An Objective Assessment Of Steering System Parameters For Drivers Torque Feedback
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| Author | : Alexander Hitti |
| Publisher | : |
| Total Pages | : |
| Release | : 2016 |
| Genre | : |
| ISBN | : 9781339825236 |
The electric power steering system has drastically impacted the concept of steering feel. In a Column Motor Driven Power Steering (C-MDPS) system, the assist motor is mounted directly to the steering column. This assist motor applies a torque onto the steering column to provide a desired torque, hence indirectly impacting the steering torque feedback or feel. A bond graph model of this C-MDPS system is developed and connected to a full vehicle bicycle car model. The resulting state equations from this model are implemented into MatLab/Simulink for simulation. Higher order friction models are used in the worm gear, the steering rack, and the vehicle tires to increase fidelity. The sensitivity of the system to key parameters and frictions is studied through varying these parametric elements by percentages of their nominal value and observing the effect on system outputs such as Yaw Rate Gain and Parking Effort. The system performance is validated based on objective data. A test stand setup is used to study the characteristics of the torque on the steering column and the worm gear friction. The full vehicle model is compared to data from a test vehicle.
| Author | : Anna Orlova |
| Publisher | : Springer Nature |
| Total Pages | : 1274 |
| Release | : 2022-08-08 |
| Genre | : Technology & Engineering |
| ISBN | : 3031073053 |
This book offers a snapshot of the latest research and developments in road and railway vehicle dynamics. Gathering peer-reviewed contributions to the 27th Symposium of the International Association of Vehicle System Dynamics (IAVSD), held online on August 17–19, 2021, from Saint Petersburg, Russia, it offers extensive information for both researchers and professionals in the field of ground vehicle dynamics, control and design. It covers cutting-edge methods and solutions for solving ground vehicle system dynamics-related problems, concerning control and monitoring, performance, safety and braking of road and rail vehicles, including electric and autonomous ones. Further, it reports on significant advances in vehicle design, and important applications to improve ride comfort. Overall, the book provides academics and professional with a timely reference guide on theories and methods to understand, analyze and improve vehicle stability and dynamics in a broad range of different operating conditions. Chapter "Experimental Validation of a Semi-physical Modelling Approach of the Influence of Tyre Rotation on the Vertical Tyre Force Transmission and Tyre Kinematics" is available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.
| Author | : Guy H. Walker |
| Publisher | : CRC Press |
| Total Pages | : 313 |
| Release | : 2018-04-17 |
| Genre | : Computers |
| ISBN | : 1317147847 |
A potentially troubling aspect of modern vehicle design – some would argue - is a trend for isolating the driver and reducing vehicle feedback, usually in the name of comfort and refinement but increasingly because of automation. There is little doubt cars have become more civilised over the years, yet despite this, the consequences of driver behaviour remain to a large extent anecdotal. Readers will have heard such anecdotes for themselves. They usually take the form of drivers of a certain age recalling their first cars from the 1970s or 80s, in which "doing 70 mph really felt like it". The question is whether such anecdotes actually reflect a bigger, more significant issue that could be better understood. Related questions have been explored in other domains such as aviation, where the change to ‘fly-by-wire’ did indeed bring about some occasionally serious performance issues that were not anticipated. Despite some clear parallels, automotive systems have been left relatively unstudied. The research described in this book aims to explore precisely these issues from a Human Factors perspective. This means connecting the topics of vehicle feel, vehicle dynamics, and automotive engineering with the latest research on driver situation awareness. The problem is explored experimentally from a variety of theoretical viewpoints but the outcomes are consistently practical. Here we have a promising new avenue along which the driver experience can be enhanced in novel and insightful ways. Tools and templates are provided so that engineers and designers can try different ways to boost vehicle safety, efficiency and enjoyment from a human-centered perspective. Association of American Publishers (AAP) Finalist for the 2019 PROSE Award Features Diagnosis of how vehicle feel impacts driver situation awareness, and how this could aid future vehicle designs Multi-theory approach to driver situation awareness, and how different views of this important concept give rise to different insights Comprehensive analysis of situation awareness in driving, the information requirements of drivers, and how these needs can be supported Practical descriptions of how state-of-science Human Factors methods have been applied in practice
| Author | : Marcelo M. Soares |
| Publisher | : CRC Press |
| Total Pages | : 688 |
| Release | : 2012-07-09 |
| Genre | : Technology & Engineering |
| ISBN | : 1439870241 |
Successful interaction with products, tools, and technologies depends on usable designs, accommodating the needs of potential users and does not require costly training. In this context, Advances in Usability Evaluation Part I discusses emerging concepts, theories, and applications of human factors knowledge focusing on the discovery and understanding of human interaction with products and systems for their improvement. The book covers devices and their interfaces, focusing on optimization of user devices and emphasizing visual and haptic feedback. It then discusses user studies, exploring the limits and capabilities of special populations, particularly the elderly, which can influence the design. It also examines the effect of changes in force and kinematics, physiology, cognitive performance, in the design of consumer products, tools and workplaces. Examining a variety of user-centered evaluation approaches, the concluding chapters details methods for developing products that can improve safety and human performance and at same time, the efficiency of the system. It reports on usability evaluations for different kinds of products and technologies, particularly for cellular phones, earphones, earphone controls, mattresses and pillows, package and professional tools, and service systems. The book provides new methods that enhance performance, expand capabilities, and optimize the fit between people and technology.
