JP2000294298A - Power supply unit for several battery packs - Google Patents
Power supply unit for several battery packsInfo
- Publication number
- JP2000294298A JP2000294298A JP11096147A JP9614799A JP2000294298A JP 2000294298 A JP2000294298 A JP 2000294298A JP 11096147 A JP11096147 A JP 11096147A JP 9614799 A JP9614799 A JP 9614799A JP 2000294298 A JP2000294298 A JP 2000294298A
- Authority
- JP
- Japan
- Prior art keywords
- battery pack
- charge
- discharge
- power supply
- master
- 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
Links
- 238000007600 charging Methods 0.000 claims abstract description 55
- 238000007599 discharging Methods 0.000 claims abstract description 43
- 238000004891 communication Methods 0.000 claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 13
- 238000012545 processing Methods 0.000 description 5
- 238000010278 pulse charging Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 102100033007 Carbonic anhydrase 14 Human genes 0.000 description 1
- 101000867862 Homo sapiens Carbonic anhydrase 14 Proteins 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- 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
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
-
- 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
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、充電式の複数のセ
ルと充放電状態の検出や充放電の制御を行うための回路
を内蔵した複数の電池パックによる複数電池パック電源
装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply device for a plurality of battery packs including a plurality of rechargeable cells and a plurality of battery packs having a built-in circuit for detecting a charge / discharge state and controlling charge / discharge.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】一般に
携帯電話やノートパソコン、プレーヤー、デジタルカメ
ラなどの携帯型電子機器には、電源として充電式の複数
のセルを内蔵した電池パックが用いられている。特に携
帯型電子機器においては、通常の商用電源を使用する機
器とは異なり、確実な動作を保証するためには十分な容
量の電池電源が必要である。また、携帯型の電子機器で
あっても、規模が様々であり、電源容量も一律ではない
ため、規模に対応した電源容量を確保するには、複数の
電池パックを直並列接続して用いることが必要になる。
要求に応じて電池パックの個数を変え複数電池パック電
源装置を提供する場合には、各電池パックの接続や全体
の制御が煩雑になるという問題が生じる。2. Description of the Related Art In general, portable electronic devices such as mobile phones, notebook computers, players, digital cameras and the like use a battery pack containing a plurality of rechargeable cells as a power source. I have. In particular, in portable electronic devices, unlike devices that use a normal commercial power supply, a battery power source having a sufficient capacity is required to guarantee reliable operation. Even portable electronic devices vary in scale and power supply capacities are not uniform.To secure power supply capacity corresponding to the scale, use multiple battery packs connected in series and parallel. Is required.
In the case of providing a plurality of battery pack power supply devices by changing the number of battery packs as required, there is a problem that connection of each battery pack and overall control become complicated.
【０００３】[0003]
【課題を解決するための手段】本発明は、上記課題を解
決するものであって、複数の電池パックの接続、制御に
柔軟に対応できるようにするものである。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and is intended to flexibly cope with connection and control of a plurality of battery packs.
【０００４】そのために本発明は、複数の電池パックを
直並列接続して構成される複数電池パック電源装置であ
って、前記複数の電池パックは、それぞれが充電式の複
数のセルと充放電状態の検出や充放電の制御を行うため
の回路を内蔵し、１つをマスタ電池パック、それ以外を
スレーブ電池パックとして接続し、前記マスタ電池パッ
クは、前記スレーブ電池パックに対し通信により前記充
放電状態を示すデータを送信要求して監視し、前記充放
電状態を判定してコマンドを送信し充放電の制御を行
い、前記スレーブ電池パックは、データ要求に応じて充
放電状態を示すデータを送信しコマンドを受信して充放
電を行うことを特徴とするものである。[0004] For this purpose, the present invention relates to a multiple battery pack power supply device configured by connecting a plurality of battery packs in series and parallel, wherein each of the plurality of battery packs includes a plurality of rechargeable cells and a charge / discharge state. A circuit for detecting and controlling charging and discharging is built in, and one is connected as a master battery pack and the other is connected as a slave battery pack. Requests and monitors data indicating the state, monitors the charge / discharge state, sends a command to control charge / discharge, and the slave battery pack transmits data indicating the charge / discharge state in response to the data request And receiving and charging the command.
【０００５】さらに、前記マスタ電池パックは、前記充
放電状態を示すデータとして各セルの電圧を収集し、該
セルの電圧が規定値以上又は規定値以下であることを条
件に該セルを含む電池パックのデータ要求の頻度を高く
し、前記充放電状態を示すデータとして各セルの電圧を
収集し、該セルの電圧が規定値以上又は規定値以下であ
ることを条件に充放電の停止制御を行い、前記充放電状
態を示すデータとして各電池パックの温度を収集し、該
電池パックの温度が規定値以上であることを条件に充放
電の停止制御を行うことを特徴とするものである。Further, the master battery pack collects the voltage of each cell as data indicating the charging / discharging state, and the battery including the cell is provided on condition that the voltage of the cell is equal to or more than a specified value or equal to or less than a specified value. The frequency of pack data requests is increased, the voltage of each cell is collected as data indicating the charge / discharge state, and charge / discharge stop control is performed on condition that the voltage of the cell is equal to or higher than a specified value or equal to or lower than a specified value. The temperature of each battery pack is collected as data indicating the charge / discharge state, and charge / discharge stop control is performed on condition that the temperature of the battery pack is equal to or higher than a specified value.
【０００６】また、複数の電池パックを直並列接続して
構成される複数電池パック電源装置であって、前記複数
の電池パックは、それぞれが充電式の複数のセルと充放
電状態の検出や充放電の制御を行うための回路を内蔵す
ると共に、外周の少なくとも２面に接続コネクタを設け
該コネクタにより各電池パック間を接続して１つをマス
タ電池パック、それ以外をスレーブ電池パックとし、あ
るいは充電式の複数のセルと充放電状態の検出や充放電
の制御を行うための回路を内蔵し、各電池パック間とホ
ストを通信可能に接続すると共に１つをマスタ電池パッ
ク、それ以外をスレーブ電池パックとし、前記マスタ電
池パックは、充放電不能となった電池パックを検出した
場合、当該電池パックを前記ホストに通知し、電池パッ
ク群全体のガスゲージデータを単体の電池パックのガス
ゲージデータとは別に保有して前記ホストの要求に応じ
て送信し、前記ホストは、前記充放電不能となった電池
パックを報知すること、前記マスタ電池パックが前記ホ
ストと通信不能となったとき前記ホストからの設定に基
づきマスタ電池パックとなること、前記マスタ電池パッ
クは、充放電不能となった電池パックを検出した場合、
当該電池パックに直列された電池パック群があるときは
当該電池パック群の充放電を停止させることを特徴とす
るものである。Also, there is provided a plurality of battery pack power supplies configured by connecting a plurality of battery packs in series / parallel, wherein each of the plurality of battery packs includes a plurality of rechargeable cells and a charge / discharge state detection / charge state. A circuit for controlling the discharge is built in, and connection connectors are provided on at least two outer peripheral surfaces, and each battery pack is connected by the connector, and one is a master battery pack, and the other is a slave battery pack, or Built-in rechargeable cells and a circuit for detecting charging / discharging status and controlling charging / discharging, connect each battery pack and the host so that they can communicate with each other, one is the master battery pack, and the other is the slave When the master battery pack detects a battery pack that cannot be charged or discharged, the master battery pack notifies the host of the battery pack and informs the host of the gas pack of the entire battery pack group. The data is held separately from the gas gauge data of a single battery pack and transmitted in response to a request from the host, the host notifies the battery pack that has become unable to be charged and discharged, and the master battery pack When communication with the host becomes impossible, it becomes a master battery pack based on the setting from the host, and when the master battery pack detects a battery pack that has become incapable of charging and discharging,
When there is a battery pack group connected in series to the battery pack, charging / discharging of the battery pack group is stopped.
