JP2012060813A - Charging control method, vehicle, and charging stand - Google Patents
Charging control method, vehicle, and charging stand Download PDFInfo
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- 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
- H01M10/44—Methods for charging or discharging
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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
- 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
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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
- 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
- B60L53/60—Monitoring or controlling charging stations
- B60L53/66—Data transfer between charging stations and vehicles
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/0071—Regulation of charging or discharging current or voltage with a programmable schedule
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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
- B60L2250/00—Driver interactions
- B60L2250/14—Driver interactions by input of vehicle departure time
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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
- 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
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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
-
- 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
-
- 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
-
- 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
Description
本発明は、家庭用の電源や充電スタンドから供給される電力により車両に搭載される電池をタイマ充電する際のタイマ充電制御方法に関する。 The present invention relates to a timer charging control method for timer charging a battery mounted on a vehicle using electric power supplied from a household power supply or a charging stand.
家庭用の電源や充電スタンドから供給される電力により車両に搭載される電池を充電する際、通常では、家庭用の電源に接続された充電ケーブルが車両に備えられる充電用のインレットに接続されたときに、又は、充電スタンドに備えられる充電用のケーブルが車両に備えられる充電用のインレットに接続されたときに充電が開始される（例えば、特許文献１参照）。 When charging a battery mounted on a vehicle with power supplied from a household power source or charging stand, the charging cable connected to the household power source is usually connected to a charging inlet provided on the vehicle. Sometimes, charging starts when a charging cable provided in the charging stand is connected to a charging inlet provided in the vehicle (see, for example, Patent Document 1).
また、インレットに充電用ケーブルを接続してから所定時間経過後に充電を開始することが可能なタイマ充電と呼ばれるタイマ充電制御方法があり、昼間に比べて電気料金が安い夜間に充電を行うことができる。一般に、このようなタイマ充電制御方法は、ユーザにより設定される充電終了時刻ｔ２と、電池を満充電するために必要な残りの電力量と、電池に供給される最大電力とから充電開始時刻ｔ１が計算され、その充電開始時刻ｔ１になると充電が開始される。 In addition, there is a timer charging control method called timer charging that can start charging after a predetermined time has elapsed after connecting the charging cable to the inlet, and charging can be performed at night when the electricity bill is cheaper than in the daytime. it can. In general, such a timer charging control method is based on the charging end time t2 set by the user, the remaining power amount necessary for fully charging the battery, and the maximum power supplied to the battery, and the charging start time t1. Is calculated, and charging starts at the charging start time t1.
しかしながら、タイマ充電を行う際、何らかの要因により充電中に供給電力が小さくなってしまうと、例えば、図５に示すように、充電の途中から終了までの期間、又は、充電の最初から終了までの期間、電源から車両に搭載の充電器に供給される電流（電圧一定）が最大電流（１２Ａ）よりも少なくなってしまうと、充電終了時刻ｔ２に電池が満充電にならず、車両の走行距離が短くなり、利便性が損なわれてしまう。 However, when performing timer charging, if the supplied power becomes small during charging due to some factor, for example, as shown in FIG. 5, the period from the middle to the end of charging, or from the beginning to the end of charging. If the current (constant voltage) supplied from the power source to the charger mounted on the vehicle is less than the maximum current (12A) during the period, the battery is not fully charged at the charging end time t2, and the vehicle travel distance Becomes shorter and the convenience is impaired.
本発明では、車両に搭載される電池をタイマ充電する際、充電中に電池に供給される電力が小さくなっても、充電終了時刻には満充電にすることができるタイマ充電制御方法、車両、及び充電スタンドを提供することを目的とする。 In the present invention, when charging a battery mounted on a vehicle with a timer, even if the power supplied to the battery is reduced during charging, the timer charging control method, vehicle, And to provide a charging station.
本発明のタイマ充電制御方法は、車両に搭載される電池の充電制御処理を実行するコンピュータのタイマ充電制御方法であって、充電開始時刻から充電終了時刻までに前記電池を満充電にする際の充電タイムスケジュールを示す複数の充電パターンを予め記憶手段に記憶させ、前記充電開始時刻よりも前においてユーザが、前記充電終了時刻及び前記複数の充電パターンのうちの１つの充電パターンを入力手段で入力すると、前記電池の満充電時の電力量、前記電池の現在の電力量、及び車両に搭載の充電器に供給可能な電圧と最大電流を取得し、前記電池の満充電時の電力量から前記電池の現在の電力量を減算した残電力量を計算し、前記入力手段により入力される前記充電終了時刻及び前記充電パターンと前記電圧と前記最大電流と前記残電力量とに基づいて前記充電開始時刻を計算し、前記充電開始時刻になると前記電池の充電を開始する。 The timer charge control method of the present invention is a timer charge control method for a computer that executes a charge control process for a battery mounted on a vehicle, and is used when the battery is fully charged from a charge start time to a charge end time. A plurality of charging patterns indicating a charging time schedule are stored in advance in the storage means, and the user inputs the charging end time and one of the plurality of charging patterns with the input means before the charging start time. Then, the amount of power when the battery is fully charged, the current amount of power of the battery, and the voltage and maximum current that can be supplied to the charger mounted on the vehicle are obtained, and the amount of power when the battery is fully charged is obtained. The remaining power amount is calculated by subtracting the current power amount of the battery, the charging end time and the charging pattern, the voltage, the maximum current, and the Said charging start time is calculated based on the amount of power to start charging of said battery to become the charging start time.
