电动轮采用安装在车轮内部的轮毂电机直接驱动汽车行驶，实现了驱动转矩与电制动转矩独立可控。针对目前电动轮汽车的系统耦合程度高、轮毂电机匹配复杂等问题，提出了一种转矩矢量控制系统（TVCS），其结构与整车其他系统相互独立，构成电动轮汽车的动力总成。设计了转矩矢量控制系统的网络拓扑结构及矢量控制器的软硬件架构。通过对原型车底盘系统的设计与校核，获得了搭载转矩矢量控制系统的电动轮汽车试验平台。实车单移线试验结果表明：转矩矢量控制系统能有效保证整车通信负载率，便于轮毂电机集成；试验车实现了基本功能，为转矩矢量控制算法的研发与优化提供了测试平台。
In-wheel motor driven vehicles are powered directly by in-wheel motors installed inside the wheel which provide independent control of the driving and electrical braking torque. This paper presents a torque vectoring control system (TVCS) to improve the coupling and complex matching of the in-wheel motors. This system is independent of other systems in the vehicle and, thus, is a power assembly for electric vehicles. The paper describes the TVCS network topology and the software and hardware architecture of the torque vectoring controller. An in-wheel motor driven vehicle was built equipped with TVCS with the single-lane change test showing that the TVCS can effectively lower communication load rates and facilitate integration of the in-wheel motors. The test vehicle provides the basic system functions in a test platform for development and optimization of the torque vectoring control algorithm.
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