【０００７】[0007]
【発明の実施の形態】以下、本発明の実施の形態を図面
を参照しつつ説明する。図１は本発明に係る複数電池パ
ック電源装置の実施の形態を示す図、図２は本発明に係
る複数電池パック電源装置を構成する各電池パックの実
施の形態を示す図、図３はコネクタを有する電池パック
の外観及び接続状態を示す図である。図中、１〜４、２
１−１〜２１−３は電池パック、５〜７、１８はバス、
１１はセル、１２はモニタ回路、１３は制御回路、１４
は充放電用ＦＥＴ、１５はプリチャージ用スイッチ素
子、１６、１７はコネクタを示す。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing an embodiment of a multiple battery pack power supply device according to the present invention, FIG. 2 is a diagram showing an embodiment of each battery pack constituting the multiple battery pack power supply device according to the present invention, and FIG. FIG. 2 is a view showing the appearance and connection state of a battery pack having In the figure, 1-4, 2
1-1 to 21-3 are battery packs, 5 to 7 and 18 are buses,
11 is a cell, 12 is a monitor circuit, 13 is a control circuit, 14
Denotes a charge / discharge FET, 15 denotes a precharge switch element, and 16 and 17 denote connectors.
【０００８】図１において、電池パック１〜４は、充電
式の複数のセルと共に、充放電状態の検出及び充放電の
制御が可能な制御回路（ＣＰＵ）や検出回路等を内蔵し
たインテリジェントタイプの電池パックであり、バス５
〜７を介して通信可能に接続することにより複数電池パ
ック電源装置を構成している。このように複数の電池パ
ックを直並列に接続するに当たって、１つの電池パック
１のみマスタ、その他の電池パック２〜４はスレーブと
して、マスタの電池パック１がホスト、他の電池パック
その他の外部装置との通信を行い、また全ての電池パッ
ク１〜４の充放電を統括管理する。そのため、図１
（Ａ）に示す形態では、バス５によりホストなどの外部
装置とマスタの電池パック１とを接続し、これとは別
に、内部のバス６によりマスタの電池パック１と各スレ
ーブの電池パック２〜４とを接続する。また、図１
（Ｂ）に示すようにホストなどの外部装置とマスタの電
池パック１さらには各スレーブの電池パック２〜４とを
共通のバス７で接続してもよい。In FIG. 1, each of battery packs 1 to 4 is an intelligent type including a plurality of rechargeable cells and a control circuit (CPU) and a detection circuit capable of detecting a charge / discharge state and controlling charge / discharge. Battery pack, bus 5
A plurality of battery pack power supply devices are configured by communicably connecting through a plurality of battery pack power supplies. In connecting a plurality of battery packs in series / parallel in this manner, only one battery pack 1 is a master, the other battery packs 2 to 4 are slaves, the master battery pack 1 is a host, another battery pack 1 and other external devices. And the charge and discharge of all the battery packs 1 to 4 are collectively managed. Therefore, FIG.
In the embodiment shown in FIG. 1A, an external device such as a host and the master battery pack 1 are connected by a bus 5, and separately from the master battery pack 1 and the slave battery packs 2 to 2 by an internal bus 6. 4 is connected. FIG.
As shown in (B), an external device such as a host may be connected to the master battery pack 1 and the slave battery packs 2 to 4 by a common bus 7.
【０００９】各電池パック１〜４は、図２に示すように
充電式の複数のセル１１、それらをモニタするモニタ回
路１２、外部との通信や電池パック内の制御を行う制御
回路（ＣＰＵ）１３、充放電を直接制御する充放電用Ｆ
ＥＴ１４、この充放電用ＦＥＴ１４に並列接続されたプ
リチャージ用スイッチ素子１５、外部との接続を行うコ
ネクタ１６、１７等からなる。モニタ回路１２は、各セ
ル１１の充放電状態を監視するものであり、例えば電圧
を検出する回路、さらには温度センサを有する温度検出
回路などからなり、これらにより異常電圧や異常温度を
検出した場合には充放電用ＦＥＴ１４を制御して充放電
を停止させることもできる。また、モニタ回路１２は、
充放電電流をバイパスする回路を有するものであっても
よい。制御回路１３は、モニタ回路１２で検出した充放
電状態を示すデータを取り込み、外部との通信によりデ
ータやコマンドを授受し充放電用ＦＥＴ１４を制御する
例えばＣＰＵである。プリチャージ用スイッチ素子１５
は、電圧の高い方の電池パックから低い方の電池パック
へ一定以上の電流が流れないようにし、電池パック間の
電圧差が所定値以下になったとき各電池パックの充放電
用ＦＥＴ１４をオンにするものである。As shown in FIG. 2, each of the battery packs 1 to 4 has a plurality of rechargeable cells 11, a monitor circuit 12 for monitoring them, and a control circuit (CPU) for communicating with the outside and controlling the inside of the battery pack. 13. Charge / discharge F that directly controls charge / discharge
The ET 14 comprises a precharge switch element 15 connected in parallel to the charge / discharge FET 14, and connectors 16 and 17 for connection to the outside. The monitor circuit 12 monitors the charge / discharge state of each cell 11, and includes, for example, a circuit for detecting a voltage, a temperature detection circuit having a temperature sensor, and the like. In addition, the charge / discharge can be stopped by controlling the charge / discharge FET 14. Also, the monitor circuit 12
It may have a circuit that bypasses the charge / discharge current. The control circuit 13 is, for example, a CPU that takes in data indicating the charge / discharge state detected by the monitor circuit 12, transfers data and commands through external communication, and controls the charge / discharge FET 14. Precharge switch element 15
Prevents a certain amount of current from flowing from the battery pack with the higher voltage to the battery pack with the lower voltage, and turns on the charge / discharge FET 14 of each battery pack when the voltage difference between the battery packs becomes less than a predetermined value. It is to be.
