Valve characteristic control device for internal combustion...

Details Valve characteristic control device for internal combustion... Valve characteristic control device for internal combustion...

2005-12-07

2008-10-28

Chang, Ching (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090310, C123S346000

Reexamination Certificate

active

07441522

ABSTRACT:
A lift time area is calculated based on an actual valve working angle of an intake valve and an engine rotational speed. Then, a control gain of a feedback control is set based on the lift time area.

REFERENCES:
patent: 6999864 (2006-02-01), Iizuka et al.
patent: 7162356 (2007-01-01), Fuwa et al.
patent: 2001-263015 (2001-09-01), None

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