CVD Tyre Data

TECHNICAL ARTICLE

ver. 2012/01/01 © Christopher Catto

http://sites.google.com/site/cattovehicledynamics/Articles/tyre-data

TYRE DATA

& USAGE

TECHNICAL ARTICLE



Table of Contents

Introduction

Tyre Models

Michelin Formula Nissan

Dunlop Le Mans Series

Avon F3

Avon F3000

Introduction

This document presents a sizeable amount of tyre data collected by the author from

different manufacturer sources. Most tyres are for racing purposes.

The data is useful for the creation of tyre models for simulation purposes in software

such as Pi Sim, Bosch Lapsim, Datas Racesim and many others.

The data is also useful for teams and manufacturers because in essence, the

chassis/suspension design has to be done around the tyres: the 4 contact patches are

the only thing connecting the car to the asphalt.

Tyre Models

One of the better known tyre models is that by Professor Pacejka of TNO Delft. The

older models do not take into account temperature dependency although this can be

experimented with.

Some of the data presented also contains a Delft ’96 coefficients table.

Avon has a tyre rig in the United Kingdom, as well as Dunlop. There is a reasonable

tyre rig at the Cranfield University Soham site which consists of a straight steel plate

with abrasive coating (representing the road) that can be moved underneath a rotating

wheel. The different wheel to road slip angle creates a force on the flat plate. If the

tyres are heated in an oven, the influence of tyre temperature can be understood

provided the tests are done quickly before the tyres cool.

TECHNICAL ARTICLE



Michelin Formula Nissan 26/64 – 13 Front

TECHNICAL ARTICLE



Radial Deflection / Load26/64-13, 0° Camber

0

5

10

15

20

25

30

0 100 200 300 400 500

Load (daN)

De

fle

cti

on

(m

m)

0,9 bar 1,2 bar 1,5 bar

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Radial Deflection / Load26/64-13, -3° Camber

0

5

10

15

20

25

30

0 100 200 300 400 500

Load (daN)

De

fle

cti

on

(m

m)

0,9 bar 1,2 bar 1,5 bar

TECHNICAL ARTICLE



Lateral Deflection / Load26/64-13, 320 daN

0

2

4

6

8

10

12

14

16

18

20

22

24

0 100 200 300 400

Load (daN)

De

fle

cti

on

(m

m)

0,9 bar 1,2 bar 1,5 bar

TECHNICAL ARTICLE



26/64-13 for Formula NissanDynamic Radius (for ride height)

275,0

280,0

285,0

290,0

295,0

300,0

305,0

310,0

0 50 100 150 200 250 300

Speed (km/h)

Rad

ius

(m

m)

200 daN - Camber=0° 200 daN - Camber=2°



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26/64-13 for Formula NissanRolling Circumference (for gearing)

1955,0

1960,0

1965,0

1970,0

1975,0

1980,0

0 50 100 150 200 250 300

Speed (km/h)

Rad

ius

(m

m)




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Michelin Formula Nissan 32/66 – 13 Rear

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Radial Deflection / Load32/66-13, 0° Camber

0

5

10

15

20

25

30

35

0 100 200 300 400 500 600

Load (daN)

De

fle

cti

on

(m

m)

0,9 bar 1,2 bar 1,5 bar

TECHNICAL ARTICLE



Radial Deflection / Load32/66-13, -2° Camber

0

5

10

15

20

25

30

35

0 100 200 300 400 500 600

Load (daN)

De

fle

cti

on

(m

m)

0,9 bar 1,2 bar 1,5 bar

TECHNICAL ARTICLE



Lateral Deflection / Load32/66-13, 500 daN

0

5

10

15

20

25

30

35

40

45

50

0 100 200 300 400 500 600 700

Load (daN)

De

fle

cti

on

(m

m)

0,9 bar 1,2 bar 1,5 bar

TECHNICAL ARTICLE



32/66-13 for Formula NissanDynamic Radius (for ride height)

290,0

295,0

300,0

305,0

310,0

315,0

320,0

325,0

0 50 100 150 200 250 300

Speed (km/h)

Ra

diu

s (

mm

)




TECHNICAL ARTICLE



32/66-13 for Formula NissanRolling Circumference (for gearing)

2025,0

2030,0

2035,0

2040,0

2045,0

2050,0

0 50 100 150 200 250 300

Speed (km/h)

Rad

ius

(m

m)




TECHNICAL ARTICLE



Dunlop Le Mans Series 300/660R18 B84D (12.5” x 18”) 2.0 bar

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Dunlop Le Mans Series 310/710R18 C32D (13” x 18”) 1.9 bar

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Avon 180/550R13 F3 2004 Control Tyre Front

Diameter unloaded: 552 mm

Tread width: 185 mm

Suggested pressure hot: 24 psi (1.7 bar)

Suggested static camber: -1.5 to -3.5°

Compounds: A24 (slick), A49 (wet)

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Avon 250/570R13 F3 2004 Control Tyre Rear

Diameter unloaded: 574 mm

Tread width: 247 mm

Suggested pressure hot: 24 psi (1.7 bar)

Suggested static camber: -1.5 to -2.0°

Compounds: A24 (slick), A49 (wet)

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Pacejka ’96 Pure Lateral Model coefficients:

2001 Front 2001 Rear

[VERTICAL]

FNOMIN = 2443.652224 3849.885

[LATERAL]

PCY1 = 0.324013 0.558238

PDY1 = -3.674945 -2.23053

PDY2 = 0.285134 0.090785

PDY3 = -2.494252 -5.71836


PEY1 = -0.078785 -0.40009

PEY2 = 0.245086 0.569694

PEY3 = -0.382274 -0.26276

PEY4 = -6.255703316 -29.3487

PKY1 = -41.72281132 -28.2448

PKY2 = 2.11293838 1.331304

PKY3 = 0.150080764 0.255683

PHY1 = 7.11E-03 8.47E-03

PHY2 = -5.09E-04 -5.94E-04

PHY3 = 0.049069131 4.20E-02

PVY1 = 7.34E-03 2.62E-02

PVY2 = -7.78E-02 -7.91E-02

PVY3 = -6.41E-02 -0.08552

PVY4 = -0.6978041 -0.44481

TECHNICAL ARTICLE



Avon 245/635R13 F3000 Control Tyre Front

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Avon 315/660R13 F3000 Control Tyre Rear

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Pacejka ’96 Pure Lateral Model coefficients:


[VERTICAL]

FNOMIN = 2692.053434 5346.704845

[LATERAL COEFFICIENTS]

PCY1 = 0.329706 0.364164

PDY1 = -3.866042 -3.18288

PDY2 = 0.322127 0.371356

PDY3 = -3.412685 -3.453507


PEY1 = -0.133133 -0.086061

PEY2 = 0.422037 0.283284

PEY3 = -0.288474 -0.14703

PEY4 = -7.314622471 -15.16044697

PKY1 = -50.18062 -32.72903409

PKY2 = 2.453451087 1.811611114

PKY3 = 0.133922498 0.143055105

PHY1 = 0.007461386 0.008316235

PHY2 = -0.001842507 -0.000541381

PHY3 = 0.032140917 0.045747809

PVY1 = 0.048464348 0.025108046

PVY2 = -0.046358673 -0.110629772

PVY3 = -0.173862013 -0.152255369

PVY4 = -0.384045902 -0.520507122

Documents

CVD Tyre Data