AUTOMATIC CONTROL METHOD ESPECIALLY USABLE FOR MAINTAINING THE SLIPPAGE OF TIRE AT OPTIMUM LEVEL SUCH THAT TIRE FUNCTIONS AT MAXIMUM FRICTION COEFFICIENT LEVEL

摘要

PROBLEM TO BE SOLVED: To predict the slippage related to the maximum friction coefficient at braking based on the actual rolling conditions of a tire by measurement as simple as possible and a measurement value as less as possible. SOLUTION: The automatic control method has a stage for determining evaluation regarding at least a pair of values of "i" or measurement (Xi, Yi); a stage for determining the corresponding value of an inclinationαiof a linear line passing through an origin and the point (Xi, Yi); a stage for modeling a variation curveαi=f(Xi, Ap) by calculating the coefficient Apby a direct calculation or regression from a sufficient number of pairs with (αi, Xi); and a stage for calculating a target value Xmaxusing a predetermined invariant "Invt". COPYRIGHT: (C)2004,JPO&NCIPI