Hill hold control apparatus for vehicle

A hill hold control apparatus of an automatic transmission having a plurality of drive gears mounted on an input shaft, a plurality of driven gears meshing with the respective drive gears and mounted on an output shaft and a bypass clutch for engaging the input shaft with the output shaft, includes a grade judging means for judging that the vehicle travels on a grade, a shift gear train detecting means for detecting a shift gear train of the automatic transmission, a foot brake operation detecting means for detecting an operation of a foot brake and a control means for engaging the bypass clutch when it is judged that the vehicle is in standstill and the shift gear train is a start gear train and the foot brake is inoperative based on respective signals of the grade, the shift gear train and the operation of the foot brake (Fig. 2).