초록 ▼

Periodic shutdown of the internal combustion engine (12) during operation of a hybrid electric vehicle (HEV) is achieved by shutdown of a vapor management valve (VMV) of the engine evaporative emission control system and an EGR valve (150) of the tailpipe emission control system at the time an engin

Periodic shutdown of the internal combustion engine (12) during operation of a hybrid electric vehicle (HEV) is achieved by shutdown of a vapor management valve (VMV) of the engine evaporative emission control system and an EGR valve (150) of the tailpipe emission control system at the time an engine shutdown command is provided to a controlled engine shutdown routine that, after closing of the VMV and EGR valves, then commands disabling of the engine fuel injectors (160) in a manner to stop engine operation.

대표청구항 ▼

1. A method of controlling an internal combustion engine having a plurality of fuel injectors, an evaporative emission control system including a vapor management valve between a fuel tank and an engine intake manifold, and an EGR valve between an engine exhaust manifold and the intake manifold, com

1. A method of controlling an internal combustion engine having a plurality of fuel injectors, an evaporative emission control system including a vapor management valve between a fuel tank and an engine intake manifold, and an EGR valve between an engine exhaust manifold and the intake manifold, comprising closing said vapor management valve and said EGR valve prior to disabling of said fuel injectors as part of an engine shutdown routine in response to an engine shutdown command and, after said closing, said routine commanding disabling of said fuel injectors in a manner to stop engine operation, thereby eliminating contributions of fuel to said intake manifold from said vapor management valve and said EGR valve prior to stopping of said engine.