Author: Benjamin Beacock
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description

Author: Wuwei Chen
Publisher: John Wiley & Sons
ISBN: 1118380010
Category : Technology & Engineering
Languages : en
Pages : 374

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Book Description
A comprehensive overview of integrated vehicle system dynamics exploring the fundamentals and new and emerging developments This book provides a comprehensive coverage of vehicle system dynamics and control, particularly in the area of integrated vehicle dynamics control. The book consists of two parts, (1) development of individual vehicle system dynamic model and control methodology; and (2) development of integrated vehicle dynamic model and control methodology. The first part focuses on investigating vehicle system dynamics and control according to the three directions of vehicle motions, including longitudinal, vertical, and lateral. Corresponding individual control systems, e.g. Anti-lock Brake System (ABS), Active Suspension, Electric Power Steering System (EPS), are introduced and developed respectively. Particular attention is paid in the second part of the book to develop integrated vehicle dynamic control system. Integrated vehicle dynamics control system is an advanced system that coordinates all the chassis control systems and components to improve the overall vehicle performance including safety, comfort, and economy. Integrated vehicle dynamics control has been an important research topic in the area of vehicle dynamics and control over the past two decades. The research topic on integrated vehicle dynamics control is investigated comprehensively and intensively in the book through both theoretical analysis and experimental study. In this part, two types of control architectures, i.e. centralized and multi-layer, have been developed and compared to demonstrate their advantages and disadvantages. Integrated vehicle dynamics control is a hot topic in automotive research; this is one of the few books to address both theory and practice of integrated systems Comprehensively explores the research area of integrated vehicle dynamics and control through both theoretical analysis and experimental study Addresses a full range of vehicle system topics including tyre dynamics, chassis systems, control architecture, 4 wheel steering system and design of control systems using Linear Matrix Inequality (LMI) Method

Author: Xiaodong Wu
Publisher: CRC Press
ISBN: 1040032354
Category : Technology & Engineering
Languages : en
Pages : 182

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Book Description
Advanced Chassis Control Technology for Steer-by-Wire Vehicles details state-of-the-art drive-by-wire technology, enabling engineers to create safer and smarter steering technology. With applications in Formula 1 driving, this book is an accessible yet ambitious introduction to the technology that is fast becoming the future of road vehicles. Steer-by-wire systems replace conventional mechanical technology with electronic sensors, controllers, and actuators, enhancing functionality when steering. Features such as variable steer ratio, customized road feel, and advanced vehicle dynamics control all ensure that this maximizes safety when driving. The book looks first at the theory behind this technology and compares it to conventional mechanical steering. It discusses control through forward and backward dynamics and a shared steering control concept to improve vehicle handling and performance, relevant to intelligent vehicles. It also explains how to create chassis domain fusion control, four independent wheels steering system and teleoperated control. Using case studies and ISOs, the book is a practical guide to safely designing steer-by-wire systems. The book is an essential guide to all engineers working in the modern automotive industry.

Author: Jingsheng Yu
Publisher: CRC Press
ISBN: 1000441946
Category : Technology & Engineering
Languages : en
Pages : 368

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Book Description
This book presents essential knowledge of car vehicle dynamics and control theory with NI LabVIEW software product application, resulting in a practical yet highly technical guide for designing advanced vehicle dynamics and vehicle system controllers. Presenting a clear overview of fundamental vehicle dynamics and vehicle system mathematical models, the book covers linear and non-linear design of model based controls such as wheel slip control, vehicle speed control, path following control, vehicle stability and rollover control, stabilization of vehicle-trailer system. Specific applications to autonomous vehicles are described among the methods. It details the practical applications of Kalman-Bucy filtering and the observer design for sensor signal estimation, alongside lateral vehicle dynamics and vehicle rollover dynamics. The book also discusses high level controllers, alongside a clear explanation of basic control principles for regenerative braking in both electric and hybrid vehicles, and wheel torque vectoring systems. Concrete LabVIEW simulation examples of how the models and controls are used in representative applications, along with software algorithms and LabVIEW block diagrams are illustrated. It will be of interest to engineering students, automotive engineering students and automotive engineers and researchers.

Author: Hocine Imine
Publisher: Springer
ISBN: 3642222242
Category : Technology & Engineering
Languages : en
Pages : 130

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Book Description
Vehicles are complex mechanical systems with strong nonlinear characteristics and which can present some uncertainties due to their dynamic parameters such as masses, inertias, suspension springs, tires side slip coefficients, etc. A vehicle is composed of many parts, namely the unsprung mass, the sprung mass, the suspension which makes the link between these two masses and therefore ensures passenger comfort, and also the pneumatic which absorbs the energy coming from the road and ensures contact between the vehicle and the road. In addition to its complexity and the presence of many nonlinearities and uncertainties, the presence of some external perturbations, such as the wind and the road inputs with its own characteristics (radius of curvature, longitudinal and lateral slop, road profile and skid resistance) can cause risks not only to the vehicle but also to passengers and other road users. Many methods have been developed in order to understand the behavior of a vehicle ( light and heavy vehicle), control it and assist the driver in order to avoid possible lane departures, rollover or jackknifing risks, to ensure a better passenger comfort by means of a suspension control and/or to estimate a safety speed and trajectory.

