Lateral Dynamic Analysis under Tramping Conditions of a Vehicle Enabling to Roll Inward in a Turn using Full Vehicle Model Simulation

Abstract

A four-wheel vehicle with a roll axis above center of gravity of the sprung mass can roll inward in a turn. The high roll axis vehicle equipped with new suspensions is compared by full vehicle model simulations with a conventional low roll axis vehicle for ride quality and controllability. In consequence, the only problem of the high roll axis vehicle is that the lateral acceleration of sprung mass on a rough road increases nearly double as low axis model. Because other performances are the same level, the high roll axis vehicle is feasible enough.