摘要
为了实现再生制动力与机械制动力在驱动轮和从动轮之间的优化分配,在保证车辆制动安全的同时提高能量回收效率,将汽车理想制动力分配I曲线与模糊算法相结合,提出一种基于模糊控制的电动汽车机电复合制动力分配策略。设计了电动汽车再生制动力分配模糊控制器,根据车辆工况与理想制动力分配I曲线,计算前后轮上分别应加载的机电复合制动力大小。建立了电动汽车制动系统动力学仿真模型,在此基础上进行仿真分析。最后利用Advisor仿真软件对该分配策略进行回收能量效率测试。结果表明,该分配策略既能保证汽车前后轮的制动力分配按照理想制动力I曲线分布,确保汽车的制动安全;又能有效地实现再生制动能量回收,提高电动汽车的续驶里程。
According to the characteristics of electric vehicle braking performance, to guarantee braking performance and enhance ener- gy recovery efficiency, a electric vehicle braking system distribution strategy is provided, which combines fuzzy algorithm with ideal braking force distribution strategy. A vehicle braking dynamics simulation model is established to test the braking performance, and ADVI- SOR software is used to test energy recovery efficiency. The results show that the control strategy can not only ensure the distribution of mechanical and electrical compound braking force on front wheel and back wheel following the ideal braking force distribution curve so that a good braking performance was assured but also realize the recovery of the braking energy for electric vehicle effectively.
出处
《控制工程》
CSCD
北大核心
2014年第3期347-351,356,共6页
Control Engineering of China
基金
国家863计划项目(2012AA111004
2012AA112312)
国家自然科学基金项目(61175075)
关键词
电动汽车
模糊控制
再生制动
制动力分配
能量回收
electric vehicle
fuzzy control
regenerative braking
braking force distribution
energy recovery