【００１０】外部装置と接続するコネクタ１６、１７
は、一方を雄、他方を雌として例えば図３（Ａ）に示す
ように電池パック２１−１の前面と背面や後面、側面
に、つまり外周の少なくとも２面に、設けられる。この
ようなコネクタ１６、１７により図３（Ｂ）に示すよう
に複数の電池パック２１−１〜２１−３を接続すること
により多段に電池パックを並列接続又は直列接続する。
各電池パックは、マスタモード、スレーブモード、通常
モードを有し、通常モードでは単一の電池パックとして
機能し、他の電池パックの装着が検出された時点で電池
パックは、一方がマスタ、他方がスレーブとなり、マス
タの電池パックが外部のホストとの通信と多段接続され
た電池パック群の充放電を統括制御する。スレーブの電
池パックのコネクタにさらに他の電池パックが装着され
た場合には、スレーブの電池パックは他の電池パックが
装着されたことを検出すると共に、マスタの電池パック
に対してその装着されたことを通知する。また、複数電
池パックの接続方法において、電池パックを直列接続す
る場合、通信ラインにはフォトカプラ等のレベル変換素
子を使用してもよい。Connectors 16 and 17 for connecting to external devices
As shown in FIG. 3A, for example, one is a male and the other is a female, and is provided on the front, back, rear, and side surfaces of the battery pack 21-1, that is, on at least two outer peripheral surfaces. As shown in FIG. 3B, a plurality of battery packs 21-1 to 21-3 are connected by such connectors 16 and 17 to connect the battery packs in multiple stages in parallel or in series.
Each battery pack has a master mode, a slave mode, and a normal mode. In the normal mode, the battery pack functions as a single battery pack. When the attachment of another battery pack is detected, one of the battery packs is the master and the other is the other. Becomes a slave, and a master battery pack controls communication with an external host and charge / discharge of a battery pack group connected in multiple stages. When another battery pack is attached to the connector of the slave battery pack, the slave battery pack detects that the other battery pack is attached, and detects that the other battery pack is attached to the master battery pack. Notify that. In the connection method of a plurality of battery packs, when battery packs are connected in series, a level conversion element such as a photocoupler may be used for a communication line.
【００１１】他の電池パックの装着を検出する手段とし
て、図２においては、コネクタ１７のＢ１端子をグラン
ドに接続し、そのＢ１端子に対応するコネクタ１６のＢ
１Ｓ端子を抵抗にてプルアップ接続している。したがっ
て、例えば電池パックのコネクタに別の電池パックのコ
ネクタを接続したときに、コネクタ１６に他の電池パッ
クのコネクタが装着されると、Ｂ１Ｓ端子がグランドレ
ベルになるので、このことにより他の電池パックの装着
が検出される。電池パックが外部装置と接続されていな
いときは、電池パック内の電池（セル）と直列に接続さ
れている充放電用ＦＥＴ１４をオフとする。電池パック
同士が接続されたときバスを介して通信しマスタの電池
パックがスレーブの電池パックのセル電圧を取得し、パ
ック間の電圧差に応じてプリチャージ用スイッチ素子１
５に流れる電流、充放電用ＦＥＴ１４のオン／オフを制
御する。As means for detecting the mounting of another battery pack, in FIG. 2, the B1 terminal of the connector 17 is connected to the ground, and the B1 terminal of the connector 16 corresponding to the B1 terminal is connected.
The 1S terminal is pulled up by a resistor. Therefore, for example, when a connector of another battery pack is connected to a connector of a battery pack, and a connector of another battery pack is attached to the connector 16, the B1S terminal goes to the ground level. The attachment of the pack is detected. When the battery pack is not connected to an external device, the charge / discharge FET 14 connected in series with the battery (cell) in the battery pack is turned off. When the battery packs are connected to each other, they communicate via the bus, the master battery pack acquires the cell voltage of the slave battery pack, and the precharge switch element 1 according to the voltage difference between the packs.
5, the on / off of the charge / discharge FET 14 is controlled.
【００１２】マスタの電池パック１は、常時時分割で順
次スレーブの電池パック２〜４と通信しコマンドやデー
タの送受信を行う。例えばマスタの電池パック１は、そ
れぞれのスレーブの電池パック２〜４に対しデータ要求
のコマンドを出して充放電状態を示すデータを送信要求
して監視し、充放電状態を判定して制御のコマンドを送
信し充放電の制御を行う。これに対しスレーブの電池パ
ック２〜４は、データ要求のコマンドを受信すると充放
電状態を示すデータをマスタの電池パック１へ送信し、
マスタの電池パック１から制御のコマンドを受信して充
放電の起動、停止制御を行う。マスタの電池パック１で
は、充放電状態を示すデータとして例えば次のように各
電池パックの温度や各セルの電圧を収集し、充放電状態
に応じて通信や充放電を制御する。The master battery pack 1 always communicates with the slave battery packs 2 to 4 in a time-division manner to transmit and receive commands and data. For example, the master battery pack 1 issues a data request command to each of the slave battery packs 2 to 4, requests transmission of data indicating the charge / discharge state, monitors the data, determines the charge / discharge state, and executes a control command. To control charging and discharging. On the other hand, when the slave battery packs 2 to 4 receive the data request command, they transmit data indicating the charge / discharge state to the master battery pack 1,
Upon receiving a control command from the master battery pack 1, charge / discharge start / stop control is performed. The master battery pack 1 collects, for example, the temperature of each battery pack and the voltage of each cell as data indicating the charge / discharge state as follows, and controls communication and charge / discharge according to the charge / discharge state.
