Stochastic Road Condition Identification for Electromagnetic Active Suspension Based on Support Vector Regression

Zepeng Gao*, Sizhong Chen, Yuzhuang Zhao, Zhicheng Wu, Lin Yang, Jiang Hu, Yong Chen, Baoku Liu

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Accurate road condition identification is conducive to improving the accuracy of vehicle performance. Aiming at electromagnetic active suspension, a novel method is proposed to realize accurate road condition identification using finite unknown samples. Because actual road condition is changeable, it is not exactly consistent with the standard grade road. Therefore, this paper adopts the power spectral density value Gq(n0) as the identification object to identify the non-standard road condition. Accordingly, back propagation neural network (BPNN) and support vector regression (SVR) are employed to identify road conditions respectively. The results suggest that these two methods have high accuracy for the identification of standard grade roads. However, the random oscillation of road conditions increases the sample uncertainty, which seriously affects the identification accuracy of BPNN. This also causes that the accuracy of road condition identification obtained by SVR with finite sample data is significantly higher than that obtained by BPNN.

Original languageEnglish
Title of host publicationProceedings of the 11th International Conference on Modelling, Identification and Control, ICMIC 2019
EditorsRui Wang, Zengqiang Chen, Weicun Zhang, Quanmin Zhu
PublisherSpringer
Pages947-957
Number of pages11
ISBN (Print)9789811504730
DOIs
Publication statusPublished - 2020
Event11th International Conference on Modelling, Identification and Control, ICMIC 2019 - Tianjin, China
Duration: 13 Jul 201915 Jul 2019

Publication series

NameLecture Notes in Electrical Engineering
Volume582
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119

Conference

Conference11th International Conference on Modelling, Identification and Control, ICMIC 2019
Country/TerritoryChina
City Tianjin
Period13/07/1915/07/19

Keywords

  • Active suspension
  • Non-standard road condition
  • Power spectral density value
  • Road condition identification
  • Support vector regression

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