JPS63136477A - Device for detecting storage battery life - Google Patents
Device for detecting storage battery lifeInfo
- Publication number
- JPS63136477A JPS63136477A JP61283828A JP28382886A JPS63136477A JP S63136477 A JPS63136477 A JP S63136477A JP 61283828 A JP61283828 A JP 61283828A JP 28382886 A JP28382886 A JP 28382886A JP S63136477 A JPS63136477 A JP S63136477A
- Authority
- JP
- Japan
- Prior art keywords
- storage battery
- voltage
- potential
- cell
- circuit
- 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
- 239000003792 electrolyte Substances 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 claims description 10
- 208000033748 Device issues Diseases 0.000 claims 1
- 239000008151 electrolyte solution Substances 0.000 claims 1
- 230000006866 deterioration Effects 0.000 abstract description 3
- 230000003247 decreasing effect Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract description 2
- 238000007600 charging Methods 0.000 description 10
- 238000010280 constant potential charging Methods 0.000 description 7
- 230000007423 decrease Effects 0.000 description 6
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
-
- 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
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は自動車用蓄電池の′ｒｆ命状態を検出するもの
で、走行時蓄電池に故障モードが発生した場合、運転者
に警報し、エンジンの始動トラブルを未然に防ぐもので
ある。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention detects the 'rf life status of a storage battery for an automobile, and if a failure mode occurs in the storage battery during driving, it will alert the driver and prevent engine starting troubles. This is to prevent this from happening.
従来の技術とその問題貞
最近、自動車技術は過去の走行性能重点主義より出動中
全体としての信頼性の向、トが最重点としてとりあげら
れるようになってきている。Conventional Technologies and Their ProblemsRecently, in automobile technology, the focus has shifted from the past emphasis on driving performance to the overall reliability during dispatch.
即ち、高速道路呵で巾が停滞に遭遇した１ワ会など、エ
ンジンの回転数低下によりオルタネータの出力が低下し
、蓄電池が放電状態になる。最近の巾はエンジンを含む
各種制御機器がコンピュータで制御され、蓄電池沼Ｅが
ある電圧以下になるとＩｆｌ火不能によりエンジンが停
止し、事故の原因となるため、特に蓄電池の信頼性が問
われるようになってきている。That is, when the vehicle encounters a stagnation on a highway, the output of the alternator decreases due to a drop in engine rotational speed, and the storage battery becomes discharged. In recent years, various control devices including the engine are controlled by computers, and if the voltage of the storage battery swamp E drops below a certain level, the engine will stop due to failure of the engine and cause an accident, so the reliability of the storage battery is especially questioned. It is becoming.
これらの蓄電池トラブルを・未然に防止するため、各種
の自動車用Ｍ電池状態検出装置の開発が要求されるよう
になってきている。この要求に対して考案されている検
出装置は主に放電状態の現像べ検出するものばかりで、
この方式による検出装置は特別に放電状態をつくる必要
がおるため、今だ商品化された実績はない。というのは
最近の１１！載オルタネータは性能が向上し、全負荷状
態でエンジンが一定の回転数以下に低下しない限り放電
状態にならないようになっているためである。このため
放電状態を検出しようとすると、どうしても強制的にｉ
荷を投入して蓄電池を放電させる以外になく、これを実
施するためには複雑でコスト高な検出回路が必要どなる
。しかし、充電時の蓄電池状態を検出できれば、走行時
・アイドリンク時は前記したような特別な状態以外、常
に定電圧充電状態となっているため、放電時現象の検出
に比較し、蓄電池の状態を監視し易く、常に蓄電池の状
態を遅延なく検出することが可能となる。In order to prevent these storage battery troubles, there is a growing demand for the development of various types of automobile M battery condition detection devices. The detection devices that have been devised to meet this demand mainly detect the development stage in the discharge state.
