JPH07120539A - Method and device for judging life of storage battery - Google Patents

Method and device for judging life of storage battery

Info

Publication number
JPH07120539A
JPH07120539A JP5288745A JP28874593A JPH07120539A JP H07120539 A JPH07120539 A JP H07120539A JP 5288745 A JP5288745 A JP 5288745A JP 28874593 A JP28874593 A JP 28874593A JP H07120539 A JPH07120539 A JP H07120539A
Authority
JP
Japan
Prior art keywords
storage battery
life
voltage
discharge time
time
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
Application number
JP5288745A
Other languages
Japanese (ja)
Inventor
Hidetoshi Seya
秀俊 瀬谷
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.)
Nippon Electric Industry Co Ltd
Original Assignee
Nippon Electric Industry Co 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 Nippon Electric Industry Co Ltd filed Critical Nippon Electric Industry Co Ltd
Priority to JP5288745A priority Critical patent/JPH07120539A/en
Publication of JPH07120539A publication Critical patent/JPH07120539A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To judge the life of a storage battery with high accuracy without requiring especially a complex and expensive device or a troublesome operation and technology. CONSTITUTION:A charger 2 for performing the floating charging of a storage battery 1 which is connected in parallel with a load, a current detection part 3 for detecting the charging/discharging of the storage battery 1, a voltage detection part 4 for detecting the normal discharge voltage of the storage battery 1, a timer part 5 for detecting the rising time required from the usual discharge voltage until reaching a specific maximum voltage, a life judgment part 6 for determining whether the life of the storage battery 1 expires or not from an inherent discharge time and a judgment equation, and a display part 7 for displaying the judgment result of the life for the storage battery 1 are provided.

Description

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

【0001】[0001]

【産業上の利用分野】この発明は、負荷と並列で充電器
に接続して浮動充電で使用される蓄電池において前記蓄
電池が寿命に達したか否かを判定する蓄電池の寿命判定
方法及びその判定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 storage battery life determining method for determining whether or not the storage battery has reached the end of its life in a storage battery used in floating charging by connecting to a charger in parallel with a load. It relates to the device.

【0002】[0002]

【従来の技術】例えば、鉛蓄電池による放電機能が良好
に発揮されているか否か、つまり未だ寿命があるか否か
を判定する方法として、使用環境に合わせて予め決定さ
れている使用年数からその鉛蓄電池の寿命を判定した
り、テスタ等で鉛蓄電池の内部抵抗値を測定したりする
ことが、広く一般に行われている。
2. Description of the Related Art For example, as a method for determining whether or not the discharge function of a lead storage battery is being satisfactorily exhibited, that is, whether or not there is still a life, the number of years of use determined in advance according to the environment of use It is widely and generally performed to determine the life of the lead storage battery and measure the internal resistance value of the lead storage battery with a tester or the like.

【0003】[0003]

【発明が解決しようとする課題】ところで、このような
蓄電池の寿命判定方法にあっては、例えば前者の場合で
は極く大雑把な目安のものしか判別できない欠点があ
り、また後者の場合には専用の装置が用意されている訳
ではないので、操作にはある程度の技術や知識が必要と
されている。そこで、この発明は、上記した欠点に鑑
み、特に複雑で高価な装置が必要でないとともに、面倒
な操作や技術も必要とせず、高い精度で蓄電池の寿命を
判定することができる蓄電池の寿命判定方法及びその判
定装置を提供することを目的とするものである。
By the way, such a storage battery life judging method has a drawback that, for example, in the former case, only a very rough standard can be judged, and in the latter case, it is exclusive. However, it requires a certain amount of skill and knowledge to operate it. Therefore, in view of the above-described drawbacks, the present invention does not require a particularly complicated and expensive device, does not require a troublesome operation or technique, and can determine the life of a storage battery with high accuracy, and a method for determining the life of a storage battery. And its determination device.

