The road condition is complex and variable during driving; hence, the suspension system cannot easily suppress the vertical vibration of the vehicle. To effectively improve the vehicle dynamic performance under different road conditions, this study proposes a switching control strategy for the semi-active suspension based on the road profile estimation. First, the mapping relationship between different driving conditions and requirements of vehicle dynamic performances is studied. Then, a switching controller with multiple sub-controllers is designed on the basis of the modified skyhook control. The optimal control gains are obtained by adopting the cuckoo search algorithm. In addition, to realise the automatic switching of the controller under different road conditions, an online road profile estimation method, including road disturbance estimation and road roughness classification, is developed. Bench test results show that the proposed control algorithm has an obvious effect on improving the vehicle ride comfort and handling performance, which verifies the effectiveness of the road estimation results and the superiority of the switching control strategy.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

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


    Contributors:
    Wang, Ruochen (author) / Liu, Wei (author) / Ding, Renkai (author) / Meng, Xiangpeng (author) / Sun, Zeyu (author) / Yang, Lin (author) / Sun, Dong (author)

    Published in:

    Vehicle System Dynamics ; 60 , 6 ; 1972-1992


    Publication date :

    2022-06-03


    Size :

    21 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown




    Road Profile Estimation for Active Suspension Applications

    Holweg, Edward / Arat, Mustafa Ali / Taheri, Saied | SAE Technical Papers | 2015


    Road profile estimation for active suspension applications

    Arat,M.A. / Taheri,S. / Holweg,E. et al. | Automotive engineering | 2015


    Road Profile Estimation for Active Suspension Applications

    Arat, Mustafa Ali / Taheri, Saied / Holweg, Edward | British Library Conference Proceedings | 2015


    Semi-suspension switching control design for road surface recognition

    ZHANG HUI / TAO SIYOU / CHEN JICHENG et al. | European Patent Office | 2024

    Free access

    Supervisor-Based Switching Strategy for Semi-Active Suspension Control

    Diaz-Choque, C. Steven / Felix-Herran, Luis Carlos / Galluzzi, Renato et al. | IEEE | 2022