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

1980-05-20

1983-02-01

Cox, Ronald B.

Internal-combustion engines

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

123435, F02P 504

Patent

active

043709630

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. The pulses integrated by an integrator are applied to a phase shifter to retard an ignition time. During the acceleration of the engine, a switch is opened in response to a pressure in an intake manifold in excess of a predetermined magnitude to cause an acceleration compensation circuit to decrease the charging time constant of the integrator resulting in an increase in retard of the ignition time point.

REFERENCES:
patent: 2407652 (1946-09-01), Costa
patent: 3789816 (1974-02-01), Taplin
patent: 4099493 (1978-07-01), Latsch
patent: 4106447 (1978-08-01), West
patent: 4111035 (1978-09-01), West
patent: 4133475 (1979-01-01), Harned

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