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JPH02280633A - Battery charger - Google Patents

Battery charger

Info

Publication number
JPH02280633A
JPH02280633A JP1099254A JP9925489A JPH02280633A JP H02280633 A JPH02280633 A JP H02280633A JP 1099254 A JP1099254 A JP 1099254A JP 9925489 A JP9925489 A JP 9925489A JP H02280633 A JPH02280633 A JP H02280633A
Authority
JP
Japan
Prior art keywords
time
charging
voltage
start time
battery
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.)
Granted
Application number
JP1099254A
Other languages
Japanese (ja)
Other versions
JP2785316B2 (en
Inventor
Toshishige Fukatsu
利成 深津
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.)
Toyota Industries Corp
Original Assignee
Toyoda Automatic Loom Works Ltd
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 Toyoda Automatic Loom Works Ltd filed Critical Toyoda Automatic Loom Works Ltd
Priority to JP1099254A priority Critical patent/JP2785316B2/en
Publication of JPH02280633A publication Critical patent/JPH02280633A/en
Application granted granted Critical
Publication of JP2785316B2 publication Critical patent/JP2785316B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L53/00Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60Monitoring or controlling charging stations
    • B60L53/64Optimising energy costs, e.g. responding to electricity rates
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L2240/00Control parameters of input or output; Target parameters
    • B60L2240/10Vehicle control parameters
    • B60L2240/12Speed
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L2240/00Control parameters of input or output; Target parameters
    • B60L2240/40Drive Train control parameters
    • B60L2240/42Drive Train control parameters related to electric machines
    • B60L2240/421Speed
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L2240/00Control parameters of input or output; Target parameters
    • B60L2240/40Drive Train control parameters
    • B60L2240/54Drive Train control parameters related to batteries
    • B60L2240/545Temperature
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L2240/00Control parameters of input or output; Target parameters
    • B60L2240/40Drive Train control parameters
    • B60L2240/54Drive Train control parameters related to batteries
    • B60L2240/547Voltage
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L2240/00Control parameters of input or output; Target parameters
    • B60L2240/40Drive Train control parameters
    • B60L2240/54Drive Train control parameters related to batteries
    • B60L2240/549Current
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/64Electric machine technologies in electromobility
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies relating to charging of electric vehicles
    • Y02T90/12Electric charging stations
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies relating to charging of electric vehicles
    • Y02T90/16Information or communication technologies improving the operation of electric vehicles
    • Y02T90/167Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S30/00Systems supporting specific end-user applications in the sector of transportation
    • Y04S30/10Systems supporting the interoperability of electric or hybrid vehicles
    • Y04S30/14Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

PURPOSE:To reduce charging cost by charging a battery when the time clocked by a clocking means in a time zone most inexpensive in power rates stored in a storage means. CONSTITUTION:A time zone memory part 31 stores power rates for each time zone and the time when the specified time zone starts. For example, suppose the time zone most inexpensive inpower rates is of a single class, say, from midnight (0000) to six o'clock (0600), 0000 is outputted into a comparison circuit 34 as a starting time for charging. A clock circuit 33 clocks the present time and outputs the clocked time into the comparison circuit 34. When the time clocked by the clock circuit 33 is compared with the starting time for charging from a time zone memory part 31 and is coincided with the starting time, a coincidence signal is outputted into a control part 33. The control part 32 receives the coincidence signal from this comparison circuit 34 and charges the battery.

Description

【発明の詳細な説明】 〔概   要〕 第1の発明は、夜間などの電力料金の安い時間帯に充電
を行えるようにしたものであり、また、第2の発明は、
充電する機器の駆動開始時刻を予め設定しておくことで
、電力料金が安い時間帯で、しかも駆動開始時刻までに
充電が完了するようににしたものである。
[Detailed Description of the Invention] [Summary] The first invention enables charging during times when electricity rates are low, such as at night, and the second invention
By setting the drive start time of the device to be charged in advance, charging can be completed during a time period when electricity rates are low and by the drive start time.

〔産業上の利用分野〕[Industrial application field]

本発明は、バッテリなどの畜電池の充電を行う充電器に
関する。
The present invention relates to a charger for charging storage batteries such as batteries.

〔従来の技術〕[Conventional technology]

従来、バッテリなどを電源とする機器、例えばバッテリ
式フォークリフトなどにおいては、バッテリの電圧が低
下したときには、使用者が昼休み、あるいは仕事の終了
後などの機器を使用しない時間にバッテリの充電を行っ
ている。
Conventionally, in equipment powered by batteries, such as battery-operated forklifts, when the battery voltage drops, the user charges the battery during a time when the equipment is not in use, such as during lunch breaks or after work. There is.

第1O図は従来の充電器の回路構成を示す図である。同
図に示すように、トランス11は過電流を検出したとき
オフする過電流リレー12と、電磁接触コイル13aに
よりオン、オフされるコンタクト13bとからなる電磁
スイッチ13とを介して交流電源14に接続されている
FIG. 1O is a diagram showing the circuit configuration of a conventional charger. As shown in the figure, the transformer 11 is connected to an AC power source 14 via an overcurrent relay 12 that turns off when an overcurrent is detected, and an electromagnetic switch 13 that is made up of a contact 13b that is turned on and off by an electromagnetic contact coil 13a. It is connected.

