCR
catalyst;

a turbocharger with a controllable wastegate upstream of the exhaust throttle, the turbocharger including a turbine in the
exhaust system and a compressor in the intake system;

a reductant injector connected to a reductant source, the reductant injector being connected to the exhaust system upstream
of the vanadia SCR catalyst; and

an exhaust gas recirculation (EGR) system connecting the exhaust system to the intake system, the EGR system including an
EGR cooler to cool recirculated exhaust gas flow and an EGR control valve operable to control an amount of recirculated exhaust
gas flow.

US Pat. No. 9,567,936

PROCESSING SYSTEM AND METHOD FOR CALCULATING PRESSURE DECREASES DUE TO INJECTION EVENTS IN A HIGH-PRESSURE FUEL SYSTEM

Cummins Inc., Columbus, ...

1. A fueling method comprising:
commanding a stop of fuel flow into an accumulator;
sensing a fuel pressure in the fuel accumulator;
following said commanding, delivering a quantity of fuel from the fuel accumulator during a first injection event and a second
quantity of fuel during a second injection event subsequent to the first injection event;

acquiring first fuel pressure values indicative of the fuel pressure during a first intermediate pressure period extending
between the first injection event and the second injection event, the first pressure values representing contiguous oscillations,
each of the contiguous oscillations defining a single cycle window;

calculating a single cycle window pressure for each of at least two of the single cycle windows; and
calculating a first pressure for the first intermediate pressure period based on the single cycle window pressures of the
at least two of the single cycle windows.

US Pat. No. 9,512,836

FUEL PUMP FOR AN INTERNAL COMBUSTION ENGINE

Cummins Inc., Columbus, ...

1. A fuel pump for an internal combustion engine, comprising:
a pump housing; and
a pumping unit mounted in the pump housing, the pumping unit including:
a pumping barrel having a longitudinal axis, the pumping barrel defining a barrel bore, the barrel bore extending along the
longitudinal axis,

a pumping plunger positioned within the barrel bore so as to define a pumping chamber, the pumping plunger mounted for reciprocal
movement through an intake stroke to receive fuel in the pumping chamber and a pressure stroke to pump fuel under high pressure
from the pumping chamber,

an inlet check valve cavity in fluid communication with the pumping chamber,
an inlet check valve positioned in the inlet check valve cavity, the inlet check valve including an inlet check valve plunger
mounted for reciprocal movement in the inlet check valve cavity, the inlet check valve plunger defining an inlet plunger passage
in fluid communication with the inlet check valve cavity, and

an inlet disc positioned between the pumping chamber and the inlet check valve cavity, the inlet disc including:
at least one first passage fluidly coupling the pumping chamber and the inlet check valve cavity,
at least one second passage fluidly coupling the inlet check valve cavity and a fluid inlet passage fluidly coupled to at
least one corresponding barrel passage in the pumping barrel, and

an inlet valve seat adjacent the inlet check valve cavity.

US Pat. No. 9,347,401

LAMBDA FEEDBACK CONTROL FOR ROBUST PARTICULATE EMISSIONS PERFORMANCE

Cummins Inc., Columbus, ...

1. A method, comprising:
operating an internal combustion engine having an exhaust stream, an exhaust gas recirculation (EGR) stream, and an exhaust
NOx feedback value;

interpreting an engine speed value and an engine load value, and determining a target NOx value in response to the engine speed value and the engine load value;

determining a NOx error value in response to the target NOx value and the exhaust NOx feedback value;

operating a proportional-integral (PI) or a proportional-integral-derivative (PID) controller on the NOx error value, and controlling an EGR fraction in response to the PI or PID controller output;

determining a lambda (?) target value in response to the engine speed value and load value;
determining a ? error value in response to the ? target value and an O2 feedback value; and

adjusting the operations of the PI or PID controller in response to an absolute value of the ? error value decreasing.

US Pat. No. 9,322,361

GASEOUS FUEL MIXER FOR INTERNAL COMBUSTION ENGINE

CUMMINS INC., Columbus, ...

