JP2000069687A - Battery charging device for small-size electric vehicle - Google Patents

Battery charging device for small-size electric vehicle

Info

Publication number
JP2000069687A
JP2000069687A JP10236917A JP23691798A JP2000069687A JP 2000069687 A JP2000069687 A JP 2000069687A JP 10236917 A JP10236917 A JP 10236917A JP 23691798 A JP23691798 A JP 23691798A JP 2000069687 A JP2000069687 A JP 2000069687A
Authority
JP
Japan
Prior art keywords
charging
predetermined
value
voltage
voltage value
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
JP10236917A
Other languages
Japanese (ja)
Inventor
Shigenori Kimura
重則 木村
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.)
Kubota Corp
Original Assignee
Kubota Corp
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 Kubota Corp filed Critical Kubota Corp
Priority to JP10236917A priority Critical patent/JP2000069687A/en
Publication of JP2000069687A publication Critical patent/JP2000069687A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries

Abstract

PROBLEM TO BE SOLVED: To avoid insufficient charging condition, even when charging is performed in a condition near full-charging condition by continuing the charging with a current lower than the charging current when the voltage reaches the predetermined value and then completing the charging, when the detected voltage value reaches again the predetermined voltage value. SOLUTION: Information on a voltage detecting means 13 is input to a controller 8, and a timer 15 determines whether or not the terminal voltage of both batteries 7A, 7A during the charging operation with reach the predetermined voltage value, corresponding to the full-charging condition within a predetermined time. Next, the voltage reaches the predetermined voltage value, charging is performed with a second predetermined current value lower than the predetermined current value and when the terminal voltage values reaches the predetermined voltage value, charging is immediately conducted with a third predetermined current value, which is equal to the half of the second predetermined current value. When the voltage again reaches the predetermined voltage value, the charging is stopped and is completed. Thereby, even if battery capacity is lower, charging can be made satisfactorily up to a fully charged condition even in the charging condition where battery capacity is not very low.

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、放電量に見合った
充電を行う小型電動車のバッテリー充電装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery charger for a small electric vehicle that performs charging in accordance with the amount of discharge.

【0002】[0002]

【従来の技術】従来、この種の小型電動車のバッテリー
充電装置にあっては、自然放電のみでほとんど使用して
いないままで、充電を行うようなことをすると、充電し
てから短時間でバッテリーの端子電圧が所定電圧値にな
るため、その検出結果により直ちに、満充電状態にする
ための補充電を所定電流値で所定時間を行う充電方法を
とっていた。
2. Description of the Related Art Conventionally, in a battery charger for a small electric vehicle of this type, if the battery is charged only by natural discharge and is hardly used, it takes a short time after charging. Since the terminal voltage of the battery becomes a predetermined voltage value, a charging method is employed in which auxiliary charging for bringing the battery into a fully charged state is performed for a predetermined time at a predetermined current value based on the detection result.

【0003】[0003]

【発明が解決しようとする課題】しかしながら、上記従
来の小型電動車のバッテリー充電装置にあっては、満充
電に近いがために充電開始からそれほど時間が経過して
いない状態でも補充電状態に切り換えるための所定電圧
値にバッテリー端子電圧が達するのであって、単にその
結果に基づいて所定電流値で所定時間充電するだけで
は、満充電に近いもののその満充電状態となる前に充電
が終了する虞れが高かった。そのため、その状態で小型
電動車を使用すると、バッテリー容量の表示において、
それほど走行していないにもかかわらず満充電状態の表
示より1ポイント低下した状態に表示が切り替わり易
く、使用者にとってバッテリーが正常なものかどうか疑
問を抱かせる虞れがあった。特に、工場出荷後の最初の
使用において、そのような傾向がある。
However, in the above-mentioned conventional battery charger for a small electric vehicle, the battery is switched to the supplementary charge state even when not much time has elapsed since the start of charging because the battery is almost fully charged. The battery terminal voltage reaches a predetermined voltage value, and if the battery is simply charged at a predetermined current value for a predetermined time based on the result, charging may be completed before the full charge state is reached although the battery is almost fully charged. It was expensive. Therefore, if a small electric vehicle is used in that state,
The display is easily switched to a state that is one point lower than the display of the fully charged state even though the vehicle is not traveling so much, and there is a possibility that the user may be questioned whether the battery is normal or not. In particular, there is such a tendency in the first use after factory shipment.

