JPH0318231A - Charging method - Google Patents
Charging methodInfo
- Publication number
- JPH0318231A JPH0318231A JP1153140A JP15314089A JPH0318231A JP H0318231 A JPH0318231 A JP H0318231A JP 1153140 A JP1153140 A JP 1153140A JP 15314089 A JP15314089 A JP 15314089A JP H0318231 A JPH0318231 A JP H0318231A
- Authority
- JP
- Japan
- Prior art keywords
- storage battery
- charging
- data
- discharge state
- storage device
- 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.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は電気自動車用の蓄電池等走行車輌の動力源とし
て用いられる蓄電池を適切に充電するためのものである
。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is for appropriately charging a storage battery used as a power source for a traveling vehicle, such as a storage battery for an electric vehicle.
従来技術とその問題点
電気自動車は騒音や大気汚染の公害源とならず、また石
油資源を消費することなく走行可能であり、内燃機関を
用いた一般の自動車にない多くの長所を有しているが、
反面まだ劣っている点もいくつかある為、現在も改良の
研究が続（プられている。Conventional technology and its problems Electric vehicles do not cause noise or air pollution, can run without consuming petroleum resources, and have many advantages that ordinary vehicles using internal combustion engines do not have. There are, but
On the other hand, there are still some areas where it is inferior, so research into improving it is still ongoing.
この欠点の一つに蓄電池の寿命が比較的短い為、経済性
が余り良くないことが挙げられてＪ３り、その改良の仙
究が続（プられている。One of the drawbacks of this is that the lifespan of the storage battery is relatively short, so it is not very economical, and research into improving it continues.
また、別の欠点として比較的蓄電池の充電に要する時間
が長くかかることが指摘されている。It has also been pointed out that another drawback is that it takes a relatively long time to charge the storage battery.
電気自動車の充電方法として従来から比較的よく用いら
れている方法は準定電流定電圧充電と呼ばれる方法で、
充電器の電源トランスの出力特性を利用して蓄電池の端
子電圧が低い時の充電電流をやや多く流すようにし、充
電の進行による蓄電池の端子電圧上昇どほぼ反比例して
充電電流を減らしながら充電を続【プ、蓄電池の端子電
圧が一定値を越えるとタイマーを起動させ、その後タイ
マで設定された時間が経過した時点で充電を終了するこ
とを基本にしたものである。A method that has been relatively commonly used to charge electric vehicles is a method called quasi-constant current and constant voltage charging.
By using the output characteristics of the power supply transformer of the charger, a slightly larger charging current is allowed to flow when the terminal voltage of the storage battery is low, and as the terminal voltage of the storage battery increases as charging progresses, the charging current is reduced in almost inverse proportion to the charging process. The basic idea is that a timer is started when the terminal voltage of the storage battery exceeds a certain value, and charging is then terminated when the time set by the timer has elapsed.
この方法の場合、蓄電池の放電状態が異なっても充電初
期の蓄電池の端子電圧はさほど変わらないため、蓄電池
の放電量が多かった場合に充電電流を小さく設定すると
充電所要時間が増加し、逆に蓄電池の放電量が少なかっ
た場合に充電電流を大きく設定すると発熱などにより蓄
電池を劣化させる結果となり、適切な放電状態に合わせ
て適切な充電電流を選択することができない問題があっ
た。In this method, the terminal voltage of the storage battery at the beginning of charging does not change much even if the discharge state of the storage battery changes, so if the charging current is set to a small value when the amount of discharge of the storage battery is large, the required charging time will increase, and vice versa. If the charging current is set high when the discharge amount of the storage battery is small, the storage battery will deteriorate due to heat generation, etc., and there is a problem that it is not possible to select an appropriate charging current according to the appropriate discharge state.
他にも急速充電について、これまで幾つかの方法が研究
されてはきているが、蓄電池の放電状態に合わせて充電
をすることが難しいため、結局充電時間を短くすると、
一般的に蓄電池が短寿命となる傾向があり、改善は困難
であるとされてきた。Several other methods of rapid charging have been studied so far, but it is difficult to charge according to the discharge state of the storage battery, so in the end, shortening the charging time results in
In general, storage batteries tend to have a short lifespan, and it has been considered difficult to improve this problem.
また、充電の過不足が生じ易く、蓄電池の寿命を短くす
る欠点があった。In addition, there is a drawback that overcharging or undercharging tends to occur, which shortens the life of the storage battery.
