Study of Performance of Incorporating Pneumatic Suspension System with the Hydraulic Actuator for Quarter Car and Using Controllers with Genetic Algorithm

Suspension systems are one of the main parts vehicle that provide passenger comfort and stability, while it is difficult for conventional passive suspension to cope with vibrations which exposed. Air have a dynamic character allows good handling road comfortable ride, but in certain area this reason stiffness air must be flexibly changed. The has been developed inclusion hydraulic actuator create an additional force withstands incoming vibration from road. pneumatic system parameters, such as vertical acceleration, holding, displacement, improved continuously based on controllers used nonlinear systems, fractional order proportional integral derivative (FOPID), fuzzy logic control (FLC). genetic algorithm utilized tune controller's parameters active system's 3-DOF. A model's simulation outcomes performance. proposed compared when traveling at speed 72 km/h ISO level B test ability efficiency suppress body enhance safety ride rough roads. According results, substantially lowers enhances adaptability.