【0004】本発明は、上記実情に鑑みてなされたもの
であって、満充電に近い状態で充電する場合でも、充電
不足状態とならないようにできる小型電動車のバッテリ
ー充電装置の提供を目的とする。
The present invention has been made in view of the above circumstances, and has as its object to provide a battery charging device for a small electric vehicle that can prevent the battery from being in an insufficiently charged state even when the battery is charged in a state near full charge. I do.

【0005】[0005]

【課題を解決するための手段】(構成) 本発明の請求
項1にかかる小型電動車のバッテリー充電装置は、バッ
テリーの端子電圧を検出する電圧検出手段を設けるとと
もに、前記バッテリーに充電を開始してから所定時間を
経過した後に前記電圧検出手段での検出電圧値が所定電
圧値に達したときは、その所定電圧値に達した後は予め
設定された所定電流値の電流で充電を第2所定時間継続
して充電を完了する通常充電手段を設けるとともに、前
記所定時間以内に前記電圧検出手段が前記所定電圧値に
達したことを検出すると、充電用の電流値を前記所定電
圧値に達する前における充電電流よりも電流値の低い電
流で充電を継続し、その電流値の低い電流での充電時に
検出電圧値が再度前記所定電圧値に達すると充電を完了
する補助充電手段を設けてあることを特徴構成とする。
According to a first aspect of the present invention, there is provided a battery charging device for a small electric vehicle, comprising voltage detecting means for detecting a terminal voltage of the battery, and charging the battery. When a voltage value detected by the voltage detecting means reaches a predetermined voltage value after a lapse of a predetermined time, charging is performed with a current having a predetermined current value after reaching the predetermined voltage value. Normal charging means for completing charging continuously for a predetermined time is provided, and when the voltage detecting means detects that the predetermined voltage value has been reached within the predetermined time, the charging current value reaches the predetermined voltage value. The auxiliary charging means continues charging with a current having a lower current value than the previous charging current, and completes charging when the detected voltage value reaches the predetermined voltage value again when charging with the current having a lower current value. It is characterized by being provided.

【0006】(作用) 本発明の請求項1にかかる構成
によれば、満充電状態から余り使用されまま充電が行わ
れるような場合には、充電開始時から予め設定された所
定時間までの間にバッテリーの端子間電圧が満充電状態
に対応する所定電圧値に達するのであって、そのときに
は、先の充電時よりも低い電流値の電流によって充電を
継続して、その低い電流値の電流での充電時に前記所定
電圧値がバッテリー端子電圧として検出されると充電を
完了するから、殆ど放電が成されていない状態で充電す
る際において、満充電状態になっていないにもかかわら
ず充電が完了してしまうようなことはなくなる。
(Operation) According to the configuration of the first aspect of the present invention, in the case where charging is performed while the battery is fully used from the fully charged state, the charging is performed from the start of charging to a predetermined time set in advance. In this case, the voltage between the terminals of the battery reaches a predetermined voltage value corresponding to the fully charged state. At that time, charging is continued with a current having a lower current value than at the time of the previous charging, and the current having the lower current value is used. When the predetermined voltage value is detected as the battery terminal voltage at the time of charging, charging is completed. When charging in a state where discharge is hardly performed, charging is completed even though the battery is not fully charged. There is no such thing as doing it.

【0007】(効果) 従って、本発明の請求項1にか
かる構成によれば、バッテリー容量が低くなった状態で
の通常の充電は満充電状態に良好に充電することが可能
であるとともに、バッテリー容量が余り低くなっていな
い状態での充電時においても良好に満充電状態に充電で
きる。
(Effect) Therefore, according to the configuration of the first aspect of the present invention, normal charging in a state where the battery capacity is low can be favorably charged to a fully charged state, and the battery can be properly charged. Even when charging in a state where the capacity is not so low, the battery can be charged to a fully charged state.

【0008】(構成) 本発明の請求項2にかかる小型
電動車のバッテリー充電装置は、請求項1に記載のもの
において、前記所定時間以内に前記電圧検出手段が前記
所定電圧値に達したことを検出すると、充電用の電流値
を前記通常充電手段による充電時の前記所定時間経過後
の前記所定電流値よりも低く設定した電流で充電を継続
し、その所定電流値より低い電流での充電時に検出電圧
値が再度前記所定電圧値に達すると充電を完了するよう
に補助充電手段を構成してあることを特徴構成とする。
According to a second aspect of the present invention, in the battery charger for a small electric vehicle according to the first aspect, the voltage detecting means has reached the predetermined voltage value within the predetermined time. Is detected, the charging is continued with a current set to be lower than the predetermined current value after the predetermined time elapses during the predetermined time during charging by the normal charging means, and charging with a current lower than the predetermined current value is performed. The auxiliary charging means is configured to complete charging when the detected voltage value reaches the predetermined voltage value again.