発明の目的
本発明の目的は電気自動車用の蓄電池等走行車輌の動力
源として用いられる蓄電池を短時間に適切に充電する方
法を提供し、蓄電池の長寿命化と充電時間の短縮化を図
るものである。Purpose of the Invention The purpose of the present invention is to provide a method for appropriately charging a storage battery used as a power source for a traveling vehicle, such as a storage battery for an electric vehicle, in a short time, thereby extending the life of the storage battery and shortening the charging time. It is.
発明の構或
従来の充電方法は、充電器側で蓄電池の放電状態につい
て何等データを与えられることなく充電を開始していた
。この為、放電電気量が多くても少なくても同じ充電電
流で充電を開始することとなり、充電電流が大きすぎる
と蓄電池を劣化させ、逆に充電電流が小さすぎると充電
所要時間が長くなるという問題があった。その上、充電
量の過不足が生じることもあった。Structure of the Invention In the conventional charging method, charging was started without being given any data regarding the discharge state of the storage battery on the charger side. For this reason, charging will start with the same charging current regardless of whether the amount of discharged electricity is large or small. If the charging current is too large, it will deteriorate the storage battery, and conversely, if the charging current is too small, the time required for charging will increase. There was a problem. Moreover, there were cases where the amount of charge was too much or too little.
これに対し、本発明の充電方法は、放電中にＩＣカード
等の小形のデジタルデータ記憶装置に蓄電池の放電状態
に関するデータを記憶保管し、これを充電器に伝達する
。この結果、放電状態に応じて充電電流を増減ずること
ができ、充電時間を蓄電池を劣化させることなく短縮す
ることが出来る。In contrast, in the charging method of the present invention, data regarding the discharge state of the storage battery is stored in a small digital data storage device such as an IC card during discharging, and the data is transmitted to the charger. As a result, the charging current can be increased or decreased depending on the discharge state, and the charging time can be shortened without deteriorating the storage battery.
すなわち、蓄電池の放電が深い場合、初期の充電電流を
大きくして充電時間を短くし、充電が完了に近づけば充
電電流を減らし、蓄電池の発熱を少なくして劣化を防ぐ
。また、充電の過不足を生じないため、蓄電池の寿命は
長くなる。That is, when the storage battery is deeply discharged, the initial charging current is increased to shorten the charging time, and as charging approaches completion, the charging current is reduced to reduce heat generation in the storage battery and prevent deterioration. Furthermore, since there is no over- or under-charging, the life of the storage battery is extended.
このデジタルデータ記憶装置は小形のものであるので、
車輌から取り外し充電器に接続するのは容易である。Since this digital data storage device is small,
It is easy to remove from the vehicle and connect to a charger.
実施例
以下実施例によって詳細を説明する。第１図は本発明に
よる充電方式に用いるデジタルデータ記憶装置の一例を
示すブロック図である。EXAMPLES Details will be explained below using examples. FIG. 1 is a block diagram showing an example of a digital data storage device used in the charging method according to the present invention.
第１図において１は蓄電池のデータ入力用インターフェ
ースで２は中央処理装置、３はプログラム用メモリー、
４はデータ用メモリー、５は充電器制御信号出力用イン
ターフェースである。In Fig. 1, 1 is a storage battery data input interface, 2 is a central processing unit, 3 is a program memory,
4 is a data memory, and 5 is an interface for outputting a charger control signal.
第１図のデジタルデータ記憶装置はまず電気自動車に取
り付けて使用し、プログラム用メモリ３に書かれたプロ
グラムに従って中央処理装置２が働き、データ入力用イ
ンターフェース１を経由して蓄電池の主として放電状態
に関するデータが４のデータ用メモリーに保管される。The digital data storage device shown in FIG. 1 is first installed in an electric vehicle and used, and the central processing unit 2 operates according to the program written in the program memory 3, and the data is sent via the data input interface 1 mainly to the discharge state of the storage battery. Data is stored in 4 data memories.
その後、蓄電池を充電するときにはこのデジタルデータ
記憶装置を電気自動車から取り外し、５の充電器制御信
号出力用インターフェースを介して充電器に接続する。Thereafter, when charging the storage battery, this digital data storage device is removed from the electric vehicle and connected to the charger via the charger control signal output interface 5.
