Author: Rahizar RamliPublisher:
ISBN:
Category :
Languages : en
Pages : 452
Book Description
Dynamic Simulation of Semi-active Suspension Systems for Durability Analysis
Author: Rahizar RamliSemi-Active Suspension Control Design for Vehicles
Author: Sergio M. SavaresiPublisher: Elsevier
ISBN: 0080966799
Category : Technology & Engineering
Languages : en
Pages : 241
Book Description
Semi-Active Suspension Control Design for Vehicles presents a comprehensive discussion of designing control algorithms for semi-active suspensions. It also covers performance analysis and control design. The book evaluates approaches to different control theories, and it includes methods needed for analyzing and evaluating suspension performances, while identifying optimal performance bounds. The structure of the book follows a classical path of control-system design; it discusses the actuator or the variable-damping shock absorber, models and technologies. It also models and discusses the vehicle that is equipped with semi-active dampers, and the control algorithms. The text can be viewed at three different levels: tutorial for novices and students; application-oriented for engineers and practitioners; and methodology-oriented for researchers. The book is divided into two parts. The first part includes chapters 2 to 6, in which fundamentals of modeling and semi-active control design are discussed. The second part includes chapters 6 to 8, which cover research-oriented solutions and case studies. The text is a comprehensive reference book for research engineers working on ground vehicle systems; automotive and design engineers working on suspension systems; control engineers; and graduate students in control theory and ground vehicle systems. Appropriate as a tutorial for students in automotive systems, an application-oriented reference for engineers, and a control design-oriented text for researchers that introduces semi-active suspension theory and practice Includes explanations of two innovative semi-active suspension strategies to enhance either comfort or road-holding performance, with complete analyses of both Also features a case study showing complete implementation of all the presented strategies and summary descriptions of classical control algorithms for controlled dampers
Analysis and Controller Design for Semi-active Suspension Systems
Author: Yean-Ren HwangDynamic and Control Analysis of Semi-Active Suspension System
Author: Zohir Ben lahcenePublisher: LAP Lambert Academic Publishing
ISBN: 9783843366052
Category :
Languages : en
Pages : 188
Book Description
Vehicles handling and ride comfort are essential subject because these vehicles operate at different environments. Improving the comfortability enables the drivers to derive for a long time at critical situations with full activity. This work deals with dynamics and control policies analysis of semi-active suspension systems for off-road vehicles. Comprehensive comparison on three different configurations; 2-axle, 3-axle and 4-axle half-vehicle models were conducted to analyze the effect of using semi-active control policies. The application of several control policies of semi-active suspension system, namely skyhook; ground-hook and hybrid controls have been analyzed and compared with passive systems. Sprung mass acceleration, suspension deflection and tyre deflection responses were analyzed for measurements of ride quality and road handling. Analysis in frequency domain transfer function, time domain transient state and time domain steady state were conducted on each of the models.
Semi-active Suspension Control
Author: Emanuele GuglielminoPublisher: Springer Science & Business Media
ISBN: 1848002319
Category : Technology & Engineering
Languages : en
Pages : 302
Book Description
Semi-active Suspension Control provides an overview of vehicle ride control employing smart semi-active damping systems. These systems are able to tune the amount of damping in response to measured vehicle-ride and handling indicators. Two physically different dampers (magnetorheological and controlled-friction) are analysed from the perspectives of mechatronics and control. Ride comfort, road holding, road damage and human-body modelling are studied. Mathematical modelling is balanced by a large and detailed section on experimental implementation, where a variety of automotive applications are described offering a well-rounded view. The implementation of control algorithms with regard to real-life engineering constraints is emphasised. The applications described include semi-active suspensions for a saloon car, seat suspensions for vehicles not equipped with a primary suspension, and control of heavy-vehicle dynamic-tyre loads to reduce road damage and improve handling.
Dynamics and Control Policies Analysis of Semi-active Suspension System for Off-road Vehicle
Author: Zohir BenlahceneDynamic Behavior of Suspension System
Author: Suketu JaniPublisher: LAP Lambert Academic Publishing
ISBN: 9783659392245
Category :
Languages : en
Pages : 108
Book Description
In present book 7 Degree Of Freedom mathematical models is developed for full car vehicle model and validated. Semi-active suspension system is evaluated for half car model for multi utility car, based on modified skyhook theory. Passive suspension has limitation that it has fix damping coefficient, so design of passive suspension can optimize for particular road condition. By soft damping we can get good ride comfort and better isolation of spring mass by allow large suspension deflection but it reduce handling performance due to unnecessary suspension deflection which reduce the safety. Alternatively by hard damping, it reduces unnecessary suspension deflection to improve handling performance but, reduce ride comfort due to poor isolation of spring mass. To improve ride quality and vehicle handling performance, Active Suspension System or Semi active suspension system is used. Semi Active Suspension system is used to reduce cost, weight and power consumption compare to Active Suspension System.
Dynamics and Control Analysis of a Non-linear Active Suspension System Using Half Vehicle Model
Author: Musa Mohammed BelloPublisher:
ISBN:
Category :
Languages : en
Pages : 210
Book Description
The main purpose of vehicle suspension system is to isolate the vehicle main body from any road geometrical irregularities in order to improve the passengers ride comfort and to maintain good handling characteristics subject to different road profile. This dissertation aim at establishing a mathematical model and a control strategy for a nonlinear hydraulically actuated active suspension system. A model of nonlinear, four Degree of Freedom (DOF) half vehicle active suspension system with hydraulic actuator dynamics and a similar nonlinear, four DOF half vehicle passive suspension system model was developed using Matlab/Simulink environment. A control system consisting of two controller loops was also developed, namely inner loop controller for force tracking control of the hydraulic actuator and outer loop controller to resist the effects of road induced disturbances. The outer loop controller employed a proportional integral and differential (PID) control strategy. On the other hand, a proportional integral and differential (PID) force feedback control scheme was employed in the inner loop controller to stabilize the hydraulic actuator in such a way that it is able to supply the actual force as close as possible with the optimum targeted force supplied by the PID controller. Two types of road (discrete and random) inputs were employed and a simulation study using Matlab/Simulink environment was performed to test the effectiveness and robustness of the control scheme. The performance of the active suspension system was assessed by comparing it response to that of passive suspension system. Results obtained shows that, the active suspension system developed a good dynamic response and a better ride comfort when compared to the conventional passive suspension system.
Car Suspension Systems and Vehicle Dynamics
Author: Society of Automotive EngineersPublisher:
ISBN: 9781560911708
Category : Technology & Engineering
Languages : en
Pages : 152
Book Description
Multi-body Dynamics
Author: Homer RahnejatPublisher: John Wiley & Sons
ISBN: 9781860584633
Category : Technology & Engineering
Languages : en
Pages : 552
Book Description
Multi-body dynamics describes the physics of motion of an assembly of constrained or restrained bodies. As such it encompasses the behaviour of nearly every living or inanimate object in the universe. Multi-body dynamics - Monitoring and Simulation Techniques III includes papers from leading academic researchers, professional code developers, and practising engineers, covering recent fundamental advances in the field, as well as applications to a host of problems in industry.They broadly cover the areas: Multi-body methodology Structural dynamics Engine dynamics Vehicle dynamics - ride and handling Machines and mechanisms Multi-body Dynamics is a unique volume, describing the latest developments in the field, supplemented by the latest enhancements in computer simulations, and experimental measurement techniques. Leading industrialists explain the importance attached to these developments in industrial problem solving.