| Author | : Wanzhong Zhao |
| Publisher | : Springer Nature |
| Total Pages | : 455 |
| Release | : 2022-09-24 |
| Genre | : Technology & Engineering |
| ISBN | : 9811942501 |
This book focuses on the control-by-wire system, particularly the steer-by-wire system, as well as its control and optimization issues in chassis integration. The steering stability of the vehicle, handling portability, and overall performance of the chassis system are improved by steer-by-wire technology, which includes stability control, road-feeling control, decoupling control, force and displacement coordinated control, and chassis integration optimization. Furthermore, intelligent control goals such as active collision avoidance and active rollover prevention of the vehicle are realized, and the active safety of the vehicle is increased, due to the integrated control of the steer-by-wire system and chassis system. In this book, different types of steer-by-wire systems are introduced, as well as thorough force and displacement control strategies and their implementation in chassis integrated control, ensuring the intelligent and unmanned driving's control reaction speed and precision.
| Author | : Manfred Harrer |
| Publisher | : Springer |
| Total Pages | : 569 |
| Release | : 2016-06-24 |
| Genre | : Technology & Engineering |
| ISBN | : 331905449X |
This edited volume presents basic principles as well as advanced concepts of the computational modeling of steering systems. Moreover, the book includes the components and functionalities of modern steering system, which are presented comprehensively and in a practical way. The book is written by more than 15 leading experts from the automotive industry and its components suppliers. The target audience primarily comprises practicing engineers, developers, researchers as well as graduate students who want to specialize in this field.
| Author | : Gavriel Salvendy |
| Publisher | : CRC Press |
| Total Pages | : 8218 |
| Release | : 2012-08-06 |
| Genre | : Computers |
| ISBN | : 0429621019 |
With contributions from an international group of authors with diverse backgrounds, this set comprises all fourteen volumes of the proceedings of the 4th AHFE Conference 21-25 July 2012. The set presents the latest research on current issues in Human Factors and Ergonomics. It draws from an international panel that examines cross-cultural differences, design issues, usability, road and rail transportation, aviation, modeling and simulation, and healthcare.
| Author | : |
| Publisher | : |
| Total Pages | : 544 |
| Release | : 1982 |
| Genre | : Automobiles |
| ISBN | : |
| Author | : Marcelo M. Soares |
| Publisher | : CRC Press |
| Total Pages | : 685 |
| Release | : 2012-07-09 |
| Genre | : Technology & Engineering |
| ISBN | : 143987025X |
This volume covers the use of ergonomics modeling and on the evaluation of usability, which is a critical aspect of any human-technology system. It will provide new training methods that enhance performance, expand capabilities, and optimize the fit between people and technology.
| Author | : Peter E. Pfeffer |
| Publisher | : Springer Nature |
| Total Pages | : 794 |
| Release | : 2019-11-01 |
| Genre | : Technology & Engineering |
| ISBN | : 3658264357 |
The increasing automation of driving functions and the electrification of powertrains present new challenges for the chassis with regard to complexity, redundancy, data security,and installation space. At the same time, the mobility of the future will also require entirely new vehicle concepts, particularly in urban areas. The intelligent chassis must be connected, electrified, and automated in order to be best prepared for this future.
