Electronic throttle valve opening control method and system ther

Details Electronic throttle valve opening control method and system ther Electronic throttle valve opening control method and system ther

1989-11-01

1991-01-08

Nelli, Raymond A.

Internal-combustion engines

Engine speed regulator

Open loop condition responsive

F02D 700

Patent

active

049827103

ABSTRACT:
An electronic throttle valve opening control system provides an actuating D.C. motor for opening or closing the throttle valve and a control circuit for controlling the D.C. motor current in response to the difference between the detected real throttle valve opening and a target value of the throttle valve opening. In addition to the above difference signal, the D.C. motor is controlled by a first correction quantity signal in accordance with variation of the detected throttle valve opening and a second correction quantity signal in accordance with the friction force existing in a valve opening control mechanism.

REFERENCES:
patent: 4819597 (1989-04-01), Gale et al.
patent: 4862854 (1989-09-01), Oda et al.
patent: 4892071 (1980-01-01), Asayama
patent: 4899709 (1990-02-01), Aufmkolk
patent: 4909213 (1990-03-01), Mezger et al.

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