JP3473488B2 - Battery remaining capacity detection device - Google Patents

Battery remaining capacity detection device

Info

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
Application number
JP10827299A
Other languages
Japanese (ja)
Other versions
JP2000298160A (en
Inventor
幸彦 岡村
吉田  孝
健二 阪本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP10827299A priority Critical patent/JP3473488B2/en
Publication of JP2000298160A publication Critical patent/JP2000298160A/en
Application granted granted Critical
Publication of JP3473488B2 publication Critical patent/JP3473488B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Measurement Of Current Or Voltage (AREA)
  • Tests Of Electric Status Of Batteries (AREA)

Description

【発明の詳細な説明】Detailed Description of the Invention

【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】請求項記載の発明は、請求項記載の電
池の残存容量検出装置において、池の内部抵抗の値
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】請求項記載の発明は、請求項1又は請求
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
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】請求項記載の発明は、請求項1乃至請求
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、請求項記載の発明にあっては、
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】請求項記載の発明にあっては、請求項
記載の電池の残存容量検出装置において、池の内部抵
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】請求項記載の発明にあっては、請求項1
又は請求項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
定するための配線抵抗設定手段を付加したので、利用者
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】請求項記載の発明にあっては、請求項1
乃至請求項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.

【図面の簡単な説明】[Brief description of drawings]

【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.

【符号の説明】[Explanation of symbols]

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)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 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 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 .
【請求項2】 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請求
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.
【請求項3】 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請求項1又は請求項記載の電池の
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.
【請求項4】 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
る請求項1乃至請求項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.
JP10827299A 1999-04-15 1999-04-15 Battery remaining capacity detection device Expired - Lifetime JP3473488B2 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (4)

* Cited by examiner, † Cited by third party
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