Taking a closed airbag suspension system as studying objects, the nonlinear dynamic model of the reservoir, compressor, solenoid valve, pipeline and air spring is established. The compressor exhaust volume, solenoid valve flow rate and air spring charging and discharging rate are calculated and compared with experiment to validate the model. Taking pressure difference and height adjustment rate under different working conditions of an airbag suspension as control measures, a control strategy is developed based on the established nonlinear dynamic model. The result indicates that when the vehicle is in curb weight, design weight and GVW (gross vehicle weight), the working time of the compressor can be reduced by 13.6%, 15.1% and 46.5%, respectively, compared with the conventional mode, during a height adjustment cycle. Then a state observer is proposed to estimate the steady-height for reducing the disturbance of measured height from road excitation. According to the required height error and pipeline pressure, a method for adjusting compressor speed to reduce the influence of pipeline pressure on height adjustment accuracy is proposed.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Modeling of Gas Charging and Discharging for Airbag Suspension System and Control of Height Adjustment


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Lv, Hui (Autor:in) / Deng, Lin (Autor:in) / Shangguan, Wenbin (Autor:in)

    Kongress:

    WCX SAE World Congress Experience ; 2023



    Erscheinungsdatum :

    2023-04-11




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Modeling of Gas Charging and Discharging for Airbag Suspension System and Control of Height Adjustment

    Deng, Lin / Lv, Hui / Shangguan, Wenbin | British Library Conference Proceedings | 2023


    Electrically controlled air suspension height adjustment control system

    ZHANG GUANGSHI | Europäisches Patentamt | 2015

    Freier Zugriff

    Machine suspension and height adjustment

    SLAWSON JAMES | Europäisches Patentamt | 2018

    Freier Zugriff

    Machine suspension and height adjustment

    SLAWSON JAMES | Europäisches Patentamt | 2020

    Freier Zugriff

    Machine suspension and height adjustment

    SLAWSON JAMES | Europäisches Patentamt | 2018

    Freier Zugriff