【００１３】充電時においては、まず、全電池パックの
各セルの電圧値のうち、最も高い電圧値を規定の電圧値
Ｖ１と比較し、そのセルの電圧値が規定の電圧値Ｖ１以
上の場合には、そのセルを含む電池パックとの通信を他
の電池パックよりも頻繁に行う。このことにより、最も
高い電圧値のセルを集中的に監視する。さらに高い規定
の電圧値Ｖ２と比較し、そのセルの電圧値が規定の電圧
値Ｖ２以上の場合には、そのセルを含む電池パックの充
電を選択的に停止させたり、電池パック群の充電を停止
させる。また、最も高い電圧値のセルを含む電池パック
の充電のみを選択的に停止させて、それ以外の電池パッ
ク群で充電を続け、同様に最も高い電圧値のセルを含む
電池パックから全ての電池パックの充電を停止させるま
で順次充電停止の制御を行うようにしてもよい。At the time of charging, first, the highest voltage value among the voltage values of the cells of all the battery packs is compared with a specified voltage value V1, and if the voltage value of the cell is equal to or higher than the specified voltage value V1, In this case, communication with the battery pack including the cell is performed more frequently than other battery packs. Thereby, the cell having the highest voltage value is intensively monitored. Compared to a higher specified voltage value V2, if the voltage value of the cell is equal to or higher than the specified voltage value V2, charging of the battery pack including the cell is selectively stopped or charging of the battery pack group is stopped. Stop. In addition, only charging of the battery pack including the cell with the highest voltage value is selectively stopped, charging is continued with the other battery pack groups, and all the battery packs including the cell with the highest voltage value are similarly charged. The charging stop control may be sequentially performed until the charging of the pack is stopped.
【００１４】放電時においては、まず、全電池パックの
各セルの電圧値のうち、最も低い電圧値を規定の電圧値
Ｖ３と比較し、そのセルの電圧値が規定の電圧値Ｖ３以
下の場合には、そのセルを含む電池パックとの通信を他
の電池パックよりも頻繁に行う。このことにより、最も
低い電圧値のセルを集中的に監視する。さらに低い規定
の電圧値Ｖ４と比較し、そのセルの電圧値が規定の電圧
値Ｖ４以下の場合には、そのセルを含む電池パックの放
電を選択的に停止させたり、電池パック群の放電を停止
させる。この場合にも、最も低い電圧値のセルを含む電
池パックの放電のみを選択的に停止させて、それ以外の
電池パック群で放電を続け、同様に最も低い電圧値のセ
ルを含む電池パックから全ての電池パックの放電を停止
させるまで順次放電停止の制御を行うようにしてもよ
い。At the time of discharging, first, the lowest voltage value among the voltage values of the cells of all the battery packs is compared with a specified voltage value V3, and when the voltage value of the cell is equal to or less than the specified voltage value V3. In this case, communication with the battery pack including the cell is performed more frequently than other battery packs. Thus, the cell having the lowest voltage value is monitored intensively. Compared to a lower specified voltage value V4, if the voltage value of the cell is equal to or lower than the specified voltage value V4, the discharge of the battery pack including the cell is selectively stopped or the discharge of the battery pack group is stopped. Stop. Also in this case, only the discharge of the battery pack including the cell with the lowest voltage value is selectively stopped, the discharge is continued in the other battery pack groups, and the battery pack including the cell with the lowest voltage value is similarly switched. The control of the discharge stop may be sequentially performed until the discharge of all the battery packs is stopped.
【００１５】電池パック群全体のデータとして、電流に
対しては各列電池パック群に流れる電流をそれぞれ加算
しその結果を電池パック群の電流とし、電圧に対して
は、各行電池パックの電圧を加算しその結果を電池パッ
ク群の電圧とする。さらに、電池パック群の残容量に対
してはｎ個の電池パックを並列接続した場合であれば初
期値として電池パック群のうち最も少ない容量値をｎ倍
して残容量として電池パック群の放電終止までの放電に
より残容量を０にリセットし、その後の充電により電池
パック群全体の電流を加算、放電により電流を減算す
る。また、満充電容量に対して、ｎ個の電池パックを並
列した場合には、初期値としてｎ×設計容量とし、放電
終止から満充電まだの充電を経験後、その積算容量を満
充電容量とする。As the data of the entire battery pack group, the current flowing through each column battery pack group is added to the current, and the result is used as the current of the battery pack group, and the voltage is the voltage of each row battery pack. The result of the addition is defined as the voltage of the battery pack group. Further, when n battery packs are connected in parallel with respect to the remaining capacity of the battery pack group, the smallest capacity value of the battery pack group is multiplied by n as an initial value, and the battery pack group is discharged as the remaining capacity. The remaining capacity is reset to 0 by discharging until the end, and the current of the entire battery pack group is added by charging thereafter, and the current is subtracted by discharging. When n battery packs are arranged in parallel with the full charge capacity, the initial capacity is set to nx design capacity. I do.
【００１６】また、マスタの電池パック１では、充放電
状態を示すデータとして、全ての電池パックの温度デー
タを収集し、全ての電池パックがある所定の温度範囲内
にない場合、つまり所定の温度を超えて温度上昇した電
池パックがある場合には、電池パック群の充放電を停止
させる。この場合にも、異常に温度上昇したその電池パ
ックに対し充放電を停止するコマンドを発行し、その電
池パックのみを選択的に充放電停止させるようにしても
よい。また、マスタの電池パック１は、電池パック群全
体のガスゲージデータを単体の電池パックのガスゲージ
データとは別に保有し、ホストの要求に応じて送信す
る。The master battery pack 1 collects temperature data of all the battery packs as data indicating the charge / discharge state, and when all the battery packs are not within a predetermined temperature range, that is, at a predetermined temperature, If there is a battery pack whose temperature has risen beyond the threshold, charging / discharging of the battery pack group is stopped. In this case as well, a command to stop charging / discharging for the battery pack whose temperature has abnormally risen may be issued to selectively stop charging / discharging only the battery pack. Further, the master battery pack 1 holds gas gauge data of the entire battery pack group separately from gas gauge data of a single battery pack, and transmits it in response to a request from the host.
【００１７】図４は通信フォーマットの例を示す図、図
５はマスタの電池パックとスレーブの電池パックとの通
信例を示す図である。各電池パックには、アドレスが割
り付けられており、例えば図４に示すようにアドレスと
コマンドとデータや、アドレスとコマンド、アドレスと
データを送受信し、各電池パックは、自己のアドレスを
受信することによってそれに続くデータやコマンドを受
信することができる。したがって、マスタとスレーブで
は、例えば図５に示すようにマスタから各スレーブに、
まずアドレスを送付した後、データやコマンドの送受信
を行う。また、図１（Ｂ）に示すようにホストとマスタ
及びスレーブが同一のバスを介して通信する場合には、
ホストとマスタ及び全てのスレーブにアドレスが割り振
られる。そして、マスタが何等かの異常でホストと通信
できなくなった場合には、ホストが、正常に通信できる
スレーブに対し、コマンドを送付しマスタとすることが
できる。マスタとスレーブの通信中にホストから通信要
求（割り込み要求）があった場合、マスタは直ちにスレ
ーブとの通信を中断し、ホストとの通信を行う。ホスト
との通信終了後、マスタはスレーブに対し中断された送
信データについては再送し、中断された受信データにつ
いては再送要求を行う。FIG. 4 is a diagram showing an example of a communication format, and FIG. 5 is a diagram showing an example of communication between a master battery pack and a slave battery pack. An address is assigned to each battery pack. For example, as shown in FIG. 4, an address and a command and data, an address and a command, an address and data are transmitted and received, and each battery pack receives its own address. Can receive subsequent data and commands. Therefore, in the master and the slave, for example, as shown in FIG.
