|Table of Contents|

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

《交通运输工程学报》[ISSN:1671-1637/CN:61-1369/U]

Issue:
2015年01期
Page:
66-73
Research Field:
载运工具运用工程
Publishing date:

Info

Title:
Optimization method of frictional braking force distribution for integrated system of electromagnetic and frictional braking of car
Author(s):
HE Ren ZHAO Qiang HU Dong-hai
School of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China
Keywords:
automobile engineering braking force distribution electromagnetic braking frictional braking integrated system optimization method
PACS:
U463.5
DOI:
-
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, 0.8 respectively, 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 rear axles 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. 2 tabs, 6 figs, 33 refs.

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Last Update: 2015-02-25