JP3693234B2 - Battery pack serial communication device - Google Patents

Battery pack serial communication device Download PDF

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JP3693234B2
JP3693234B2 JP2000219913A JP2000219913A JP3693234B2 JP 3693234 B2 JP3693234 B2 JP 3693234B2 JP 2000219913 A JP2000219913 A JP 2000219913A JP 2000219913 A JP2000219913 A JP 2000219913A JP 3693234 B2 JP3693234 B2 JP 3693234B2
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battery pack
communication
data
specifications
communication device
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JP2002042897A (en
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次郎 渡辺
大崇 森
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Ｎｅｃトーキン栃木株式会社
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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Description

【０００１】
【発明の属する技術分野】
本発明は、電池パック搭載の各種機能とデータを送受信する電池パックシリアル通信装置に関する。
【０００２】
【従来の技術】
図３は電池パックの構成例を示す図であり、１１はセル、１２はモニタ回路、１３は通信制御回路、１４は充放電用ＦＥＴ、１７は通信ライン、１８はバス、１９はコネクタを示す。
【０００３】
電池パックは、例えば図３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通信制御回路１３、充放電を直接制御する充放電用ＦＥＴ１４、外部との接続を行うコネクタ１９等からなる。
【０００４】
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。
【０００５】
通信制御回路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を制御する例えば通信制御ＣＰＵである。
【０００６】
【発明が解決しようとする課題】
図４は電池パック搭載の保護回路制御、残量管理機能などに関するデータを送受信する場合の通信装置について説明するための図であり、２１Ａ〜Ｃは専用アプリケーション、２２Ａ〜Ｃは専用Ｉ／Ｏ通信装置、２３Ａ〜Ｃは電池パックを示す。従来より例えば電池パックの試験を行うために、電池パック搭載の保護回路制御、残量管理機能などに関するデータをシリアル通信で送受信する場合、図４に示すように電池パック２３Ａ〜Ｃのそれぞれのデータ通信仕様毎に専用アプリケーション２１Ａ〜Ｃ、専用Ｉ／Ｏ通信装置２２Ａ〜Ｃを使っていた。そのため、それぞれの電池パック２３Ａ〜Ｃのデータ通信仕様に基づいた専用回路、専用ソフトの開発を必要とし、そのために手間と時間と費用がかかり、無駄が多かった。
【０００７】
【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、電池パックのデータ通信仕様に基づいた専用回路、専用ソフトの開発を必要とせず、それぞれの電池パックの試験を可能とするものである。
【０００８】
そのために本発明は、電池パック搭載の各種機能に関するデータを送受信する電池パックシリアル通信装置であって、電池パックのデータ通信仕様に対応する複数の通信プロトコルと、電池パックのデータ通信仕様を認識する認識手段と、前記認識手段により認識した通信仕様に対応する通信プロトコルを選択して切り換える切り換え制御手段とを備え、前記認識手段により、前記複数の通信プロトコルを電池パックに順序送信していき、正常に通信応答が確認された時点で通信プロトコルを認識決定して、前記電池パックのデータ通信仕様を認識し、異なるデータ通信仕様の電池パックに共通に使用できるようにしたことを特徴とするものである。
【０００９】
【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は本発明に係る電池パックシリアル通信装置の実施の形態を示す図、図２は本発明に係る電池パックシリアル通信装置のプロトコル確認処理の例を説明するための図である。図中、１はアプリケーション、２は通信制御用ＣＰＵ、３はデータ通信仕様認識部、４は通信切り換え制御部、５は通信プロトコル、６はＩ／Ｏインターフェイス、７は入力キー、８は液晶表示器、９Ａ〜Ｃは電池パックを示す。
【００１０】
図１において、アプリケーション１は、電池パック搭載の保護回路制御、残量管理機能などの各種機能に関するデータを送受信して電池パックの試験やデータの設定、更新などを行うパーソナルコンピュータである。
【００１１】
通信制御用ＣＰＵ２は、電池パック搭載の保護回路制御、残量管理機能などの各種機能に関するデータの送受信を行うものであり、Ｉ／Ｏインターフェイス６を通してデータ通信仕様の異なる各電池パック９Ａ〜Ｃが接続される。
【００１２】
通信制御用ＣＰＵ２に対して、入力キー７は、データや指示の入力を行うものであり、液晶表示器８は、入力されたデータの表示、さらには送受信データの表示を行うものである。
【００１３】
通信制御用ＣＰＵ２は、アプリケーション１とＲＳ２３２Ｃを通してデータの送受信を行い、データ通信仕様の異なる電池パック９Ａ〜ＣとＩ／Ｏインターフェイス６を通してそれぞれのデータ通信仕様で通信プロトコルを切り換えてデータの送受信を行う。プロトコルを決定するには、プロトコルベースより電池パックへデータを送信し、電池パックの応答を確認する。例えば図２に示すように電池パックＡに対し、通信制御用ＣＰＵ２内に用意してある複数のプロトコルをある順序で送信していき、正常に通信応答が確認された時点でプロトコルを認識決定する。
【００１４】
そのため、通信制御用ＣＰＵ２は、各電池パック９Ａ〜Ｃのデータ通信仕様に対応した通信プロトコル５と、各電池パック９Ａ〜Ｃのデータ通信仕様を認識するためのデータ通信仕様認識部３と、データ通信仕様認識部３で認識したデータ通信仕様にしたがって通信プロトコル５を切り換える通信切り換え制御部４などを有する。
【００１５】
本発明に係る電池パックシリアル通信装置では、上記のように通信制御用ＣＰＵ２により、データ通信仕様認識部３、通信切り換え制御部４、通信プロトコル５からなるソフトウエア内部のコントロールにより、各電池パック６Ａ〜Ｃの各種データ通信仕様に通信プロトコル５を切り換え、各電池パック６Ａ〜Ｃとデータの送受信を可能とするので、異なるデータ通信仕様の電池パック６Ａ〜Ｃに共通に使用できる。したがって、各電池パックのデータ通信仕様に基づいた専用回路、専用ソフトの開発の必要がなく、共通のハードウエア環境において共通の電池パックシリアル通信装置により電池パックの各種マイコンとデータの送受信が可能となる。
【００１６】
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、電池パックと搭載の保護回路制御、残量管理機能とデータの送受信を行う場合について説明したが、充放電制御その他の機能とデータの送受信を行う場合についても同様であることをはいうまでもない。また、本発明に係る電池パックシリアル通信装置にて選択された通信プロトコルによる電池パックとの通信制御は、アプリケーションでは共通の処理ルーチンで簡単にプログラム可能となっている。
【００１７】
【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、電池パック搭載の各種機能に関するデータを送受信する電池パックシリアル通信装置であって、電池パックのデータ通信仕様に対応する複数の通信プロトコルと、電池パックのデータ通信仕様を認識する認識手段と、認識手段により認識した通信仕様に対応する通信プロトコルを選択して切り換える切り換え制御手段とを備え、認識手段により、複数の通信プロトコルを電池パックに順序送信していき、正常に通信応答が確認された時点で通信プロトコルを認識決定して、電池パックのデータ通信仕様を認識し、異なるデータ通信仕様の電池パックに共通に使用できるようにしたので、電池パックのデータ通信仕様に基づいた専用回路、専用ソフトの開発を必要とせず、それぞれの電池パックの試験やデータの設定、更新が可能となる。
【図面の簡単な説明】
【図１】 本発明に係る電池パックシリアル通信装置の実施の形態を示す図である。
【図２】 本発明に係る電池パックシリアル通信装置のプロトコル確認処理の例を説明するための図である。
【図３】 電池パックの構成例を示す図である。
【図４】 電池パック搭載の保護回路制御、残量管理機能などに関するデータを送受信する場合の通信装置について説明するための図である。
【符号の説明】
１…アプリケーション、２…通信制御用ＣＰＵ、３…データ通信仕様認識部、４…通信切り換え制御部、５…通信プロトコル、６…Ｉ／Ｏインターフェイス、７…入力キー、８…液晶表示器、９Ａ〜Ｃ…電池パック[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a battery pack serial communication device that transmits and receives various functions and data of a battery pack.
[0002]
[Prior art]
FIG. 3 is a diagram showing a configuration example of a battery pack, 11 is a cell, 12 is a monitor circuit, 13 is a communication control circuit, 14 is a charge / discharge FET, 17 is a communication line, 18 is a bus, and 19 is a connector. .
[0003]