充電スイッチ15は充電の開始を指示するスイッチであ
り、この充電スイッチ15が操作されると制御部16は
、コイル駆動回路17に指示して電磁接触コイル13a
を励磁する。
The charging switch 15 is a switch that instructs to start charging, and when the charging switch 15 is operated, the control unit 16 instructs the coil drive circuit 17 to start the electromagnetic contact coil 13a.
Excite.

これにより電磁スイッチ13がオンしてトランス11に
電圧が供給され、トランス11は入力電圧を所定電圧ま
で降圧して整流器18に出力する。
This turns on the electromagnetic switch 13 and supplies voltage to the transformer 11, which steps down the input voltage to a predetermined voltage and outputs it to the rectifier 18.

整流器18は、例えば複数のダイオードからなる全波整
流回路であり、整流器18で整流された直流電圧はヒユ
ーズ19を経てバッテリ20に供給される。
The rectifier 18 is, for example, a full-wave rectifier circuit consisting of a plurality of diodes, and the DC voltage rectified by the rectifier 18 is supplied to the battery 20 via a fuse 19.

電圧検出回路21は上記バッテリ20の電圧を検出する
回路であり、検出された電圧は制御部16に出力されて
充電の制御が行われる。
The voltage detection circuit 21 is a circuit that detects the voltage of the battery 20, and the detected voltage is output to the control section 16 to control charging.

また、交流検出回路22は停電などを検出するための回
路であり、この交流検出回路22で電源源が切れたこと
が検出されると、制御部16はそれまでの充電時間を内
蔵するメモリに記憶して、停電が終了したのち継続して
充電が行えるようにする。
The AC detection circuit 22 is a circuit for detecting a power outage, etc. When the AC detection circuit 22 detects that the power source is turned off, the control unit 16 stores the charging time in the built-in memory. The memory is stored so that charging can continue after a power outage ends.

以上のような構成の充電器において、充電スイッチ15
が操作されると、まず制御部16からコイル駆動回路1
7に励磁の指示が与えられ、電磁接触コイル13aに対
する励磁が行われる。これにより電磁スイッチ13のコ
ンタクト13bがオンしてトランス11に交流電圧が印
加される。そしてそのトランス11で降圧された電圧が
さらに整流器18で直流に変換されてバッテリ20に供
給されてバッテリ20の充電が行われる。
In the charger configured as above, the charging switch 15
When is operated, the control section 16 first controls the coil drive circuit 1.
7 is given an excitation instruction, and the electromagnetic contact coil 13a is excited. As a result, the contact 13b of the electromagnetic switch 13 is turned on, and an alternating current voltage is applied to the transformer 11. The voltage stepped down by the transformer 11 is further converted into direct current by the rectifier 18 and supplied to the battery 20, so that the battery 20 is charged.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

上述した従来の充電器では、充電スイッチ15を操作し
た時点で充電が開始されるようになっており、夜間など
の電力料金の安い時間を選んで充電を行うことはできな
かった。
In the conventional charger described above, charging is started when the charging switch 15 is operated, and it is not possible to select a time when electricity rates are low, such as night time, to perform charging.

第1の発明の課題は、電力料金の安い時間帯に充電を開
始できるようにすることである。
An object of the first invention is to enable charging to be started during a time period when electricity rates are low.

そして、第2の発明の課題は、電力料金の安い時間帯に
充電できるようにし、さらに充電を完了する時刻を使用
者が設定できるようにすることである。
A second object of the invention is to enable charging during times when electricity rates are low, and to allow the user to set the time to complete charging.

〔課題を解決するための手段〕[Means to solve the problem]

第1図(a)の本発明の原理説明図において、計時手段
1は現在時刻を計時し、記憶手段2は電力料金の最も安
い時間帯を記憶する。
In the diagram illustrating the principle of the present invention shown in FIG. 1(a), the clock means 1 measures the current time, and the storage means 2 stores the time period when the electricity rate is lowest.

制御手段3は上記計時手段lで計時される時刻が上記記
憶手段2に記憶されている最も電力料金の安い時間帯に
あるときに充電を行う。
The control means 3 performs charging when the time measured by the time measuring means 1 is in the time zone with the lowest electricity rate stored in the storage means 2.

また、第1図(b)の原理説明図において、駆動時刻設
定手段4は、使用者に設定されるフォークリフトなどの
負荷の駆動開始時刻を記憶する。
Further, in the principle explanatory diagram of FIG. 1(b), the driving time setting means 4 stores the driving start time of a load such as a forklift, which is set by the user.

電圧検出手段5は畜電池の電圧を検出する。The voltage detection means 5 detects the voltage of the storage battery.

演算手段6は畜電池を所定時間充電したとき、そのとき
上記電圧検出手段5で検出される電圧から充電が完了す
るまでの時間を算出する。
When the battery is charged for a predetermined period of time, the calculating means 6 calculates the time until charging is completed from the voltage detected by the voltage detecting means 5 at that time.