【0009】(作用) 本発明の請求項2にかかる構成
によれば、通常の充電における所定電流値より低い電流
での充電時に検出電圧値が再度前記所定電圧値に達する
と充電を完了するように補助充電手段を構成してあるか
ら、通常の充電時よりも徐々に補助的な充電を行うもの
となっており、充電が十分なされないまま、バッテリー
の端子間電圧が高くなるような不具合を回避しながら
も、確実性の高い充電を行える。
(Operation) According to the configuration of the second aspect of the present invention, when the detected voltage value reaches the predetermined voltage value again when charging with a current lower than the predetermined current value in normal charging, the charging is completed. Since the auxiliary charging means is configured, the auxiliary charging is performed gradually as compared with the normal charging, and there is a problem that the voltage between the terminals of the battery becomes high without sufficient charging. It is possible to perform highly reliable charging while avoiding it.

【0010】(効果) 従って、本発明の請求項2にか
かる構成によれば、殆ど使用していないバッテリーに対
して充電する場合でも正常に満充電状態となるように充
電することが確実性高く行うことができる。
(Effects) Therefore, according to the configuration of the second aspect of the present invention, it is highly reliable to charge a battery that is hardly used, so that the battery is normally fully charged. It can be carried out.

【0011】[0011]

【発明の実施の形態】以下、本発明の実施の形態を図面
に基づいて説明する。図1に、小型電動車を示してい
る。この小型電動車は、操縦ハンドル1で操向操作され
る単一輪の前車輪2と、電動モータ3で駆動される左右
一対の後車輪4,4とで支持された車体フレーム5に、
搭乗用の座席6、電源7、制御装置8等を装備して構成
している。
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a small electric vehicle. The small electric vehicle has a body frame 5 supported by a single front wheel 2 steered by a steering handle 1 and a pair of left and right rear wheels 4 and 4 driven by an electric motor 3.
It is equipped with a boarding seat 6, a power supply 7, a control device 8, and the like.

