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International Journal of Automotive Technology

, Volume 20, Issue 5, pp 1023–1032 | Cite as

Performance Analysis of a Novel Self-excited, Liquid-cooled, and Bridge Integrated Electromagnetic Retarder for Heavy Vehicles with Trailer

  • Wenguang Guo
  • Desheng Li
  • Lezhi YeEmail author
  • Zhiwei Gao
  • Kai Zhang
Article
  • 5 Downloads

Abstract

To overcome the large power consumption, the braking torque heat recession, and installation difficulties for trailers of eddy current retarder (ECR), a novel self-excited, liquid-cooled, and bridge integrated retarder (SLB-EMR) is proposed in this paper. The structure and work principle of the SLB-EMR are described particularly. Based on the magnetic equivalent circuit (MEC) method, an analytical model of the eddy current braking torque considering magnetic flux leakage and end effect is established. The power generation and braking performance of the SLB-EMR are predicted by the finite element analysis (FEA). We carried out tests for the eddy current braking torque, the heat-fade of braking torque, the no-load loss torque, and natural characteristics of the SLB-EMR respectively. The test results showed that the eddy current braking torque reached 2592 N·m at 1000 r/min. The braking torque declined by 15.5 % after the braking 12 min continuously. The analytical model of eddy current braking torque, and FEA model of the generator and eddy current brake were verified by the test. Compared with the ECR, the SLB-EMR had no-power consumption and low head-fade.

Key words

Eddy current braking Magnetic equivalent circuit (MEC) Liquid-cooled Self-excited 

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Notes

Acknowledgement

The authors acknowledge the financial support from the National Natural Science Foundation of China under Project 51777003, the National Natural Science Foundation of China under Project 51741701 and Beijing Natural Science Foundation under Project 3182007.

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Copyright information

© KSAE 2019

Authors and Affiliations

  • Wenguang Guo
    • 1
  • Desheng Li
    • 1
  • Lezhi Ye
    • 1
    Email author
  • Zhiwei Gao
    • 1
  • Kai Zhang
    • 1
  1. 1.College of Mechanical Engineering and Applied Electronic TechnologyBeijing University of TechnologyBeijingChina

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