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Analysis Techniques for Racecar Data Acquisition.

By: Material type: TextTextPublisher: Warrendale : SAE International, 2014Copyright date: ©2014Edition: 2nd edDescription: 1 online resource (537 pages)Content type:
  • text
Media type:
  • computer
Carrier type:
  • online resource
ISBN:
  • 9780768080810
Subject(s): Genre/Form: Additional physical formats: Print version:: Analysis Techniques for Racecar Data AcquisitionDDC classification:
  • 629.282
LOC classification:
  • TL243 .S444 2014
Online resources:
Contents:
Intro -- Contents -- Preface to the Second Edition -- Preface to the First Edition -- Acknowledgments -- Chapter 1 Introduction -- 1.1 What Is This Book All About? -- 1.2 What Is Data Acquisition? -- 1.2.1 Data Acquisition Categories -- 1.2.2 Data Categories -- 1.2.3 Basic Data Acquisition Signals -- 1.2.4 Supplemental Data Acquisition Signals -- 1.2.5 Example of Parameters -- 1.3 Hardware -- 1.4 Recent Hardware Trends -- Chapter 2 Data Analysis Software Requirements -- 2.1 General Requirements for Data Acquisition Software -- 2.1.1 Software Features -- 2.2 Different Ways of Displaying Data -- 2.2.1 Time and Distance Plots -- 2.2.2 Track Maps -- 2.2.3 X-Y Graphs -- 2.2.4 Histograms -- 2.2.5 Run Charts -- 2.3 Keeping Notes with Data Files -- 2.4 Mathematical Channels -- 2.5 Data Overlays -- 2.6 Filtering -- 2.7 Exporting Data to Other Software Packages -- 2.8 Getting Organized -- 2.8.1 Channel Grouping -- 2.8.2 Channel Colors -- 2.8.3 Sensor Prep -- 2.8.4 Example Checklist -- 2.8.5 Pit Box Setup -- 2.8.6 Basic Tips -- Chapter 3 The Basics -- 3.1 Check the Car's Vital Signs -- 3.2 Lap Markers and Segment Times -- 3.3 Comparing Laps -- 3.4 Track Mapping -- 3.5 The Beginner's Data Logging Kit -- 3.5.1 Logging Engine RPM -- 3.5.2 Logging Vehicle Speed -- 3.5.3 Logging Throttle Position -- 3.5.4 Logging Steering Angle -- 3.5.5 Logging Lateral Acceleration -- 3.5.6 Logging Longitudinal Acceleration -- 3.5.7 Logging Suspension Travel -- 3.6 A Possible Approach to the Testing of Sensor Readings -- Chapter 4 Straight-Line Acceleration -- 4.1 Torque and Horsepower -- 4.1.1 Aerodynamic Drag -- 4.1.2 Calculating Torque and Power at the Wheels -- 4.2 Traction and Longitudinal Slip -- 4.3 TCS and Slip Ratios -- 4.4 Time versus Distance -- 4.5 The Importance of Corner Exiting Speed -- 4.6 Drag Racing Specifics -- 4.6.1 ET Bracket Racing -- Chapter 5 Braking.
5.1 Braking Quickness -- 5.2 Braking Effort -- 5.3 Braking Points -- 5.4 Lock-up -- 5.5 Brake Balance -- 5.6 Pedal Travel -- 5.7 ABS -- 5.8 Brake Temperature Measurement -- Chapter 6 Gearing -- 6.1 Up-shifting -- 6.1.1 Shifting Point -- 6.1.2 Shift Duration -- 6.2 Down-shifting -- 6.3 The Gear Chart -- 6.4 Total Gear Ratio Channel -- 6.5 Determining Correct Gear Ratios -- 6.6 Determining in Which Gear to Take a Corner -- Chapter 7 Cornering -- 7.1 The Cornering Sequence -- 7.2 The Traction Circle -- 7.3 Effects of Speed -- 7.4 Driver Activities That Indicate Vehicle Balance -- 7.4.1 Oversteer -- 7.4.2 Understeer -- 7.5 The Understeer Angle -- 7.6 Vehicle Balance with a Yaw Rate Sensor -- 7.7 Front and Rear Lateral Acceleration -- Chapter 8 Understanding Tire Performance -- 8.1 Estimating Grip Levels -- 8.2 Working with Tire Pressure Monitoring Systems -- 8.3 Working with Infrared Tire Temperature Sensors -- 8.4 Where Does Tire Temperature Come From? -- 8.5 Working Temperature Range of the Tires -- 8.6 Lateral Load Transfer and Tire Temperature -- 8.7 Tire Workload Distribution -- 8.8 Camber Evaluation with Tire Temperature Sensors -- 8.9 Tire Pressure Evaluation with Tire Temperature Sensors -- Chapter 9 Quantifying Roll Stiffness Distribution -- 9.1 Measuring Suspension Roll Angle -- 9.2 The Roll Gradient -- 9.3 Using Roll Gradients as a Setup Tool -- 9.4 Front to Rear Roll Angle Ratio -- 9.5 Using the Roll Ratio as a Setup Tool -- 9.6 Suspension Troubleshooting -- 9.7 Pitch Gradient -- Chapter 10 Wheel Loads and Weight Transfer -- 10.1 Lateral Weight Transfer -- 10.2 Longitudinal Weight Transfer -- 10.3 Banking and Grade Effects -- 10.4 Total Wheel Loads -- 10.5 Determining Wheel Loads with Modal Analysis -- 10.6 Measuring Wheel Loads with Suspension Load Cells -- 10.7 Tire Spring Rates -- 10.8 Chassis Torsion -- Chapter 11 Shock Absorbers.
11.1 Shock Absorber Velocity Analysis -- 11.2 Determining in Which Range to Tune the Shock Absorbers -- 11.3 Shock Speed Ranges -- 11.4 The Shock Speed Histogram -- 11.4.1 Shock Speed Histogram Shape-A Mathematical Approach -- 11.4.2 Shock Speed Histogram Shape-What Do We Want? -- 11.4.3 Statistical Analysis -- 11.4.3.1 Histogram Peak or Height of the Zero Bin -- 11.4.3.2 Average Shock Speed -- 11.4.3.3 Median -- 11.4.3.4 Variance and Standard Deviation -- 11.4.3.5 Skewness -- 11.4.3.6 Kurtosis -- 11.5 The Shock Speed Box Plot -- 11.6 Shock Speed Run Charts -- Chapter 12 Suspension Analysis in the Frequency Domain -- 12.1 Introducing Frequency Analysis -- 12.2 Frequency Analysis versus Time-Space Analysis -- 12.3 Theoretical Analysis -- 12.4 Suspension Optimization Using Frequency Analysis -- 12.5 Modal Analysis -- 12.6 Modal Frequency Issues -- 12.7 Nonlinear Considerations -- 12.8 Frequency Analysis from Sensor Data -- Chapter 13 Aerodynamics -- 13.1 Aerodynamic Measurements -- 13.2 Air Density -- 13.3 Dynamic Pressure -- 13.4 Ride