Ignition timing controller for internal combustion engine

Details Ignition timing controller for internal combustion engine Ignition timing controller for internal combustion engine

1995-07-10

1997-10-28

Marmor, Charles A.

Interrelated power delivery controls, including engine control

Transmission control

Engine controlled by transmission

477110, 123419, F02P 500

Patent

active

056812396

ABSTRACT:
In an ignition timing controller used in conjunction with an internal combustion engine of a vehicle provided with a mechanism for igniting fuel, the running condition of the engine is detected and the optimum ignition timing is determined based on the running condition. It is determined also whether or not the vehicle is accelerating, and the variation rate of engine speed during acceleration is detected. When the variation rate is a positive value which is equal to or greater than a predetermined value, the ignition timing is retarded by a predetermined amount relative to the optimum ignition timing. When the variation rate is less than this predetermined value, the correction amount is set to zero so that the timing is not retarded. In this way, forward/backward oscillation of the vehicle based on rotational vibration of the crankshaft during acceleration from coasting, is suppressed.

REFERENCES:
patent: 4022170 (1977-05-01), Crall et al.
patent: 4852537 (1989-08-01), Nagano et al.
patent: 4870935 (1989-10-01), Araki
patent: 4924832 (1990-05-01), Abe
patent: 5070841 (1991-12-01), Fujimoto et al.
patent: 5094209 (1992-03-01), Kishida

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