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Setting of the control device and the permanent magnet type synchronous motor of the upper limit temperature of a vehicle equipped with a permanent magnet synchronous motor
Setting of the control device and the permanent magnet type synchronous motor of the upper limit temperature of a vehicle equipped with a permanent magnet synchronous motor
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机译：设置有永磁同步电动机的车辆的上限温度的控制装置和永磁型同步电动机
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摘要
PROBLEM TO BE SOLVED: To highly accurately predict a current condition on which irreversible demagnetization may occur, and a demagnetization amount in a permanent magnet type synchronous motor.SOLUTION: A control device for a vehicle with the permanent magnet type synchronous motor mounted therein comprises: a control controller 100 which performs output torque control of the synchronous motor by controlling a d-axis current value and a q-axis current value to be applied to the synchronous motor; and a permanent magnet temperature estimation part 120 which estimates a temperature of a permanent magnet. The control controller 100 includes: a control region setting part 108 which is divided into a plurality of regions each defining the d-axis current value and the q-axis current value as parameters and to which an upper limit temperature for suppressing demagnetization of the permanent magnet is set for each region; a temperature comparison part 122 which compares the permanent magnet temperature that has been estimated by the permanent magnet temperature estimation part 120, with the upper limit temperature; and a deterioration discrimination part 124 which discriminates the synchronous motor is deteriorated if the permanent magnet temperature is higher than or equal to the upper limit temperature.SELECTED DRAWING: Figure 8
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