JP2003307557A - Remaining capacity measuring method for storage battery - Google Patents
Remaining capacity measuring method for storage batteryInfo
- Publication number
- JP2003307557A JP2003307557A JP2003033038A JP2003033038A JP2003307557A JP 2003307557 A JP2003307557 A JP 2003307557A JP 2003033038 A JP2003033038 A JP 2003033038A JP 2003033038 A JP2003033038 A JP 2003033038A JP 2003307557 A JP2003307557 A JP 2003307557A
- Authority
- JP
- Japan
- Prior art keywords
- current
- remaining capacity
- storage battery
- voltage
- constant
- 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.)
- Pending
Links
Classifications
-
- 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
Landscapes
- Tests Of Electric Status Of Batteries (AREA)
- Secondary Cells (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、蓄電池の残存容量
を測定する方法に関するものである。TECHNICAL FIELD The present invention relates to a method for measuring the remaining capacity of a storage battery.
【０００２】[0002]
【従来の技術】蓄電池の残存容量を測定する方法として
は、蓄電池の充放電電気量を加除する方法、蓄電池の電
圧を測定する方法、蓄電池の抵抗を測定する方法等があ
り、使用中の蓄電池の残存容量を知る方法として知られ
ている。2. Description of the Related Art As a method of measuring the remaining capacity of a storage battery, there are a method of adding and removing the amount of charge and discharge of the storage battery, a method of measuring the voltage of the storage battery, a method of measuring the resistance of the storage battery, etc. It is known as a method of knowing the remaining capacity of.
【０００３】一方、蓄電池は放置した場合に自己放電に
よりその容量を減少させる。この現象を上記残存容量の
測定法に加味することも知られており、例えば実開昭６
１−１０２９７６号公報等では、自己放電による減少率
を算出しこれを残存容量予測の演算要素とする方法であ
る。On the other hand, the storage battery reduces its capacity by self-discharge when left unattended. It is known to add this phenomenon to the above-mentioned method of measuring the remaining capacity.
Japanese Patent Laid-Open No. 1-102976 discloses a method of calculating a reduction rate due to self-discharge and using it as a calculation element for predicting the remaining capacity.
【０００４】また、鉛蓄電池においては、その開放電圧
を計測しその電圧値から残存容量を予測する方法も知ら
れている。Further, in a lead storage battery, a method of measuring the open circuit voltage and predicting the remaining capacity from the voltage value is also known.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、上記従
来の技術は蓄電池に残存容量を測定する回路を常時接続
し、充放電される蓄電池を常時監視し残存容量を測定す
るものであるが、常時監視する必要はないが、蓄電池を
使用する直前や充放電の繰返した蓄電池が次に重負荷に
使用出来るか否かを測定したいと言う要望が出ている。However, in the above-mentioned conventional technique, a circuit for measuring the remaining capacity is always connected to the storage battery to constantly monitor the charged / discharged storage battery to measure the remaining capacity. Although there is no need to do so, there is a demand to measure whether or not the storage battery that has been charged and discharged repeatedly immediately before using the storage battery can be used next under heavy load.
【０００６】これらの要望に応えるものとして、蓄電池
の開放電圧を測定することで残存容量を測定することが
考えられるも、例えば、充放電直後の蓄電池は分極の影
響でこれら開放電圧は安定せず、即座に残存容量を測定
するとバラツキが大きく、より信頼性を向上させたもの
が望まれている。In order to meet these demands, it is conceivable to measure the remaining capacity by measuring the open circuit voltage of the storage battery. However, for example, in a storage battery immediately after charging / discharging, the open circuit voltage is not stable due to the influence of polarization. However, when the remaining capacity is measured immediately, the variation is large, and it is desired that the reliability is further improved.
【０００７】[0007]
【課題を解決するための手段】本発明は上記要望に応え
るもので、蓄電池に定電流定電圧電源より電流を流した
時の所定時間後の電流値または電圧値で残存容量を測定
するものである。Means for Solving the Problems The present invention meets the above-mentioned needs, and is to measure the remaining capacity by a current value or a voltage value after a predetermined time when a current is supplied from a constant-current constant-voltage power supply to a storage battery. is there.
