Parallel active link suspension: full car application with frequency-dependent multi-objective control strategies
File(s)Accepted Version.pdf (3.4 MB)
Accepted version
Author(s)
Yu, Min
Evangelou, Simos
Dini, daniele
Type
Journal Article
Abstract
In this article, a recently proposed at basic level novel suspension for road vehicles, the parallel active link suspension (PALS), is investigated in the realistic scenario of a sport utility vehicle (SUV) full car. The involved rocker-pushrod assembly is generally optimized to maximize the PALS capability in improving the suspension performance. To fully release the PALS functions of dealing with both low- and high-frequency road cases, a PID control scheme is first employed for the chassis attitude stabilization, focusing on the minimization of both the roll and pitch angles; based on a derived linear equivalent model of the PALS-retrofitted full car, an H∞ control scheme is designed to enhance the ride comfort and road holding; moreover, a frequency-dependent multiobjective control strategy that combines the developed PID and H∞ control is proposed to enable: 1) chassis attitude stabilization at 0-1 Hz; 2) vehicle vibration attenuation at 1-8 Hz; and 3) control effort penalization (for energy saving) above 10 Hz. With a group of ISO-defined road events tested, numerical simulation results demonstrate that, compared to the conventional passive suspension, the PALS has a promising potential in full-car application, with up to 70% reduction of the chassis vertical acceleration in speed bumps and chassis leveling capability of dealing with up to 4.3-m/s² lateral acceleration.
Date Issued
2022-09-01
Date Acceptance
2021-11-23
Citation
IEEE Transactions on Control Systems Technology, 2022, 30 (5), pp.2046-2061
ISSN
1063-6536
Publisher
Institute of Electrical and Electronics Engineers
Start Page
2046
End Page
2061
Journal / Book Title
IEEE Transactions on Control Systems Technology
Volume
30
Issue
5
Copyright Statement
© 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Sponsor
Engineering & Physical Science Research Council (EPSRC)
Identifier
https://ieeexplore.ieee.org/document/9646263
Grant Number
EP/N025954/1
Subjects
Science & Technology
Technology
Automation & Control Systems
Engineering, Electrical & Electronic
Engineering
Suspensions (mechanical systems)
Automobiles
Roads
Torque
Numerical models
Frequency control
Actuators
Active suspension
chassis attitude leveling
ride comfort
structural optimization
vehicle vibration control
VARIABLE-GEOMETRY SUSPENSION
Industrial Engineering & Automation
0102 Applied Mathematics
0906 Electrical and Electronic Engineering
Publication Status
Published
Date Publish Online
2021-12-10