This paper introduces a class of passive interconnected suspensions, defined mathematically in terms of their mechanical admittance matrices, with the purpose of providing greater freedom to specify independently bounce, pitch, roll, and warp dynamics than conventional (passive) suspension arrangements. Two alternative realization schemes are described that are capable of implementing this clas...

In this paper active suspension with linear electric motor has been designed. The active suspension is often hardly rejected for its big energy consumption. This contribution deals with direct real-time energy control in suspension system. The linear electric motor is used as an actuator. This motor can in specific situation generate the energy for next use. The H-infinity controller has been d...

The seat suspension has a significant influence on riding comfort in many practical applications, such as heavy duty vehicles, military and high-speed crafts. This paper proposes equipped with variable equivalent inertance-variable damping (VEI–VD) device novel semi-active vibration control strategy. VEI–VD can its inertance by controlling two external resistors electric circuit. Especially, th...

The main problem of vehicle vibration comes from road roughness. An active suspension systempossesses the ability to reduce acceleration of sprung mass continuously as well as to minimizesuspension deflection, which results in improvement of tire grip with the road surface. Thus, braketraction control and vehicle maneuverability can be improved consider ably .This study developeda new active su...

The suspension system has the role of regulating and extinguishing oscillations in vehicle. To improve stability comfort, active is proposed to replace passive system. There are many algorithms used for control, such as PID, LQR, Fuzzy, etc. Among them, nonlinear control method which uses SMC algorithm gives a stable performance. This research proposes use operation equipped with quarter dynami...

Active suspension is considered to be a good way improve the ride comfort of high-speed trains. According output index requirements train’s active suspension, giant magnetostrictive actuator(GMA) proposed. This mainly because materials(GMM) has characteristics fast response, large force and high energy conversion rate. It verified by experiments that proportional excitation current. found in ex...