Since a detection device using this method requires a special discharge state to be created, it has not yet been commercialized. That's the latest 11! This is because the performance of the installed alternator has improved and it will not go into a discharging state unless the engine speed drops below a certain number under full load conditions. Therefore, if you try to detect the discharge state, you will be forced to
The only option is to charge the battery and discharge it, which requires a complex and costly detection circuit. However, if it is possible to detect the state of the storage battery during charging, it is possible to detect the state of the storage battery compared to the detection of the phenomenon during discharge, since it is always in a constant voltage charging state when driving or idling, except for the special conditions mentioned above. It is easy to monitor the storage battery status, and the status of the storage battery can be detected without delay.
問題点を解決するための１段
本発明は、現在の自動型充電シスデムではエンジン回転
数の低下と全負荷投入時以外、蓄電池の放電状態が発生
づることばなないこと、蓄電池の端子電圧がＶ−Ｅ±Ｉ
Ｒ＜Ｅ：起電力 Ｉ：充電電流 Ｒ：内部抵抗）の式で
示されるように、正０の違いがあるものの充電と放電は
同一の式で現わされること、および容量の低下と内部抵
抗（Ｒ）との間には相関があることに着目したもので、
その要旨は開路時に蓄電池の所定セル電解液電位と等電
位になる分圧点を蓄電池外部に設けた抵抗の分圧回路に
よつＣ構成し、自動車走行時あるいはアイドリンク時で
、かつ蓄電池が定電圧充電領域にある状態において、前
記電解液電位と分圧点電圧との間に一定値以上の電圧差
が発生した時点を蓄電池寿命として！ｌ？報することを
特徴とするものである。One step of the present invention to solve the problems is that in the current automatic charging system, the storage battery never becomes discharged except when the engine speed drops and when full load is applied, and the terminal voltage of the storage battery is V. -E±I
R<E: electromotive force I: charging current R: internal resistance) As shown in the formula, charging and discharging are expressed by the same formula, although there is a difference of positive 0, and the decrease in capacity and internal It focuses on the fact that there is a correlation between resistance (R).
The gist of this is that a voltage dividing point that has the same potential as the predetermined cell electrolyte potential of the storage battery when the circuit is opened is configured by a voltage dividing circuit of a resistor provided outside the storage battery, and when the car is running or idle, and when the storage battery is The life of the storage battery is defined as the point in time when a voltage difference of a certain value or more occurs between the electrolyte potential and the voltage at the dividing point in the constant voltage charging region! l? It is characterized by providing information.
実 施 例
以下、本発明を図面に示した具体的な一実施例に従って
説明する。EXAMPLE Hereinafter, the present invention will be explained according to a specific example shown in the drawings.
図は６Ｌ−ル（１２Ｖ ）よりなる自動車用Ｔｔ雷池１
の中間電位を検出するため、負極端子より４セルロに電
位検出用の電極２を挿入した状態を示している。ＴＩ極
を挿入したのみの状態では電極電位が不安定になるため
、抵抗ｒを通し、常に１１１１Ａ稈度の暗電流を流し、
安定した中間電位約６ｖを１！？でいる。また、図に示
すように、Ｎ電池外部に抵抗Ｒ１〜Ｒ５によって分圧回
路３を構成し、無負荷時Δ点（分圧点）とＢ点（液面電
位）とが等電位となるように可変抵抗Ｒ５で調整できる
ようにしている。ＭＴｉ池の６セル全部が正常であれば
△。The figure shows an automotive Tt lightning pond 1 consisting of 6L (12V).
In order to detect the intermediate potential of , a state in which a potential detection electrode 2 is inserted from the negative terminal to the fourth cell is shown. If only the TI electrode is inserted, the electrode potential becomes unstable, so a dark current of 1111A is always passed through the resistor r.
A stable intermediate potential of about 6V is 1! ? I'm here. In addition, as shown in the figure, a voltage dividing circuit 3 is configured with resistors R1 to R5 outside the N battery, so that point Δ (dividing point) and point B (liquid surface potential) are at equal potential when no load is applied. can be adjusted using variable resistor R5. △ if all 6 cells of the MTi pond are normal.
