Download or read book Stability Control of Electric Vehicles with In wheel Motors written by Kiumars Jalali and published by LAP Lambert Academic Publishing. This book was released on 2012 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recently, mostly due to global warming concerns and high oil prices, electric vehicles have attracted a great deal of interest as an elegant solution to environmental and energy problems. In addition to the fact that electric vehicles have no tailpipe emissions and are more efficient than internal combustion engine vehicles, they represent more versatile platforms on which to apply advanced motion control techniques. The focus of this book is to develop effective control strategies to improve driving dynamics and safety based on the philosophy of individually monitoring and controlling the tire forces on each wheel. A two-passenger electric all-wheel-drive urban vehicle with four in-wheel motors and an active steering system is designed and developed in this work. Based on this platform, a number of different stability and traction control systems have been developed using soft computing techniques. Finally, these control systems are integrated with each other and the performance and effectiveness of each stability control system is evaluated and compared using some standard test maneuvers.

Download or read book Stability Control of Electric Vehicles with In wheel Motors written by Kiumars Jalali and published by . This book was released on 2010 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recently, mostly due to global warming concerns and high oil prices, electric vehicles have attracted a great deal of interest as an elegant solution to environmental and energy problems. In addition to the fact that electric vehicles have no tailpipe emissions and are more efficient than internal combustion engine vehicles, they represent more versatile platforms on which to apply advanced motion control techniques, since motor torque and speed can be generated and controlled quickly and precisely. The chassis control systems developed today are distinguished by the way the individual subsystems work in order to provide vehicle stability and control. However, the optimum driving dynamics can only be achieved when the tire forces on all wheels and in all three directions can be influenced and controlled precisely. This level of control requires that the vehicle is equipped with various chassis control systems that are integrated and networked together. Drive-by-wire electric vehicles with in-wheel motors provide the ideal platform for developing the required control system in such a situation. The focus of this thesis is to develop effective control strategies to improve driving dynamics and safety based on the philosophy of individually monitoring and controlling the tire forces on each wheel. A two-passenger electric all-wheel-drive urban vehicle (AUTO21EV) with four direct-drive in-wheel motors and an active steering system is designed and developed in this work. Based on this platform, an advanced fuzzy slip control system, a genetic fuzzy yaw moment controller, an advanced torque vectoring controller, and a genetic fuzzy active steering controller are developed, and the performance and effectiveness of each is evaluated using some standard test maneuvers. Finally, these control systems are integrated with each other by taking advantage of the strengths of each chassis control system and by distributing the required control effort between the in-wheel motors and the active steering system. The performance and effectiveness of the integrated control approach is evaluated and compared to the individual stability control systems, again based on some predefined standard test maneuvers.

Download or read book Traction Control of an Electric Vehicle with Four In Wheel Motors written by Amin Hajihosseinlu and published by . This book was released on 2016-08-28 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of a Vehicle Stability Control Strategy for a Hybrid Electric Vehicle Equipped with Axle Motors written by Kerem Bayar and published by . This book was released on 2011 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Hybrid-electric vehicles have been available to consumers for over a decade, and plug-in hybrid and pure electric vehicles are rapidly becoming mainstream products with the introduction of vehicles such as the Chevrolet Volt and the Nissan Leaf in 2011. These vehicles have in common an electric powertrain, comprised of one or more electric motors and of a battery pack which in the case of hybrid vehicles supplements and internal combustion engine. It is well understood that hybrid and electric vehicles have the benefit of significant reduction in CO2 emissions and in the use of petroleum as a fuel. However, one additional benefit of hybrid and electric vehicles remains so far under-utliized: the use of the electric traction system to enhance vehicle stability control. This potentially or low cost feature could provide additional motivation for customers to choose hybrid or electric vehicles over conventional ones. This dissertation documents the conception and development of a novel control strategy to allocate braking and tractive forces in a hybrid electric vehicle equipped with axle motors, for the purpose of enhancing the vehicle stability control system. The work described in this dissertation documents the development of a hierarchical control strategy, its design and stability proofs, and its evaluation using software and model in-the-loop methods. The work includes the development of a dynamic HEV simulator that is capable of evaluating vehicle dynamics responses during emergency maneuvers, to demonstrate its stability. For this purpose, a hybrid powertrain simulation model including batteries, motors, differential, shaft, wheel, and electro-hydraulic brake system models are developed. Furthermore, a simple yet reliable vehicle dynamics model is integrated with the powertrain model to capture longitudinal, lateral, yaw and roll degrees of freedoms of the vehicle. The development of the simulator is a minor, but an original contribution of this dissertation. The principal contribution of this work is a novel and systematic vehicle stability control (VSC) strategy that distributes the corrective longitudinal force and yaw moment action to generate individual wheel slip ratios by blending regenerative axle motor braking and/or traction with individual wheel braking; so as to track the desired vehicle speed and yaw rate without causing excessive vehicle sideslip angles. This dissertation shows that including the axle electric motors within the proposed VSC frame, improves the performance of vehicle stability control in comparison to production vehicle VSC strategies. The potential benefit of electric motors, namely their ability to provide rapid braking/tractive torque actuation, is utilized in addition to the friction brakes within the proposed VSC scheme. The resulting strategy is the first published result that shows that yaw tracking and vehicle stabilization can be performed without interfering in the driver's longitudinal speed demand. Furthermore, the strategy limits the yaw rate in order to keep the vehicle sideslip angle in the safe range, by increasing the understeer coefficient whenever a sideslip angle safety threshold is exceeded. A secondary benefit of the proposed VSC scheme is its energy saving feature, thanks to the use of highly efficient electric motors and their regenerative braking capability in comparison to a standard vehicle stability control schemes that use only the brake and engine intervention. Finally, the proposed VSC strategy is tested in real time, by using a model-in-the-loop simulation set-up, using state-of-the-art hardware-in-the-loop computer systems. Model-in-the-loop simulation results for different road conditions and steering maneuvers showed that the proposed VSC performs satisfactorily in real time as well, suggesting that is amenable to in-vehicle implementation.

