JP3473488B2 - Battery remaining capacity detection device - Google Patents
Battery remaining capacity detection deviceInfo
- Publication number
- JP3473488B2 JP3473488B2 JP10827299A JP10827299A JP3473488B2 JP 3473488 B2 JP3473488 B2 JP 3473488B2 JP 10827299 A JP10827299 A JP 10827299A JP 10827299 A JP10827299 A JP 10827299A JP 3473488 B2 JP3473488 B2 JP 3473488B2
- Authority
- JP
- Japan
- Prior art keywords
- battery
- voltage
- internal resistance
- value
- 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.)
- Expired - Lifetime
Links
Landscapes
- Measurement Of Current Or Voltage (AREA)
- Tests Of Electric Status Of Batteries (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、電池の残存容量を
検出して表示あるいは報知する電池の残存容量検出装置
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery remaining capacity detecting device for detecting and displaying or notifying the remaining capacity of a battery.
【０００２】[0002]
【従来の技術】従来、電池の残存容量検出装置として
は、電池の端子間電圧を検出する電圧検出手段を備え、
これにより検出された値を表示するものがある。一般
に、電池を用いて電力を供給するモータ等に大きな負荷
がかかるとそれに伴い駆動電流が大きくなり、それに伴
い端子間電圧が低下することになる。すると上述した電
池の残存容量検出装置にあっては、出力される値が小さ
くなることになり、利用者は電池の残存容量が低下した
ものと誤った判断をすることになる。2. Description of the Related Art Conventionally, as a battery remaining capacity detecting device, there is provided a voltage detecting means for detecting a voltage between terminals of the battery,
Some display the value detected by this. Generally, when a large load is applied to a motor or the like that supplies electric power using a battery, the drive current increases accordingly, and the inter-terminal voltage decreases accordingly. Then, in the battery remaining capacity detecting device described above, the output value becomes small, and the user erroneously determines that the battery remaining capacity has decreased.
【０００３】そこで、電池の残存容量を正しく利用者に
報知することが可能になる電池の残存容量検出装置が特
開平５−３３３０６４号公報等に提案されている。この
ものにあっては、駆動電流の大きさに応じて端子間電圧
値を補正するようになっている。Therefore, a battery remaining capacity detecting device capable of correctly notifying the user of the remaining capacity of the battery has been proposed in Japanese Laid-Open Patent Publication No. 5-333064. In this device, the voltage value between terminals is corrected according to the magnitude of the drive current.
【０００４】[0004]
【発明が解決しようとする課題】ところが、上述のよう
な構成の電池の残存容量検出装置にあっては、駆動電流
に応じて変化する電池内部抵抗による電圧降下や駆動電
流と比例関係にある配線抵抗による電圧降下が考慮され
ておらず必ずしも正確な電池の残存容量表示することが
できないという問題点を有していた。However, in the battery residual capacity detecting device having the above-mentioned structure, the wiring which is proportional to the voltage drop due to the internal resistance of the battery which changes according to the driving current and the driving current. There is a problem in that the voltage drop due to the resistance is not taken into consideration and it is not always possible to accurately display the remaining capacity of the battery.
【０００５】本発明は、上記の問題点に鑑みて成された
ものであり、その目的とするところは、正確に電池の残
存容量を検出することが可能になる電池の残存容量検出
装置を提供することにある。The present invention has been made in view of the above problems, and an object of the present invention is to provide a battery remaining capacity detecting device capable of accurately detecting the remaining capacity of a battery. To do.
【０００６】[0006]
【課題を解決するための手段】請求項１記載の発明は、
電池の端子間電圧を検出する電圧検出手段と、電池から
電力供給される負荷の駆動電流を検出する電流検出手段
と、電池と負荷との間の配線抵抗及び電池の内部抵抗の
加算値に駆動電流を乗算して補正電圧を求め、端子間電
圧に補正電圧を加えて出力する電圧補正手段と、を備え
た電池の残存容量検出装置である。The invention according to claim 1 is
Voltage detection means for detecting the voltage across the terminals of the battery, current detection means for detecting the drive current of the load that is supplied with power from the battery, and drive to the added value of the wiring resistance between the battery and the load and the internal resistance of the battery multiplied by the current seeking the correction voltage includes a voltage correction means for outputting the terminal voltage by adding the correction voltage, the
It is a battery remaining capacity detection device .