Author: Rajesh Rajamani
Publisher: Springer Science & Business Media
ISBN: 1461414326
Category : Technology & Engineering
Languages : en
Pages : 516

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Book Description
Vehicle Dynamics and Control provides a comprehensive coverage of vehicle control systems and the dynamic models used in the development of these control systems. The control system applications covered in the book include cruise control, adaptive cruise control, ABS, automated lane keeping, automated highway systems, yaw stability control, engine control, passive, active and semi-active suspensions, tire-road friction coefficient estimation, rollover prevention, and hybrid electric vehicles. In developing the dynamic model for each application, an effort is made to both keep the model simple enough for control system design but at the same time rich enough to capture the essential features of the dynamics. A special effort has been made to explain the several different tire models commonly used in literature and to interpret them physically. In the second edition of the book, chapters on roll dynamics, rollover prevention and hybrid electric vehicles have been added, and the chapter on electronic stability control has been enhanced. The use of feedback control systems on automobiles is growing rapidly. This book is intended to serve as a useful resource to researchers who work on the development of such control systems, both in the automotive industry and at universities. The book can also serve as a textbook for a graduate level course on Vehicle Dynamics and Control.

Author: Shahram Azadi
Publisher: Elsevier
ISBN: 0323856608
Category : Technology & Engineering
Languages : en
Pages : 510

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Book Description
Vehicle Dynamics and Control: Advanced Methodologies features the latest information on advanced dynamics and vehicle motion control, including a comprehensive overview of passenger cars and articulated vehicles, fundamentals, and emerging developments. This book provides a unified, balanced treatment of advanced approaches to vehicle dynamics and control. It proceeds to cover advanced vehicle control strategies, such as identification and estimation, adaptive nonlinear control, new robust control techniques, and soft computing. Other topics, such as the integrated control of passenger cars and articulated heavy vehicles, are also discussed with a significant amount of material on engineering methodology, simulation, modeling, and mathematical verification of the systems. This book discusses and solves new challenges in vehicle dynamics and control problems and helps graduate students in the field of automotive engineering as well as researchers and engineers seeking theoretical/practical design procedures in automotive control systems. - Provides a vast spectrum of advanced vehicle dynamics and control systems topics and current research trends - Provides an extensive discussion in some advanced topics on commercial vehicles, such as dynamics and control of semitrailer carrying liquid, integrated control system design, path planning and tracking control in the autonomous articulated vehicle

Author: Matthew J. Harlan
Publisher:
ISBN:
Category :
Languages : en
Pages : 280

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Book Description

Author: Dieter Schramm
Publisher: Springer
ISBN: 3662544830
Category : Technology & Engineering
Languages : en
Pages : 450

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Book Description
The authors examine in detail the fundamentals and mathematical descriptions of the dynamics of automobiles. In this context, different levels of complexity are presented, starting with basic single-track models up to complex three-dimensional multi-body models. A particular focus is on the process of establishing mathematical models based on real cars and the validation of simulation results. The methods presented are explained in detail by means of selected application scenarios. In addition to some corrections, further application examples for standard driving maneuvers have been added for the present second edition. To take account of the increased use of driving simulators, both in research, and in industrial applications, a new section on the conception, implementation and application of driving simulators has been added.

Author: Andy Jose Hernandez
Publisher:
ISBN:
Category : Automotive engineering
Languages : en
Pages : 0

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Book Description
The system-level design decisions on a Formula SAE vehicle drive all subsequent subsystem designs. However, there has yet to be a systematic method to select the vehicle footprint, engine, aero package, and tires to optimize the performance of the vehicle in typical Formula SAE applications. Instead, these decisions are often made based on what worked previously on the Cal State LA team or vehicles from other universities.A method to make system level decisions is developed and the results are presented in this work.To determine the effect of the vehicle design decisions on the performance of the vehicle, OpenLAP 2D point-mass lap-time simulations were conducted to examine how the various vehicle parameters influence lap time. The vehicle parameters used were tire grip, engine power, coefficient of drag and lift, vehicle mass, and front weight distribution. The relative sensitivity for these parameters came out to be -0.182%, -0.034%, 0.001%, -0.004%, 0.03%, and 0.005% respectively. The ChassisSim 3D transient lap-time simulations were conducted to also examine various vehicle parameters influence. The vehicle parameters used were mass front weight distribution, coefficient of lift and drag, tire grip, engine power, wheelbase, and square track width. The relative sensitivity for these parameters was 0.144%, 0.048%, -0.026%, 0.021%, -0.447%, -0.039%, -0.164%, and -0.064% respectively.A metric based on these findings was used to select the ideal tires for our vehicle. The metric was influenced by the normalized lateral force and tire mass. From this criteria it was concluded that a smaller tire was optimal, While higher values for both normalized max lateral force (NFY) and normalized max longitudinal force (NFX) would decrease lap times, to optimize the car for a FSAE competition in which 80% of the racetrack are turns, the team should concentrate on tires that can provide higher lateral forces. This was proven through the ChassisSim sensitivity study in which tire grip had the highest percent change. The sensitivities are then used to create a tire selection criteria by quantitatively weighing their various attributes.Using a MATLAB code to extract and reduce the data from the FSAE Tire Testing Consortium, specific tire parameters were obtained from the testing provided from the 4 tires used by FSAE teams internationally. The parameters determined from the testing are the NFY, the NFX, the cornering stiffness, restoring moment, and slip angle. With the values obtained, trends were found between the parameters and used our tire selection criteria to suggests a tire for use by the Cal State LA team.The methods and results developed in this thesis provide, for the first time, a way for Formula SAE teams to systematically make overall vehicle design decisions to achieve their team's objectives. This is evidenced by the optimal wheelbase (2.169 m) and square track width (1.728 m) obtained through the simulations as well as the optimal tire (Hoosier R25B 16x6-10 on a 7-in rim).