これにより、車両に搭載される電池をタイマ充電する際、充電中に電池に供給される電力が小さくなっても、充電終了時刻には満充電にすることができる。
また、本発明の車両は、充電開始時刻から充電終了時刻までに車両に搭載される電池を満充電にする際の充電タイムスケジュールを示す複数の充電パターンが記憶される記憶手段と、前記充電開始時刻よりも前においてユーザが、前記充電終了時刻及び前記複数の充電パターンのうちの１つの充電パターンを入力する入力手段と、前記電池の満充電時の電力量及び前記電池の現在の電力量を取得する電池状態取得手段と、車両に搭載の充電器に供給可能な電圧と最大電流を取得する電力取得手段と、前記電池状態取得手段により取得される前記電池の満充電時の電力量から前記電池の現在の電力量を減算して残電力量を計算する残電力量計算手段と、前記入力手段により入力される前記充電終了時刻及び前記充電パターンと、前記電力取得手段により取得される前記電圧と前記最大電流と、前記残電力量計算手段により計算される残電力量とに基づいて、前記充電開始時刻を計算する充電開始時刻計算手段と、前記充電開始時刻になると、前記電池の充電を開始する充電制御手段とを備える。
As a result, when the battery mounted on the vehicle is charged by the timer, even when the power supplied to the battery during charging becomes small, the battery can be fully charged at the charging end time.
Further, the vehicle of the present invention includes a storage unit that stores a plurality of charging patterns indicating a charging time schedule when a battery mounted on the vehicle is fully charged from a charging start time to a charging end time, and the charging start Prior to the time, the user inputs the charging end time and one of the plurality of charging patterns, the input means, the amount of power when the battery is fully charged and the current amount of energy of the battery The battery status acquisition means to acquire, the power acquisition means to acquire the voltage and maximum current that can be supplied to the charger mounted on the vehicle, and the amount of power at the time of full charge of the battery acquired by the battery status acquisition means A remaining power amount calculating means for subtracting the current power amount of the battery to calculate a remaining power amount; the charging end time and the charging pattern input by the input means; Charging start time calculating means for calculating the charging start time based on the voltage, the maximum current obtained by the above, and the remaining power amount calculated by the remaining power amount calculating means; And charging control means for starting charging of the battery.
また、本発明の充電スタンドは、充電開始時刻から充電終了時刻までに車両に搭載される電池を満充電にする際の充電タイムスケジュールを示す複数の充電パターンが記憶される記憶手段と、前記充電開始時刻よりも前においてユーザが、前記充電終了時刻及び前記複数の充電パターンのうちの１つの充電パターンを入力する入力手段と、前記電池の満充電時の電力量及び前記電池の現在の電力量を取得する電池状態取得手段と、前記車両に搭載の充電器に供給可能な電圧と最大電流を取得する電力取得手段と、前記電池状態取得手段により取得される前記電池の満充電時の電力量から前記電池の現在の電力量を減算して残電力量を計算する残電力量計算手段と、前記入力手段により入力される前記充電終了時刻及び前記充電パターンと、前記電力取得手段により取得される前記電圧と前記最大電流と、前記残電力量計算手段により計算される残電力量とに基づいて、前記充電開始時刻を計算する充電開始時刻計算手段と、前記充電開始時刻になると、前記電池の充電を開始する充電制御手段とを備える。 The charging station of the present invention includes a storage unit that stores a plurality of charging patterns indicating a charging time schedule when a battery mounted on a vehicle is fully charged from a charging start time to a charging end time, and the charging The input means for the user to input the charging end time and one of the plurality of charging patterns before the start time, the amount of power when the battery is fully charged, and the current amount of power of the battery A battery state acquisition means for acquiring the power, a power acquisition means for acquiring a voltage and a maximum current that can be supplied to a charger mounted on the vehicle, and an amount of power when the battery is fully charged acquired by the battery state acquisition means A remaining power amount calculating means for calculating a remaining power amount by subtracting the current power amount of the battery from the charging end time and the charging pattern inputted by the input means, Charging start time calculating means for calculating the charging start time based on the voltage acquired by the power acquiring means, the maximum current, and the remaining power amount calculated by the remaining power amount calculating means; and the charging start And charging control means for starting charging of the battery at the time.
また、前記複数の充電パターンは、前記充電開始時刻から前記充電終了時刻まで一定の電流で、かつ、前記最大電流よりも小さい電流で前記電池を充電する第１の充電パターン、前記電池が満充電の直前になると充電を中断し、前記充電終了時刻の直前になると充電を再開する第２の充電パターン、及び、前記電池が満充電の直前になると、前記充電終了時刻になるまで前記最大電流よりも小さい電流で前記電池を充電する第３の充電パターンの３つの充電パターンとしてもよい。 The plurality of charge patterns may include a first charge pattern for charging the battery with a constant current from the charge start time to the charge end time and a current smaller than the maximum current, and the battery is fully charged. The second charging pattern for interrupting charging immediately before the charging end time and resuming charging immediately before the charging end time, and when the battery is just before full charging, from the maximum current until the charging end time is reached. Alternatively, three charging patterns of a third charging pattern for charging the battery with a small current may be used.