【０００８】定電流定電圧電源は、一定の電流値または
一定の電圧値以上にはならないようにし、充電初期は定
電流で充電し、充電により蓄電池電圧が上昇した所で定
電圧に切替える電源である。The constant-current constant-voltage power supply is a power supply that does not exceed a certain current value or a certain voltage value, is charged with a constant current in the initial stage of charging, and switches to a constant voltage when the storage battery voltage rises due to charging. is there.
【０００９】所定時間は、任意に設定し得るが、充電の
電流や電圧はやがては一定値に収束するので、その前の
ある時間を設定する必要があること、必要なのは残存容
量を知ることで蓄電池を充電することではないこと等に
より、約３０秒、好ましくは１０秒から１分程度に設定
される。The predetermined time can be set arbitrarily, but since the charging current and voltage eventually converge to a constant value, it is necessary to set a certain time before that, and it is necessary to know the remaining capacity. It is set to about 30 seconds, preferably about 10 seconds to 1 minute, because the storage battery is not charged.
【００１０】[0010]
【作用】蓄電池はその残存容量により定電流定電圧の電
源で充電した場合、電圧の立ち上がり時期や電流の低下
時期を異にする。即ち、残存容量の多い蓄電池は、電源
を入れ電流を流すや否や電圧が上昇し定電圧機能が作用
して充電電流が低下する。一方、残存容量の少ない蓄電
池は多くの電流を受け入れる為、定電流機能が作用し定
電流で長い時間流れ、充電電圧の上昇はなだらかであ
る。これらの現象を捉えることで残存容量を測定するこ
とが出来る。When a storage battery is charged by a constant current / constant voltage power supply due to its remaining capacity, the rising timing of the voltage and the falling timing of the current differ. That is, in a storage battery with a large remaining capacity, as soon as the power is turned on and a current is passed, the voltage rises and the constant voltage function acts to reduce the charging current. On the other hand, a storage battery with a small remaining capacity accepts a large amount of current, so that the constant current function acts and the constant current flows for a long time, and the charging voltage rises gently. The remaining capacity can be measured by capturing these phenomena.
【００１１】[0011]
【発明の実施の形態】実施の形態としての１実施例を説
明する。BEST MODE FOR CARRYING OUT THE INVENTION One example as an embodiment will be described.
【００１２】図１は本発明１実施例のブロック回路図で
ある。１は電流５０Ａ、電圧１４．５Ｖの定電流と定電
圧機能を有する定電流定電圧電源、２は公称容量４８Ａ
Ｈで出力電圧１２Ｖの自動車用の鉛蓄電池、３は測定
部、４は表示部、５はシャント抵抗、６はタイマーであ
る。FIG. 1 is a block circuit diagram of a first embodiment of the present invention. 1 is a constant current constant voltage power supply having a constant current of 50 A and a voltage of 14.5 V and a constant voltage function, 2 is a nominal capacity of 48 A
A lead acid battery for an automobile having an output voltage of 12 V at H, 3 is a measuring unit, 4 is a display unit, 5 is a shunt resistor, and 6 is a timer.
【００１３】残存容量の異なる鉛蓄電池２を定電流定電
圧電源１に接続し、５０Ａの電流で充電をする。この時
の鉛蓄電池に流れる電流と電圧の状況を測定部３で測定
する。そして、タイマー６により電流付与後の所定時間
後の測定値により、予め測定部の記憶回路内に記憶した
電流および電圧と残存容量との関係から測定値より残存
容量を演算し表示部４に表示した。Lead-acid batteries 2 having different remaining capacities are connected to a constant-current / constant-voltage power source 1 and charged with a current of 50A. The state of the current and voltage flowing through the lead storage battery at this time is measured by the measuring unit 3. Then, the timer 6 calculates the remaining capacity from the measured value based on the relationship between the current and voltage stored in the storage circuit of the measuring unit and the remaining capacity, and displays the remaining capacity on the display unit 4 based on the measured value after a predetermined time after the current is applied. did.
