Patent ID: 6835165
Filing Date: 2004-12-28
Classification: F16H,Y10T

Abstract:
A 2-3 up-shifting shift control device of an automatic transmission of a vehicle, comprising:a vehicle speed sensor sensing a vehicle speed; a shift lever position sensor sensing a shift lever position of the vehicle; a throttle position sensor sensing a throttle valve opening value of the vehicle; a shift control unit outputting a 2-3 up-shifting drive control signal corresponding to the sensed throttle valve opening (TVO) value when the shift lever position is changed from a 2 driving range to a 3 driving range and the vehicle is driving; and a shift drive unit performing a predetermined 2-3 upshifting drive control operation by controlling hydraulic pressures in response to the control signal received from the shift control unit, the shift drive unit comprising intermediate solenoid valves; wherein said 2-3 up-shifting drive control signal comprises signals for first, second, and third combinations of the intermediate solenoid valves, wherein said first, second and third combinations are determined based on a shift control condition corresponding to the throttle valve opening (TVO), and wherein each of said signals for first, second, and third combinations of intermediate solenoid valves comprises a code for the corresponding combination and a code for maintaining time of the corresponding combination.