一款48 V BSG电机控制器开发与验证

Development and Verification of a 48 V BSG Motor Controller

针对轻型混合动力汽车开发了一款48 V带传动一体化起/发电机(BSG)电机控制器。阐述了该控制器的总体设计方案,对BSG电机控制器的结构、硬件、软件进行了分析,提出了基于功率MOSFET模块的风冷电机控制器设计方案,并对风冷散热板进行了热仿真,研究了MOSFET模块散热效果。最后,对试验样机进行了台架测试,由测试结果可以看出,所设计48 V BSG电机控制器具有良好的控制效果。

A 48 V belt driven starter generator(BSG)motor controller for mild hybrid vehicle is developed.The overall principle diagram of electrical design is described.The structure and hardware scheme of the 48 V BSG motor controller are analyzed in detail.A design scheme of 48 V BSG motor controller based on the MOSFET module is proposed.The thermal simulation of the heat dissipation baseplate is carried out to study its heat dissipation effect on MOSFET module.Finally,the bench test of the 48 V BSG motor controller prototype is carried out.The test results show that the 48 V BSG motor controller has a good control performance.