PARK BRAKE SAFETY ACTIVATION

A safety park brake system of a vehicle is disclosed. The safety system comprises a pneumatic park brake, a park brake electronic unit, a controller, an air brake sub-system in air communication with the pneumatic park brake, and a compressor. The compressor is configured to provide pressurized air...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	GAILLAUD, Pierig, BLANC, Xavier
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL PERFORMING OPERATIONS PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES TRANSPORTING VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	A safety park brake system of a vehicle is disclosed. The safety system comprises a pneumatic park brake, a park brake electronic unit, a controller, an air brake sub-system in air communication with the pneumatic park brake, and a compressor. The compressor is configured to provide pressurized air to the air brake sub-system through a discharge line arranged between the compressor and the air brake sub-system. The controller is configured to receive a park brake request, detect an error associated with a failure in the park brake electronic unit, and impede inflow of pressurized air into the air brake sub-system. The safety park-brake system is configured to control discharge of air from the air brake sub-system to thereby achieve a drop in air pressure. The pneumatic park brake is configured to automatically apply once the air pressure in the air brake sub-system drops below a predetermined threshold.