First, after sending the address, data and commands are transmitted and received. When the host communicates with the master and the slave via the same bus as shown in FIG.
Addresses are allocated to the host, master and all slaves. Then, when the master cannot communicate with the host due to some abnormality, the host can send a command to a slave that can communicate normally to be a master. When a communication request (interrupt request) is received from the host during communication between the master and the slave, the master immediately suspends communication with the slave and performs communication with the host. After the communication with the host is completed, the master retransmits the interrupted transmission data to the slave and requests a retransmission of the interrupted reception data.
【００１８】また、ある電池パックが何等かの原因で充
放電不可能となった場合、マスタは、ホストに対しその
電池パックの交換要求の情報を送信する。これによりホ
ストは、表示装置や印刷装置その他の出力装置を介して
交換要求を受けた電池パックを報知出力する。何らかの
故障により充放電できなくなった電池パックは、その電
池パックを含む直列に接続された電池パック群のみを充
放電停止させ、故障からの復帰又は交換された時点でそ
の列の電池パック群を充放電可能とする。その際、他の
列の電池パック群とトータル電圧差がある電圧範囲内に
なったときのみ充放電を開始する。充放電を開始した列
は、他の列の電池パックとの電圧差により電流が流れる
が、この電流が大きいときは充放電できる期間を短く
し、流れる電流が小さくなるにしたがって充放電できる
期間を長くし、流れる電流が０になれば通常の充放電制
御に移行する。When charging / discharging of a certain battery pack becomes impossible for some reason, the master transmits information of a request to replace the battery pack to the host. Thus, the host notifies and outputs the battery pack that has received the replacement request via the display device, the printing device, or another output device. For a battery pack that cannot be charged / discharged due to some kind of failure, only the series connected battery pack group including that battery pack is stopped from charging / discharging, and the battery pack group in that row is charged when the battery pack returns from the failure or is replaced. Discharge is possible. At this time, charging / discharging is started only when the total voltage difference between the battery pack groups in the other rows falls within a certain voltage range. In the column where charging / discharging started, current flows due to the voltage difference from the battery packs in the other columns.When this current is large, the charging / discharging period is shortened, and the charging / discharging period is reduced as the flowing current decreases. When it becomes longer and the flowing current becomes 0, it shifts to normal charge / discharge control.
【００１９】次に、充放電時におけるマスタの電池パッ
クによる処理の例を説明する。図６は充電モードにおけ
るマスタの電池パックによる処理の流れ１例を説明する
ための図、図７は放電モードにおけるマスタの電池パッ
クによる処理の流れの１例を説明するための図である。Next, an example of processing by the master battery pack during charging and discharging will be described. FIG. 6 is a diagram for explaining an example of a process flow by the master battery pack in the charge mode, and FIG. 7 is a diagram for explaining an example of a process flow by the master battery pack in the discharge mode.
【００２０】充電モードにおいては、図６に示すように
各電池パックのデータを時分割で順次収集する（ステッ
プＳ１１）。次に、各電池パックに含まれる各セルの電
圧を設定値Ｖ１と比較し（ステップＳ１２）、設定値Ｖ
１以上の電圧のセルがあるか否かを判定する（ステップ
Ｓ１３）。設定値Ｖ１以上の電圧のセルがある場合に
は、そのセルを含む電池パックとの通信インターバルを
短縮する（ステップＳ１４）。これは、設定値Ｖ１以上
の電圧のセルを含む電池パックとの通信を他の電池パッ
クよりも頻繁に行うようにするためである。In the charging mode, as shown in FIG. 6, data of each battery pack is sequentially collected in a time-division manner (step S11). Next, the voltage of each cell included in each battery pack is compared with the set value V1 (step S12), and the set value V
It is determined whether there is a cell having one or more voltages (step S13). If there is a cell having a voltage equal to or higher than the set value V1, the communication interval with the battery pack including the cell is shortened (step S14). This is because communication with a battery pack including cells having a voltage equal to or higher than the set value V1 is performed more frequently than other battery packs.
【００２１】さらに、各セルの電圧を設定値Ｖ２と比較
し（ステップＳ１５）、設定値Ｖ２以上の電圧のセルが
あるか否かを判定する（ステップＳ１６）。設定値Ｖ２
以上の電圧のセルがない場合、及びステップＳ１３で設
定値Ｖ１以上の電圧のセルがない場合には、設定温度以
上の電池パックがあるか否かを判定し（ステップＳ１
７）、各電池パックの温度が設定温度の範囲内にある場
合には、ステップＳ１１に戻って同様の処理を繰り返し
実行する。Further, the voltage of each cell is compared with the set value V2 (step S15), and it is determined whether or not there is a cell having a voltage higher than the set value V2 (step S16). Set value V2
If there is no cell having the above voltage, or if there is no cell having a voltage equal to or higher than the set value V1 in step S13, it is determined whether there is a battery pack having a temperature equal to or higher than the set temperature (step S1).
7) If the temperature of each battery pack is within the set temperature range, the process returns to step S11 and the same processing is repeatedly executed.
【００２２】しかし、設定値Ｖ２以上の電圧のセルがあ
る場合、あるいは設定温度を越える電池パックがある場
合には、電池パック毎に停止するように設定されている
か否かを判定して（ステップＳ１８）、ＹＥＳの場合に
は、該当する電池パックの充電を停止させ（ステップＳ
１９）、その結果、全電池パックの充電が停止していれ
ば充電を終了とし、そうでなければ、ステップＳ１１に
戻って（ステップＳ２０）同様の処理を繰り返し実行す
る。また、ステップＳ１８で、ＮＯの場合、つまり全電
池パック充電停止の設定の場合には、充電を終了とす
る。However, if there is a cell having a voltage equal to or higher than the set value V2, or if there is a battery pack exceeding the set temperature, it is determined whether or not it is set to stop for each battery pack (step S1). S18) In the case of YES, the charging of the corresponding battery pack is stopped (step S18).
19) As a result, if the charging of all the battery packs is stopped, the charging is terminated. Otherwise, the process returns to step S11 (step S20) and the same processing is repeatedly executed. Also, in the case of NO in step S18, that is, in the case of setting to stop charging of all battery packs, the charging is terminated.
