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Unformatted text preview: ME 131 Vehicle Dynamics Homework 2, Solutions 1 Definitions and Concepts a. Define Cornering Stiffness (1 pt) The cornering stiffness is how much lateral force is produced by the tire divided by the slip angle in the linear operating region of the tire. b. Define the understeer gradient. (1 pt) The understeer gradient is a measure of the difference in ratios of axle load to cornering stiffness in the from and rear axles. d. An understeering vehicle is generally more stable than a neutral or oversteering vehicle. When is stability in a passenger vehicle undesirable? (1 pt) Could be many answers. Anytime you need to turn and cant would apply. For example, if the front tires are without traction you have severe understeer and cannot correct if you are going off of the road. However, the vehicle is stable and will go straight as long as the rear tires still provide cornering force. 2 Understeer, Oversteer, and Eigenvalues From page 31 of Rajamani, we can see the equations of lateral motion and yaw angle.From page 31 of Rajamani, we can see the equations of lateral motion and yaw angle....
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This document was uploaded on 02/03/2011.
- Spring '09