【０００７】請求項１記載の発明は、前記電池の残存容
量検出装置において、前記電池の内部抵抗はモデル化し
たもので、この電池の内部抵抗の値を駆動電流との関係
において設定したことを特徴とするものである。[0007] The invention of claim 1, wherein, in the remaining capacity detecting apparatus of the cell, the internal resistance of the battery is modeled
The value of the internal resistance of this battery is related to the drive current.
It is characterized by being set in.
【０００８】請求項２記載の発明は、請求項１記載の電
池の残存容量検出装置において、電池の内部抵抗の値を
駆動電流が大きい時には小さくするように設定したこと
を特徴とするものである。[0008] According to a second aspect of the invention, characterized in that set to be smaller when the remaining capacity detecting apparatus of the cell according to claim 1, the driving current value of the internal resistance of the batteries is large is there.
【０００９】請求項３記載の発明は、請求項１又は請求
項２記載の電池の残存容量検出装置において、電池と電
圧検出手段との間の配線抵抗の値を利用者が設定するた
めの配線抵抗設定手段を付加したことを特徴とするもの
である。According to a third aspect of the present invention, in the battery residual capacity detecting device according to the first or second aspect , the user sets the value of the wiring resistance between the battery and the voltage detecting means .
It is characterized in that a wiring resistance setting means for the purpose is added.
【００１０】請求項４記載の発明は、請求項１乃至請求
項３記載の電池の残存容量検出装置において、電池の内
部抵抗の値を利用者が設定するための電池内部抵抗設定
手段を付加したことを特徴とするものである。According to a fourth aspect of the present invention, in the battery residual capacity detecting device according to the first to third aspects, a battery internal resistance setting means for a user to set the value of the internal resistance of the battery is added. It is characterized by that.
【００１１】[0011]
【発明の実施の形態】以下、本発明の一実施の形態に係
る電池の残存容量検出装置について図１乃至図４に基づ
き詳細に説明する。BEST MODE FOR CARRYING OUT THE INVENTION A battery remaining capacity detecting apparatus according to an embodiment of the present invention will be described in detail below with reference to FIGS.
【００１２】本実施の形態に係る電池の残存容量検出装
置の概略構成図を図１に示す。本実施の形態に係る電池
２の残存容量検出装置は、電圧検出手段１ａと、電流検
出手段１ｂと、電圧補正手段１ｃとから構成され、電流
検出手段１ｂの出力値の大きさに応じて電圧検出手段１
ａから出力される電圧値を補正するようになっている。FIG. 1 shows a schematic configuration diagram of a battery residual capacity detecting device according to the present embodiment. The remaining capacity detecting device for a battery 2 according to the present embodiment is composed of a voltage detecting means 1a, a current detecting means 1b, and a voltage correcting means 1c, and a voltage according to the magnitude of the output value of the current detecting means 1b. Detection means 1
The voltage value output from a is corrected.
【００１３】電池２は残存容量と比例関係にある開路電
圧Vbatと電池の内部抵抗Rbatとによりモデル化される。
配線抵抗Rwは電池２と負荷Ｌとの間の抵抗値であり、電
圧検出器３ａは電池２が出力する負荷Ｌの端子間電圧を
電圧検出手段１ａに出力し、電流検出器３ｂは電池２が
放電する駆動電流を電流検出手段１ｂに出力する。The battery 2 is modeled by the open circuit voltage Vbat and the internal resistance Rbat of the battery, which are proportional to the remaining capacity.
