Automotive Question about single track model

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The discussion focuses on the limitations of the single track model in vehicle dynamics, particularly its assumption of constant velocity. The user seeks to explore how yaw rate and sideslip can be analyzed when incorporating a variable velocity profile, such as acceleration and deceleration. It is noted that while the single track model effectively captures lateral dynamics, it overlooks longitudinal dynamics, which are crucial for a comprehensive understanding. The impact of varying speed on vehicle behavior, specifically yaw damping, is highlighted as an important consideration. Overall, the conversation emphasizes the need for a more complex model to accurately reflect dynamic changes in vehicle performance.
ronasbeg
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Hello guys,

I've been doing some simulink modelling about a study that's been ongoing for a while , I've used the single track model to see the yaw rate and sideslip for the given steering angle input ,
But as you know single track model makes the assumption of vehicle velocity as constant. Now the question is , what if I don't assume this velocity to be a constant value and want to see the yaw rate and sideslip wrt to the steering input and the given velocity profile ( for ex , vehicle accelerates from 15 m/s to 25 m/s and decelerates to same velocity linearly again.)

If you have some opinions , I appreciate .Thanks.
 
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can anybody help me ? ?
 
The single track model was designed to model vehicle lateral dynamic, therefore you would miss something, e.g. the vehicle longitudinal dynamic. But I think in this way you will understand how the vehicle lateral dynamic changes with the speed, as example it will change the vehicle yaw damping.
 
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