Series hybrid traction assembly and vehicle comprising such an assembly
First Claim
1. A series hybrid traction assembly for a motor vehicle, said assembly comprising an electric generator set, at least one traction set comprising two electric motors driving respective second shafts respectively aligned with each other and respectively coupled to a left wheel and a right wheel of the vehicle, and at least one static converter connected in series between said generator set and said traction set, wherein said traction set comprises two back-gear motors each comprising one of the electric motors and a reducing gear provided with one of said second shafts and a respective first shaft coupled to a rotor of said electric motor, the first shaft of each reducing gear being parallel to the second shaft thereof and at a distance from the latter, said two reducing gears being arranged respectively either side of a median plane and adjacent to each other in the region of said second shafts, and wherein, in at least one of said back-gear motors, the electric motor extends entirely on the other side of said median plane with respect to the reducing gear, said two electric motors not being aligned with each other, and wherein said generator set arranged substantially facing one of said electric motors, on the other side of said median plane with respect to such motor.
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Accused Products
Abstract
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.
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Citations
12 Claims
- 1. A series hybrid traction assembly for a motor vehicle, said assembly comprising an electric generator set, at least one traction set comprising two electric motors driving respective second shafts respectively aligned with each other and respectively coupled to a left wheel and a right wheel of the vehicle, and at least one static converter connected in series between said generator set and said traction set, wherein said traction set comprises two back-gear motors each comprising one of the electric motors and a reducing gear provided with one of said second shafts and a respective first shaft coupled to a rotor of said electric motor, the first shaft of each reducing gear being parallel to the second shaft thereof and at a distance from the latter, said two reducing gears being arranged respectively either side of a median plane and adjacent to each other in the region of said second shafts, and wherein, in at least one of said back-gear motors, the electric motor extends entirely on the other side of said median plane with respect to the reducing gear, said two electric motors not being aligned with each other, and wherein said generator set arranged substantially facing one of said electric motors, on the other side of said median plane with respect to such motor.
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10. A motor vehicle comprising a series hybrid traction assembly, said traction assembly comprising an electric generator set, at least one traction set comprising two electric motors driving respective second shafts respectively aligned with each other and respectively coupled to a left wheel and a right wheel of the vehicle, and at least one static converter connected in series between said generator set and said traction set,
wherein said traction set comprises two back-gear motors each comprising one of the electric motors and a reducing gear provided with one of said second shafts and a respective first shaft coupled to a rotor of said electric motor, the first shaft of each reducing gear being parallel to the second shaft thereof and at a distance from the latter, said two reducing gears being arranged respectively either side of a median plane and adjacent to each other in the region of said second shafts, and wherein, in at least one of said back-gear motors, the electric motor extends on the other side of said median plane with respect to the reducing gear, said two electric motors not being aligned with each other, and wherein said generator set is arranged substantially facing one of said electric motors, on the other side of said median plane with respect to such motor.
Specification