Compression ignition engines and methods for operating the same under cold start fast idle conditions

V Raman, Y Viollet, J Chang - US Patent 11,391,230, 2022 - Google Patents
A method for operating an internal combustion engine includes moving a piston downward
from a top dead center position to a bottom dead center position expanding a combustion …

Systems and methods for skip-fire operation control

JS Kolhouse, RA Phillips - US Patent 11,859,567, 2024 - Google Patents
A method of controlling a skip-fire cylinder deactivation system of an engine system is
provided. The method includes a controller deactivating a cylinder of the engine system to …

Early direct fuel injection for internal combustion engines

AW Phillips, JF Fuschetto - US Patent 11,333,099, 2022 - Google Patents
A skip fire engine controller is disclosed that commands an early direct-injection of fuel
during a skipped working cycle in which a cylinder is not exhausted. With early direct …