Control system and method for internal combustion engine...

Details Control system and method for internal combustion engine... Control system and method for internal combustion engine...

2005-02-01

2005-02-01

Argenbright, Tony M. (Department: 3747)

Internal-combustion engines

Spark ignition timing control

Electronic control

C123S090150

Reexamination Certificate

active

06848422

ABSTRACT:
An engine is provided with a variable valve mechanism capable of changing a degree of an operating angle and a phase of a valve-open period of an intake valve. A controller selectively executes at least one of a plurality of knock controls including a phase adjustment of the valve-open period of the intake valve when a knocking is detected by a knock sensor. When the operating angle of the intake valve is smaller than 180 degrees, a knock control is selected and executed such that a valve-open timing IVO of the intake valve does not exceed a predetermined timing (TDC+α) retarded from a top dead center TDC by a predetermined angle α. Specifically, for example, when the operating angle is smaller than 180 degrees and the valve-open timing IVO of the intake valve is after the top dead center TDC, the valve-open timing IVO is advanced.

REFERENCES:
patent: 6769404 (2004-08-01), Aoyama et al.
patent: A 6-129271 (1994-05-01), None
patent: A 11-190236 (1999-07-01), None
patent: A 11-324762 (1999-11-01), None

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