The wiring resistance Rw is a resistance value between the battery 2 and the load L, the voltage detector 3a outputs the terminal voltage of the load L output by the battery 2 to the voltage detecting means 1a, and the current detector 3b is the battery 2 Outputs the drive current discharged by the current detector 1b.
【００１４】電池２の端子間電圧を検出する電圧検出手
段１ａ及び電池２から供給される負荷Ｌの駆動電流を検
出する電流検出手段１ｂは、端子間電圧及び駆動電流を
演算処理可能な信号値(Vs、Is)に増幅／変換する。電圧
補正手段１ｃは、検出された端子間電圧Vsと駆動電流Is
とから開路電圧演算値Vsignを算出する。The voltage detecting means 1a for detecting the terminal voltage of the battery 2 and the current detecting means 1b for detecting the driving current of the load L supplied from the battery 2 are signal values capable of calculating the terminal voltage and the driving current. Amplify / convert to (Vs, Is). The voltage correction means 1c detects the detected inter-terminal voltage Vs and drive current Is.
The open circuit voltage calculation value Vsign is calculated from and.
【００１５】表示手段４は、電圧補正手段１ｃからの信
号を受けて、開路電圧演算値Vsignに応じた電池の残存
容量を表示するようになっている。The display means 4 receives the signal from the voltage correction means 1c and displays the remaining capacity of the battery according to the open circuit voltage calculated value Vsign.
【００１６】電圧補正手段１ｃは、図２に示すように、
電池内部抵抗設定手段１ｃａと、補正電圧演算手段１ｃ
ｂとを備えてなる。電池内部抵抗設定手段１ｃａは、駆
動電流Isと電池内部抵抗設定値Rbatとの関係を設定／保
持しているものであり、駆動電流Isに応じた電池内部抵
抗設定値Rbatを補正電圧演算手段１ｃｂに指令するよう
になっている。The voltage correction means 1c, as shown in FIG.
Battery internal resistance setting means 1ca and correction voltage calculation means 1c
and b. The battery internal resistance setting means 1ca sets / holds the relationship between the driving current Is and the battery internal resistance setting value Rbat. The battery internal resistance setting value Rbat according to the driving current Is is corrected voltage calculating means 1cb. To order.
【００１７】なお、電池内部抵抗の値や配線抵抗の値は
使用する電池２や配線の特性により変化するものである
ことから、これらの値を利用者が電池内部抵抗設定手段
１ｃａや配線抵抗設定手段（図示せず）を用いて任意に
設定することができるようになっている。これにより、
電池２や配線の特性に基づいて細やかに補正電圧を算出
することが可能になっている。Since the value of the internal resistance of the battery and the value of the wiring resistance change depending on the characteristics of the battery 2 and the wiring to be used, the user can set these values by the battery internal resistance setting means 1ca and the wiring resistance setting. It can be arbitrarily set by using a means (not shown). This allows
It is possible to precisely calculate the correction voltage based on the characteristics of the battery 2 and the wiring.
【００１８】[0018]
【数１】 [Equation 1]
【００１９】本実施の形態にあっては駆動電流と電池内
部抵抗設定値との関係は、図３に示すように、駆動電流
Isが切換電流I1まで一定値で、切換電流I1以降は駆動電
流Isに応じて減少させた電池内部抵抗設定値Rbatを設定
／記憶している。補正電圧演算手段１ｃｂは、電池電圧
Vsと、駆動電流Isと、電池内部抵抗設定値RbatとからIn the present embodiment, the relationship between the drive current and the battery internal resistance setting value is as shown in FIG.
Is is a constant value up to the switching current I1, and after the switching current I1, the battery internal resistance setting value Rbat reduced according to the driving current Is is set / stored. The correction voltage calculation means 1cb is the battery voltage.
From Vs, drive current Is, and battery internal resistance setting value Rbat
【数１】に基づいて補正電圧Vaddを演算する。The correction voltage Vadd is calculated based on the following equation.
