A vehicle has the following system parameters:

total mass, m (kg): 2037
wheel base, L (m): 2.794

Estimate the possible maximum speed of the vehicle on level ground and on a grade of 25% as determined by the maximum tractive effort that the tire-road contact can support if the vehicle is (a) rear-wheel drive, and (b) front-wheel drive. Plot the result resistance versus vehicle speed, and show the maximum thrust of the vehicle with the two types of drive.

Transcribed Image Text:

center of gravity (C.G), hg (m): 0.508 height of aerodynamic drag, hw (m): 0.508 distance between front axle to C.G., a (m): 1.27 frontal area of the vehicle, Af (m?): 2.32 air mass density, p (Ns²m4): 1.2258 aerodynamic drag coefficient, Cp: 0.45 coefficient of tire rolling resistance, f = 0.0136 + 0.4×10-7u; (ua (km/h) is vehicle forward speed) wheel rolling radius, r (m): 0.33 coefficient of road adhesion, o: 0.8 center of gravity (C.G), hg (m): 0.508 height of aerodynamic drag, hw (m): 0.508 distance between front axle to C.G., a (m): 1.27 frontal area of the vehicle, Af (m?): 2.32 air mass density, p (Ns²m4): 1.2258 aerodynamic drag coefficient, Cp: 0.45 coefficient of tire rolling resistance, f = 0.0136 + 0.4×10-7u; (ua (km/h) is vehicle forward speed) wheel rolling radius, r (m): 0.33 coefficient of road adhesion, o: 0.8