Automatic transmission for vehicle

An automatic transmission for a vehicle comprising:

• an automatic transmission mechanism that includes a plurality of friction engaging elements which change a power transmission path between an input shaft to which power is input from an engine output shaft of a vehicle and an output shaft linked to a driving wheel of the vehicle, an engaging oil pressure control unit which controls an engaging oil pressure that engages a first friction engaging element among the plurality of friction engaging elements, and a releasing oil pressure control unit which controls a releasing oil pressure that releases a second friction engaging element, so as to achieve upshifting to a predetermined gear shift stage;
• and
• a control device that includes an engaging oil pressure computing unit which calculates the engaging oil pressure based on a first torque which is an input torque input to the input shaft, and outputs the engaging oil pressure to the engaging oil pressure control unit, a releasing oil pressure computing unit which calculates the releasing oil pressure based on a holding torque of the first friction engaging element calculated from the engaging oil pressure and the first torque, and outputs the releasing oil pressure to the releasing oil pressure control unit, a pulled state determination unit which determines whether or not the vehicle is in a pulled state, and a travel load increase calculation unit which calculates an increase in travel load of the vehicle,
• wherein the control device increases at least one of the engaging oil pressure and the releasing oil pressure immediately before rotation variance of the input shaft is generated based on an increase in travel load of the vehicle calculated by the travel load increase calculation unit in a case where it is determined that the vehicle is in a pulled state by the pulled state determination unit.