Abstract
The yaw-plane handling model is used to derive the yaw-rate and side-slip frequency response functions for a highway vehicle. These functions are second order with first order numerator terms. The dynamic parameters in these functions (time constants, steady-state gains, natural frequencies, and damping ratios) are derived in terms ofvehicle design parameters (such as centre-of-gravity location, tyrecornering stiffness, and vehicle mass and inertia), and plotted versus vehicle speed. The relationship between these vehicle design parameters and the dynamic parameters are then discussed. The insight gained from this exercise should lead to better vehicle designs. (A).