METHOD AND SYSTEM FOR SHIFT CONTROL OF AN AUTOMATIC TRANSMISSION FOR VEHICLE

摘要

A shift control of an automatic transmission for a vehicle, which includes a first transmission section capable of automatically shifting gears in association with at least vehicle speed and engine load and a second transmission section capable of shifting between the lower gear side and the higher gear side, wherein the first transmission section and the second transmission section are simultaneously or alternately shifted, to thereby achieve multi-gear shifts, such that when shifting is to be achieved by shifting the first transmission section and the second transmission section in directions opposite to each other, shifting into the gear is prohibited.