Abstract Vehicle handling and ride comfort are very important characteristics that influence the riding quality of the vehicle which depends on suspension. Semi-active suspension has the performance in between the active and passive suspension. In semi-active suspension system, damping coefficient changes according to the displacement and velocity of sprung and unsprung mass. There are various control strategies which decide requirement of damping coefficient for ride comfort and vehicle handling at various excitation frequencies. A fuzzy logic control strategy has been developed and compared with skyhook, groundhook, and hybrid control strategies. For the analysis, two degree of freedom quarter car model is used and simulated in MATLAB Simulink. The performance analysis has been done for two road profiles, namely bump and sine wave at 2.5 and 11 Hz frequencies, which are critical for ride comfort and vehicle handling, respectively. The results for body displacement, wheel displacement, suspension working space, and dynamic tire deflection have been compared for various control strategies. The analysis shows that skyhook control improves ride comfort for the results of maximum peak-to-peak body displacement with 23.91% improvement than that of the passive suspension model. While groundhook control improves vehicle stability for the results of maximum peak-to-peak wheel displacement and dynamic tire deflection which has improvement of about 44.81 and 12.7%, respectively, when compared with passive suspension model. Whereas hybrid control strategy improves the ride comfort as well as road stability depending upon the controller gain. Fuzzy logic control gives the optimized performance for ride comfort and vehicle handling for all the frequencies.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Performance Analysis of Semi-active Suspension System Based on Suspension Working Space and Dynamic Tire Deflection


    Contributors:
    Funde, Jaydeep (author) / Wani, K. P. (author) / Dhote, N. D. (author) / Patil, S. A. (author)


    Publication date :

    2018-12-15


    Size :

    15 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




    Tire suspension fusion system for estimation of tire deflection and tire load

    SINGH KANWAR BHARAT | European Patent Office | 2018

    Free access

    Semi-active suspension system

    Crawford,I.L. / Ford Motor,GB | Automotive engineering | 1987


    Distributed semi-active suspension system

    LIU XIANG / DAI HOUSHAN / HU FANGQUAN et al. | European Patent Office | 2022

    Free access

    TIRE SUSPENSION STRUCTURE AND TIRE SUSPENSION METHOD

    YAMAGUCHI TETSUO | European Patent Office | 2017

    Free access

    Semi-Active Seat Suspension System

    MCGOVERN JOHN-PAUL / RILEY MATTHEW M / COEY TYSON et al. | European Patent Office | 2023

    Free access