Target Oil Pressure Recognition Algorithm for Oil Pressure Following Control of Electronic Assisted Brake System

The vehicle dynamics model has multiple degrees of freedom, with strong nonlinear characteristics, so it is difficult to quickly obtain the accurate target oil pressure of an electronically assisted brake system based on the model. This paper proposes a target oil pressure recognition algorithm base...

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Main Authors: Lei Chen, Yunchen Yu, Jie Luo, Zhongpeng Xu
Format: Article
Language:English
Published: MDPI AG 2023-01-01
Series:Machines
Subjects:
Online Access:https://www.mdpi.com/2075-1702/11/2/183
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author Lei Chen
Yunchen Yu
Jie Luo
Zhongpeng Xu
author_facet Lei Chen
Yunchen Yu
Jie Luo
Zhongpeng Xu
author_sort Lei Chen
collection DOAJ
description The vehicle dynamics model has multiple degrees of freedom, with strong nonlinear characteristics, so it is difficult to quickly obtain the accurate target oil pressure of an electronically assisted brake system based on the model. This paper proposes a target oil pressure recognition algorithm based on the T-S fuzzy neural network model. Firstly, the braking conditions classification algorithm is built according to the sampled braking intention data. The data are divided into the emergency braking condition data and the general braking condition data by the braking conditions classification algorithm. Secondly, the recognition model is trained respectively by the different braking condition data sets. In the training process, the fuzzy C-means clustering algorithm is used to identify the antecedent parameters of the model, and the learning rate cosine attenuation strategy is applied to optimize the parameter learning process. Finally, a correction method of target oil pressure based on slip ratio is proposed, and the target oil pressure derived following control methods based on traditional PID and fuzzy PID are compared through experiments. The results show that the mean square error of oil pressure following control based on fuzzy PID is smaller, which proves that the proposed method is able to precisely control braking force.
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spelling doaj.art-0072dfcd9fcf4ba897cda40e14d8c8682023-11-16T21:45:01ZengMDPI AGMachines2075-17022023-01-0111218310.3390/machines11020183Target Oil Pressure Recognition Algorithm for Oil Pressure Following Control of Electronic Assisted Brake SystemLei Chen0Yunchen Yu1Jie Luo2Zhongpeng Xu3School of Mechanical and Electrical Engineering, Wuhan University of Technology, Wuhan 430070, ChinaSchool of Mechanical and Electrical Engineering, Wuhan University of Technology, Wuhan 430070, ChinaSchool of Automation, Wuhan University of Technology, Wuhan 430070, ChinaSchool of Mechanical and Electrical Engineering, Wuhan University of Technology, Wuhan 430070, ChinaThe vehicle dynamics model has multiple degrees of freedom, with strong nonlinear characteristics, so it is difficult to quickly obtain the accurate target oil pressure of an electronically assisted brake system based on the model. This paper proposes a target oil pressure recognition algorithm based on the T-S fuzzy neural network model. Firstly, the braking conditions classification algorithm is built according to the sampled braking intention data. The data are divided into the emergency braking condition data and the general braking condition data by the braking conditions classification algorithm. Secondly, the recognition model is trained respectively by the different braking condition data sets. In the training process, the fuzzy C-means clustering algorithm is used to identify the antecedent parameters of the model, and the learning rate cosine attenuation strategy is applied to optimize the parameter learning process. Finally, a correction method of target oil pressure based on slip ratio is proposed, and the target oil pressure derived following control methods based on traditional PID and fuzzy PID are compared through experiments. The results show that the mean square error of oil pressure following control based on fuzzy PID is smaller, which proves that the proposed method is able to precisely control braking force.https://www.mdpi.com/2075-1702/11/2/183electronically assisted brake systemT-S fuzzy neural networklearning rate cosine attenuation strategyF = fuzzy PID controltarget oil pressure
spellingShingle Lei Chen
Yunchen Yu
Jie Luo
Zhongpeng Xu
Target Oil Pressure Recognition Algorithm for Oil Pressure Following Control of Electronic Assisted Brake System
Machines
electronically assisted brake system
T-S fuzzy neural network
learning rate cosine attenuation strategy
F = fuzzy PID control
target oil pressure
title Target Oil Pressure Recognition Algorithm for Oil Pressure Following Control of Electronic Assisted Brake System
title_full Target Oil Pressure Recognition Algorithm for Oil Pressure Following Control of Electronic Assisted Brake System
title_fullStr Target Oil Pressure Recognition Algorithm for Oil Pressure Following Control of Electronic Assisted Brake System
title_full_unstemmed Target Oil Pressure Recognition Algorithm for Oil Pressure Following Control of Electronic Assisted Brake System
title_short Target Oil Pressure Recognition Algorithm for Oil Pressure Following Control of Electronic Assisted Brake System
title_sort target oil pressure recognition algorithm for oil pressure following control of electronic assisted brake system
topic electronically assisted brake system
T-S fuzzy neural network
learning rate cosine attenuation strategy
F = fuzzy PID control
target oil pressure
url https://www.mdpi.com/2075-1702/11/2/183
work_keys_str_mv AT leichen targetoilpressurerecognitionalgorithmforoilpressurefollowingcontrolofelectronicassistedbrakesystem
AT yunchenyu targetoilpressurerecognitionalgorithmforoilpressurefollowingcontrolofelectronicassistedbrakesystem
AT jieluo targetoilpressurerecognitionalgorithmforoilpressurefollowingcontrolofelectronicassistedbrakesystem
AT zhongpengxu targetoilpressurerecognitionalgorithmforoilpressurefollowingcontrolofelectronicassistedbrakesystem