Tire Terminology
Vehicle Axis system
•Un-sprung mass
• Right-hand orthogonal axis system fixed in a vehicle
• x-axis is substantially horizontal, points forward, and is in the longitudinal plane of symmetry.
• y-axis points to driver's right and
• z-axis points downward.
• Rotations:
– A yaw rotation about z-axis.
– A pitch rotation about y-axis.
– A roll rotation about x-axis.
Tire Terminology - basic
