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Study on Anti-lock Braking System Controller Based on Self-optimalizing Control

Author: GaoXiaoLi
Tutor: LiWenJuan
School: Harbin University of Science and Technology
Course: Power Electronics and Power Drives
Keywords: ABS Look for optimal Controller Bench
CLC: U463.526
Type: Master's thesis
Year: 2010
Downloads: 46
Quote: 0
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Abstract


With the advances in vehicle technology and improved vehicle speed , the vehicle's braking system plays an increasingly important role in terms of security . Active safety devices , one as a new type of automobile anti-lock braking system ( ABS ) , and its main function is in the vehicle emergency braking to prevent the wheels from locking phenomenon occurs , which can effectively improve the car 's braking stability , reduce traffic the accident rate . The research not only the development of the real vehicle test cycle is long , and consume large amounts of human, financial and material resources , the ABS controller simulation study and experiment station research is even more important . Control algorithm as the core technology is the key to the whole research has important practical significance to the improvement of vehicle braking performance . Auto ABS status quo at home and abroad were reviewed , elaborated from three angles of the theory , simulation , experimental research status of ABS . The look for the principle of optimal control and ABS system . MATLAB / Simulink environment based on the stress analysis of automotive brake wheel single wheel semi-truck tires and other modules of the simulation model , and find their optimal controller is designed according to the principle of self- seeking optimal control . Then the ABS system to simulate different road , look for the optimal control policy is applied in the ABS system , can make the wheel speed good track speed dropped , the running direction of the system to stabilize seen from the simulation results . The logic threshold control algorithm simulation , will look for the optimal control method and logic threshold control algorithm simulation results of a detailed comparative analysis . Get through the simulation waveform simulation parameters as well as the comparison of the quantitative point of view on the MFDD indicators , look for the optimal control strategies braking performance and brake efficiency is superior to the traditional logic threshold control method . The paper also half - car model of the rear-wheel drive model simulation , the simulation results show that the rear wheel speed greater jitter . Finally, application the pneumatic ABS function simulation experiment station part of the experiment . Including controller design , the detection and processing of wheel speed , eight-way solenoid valve drive , and preliminary design of the bench in the software process . The experimental results laid the foundation for further overall experimental .

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CLC: > Transportation > Road transport > Automotive Engineering > Automotive structural components > Braking system > Brake control device > Anti-lock brake
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