| 摘要 |
The invention relates to a parking brake module (10) for a pressure medium-operated brake system of a vehicle having a parking brake function by means of at least one spring brake cylinder (12). Said parking brake module (10) comprises a first valve device (44) which increases the amount of pressure medium and is fitted with an inlet (46) that can be connected to a pressure medium reservoir (24), an outlet (50) that can be connected to at least one spring-loaded part (14) of a spring brake cylinder (12), and a control input (58) that is connected to a control line (60). The parking brake module (10) further comprises a second valve device (76) encompassing at least one first connection (78) which is used as a trailer control valve connection and can be connected to a trailer control valve (22) in order to control a trailer brake. In order to provide a valve concept for different vehicle configurations, particularly including an anti jackknifing function, a pressure prevailing at the first connection (78) of the second valve device (76) can be adjusted regardless of the pressure prevailing in the pressure medium reservoir (24) and a pressure prevailing at the outlet (50) of the valve device (44) that increases the amount of pressure medium.
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