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http://dx.doi.org/10.22680/kasa2020.12.2.021

Anti-lock Braking System for Commercial Vehicles with Pneumatic Brake System by Using Slip Ratio  

Kim, Jayu (서울대학교 차량 동역학 및 제어 연구실)
Kwon, Baeksoon (서울대학교 차량 동역학 및 제어 연구실)
Yi, Kyongsu (서울대학교 기계항공공학부)
Publication Information
Journal of Auto-vehicle Safety Association / v.12, no.2, 2020 , pp. 21-26 More about this Journal
Abstract
This paper presents an anti-lock braking system for commercial vehicles with pneumatic brake system by using slip ratio. By virtue of system reliability, most commercial vehicles adopt pneumatic brake system. However, pneumatic brake systems control is more difficult than hydraulic systems due to a longer time delay and the system nonlinearity. One of the major factors in generating braking forces is the wheel slip ratio. Accordingly, the proposed ABS strategy employs the slip ratio threshold-based valve on/off control. This threshold-based algorithm is simple but effective to control the pneumatic brake systems. The control performance of the proposed algorithm has been validated via simulation studies using MATLAB/Simulink and Trucksim. The results show ABS by using slip ratio reduces the braking distance and improves vehicle control.
Keywords
Anti-lock braking system; Slip ratio; Pneumatic brake; Commercial vehicle;
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