Braking device of a rail vehicle with separate actuation device for actuating the active pressurised air brake as parking brake

摘要

The brake unit has active valve units where a pneumatic brake is provided as a service brake. The pneumatic brake is actuated by parking brake actuating unit (52). Spring brake cylinders (24,26) are in compressed air connection with an air supply (28), and are controlled by the parking brake actuating unit. The valve units vent the pneumatic actuators (2,4,6,8) of the pneumatic brake by controlling a request signal produced by the parking brake actuating device for applying and releasing the parking brake. A passive spring-loaded brake is also provided as a parking brake.