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Modeling of a new active suspension for roll control

Conference Paper


Abstract


  • The paper presents the computer simulations and experimental validation on a new

    active suspension used for vehicle roll control. This study focuses primarily on the

    dynamics of Hydraulically Interconnected Active Suspensions and the dynamics of

    a vehicle fitted with the suspension. The proposed active suspension, also called as

    Demand Dependent Active Suspension, consists of four double direction hydraulic

    actuators which are hydraulically interconnected, and a pressure controlled fluid

    supply unit. The suspension can actively tilt the vehicle against its vibration modes

    (roll, pitch, bounce and articulation), by applying required restoring forces or

    moments. It therefore far exceeds the capability of passive or semi-active

    suspensions. This study evaluates the first part of the vehicle multi-mode control

    based on the proposed active suspension, i.e., implements vehicle roll control. This

    is because of the dangerous nature and fatal injuries associated with vehicle

    rollover incidents. Modeling, simulations and preliminary experiment of system

    dynamics of a vehicle fitted with the proposed suspension are carried out and the

    obtained simulation results agree with those obtained from experiment.

Authors


  •   Zhang, Nong (external author)
  •   Wang, Lifu (external author)
  •   Du, Haiping

Publication Date


  • 2009

Citation


  • N. Zhang, L. Wang & H. Du, "Modeling of a new active suspension for roll control," in 13th Asia Pacific Vibration Conference, 2009,

Abstract


  • The paper presents the computer simulations and experimental validation on a new

    active suspension used for vehicle roll control. This study focuses primarily on the

    dynamics of Hydraulically Interconnected Active Suspensions and the dynamics of

    a vehicle fitted with the suspension. The proposed active suspension, also called as

    Demand Dependent Active Suspension, consists of four double direction hydraulic

    actuators which are hydraulically interconnected, and a pressure controlled fluid

    supply unit. The suspension can actively tilt the vehicle against its vibration modes

    (roll, pitch, bounce and articulation), by applying required restoring forces or

    moments. It therefore far exceeds the capability of passive or semi-active

    suspensions. This study evaluates the first part of the vehicle multi-mode control

    based on the proposed active suspension, i.e., implements vehicle roll control. This

    is because of the dangerous nature and fatal injuries associated with vehicle

    rollover incidents. Modeling, simulations and preliminary experiment of system

    dynamics of a vehicle fitted with the proposed suspension are carried out and the

    obtained simulation results agree with those obtained from experiment.

Authors


  •   Zhang, Nong (external author)
  •   Wang, Lifu (external author)
  •   Du, Haiping

Publication Date


  • 2009

Citation


  • N. Zhang, L. Wang & H. Du, "Modeling of a new active suspension for roll control," in 13th Asia Pacific Vibration Conference, 2009,