BATTERY MANAGEMENT SYSTEM, BATTERY PACK, ELECTRIC VEHICLE AND BATTERY CHARGING TIME PREDICTION METHOD

Title:

BATTERY MANAGEMENT SYSTEM, BATTERY PACK, ELECTRIC VEHICLE AND BATTERY CHARGING TIME PREDICTION METHOD

Document Type and Number:

WIPO Patent Application WO/2024/058404

Kind Code:

A1

Abstract:

A battery management system, a battery pack, an electric vehicle and a battery charging time prediction method are provided. The battery management system comprises: a memory for storing a plurality of reference charging maps; a sensing unit for detecting the voltage, current, and temperature of a battery; and a control unit for determining an SOC estimation value of the battery. Each reference charging map includes first to M-th reference current values and first to M-th reference power curves associated with first to M-th SOC sections. The control unit acquires an m-th reference power curve and an m-th reference current value, which are associated with an m-th SOC section to which the SOC estimate value belongs, from the reference charging map associated with a temperature section to which a temperature detection value of the battery belongs. The control unit determines, according to the results of a comparison between the maximum output power of a charger and the m-th reference power curve, the time required to reach an end point of the m-th SOC section on the basis of at least one from among the difference between the end point of the m-th SOC section and the SOC estimation value, the m-th reference current value, the maximum output power and the m-th reference power curve.

More Like This:

JP5650246	Excavator
JP5539542	Battery system for micro-hybrid vehicles with high power consumption equipment
WO/2020/148851	POWER TRANSMISSION AND RECEPTION MANAGEMENT DEVICE AND PROGRAM

Inventors:

KIM JAE-GU (KR)

Application Number:

PCT/KR2023/010664

Publication Date:

March 21, 2024

Filing Date:

July 24, 2023

Export Citation:

Click for automatic bibliography generation Help

Assignee:

LG ENERGY SOLUTION LTD (KR)

International Classes:

H02J7/00; B60L58/12; G01R22/06; G01R31/36; G01R31/382; G01R31/3842; G01R31/385; H01M10/48

Foreign References:

KR20220021277A	2022-02-22
KR20210043351A	2021-04-21
US20200373779A1	2020-11-26
US20190363547A1	2019-11-28
JP2009159765A	2009-07-16

Attorney, Agent or Firm:

PHIL & ONZI INT'L PATENT & LAW FIRM (KR)

Download PDF:

View/Download PDF PDF Help

Previous Patent: AGRICULTURAL WORK VEHICLE AND METHOD FOR CONTROLLING SAME

Next Patent: ELECTRONIC DEVICE AND METHOD FOR CONTROLLING ELECTRONIC DEVICE