1. An internal combustion engine, comprising:
an intake manifold;
an air intake conduit, including a longitudinal axis, to direct an air flow along the longitudinal axis;
a plurality of fuel flow passages configured to provide a fuel flow into the air intake conduit to create a combined flow
of air and fuel; and

a check valve including a check valve member movable toward and away from the plurality of fuel flow passages along the longitudinal
axis between a closed position and an open position, the check valve member positioned downstream from the plurality of fuel
flow passages and having an upstream side and a downstream side, the check valve member operable to selectively permit the
combined flow through the air intake conduit into the intake manifold, the check valve member sized and dimensioned to induce
mixing of the fuel flow and the air flow as the fuel flow and the air flow pass from the upstream side to the downstream side.

US Pat. No. 9,080,540

ENGINE WITH INJECTOR MOUNTING AND COOLING ARRANGEMENT

Cummins Inc., Columbus, ...

1. An internal combustion engine, comprising:
an injector including a nozzle assembly having an outer surface;
a cylinder head including an injector mounting bore to receive the injector, an upper sealing portion, and a lower sealing
portion;

an upper seal positioned between said upper sealing portion and said nozzle assembly to form a fluid seal;
an engine coolant passage formed in said cylinder head to receive engine coolant to remove heat from said cylinder head, said
engine coolant passage opening into, and fluidly connected to, said mounting bore to cause coolant in said coolant passage
to contact said outer surface of said nozzle assembly; and

a lower seal positioned between said lower sealing portion and said nozzle assembly to form a fluid seal, said lower seal
including a flange and a annular cooling sleeve extending from the flange to surround a portion of the nozzle assembly, said
flange positioned between the nozzle assembly and the cylinder head to create the fluid seal and having a surface in contact
with said coolant.

US Pat. No. 10,302,038

REGULATION OF FUEL RAIL PRESSURE USING ELECTRONIC FUEL TRANSFER PUMP IN LOW PRESSURE FUEL CIRCUITS

Cummins Inc., Columbus, ...

1. A method for operating a fuel system of an internal combustion engine comprising:providing a low-pressure (LP) fuel flow from an electronic fuel transfer pump to an inlet of a high-pressure (HP) pump fluidly coupled to an HP fuel circuit;
monitoring a condition of the HP fuel circuit;
detecting whether a failure condition is impacting a high-side fuel pressure;
determining an electronic fuel transfer pump target value in response to the failure condition;
commanding the electronic fuel transfer pump to provide a modulated LP fuel flow, the modulated LP fuel flow further achieved by controlling a fuel control valve positioned upstream from the HP pump; and
regulating a low-side fuel pressure in response to the electronic fuel transfer pump target value.

US Pat. No. 10,113,521

AIR INTAKE SYSTEM FOR INTERNAL COMBUSTION ENGINE

CUMMINS INC., Columbus, ...

1. An internal combustion engine, comprising: an intake manifold; a plurality of jumper tubes coupled to the intake manifold and at least one cylinder head, the plurality of jumper tubes each having a passageway, and a central axis; wherein at least one of the plurality of jumper tubes further includes a fin portion and a rib portion, wherein the fin portion traverses a distance between two points along the interior surface of the jumper tube to define a first transverse airflow passage and a second transverse airflow passage, wherein the fin is positioned at or near an interface where the jumper tube and the intake manifold are coupled, and wherein the rib portion comprises a plurality of ribs extending radially inward from the interior surface of the jumper tube toward the central axis.

US Pat. No. 9,845,754

CONTROL OF INTERNAL COMBUSTION ENGINES IN RESPONSE TO EXHAUST GAS RECIRCULATION SYSTEM CONDITIONS

Cummins Inc., Columbus, ...

1. A system comprising:
an engine having a plurality of cylinders, the plurality of cylinders comprising at least one primary exhaust gas recirculation
(EGR) cylinder connected to provide an EGR flow to an intake of the internal combustion engine and the other cylinders comprising
non-primary EGR cylinders connected to provide an exhaust flow to an exhaust system;

at least one of an ion sensor and an optical sensor for detecting an EGR quality condition associated with the at least one
primary EGR cylinder, the EGR quality condition that is detected by the at least one sensor including at least one of unburned
hydrocarbons in the EGR flow, H2 in the EGR flow, and a CO2 amount in the EGR flow; and

a controller structured to change combustion inputs to the plurality of cylinders in response to the EGR quality condition
in the least one primary EGR cylinder.

