Patent ID: 11951821
Assignee: VOLVO TRUCK CORPORATION
Field: Transport (Mechanical engineering)
Classification: CPC B  Y | IPC B

Claim 12:
13. An electric powertrain for a vehicle, comprising at least one electric motor and a gearbox for transmitting a motor torque to at least one drive shaft, the gearbox for an electric powertrain, the gearbox comprising:
a primary shaft, on which are arranged a first primary gear which is fixed in rotation with respect to the primary shaft, a second primary gear and a third primary gear;
a secondary shaft, on which are arranged a first secondary gear that is meshing with the first primary gear and that is by default free to rotate around the secondary shaft, a second secondary gear meshing with the second primary gear and a third secondary gear meshing with the third primary gear;
a first coupling member, which is arranged along the secondary shaft and which can be moved between:
an engaged position, in which it couples the first secondary gear in rotation with the secondary shaft; and
a neutral position, in which the first secondary gear can rotate around the secondary shaft; and

a second coupling member, which is arranged along one shaft among the primary and secondary shafts and which is movable between:
a first position in which it couples one of the second and third gears in rotation with the one shaft;
a second position in which it couples the other of the second and third gears in rotation with the one shaft; and
a neutral position in which the second and third gears can rotate around the one shaft;

wherein the electric motor comprises a motor shaft on which is arranged a pinion meshing with the first primary gear of the primary shaft.