US Patent No. 9,120,478

TRANSITORY TORQUE MODIFICATIONS USING SKIP FIRE CONTROL


Patent No. 9,120,478
Issue Date September 01, 2015
Title Transitory Torque Modifications Using Skip Fire Control
Inventorship Steven E. Carlson, Oakland, CA (US)
Xin Yuan, Palo Alto, CA (US)
Joshua P. Switkes, Menlo Park, CA (US)
Li-Chun Chien, Milpitas, CA (US)
Assignee Tula Technology, Inc., San Jose, CA (US)

Claim of US Patent No. 9,120,478

1. An engine controller arranged to:
direct operation of an engine to deliver a requested engine output;
direct skip fire operation of the engine during a transmission shift event to deliver a transitory engine output that is significantly
less than the requested engine output, wherein the difference between the transitory engine output and the requested engine
output is provided in significant part by a difference in a percentage of working cycles that are fired during the transmission
shift as compared to the percentage of working cycles that are fired immediately prior to the transmission shift; and

restore the engine output to the requested engine output after the transmission shift event is completed.