Enhancing Ride Comfort of Quarter Car Semi-active Suspension System Through State-Feedback Controller

2018 ◽  
pp. 827-837 ◽  
Author(s):  
Muhamad Amin Zul Ifkar Mohd Fauzi ◽  
Fitri Yakub ◽  
Sheikh Ahmad Zaki Shaikh Salim ◽  
Hafizal Yahaya ◽  
Pauziah Muhamad ◽  
...  
Keyword(s):  
State Feedback ◽  
Ride Comfort ◽  
Active Suspension ◽  
Suspension System ◽  
Feedback Controller ◽  
State Feedback Controller ◽  
Quarter Car

Active Vehicle Suspension Control Using Full State-Feedback Controller

2015 ◽  
Vol 1115 ◽  
pp. 440-445 ◽  
Author(s):  
Musa Mohammed Bello ◽  
Amir Akramin Shafie ◽  
Raisuddin Khan
Keyword(s):  
State Feedback ◽  
Ride Comfort ◽  
Active Suspension ◽  
Suspension System ◽  
Feedback Controller ◽  
Vehicle Suspension ◽  
Passive Suspension ◽  
Full State ◽  
Full State Feedback ◽  
Passive Suspension System

The main purpose of vehicle suspension system is to isolate the vehicle main body from any road geometrical irregularity in order to improve the passengers ride comfort and to maintain good handling stability. The present work aim at designing a control system for an active suspension system to be applied in today’s automotive industries. The design implementation involves construction of a state space model for quarter car with two degree of freedom and a development of full state-feedback controller. The performance of the active suspension system was assessed by comparing it response with that of the passive suspension system. Simulation using Matlab/Simulink environment shows that, even at resonant frequency the active suspension system produces a good dynamic response and a better ride comfort when compared to the passive suspension system.

scholarly journals State Feedback Controller Design of an Active Suspension System for Vehicles Using Pole Placement Technique

2019 ◽  
Author(s):  
Andrea Wéber ◽  
Miklós Kuczmann
Keyword(s):  
State Feedback ◽  
Traffic Accidents ◽  
Controller Design ◽  
Active Suspension ◽  
Suspension System ◽  
Feedback Controller ◽  
Pole Placement ◽  
State Feedback Controller ◽  
The Road ◽  
Quarter Car Model

The paper presents a method for designing a state feedback controller of an active suspension system of a quarter car model. This is a survey based on a specific example. The designed controller of the active suspension system improves the driving control, safety and stability, because during the ride, the periodic swinging motion generated by the road irregularities on wheels can be decreased. This periodic motion damages the driving comfort, and may cause traffic accidents. The state feedback controller is designed to stand road induced displacements. Computer simulations of the designed controller have been performed in the frame of Scilab and XCos.

Improvement on Ride Comfort of Quarter-Car Active Suspension System Using Linear Quadratic Regulator

2018 ◽  
pp. 431-441
Author(s):  
Sharifah Munawwarah Syed Mohd Putra ◽  
Fitri Yakub ◽  
Mohamed Sukri Mat Ali ◽  
Noor Fawazi Mohd Noor Rudin ◽  
Zainudin A. Rasid ◽  
...  
Keyword(s):  
Ride Comfort ◽  
Linear Quadratic Regulator ◽  
Active Suspension ◽  
Suspension System ◽  
Linear Quadratic ◽  
Quarter Car

scholarly journals Proportional-Integral State-Feedback Controller Optimization for a Full-Car Active Suspension Setup using a Genetic Algorithm

2018 ◽  
Vol 51 (4) ◽  
pp. 1-6
Author(s):  
Michiel Haemers ◽  
Stijn Derammelaere ◽  
Clara-Mihaela Ionescu ◽  
Kurt Stockman ◽  
Jasper De Viaene ◽  
...  
Keyword(s):  
Genetic Algorithm ◽  
State Feedback ◽  
Active Suspension ◽  
Feedback Controller ◽  
Proportional Integral ◽  
State Feedback Controller

scholarly journals Robust Mixed H2/H∞ State Feedback Controller Development for Uncertain Automobile Suspensions with Input Delay

Processes ◽  
2020 ◽  
Vol 8 (3) ◽  
pp. 359
Author(s):  
Nan Liu ◽  
Hui Pang ◽  
Rui Yao
Keyword(s):  
Feedback Control ◽  
State Feedback ◽  
Actuator Saturation ◽  
Output Feedback Control ◽  
Active Suspension ◽  
Feedback Controller ◽  
State Feedback Control ◽  
Linear Matrix ◽  
Control Approach ◽  
State Feedback Controller

In order to achieve better dynamics performances of a class of automobile active suspensions with the model uncertainties and input delays, this paper proposes a generalized robust linear H2/H∞ state feedback control approach. First, the mathematical model of a half-automobile active suspension is established. In this model, the H∞ norm of body acceleration is determined as the performance index of the designed controller, and the hard constraints of suspension dynamic deflection, tire dynamic load and actuator saturation are selected as the generalized H2 performance output index of the designed controller to satisfy the suspension safety requirements. Second, a generalized H2/H∞ guaranteed cost state-feedback controller is developed in terms of Lyapunov stability theory. In addition, the Cone Complementarity Linearization (CCL) algorithm is employed to convert the generalized H2/H∞ output-feedback control problem into a finite convex optimization problem (COP) in a linear matrix inequality framework. Finally, a numerical simulation case of this half-automobile active suspension is presented to illustrate the effectiveness of the proposed controller in frequency-domain and time-domain.

H∞ Control of Active Suspension System for a Quarter Car Model

2016 ◽  
Vol 8 (1) ◽  
Author(s):  
N.M. Ghazaly ◽  
A.S Ahmed ◽  
A.S Ali ◽  
G.T Abd El- Jaber
Keyword(s):  
Ride Comfort ◽  
Active Suspension ◽  
Suspension System ◽  
Passive Suspension ◽  
Quarter Car Model ◽  
Suspension Systems ◽  
Car Model ◽  
Active Suspension Systems ◽  
Passive Suspension System ◽  
Quarter Car

In recent years, the use of active control mechanisms in active suspension systems has attracted considerable attention. The main objective of this research is to develop a mathematical model of an active suspension system that is subjected to excitation from different road profiles and control it using H∞ technique for a quarter car model to improve the ride comfort and road handling. Comparison between passive and active suspension systems is performed using step, sinusoidal and random road profiles. The performance of the H∞ controller is compared with the passive suspension system. It is found that the car body acceleration, suspension deflection and tyre deflection using active suspension system with H∞ technique is better than the passive suspension system.

Fuzzy Comprehensive Evaluation for Two Kinds of Suspension Controllers

2017 ◽  
Vol 865 ◽  
pp. 561-564
Author(s):  
Rong Rong Song
Keyword(s):  
Genetic Algorithm ◽  
State Feedback ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Suspension System ◽  
The State ◽  
Feedback Controller ◽  
Proportional Integral Derivative ◽  
Proportional Integral ◽  
State Feedback Controller

In order to improve the nonlinear and uncertain characteristics of the suspension system, using the differential geometry, the suspension system is transformed into two linear subsystems. The state feedback controller and the proportional integral derivative (PID) controller based on the genetic algorithm are designed, and the fuzzy comprehensive evaluation method based on the analytic hierarchy process is modified, which can evaluate the suspension performance of the controllers. The evaluation results show that the proportional integral derivative controller with the genetic algorithm is better than the state feedback controller.

Sign in / Sign up

Export Citation Format

Share Document