摘要
提出一种基于工况特征分析的单加速踏板再生制动控制策略.通过分析驾驶员在不同工况下的加速踏板操作统计规律,将加速踏板行程分为高速、市区、滑行3段,并实施不同的控制逻辑.针对市区制动工况,在模糊控制器得到的基础制动转矩基础上,采用模型预测控制算法,依据短期时域预测工况对其进行修正;针对滑行制动工况,以再生制动力矩模拟发动机倒拖制动.仿真结果表明,该策略工况跟随情况良好,制动踏板使用频率降低,制动能量回收率提高.
A single accelerator pedal regenerative braking control strategy based on analysis of working conditions is proposed.This paper analyzes the statistics of the driver′s accelerator pedal operation under different working conditions,divides the accelerator pedal stroke into three sections:high speed,urban area,and coasting,and implements different control logics.For urban braking conditions,based on the basic braking torque obtained by the fuzzy controller,the model predictive control algorithm is used to correct it according to the short-term time domain prediction conditions;For coasting braking conditions,the regenerative braking torque is used to simulate engine reverse braking with regenerative braking torque.The simulation results show that the working conditions of this strategy follow well,the frequency of the brake pedal is reduced,and the braking energy recovery rate is improved.
作者
何洪文
楼金彪
HE Hongwen;LOU Jinbiao(School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081,China)
出处
《车辆与动力技术》
2022年第2期1-6,共6页
Vehicle & Power Technology
基金
国家重点研发计划资助课题(2017YFB0103701)。
关键词
单加速踏板再生制动
工况
模糊控制
模型预测控制
single accelerator pedal regenerative braking
working conditions
fuzzy control
model predictive control