８間の電位差はＯＶで、もし６セル中１セルでも劣化が
発生し、セル容量が低下すると、開路時ではＡ、８間に
ほとんど差電圧は発生しないものの、充電状態になると
前記した＝Ｅ＋ＩＲの式で示されるように、内部抵抗Ｒ
の変化によ−）てセル電圧も変化し、△、Ｂ間に差電圧
が発生する。内部抵抗Ｒ【よ容量値と反比例するＩＣめ
、１ｙ吊が子分になればＲの値は約２倍になる。つまり
、充電電流が１（△）流れれば故陣セルの電圧はＶ＝Ｅ
＋２ＩＲで、他の５セルはＶ ＝ Ｅ トＩ Ｒとなる
。The potential difference between A and 8 is OV, and if even one of the six cells deteriorates and the cell capacity decreases, there will be almost no voltage difference between A and 8 when it is open, but it will be in a charged state = E + IR. As shown by the formula, the internal resistance R
Due to the change in -), the cell voltage also changes, and a voltage difference occurs between Δ and B. The internal resistance R is inversely proportional to the capacitance value of the IC, so if the 1y capacitance becomes a subordinate, the value of R will be approximately doubled. In other words, if the charging current flows by 1 (△), the voltage of the dead cell will be V = E
+2IR, and the other 5 cells have V = E to I R.
この結果Ａ、Ｂ間のｆｆ？ＭＩＩ （△Ｖ）は△Ｖ ＝
１／２ （ＧＥ＋ ７１ Ｒ） −（３Ｅ＋ ４
１Ｒ）＝−１／２１Ｒ
となり、放電セルの電ＦＥ変化の１／２がΔＢ間に発生
する。また、寿命によっていずれかのセルが微小短絡を
起こし、Ｒの１直が減少しても差電圧が発生し、この△
Ｖが大きい程蓄電池の劣化が進んでいると考えられる。As a result, ff between A and B? MII (△V) is △V =
1/2 (GE+ 71 R) -(3E+ 4
1R)=-1/21R, and 1/2 of the change in electric field of the discharge cell occurs between ΔB. In addition, due to the life cycle, one of the cells may cause a minute short circuit, and even if one cycle of R decreases, a differential voltage will occur, and this △
It is considered that the larger V is, the more deterioration of the storage battery is progressing.
尚、充電初期はＩの変動が大きいが、蓄電池が完全充電
状態となり、定電圧充電領域に入った時点であれば、充
電電流■は減資してほぼ一定となっているため、ＩＲの
要因を正確に検出することができる。よって本発明では
定電圧充電領域でのセル間のバラツキを検出し、蓄電池
寿命として判定する。In addition, at the beginning of charging, I fluctuates greatly, but once the storage battery is fully charged and enters the constant voltage charging region, the charging current ■ has decreased and remains almost constant, so the IR factor cannot be considered. Can be detected accurately. Therefore, in the present invention, variations between cells in the constant voltage charging region are detected and determined as the storage battery life.
図において、正常な蓄電池であれば、開路時、充電時と
もにＡＢ間の差電圧はなく、もし、Φ側３セルに知略セ
ルがあれば、内部抵抗Ｒの減少によって分圧回路り点の
電圧が上背し、また、ｅ側３セルに短絡セルがあれば０
点の電圧が藺下し、ＢＤ間あるいはＢＣ＠の電圧が反転
するので表示部のＬＥＤが点灯する。しかし、前述した
ように、充電中、つまり定電圧充電領域以外では充電電
流変動が大きいため、電圧検出回路４でＬＥＤを０ＦＦ
Ｕ態とし、定電圧充電領域のみでＬＥＤが動作するよう
に構成している。In the figure, if it is a normal storage battery, there will be no voltage difference between A and B both when the circuit is open and when charging.If there is a smart cell among the 3 cells on the Φ side, the voltage at the point of the voltage divider circuit will decrease due to the decrease in internal resistance R. is upside down, and if there is a shorted cell among the 3 cells on the e side, the value is 0.