US Pat. No. 9,742,079

CONNECTOR PAINT PROTECTION SHIELD

Cummins Inc., Columbus, ...

1. An electrical wire connector, comprising:
a connector body having a first end engageable with one or more electrical wires and a second end removably engageable with
a complementary end of a mating connector, the one or more electrical wires electrically bridgeable to one or more wires of
the complementary connector when the connector body is engaged with the complementary connector;

a movable portion configured to selectively secure an engagement between the connector body and the complementary end of the
mating connector, the moveable portion comprising a locking tab configured to move in and out of the moveable portion; and

a shield removably engaged to the connector body to cover a portion of the movable portion.

US Pat. No. 9,689,333

DUAL-FUEL ENGINE WITH ENHANCED COLD START CAPABILITY

Cummins Inc., Columbus, ...

1. An engine system, comprising:
an engine having one or more engine cylinders;
a fuel injection system coupled to receive a first fuel, optionally diesel fuel, and a second fuel that is different than
the first fuel, optionally natural gas, and to deliver the fuel into the engine; and

a controller coupled to the fuel injection system and adapted to operate the engine in a dual fuel start mode and a dual fuel
run mode.

US Pat. No. 9,644,573

SYSTEM, METHOD, AND APPARATUS FOR THERMAL MANAGEMENT WITH CHARGE AIR COOLER BYPASS

Cummins Inc., Columbus, ...

1. A system, comprising:
an internal combustion engine receiving an intake stream from an intake manifold and delivering an exhaust stream having a
temperature to an exhaust manifold;

an EGR flow path fluidly coupling the exhaust manifold to the intake manifold, the EGR flow path including an EGR cooler path
and an EGR cooler bypass path;

a turbocharger compressing intake air on a compression side and receiving work from the exhaust stream on a turbine side;
a compressed intake flow path fluidly coupling the compression side of the turbocharger to the intake manifold;
an EGR bypass valve structured to selectively divide the EGR flow between the EGR cooler path and the EGR cooler bypass path;
a charge air cooler bypass valve structured to reduce an amount of cooling of compressed intake air out of the compression
side of the turbocharger;

an aftertreatment component receiving the exhaust stream from the turbine side of the turbocharger, the aftertreatment component
requiring at least intermittent exhaust stream temperature elevation;

a fuel-consuming temperature generation system, and
a controller configured to increase the temperature of the exhaust stream from the internal combustion engine for thermal
management of the aftertreatment component by controlling a charge air cooler bypass valve and an EGR bypass valve, wherein
the controller is further configured to achieve the increase in the temperature of the exhaust stream by first utilizing the
EGR bypass valve to direct all EGR flow through the EGR cooler bypass path and, in response to an intake manifold temperature
limit of the intake manifold, switching to utilize the charge air cooler bypass valve to reduce cooling of compressed intake
air to achieve the increase in the temperature of the exhaust stream while the EGR bypass valve is closed to direct all the
EGR flow through the EGR cooler path and, in response to a required increase in the temperature of the exhaust stream not
being met while the EGR bypass valve is closed and the compressed intake air bypasses the charge air cooler, operating the
fuel-consuming temperature generation system to achieve the increase in the temperature of the exhaust stream.

US Pat. No. 9,644,590

FUEL INJECTION PRESSURE PULSATION DAMPENING SYSTEM

CUMMINS INC., Columbus, ...

1. A fuel injector for injecting fuel at high pressure into a combustion chamber of an internal combustion engine, comprising:
an injector body including a longitudinal axis, an upper body portion, a lower body portion, a fuel delivery circuit, and
an injector orifice to discharge fuel from the fuel delivery circuit into the combustion chamber, the fuel delivery circuit
including an injector cavity within the lower body portion and a plurality of injection fuel delivery passages extending longitudinally
in the injector body in fluid communication with the injector cavity to deliver injection fuel to the injector orifice, each
of the plurality of injection fuel delivery passages extending through the upper body portion from a proximal end of the fuel
injector to the injector orifice and including a passage cross sectional flow area, and at least one and less than a total
number of the plurality of injection fuel delivery passages includes an orifice defined by the injector body having an orifice
cross sectional flow area less than the passage cross sectional flow area and sized to reduce propagation of pressure waves.