【００２３】なお、充電モードにおいて、電池パックが
パルス充電を行う場合には、マスタからの信号を受けて
全てのスレーブが同じタイミングでパルス充電し、同じ
タイミングでパルス充電を停止する。つまり、全ての電
池パックのパルス充電のタイミングを同期させる。In the charging mode, when the battery pack performs pulse charging, all the slaves receive pulse signals at the same timing in response to a signal from the master and stop pulse charging at the same timing. That is, the timing of pulse charging of all battery packs is synchronized.
【００２４】放電モードにおいては、図７に示すように
各電池パックのデータを時分割で順次収集する（ステッ
プＳ３１）。次に、各電池パックに含まれる各セルの電
圧を設定値Ｖ３と比較し（ステップＳ３２）、設定値Ｖ
３以下の電圧のセルがあるか否かを判定する（ステップ
Ｓ３３）。設定値Ｖ３以下の電圧のセルがある場合に
は、そのセルを含む電池パックとの通信インターバルを
短縮する（ステップＳ３４）。これは、設定値Ｖ３以下
の電圧のセルを含む電池パックとの通信を他の電池パッ
クよりも頻繁に行うようにするためである。In the discharge mode, as shown in FIG. 7, data of each battery pack is sequentially collected in a time-division manner (step S31). Next, the voltage of each cell included in each battery pack is compared with the set value V3 (step S32), and the set value V
It is determined whether there is a cell having a voltage of 3 or less (step S33). If there is a cell having a voltage equal to or lower than the set value V3, the communication interval with the battery pack including the cell is shortened (step S34). This is because communication with a battery pack including a cell having a voltage equal to or lower than the set value V3 is performed more frequently than other battery packs.
【００２５】さらに、各セルの電圧を設定値Ｖ４と比較
し（ステップＳ３５）、設定値Ｖ４以下の電圧のセルが
あるか否かを判定する（ステップＳ３６）。設定値Ｖ４
以下の電圧のセルがない場合、及びステップＳ３３で設
定値Ｖ３以下の電圧のセルがない場合には、設定温度以
上の電池パックがあるか否かを判定し（ステップＳ３
７）、各電池パックの温度が設定温度の範囲内にある場
合には、ステップＳ３１に戻って同様の処理を繰り返し
実行する。Further, the voltage of each cell is compared with the set value V4 (step S35), and it is determined whether or not there is a cell having a voltage lower than the set value V4 (step S36). Set value V4
If there is no cell with the voltage below, or if there is no cell with the voltage below the set value V3 in step S33, it is determined whether there is a battery pack above the set temperature (step S3).
7) If the temperature of each battery pack is within the set temperature range, the process returns to step S31 and the same processing is repeatedly executed.
【００２６】しかし、設定値Ｖ４以下の電圧のセルがあ
る場合、あるいは設定温度を越える電池パックがある場
合には、電池パック毎に停止するように設定されている
か否かを判定して（ステップＳ３８）、ＹＥＳの場合に
は、該当する電池パックの放電を停止させ（ステップＳ
３９）、その結果、全電池パックの放電が停止していれ
ば放電を終了とし、そうでなければ、ステップＳ３１に
戻って（ステップＳ４０）同様の処理を繰り返し実行す
る。また、ステップＳ３８で、ＮＯの場合、つまり全電
池パック放電停止の設定の場合には、放電を終了とす
る。However, if there is a cell having a voltage equal to or lower than the set value V4, or if there is a battery pack exceeding the set temperature, it is determined whether or not it is set to stop for each battery pack (step S1). S38), in the case of YES, the discharge of the corresponding battery pack is stopped (step S38).
39) As a result, if the discharge of all the battery packs is stopped, the discharge is terminated. Otherwise, the process returns to step S31 (step S40) and the same process is repeatedly executed. Further, in the case of NO in step S38, that is, in the case of setting to stop discharging of all battery packs, the discharging is terminated.
【００２７】なお、本発明は、上記実施の形態に限定さ
れるものではなく、種々の変形が可能である。例えば上
記実施の形態では、コネクタを前面と背面に設けたが、
上下左右の側面に設けるようにしてもよいし、並列接続
用のコネクタと直列接続用のコネクタとを設けるように
してもよい。また、ホストとメインの電池パックとの通
信を行ってスレーブの電池パックを監視制御したが、電
池パックを全てスレーブとし、ホストが電池パック群の
充放電制御を統括するように構成してもよいことはいう
までもない。It should be noted that the present invention is not limited to the above embodiment, and various modifications are possible. For example, in the above embodiment, the connectors are provided on the front and the back,
The connector may be provided on the upper, lower, left and right side surfaces, or a connector for parallel connection and a connector for series connection may be provided. In addition, although the communication between the host and the main battery pack is performed to monitor and control the slave battery packs, all the battery packs may be set as slaves, and the host may control the charge / discharge control of the battery pack group. Needless to say.
【００２８】[0028]
【発明の効果】以上の説明から明らかなように、本発明
によれば、複数の電池パックを直並列接続して構成され
る複数電池パック電源装置であって、複数の電池パック
は、それぞれが充電式の複数のセルと充放電状態の検出
や充放電の制御を行うための回路を内蔵し、１つをマス
タ電池パック、それ以外をスレーブ電池パックとして接
続し、マスタ電池パックは、スレーブ電池パックに対し
通信により充放電状態を示すデータを送信要求して監視
し、充放電状態を判定してコマンドを送信し充放電の制
御を行い、スレーブ電池パックは、データ要求に応じて
充放電状態を示すデータを送信しコマンドを受信して充
放電を行うので、電池パックの増減しても基本的な充放
電の制御を変えることなくスレーブ電池パックの数の増
減として対応することができる。As is apparent from the above description, according to the present invention, there is provided a multiple battery pack power supply device configured by connecting a plurality of battery packs in series / parallel, wherein each of the plurality of battery packs is A plurality of rechargeable cells and a circuit for detecting charging / discharging state and controlling charging / discharging are built in. One is connected as a master battery pack, and the other is connected as a slave battery pack. Requests transmission of data indicating the charging / discharging state by communication to the pack, monitors it, determines the charging / discharging state, sends a command, controls charging / discharging, and sets the slave battery pack in the charging / discharging state according to the data request. Is transmitted and a command is received to perform charging / discharging, so even if the number of battery packs increases / decreases, the number of slave battery packs can be increased / decreased without changing basic charge / discharge control. Door can be.
