JP2011058177A - 建設機械の漏電検出装置 - Google Patents
建設機械の漏電検出装置 Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/02—Providing protection against overload without automatic interruption of supply
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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
- 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
- B60L3/0061—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electrical machines
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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
- 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
- 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
- B60L3/04—Cutting off the power supply under fault conditions
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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
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/61—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
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- 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
-
- 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
- B60L2250/00—Driver interactions
- B60L2250/10—Driver interactions by alarm
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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
- B60L2270/00—Problem solutions or means not otherwise provided for
- B60L2270/10—Emission reduction
- B60L2270/14—Emission reduction of noise
- B60L2270/145—Structure borne vibrations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/40—Special vehicles
- B60Y2200/41—Construction vehicles, e.g. graders, excavators
- B60Y2200/412—Excavators
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- 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
- G01R31/34—Testing dynamo-electric machines
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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
- Y02T10/62—Hybrid vehicles
-
- 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
- Y02T10/64—Electric machine technologies in electromobility
-
- 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
-
- 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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
- Transportation (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Operation Control Of Excavators (AREA)
- Inverter Devices (AREA)
- Protection Of Static Devices (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
【解決手段】電源投入操作があったこと、電動機が停止していること、及び電源投入後に漏電有無の判定がまだ1度も行われていないことを条件として、強制的にインバータを作動させて電動機に通電し、漏電検出を行う。具体的には、漏電検出用信号出力手段19により、バッテリ8に接続された直流母線15,15と機械のボディとの間に漏電検出用の電圧信号を加えるとともに、その信号を信号検出手段20によって検出し、検出された電圧信号の波高値に基づいて漏電状態の有無を判定する。
【選択図】図2
Description
(A) 上記バッテリを上記インバータに接続する電源投入操作が行われたこと、
(B) 上記電動機が停止状態であること、
(C) 漏電の有無についての判定がまだ1度も行われていないこと
の条件を満足するときに、上記操作手段の操作とは無関係に上記インバータを作動させて電動機通電状態とし、この状態で漏電の有無を判定するように構成されたものである。
(A) バッテリ8をインバータ18に接続する電源投入操作が行われたこと、
(B) 旋回電動機10が停止状態であること、
(C) 漏電の有無についての判定がまだ1度も行われていないこと
の条件を満足するときに、旋回電動機コントローラ24を通じてインバータ9を作動させて電動機通電状態とし、この状態で漏電の有無の判定を行う。
ステップS1でレバー操作があったか否かを判断し、操作無し(NO)の場合は漏電検出フローに、操作有りの場合は漏電検出休止フローにそれぞれ入る。
ステップS1でYES(レバー操作が有った)となると、漏電検出を中断するべく、まず、ステップS14で、カウント開始から中断までの低波高値時間のカウント値(検出カウント値1)がしきい値である検出カウント設定値1よりも大きいか否かが判断され、NO(小さい)の場合はステップS15でこのカウント値がクリアされ、YES(大きい)の場合はステップ16でカウント値の保存(検出カウント値1を検出カウント値2に加算)が行われる。
9 インバータ
10 旋回用電動機
10a 三相交流電線
13 操作手段としての旋回操作レバー
15,15 電動機駆動回路の直流母線
19 漏電検出用信号出力手段
20 信号検出手段
21 漏電状態判定手段
23 電動機作動検出手段としてのレバー操作検出手段
24 インバータを通断電制御する旋回電動機コントローラ
Claims (4)
- バッテリによりインバータを介して電動機を駆動する電動機駆動回路を備え、上記インバータは、操作手段が操作されたときに上記電動機に通電して電動機を駆動し、操作手段が操作されないときは上記電動機への通電を遮断するように構成された建設機械の漏電検出装置において、上記電動機駆動回路と機械のボディとの間に漏電検出用の電圧信号を加える信号出力手段と、この信号出力手段による電圧信号を検出する信号検出手段と、上記電動機が作動状態か停止状態かを検出する電動機作動検出手段と、上記信号検出手段によって検出された信号に基づいて漏電の有無を判定する判定手段とを具備し、この判定手段は、
(A) 上記バッテリを上記インバータに接続する電源投入操作が行われたこと、
(B) 上記電動機が停止状態であること、
(C) 漏電の有無についての判定がまだ1度も行われていないこと
の条件を満足するときに、上記操作手段の操作とは無関係に上記インバータを作動させて電動機通電状態とし、この状態で漏電の有無を判定するように構成されたことを特徴とする建設機械の漏電検出装置。 - 上記判定手段は、上記信号検出手段によって検出される電圧信号の波高値が設定値以下である低波高値時間、及び設定値を超える高波高値時間をそれぞれカウントし、上記低波高値時間のカウント値が設定値以上の場合に漏電状態であると判定し、上記高波高値時間のカウント値が設定値以上の場合に漏電状態でないと判定するように構成されたことを特徴とする請求項1記載の建設機械の漏電検出装置。
