An electrically operated vehicle driving controller has an electrically
operated machine driving section for operating an electrically operated
machine; a driving section temperature detecting section for detecting
the driving section temperature of the electrically operated machine
driving section; a limit ratio calculating processor for calculating a
limit ratio for limiting the torque of the electrically operated machine
on the basis of the driving section temperature; a rotating speed
calculating processor for calculating the rotating speed of the
electrically operated machine; and a limit torque calculating processor
for calculating an electrically operated machine limit torque
corresponding to an electrically operated machine maximum torque set
corresponding to the rotating speed on the basis of the limit ratio.
Because the torque of the electrically operated machine is limited in a
limit ratio corresponding to the temperature of the electrically operated
machine, it is possible to prevent the characteristics of the
electrically operated machine from being reduced.