【0012】そして、電源7は、左右一対の充放電可能
なバッテリー7A,7Aを搭載装備しているものであっ
て、両バッテリー7A,7A間箇所に充電器9を配備し
ている。図2に示すように、充電器9は、バッテリー7
A,7A及び外部電源へのプラグ10に接続している。
この充電器9による充電は、前記プラグ10を商用電源
に接続して行うものであって、充電状態を表示する表示
器11に充電完了時にはランプが点灯するようにしてい
る。また、直列接続された両バッテリー7A,7Aの端
子間電圧を検出する電圧検出手段13を設けている。そ
して、電圧検出手段13の情報は、マイクロコンピュー
タ等によって制御するように構成されている制御装置8
に入力される。図2に示すように、制御装置8には、充
電開始信号、つまり前記プラグ10を商用電源に接続し
たときの供給電流により起動されるタイマー15を備え
ている(図3におけるステップS1)とともに、このタ
イマー15はこの起動時からの計時を行い、予め設定さ
れる所定時間T1以内に、充電に伴う両バッテリー7
A,7Aの端子間電圧値が満充電状態に対応する所定電
圧値Vに達するか否か判断している。そして、所定時間
T1を越えても端子間電圧値が所定電圧値Vに達してい
ない場合は、前記所定電圧値Vに達するまで所定電流値
I1で充電し(図3におけるステップS2,ステップS
3)、所定電圧値Vに達すると、所定電流値I1より低
い第2所定電流値I2で第2所定時間T2充電する(図
3におけるステップS3,S4)(図4(イ)参照)。
そして、その制御を充電器9に備えられている通常充電
手段16で行う。また、前記所定時間T1以内にバッテ
リー7A,7Aの端子間電圧の値が前記所定電圧値Vに
達した場合は、直ちに前記第2所定電流値I2の2分の
1の値に設定された第3所定電流値I3に設定される電
流で充電する(図3におけるステップS3,S6,S
7,S8)。その状態で充電していくと、図4(ロ)に
示すように、バッテリー7A,7Aの端子間電圧は前記
所定電圧値Vより一時的に低下しているのであるが、再
度その充電に伴い前記所定電圧値Vに達すると、充電を
停止するように制御する通常とは異なる充電を行う。こ
の通常とは異なる充電を行う補助充電手段22を充電器
9に設けている。
The power source 7 has a pair of left and right rechargeable batteries 7A, 7A mounted thereon, and a charger 9 is provided between the two batteries 7A, 7A. As shown in FIG. 2, the charger 9 includes a battery 7
A, 7A and plug 10 to an external power supply.
The charging by the charger 9 is performed by connecting the plug 10 to a commercial power supply, and a lamp is lit on a display 11 for displaying a charging state when the charging is completed. Further, a voltage detecting means 13 for detecting a voltage between terminals of both batteries 7A, 7A connected in series is provided. The information of the voltage detecting means 13 is controlled by a control device 8 configured to be controlled by a microcomputer or the like.
Is input to As shown in FIG. 2, the control device 8 includes a timer 15 which is started by a charging start signal, that is, a supply current when the plug 10 is connected to a commercial power supply (step S1 in FIG. 3). The timer 15 measures the time from the start-up, and within a predetermined time T1 set in advance, both batteries 7 associated with the charging are measured.
It is determined whether the voltage value between the terminals A and 7A reaches a predetermined voltage value V corresponding to the fully charged state. If the inter-terminal voltage value does not reach the predetermined voltage value V even after the predetermined time T1, the battery is charged with the predetermined current value I1 until the terminal voltage value reaches the predetermined voltage value V (steps S2 and S in FIG. 3).
3) When the voltage reaches the predetermined voltage value V, charging is performed for a second predetermined time T2 at a second predetermined current value I2 lower than the predetermined current value I1 (steps S3 and S4 in FIG. 3) (see FIG. 4A).
Then, the control is performed by the normal charging means 16 provided in the charger 9. If the value of the voltage between the terminals of the batteries 7A, 7A reaches the predetermined voltage value V within the predetermined time T1, the second predetermined current value I2 is immediately set to a half of the second predetermined current value I2. 3 Charging with the current set to the predetermined current value I3 (Steps S3, S6, S
7, S8). When the battery is charged in this state, as shown in FIG. 4 (b), the voltage between the terminals of the batteries 7A, 7A temporarily drops below the predetermined voltage value V. When the voltage reaches the predetermined voltage value V, the charging is performed differently from the normal charging in which the charging is stopped. The auxiliary charging means 22 for performing the unusual charging is provided in the charger 9.

