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HE Ren, ZHAO Qiang, HU Dong-hai. Optimization method of frictional braking force distribution for integrated system of electromagnetic and frictional braking of car[J]. Journal of Traffic and Transportation Engineering, 2015, 15(1): 66-73. doi: 10.19818/j.cnki.1671-1637.2015.01.009
Citation: HE Ren, ZHAO Qiang, HU Dong-hai. Optimization method of frictional braking force distribution for integrated system of electromagnetic and frictional braking of car[J]. Journal of Traffic and Transportation Engineering, 2015, 15(1): 66-73. doi: 10.19818/j.cnki.1671-1637.2015.01.009
shu

Optimization method of frictional braking force distribution for integrated system of electromagnetic and frictional braking of car

doi: 10.19818/j.cnki.1671-1637.2015.01.009

  • School of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China

More Information
  • Author Bio:

    HE Ren(1962-), male, professor, PhD, +86-51 1-88791872, heren@mail.ujs.edu.cn

  • Received Date: 2014-09-17
  • Publish Date: 2015-02-25
    Abstract
  • The structure and working principle of integrated system of the electromagnetic and frictional braking for car were analyzed.The calculation formula of utilization adhesion coefficient for front and rear axles was derived.The ECE R13 braking regulation and the design requirement of electromagnetic braking were taken as constraint conditions, the minimum square sum of differences between the actual curve of utilization adhesion coefficient and the braking strength of ideal condition for front and rear axles was taken as objective function, MATLAB optimization toolbox was employed, the optimization method of frictional braking force distribution for the integrated system of electromagnetic and frictional braking was established, and the optimal values of frictional braking force distribution under different conditions were calculated.Calculation result indicates when the braking strength is 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8respectively, the value of objective function before optimization is 0.03, 0.05, 0.07, 0.07, 0.08, 0.07, 0.06, 0.04 respectively, while the value of objective function after optimization is 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.01, 0.01 respectively.After optimization, the values of objective function reduce obviously, the curve of utilization adhesion coefficient for front and rearaxles is close to the ideal curve and is below the control curve of ECE R13 braking regulation, so the proposed optimization method satisfies the requirement of ECE R13 braking regulation, and the braking stability of car also improves.

     

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    • References(33)
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