Height Measurement -- 13.4.1 Ride Height Calculation from Suspension Movement -- 13.4.2 Ride Height Measurement with Laser Sensors -- 13.5 Estimating Drag and Downforce from Logged Data -- 13.6 The Coast-down Test -- 13.7 The Constant Velocity Test -- 13.8 A Worked out Example of a Straight-Line Test -- 13.9 Airbox Efficiency -- Chapter 14 Analyzing the Driver -- 14.1 Improving Driver Performance -- 14.2 Driving Style Evaluation -- 14.3 Throttle Application -- 14.3.1 The Throttle Histogram -- 14.3.2 Full Throttle Time -- 14.3.3 Throttle Acceptance -- 14.3.4 Throttle Speed -- 14.3.5 Coasting -- 14.4 Braking -- 14.4.1 Braking Effort -- 14.4.2 Braking Point and Length -- 14.4.3 Braking Speed -- 14.4.4 Braking Aggressiveness -- 14.4.5 Brake Release Smoothness -- 14.5 Shifting Gears -- 14.6 Steering -- 14.7 The Driving Line.
14.7.1 The Driving Line-Mathematical Definition -- 14.7.2 How to Determine the Correct Driving Line -- 14.7.3 Driving Line Analysis Using GPS -- 14.7.4 Driving Line Analysis Using Video Feed -- 14.8 Driver Consistency over Multiple Laps -- Chapter 15 Simulation Tools -- 15.1 Introduction -- 15.2 Suspension Kinematics Simulation -- 15.3 Lap Time Simulation -- 15.3.1 Levels of Lap Time Simulation -- 15.3.2 A Simple Point Mass Vehicle Model -- 15.3.3 Obtaining the Input Parameters for the Vehicle Model -- 15.3.4 The Tire Model -- 15.3.4.1 The Pacejka Longitudinal Tire Force Model -- 15.3.4.2 The Pacejka Lateral Tire Force Model -- 15.3.5 The Track Model -- 15.4 A Worked out Example -- 15.5 How to Integrate Lap Time Simulation in Daily Data Acquisition Tasks -- 15.5.1 Before the Meeting -- 15.5.2 During the Meeting -- 15.5.3 After the Meeting -- 15.6 Putting the Driver in the Simulation -- 15.6.1 Sim Racing -- 15.6.2 Motion-Based Driver-in-the-Loop Simulation -- Chapter 16 Using the Data Acquisition System for Race Strategy -- 16.1 Fuel Consumption -- 16.2 Lap Time Variation During a Race -- 16.2.1 Fuel Load Variation -- 16.2.2 Tire Wear -- 16.2.3 Driver Consistency -- Chapter 17 Data Analysis Using Metrics -- 17.1 What Are Metrics? -- 17.2 Why Use Metrics? -- 17.3 How to Create Metrics -- Chapter 18 Track Data -- 18.1 What Can Be Learned from the Data about the Racetrack? -- 18.2 Racetrack Metrics -- 18.3 Speed and Gear Histograms -- 18.4 The Friction Circle -- 18.5 How Bumpy Is the Track Surface? -- Chapter 19 Introduction to Measurement -- 19.1 Introduction -- 19.2 Analog-Digital Conversion: Accuracy Implications -- 19.3 Sensor Selection and Application -- 19.4 Measurement Uncertainty -- 19.5 Temperature Sensors -- 19.5.1 Thermocouple Temperature Sensors -- 19.5.2 Thermistors -- 19.5.3 Resistive Temperature Detectors.
19.5.4 Infrared Temperature Measurement -- 19.6 Pressure Sensors -- 19.7 Displacement Sensors -- 19.8 Acceleration Sensors -- 19.8.1 Capacitive Accelerometers -- 19.8.2 Piezoelectric Accelerometers -- 19.9 Speed Sensors -- 19.10 Strain Gages -- 19.11 Torque Sensors -- 19.12 The Pitot Tube -- 19.13 Oxygen Sensors -- 19.14 GPS -- 19.15 Laser Distance Sensors -- 19.16 Surface Acoustic Wave Technology -- List of Symbols -- References -- Bibliography -- Index -- About the Author.
Summary: Presents techniques for analysing data recorded by any vehicle's data acquisition system. The book details how to measure the performance of the vehicle and driver, what can be learned from it, and how this information can be used to advantage next time the vehicle hits the track.
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Intro -- Contents -- Preface to the Second Edition -- Preface to the First Edition -- Acknowledgments -- Chapter 1 Introduction -- 1.1 What Is This Book All About? -- 1.2 What Is Data Acquisition? -- 1.2.1 Data Acquisition Categories -- 1.2.2 Data Categories -- 1.2.3 Basic Data Acquisition Signals -- 1.2.4 Supplemental Data Acquisition Signals -- 1.2.5 Example of Parameters -- 1.3 Hardware -- 1.4 Recent Hardware Trends -- Chapter 2 Data Analysis Software Requirements -- 2.1 General Requirements for Data Acquisition Software -- 2.1.1 Software Features -- 2.2 Different Ways of Displaying Data -- 2.2.1 Time and Distance Plots -- 2.2.2 Track Maps -- 2.2.3 X-Y Graphs -- 2.2.4 Histograms -- 2.2.5 Run Charts -- 2.3 Keeping Notes with Data Files -- 2.4 Mathematical Channels -- 2.5 Data Overlays -- 2.6 Filtering -- 2.7 Exporting Data to Other Software Packages -- 2.8 Getting Organized -- 2.8.1 Channel Grouping -- 2.8.2 Channel Colors -- 2.8.3 Sensor Prep -- 2.8.4 Example Checklist -- 2.8.5 Pit Box Setup -- 2.8.6 Basic Tips -- Chapter 3 The Basics -- 3.1 Check the Car's Vital Signs -- 3.2 Lap Markers and Segment Times -- 3.3 Comparing Laps -- 3.4 Track Mapping -- 3.5 The Beginner's Data Logging Kit -- 3.5.1 Logging Engine RPM -- 3.5.2 Logging Vehicle Speed -- 3.5.3 Logging Throttle Position -- 3.5.4 Logging Steering Angle -- 3.5.5 Logging Lateral Acceleration -- 3.5.6 Logging Longitudinal Acceleration -- 3.5.7 Logging Suspension Travel -- 3.6 A Possible Approach to the Testing of Sensor Readings -- Chapter 4 Straight-Line Acceleration -- 4.1 Torque and Horsepower -- 4.1.1 Aerodynamic Drag -- 4.1.2 Calculating Torque and Power at the Wheels -- 4.2 Traction and Longitudinal Slip -- 4.3 TCS and Slip Ratios -- 4.4 Time versus Distance -- 4.5 The Importance of Corner Exiting Speed -- 4.6 Drag Racing Specifics -- 4.6.1 ET Bracket Racing -- Chapter 5 Braking.

