Patent ID: 7950480

Claim:
A hybrid motor vehicle power train operating in combustion mode or in electric mode, and comprising: a gearbox including a primary shaft; a clutch including a clutch housing; a combustion engine including a crankshaft coupled to the gearbox via the clutch, and an electric machine positioned within the clutch housing and permanently connected to the primary shaft of the gearbox, and the electric machine is offset in a lateral direction with respect to the combustion engine such that the electric machine overlaps the combustion engine in a radial direction from an axis of the crankshaft, wherein the primary shaft bears a first fixed toothing to drive the electric machine in the combustion mode or to run forward or in reverse in the electric mode according to a direction of rotation of the electric machine, a second fixed toothing of a first gear ratio, at least four freely rotating pinions of higher gear ratios, and a fixed drive wheel, a secondary shaft bears a freely rotating pinion of the first gear ratio and at least four fixed toothings of higher gear ratios, the electric machine is connected to the fixed drive wheel by a chain, and the fixed drive wheel is not directly coupled to any pinion or fixed toothing on the secondary shaft.