Ignition timing control system for internal combustion engines

Details Ignition timing control system for internal combustion engines Ignition timing control system for internal combustion engines

1979-05-23

1981-05-26

Myhre, Charles J.

Internal-combustion engines

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

123416, F02P 514

Patent

active

042691540

ABSTRACT:
An ignition timing control system including a counter into which is introduced a data generated from a memory and indicative of the proper ignition advance corresponding to the operating conditions of an engine and the decrement or increment of the count is made in synchronism with predetermined degrees of rotation of the engine to determine the desired ignition timing. When knock occurs n times per m times of engine explosion stroke, the knocking ratio n/m is computed and the content of the counter is corrected in response to the value of the knocking ratio to correct the ignition timing. The value of m for the knocking ratio n/m is variable in accordance with the engine operating conditions.

REFERENCES:
patent: 3871342 (1975-03-01), Fujinami et al.
patent: 4002155 (1977-01-01), Harned et al.
patent: 4061116 (1977-12-01), Saida et al.
patent: 4120272 (1978-10-01), Douaud et al.
patent: 4153020 (1979-05-01), King et al.

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