The invention belongs to the technical field of electric vehicles, especially relating to a double-motor driving device of an electric automobile which comprises a first planetary speed reducing mechanism, a first inner rotor motor, a second planetary speed reducing mechanism and a second inner rotor motor which are arranged in sequence. A first rotor is fixed to a first sun wheel shaft. A first planet carrier or a first shell is fixedly connected with a first stator. A second shell is fixedly connected with the first stator, the second stator is fixedly connected with the second shell and thefirst stator, and the second rotor is fixed to the second sun wheel shaft. The clutch mechanism is arranged between the first sun gear shaft and the second planet carrier, the first detection feedback structure is arranged corresponding to the first sun gear shaft, and the second detection feedback structure is arranged corresponding to the second planet carrier. Synchronous connection between afirst planet speed reducing mechanism and a second planet speed reducing mechanism can be achieved, running is stable, the blocking phenomenon is avoided, and the problems that power is insufficient during starting and low-speed climbing, and power consumption is large during high-speed running are solved.
本发明属于电动汽车技术领域,尤其涉及一种电动汽车双电机驱动装置,包括依次设置的第一行星减速机构、第一内转子电机、第二行星减速机构、第二内转子电机,第一转子固定于第一太阳轮轴上,第一行星轮架或者第一外壳与第一定子固定连接,第二外壳与第一定子固定连接,第二定子与第二外壳、第一定子固定连接,第二转子固定于第二太阳轮轴上;还包括设置于第一太阳轮轴与第二行星轮架之间的离合机构、对应第一太阳轮轴设置的第一检测反馈结构、对应第二行星轮架设置的第二检测反馈结构。可以实现第一行星减速机构与第二行星减速机构之间的同步接合,行驶平稳,不会出现卡顿现象,解决了在起步与低速爬坡时动力不足及高速行驶时电量消耗大的问题。
Dual-motor driving device of electric automobile
一种电动汽车双电机驱动装置
2020-08-07
Patent
Electronic Resource
Chinese
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