【００２９】また、マスタ電池パックで、充放電状態を
示すデータとして各セルの電圧を収集し、該セルの電圧
が規定値以上又は規定値以下であることを条件に該セル
を含む電池パックのデータ要求の頻度を高くしたり、充
放電の停止制御を行ったり、充放電状態を示すデータと
して各電池パックの温度を収集し、該電池パックの温度
が規定値以上であることを条件に充放電の停止制御を行
うので、全ての電池パックの充放電の統括管理を容易に
行うことができる。さらに、ホストと接続してホストか
らマスタとスレーブを設定したり、全電池パックをスレ
ーブとして制御することによりホストからの充放電の統
括管理を容易に行うこともできる。しかも、コネクタに
より電池パック間を接続することにより、電池パックの
追加、交換等を容易に行うことができる。In the master battery pack, the voltage of each cell is collected as data indicating the charge / discharge state, and the battery pack including the cell is provided on condition that the voltage of the cell is equal to or more than a specified value or equal to or less than a specified value. Increasing the frequency of data requests, controlling charging / discharging, collecting the temperature of each battery pack as data indicating the charging / discharging state, and satisfying the condition that the temperature of the battery pack is equal to or higher than a specified value. Since the stop control of the discharge is performed, the integrated management of the charge and discharge of all the battery packs can be easily performed. Furthermore, by connecting to the host and setting the master and slave from the host, or by controlling all the battery packs as slaves, it is possible to easily perform the overall management of charging and discharging from the host. In addition, by connecting the battery packs with the connector, it is possible to easily add or replace the battery packs.
【図１】 本発明に係る複数電池パック電源装置の実施
の形態を示す図である。FIG. 1 is a diagram showing an embodiment of a multiple battery pack power supply device according to the present invention.
【図２】 本発明に係る複数電池パック電源装置を構成
する各電池パックの実施の形態を示す図である。FIG. 2 is a diagram showing an embodiment of each battery pack constituting the multiple battery pack power supply device according to the present invention.
【図３】 コネクタを有する電池パックの外観及び接続
状態を示す図である。FIG. 3 is a diagram showing an appearance and a connection state of a battery pack having a connector.
【図４】 通信フォーマットの例を示す図である。FIG. 4 is a diagram illustrating an example of a communication format.
【図５】 マスタの電池パックとスレーブの電池パック
との通信例を示す図である。FIG. 5 is a diagram illustrating an example of communication between a master battery pack and a slave battery pack.
【図６】 充電モードにおけるマスタの電池パックによ
る処理の流れ１例を説明するための図である。FIG. 6 is a diagram illustrating an example of a process flow by a master battery pack in a charging mode.
【図７】 放電モードにおけるマスタの電池パックによ
る処理の流れの１例を説明するための図である。FIG. 7 is a diagram for explaining an example of a flow of processing by a master battery pack in a discharge mode.
１…１〜４、２１−１〜２１−３…電池パック、５〜
７、１８…バス、１１…セル、１２…モニタ回路、１３
…制御回路、１４…充放電用ＦＥＴ、１５…プリチャー
ジ用スイッチ素子、１６、１７…コネクタ1 ... 1 to 4, 21-1 to 21-3 ... Battery pack, 5
7, 18 bus, 11 cell, 12 monitor circuit, 13
... Control circuit, 14 ... Charge / discharge FET, 15 ... Precharge switch element, 16, 17 ... Connector
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 5G003 AA01 BA03 BA04 CA14 CB01 CC02 DA04 DA13 5H020 AA04 AS06 AS13 AS15 CC06 CC41 5H030 AA03 AA04 AA08 AS06 AS11 BB01 BB21 DD08 FF22 FF42 FF44 FF51 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5G003 AA01 BA03 BA04 CA14 CB01 CC02 DA04 DA13 5H020 AA04 AS06 AS13 AS15 CC06 CC41 5H030 AA03 AA04 AA08 AS06 AS11 BB01 BB21 DD08 FF22 FF42 FF44 FF51
Claims (13)
される複数電池パック電源装置であって、前記複数の電
池パックは、それぞれが充電式の複数のセルと充放電状
態の検出や充放電の制御を行うための回路を内蔵し、１
つをマスタ電池パック、それ以外をスレーブ電池パック
として接続し、前記マスタ電池パックは、前記スレーブ
電池パックに対し通信により前記充放電状態を示すデー
タを送信要求して全体のデータを管理し、前記充放電状
態を判定してコマンドを送信し充放電の制御を行い、前
記スレーブ電池パックは、データ要求に応じて充放電状
態を示すデータを送信しコマンドを受信して充放電を行
うことを特徴とする複数電池パック電源装置。1. A plurality of battery pack power supply devices configured by connecting a plurality of battery packs in series / parallel, wherein each of the plurality of battery packs includes a plurality of rechargeable cells and a charge / discharge state detection / charge / discharge state. Built-in circuit for controlling discharge
One is connected as a master battery pack, and the other is connected as a slave battery pack, and the master battery pack manages the entire data by requesting the slave battery pack to transmit data indicating the charge / discharge state by communication, Charging and discharging state is determined, a command is transmitted to control charging and discharging, and the slave battery pack transmits data indicating the charging and discharging state in response to a data request, receives the command, and performs charging and discharging. A plurality of battery pack power supplies.
態を示すデータとして各セルの電圧を収集し、該セルの
電圧が規定値以上又は規定値以下であることを条件に該
セルを含む電池パックのデータ要求の頻度を高くするこ
とを特徴とする請求項１記載の複数電池パック電源装
置。2. The master battery pack collects a voltage of each cell as data indicating the charge / discharge state, and includes a battery including the cell on condition that the voltage of the cell is equal to or higher than a specified value or equal to or lower than a specified value. 2. The multiple battery pack power supply device according to claim 1, wherein the frequency of pack data requests is increased.
態を示すデータとして各セルの電圧を収集し、該セルの
電圧が規定値以上又は規定値以下であることを条件に充
放電の停止制御を行うことを特徴とする請求項１記載の
複数電池パック電源装置。3. The master battery pack collects the voltage of each cell as data indicating the charge / discharge state, and controls the stop of charge / discharge on condition that the voltage of the cell is equal to or more than a specified value or equal to or less than a specified value. The power supply device for a plurality of battery packs according to claim 1, wherein
態を示すデータとして各電池パックの温度を収集し、該
電池パックの温度が規定値以上であることを条件に充放
電の停止制御を行うことを特徴とする請求項１記載の複
数電池パック電源装置。4. The master battery pack collects the temperature of each battery pack as data indicating the charge / discharge state, and performs a charge / discharge stop control on condition that the temperature of the battery pack is equal to or higher than a specified value. The multiple battery pack power supply device according to claim 1, wherein:
される複数電池パック電源装置であって、前記複数の電
池パックは、それぞれが充電式の複数のセルと充放電状
態の検出や充放電の制御を行うための回路を内蔵すると
共に、外周の少なくとも２面に接続コネクタを設け該コ
ネクタにより各電池パック間を接続して１つをマスタ電
池パック、それ以外をスレーブ電池パックとし、前記マ
スタ電池パックは、前記スレーブ電池パックに対し通信
により前記充放電状態を示すデータを送信要求して全体
のデータを管理し、前記充放電状態を判定してコマンド
を送信し充放電の制御を行い、前記スレーブ電池パック
は、データ要求に応じて充放電状態を示すデータを送信
しコマンドを受信して充放電を行うことを特徴とする複
数電池パック電源装置。5. A multiple battery pack power supply device configured by connecting a plurality of battery packs in series and parallel, wherein each of the plurality of battery packs includes a plurality of rechargeable cells and a charge / discharge state detection / charge / discharge state. A circuit for controlling discharge is built in, connection connectors are provided on at least two outer peripheral surfaces, and the battery packs are connected by the connectors. One is a master battery pack, and the other is a slave battery pack. The master battery pack manages the entire data by requesting the slave battery pack to transmit the data indicating the charge / discharge state by communication, determines the charge / discharge state, transmits a command, and controls the charge / discharge. A plurality of battery pack power supply units, wherein the slave battery packs perform charging and discharging by transmitting data indicating a charging / discharging state in response to a data request and receiving a command. Place.