本発明によれば、車両に搭載される電池をタイマ充電する際、充電中に電池に供給される電力が小さくなっても充電終了時刻には満充電にすることができる。 According to the present invention, when a battery mounted on a vehicle is charged by a timer, even when the power supplied to the battery is reduced during charging, the battery can be fully charged at the charging end time.
図１は、本発明の実施形態の車両を示す図である。
図１に示す車両１は、インレット２と、充電器３と、リレー４と、電池５と、スイッチ６（入力手段）と、表示部７と、記憶部８と、マイクロコンピュータ（コンピュータ）９（例えば、ＥＣＵ（Ｅｌｅｃｔｒｏｎｉｃ Ｃｏｎｔｒｏｌ Ｕｎｉｔ）など）とを備えて構成される。なお、記憶部８は、マイクロコンピュータ９内に設けられてもよい。また、特許請求の範囲における入力手段は、タッチパネルディスプレイにより構成される表示部７としてもよい。
FIG. 1 is a diagram showing a vehicle according to an embodiment of the present invention.
A vehicle 1 shown in FIG. 1 includes an inlet 2, a charger 3, a relay 4, a battery 5, a switch 6 (input means), a display unit 7, a storage unit 8, and a microcomputer (computer) 9 ( For example, an ECU (Electronic Control Unit) is included. The storage unit 8 may be provided in the microcomputer 9. Moreover, the input means in a claim is good also as the display part 7 comprised by a touchscreen display.
マイクロコンピュータ９は、インレット２に電源１０（例えば、家庭用の電源）が接続されるとすぐに充電を開始させる。しかし電源１０がインレット２に接続される前にユーザがスイッチ６や表示部７のタッチパネルによって充電指示を入力しその後に電源１０が接続されると、マイクロコンピュータ９は入力された充電指示に基づいてタイマ充電による所定時間経過後に充電を開始する。また、マイクロコンピュータ９は、充電を開始するとき、リレー４をオンすることにより、充電器３から電池５へ電力を供給させる。また、マイクロコンピュータ９は、充電を終了するとき、リレー４をオフすることにより、充電器３から電池５への電力供給を停止させる。 The microcomputer 9 starts charging as soon as a power source 10 (for example, a household power source) is connected to the inlet 2. However, if the user inputs a charging instruction using the switch 6 or the touch panel of the display unit 7 before the power supply 10 is connected to the inlet 2 and then the power supply 10 is connected, the microcomputer 9 is based on the input charging instruction. Charging is started after a predetermined time has elapsed due to timer charging. In addition, when starting charging, the microcomputer 9 turns on the relay 4 to supply power from the charger 3 to the battery 5. Moreover, the microcomputer 9 stops the power supply from the charger 3 to the battery 5 by turning off the relay 4 when the charging is finished.
図２は、タイマ充電を行う際のマイクロコンピュータ９の動作を説明するためのフローチャートである。
まず、マイクロコンピュータ９は、スイッチ６や表示部７のタッチパネルが操作されてユーザにより設定される充電終了時刻ｔ２が入力されたか否かを判断する（Ｓ１）。
FIG. 2 is a flowchart for explaining the operation of the microcomputer 9 when performing timer charging.
First, the microcomputer 9 determines whether or not the charging end time t2 set by the user is input by operating the switch 6 or the touch panel of the display unit 7 (S1).
充電終了時刻ｔ２が入力されたと判断すると（Ｓ１がＹｅｓ）、マイクロコンピュータ９は、その入力された充電終了時刻ｔ２を内部メモリなどに格納する（Ｓ２）。このとき、マイクロコンピュータ９が省電力モードで動作していた場合、ユーザによるスイッチ６や表示部７のタッチパネルの操作により起動してＳ１、Ｓ２の処理が行われるように構成してもよい。 If it is determined that the charging end time t2 has been input (S1 is Yes), the microcomputer 9 stores the input charging end time t2 in an internal memory or the like (S2). At this time, when the microcomputer 9 is operating in the power saving mode, the microcomputer 9 may be activated by the operation of the switch 6 or the touch panel of the display unit 7 to perform the processes of S1 and S2.
次に、マイクロコンピュータ９は、スイッチ６や表示部７のタッチパネルが操作されることにより、予め記憶部８に記憶されている複数種類の充電パターンのうちの１つの充電パターンがユーザにより選択され入力されたか否かを判断する（Ｓ３）。 Next, when the switch 6 or the touch panel of the display unit 7 is operated, the microcomputer 9 selects and inputs one charging pattern among a plurality of types of charging patterns stored in the storage unit 8 in advance. It is determined whether or not it has been done (S3).