For example, as shown in FIG. 3, the battery pack directly controls charging / discharging, a plurality of rechargeable cells 11, a monitor circuit 12 that monitors them, a communication control circuit 13 that performs communication with the outside and controls the battery pack. It comprises a charge / discharge FET 14 and a connector 19 for connection to the outside.
[0004]
The monitor circuit 12 monitors the charge / discharge state of each cell 11, and includes, for example, a voltage detection circuit, a temperature detection circuit having a temperature sensor, and the like. Alternatively, the charge / discharge FET 14 can be controlled to stop the charge / discharge. The monitor circuit 12 may include a circuit that bypasses the charge / discharge current.
[0005]
The communication control circuit 13 is, for example, a communication control CPU that takes in data indicating the charge / discharge state detected by the monitor circuit 12, exchanges data and commands through communication with the outside, and controls the charge / discharge FET 14.
[0006]
[Problems to be solved by the invention]
FIG. 4 is a diagram for explaining a communication device when data related to protection circuit control and remaining amount management function mounted on a battery pack is transmitted / received. 21A to C are dedicated applications, and 22A to C are dedicated I / O communication. Apparatuses 23A to C indicate battery packs. Conventionally, in order to test a battery pack, for example, when data related to protection circuit control and remaining amount management function mounted on the battery pack is transmitted / received by serial communication, each data of the battery packs 23A to 23C as shown in FIG. Dedicated applications 21A-C and dedicated I / O communication devices 22A-C are used for each communication specification. For this reason, it is necessary to develop dedicated circuits and dedicated software based on the data communication specifications of the respective battery packs 23A to 23C, which requires labor, time and cost, and is wasteful.
[0007]
[Means for Solving the Problems]
The present invention solves the above-described problems, and does not require the development of a dedicated circuit and dedicated software based on the data communication specifications of the battery pack, and enables testing of each battery pack.
[0008]
Therefore, the present invention is a battery pack serial communication device that transmits and receives data related to various functions installed in a battery pack, and recognizes a plurality of communication protocols corresponding to the data communication specifications of the battery pack and the data communication specifications of the battery pack. A recognizing unit and a switching control unit that selects and switches a communication protocol corresponding to the communication specification recognized by the recognizing unit, and the recognizing unit sequentially transmits the plurality of communication protocols to the battery pack. When the communication response is confirmed, the communication protocol is recognized and determined, the data communication specification of the battery pack is recognized, and it can be used in common for battery packs of different data communication specifications. is there.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing an embodiment of a battery pack serial communication device according to the present invention, and FIG. 2 is a diagram for explaining an example of protocol confirmation processing of the battery pack serial communication device according to the present invention. In the figure, 1 is an application, 2 is a CPU for communication control, 3 is a data communication specification recognition unit, 4 is a communication switching control unit, 5 is a communication protocol, 6 is an I / O interface, 7 is an input key, and 8 is a liquid crystal display. 9A-C shows a battery pack.
[0010]
In FIG. 1, an application 1 is a personal computer that transmits / receives data related to various functions such as protection circuit control and remaining amount management function mounted on the battery pack, and performs battery pack testing, data setting, and updating.
[0011]
The communication control CPU 2 transmits and receives data related to various functions such as protection circuit control and remaining amount management function mounted on the battery pack, and the battery packs 9A to 9C having different data communication specifications are transmitted through the I / O interface 6. Connected.
[0012]
The input key 7 is used to input data and instructions to the communication control CPU 2, and the liquid crystal display 8 is used to display input data and further display transmission / reception data.
[0013]