【００２０】なお、Incidentally,
【数１】において、Vadd_wは配線抵抗による補正電圧を
示し、Vadd_bは電池内部抵抗による補正電圧を示してい
る。In [Equation 1], Vadd_w represents the correction voltage due to the wiring resistance, and Vadd_b represents the correction voltage due to the battery internal resistance.
【００２１】本実施の形態にあっては、加算手段により
電池の端子間電圧Vsに補正電圧Vaddを加算することによ
り開路電圧演算値Vsignを算出する。図４に駆動電流Is
と開路電圧演算値Vsignとの関係を示す。配線抵抗によ
る補正電圧Vadd_wは、駆動電流Isに応じて比例的に増加
する。電池内部抵抗による補正電圧Vadd_bは切換電流I1
まで駆動電流Isに比例して大きくなるが、切換電流I1以
降は電池内部抵抗値Rbatが小さくなるため駆動電流Isに
比例して増加しない。In the present embodiment, the open circuit voltage calculation value Vsign is calculated by adding the correction voltage Vadd to the battery terminal voltage Vs by the adding means. Fig. 4 shows the drive current Is
And the calculated open circuit voltage value Vsign. The correction voltage Vadd_w due to the wiring resistance increases in proportion to the drive current Is. The correction voltage Vadd_b due to the internal resistance of the battery is the switching current I1.
However, since the battery internal resistance value Rbat decreases after the switching current I1, it does not increase in proportion to the drive current Is.
【００２２】本実施の形態に係る電池の残存容量検出装
置にあっては、電流検出手段１ｂの出力信号が大きくな
れば電圧検出手段１ａから出力される電圧値が大きくな
るように補正していたものに加え、駆動電流に比例して
増加する配線抵抗による電圧補正と電池固有の特性で決
まる電池の内部抵抗による電圧補正を加味して補正電圧
を求めることができるため、正確に電池の残存容量を検
出することが可能になるのである。In the battery remaining capacity detecting apparatus according to the present embodiment, the voltage value output from the voltage detecting means 1a is corrected so as to increase as the output signal of the current detecting means 1b increases. In addition to the above, the voltage correction due to the wiring resistance that increases in proportion to the drive current and the voltage correction due to the internal resistance of the battery determined by the battery's unique characteristics can be taken into account to obtain the correction voltage, so the remaining capacity of the battery is accurate. Can be detected.
【００２３】[0023]
【発明の効果】以上のように、請求項１記載の発明にあ
っては、電池の端子間電圧を検出する電圧検出手段と、
電池から電力供給される負荷の駆動電流を検出する電流
検出手段と、電池と負荷との間の配線抵抗及び電池の内
部抵抗の加算値に駆動電流を乗算して補正電圧を求め、
端子間電圧に補正電圧を加えて出力する電圧補正手段と
を備えるようにしたので、駆動電流に比例して増加する
配線抵抗による電圧補正と電池固有の特性で決まる電池
の内部抵抗による電圧補正を加味して補正電圧を求める
ことができるため、正確に電池の残存容量を検出するこ
とが可能になる電池の残存容量検出装置を提供すること
が可能になるという効果を奏する。As described above, according to the first aspect of the invention, the voltage detecting means for detecting the terminal voltage of the battery,
Current detection means for detecting the drive current of the load supplied from the battery, and the correction voltage is calculated by multiplying the drive current to the added value of the wiring resistance between the battery and the load and the internal resistance of the battery,
Since a voltage correction means for adding a correction voltage to the terminal voltage and outputting the voltage is provided, voltage correction by the wiring resistance that increases in proportion to the drive current and voltage correction by the internal resistance of the battery determined by the characteristics peculiar to the battery are performed. Since the correction voltage can be obtained in consideration, it is possible to provide a battery remaining capacity detection device that can accurately detect the battery remaining capacity.
