Abstract: The invention relates to a device (1) for the transmission of power between a shaft (2) of a heat engine (3) and a wheel (5) axle shaft (4) of a motor vehicle. The inventive device (1) comprises at least one electrical machine (6, 7) comprising a machine shaft (8, 9) and a mechanical pump (11) comprising a pump shaft (55). The shaft (2) of the engine (3) and the machine shaft (8, 9) are connected to the pump shaft (55) by means of a mechanism (12) comprising two free wheels. The connection between the pump (11) and the shafts (8, 9) of the transmission device is such that the pump (11) can be driven in any vehicle operating mode.

Abstract: The invention concerns a device for coupling a rotor of a rotating electrical machine with the gearbox primary shaft of a motor vehicle heat engine. The device is characterized in that the hub (7) of the rotor (6) is coupled with the primary shaft (8) by a mating part (25) comprising an externally toothed crown (26) meshing in the hub (7) and a central sleeve (27) coupled with the primary shaft (8) through a splined connection (28) and in that ends (29) and (30) of the toothed crown (26) and of the central sleeve (27) of the part (25) are centered respectively in the hub (7) and on the primary shaft (8) in sliding arrangement. The invention is applicable in the automotive industry.

Abstract: The present invention concerns a device (1) for power transmission between an output (2) of a heat engine (3) and an axle (5) shaft (4) and a related power transmission method. Said device comprises an input shaft (10) connected to the output (2), an output shaft (14) connected to the axle shaft (4), first and second electrical machines (6, 7), and a mechanical assembly (12) assembling the input shaft (10), the output shaft (14) and the shafts (8, 9) of the two machines. In order to limit the dimension of the device, the assembly (12) consists of two planetary trains (65, 66) comprising common planet pinion cage (18) which drives axles (23-26) in contact with the planet pinion cage (18) and the planet pinions (19, 21) of said trains. Moreover, a first switching device (30) connects the shaft (8) of the first machine (6) either to the input shaft (10) or to an element (22) of one of the trains (65, 66) of the mechanical assembly (12).

Abstract: The invention relates to a device (1) for the transmission of power between a shaft (2) of a heat engine (3) and a wheel (5) axle shaft (4) of a motor vehicle. The inventive device (1) comprises at least one electrical machine (6, 7) comprising a machine shaft (8, 9) and a mechanical pump (11) comprising a pump shaft (55). The shaft (2) of the engine (3) and the machine shaft (8, 9) are connected to the pump shaft (55) by means of a mechanism (12) comprising two free wheels. The connection between the pump (11) and the shafts (8, 9) of the transmission device is such that the pump (11) can be driven in any vehicle operating mode.

Abstract: The invention concerns a device for coupling a rotor of a rotating electrical machine with the gearbox primary shaft of a motor vehicle heat engine. The device is characterized in that the hub (7) of the rotor (6) is coupled with the primary shaft (8) by a mating part (25) comprising an externally toothed crown (26) meshing in the hub (7) and a central sleeve (27) coupled with the primary shaft (8) through a splined connection (28) and in that ends (29) and (30) of the toothed crown (26) and of the central sleeve (27) of the part (25) are centered respectively in the hub (7) and on the primary shaft (8) in sliding arrangement. The invention is applicable in the automotive industry.