Automotive Engineering II Exam. 2
Student Name: Student Number:
1 A) Define the following:
i Pitch motion
ii Turning circle diameter
iii Toe in
iv Ackerman angle
B) Electronic Stability Program (ESP):
What is it? 

How it works? 

Parts (components) 

C) Camber angle:
What is it? 

Its function: 

The problems if not correctly adjusted 

D) What are the factors that lead to increasing the tire lateral stiffness?
2) Find the inner angle of steering front wheel (d_{o}), if the car track (t) is 2.00 m, and the car wheel base (b) is 3.6 m, the outer steer angle (d_{o}) = 15^{o}. Where: cot d_{o} – cot d_{i }= t/b
3) A passenger car has a weight (w) of 24 kN, and a wheel base (b) of 3.6 m. The weight distribution on the front axle is 55% and that on the rear axle is 45% under static conditions. If the cornering stiffness of each of the front tires (C_{a}_{ f} ) is 35 kN/rad and that of the rear tires (C_{a}_{ r}) is 36 kN/rad. Where the steer angle is
_{}
i) Find the slip angle of the front tires (a_{f})
ii) Find the steer angle (d_{f})
4) A car has a weight (w) N, and a wheel base (b) m, the CG is (x) m behind the front axel and (y) m in front of the rear wheel, and (h) m above ground. Find:
i) Rear wheel reaction (R_{r})
ii) the transferred weight (w_{t}) due to ascending a gradient (θ)


iii) the maximum gradient if the car is RWD. If the adhesion coefficient is (m). 