JP5942171B2 - 車載用充電装置 - Google Patents
車載用充電装置 Download PDFInfo
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- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
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- B60L53/20—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
- B60L53/22—Constructional details or arrangements of charging converters specially adapted for charging electric vehicles
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- B60L2210/00—Converter types
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- 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
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- B60L2240/00—Control parameters of input or output; Target parameters
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- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/547—Voltage
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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
- 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
- B60L2240/549—Current
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/10—The network having a local or delimited stationary reach
- H02J2310/12—The local stationary network supplying a household or a building
- H02J2310/14—The load or loads being home appliances
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/40—The network being an on-board power network, i.e. within a vehicle
- H02J2310/48—The network being an on-board power network, i.e. within a vehicle for electric vehicles [EV] or hybrid vehicles [HEV]
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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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
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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
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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
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Description
<充電システムの構成>
図1は、本発明の実施の形態に係る充電システム100の構成を示す図である。
車載用充電装置170は、電圧測定部111と、電流測定部112と、制御部113と、充電器114とを有する。
下限閾値Vkminは、ブレーカ盤106のA点の電圧Vkの下限とする値であり、蓄電池115の充電開始後において電気機器103の使用を開始した際に、電源供給回路180に過電流が流れないように入力電流を制御するために、一次近似直線と共に用いられるパラメータである。入力電圧Vcが下限閾値以下になった場合に入力電流Icを低下させる制御が、また入力電圧Vcが下限閾値以上である場合に入力電流Icを増加させる制御が、それぞれ行われる。この電流制御と一次近似直線との関係については、後述する。
Vc=Vk−Zs*Ic (1)
ただし、Vcは、充電器114の入力電圧
Vkは、一次近似直線の切片
Zsは、電源101の出力インピーダンスと、電源101と充電器114との間の配線のインピーダンスとの合成インピーダンス
Icは、充電器114の入力電流
図2は、下限閾値を決定する第1の方法を示す図である。
図3は、下限閾値を決定する第2の方法を示す図である。
図4は、下限閾値を決定する第3の方法を示す図である。
図5は、下限閾値を決定する第4の方法を示す図である。
図6は、下限閾値を決定する第5の方法を示す図である。
図7は、下限閾値を決定する第6の方法の一例を示す図である。図8は、下限閾値を決定する第6の方法の他の一例を示す図である。
図9は、電圧測定部111で測定した入力電圧の変化量を求める方法を示す図である。図10は、下限閾値を決定する第7の方法を示す図である。
車載用充電装置170の充電中に、家屋150側の電気機器103の電力使用量が増加し、充電器114への入力電圧が低下した場合の制御は、以下のように行われる。
電気機器103が停止している状態において、車載用充電装置170が電源101を用いて蓄電池115の充電を開始した後に、電気機器103が電源101から電源の供給を受けて動作を開始する場合を例に、図12を用いて説明する。
ΔVc=−ZP*ΔId (2)
ただし、Idは、電気機器103に流れる電流
ZPは、電源101の出力インピーダンス
Vc=Vp−ZP(Ic+Id)−ZL*Ic (3)
ただし、Vpは、電源101の電圧
Icは、ブレーカ盤106のA点(図1参照)から充電器114に流れる電流
Idは、電気機器103に流れる電流
ZPは、電源101の出力インピーダンス
ZLは、電源101と充電器114との間の配線のインピーダンス
Vc=(Vp−ZP*Id)−ZS*Ic (4)
ただし、Zsは、ZPとZLとの合成インピーダンス
Vk=Vp−ZP*Id (5)
ただし、Vpは、電源101の電圧
Idは、電気機器103に流れる電流
ZPは、電源101の出力インピーダンス
Vc1=Vk−ZS*Ic1 (6)
Vc2=Vk−ZS*Ic2 (7)
ΔVc=−ZS*ΔIc (8)
ΔIc=−ΔVc/ZS (9)
ΔId=−(ZS/ZP)*ΔIc (10)
図14は、入力電圧と入力電流との関係を一次近似直線#1201として求める方法における入力電圧と入力電流との関係を示す図である。