Download or read book Integrated Vehicle Stability and Power Management Controls for Electric Vehicles written by Andy Wong and published by . This book was released on 2014 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: An integrated vehicle controller is presented for electric vehicles using independently driven wheel motors. This topology takes an optimal control approach to enhancing a vehicle's performance, stability, and energy consumption metrics simultaneously in a unified software structure. The logical output of this algorithm is a set of re-distributed wheel torques, to create torque vectoring for stability-focused yaw rate tracking, and longitudinal biasing to modify motor load for energy savings. A real-time numerical approach to solving the optimization problem is also presented, and shown to offer benefits over a closed form analytic approach. In this, solution constraints are used to link considerations such as nonlinear motor limits, tire friction envelopes, and lower-level traction control loops. To test the efficacy of this control structure, two vehicle test platforms were constructed as retrofits of production gas SUVs for electric drive. For this, the component layout is given, followed by an explanation of the software code structure as performed in a Simulink/Carsim/dSpace environment. Results from these platforms are given, with experimental and simulation data for traction control, yaw performance tracking and drive cycle power consumption. Proven performance over a variety of maneuvers and surface conditions further demonstrate the controller's stability and suitability for mass production.

Download or read book Motion Control written by Federico Casolo and published by IntechOpen. This book was released on 2010-01-01 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book reveals many different aspects of motion control and a wide multiplicity of approaches to the problem as well. Despite the number of examples, however, this volume is not meant to be exhaustive: it intends to offer some original insights for all researchers who will hopefully make their experience available for a forthcoming publication on the subject.

Download or read book Traction Control for Electric Vehicles with Independently Driven Wheels written by Nathan Ewin and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book New Trends in Electrical Vehicle Powertrains written by Luis Romeral Martinez and published by BoD – Books on Demand. This book was released on 2019-01-30 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: The electric vehicle and plug-in hybrid electric vehicle play a fundamental role in the forthcoming new paradigms of mobility and energy models. The electrification of the transport sector would lead to advantages in terms of energy efficiency and reduction of greenhouse gas emissions, but would also be a great opportunity for the introduction of renewable sources in the electricity sector. The chapters in this book show a diversity of current and new developments in the electrification of the transport sector seen from the electric vehicle point of view: first, the related technologies with design, control and supervision, second, the powertrain electric motor efficiency and reliability and, third, the deployment issues regarding renewable sources integration and charging facilities. This is precisely the purpose of this book, that is, to contribute to the literature about current research and development activities related to new trends in electric vehicle power trains.