5.1 Braking Quickness -- 5.2 Braking Effort -- 5.3 Braking Points -- 5.4 Lock-up -- 5.5 Brake Balance -- 5.6 Pedal Travel -- 5.7 ABS -- 5.8 Brake Temperature Measurement -- Chapter 6 Gearing -- 6.1 Up-shifting -- 6.1.1 Shifting Point -- 6.1.2 Shift Duration -- 6.2 Down-shifting -- 6.3 The Gear Chart -- 6.4 Total Gear Ratio Channel -- 6.5 Determining Correct Gear Ratios -- 6.6 Determining in Which Gear to Take a Corner -- Chapter 7 Cornering -- 7.1 The Cornering Sequence -- 7.2 The Traction Circle -- 7.3 Effects of Speed -- 7.4 Driver Activities That Indicate Vehicle Balance -- 7.4.1 Oversteer -- 7.4.2 Understeer -- 7.5 The Understeer Angle -- 7.6 Vehicle Balance with a Yaw Rate Sensor -- 7.7 Front and Rear Lateral Acceleration -- Chapter 8 Understanding Tire Performance -- 8.1 Estimating Grip Levels -- 8.2 Working with Tire Pressure Monitoring Systems -- 8.3 Working with Infrared Tire Temperature Sensors -- 8.4 Where Does Tire Temperature Come From? -- 8.5 Working Temperature Range of the Tires -- 8.6 Lateral Load Transfer and Tire Temperature -- 8.7 Tire Workload Distribution -- 8.8 Camber Evaluation with Tire Temperature Sensors -- 8.9 Tire Pressure Evaluation with Tire Temperature Sensors -- Chapter 9 Quantifying Roll Stiffness Distribution -- 9.1 Measuring Suspension Roll Angle -- 9.2 The Roll Gradient -- 9.3 Using Roll Gradients as a Setup Tool -- 9.4 Front to Rear Roll Angle Ratio -- 9.5 Using the Roll Ratio as a Setup Tool -- 9.6 Suspension Troubleshooting -- 9.7 Pitch Gradient -- Chapter 10 Wheel Loads and Weight Transfer -- 10.1 Lateral Weight Transfer -- 10.2 Longitudinal Weight Transfer -- 10.3 Banking and Grade Effects -- 10.4 Total Wheel Loads -- 10.5 Determining Wheel Loads with Modal Analysis -- 10.6 Measuring Wheel Loads with Suspension Load Cells -- 10.7 Tire Spring Rates -- 10.8 Chassis Torsion -- Chapter 11 Shock Absorbers.

