Modeling of Interlinked Air Suspension and Study on its Dynamic Performance

Interlinked air suspension, which formed by interconnecting two or more air springs of traditional air suspension using switchable pneumatic pipe connections, can further improve vehicles riding comfort and driving stability. The structure and working principle of this suspension is introduced, the model of interlinked air suspension is developed and validated via experiments. Simulation results indicate that, the larger the diameter of connecting pipe, the smaller the stiffness of air springs, and interlinked air suspension can effectively reduce vehicles roll angle and vertical vibration under its first natural frequency, which greatly affects vehicles riding comfort.