制御手段7は上記演算手段6で算出された充電が完了す
るまでの時間と、上記記憶手段2に記憶された時間帯及
び駆動時刻設定手段4に設定された駆動開始時刻に基づ
いて、電力料金が最も安く、しかも負荷の駆動開始時刻
までに充電が完了する充電開始時刻を求めると共に、上
記計時手段1で計時された時刻がその充電開始時刻に達
したときに充電を開始する制御を行う。
The control means 7 determines the electricity rate based on the time until charging is completed calculated by the calculation means 6, the time zone stored in the storage means 2, and the drive start time set in the drive time setting means 4. A charging start time is determined which is cheapest and charging is completed by the drive start time of the load, and control is performed to start charging when the time measured by the time measuring means 1 reaches the charging start time.

〔作   用〕[For production]

第1の発明では、充電が指示されると、計時手段lで計
時される時刻が電力料金の最も安い時間帯に達した時に
充電を開始する。
In the first invention, when charging is instructed, charging is started when the time measured by the clocking means 1 reaches the lowest electricity rate.

また、第2の発明では、充電が指示されると、まず畜電
池を所定時間充電し、そのときの畜電池の電圧変化から
畜電池の放電状態を調べて、充電に必要な時間を算出す
る。そして、制御手段7は上記のようにして演算手段6
で算出された充電時間と、設定された駆動開始時刻など
から、電力料金が安く、しかも駆動開始時刻までに充電
が完了する充電開始時刻を求め、さらに計時手段1で計
時された時刻と上記の充電開始時刻を比較し、現在時刻
が充電開始時刻に達した時に充電を開始する。
Further, in the second invention, when charging is instructed, the battery is first charged for a predetermined time, and the discharge state of the battery is checked from the voltage change of the battery at that time, and the time required for charging is calculated. . The control means 7 then operates the calculation means 6 as described above.
From the charging time calculated in 1 and the set drive start time, etc., find a charging start time that has a low electricity charge and completes charging by the drive start time, and then calculates the charging start time, which is calculated by the time measured by the timer 1 and the above-mentioned time. The charging start times are compared, and charging is started when the current time reaches the charging start time.

従って、夜間などの電力料金の安い時間帯を選んで充電
することができ、また、予め負荷の駆動開始時刻を設定
しておくことで、負荷を使用する時刻までに充電を完了
させることができる。
Therefore, you can choose a time when electricity prices are low, such as at night, to charge the battery, and by setting the time to start driving the load in advance, charging can be completed by the time the load is to be used. .

〔実   施  例〕〔Example〕

以下、本発明の実施例を第2回ないし第13図を参照し
ながら説明する。
Embodiments of the present invention will be described below with reference to FIGS. 2 to 13.

第2図は、第1の発明の実施例の充電器の回路構成図で
ある。
FIG. 2 is a circuit diagram of the charger according to the first embodiment of the invention.

同図において、第14図に示した従来の充電器と同じ回
路ブロックには同じ符号を付け、それらの説明は省略す
る。
In this figure, circuit blocks that are the same as those of the conventional charger shown in FIG. 14 are given the same reference numerals, and their explanation will be omitted.

第2図において、時間帯記憶部31は時間帯別の電力料
金とその時間帯の始まる時刻を記憶しており、例えば電
力料金の安い時間帯が、0時から6時の一種類であれば
、0時を充電開始時刻として比較回路34に出力する。
In FIG. 2, the time zone storage unit 31 stores power rates for each time zone and the start time of each time zone. For example, if the low power rate is one type of time zone from 0:00 to 6:00, , 0 o'clock is outputted to the comparison circuit 34 as the charging start time.

計時回路33は現在時刻を計時する回路であり、計時し
た時刻を比較回路34に出力する。
The clock circuit 33 is a circuit that clocks the current time, and outputs the clocked time to the comparison circuit 34.

比較回路34は、計時回路33で計時される時刻と、時
間帯記憶部31からの充電開始時刻を比較し、一致した
とき一致信号を制?ffU部32に出力する。
The comparison circuit 34 compares the time measured by the clock circuit 33 and the charging start time from the time zone storage section 31, and when they match, outputs a match signal. It is output to the ffU section 32.

制御部32は、この比較回路34からの一致信号を受け
て、コイル駆動部17に電磁接触コイル13aの励磁を
指示してして電磁スイッチ13を閉じて充電を開始する
Upon receiving the coincidence signal from the comparison circuit 34, the control section 32 instructs the coil drive section 17 to excite the electromagnetic contact coil 13a, closes the electromagnetic switch 13, and starts charging.

上記構成の充電器において、充電スイッチ15が操作さ
れると、時間帯記憶部31から電力料金の安い時間帯の
始まる時刻が充電開始時刻として出力される。このとき
、電磁スイッチ13は開いたままであり充電はまだ開始
されない。
In the charger configured as described above, when the charging switch 15 is operated, the time at which the time slot with low electricity rates starts is output from the time slot storage section 31 as the charging start time. At this time, the electromagnetic switch 13 remains open and charging has not yet started.

