Smh Management Services Ag

Raphael Brunner

Jacques Muller

Robert Apter

The series hybrid traction assembly comprises an electric generator set, a static converter and at least one tandem traction set intended to drive two driving wheels of a vehicle. The traction set (1) comprises two back-gear motors each comprising an electric motor (4, 14) and a reducing gear (7, 17) which drives the wheel by means of a transmission shaft. The two reducing gears are adjacent to a median plane (24). The motor driving the wheel situated on one side of the median plane is on the other side of such plane, so that each driving line preferably has a Z-shaped outline and the axial space requirement of the traction set is reduced. The assembly also comprises a generator set (40) formed of a heat engine (41) and a generator (42), this set being arranged facing one (4) of the electric motors, on the other side of the median plane. A very compact assembly results.

Series hybrid traction assembly and vehicle comprising such an assembly

The wheel drive module comprises a motor (9), a casing (1) partially housing the motor, a wheel support platform (22), a wheel (R) rigidly mounted on the platform, a reduction transmission (31) engaging directly between the motor and the wheel, and a single main transmission shaft (12) bearing the rotor (13) of the motor as well as an input member (35) of the transmission. The casing (1) comprises on the side of the wheel, a fixing shank (18) externally receiving a bearing for said platform (22). The length of the shank is equal to the distance (d) between the input member (35) of the transmission (31) and the free end of the rear part of the platform (22). The reduction transmission (31) is housed in the platform (22). Finally a portion of the main transmission shaft that is torsionally deformable is housed inside the fixing shank.

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Bienne, Switzerland

Raphael Brunner