Title:
MOTOR TEMPERATURE DETECTION METHOD AND DEVICE, AND AERIAL VEHICLE
Document Type and Number:
WIPO Patent Application WO/2018/010679
Kind Code:
A1
Abstract:
A motor temperature detection method and device, and an aerial vehicle. The method comprises the following steps: in the control process of a motor, superposing a detection current on a given d-axis current of the motor, and enabling the motor to operate in the maximum torque control mode (S1); obtaining a d-axis voltage, a d-axis current and a q-axis current of the motor (S2); and calculating the stator resistance of the motor according to the d-axis voltage, the d-axis current and the q-axis current, and obtaining the temperature of the motor according to the stator resistance (S3). In the method, in a case in which extra devices are not added, the temperature of the motor is detected by detecting the stator resistance, and accordingly the problems of low system reliability, difficult assembly and high costs caused by the use of a temperature collection device are effectively avoided.
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Inventors:
YU JIANGTAO (CN)
Application Number:
PCT/CN2017/092837
Publication Date:
January 18, 2018
Filing Date:
July 13, 2017
Export Citation:
Assignee:
GUANGZHOU XAIRCRAFT TECH CO LTD (CN)
International Classes:
H02P21/14
Foreign References:
| CN106257823A | 2016-12-28 | |||
| CN105490606A | 2016-04-13 | |||
| CN101783646A | 2010-07-21 | |||
| CN102710208A | 2012-10-03 | |||
| CN105227029A | 2016-01-06 | |||
| US20120306422A1 | 2012-12-06 |
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
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