Design and Analysis of Vehicle Seat Suboptimal Control Active Suspension

doi:10.13190/j.jbupt.2020-219

Journal of Beijing University of Posts and Telecommunications ›› 2021, Vol. 44 ›› Issue (3): 87-93.doi: 10.13190/j.jbupt.2020-219

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Design and Analysis of Vehicle Seat Suboptimal Control Active Suspension

YU Yue-wei¹, ZHAO Lei-lei¹, ZHOU Chang-cheng¹, WANG Song², YUAN Jian¹

1. School of Transportation and Vehicle Engineering, Shandong University of Technology, Zibo 255000, China;
2. School of Modern Post(School of Automation), Beijing University of Posts and Telecommunications, Beijing 100876, China

Received:2020-10-23 Online:2021-06-28 Published:2021-06-23

Abstract

Abstract: In order to improve the ride comfort of vehicles, and effectively solve the problems of linear quadratic Gaussian optimal controller in practical application, such as many state variables to be mea-sured, difficulty in obtaining road parameters, and high application cost, a vehicle seat active suspension based on suboptimal control theory is designed according to 1/4 vehicle seat active suspension system model, and the performance of the vehicle seat suboptimal active suspension under different state variables is discussed. An optimal control strategy of vehicle seat active suspension based on suboptimal control theory is obtained. The reliability of the designed vehicle seat suboptimal control active suspension is verified by comparing with the traditional vehicle seat passive suspension and optimal control active suspension.

Key words: vehicle seat, active suspension, suboptimal control, control strategy, performance analysis

CLC Number:

U461.4

YU Yue-wei, ZHAO Lei-lei, ZHOU Chang-cheng, WANG Song, YUAN Jian. Design and Analysis of Vehicle Seat Suboptimal Control Active Suspension[J]. Journal of Beijing University of Posts and Telecommunications, 2021, 44(3): 87-93.

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