JPS5956177A - Display device for remaining capacity of battery - Google Patents
Display device for remaining capacity of batteryInfo
- Publication number
- JPS5956177A JPS5956177A JP57167078A JP16707882A JPS5956177A JP S5956177 A JPS5956177 A JP S5956177A JP 57167078 A JP57167078 A JP 57167078A JP 16707882 A JP16707882 A JP 16707882A JP S5956177 A JPS5956177 A JP S5956177A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- temperature
- voltage
- amplifier
- remaining capacity
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/374—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with means for correcting the measurement for temperature or ageing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/3644—Constructional arrangements
- G01R31/3647—Constructional arrangements for determining the ability of a battery to perform a critical function, e.g. cranking
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Tests Of Electric Status Of Batteries (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はバッテリの残存容量の表示装置、さらに詳しく
いえば、バッテリ液の温度変化に対する補償をしたバッ
テリの残存容量の表示装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a display device for displaying remaining capacity of a battery, and more particularly, to a display device for displaying remaining capacity of a battery that compensates for changes in temperature of battery fluid.
バッテリの端子電圧■は、電流１が流れるとバッテリの
内部抵抗Ｒにより、無釣荷硝子電圧Ｅに比べ１・Ｒ分だ
け低くなる（Ｖ＝Ｅ−１・Ｒ）。When the current 1 flows, the battery terminal voltage (2) becomes lower than the unloaded glass voltage E by 1.R due to the internal resistance R of the battery (V=E-1.R).
このため、バッテリの残存容量の表示装置は電ｌ＃Ｌ■
を検出して電圧降下分だけ増幅する補止がされていた。Therefore, the display device for displaying the remaining capacity of the battery is
A compensation method was used to detect the voltage drop and amplify it by the voltage drop.
しかしながら、バッテリの内部抵抗Ｒはバッテリ液の液
温により大きく影響され、冬期とｙ期では表示に誤差が
生じてしまいハ・／テリの残存容量をつねに正確に表示
することは難しかった。However, the internal resistance R of the battery is greatly affected by the temperature of the battery fluid, and errors occur in the display during the winter and season, making it difficult to always accurately display the remaining capacity of the battery.
感熱素子を用いて温度補償をしている装置としては、特
公昭５６−５３７°０３号［蓄電池の残存容量表示計」
がある。この表示計は通電電気けに応して電位が変化す
る電位記憶素子に、蓄電池の放電電流に比例した電流を
通電し、電位記１ａ素子の電位で表示δ１を振らせる構
成であり蓄電池の残存容量は満充電状態から外部回Ｉｌ
＆を通して放電消費される放電容量を差し引いたものに
、さらに電位記憶素子の陽陰極間に感熱素子を介挿し、
周囲温度に対する蓄電池の自己放電量に応じて當時電位
記１ａ素子に感メ：！）素子を介して放電することによ
り、放置時における自己Ｈｋ電量を考慮して、正確な蓄
電池の残存容量を表示しようとするものであり、バッテ
リの液の温度変化による内部抵抗の変化に起因する表示
誤差までは嵩慮されていない。An example of a device that uses a heat-sensitive element to compensate for temperature is Special Publication No. 56-537°03 [Storage Battery Remaining Capacity Indicator]
There is. This display meter has a configuration in which a current proportional to the discharge current of the storage battery is passed through a potential storage element whose potential changes in response to energized electricity, and the display δ1 changes depending on the potential of the potential storage element 1a. Capacity changes from fully charged state to external circuit Il
After subtracting the discharge capacity consumed by discharge through &, a heat-sensitive element is further inserted between the anode and cathode of the potential storage element,
Depending on the amount of self-discharge of the storage battery with respect to the ambient temperature, the current potential of the 1a element is measured:! ) By discharging through the device, it attempts to display the accurate remaining capacity of the storage battery by taking into account the self-Hk charge when left unused. No consideration is given to display errors.
