Kingpin Angle, Kingpin Angle with Respect to Body
The angle in the front elevation between the steering axis, i.e. kingpin axis and the vertical. Kingpin angle is reported in degrees, and is positive if the steering axis is inclined upward and inward. SVC computes kingpin angle for the front suspension only. When measured with respect to vehicle body, kingpin angle is the angle between the steering axis and the body z-axis (or xz plane).
Computed by:
SVCFAN (SVCFAB)
Input Variables Used:
Left and right kingpin marker identifiers (idksil, idksir)
Global origin marker identifier (gblm) (Body frame marker identifier (idbcm))
Method:
SVC uses the INFO utility subroutine to retrieve the Euler angles of the kingpin marker with respect to the global marker. SVC assumes the z-axis of the kingpin marker points up the kingpin axis.
Left kingpin = -(180/pi ) arctan( cos (psi) tan(theta) )
Right kingpin = (180/pi ) arctan( cos (psi) tan(theta) )
θ = Kingpin Angle
