| 摘要 |
The present invention relates to a learning control method of an automatic transmission, which is able to precisely and rapidly learn fill time of frictional elements even under the condition of driving at a constant speed, which is more general than gear shift under the condition of acceleration. According to the present invention, the learning control method of an automatic transmission comprises: a step of applying an oil pressure to temporarily apply an oil pressure to a frictional element which does not work under the condition of driving at a constant speed in the status of in gear; a step of determining an interlock to determine if an interlock occurs in the automatic transmission by the oil pressure applied in the step of applying an oil pressure; a step of correcting a fill time to correct the current fill time of the frictional element, which does not work, and to repeat the step of applying an oil pressure when it is determined that an interlock occurs in the step of determining an interlock; and a step of determining a fill time to determine the current fill time of the frictional element, which does not work, when it is determined that an interlock does not occur in the step of determining an interlock. |
