Force Tracking Control of Nonlinear Active Suspension System with Hydraulic Actuator Dynamic

2019 ◽  
pp. 92-102
Author(s):  
Erliana Samsuria ◽  
Yahaya M. Sam ◽  
Fazilah Hassan
Keyword(s):  
Tracking Control ◽  
Active Suspension ◽  
Suspension System ◽  
Hydraulic Actuator ◽  
Force Tracking

scholarly journals Design and investigation of pole assignment controller for driving nonlinear electro hydraulic actuator with new active suspension system model

2019 ◽  
Vol 233 (13) ◽  
pp. 3460-3479
Author(s):  
Ali Al-Zughaibi ◽  
Yiqin Xue ◽  
Roger Grosvenor ◽  
Aniekan Okon
Keyword(s):  
System Analysis ◽  
Active Suspension ◽  
Suspension System ◽  
The Body ◽  
Ride Quality ◽  
Control Force ◽  
Hydraulic Actuator ◽  
Friction Forces ◽  
Nonlinear Design ◽  
Conflicting Objectives

Fully active electrohydraulic control of a quarter-car test rig is considered from both a modelling and experimental point of view. This paper develops a nonlinear active hydraulic design for the active suspension system, which improves the inherent trade-off between ride quality and suspension travel. The novelty is in the use of pole assessment controller to drive a nonlinear active suspension with a new insight into the model through consideration of a new term, friction forces. Therefore, this model has taken into account the dynamic inclination angle [Formula: see text] between linkage and actuator regardless of the fact that the designer made an only vertical motion (bounce mode) of the wheel and body units. The second contribution of this paper is that it investigated the control force generation, therefore, the nonlinear hydraulic actuator whose effective bandwidth depends on the magnitude of the suspension travel, which incorporates the dynamic equation of servovalve, is deeply researched. The nonlinear friction model is accurately established, which relies on the dynamics system analysis and the fact of slipping the body on lubricant supported bearings; this model will caption all the friction behaviours that have been observed experimentally. In addition, the hydraulic system is used to generate the system inputs as a road simulator. The controller smoothly shifts its focus between the conflicting objectives of ride comfort and rattle space utilisation, softening the suspension when suspension travel is small and stiffening it as it approaches the travel limits. Thus, the nonlinear design allows the closed-loop system to behave differently in different operating regions. The improvement achieved with our design is illustrated through comparative experiments and simulations. C++ compiler environment is used to simulate the physical system to be controlled. The results show good servo control and fast regulation of abrupt disturbances.

Development of Active Suspension System for a Pot Hole Using PID Controller

2011 ◽  
Vol 308-310 ◽  
pp. 2266-2270
Author(s):  
Mouleeswaran Senthilkumar
Keyword(s):  
Pid Controller ◽  
Ride Comfort ◽  
Control Method ◽  
Controller Design ◽  
Active Suspension ◽  
Suspension System ◽  
Operating Conditions ◽  
Hydraulic Actuator ◽  
Time Domains ◽  
Spool Valve

This paper describes the development of a controller design for the active control of suspension system, which improves the inherent tradeoff among ride comfort, suspension travel and road-holding ability. The developed design allows the suspension system to behave differently in different operating conditions, without compromising on road-holding ability. The effectiveness of this control method has been explained by data from time domains. Proportional-Integral-Derivative (PID) controller including hydraulic dynamics has been developed. The displacement of hydraulic actuator and spool valve is also considered. The Ziegler – Nichols tuning rules are used to determine proportional gain, reset rate and derivative time of PID controller. Simulink diagram of active suspension system is developed and analysed using MATLAB software. The investigations on the performance of the developed active suspension system are demonstrated through comparative simulations in this paper.

On the Limitations of Force Tracking Control for Hydraulic Servosystems

1999 ◽  
Vol 121 (2) ◽  
pp. 184-190 ◽  
Author(s):  
Andrew Alleyne ◽  
Rui Liu
Keyword(s):  
Tracking Control ◽  
Physical Phenomenon ◽  
Problem Formulation ◽  
Feedback Mechanism ◽  
Open Loop ◽  
Simple Solution ◽  
Hydraulic Actuator ◽  
Fundamental Limitations ◽  
Force Tracking ◽  
Solution Methods

This paper presents analysis of a particular force tracking control problem for rectilinear hydraulic actuators governed by a servovalve. It presents no new theory, but rather uses a revealing model reduction insight coupled with Classical analysis to explain a physical phenomenon. As such, this work is an attempt to explain why a seemingly innocuous problem is more subtle than initially believed. A motivation for this problem is given along with prior attempts at a simple solution. It is shown that simple controller solutions are quite adequate for other types of control objectives such as force regulation or position tracking. However, most simple solution methods are shown to be inadequate for force tracking due to fundamental limitations of the problem formulation. Due to an inherent feedback mechanism, the poles of the plant being forced by the hydraulic actuator become zeros of the open loop force transfer function. Therefore, more advanced control algorithms are shown to be a necessity rather than a luxury.

scholarly journals Quarter Car Active Suspension System Control Using PID Controller tuned by PSO

2015 ◽  
Vol 11 (2) ◽  
pp. 151-158 ◽  
Author(s):  
Wissam Al-Mutar ◽  
Turki Abdalla
Keyword(s):  
Pid Controller ◽  
Active Suspension ◽  
Suspension System ◽  
System Control ◽  
Hydraulic Actuator ◽  
Passive Suspension ◽  
Car Suspension ◽  
Road Profile ◽  
Passive Suspension System ◽  
Quarter Car

The objective of this paper is to design an efficient control scheme for car suspension system. The purpose of suspension system in vehicles is to get more comfortable riding and good handling with road vibrations. A nonlinear hydraulic actuator is connected to passive suspension system in parallel with damper. The Particles Swarm Optimization is used to tune a PID controller for active suspension system. The designed controller is applied for quarter car suspension system and result is compared with passive suspension system model and input road profile. Simulation results show good performance for the designed controller.

Model Based Actuator Management for a Hydraulic Active Suspension System: Improving Comfort Performance by Advanced Control

2011 ◽  
Author(s):  
Stijn De Bruyne ◽  
Jan Anthonis ◽  
Marco Gubitosa ◽  
Herman Van der Auweraer ◽  
Wim Desmet ◽  
...  
Keyword(s):  
Simulation Analysis ◽  
Active Suspension ◽  
Suspension System ◽  
Actuator Dynamics ◽  
Handling Performance ◽  
Suspension Systems ◽  
Active Suspension Systems ◽  
Advanced Control ◽  
Performance Map ◽  
Force Tracking

Active suspension systems aim at increasing safety by improving vehicle ride and handling performance while ensuring superior passenger comfort. This paper addresses the influence of the actuator management on the comfort performance of a complete hydraulic active suspension system. An innovative approach, based on nonlinear Model Predictive Control, is proposed and compared to a classical approach that employs a steady-state performance map of the actuator. A simulation analysis shows how taking into account actuator dynamics improves the actuator’s force tracking performance, leading to an improvement of the overall vehicle comfort performance.

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