Control apparatus for variable valve actuation system

Details Control apparatus for variable valve actuation system Control apparatus for variable valve actuation system

2006-02-21

2006-02-21

Denion, Thomas (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090160, C123S090170

Reexamination Certificate

active

07000578

ABSTRACT:
An ECU calculates a target working angle r, and determines a difference between the target working angle r and the previous value r′ of target working angle as a change rate v to be feedforward controlled. Further, the ECU determines a deviation to be corrected by feedback control from the target working angle r and an actual value that is input from a sensor as a hypothetical rate u. The change rate v and the hypothetical rate u are added together, and a control amount to be output, for example, a voltage E is determined by referring to a three-dimensional map M3from the added set change rate (v+u) and the input target working angle r.

REFERENCES:
patent: 2002/0166526 (2002-11-01), Takahashi et al.
patent: 10-184429 (1998-07-01), None
patent: 2002-138865 (2002-05-01), None
patent: 2002-364434 (2002-12-01), None

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