【００１４】図２と図３は鉛蓄電池の各残存容量におけ
る電圧と電流の変化を示し、図２は時間と電圧の関係
を、図３は時間と電流の関係を示す図である。2 and 3 show changes in voltage and current at each remaining capacity of the lead storage battery, FIG. 2 is a diagram showing a relationship between time and voltage, and FIG. 3 is a diagram showing a relationship between time and current.
【００１５】鉛蓄電池２は、その残存容量（ＳＯＣ）を
１００％、９５％、９０％、８０％、７０％、５０％に
して、各残存容量における電流付与１０秒後、２０秒
後、３０秒後の電流および電圧の変化は、図示の通り、
残存容量の大きな鉛蓄電池２は最初から定電圧である１
４．５Ｖを示したが、残存容量が８０％以下のものは、
最初は電圧が低く時間と共に上昇した。一方電流は残存
容量の小さい鉛蓄電池２は３０秒時も定電流である５０
Ａを示したが、残存容量の大きい鉛蓄電池２は定電圧機
能が作用し電流が低下した。In the lead storage battery 2, the remaining capacity (SOC) is set to 100%, 95%, 90%, 80%, 70%, 50%, and current is applied at each remaining capacity for 10 seconds, 20 seconds, and 30 seconds. The change in current and voltage after 2 seconds is as shown in the figure.
Lead-acid battery 2 with a large remaining capacity has a constant voltage from the beginning 1
It showed 4.5V, but the one with a residual capacity of 80% or less
Initially the voltage was low and rose over time. On the other hand, the current of the lead storage battery 2 having a small remaining capacity is a constant current even after 30 seconds.
Although A was shown, the lead-acid battery 2 having a large remaining capacity had a constant voltage function and the current decreased.
【００１６】この結果からも明らかな通り、電流付与後
の所定時間の電流と電圧を測定することにより残存容量
を測定することが出来る。As is clear from this result, the remaining capacity can be measured by measuring the current and voltage for a predetermined time after applying the current.
【００１７】実施例では３０秒における電流と電圧の値
から残存容量を測定した。即ち、電流付与後３０秒の時
点において、電圧を見てその値から残存容量を、予め求
めている残存容量と電圧の関係から求めた。例えば、そ
の時の電圧が１４．０８Ｖなら残存容量は７０％である
ので、その値を表示部４に表示した。また、電圧を見た
時に未だ定電圧である１４．０８Ｖである場合は電流を
見て前記同様予め求めている残存容量と電流の関係から
残存容量を測定した。例えばその時の電流が２９．４Ａ
なら残存容量は９０％であるので、その値を表示部４に
表示した。In the examples, the remaining capacity was measured from the values of current and voltage at 30 seconds. That is, at 30 seconds after the application of the current, the voltage was observed, and the remaining capacity was calculated from the value based on the previously calculated relationship between the remaining capacity and the voltage. For example, if the voltage at that time is 14.08 V, the remaining capacity is 70%, so that value is displayed on the display unit 4. In addition, when the voltage was observed to be 14.08 V, which is still a constant voltage, the current was observed and the residual capacity was measured from the previously determined relationship between the residual capacity and the current. For example, the current at that time is 29.4A
Since the remaining capacity is 90%, the value is displayed on the display unit 4.
【００１８】この様にして鉛蓄電池２に電流を流した後
の所定時間経過後の電流または電圧から容易にその蓄電
池の残存容量を求めることが出来る。In this way, the remaining capacity of the lead storage battery 2 can be easily obtained from the current or voltage after a lapse of a predetermined time after passing the current.
【００１９】この方法は、例えば蓄電池を内蔵する電気
機器や機械機具メーカにおいて、その製造中に動作確認
の為に充放電された蓄電池をその直後残存容量を確認し
たい場合等に用いることが出来る。This method can be used, for example, in a manufacturer of electric equipment or machinery having a built-in storage battery, when it is desired to check the remaining capacity of a storage battery that has been charged and discharged to check the operation during its manufacture.
