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1. (WO2017032617) ELECTRIC PARKING BRAKE DEVICE HAVING AN ADDITIONAL ENERGY SUPPLY

Pub. No.:    WO/2017/032617    International Application No.:    PCT/EP2016/069201
Publication Date: Fri Mar 03 00:59:59 CET 2017 International Filing Date: Sat Aug 13 01:59:59 CEST 2016
IPC: B60T 13/38
B60T 17/22
B60T 15/24
B60T 13/66
B60T 13/68
Applicants: KNORR-BREMSE SYSTEME FÜR NUTZFAHRZEUGE GMBH
Inventors: FEUCHT, Thomas
HERGES, Michael
Title: ELECTRIC PARKING BRAKE DEVICE HAVING AN ADDITIONAL ENERGY SUPPLY
Abstract:
The invention relates to an electric parking brake device (1), comprising a controller (14), a valve device (8), a spring accumulator braking cylinder, a relay valve (18) having a pneumatic control input (20), which control input is connected to the electromagnetic valve device (8), which valve device, in the venting position, vents the pneumatic control input (20) of the relay valve (18), as a result of which a working output (28) of the relay valve (18), which is connected to the at least one spring accumulator braking cylinder, is vented, a first electrical energy supply (66), which supplies the electronic controller (14) with electrical energy, and an electric actuating device (36). The invention is characterized by a second, independent electrical energy supply (68), by means of which the electronic controller (14) and/or an electric switching device (76) can be supplied with electrical energy, and by an electric switch (72) which, in one switched position, connects the electronic controller (14) and/or the electric switching device (76) to the second electrical energy supply (68).