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

1982-09-29

1985-04-23

Argenbright, Tony M.

Internal-combustion engines

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

73 35, F02P 504

Patent

active

045123101

ABSTRACT:
In an ignition timing control system, a knocking detector detects a knocking of the internal combustion engine. The ignition timing control circuit includes a cylinder switching signal generator circuit for generating a cylinder switching signal in synchronism with the rotation of the engine, a plurality of integrators each corresponding to each or a plurality of cylinders for producing a reference signal in response to the noise signal produced from the knocking detector, a plurality of analog switches for changing one of the integrators into ON-state in response to the cylinder switch signal, and a comparator having an input terminal supplied with the detection signal of the knocking detector and the other input terminal supplied with an integration output signal of the integrators, said comparator producing a knocking signal which retards the ignition timing of the engine when the detection signal is larger in amplitude than the integration signal.

REFERENCES:
patent: 4111035 (1978-09-01), West et al.
patent: 4153020 (1979-05-01), King et al.
patent: 4256072 (1981-03-01), Nakatomi et al.
patent: 4282841 (1981-08-01), Takagi et al.
patent: 4354378 (1982-10-01), Oshiage et al.
patent: 4355534 (1982-10-01), Roger

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