| 摘要 |
PROBLEM TO BE SOLVED: To increase the estimation accuracy of the actual temperature of a stator coil in a vehicular rotary electrical machinery temperature estimation system.SOLUTION: A temperature estimation system 12 is so mounted on a vehicle body 19 as to be fixed thereto, and includes a second MG 14 which is a rotary electrical machine having a stator coil, a cooling part 16 for cooling the stator coil by a coolant ejected from an ejection port 69, a temperature sensor 18 for measuring the temperature of the stator coil, and an actual temperature estimation part 74 for estimating the actual temperature of the stator coil by use of the temperature measured by the temperature sensor 18 and a temperature correction value. The actual temperature estimation part 74 changes a temperature correction value according to a change in the attitude of the vehicle body 19. |
