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Vehicle Powertrain Systems

Book Description

The powertrain is at the heart of vehicle design; the engine – whether it is a conventional, hybrid or electric design – provides the motive power, which is then managed and controlled through the transmission and final drive components. The overall powertrain system therefore defines the dynamic performance and character of the vehicle.

The design of the powertrain has conventionally been tackled by analyzing each of the subsystems individually and the individual components, for example, engine, transmission and driveline have received considerable attention in textbooks over the past decades. The key theme of this book is to take a systems approach – to look at the integration of the components so that the whole powertrain system meets the demands of overall energy efficiency and good drivability.

Vehicle Powertrain Systems provides a thorough description and analysis of all the powertrain components and then treats them together so that the overall performance of the vehicle can be understood and calculated. The text is well supported by practical problems and worked examples. Extensive use is made of the MATLAB(R)  software and many example programmes for vehicle calculations are provided in the text.

Key features:

  • Structured approach to explaining the fundamentals of powertrain engineering
  • Integration of powertrain components into overall vehicle design
  • Emphasis on practical vehicle design issues
  • Extensive use of practical problems and worked examples
  • Provision of MATLAB(R) programmes for the reader to use in vehicle performance calculations

This comprehensive and integrated analysis of vehicle powertrain engineering provides an invaluable resource for undergraduate and postgraduate automotive engineering students and is a useful reference for practicing engineers in the vehicle industry

Table of Contents

  1. Cover
  2. Title Page
  3. Copyright
  4. Dedication
  5. About the Authors
  6. Abbreviations
  7. Preface
  8. Chapter 1: Vehicle Powertrain Concepts
    1. 1.1 Powertrain Systems
    2. 1.2 Powertrain Components
    3. 1.3 Vehicle Performance
    4. 1.4 Driver Behaviour
    5. 1.5 The Role of Modelling
    6. 1.6 Aim of the Book
    7. Further Reading
    8. References
  9. Chapter 2: Power Generation Characteristics of Internal Combustion Engines
    1. 2.1 Introduction
    2. 2.2 Engine Power Generation Principles
    3. 2.3 Engine Modelling
    4. 2.4 Multi-cylinder Engines
    5. 2.5 Engine Torque Maps
    6. 2.6 Magic Torque (MT) Formula for Engine Torque
    7. 2.7 Engine Management System
    8. 2.8 Net Output Power
    9. 2.9 Conclusion
    10. 2.10 Review Questions
    11. 2.11 Problems
    12. Further Reading
    13. References
  10. Chapter 3: Vehicle Longitudinal Dynamics
    1. 3.1 Introduction
    2. 3.2 Torque Generators
    3. 3.3 Tractive Force
    4. 3.4 Resistive Forces
    5. 3.5 Vehicle Constant Power Performance (CPP)
    6. 3.6 Constant Torque Performance (CTP)
    7. 3.7 Fixed Throttle Performance (FTP)
    8. 3.8 Throttle Pedal Cycle Performance (PCP)
    9. 3.9 Effect of Rotating Masses
    10. 3.10 Tyre Slip
    11. 3.11 Performance on a Slope
    12. 3.12 Vehicle Coast Down
    13. 3.13 Driveline Losses
    14. 3.14 Conclusion
    15. 3.15 Review Questions
    16. 3.16 Problems
    17. Further Reading
    18. References
  11. Chapter 4: Transmissions
    1. 4.1 Introduction
    2. 4.2 The Need for a Gearbox
    3. 4.3 Design of Gearbox Ratios
    4. 4.4 Gearbox Kinematics and Tooth Numbers
    5. 4.5 Manual Transmissions
    6. 4.6 Automatic Transmissions
    7. 4.7 CVTs
    8. 4.8 Conclusion
    9. 4.9 Review Questions
    10. 4.10 Problems
    11. 4.11 Further Reading
    12. References
  12. Chapter 5: Fuel Consumption
    1. 5.1 Introduction
    2. 5.2 Engine Energy Consumption
    3. 5.3 Driving Cycles
    4. 5.4 Vehicle Fuel Consumption
    5. 5.5 Shifting Effects
    6. 5.6 Software
    7. 5.7 Automated Gearshifts
    8. 5.8 Other Solutions for Fuel Efficiency
    9. 5.9 Conclusion
    10. 5.10 Review Questions
    11. 5.11 Problems
    12. Further Reading
    13. References
  13. Chapter 6: Driveline Dynamics
    1. 6.1 Introduction
    2. 6.2 Modelling Driveline Dynamics
    3. 6.3 Bond Graph Models of Driveline Components
    4. 6.4 Driveline Models
    5. 6.5 Analysis
    6. 6.6 Conclusion
    7. 6.7 Review Questions
    8. 6.8 Problems
    9. 6.9 Further Reading
    10. References
  14. Chapter 7: Hybrid Electric Vehicles
    1. 7.1 Introduction
    2. 7.2 Types of Hybrid Electric Vehicles
    3. 7.3 Power Split Devices
    4. 7.4 HEV Component Characteristics
    5. 7.5 HEV Performance Analysis
    6. 7.6 HEV Component Sizing
    7. 7.7 Power Management
    8. 7.8 Conclusion
    9. 7.9 Review Questions
    10. 7.10 Problems
    11. Further Reading
    12. References
  15. Appendix: An Introduction to Bond Graph Modelling
    1. Basic Concept
    2. Standard Elements
    3. Constructing Bond Graphs
    4. Equations of Motion
  16. Index