Title:
VEHICLE-MOUNTED CHARGING AND DISCHARGING SYSTEM AND CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2021/077763
Kind Code:
A1
Abstract:
Disclosed are a vehicle-mounted charging and discharging system and a method. The system comprises: an alternating-current interface, an isolation switching switch, a first converter, a second converter, a high-voltage battery interface, a low-voltage battery interface and a controller, The controller is used for controlling the isolation switching switch to be switched to a first conduction state, so that the alternating-current interface is connected to the high-voltage battery interface by means of the first converter and the second converter connected in series; and controlling the first converter to work in a PFC mode or an inversion mode, and controlling the second converter to work in a DCDC isolation conversion mode; The controller is also used for controlling the isolation switching switch to be switched to a second conduction state, so that the low-voltage battery interface is connected to the high-voltage battery interface by means of the first converter and the second converter connected in series; and controlling the first converter to work in a DCDC conversion mode, and controlling the second converter to work in the DCDC isolation conversion mode. By means of a structure, the volume of a vehicle-mounted charging and discharging system can be reduced.
Inventors:
LIU WEIPING (CN)
CUI ZHAOXUE (CN)
LIANG YONGTAO (CN)
CUI ZHAOXUE (CN)
LIANG YONGTAO (CN)
Application Number:
PCT/CN2020/095268
Publication Date:
April 29, 2021
Filing Date:
June 10, 2020
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H02J7/02; B60R16/033; H02J7/00; H02M3/335; H02M7/797
Foreign References:
| CN110707792A | 2020-01-17 | |||
| CN107662498A | 2018-02-06 | |||
| CN106208641A | 2016-12-07 | |||
| CN107359682A | 2017-11-17 | |||
| KR20130016874A | 2013-02-19 | |||
| CN201911018627A | 2019-10-24 |
Other References:
See also references of EP 3972078A4
Attorney, Agent or Firm:
SHENPAT INTELLECTUAL PROPERTY AGENCY (CN)
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