US Patent No. 9,739,212

METHOD AND APPARATUS FOR DETERMINING OPTIMUM SKIP FIRE FIRING PROFILE WITH ADJUSTMENTS FOR AMBIENT TEMPERATURE


Patent No. 9,739,212
Issue Date August 22, 2017
Title Method And Apparatus For Determining Optimum Skip Fire Firing Profile With Adjustments For Ambient Temperature
Inventorship Vijay Srinivasan, Farmington Hills, MI (US)
Louis J. Serrano, Los Gatos, CA (US)
Assignee Tula Technology, Inc., San Jose, CA (US)

Claim of US Patent No. 9,739,212

1. A skip fire engine controller comprising:
a skip fire profile module arranged to determine an operational firing fraction and associated cylinder load for delivering
a desired engine output, wherein the operational firing fraction is selected at least in part based on at least one temperature
affecting a coupling of noise and vibration to a vehicle cabin at the selected operational firing fraction; and

a firing controller arranged to direct firings in a skip fire manner that delivers the selected operational firing fraction.