Control device for engine valve and control system for engine

Details Control device for engine valve and control system for engine Control device for engine valve and control system for engine

2008-07-15

2008-07-15

Chang, Ching (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090150, C123S347000, C074S160000

Reexamination Certificate

active

11712518

ABSTRACT:
A rotational phase difference of a camshaft relative to a crankshaft in a variable valve timing mechanism is controlled by an operation of an oil control valve. That is, in the oil control valve, there is outputted an operational signal which is defined by adding a feedback correction amount corresponding to a difference between an actual value and a target value of the rotational phase difference, to a holding learning value as the operational signal for holding the rotational phase difference. The holding learning value is altered only by a specified value on condition that the operational signal for holding the rotational phase difference is assumed to change.

REFERENCES:
patent: 5562071 (1996-10-01), Urushihata et al.
patent: 5957095 (1999-09-01), Kako
patent: 11-062643 (1999-03-01), None

Affiliated with

Also associated with

Rating

Control device for engine valve and control system for engine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Control device for engine valve and control system for engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control device for engine valve and control system for engine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3953929