Accelerator pedal position sensor

Details Accelerator pedal position sensor Accelerator pedal position sensor

1989-03-20

1990-04-10

Argenbright, Tony M.

Internal-combustion engines

Engine speed regulator

Open loop condition responsive

731181, 74513, 123494, 338153, F02D 1110, H01C 1000

Patent

active

049150758

ABSTRACT:
Pedal mounted sensors are useful in motor vehicles for delivering an electrical signal correlative to the position of the accelerator pedal. The electrical signal is then used by an engine controller to regulate the amount of fuel supplied to the engine. Some pedal mounted sensors deliver analog signals which are subject to fault conditions which an engine controller can not distinguish from valid operating conditions. Remotely mounted sensors are difficult to install and repair. The subject invention is directed to pedal mounted sensors which have a potentiometer and circuit board hermetically sealed and mounted on a pedal for delivering pulse-width-modulated signal having a duty factor responsive to the pedal position.

REFERENCES:
patent: 4519360 (1985-05-01), Murakami
patent: 4528590 (1985-07-01), Bisacquino et al.
patent: 4537168 (1985-08-01), Durisin
patent: 4603675 (1986-08-01), Junginger et al.
patent: 4612615 (1986-09-01), Murakami
patent: 4718380 (1988-01-01), Katayose et al.
patent: 4772829 (1988-09-01), Pickering et al.
News Release titled "Williams WM-516 Electronic Accelerator Designed for Electronic Fuel Control" dated Dec. 5, 1986.

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