Engine control system

Details Engine control system Engine control system

1986-07-31

1987-09-15

Argenbright, Tony M.

Internal-combustion engines

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

36443108, F02P 515, F02P 1100

Patent

active

046932216

ABSTRACT:
In an internal combustion engine, a spark timing control device adjusts spark timing in accordance with detected value of vibration in combustion pressure. A sensor detects vibration in combustion pressure within the engine. The detected combustion pressure vibration is converted into a correlation value relating to combustion condition of the engine. The current correlation value is compared to a reference value corresponding to the correlation value which was obtained during idling operation of the engine. This comparison is to determine whether or not a malfunction of the spark timing control device occurs. The spark timing is controlled in accordance with the detected combustion pressure vibration and also with the determination as to whether or not a malfunction of the spark timing control device occurs.

REFERENCES:
patent: 4131097 (1978-12-01), Sawada et al.
patent: 4153019 (1979-05-01), Laubenstein et al.
patent: 4320729 (1982-03-01), Sawada et al.
patent: 4331117 (1982-05-01), Ginsburgh
patent: 4356551 (1982-10-01), Iwase et al.
patent: 4357919 (1982-11-01), Hattori et al.
patent: 4462362 (1984-07-01), Bonitz et al.

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