Leakage current detection apparatus, leakage current detection method, and electric vehicle
A leakage detection, electric vehicle technology, applied in electric vehicles, electric vehicle charging technology, vehicle components, etc., can solve problems such as poor insulation state, failure to provide batteries to users, and difficulty in application
Pending Publication Date: 2021-12-31
LG ENERGY SOLUTION LTD
View PDF17 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Therefore, it is difficult to apply the technique of Patent Document 1 when using the negative terminal of the battery instead of the chassis as the ground
[0008] In addition, the related technology only detects the leakage of the battery, but cannot provide information to the user about which part of the battery is in a poor insulation state
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0051] Hereinafter, preferred embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. Before proceeding with the description, it should be understood that the terms or words used in the specification and appended claims should not be interpreted as limited to the common or dictionary meanings, but should be understood in such a way as to enable the inventors to define the most suitable for best description The principle of terms is explained based on meanings and concepts corresponding to technical aspects of the present disclosure.
[0052] Therefore, the embodiments described herein and the illustrations shown in the drawings are only the most preferred embodiments of the present disclosure, and are not intended to fully describe the technical aspects of the present disclosure, so it should be understood that the Various other equivalents and modifications thereof are formed.
[0053] Terms including ordinal numbers suc...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A leakage current detection apparatus for a battery included in an electric vehicle according to the present disclosure transmits a first voltage corresponding to a voltage between a negative terminal of the battery and a chassis of the electric vehicle to an analog-to-digital converter through a capacitor. The leakage current detection device transmits a second voltage corresponding to a voltage between the positive terminal of the battery and the chassis to the analog-to-digital converter through the capacitor. The analog-to-digital converter outputs a digital signal indicative of the first voltage and the second voltage using the negative terminal as ground. The leakage current detection device determines a first voltage and a second voltage based on the digital signal, and then detects a leakage current between the battery and the chassis based on the first voltage and the second voltage.
Description
technical field [0001] The present disclosure relates to techniques for detecting leakage between a battery and a chassis. [0002] This application claims Korean Patent Application No. 10-2019-0135660 filed in Korea on October 29, 2019, Korean Patent Application No. 10-2019-0135661 filed in Korea on October 29, 2019, and Priority to Korean Patent Application No. 10-2020-0127292 filed in Korea on September 29, the disclosures of which are incorporated herein by reference. Background technique [0003] Recently, the demand for portable electronic products such as laptop computers, video cameras, and mobile phones has increased dramatically, and with the massive development of electric vehicles, energy storage batteries, robots, and satellites, there is increasing demand for high-performance electronic devices that can be repeatedly recharged. Batteries conduct many studies. [0004] Currently, commercially available batteries include nickel-cadmium batteries, nickel-metal h...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/382
CPCG01R31/3648G01R31/382B60L58/19Y02T90/14B60L3/0069G01R31/52G01R27/025G01R31/006Y02T10/70G01R31/3835
Inventor 咸相赫金钟阮
Owner LG ENERGY SOLUTION LTD