VEHICLE TURN-OVER PROOFING PERFORMANCE EVALUATION METHOD AND VEHICLE TURN-OVER PROOFING PERFORMANCE EVALUATION DEVICE

摘要

PROBLEM TO BE SOLVED: To evaluate turn-over proofing performance by a vehicle single body safely and in high precision without installing an expensive turn-over prevention device.

SOLUTION: A vehicle is made to travel by repeatedly changing a travelling speed condition so that travelling speed of the vehicle after changing increases in comparison with travelling speed before changing, a wheel information lowest value at which a load becomes lowest in travelling is extracted by time-serially providing wheel information to show size of the load applied on a wheel from a road surface concerning at least the one wheel out of the wheels on the turning inner wheel side of the vehicle in travelling every time, a regression expression against travelling speed of the wheel information lowest value is derived by using each of the vehicle travelling speed in the case of repeatedly travelling the vehicle and the wheel information lowest value at each of the vehicle travelling speed, the lowest travelling speed out of the travelling speed at which the wheel floats in travelling the vehicle is computed in accordance with the derived regression expression and the turn-over proofing performance of the vehicle is estimated in accordance with the computed lowest travelling speed.

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