Auxiliary parking brake system

Details Auxiliary parking brake system Auxiliary parking brake system

1990-03-16

1991-08-06

Lorence, Richard

192 clutches and power-stop control

Vortex-flow drive and clutch

With brake

192 133, 192 141, 303 2, 303 13, 188166F, B60K 4120, B60T 1300, B60T 1516

Patent

active

050369610

ABSTRACT:
A fluid pressure braking system for a vehicle having service brakes and spring activated parking brakes includes electropneumatic activators for effecting and holding a limited service brake application while the driver leaves the vehicle to make a route pick-up. Accordingly, the spring brakes are not used during route pick-ups, thereby increasing the life of the spring actuator since it is not repeatedly cycled. An electropneumatic interlock automatically effects a parking brake application if the vehicle ignition is switched off while an electropneumatic service actuation is effected.

REFERENCES:
patent: 2292105 (1942-08-01), Davis
patent: 3572847 (1971-03-01), Luft
patent: 3582150 (1971-06-01), Williams et al.
patent: 3842950 (1974-10-01), Fontaine
patent: 4673222 (1987-06-01), Knight

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