Journal of South China University of Technology (Natural Science Edition) ›› 2014, Vol. 42 ›› Issue (4): 137-142,148.doi: 10.3969/j.issn.1000-565X.2014.04.021

• Automotive Engineering • Previous Articles     Next Articles

Simulation of Coordinated Control of Braking Torque for Braking Energy Recovery System

Chu Liang1 Wang Yan- bo1 Yao Liang2 Zhang Yong- sheng2 Wei Wen- ruo2   

  1. 1.State Key Laboratory of Automotive Dynamic Simulation and Control,Jilin University,Changchun 130022,Jilin,China;2.R&D Center,China FAW Group Corporation,Changchun 130011,Jilin,China
  • Received:2013-08-18 Revised:2013-12-29 Online:2014-04-25 Published:2014-03-03
  • Contact: 王彦波(1986-)，男，博士生，主要从事节能与新能源汽车研究 E-mail:wyb-08@163.com
  • About author:初亮(1967-)，男，教授，博士生导师，主要从事节能与新能源汽车研究．E-mail:chuliang@jlu．edu．cn
  • Supported by:

    国家 “863” 计划资助项目(2012AA110903);高等学校博士学科点专项科研基金资助项目(20110061130003)

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Abstract:

The detection of drivers' braking tendency and the coordinated control of braking torque between hydrau-lic and motor braking systems are two key technologies for the development of a braking energy recovery system.Ai-ming at these two technologies,the parameters characterizing drivers' braking demand are acquired by analyzing thecharacteristic test data,and a first- order hysteresis filtering method with adaptively- corrected filtering time factor isadopted to calculate the braking demand based on the pressure of master cylinder.Then,the hardware constructionmodel of hydraulic braking system is established with Matlab/Simulink,and the coordinated control of motor andhydraulic braking torques is implemented via the proportional distribution of braking force.Finally,the target pre-ssure is achieved via deviation control.Simulated results show that the proposed method helps to obtain accuratebraking demand of drivers,achieve coordinated braking force control and ensure smooth braking intensity.

Key words: vehicle engineering, braking energy recovery system, braking torque, coordinated control, brakingdemand