Research on Height Control Algorithm for Hydro-Pneumatic Suspension System Based on Model Predictive Control

DOI

10.2991/iiicec-15.2015.246How to use a DOI?

Keywords

hydro-pneumatic suspension; height control; model predictive control

Abstract

Aiming to improve the precision of vehicle height control for hydro-pneumatic suspension system, having deeply considered the nonlinear factors existing in the lifting and lowering process, we derived the equations of hydraulic pressure in the cylinder and air pressure gradient in the accumulator. Based on these mathematical descriptions, a nonlinear quarter car hydro-pneumatic suspension model was established. The nonlinear model was globally linearized and discretized, and a model predictive control was designed in the linear domain. The simulation results show that the designed controller is able to solve the overshoot problem existing in the lifting and lowering process of hydro-pneumatic suspension and improves vehicle height control precision and quality obviously.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Shang-hong Liu
AU  - Chang Liu
AU  - Yu-zhuang Zhao
PY  - 2015/03
DA  - 2015/03
TI  - Research on Height Control Algorithm for Hydro-Pneumatic Suspension System Based on Model Predictive Control
BT  - Proceedings of the 2015 International Industrial Informatics and Computer Engineering Conference
PB  - Atlantis Press
SP  - 1107
EP  - 1112
SN  - 2352-538X
UR  - https://doi.org/10.2991/iiicec-15.2015.246
DO  - 10.2991/iiicec-15.2015.246
ID  - Liu2015/03
ER  -