本発明の目的Ｃ１１、バッテリ液の温度変化に対する補
１ｇをして止（准な残存容♀を表示するごとができるバ
ッテリの残存容けの表示装置ａを提供するごとにある。An object C11 of the present invention is to provide a battery remaining capacity display device a that can compensate for changes in the temperature of the battery fluid and display an approximate remaining capacity.
前記目的を達成するために本発明によるバッテリの残存
容量表示装置は、バッテリの端子に流れる電流を電圧の
形で検出する電流検出器と、前記電流検出器で検出され
た電圧を前記バッテリの内部抵抗による電圧降下に相当
する分だけ増幅する増幅器と、前記バッテリの端子電圧
に前記増幅器の出力を加嘗−する加算回路と、前記加算
回路の出力を表示する表示部とからなるバッテリの残存
容量表示装置において、前記バッテリのバッテリ液の温
度を検出する感熱素子を設け、前記感熱素子により検出
したバッテリ液温に対応して前記増幅器の増幅度を変化
さ・口るように構成されている。In order to achieve the above object, a battery remaining capacity display device according to the present invention includes a current detector that detects the current flowing through the terminals of the battery in the form of voltage, and a voltage detected by the current detector that is detected inside the battery. The remaining capacity of the battery, which is comprised of an amplifier that amplifies the voltage by an amount corresponding to the voltage drop caused by the resistance, an adder circuit that adds the output of the amplifier to the terminal voltage of the battery, and a display section that displays the output of the adder circuit. The display device is provided with a heat sensitive element that detects the temperature of the battery fluid of the battery, and is configured to change the amplification degree of the amplifier in response to the temperature of the battery fluid detected by the heat sensitive element.
前記構成によれば本発明の目的心、１完全に達成できる
。According to the above configuration, the objective of the present invention can be completely achieved.
以下、図面等を参照して本発明をさらに８’Ｐ Ｌ、
＜説明する。Hereinafter, the present invention will be further described with reference to the drawings and the like.
<Explain.
第１図は本発明によるバッテリの残存８１１１表示装置
の実施例を示すＭｖｈ図である。FIG. 1 is an Mvh diagram showing an embodiment of the battery remaining 8111 display device according to the present invention.
バッテリＢの１ｊｌＬｆ−からは回路駆動用の電圧が三
１瑞子レギｚ ｌ／−タＩＣ５を介して供給されている
。A voltage for driving the circuit is supplied from the battery B 1jlLf- via the 31st Mizuko regulator IC5.
三端子レギュレータＩＣ５は回路に正電動作をさゼるた
めに必要な電圧を与えるための定電圧源である。抵抗Ｒ
１，ツェナダイオ−１°Ｚからなる回路部は充電直後等
に発生ずる設定電圧よりＪｌｉい電月−分をカットする
ためのものである。The three-terminal regulator IC5 is a constant voltage source for providing the voltage necessary for positive current operation to the circuit. Resistance R
1. The circuit section consisting of the Zener diode 1°Z is for cutting off the voltage that is lower than the set voltage that occurs immediately after charging.
電流検出器ＳはバッテリＢのＭｌｊ、ｌ子に設けられて
おり、バッテリＢの端子に流れる電流を電ＩＦの形で検
出するだめのものである。The current detector S is provided at Mlj and l terminals of battery B, and is used to detect the current flowing to the terminals of battery B in the form of a current IF.
増幅器１は抵抗Ｒ２〜Ｒ５、：Ｉ ７デンーリ゛ｃ２゜
Ｃ３，サーミスタＴ１１． 、 Ｔｌ１２とから構成さ
れており、電流検出器Ｓで検出さ４１だ電ＩＬを増幅′
４る働きをする。Ｒ３・Ｃ３，Ｒ２・Ｃ２は電流検出器
Ｓで検出された電圧を平Ｙｋ化するためのものである。Amplifier 1 includes resistors R2 to R5, I7 resistor C2C3, thermistor T11. , Tl12, and amplifies the current IL detected by the current detector S.