充電パターンが入力されたと判断すると（Ｓ３がＹｅｓ）、マイクロコンピュータ９は、その入力された充電パターンを内部メモリなどに格納する（Ｓ４）。
ここで、図３は、記憶部８に格納されている複数種類の充電パターンの一例を示す図である。なお、電源１０から充電器３を経由して電池５に供給される電力の電圧を一定とし、図３には電源１０から充電器３に流れる電流を示している。
If it is determined that the charging pattern has been input (S3 is Yes), the microcomputer 9 stores the input charging pattern in an internal memory or the like (S4).
Here, FIG. 3 is a diagram illustrating an example of a plurality of types of charging patterns stored in the storage unit 8. Note that the voltage of power supplied from the power source 10 to the battery 5 via the charger 3 is constant, and FIG. 3 shows the current flowing from the power source 10 to the charger 3.
例えば、図３に示すように、記憶部８には、充電開始時刻ｔ０から充電終了時刻ｔ２まで一定の電流で、かつ、電源１０の最大電流（電流１２Ａ）よりも小さい電流（電流６Ａ）で充電器３を経由して電池５を充電する充電タイムスケジュールを示す充電パターンＡ（第１の充電パターン）、電池５が満充電の直前になると充電を中断し、充電終了時刻ｔ２の直前になると低電流で充電を再開する充電タイムスケジュールを示す充電パターンＢ（第２の充電パターン）、及び、電池５が満充電の直前になると、充電終了時刻ｔ２になるまで電池５の最大電流（電流１２Ａ）よりも小さい電流（電流６Ａよりも少ない低電流）で充電器３を経由して電池５を充電する充電タイムスケジュールを示す充電パターンＣ（第３の充電パターン）の３つの充電パターンが記憶されているものとする。なお、Ｓ３においてユーザにより充電パターンが選択されない場合、予め決められた充電パターンをマイクロコンピュータ９が選択するように構成してもよい。また、Ｓ３で選択される充電パターンは、ユーザによりカスタマイズすることができるように構成してもよい。 For example, as shown in FIG. 3, the storage unit 8 has a constant current from the charging start time t0 to the charging end time t2 and a current (current 6A) smaller than the maximum current (current 12A) of the power supply 10. Charging pattern A (first charging pattern) indicating a charging time schedule for charging the battery 5 via the charger 3, charging is interrupted immediately before the battery 5 is fully charged, and immediately before the charging end time t2. When charging pattern B (second charging pattern) indicating a charging time schedule for restarting charging at a low current and when battery 5 is just before full charging, the maximum current (current 12A) of battery 5 until charging end time t2 is reached. 3) charging pattern C (third charging pattern) indicating a charging time schedule for charging the battery 5 via the charger 3 with a smaller current (a lower current than the current 6A). It shall charge pattern is stored. In addition, when a charge pattern is not selected by the user in S3, you may comprise so that the microcomputer 9 may select a predetermined charge pattern. Moreover, you may comprise so that the charge pattern selected by S3 can be customized by the user.
次に、マイクロコンピュータ９は、電池５の満充電時の電力量から電池５の現在の電力量を減算した値を、電池５が満充電になるために必要な残電力量として内部メモリなどに記憶する（Ｓ５）。例えば、マイクロコンピュータ９は、予め内部メモリなどに記憶されている電池５の満充電時の電圧と、センサにより検出される電池５の現在の電圧とに基づいて、残電力量を計算するように構成してもよい。また、マイクロコンピュータ９は、残電力量と電池５の電圧とが対応付けられているマップを予め内部メモリなどに記憶しておき、センサにより検出される電池５の電圧に対応する残電力量をマップから取り出すように構成してもよい。また、特許請求の範囲における電池状態取得手段及び電力量計算手段は、マイクロコンピュータ９により実行されるＳ５の処理としてもよい。 Next, the microcomputer 9 stores the value obtained by subtracting the current power amount of the battery 5 from the power amount when the battery 5 is fully charged in the internal memory or the like as the remaining power amount necessary for the battery 5 to be fully charged. Store (S5). For example, the microcomputer 9 calculates the remaining power amount based on the voltage when the battery 5 is fully charged and stored in the internal memory or the like in advance and the current voltage of the battery 5 detected by the sensor. It may be configured. The microcomputer 9 stores a map in which the remaining power amount and the voltage of the battery 5 are associated with each other in advance in an internal memory or the like, and calculates the remaining power amount corresponding to the voltage of the battery 5 detected by the sensor. You may comprise so that it may take out from a map. Further, the battery state acquisition unit and the power amount calculation unit in the claims may be the processing of S5 executed by the microcomputer 9.
次に、マイクロコンピュータ９は、インレット２を介して電源１０から充電器３に供給可能な電圧及び最大電流を取得する（Ｓ６）。例えば、ＳＡＥＪ１７７２の規格の場合、マイクロコンピュータ９は、Ｃｏｎｔｒｏｌ Ｐｉｌｏｔ信号により充電器３に供給可能な電圧及び最大電流を取得する。また、特許請求の範囲における電力取得手段は、マイクロコンピュータ９により実行されるＳ６の処理としてもよい。 Next, the microcomputer 9 acquires a voltage and a maximum current that can be supplied from the power supply 10 to the charger 3 via the inlet 2 (S6). For example, in the case of the standard of SAEJ1772, the microcomputer 9 acquires a voltage and a maximum current that can be supplied to the charger 3 by a Control Pilot signal. Further, the power acquisition means in the claims may be the processing of S6 executed by the microcomputer 9.
