Mixed H2/H∞ control for enhancing anti-interference performance of EPS system

Wan Zhong Zhao; Yi Lin; Guo Biao Shi

Mixed H₂/H_∞ control for enhancing anti-interference performance of EPS system

Wan Zhong Zhao^*, Yi Lin, Guo Biao Shi

^*Corresponding author for this work

School of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

According to the requirements of the electric bus on the electric power steering EPS, a recirculating ball type EPS system was designed and its dynamic model was established. Because of the existence of system uncertainties in modeling, signal disturbance, sensor noise, considering the requirements on the system robustness and the dynamic performance, a mixed H₂/H_∞ controller was designed and optimized by the mixed weighted index optimization. The simulation results showed that this optimal control method could attenuate the random road excitation, torque sensor measurement noises and disturbances, reduce oscillations that might occur in the steering column, provide satisfied road feeling for drivers. The simulation results were verified by the bench test. The test results showed that the mixed H₂/H_∞ controller for the recirculating balltype EPS system is feasible and effective, and it improves the vehicle steering and handling stability.

Original language	English
Pages (from-to)	1420-1424
Number of pages	5
Journal	Jilin Daxue Xuebao (Gongxueban)/Journal of Jilin University (Engineering and Technology Edition)
Volume	39
Issue number	6
Publication status	Published - Nov 2009

Keywords

Electrical power steering
Pure electric power bus
Recirculating ball-type
Vehicle engineering

Cite this

Zhao, W. Z., Lin, Y., & Shi, G. B. (2009). Mixed H₂/H_∞ control for enhancing anti-interference performance of EPS system. Jilin Daxue Xuebao (Gongxueban)/Journal of Jilin University (Engineering and Technology Edition), 39(6), 1420-1424.

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title = "Mixed H2/H∞ control for enhancing anti-interference performance of EPS system",

abstract = "According to the requirements of the electric bus on the electric power steering EPS, a recirculating ball type EPS system was designed and its dynamic model was established. Because of the existence of system uncertainties in modeling, signal disturbance, sensor noise, considering the requirements on the system robustness and the dynamic performance, a mixed H2/H∞ controller was designed and optimized by the mixed weighted index optimization. The simulation results showed that this optimal control method could attenuate the random road excitation, torque sensor measurement noises and disturbances, reduce oscillations that might occur in the steering column, provide satisfied road feeling for drivers. The simulation results were verified by the bench test. The test results showed that the mixed H2/H∞ controller for the recirculating balltype EPS system is feasible and effective, and it improves the vehicle steering and handling stability.",

keywords = "Electrical power steering, Pure electric power bus, Recirculating ball-type, Vehicle engineering",

author = "Zhao, {Wan Zhong} and Yi Lin and Shi, {Guo Biao}",

year = "2009",

month = nov,

language = "English",

volume = "39",

pages = "1420--1424",

journal = "Jilin Daxue Xuebao (Gongxueban)/Journal of Jilin University (Engineering and Technology Edition)",

issn = "1671-5497",

publisher = "Editorial Board of Jilin University",

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T1 - Mixed H2/H∞ control for enhancing anti-interference performance of EPS system

AU - Zhao, Wan Zhong

AU - Lin, Yi

AU - Shi, Guo Biao

PY - 2009/11

Y1 - 2009/11

N2 - According to the requirements of the electric bus on the electric power steering EPS, a recirculating ball type EPS system was designed and its dynamic model was established. Because of the existence of system uncertainties in modeling, signal disturbance, sensor noise, considering the requirements on the system robustness and the dynamic performance, a mixed H2/H∞ controller was designed and optimized by the mixed weighted index optimization. The simulation results showed that this optimal control method could attenuate the random road excitation, torque sensor measurement noises and disturbances, reduce oscillations that might occur in the steering column, provide satisfied road feeling for drivers. The simulation results were verified by the bench test. The test results showed that the mixed H2/H∞ controller for the recirculating balltype EPS system is feasible and effective, and it improves the vehicle steering and handling stability.

AB - According to the requirements of the electric bus on the electric power steering EPS, a recirculating ball type EPS system was designed and its dynamic model was established. Because of the existence of system uncertainties in modeling, signal disturbance, sensor noise, considering the requirements on the system robustness and the dynamic performance, a mixed H2/H∞ controller was designed and optimized by the mixed weighted index optimization. The simulation results showed that this optimal control method could attenuate the random road excitation, torque sensor measurement noises and disturbances, reduce oscillations that might occur in the steering column, provide satisfied road feeling for drivers. The simulation results were verified by the bench test. The test results showed that the mixed H2/H∞ controller for the recirculating balltype EPS system is feasible and effective, and it improves the vehicle steering and handling stability.

KW - Electrical power steering

KW - Pure electric power bus

KW - Recirculating ball-type

KW - Vehicle engineering

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Mixed H₂/H_∞ control for enhancing anti-interference performance of EPS system

Abstract

Keywords

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