11.1 Shock Absorber Velocity Analysis -- 11.2 Determining in Which Range to Tune the Shock Absorbers -- 11.3 Shock Speed Ranges -- 11.4 The Shock Speed Histogram -- 11.4.1 Shock Speed Histogram Shape-A Mathematical Approach -- 11.4.2 Shock Speed Histogram Shape-What Do We Want? -- 11.4.3 Statistical Analysis -- 11.4.3.1 Histogram Peak or Height of the Zero Bin -- 11.4.3.2 Average Shock Speed -- 11.4.3.3 Median -- 11.4.3.4 Variance and Standard Deviation -- 11.4.3.5 Skewness -- 11.4.3.6 Kurtosis -- 11.5 The Shock Speed Box Plot -- 11.6 Shock Speed Run Charts -- Chapter 12 Suspension Analysis in the Frequency Domain -- 12.1 Introducing Frequency Analysis -- 12.2 Frequency Analysis versus Time-Space Analysis -- 12.3 Theoretical Analysis -- 12.4 Suspension Optimization Using Frequency Analysis -- 12.5 Modal Analysis -- 12.6 Modal Frequency Issues -- 12.7 Nonlinear Considerations -- 12.8 Frequency Analysis from Sensor Data -- Chapter 13 Aerodynamics -- 13.1 Aerodynamic Measurements -- 13.2 Air Density -- 13.3 Dynamic Pressure -- 13.4 Ride Height Measurement -- 13.4.1 Ride Height Calculation from Suspension Movement -- 13.4.2 Ride Height Measurement with Laser Sensors -- 13.5 Estimating Drag and Downforce from Logged Data -- 13.6 The Coast-down Test -- 13.7 The Constant Velocity Test -- 13.8 A Worked out Example of a Straight-Line Test -- 13.9 Airbox Efficiency -- Chapter 14 Analyzing the Driver -- 14.1 Improving Driver Performance -- 14.2 Driving Style Evaluation -- 14.3 Throttle Application -- 14.3.1 The Throttle Histogram -- 14.3.2 Full Throttle Time -- 14.3.3 Throttle Acceptance -- 14.3.4 Throttle Speed -- 14.3.5 Coasting -- 14.4 Braking -- 14.4.1 Braking Effort -- 14.4.2 Braking Point and Length -- 14.4.3 Braking Speed -- 14.4.4 Braking Aggressiveness -- 14.4.5 Brake Release Smoothness -- 14.5 Shifting Gears -- 14.6 Steering -- 14.7 The Driving Line.

