Pedal module with variable hysteresis

Details Pedal module with variable hysteresis Pedal module with variable hysteresis

1998-05-19

2000-08-08

Oberleitner, Robert J.

Spring devices

Vehicle

Lever and nontorsion spring

267216, 74567, 74569, B60G 1114

Patent

active

060989718

ABSTRACT:
A variable hysteresis module for use with an accelerator pedal with an electronic throttle control system for vehicles and the like includes a follower moveable along a back plate and urged by return springs against a cam actuator. The actuator acts against an angled side of the follower that resolves the pedal force on the actuator into a parallel component opposing the spring force and a normal component urging the follower against the back plate to develop friction that produces hysteresis. The hysteresis varies with the force of the return springs and so generally increases as the engine throttle is opened and decreases as the engine throttle is returned closed. If the spring force is reduced, the friction force is proportionally reduced. Other variations are also disclosed.

REFERENCES:
patent: 212021 (1879-02-01), Lowe
patent: 1818414 (1931-08-01), Marsey
patent: 4944269 (1990-07-01), Imoehl
patent: 4958607 (1990-09-01), Lundberg
patent: 5239891 (1993-08-01), Stocker
patent: 5241936 (1993-09-01), Byler et al.

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