される複数電池パック電源装置であって、前記各電池パ
ックは、充電式の複数のセルと充放電状態の検出や充放
電の制御を行うための回路を内蔵し、各電池パック間と
ホストを通信可能に接続すると共に１つをマスタ電池パ
ック、それ以外をスレーブ電池パックとし、前記マスタ
電池パックは、前記スレーブ電池パックに対し通信によ
り前記充放電状態を示すデータを送信要求して全体のデ
ータを管理し、前記充放電状態を判定してコマンドを送
信し充放電の制御を行い、前記スレーブ電池パックは、
データ要求に応じて充放電状態を示すデータを送信しコ
マンドを受信して充放電を行うことを特徴とする複数電
池パック電源装置。6. A multiple battery pack power supply device configured by connecting a plurality of battery packs in series and parallel, wherein each of the battery packs includes a plurality of rechargeable cells and detection of charge / discharge state and control of charge / discharge. And a host for communication between each battery pack and the host, and one as a master battery pack and the other as a slave battery pack, and the master battery pack communicates with the slave battery pack. By requesting transmission of data indicating the charge / discharge state and managing the entire data, determining the charge / discharge state, transmitting a command and controlling charge / discharge, the slave battery pack includes:
A multiple battery pack power supply device, which transmits data indicating a charge / discharge state in response to a data request, receives a command, and performs charge / discharge.
なった電池パックを検出した場合、当該電池パックを前
記ホストに通知し、前記ホストは、前記充放電不能とな
った電池パックを報知することを特徴とする請求項６記
載の複数電池パック電源装置。7. The master battery pack, when detecting a battery pack that cannot be charged or discharged, notifies the host of the battery pack, and the host reports the battery pack that cannot be charged or discharged. 7. The multiple battery pack power supply device according to claim 6, wherein:
全体のガスゲージデータを単体の電池パックのガスゲー
ジデータとは別に保有し、前記ホストの要求に応じて送
信することを特徴とする請求項６記載の複数電池パック
電源装置。8. The master battery pack holds gas gauge data of the entire battery pack group separately from gas gauge data of a single battery pack, and transmits the gas gauge data in response to a request from the host. 7. The multiple battery pack power supply device according to 6.
電池パックが前記ホストと通信不能となったとき前記ホ
ストからの設定に基づきマスタ電池パックとなることを
特徴とする請求項６記載の複数電池パック電源装置。9. The multiple battery pack according to claim 6, wherein the slave battery pack becomes a master battery pack based on a setting from the host when the master battery pack cannot communicate with the host. Power supply.
となった電池パックを検出した場合、当該電池パックに
直列された電池パック群があるときは当該電池パック群
の充放電を停止させることを特徴とする請求項１又は６
記載の複数電池パック電源装置。10. The master battery pack, when detecting a battery pack that cannot be charged or discharged, stops charging and discharging the battery pack group if there is a battery pack group connected in series to the battery pack. 7. The method according to claim 1, wherein:
A multiple battery pack power supply as described.
成される複数電池パック電源装置であって、前記各電池
パックは、充電式の複数のセルと充放電状態の検出や充
放電の制御を行うための回路を内蔵し、各電池パック間
とホストを通信可能に接続し、前記ホストより前記各電
池パックに対し通信により前記充放電状態を示すデータ
を送信要求して全体のデータを管理することにより、前
記充放電状態を判定してコマンドを送信し充放電の制御
を行い、前記各電池パックは、データ要求に応じて充放
電状態を示すデータを送信しコマンドを受信して充放電
を行うことを特徴とする複数電池パック電源装置。11. A multiple battery pack power supply device configured by connecting a plurality of battery packs in series and parallel, wherein each of the battery packs includes a plurality of rechargeable cells and detection of charge / discharge state and control of charge / discharge. And a host for communication between the battery packs and a host, and requests transmission of data indicating the charge / discharge state by communication from the host to the battery packs to manage the entire data. By performing the charge / discharge control by determining the charge / discharge state and transmitting a command, each of the battery packs transmits data indicating the charge / discharge state in response to a data request, receives the command, and performs the charge / discharge. A plurality of battery pack power supplies.
容量値の個数倍により残容量を求め、充放電電流に基づ
き加減算して残容量を管理することを特徴とする請求項
１、５、６又は１１のいずれかに記載の複数電池パック
電源装置。12. The method according to claim 1, wherein the remaining capacity is calculated by multiplying the smallest capacity value by the number of times as the entire data, and the remaining capacity is managed by adding or subtracting based on the charging / discharging current. 12. The multiple battery pack power supply device according to any one of 11.
ル変換素子を用いて接続することを特徴とする請求項
１、５、６又は１１のいずれかに記載の複数電池パック
電源装置。13. The multiple battery pack power supply device according to claim 1, wherein a communication line of the battery pack is connected using a level conversion element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09614799A JP3405526B2 (en) | 1999-04-02 | 1999-04-02 | Multiple battery pack power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09614799A JP3405526B2 (en) | 1999-04-02 | 1999-04-02 | Multiple battery pack power supply |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000294298A true JP2000294298A (en) | 2000-10-20 |
| JP3405526B2 JP3405526B2 (en) | 2003-05-12 |
Family
ID=14157279
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP09614799A Expired - Lifetime JP3405526B2 (en) | 1999-04-02 | 1999-04-02 | Multiple battery pack power supply |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3405526B2 (en) |
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| KR102082382B1 (en) | 2015-08-19 | 2020-02-27 | 주식회사 엘지화학 | Multi battery pack apparatus and control method for charging the same |
| KR20170022162A (en) | 2015-08-19 | 2017-03-02 | 주식회사 엘지화학 | Multi battery pack apparatus and method of controlling the same |
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