【0013】次に、小型電動車における最高速度調節手
段について簡単に説明する。図5に示すように、操縦ハ
ンドル1の中央部には、各種操作を行ったり表示するた
めの前記表示器11等を備えるパネル17が設けられて
いる。そして、このパネル17には、最高速度を設定す
るための最高速度調節用つまみ18を設けている。この
最高速度調節用つまみ18は、図6に示すように、手動
で左右に回動可能にパネル17に支持されているととも
に、図示しないポテンショメータの操作軸に一体に設け
ている。このポテンショメータからの信号は制御装置8
に入力されて、操縦ハンドル1に設けたアクセル設定用
のレバー19の最大操作位置に対応する最高車速を適宜
変更できるようになっている。さらに、図6に示すよう
に、最高速度調節用つまみ18と同軸芯周りで回動可能
にパネル17に摩擦保持される状態でストッパーリング
20を設けている。このストッパーリング20は比較的
大きな力で回さないと回転させることができないよう、
比較的強い摩擦力でパネル17の環状突出部21に外嵌
している。そして、ストッパーリング20上の突起20
Aによって位置規制されるよう、その突起20Aに接当
する接当部18Aを最高速度調節用つまみ18に設けて
いる。従って、最高速度を設定するための、例えば本小
型電動車は時速6キロメートルを実際の最高速度とする
ものであるが、アクセルレバー19を最大操作しても時
速5キロメートル程度しか出ないように最高速度調節用
つまみ18で設定することができ、例えば最高速度を時
速4キロメートルに設定して街路を走行している状態か
ら農道等のように歩行者に注意しなくても操縦できるよ
うなところを走行する場合には、上記のように最高速度
を時速4キロメートルに設定している最高速度調節用つ
まみ18をストッパーリング20の突起20A位置によ
って最高速度を予め時速5キロメートルに設定している
規制位置に単に最高速度調節用つまみ18を回し操作す
るだけで一々目盛り等を確認しなくても所望の最高速度
の設定ができるようになっている。従って、適宜最高速
度を変更調節したいときに、一々最高速度位置を目盛り
等を視認しなくても簡易迅速に設定できるものとなっ
て、作業性が良いものとなっている。
Next, the maximum speed adjusting means in the small electric vehicle will be briefly described. As shown in FIG. 5, a panel 17 including the display 11 and the like for performing various operations and displaying is provided at a central portion of the steering handle 1. The panel 17 is provided with a maximum speed adjusting knob 18 for setting the maximum speed. As shown in FIG. 6, the maximum speed adjusting knob 18 is manually supported on the panel 17 so as to be able to rotate left and right manually, and is provided integrally with an operation shaft of a potentiometer (not shown). The signal from this potentiometer is sent to the control unit 8
The maximum vehicle speed corresponding to the maximum operation position of the accelerator setting lever 19 provided on the steering handle 1 can be changed as appropriate. Further, as shown in FIG. 6, a stopper ring 20 is provided so as to be rotatable around the coaxial core with the maximum speed adjusting knob 18 and frictionally held by the panel 17. This stopper ring 20 cannot be rotated unless it is turned with a relatively large force.
It is fitted onto the annular projection 21 of the panel 17 with a relatively strong frictional force. Then, the protrusion 20 on the stopper ring 20
A contact portion 18A that contacts the protrusion 20A is provided on the maximum speed adjusting knob 18 so that the position is regulated by A. Therefore, for example, in this small electric vehicle, the maximum speed is set to 6 km / h for setting the maximum speed. However, even if the accelerator lever 19 is operated at the maximum, the maximum speed is only about 5 km / h. The speed control knob 18 can be used to set the maximum speed at 4 km / h, for example, from a state where the vehicle is running on a street, such as a farm road, where it can be operated without paying attention to pedestrians. When traveling, the maximum speed control knob 18 that sets the maximum speed to 4 kilometers per hour as described above is set to the regulation position where the maximum speed is set to 5 kilometers per hour in advance by the position of the projection 20A of the stopper ring 20. By simply turning and operating the maximum speed adjusting knob 18, a desired maximum speed can be set without checking the scale or the like. To have. Therefore, when it is desired to appropriately change and adjust the maximum speed, the maximum speed position can be set simply and quickly without visually recognizing a scale or the like, thereby improving workability.

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

【図1】小型電動車を示す全体側面図FIG. 1 is an overall side view showing a small electric vehicle.

【図2】充電手段等を示すブロック図FIG. 2 is a block diagram showing charging means and the like;

【図3】充電方法を示すフローチャートFIG. 3 is a flowchart showing a charging method.

【図4】通常の充電による充電電流とバッテリー端子間
電圧とのそれぞれの経時的様子を示すグラフ(イ)と、
満充電に近い状態での充電による充電電流とバッテリー
端子間電圧とのそれぞれの経時的様子を示すグラフ
(ロ)
FIG. 4 is a graph (a) showing the time course of each of a charging current and a voltage between battery terminals during normal charging;
Graph showing the time course of the charging current and the voltage across the battery terminals due to charging near full charge (b)

【図5】小型電動車の操縦ハンドルを示す平面図FIG. 5 is a plan view showing a steering handle of the small electric vehicle.

【図6】最高速度設定用のボリュームを示す正面図
(イ)と、横断平面図(ロ)
FIG. 6 is a front view (a) showing a volume for setting the maximum speed, and a cross-sectional plan view (b).

【符号の説明】 7A バッテリー 13 電圧検出手段 16 通常充電手段 22 補助充電手段[Description of Signs] 7A battery 13 voltage detection means 16 normal charging means 22 auxiliary charging means

───────────────────────────────────────────────────── フロントページの続き Fターム(参考) 5G003 AA01 BA01 CA02 CA15 DA04 FA06 GC05 5H030 AA03 AS08 AS18 BB03 BB04 FF42 FF43 FF52 5H111 BB06 CC01 CC16 DD01 GG14 HA05 5H115 PG04 PI16 PI29 PO14 PU01 QN12 TI05  ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5G003 AA01 BA01 CA02 CA15 DA04 FA06 GC05 5H030 AA03 AS08 AS18 BB03 BB04 FF42 FF43 FF52 5H111 BB06 CC01 CC16 DD01 GG14 HA05 5H115 PG04 PI16 PI29 PO14 PU01 QN12 TI05

