基于矢量控制的纯电动汽车电机控制器的研制

摘要

设计了针对纯电动汽车开发的一款5kW电机控制器.硬件设计上采用低电压、大电流的MOSFET并联技术,以高性价比的ARM核CPU为主控单元;软件设计上以高性能的电流矢量控制来实现对交流异步电机的精准控制,并加入整车控制逻辑;具有成本低、工艺简单、可靠性高、可以实现批量生产的特点.目前通过实验充分验证了其实用性和可靠性,并已实现批量生产.%This paper presents the design of a 5 kW motor controller developed for blade electric vehicles.In the respect of hardware design,the controller adopts MOSFET parallel technology of low voltage and high current,using CPU with high price/performance ratio ARM as its core.As for its software design,high-performance current vector control is used to achieve accurate control over the asynchronous AC motor,and vehicle control logic is provided in addition.It is characterized through low cost,simple processing,high reliability and mass production ability.Experimental results have verified its practicality and reliability,and mass production has been realized.