Previsione delle prestazioni del veicolo su strada: stato dell’arte

This chapter deals with the forecast of the vehicle performance on the road, according to installed engine. It begins with a first part a) which shows the calculation of the resistance to motion, i. e. the forces that the vehicle must win to advance on the flat roads and uphill. The calculation excludes accidental resistance in curve because it is not essential for predicting the behavior of the vehicle on the road. The section b) begins with the power characteristic, the forecast by traction – speed and power speed diagrams, the calculation of gear ratios, and then passing to the limits to the estimated acceleration, features consumption and distance. It concludes with a section on the driveability of the vehicle, the report sets out the advantages of four-wheel drive vehicles.