JP5705730B2 - バッテリーの漏洩電流感知装置及び方法、並びに前記装置を含むバッテリー駆動装置及びバッテリーパック - Google Patents
バッテリーの漏洩電流感知装置及び方法、並びに前記装置を含むバッテリー駆動装置及びバッテリーパック Download PDFInfo
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- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
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- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/12—Recording operating variables ; Monitoring of operating variables
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- 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
- B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
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- 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
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
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- 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
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- G—PHYSICS
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
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- 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
Description
バッテリーのカソード端子またはアノード端子から検出される電圧を充電する浮動キャパシタ;
前記カソードまたはアノード端子側の電圧検出経路を選択する端子選択スイッチング部;
前記選択された電圧検出経路から検出されるカソードまたはアノード端子側の検出電圧を前記浮動キャパシタに充電させる充電スイッチング部;
前記浮動キャパシタに充電されたアノード端子側の検出電圧極性を反転させる極性反転スイッチング部;及び
前記浮動キャパシタに充電されたカソード端子側検出電圧と極性反転されたアノード端子側検出電圧とをセンシングして下記数学式に従って漏洩抵抗を計算し、
前記漏洩抵抗を基準絶縁抵抗と比較して漏洩電流の発生可否を判別する漏洩電流判別部;を含むことを特徴とする。
(a)バテリーカソード端子側の電圧検出経路を選択してバッテリーカソード端子の検出電圧を浮動キャパシタに充電させた後充電されたカソード端子の検出電圧をセンシングするステップ;
(b)バッテリーアノード端子側の電圧検出経路を選択してバッテリーアノード端子の検出電圧を前記浮動キャパシタに充電させた後充電されたアノード端子の検出電圧を反転させてセンシングするステップ;
(c)センシングされた前記カソード端子の検出電圧とアノード端子の極性反転された検出電圧とを利用して下記数学式に従って漏洩抵抗を計算するステップ;
及び
(d)前記漏洩抵抗を基準絶縁抵抗と比較して漏洩電流発生可否を判別するステップ;を含むことを特徴とする。
Claims (14)
- バッテリーのカソード端子またはアノード端子から検出される電圧を充電する浮動キャパシタ;
前記カソードまたはアノード端子側の電圧検出経路を選択する端子選択スイッチング部;
前記選択された電圧検出経路から検出されるカソードまたはアノード端子側の検出電圧を前記浮動キャパシタに充電させる充電スイッチング部;
前記浮動キャパシタに充電されたアノード端子側の検出電圧極性を反転させる極性反転スイッチング部;及び
前記浮動キャパシタに充電されたカソード端子側検出電圧と極性反転されたアノード端子側検出電圧とをセンシングして下記数学式に従って漏洩抵抗を計算し、
前記漏洩抵抗を基準絶縁抵抗と比較して漏洩電流の発生可否を判別する漏洩電流判別部;を含むことを特徴とするバッテリーの漏洩電流感知装置。 - バッテリーのカソード及びアノード端子間の第1線路上に設けられた電圧配分ノードをさらに含み、
前記端子選択スイッチング部は、
前記電圧配分ノードとバッテリーのカソード端子及びアノード端子との間にそれぞれ設けられた第1及び第2スイッチ;及び
前記電圧配分ノードから延長された第2線路上に設けられた第3スイッチを含むことを特徴とする請求項1に記載のバッテリーの漏洩電流感知装置。 - 前記第2線路と並列配置された第3線路をさらに含み、
前記浮動キャパシタは、前記第3線路に設けられることを特徴とする請求項2に記載のバッテリーの漏洩電流感知装置。 - 前記充電スイッチング部は、前記浮動キャパシタの第1端子と前記選択された電圧検出経路との連結をスイッチングする第4スイッチと、前記浮動キャパシタの第2端子と接地との連結をスイッチングする第5スイッチとを含むことを特徴とする請求項1ないし請求項3のうち何れかに記載のバッテリーの漏洩電流感知装置。
- 前記極性反転スイッチング部は、前記浮動キャパシタの第1端子と接地との連結をスイッチングする第6スイッチと、前記浮動キャパシタの第2端子と前記選択された電圧検出経路との連結をスイッチングする第7スイッチとを含むことを特徴とする請求項1ないし請求項3のうち何れかに記載のバッテリーの漏洩電流感知装置。
- 前記漏洩電流判別部は、
前記端子選択スイッチング部、前記充電スイッチング部及び前記極性反転スイッチング部の動作を制御するスイッチ制御器;
