Lateral car velocity in a corner

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Calculating the lateral velocity of a car while changing lanes, given a known longitudinal speed, yaw rate, and steering angle, is the primary focus of the discussion. The initial assumption that lateral velocity could be zero is challenged, as the scenario involves dynamic lane changes rather than constant cornering. The question seeks to determine if lateral velocity can be derived without knowing cornering stiffness or the road/tire friction coefficient. Clarification is provided that the situation involves a constant forward velocity rather than a fixed cornering scenario. The discussion emphasizes the need for further analysis to resolve the calculation of lateral velocity under these conditions.
rabun
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Hello

The problem is a car going around a corner. The car is moving at a known but changing longitudal speed, the yawrate and steering angle is known as well.
Is it possible to calculate the lateral velocity of the car without knowing the cornering stiffness?(road/tire friction coefficient)

Thank for your help
 
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hello rabun! :smile:

i don't understand the question :redface: …

surely the lateral velocity is zero? :confused:​
 
Hello tiny tim

No, I do don't think that it should be zero, though I might restate the question differently.

In stead of a corner, since this might suggest constant angular velocity, picture a car changeing lanes on the highway. This would entail the forward velocity being somewhat constant.
If I could measure the Yawrate and the angle of the front wheels of the car as well as the forward velocity would it be possible to calculate the lateral velocity at CG without cornering stiffness as the car changes lanes. Can it be done?

Does this make my problem clearer? or am I further confusing everyone?

Rabun
 

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