JPS62200276A - Battery residue capacity meter - Google Patents

Battery residue capacity meter

Info

Publication number
JPS62200276A
JPS62200276A JP61042438A JP4243886A JPS62200276A JP S62200276 A JPS62200276 A JP S62200276A JP 61042438 A JP61042438 A JP 61042438A JP 4243886 A JP4243886 A JP 4243886A JP S62200276 A JPS62200276 A JP S62200276A
Authority
JP
Japan
Prior art keywords
circuit
voltage
battery
storage battery
open circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP61042438A
Other languages
Japanese (ja)
Inventor
Hiroyasu Tada
多田 博保
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.)
Resonac Corp
Original Assignee
Shin Kobe Electric Machinery 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 Shin Kobe Electric Machinery Co Ltd filed Critical Shin Kobe Electric Machinery Co Ltd
Priority to JP61042438A priority Critical patent/JPS62200276A/en
Publication of JPS62200276A publication Critical patent/JPS62200276A/en
Pending legal-status Critical Current

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  • Tests Of Electric Status Of Batteries (AREA)

Abstract

PURPOSE:To enable continuous display of the residual capacity of a storage battery accurately regardless of duration of a discharge or stoppage, by a method wherein at the moment when the battery voltage goes down with the application of a load to the storage battery, the voltage held in an analog peak holding circuit is memorized as open circuit voltage while the residual capacity is outputted. CONSTITUTION:When a switch 6 is closed, an (F), (E) and (T) switches 7 are turned ON, a divided open circuit voltage is charged into an analog peak holding circuit 4 through an operational amplifier 3 and memorized. When the battery voltage is lowered with the application of a load on a storage battery 1, the electric charge of a capacitor 9 of the circuit 4 is discharged gradually by an impedance in the circuit 4. Because creating a virtual battery discharge property, the drop in the lowered potential of the capacitor 9 can be changed easily depending on the resistance of the circuit 4 or the capacitance of the battery 1, the open circuit voltage rises higher than the voltage memorized in the circuit 4, it is recharged into the circuit 4 via an antireversion diode 8 to be make up for as new open circuit voltage. This enables continuous and accurate display of a residual capacity of the battery regardless of the duration of discharge or stoppage.

Description

【発明の詳細な説明】 産業上の利用分骨 本発明は蓄電池の残存容量を、負荷の有無に関係なく連
続的にメータあるいはデジタル表示する機能を有した蓄
電池残存容量計に関するものである。
DETAILED DESCRIPTION OF THE INVENTION Industrial Application The present invention relates to a storage battery remaining capacity meter that has a function of continuously displaying the remaining capacity of a storage battery with a meter or digitally regardless of the presence or absence of a load.

従来の技術 一般に、蓄電池の放電状態を知るためには蓄電池の電解
液比重を測定し、その値から残存容′!#ヲ推定する方
法が最も正確である。
Conventional technology Generally, in order to know the discharge state of a storage battery, the specific gravity of the electrolyte in the storage battery is measured, and the remaining capacity is determined from that value. The method of estimating # is the most accurate.

発明が解決しようとする問題点 このため電解液比i#−を電気的に計則し、醒解液比重
値を容量に換算して表示する方法としては、従来、所定
の比重を有したフロート等のセンサーを直接覗解液に挿
入しフロート変位を・嘔気信号に変換して残存容量を表
示する方法が考えらオtている。しかし乍らこの方法で
は、畜″屯池円に発生する気泡がフロート表面に付着し
て誤動作を起したり、微少変位を電気匿号(二変換する
ため回路的に複雑であり、さらにフォークリフト等動力
車用蓄電池への適用は振動を受けるため難しいといった
問題があった。
Problems to be Solved by the Invention For this reason, as a method for electrically calculating the electrolyte ratio i#- and converting the specific gravity value of the clarified solution into capacity and displaying it, conventional methods have been to use a float having a predetermined specific gravity. A method of directly inserting a sensor such as the float into the solution and converting the float displacement into a nausea signal to display the remaining capacity has been considered. However, with this method, air bubbles generated in the float may adhere to the surface of the float, causing malfunctions, and the circuit is complicated as minute displacements are converted into electrical codes (2). There was a problem in that it was difficult to apply it to storage batteries for power vehicles because it was subject to vibration.

