Title:
ELECTRIC MOTOR CONTROL METHOD AND ELECTRIC MOTOR SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/075616
Kind Code:
A1
Abstract:
Disclosed is an electric motor control method, comprising the following steps: when the position of a magnetic member changes relative to a magnetic detection device, acquiring a magnetic field parameter generated by the magnetic detection device inducing a magnetic field of the magnetic member; determining the magnetic field parameter, starting an electric motor when the magnetic field parameter is greater than a starting threshold value, and stopping supplying power to the electric motor when the magnetic field parameter is less than the starting threshold value; and after the electric motor is started when the magnetic field parameter is greater than the starting threshold value, continuing to acquire a magnetic field parameter change, induced by the magnetic detection device, of the magnetic member, and carrying out speed regulation on the electric motor according to the magnetic field parameter change.
Inventors:
LIU BAIXIANG (CN)
CHEN YANHUA (CN)
ZHOU SHUYU (CN)
CHEN YANHUA (CN)
ZHOU SHUYU (CN)
Application Number:
PCT/CN2017/106381
Publication Date:
April 25, 2019
Filing Date:
October 16, 2017
Export Citation:
Assignee:
SHENZHEN H & T INTELLIGENT CONTROL CO LTD (CN)
International Classes:
H02P6/22
Foreign References:
| CN1297605A | 2001-05-30 | |||
| CN106788000A | 2017-05-31 | |||
| CN106059410A | 2016-10-26 |
Attorney, Agent or Firm:
LIUJIA CHINA IP LAW OFFICE (CN)
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