なお、このデジタルデータ記憶装置はＩＣカ一５
ドと呼ばれる小形のものであるため、車輌に取り付（ノ
たり、また取り外して充電器に取り付番プたりすること
が極めて容易に出来る。Since this digital data storage device is a small device called an IC card, it is extremely easy to attach it to a vehicle or remove it and attach it to a charger.
このＩＣカードには蓄電池の放電状態に関するデータが
保管されており、このデータに基づき充電を制御するこ
とができる。This IC card stores data regarding the discharge state of the storage battery, and charging can be controlled based on this data.
すなわち、プログラム用メモリー３に書かれたプログラ
ムに従って中央処理装置２が働き、５の充電器制御信号
出力用インターフェースからの出力信号で充電電流を適
切に調節することができ、短時間で蓄電池を劣化させる
ことなく充電を行うことが可能である。In other words, the central processing unit 2 operates according to the program written in the program memory 3, and the charging current can be appropriately adjusted by the output signal from the charger control signal output interface 5, so that the storage battery deteriorates in a short time. It is possible to charge the battery without causing any problems.
この場合、充電は蓄電池の放電状態に応じて最適の方法
を選択できるので充電所要時間の短縮ができるばかりで
なく蓄電池を過充電や充電不足で劣化させることもない
。In this case, since the optimal charging method can be selected depending on the discharge state of the storage battery, not only the required charging time can be shortened, but also the storage battery will not deteriorate due to overcharging or undercharging.
発明の効果
本発明の充電方法を従来法による充電と比較した結果、
前者は蓄電池の寿命を後者よりも１０％長くした上で充
電時間を２０〜４０％短縮するこ６
とが可能であることが判明した。Effects of the Invention As a result of comparing the charging method of the present invention with charging by the conventional method,
It has been found that the former can extend the life of the storage battery by 10% and shorten the charging time by 20 to 40% compared to the latter.
第１図は本発明の充電方法に用いるデジタルデータ記憶
装置の一例を示すブロック図。１・・・蓄電池のデータ
人ノコ用インターフェース、４・・・データ用メモリー
５・・・充電器制御信号出力用インタフェース
第１FIG. 1 is a block diagram showing an example of a digital data storage device used in the charging method of the present invention. 1... Interface for storage battery data man saw, 4... Memory for data 5... Interface for outputting charger control signal 1st
Claims (1)
な構造の小形のデジタルデータ記憶装置に、該蓄電池の
主として放電状態に関するデータを記憶保管し、該デジ
タルデータ記憶装置のデータに基づき充電量あるいは充
電電流を増減することを特徴とする充電方法。A small digital data storage device that is detachable from the vehicle and powered by the stored power of the storage battery stored in the vehicle stores and stores data mainly related to the discharge state of the storage battery, and calculates the amount of charge or the amount of charge based on the data in the digital data storage device. A charging method characterized by increasing or decreasing charging current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1153140A JP2703348B2 (en) | 1989-06-15 | 1989-06-15 | Charging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1153140A JP2703348B2 (en) | 1989-06-15 | 1989-06-15 | Charging method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0318231A true JPH0318231A (en) | 1991-01-25 |
| JP2703348B2 JP2703348B2 (en) | 1998-01-26 |
Family
ID=15555887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1153140A Expired - Fee Related JP2703348B2 (en) | 1989-06-15 | 1989-06-15 | Charging method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2703348B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05227669A (en) * | 1992-02-14 | 1993-09-03 | Tatsuno Co Ltd | Battery charger for electric vehicles |
| JPH06188031A (en) * | 1992-12-16 | 1994-07-08 | Atom Kk | Protective circuit of battery |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6055829A (en) * | 1983-09-02 | 1985-04-01 | ダイハツ工業株式会社 | Charger of electric motor vehicle |
| JPS6129079A (en) * | 1984-07-20 | 1986-02-08 | Nec Corp | Secondary battery made into ic |
-
1989
- 1989-06-15 JP JP1153140A patent/JP2703348B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6055829A (en) * | 1983-09-02 | 1985-04-01 | ダイハツ工業株式会社 | Charger of electric motor vehicle |
| JPS6129079A (en) * | 1984-07-20 | 1986-02-08 | Nec Corp | Secondary battery made into ic |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05227669A (en) * | 1992-02-14 | 1993-09-03 | Tatsuno Co Ltd | Battery charger for electric vehicles |
| JPH06188031A (en) * | 1992-12-16 | 1994-07-08 | Atom Kk | Protective circuit of battery |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2703348B2 (en) | 1998-01-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |