Karlsruhe24/09/2014

CARMAKERMOTORSPORTIN

Karlsruhe, 24/09/2014

Fabien CHENINFabien GEFFROY

Contents

01

Introduction

• Lead the team forward

• Personalization

Why CarMaker ?

• Car Modeling• Limited Slip Differential

• Tire

• Suspension

• Aerodynamics

• Correlation• Track Modelling

• Electronics

• Driver Correlation

• Vehicle Correlation

Modelling

• Pure Performance Criteria

• Driving Criteria

Utilization

Innovation

Conclusion

Team

02

Introduction

Why CarMaker ?

Modelling

Utilization

Innovation

Conclusion

• Founded in December 2011 by Sébastien Loeb & Dominique HEINTZ• Composed of fifteen professionals• Involved in various competitions:

• Vehicle Dynamics expertise

24 Hours Of Le Mans

European Le Mans Series

GT Championship

Porsche SuperCup

Lead the team forward

03

Steady state simulation

• Simplified Models

• Implementationduration reduced

Dynamicsimulation

• Speed-dependent model

• Every physicalphenomenon modeled

• Adaptive driver model

• Understand interaction between all the element of a car • Reduce the spectrum of settings during real tests

Introduction

Why CarMaker

Modelling

Utilization

Innovation

Conclusion

Personalization

04

• Motorsport and automotive category require specific needs :• Aerodynamics in Motorsport• Comfort in Industry

• Adapt IPG CarMaker to these needs:

Open IntegrationPlatform

Adaptation

Innovation

Introduction

Why CarMaker

Modelling

Utilization

Innovation

Conclusion

Car Modelling Correlation

Limited Slip Differential Tire Suspension Aerodynamics

05

Engine &

Transmission

Aerodynamic

Suspension kinematic & compliance

Chassis

Tires

Limited slip differential3rd Spring

Introduction

Why CarMaker

Modelling

Utilization

Innovation

Conclusion

Limited Slip Differential Tire Suspension Aerodynamics

Car Modelling Correlation

06

Introduction

Why CarMaker

Modelling

Utilization

Innovation

ConclusionIPG

Viscoélastique Free Driveline

SLR Characteristic

Curves

Limited SlipDifferential

with

Preload

Car Modelling Correlation

07

Introduction

Why CarMaker

Modelling

Utilization

Innovation

Conclusion

Limited Slip Differential Tire Suspension Aerodynamics

Flat trackmeasurement

Skid Trailer

Tire modelling

Car Modelling Correlation

08

Introduction

Why CarMaker

Modelling

Utilization

Innovation

Conclusion

Wheel Input

LoadInclination

Velocity

Forces at

Contact patch

Tire Rolling Radius

To Wheel Center By CarMaker

Limited Slip Differential Tire Suspension Aerodynamics

• CPI Model

Car Modelling Correlation

09

Introduction

Why CarMaker

Modelling

Utilization

Innovation

Conclusion

Contact PatchCalculation

Tire LoadedRadius

Tire Rolling Radius

Forces / Torque

at Contact patch

To Wheel Center By

SLR

• STI Model

Limited Slip Differential Tire Suspension Aerodynamics

Car Modelling Correlation

10

Introduction

Why CarMaker

Modelling

Utilization

Innovation

Conclusion

3rd Spring

Average SpringDeflection

Static Gap

Ride Height Control

Limited Slip Differential Tire Suspension Aerodynamics

Car Modelling Correlation

11

Introduction

Why CarMaker

Modelling

Utilization

Innovation

Conclusion

To Wheel Center By

SLR

AerodynamicDownforce

AerodynamicDrag

AerodynamicBalance

• Correction of tire crushing• Use of IPG Body Sensor to modelize ride heigth behaviour• Application of aerodynamic drag & downforce (CLA and CDA)

Limited Slip Differential Tire Suspension Aerodynamics

Car Modelling Correlation

12

Introduction

Why CarMaker

Modelling

Utilization

Innovation

Conclusion

To Wheel Center By

SLR

• Track Modelling

• Development of tools for modeling track• GPS measurements coupled with an inertial measurement unit• Use of the Kalman filter to reduce the measurement noise

Track Modelling Electronics Driver Correlation Vehicle Correlation

13

Introduction

Why CarMaker

Modelling

Utilization

Innovation

Conclusion

To Wheel Center By

SLR

• Beams development • Autonomous assembly implantable on any vehicle • Additional Systems using this architecture in the vehicle

• Implementation of specific sensors• Standard sensors: stress, temperature• Specific sensors: slip angle, tire pressure sensors

Car Modelling Correlation

Track Modelling Electronics river Correlation Vehicle Correlation

14

Introduction

Why CarMaker

Modelling

Utilization

Innovation

Conclusion

To Wheel Center By

SLR

Car Modelling Correlation

Track Modelling Electronics Driver Correlation hicle Correlation

15

Introduction

Why CarMaker

Modelling

Utilization

Innovation

Conclusion

To Wheel Center By

SLR

Car Modelling Correlation

Track Modelling Electronics Driver Correlation Vehicle Correlation

16

Introduction

Why CarMaker

Modelling

Utilization

Innovation

Conclusion

To Wheel Center By

SLR

Car Modelling Correlation

Track Modelling Electronics Driver Correlation Vehicle Correlation

VIDEO

Pure Performance Criteria Driving Criteria

17

Introduction

Why CarMaker

Modelling

Utilization

Innovation

Conclusion

To Wheel Center By

SLR

Pure Performance Criteria Driving Criteria

18

Introduction

Why CarMaker

Modelling

Utilization

Innovation

Conclusion

To Wheel Center By

SLR

19

Introduction

Why CarMaker

Modelling

Utilization

Innovation

Conclusion

To Wheel Center By

SLR

Electric energy management

Vehicle dynamics simulation

Complete car optimisation

Formula E

20

Introduction

Why CarMaker

Modelling

Utilization

Innovation

Conclusion

To Wheel Center By

SLR

Complete vehicle

dynamicsexpertise

Steady state simulation

Dynamic simulation

Powerful tool Adaptation Innovation