US Patent No. 10,273,894

INTERNAL COMBUSTION ENGINE CONTROL FOR IMPROVED FUEL EFFICIENCY


Patent No. 10,273,894
Issue Date April 30, 2019
Title Internal Combustion Engine Control For Improved Fuel Efficiency
Inventorship Adya S. Tripathi, San Jose, CA (US)
Assignee Tula Technology, Inc., San Jose, CA (US)

Claim of US Patent No. 10,273,894

1. A sigma delta converter arranged to receive an input signal indicative of a desired output and to output a digital output signal reflective of the input signal, the digital output signal being suitable for use in a control of a power plant, the sigma delta converter comprising:an integrator block that includes at least one integrator, wherein the integrator block is arranged to receive one or more inputs that are collectively reflective of the input signal and a feedback signal that is based on the digital output signal;
a comparator that receives an integrated signal from the integrator block and outputs the digital output signal, the digital output signal being reflective of the input signal, wherein a timing of an output of the comparator is based on a clock signal; and
a variable clock that generates the clock signal, wherein the variable clock is configured to receive an indication of a rotational speed of the power plant and vary the clock signal as a function of the rotational speed of the power plant.