Powertrain with double epicyclic gear train for a hybrid type motor vehicle
AssigneeIfp Energies Nouvelles
InventorStéphane Venturi
Life of this patent
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Abstract
The present invention is a powertrain for a hybrid type motor vehicle comprising an electric machine (22), a thermal engine (10), a speed variation device (14) including an engine epicyclic gear train (26) with a sun gear (36) and a crown (50), each connected to shaft (12) of thermal engine (10) by a controlled clutch (28, 30) and to a fixed portion (48) of the vehicle by a one-way coupling (32, 34), and a motion transmission track (120, 122) for motion transmission to a drive axle (16). The powertrain comprises another epicyclic gear train (96) connecting engine epicyclic gear train (26) to said motion transmission track (120, 122).
Claims35
A powertrain for a hybrid type motor vehicle comprising an electric machine, a thermal engine, a speed variation device including an engine epicyclic gear train with a sun gear and a crown which are each connected to an engine shaft of the thermal engine by a controlled clutch and to a fixed portion of the vehicle by a one-way coupling, and a motion transmission track for transmission of motion to a drive axle comprising another epicyclic gear train connecting the engine epicyclic gear train to the motion transmission track.
Dependencies are inferred from the claim text.