Control of a hydropneumatic active suspension based on a non-linear quarter-car model

B Gao, J Darling, D G Tilley, R A Williams, A Bean, J Donahue

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

It is extremely difficult to maintain simultaneously a high standard of ride, handling, and body control in a vehicle with a conventional passive suspension. However, it is well known that active suspensions provide a possible solution to this problem, albeit with additional cost and weight. This paper describes the design and analysis of a hydropneumatic slow active suspension. The design is based on hydropneumatic suspension components taken from a commercial system. A non-linear quarter-car model is developed, which includes a gas strut model developed in a previous study and a non-linear dynamic flow control valve model. A hybrid control strategy is proposed for the disturbance rejection and self-levelling requirements. The disturbance rejection control is based on limited state feedbacks and the linear quadratic method plus a Kalman filter that is used to optimize the performance index. The self-levelling control employs a proportional, integral, and derivative (PID) control strategy. Practical issues, such as power consumption, controller robustness, and valve dynamics, are also investigated in this paper. Simulations show that the proposed system has good performance and robustness.
Original languageEnglish
Pages (from-to)15-31
Number of pages17
JournalProceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering
Volume220
Issue numberI1
Publication statusPublished - 2006

Fingerprint

Railroad cars
Disturbance rejection
Suspensions (components)
Struts
State feedback
Robustness (control systems)
Flow control
Kalman filters
Electric power utilization
Derivatives
Controllers
Gases
Costs

Cite this

Control of a hydropneumatic active suspension based on a non-linear quarter-car model. / Gao, B; Darling, J; Tilley, D G; Williams, R A; Bean, A; Donahue, J.

In: Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering, Vol. 220, No. I1, 2006, p. 15-31.

Research output: Contribution to journalArticle

@article{0cb89de5202440b6afd3716c1eb72db4,
title = "Control of a hydropneumatic active suspension based on a non-linear quarter-car model",
abstract = "It is extremely difficult to maintain simultaneously a high standard of ride, handling, and body control in a vehicle with a conventional passive suspension. However, it is well known that active suspensions provide a possible solution to this problem, albeit with additional cost and weight. This paper describes the design and analysis of a hydropneumatic slow active suspension. The design is based on hydropneumatic suspension components taken from a commercial system. A non-linear quarter-car model is developed, which includes a gas strut model developed in a previous study and a non-linear dynamic flow control valve model. A hybrid control strategy is proposed for the disturbance rejection and self-levelling requirements. The disturbance rejection control is based on limited state feedbacks and the linear quadratic method plus a Kalman filter that is used to optimize the performance index. The self-levelling control employs a proportional, integral, and derivative (PID) control strategy. Practical issues, such as power consumption, controller robustness, and valve dynamics, are also investigated in this paper. Simulations show that the proposed system has good performance and robustness.",
author = "B Gao and J Darling and Tilley, {D G} and Williams, {R A} and A Bean and J Donahue",
year = "2006",
language = "English",
volume = "220",
pages = "15--31",
journal = "Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering",
issn = "0959-6518",
publisher = "Sage Publications",
number = "I1",

}

TY - JOUR

T1 - Control of a hydropneumatic active suspension based on a non-linear quarter-car model

AU - Gao, B

AU - Darling, J

AU - Tilley, D G

AU - Williams, R A

AU - Bean, A

AU - Donahue, J

PY - 2006

Y1 - 2006

N2 - It is extremely difficult to maintain simultaneously a high standard of ride, handling, and body control in a vehicle with a conventional passive suspension. However, it is well known that active suspensions provide a possible solution to this problem, albeit with additional cost and weight. This paper describes the design and analysis of a hydropneumatic slow active suspension. The design is based on hydropneumatic suspension components taken from a commercial system. A non-linear quarter-car model is developed, which includes a gas strut model developed in a previous study and a non-linear dynamic flow control valve model. A hybrid control strategy is proposed for the disturbance rejection and self-levelling requirements. The disturbance rejection control is based on limited state feedbacks and the linear quadratic method plus a Kalman filter that is used to optimize the performance index. The self-levelling control employs a proportional, integral, and derivative (PID) control strategy. Practical issues, such as power consumption, controller robustness, and valve dynamics, are also investigated in this paper. Simulations show that the proposed system has good performance and robustness.

AB - It is extremely difficult to maintain simultaneously a high standard of ride, handling, and body control in a vehicle with a conventional passive suspension. However, it is well known that active suspensions provide a possible solution to this problem, albeit with additional cost and weight. This paper describes the design and analysis of a hydropneumatic slow active suspension. The design is based on hydropneumatic suspension components taken from a commercial system. A non-linear quarter-car model is developed, which includes a gas strut model developed in a previous study and a non-linear dynamic flow control valve model. A hybrid control strategy is proposed for the disturbance rejection and self-levelling requirements. The disturbance rejection control is based on limited state feedbacks and the linear quadratic method plus a Kalman filter that is used to optimize the performance index. The self-levelling control employs a proportional, integral, and derivative (PID) control strategy. Practical issues, such as power consumption, controller robustness, and valve dynamics, are also investigated in this paper. Simulations show that the proposed system has good performance and robustness.

M3 - Article

VL - 220

SP - 15

EP - 31

JO - Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering

JF - Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering

SN - 0959-6518

IS - I1

ER -