このように、本実施の形態によれば、電源の出力電圧の変動幅を考慮して車載用充電器の入力電流を制御することにより、不安定な電源を用いて充電する場合であっても、充電できなくなることを防ぐことができるとともに、家屋等で他の電気機器の使用ができない状態を防ぐことができる。
上記の実施の形態において、充電器114の入力電流を一段階で低減する制御を行ったが、本発明はこれに限らず、複数段階に分けて低減するように制御してもよい。
101 電源
102 出力インピーダンス
103 電気機器
104 インピーダンス
105 ソケット
106 ブレーカ盤
111 電圧測定部
112 電流測定部
113 制御部
114 充電器
115 蓄電池
150 家屋
160 車両
170 車載用充電装置
180 電源供給回路
Claims (11)
- 車両の外部にある電源から前記車両に搭載された蓄電池を充電する車載用充電装置であって、
前記外部にある電源と接続し、前記蓄電池を充電するための入力電流が可変である充電器と、
前記充電器の入力電流と前記入力電流に対応する入力電圧とを測定する測定部と、
前記充電器の入力電流を複数の値に変化させ、それぞれ変化させた際の前記入力電流と前記測定部により測定した前記入力電圧との対応関係に従って、前記入力電圧の適正範囲の下限閾値を決定するとともに、前記対応関係及び前記下限閾値に従って、前記入力電流を制御する制御部と、
を具備する車載用充電装置。 - 前記制御部は、前記対応関係を一次近似直線として求めるとともに前記下限閾値を前記一次近似直線の切片に基づいて決定し、前記一次近似直線及び前記下限閾値に従って、前記入力電流を制御する、
請求項1記載の車載用充電装置。 - 前記制御部は、充電開始後に前記入力電圧が前記一次近似直線と同一の傾きでかつ前記下限閾値を通る制御用直線を求め、前記制御用直線上において低下前の前記入力電圧と略同一の入力電圧となる入力電流まで前記入力電流を低下させる制御を行い、充電開始後に前記入力電圧が上昇した場合には、前記一次近似直線と同一の傾きでかつ上昇前の前記入力電圧と略同一の入力電圧となる入力電流まで前記入力電流を上昇させる制御を行う、
請求項2記載の車載用充電装置。 - 前記制御部は、複数回に渡って測定した前記一次近似直線の切片の測定時点までの最小値を前記下限閾値とする、
請求項2記載の車載用充電装置。 - 前記制御部は、所定回数に渡って測定した前記一次近似直線の切片の最小値を前記所定回数毎に求め、求めた各々の前記最小値の平均値を求めるとともに、前記平均値よりも所定の偏差だけ小さい値を前記下限閾値とする、
請求項2記載の車載用充電装置。 - 前記制御部は、複数回に渡って測定した前記一次近似直線の切片の平均値よりも所定の偏差だけ小さい値を前記下限閾値とする、
請求項2記載の車載用充電装置。 - 前記制御部は、複数回に渡って測定した前記一次近似直線の切片の変化量を求めるとともに、前記変化量の平均値を暫定閾値とし、前記下限閾値より前記暫定閾値だけ大きい値を新たな前記下限閾値とする、
請求項2記載の車載用充電装置。 - 前記制御部は、
複数回に渡って測定した前記一次近似直線の切片の測定時点までの最小値、
所定回数に渡って測定した前記一次近似直線の切片の最小値を前記所定回数毎に求め、求めた各々の前記最小値の平均値を求めるとともに、前記平均値よりも所定の偏差だけ小さい値、
および複数回に渡って測定した前記一次近似直線の切片の平均値よりも所定の偏差だけ小さい値、
の少なくとも2つの値を算出し、前記2つの値のうちいずれか大きい方の値を前記下限閾値とする、
請求項2記載の車載用充電装置。 - 前記制御部は、前記対応関係を求める過程において前記外部にある電源からの前記蓄電池に対する電源の供給が遮断された場合には、次回に前記対応関係を求める際には、前記遮断の前に設定した入力電流のうちの最大値以下の入力電流により前記対応関係を求める
請求項1記載の車載用充電装置。 - 前記制御部は、充電開始前、および、充電開始後の少なくとも一方において、前記対応関係に従って前記下限閾値を決定する、
請求項1記載の車載用充電装置。 - 前記制御部は、充電開始後、前記入力電圧が変化した際に前記対応関係及び前記下限閾値に従って前記入力電流を制御する、
請求項1記載の車載用充電装置。
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WO2015195924A1 (en) | 2014-06-20 | 2015-12-23 | Carbon3D, Inc. | Three-dimensional printing with reciprocal feeding of polymerizable liquid |
US10661501B2 (en) | 2014-06-20 | 2020-05-26 | Carbon, Inc. | Three-dimensional printing method using increased light intensity and apparatus therefor |
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JPH05137276A (ja) * | 1991-11-12 | 1993-06-01 | Oki Electric Ind Co Ltd | 電子機器用充電装置 |
JP2003092829A (ja) * | 2001-09-18 | 2003-03-28 | Hitachi Ltd | 電気機器システム |
JP2012039685A (ja) * | 2010-08-04 | 2012-02-23 | Hitachi Ltd | 蓄電池制御装置,充電スタンド及び蓄電池制御方法 |
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US8736224B2 (en) * | 2007-03-09 | 2014-05-27 | Ford Global Technologies, Llc | Charging a battery using a circuit having shared loads |
WO2010137144A1 (ja) * | 2009-05-28 | 2010-12-02 | トヨタ自動車株式会社 | 充電システム |
US20120153895A1 (en) * | 2010-12-20 | 2012-06-21 | Ford Global Technologies, Llc | System And Method For Controlling AC Line Current And Power During Vehicle Battery Charging |
CN103392133A (zh) * | 2011-03-07 | 2013-11-13 | 株式会社日立制作所 | 电池状态推定方法和电池管理*** |
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JPH05137276A (ja) * | 1991-11-12 | 1993-06-01 | Oki Electric Ind Co Ltd | 電子機器用充電装置 |
JP2003092829A (ja) * | 2001-09-18 | 2003-03-28 | Hitachi Ltd | 電気機器システム |
JP2012039685A (ja) * | 2010-08-04 | 2012-02-23 | Hitachi Ltd | 蓄電池制御装置,充電スタンド及び蓄電池制御方法 |
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