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1. (WO2018041383) ELECTRONICALLY CONTROLLABLE PNEUMATIC BRAKE SYSTEM IN A UTILITY VEHICLE AND METHOD FOR ELECTRONICALLY CONTROLLING A PNEUMATIC BRAKE SYSTEM IN A UTILITY VEHICLE

Pub. No.:    WO/2018/041383    International Application No.:    PCT/EP2017/000813
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Tue Jul 11 01:59:59 CEST 2017
IPC: B60T 13/68
B60T 13/66
Applicants: WABCO EUROPE BVBA
Inventors: WULF, Oliver
Title: ELECTRONICALLY CONTROLLABLE PNEUMATIC BRAKE SYSTEM IN A UTILITY VEHICLE AND METHOD FOR ELECTRONICALLY CONTROLLING A PNEUMATIC BRAKE SYSTEM IN A UTILITY VEHICLE
Abstract:
The invention relates to an electronically controllable pneumatic brake system (100) in a vehicle (200), at least comprising: wheel brakes (1, 2, 3, 4), where wheel brakes (3, 4) of at least one vehicle axle (HA, VA) comprise spring-type brake cylinders (3a, 4a), an electronically controllable monostable bypass valve (16), where the monostable bypass valve (16) is arranged between a manually actuatable parking brake valve (15) and the spring-type brake cylinders (3a, 4a) in such a way that, in a first switching position (Z1), the monostable bypass valve (16) controls a bypass control pressure (p16) according to an actuation pressure (p15) produced by the parking brake valve (15), in order to implement a manually pre-defined parking brake force (fPBm), and, in a second switching position, it controls a bypass control pressure (p16) according to a prevailing bleed pressure (pE) in a bypass bleed connection (16c), in order to implement an electrically pre-defined parking brake force (fPBe), where a parking brake brake pressure (pPB) controlled on the spring-type brake cylinder (3a, 4a) can be adjusted according to the bypass control pressure (p16), and where the monostable bypass valve (16) automatically shifts into the first switching position (Z1) without electrical control.