Control device for variable valve timing apparatus

Details Control device for variable valve timing apparatus Control device for variable valve timing apparatus

2009-04-06

2011-11-08

Kwon, John (Department: 3747)

Internal-combustion engines

Engine speed regulator

Responsive to deceleration mode

C123S090150

Reexamination Certificate

active

08051831

ABSTRACT:
A control device for a variable valve timing apparatus that changes valve timing of at least one of an intake valve and an exhaust valve of an internal combustion engine includes an actual valve timing computing unit and a valve timing controlling unit. The actual valve timing computing unit computes actual valve timing. The valve timing controlling unit controls the variable valve timing apparatus to maintain present valve timing during starting of the internal combustion engine before the actual valve timing computing unit becomes capable of computing the actual valve timing. The valve timing controlling unit controls the variable valve timing apparatus such that the actual valve timing becomes target valve timing during the starting of the internal combustion engine after the actual valve timing computing unit becomes capable of computing the actual valve timing.

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