Influence of tyre pressure on an urban bus transient and steady state handling performance

Abstract

The influence of the variation in the tyre inflation pressure on the steady state and transient handling dynamics of an urban bus are investigated through analysis of a three-dimensional (3D) vehicle model. A five-degrees-of-freedom handling dynamic model of the bus is formulated incorporating the non-linear models of the suspension components and the tyre. The vertical stiffness properties of the tyre are characterized through a regression model under normal load and the inflation pressure that was formulated on the basis of the laboratory measured data. The available tyre data on the cornering properties of tyres are analysed to derive a modified ‘magic formula’ for predicting the cornering properties as functions of the inflation pressure and the normal load. The proposed model responses showed reasonably good agreement with the available measured data over ranges of the inflation pressures and normal loads. The 3D handling dynamic model was subsequently analysed under sinusoidal and ramp-step steering inputs to study the influence of the tyre pressure on the steady state and transient handling responses. The results show notable influences of the tyre pressures on both the steady state and the transient handling properties.

Keywords

tyre pressure transient handling performance steady state handling performance urban bus three-dimensional vehicle model

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References

Kasprzak

E. M.

Lewis

K. E.

Milliken

D. L.

‘Inflation pressure effect in the nondimensional tyre model.’ SAE paper 2006-01-3607, 2006.

Kasprzak

E. M.

Lewis

K. E.

Milliken

D. L.

‘Tyre asymmetries and pressure variations in the Radt/Milliken nondimensional tyre model.’ SAE paper 2006-01-1968, 2006.

Schmeitz

A. J. C.

Besselink

I. J. M.

Hoogh

J. D.

Nijmeijer

‘Extending the magic formula and SWIFT tyre models for inflation pressure changes.’

VDI Ber. 1912 (2005): 201–226

Rhyne

T. B.

‘Development of a vertical stiffness relationship for belted radial tyres.’

Tyre Sci. Technol. 33 (3) (2005): 136–155

Rakheja

Ahmed

A. K. W.

Stiharu

‘Urban bus optimal passive suspension study.’ Report TP 13787E, Transportation Development Centre, Transport Canada, Ottawa, Ontario, Canada, 2001.

Fancher

P. S.

‘Descriptive parameters used in analyzing the braking and handling of heavy trucks - measurements of the longitudinal and lateral traction properties of truck tyres, vol. 3, Data volume III (Notebook III).’ Final report UM-HSRI-81-19-3-4, University of Michigan, Highway Safety Research Institute, 1981, pp. 357–373.

Cebon

‘Interaction between heavy vehicles and roads.’ SAE paper 930001, 1993.

Wong

J. Y.

Theory of ground vehicles, third edition (John Wiley 2001)

Rakheja

El-Sayed

Wang

Romero

J. A.

‘Optimal tyre inflation pressures for urban buses.’

Int. J. Heavy Veh. Syst. 15 (2–4) (2008): 393–415

10.

Wang

Machemehl

R. B.

‘Predicting truck tyre pressure effects upon pavement performance.’ Research Report SWUTC06/167864-1, The University of Texas at Austin, Austin, Texas, USA, 2006.

11.

Jun

H.-G.

Way

T. R.

Lofgren

Landstrom

Bailey

A. C.

Burt

E. C.

McDonald

T. P.

‘Dynamic load and inflation pressure effects on contact pressures of a forestry forwarder tyre.’

J. Terramech. 41 (4) (2004): 209–222

12.

Adams

B. T.

Reid

J. F.

Hummel

J. W.

Zhang

Hoeft

R. G.

‘Effects of central tire inflation systems on ride quality of agricultural vehicles.’

J. Terramech. (2004), 41 (4), 199–207

13.

Rakheja

Wang

‘Feasibility assessment of a central tyre inflation system for urban buses.’ Report TP 14643E, Transportation Development Centre, Transport Canada, Ottawa, Ontario, Canada, 2005.

14.

Pacejka

H. B.

Bakker

‘The magic formula tyre model.’

Veh. Syst. Dyn., Suppl. 27 (1993): 234–244

15.

Rajamani

Vehicle dynamics and control (Springer Science + Business Media 2006)

16.

Chung

‘An investigation into differential braking strategies on a banked road for vehicle stability control.’

Proc. IMechE, Part D: J. Automobile Engineering 221 (4) (2007): 443-455 DOI: 10.1243/09544070JAUTO77.

17.

Jang

Karnopp

‘Simulation of vehicle and power steering dynamics using tyre model parameters matched to whole vehicle experimental results.’

Veh. Syst. Dyn. 33 (2000): 121–133

18.

Tsunashima

Kaneko

‘Performance analysis of lateral guidance system for dual mode truck.’ In Proceedings of the IEEE Conference on Intelligent transportation systems

19.

D. H.

‘A theoretical study of the yaw/roll motions of a multiple steering articulated vehicle.’

Proc. IMechE, Part D: J. Automobile Engineering 215 (12) (2001): 1257-1265 DOI: 10.1243/0954407011528798.

20.

El-Gindy

Wong

J. Y.

‘Comparison of various computer simulation models for predicting the directional responses of articulated vehicles.’

Veh. Syst. Dyn. 16 (5–6) (1987): 249–268

21.

Wong

J. Y.

El-Gindy

Technical report of vehicle weights and dimensions study, vol. 16 (Road and Transportation Association of Canada (RTAC) 1986).

22.

Dixon

J. C.

Tyres, suspension, and handling (SAE International 1996)

23.

Sampson

D. J. M.

Cebon

‘Active roll control of single unit heavy road vehicles.’

Veh. Syst. Dyn. 40 (4) (2003): 229–270