次に、マイクロコンピュータ９は、Ｓ２でメモリに格納した充電終了時刻ｔ２、Ｓ４でメモリに格納した充電パターン、Ｓ５で計算した残電力量、及びＳ６で取得した電圧及び最大電流に基づいて、充電開始時刻ｔ０を計算する（Ｓ７）。例えば、マイクロコンピュータ９は、Ｓ３で充電パターンＡが選択された場合、電源１０の最大電流（１２Ａ）の１／２の電流（６Ａ）で電池５を満充電にするためにかかる時間を求め、充電終了時刻ｔ２からその求めた時間前の時刻を充電開始時刻ｔ０とする。これにより、たとえ、タイマ充電中、電源１０の最大電流が１／２又は１／２よりも小さい電流になってしまっても充電終了時刻に電池５をほぼ満充電にすることができる。また、特許請求の範囲における充電開始時刻計算手段は、マイクロコンピュータ９により実行されるＳ７の処理としてもよい。 Next, the microcomputer 9 performs charging based on the charging end time t2 stored in the memory in S2, the charging pattern stored in the memory in S4, the remaining power calculated in S5, and the voltage and maximum current acquired in S6. A start time t0 is calculated (S7). For example, when the charging pattern A is selected in S3, the microcomputer 9 obtains the time required to fully charge the battery 5 with a current (6A) that is 1/2 of the maximum current (12A) of the power supply 10, The time before the calculated time from the charging end time t2 is set as the charging start time t0. Thereby, even if the maximum current of the power supply 10 becomes a current smaller than 1/2 or 1/2 during the timer charging, the battery 5 can be almost fully charged at the charging end time. Further, the charging start time calculation means in the claims may be the processing of S7 executed by the microcomputer 9.
次に、マイクロコンピュータ９は、タイマに充電開始時刻ｔ０を設定し、充電開始時刻ｔ０になるまで待機する（Ｓ８）。このとき、マイクロコンピュータ９は、タイマ充電モードが開始されたことを表示部７に表示させた後、省電力モードで待機するように構成してもよい。 Next, the microcomputer 9 sets the charging start time t0 in the timer and waits until the charging start time t0 is reached (S8). At this time, the microcomputer 9 may be configured to wait in the power saving mode after displaying the start of the timer charging mode on the display unit 7.
そして、マイクロコンピュータ９は、充電開始時刻ｔ０になると、充電を開始する（Ｓ９）。なお、マイクロコンピュータ９は、待機期間中、省電力モードになっている場合、省電力モードを終了してから充電を開始するように構成してもよい。また、特許請求の範囲における充電制御手段は、マイクロコンピュータ９により実行されるＳ８、Ｓ９の処理としてもよい。 The microcomputer 9 starts charging at the charging start time t0 (S9). If the microcomputer 9 is in the power saving mode during the standby period, the microcomputer 9 may be configured to start charging after ending the power saving mode. Moreover, the charge control means in the claims may be the processes of S8 and S9 executed by the microcomputer 9.
本実施形態の車両１によれば、電池５をタイマ充電する際、電源１０の最大電流で充電器３を経由して電池５を満充電する場合よりも小さい電流で充電開始時刻ｔ０を設定するため、充電中に電池５に供給される電力が小さくなっても、充電終了時刻ｔ２に満充電にならないことを低減することができる。これにより、ユーザは、充電終了時刻ｔ２に電池５の充電状態を気にせず車両１の運転を開始することができる。 According to the vehicle 1 of the present embodiment, when the battery 5 is charged by the timer, the charging start time t0 is set with a smaller current than when the battery 5 is fully charged via the charger 3 with the maximum current of the power supply 10. Therefore, even when the power supplied to the battery 5 during charging is reduced, it is possible to reduce the situation where the battery is not fully charged at the charging end time t2. Thereby, the user can start driving | running | working of the vehicle 1 without minding the charge condition of the battery 5 at the charge end time t2.
また、本実施形態の車両１によれば、充電終了時刻ｔ２に電池５が満充電になるように充電処理を制御するため、電池５を長時間満充電にさせておくことが抑えられ、長時間満充電にさせておくことによる電池５の劣化を低減することができる。 Further, according to the vehicle 1 of the present embodiment, since the charging process is controlled so that the battery 5 is fully charged at the charging end time t2, it is possible to prevent the battery 5 from being fully charged for a long time. It is possible to reduce the deterioration of the battery 5 due to full charge for hours.
なお、上記実施形態では、家庭用の電源などの電源１０から供給される電力により車両１の電池５を充電する構成であるが、充電スタンドから供給される電力により車両１の電池５を充電するように構成してもよい。このように、充電スタンドから供給される電力により車両１の電池５を充電する場合、その充電スタンドに備えられるマイクロコンピュータに図２に示す動作を行わせてもよい。 In the above embodiment, the battery 5 of the vehicle 1 is charged with power supplied from the power source 10 such as a household power source. However, the battery 5 of the vehicle 1 is charged with power supplied from the charging stand. You may comprise as follows. As described above, when the battery 5 of the vehicle 1 is charged with the electric power supplied from the charging stand, the microcomputer provided in the charging stand may perform the operation shown in FIG.
