The Equations of Lateral Motion of the Two Degree-of-Freedom Model of the Four-Wheeled Road Vehicle 901732
The equations of motion of the two degree-of-freedom model of a two-axle road vehicle are expressed using vehicle cornering stiffness constants, which shows the effect of speed more clearly than stability derivatives. The forms of the equations of motion, for analysis in earth-fixed axes and vehicle-fixed axes, are compared. The properties of the characteristic equation are analysed by analogy with the single degree of freedom vibration equation. The undamped natural frequency, damping ratio and damped natural frequency are investigated. A simple extension of the model is considered, allowing inclusion of effects such as roll steer.
Citation: Dixon, J., "The Equations of Lateral Motion of the Two Degree-of-Freedom Model of the Four-Wheeled Road Vehicle," SAE Technical Paper 901732, 1990, https://doi.org/10.4271/901732. Download Citation
Author(s):
J. C. Dixon
Pages: 12
Event:
Passenger Car Conference & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Electronic and Non-Electronic Suspension Systems and Steering Controls-SP-0838
Related Topics:
Roll
Roads and highways
Vibration
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