Pneumatic braking device for a utility vehicle
AssigneeKNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
InventorsFabian Griesser, Christian Kuhlen, Karsten Schnittger
Life of this patent
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Abstract
A pneumatic braking device for a utility vehicle includes at least one pneumatically controllable spring accumulator for a parking brake of the utility vehicle with an electronic parking brake device. The electronic parking brake device has at least one electronic control unit, at least one first bistable valve unit, at least one second bistable valve unit, at least one valve device which can be connected in such a way that when there is a decrease in the system pressure for supplying the parking brake of the trailer of the traction vehicle, the parking brake of the trailer can be activated, and a traction vehicle protection valve.
Claims12
A pneumatic brake device for a utility vehicle, comprising:
- at least one pneumatically actuable spring store for a parking brake of the utility vehicle;
- an electronic parking brake device, comprising
- at least one electronic control unit,
- at least one first bistable valve unit and at least one second bistable valve unit,
- at least one valve device which is connectable such that, when there is a drop in system pressure for supplying a parking brake of a trailer of the tractor vehicle, the parking brake of the trailer is activatable, and
- a tractor vehicle protection valve;
- wherein one or both of the first and the second bistable valve units comprise a bistable valve with feedback;
- wherein the bistable valve is a relay valve;
- and
- wherein the bistable valve unit further has a pressure sensor.
Dependencies are inferred from the claim text.