Citation

Brayshaw DL, Harrison MF. Proc. Inst. Mech. Eng. Pt. D J. Automobile Eng. 2005; 219(6): 725-739.

Copyright

(Copyright © 2005, Institution of Mechanical Engineers, Publisher SAGE Publishing)

DOI

10.1243/095440705X11211

PMID

unavailable

Abstract

Using an established seven-degree-of-freedom (7DOF) model of an open wheel race car, a new quasi steady state lap simulation method is described. The method is based on optimal control techniques. It produces a GG speed diagram as an interim result, and is shown to have a low computational expenditure when compared with the current transient optimal control method. This paper shows a validation step, reports a case study using the new method, and compares the result with a transient optimal control method. The sensitivity of the optimal line for simulation studies is discussed in terms of a centre of gravity location change. Both simulation methods show improvements in lap time owing to a 6 per cent centre of gravity set-up change. The difference in optimal lines caused by a 6 per cent CG change rearward is shown to be so small that a driver is unlikely to find the information useful. In light of this observation, the computational effort required to generate a new optimal line for each set-up change may be misspent

Language: en