【００２４】特に、請求項１記載の発明にあっては、上
記の電池の残存容量検出装置において、電池の内部抵抗
はモデル化したもので、この電池の内部抵抗の値を駆動
電流との関係において設定したので、駆動電流で放電容
量が変化する電池においても残存容量を正確に算出する
ことが可能になるという効果を奏する。[0024] Particularly, in the invention of claim 1, wherein the upper
In the battery remaining capacity detection device described above, the internal resistance of the battery
Is a model that drives the value of the internal resistance of this battery
Since the setting is made in relation to the current, it is possible to accurately calculate the remaining capacity even in a battery whose discharge capacity changes with the drive current.
【００２５】請求項２記載の発明にあっては、請求項１
記載の電池の残存容量検出装置において、電池の内部抵
抗の値を駆動電流が大きい時には小さくするように設定
したので、鉛電池のように駆動電流が大きい場合には放
電容量が減少する電池においても残存容量を正確に算出
することが可能になるという効果を奏する。According to the invention of claim 2 , claim 1
In the remaining capacity detection unit of the battery according, since the set <br/> to small when a large driving current value of the internal resistance of the batteries, the discharge capacity when the driving current is large as a lead battery It is possible to accurately calculate the remaining capacity even when the number of batteries decreases.
【００２６】請求項３記載の発明にあっては、請求項１
又は請求項２記載の電池の残存容量検出装置において、
電池と電圧検出手段との間の配線抵抗の値を利用者が設
定するための配線抵抗設定手段を付加したので、利用者
は配線の特性に合わせて配線抵抗を細やかに設定するこ
とができるため、より精度良く補正電圧を算出すること
が可能になるという効果を奏する。According to the invention of claim 3 , claim 1
Alternatively, in the battery residual capacity detecting device according to claim 2 ,
Since the wiring resistance setting means for allowing the user to set the value of the wiring resistance between the battery and the voltage detecting means is added ,
Since the wiring resistance can be finely set according to the characteristics of the wiring, the correction voltage can be calculated more accurately.
【００２７】請求項４記載の発明にあっては、請求項１
乃至請求項３記載の電池の残存容量検出装置において、
電池の内部抵抗の値を利用者が設定するための電池内部
抵抗設定手段を付加したので、利用者は電池の特性に合
わせて電池内部抵抗を細やかに設定することができるた
め、より精度良く補正電圧を算出することが可能になる
という効果を奏する。According to the invention of claim 4 , claim 1
To the battery remaining capacity detection device according to claim 3 ,
Since a battery internal resistance setting means for allowing the user to set the internal resistance value of the battery has been added, the user can set the battery internal resistance finely according to the characteristics of the battery, so that it can be corrected more accurately. It is possible to calculate the voltage.
【図１】電池の残存容量検出装置の概略構成図である。FIG. 1 is a schematic configuration diagram of a battery remaining capacity detection device.
【図２】電圧補正手段の概略構成図である。FIG. 2 is a schematic configuration diagram of a voltage correction unit.
【図３】駆動電流と電池内部抵抗設定値との関係を示す
グラフである。FIG. 3 is a graph showing a relationship between a drive current and a battery internal resistance setting value.
【図４】駆動電流と電圧との関係を示すグラフである。FIG. 4 is a graph showing the relationship between drive current and voltage.