そして、その充電開始時刻が比較回路34において、計
時回路33で計時される現在時刻と比較されて、現在時
刻が充電開始時刻に達した時に一致信号が制御部32に
出力される。制御部32はその一致信号に基づいて電磁
スイッチ13を閉じバッテリ20の充電を開始する。
Then, the comparison circuit 34 compares the charging start time with the current time measured by the clock circuit 33, and when the current time reaches the charging start time, a match signal is output to the control unit 32. Based on the coincidence signal, the control unit 32 closes the electromagnetic switch 13 and starts charging the battery 20.

第3図は、同じ時刻に充電スイッチ15を操作した場合
の、従来の充電器と本実施例の充電器との動作を比較し
たものである。従来例の場合には充電スイッチ15を操
作した時点で充電が開始されるているのに対し、実施例
の場合には充電スイッチ15が操作されても、すぐには
充電を行われず電力料金の安い時間帯になってから充電
が開始されるでいる。
FIG. 3 compares the operations of the conventional charger and the charger of this embodiment when the charging switch 15 is operated at the same time. In the case of the conventional example, charging starts when the charging switch 15 is operated, whereas in the case of the embodiment, even if the charging switch 15 is operated, charging does not start immediately and the electricity bill is reduced. Charging will only start when the time is cheaper.

また、第4図は上述した電力料金の安い時間帯に充電す
る他に、操作した時点ですぐに充電を開始するスイッチ
35を設けた、本発明の第2の実施例の回路構成図であ
る。
Further, FIG. 4 is a circuit configuration diagram of a second embodiment of the present invention, which is provided with a switch 35 that starts charging immediately when operated, in addition to charging during the time when the electricity rate is low as described above. .

スイッチ35の操作信号は制御部32に入力しており、
他の回路構成は第2図と同一である。
The operation signal of the switch 35 is input to the control unit 32,
The other circuit configurations are the same as in FIG. 2.

上記回路によれば電力料金の安い時間帯に充電する他に
、緊急に充電をする必要があるときには、スイッチ35
を操作して直ちに充電することもできる。
According to the above circuit, in addition to charging during times when electricity rates are low, when there is an urgent need to charge, the switch 35
You can also charge the battery immediately by operating the .

さらに、第5図は充電開始時間を任意に設定出来るよう
にした本発明の第3の実施例の回路構成図である。
Furthermore, FIG. 5 is a circuit configuration diagram of a third embodiment of the present invention in which the charging start time can be arbitrarily set.

スイッチ36は時間帯記憶部31と計時回路33とのい
ずれに対して時刻の設定を行うかを切り)臭えるスイッ
チであり、スイッチ37はスイッチ36で選択した回路
に、充電開始時刻、あるいは修正した時刻を設定する為
のスイッチである。
The switch 36 is a switch for setting the time for either the time zone storage unit 31 or the clock circuit 33, and the switch 37 is a switch for setting the charging start time or correction for the circuit selected by the switch 36. This is a switch for setting the time.

例えば、スイッチ36が時間帯記憶部31側に切り換え
られている場合には、スイッチ37を操作して時間帯記
憶部31に任意の充電開始時刻を設定することができ、
その時設定された時刻は表示部38に表示される。
For example, when the switch 36 is switched to the time zone storage section 31 side, an arbitrary charging start time can be set in the time zone storage section 31 by operating the switch 37.
The time set at that time is displayed on the display section 38.

従って、スイッチ36及び37を操作して電力料金の安
い時間帯とは別に、任意の時刻を充電開始時側として設
定することができるので、それらの時刻を選択して充電
を行うことができる。
Therefore, by operating the switches 36 and 37, it is possible to set any time as the charging start time, in addition to the time period when electricity rates are low, so that charging can be performed by selecting those times.

次に、第6図は第2の発明の実施例の充電器の回路構成
を示す図である。
Next, FIG. 6 is a diagram showing a circuit configuration of a charger according to an embodiment of the second invention.

第6図についても同様に第2図、第4図及び第5図と同
じ回路ブロックには同じ符号を付けて説明を行う。
6, the same circuit blocks as those in FIGS. 2, 4, and 5 will be described with the same reference numerals.

第6図において、駆動開始時刻記憶部41は、設定スイ
ッチ42の操作により設定されたフォークリフトの駆動
開始時刻を記憶する回路であり、そのとき設定された時
刻は表示部38に表示される。
In FIG. 6, the drive start time storage section 41 is a circuit that stores the drive start time of the forklift set by operating the setting switch 42, and the set time is displayed on the display section 38.

充電特性メモリ43は、時間帯別の電力料金と、種々の
周囲温度おけるバッテリの転極点電圧と、それぞれの周
囲温度の基でバッテリを充電したとき、充電を開始して
から転極点電圧に達するまでの間のバッテリの電圧の変
化とを記憶している。
The charging characteristic memory 43 stores the power rate for each time period, the turning point voltage of the battery at various ambient temperatures, and the voltage at which the turning point is reached after charging is started when the battery is charged at each ambient temperature. Changes in battery voltage up to that point are memorized.

