Device for preventing vehicle wheels from locking

Details Device for preventing vehicle wheels from locking Device for preventing vehicle wheels from locking

1983-02-02

1985-03-19

Reger, Duane A.

Fluid-pressure and analogous brake systems

Speed-controlled

Having a valve system responsive to a wheel lock signal

188181C, B60T 804

Patent

active

045055203

ABSTRACT:
In a device for preventing a wheel lock condition of a vehicle, a fluid passage switching valve is inserted in a rear wheel brake fluid pressure transmission system. The fluid pressure switching valve is closed during brake application in so far as it is within a braking force range in which a rear wheel braking force must be lower than a front wheel braking force. The speeds of revolution or deceleration of the front and rear wheels are compared by comparison means. When the comparison means detects that the deceleration of the front wheel becomes greater than the deceleration state of the rear wheel by a predetermined value, the fluid passage switching valve opens for a given length of time to allow the rear wheel brake fluid pressure to increase.

REFERENCES:
patent: 3066988 (1962-12-01), McRae
patent: 3282232 (1966-11-01), Shepherd
patent: 3764182 (1973-10-01), Andreyko et al.
patent: 3980344 (1976-09-01), Burckhardt
patent: 4275934 (1981-06-01), MacDonald

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