電解液の屈折率を利用する方法として光学式、超音波式
のものも開発されているが、光学式については、プリズ
ム又はガラスファイバー等のセンサーを使用して一定の
光量をセンサーに与え、電解液比重の@度によって光源
の光量が便化することを利用したものであるが、センサ
ー表面C二汚れ等が付着すると誤動作をする欠点があり
、超音波式については、電解液比重の超音波伝播特性を
利用して超音波送受信部と超音波反射部の間の電解液中
の音波速度ラミ計測し電気信号に変換して市解液比重や
残存容量を表示するが、電気回路が非常に複雑になるこ
とから小形化が―しくフォークリフト相等動力中には不
適当である等の欠点がある。
Optical and ultrasonic methods have also been developed that utilize the refractive index of the electrolyte, but the optical method uses a sensor such as a prism or glass fiber to apply a certain amount of light to the sensor, and This method takes advantage of the fact that the amount of light from the light source changes depending on the specific gravity of the electrolyte, but it has the disadvantage of malfunctioning if dirt, etc. adheres to the sensor surface. The propagation characteristics are used to measure the velocity of sound waves in the electrolyte between the ultrasonic transmitter/receiver and the ultrasonic reflector, and the information is converted into an electrical signal to display the specific gravity and remaining capacity of the electrolyte, but the electrical circuit is very difficult to use. Due to its complexity, it is difficult to downsize and is unsuitable for use in a forklift truck.

間四点を解決するための手段 本発明は十Neの問題点を解決したもので、即ち、蓄電
池“電圧を分圧する回路Cニオペアンプ等を接続し、該
オペアンプ等で得られる電圧にアナログピーク保持回路
を接続し、該アナログピーク保持回路に接続されたオペ
アンプ等の増幅器と、該増幅器の出力(−接続されたメ
ータ等の表示器とを備えた蓄題池残存容重計である。
The present invention solves the problems of 10Ne, that is, by connecting a storage battery voltage dividing circuit C ni operational amplifier etc., the voltage obtained by the operational amplifier etc. has an analog peak. This is a storage battery residual capacity weight meter connected to a holding circuit, and equipped with an amplifier such as an operational amplifier connected to the analog peak holding circuit, and an indicator such as a meter connected to the output of the amplifier.

圧)は@重油のシ解液比重と高度な相関性を持っている
ことに着目し、開路“電圧を蓄電池の仮想の枚埴特性を
持ったアナログピーク保持回路に記憶し、メータ等の表
示器で表示するようにしたものである。フォークリフト
等の動力用畜這池は負荷(放電々流)の大小によって蓄
電池電圧は大きく変動するため、負荷があるときは前記
アナログピーク保持回路の蓄電池の仮想放題特性から残
存容量を表示する。又無負荷時において苺電池開路醗圧
が仮想放電特性より上昇すると再びアナログピーク保持
回路に開路室圧として記憶され、仮想放電特性が修旧さ
れて正確に残存容量を表示で考るようにしたものである
Focusing on the fact that the pressure (pressure) has a high correlation with the specific gravity of the silica liquid of heavy oil, we stored the open circuit voltage in an analog peak holding circuit with a virtual plate characteristic of a storage battery, and displayed it on a meter, etc. In livestock storage ponds used for powering forklifts, etc., the storage battery voltage fluctuates greatly depending on the size of the load (discharge current), so when there is a load, the voltage of the storage battery in the analog peak holding circuit is The remaining capacity is displayed from the virtual unlimited characteristic.Also, when the strawberry battery open circuit pressure rises above the virtual discharge characteristic during no-load, it is stored again as the open circuit chamber pressure in the analog peak holding circuit, and the virtual discharge characteristic is corrected to accurately display the remaining capacity. This allows you to consider the remaining capacity by displaying it.

実施例 本発明の一実施例を説明する。Example An embodiment of the present invention will be described.

】は蓄電池、2は蓄電池電圧を分圧する回路、3は分圧
された蓄電池電圧を実用電圧(46,3V〜50.8■
)l二f換するためのオペアンプである。
] is a storage battery, 2 is a circuit that divides the storage battery voltage, and 3 is a circuit that divides the voltage of the storage battery into a practical voltage (46.3V to 50.8V).
) This is an operational amplifier for converting l2f.

前記央用電圧はアナログピーク保持回路4に逆流防止用
ダイオード8を介して接続される。アナログピーク保持
回路4は表示器5ζ二接続されている。炉に具体的に説
明するとスイッチ6が投入されると7のF、JTスイッ
チがオンとなり、分圧された開路電圧がオペアンプ3を
通し、アナログピーク保持回路4に充電され、記憶され
る。次【ユ蓄重油1に負荷が加わり、蓄電池電圧が低下
すると、アナログピーク保持回路4のコンデンサ9の電
荷はアナログピーク保持回路4内のインピーダンスによ
って徐々に放電される。
The central voltage is connected to the analog peak holding circuit 4 via a backflow prevention diode 8. The analog peak holding circuit 4 is connected to the display device 5ζ. To explain specifically about the furnace, when the switch 6 is turned on, the F and JT switches 7 are turned on, and the divided open circuit voltage passes through the operational amplifier 3 and is charged and stored in the analog peak holding circuit 4. When a load is applied to the stored fuel oil 1 and the storage battery voltage decreases, the charge in the capacitor 9 of the analog peak holding circuit 4 is gradually discharged by the impedance within the analog peak holding circuit 4.

