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汽车安全与节能学报

JASE ›› 2016, Vol. 07 ›› Issue (03): 305-312.DOI: 10.3969/j.issn.1674-8484.2016.03.009

• 汽车节能与环保 • 上一篇    下一篇

一种制动能量回收系统以及基于状态切换的优化控制构架( 英文)

Samir SACI1，张俊智1,2   

  1. 1. 清华大学 汽车安全与节能国家重点实验室，北京 100084，中国；
    2. 北京电动车辆协同创新中心，北京 100081，中国
  • 收稿日期:2016-01-08 出版日期:2016-09-25 发布日期:2016-09-30
  • 作者简介:第一作者 / First author ： SACI Samir(1991—)，男/male，法国/France，硕士研究生/ Master student in Tsinghua University, Doubledegree student from Ecole Centrale de Lille, France (4+4 program)，E-mail: wei-j14@mails.tsinghua.edu.cn, s.saci9s@gmail.com 第二作者 / Second author ： ZHANG Junzhi/ 张俊智 (1969—)，男/male，中国/China，教授/Professor. E-mail : jzhzhang@tsinghua.edu.cn
  • 基金资助:

    中国国家自然科学基金资助项目/ the Natural Science Foundation of China(51475253) ；国家科技支撑计划项目/ National Key Technology Research and Development Program of the Ministry of Science and Technology of China(2013BAG08B01)

Optimal Control Plant for Switch-Mode Architecture of a Regenerative Braking System

Samir SACI1, ZHANG Junzhi 1,2   

  1. 1. State Key Lab of Automotive Energy and Safety, Tsinghua University, Beijing 100084, China;
    2. Collaborative Innovation Center of Electric Vehicles in Beijing, Beijing, 100081, China
  • Received:2016-01-08 Online:2016-09-25 Published:2016-09-30

摘要：

由于电机转矩有限，通常在制动过程中需要对回馈力矩和液压制动力矩进行协调控制才能满足驾驶员的制动意图。但是现有控制策略通常通过牺牲能量回馈效率以保证制动的安全与舒适性。本文提出了一种基于状态切换方法计算控制指令的制动能量回收控制构架。该系统通过离合器、弹性连接轴和制动器将车辆和电机进行耦合，控制算法受DC-DC 升压器控制的启发，通过变化的PWM信号控制离合器的结合与断开以优化制动舒适性和能量回收效率。在Matlab/Simulink 中建立了仿真模型并通过仿真对所提出算法进行了验证，结果表明：所提出能量回收系统和算法在保证回馈制动力矩平稳输出的前提下优化了能量回收效率。

关键词: 电驱动车辆 (EV) , 能量回收系统 (RBS) , 优化控制

Abstract:

The limited torque capacity of the electric motor (EM) is a major concern for regenerative braking systems (RBS). Therefore, several strategies have been designed to coordinate the electric motor (EM) and hydraulic friction brake (HFB). However, these strategies drastically decrease the amount of energy recovered per braking to ensure braking safety and comfort. An optimal control plant was designed to calculate the duty ratio using the mathematical model of the switch-mode architecture. The design inherited from an analogy of the DC-DC booster used a clutch, a torsion spring and a brake actuator to couple the vehicle and the EM. Like for the DC-DC booster, a variating duty ratio was used to modulate the braking torque while optimizing the energy recovered. The model was built in Matlab/Simulink with the algorithm being testified by simulation. The results show a more stable output torque while conserving high regeneration performance.

Key words: electric vehicles (EV), regenerative braking systems (RBS), optimal control