【0004】[0004]

【課題を解決するための手段】即ち、この発明の蓄電池
の寿命判定方法は、負荷と並列で充電器に接続して浮動
充電で使用される蓄電池において前記蓄電池が寿命に達
したか否かを判定する蓄電池の寿命判定方法であって、
測定すべき蓄電池を一定電流値で一定電圧まで放電させ
るのに要する放電時間と充電器によって前記蓄電池を所
定電圧まで上昇させるときの立ち上がり時間との相関関
係を示す特性関数を予め求めておき、測定すべき前記蓄
電池固有の立ち上がり時間を測定し、前記特性関数を用
いて前記固有の立ち上がり時間から固有の放電時間を検
出し、使用前の最大放電時間に対する前記固有放電時間
の値が所定値以下に低下したか否かを判断する判別式を
用いて前記蓄電池が寿命に達したか否かを決定するもの
である。
That is, the method of determining the life of a storage battery according to the present invention determines whether or not the storage battery has reached the end of its life in a storage battery used in floating charging by connecting to a charger in parallel with a load. A method of judging the life of a storage battery,
A characteristic function indicating the correlation between the discharge time required to discharge the storage battery to be measured to a constant voltage at a constant current value and the rising time when the storage battery is raised to a predetermined voltage by a charger is obtained in advance and measured. To measure the rise time peculiar to the storage battery, to detect the peculiar discharge time from the peculiar rise time using the characteristic function, the value of the peculiar discharge time with respect to the maximum discharge time before use is not more than a predetermined value. A discriminant that determines whether or not the battery has decreased is used to determine whether or not the storage battery has reached the end of its life.

【0005】また、この発明の蓄電池の寿命判定装置
は、負荷と並列接続した蓄電池を浮動充電させる充電器
と、前記蓄電池の充放電を検出する電流検出部と、前記
蓄電池の常用充電電圧を検出する電圧検出部と、前記常
用充電電圧から所定の最大電圧に達するまでに要する立
ち上がり時間を検出するタイマ部と、測定すべき蓄電池
を一定電流値で一定電圧まで放電させるのに要する放電
時間と充電器によって前記蓄電池を所定電圧まで上昇さ
せるときの立ち上がり時間との相関関係を示す特性関数
と使用前の最大放電時間に対する前記固有放電時間の値
が所定値以下に低下したか否かを判断する判別式とを予
め記憶するとともに、前記タイマ部から出力される時間
信号により前記特性関数から固有の放電時間を検出し、
この固有の放電時間と前記判別式とから前記蓄電池が寿
命に達したか否かを決定する寿命判定部と、前記蓄電池
について寿命の判定結果を表示する表示部とを備えたも
のである。
Further, the storage battery life determining apparatus of the present invention detects a charging unit for floating charging a storage battery connected in parallel with a load, a current detecting unit for detecting charging / discharging of the storage battery, and a normal charging voltage of the storage battery. A voltage detection unit, a timer unit that detects a rising time required to reach a predetermined maximum voltage from the normal charging voltage, and a discharge time and charging required to discharge the storage battery to be measured to a constant voltage with a constant current value. With a characteristic function showing the correlation with the rise time when the storage battery is raised to a predetermined voltage by a container and the judgment of whether or not the value of the specific discharge time with respect to the maximum discharge time before use has dropped below a predetermined value With pre-stored formula and, detecting the unique discharge time from the characteristic function by the time signal output from the timer unit,
A life determining unit that determines whether or not the storage battery has reached the end of its life based on the unique discharge time and the discriminant, and a display unit that displays the result of determining the life of the storage battery are provided.

【0006】[0006]