１ａ 電圧検出手段 １ｂ 電流検出手段 １ｃ 電圧補正手段 １ｃａ 電池内部抵抗設定手段 １ｃｂ 補正電圧演算手段 ２ 電池 ３ａ 電圧検出器 ３ｂ 電流検出器 ４ 表示手段 1a Voltage detection means 1b Current detection means 1c Voltage correction means 1ca Battery internal resistance setting means 1cb correction voltage calculation means 2 batteries 3a Voltage detector 3b Current detector 4 Display means
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平７−274411（ＪＰ，Ａ) 特開 平10−221418（ＪＰ，Ａ) 特開 平９−297164（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) G01R 31/36 G01R 19/00 - 19/32 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-7-274411 (JP, A) JP-A-10-221418 (JP, A) JP-A-9-297164 (JP, A) (58) Field (Int.Cl. 7 , DB name) G01R 31/36 G01R 19/00-19/32
Claims (4)
段と、電池から電力供給される負荷の駆動電流を検出す
る電流検出手段と、電池と負荷との間の配線抵抗及び電
池の内部抵抗の加算値に駆動電流を乗算して補正電圧を
求め、端子間電圧に補正電圧を加えて出力する電圧補正
手段と、を備え、 前記電池の内部抵抗はモデル化したもので、この電池の
内部抵抗の値を駆動電流との関係において設定 したこと
を特徴とする電池の残存容量検出装置。1. A voltage detecting means for detecting a voltage between terminals of a battery, a current detecting means for detecting a driving current of a load supplied with power from the battery, a wiring resistance between the battery and the load, and an internal resistance of the battery. of multiplying the drive current to the added value seeking compensation voltage, a voltage correction means for outputting the terminal voltage by adding the correction voltage includes a, the internal resistance of the battery is obtained by modeling, the battery
A battery remaining capacity detection device characterized in that the value of the internal resistance is set in relation to the drive current .
時には小さくするように設定したことを特徴とする請求
項１記載の電池の残存容量検出装置。Wherein batteries battery residual capacity detection device according to claim 1, characterized in that set to be smaller when the value of the driving current of the internal resistance is large.
値を利用者が設定するための配線抵抗設定手段を付加し
たことを特徴とする請求項１又は請求項２記載の電池の
残存容量検出装置。3. A remaining battery according to claim 1 or claim 2, wherein the user the value of the wiring resistance, characterized in that by adding the wiring resistance setting means for setting between the battery voltage detection means Capacitance detection device.
ための電池内部抵抗設定手段を付加したことを特徴とす
る請求項１乃至請求項３記載の電池の残存容量検出装
置。4. The user sets the value of the internal resistance of the battery.
Battery residual capacity detection device according to claim 1 to claim 3, wherein to the addition of the battery internal resistance setting means for.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10827299A JP3473488B2 (en) | 1999-04-15 | 1999-04-15 | Battery remaining capacity detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10827299A JP3473488B2 (en) | 1999-04-15 | 1999-04-15 | Battery remaining capacity detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000298160A JP2000298160A (en) | 2000-10-24 |
| JP3473488B2 true JP3473488B2 (en) | 2003-12-02 |
Family
ID=14480452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10827299A Expired - Lifetime JP3473488B2 (en) | 1999-04-15 | 1999-04-15 | Battery remaining capacity detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3473488B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104345757A (en) * | 2013-07-26 | 2015-02-11 | 台达电子电源(东莞)有限公司 | Power detection and correction device and power detection and correction method |
| CN109782183A (en) * | 2017-11-14 | 2019-05-21 | 本田技研工业株式会社 | Internal state estimating device |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4061965B2 (en) * | 2002-05-14 | 2008-03-19 | ソニー株式会社 | Battery capacity calculation method |
| JP4255795B2 (en) * | 2003-09-30 | 2009-04-15 | 本田技研工業株式会社 | Open circuit voltage detection device and remaining capacity detection device of power storage device |
| JP4547908B2 (en) * | 2003-12-25 | 2010-09-22 | 日産自動車株式会社 | Secondary battery input / output possible power estimation device |
| TWI320241B (en) * | 2005-05-27 | 2010-02-01 | Method and apparatus of detecting voltage for battery pack | |
| JP5601761B2 (en) * | 2008-06-09 | 2014-10-08 | 住友重機械工業株式会社 | Hybrid work machine |
| CN102495372B (en) * | 2011-11-29 | 2014-01-08 | 北京科诺伟业科技有限公司 | Detection method of accumulator capacity of variable-pitch system of wind turbine generator |
| CN103176134B (en) * | 2011-12-26 | 2015-08-19 | 中国移动通信集团安徽有限公司 | The method of estimation on line accumulator capacity |
| JP2013210333A (en) * | 2012-03-30 | 2013-10-10 | Furukawa Electric Co Ltd:The | Internal resistance detecting method and internal resistance detecting device for secondary battery |
