Throttle valve control apparatus for an automobile

Details Throttle valve control apparatus for an automobile Throttle valve control apparatus for an automobile

1987-09-22

1988-09-06

Cox, Ronald B.

Internal-combustion engines

Engine speed regulator

Open loop condition responsive

123361, F02D 3100

Patent

active

047684836

ABSTRACT:
A throttle valve control apparatus with two electronically-controlled actuators is disclosed. A first electronically-controlled actuator has a first drive motor which opens and closes the throttle valve through gears. A second electronically-controlled actuator has a second drive motor which opens and closes the throttle valve by rotating the first drive motor about the axis of the shaft of the throttle valve. The throttle valve can be independently rotated by either of the actuators. A controller computes the optimal degree of opening of the throttle valve based on the operating state of the engine of the vehicle, the running condition of the vehicle, and the amount by which the accelerator pedal is depressed. The controller then controls the actuators so as to open the throttle valve by the optimal degree of opening.

REFERENCES:
patent: 4304202 (1981-12-01), Schofield
patent: 4409940 (1983-10-01), Gaus
patent: 4601271 (1986-07-01), Ejiri
patent: 4703823 (1987-11-01), Yogo
patent: 4724811 (1988-02-01), Maisch
"Ward's Engine Update", Jun. 1, 1985, p. 5.

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