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| Research on a Brake Temperature Model of Heavy-duty Trucks Braking on Long Downhill |
| WANG Zhi-xin1,2, YU Qiang2, HAN Fei3, SHI Pei-long2 |
1. Gansu Vocational and Technical College of Communications, Lanzhou Gansu 730070, China;
2. School of Automobile, Chang'an University, Xi'an Shaanxi 710064, China;
3. CCCC First Highway Consultants Co., Ltd., Xi'an Shaanxi 710075, China |
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Abstract In the downhill braking process, the high temperature of the service brake of heavy-duty trucks can lead to braking failure. To solve this problem, a brake heating model for heavy-duty trucks equipped with auxiliary brake systems is investigated. On the basis of coasting test, engine braking test, exhaust braking test, and eddy current retarder braking test, the model is established according to vehicle dynamics theory, energy conversion principle, and energy dissipation principle. Road tests are conducted to verify the accuracy of the model. Results demonstrate that the model accurately reflects the heating characteristics of the brake. Using this model to predict the brake temperature in different combined brake conditions is important to prevent traffic accidents caused by heat fading.
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Received: 26 February 2016
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| Fund:Supported by the Youth Program of National Natural Science Fund (No. 51507013); the Science and Technology Plan Projects in Gansu Province (No. 1504FKCA001); the Central University Fund Project (No. 310822151025), and the Central University Special Funding for Basic Scientific Research Business Expenses (No.310822161115) |
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Corresponding Authors:
WANG Zhi-xin,E-mail address:wzxin851@163.com
E-mail: wzxin851@163.com
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2016, Vol. 10 