US Pat. No. 9,587,567

SELECTIVE CYLINDER DEACTIVATION APPARATUS AND METHOD FOR HIGH POWER DIESEL ENGINES

CUMMINS INC., Columbus, ...

1. A method of operating an engine system, comprising:
detecting one or more engine system parameters, wherein the one or more parameters include at least one of an engine load
and an engine speed;

selecting a number of engine cylinders to fire and a fuel injection quantity per selected engine cylinder in response to the
one or more engine system parameters such that a nitrogen oxides (NOx) emission is less than a first predetermined threshold and a smoke value is less than a second predetermined threshold, wherein
selecting the number of engine cylinders to fire and the fuel injection quantity comprises:

determining a requested engine power;
calculating an estimated NOx emission and an estimated smoke value;

determining the first and second thresholds;
determining available numbers of cylinders to fire;
determining acceptable cylinder operating points based on the estimated NOx emission, estimated smoke value, first and second thresholds, and available firing patterns; and

selecting a cylinder operating point and corresponding number of cylinders to fire and fuel injection quantity to meet the
requested engine power; and

operating the engine system with the selected number of engine cylinders to fire at the fuel injection quantity per selected
engine cylinder.

US Pat. No. 10,422,304

INLET DIFFUSERS FOR A TWO-STAGE ENGINE CHARGE AIR SYSTEM

Cummins Inc., Columbus, ...

9. An inlet diffuser for an aftercooler, comprising:a forward wall having a peripheral rim with a plurality of through holes for receiving fasteners to secure the inlet diffuser to a housing of the aftercooler;
an upper wall connected to the forward wall;
a lower wall connected to the forward wall;
a first side wall connected to the upper wall and the lower wall and having a first end disposed adjacent the peripheral rim and a second end disposed adjacent an inlet port of the inlet diffuser;
a second side wall connected to the upper wall and the lower wall and having a first end disposed adjacent the peripheral rim and a second end disposed adjacent the inlet port; and
a plurality of fins disposed within an interior volume of the inlet diffuser and extending between the upper wall and the lower wall, the plurality of fins collectively distributing air across an outlet opening of the inlet diffuser for delivery to the housing of the aftercooler;
wherein the plurality of fins includes a first fin which is substantially straight and slanted toward a first end of the inlet diffuser such that one end of the first fin adjacent the inlet port is farther from the first end of the inlet diffuser than another end of the first fin adjacent the forward wall;
wherein the plurality of fins includes a second fin which is substantially straight, partially disposed within the inlet port, and slanted toward a second end of the inlet diffuser such that one end of the second fin adjacent the inlet port is farther from the second end of the inlet diffuser than another end of the second fin adjacent the forward wall;
wherein the plurality of fins includes a third fin which is substantially straight and slanted toward the first end of the inlet diffuser such that one end of the third fin adjacent the inlet port is farther from the first end of the inlet diffuser than another end of the third fin adjacent the forward wall;
wherein the plurality of fins includes a fourth fin which is substantially straight and slanted toward the second end of the inlet diffuser such that one end of the fourth fin adjacent the inlet port is farther from the second end of the inlet diffuser than another end of the fourth fin adjacent the forward wall; and
wherein the plurality of fins includes a fifth fin which is curved in an elongated S-shape and slanted toward the second end of the inlet diffuser such that one end of the fifth fin adjacent the inlet port is farther from the second end of the inlet diffuser than another end of the fifth fin adjacent the forward wall, the one end being disposed within inlet port.

US Pat. No. 10,214,076

HVAC HEATING OF VEHICLES AND DURING ROAD EMERGENCIES

Cummins Inc., Columbus, ...

1. A controller structured to:determine a first time parameter corresponding to a vehicle proximate to a path location, wherein the vehicle comprises one or more vehicle components;
determine a second time parameter corresponding to a path schedule; determine a stop duration corresponding to the vehicle based, at least in part, on the first time parameter and the second time parameter, the stop duration being a time duration when the vehicle stops and an engine of the vehicle continues to run: and
adjust a thermal characteristic of an environment comfort system in response to movement of the one or more vehicle components between a current performance level and an adjusted performance level based on the stop duration determined.

