Controller for controlling opening and closing of an intake...

Details Controller for controlling opening and closing of an intake... Controller for controlling opening and closing of an intake...

2006-03-14

2006-03-14

Denion, Thomas (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

Electrical system

C251S129010

Reexamination Certificate

active

07011053

ABSTRACT:
A controller supplies a predetermined constant current as a drive current to an electromagnetic actuator in response to detection of a non-normal state including an abnormal signal system and an abnormal engine start state, and a force that keeps an intake valve of an engine is appropriately controlled with this drive current. As a result, engine start characteristics are improved and an engine operation is maintained even when the signal system is abnormal.

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