Abstract
It is necessary to consider the coupling between the power train system and suspension system for the unsprung mass vibration that occurs when the vehicle starts. In this study, we constructed a dynamic model that takes into account the stiffness and inertia of the power train system in the suspension and tire models, and confirmed that the model reproduces the actual vibration phenomenon. Furthermore, we clarified the conditions for instability based on the relationship between the suspension vertical resonance and the power train system resonance.
