Patent ID: 7823670

Claim:
Hybrid traction drive for a vehicle comprising: a heat engine equipped with a crankshaft whose crank arms extend substantially perpendicular to its longitudinal axis; a transmission member positioned between the crankshaft output and the driven wheels of the vehicle, the crankshaft being coupled to the wheels via the transmission member; at least one first electrical machine and at least one second electrical machine, each having a stator and a rotor, the first electrical machine being capable of cooperating with the transmission member and the second electrical machine being capable of cooperating with the heat engine in order to provide combustion and/or electrical drive separately or jointly to the driven wheels; a battery coupled to the first and second electrical machines; and a control member capable of controlling the battery charge/discharge process, the heat engine and the first and second electrical machines. wherein the first electrical machine is positioned between the transmission member and one of the driven wheels, and the second electrical machine is positioned inside the heat engine, the rotor of the second electrical machine being attached onto a crank arm of the crankshaft and its stator being secured inside the heat engine crankcase.