第7図は、上記充電特性メモリ43の構成の一部を示す
図であり、メモリエリアのアドレス1からアドレスnま
でに、充電を開始してから転極点電圧に達するまでの電
圧変化を10分間隔で計測したデータが記憶されている
。また、アドレスn+1には交流検出回路22で検出さ
れた電圧が、アドレスn+2にはその時の周囲温度が記
憶されている。この充電特性メモリ43には、予め一定
の周囲温度の基で計測した電圧データを記憶させておい
てもよいし、あるいはバッテリを最初に充電するときに
電圧データを収集して、そのときの周囲温度における電
圧データとして上記のメモリエリアに記憶するようにし
ても良い。
FIG. 7 is a diagram showing a part of the configuration of the charging characteristic memory 43, and shows the voltage change over 10 minutes from the start of charging until reaching the turning point voltage from address 1 to address n in the memory area. Data measured at intervals is stored. Furthermore, the voltage detected by the AC detection circuit 22 is stored at address n+1, and the ambient temperature at that time is stored at address n+2. The charging characteristic memory 43 may store voltage data measured at a constant ambient temperature in advance, or may collect voltage data when charging the battery for the first time and store it in advance at a certain ambient temperature. The data may be stored in the memory area as voltage data at temperature.

制御部45は、各種のスイッチの操作信号に基づいてバ
ッテリ20に対する充電の制御を行うものである。制御
部45は、充電スイッチ15が操作され充電の指示が与
えられると、まず一定時間1451スイツチ13を閉じ
充電を行ってその間のパンテリ20の電圧データを収集
し、その後電磁スイッチ13を開いて充電を打ち切る。
The control unit 45 controls charging of the battery 20 based on operation signals of various switches. When the charging switch 15 is operated and a charging instruction is given, the control unit 45 first closes the 1451 switch 13 for a certain period of time to perform charging, collects voltage data of the battery pack 20 during that time, and then opens the electromagnetic switch 13 to perform charging. will be discontinued.

第8図は制御部45のRAMの構成図であり、アドレス
1からアドレスkに一定時間充電したときのバッテリ2
0の電圧データが記憶され、アドレスに+1に交流検出
回路22で検出された交流電圧、アドレスに+2にその
時の周囲温度が記憶される。
FIG. 8 is a configuration diagram of the RAM of the control unit 45, and shows the configuration of the battery 2 when charged from address 1 to address k for a certain period of time.
Voltage data of 0 is stored, the AC voltage detected by the AC detection circuit 22 is stored in address +1, and the ambient temperature at that time is stored in address +2.

制御部45は、上記のRAMに記憶された電圧データと
充電特性メモリ43の電圧データとから、そのときの周
囲温度の基でバッテリ20の電圧が転極点電圧に達する
までの時間を算出する。そして、その算出した時間から
充電に要する全体の時間を求め、さらに電力料金が安い
時間帯で、使用者が設定した駆動開始時刻までに充電が
完了する充電開始時刻を求める。
The control unit 45 calculates the time until the voltage of the battery 20 reaches the turning point voltage based on the ambient temperature at that time, from the voltage data stored in the RAM and the voltage data in the charging characteristic memory 43. Then, the total time required for charging is determined from the calculated time, and furthermore, a charging start time is determined in which the charging is completed by the drive start time set by the user during a time period when the electricity rate is low.

充電開始時刻メモリ44は、上記のようにして制御部4
5で算出される充電開始時刻を記憶するメモリである。
The charging start time memory 44 is stored in the control unit 4 as described above.
This is a memory that stores the charging start time calculated in step 5.

次に、上記回路の動作を第9図のフローチャートを参照
しながら説明する。
Next, the operation of the above circuit will be explained with reference to the flowchart shown in FIG.

設定スイッチ42によりフォークリフトの駆動開始時間
を予め設定した後、充電スイッチ15を操作すると、そ
のスイッチ操作がステップS1で検出される。そして、
次のステップS2で電磁コイル13aが数十分間励磁さ
れて充電が行われ、その間のバッテリ20の電圧変化が
電圧検出回路21で検出され、検出された電圧は制御部
45に内蔵されるRAMに記憶される。
When the charging switch 15 is operated after the driving start time of the forklift is preset by the setting switch 42, the switch operation is detected in step S1. and,
In the next step S2, the electromagnetic coil 13a is excited for several tens of minutes to perform charging, and the voltage change of the battery 20 during that time is detected by the voltage detection circuit 21, and the detected voltage is transferred to the RAM built in the control unit 45. is memorized.

その後ステップS3で、制御部45のRAMに記憶され
たバッテリ20の電圧変化を示すデータと、充電特性メ
モリ43に記憶されている充電を開始してから所定の転
極点電圧に達するまでの間の電圧変化を示すデータとか
ら、充電しようとするバッテリ20を転極点電圧まで充
電するのに必要な時間を算出する。
Thereafter, in step S3, the data indicating the voltage change of the battery 20 stored in the RAM of the control unit 45 and the data stored in the charging characteristic memory 43 from the start of charging until reaching a predetermined turning point voltage are used. The time required to charge the battery 20 to be charged to the turning point voltage is calculated from the data indicating the voltage change.