14.7.1 The Driving Line-Mathematical Definition -- 14.7.2 How to Determine the Correct Driving Line -- 14.7.3 Driving Line Analysis Using GPS -- 14.7.4 Driving Line Analysis Using Video Feed -- 14.8 Driver Consistency over Multiple Laps -- Chapter 15 Simulation Tools -- 15.1 Introduction -- 15.2 Suspension Kinematics Simulation -- 15.3 Lap Time Simulation -- 15.3.1 Levels of Lap Time Simulation -- 15.3.2 A Simple Point Mass Vehicle Model -- 15.3.3 Obtaining the Input Parameters for the Vehicle Model -- 15.3.4 The Tire Model -- 15.3.4.1 The Pacejka Longitudinal Tire Force Model -- 15.3.4.2 The Pacejka Lateral Tire Force Model -- 15.3.5 The Track Model -- 15.4 A Worked out Example -- 15.5 How to Integrate Lap Time Simulation in Daily Data Acquisition Tasks -- 15.5.1 Before the Meeting -- 15.5.2 During the Meeting -- 15.5.3 After the Meeting -- 15.6 Putting the Driver in the Simulation -- 15.6.1 Sim Racing -- 15.6.2 Motion-Based Driver-in-the-Loop Simulation -- Chapter 16 Using the Data Acquisition System for Race Strategy -- 16.1 Fuel Consumption -- 16.2 Lap Time Variation During a Race -- 16.2.1 Fuel Load Variation -- 16.2.2 Tire Wear -- 16.2.3 Driver Consistency -- Chapter 17 Data Analysis Using Metrics -- 17.1 What Are Metrics? -- 17.2 Why Use Metrics? -- 17.3 How to Create Metrics -- Chapter 18 Track Data -- 18.1 What Can Be Learned from the Data about the Racetrack? -- 18.2 Racetrack Metrics -- 18.3 Speed and Gear Histograms -- 18.4 The Friction Circle -- 18.5 How Bumpy Is the Track Surface? -- Chapter 19 Introduction to Measurement -- 19.1 Introduction -- 19.2 Analog-Digital Conversion: Accuracy Implications -- 19.3 Sensor Selection and Application -- 19.4 Measurement Uncertainty -- 19.5 Temperature Sensors -- 19.5.1 Thermocouple Temperature Sensors -- 19.5.2 Thermistors -- 19.5.3 Resistive Temperature Detectors.

19.5.4 Infrared Temperature Measurement -- 19.6 Pressure Sensors -- 19.7 Displacement Sensors -- 19.8 Acceleration Sensors -- 19.8.1 Capacitive Accelerometers -- 19.8.2 Piezoelectric Accelerometers -- 19.9 Speed Sensors -- 19.10 Strain Gages -- 19.11 Torque Sensors -- 19.12 The Pitot Tube -- 19.13 Oxygen Sensors -- 19.14 GPS -- 19.15 Laser Distance Sensors -- 19.16 Surface Acoustic Wave Technology -- List of Symbols -- References -- Bibliography -- Index -- About the Author.

Presents techniques for analysing data recorded by any vehicle's data acquisition system. The book details how to measure the performance of the vehicle and driver, what can be learned from it, and how this information can be used to advantage next time the vehicle hits the track.

Description based on publisher supplied metadata and other sources.

Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, 2024. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries.

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