Electromagnetically driven valve control system for internal com

Details Electromagnetically driven valve control system for internal com Electromagnetically driven valve control system for internal com

1995-12-15

1997-01-28

Lo, Weilun

Internal-combustion engines

Poppet valve operating mechanism

Electrical system

1231793, 123198D, F01L 904

Patent

active

055969569

ABSTRACT:
An electromagnetically driven valve control system for an internal combustion engine having at least one intake valve and at least one exhaust valve, and a starter for starting cranking of the engine. A CPU controls an energization time/timing control circuit section to electromagnetically drive at least one of the at least one intake valve and the at least one exhaust valve. The CPU detects a starting signal indicative of starting of the cranking of the engine, and a timer measures a time period elapsed after the starting signal is detected. An inhibiting time period is set, over which the operation of the starter means is inhibited, and the at least one of the at least one intake valve and the at least one exhaust valve is driven in a valve closing direction when the starting signal is detected. The operation of the starter is permitted when the time period elapsed after the starting signal is detected exceeds the inhibiting time period.

REFERENCES:
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patent: 5219397 (1993-06-01), Jones
patent: 5222714 (1993-06-01), Morinigo et al.
patent: 5251590 (1993-10-01), Faletti et al.
patent: 5337713 (1994-08-01), Mill

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