Braking system for a trailer vehicle

Details Braking system for a trailer vehicle Braking system for a trailer vehicle

2008-05-13

2008-05-13

King, Bradley (Department: 3683)

Fluid-pressure and analogous brake systems

Multiple fluid-receiving devices

Multiple motors

C303S118100, C303S123000

Reexamination Certificate

active

10499013

ABSTRACT:
An electro-pneumatic system including relay valves disposed between a pressure supply inlet and outputs respectively, and having respective control inputs; associated solenoid-operated valves each operable in a first or a second condition respectively to allow or prevent connection of the control input of the relay valves respectively to a pneumatic duct; a solenoid-operated commutation valve having respective first and second conditions in which it connects the pneumatic duct to the control input of the system to receive a braking control pressure or to an inlet/outlet aperture of a second solenoid-operated switching valve; and an electronic control unit (ECU) arranged to control the solenoid valves. The second switching valve has respective first and second conditions in which its inlet/outlet aperture is connected to a discharge passage opening to the outside environment or to the supply inlet.

REFERENCES:
patent: 4861115 (1989-08-01), Petersen
patent: 5718486 (1998-02-01), Vollmer et al.
patent: 7020551 (2006-03-01), Goebels et al.
patent: 2500219 (1976-07-01), None
patent: 2270130 (1994-03-01), None

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