The invention relates to a multi-mode dynamic coupling driving system for a dual-motor pure electric vehicle. The multi-mode dynamic coupling driving system comprises a first motor, a second motor, a first input shaft, a second input shaft, a compound planetary gear mechanism, a first brake, a second brake, a third brake, a planetary gear set shell, a reduction gear, an output shaft and a differential mechanism. The first motor is connected with the compound planetary gear mechanism through the first input shaft; the second motor is connected with the compound planetary gear mechanism through the second input shaft; the first input shaft, the second input shaft and the compound planetary gear mechanism are braked by the first brake, the second brake and the third brake respectively; the reduction gear transmits power output by the compound planetary gear mechanism to the output shaft; and the power is shunted by the differential mechanism and then drives wheels to run. Six driving modes including four single-motor independent driving modes and two double-electric power coupling driving modes can be realized, so that the motors can work in an efficient interval on the premise of meeting driving requirements, the efficiency of the driving system is improved, and the driving mileage of the electric vehicle is prolonged.
本发明涉及一种双电机纯电动汽车多模动力耦合驱动系统,包括第一电动机、第二电动机、第一输入轴、第二输入轴、复合行星齿轮机构、第一制动器、第二制动器、第三制动器、行星齿轮组壳体、减速齿轮、输出轴和差速器;第一电动机通过第一输入轴与复合行星齿轮机构相接,第二电动机通过第二输入轴与复合行星齿轮机构相接,其中第一、第二、第三制动器分别制动第一输入轴、第二输入轴和复合行星齿轮机构;减速齿轮将复合行星齿轮机构输出的动力传递至输出轴,经差速器分流后驱动车轮行驶。本发明能够实现六种驱动模式,其中四种单电机单独驱动模式、两种双电动动力耦合驱动模式,使得电动机能够在满足驾驶需求的前提下,更多地工作在高效区间,提高驱动系统效率,延长电动汽车行驶里程。
Multi-mode dynamic coupling driving system for dual-motor pure electric vehicle
一种双电机纯电动汽车多模动力耦合驱动系统
2021-11-09
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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