【作用】この考案では、負荷と並列で充電器に接続して
浮動充電で使用される蓄電池において蓄電池が寿命に達
したか否かを判定する。即ち、図2に示すように測定す
べき蓄電池を一定電流値で一定電圧まで放電させるのに
要する放電時間と充電器によって蓄電池を寿命判定電圧
まで上昇させるときの放電立ち上がり時間とについて相
関関係があることに注目し、その相関関係を示す特性関
数を予め求めておく。次に、測定すべき蓄電池固有の充
電立ち上がり時間を測定し、先の特性関数を用いて固有
の充電立ち上がり時間から固有の放電時間を検出し、使
用前の最大放電時間に対する固有放電時間の値が所定値
以下に低下したか否かを判断する判別式を用いて蓄電池
が寿命に達したか否かを決定することができる。
In this invention, the battery is connected in parallel with the load to determine whether the battery has reached the end of its life in the battery used for floating charging. That is, as shown in FIG. 2, there is a correlation between the discharge time required to discharge the storage battery to be measured to a constant voltage at a constant current value and the discharge rise time when the storage battery is raised to the life determination voltage by the charger. Paying attention to this, the characteristic function indicating the correlation is obtained in advance. Next, the charging rise time peculiar to the storage battery to be measured is measured, the unique discharge time is detected from the unique charge rise time using the characteristic function above, and the value of the unique discharge time relative to the maximum discharge time before use is It is possible to determine whether or not the storage battery has reached the end of its life by using a discriminant that determines whether or not the battery has decreased below a predetermined value.

【0007】[0007]

【実施例】以下、この発明について添付図面を参照しな
がら説明する。図1はこの発明にかかる蓄電池の寿命判
定方法が適用された蓄電池の寿命判定装置をしめすもの
であり、この蓄電池の寿命判定装置は、蓄電池1を浮動
充電させる充電器2と、充電器2の充放電を検出する電
流検出部3と、蓄電池1の放電電圧を検出する電圧検出
部4と、常用充電電圧から所定の充電判定電圧に達する
までに要する充電立ち上がり時間を検出するタイマ部5
と、蓄電池が寿命に達したか否かを決定する寿命判定部
6と、寿命表示部7とから構成されている。なお、図中
8はサ−ミスタ等を使用した温度検出部を示すものであ
る。
DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the accompanying drawings. FIG. 1 illustrates a storage battery life determination device to which the storage battery life determination method according to the present invention is applied. This storage battery life determination device includes a charger 2 for floatingly charging the storage battery 1 and a charger 2. A current detection unit 3 that detects charge and discharge, a voltage detection unit 4 that detects the discharge voltage of the storage battery 1, and a timer unit 5 that detects the charge rise time required to reach a predetermined charge determination voltage from the normal charge voltage.
And a life display unit 7 for determining whether or not the storage battery has reached the end of life, and a life display unit 7. Reference numeral 8 in the figure shows a temperature detecting section using a thermistor or the like.

【0008】蓄電池1は、図示外のインバ−タ等の負荷
と並列で充電器2に接続して浮動充電で使用されるもの
であって、この実施例では鉛蓄電池が使用されている
が、特にこれに限定されるものではない。
The storage battery 1 is connected to a charger 2 in parallel with a load such as an inverter (not shown) and used for floating charging. In this embodiment, a lead storage battery is used. It is not particularly limited to this.

【0009】充電器2は、図2に示すごとく、普段は一
定の電圧(常用電圧)を印加することによって蓄電池1
の浮動充電を行うとともに、寿命を判定する場合には、
一定期間(例えばこの実施例では1箇月)毎にタイマ部
5から出力される制御信号によって先の常用電圧よりも
1段高い寿命判定電圧V2 を印加するようになってい
る。即ち、この充電器2では、蓄電池1の端子電圧Vが
所定の寿命判定電圧V2(この実施例では15.0ボル
ト)に達すると、電圧検出部4がこれを検出してタイマ
部5に検出信号を出力しそのタイマ部5から出力される
停止信号により、寿命判定電圧の印加動作を停止するよ
うになっており、図2では寿命判定電圧の印加開始時刻
1 から寿命判定電圧の印加停止時刻T2 までの充電電
圧の立ち上がりに要する時間(以下立ち上がり時間とい
う)がΔTとなっている。
As shown in FIG. 2, the charger 2 normally applies a constant voltage (normal voltage) to the storage battery 1.
When performing the floating charge of and determining the life,
The control signal output from the timer unit 5 applies a life determination voltage V 2 which is one step higher than the previous working voltage every certain period (for example, one month in this embodiment). That is, in the charger 2, when the terminal voltage V of the storage battery 1 reaches a predetermined life determining voltage V 2 (15.0 volts in this embodiment), the voltage detecting unit 4 detects this and causes the timer unit 5 to detect it. The detection signal is output and the stop signal output from the timer unit 5 stops the operation of applying the life determining voltage. In FIG. 2, the application of the life determining voltage is started from the application start time T 1 of the life determining voltage. The time required for the charging voltage to rise until the stop time T 2 (hereinafter referred to as the rising time) is ΔT.

