Title

Thermal Magic Formula Based Tire Model for Simulation use in Racing Applications

Presenter Information

Tamas Erdos

Department

Mechanical and Aerospace Engineering

Major

Mechanical Engineering

Research Advisor

Hutcheson, Ryan Scott

Advisor's Department

Mechanical and Aerospace Engineering

Abstract

A new addition to the Magic Formula tire model is presented that will take thermal effects into account. A thermodynamic model is used to calculate the heat generation from the tire forces and hysteresis. An approximation of the tire surface temperature and force relationship is made with a non-linear function. Indoor tire testing data is used to fit the thermodynamic and grip modifying parameters.

The proposed model has the advantage of using a temperature/grip coupling function that accounts for the initial rise and eventual fall off of grip with rising temperature that is typical for racing tires. This feature can make it especially useful for tuning a race car and training a driver for short, highly tire temperature dependent events like qualifying or autocross.

Biography

Tamas is currently a senior in the department of Mechanical and Aerospace Engineering at Missouri S&T. He has been an active member of the Formula SAE team for the past four years and is the 2010-11 Chief Engineer. He intends to graduate with a Bachelor’s degree in Mechanical Engineering in December 2011.

Research Category

Engineering

Presentation Type

Oral Presentation

Document Type

Presentation

Award

Engineering oral presentation, Third place

Location

Ozark Room

Presentation Date

06 Apr 2011, 10:00 am - 10:30 am

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Apr 6th, 10:00 AM Apr 6th, 10:30 AM

Thermal Magic Formula Based Tire Model for Simulation use in Racing Applications

Ozark Room

A new addition to the Magic Formula tire model is presented that will take thermal effects into account. A thermodynamic model is used to calculate the heat generation from the tire forces and hysteresis. An approximation of the tire surface temperature and force relationship is made with a non-linear function. Indoor tire testing data is used to fit the thermodynamic and grip modifying parameters.

The proposed model has the advantage of using a temperature/grip coupling function that accounts for the initial rise and eventual fall off of grip with rising temperature that is typical for racing tires. This feature can make it especially useful for tuning a race car and training a driver for short, highly tire temperature dependent events like qualifying or autocross.