US Pat. No. 10,030,593

SYSTEM AND METHOD FOR DETECTING AIR FUEL RATIO IMBALANCE

Cummins Inc., Columbus, ...

1. A method of detecting a fueling imbalance in an internal combustion engine including:providing a system comprising a control computer having non transitory instructions thereon, and at least one sensor for determining oxygen content of engine exhaust;
receiving, by the control computer, data from the at least one sensor regarding the oxygen content of engine exhaust for the engine operating at a cycle rate;
performing, by the control computer, frequency component analysis comprising a filtering operation on the received oxygen content data at one or more frequencies taken from the group consisting of the cycle rate of the engine and harmonics thereof to obtain filtered oxygen content data;
determining, by the control computer, at least one of:
1) one or more angles of the engine at which the filtered oxygen content data exhibits a first amplitude value characteristic relative to amplitude values at other angles; and
2) a shape analysis of the filtered oxygen content data obtained by sampling at pre-defined engine angles; and
identifying, by the control computer, a cylinder experiencing a fueling imbalance responsive to the determined at least one of one or more angle(s) and shape of the data.

US Pat. No. 9,835,248

SYSTEMS AND METHODS FOR DYNAMIC GEAR STATE AND VEHICLE SPEED MANAGEMENT

Cummins Inc., Columbus, ...

1. A method comprising:
determining a projected engine power requirement for an engine of a vehicle based on route information, the projected engine
power requirement comprising a base power and an incremental power, wherein the base power includes an engine power required
to maintain a vehicle speed under a baseline route condition and the incremental power includes an incremental engine power
required to maintain the vehicle speed under the route information differing from the baseline route condition, and wherein
the route information includes at least a portion ora route to be traveled by the vehicle;

determining a projected change of the vehicle speed based on the projected engine power requirement;
generating a gear request based on the projected engine power requirement and the projected change of vehicle speed, wherein
the gear request defines a gear state of a transmission connected to the engine such that at least one of the vehicle's drivability,
trip time and fuel economy are improved over at least a portion of the route;

communicating the gear request to the transmission;
generating a vehicle reference speed based on the projected engine power requirement and the projected change of vehicle speed
such that the vehicle reference speed may deviate from the vehicle speed; and

communicating the vehicle reference speed to an engine controller, wherein the engine controller operates upon the vehicle
reference speed to change the vehicle speed to be at or near the vehicle reference speed.

US Pat. No. 9,617,883

MULTI-LEG AFTERTREATMENT SYSTEM

Cummins Inc., Columbus, ...

1. An apparatus, comprising:
a controller configured to receive operating parameters from at least one sensor associated with an engine exhaust system,
the engine exhaust system including a diesel particulate filter (DPF) leg with a DPF and a first reductant catalyst and a
bypass leg that bypasses the DPF, the bypass leg including a second reductant catalyst, wherein the controller is configured
to:

receive and interpret a DPF delta pressure value, a flow balance correlation, a NOx input value, and an exhaust flow rate value associated with the engine exhaust system;

determine a flow imbalance value in response to the DPF delta pressure value, the flow balance correlation, and the exhaust
flow rate value;

determine a first reductant injection command and a second reductant injection command in response to the flow imbalance value
and the NOx input value; and

provide the first reductant injection command for injection of reductant upstream of the first reductant catalyst and provide
the second reductant command for injection of reductant upstream of the second reductant catalyst.

US Pat. No. 9,611,907

AFTERTREATMENT THERMAL MANAGEMENT VIA CLUTCH ASSEMBLY

CUMMINS INC., Columbus, ...

1. A vehicle system comprising:
an engine;
an aftertreatment system that receives exhaust gas from the engine;
a clutch assembly; and
a computing device configured to direct adjusting slippage of the clutch assembly based on a first temperature that is selected
from the group consisting of a temperature of the aftertreatment system and an expected temperature of the aftertreatment
system by directing the clutch assembly to:

provide a first level of slippage when the first temperature is above a first reference temperature and above a second reference
temperature;

provide a second level of slippage that is more than the first level of slippage when the first temperature is below the first
reference temperature and above the second reference temperature; and

provide a third level of slippage that is more than the second level of slippage when the first temperature is below the first
reference temperature and below the second reference temperature.

