Electric powertrain pdf download






















Practical issues, such as fleet management, coordinated operation, repurposing of batteries, and environmental impact of recycling and disposal, need to be carefully studied in the context of an ageing grid infrastructure.

This book explores such a perspective with contributions from leading experts on planning, analysis, optimization, and management of electrified transportation and the transportation infrastructure.

The primary purpose of this book is to capture state-of-the-art development in smart microgrid management with EV integration and their applications. It also aims to identify potential research directions and technologies that will facilitate insight generation in various domains, from smart homes to smart cities, and within industry, business, and consumer applications.

We expect the book to serve as a reference for a larger audience, including power system architects, practitioners, developers, new researchers, and graduate-level students, especially for emerging clean energy and transportation electrification sectors in the Middle East and Southeast Asia. It establishes the dynamic models for driving system of electric vehicle and hybrid electric vehicle under various working conditions.

And the nonlinear dynamics theory is applied to the qualitative analysis and quantitative calculation for the models.

The theoretical analysis results are applied to guide the optimization of control strategies. In the end of each chapter, corresponding simulations or experiments are provided to verify the corresponding instances which are carefully selected. This book will give some guidance to readers when they deal with nonlinear dynamics problems of vehicles in the future and provide theoretical bases for the further study of the nonlinear dynamics for driving system of electric vehicle and hybrid electric vehicle.

The book is written for engineer of electric vehicle and hybrid vehicle, teachers and students majoring in automobile and automation. The contents are from the author's final thesis securing his Ph. The book contains seven chapters. Chapter 1 introduces the motivation of the research.

Chapter 2 reviews five types of injury hazards that the occupants might suffer during crashes, addressing the high-voltage problem.

In Chapters 3, 4, and 5, different winding-based discharge techniques are developed. The first part of the book begins with a historical overview of electromobility and the related environmental impacts motivating the development of the electric powertrain. Vehicular requirements for electromechanical propulsion are then presented. The second part of the book features in-depth analysis of the electric powertrain traction machines, with a particular focus on the induction machine and the surface- and interior-permanent magnet ac machines.

The third part of the book features the theory and applications for the propulsion, charging, accessory, and auxiliary power electronics converters.

Chapters are presented on isolated and non-isolated dc-dc converters, traction inverters, and battery charging. The fourth part presents the introductory and applied electromagnetism required as a foundation throughout the book. Electric Powertrain: Energy Systems, Power Electronics and Drives for Hybrid, Electric and Fuel Cell Vehicles is an important professional resource for practitioners and researchers in the battery, hybrid, and fuel cell EV transportation industry.

The book is a structured holistic textbook for the teaching of the fundamental theories and applications of energy sources, power electronics, and electric machines and drives to engineering undergraduate and postgraduate students. Textbook Structure and Suggested Teaching Curriculum This is primarily an engineering textbook covering the automotive powertrain, energy storage and energy conversion, power electronics, and electrical machines.

A significant additional focus is placed on the engineering design, the energy for transportation, and the related environmental impacts. This textbook is an educational tool for practicing engineers and others, such as transportation policy planners and regulators. The modern automobile is used as the vehicle upon which to base the theory and applications, which makes the book a useful educational reference for our industry colleagues, from chemists to engineers.

This material is also written to be of interest to the general reader, who may have little or no interest in the power electronics and machines. Introductory science, mathematics, and an inquiring mind suffice for some chapters. The general reader can read the introduction to each of the chapters and move to the next as soon as the material gets too advanced for him or her. The overall gear ratio is achieved in two stages via an intermediate shaft with a spur-gear drive.

For the e-up! This arrangement also reduces the superimposed excitation of the natural frequencies of the electric motor and the transmission, thus further optimising the acoustic characteristics of the powertrain.

For the drivetrain of the e-Golf, the higher mass of the electric motor, the different number of gear teeth and therefore the different natural frequencies made it possible to use a maximum speed of 12, rpm for the electric motor while still maintaining equally good acoustics. With its overall gear ratio of 9. In order to minimise acoustic excitation, a three-point bearing was chosen for the rotor and transmission drive shafts.

This rules out the possibility of mechanical tension occurring in the installation of the shafts. Special attention was also paid to the gearing. Gear meshing was optimised and gearing quality was improved accordingly.

A high level of reluctance torque ensures that maximum power can be maintained from rated speed up to maximum speed. The drive system has also been configured to provide its full performance across the entire voltage range, even if the traction battery has a low state of charge. This ensures reproducible driving characteristics, for example for overtaking manoeuvres on the open road.

The drive system layout was derived from a detailed evaluation of the energy flows in the electric motor map for various driving cycles. The numbers of pole pairs were already selected during the magnetic circuit design process to ensure that the cars have an efficiency advantage in inner-city driving compared Technical data e-up! This and other efficiency measures on the vehicle enable the cars to deliver attractive performance in customer operation and to offer a high degree of driving enjoyment coupled with a low energy consumption that is groundbreaking for the entire market.

In competition with the electric vehicles available on the market, the e-up! An anti-bucking control model in the power electronics evaluates the speed of the electric motor and the signals from the ESP control unit to calculate a corresponding damping torque that is superimposed on the set-point torque value.

The anti-bucking function, which is an innovative feature for electric vehicles, successfully suppresses drivetrain vibrations, thus preventing oscillation of the drivetrain. This results in reduced torsional loads on the drivetrain and therefore to a significant increase in driving comfort.

The control system takes into account all torque demands made by the driver, the transmission control unit and the operating strategy, including energy recuperation.

Furthermore, it also coordinates torque input from the vehicle assistance systems and the brake control system. The scalability of the software enables it to be used in all new powertrains. The objectives of energy efficiency and zero emissions in road transportation imply a paradigm shift in the concept of the automobile regarding design, materials, and propulsion technology.

A redesign of the electric and electronic architecture provides in many aspects additional potential for reaching these goals. At the same time, standardization within a broad range of features, components and systems is a key enabling factor for a successful market entry of the electric vehicle EV.

It would lower production cost, increase interoperability and compatibilities, and sustain market penetration. Hence, novel architectures and testing concepts and standardization approaches for the EV have been the topic of an expert workshop of the European Green Vehicles Initiative PPP.

This book contains the contributions of current European research projects on EV architecture and an expert view on the status of EV standardization. The target audience primarily comprises researchers and experts in the field. Inside, you'll find complete details on the hybrid powertrain and all the required components, including the motor, battery, and chassis. The book covers the plug-in hybrids currently on the market as well as hybrid conversion companies, conversion kits, and related resources.

Pictures, diagrams, charts, and graphs illustrate each step along the way. With this how-to guide on hand, you'll be behind the wheel of your own plug-in hybrid electric automobile in no time! This book includes approaches that address the optimization of total cost of ownership. Moreover, it presents alternative models of ownership, financing and leasing.

The editors present state-of-the-art insights from international experts, including real-world case studies.



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