The invention discloses a multi-hub motor integrated modulation driving system of an electric vehicle and a control method of the multi-hub motor integrated modulation driving system, and the driving system consists of a vehicle control unit, two integrated drivers with consistent structures and a multi-mode arbiter, each integrated driver is formed by connecting an integrated modulation controller and a six-half-bridge bridge arm group driver in series, and the output end of the six-half-bridge bridge arm group driver in each integrated driver is connected with two hub motors on the corresponding side of the vehicle; on the basis of torque control, two hub motors on the same side in a distributed driving vehicle serve as an integrated system, direct cooperative driving of the four hub motors of the distributed driving electric vehicle is achieved through two integrated drivers, an integrated space voltage vector diagram of the distributed driving electric vehicle is constructed, the two originally independent hub motors are considered as a whole, and the integrated space voltage vector diagram of the distributed driving electric vehicle is constructed. The operation load of an upper-layer vehicle control unit is effectively shared, the economical efficiency and the overall efficiency of the electric vehicle are both considered, and the maneuvering performance of the electric vehicle under variable working conditions is comprehensively improved.
本发明公开电动车辆的一种多轮毂电机一体化调制驱动系统及其控制方法,驱动系统由一个整车控制器、两个结构一致的集成驱动器和一个多模式仲裁器组成,每个集成驱动器均由一个一体化调制控制器和六半桥桥臂组驱动器串联组成,每个集成驱动器中的六半桥桥臂组驱动器的输出端连接车辆对应一侧的两个轮毂电机;以转矩控制为基础,以分布式驱动车辆中的同一侧的两个轮毂电机作为一体化系统,经由两个集成驱动器实现分布式驱动电动车辆四个轮毂电机的直接协同驱动,构建其一体化空间电压矢量图,将两个原本独立的轮毂电机统筹考虑,有效分担上层整车控制器运算负荷,兼顾电动车辆经济性和整体效率,综合提高电动车辆在多变工况下的操纵性能。
Multi-hub motor integrated modulation driving system and control method thereof
一种多轮毂电机一体化调制驱动系统及其控制方法
2024-11-12
Patent
Electronic Resource
Chinese
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