Title:
DRIVING ASSEMBLY AND CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/001026
Kind Code:
A1
Abstract:
The embodiments of the present application relate to the technical field of charging. Disclosed are a driving assembly and a control method therefor, by means of which electromagnetic interference can be reduced, thereby reducing the impacts of EMC on the safe operation of a vehicle. The specific solution is as follows: the driving assembly comprises a two-level inverter circuit, a first filtering magnetic ring and an electric motor coil, wherein a first input end and a second input end of the two-level inverter circuit are respectively used for connecting to the positive electrode and the negative electrode of a battery pack in a coupled manner, and the first input end of the two-level inverter circuit is further used for connecting to the positive electrode of a direct-current power source in a coupled manner; a three-phase output end of the two-level inverter circuit is respectively coupled to three ends of the electric motor coil by means of the first filtering magnetic ring, and before passing through the first filtering magnetic ring, a first output end in the three-phase output end of the two-level inverter circuit is used for connecting to the negative electrode of the direct-current power source in a coupled manner; when excitation is performed on the electric motor coil, the directions of a current passing through the first filtering magnetic ring twice are opposite to each other; and when the battery pack is being charged, the directions of the current passing through the first filtering magnetic ring twice are also opposite to each other.
Inventors:
WANG DECHEN (CN)
XUAN YANCHENG (CN)
ZHU YONGSHENG (CN)
XUAN YANCHENG (CN)
ZHU YONGSHENG (CN)
Application Number:
PCT/CN2022/105214
Publication Date:
January 26, 2023
Filing Date:
July 12, 2022
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
B60L53/24; H02J7/10; H02M1/44; H02P27/08
Domestic Patent References:
| WO2020248023A1 | 2020-12-17 |
Foreign References:
| CN113783407A | 2021-12-10 | |||
| CN112910037A | 2021-06-04 | |||
| US6476571B1 | 2002-11-05 | |||
| US10562404B1 | 2020-02-18 |
Other References:
KIM SEOK-MIN; LEE KYO-BEUM: "Circuit Design and Control Method of Electric Vehicle Battery Charger Using Traction Motor and Inverter", 2019 10TH INTERNATIONAL CONFERENCE ON POWER ELECTRONICS AND ECCE ASIA (ICPE 2019 - ECCE ASIA), THE KOREAN INSTITUTE OF POWER ELECTRONICS (KIPE), 27 May 2019 (2019-05-27), pages 3021 - 3026, XP033596924
Attorney, Agent or Firm:
BEIJING ZBSD PATENT & TRADEMARK AGENT LTD. (CN)
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