In this paper, we propose an overview and a benchmark of the most classic semi-active suspension control laws. Based on a recent result where the optimal semi-active performance trade-off was derived (see Poussot-Vassal et al. (2010)), here, a complete benchmark to evaluate the main semi-active suspension control design methods is proposed. The present paper gives a quick picture of the present...

The paper presents the virtual model of the active suspension system used for improving the dynamic behavior of a motor vehicle. The study is focused on the design of the control system, the purpose being to minimize the effect of the road disturbances (which are considered as perturbations for the control system). The analysis is performed for a quarter-car model, which corresponds to the susp...

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...

In this work we obtain a new description of the vertical motion of the car including the active suspension. It consists of 4 completely decoupled subsystems. The first 3 ones are of order 4 each and they are analogous to standard quarter car suspension models. The 4th subsystem is of order 2 and it introduces a new abstract variable denoted by γ. One of the novelties of this modeling result is ...

Automotive suspension system is important part of car comfort and safety. In this article automotive active suspension with linear motor as actuator is designed using H-infinity control. This paper is focused on comparison of different controller designed for quart, half or full-car model (and always used for “full” car). Special attention is placed on energy demand of the whole system. Each co...

A novel fuzzy-logic-based control for vehicle-active suspension is suggested. The vehicle vibration and disturbance are reduced considerably with a fuzzy logic controller, to enhance comfort in riding faced with uncertain road terrains. A quarter-car active suspension system is controlled to reduce the vertical acceleration to a level of, that of, a hypothetical reference model. A new look-up t...

Abstract Background This paper proposes a method for designing passive suspension system that determines the optimal settings while offering feasible performance near an active system. A mathematical model of nonlinear quarter car is developed and simulated control optimization in MATLAB/Simulink ® environment. The input road condition Class C Road, vehicle moves at 80 kmph. Fuzzy logic (FLC) a...