The invention relates to a distributed driving electric vehicle driving system control method based on a failure state. The control method comprises the steps that the failure condition of the distributed driving electric vehicle driving system is subjected to classification research; the failure is divided into four types according to the failure condition of a driving motor on a driving wheel; acorresponding failure torque redistribution control strategy is designed for the four failure modes, meanwhile, a distributed driving electric vehicle motor control layer structure in a failure stateis designed, and the control layer structure comprises a linear two-degree-of-freedom model, a speed controller and a driving torque controller. According to the failure classification method provided by the invention, more failure conditions can be considered, the drivable capacity of the vehicle is greatly improved, the torque redistribution control strategy designed for the failure modes can ensure the stability and dynamic property of the vehicle, the drivable capacity of the vehicle can be improved, and the effectiveness of the failure control strategy is verified.
本发明涉及一种基于失效状态的分布式驱动电动汽车驱动系统控制方法,该控制方法包括:对分布式驱动电动汽车驱动系统的失效情况进行分类研究,依据驱动轮上的驱动电机失效情况将失效分为四类,针对这四类失效模式设计相应的失效转矩再分配控制策略,同时设计失效状态的分布式驱动电动汽车电机控制层结构,控制层结构包括线性二自由度模型、速度控制器和驱动力矩控制器。本发明提出的失效分类方法能够考虑更多失效情况,大幅提升车辆的可行驶能力,针对失效模式设计的转矩再分配控制策略能够保证车辆的稳定性和动力性,可提高车辆的可行驶能力,验证了失效控制策略的有效性。
Distributed driving electric vehicle driving system control method based on failure state
基于失效状态的分布式驱动电动汽车驱动系统控制方法
09.10.2020
Patent
Elektronische Ressource
Chinesisch
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