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Hydraulic Control of Integrated Electronic Hydraulic Brake System Based on LuGre Friction Model
ISSN: 0148-7191, e-ISSN: 2688-3627
Published September 17, 2017 by SAE International in United States
This content contains downloadable datasetsAnnotation ability available
In this paper, an integrated electronic hydraulic brake(I-EHB) system is introduced, which is mainly composed of a motor, a worm gear, a worm, a gear, a rack etc. The friction leads the system to the creeping phenomenon and the dead zone. These phenomenon seriously affect the response speed and the hydraulic pressure control .In order to realize the accurate hydraulic pressure control of I-EHB system, a new friction compensation control method is proposed based on LuGre dynamic friction model. And the theoretical design of adaptive control method is designed based on the feedback of the master cylinder pressure and the operating state of the system. Then the stability of the control method is proved by Lyapunov theorem. A co-simulation model is built with Matlab/Simulink and AMESim, so as to prove the validity of the control method. Related experiments are carried out to track the different target signals, which is step signal, (different amplitude and frequency) sine wave signal and Artemis signal. Compared with the test result with PID control method or compensation control method based on static friction model, this method based on LuGre dynamic friction model has a definite improvement, which has advantages in dynamic control error. The maximum dynamic control error at low frequency with this method is less than 1 bar and the RMS of error is about 0.2 bar. Therefore this method is an effective way to control the I-EHB system.
CitationLi, H., Yu, Z., Xiong, L., and Han, W., "Hydraulic Control of Integrated Electronic Hydraulic Brake System Based on LuGre Friction Model," SAE Technical Paper 2017-01-2513, 2017, https://doi.org/10.4271/2017-01-2513.
Data Sets - Support Documents
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