Pedal return device having improved hysteresis characteristics

Details Pedal return device having improved hysteresis characteristics Pedal return device having improved hysteresis characteristics

1993-11-03

1996-06-25

Graham, Matthew C.

Spring devices

Torsion

Coil

74513, 267215, F02D 1102

Patent

active

055292968

ABSTRACT:
A pedal return device is provided for controlling operation of a pedal member. In particular, the pedal return device imparts a resistive force which resists movement of the pedal member. In the case of an automobile accelerator pedal, this feature allows the driver to more easily maintain a given level of pedal actuation. However, the resistive force is made dependent on whether the pedal member is actually being depressed. Accordingly, once a force applied to the pedal member is removed, the resistive force is correspondingly and assuredly eliminated to permit the pedal member to be reliably returned to an initial rest position by a restoration force generating device provided.

REFERENCES:
patent: 1619035 (1927-03-01), Rafter
patent: 1774094 (1930-08-01), Gulick
patent: 1834054 (1931-12-01), Fremaux
patent: 2075991 (1937-04-01), Kessler
patent: 4576672 (1986-03-01), Griffin et al.
patent: 4579017 (1986-04-01), Nusser
patent: 4582653 (1986-04-01), Blanchard et al.
patent: 4869220 (1989-09-01), Imochi
patent: 5133225 (1992-07-01), Lundberg et al.

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