WO2009078167A1 - 蓄電装置 - Google Patents

蓄電装置 Download PDF

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Publication number
WO2009078167A1
WO2009078167A1 PCT/JP2008/003780 JP2008003780W WO2009078167A1 WO 2009078167 A1 WO2009078167 A1 WO 2009078167A1 JP 2008003780 W JP2008003780 W JP 2008003780W WO 2009078167 A1 WO2009078167 A1 WO 2009078167A1
Authority
WO
WIPO (PCT)
Prior art keywords
accumulation unit
converter
accumulation
detection circuit
voltage value
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.)
Ceased
Application number
PCT/JP2008/003780
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English (en)
French (fr)
Inventor
Syuji Oshida
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Corp
Original Assignee
Panasonic Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Panasonic Corp filed Critical Panasonic Corp
Priority to US12/808,277 priority Critical patent/US8194367B2/en
Priority to EP20080862663 priority patent/EP2221949A1/en
Publication of WO2009078167A1 publication Critical patent/WO2009078167A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/14—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
    • H02J7/1423—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle with multiple 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
    • B60L3/003—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to inverters
    • 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
    • B60L3/0046—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
    • 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
    • B60L3/0076—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to braking
    • 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
    • B60L7/00—Electrodynamic brake systems for vehicles in general
    • B60L7/10—Dynamic electric regenerative braking
    • B60L7/16—Dynamic electric regenerative braking for vehicles comprising converters between the power source and the motor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/80—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including monitoring or indicating arrangements
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/52—Drive Train control parameters related to converters
    • B60L2240/525—Temperature of converter or components thereof
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/52—Drive Train control parameters related to converters
    • B60L2240/527—Voltage
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/52—Drive Train control parameters related to converters
    • B60L2240/529—Current
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/547—Voltage
    • 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
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
    • G01R31/3828—Arrangements for monitoring battery or accumulator variables, e.g. SoC using current integration
    • 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
    • G01R31/40—Testing power supplies
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/14—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
    • H02J7/1469—Regulation of the charging current or voltage otherwise than by variation of field
    • H02J7/1492—Regulation of the charging current or voltage otherwise than by variation of field by means of controlling devices between the generator output and the battery
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using 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
    • Y02T10/70—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
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Dc-Dc Converters (AREA)
  • Protection Of Static Devices (AREA)

Abstract

少なくともＤＣ／ＤＣコンバータ(２１)と蓄電部(２７)のいずれかの異常を判断できる高信頼な蓄電装置(１１)を提供する。蓄電部(２７)に接続されたＤＣ／ＤＣコンバータ(２１)と、ＤＣ／ＤＣコンバータ(２１)を制御する制御回路(３５)とからなる。制御回路(３５)は蓄電部(２７)を充電、または放電している時に、入出力電圧検出回路(１９)、入出力電流検出回路(１７)、および蓄電部電圧検出回路(２９)により、それぞれ検出される入出力電圧値Ｖｉ、入出力電流値Ｉ、蓄電部電圧値Ｖｃから、ＤＣ／ＤＣコンバータ(２１)の効率Ｅｆｎを求める。温度センサ(３１)により検出される温度Ｔを用いて、効率Ｅｆｎが、入出力電圧値Ｖｉ、入出力電流値Ｉ、蓄電部電圧値Ｖｃ、および温度Ｔに応じた所定範囲(ＥｍｉｎからＥｍａｘ)を外れれば、少なくとも蓄電部(２７)、またはＤＣ／ＤＣコンバータ(２１)のいずれかが異常であると判断する。
PCT/JP2008/003780 2007-12-18 2008-12-16 蓄電装置 Ceased WO2009078167A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US12/808,277 US8194367B2 (en) 2007-12-18 2008-12-16 Accumulation device
EP20080862663 EP2221949A1 (en) 2007-12-18 2008-12-16 Accumulation device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007325564A JP5018448B2 (ja) 2007-12-18 2007-12-18 蓄電装置
JP2007-325564 2007-12-18

Publications (1)

Publication Number Publication Date
WO2009078167A1 true WO2009078167A1 (ja) 2009-06-25

Family

ID=40795289

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/003780 Ceased WO2009078167A1 (ja) 2007-12-18 2008-12-16 蓄電装置

Country Status (4)

Country Link
US (1) US8194367B2 (ja)
EP (1) EP2221949A1 (ja)
JP (1) JP5018448B2 (ja)
WO (1) WO2009078167A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2530477A4 (en) * 2010-06-04 2015-06-03 Zte Corp METHOD AND DEVICE FOR MONITORING THE ENERGY EFFICIENCY OF A DEVICE

