Title:
MOTOR CONTROLLER PROVIDED WITH NOVEL GEAR SELECTION CIRCUIT AND BLDC MOTOR
Document Type and Number:
WIPO Patent Application WO/2023/015877
Kind Code:
A1
Abstract:
Provided are a motor controller provided with a gear selection circuit and a BLDC motor, said motor controller comprising a gear selection circuit, a micro control unit (MCU), and an inverter circuit. Each gear signal M is split into two signals, which are inputted into a motor start-up signal input circuit and a motor stop signal input circuit, respectively, and the motor start-up signal input circuit and the motor stop signal input circuit output two level signals IO-a and IO-b to MCU, respectively. The motor start-up signal input circuit is provided with a threshold voltage U1, the motor stop signal input circuit is provided with a threshold voltage U2, and a potential difference is provided between the threshold voltage U1 and the threshold voltage U2. The MCU determines the start/stop state of the motor on the basis of the values of the two level signals IO-a and IO-b. Thus, the described motor controller can achieve accurate start/stop control and high reliability.
Inventors:
ZHANG XIANSHENG (CN)
BIAN WENQING (CN)
BIAN WENQING (CN)
Application Number:
PCT/CN2022/079834
Publication Date:
February 16, 2023
Filing Date:
March 09, 2022
Export Citation:
Assignee:
ZHONGSHAN BROAD OCEAN MOTOR CO (CN)
International Classes:
H02P6/20; B60W30/19; H02P6/24; H02P25/02; H02P25/16; H02P27/06
Foreign References:
| CN216134439U | 2022-03-25 | |||
| CN215734083U | 2022-02-01 | |||
| JP2015033151A | 2015-02-16 | |||
| CN105952889A | 2016-09-21 | |||
| US20210270363A1 | 2021-09-02 |
Other References:
SHI ZHENHAI: "Wiper Failure of Chang'an Mazda Axela", AUTO MAINTENANCE & REPAIR, 1 February 2016 (2016-02-01), pages 52 - 54, XP093035048, ISSN: 1006-6489, DOI: 10.16613/j.cnki.1006-6489.2016.02.048
Attorney, Agent or Firm:
ZHONGSHAN HANTONG INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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