Welcome to Journal of Automotive Safety and Energy,
汽车安全与节能学报

Journal of Automotive Safety and Energy ›› 2011, Vol. 2 ›› Issue (3): 198-205.DOI: 10.3969/j.issn.1674-8484.2011.03.003

• Automotive Safety • Previous Articles     Next Articles

Experimental Investigation on Pressure Gradient of Automotive Hydraulic Anti-lock Braking Systems

MA Mingxing 1, HUANG Jinchuan 2, XU Guomin 1, GUAN Yancai 1   

  1. （1.  School of Mechanical Engineering, Yangzhou University, Yangzhou 225127, China;
    2. State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China）
  • Received:2010-10-27 Online:2011-09-27 Published:2011-10-13
  • Contact: 第一作者 / First author： 马明星/ MA Mingxing（1974—），男（汉），安徽，副教授。E-mail: Mamingxing@yzu.edu.cn E-mail: Mamingxing@yzu.edu.cn
  • About author:第一作者 / First author： 马明星/ MA Mingxing（1974—），男（汉），安徽，副教授。E-mail: Mamingxing@yzu.edu.cn
  • Supported by:

    the Science Fund of State Key Laboratory of Automotive Safety and Energy （KF11152）；Foundation of State Key Laboratory of Automotive Dynamic Simulation （20091113）

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Abstract:  The pressure gradient of the anti-lock braking system (ABS) was experimentally studied using an ABS hydraulic test bench for various conditions including normal brake, on-off brake, and step brake. The pressure gradient was analyzed with the master cylinder pressure and solenoid step pulse width being changed. The results show that for the normal brake, on-off brake, and step brake conditions, the pressure gradient achieves the maximum limit with the master cylinder pressure of 8, 12 and 15 MPa, respectively. The pressure gradient for the pressurization and decompression steps in the pulse width significantly increases with increasing master cylinder pressure. The results provide an important experimental reference for fine-tuning and precise theoretical modelling of ABS wheel cylinder pressure.

Key words: automotive safety technology, anti-lock braking system (ABS), ressure gradient, ccurate  adjustment, evaluation parameters

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