Abstract

This is the last in a series of four papers (Parts 1 to 4) looking at the application of computer-based analysis methods to model vehicles and simulate vehicle handling. The material contained in these papers is based on a study carried out in order to investigate the influence of suspension and tyre modelling on the outputs predicted by vehicle handling simulations. The papers deal with analysis methods, vehicle modelling, tyre modelling (which appeared in the previous two Issues) and handling simulation. In this paper an example of a vehicle handling simulation based on a high-speed lane change manoeuvre is presented. The effects of suspension modelling on the accuracy of simulation outputs is discussed on the basis of results obtained using the four vehicle models described in Part 2 of this series. Measured outputs such as lateral acceleration and roll angle are compared with measurements taken from the vehicle during the same manoeuvre on the proving ground. The influence of the tyre models described in Part 3 on the simulation outputs is shown. The effects of vehicle and tyre modelling on computer simulation time are also summarized. The paper concludes by demonstrating how a simple vehicle and tyre model can be used to carry out sensitivity studies varying vehicle and tyre design parameters.

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