Internal-combustion engines – Spark ignition timing control – Electronic control
Patent
1998-07-01
2000-03-07
Kwon, John
Internal-combustion engines
Spark ignition timing control
Electronic control
123617, 123609, F02P 500
Patent
active
060326492
ABSTRACT:
An engine control system in which a rotary body rotates in association with a crankshaft of an engine and has portions to be detected every predetermined angle and at least one of the portions to be detected is missing, and a pickup is arranged near an outer periphery of the rotary body and generates a pulse each time the portion to be detected passes. In the case where a reference time point to start a measurement of a time until a control start time point to start a predetermined control of the engine is a rotational angle time point of the crankshaft when no pulse is generated from the pickup due to a missing portion to be detected, a timer is allowed to measure the time from a generation time point of the pulse generated from the pickup just before the non-pulse generation period of time during which no pulse is generated until the control start time point.
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Keihin Corporation
Kwon John
LandOfFree
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