例えば、充電しようとするバッテリ20を一定時間充電
して得られたデータが、第10図に破線aで示される曲
線となり、充電特性メモリ43に記憶されている電圧デ
ータが同図すに示される曲線となる場合に、電圧データ
とのある時点での差のデータをD、それより時間t、後
の差のデータをD′としα、β、Tを一定の定数とする
と、曲線aで示されるパンテリ電圧が転極点電圧に達す
るまでの時間T、は以下の式で表せる。
For example, the data obtained by charging the battery 20 to be charged for a certain period of time becomes the curve shown by the broken line a in FIG. 10, and the voltage data stored in the charging characteristic memory 43 is shown in the same figure. In the case of a curve, if the data of the difference with the voltage data at a certain point is D, the data of the difference after a time t is D', and α, β, and T are constants, then the curve a is shown. The time T required for the panteri voltage to reach the inversion point voltage can be expressed by the following formula.

T、=(C転極点電圧−D)/ (D’−D)/11)
×α±(周囲温度の差)×β+(充電時の交流電圧の差
)×γ 上記の弐に基づいてその時の周囲温度において転)重点
電圧に達するまでの時間を算出することができる。
T, = (C turning point voltage - D) / (D' - D) / 11)
× α ± (difference in ambient temperature) × β + (difference in AC voltage during charging) × γ Based on the above 2, it is possible to calculate the time required to reach the critical voltage at the ambient temperature at that time.

そして、ステップS4で、周囲温度、指定された充電の
種R(均等充電、普通充電など)及び上記ステップS3
で求めた転極点電圧に達するまでの時間から、充電が完
了するまでの時間を算出する。また、次のステップS5
で充電時間の算出のために予め充電した数十分の時間を
、ステップS4で求めた全体の充電時間から減算して必
要な充電時間を求める。
Then, in step S4, the ambient temperature, the specified charging type R (equal charging, normal charging, etc.) and the above-mentioned step S3
Calculate the time it takes to complete charging from the time it takes to reach the turning point voltage found in . Also, the next step S5
In order to calculate the charging time, the required charging time is determined by subtracting the several tens of minutes of charging time from the total charging time determined in step S4.

ステップS6では、このようにして算出された充電時間
と、充電特性メモリ43記憶されている電力料金の安い
時間帯のデータと、駆動開始時刻記憶部41に設定され
ている駆動開始時刻とから、電力料金の安い時間帯で、
しかも設定された駆動開始時刻までに充電が完了する充
電開始時刻を算出して、充電開始時刻メモリ44に書き
込む。
In step S6, based on the charging time calculated in this way, the data of the low power rate time period stored in the charging characteristic memory 43, and the drive start time set in the drive start time storage section 41, During times when electricity prices are low,
Furthermore, the charging start time at which charging is completed by the set driving start time is calculated and written in the charging start time memory 44.

その後、スッテプS7で、計時回路33で計時される時
刻と、充電開始時刻メモリ44に記憶されている充電開
始時刻とを比較し、現在時刻が充電開始時刻に達したと
きに充電を開始する。
Thereafter, in step S7, the time measured by the clock circuit 33 and the charging start time stored in the charging start time memory 44 are compared, and charging is started when the current time reaches the charging start time.

この結果、例えば第11図に示すようなバッテリ20の
放電量が大きく、単に電力料金の安い時間帯に充電を開
始すると使用したい時刻までに充電が終了しない場合で
も、必要な時間までに充電を完了させておくことができ
る。
As a result, even if the amount of discharge of the battery 20 is large as shown in FIG. 11, and charging is not completed by the time you want to use it if you simply start charging at a time when electricity rates are low, charging will be completed by the required time. You can leave it completed.

また、このとき使用者が設定した駆動開始時刻より大幅
に早い時刻に充電が終了してしまうと、バッテリ20の
自己放電によりバッテリ電圧が下がってしまうことがあ
るので、駆動開始時刻と全体の充電時間などから充電開
始時刻を適宜変更している。
Additionally, if charging ends much earlier than the drive start time set by the user, the battery voltage may drop due to self-discharge of the battery 20. The charging start time is changed as appropriate based on the time of day.

例えば第12図に示すように、充電時間が比較的短い場
合には、電力料金の安い時間帯の終了時刻を充電終了時
刻として設定し、その終了時刻から必要な充電時間を減
算して充電開始時刻を算出する。
For example, as shown in Figure 12, if the charging time is relatively short, set the end time of a time period with low electricity rates as the charging end time, subtract the required charging time from that end time, and start charging. Calculate the time.

また、充電に要する時間が電力料金の安い時間帯の長さ
より長い場合には、まず電力料金の安い時間帯の始まる
時刻を充電開始時刻としたときに、駆動開始時刻までに
充電が終了するか否かを判断して充電開始時刻を算出し
ている。すなわち、上記の時刻を充電開始時刻としたと
きに駆動開始時刻までに充電が終了する場合には、その
時刻を充電開始時刻として充電開始時刻メモリ44に設
定し、駆動開始時刻までに充電が終了しない場合には、
駆動開始時刻に近い時刻を充電終了時刻とし、その時刻
から必要な充電時間を減算して充電開始時刻を求めてい
る。
In addition, if the time required for charging is longer than the length of the time period with low electricity rates, first, if the time when the electricity rate is low is set as the charging start time, then whether charging will be completed by the drive start time or not. The charging start time is calculated by determining whether or not the battery is present. That is, when the charging start time is set to the above time and charging is completed by the driving start time, that time is set as the charging start time in the charging start time memory 44, and charging is completed by the driving start time. If you don't,
A time close to the driving start time is set as the charging end time, and the required charging time is subtracted from that time to obtain the charging start time.

