Title:
MOTOR CONTROL METHOD, RANGE SENSOR, AND MOVABLE PLATFORM
Document Type and Number:
WIPO Patent Application WO/2020/142958
Kind Code:
A1
Abstract:
A motor control method, a range sensor, and a movable platform. The method (100) comprises: acquiring a current temperature of a bearing or a motor, wherein the bearing and the motor are directly or indirectly connected, and heat can be conducted therebetween (S110); determining an energization mode of the motor according to the current temperature, the energization mode comprising a heating mode and a rotating operation mode (S120); and controlling the motor such that a corresponding current is supplied thereto according to the energization mode, wherein in the heating mode, the motor is controlled such that a first pre-determined current is supplied thereto to generate heat and heat the bearing, and in the rotating operation mode, the motor is controlled such that a second pre-determined current is supplied thereto, such that the motor rotates at a first pre-determined speed to drive a function component to move (S130). The motor control method, the range sensor, and the movable platform reduce the viscosity of a lubricant by pre-heating a motor bearing at a low ambient temperature, thereby effectively reducing a motor current during start-up, and improving motor speed stability in a steady state.
Inventors:
CHEN HONGBIN (CN)
Application Number:
PCT/CN2019/071046
Publication Date:
July 16, 2020
Filing Date:
January 09, 2019
Export Citation:
Assignee:
SZ DJI TECHNOLOGY CO LTD (CN)
International Classes:
H02P21/00
Foreign References:
| CN106452194A | 2017-02-22 | |||
| CN108885473A | 2018-11-23 | |||
| CN103151983A | 2013-06-12 | |||
| CN104660133A | 2015-05-27 | |||
| CN205407512U | 2016-07-27 | |||
| US20090322272A1 | 2009-12-31 |
Attorney, Agent or Firm:
P. C. & ASSOCIATES (CN)
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