Engine and exhaust heating for hybrid vehicle

Details Engine and exhaust heating for hybrid vehicle Engine and exhaust heating for hybrid vehicle

2011-08-16

2011-08-16

Huynh, Hai H (Department: 3747)

Internal-combustion engines

Spark ignition timing control

Electronic control

C123S339110

Reexamination Certificate

active

07997252

ABSTRACT:
A method for controlling a vehicle engine having a plurality of cylinders and an electric motor configured to rotate the engine is provided. The method includes, during engine idling, advancing spark timing of at least one cylinder to substantially before a peak torque timing. The method further includes adjusting motor torque output of the electric motor to maintain engine idle speed.

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