Control method for electrically driven vehicle and control device for electrically driven vehicle

A control device for an electrically driven vehicle, the control device being applied to the electrically driven vehicle including a motor configured to supply the vehicle with a braking force or a driving force corresponding to an accelerator operation amount, the control device being for controlling the braking force when the accelerator operation amount is less than a predetermined value and controlling the driving force when the accelerator operation amount is the predetermined value or more, the control device being configured to:

• calculate a torque target value at which the motor is caused to output a braking torque or a driving torque corresponding to the accelerator operation amount;
• estimate a disturbance torque acting on the motor as a resistance corresponding to a road surface gradient;
• perform a correction to remove the disturbance torque from the torque target value;
• control the motor in accordance with the torque target value subjected to the correction;
• and
• reduce a correction amount in the correction on a downhill road only when the accelerator operation amount is less than the predetermined value and a vehicle speed is larger than a predetermined vehicle speed.