Method and system for operation of a spark-ignited internal comb

Details Method and system for operation of a spark-ignited internal comb Method and system for operation of a spark-ignited internal comb

1981-03-18

1982-09-28

Nelli, Raymond A.

Internal-combustion engines

Combustion chamber means combined with air-fuel mixture...

123418, 123435, 123436, F02P 504, F02P 514, F02P 1102, F02B 300

Patent

active

043512810

ABSTRACT:
A method and device for adjusting the timing of an internal combustion engine in response to knocking are provided. In the method, knocking signals are generated when the engine knocks and the timing is too far advanced. First correctional signals are generated in response to the knocking signals and adjust at one speed range one of several control curves. Second correctional signals are generated from the first correctional signals to adjust the control curves at the remaining speed ranges. The timing of the engine is retarded in response to the adjusted control curves until the knocking disappears. The system for adjusting the ignition timing comprises a knocking sensor, an ignition computer storing several control curves and generating ignition timing correction signals, a counter for generating signals to the ignition computer to change the control curves, a logic unit for receiving signals from the ignition computer and the knocking sensor and generating correction signals, and an interconnection device for adjusting the timing of the internal combustion engine in response to the ignition correction signals.

REFERENCES:
patent: 4002155 (1977-01-01), Harned et al.
patent: 4099493 (1978-07-01), Lasdeh et al.
patent: 4116175 (1978-09-01), Sand
patent: 4120272 (1977-10-01), Douaud et al.
patent: 4130095 (1978-12-01), Bowler et al.
patent: 4207847 (1980-06-01), Haddori et al.
patent: 4240388 (1980-12-01), Omori et al.
patent: 4269154 (1981-05-01), Iwada et al.

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