Ignition timing control apparatus with knock sensor

Details Ignition timing control apparatus with knock sensor Ignition timing control apparatus with knock sensor

1982-07-14

1984-05-01

Dolinar, Andrew M.

Internal-combustion engines

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

123422, F02P 514

Patent

active

044454791

ABSTRACT:
In an ignition timing control apparatus for controlling the ignition timing of each cylinder in order to reduce knock generation in a multi-cylinder engine, a lag-angle correction is made for the ignition timing of a cylinder in which a knock is generated and at the same time, a slight lag-angle correction is made for the ignition timing of the other cylinders in which no knock is generated. When the operating condition of engine is rapidly changed for example, under the condition in which knock is liable to occur in all cylinders as at rapid acceleration time, a lag-angle correction is made by the same amount as in the knock generating cylinder, for the ignition timing of cylinders in which no knock is generated. When no knock is generated for a predetermined time, a lead-angle correction is made for the ignition timing subjected to the lag-angle correction of each cylinder at intervals of the predetermined time.

REFERENCES:
patent: 4116173 (1978-09-01), McDougal et al.
patent: 4282841 (1981-08-01), Takagi et al.
patent: 4357918 (1982-11-01), Asano
patent: 4366792 (1983-01-01), Deleris
patent: 4376429 (1983-03-01), Youngblood

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