- 上記判定手段は、漏電の有無の判定中、上記電動機作動検出手段によって上記電動機の作動が検出されたときに、判定を休止するように構成されたことを特徴とする請求項1または2記載の建設機械の漏電検出装置。
- 上記判定手段は、下部走行体上に搭載された上部旋回体を旋回駆動する旋回電動機の駆動回路について漏電の有無を判定するように構成されたことを特徴とする請求項1〜3のいずれか1項に記載の建設機械の漏電検出装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009206046A JP5365432B2 (ja) | 2009-09-07 | 2009-09-07 | 建設機械の漏電検出装置 |
US12/859,876 US8581596B2 (en) | 2009-09-07 | 2010-08-20 | Current leakage detector of construction machine |
EP10173883A EP2309637B1 (en) | 2009-09-07 | 2010-08-24 | Current leakage detector of construction machine |
CN201010275323.3A CN102012472B (zh) | 2009-09-07 | 2010-09-06 | 建筑机械的漏电检测装置 |
Applications Claiming Priority (1)
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JP2009206046A JP5365432B2 (ja) | 2009-09-07 | 2009-09-07 | 建設機械の漏電検出装置 |
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JP2011058177A true JP2011058177A (ja) | 2011-03-24 |
JP5365432B2 JP5365432B2 (ja) | 2013-12-11 |
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JP2009206046A Active JP5365432B2 (ja) | 2009-09-07 | 2009-09-07 | 建設機械の漏電検出装置 |
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US (1) | US8581596B2 (ja) |
EP (1) | EP2309637B1 (ja) |
JP (1) | JP5365432B2 (ja) |
CN (1) | CN102012472B (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2012017561A (ja) * | 2010-07-06 | 2012-01-26 | Hitachi Constr Mach Co Ltd | 電動式建設機械 |
WO2015141241A1 (ja) * | 2014-03-19 | 2015-09-24 | 株式会社小松製作所 | 車載用電力供給システムの漏電検出装置及び油圧ショベル |
JP2015175092A (ja) * | 2014-03-12 | 2015-10-05 | 住友重機械工業株式会社 | 電動旋回型建設機械 |
JP2017001869A (ja) * | 2015-06-15 | 2017-01-05 | コベルコ建機株式会社 | マグネット作業機械 |
JP2019107927A (ja) * | 2017-12-15 | 2019-07-04 | 日立建機株式会社 | 建設機械 |
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JP5913575B2 (ja) * | 2011-05-27 | 2016-04-27 | リナック エー/エス | 発火検知手段を備えたリニアアクチュエータシステム |
JP5970898B2 (ja) * | 2012-03-26 | 2016-08-17 | コベルコ建機株式会社 | 動力伝達装置及びこれを備えたハイブリッド建設機械 |
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JP6051857B2 (ja) * | 2012-12-28 | 2016-12-27 | コベルコ建機株式会社 | 建設機械 |
DE102017202191A1 (de) * | 2017-02-13 | 2018-08-16 | Robert Bosch Gmbh | Schaltung und Verfahren zum Erkennen eines schleichenden Kurzschlusses bei Brückenschaltungen |
KR102062694B1 (ko) | 2017-08-17 | 2020-01-06 | 국방과학연구소 | 음성 복호화 시스템의 후처리 장치 및 방법 |
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- 2009-09-07 JP JP2009206046A patent/JP5365432B2/ja active Active
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2010
- 2010-08-20 US US12/859,876 patent/US8581596B2/en active Active
- 2010-08-24 EP EP10173883A patent/EP2309637B1/en active Active
- 2010-09-06 CN CN201010275323.3A patent/CN102012472B/zh active Active
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JP2003194870A (ja) * | 2001-12-27 | 2003-07-09 | Panasonic Ev Energy Co Ltd | 漏電検出装置 |
WO2008016179A1 (fr) * | 2006-08-04 | 2008-02-07 | Toyota Jidosha Kabushiki Kaisha | Système de détermination de résistance d'isolement, appareil de détermination de résistance d'isolement et procédé de détermination de résistance d'isolement |
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JP2012017561A (ja) * | 2010-07-06 | 2012-01-26 | Hitachi Constr Mach Co Ltd | 電動式建設機械 |
JP2015175092A (ja) * | 2014-03-12 | 2015-10-05 | 住友重機械工業株式会社 | 電動旋回型建設機械 |
WO2015141241A1 (ja) * | 2014-03-19 | 2015-09-24 | 株式会社小松製作所 | 車載用電力供給システムの漏電検出装置及び油圧ショベル |
JP2015180162A (ja) * | 2014-03-19 | 2015-10-08 | 株式会社小松製作所 | 車載用電力供給システムの漏電検出装置及び油圧ショベル |
JP2017001869A (ja) * | 2015-06-15 | 2017-01-05 | コベルコ建機株式会社 | マグネット作業機械 |
JP2019107927A (ja) * | 2017-12-15 | 2019-07-04 | 日立建機株式会社 | 建設機械 |
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JP5365432B2 (ja) | 2013-12-11 |
EP2309637B1 (en) | 2012-12-26 |
CN102012472B (zh) | 2014-04-02 |
CN102012472A (zh) | 2011-04-13 |
US8581596B2 (en) | 2013-11-12 |
US20110057596A1 (en) | 2011-03-10 |
EP2309637A3 (en) | 2012-02-15 |
EP2309637A2 (en) | 2011-04-13 |
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