図４は、充電スタンド側で充電処理を制御する場合のその充電スタンドを示す図である。なお、図１に示す構成と同じ構成には同じ符号を付している。
図４に示す充電スタンド１１は、インレット２と、リレー４と、電池５と、スイッチ６（入力手段）と、表示部７と、記憶部８と、マイクロコンピュータ（コンピュータ）９（例えば、ＥＣＵ（Ｅｌｅｃｔｒｏｎｉｃ Ｃｏｎｔｒｏｌ Ｕｎｉｔ）など）とを備えて構成される。なお、記憶部８は、マイクロコンピュータ９内に設けられてもよい。また、特許請求の範囲における入力手段は、タッチパネルディスプレイにより構成される表示部７としてもよい。
FIG. 4 is a diagram illustrating the charging station when the charging process is controlled on the charging station side. In addition, the same code | symbol is attached | subjected to the same structure as the structure shown in FIG.
A charging stand 11 shown in FIG. 4 includes an inlet 2, a relay 4, a battery 5, a switch 6 (input means), a display unit 7, a storage unit 8, and a microcomputer (computer) 9 (for example, ECU ( Electronic Control Unit)). The storage unit 8 may be provided in the microcomputer 9. Moreover, the input means in a claim is good also as the display part 7 comprised by a touchscreen display.
充電スタンド１１のマイクロコンピュータ９は、インレット２が車両のプラグに接続されるとすぐに充電を開始させる。しかしインレット２が車両のプラグに接続される前にユーザがスイッチ６や表示部７のタッチパネルによって充電指示を入力しその後にインレット２が接続されると、充電スタンド１１のマイクロコンピュータ９は入力された充電指示に基づいてタイマ充電による所定時間経過後に充電を開始する。また、充電スタンド１１のマイクロコンピュータ９は、充電を開始するとき、リレー４をオンすることにより、電源１０から充電器３へ電力を供給させる。また、マイクロコンピュータ９は、充電を終了するとき、リレー４をオフすることにより、電源１０から充電器３への電力供給を停止させる。また、充電スタンド１１のマイクロコンピュータ９におけるタイマ充電を行う際の動作は、図２に示す動作と同様である。なお、電池５の満充電時の電力量（電圧）及び電池５の現在の電力量（電圧）は、インレット２を介して車両側から電力線通信により取得してもよいし、車両側から無線通信により取得してもよい。またＣＡＮ接続等でもよい。 The microcomputer 9 of the charging stand 11 starts charging as soon as the inlet 2 is connected to the plug of the vehicle. However, when the user inputs a charging instruction using the switch 6 or the touch panel of the display unit 7 before the inlet 2 is connected to the vehicle plug and the inlet 2 is connected thereafter, the microcomputer 9 of the charging stand 11 is input. Based on the charging instruction, charging is started after elapse of a predetermined time due to timer charging. The microcomputer 9 of the charging stand 11 supplies power from the power supply 10 to the charger 3 by turning on the relay 4 when starting charging. Moreover, the microcomputer 9 stops the power supply from the power supply 10 to the charger 3 by turning off the relay 4 when the charging is finished. Moreover, the operation | movement at the time of performing the timer charge in the microcomputer 9 of the charging stand 11 is the same as the operation | movement shown in FIG. In addition, the electric energy (voltage) at the time of full charge of the battery 5 and the current electric energy (voltage) of the battery 5 may be acquired by power line communication from the vehicle side via the inlet 2, or wireless communication from the vehicle side. You may acquire by. Also, a CAN connection or the like may be used.
このように構成しても、図１に示す実施形態と同様の効果を得ることができる。 Even if comprised in this way, the effect similar to embodiment shown in FIG. 1 can be acquired.
１ 車両
２ インレット
３ 充電器
４ リレー
５ 電池
６ スイッチ
７ 表示部
８ 記憶部
９ マイクロコンピュータ
１０ 電源
１１ 充電スタンド
DESCRIPTION OF SYMBOLS 1 Vehicle 2 Inlet 3 Charger 4 Relay 5 Battery 6 Switch 7 Display part 8 Memory | storage part 9 Microcomputer 10 Power supply 11 Charging stand
Claims (6)
充電開始時刻から充電終了時刻までに前記電池を満充電にする際の充電タイムスケジュールを示す複数の充電パターンを予め記憶手段に記憶させ、
前記充電開始時刻よりも前においてユーザが、前記充電終了時刻及び前記複数の充電パターンのうちの１つの充電パターンを入力手段で入力すると、前記電池の満充電時の電力量、前記電池の現在の電力量、及び車両に搭載の充電器に供給可能な電圧と最大電流を取得し、
前記電池の満充電時の電力量から前記電池の現在の電力量を減算した残電力量を計算し、
前記入力手段により入力される前記充電終了時刻及び前記充電パターンと前記電圧と前記最大電流と前記残電力量とに基づいて前記充電開始時刻を計算し、
前記充電開始時刻になると前記電池の充電を開始する
ことを特徴とするタイマ充電制御方法。 A timer charge control method for a computer that executes a charge control process for a battery mounted on a vehicle,
A plurality of charging patterns indicating a charging time schedule when fully charging the battery from a charging start time to a charging end time are stored in advance in a storage unit,
Prior to the charging start time, when the user inputs the charging end time and one charging pattern among the plurality of charging patterns with the input means, the amount of power when the battery is fully charged, the current battery current Obtain the amount of power, and the voltage and maximum current that can be supplied to the charger installed in the vehicle.
