ASC Paper Notes
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The distance of the NSP from the front axle is determined by the following equation   Assuming the tires in the front and back are the same model, and thus the cornering stiffness values are the same, the equation simplifies down to 1/3WB. |
The location of the CG relative to the NSP determines the characteristic of the yaw response. This can be summarized in variables known as the static margin and the understeer coefficient
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The Static Margin (SM) is defined as “the distance from the CG rearward to the NSP divided by the wheelbase” and is expressed with the following equation (somehow…?). It is the distance from the front axle to the NSP as defined earlier, minus the distance from the front axle to the CG (denoted as LG), all divided by WB. Notice that for the first term since WB is in the definition, dividing by WB cancels it out.  In our case, with 3 wheels of the same cornering stiffness, this can be simplified down to  |
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