Track-bound electric motor vehicle
AssigneeSiemens Aktiengesellschaft
InventorGunter Bille
Life of this patent
Estimating the term…
Abstract
Disclosed is a driving arrangement for an electric motor vehicle in which each of the two wheels of an axle is supported on separate shaft sections. Each motor or each rotor of a dual rotor motor drives only one driving wheel of an axle in order to mechanically decouple the driving wheels. One of the separate shaft sections of the axles includes a tapered portion which forms a shaft stub and the other shaft section includes a hollow shaft stub. The tapered shaft stub is supported in the hollow shaft stub by a slide bearing disposed inside the hollow shaft stub. Speed differences at the slide bearing between the axle sections can result only from slippage when negotiating a turn or from uneven wear of, for example, the wheels.
Claims10
In a track-bound motor vehicle including an axle having two wheels, electric motor means for driving each wheel and gearing for coupling the electric motor means to the wheels, the improvement comprising an axle having a separate shaft section coupled to each wheel, one of the shaft sections including a reduced dimension portion and the other of the shaft sections having a hollow portion which receives the reduced dimension portion of the one shaft section, bearing means for supporting the reduced dimension portion of the one shaft section in the hollow portion of the other shaft section, a hollow shaft surrounding each separate shaft section with clearance, one of the hollow shafts having a reduced dimension portion which is received in and supports the other of the hollow shafts, and an elastic coupling connected to each separate shaft section for elastically supporting the hollow shafts and coupling them to the separate shaft sections.
Dependencies are inferred from the claim text.