Title:
LEAKAGE CURRENT DETECTING DEVICE, LEAKAGE CURRENT DETECTING METHOD, AND ELECTRIC VEHICLE
Document Type and Number:
WIPO Patent Application WO/2021/085885
Kind Code:
A1
Abstract:
A leakage current detecting device for a battery included in an electric vehicle, according to the present invention, transfers a first voltage, corresponding to a voltage between an anode terminal of the battery and a chassis of the electric vehicle, to an analog-to-digital converter through a capacitor. The leakage current detecting device transfers a second voltage, corresponding to a voltage between a cathode terminal of the battery and the chassis, to the analog-to-digital converter through the capacitor. The analog-to-digital converter outputs, by using the anode terminal as a ground, digital signals indicating the first voltage and the second voltage. The leakage current detecting device determines, on the basis of the digital signals, the first voltage and the second voltage, and then detects a leakage current between the battery and the chassis on the basis of the first voltage and the second voltage.
Inventors:
HAM SANG-HYEOK (KR)
KIM JONG-WAN (KR)
KIM JONG-WAN (KR)
Application Number:
PCT/KR2020/013691
Publication Date:
May 06, 2021
Filing Date:
October 07, 2020
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
B60L50/40; B60L3/00; B60L53/20; B60L58/19; G01R27/02; G01R31/00; G01R31/50
Foreign References:
| KR20100027085A | 2010-03-10 | |||
| JPH06153301A | 1994-05-31 | |||
| JP2010217146A | 2010-09-30 | |||
| JP2012137422A | 2012-07-19 | |||
| KR20190056554A | 2019-05-27 | |||
| KR20190135660A | 2019-12-09 | |||
| KR20190135661A | 2019-12-09 | |||
| KR20200127292A | 2020-11-11 |
Other References:
See also references of EP 3988372A4
Attorney, Agent or Firm:
PHIL & ONZI INT'L PATENT & LAW FIRM (KR)
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