US Pat. No. 9,567,888

SYSTEMS AND METHODS TO REDUCE REDUCTANT CONSUMPTION IN EXHAUST AFTERTREAMENT SYSTEMS

Cummins Inc., Columbus, ...

1. An apparatus for reducing reductant consumption in an exhaust Aftertreatment system, comprising:
an exhaust system including a first SCR device and a second SCR device downstream of the first SCR device, at least one passive
storage device upstream of the first SCR device, and further comprising a first reductant injector upstream of the first SCR
device and a second reductant injector downstream of the first SCR device and upstream of the second SCR device;

a plurality of sensors operable to provide signals indicative of a first temperature of the first SCR device, a second temperature
of the second SCR device, and a NOx amount in an exhaust gas upstream of the first SCR device; and

a controller structured to control the first reductant injector to inject a first reductant amount in response to the first
SCR device operating in a first temperature range and the NOx amount in the exhaust gas upstream of the first SCR device,
and to control the second reductant injector to inject a second reductant amount in response to the NOx amount in the exhaust
gas upstream of the first SCR device and the first temperature of the first SCR device exceeding a selected ammonia oxidation
conversion threshold.

US Pat. No. 10,567,938

PLUGIN-POD FOR ELECTRONIC CONTROL UNIT

Cummins Inc., Columbus, ...

1. An aftertreatment control system comprising:an aftertreatment system comprising:
an exhaust passage defining an exhaust stream from an engine; an exhaust outlet disposed at an end of the exhaust passage and configured to output exhaust from the engine;
an exhaust catalyst assembly;
an engine control unit (ECU) comprising at least one first connector;
a plugin-pod including:
an enclosure configured to house processing circuitry therein;
an aftertreatment controller configured to control the aftertreatment system and to communicate with a printed circuit board; and
at least one second connector configured to connect to the ECU,
wherein the at least one first connector comprises a first plurality of pins extending vertically in a first direction of the at least one first connector and extending horizontally in a second direction perpendicular to the first direction of the at least one first connector, and
wherein the at least one second connector comprises a second plurality of pins extending vertically at least in a first direction of the at least one second connector.

US Pat. No. 10,329,998

METHOD OF SUPPORTING CHARGE AIR TUBES AND MANAGING THERMAL EXPANSION USING A WEAR SLEEVE

Cummins Inc., Columbus, ...

16. An assembly, comprising:a charge air tube configured to couple to a charge air output port of a turbocharger, the charge air tube configured to fluidly couple the turbocharger to a charge air cooler for transfer of fluid from the turbocharger to an intake port of an internal combustion engine; and
a charge air tube support assembly coupled to the charge air tube, the charge air tube support assembly configured to allow axial displacement of the charge air tube in response to thermal expansion of the charge air tube, the charge air tube support assembly comprising:
a wear sleeve coaxially positioned about the charge air tube, the wear sleeve formed from non-metallic material, and
a clamp coaxially positioned about the wear sleeve and configured to couple to the internal combustion engine;
wherein both the wear sleeve and the clamp contact the charge air tube.

US Pat. No. 10,035,511

METHOD AND SYSTEM FOR CONTROLLING OPERATION OF AN ENGINE POWERED DEVICE HAVING CYCLICAL DUTY CYCLES

Cummins Inc., Columbus, ...

1. An apparatus for controlling a powered device comprising:an engine;
a motor/generator;
an ECM operably coupled to the engine and the motor/generator and configured to:
determine whether the powered device is experiencing a cyclical load profile including high load conditions and low load conditions; and
respond to the powered device experiencing a cyclical load profile by applying a first power component to the powered device using the engine, the first power component corresponding to an average power required by the powered device during the cyclical load profile, and applying a second power component to the powered device using the motor/generator, a sum of the first power component and the second power component corresponding to a power required by the powered device during the high load conditions.

US Pat. No. 9,790,847

MULTI-STAGE TURBOCHARGER SYSTEM WITH OFF-ENGINE LOW PRESSURE STAGE

Cummins Inc., Columbus, ...

