重型商用汽车长下坡制动器升温模型研究

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摘要 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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	王志新
	余强
	韩非
	史培龙

关键词 ： vehicle engineering, service brake, auxiliary braking tests, combined brake, temperature model

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.

Key words： vehicle engineering service brake auxiliary braking tests combined brake temperature model

收稿日期: 2016-02-26

基金资助: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)

通讯作者: WANG Zhi-xin,E-mail address:wzxin851@163.com E-mail: wzxin851@163.com

引用本文:

王志新, 余强, 韩非, 史培龙. 重型商用汽车长下坡制动器升温模型研究[J]. Journal of Highway and Transportation Research and Development, 2016, 10(3): 90-96.
WANG Zhi-xin, YU Qiang, HAN Fei, SHI Pei-long. Research on a Brake Temperature Model of Heavy-duty Trucks Braking on Long Downhill. Journal of Highway and Transportation Research and Development, 2016, 10(3): 90-96.

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http://manu27.magtech.com.cn/Jwk_gljtkj_en/CN/ 或 http://manu27.magtech.com.cn/Jwk_gljtkj_en/CN/Y2016/V10/I3/90

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