Patent ID: 7920948

Claim:
An assumption torque setting device during gear shifting for an internal combustion engine that executes a torque reduction process during a gear shifting period, wherein torque is set that is assumed to be output by the internal combustion engine that is based on a target torque from which an amount corresponding to the torque reduction process is excluded as an assumption torque during the gear shifting period, the assumption torque setting device during gear shifting comprising: an assumption model torque calculation unit which calculates an assumption model torque from the target torque from which an amount corresponding to the torque reduction process is excluded based on an internal combustion engine delay model; and an assumption torque calculation unit which calculates before torque reduction is performed in the torque reduction process an assumption torque based on an internal combustion engine operation state and which calculates when the torque reduction is being performed in the torque reduction process an assumption torque based on the assumption model torque calculated in the assumption model torque calculation unit and an assumption torque calculated from the internal combustion engine operation state.