Patent ID: 11919400
Assignee: VOLVO TRUCK CORPORATION
Field: Transport (Mechanical engineering)
Classification: CPC B  F  Y | IPC B

Claim 0:
1. A powertrain for a Mild Hybrid vehicle, said powertrain comprising:
an engine;
a driveline including a gearbox having an input shaft connected to the engine, an output shaft to be connected to driving wheels of the vehicle and a countershaft couplable to the input shaft for transmitting a rotation of the input shaft to the output shaft;
an electric machine;
a coupling, in the form of a power take-off, which is connected to the countershaft, and configured to be coupled to a fitting of an auxiliary; and
a gear reduction mechanism having a free wheel and at least three separate and rotatable junction elements,
wherein the rotational speeds of the junction elements are interdependent but do not have a fixed ratio relative to one another, said junction elements including: a first junction element that is connected to the electric machine, a second junction element that is connectable to the free wheel and a third junction element that is connected to the countershaft;
wherein the torque ratio between the third junction element and the first junction element can be selected from at least two different ratios, namely a first ratio and a second ratio;
wherein said coupling is arranged at one end of a shaft which, in the mounted position, is an extension of the countershaft or is configured to have the same rotational speed as the countershaft, the powertrain further comprises an additional gearing mechanism as a connecting mechanism between the third junction element and the countershaft, and the additional gearing mechanism is arranged to create an offset between the countershaft and the first junction element, the offset being along a direction orthogonal to an axis of the first junction element,
wherein said offset provides enough room to accommodate, on a side opposite the engine along a longitudinal direction, both the electric machine and the auxiliary coupled to the power take-off.