Ignition timing control system for internal combustion engine

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

1980-05-16

1983-03-29

Feinberg, Craig R.

Internal-combustion engines

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

123424, F02P 514

Patent

active

043779999

ABSTRACT:
An acceleration sensor senses mechanical noise components and a knock signal originating from an internal combination engine. The knock signal is separated from the attenuated noise components and compared with a DC voltage due to the latter to form pulses. After having been integrated the pulses are applied to a phase shifter through a phase shift disabling circuit resulting in retardation of an ignition time in the normal mode of operation of the engine. When the engine is operated in the low speed mode or started, the phase shift disabling circuit applies a null input to the phase shifter in place of the integrated pulses, to ignite the engine at a reference ignition time.

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patent: 4111035 (1978-09-01), West et al.
patent: 4116173 (1978-09-01), McDougal et al.
patent: 4138976 (1979-02-01), Crall
patent: 4153020 (1979-05-01), King et al.
patent: 4211194 (1980-07-01), Hattori et al.
patent: 4282841 (1981-08-01), Takagi et al.

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