Parking Brake for an Electric Vehicle With Multi-Speed Gearbox

A commercial vehicle comprising:

• at least one driven axle;
• at least one service brake;
• at least one propulsion engine;
• a pair of wheels, wherein
• a parking brake function of the vehicle is solved by a bistable locking means acting on both wheels;
• a first multi-speed gearbox having a first gear stage activated by a first actuator and coupled to a first wheel of the pair of wheels;
• a second multi-speed gearbox having a second gear stage activated by a second actuator and coupled to a second wheel of the pair of wheels, wherein
• the parking brake function is achieved at least in-part by concurrently activating the first gear stage and the second gear stage;
• an input shaft lock, when activated, to couple an input of the first multi-speed gearbox with an input of the second multi-speed gearbox;
• a computing device configured to activate the bistable locking means when the commercial vehicle is at a standstill;
• and an electronic brake control unit, wherein
• when the vehicle is in motion, the computing device is configured to send a brake request via an electronic signal to the electronic brake control unit to activate the at least one service brake.

A commercial vehicle comprising:

• at least one driven axle;
• at least one service brake;
• at least one propulsion engine;
• a pair of wheels, wherein
• a parking brake function of the vehicle is solved by a bistable locking means acting on both wheels;
• a first multi-speed gearbox having a first gear stage activated by a first actuator and coupled to a first wheel of the pair of wheels;
• a second multi-speed gearbox having a second gear stage activated by a second actuator and coupled to a second wheel of the pair of wheels, wherein
• the parking brake function is achieved at least in-part by concurrently activating the first gear stage and the second gear stage;
• an elastic coupling;
• and
• a sliding clutch comprising:
• a toothed selector ring coupled to the elastic coupling that allows for limited rotational movement of the toothed selector ring about a sliding axis of the sliding clutch, wherein
• the sliding clutch is actuated by the second actuator.