The communication control CPU 2 transmits / receives data through the application 1 and the RS 232C, and transmits / receives data by switching the communication protocol according to the respective data communication specifications through the battery packs 9A to C having different data communication specifications and the I / O interface 6. . To determine the protocol, send data from the protocol base to the battery pack and check the battery pack response. For example, as shown in FIG. 2, a plurality of protocols prepared in the communication control CPU 2 are transmitted to the battery pack A in a certain order, and the protocol is recognized and determined when a communication response is normally confirmed. .
[0014]
Therefore, the communication control CPU 2 includes a communication protocol 5 corresponding to the data communication specification of each battery pack 9A to C, a data communication specification recognition unit 3 for recognizing the data communication specification of each battery pack 9A to C, and data A communication switching control unit 4 for switching the communication protocol 5 in accordance with the data communication specification recognized by the communication specification recognition unit 3 is included.
[0015]
In the battery pack serial communication apparatus according to the present invention, each battery pack 6A is controlled by the communication control CPU 2, as described above, by the internal control of the software including the data communication specification recognition unit 3, the communication switching control unit 4, and the communication protocol 5. Since the communication protocol 5 is switched to various data communication specifications of ~ C and data transmission / reception with each of the battery packs 6A ~ C is possible, the battery packs 6A ~ C having different data communication specifications can be used in common. Therefore, there is no need to develop dedicated circuits and software based on the data communication specifications of each battery pack, and data can be sent to and received from various microcomputers in the battery pack using a common battery pack serial communication device in a common hardware environment. Become.
[0016]
In addition, this invention is not limited to the said embodiment, A various deformation | transformation is possible. For example, in the above-described embodiment, the case where the battery pack and the on-board protection circuit control and the remaining amount management function perform data transmission / reception has been described, but the same applies to the case where data transmission / reception is performed with other functions such as charge / discharge control. Needless to say. Further, the communication control with the battery pack by the communication protocol selected by the battery pack serial communication apparatus according to the present invention can be easily programmed by a common processing routine in the application.
[0017]
【The invention's effect】
As is apparent from the above description, according to the present invention, a battery pack serial communication device that transmits and receives data related to various functions of the battery pack, a plurality of communication protocols corresponding to the data communication specifications of the battery pack, Recognizing means for recognizing the data communication specification of the battery pack and a switching control means for selecting and switching the communication protocol corresponding to the communication specification recognized by the recognizing means. When the transmission response is confirmed normally, the communication protocol is recognized and decided, the battery pack data communication specification is recognized, and it can be used in common for battery packs with different data communication specifications. There is no need to develop a dedicated circuit or software based on the data communication specifications of the battery pack. Set of tests and data, update is possible.
[Brief description of the drawings]
FIG. 1 is a diagram showing an embodiment of a battery pack serial communication device according to the present invention.
FIG. 2 is a diagram for explaining an example of a protocol confirmation process of the battery pack serial communication device according to the present invention.
FIG. 3 is a diagram illustrating a configuration example of a battery pack.
FIG. 4 is a diagram for explaining a communication device when transmitting and receiving data related to protection circuit control, remaining amount management function, and the like mounted on a battery pack.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Application, 2 ... CPU for communication control, 3 ... Data communication specification recognition part, 4 ... Communication switching control part, 5 ... Communication protocol, 6 ... I / O interface, 7 ... Input key, 8 ... Liquid crystal display, 9A ~ C ... Battery pack

