Idle revolution control device for internal combustion engine

Details Idle revolution control device for internal combustion engine Idle revolution control device for internal combustion engine

1987-05-08

1988-02-16

Dolinar, Andrew M.

Internal-combustion engines

Engine speed regulator

Idle speed control

123362, 123588, F02D 4106

Patent

active

047248084

ABSTRACT:
An idle revolution control device includes a water temperature sensor, a filter means and a control means which is constituted with a central processing unit and an interface connecting the water temperature sensor and the central processing unit. The filter means functions to provide a time constant which provide a high response speed for a temperature variation toward a high temperature side and a low response speed for a temperature variation toward a low temperature side and to pass an output signal of the water temperature sensor with such time constant a predetermined time after an engine starts.

REFERENCES:
patent: 3964457 (1976-06-01), Coscia
patent: 4191051 (1980-03-01), Kawata et al.
patent: 4381746 (1983-05-01), Miyagi et al.

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