Method of operating a throttle-valve adjustment device

Details Method of operating a throttle-valve adjustment device Method of operating a throttle-valve adjustment device

1994-10-21

1995-12-19

Argenbright, Tony M.

Internal-combustion engines

Engine speed regulator

Open loop condition responsive

731181, 123198D, F02D 302, B60K 2604

Patent

active

054760780

ABSTRACT:
A test routine for a throttle-valve displacement device is accomplished by use of a potentiometer (6) associated with a setting drive (3) and a potentiometer (5) associated with the throttle valve (1) to determine if the valve is operating properly. If it is found from a comparison of the potentiometer signals that the throttle valve (1) is connected to the gas pedal (2), then the setting drive is moved at specific time intervals at least once in closing direction and then back into the starting, position, and it is tested whether the throttle valve (1) follows the setting device. If so, then there is an erroneous indication of one of the two potentiometers and safety measures can be taken.

REFERENCES:
patent: 4722313 (1988-02-01), Kohler et al.
patent: 4920939 (1990-05-01), Gale
patent: 5065721 (1991-11-01), Wiggins et al.
patent: 5213078 (1993-05-01), Kolberg et al.
patent: 5321980 (1994-06-01), Hering et al.

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