Title:
BATTERY CHARGING CONTROL METHOD AND APPARATUS, AND ELECTRIC VEHICLE
Document Type and Number:
WIPO Patent Application WO/2020/207111
Kind Code:
A1
Abstract:
Disclosed by the present invention are a battery charging control method and apparatus as well as a device powered by a battery such as an electric vehicle. The method is used for controlling a battery cell which is at least one battery cell in a multi-cell battery. The method comprises: obtaining the actual charge level required for charging the battery cell to a target voltage after the multi-cell battery enters a stable charging state; determining the equalization duration of the battery cell on the basis of the actual charge level corresponding to the battery cell, the equalization duration being the duration required for controlling the battery cell by a battery cell equalization control circuit that matches the battery cell; and controlling the battery cell equalization control circuit that matches the battery cell to perform power level adjustment on the battery cell during the equalization duration. The present invention solves the technical problem of low accuracy in equalization control of each battery cell in a multi-cell battery in the related art.
Inventors:
ZHANG JIUCAI (CN)
MEI AO (CN)
WANG JUN (CN)
LI ZHI (CN)
LIU CHAO (CN)
GUO SICHAO (CN)
MEI AO (CN)
WANG JUN (CN)
LI ZHI (CN)
LIU CHAO (CN)
GUO SICHAO (CN)
Application Number:
PCT/CN2020/074783
Publication Date:
October 15, 2020
Filing Date:
February 12, 2020
Export Citation:
Assignee:
GUANGZHOU AUTOMOBILE GROUP CO (CN)
International Classes:
H02J7/00
Foreign References:
| CN107769309A | 2018-03-06 | |||
| CN107925259A | 2018-04-17 | |||
| CN102544609A | 2012-07-04 | |||
| US20130099747A1 | 2013-04-25 |
Attorney, Agent or Firm:
SHENZHEN RONDA PATENT AND TRADEMARK LAW OFFICE (CN)
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