この時、このコンデンサ9の電位低下は仮想の蓄電池放
電特性を持たせるため、アナログピーク保持回路4の抵
抗又はコンデンサの容量によって容易に変えることがで
き、る。次に蓄電池1が体Iヒ(無負荷)し、開路電圧
が上昇してアナログピーク保持回路4に記憶されている
電圧より高くなると、逆流防止ダイオード8を経て、再
びアナログピーク保持回路4に光電され、新しい開路電
圧として補正される。
At this time, the potential drop of the capacitor 9 can be easily changed by changing the resistance of the analog peak holding circuit 4 or the capacitance of the capacitor in order to have virtual storage battery discharge characteristics. Next, when the storage battery 1 is in a low state (no load) and the open circuit voltage increases and becomes higher than the voltage stored in the analog peak holding circuit 4, a photovoltaic signal is applied to the analog peak holding circuit 4 again via the reverse current prevention diode 8. and corrected as the new open circuit voltage.

以上のように蓄電池1の両端に接続するだけで、同且つ
、放電中、休止中にかかわらず、連続的、IE確に畜璽
油の残存容tv表示することができる。
By simply connecting both ends of the storage battery 1 as described above, it is possible to continuously and accurately display the remaining capacity of the slag oil (TV) regardless of whether it is discharging or not.

発明の効果 ヒ述のように、本発明は電解液中にセンサー等を挿入す
ることなく、蓄電池の残存容量を放電中、休【ヒ中に関
係なく正確に月つ連続的に表示できる優れた利点乞有す
るものである。
Effects of the Invention As described above, the present invention is an excellent method that can accurately and continuously display the remaining capacity of a storage battery regardless of whether it is being discharged or not, without inserting a sensor or the like into the electrolyte. It has its advantages.

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

第一図は本発明の一実施例を示す回路図である。 1は蓄電池、2は分圧回路、3はオペアンプ、4はアナ
ログピーク回路、5は表示器、6はスイッチ、7はF、
に、Tスイッチ、 8は逆流防止用ダイオード、9はコ
ンデンサ
FIG. 1 is a circuit diagram showing an embodiment of the present invention. 1 is a storage battery, 2 is a voltage dividing circuit, 3 is an operational amplifier, 4 is an analog peak circuit, 5 is a display, 6 is a switch, 7 is F,
, T switch, 8 is reverse current prevention diode, 9 is capacitor

Claims (1)

【特許請求の範囲】[Claims] 蓄電池の仮想の放電特性を有したアナログピーク保持回
路を備え、蓄電池に負荷が加わり、蓄電池電圧が低下し
た瞬間に前記アナログピーク保持回路に保持された電圧
を開路電圧として記憶し、蓄電池の残存容量を出力する
ことを特徴とする蓄電池残存容量計。
It is equipped with an analog peak holding circuit that has virtual discharge characteristics of the storage battery, and at the moment when a load is applied to the storage battery and the storage battery voltage drops, the voltage held in the analog peak holding circuit is stored as an open circuit voltage, and the remaining capacity of the storage battery is stored. A storage battery remaining capacity meter that outputs .
JP61042438A 1986-02-27 1986-02-27 Battery residue capacity meter Pending JPS62200276A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61042438A JPS62200276A (en) 1986-02-27 1986-02-27 Battery residue capacity meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61042438A JPS62200276A (en) 1986-02-27 1986-02-27 Battery residue capacity meter

Publications (1)

Publication Number Publication Date
JPS62200276A true JPS62200276A (en) 1987-09-03

Family

ID=12636074

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61042438A Pending JPS62200276A (en) 1986-02-27 1986-02-27 Battery residue capacity meter

Country Status (1)

Country Link
JP (1) JPS62200276A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6480887A (en) * 1987-09-24 1989-03-27 Shin Kobe Electric Machinery Residual capacity meter for storage battery
JPH03285188A (en) * 1990-03-30 1991-12-16 Anton Bauer Inc Battery system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6480887A (en) * 1987-09-24 1989-03-27 Shin Kobe Electric Machinery Residual capacity meter for storage battery
JPH03285188A (en) * 1990-03-30 1991-12-16 Anton Bauer Inc Battery system

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