【0010】電流検出部3は、ここを流れる電流の方向
からその時刻での充電状態か放電状態かを判断するもの
であり、特に電流の流れが変わる極性変化の際に充放電
の開始時刻を知らせるための検知信号をタイマ部5へ出
力するようになっている。
The current detector 3 determines the charge state or the discharge state at that time based on the direction of the current flowing therethrough. Particularly, when the polarity of the current flow changes, the charge / discharge start time is determined. A detection signal for notifying is output to the timer unit 5.

【0011】電圧検出部4は、蓄電池1が通常正常な状
態で放電を行う場合の電圧値V1 (この実施例では1
3.65ボルト)(常用電圧)から予め決定されている
寿命判定電圧V2 (この実施例では15.0ボルト)に
達したか否かを検出するものであり、図2に示すよう
に、丁度寿命判定電圧V2 に達したところで(図2にお
いて時刻T2 )充電動作の停止を知らせる検知信号をタ
イマ部5へ出力するようになっている。
The voltage detection unit 4 uses a voltage value V 1 ( 1 in this embodiment) when the storage battery 1 normally discharges in a normal state.
It is to detect whether or not a predetermined life judgment voltage V 2 (15.0 V in this embodiment) has been reached from 3.65 V (common voltage), and as shown in FIG. Just when the life judgment voltage V 2 is reached (time T 2 in FIG. 2 ), a detection signal notifying the stop of the charging operation is output to the timer unit 5.

【0012】タイマ部5は、数カ月のオ−ダで日数をカ
ウントする第1カウンタ部51と、蓄電池1が寿命判定
電圧V2 に達した時刻を検出する第2カウンタ部52と
から構成されている。そして、このタイマ部5は電流検
出部3及び電圧検出部4から出力される各検知信号をそ
れぞれ第1カウンタ部51及び第2カウンタ部52へ入
力することにより、蓄電池1が寿命に達したか否かを決
定する寿命判定の判断デ−タとなる立ち上がり時間(Δ
T)を検出するようになっており、この検出されたデ−
タは寿命判定部6に出力されるようになっている。
The timer section 5 is composed of a first counter section 51 for counting the number of days in the order of several months and a second counter section 52 for detecting the time when the storage battery 1 reaches the life judgment voltage V 2. There is. Then, the timer unit 5 inputs the detection signals output from the current detection unit 3 and the voltage detection unit 4 to the first counter unit 51 and the second counter unit 52, respectively, so that the storage battery 1 has reached the end of its life. Rise time (Δ
T) is detected, and the detected data is detected.
Data is output to the life determination unit 6.

【0013】寿命判定部6は、測定すべき蓄電池1を一
定電流値で一定電圧まで放電させるのに要する放電時間
(Y)と充電器2によって前記蓄電池1を所定電圧(最
大充電電圧V2 )まで上昇させるときの立ち上がり時間
(ΔT)との相関関係を示す特性関数と、使用前の最大
放電時間(Y2 )に対する前記固有放電時間(Y1 )の
値が所定値(例えば1/2)以下に低下したか否かを判
断する判別式(D)とを予め記憶するとともに、前記タ
イマ部5から出力される時間信号により前記特性関数か
ら固有の放電時間を検出し、この固有の放電時間と前記
判別式(D)とから蓄電池1が寿命に達したか否かを決
定するようになっている。なおここで、特性関数とは、
図3に示す、固有のグラフから決定されるようになって
おり、次式のように、一次関数、つまり Y=f(T) ・・・・・・ (ア) である。また、判別式(D)については、次式、つまり D= Y1 /Y2 < Z ・・・・・・ (イ) 但し、 この実施例では、Z=1/2である。
The life determining unit 6 uses the charger 2 to discharge the storage battery 1 to be measured to a constant voltage with a constant current value and a predetermined voltage (maximum charging voltage V 2 ) of the storage battery 1 by the charger 2 . And a characteristic function showing a correlation with the rise time (ΔT) when the temperature is increased up to the predetermined discharge time (Y 1 ) with respect to the maximum discharge time (Y 2 ) before use is a predetermined value (for example, 1/2). The discriminant (D) for determining whether or not the voltage has decreased below is stored in advance, and the unique discharge time is detected from the characteristic function by the time signal output from the timer unit 5, and the unique discharge time is detected. From the above discriminant (D), it is determined whether or not the storage battery 1 has reached the end of its life. Here, the characteristic function is
It is determined from the unique graph shown in FIG. 3, and is a linear function, that is, Y = f (T). Regarding the discriminant (D), the following equation, that is, D = Y 1 / Y 2 <Z (i) However, in this embodiment, Z = 1/2.

【0014】次に、先の実施例にかかる蓄電池の寿命判
定装置を用いて図4を参照しつつ寿命判定方法を説明す
る。
Next, a life determining method will be described with reference to FIG. 4 by using the storage battery life determining apparatus according to the previous embodiment.

【0015】先ず、寿命判定部6が、測定すべき蓄電池
1を一定電流値で所定電圧まで放電させるのに要する放
電時間と充電器2によって前記蓄電池1を寿命判定電圧
まで上昇させるときの立ち上がり時間との相関関係を示
す特性関数、即ち、 Y=f(T) ・・・・・・ (1) を決定する(第1ステップS1)。この特性関数は、図
3に示すような放電時間と立ち上がり時間とに関する各
種デ−タから求めることができるものであり、特定の傾
きを有する一次関数であることがこの発明者によって解
明されている。
First, the life determination unit 6 discharges the storage battery 1 to be measured to a predetermined voltage with a constant current value, and the rise time when the charger 2 raises the storage battery 1 to the life determination voltage. A characteristic function indicating a correlation with, that is, Y = f (T) (1) is determined (first step S1). This characteristic function can be obtained from various data relating to the discharge time and the rise time as shown in FIG. 3, and it has been clarified by the present inventor that it is a linear function having a specific slope. .

【0016】次に、タイマ部5が測定すべき前記蓄電池
固有の立ち上がり時間(T1 )を検出する(第2ステッ
プS2)。
Next, the timer unit 5 detects the rising time (T 1 ) peculiar to the storage battery to be measured (second step S2).

【0017】さらに、寿命判定部6が、特性関数(ア)
を用いて前記固有の立ち上がり時間(T1 )から固有の
放電時間(Y1 )を検出する(第3ステップS3)。
Further, the life judging section 6 is arranged so that the characteristic function (a)
Is used to detect the unique discharge time (Y 1 ) from the unique rise time (T 1 ) (third step S3).

【0018】そして、使用前の最大放電時間(Y2 )に
対する前記固有放電時間(Y1 )の値が所定値以下に低
下したか否かを判断する判別式(イ)を用いて、蓄電池
1が寿命に達したか否かを決定する(第4ステップS
4)。
Then, using the discriminant (a) for judging whether or not the value of the intrinsic discharge time (Y 1 ) with respect to the maximum discharge time (Y 2 ) before use falls below a predetermined value, the storage battery 1 Has reached the end of its life (fourth step S
4).

【0019】最後に、表示部7がその蓄電池1について
寿命の判定結果を、例えば警告ランプ(図略)等を点灯
させることによって表示する(第5ステップS5)。
Finally, the display unit 7 displays the result of the life judgment of the storage battery 1 by turning on a warning lamp (not shown) or the like (fifth step S5).