またフォークリフトを駆動させたい時刻が電力料金の安
い時間帯の終了時刻から大幅に離れているときには、駆
動開始時刻に近い時刻を充電終了時刻とし、その時刻か
ら必要な充電時間を減算して充電開始時刻を求めている
In addition, if the time you want to drive the forklift is far away from the end time of a time period with low electricity rates, set the time close to the drive start time as the charging end time, subtract the required charging time from that time, and start charging. I'm looking for the time.

さらに、第13図は第2の発明の実施例の変更例を示し
ている。同図は充電特性メモリ43に複数種類の特性デ
ータを記憶させ、充電時にスイッチ46を操作してそれ
らの特性データを選択できるようにした充電器の回路構
成を示している。
Furthermore, FIG. 13 shows a modification of the embodiment of the second invention. This figure shows a circuit configuration of a charger in which a plurality of types of characteristic data are stored in a charging characteristic memory 43, and the characteristic data can be selected by operating a switch 46 during charging.

一つの充電器で複数のタイプのバッテリを充電しようと
すると、バッテリのタイプによってそれぞれ充電特性が
異なる為に、一種類の充電特性データだけでは、演算で
求めた充電時間と実際に必要な充電時間に大きな誤差が
生じる場合がある。
When trying to charge multiple types of batteries with one charger, each type of battery has different charging characteristics, so using only one type of charging characteristics data will not be able to calculate the calculated charging time and the actual required charging time. A large error may occur.

そこで、充電特性メモリ43に種々のタイプのバッテリ
の特性データを記憶させ、それらの特性データのなかか
ら充電するバッテリに対応したデータを選択することで
、最適な充電時間を選んで充電することできる。
Therefore, by storing characteristic data of various types of batteries in the charging characteristic memory 43 and selecting data corresponding to the battery to be charged from among these characteristic data, it is possible to select an optimal charging time and charge the battery. .

〔発明の効果〕〔Effect of the invention〕

本発明によれば、電力料金の安い時間帯を選んで充電を
行うことができ、さらに負荷を駆動させたい時刻までに
充電を完了させておくことができる。
According to the present invention, it is possible to perform charging by selecting a time slot when the power rate is low, and furthermore, it is possible to complete charging by the time when the load is desired to be driven.

【図面の簡単な説明】[Brief explanation of drawings]

第1図(a)、(b)は本発明の詳細説明第2図は第1
の発明の実施例の充電器の回路構成図、 第3図は充電時間の説明図、 第4図及び第5図は第1の発明の他の実施例を示す図、 第6図は第2の発明の実施例の回路構成図、第7図は充
電特性メモリのメモリ構成図、第8図は制御部に内蔵さ
れるRAMのメモリの構成図、 第9図は第6図の動作を説明するフローチャート、 第10図は充電特性を説明する図表、 第11図及び第12図は充電時間の説明図、第13図は
第2の発明の実施例の変更例を示す図、 第14図は従来の充電器の回路構成図である。 1・・・計時手段 2・・・記憶手段 3・・・制御手段 駆動時刻設定手段 電圧検出手段 演算手段 制御手段
Figures 1 (a) and (b) are detailed explanations of the present invention. Figure 2 is a detailed explanation of the present invention.
FIG. 3 is an explanatory diagram of charging time, FIGS. 4 and 5 are diagrams showing other embodiments of the first invention, and FIG. 6 is a diagram showing the second embodiment of the invention. FIG. 7 is a memory configuration diagram of a charging characteristic memory, FIG. 8 is a configuration diagram of a RAM memory built in the control section, and FIG. 9 explains the operation of FIG. 6. 10 is a chart explaining charging characteristics, FIGS. 11 and 12 are charts explaining charging time, FIG. 13 is a diagram showing a modification of the embodiment of the second invention, and FIG. 14 is a chart explaining charging characteristics. FIG. 2 is a circuit configuration diagram of a conventional charger. 1...Clocking means 2...Storing means 3...Controlling means Drive time setting means Voltage detection means Calculating means Controlling means

Claims (1)

