A2

1. For a tata ultra truck the gradeability was 25.6%, vehicle weight 3250 Kg, full load 8740 Kg, moving at a constant speed of 10 kmph requires 92 Kw of power on full gradient.

when it is half loaded with a load of 4370 Kg, moving at 10 kmph it requires 58 Kw of power on full gradient.

2. 42.66 m is the length of the flyover needed, considering half of max gradiability (26% = 14.6deg) of a truck which is 7.4 degrees slope for maintaining minimum speed.

3. a new drive cycle (200 sec) is prepared and given as an input to driver model, the inclination angle is given as constant 2 degrees through out the cyccle, there is a dip observed in vehicle speed output compared to drive cycle.

4. With original data of GM ev1, equations are made to calculate velocity at wot, for max torque below 71 kmph and for max power above 71 kmph. Velocity increases from 0 to 137 kmph in 15 seconds. excel graph attached below.