【0020】[0020]

【発明の効果】以上説明してきたように、この発明によ
れば、負荷と並列で充電器に接続して浮動充電で使用さ
れる蓄電池において、測定すべき蓄電池を一定電流値で
一定電圧まで放電させるのに要する放電時間と充電器に
よって蓄電池を寿命判定電圧まで上昇させるときの放電
立ち上がり時間とについて相関関係があることに注目
し、その相関関係を示す特性関数を予め求めておき、次
に測定すべき蓄電池固有の充電立ち上がり時間を測定
し、先の特性関数を用いて固有の充電立ち上がり時間か
ら固有の放電時間を検出し、使用前の最大放電時間に対
する固有放電時間の値が所定値以下に低下したか否かを
判断する判別式を用いて蓄電池が寿命に達したか否かを
決定することができるので、特に複雑で高価な装置、或
いは面倒な操作や技術を必要とせず、高い精度で蓄電池
の寿命を判定することができる蓄電池の寿命判定方法及
び寿命判定装置を提供することができる。
As described above, according to the present invention, in the storage battery used in floating charging by connecting to the charger in parallel with the load, the storage battery to be measured is discharged to a constant voltage with a constant current value. Note that there is a correlation between the discharge time required to drive the battery and the discharge rise time when the storage battery is raised to the life determination voltage by the charger, and the characteristic function indicating the correlation is obtained in advance and then measured. To measure the charging rise time peculiar to the storage battery, detect the discharging time peculiar from the charging rise time peculiar to the above characteristic function, and the value of the characteristic discharge time with respect to the maximum discharge time before use is below the specified value. Since it is possible to determine whether or not the storage battery has reached the end of its life by using a discriminant that determines whether or not it has decreased, a particularly complicated and expensive device, or a troublesome operation or technique. Not required, it is possible to provide a life determination method and the lifetime determination device of the storage battery capable of determining the life of the storage battery with high accuracy.

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

【図1】この発明にかかる蓄電池の寿命判定装置を示す
構成ブロック図。
FIG. 1 is a configuration block diagram showing a life determining device for a storage battery according to the present invention.

【図2】この発明の作用原理を示すグラフ。FIG. 2 is a graph showing the operating principle of the present invention.

【図3】この発明の放電時間と放電立ち上がり時間とに
ついて相関関係を示す説明図。
FIG. 3 is an explanatory diagram showing a correlation between the discharge time and the discharge rise time of the present invention.

【図4】この発明にかかる蓄電池の寿命判定装置を示す
フロ−チャト。
FIG. 4 is a flowchart showing a life determining device for a storage battery according to the present invention.

【符号の説明】[Explanation of symbols]

1 蓄電池体 2 充電器 3 電流検出部 4 電圧検出部 5 タイマ部 6 寿命判定部 7 寿命表示部 1 Storage battery body 2 Charger 3 Current detection unit 4 Voltage detection unit 5 Timer unit 6 Life judgment unit 7 Life display unit