【特許請求の範囲】 1)時刻を計時する計時手段と、 電力料金の最も安い時間帯を記憶する記憶手段と、 前記計時手段で計時される時刻が前記記憶手段に記憶さ
れている最も電力料金の安い時間帯にあるときに充電を
行う制御手段とを備えることを特徴とする充電器。 2)時刻を計時する計時手段と、 電力料金の最も安い時間帯を記憶する記憶手段と、 畜電池の負荷の駆動開始時刻を設定する駆動時刻設定手
段と、 畜電池の電圧を検出する電圧検出手段と、 畜電池を所定時間充電し、そのとき前記電圧検出手段で
検出される電圧変化から充電に必要な時間を算出する演
算手段と、 前記演算手段で算出された充電時間と、前記記憶手段に
記憶された時間帯及び駆動時刻設定手段に設定された駆
動開始時刻に基づいて、電力料金が最も安く、かつ負荷
の駆動開始時刻までに充電が完了する充電開始時刻を求
めると共に、前記計時手段で計時された時刻が該充電開
始時刻に達したときに充電を開始するよう充電を制御す
る制御手段とを備えることを特徴とする充電器。
[Scope of Claims] 1) A clock means for measuring time, a storage means for storing a time period with the lowest electricity rate, and a time measured by the time measurement means at the lowest electricity rate stored in the storage means. A charger characterized by comprising: a control means for charging during a time period when the charge is cheap. 2) A clock means for measuring the time, a memory means for storing the time period when the electricity rate is cheapest, a drive time setting means for setting the start time of driving the load of the storage battery, and a voltage detection means for detecting the voltage of the storage battery. means; calculating means for charging a storage battery for a predetermined period of time and calculating the time required for charging from the voltage change detected by the voltage detecting means; the charging time calculated by the calculating means; and the storing means. Based on the time zone stored in the time zone and the drive start time set in the drive time setting means, find a charging start time at which the electricity rate is the lowest and at which charging is completed by the drive start time of the load; A charger comprising a control means for controlling charging so that charging is started when the time measured by the charging start time reaches the charging start time.
JP1099254A 1989-04-19 1989-04-19 Charger Expired - Lifetime JP2785316B2 (en)

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JPH02280633A true JPH02280633A (en) 1990-11-16
JP2785316B2 JP2785316B2 (en) 1998-08-13

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JPH03104046U (en) * 1990-02-05 1991-10-29
JP2009005450A (en) * 2007-06-20 2009-01-08 Mazda Motor Corp Controller for battery of vehicle
JP2009042877A (en) * 2007-08-07 2009-02-26 Denso Wave Inc Mobile terminal
JP2009095141A (en) * 2007-10-09 2009-04-30 Sumitomo Electric Ind Ltd Power storage apparatus
JP2009118652A (en) * 2007-11-07 2009-05-28 Chugoku Electric Power Co Inc:The Charging system for electric vehicle
JP2009148121A (en) * 2007-12-17 2009-07-02 Denso Corp Charging system for plug-in vehicle
JP2009194958A (en) * 2008-02-12 2009-08-27 Kansai Electric Power Co Inc:The Charging controller and charging system
JP2010104114A (en) * 2008-10-22 2010-05-06 Toyota Motor Corp Controller of vehicle and vehicle
JP2010154646A (en) * 2008-12-25 2010-07-08 Omron Corp Apparatus and method for controlling charge, and program
JP2010534053A (en) * 2007-07-18 2010-10-28 テスラ モーターズ, インコーポレイテッド Battery charging based on cost and life
JP2010259163A (en) * 2009-04-22 2010-11-11 Denso Corp Charging control device and electricity storage system
JP2010268585A (en) * 2009-05-14 2010-11-25 Toyota Industries Corp Vehicle charge control system
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JPS51122733A (en) * 1975-04-21 1976-10-27 Kaname Kubo Method of charging battery for vehicles
JPS60118033A (en) * 1983-11-28 1985-06-25 株式会社三英社製作所 Power distributor circuit for electric demander

Patent Citations (2)

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JPS51122733A (en) * 1975-04-21 1976-10-27 Kaname Kubo Method of charging battery for vehicles
JPS60118033A (en) * 1983-11-28 1985-06-25 株式会社三英社製作所 Power distributor circuit for electric demander

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03104046U (en) * 1990-02-05 1991-10-29
JP2009005450A (en) * 2007-06-20 2009-01-08 Mazda Motor Corp Controller for battery of vehicle
JP2010534053A (en) * 2007-07-18 2010-10-28 テスラ モーターズ, インコーポレイテッド Battery charging based on cost and life
JP2009042877A (en) * 2007-08-07 2009-02-26 Denso Wave Inc Mobile terminal
JP2009095141A (en) * 2007-10-09 2009-04-30 Sumitomo Electric Ind Ltd Power storage apparatus
JP2009118652A (en) * 2007-11-07 2009-05-28 Chugoku Electric Power Co Inc:The Charging system for electric vehicle
JP2009148121A (en) * 2007-12-17 2009-07-02 Denso Corp Charging system for plug-in vehicle
JP2009194958A (en) * 2008-02-12 2009-08-27 Kansai Electric Power Co Inc:The Charging controller and charging system
JP2010104114A (en) * 2008-10-22 2010-05-06 Toyota Motor Corp Controller of vehicle and vehicle
JP2010154646A (en) * 2008-12-25 2010-07-08 Omron Corp Apparatus and method for controlling charge, and program
JP2010259163A (en) * 2009-04-22 2010-11-11 Denso Corp Charging control device and electricity storage system
JP2010268585A (en) * 2009-05-14 2010-11-25 Toyota Industries Corp Vehicle charge control system
US10442302B2 (en) 2009-05-14 2019-10-15 Battelle Memorial Institute Battery charging control methods, electrical vehicle charging methods, battery charging control apparatus, and electrical vehicles
JP2011151891A (en) * 2010-01-19 2011-08-04 Sony Corp Method and apparatus for charging secondary battery
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US8704495B2 (en) 2010-02-26 2014-04-22 Denso Corporation Onboard charging control apparatus for controlling charge to secondary battery
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