Electric steering and drive system for a vehicle with wheel side steering system

1. An electrical steering and drive system for a vehicle with wheel-based steering having first and second drive sides, the system comprising:

at least two electrically driven axles;

a mechanical coupling between the drive sides being provided on at least one driven axle in order to transmit power from one drive side to the other; and

an electrical transmission of drive power on the other driven axles.

2. The electrical steering and drive system according to claim 1 , wherein the mechanical coupling comprises:

at least one differential gear mechanism;

a steering motor;

and a shaft.

3. The electrical steering and drive system according to claim 1 , wherein the electrical transmission of drive power is adapted to transmit steering power from one drive side to the other.

4. The electrical steering and drive system according to claim 1 wherein both an electric driving motor and an electric steering motor are provided on the mechanical coupling.

5. The electrical steering and drive system according to claim 2 wherein both an electric driving motor and an electric steering motor are provided on the mechanical coupling.

6. The electrical steering and drive system according to claim 3 wherein both an electric driving motor and an electric steering motor are provided on the mechanical coupling.

7. The electrical steering and drive system according to claim 1 , wherein electric motors which are integrated into the wheel hub are provided on all the driven axles.

8. The electrical steering and drive system according to claim 2 , wherein electric motors which are integrated into the wheel hub are provided on all the driven axles.

9. The electrical steering and drive system according to claim 3 , wherein electric motors which are integrated into the wheel hub are provided on all the driven axles.

10. The electrical steering and drive system according to claim 4 , wherein electric motors which are integrated into the wheel hub are provided on all the driven axles.

11. The electrical steering and drive system according to claim 5 , wherein electric motors which are integrated into the wheel hub are provided on all the driven axles.

12. The electrical steering and drive system according to claim 6 , wherein electric motors which are integrated into the wheel hub are provided on all the driven axles.

13. The electrical steering and drive system according to claim 1 , wherein at least one element for distributing torque, to which a plurality of wheels of one side of the vehicle can be coupled, is provided on the mechanical coupling.

14. The electrical steering and drive system according to claim 1 , wherein at least one element for compensating for rotational speed, to which a plurality of wheels of one side of the vehicle can be coupled, is provided on the mechanical coupling.

15. The electrical steering and drive system according to claim 2 , wherein at least one element for distributing torque, to which a plurality of wheels of one side of the vehicle can be coupled, is provided on the mechanical coupling.

16. The electrical steering and drive system according to claim 2 , wherein at least one element for compensating for rotational speed, to which a plurality of wheels of one side of the vehicle can be coupled, is provided on the mechanical coupling.

17. The electrical steering and drive system according to claim 3 , wherein at least one element for distributing torque, to which a plurality of wheels of one side of the vehicle can be coupled, is provided on the mechanical coupling.

18. The electrical steering and drive system according to claim 3 , wherein at least one element for compensating for rotational speed, to which a plurality of wheels of one side of the vehicle can be coupled, is provided on the mechanical coupling.

19. The electrical steering and drive system according to claim 1 , wherein the vehicle is selected from the group consisting of a wheeled vehicle and a crawler vehicle.