US Patent No. 10,927,780

ADAPTATION OF SKIP FIRE CALIBRATION TO VEHICLE WEIGHT


Patent No. 10,927,780
Issue Date February 23, 2021
Title Adaptation Of Skip Fire Calibration To Vehicle Weight
Inventorship Vijay Srinivasan, Farmington Hills, MI (US)
Assignee Tula Technology, Inc., San Jose, CA (US) Cummins Inc., Columbus, IN (US)

Claim of US Patent No. 10,927,780

1. A platform powered by a skip fire controlled internal combustion engine having a plurality of working chambers that provide motive power capable of moving the platform comprising:a sensor or model that outputs a signal indicative of a weight of the platform; and
an engine controller that determines a skip fire profile which includes an operational firing fraction and a working chamber load, wherein engine operation at the skip fire profile produces an acceptable level of noise, vibration, and harshness and results in combustion conditions in fired working chambers closer to an optimal combustion condition as compared to any other possible skip fire profile, wherein the skip firing profile is adjusted based at least in part on the signal indicative of the platform weight.