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 バッテリーの端子電圧を検出する電圧検
出手段を設けるとともに、前記バッテリーに充電を開始
してから所定時間を経過した後に前記電圧検出手段での
検出電圧値が所定電圧値に達したときは、その所定電圧
値に達した後は予め設定された所定電流値の電流で充電
を第2所定時間継続して充電を完了する通常充電手段を
設けるとともに、前記所定時間以内に前記電圧検出手段
が前記所定電圧値に達したことを検出すると、充電用の
電流値を前記所定電圧値に達する前における充電電流よ
りも電流値の低い電流で充電を継続し、その電流値の低
い電流での充電時に検出電圧値が再度前記所定電圧値に
達すると充電を完了する補助充電手段を設けてある小型
電動車のバッテリー充電装置。
1. A voltage detecting means for detecting a terminal voltage of a battery is provided, and a voltage value detected by the voltage detecting means reaches a predetermined voltage value after a lapse of a predetermined time from the start of charging of the battery. In this case, after reaching the predetermined voltage value, a normal charging means for completing the charging by continuing the charging with the current of the predetermined current value set in advance for the second predetermined time is provided, and detecting the voltage within the predetermined time. When the means detects that the predetermined voltage value has been reached, charging is continued with a current value lower than the charging current before the charging current value reaches the predetermined voltage value, and the charging current value is reduced by the current having the lower current value. A battery charging device for a small electric vehicle, comprising auxiliary charging means for completing charging when the detected voltage value reaches the predetermined voltage value again during charging of the battery.
【請求項2】 請求項1に記載の小型電動車のバッテリ
ー充電装置において、前記所定時間以内に前記電圧検出
手段が前記所定電圧値に達したことを検出すると、充電
用の電流値を前記通常充電手段による充電時の前記所定
時間経過後の前記所定電流値よりも低く設定した電流で
充電を継続し、その所定電流値より低い電流での充電時
に検出電圧値が再度前記所定電圧値に達すると充電を完
了するように補助充電手段を構成してある小型電動車の
バッテリー充電装置。
2. The battery charging device for a small electric vehicle according to claim 1, wherein when the voltage detecting means detects that the predetermined voltage value is reached within the predetermined time, the charging current value is changed to the normal value. Charging is continued with a current set lower than the predetermined current value after the predetermined time has elapsed at the time of charging by the charging means, and the detection voltage value reaches the predetermined voltage value again when charging with a current lower than the predetermined current value. Then, a battery charging device for a small electric vehicle, in which auxiliary charging means is configured to complete charging.
JP10236917A 1998-08-24 1998-08-24 Battery charging device for small-size electric vehicle Pending JP2000069687A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10236917A JP2000069687A (en) 1998-08-24 1998-08-24 Battery charging device for small-size electric vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10236917A JP2000069687A (en) 1998-08-24 1998-08-24 Battery charging device for small-size electric vehicle

Publications (1)

Publication Number Publication Date
JP2000069687A true JP2000069687A (en) 2000-03-03

Family

ID=17007675

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10236917A Pending JP2000069687A (en) 1998-08-24 1998-08-24 Battery charging device for small-size electric vehicle

Country Status (1)

Country Link
JP (1) JP2000069687A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014004035A2 (en) * 2012-06-26 2014-01-03 Intel Corporation Charging a battery
CN104010871A (en) * 2011-12-19 2014-08-27 施耐德电器工业公司 Method for monitoring and optimising the operation of a charging terminal for an electric vehicle and charging terminal for implementing said method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104010871A (en) * 2011-12-19 2014-08-27 施耐德电器工业公司 Method for monitoring and optimising the operation of a charging terminal for an electric vehicle and charging terminal for implementing said method
CN104010871B (en) * 2011-12-19 2016-11-02 施耐德电器工业公司 Monitor and optimize the operational approach of electric vehicle charging terminal and realize the charging terminal of the method
WO2014004035A2 (en) * 2012-06-26 2014-01-03 Intel Corporation Charging a battery
WO2014004035A3 (en) * 2012-06-26 2014-03-13 Intel Corporation Charging a battery
US9231434B2 (en) 2012-06-26 2016-01-05 Intel Corporation Charging a battery using a multi-rate charge

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