The electric drive axle system of the pure electric vehicle comprises a middle axle and a rear axle, and the middle axle is of a double-motor double-gearbox non-power-interruption structure; the rear axle adopts a single-motor and single-gearbox structure; the electric drive axle system of the pure electric vehicle further comprises three TCU controllers, wherein a TCU controller and a total TCU controller are independently arranged on the middle axle and the rear axle respectively. According to the electric drive axle system of the pure electric vehicle, each axle is an independent power control unit, even if one axle breaks down and cannot output power, the other axle cannot be affected, and the problems that the whole vehicle lies down, power is lost, and driving cannot be conducted are solved; the middle axle of the system is a system without power interruption, the torque proportion of the two motors can be adjusted according to the current whole vehicle torque requirement, the running rotating speed and the torque working point of the motors can be adjusted, and the system efficiency is optimized.
本发明公开了一种纯电动汽车电驱桥系统,包括中桥和后桥,中桥采用的双电机双变速箱的无动力中断结构;后桥采用单电机,单变速箱结构;纯电动汽车电驱桥系统还包括三个TCU控制器,其中中桥和后桥上都分别独立有一个TCU控制器以及一个总TCU控制器。本发明提供的纯电动汽车电驱桥系统,每个桥都是一个独立的动力控制单元,即使在一个桥出现故障,导致这个桥不能输出动力时,另一个桥也不会受到什么影响,不会导整车出现趴窝,动力丢失,不能行车等问题;系统的中桥是无动力中断的系统,可根据当时的整车扭矩需求,调整2个电机的扭矩比例,可调整电机运行的转速、扭矩工作点,优化系统效率。
Electric drive axle system of pure electric vehicle
一种纯电动汽车电驱桥系统
2025-01-07
Patent
Electronic Resource
Chinese
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