4. R3.C3 and R2.C2 are for normalizing the voltage detected by the current detector S to Yk.
サーミスタＴｌ１ｌ、ＴＨ２は温度の上昇とともに抵抗
が減少する負の温度係数を有する感！：ハ素子であり、
熱結合させバッテリ液の温度を検出しやすい形で取り伺
けられている。このため、バッテリ液温か低いときには
抵抗が大きくなり、オペアンプＩＣ２の増幅度が増加し
、バッテリ液温か高いときにむ、１抵抗が小さくなり、
オペアンプＩＣ２の増幅度が減少する。Thermistors Tl1l and TH2 have a negative temperature coefficient, meaning that their resistance decreases as the temperature rises! :Ha element,
The temperature of the battery fluid can be easily detected by thermally bonding it. Therefore, when the battery liquid temperature is low, the resistance increases and the amplification degree of the operational amplifier IC2 increases, and when the battery liquid temperature is high, the resistance becomes smaller.
The amplification degree of operational amplifier IC2 decreases.
加算回＆１８２はオペアンプ＋Ｃ２，抵抗Ｒ６〜Ｒ９゜
コンデンサＣ４とから構成されている。増幅器２はバッ
テリＢの端子電圧および増幅器１の出力が接続されてお
り、バッチＩＪ １３の端子電圧に温度軸正分の電圧を
加えたものを出力している。The addition circuit &182 is composed of an operational amplifier +C2, resistors R6 to R9, and a capacitor C4. The amplifier 2 is connected to the terminal voltage of the battery B and the output of the amplifier 1, and outputs the terminal voltage of the batch IJ 13 plus a temperature axis positive voltage.
表示器３ばオペアンプＩＣ３１１Ｃ４、抵抗Ｒｉｏ〜Ｒ
１８，１−ランジスタＴｒ、メータＭとから構成されて
いる。オペアンプＩＣ３はオペアンプＩＣ，を動作させ
るために必要な定電圧源である。オペアンプＩＣ４ばオ
ペアンプＩＣ２とオペアンプＩＣ３の出力電圧の差を取
り出して、トランジスタ′１゛ｒを駆動するためのもの
である。トランジスタ′１゛ｒはオペアンプＩＣ４の出
力を受りて、メータＭを振らＵるための電流ブースタの
働きをする。Display unit 3 operational amplifier IC311C4, resistance Rio~R
It is composed of a transistor Tr and a meter M. The operational amplifier IC3 is a constant voltage source necessary for operating the operational amplifier IC. The operational amplifier IC4 is for extracting the difference between the output voltages of the operational amplifier IC2 and the operational amplifier IC3 to drive the transistor '1'r. The transistor '1'r receives the output of the operational amplifier IC4 and functions as a current booster to swing the meter M.
このように構成されているので、冬期のバッテリの液温
か低いときにはサーミスタの抵抗が大きくなり、増幅器
の増幅度が大きくなるので、内部抵抗の増加による電圧
降下分を増加さ・Ｕる補正をすることができる。With this configuration, when the battery liquid temperature is low in winter, the resistance of the thermistor increases and the amplification degree of the amplifier increases, so the voltage drop due to the increase in internal resistance is compensated for. be able to.
逆に、夏期のバッテリの液温か高いときにはサーミスタ
の抵抗が小さくなり、増幅器の増幅度が小さくなるので
、内部抵抗の減少による電圧降下分を減少さ・ｌ“る補
正をすることができる。Conversely, when the temperature of the battery liquid is high in the summer, the resistance of the thermistor decreases and the amplification degree of the amplifier decreases, so it is possible to compensate for the voltage drop due to the decrease in internal resistance.
以上詳しく説明したように、本発明によれば、バッテリ
の液温をサーミスタ等の感熱素子を用いて検出し液温に
対する温度補正をしているので、簡単な構成により無調
整で温度変化によるバッテリの残存容量の表示叢呉差を
無くずごとができる。As explained in detail above, according to the present invention, the temperature of the battery liquid is detected using a heat-sensitive element such as a thermistor, and the temperature is corrected for the liquid temperature. The remaining capacity can be displayed and the difference can be lost.
