ABS Control of Electronic Mechanical Braking System Based on Integral Sliding Mode

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ABS Control of Electronic Mechanical Braking System Based on Integral Sliding Mode

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[1]LUO Shi,LIU Yanguang,YU Jingsheng,et al.ABS Control of Electronic Mechanical Braking System Based on Integral Sliding Mode[J].Journal of Zhengzhou University (Engineering Science),2024,45(01):34-39.[doi:10.13705/j.issn.1671-6833.2023.04.009]

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Journal of Zhengzhou University (Engineering Science)[ISSN 1671-6833/CN 41-1339/T] Volume: 45 Number of periods: 2024 01 Page number: 34-39 Column: Public date: 2024-01-19

Title:: ABS Control of Electronic Mechanical Braking System Based on Integral Sliding Mode

Author(s):: LUO Shi; LIU Yanguang; YU Jingsheng; LI Ling′en; DING Hua; School of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang 212013, China

Keywords:: electronic mechanical braking; road identification; peak adhesion coefficient; ABS; integral sliding mode

CLC:: -

DOI:: 10.13705/j.issn.1671-6833.2023.04.009

Abstract:: In order to solve the disadvantages of traditional brake system logic threshold control, which was complicated in logic and difficult to make full use of road adhesion, and the problems of nonlinearity and uncertainty of ABS, a control strategy of ABS based on road identification on the basis of electronic mechanical braking system was proposed. Firstly, quarter vehicle braking model was established through Simulink. Next, the differences of adhesion coefficient on different road conditions and the variation rules of adhesion coefficient and wheel angle deceleration were analyzed. An efficient and accurate road identification algorithm was designed to estimate the optimal slip rate of the current road surface. Finally, an ABS control strategy based on integral sliding mode control was designed to track the optimal slip rate. The simulation results showed that the road identification algorithm had fast response and high accuracy. The designed ABS control strategy could stably track the optimal slip rate and had strong adaptability to different road conditions. Compared with the traditional braking system based on logical threshold control, on single road condition the braking time was reduced by 11. 89%, and the braking distance was shortened by 12. 7%. On variable road condition the braking time was reduced by 17. 8%, and the braking distance was shortened by 19. 9%.

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Last Update: 2024-01-24