Calculate the remaining electric energy by subtracting the current electric energy of the battery from the electric energy when the battery is fully charged,
Calculate the charge start time based on the charge end time and the charge pattern, the voltage, the maximum current, and the remaining power amount input by the input means,
The timer charging control method, wherein charging of the battery is started when the charging start time is reached.
前記複数の充電パターンは、前記充電開始時刻から前記充電終了時刻まで一定の電流で、かつ、前記最大電流よりも小さい電流で前記電池を充電する第１の充電パターン、前記電池が満充電の直前になると充電を中断し、前記充電終了時刻の直前になると充電を再開する第２の充電パターン、及び、前記電池が満充電の直前になると、前記充電終了時刻になるまで前記最大電流よりも小さい電流で前記電池を充電する第３の充電パターンの３つの充電パターンである
ことを特徴とするタイマ充電制御方法。 The timer charging control method according to claim 1,
The plurality of charging patterns are a first charging pattern for charging the battery with a constant current from the charging start time to the charging end time and a current smaller than the maximum current, immediately before the battery is fully charged. The charging is interrupted and the second charging pattern that resumes charging immediately before the charging end time, and when the battery is just before full charging, is smaller than the maximum current until the charging end time is reached. 3. A timer charging control method, comprising three charging patterns of a third charging pattern for charging the battery with an electric current.
前記充電開始時刻よりも前においてユーザが、前記充電終了時刻及び前記複数の充電パターンのうちの１つの充電パターンを入力する入力手段と、
前記電池の満充電時の電力量及び前記電池の現在の電力量を取得する電池状態取得手段と、
車両に搭載の充電器に供給可能な電圧と最大電流を取得する電力取得手段と、
前記電池状態取得手段により取得される前記電池の満充電時の電力量から前記電池の現在の電力量を減算して残電力量を計算する残電力量計算手段と、
前記入力手段により入力される前記充電終了時刻及び前記充電パターンと、前記電力取得手段により取得される前記電圧と前記最大電流と、前記残電力量計算手段により計算される残電力量とに基づいて、前記充電開始時刻を計算する充電開始時刻計算手段と、
前記充電開始時刻になると、前記電池の充電を開始する充電制御手段と、
を備えることを特徴とする車両。 Storage means for storing a plurality of charging patterns indicating a charging time schedule when a battery mounted on a vehicle is fully charged from a charging start time to a charging end time;
An input means for a user to input one of the plurality of charging patterns and the charging end time before the charging start time;
Battery state acquisition means for acquiring the amount of power when the battery is fully charged and the current amount of power of the battery;
A power acquisition means for acquiring a voltage and a maximum current that can be supplied to a charger mounted on the vehicle;
A remaining power amount calculating means for calculating a remaining power amount by subtracting the current power amount of the battery from the power amount at the time of full charge of the battery acquired by the battery state acquiring means;
Based on the charging end time and the charging pattern input by the input unit, the voltage and the maximum current acquired by the power acquisition unit, and the remaining power amount calculated by the remaining power calculation unit. Charging start time calculating means for calculating the charging start time;
When the charging start time comes, charging control means for starting charging the battery;
A vehicle comprising:
前記複数の充電パターンは、前記充電開始時刻から前記充電終了時刻まで一定の電流で、かつ、前記最大電流よりも小さい電流で前記電池を充電する第１の充電パターン、前記電池が満充電の直前になると充電を中断し、前記充電終了時刻の直前になると充電を再開する第２の充電パターン、及び、前記電池が満充電の直前になると、前記充電終了時刻になるまで前記最大電流よりも小さい電流で前記電池を充電する第３の充電パターンの３つの充電パターンである
ことを特徴とする車両。 The vehicle according to claim 3,
The plurality of charging patterns are a first charging pattern for charging the battery with a constant current from the charging start time to the charging end time and a current smaller than the maximum current, immediately before the battery is fully charged. The charging is interrupted and the second charging pattern that resumes charging immediately before the charging end time, and when the battery is just before full charging, is smaller than the maximum current until the charging end time is reached. The vehicle is characterized in that the three charging patterns are a third charging pattern for charging the battery with an electric current.
