Device for speed control of a motor vehicle

Details Device for speed control of a motor vehicle Device for speed control of a motor vehicle

1984-12-24

1986-10-07

Love, John J.

Motor vehicles

With means responsive to speed of vehicle for maintaining...

Including fluid pressure actuated servomechanism

74866, 123352, 123399, B60K 3100

Patent

active

046154094

ABSTRACT:
A speed control device is provided for a motor vehicle allowing the driver to maintain the vehicle at constant speed while still remaining full control with his foot over the acceleration and deceleration of the vehicle. The path of a foot pedal is subdivided into two sections, where the first section corresponds to an acceleration of the motor vehicle and where the second section corresponds to a deceleration of the motor vehicle. A snap-in detention device is provided at the junction point of the two sections such that a foot can rest with a force slightly above the weight of the foot against the foot pedal while the speed of the motor vehicle is maintained constant. The foot pedal is connected to a piston, which in turn is supported by a relatively soft spring. The soft spring is supported by a second piston, which in turn is supported by a harder spring resting against a casing wall. The two pistons are connected to respective potentiometers via sliders and an acceleration control circuit compares the actual acceleration or deceleration with the settings of the potentiometers.

REFERENCES:
patent: 4072207 (1978-02-01), Kokubo
patent: 4082158 (1978-04-01), Carol, Jr. et al.
patent: 4508078 (1985-04-01), Takeuchi et al.
patent: 4538571 (1985-09-01), Buck et al.

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