Ignition timing control unit for internal combustion engine

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

1989-04-13

1990-09-04

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Fuel injection system

123436, F02P 504

Patent

active

049535323

ABSTRACT:
An ignition timing control unit for an internal combustion engine is constructed such that a predetermined amount of correction for the ignition timing of the engine is set beforehand in accordance with directions of change in the number of revolutions of the engine so that, during a predetermined period of time after the detection of an operation to accelerate the engine, the predetermined amount of correction for the ignition timing is added to standard ignition timing of the engine to suppress the change in the number of revolutions of the engine. The ignition timing control unit is provided with a revolution changing rate detector for detecting the rate of change in the number of revolutions of the engine, and the predetermined amount of correction for the ignition timing is controlled in accordance with the sign and magnitude of the rate of change in the number of revolutions of the engine, thereby preventing the change in the number of revolutions of the engine (or irregular awkward operation) when the load is changed suddenly.

REFERENCES:
patent: 4575800 (1986-03-01), Kittelson
patent: 4586473 (1986-05-01), Nguyen
patent: 4596217 (1986-06-01), Bonitz et al.
patent: 4799469 (1989-01-01), Nagano et al.
patent: 4819171 (1989-04-01), Morita
patent: 4838227 (1989-06-01), Abromeit
patent: 4852537 (1989-08-01), Nagano et al.

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