Research on Ride Comfort of Composite Suspension Based on Multiple Working Condition Modes

被引：0
作者：
Sun, Wen [1 ,2 ]
Li, Chenyang [1 ,4 ]
Wang, Junnian [2 ]
Wan, Xujun [3 ]
Liu, Guijun [1 ]
Li, Wei [4 ]
机构：
[1] College of Automotive Engineering, Changzhou Institute of Technology, Changzhou
[2] Jilin University, National Key Laboratory of Automotive Chassis Integration and Bionics, Changchun
[3] BAIC Heavy Duty Truck Co. ，Ltd., Changzhou
[4] School of Automotive Engineering, Shandong Jiaotong University, Jinan
来源：
Qiche Gongcheng/Automotive Engineering | 2024年 / 46卷 / 11期
关键词：
composite suspension system; control strategy of switching working mode; multi-condition control strategy; multi-condition verification; ride comfort optimization;
D O I：
10.19562/j.chinasae.qcgc.2024.11.014
中图分类号：
学科分类号：
摘要：
As a core component for regulating vehicle ride comfort，the performance of the suspension sys⁃ tem directly determines the quality of vehicle driving. For the current problem of poor ride comfort during vehicle driving on complex roads，a composite suspension structure that is different from traditional suspensions is con⁃ structed in this paper，and the overall system architecture of this suspension is established. Firstly，in order to ex⁃ plore the vibration mechanism of the composite suspension of the complete vehicle，a dynamic model of the compos⁃ ite suspension of the complete vehicle is constructed. Secondly，combined with the complex driving requirements of the driver，a control strategy for the composite suspension system based on multiple operating conditions is con⁃ structed. The optimization effect is verified by different weighted RMS values of acceleration during vehicle driving，and the anti-air spring model is used to prove that the system can reduce the wear of the air spring. Finally，in the VI-Grade compact driving simulator，experimental verification is conducted based on the constructed complex oper⁃ ating conditions，and the test results of body vertical acceleration，roll angle acceleration，and pitch angle accelera⁃ tion with and without control are compared. The experimental results show that the proposed composite suspension system can improve performance by 32.26%，23.77%，and 7.38% under straight，curved，and braking conditions，respectively，through vehicle performance testing under complex conditions. It can effectively improve the ride com⁃ fort performance of vehicles while driving and solve the problem of air spring wear under normal driving conditions. © 2024 SAE-China. All rights reserved.
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页码：2076 / 2090and2099
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