Patent ID: 6736756
Filing Date: 2004-05-18
Classification: F16H,Y10T

Abstract:
A shift control method of an automatic transmission of a vehicle, the method comprising the steps of:determining whether a shift lever of the automatic transmission is switched from reverse range to neutral range; determining a lapsed time when the shift lever is set at a neutral range, if confirmation occurs that the shift lever is switched from a reverse range to neutral range at a previous step and determining if the shift lever is switched from the neutral range to a forward drive range; and performing a shifting operation with a shifting oil pressure depending on the lapsed time when the shift lever is set at the neutral range if confirmation occurs that the shift lever is switched from the neutral range to the forward drive range at the previous step; and wherein the shifting operation comprises discriminating whether the lapsed time, when the shift lever is set at neutral range, is included within a first time range, and setting a shift control duty value on a basis of oil temperature of an automatic transmission and a storage of an oil temperature map and outputting a duty control signal for a predetermined time if confirmation occurs that the lapsed time of the shift lever set at neutral range is included within a first time range.