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Tyre force components
The term “Tyre Force” generally means the total force exerted by the ground on the tyre. This force has lateral and longitudinal components for a driven tyre as shown in the diagram. These components can be further resolved into the central and tractive forces. It is essentially the central force that provides the centripetal acceleration of the car. It is the tractive force that determines whether the car rounds the corner at constant speed or not. The distinction between these forces their magnitude and vectors are often overlooked by students of vehicle dynamics. As we will see later their importance is vital when related to the vehicle in motion. Three situations are shown below:
- Combined driving and cornering
- Pure cornering
- Combined braking and cornering
Combined Driving and Cornering:
The lateral and longitudinal forces resolve to a resultant tyre force, which in turn has components producing the central and tyre tractive forces.
The tyre force now equals the lateral force. This force has components producing the central and tyre drag forces.
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|Anonymous||Tire forces when steering versus tilting||0||Feb 25 2011, 4:49 AM EST by Anonymous|
Thread started: Feb 25 2011, 4:49 AM EST Watch
Hi there Charly!
Would like to ask you how big is the difference in terms of "waisted energy" between the tire and the road, comparing a car that steers by means of turning the wheels or by means of tilting them.
Thank you for showing some light on this aspect.
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