Title:
BATTERY MANAGEMENT SYSTEM PROVIDING NOISE CANCELLATION OF CAN COMMUNICATION, ENERGY STORAGE SYSTEM, AND BATTERY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/132499
Kind Code:
A1
Abstract:
The present invention relates to a battery management system that provides noise cancellation of CAN communication, an energy storage device, and a battery system. The battery management system of the present invention, which is a battery management system for managing a battery pack including a plurality of battery cells connected in series, comprises: a variable capacitor which is connected between the CAN communication line and the ground and in which capacitance corresponding to a supplied voltage level is accumulated; a plurality of resistors connected between an external power supply and the ground; a switching unit including a plurality of switches which electrically connect one end of each of the plurality of resistors and one end of the variable capacitor; and a control unit that controls the switching unit such that the voltage of the external power supply is transferred to the variable capacitor.
More Like This:
Inventors:
LEE MUYEON (KR)
Application Number:
PCT/KR2022/019978
Publication Date:
July 13, 2023
Filing Date:
December 08, 2022
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
G01R31/396; G01R19/00; G01R23/16; G01R31/36; G01R31/371; H04L12/40; H04L25/02
Foreign References:
| KR101222248B1 | 2013-01-15 | |||
| US20200317085A1 | 2020-10-08 | |||
| US20210151996A1 | 2021-05-20 | |||
| KR101156342B1 | 2012-06-13 | |||
| KR20190069889A | 2019-06-20 | |||
| KR20220001803A | 2022-01-06 |
Attorney, Agent or Firm:
YOU ME PATENT AND LAW FIRM (KR)
Download PDF: