| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a magnet temperature estimating device for a rotating electric machine, capable of estimating the magnet temperature more easily. <P>SOLUTION: A torque measuring part 120 measures an actual torque of a motor generator. A torque estimating part 122 estimates the torque of the motor generator, when the magneto temperature of the motor generator is a reference temperature, by using a current-torque map created beforehand. A magnet temperature estimating part 126 estimates the magnet temperature of the motor generator based on the difference of a measuring torque Ta and an estimating torque Te, by using a magnet temperature estimating map created beforehand based on a temperature characteristics of a permanent magnet. <P>COPYRIGHT: (C)2010,JPO&INPIT |