Download or read book Design and Development of Electro Mechanical Hybrid Differential for Traction Control in Electric and Hybrid Vehicles written by Sujan Neroula and published by . This book was released on 2022-10-02 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the chapter "Overview on Electric vehicles and hybrid vehicles " discusses in detail the basics of electric and hybrid vehicles. A brief history of the EVs followed by a detailed review of the existing technology in the field of EVs and the hybrid vehicle has been presented in chronological order. The chapters incorporate the technological advancements in various drivetrain configurations of a hybrid vehicle, AC and DC motors used in EVs, traction control strategies, and torque coupling techniques. In the chapter titled "Design of Electric Vehicle", various steps involved in the designing of the vehicle have been presented. A backward approach i.e., the power flow starting from the power source and successively moving towards the wheels going through transmission and torque conversion has been presented in detail. The vehicle dynamics, structure, and key design techniques are taken into consideration while designing the vehicle that has been presented in this chapter. In the chapter titled "Traction control based on passenger occupancy status", a comprehensive study on the effect of passenger occupancy on vehicle dynamics has been presented. Along with this, simulation, analysis, and the application of the passenger occupancy model in a lightweight vehicle have been presented with real-time on-road results. In the chapter, titled "Design and analysis of an electronic differential for torque vectoring in an independently rear-wheel driven electric vehicle using multiple-frequency control", the prior art in the field of electronic differential has been discussed. Along with this, the concept of multiple frequency-controlled electronic differentials has been put forward. The design parameters and details have been presented along with the real-time on-road results obtained during the assessment of the differential. In the chapter titled "Design and development of Electro-Mechanical Hybrid Differential (EMHD) for traction control in electric and hybrid vehicles", a novel design of hybrid differential has been proposed. The chapter presents the motivation behind the EMHD, conceptualization, and modeling of the EMHD, and design of the EMHD. The chapter also includes various simulation situations considered for the assessment of the EMHD model in the simulation environment. The steps involved in the designing of the EMHD, along with the know-how and design details have been presented. Finally, the chapter titled "Conclusions" presents the summary of the Ph.D. work and some important results. Along with this, the contribution of the work in the field of e-mobility and the future scope has been presented.

Download or read book Traction Control in Electric Vehicles written by Tiago Sá and published by LAP Lambert Academic Publishing. This book was released on 2013 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transportation sector is one of the biggest industrial sectors nowadays. Since the development of the internal combustion engine and its application to the transportation sector, people are becoming dependent on a more economic and comfortable way of traveling. However, besides all the benefits that combustion engines can provide, the abusive use of fossil fuels, its constant increase of price and recent environmental concerns led to a new form of mobility, supported on a technology already used in the past: the electric motor. Having this in consideration, this book aims at analyzing and discussing the control domain in electric mobility concerning the permanent magnet synchronous motors, in particular an application of a 150kW motor for an electric bus. It is presented the design of the controller that drives the motor, allowing its driving and braking, with the ability to regenerate braking energy for recharging the batteries. Also, the system is capable of working without speed or position sensors.

Download or read book Modelling Dynamics and Control of Electrified Vehicles written by Haiping Du and published by Woodhead Publishing Limited. This book was released on 2017-10 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modelling, Dynamics and Control of Electrified Vehicles provides a systematic overview of EV-related key components, including batteries, electric motors, ultracapacitors and system-level approaches, such as energy management systems, multi-source energy optimization, transmission design and control, braking system control and vehicle dynamics control. In addition, the book covers selected advanced topics, including Smart Grid and connected vehicles. This book shows how EV work, how to design them, how to save energy with them, and how to maintain their safety. The book aims to be an all-in-one reference for readers who are interested in EVs, or those trying to understand its state-of-the-art technologies and future trends. Offers a comprehensive knowledge of the multidisciplinary research related to EVs and a system-level understanding of technologies Provides the state-of-the-art technologies and future trends Covers the fundamentals of EVs and their methodologies Written by successful researchers that show the deep understanding of EVs

Download or read book Managing Electric Vehicle Power written by Sam Davis and published by SAE International. This book was released on 2020-08-31 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Power management involves all the power consumed in an electric vehicle (EV), so it impacts the vehicle's performance, safety, and driving range. To provide these vehicle characteristics, power management: Ensures that the proper power, voltage, and current are applied to each electronic circuit. Ensures that there is isolation between low-voltage and highvoltage (HV) circuits. Offers power circuit protection against electrical disturbances that can affect internal or external circuits. Managing Electric Vehicle Power provides complete coverage for understanding how best to utilize the primary power source across all the EV's Electric Control Units. Readers will also be introduced to the qualification standards of the Automotive Electronics Council (AEC). AEC standards are a 'one-time' qualification that typically takes place at the end of the development cycle.