第１図は本発明によるバッテリの残存容川表示装置ｈ゛
の実施例を示す回路図である。
１・・・増幅器 ２・・・加算回路３・・・表
示部
Ｉｃ、〜ＩＣ４・・・オペアンプ
Ｉｃ５・・・ヨ６１；１子レギュレータＲ１〜ＲＩＢ・
・・１氏抗 Ｃ＋ 〜Ｃ４−コンデンリーＴｒ・・・
Ｉ・ランジスタ
１” ＩＩ 、 、 ｉ” １１２・・・ナーミスタ
Ｓ・・・電流検出器
特許出願人 鈴木自動車工業株式会社FIG. 1 is a circuit diagram showing an embodiment of a battery remaining capacity display device h according to the present invention. 1...Amplifier 2...Addition circuit 3...Display section Ic, ~IC4...Operational amplifier Ic5...Y61; 1 child regulator R1~RIB・
・Mr. 1 anti-C+ ~ C4- condensate Tr...
I/Ransistor 1" II, , i" 112...Narmister S...Current detector Patent applicant Suzuki Motor Co., Ltd.
Claims (1)
検出器と、前記電流検出器で検出された電圧を前記バッ
テリの内部抵抗による電圧降下に相当する分だり増幅す
る増幅器と、前記バッテリの端子電圧に前記増幅器の出
力を加算する加算回路と、前記加算回路の出力を表示す
る表示部とからなるバッテリの残存容量表示装置におい
て、前記バッテリのバッテリ液の温度を検出する感熱素
子を設け、前記感熱素子により検出したバッテリ液温に
対応して前記増幅器の増幅度を変化させるように構成し
たことを特徴とするバッテリの残存容量表示装置。a current detector that detects the current flowing to the terminal of the battery in the form of voltage; an amplifier that amplifies the voltage detected by the current detector by an amount corresponding to a voltage drop due to the internal resistance of the battery; and a terminal of the battery. A battery remaining capacity display device comprising an adding circuit that adds the output of the amplifier to a voltage, and a display section that displays the output of the adding circuit, wherein a heat sensitive element is provided to detect the temperature of the battery fluid of the battery, A remaining capacity display device for a battery, characterized in that the amplification degree of the amplifier is changed in response to a battery liquid temperature detected by a heat-sensitive element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57167078A JPS5956177A (en) | 1982-09-24 | 1982-09-24 | Display device for remaining capacity of battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57167078A JPS5956177A (en) | 1982-09-24 | 1982-09-24 | Display device for remaining capacity of battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5956177A true JPS5956177A (en) | 1984-03-31 |
Family
ID=15842991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57167078A Pending JPS5956177A (en) | 1982-09-24 | 1982-09-24 | Display device for remaining capacity of battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5956177A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4866471A (en) * | 1986-03-25 | 1989-09-12 | Canon Kabushiki Kaisha | Battery check device for camera |
| US5412307A (en) * | 1992-06-09 | 1995-05-02 | Sony Corporation | Residual capacity indicating device |
| WO2000068701A1 (en) * | 1999-05-10 | 2000-11-16 | Act Meters Limited | Battery testers |
| USRE44405E1 (en) | 2002-07-08 | 2013-08-06 | Nec Corporation | Switch integrated casing and electronic equipment having the casing |
-
1982
- 1982-09-24 JP JP57167078A patent/JPS5956177A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4866471A (en) * | 1986-03-25 | 1989-09-12 | Canon Kabushiki Kaisha | Battery check device for camera |
| US5412307A (en) * | 1992-06-09 | 1995-05-02 | Sony Corporation | Residual capacity indicating device |
| WO2000068701A1 (en) * | 1999-05-10 | 2000-11-16 | Act Meters Limited | Battery testers |
| USRE44405E1 (en) | 2002-07-08 | 2013-08-06 | Nec Corporation | Switch integrated casing and electronic equipment having the casing |
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