Vehicle dynamics

Author(s)

    • Meywerk, Martin

Bibliographic Information

Vehicle dynamics

Martin Meywerk

(Automotive series)

John Wiley & Sons, Inc., c2015

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Note

Includes bibliographical references (p. [329]-330) and index

Description and Table of Contents

Description

Comprehensively covers the fundamentals of vehicle dynamics with application to automotive mechatronics Presents a number of different design, analysis and implementation considerations related to automobiles, including power requirements, converters, performance, fuel consumption and vehicle dynamic models Covers the dynamics, modeling and control of not only the entire vehicle system, but also of key elements of the vehicle such as transmissions, and hybrid systems integration Includes exercise problems and MATLAB (R) codes Accompanied by a website hosting animations

Table of Contents

Foreword xi Series Preface xiii Preface xv List of Abbreviations and Symbols xvii 1 Introduction 1 1.1 Introductory Remarks 3 1.2 Motion of the Vehicle 4 1.3 Questions and Exercises 8 2 The Wheel 11 2.1 Equations of Motion of the Wheel 11 2.2 Wheel Resistances 14 2.2.1 Rolling Resistance 14 2.2.2 Aquaplaning 18 2.2.3 Bearing Resistance 19 2.2.4 Toe-In/Toe-Out Resistance 19 2.3 Tyre Longitudinal Force Coefficient, Slip 20 2.4 Questions and Exercises 24 3 Driving Resistances, Power Requirement 27 3.1 Aerodynamic Drag 27 3.2 Gradient Resistance 29 3.3 Acceleration Resistance 29 3.4 Equation of Motion for the Entire Vehicle 32 3.5 Performance 34 3.6 Questions and Exercises 39 4 Converters 43 4.1 Clutch, Rotational Speed Converter 45 4.2 Transmission, Torque Converter 48 4.3 Questions and Exercises 54 5 Driving Performance Diagrams, Fuel Consumption 57 5.1 Maximum Speed without Gradient 60 5.2 Gradeability 61 5.3 Acceleration Capability 61 5.4 Fuel Consumption 63 5.5 Fuel Consumption Test Procedures 68 5.6 Questions and Exercises 70 6 Driving Limits 73 6.1 Equations of Motion 74 6.2 Braking Process 79 6.3 Braking Rate 84 6.4 Questions and Exercises 91 7 Hybrid Powertrains 93 7.1 Principal Functionalities 93 7.2 Topologies of Hybrid Powertrains 99 7.3 Regenerative Braking and Charging 101 7.4 Questions and Exercises 106 8 Adaptive Cruise Control 107 8.1 Components and Control Algorithm 107 8.2 Measurement of Distances and Relative Velocities 112 8.3 Approach Ability 117 8.4 Questions and Exercises 118 9 Ride Dynamics 121 9.1 Vibration Caused by Uneven Roads 124 9.1.1 Damped Harmonic Oscillator 124 9.1.2 Assessment Criteria 128 9.1.3 Stochastic Irregularities 130 9.1.4 Conflict between Safety and Comfort 132 9.2 Oscillations of Powertrains 144 9.2.1 Torsional Oscillators 144 9.2.2 Centrifugal Pendulum Vibration Absorbers 147 9.3 Examples 151 9.4 Questions and Exercises 152 10 Vehicle Substitute Models 155 10.1 Two-mass Substitute System 155 10.2 Two-axle Vehicle, Single-track Excitation 158 10.3 Non-linear Characteristic Curves 165 10.4 Questions and Exercises 167 11 Single-track Model, Tyre Slip Angle, Steering 169 11.1 Equations of Motion of the Single-track Model 169 11.2 Slip Angle 177 11.3 Steering 181 11.4 Linearized Equations of Motion of the Single-track Model 185 11.5 Relationship between Longitudinal Forces and Lateral Forces in the Contact Patch 188 11.6 Effect of Differentials when Cornering 189 11.7 Questions and Exercises 191 12 Circular Driving at a Constant Speed 193 12.1 Equations 193 12.2 Solution of the Equations 195 12.3 Geometric Aspects 197 12.4 Oversteering and Understeering 201 12.5 Questions and Exercises 205 13 Dynamic Behaviour 207 13.1 Stability of Steady-state Driving Conditions 207 13.2 Steering Behaviour 210 13.3 Crosswind Behaviour 213 13.4 Questions and Exercises 216 14 Influence of Wheel Load Transfer 217 14.1 Wheel Load Transfer without Considering Vehicle Roll 217 14.2 Wheel Load Transfer Considering Vehicle Roll 221 14.3 Questions and Exercises 228 15 Toe-in/Toe-out, Camber and Self-steering Coefficient 229 15.1 Toe-in/Toe-out, Camber 229 15.2 Questions and Exercises 233 16 Suspension Systems 235 16.1 Questions and Exercises 245 17 Torque and Speed Converters 247 17.1 Speed Converters, Clutches 247 17.2 Transmission 252 17.3 Questions and Exercises 258 18 Shock Absorbers, Springs and Brakes 259 18.1 Shock Absorbers 259 18.2 Ideal Active Suspension and Skyhook Damping 264 18.2.1 Ideal Active Suspension 264 18.2.2 Skyhook Dampers 267 18.3 Suspension Springs 269 18.4 Brake Systems 277 18.5 Questions and Exercises 281 19 Active Longitudinal and Lateral Systems 283 19.1 Main Components of ABS 283 19.2 ABS Operations 287 19.3 Build-up Delay of Yaw Moment 290 19.4 Traction Control System 293 19.5 Lateral Stability Systems 294 19.6 Hydraulic Units for ABS and ESP 296 19.7 Active Steering System 297 19.8 Questions and Exercises 298 20 Multi-body Systems 301 20.1 Kinematics of Rigid Bodies 302 20.2 Kinetic Energy of a Rigid Body 305 20.3 Components of Multi-body Systems 309 20.4 Orientation of Rigid Bodies 312 20.5 Derivation and Solution of the Equations 315 20.5.1 Derivation of the Equations 315 20.5.2 Solution of Equations 316 20.6 Applications of MBS 317 20.7 Questions and Exercises 322 Glossary 323 References 329 Index 331

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Details

  • NCID
    BB19233526
  • ISBN
    • 9781118971352
  • Country Code
    uk
  • Title Language Code
    eng
  • Text Language Code
    eng
  • Place of Publication
    Chichester, West Sussex, United Kingdom
  • Pages/Volumes
    xxiv, 335 p.
  • Size
    25 cm
  • Classification
  • Subject Headings
  • Parent Bibliography ID
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