电动汽车再生制动控制器的开发

Development of Regenerative Braking Controller of Electric Vehicle

提出了利用超级电容作为储能元件实现电动汽车再生制动的能量回收方案,针对TI公司生产的TMSLF24-0XDSP,应用脉宽调制PWM控制技术,设计了电动汽车超级电容再生制动系统控制器。介绍了电动汽车再生制动控制器的数字信号处理器DSP及其外围电路、故障信号处理电路、输出隔离电路与滤波电路,以及用C语言编写的各工作模块。调试试验结果表明,当负载突变和充电电流突变时,模糊PID控制策略的再生制动控制器在响应快速性、鲁棒性和自适应性方面效果良好,从而验证了系统的软硬件设计能够很好地回收电动汽车再生制动能量。由于软硬件采用了模块化设计,通用性好、灵活性强,可作为开发平台,应用于多种控制器的设计。

The energy reclaiming scheme by using the super capacitor as energy storage element to realize the regenerative braking of electric vehicles was put forward.A kind of super capacitor regenerative braking controller of electric vehicle based on pulse-width modulation and TMSLF240XDSP was designed.Digital signal processor as well as its external circuit,fault signal processing circuit,output isolation circuit,filter circuit,and each work module written with C language were introduced.The test result indicates that the regenerative braking controller based on fuzzy PID theory has better performance of response rapidity,robustness and self-adaptability when load and charge current change suddenly.Thus software and hardware design of the system was confirmed to be able to recycle the electric automobile electric regenerative braking energy well.The system has certain commutability,high flexibility and good expanding characteristic because the hardware-software has used the modular design.It can be taken as a developing platform applied to many kinds of controller's designs.