【００２０】また、鉛蓄電池を販売している店頭で実施
することも出来る。顧客へ鉛蓄電池を販売するに当た
り、顧客が望んだ鉛蓄電池を定電流定電圧電源に接続す
ることで３０秒と言う短時間でその鉛蓄電池の残存容量
を精度良く測定出来、その結果、その鉛蓄電池が自動車
へ搭載した後少なくともエンジンの始動に必要な容量が
あるか否かの判断に使用出来る。そしてエンジンを始動
するに十分な容量が残っていない場合は、同種の別の鉛
蓄電池と交換することで顧客に迷惑を掛けることがな
い。Further, it can be carried out at a store selling lead-acid batteries. When selling a lead acid battery to a customer, by connecting the lead acid battery desired by the customer to a constant current and constant voltage power source, the remaining capacity of the lead acid battery can be accurately measured in a short time of 30 seconds. It can be used to determine whether or not the storage battery has at least the capacity necessary to start the engine after it is installed in the vehicle. And if there's not enough capacity left to start the engine, you can replace it with another lead-acid battery of the same type to avoid annoying your customers.
【００２１】更に、自動車に搭載した鉛蓄電池を、キー
によりエンジンを始動した後の所定時間後に同様の方法
で残存容量を測定することが出来る。エンジン始動後、
鉛蓄電池はオルタネータにより充電されるが、このオル
タネータは定電流定電圧電源であるので、例えば鉛蓄電
池の正負極端子に接続されたいずれかの配線にクランプ
メータを配し、エンジン始動後の所定時間例えば３０秒
後の電流を測定することで鉛蓄電池の残存容量を測定す
ることが出来る。このことによって、自動車製造ライン
中の蓄電池の残存容量確認や、自動車修理工場での蓄電
池残存容量確認に利用し得る。Furthermore, the remaining capacity of a lead storage battery mounted on an automobile can be measured by a similar method after a predetermined time has elapsed since the engine was started by a key. After starting the engine,
A lead acid battery is charged by an alternator, but since this alternator is a constant current and constant voltage power source, for example, place a clamp meter on any wire connected to the positive and negative terminals of the lead acid battery, and set a predetermined time after engine start. For example, the remaining capacity of the lead storage battery can be measured by measuring the current after 30 seconds. This can be used for checking the remaining capacity of the storage battery in the automobile manufacturing line and for checking the remaining capacity of the storage battery in the automobile repair shop.
【００２２】また、上記実施例において、必要なら測定
した電流や電圧値に対し温度補正をすることで残存容量
を測定することも出来る。In the above embodiment, the remaining capacity can be measured by performing temperature correction on the measured current and voltage values, if necessary.
【００２３】[0023]
【発明の効果】この様に、本発明によれば定電流定電圧
電源で蓄電池に電流を流した後の所定時間後の電流また
は電圧値から蓄電池の残存容量を簡単に測定することが
出来るとともに、信頼性が向上する等の効果を奏するも
のである。As described above, according to the present invention, the remaining capacity of the storage battery can be easily measured from the current or voltage value after a predetermined time elapses after the current is passed through the storage battery by the constant current constant voltage power supply. The advantages are that reliability is improved.
【図１】 本発明の１実施例ブロック回路図。FIG. 1 is a block circuit diagram of an embodiment of the present invention.
【図２】 電流付与後の時間と電圧の関係図。FIG. 2 is a diagram showing the relationship between time and voltage after applying a current.
【図３】 電流付与後の時間と電流の関係図。FIG. 3 is a diagram showing the relationship between time and current after applying a current.
