Device and method for shift controlling of automatic transmission in vehicle

A device for shift control in an automatic transmission of a vehicle, the device comprising:

• vehicle run state detecting means for detecting the run state of the vehicle and outputting at least one signal representative thereof;
• shift control means for performing a power-on up-shift control and controlling relative rate of change in turbine revolution after shifting in the control process to effect a power-on up-shift feedback control when a predetermined control signal is output to the vehicle run state detecting means to receive a signal detected by the vehicle run state detecting means and a power-on up-shift signal is input from the vehicle by way of a vehicle shift mode state output in synchronization with the control signal;
• and
• driving means for supplying and stopping supply of oil pressure discharged from an oil pump to perform the shifting in response to a predetermined shift control duty signal output from the shift control means.