Adaptive MBT spark advance for conventional powertrains

Details Adaptive MBT spark advance for conventional powertrains Adaptive MBT spark advance for conventional powertrains

2007-06-06

2008-12-30

Kwon, John T (Department: 3747)

Internal-combustion engines

Spark ignition timing control

C123S406230, C123S406330

Reexamination Certificate

active

07469678

ABSTRACT:
An engine control system to adaptively adjust the spark timing values in spark timing tables to achieve a mean best torque. The engine control system utilizes a spark timing module that contains spark timing values as a function of one or more operating conditions of an engine. An ignition module can command spark timing based on the timing values in the spark timing module. The ignition module can adjust the spark timing during engine operation within a predetermined operating window. The spark timing values in the spark timing module can be changed based on changes in engine operation as a result of the adjustment to the spark timing. The adjusting of the spark timing and the replacing of the spark timing values in the spark timing module can allow the spark timing in the spark timing module to be optimized.

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patent: 5297048 (1994-03-01), Gauer
patent: 5924404 (1999-07-01), Ruman et al.
patent: 6339743 (2002-01-01), Young et al.

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