１…定電流定電圧電源 ２…鉛蓄電池 1. Constant current constant voltage power supply 2 ... Lead acid battery
───────────────────────────────────────────────────── フロントページの続き (72)発明者 松本 健之 福島県いわき市常磐下船尾町杭出作23−６ 古河電池株式会社いわき事業所内 (72)発明者 稲庭 克己 福島県いわき市常磐下船尾町杭出作23−６ 古河電池株式会社いわき事業所内 (72)発明者 加納 哲也 福島県いわき市常磐下船尾町杭出作23−６ 古河電池株式会社いわき事業所内 Ｆターム(参考） 2G016 CA03 CB13 CC06 CC10 CC13 CD14 5H030 AA04 FF41 FF43 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Takeyuki Matsumoto Fukushima Prefecture Iwaki City Joban Shimo-Funao Pile 23-6 Furukawa Battery Co., Ltd., Iwaki Plant (72) Inventor Katsumi Inaba Fukushima Prefecture Iwaki City Joban Shimo-Funao Pile 23-6 Furukawa Battery Co., Ltd., Iwaki Plant (72) Inventor Tetsuya Kano Fukushima Prefecture Iwaki City Joban Shimo-Funao Pile 23-6 Furukawa Battery Co., Ltd., Iwaki Plant F-term (reference) 2G016 CA03 CB13 CC06 CC10 CC13 CD14 5H030 AA04 FF41 FF43
Claims (3)
し、所定時間後の電流値または電圧値で、該蓄電池の残
存容量を測定することを特徴とする蓄電池の残存容量測
定方法。1. A method for measuring the remaining capacity of a storage battery, comprising supplying a current to the storage battery with a constant current / constant voltage power supply and measuring the remaining capacity of the storage battery with a current value or a voltage value after a predetermined time.
になる前までの所定時間であることを特徴とする請求項
１に記載の蓄電池の残存容量測定方法。2. The method for measuring the remaining capacity of a storage battery according to claim 1, wherein the predetermined time is a predetermined time before the current value or the voltage value becomes constant.
秒乃至１分以内であることを特徴とする請求項１または
２に記載の蓄電池の残存容量測定方法。3. The predetermined time is 10 after the current starts to flow.
The method for measuring the remaining capacity of a storage battery according to claim 1 or 2, wherein the method is within a second to a minute.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003033038A JP2003307557A (en) | 2002-02-15 | 2003-02-12 | Remaining capacity measuring method for storage battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002037765 | 2002-02-15 | ||
| JP2002-37765 | 2002-02-15 | ||
| JP2003033038A JP2003307557A (en) | 2002-02-15 | 2003-02-12 | Remaining capacity measuring method for storage battery |
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| DE102008031671A1 (en) | 2007-08-01 | 2009-02-05 | Denso Corp., Kariya-shi | Apparatus for estimating the state of charge of a rechargeable battery charged by a vehicle-mounted power-generating device |
| DE102008031670A1 (en) | 2007-08-01 | 2009-02-05 | Denso Corp., Kariya-shi | Apparatus for estimating the state of charge of a rechargeable battery charged by a vehicle-mounted power generator device |
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| WO2016075746A1 (en) * | 2014-11-10 | 2016-05-19 | 日本たばこ産業株式会社 | Non-combusting flavor inhaler and control method |
| WO2019066228A1 (en) | 2017-09-26 | 2019-04-04 | 주식회사 케이티앤지 | Method for controlling battery power supplied to heater of aerosol generating apparatus, and aerosol generating apparatus |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008031671A1 (en) | 2007-08-01 | 2009-02-05 | Denso Corp., Kariya-shi | Apparatus for estimating the state of charge of a rechargeable battery charged by a vehicle-mounted power-generating device |
| DE102008031670A1 (en) | 2007-08-01 | 2009-02-05 | Denso Corp., Kariya-shi | Apparatus for estimating the state of charge of a rechargeable battery charged by a vehicle-mounted power generator device |
| US8040108B2 (en) | 2007-08-01 | 2011-10-18 | Denso Corporation | Apparatus for estimating state of charge of rechargeable battery charged by vehicle-mounted power generation apparatus |
| US8288996B2 (en) | 2007-08-01 | 2012-10-16 | Denso Corporation | Apparatus for estimating state of charge of rechargeable battery charged by vehicle-mounted power generation apparatus |
| DE102008031671B4 (en) | 2007-08-01 | 2023-11-30 | Denso Corporation | Device for estimating the state of charge of a rechargeable battery being charged by a vehicle-mounted power generating device |
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