Download or read book The Key Technologies for Powertrain System of Intelligent Vehicles Based on Switched Reluctance Motors written by Yueying Zhu and published by Springer Nature. This book was released on 2021-09-18 with total page 389 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is intended for engineer’s in automotive industry and in research community of electrical machines. This book systematically focus on all the major aspects of switched reluctance motor for intelligent electric vehicle applications, including optimization design, drive system control, regenerative braking control, and motor-suspension system control, which is particularly suited for readers who are interested to learn the theory of the motor used for intelligent electric vehicles.The comprehensive and systematic treatment of practical issues around switched reluctance motor considering vehicle requirments is one of the major features of the book. The book can benefit researchers, engineers, and graduate students in fields of switched reluctance motor, electric vehicle drive system, regenerative braking system, motor-suspension system, etc.

Download or read book Proceedings of China SAE Congress 2018 Selected Papers written by China Society of Automotive Engineers (China SAE) and published by Springer Nature. This book was released on 2019-10-25 with total page 1004 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Proceedings volume gathers outstanding papers submitted to Proceedings of China SAE Congress 2018: Selected Papers, the majority of which are from China – the largest car-maker as well as most dynamic car market in the world. The book covers a wide range of automotive topics, presenting the latest technical advances and approaches to help technicians solve the practical problems that most affect their daily work. It is intended for researchers, engineers and postgraduate students in the fields of automotive engineering and related areas.

Download or read book Control of Linear Parameter Varying Systems with Applications written by Javad Mohammadpour and published by Springer Science & Business Media. This book was released on 2012-03-08 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt: Control of Linear Parameter Varying Systems compiles state-of-the-art contributions on novel analytical and computational methods for addressing system identification, model reduction, performance analysis and feedback control design and addresses address theoretical developments, novel computational approaches and illustrative applications to various fields. Part I discusses modeling and system identification of linear parameter varying systems, Part II covers the importance of analysis and control design when working with linear parameter varying systems (LPVS) , Finally, Part III presents an applications based approach to linear parameter varying systems, including modeling of a turbocharged diesel engines, Multivariable control of wind turbines, modeling and control of aircraft engines, control of an autonomous underwater vehicles and analysis and synthesis of re-entry vehicles.

Download or read book Practical Control of Electric Machines for EV HEVs written by Shuiwen Shen and published by Springer Nature. This book was released on 2023-09-01 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: Upon the ongoing profound revolution in the automotive industry, this book is primarily intended to give guidance on the practical design of traction motor control for pure electric vehicles (EVs) and hybrid electric vehicles (HEVs). An overview of the state-of-the-art motor types is provided to help understanding the background of automotive motor drives and the EV/HEV motor control specifications. Using AC induction motor control as a benchmark example, it addresses the motor control techniques by means of design, analysis, examples with MATLAB scripts wherever applicable, and practical control software architecture diagrams. In particular, an extensive analysis and discussion are made on the widely used vector control method together with multiple optimization schemes. As such, it gives coverage of the electric traction control including dynamics, efficiency, and the high-speed power capability, taking into account the constraints of vehicle configuration and requirements. The vector control and optimization strategies presented in this book can be ported across to other AC motor types without losing much generality. This book tries to bridge the gap between theory and practicality. Beginning with basic motor theory and completing the motor control design by introducing voltage source inverter (VSI) pulse width modulation (PWM) techniques, it helps the reader take a step-by-step approach from understanding fundamental motor characteristics through to practical design of in-depth motor control strategies.

Download or read book Design and Advanced Robust Chassis Dynamics Control for X by Wire Unmanned Ground Vehicle written by Jun NI and published by Springer Nature. This book was released on 2022-05-31 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: X-by-wire Unmanned Ground Vehicles (UGVs) have been attracting increased attention for various civilian or military applications. The x-by-wire techniques (drive-by-wire, steer-by-wire, and brake-by-wire techniques) provide the possibility of achieving novel vehicle design and advanced dynamics control, which can significantly improve the overall performance, maneuverability, and mobility of the UGVs. However, there are few full x-by-wire UGVs prototype models reported in the world. Therefore, there is no book that can fully describe the design, configuration, and dynamics control approach of full x-by-wire UGVs, which makes it difficult for readers to study this hot and interesting topic. In this book, we use a full x-by-wire UGV, developed by our group, as the example. This UGV is completely x-by-wire with four in-wheel motors driven and a four-wheel independent steer steer. In this book, the overall design of the UGV, the design of the key subsystems (battery pack system, in-wheel motor-driven system, independent steer system, remote and autonomous control system), and the dynamics control approach will be introduced in detail, and the experiment's results will be provided to validate the proposed dynamics control approach.