The shifting difference of a vehicle traveling on a flat road and on a ramp was analyzed,and the unexpected shifting on up-slope and circular shift on down-slope were analyzed too,then the correction scheme adding the driver's intention was put forward.Based on the engine bench test data and torque converter characteristics,the shifting schedule taking the throttle and the speed as the inputted parameters was settle down.By use of MATLAB/Simulink software,the fuzzy controller for shift schedule of vehicle o...