| JP6278240B2 (en) | 2013-08-12 | 2018-02-14 | 株式会社Ｇｓユアサ | Power storage device management device, power storage device, power storage system, and power storage device management method |
| JP6389677B2 (en) * | 2013-12-17 | 2018-09-12 | 矢崎総業株式会社 | Battery charge rate estimation device |
| DE102014222371A1 (en) * | 2014-11-03 | 2016-05-04 | Bayerische Motoren Werke Aktiengesellschaft | Circuit arrangement and method for determining the impedance of a test battery |
| CN112462247A (en) * | 2020-11-13 | 2021-03-09 | 上海华虹集成电路有限责任公司 | Method and circuit for measuring EEPROM erasing voltage of smart card chip |
-
1999
- 1999-04-15 JP JP10827299A patent/JP3473488B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104345757A (en) * | 2013-07-26 | 2015-02-11 | 台达电子电源(东莞)有限公司 | Power detection and correction device and power detection and correction method |
| CN104345757B (en) * | 2013-07-26 | 2016-08-24 | 台达电子电源(东莞)有限公司 | Electric power detecting and correcting unit and electric power detecting and bearing calibration |
| CN109782183A (en) * | 2017-11-14 | 2019-05-21 | 本田技研工业株式会社 | Internal state estimating device |
| CN109782183B (en) * | 2017-11-14 | 2021-01-05 | 本田技研工业株式会社 | Internal state estimating device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000298160A (en) | 2000-10-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3473488B2 (en) | Battery remaining capacity detection device | |
| JP3311268B2 (en) | Current sensor failure judgment device | |
| JPH11162526A (en) | Battery condition detecting device | |
| JP2011137681A (en) | Impedance detection circuit, battery power supply apparatus, and battery utilization system | |
| JP2001281307A (en) | Battery capacity detecting method | |
| JP2000137062A (en) | Method and device for detecting residual capacity of secondary battery | |
| US7602150B2 (en) | Battery device for electronic apparatus with rechargeable secondary battery, fuel cell and run time computing unit | |
| JP3225119B2 (en) | Battery life detector | |
| JP3694959B2 (en) | Battery remaining capacity detection method and apparatus | |
| JP2004301782A (en) | Fully charging state detecting device, its method, charging state detecting device and its method, and deterioration detecting device and its method | |
| JP2002323526A (en) | Insulation resistance deterioration detecting method and apparatus | |
| JP2005010032A (en) | Battery power detecting method, small electrical equipment using the method and battery pack | |
| JP3288257B2 (en) | Battery state-of-charge detection device | |
| JPH0843505A (en) | Device for measuring residual capacity of secondary battery | |
| JP2693927B2 (en) | Battery pack for mobile phone | |
| JP2002325362A (en) | Secondary battery capacity measurement system, secondary battery full capacity compensating method, charging efficiency compensating method and discharge efficiency compensating method | |
| JP2937796B2 (en) | Method for measuring charge / discharge current of secondary battery for power storage, method for measuring remaining power, and measuring device | |
| JP3975738B2 (en) | Storage battery status detection device | |
| JP2001095159A (en) | Secondary battery unit, and method of measuring electric capacity thereof | |
| JP2000131404A (en) | Cell deterioration degree determining apparatus | |
| JPH06310179A (en) | Loading device and charging device for battery, and battery pack | |
| JP2004245673A (en) | Method and device for predicting residual capacity of storage capacitor, and storage capacitor pack | |
| JP4802414B2 (en) | Battery remaining capacity meter | |
| JP4876340B2 (en) | Battery control device | |
| JP4306900B2 (en) | Rechargeable battery charging method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080919 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080919 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090919 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090919 Year of fee payment: 6 |
|
| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090919 Year of fee payment: 6 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090919 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100919 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110919 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110919 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120919 Year of fee payment: 9 |