Engine knocking control unit

Details Engine knocking control unit Engine knocking control unit

1988-04-19

1989-08-15

Dolinar, Andrew M.

Internal-combustion engines

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

123421, 123435, 60602, F02D 4300

Patent

active

048564818

ABSTRACT:
A unit for suppressing knocking in a gasoline engine includes a knocking sensor for sensing knocking and outputting a signal indicative thereof, engine control means for controlling the operating condition of the engine, control variable correcting means responsive to the output from the knocking sensor for correcting a control variable in the engine control means in such a manner that knocking will be suppressed, an engine temperature sensor for sensing engine temperature and determining whether the engine is cold or hot, and correction amount modifying means which, if the engine is cold, modifies the extent to which the control variable is corrected to suppress knocking in such a manner that the amount of correction is made smaller than that which prevails when the engine is hot.

REFERENCES:
patent: 4197711 (1980-04-01), Fuhrmann et al.
patent: 4387571 (1983-06-01), Katsumata et al.
patent: 4433654 (1984-02-01), Yokooku
patent: 4458646 (1984-07-01), Suzuki et al.
patent: 4485626 (1984-12-01), Moriguchi et al.
patent: 4509331 (1985-04-01), Hirabayashi
patent: 4612900 (1986-09-01), Iwata et al.

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