Claims (1)

電池パック搭載の各種機能に関するデータを送受信する電池パックシリアル通信装置であって、
電池パックのデータ通信仕様に対応する複数の通信プロトコルと、
電池パックのデータ通信仕様を認識する認識手段と、
前記認識手段により認識した通信仕様に対応する通信プロトコルを選択して切り換える切り換え制御手段と
を備え、前記認識手段により、前記複数の通信プロトコルを電池パックに順序送信していき、正常に通信応答が確認された時点で通信プロトコルを認識決定して、前記電池パックのデータ通信仕様を認識し、異なるデータ通信仕様の電池パックに共通に使用できるようにしたことを特徴とする電池パックシリアル通信装置。A battery pack serial communication device for transmitting and receiving data related to various functions of the battery pack,
Multiple communication protocols corresponding to battery pack data communication specifications,
A recognition means for recognizing the data communication specifications of the battery pack;
A switching control unit that selects and switches a communication protocol corresponding to the communication specification recognized by the recognition unit, and sequentially transmits the plurality of communication protocols to the battery pack by the recognition unit, so that a communication response is normally received. A battery pack serial communication device characterized by recognizing and determining a communication protocol at the time of confirmation, recognizing the data communication specification of the battery pack, and being able to be used in common for battery packs of different data communication specifications.
JP2000219913A 2000-07-21 2000-07-21 Battery pack serial communication device Expired - Lifetime JP3693234B2 (en)

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JPWO2012124238A1 (en) * 2011-03-14 2014-07-17 三洋電機株式会社 Power system
EP2669760A1 (en) 2012-03-28 2013-12-04 Hitachi, Ltd. Heterogeneous battery connection device and battery system using same
WO2014155904A1 (en) * 2013-03-29 2014-10-02 パナソニック株式会社 Storage battery pack, electric device, communication control method
KR20150067832A (en) 2013-12-10 2015-06-19 현대자동차주식회사 Updating method for module information in battery module structure
JP7081485B2 (en) * 2016-07-07 2022-06-07 株式会社Ｇｓユアサ Vehicular communication system
KR102490869B1 (en) * 2017-06-08 2023-01-20 삼성에스디아이 주식회사 Apparatus and method for diagnosing battery pack

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