Digital Controller Design for Half-Car Active Suspension System with Using Singular Perturbation Theory

2011 ◽  
Vol 403-408 ◽  
pp. 4800-4805 ◽  
Author(s):  
A. R. Paarya ◽  
H. Zarabadipour
Keyword(s):  
Perturbation Theory ◽  
Controller Design ◽  
Suspension System ◽  
Digital Controller ◽  
Singular Perturbation Theory ◽  
Vehicle Suspension ◽  
Car Model ◽  
Perturbed Systems ◽  
Simulation Results ◽  
Vehicle Suspension System

In this paper the digital controller design for vehicle suspension system, based on a half-car model using singular perturbed systems is considered. This strategy is based on the slow and fast subsystems controller design. The simulation results show them favorable performance of the controller and achieve fast and good response.

Observer and Controller Design for Half-Car Active Suspension System Using Singular Perturbation Theory

2011 ◽  
Vol 403-408 ◽  
pp. 4786-4793 ◽  
Author(s):  
M. Aghazadeh ◽  
H. Zarabadipour
Keyword(s):  
Perturbation Theory ◽  
Singular Perturbation ◽  
System Performance ◽  
Ride Comfort ◽  
Controller Design ◽  
Active Suspension ◽  
Suspension System ◽  
Singular Perturbation Theory ◽  
State Variables ◽  
Simulation Results

In this paper the singular perturbation theory is used to design observer for estimation of state variables for proper control of half-car active suspension system. The liner quadric Gaussian (LQG) controller has been used to obtain feedback gains. The suspension system performance is optimized with respect to ride comfort, tire deflections and front and rear suspension travels. The simulation results show that the proposed approach is highly effective in evaluating the performance of an active suspension system.

Magnetorheological damper in semi-active vehicle suspension system using SDRE control for a quarter car model

2018 ◽  
Author(s):  
Maria Aline Gonçalves ◽  
Rodrigo Tumolin Rocha ◽  
Frederic Conrad Janzen ◽  
José Manoel Balthazar ◽  
Angelo Marcelo Tusset
Keyword(s):  
Suspension System ◽  
Magnetorheological Damper ◽  
Vehicle Suspension ◽  
Quarter Car Model ◽  
Car Model ◽  
Quarter Car ◽  
Vehicle Suspension System ◽  
Active Vehicle Suspension System

An Approach on Performance Comparison of Quarter Car Suspension System

2014 ◽  
Vol 984-985 ◽  
pp. 629-633
Author(s):  
Palanisamy Sathishkumar ◽  
Jeyaraj Jancirani ◽  
John Dennie
Keyword(s):  
Degrees Of Freedom ◽  
Performance Comparison ◽  
Suspension System ◽  
Vehicle Body ◽  
Vehicle Suspension ◽  
Passive Suspension ◽  
Passenger Comfort ◽  
Car Model ◽  
Car Suspension ◽  
Vehicle Suspension System

The present article introduces an approach that combines passive and active elements to improve the ride and passenger comfort. The main aim of vehicle suspension system should isolate the vehicle body from road unevenness for maintaining ride and passenger comfort. The ride and passenger comfort is improved by reducing the car body acceleration caused by the irregular road surface. The vehicle body along with the wheel system is modelled as two degrees of freedom one fourth of car model. The model is tested on road bump with severe peak amplitude excitations. In the conclusion, a comparison of active, semi-active and passive suspension is shown using MATLAB simulations.

Parametric Optimization for the Design of Passenger Vehicle Suspension System with the Application of Genetic Algorithm

2019 ◽  
Vol 11 (2) ◽  
Author(s):  
Mohd Avesh ◽  
Rajeev Srivastava ◽  
Rakesh Chandmal Sharma
Keyword(s):  
Suspension System ◽  
Vehicle Suspension ◽  
Passenger Vehicle ◽  
Multiple Parameters ◽  
Car Model ◽  
Optimum Parameters ◽  
Floor Vibrations ◽  
Vehicle Acceleration ◽  
Noise Function ◽  
Vehicle Suspension System

In this paper an improved suspension system of a four-wheel vehicle is designed to minimize the vehicle floor vibrations. A seven degree-of-freedom full car model of vehicle system is modelled using the linear approach and is excited under the uncertain road inputs approximated by the white noise function. Vehicle acceleration in bounce, pitch and roll along with suspension displacement are the multiple parameters blended into single objective function to be minimized through proper allocation of weightages to each sub-objective based on real implications. The modified suspension system with optimum parameters results in improvement in the dynamic characteristic. Computer simulation through MATLAB-Simulink is providing an approximate solution against expensive and time taking experimentation.

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