6. Roll steer analysis
The roll steer analysis was carried out in order to validate the suspension designed through above procedure.
When a car takes a turn, due to centripetal force acting on the centre of mass of the car there are unequal normal
reactions acting on both the wheels. Due to this entire body rolls about roll centre of the car. This affects the driver
comfort. In this analysis, we had considered velocity of car to be 80km/hr and radius of the turn 7m. Our expected
criteria is that the roll angle should be below 10o.
Suppose, a car takes turn to left and body rolls at an angle Ѳ at the roll centre. Moment is balanced about roll
centre and equation (5) generates: