JP2019056626A - 地絡検出装置 - Google Patents
地絡検出装置 Download PDFInfo
- Publication number
- JP2019056626A JP2019056626A JP2017181183A JP2017181183A JP2019056626A JP 2019056626 A JP2019056626 A JP 2019056626A JP 2017181183 A JP2017181183 A JP 2017181183A JP 2017181183 A JP2017181183 A JP 2017181183A JP 2019056626 A JP2019056626 A JP 2019056626A
- Authority
- JP
- Japan
- Prior art keywords
- capacitor
- insulation resistance
- battery
- ground fault
- measurement path
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0069—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to the isolation, e.g. ground fault or leak current
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/025—Measuring very high resistances, e.g. isolation resistances, i.e. megohm-meters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/14—Circuits therefor, e.g. for generating test voltages, sensing circuits
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/64—Testing of capacitors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/005—Testing of electric installations on transport means
- G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
Description
ここで、前記制御部は、前記常開型スイッチを閉に切り替えたときの前記Vcn測定経路での前記コンデンサの充電電圧測定値が0とみなされない場合に、この充電電圧測定値を用いて前記正側絶縁抵抗を算出することができる。
また、前記常開型スイッチを閉に切り替えたときの前記Vcn測定経路での前記コンデンサの充電電圧測定値が0とみなせる場合に、前記昇圧回路による昇圧比と前記バイパス抵抗値とに基づいて、前記正側絶縁抵抗の最大値を算出することができる。
V1<(V2×RLn/(RLn+RLp))
が成り立つときである。これは、昇圧回路210における昇圧比率が高く、負極側絶縁抵抗RLnに対して正極側絶縁抵抗RLpが低下している状態である。例えば、昇圧率が2倍であれば、負極側絶縁抵抗RLn>正極側絶縁抵抗RLpのときに計測不能となる。
V1<(V2×BR/(BR+RLp))
が成り立っている。
RLp<BR×(V2−V1)/V1
が得られ、1次側電圧V1と2次側電圧V2とバイパス抵抗BRとを用いて、正極側絶縁抵抗RLpの最大値RLpmaxを算出することができる。これにより、正極側絶縁抵抗RLpが少なくともRLpmax以下であることを検出することが可能となる。ここで、上不等式の右辺BR×(V2−V1)/V1は、昇圧比から1を引いた値にバイパス抵抗BRを乗じた値を意味している。
120 制御装置
200 外部制御装置
210 昇圧回路
300 バッテリ
360 負荷
BR バイパス抵抗
C1 コンデンサ
RL 絶縁抵抗
S1、S2、S3、S4、Sa スイッチ
Claims (3)
- 昇圧回路を介して負荷に電源を供給する非接地のバッテリと接続し、前記バッテリが設けられた系の絶縁抵抗を算出して地絡を検出する地絡検出装置であって、
フライングキャパシタとして動作するコンデンサと、
前記バッテリ、前記コンデンサを含んだV0測定経路と、前記バッテリ、前記バッテリ負側と接地との絶縁抵抗である負側絶縁抵抗、前記コンデンサを含んだVcn測定経路と、前記バッテリ、前記バッテリ正側と接地との絶縁抵抗である正側絶縁抵抗、前記コンデンサを含んだVcn測定経路と、を切り換えるスイッチ群と、
常開型スイッチを介して前記負側絶縁抵抗と並列に接続されたバイパス抵抗と、
前記各測定経路での前記コンデンサの充電電圧測定値に基づいて前記絶縁抵抗を算出する際に、前記Vcn測定経路での前記コンデンサの充電電圧測定値が0とみなせる場合に、
前記常開型スイッチを閉に切り替えて、前記Vcn測定経路での前記コンデンサの充電電圧を測定する制御部と、
を備えたことを特徴とする地絡検出装置。 - 前記制御部は、
前記常開型スイッチを閉に切り替えたときの前記Vcn測定経路での前記コンデンサの充電電圧測定値が0とみなされない場合に、
この充電電圧測定値を用いて前記正側絶縁抵抗を算出することを特徴とする請求項1に記載の地絡検出装置。 - 前記制御部は、
前記常開型スイッチを閉に切り替えたときの前記Vcn測定経路での前記コンデンサの充電電圧測定値が0とみなせる場合に、
前記昇圧回路による昇圧比と前記バイパス抵抗値とに基づいて、前記正側絶縁抵抗の最大値を算出することを特徴とする請求項1または2に記載の地絡検出装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017181183A JP6698599B2 (ja) | 2017-09-21 | 2017-09-21 | 地絡検出装置 |
US16/126,934 US10613156B2 (en) | 2017-09-21 | 2018-09-10 | Ground fault detection apparatus |
DE102018216025.2A DE102018216025A1 (de) | 2017-09-21 | 2018-09-20 | Erdschlussdetektionsvorrichtung |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017181183A JP6698599B2 (ja) | 2017-09-21 | 2017-09-21 | 地絡検出装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2019056626A true JP2019056626A (ja) | 2019-04-11 |
JP6698599B2 JP6698599B2 (ja) | 2020-05-27 |
Family
ID=65526698
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017181183A Active JP6698599B2 (ja) | 2017-09-21 | 2017-09-21 | 地絡検出装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US10613156B2 (ja) |
JP (1) | JP6698599B2 (ja) |
DE (1) | DE102018216025A1 (ja) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3582584A1 (en) * | 2018-06-12 | 2019-12-18 | Continental Automotive GmbH | Electric circuit and diagnostic method for an electric load |
DE202018104044U1 (de) * | 2018-07-13 | 2019-10-15 | Wago Verwaltungsgesellschaft Mbh | Erdleiter-Überwachung |
EP3608152B1 (en) * | 2018-08-06 | 2022-06-22 | Ningbo Geely Automobile Research & Development Co. Ltd. | Method for detecting an isolation fault |
JP6918428B2 (ja) * | 2018-12-18 | 2021-08-11 | 矢崎総業株式会社 | 地絡検出装置 |
GB2578339B (en) | 2019-03-25 | 2020-12-30 | Greentec International Ltd | Open PEN detection and shut down system |
JP7086886B2 (ja) * | 2019-04-03 | 2022-06-20 | 矢崎総業株式会社 | 地絡検出装置 |
JP7118935B2 (ja) * | 2019-09-10 | 2022-08-16 | 矢崎総業株式会社 | 地絡検出装置 |
KR20210060210A (ko) | 2019-11-18 | 2021-05-26 | 주식회사 엘지에너지솔루션 | 절연저항 측정 장치 및 그 장치를 적용하는 배터리 시스템 |
CN114184897A (zh) * | 2020-09-15 | 2022-03-15 | 广汽埃安新能源汽车有限公司 | 绝缘检测电路和方法、动力电池快充方法及相关装置 |
CN112498171B (zh) * | 2020-12-14 | 2023-03-07 | 北汽福田汽车股份有限公司 | 电池监控系统、方法及车辆 |
CN112946508A (zh) * | 2021-02-05 | 2021-06-11 | 奇瑞新能源汽车股份有限公司 | 电动汽车的绝缘失效提醒装置、方法及车辆 |
JP7391482B2 (ja) * | 2021-05-31 | 2023-12-05 | 矢崎総業株式会社 | 地絡検出装置 |
JP7395240B2 (ja) * | 2021-08-06 | 2023-12-11 | 矢崎総業株式会社 | 地絡検出装置 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01165973A (ja) * | 1987-12-23 | 1989-06-29 | Kawasaki Steel Corp | 直流回路の絶縁抵抗測定装置 |
JP2006220520A (ja) * | 2005-02-10 | 2006-08-24 | Honda Motor Co Ltd | 非接地直流電源の絶縁抵抗測定装置及びその方法 |
JP2011017586A (ja) * | 2009-07-08 | 2011-01-27 | Yazaki Corp | 絶縁状態検出装置 |
WO2013130048A1 (en) * | 2012-02-28 | 2013-09-06 | Deere & Company | Method and system for determining dc bus leakage |
JP2015206784A (ja) * | 2014-04-09 | 2015-11-19 | 矢崎総業株式会社 | 非接地電源の絶縁検出装置及び絶縁検出方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW200913433A (en) * | 2007-09-10 | 2009-03-16 | J Tek Inc | Scattered energy storage control system |
JP5947584B2 (ja) * | 2012-03-27 | 2016-07-06 | 矢崎総業株式会社 | 絶縁状態検出装置 |
JP2014020914A (ja) * | 2012-07-18 | 2014-02-03 | Keihin Corp | 漏電検出装置 |
-
2017
- 2017-09-21 JP JP2017181183A patent/JP6698599B2/ja active Active
-
2018
- 2018-09-10 US US16/126,934 patent/US10613156B2/en active Active
- 2018-09-20 DE DE102018216025.2A patent/DE102018216025A1/de active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01165973A (ja) * | 1987-12-23 | 1989-06-29 | Kawasaki Steel Corp | 直流回路の絶縁抵抗測定装置 |
JP2006220520A (ja) * | 2005-02-10 | 2006-08-24 | Honda Motor Co Ltd | 非接地直流電源の絶縁抵抗測定装置及びその方法 |
JP2011017586A (ja) * | 2009-07-08 | 2011-01-27 | Yazaki Corp | 絶縁状態検出装置 |
WO2013130048A1 (en) * | 2012-02-28 | 2013-09-06 | Deere & Company | Method and system for determining dc bus leakage |
JP2015206784A (ja) * | 2014-04-09 | 2015-11-19 | 矢崎総業株式会社 | 非接地電源の絶縁検出装置及び絶縁検出方法 |
Also Published As
Publication number | Publication date |
---|---|
US20190086464A1 (en) | 2019-03-21 |
JP6698599B2 (ja) | 2020-05-27 |
US10613156B2 (en) | 2020-04-07 |
DE102018216025A1 (de) | 2019-03-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6698599B2 (ja) | 地絡検出装置 | |
JP6633585B2 (ja) | 地絡検出装置 | |
JP7118935B2 (ja) | 地絡検出装置 | |
US10222423B2 (en) | Electrical storage system | |
US9255957B2 (en) | Earth fault detection circuit and power source device | |
CN110895312B (zh) | 接地故障检测设备 | |
US20170227589A1 (en) | Abnormality detection device and abnormality detection method | |
JP6391619B2 (ja) | 劣化特定装置および劣化特定方法 | |
US10343524B2 (en) | Weld detection apparatus and weld detection method | |
US20160156258A1 (en) | Power source control device and method for detecting relay abnormality | |
JP2018128440A (ja) | 地絡検出装置 | |
JP2013205257A (ja) | 電源装置、及びこの電源装置を備える車両並びに蓄電装置 | |
US11555863B2 (en) | Ground fault detection device | |
JP2020169874A (ja) | 地絡検出装置 | |
US9778307B2 (en) | Insulation fault detection device for testing for insulation faults under critical conditions | |
KR20130096481A (ko) | 릴레이 시퀀스 제어 장치 및 그 제어 방법 | |
JP6918428B2 (ja) | 地絡検出装置 | |
JP2018127085A (ja) | 地絡検出装置、電源システム | |
JP7171412B2 (ja) | 地絡検出装置 | |
US11592470B2 (en) | Insulation abnormality detection apparatus | |
CN110198059B (zh) | 用于对能量储存器进行充电的方法 | |
JP6836411B2 (ja) | 地絡検出装置、電源システム | |
KR20150083802A (ko) | 배터리의 부하 스위치의 기능성 검출 방법, 및 배터리의 부하 스위치의 기능성 검출 장치를 구비한 배터리 | |
JP6919302B2 (ja) | 車両用蓄電装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
RD04 | Notification of resignation of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7424 Effective date: 20180215 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20181219 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20191016 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20191105 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20191219 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20200421 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20200428 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6698599 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |