In order to optimize the overall parameters of semi-active suspension, a random road surface model and a dynamic model of semi-active suspension are established based on spatial geometric relationships. The LQG control strategy based on optimal theory is adopted to suppress the pitch motion of the vehicle body and optimize the performance parameters of the suspension. The ratio of the root mean square performance parameters of semi-active suspension and passive suspension is used as the fitness function of the particle swarm optimization algorithm, and a single level of road input is discarded, Design a road excitation model with mixed road surface levels to adapt to the high-speed driving of vehicles on different road surfaces. Adjust the weight coefficients of the fitness function to a certain extent, and finally iteratively optimize the LQG controller weight coefficients corresponding to different road surfaces to further suppress the vehicle's pitch angle and improve the safety and stability of vehicle driving.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Semi-active suspension LQG control based on hybrid road level


    Contributors:
    Na, Jing (editor) / He, Shuping (editor) / Fu, Datian (author) / Yuan, Chunyuan (author) / Yan, Junjun (author) / Yan, Weihui (author)

    Conference:

    International Conference on Automation Control, Algorithm, and Intelligent Bionics (ACAIB 2024) ; 2024 ; Yinchuan, China


    Published in:

    Proc. SPIE ; 13259


    Publication date :

    2024-09-04





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Road Quality Information Based Adaptive Semi-active Suspension Control

    Basargan, Hakan / Mihály, András / Gáspár, Péter et al. | BASE | 2021

    Free access

    Vehicle Semi-active Suspension Control with Cloud-based Road Information

    Basargan, Hakan / Mihály, András / Kisari, Ádám et al. | BASE | 2021

    Free access

    Nonlinear Control for Semi-active Road-friendly Truck Suspension

    Valasek, M. / Kortuem, W. / Society of Automotive Engineers of Japan | British Library Conference Proceedings | 1998


    Switching control of semi-active suspension based on road profile estimation

    Wang, Ruochen / Liu, Wei / Ding, Renkai et al. | Taylor & Francis Verlag | 2022


    Semi-Active Suspension Adaptive Control Strategy Based on Hybrid Control

    Zhang, X. / Yu, W. / Ma, F. et al. | British Library Conference Proceedings | 2013