Preface... xi. Chapter 1 Introduction... 1 References...8

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2 Contents Preface xi Chapter 1 Introduction References...8 Chapter 2 Friction and Friction Materials Introduction Friction Materials: Composition, Manufacture and Properties...14 Friction Material Specification Operational Effects Wear...30 Chapter Summary...32 References...33 Chapter 3 Braking System Design for Passenger Cars and Light Vans Introduction Weight Transfer During Braking...36 Nomenclature...37 Tyre/Road Adhesion Braking Force and Wheel Slip...46 Braking and Lateral Forces in Tyres Brake Force Distribution...52 Wheel Lock and Vehicle Stability During Braking Braking Efficiency Adhesion Utilisation Chapter Summary...64 References...65 Chapter 4 Braking System Design for Vehicle and Trailer Combinations Introduction Car and Light Trailer Car Towing a Trailer or Caravan with Overrun Brakes Rigid Truck Towing a Centre-Axle Trailer v

3 vi Contents Rigid Truck Towing a Chassis Trailer...80 Articulated Commercial Vehicles e Tractors and Semi-Trailers Load Sensing and Compatibility Chapter Summary References Chapter 5 Brake Design Analysis Introduction Disc Brakes Basic Principles Torque Generated by a Disc Brake Friction Interface Contact and Pressure Distribution in Disc Brakes Drum Brakes Basic Principles Torque Generated by a Drum Brake Types of Drum Brake Friction Interface Contact and Pressure Distribution in Drum Brakes Drum Brake Actuation Brake Factor and hc * for Air-Actuated Commercial Vehicle Brakes Chapter Summary References Chapter 6 Brake System Layout Design Introduction Overview of the Vehicle Braking System Layout Design Process Step Step Passenger Car and Light Commercial Vehicle Braking Systems with Hydraulic Actuation Step 3 Design the Hydraulic Actuation System Step 3.1 Specify the Actuation Mechanism (Hydraulic System) Step 3.2 Design the Brake Actuators (Hydraulic System) Step 3.3 Design the Master Actuator (Brake Pedal) System (Hydraulic System) Brake Pedal Master Cylinder Brake Servo (Booster) Brake Pedal Feel and Fluid Consumption

4 Contents vii Step 4 Verify the Design and Check Compliance with Legislative Requirements (UN Regulation 13H) Step 4.1 Intact System Step 4.2 Partial System Failure Step 4.3 Parking Commercial Vehicle Braking Systems with Pneumatic Actuation Step 3 Design the Pneumatic Actuation System Step 3.1 Specify the Actuation Mechanism (Pneumatic System). 198 Step 3.2 Design the Brake Actuators Step 3.3 Design the Master Actuator (Brake Pedal) System (Pneumatic System) Step 4 Verify the Design and Check Compliance with Legislative Requirements (UN Regulation 13) Developments in Road Vehicle Brake Actuation Systems Chapter Summary References Chapter 7 Thermal Effects in Friction Brakes Introduction Heat Energy and Power in Friction Brakes Braking Energy Management and Materials Brake Thermal Analysis Friction Surface Temperature Prediction Using Analytical Methods Brake Temperature, Stress and Deformation Prediction Using Computational Methods Heat Dissipation in Brakes Convective Heat Transfer Conductive Heat Transfer Radiative Heat Transfer Chapter Summary References Chapter 8 Braking Legislation Introduction European Legislation for Road Vehicle Braking Braking Regulations UN Regulation 13H (Category M 1 and N 1 Vehicles) UN Regulation 13 (Category M, N and O Vehicles) US Road Vehicle Braking Legislation UN Regulation

5 viii Contents Complex Electronic Vehicle Control Systems Brake Assist Systems Regenerative Braking Systems Chapter Summary References Chapter 9 Brake Testing Introduction Instrumentation and Data Acquisition in Experimental Brake Testing Temperature Deceleration Torque Force Pressure Displacement and Distance Vibration Frequency, Amplitude and Phase Experimental Design, Test Procedures and Protocols for Brake Testing Test Vehicles, Dynamometers and Rigs Brake Experimental Test Procedures Preparation, Bedding and Burnishing Braking Performance Wear Test Procedures Standardised Test Procedures Brake Test Data Interpretation and Analysis Chapter Summary References Chapter 10 Brake Noise and Judder Introduction Brake Noise Review The Source of Brake Noise System Response Modal Analysis in Brake Noise Variability in Brake Noise Brake Judder Chapter Summary References

6 Contents ix Chapter 11 Electronic Braking Systems Introduction Antilock Braking System (ABS) ABS Technology and Control Strategy Options Measurement of ABS Efficiency Traction Control System (TCS) Electronic Stability Control (ESC) Rollover Stability Control (RSC) Electronic Brakeforce Distribution (EBD) Emergency Brake Assist (EBA) Adaptive Cruise Control (ACC) Collision Mitigation by Braking (CMbB) Electric Parking Brake (EPB) Systems and Hill Start Assist (HSA) Trailer Sway Control (TSC) Torque Vectoring by Braking (TVbB) Engine Drag Control (EDC) ESC Mode Switching Regenerative Braking System Warnings and Driver Interfaces with Electronic Braking Chapter Summary References Chapter 12 Case Studies in the Braking of Road Vehicles Introduction Brake System Design Verification Braking Performance Variation Interaction Between the Brakes and the Vehicle Mixed-Mode Braking Systems Chapter Summary References Glossary Index

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