Title:
CHARGING MANAGEMENT DEVICE, CHARGING MANAGEMENT METHOD, AND ELECTRIC VEHICLE
Document Type and Number:
WIPO Patent Application WO/2022/092612
Kind Code:
A1
Abstract:
A charging management device according to the present invention comprises: a first main relay connected to and disposed between a positive electrode terminal of a battery pack and a first charging terminal of a charging connector; a current regulator which includes a free-charge relay and a resistance regulation circuit connected to each other in series, and is connected to the first main relay in parallel; a voltage sensor for measuring a voltage of the battery pack; a current sensor for measuring a current of the battery pack; and a controller which controls the first main relay to be in an off state, configures the resistance regulation circuit with a first resistance value, controls the first main relay to be in an on state in response to satisfaction of a first conversion condition while executing a first charging process of controlling the free-charge relay to be in an on state, and executes a second charging process of controlling the free-charge relay to be in an off state. The controller configures the resistance regulation circuit with a second resistance value in response to satisfaction of a second conversion condition while the second charging process is being executed, controls the free-charge relay to be in an on state, and executes a third charging process of controlling the first main relay to be in an off state.
Inventors:
LEE SANG-RAE (KR)
Application Number:
PCT/KR2021/013832
Publication Date:
May 05, 2022
Filing Date:
October 07, 2021
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
B60L58/15; B60L3/00; B60L53/16; B60L53/31; H02J7/00
Foreign References:
| KR20180093322A | 2018-08-22 | |||
| KR20160099357A | 2016-08-22 | |||
| KR20140109086A | 2014-09-15 | |||
| US20150231976A1 | 2015-08-20 | |||
| JP2016163534A | 2016-09-05 | |||
| KR20200139758A | 2020-12-14 |
Attorney, Agent or Firm:
PHIL & ONZI INT'L PATENT & LAW FIRM (KR)
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