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 負荷と並列で充電器に接続して浮動充電
で使用される蓄電池において前記蓄電池が寿命に達した
か否かを判定する蓄電池の寿命判定方法であって、 測定すべき蓄電池を一定電流値で所定電圧まで放電させ
るのに要する放電時間と充電器によって前記蓄電池を所
定の寿命判定電圧まで上昇させるときの立ち上がり時間
との相関関係を示す特性関数を予め求めておき、 測定すべき前記蓄電池固有の立ち上がり時間を測定し、 前記特性関数を用いて前記固有の立ち上がり時間から固
有の放電時間を検出し、 使用前の最大放電時間に対する前記固有放電時間の値が
所定値以下に低下したか否かを判断する判別式を用いて
前記蓄電池が寿命に達したか否かを決定することを特徴
とする蓄電池の寿命判定方法。
1. A storage battery life determination method for determining whether or not the storage battery has reached the end of life in a storage battery used in floating charging by connecting to a charger in parallel with a load, wherein the storage battery to be measured is A characteristic function showing the correlation between the discharge time required to discharge to a predetermined voltage at a constant current value and the rise time when the battery is raised to a predetermined life judgment voltage by a charger should be obtained in advance and measured. The rise time peculiar to the storage battery is measured, the peculiar discharge time is detected from the peculiar rise time using the characteristic function, and the value of the peculiar discharge time with respect to the maximum discharge time before use is reduced to a predetermined value or less. A method of determining the life of a storage battery, comprising determining whether or not the storage battery has reached the end of its life by using a discriminant that determines whether or not the life of the storage battery has expired.
【請求項2】 負荷と並列接続した蓄電池を浮動充電さ
せるとともに、このときの充電電圧よりも一段高い寿命
判定電圧で前記蓄電池に充電を行う充電器と、 前記蓄電池の充放電を検出する電流検出部と、 前記蓄電池の常用充電電圧を検出する電圧検出部と、 前記常用充電電圧から所定の寿命判定電圧に達するまで
に要する立ち上がり時間を検出するタイマ部と、 測定すべき蓄電池を一定電流値で一定電圧まで放電させ
るのに要する放電時間と充電器によって前記蓄電池を前
記寿命判定電圧まで上昇させるときの立ち上がり時間と
の相関関係を示す特性関数と、使用前の最大放電時間に
対する前記固有放電時間の値が所定値以下に低下したか
否かを判断する判別式とを予め記憶するとともに、前記
タイマ部から出力される時間信号により前記特性関数か
ら固有の放電時間を検出し、この固有の放電時間と前記
判別式とから前記蓄電池が寿命に達したか否かを決定す
る寿命判定部と、 前記蓄電池について寿命の判定結果を表示する表示部と
を備えたことを特徴とする蓄電池の寿命判定方法。
2. A charger that charges a storage battery connected in parallel with a load in a floating manner and charges the storage battery with a life determination voltage that is one step higher than the charging voltage at this time, and a current detector that detects charging and discharging of the storage battery. Unit, a voltage detection unit that detects a regular charging voltage of the storage battery, a timer unit that detects a rising time required to reach a predetermined life determination voltage from the regular charging voltage, and a storage battery to be measured with a constant current value. A characteristic function showing the correlation between the discharge time required to discharge to a constant voltage and the rise time when the storage battery is raised to the life determination voltage by the charger, and the specific discharge time with respect to the maximum discharge time before use. And a discriminant for determining whether or not the value has dropped below a predetermined value, and the time signal output from the timer section A unique discharge time is detected from the characteristic function, and a life determining unit that determines whether or not the storage battery has reached the end of its life from the unique discharge time and the discriminant, and a result of determining the life of the storage battery is displayed. A storage battery life determining method comprising: a display unit.
JP5288745A 1993-10-25 1993-10-25 Method and device for judging life of storage battery Pending JPH07120539A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5288745A JPH07120539A (en) 1993-10-25 1993-10-25 Method and device for judging life of storage battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5288745A JPH07120539A (en) 1993-10-25 1993-10-25 Method and device for judging life of storage battery

Publications (1)

Publication Number Publication Date
JPH07120539A true JPH07120539A (en) 1995-05-12

Family

ID=17734154

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5288745A Pending JPH07120539A (en) 1993-10-25 1993-10-25 Method and device for judging life of storage battery

Country Status (1)

Country Link
JP (1) JPH07120539A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102095953A (en) * 2010-11-26 2011-06-15 广东电网公司中山供电局 On-line detection method for performance of accumulator charger
CN104007393A (en) * 2014-05-23 2014-08-27 国网河南省电力公司漯河供电公司 Storage battery discharge tester and discharge current regulating and controlling method thereof
JP2014160377A (en) * 2013-02-20 2014-09-04 Panasonic Industrial Devices Sunx Co Ltd Programmable controller
CN110933827A (en) * 2018-09-20 2020-03-27 株式会社岛津制作所 X-ray imaging apparatus and method for estimating consumption of X-ray source

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102095953A (en) * 2010-11-26 2011-06-15 广东电网公司中山供电局 On-line detection method for performance of accumulator charger
JP2014160377A (en) * 2013-02-20 2014-09-04 Panasonic Industrial Devices Sunx Co Ltd Programmable controller
CN104007393A (en) * 2014-05-23 2014-08-27 国网河南省电力公司漯河供电公司 Storage battery discharge tester and discharge current regulating and controlling method thereof
CN110933827A (en) * 2018-09-20 2020-03-27 株式会社岛津制作所 X-ray imaging apparatus and method for estimating consumption of X-ray source
CN110933827B (en) * 2018-09-20 2023-11-03 株式会社岛津制作所 X-ray imaging device and method for estimating degree of consumption of X-ray source

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