The research described in this paper focused on improving occupant ride comfort and road holding by suppressing sprung and unsprung vibration using a semi-active suspension system. It has been reported that occupants tend to perceive vertical vibrations in a frequency range between 4 and 8 Hz as uncomfortable (described below as the “mid-frequency range”). Previous research into semi-active suspension system has focused on reducing vibration in this mid-frequency range, as well as close to the sprung resonance frequency of between 1 and 2 Hz. Skyhook damper (SH) control is a typical ride comfort control used to damp vibration close to the sprung resonance frequency. However, since SH control is not capable of damping vibration in the mid-frequency range, the shock absorbers are configured with a lower damping factor. This helps to achieve a good balance between reducing vibration close to the sprung mass resonance and in the mid-frequency range. In contrast, it has the trade-off effect of increasing unsprung vibration. The triple skyhook (tSH) control, which suspends the vehicle using three virtual elements (i.e., springs, dampers, and inerters), has been proposed to help resolve these issues. This control is capable of reducing sprung vibration over a wide range without altering the suspension characteristics. Furthermore, this control only uses information from sprung mass sensors, and can be configured using simple control laws. The purpose of this research is to simultaneously satisfy requirements for both ride comfort and road holding by applying tSH control to a vehicle with a semi-active suspension system. This was accomplished by driving a test vehicle over an irregular road surface, and analyzing the vehicle roll, pitch, and heave, as well as the unsprung vibration frequency. As a result, this research confirmed that the proposed control improves ride comfort by reducing sprung vibration over a wide frequency range. In addition, by suppressing deterioration in unsprung vibration, the control improves the road-holding performance compared to the conventional SH control.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    A Study of Triple Skyhook Control for Semi-Active Suspension System


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Katsuyama, Etsuo (Autor:in) / Shimoya, Naoto (Autor:in)

    Kongress:

    WCX SAE World Congress Experience ; 2019



    Erscheinungsdatum :

    02.04.2019




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    A Study of Triple Skyhook Control for Semi-Active Suspension System

    Shimoya, Naoto / Katsuyama, Etsuo | British Library Conference Proceedings | 2019


    SEMI ACTIVE SUSPENSION CONTROL METHODS USING SKYHOOK AND ENDSTOP CONTROL

    MATTHEW ABRAHAM / MATTSON MICHAEL / CRANMER JEFFREY | Europäisches Patentamt | 2024

    Freier Zugriff

    Comparison between Skyhook and Minimax Control Strategies for Semi-active Suspension System

    Hongkun Zhang / Hermann Winner / Wenjun Li | BASE | 2009

    Freier Zugriff

    Fuzzy semi-active damping force estimator ( fSADE ) and skyhook semi-active suspension systems

    Bakar,S.A. / Jamaluddin,H. / Rahman,R.A. et al. | Kraftfahrwesen | 2011