基于模糊控制的混合动力电动汽车再生制动控制策略研究

Research on Regenerative Braking Control Strategy of Hybrid Electric Vehicle based on Fuzzy Control

科学分析了ECE制动政策法规,为了实现制动力的合理分配,设计模糊控制器,该控制器的输入参数包括制动强度z、电池荷电状态SOC和车速v,而输出参数则是制动能量回收比例系数K。建立了基于模糊控制的制动能量回收控制策略的仿真模型并仿真,结果显示,设计的控制策略可以确保车辆的制动稳定性,并使车辆在制动过程中回收较多能量。

ECE braking policies and regulations are scientifically analyzed.In order to realize the reasonable distribution of braking force,a fuzzy controller is designed.The input parameters include braking intensity z,battery state of charge SOC,and vehicle speed v,and the output parameter is the proportion coefficient of braking energy recovery K.A fuzzy-control based braking energy recovery control strategy is established as a simulation model and simulated,and the results show that the designed control strategy can ensure the braking stability of the vehicle and enable the vehicle to recover more energy during braking.