CLUTCH OIL PRESSURE CHARACTERISTIC VALUE SETTING METHOD FOR AUTOMATIC TRANSMISSION

摘要

PROBLEM TO BE SOLVED: To provide a clutch oil pressure characteristic value setting method for an automatic transmission for obtaining a stable measured value and improving precision of a set value. SOLUTION: In this clutch oil pressure characteristic value setting method for the automatic transmission with stages in which driving force is transmitted from a torque converter, a speed ratio of the torque converter is measured when predetermined time elapses after trial oil pressure output, reference clutch oil pressure for reducing the measured value to a predetermined determination value is obtained, and a clutch oil pressure characteristic value is obtained based on the reference clutch oil pressure in pressure raising trial for clutch oil pressure. COPYRIGHT: (C)2007,JPO&INPIT