An electropneumatic trailer control-valve unit for a vehicle includes a storage port for coupling a store of compressed air for a trailer, a brake-pressure port, and a brake-pressure pilot-control unit configured to output at least one first control pressure. The electropneumatic trailer control-valve unit further includes a brake-pressure main-valve unit configured to receive the first control pressure and to output a brake pressure at a brake-pressure port, a trailer operating-pressure port configured to receive a trailer operating pressure; and a pneumatically switched trailer protection valve with a protection-valve control port which is connected to the trailer operating-pressure port for receiving the trailer operating pressure. The trailer protection valve switches from a first switching position into a second switching position if the trailer operating pressure exceeds a predetermined first threshold value.
Electropneumatic trailer control-valve unit for North America
2022-05-24
Patent
Electronic Resource
English
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
ELECTROPNEUMATIC TRAILER CONTROL-VALVE UNIT FOR NORTH AMERICA
European Patent Office | 2020
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