1. An internal combustion engine system, comprising:
an internal combustion engine including an engine block, at least one intake passage for receiving and delivering an air flow
to at least a portion of a plurality of cylinders of the engine block and at least one exhaust passage for receiving exhaust
gas from the at least the portion of the plurality of cylinders;

at least one high pressure turbocharger including a first high pressure turbine situated in the at least one exhaust passage
from the internal combustion engine, the at least one high pressure turbocharger further including a first high pressure compressor
operably connected with the first high pressure turbine with the first high pressure compressor situated in the at least one
intake passage, wherein the at least one high pressure turbocharger is mounted on-engine to the engine block;

a support structure;
at least two low pressure turbochargers with a first low pressure turbine and a second low pressure turbine each situated
in the at least one exhaust passage downstream of the first high pressure turbine, the at least two low pressure turbochargers
further including a first low pressure compressor operably connected to the first low pressure turbine with the first low
pressure compressor situated in the at least one intake passage upstream of the first high pressure compressor and a second
low pressure compressor operably connected to the second low pressure turbine with the second low pressure compressor situated
in the at least one intake passage upstream of the first high pressure compressor, wherein the at least two low pressure turbochargers
are mounted off-engine to the support structure so that a substantial portion of a static load of the at least two low pressure
turbochargers are not transferred to the engine block;

an aftercooler mounted on-engine in fluid communication with the at least one intake passage downstream of the first high
pressure compressor and upstream of an intake manifold of the internal combustion engine; and

at least one intercooler mounted off-engine to the support structure in fluid communication with the at least one intake passage
between the first and second low pressure compressors and the first high pressure compressor, wherein outlets of each of the
first and second low pressure compressors are connected by respective ones of first and second intake passage portions that
extend to the at least one intercooler.

US Pat. No. 9,739,246

FUEL INJECTOR WITH VARIABLE SPRAY

CUMMINS INC., Columbus, ...

1. A fuel injector for injecting high pressure fuel into a combustion chamber of an internal combustion engine, comprising:
an injector body containing an injector cavity and including a valve seat;
a nozzle valve element positioned in said injector cavity, said nozzle valve element including a valve surface positioned
adjacent said valve seat, a fuel delivery passage, and a plurality of spray holes fluidically connected to said fuel delivery
passage, said nozzle valve element operable to move between a closed position with said valve surface positioned in sealing
abutment with said valve seat to block fuel flow from said plurality of spray holes and an open position permitting flow from
said spray holes, said nozzle valve element operable to move outwardly away from said injector body when moving from said
closed position toward said open position, said open position including a first lift position defining a first fuel spray
pattern and a second lift position defining a second fuel spray pattern and having a greater lift than said first lift position,
and said spray holes emitting fuel in said first fuel spray pattern are said spray holes emitting fuel in said second fuel
spray pattern, and said nozzle valve element further comprising an annular groove formed adjacent said plurality of spray
holes to receive fuel from said plurality of spray holes when said nozzle valve element is in said closed position; and

a nozzle valve actuator assembly adapted to move said nozzle valve element toward said open position.

US Pat. No. 9,605,630

AIR INTAKE SYSTEM FOR INTERNAL COMBUSTION ENGINE

CUMMINS INC., Columbus, ...

1. An internal combustion engine, comprising:
an engine body including a plurality of left bank combustion chambers and a plurality of right bank combustion chambers;
a first intake manifold positioned on the left bank side and a second intake manifold positioned on the right bank side, each
of the first and second intake manifolds attached to the engine body and including a longitudinally extending airflow passage,
a body interior surface forming the longitudinally extending airflow passage, a plurality of inlet openings formed in the
body interior surface, a plurality of outlet openings, and a plurality of transverse airflow passages, each of the plurality
of transverse airflow passages extending between one of the plurality of inlet openings and one of the plurality of outlet
openings and including a longitudinal transverse passage axis, the longitudinal transverse passage axis curved to form a transverse
passage angle, the transverse airflow passage positioned to intersect the longitudinally extending airflow passage at a transverse
passage connection angle; and

a spacer portion positioned between the first intake manifold and the engine body and a spacer portion positioned between
the second intake manifold and the engine body, each spacer portion including a plurality of spacer passages positioned to
connect the plurality of transverse airflow passages to the engine body, and at least one fin portion extending from the spacer
portion into each transverse airflow passage, the at least one fin being shaped and sized so as to increase uniformity of
combustion between cylinders.