Title:
CHARGING CONTROL METHOD, CONTROL DEVICE, CHARGING PILE, AND CHARGING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/213120
Kind Code:
A1
Abstract:
A charging control method, a control device, a charging pile, and a charging system. The method is applied to the charging pile. The method comprises: when a charging pile charges each battery, acquiring a charging current, a charging loop terminal voltage, and a voltage of each battery by means of a battery management system; obtaining a connection cable resistance value and an internal resistance of each battery according to the charging current, the charging loop terminal voltage, and each voltage; determining, according to the connection cable resistance value and the internal resistance of each battery, whether early warning is needed; and if early warning is needed, reducing the duty cycle of a first signal, and outputting the first signal to a charging control unit, such that the charging control unit controls the charging current according to the first signal. By means of the method, the charging pile can perform information interaction with a battery pack, so that the charging pile performs safe charging control according to charging parameters, and the charging safety risk is reduced.
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Inventors:
MO YULONG (CN)
Application Number:
PCT/CN2023/078501
Publication Date:
November 09, 2023
Filing Date:
February 27, 2023
Export Citation:
Assignee:
AUTEL DIGITAL POWER CO LTD (CN)
International Classes:
B60L53/62; B60L53/66
Foreign References:
| CN114750633A | 2022-07-15 | |||
| CN113328497A | 2021-08-31 | |||
| CN108400642A | 2018-08-14 | |||
| CN109874352A | 2019-06-11 | |||
| CN107342608A | 2017-11-10 | |||
| CN114084000A | 2022-02-25 | |||
| US20150331472A1 | 2015-11-19 | |||
| JP2019204646A | 2019-11-28 |
Attorney, Agent or Firm:
AFD CHINA INTELLECTUAL PROPERTY LAW OFFICE (CN)
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