FSAE电动赛车再生制动系统开发

Design on regenerative braking system for FSAE racing car

为提高大学生方程式(FSAE)纯电动赛车耐久赛成绩,开发一套适用于FSAE电动赛车的再生制动系统.对ADVISOR软件二次开发,通过修改整车模型、车轮模型、驱动控制模型及电池模型等,建立适用于FSAE纯电动赛车的仿真平台;为保证再生制动系统的稳定性,降低赛车控制器和传感器精度对系统的影响,提出一种后轴并联制动力分配控制策略,并进行了耐久赛工况分析;对再生制动系统控制器进行软硬件开发,并进行实车试验.仿真及试验中再生制动能量回收率分别达到20.89%和19.07%,所设计的再生制动系统可有效回收FSAE纯电动赛车的制动能量,提高耐久赛成绩.

To improve the performance of FSAE（ Formula SAE） electric racing car in the endurance race,a whole regenerative braking system was designed accordingly. Firstly,the simulation software ADVISOR was redeveloped and the vehicle model,wheel model,driving control model and battery model were modified. Secondly,to ensure the system stability and reduce the influences of controller and sensor accuracy,a rear-wheel parallel control strategy of regenerative braking system was proposed and the simulation of this control strategy was complimented in ADVISOR. Thirdly,the regenerative braking system controller was designed and racing car trials were carried out.The results showed that in the simulations and trials,the regenerating efficiencies were 20. 89% and 19. 07%respectively. The regenerative braking system with the rear-wheel parallel control strategy could improve the performance of FSAE racing car effectively.