The voltage at the point drops and the voltage between BD or BC@ is reversed, so the LED in the display section lights up. However, as mentioned above, during charging, that is, outside the constant voltage charging region, charging current fluctuations are large, so the voltage detection circuit 4 turns the LED to 0FF.
The battery is in the U state, and the LED is configured to operate only in the constant voltage charging region.
発明の効果
上述した如く、本発明は自動車走行時、通常の定電圧充
電領域で′Ｍ蓄電池寿命状態を検出できるため、常に遅
延なく蓄電池の劣化情報を警報することができる利点が
ある。Effects of the Invention As described above, the present invention has the advantage of being able to detect the 'M storage battery life state in the normal constant voltage charging region when the vehicle is running, and therefore can always warn of storage battery deterioration information without delay.
図は本発明蓄電池寿命検出装置の一実施例を示す回路構
成図である。
１・・・・・・蓄電池 ２・・・・・・？ｔ２極３
・・・・・・分圧回路The figure is a circuit configuration diagram showing an embodiment of the storage battery life detection device of the present invention. 1...Storage battery 2...? t2 pole 3
・・・・・・Voltage dividing circuit
Claims (1)
圧点を蓄電池外部に設けた抵抗の分圧回路によつて構成
し、自動車走行時あるいはアイドリング時で、かつ蓄電
池が定電圧充電領域にある状態において、前記電解液電
位と分圧点電圧との間に一定値以上の電圧差が発生した
時点を蓄電池寿命として警報することを特徴とする蓄電
池寿命検出装置。A voltage dividing circuit of a resistor is installed outside the storage battery to create a voltage dividing point that has the same potential as the predetermined cell electrolyte potential of the storage battery when the circuit is opened. A storage battery life detection device, characterized in that, in a certain state, a storage battery life detection device issues an alarm as the storage battery life is reached when a voltage difference of a certain value or more occurs between the electrolytic solution potential and the voltage dividing point voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61283828A JPS63136477A (en) | 1986-11-27 | 1986-11-27 | Device for detecting storage battery life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61283828A JPS63136477A (en) | 1986-11-27 | 1986-11-27 | Device for detecting storage battery life |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63136477A true JPS63136477A (en) | 1988-06-08 |
Family
ID=17670682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61283828A Pending JPS63136477A (en) | 1986-11-27 | 1986-11-27 | Device for detecting storage battery life |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63136477A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104199328A (en) * | 2014-08-26 | 2014-12-10 | 国网上海市电力公司 | Current switching device for detecting life of sodium-sulphur battery electrolyte ceramic tube |
| CN109962308A (en) * | 2017-12-25 | 2019-07-02 | 丰田自动车株式会社 | The control method of secondary battery system and secondary cell |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57170464A (en) * | 1981-04-10 | 1982-10-20 | Japan Storage Battery Co Ltd | Detector of electrolyte specific gravity and electrolyte level of storage battery |
| JPS6021177B2 (en) * | 1976-11-30 | 1985-05-25 | ザ・リチヤ−ドソン・カンパニ− | thermoplastic molding composition |
-
1986
- 1986-11-27 JP JP61283828A patent/JPS63136477A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6021177B2 (en) * | 1976-11-30 | 1985-05-25 | ザ・リチヤ−ドソン・カンパニ− | thermoplastic molding composition |
| JPS57170464A (en) * | 1981-04-10 | 1982-10-20 | Japan Storage Battery Co Ltd | Detector of electrolyte specific gravity and electrolyte level of storage battery |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104199328A (en) * | 2014-08-26 | 2014-12-10 | 国网上海市电力公司 | Current switching device for detecting life of sodium-sulphur battery electrolyte ceramic tube |
| CN109962308A (en) * | 2017-12-25 | 2019-07-02 | 丰田自动车株式会社 | The control method of secondary battery system and secondary cell |
| CN109962308B (en) * | 2017-12-25 | 2022-04-08 | 丰田自动车株式会社 | Secondary battery system and control method of secondary battery |
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