前記充電開始時刻よりも前においてユーザが、前記充電終了時刻及び前記複数の充電パターンのうちの１つの充電パターンを入力する入力手段と、
前記電池の満充電時の電力量及び前記電池の現在の電力量を取得する電池状態取得手段と、
前記車両に搭載の充電器に供給可能な電圧と最大電流を取得する電力取得手段と、
前記電池状態取得手段により取得される前記電池の満充電時の電力量から前記電池の現在の電力量を減算して残電力量を計算する残電力量計算手段と、
前記入力手段により入力される前記充電終了時刻及び前記充電パターンと、前記電力取得手段により取得される前記電圧と前記最大電流と、前記残電力量計算手段により計算される残電力量とに基づいて、前記充電開始時刻を計算する充電開始時刻計算手段と、
前記充電開始時刻になると、前記電池の充電を開始する充電制御手段と、
を備えることを特徴とする充電スタンド。 Storage means for storing a plurality of charging patterns indicating a charging time schedule when a battery mounted on a vehicle is fully charged from a charging start time to a charging end time;
An input means for a user to input one of the plurality of charging patterns and the charging end time before the charging start time;
Battery state acquisition means for acquiring the amount of power when the battery is fully charged and the current amount of power of the battery;
Power acquisition means for acquiring a voltage and maximum current that can be supplied to a charger mounted on the vehicle;
A remaining power amount calculating means for calculating a remaining power amount by subtracting the current power amount of the battery from the power amount at the time of full charge of the battery acquired by the battery state acquiring means;
Based on the charging end time and the charging pattern input by the input unit, the voltage and the maximum current acquired by the power acquisition unit, and the remaining power amount calculated by the remaining power calculation unit. Charging start time calculating means for calculating the charging start time;
When the charging start time comes, charging control means for starting charging the battery;
A charging stand comprising:
前記複数の充電パターンは、前記充電開始時刻から前記充電終了時刻まで一定の電流で、かつ、前記最大電流よりも小さい電流で前記電池を充電する第１の充電パターン、前記電池が満充電の直前になると充電を中断し、前記充電終了時刻の直前になると充電を再開する第２の充電パターン、及び、前記電池が満充電の直前になると、前記充電終了時刻になるまで前記最大電流よりも小さい電流で前記電池を充電する第３の充電パターンの３つの充電パターンである
ことを特徴とする充電スタンド。 The charging stand according to claim 5,
The plurality of charging patterns are a first charging pattern for charging the battery with a constant current from the charging start time to the charging end time and a current smaller than the maximum current, immediately before the battery is fully charged. The charging is interrupted and the second charging pattern that resumes charging immediately before the charging end time, and when the battery is just before full charging, is smaller than the maximum current until the charging end time is reached. A charging stand, wherein the charging stand is a third charging pattern of a third charging pattern for charging the battery with an electric current.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010202862A JP2012060813A (en) | 2010-09-10 | 2010-09-10 | Charging control method, vehicle, and charging stand |
| PCT/JP2011/065022 WO2012032835A1 (en) | 2010-09-10 | 2011-06-30 | Timer charge control method, vehicle, and charge station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010202862A JP2012060813A (en) | 2010-09-10 | 2010-09-10 | Charging control method, vehicle, and charging stand |
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| JP2012060813A true JP2012060813A (en) | 2012-03-22 |
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| JP2010202862A Withdrawn JP2012060813A (en) | 2010-09-10 | 2010-09-10 | Charging control method, vehicle, and charging stand |
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| JP (1) | JP2012060813A (en) |
| WO (1) | WO2012032835A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140253039A1 (en) * | 2013-03-08 | 2014-09-11 | Texas Instruments Incorporated | Battery charger |
| CN104362684A (en) * | 2014-10-10 | 2015-02-18 | 华为技术有限公司 | Charging method and rechargeable equipment |
| US11554678B2 (en) | 2020-12-11 | 2023-01-17 | Ford Global Technologies, Llc | Vehicle direct current fast charging |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110962665B (en) * | 2019-10-24 | 2021-04-27 | 东南大学 | Scattered electric vehicle charging coordination method based on local measurement voltage amplitude |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3232912B2 (en) * | 1994-09-29 | 2001-11-26 | 株式会社豊田自動織機 | Charging device |
| JP4798087B2 (en) * | 2007-07-10 | 2011-10-19 | トヨタ自動車株式会社 | Electric power system and vehicle equipped with the same |
| JP2009194958A (en) * | 2008-02-12 | 2009-08-27 | Kansai Electric Power Co Inc:The | Charging controller and charging system |
| JP5332559B2 (en) * | 2008-12-03 | 2013-11-06 | レシップホールディングス株式会社 | Charger |
-
2010
- 2010-09-10 JP JP2010202862A patent/JP2012060813A/en not_active Withdrawn
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2011
- 2011-06-30 WO PCT/JP2011/065022 patent/WO2012032835A1/en active Application Filing
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140253039A1 (en) * | 2013-03-08 | 2014-09-11 | Texas Instruments Incorporated | Battery charger |
| US10044214B2 (en) * | 2013-03-08 | 2018-08-07 | Texas Instruments Incorporated | Battery charger |
| US10707689B2 (en) | 2013-03-08 | 2020-07-07 | Texas Instruments Incorporated | Battery charger |
| CN104362684A (en) * | 2014-10-10 | 2015-02-18 | 华为技术有限公司 | Charging method and rechargeable equipment |
| US11554678B2 (en) | 2020-12-11 | 2023-01-17 | Ford Global Technologies, Llc | Vehicle direct current fast charging |
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| Publication number | Publication date |
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| WO2012032835A1 (en) | 2012-03-15 |
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