Electropneumatic parking brake module for utility vehicles with spring-type parking brakes

An electropneumatic parking brake module, comprising:

• a supply port configured to connect a compressed air supply;
• at least one spring brake actuator port configured to connect at least one spring brake cylinder;
• a trailer control port configured to connect a trailer control valve and at which a trailer control pressure is configured to be controlled;
• an inlet-outlet valve unit configured to control a spring brake pressure at the at least one spring brake actuator port, and
• an electropneumatic pilot control unit configured to control at least one control pressure at the inlet-outlet valve unit and configured to perform a trailer control position function, the electropneumatic pilot control unit including a 3/3-way valve that has a first switching position, a second switching position, and a third switching position,
• wherein, in the first switching position, the at least one control pressure is configured to be controlled at the inlet-outlet valve unit via the 3/3-way valve,
• wherein, in the second switching position, the trailer control position function is configured to be carried out, and
• wherein, in the third switching position, the inlet-outlet valve unit and the trailer control port are connected to a vent.