The invention relates to the technical field of motor vehicles such as electric vehicles, in particular to a wheel hub motor driving system and a motor vehicle. The wheel hub motor driving system comprises a driving motor which comprises a stator and a rotor which is located on the radial inner side of the stator and can rotate relative to the stator; a rotor holder that supports the rotor from the inside in the radial direction and is fixed to the rotor; a planetary gear speed reducer which comprises a sun gear shaft fixed to the rotor support, a plurality of planetary gears located in the radial outer side of the sun gear shaft and a planetary gear carrier installed on the planetary gears; and an output shaft fixed with the planet carrier. The driving force/torque is transmitted to the output shaft via the rotor, the rotor holder, the sun gear shaft, the planet gears, and the planet carrier. Thus, the transmission path of the driving force/torque of the motor vehicle comprising the hub motor driving system is shorter than that of the driving force/torque of the motor vehicle in the prior art, so that the efficiency of the driving system, and the power loss is reduced.
本发明涉及例如电动汽车等的机动车技术领域,具体地涉及轮毂电机驱动系统及机动车。该轮毂电机驱动系统包括:驱动电机,其包括定子和位于定子的径向内侧且能够相对于定子转动的转子;转子支架,其从径向内侧支撑转子且固定于转子;行星齿轮减速器,其包括固定于转子支架的太阳轮轴、位于太阳轮轴的径向外侧的多个行星齿轮和安装于多个行星齿轮的行星轮架;以及输出轴,其与行星轮架固定在一起,驱动力/扭矩经由转子、转子支架、太阳轮轴、行星齿轮和行星轮架传递到输出轴。这样,包括上述轮毂电机驱动系统的机动车的驱动力/扭矩的传递路径相比现有技术的机动车的驱动力/扭矩的传递路径较短,因此提高了驱动系统的效率并且减小了动力损耗。
Wheel hub motor driving system and motor vehicle
轮毂电机驱动系统及机动车
2020-05-19
Patent
Electronic Resource
Chinese
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES |
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