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CN202997003U (zh) * 2009-12-04 2013-06-12 三洋电机株式会社 蓄电单元、发电系统及充放电系统
WO2013094396A1 (ja) * 2011-12-19 2013-06-27 パナソニック株式会社 充放電装置およびこれを用いた充放電システム
CN104054233B (zh) * 2012-01-16 2017-05-03 施耐德电气建筑有限公司 电容器充电电压的调节
KR101135623B1 (ko) * 2012-01-17 2012-04-17 제이에스제이텍(주) 전원 공급 장치의 소자 수명 연장 회로
FR2988672B1 (fr) * 2012-03-28 2016-02-05 Peugeot Citroen Automobiles Sa Procede de gestion electrique d'un vehicule automobile et vehicule automobile mettant en œuvre un tel procede
FR2988673B1 (fr) * 2012-03-28 2016-02-05 Peugeot Citroen Automobiles Sa Procede de gestion electrique d'un vehicule automobile et vehicule automobile mettant en œuvre un tel procede
JP5849888B2 (ja) * 2012-07-26 2016-02-03 トヨタ自動車株式会社 ハイブリッド車両
JP6136679B2 (ja) 2012-08-09 2017-05-31 株式会社Ｇｓユアサ 蓄電装置及び電力経路開閉装置
JP5964215B2 (ja) * 2012-11-15 2016-08-03 新電元工業株式会社 充放電制御回路、車両用電源装置及び故障判定方法
JP5964214B2 (ja) * 2012-11-15 2016-08-03 新電元工業株式会社 充放電制御回路、車両用電源装置及び故障判定方法
JP6075029B2 (ja) * 2012-11-26 2017-02-08 株式会社豊田自動織機 インバータの暖機制御装置
US9551760B2 (en) * 2013-03-14 2017-01-24 Hiq Solar, Inc. Reverse energy flow in solar and other power generation systems for theft detection, panel identification and diagnostic purposes
JP6272077B2 (ja) 2014-02-25 2018-01-31 三菱重工業株式会社 過給機及び船舶
CN103887866B (zh) * 2014-02-28 2016-02-03 成都宇能通能源开发有限公司 一种车载直流发电机最大输出功率跟踪隔离装置
JP6670998B2 (ja) * 2015-02-20 2020-03-25 パナソニックＩｐマネジメント株式会社 電力変換装置
JP6262686B2 (ja) * 2015-04-27 2018-01-17 ファナック株式会社 平滑コンデンサの寿命予測手段を有するモータ制御装置
FR3062752B1 (fr) * 2017-02-08 2020-05-01 Renault S.A.S Procede de gestion de l'etat de charge d'une batterie de traction d'un vehicule hybride.
CN109975721B (zh) * 2017-12-27 2022-05-20 中兴通讯股份有限公司 一种电源监测方法、系统和电源
CN112977145A (zh) * 2021-03-08 2021-06-18 北京公共交通控股（集团）有限公司 直流充电桩故障预警方法及装置
JP2025541975A (ja) * 2022-11-08 2025-12-24 深▲せん▼市正浩創新科技股▲ふん▼有限公司 電力変換回路の保護方法、電力変換装置及び記憶媒体

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JPS5843176A (ja) * 1981-09-08 1983-03-12 Toshiba Corp 電力変換装置の異常検出回路
JPH10289734A (ja) * 1996-09-05 1998-10-27 Nissan Motor Co Ltd 電池特性補正方法、および電池の残存容量推定方法
JP2000206215A (ja) 1999-01-20 2000-07-28 Honda Motor Co Ltd 車両用電源診断装置
JP2002369401A (ja) * 2001-06-01 2002-12-20 Origin Electric Co Ltd コンデンサの充電方法及びその充電装置
JP2003134801A (ja) * 2001-10-23 2003-05-09 Paloma Ind Ltd 熱発電制御装置
JP2006034006A (ja) * 2004-07-16 2006-02-02 Denso Corp Ｄｃ−ｄｃコンバータ

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JP4839783B2 (ja) * 2005-11-09 2011-12-21 パナソニック株式会社 電源システム

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5843176A (ja) * 1981-09-08 1983-03-12 Toshiba Corp 電力変換装置の異常検出回路
JPH10289734A (ja) * 1996-09-05 1998-10-27 Nissan Motor Co Ltd 電池特性補正方法、および電池の残存容量推定方法
JP2000206215A (ja) 1999-01-20 2000-07-28 Honda Motor Co Ltd 車両用電源診断装置
JP2002369401A (ja) * 2001-06-01 2002-12-20 Origin Electric Co Ltd コンデンサの充電方法及びその充電装置
JP2003134801A (ja) * 2001-10-23 2003-05-09 Paloma Ind Ltd 熱発電制御装置
JP2006034006A (ja) * 2004-07-16 2006-02-02 Denso Corp Ｄｃ−ｄｃコンバータ

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2530477A4 (en) * 2010-06-04 2015-06-03 Zte Corp METHOD AND DEVICE FOR MONITORING THE ENERGY EFFICIENCY OF A DEVICE
US9671470B2 (en) 2010-06-04 2017-06-06 Zte Corporation Method and device for monitoring energy efficiency performance of equipment

Also Published As

Publication number Publication date
US20100295375A1 (en) 2010-11-25
JP5018448B2 (ja) 2012-09-05
EP2221949A1 (en) 2010-08-25
US8194367B2 (en) 2012-06-05
JP2009148126A (ja) 2009-07-02

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