前記カソード端子側の検出電圧とアノード端子側の極性反転された検出電圧とを前記浮動キャパシタからセンシングした後アナログ電圧信号を出力する電圧センシング機器;
前記出力されたアナログ電圧信号をデジタル電圧信号に変換するA/Dコンバータ;及び
前記A/Dコンバータからデジタル電圧信号の入力を受けて漏洩抵抗を計算した後前記漏洩抵抗を基準絶縁抵抗と比較して漏洩電流発生可否を判別する中央演算処理機;を含むことを特徴とする請求項1に記載のバッテリーの漏洩電流感知装置。 - 前記電圧センシング機器は、前記浮動キャパシタから印加されるカソード端子の検出電圧と極性が反転されたアノード端子の検出電圧とをセンシングする差動増幅器を含むことを特徴とする請求項6に記載のバッテリーの漏洩電流感知装置。
- 前記漏洩電流判別部は、
漏洩電流発生事実を視覚的または聴覚的に警報する漏洩電流警報機を含み、漏洩電流が発生した場合、前記漏洩電流警報機を通じて漏洩電流発生事実を視覚的または聴覚的に警報することを特徴とする請求項1に記載のバッテリーの漏洩電流感知装置。 - 前記漏洩電流判別部は、前記計算された漏洩抵抗が基準絶縁抵抗より小さければ、漏洩電流が発生したと判別することを特徴とする請求項1に記載のバッテリーの漏洩電流感知装置。
- 請求項1または請求項9に記載のバッテリーの漏洩電流感知装置を含むバッテリー駆動装置。
- 請求項1または請求項9に記載のバッテリーの漏洩電流感知装置を含むバッテリーパック。
- (a)バッテリーカソード端子側の電圧検出経路を選択してバッテリーカソード端子の検出電圧を浮動キャパシタに充電させた後充電されたカソード端子の検出電圧をセンシングするステップ;
(b)バッテリーアノード端子側の電圧検出経路を選択してバッテリーアノード端子の検出電圧を前記浮動キャパシタに充電させた後充電されたアノード端子の検出電圧を反転させてセンシングするステップ;
(c)センシングされた前記カソード端子の検出電圧とアノード端子の極性反転された検出電圧とを利用して下記数学式に従って漏洩抵抗を計算するステップ;
及び
(d)前記漏洩抵抗を基準絶縁抵抗と比較して漏洩電流発生可否を判別するステップ;を含むことを特徴とするバッテリーの漏洩電流感知方法。 - 漏洩電流が発生したと判別されれば、漏洩電流発生事実を視覚的または聴覚的に警報するステップをさらに含むことを特徴とする請求項12に記載のバッテリーの漏洩電流感知方法。
- 前記(d)ステップにおいて、
前記計算された漏洩抵抗が基準絶縁抵抗より小さい場合、漏洩電流が発生したと判別することを特徴とする請求項12に記載のバッテリーの漏洩電流感知方法。
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KR10-2008-0078499 | 2008-08-11 | ||
KR20080078499 | 2008-08-11 | ||
PCT/KR2009/004448 WO2010018959A2 (ko) | 2008-08-11 | 2009-08-10 | 배터리 누설전류 감지 장치 및 방법, 및 상기 장치를 포함하는 배터리 구동 장치 및 배터리 팩 |
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JP2011530710A JP2011530710A (ja) | 2011-12-22 |
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KR (1) | KR100984241B1 (ja) |
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KR100968350B1 (ko) * | 2007-08-08 | 2010-07-08 | 주식회사 엘지화학 | 배터리의 누설전류 감지 장치 및 방법 |
KR101354583B1 (ko) * | 2010-09-17 | 2014-01-22 | 에스케이이노베이션 주식회사 | 누설전류를 발생시키지 않고 셀프 테스트 기능을 가진 절연저항 측정회로 |
US9945910B2 (en) * | 2011-03-31 | 2018-04-17 | Renesas Electronics Corporation | Voltage monitoring module and voltage monitoring system which compares voltages to determine leakage |
US9404956B2 (en) * | 2011-12-19 | 2016-08-02 | Ford Global Technologies, Llc | Vehicle with selectable battery pack isolation detection circuitry using precision resistors |
DE102012204990A1 (de) * | 2012-03-28 | 2013-10-02 | Robert Bosch Gmbh | Schaltungsanordnung und Verfahren zur Überwachung einer Potentialtrennung |
DE102012222920A1 (de) * | 2012-12-12 | 2014-06-12 | Robert Bosch Gmbh | Batteriesystem mit einer Messeinrichtung zum Messen des Isolationswiderstands eines Hochvolt-Netzes gegenüber einem hiervon galvanisch getrennten Masseanschluss |
JP5642146B2 (ja) * | 2012-12-19 | 2014-12-17 | オムロンオートモーティブエレクトロニクス株式会社 | 漏電検知装置 |
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