JP2003199259A - Charge control method for charger - Google Patents
Charge control method for chargerInfo
- Publication number
- JP2003199259A JP2003199259A JP2002282773A JP2002282773A JP2003199259A JP 2003199259 A JP2003199259 A JP 2003199259A JP 2002282773 A JP2002282773 A JP 2002282773A JP 2002282773 A JP2002282773 A JP 2002282773A JP 2003199259 A JP2003199259 A JP 2003199259A
- Authority
- JP
- Japan
- Prior art keywords
- charging
- charging current
- battery
- battery 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.)
- 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
- Tests Of Electric Status Of Batteries (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はニッケル・カドミウ
ム電池（以下ニカド電池という）等の２次電池を充電す
る充電装置の充電制御方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a charging control method for a charging device for charging a secondary battery such as a nickel-cadmium battery (hereinafter referred to as a nicad battery).
【０００２】[0002]
【従来の技術】充電装置として種々のものがあり、特に
異なる複数の素電池を直列に接続した種々の電池組すな
わち電圧の異なる電池組を１台の充電装置で全て充電す
ることができる充電装置（以下汎用充電器という）が普
及している。特に電動工具のような用途では、ハイパワ
ーの要望が強く、これに応えるため素電池数を多くした
高電圧化が進んでいる。また汎用充電器も充電可能な電
池組を同じ充電電流で充電するために、汎用充電器の高
出力化、大型化が進んでいる。2. Description of the Related Art There are various types of charging devices, and in particular, various battery sets in which a plurality of different unit cells are connected in series, that is, battery sets having different voltages can all be charged by one charging device. (Hereinafter, it is called a general-purpose charger) has become widespread. Particularly in applications such as electric tools, there is a strong demand for high power, and in order to meet this demand, the number of unit cells has been increased and the voltage has been increased. Further, in order to charge a battery set that can be charged by a general-purpose charger with the same charging current, the general-purpose charger is becoming higher in output and larger in size.
【０００３】[0003]
【発明が解決しようとする課題】しかし、前記汎用充電
器は、最も素電池数の多い電池組すなわち最も電池電圧
が高い電池組を充電するのに必要な電力を供給せねばな
らず、その結果素電池数が少ない電池組を充電する場
合、汎用充電器の能力を最大限発揮していないことにな
る。例えば、２０本の素電池から構成されているニカド
電池を７Ａで充電する汎用充電器では、単純に最大出力
は１個の素電池の起電力を１.３２Ｖとして１.３２Ｖ×
２０本×７Ａ＝１８４.８Ｗの電力供給が可能であるか
ら、１０本の素電池から構成されているニカド電池を充
電する場合、１８４.８Ｗ÷（１.３２Ｖ×１０本）＝１
４Ａで充電することができるということである。実際に
は限られた大きさの汎用充電器内で構成される部品例え
ばダイオード、高周波トランス、ＦＥＴ等の各々の最大
定格電流値の関係から、単純に１０本の素電池から構成
されているニカド電池を１４Ａで充電することはできな
いが、２０本の素電池から構成されているニカド電池を
７Ａで充電することができる汎用充電器では、１０本の
素電池から構成されているニカド電池を１０Ａ程度の充
電電流値で充電することは可能である。However, the general-purpose charger must supply the electric power necessary for charging the battery group having the largest number of unit cells, that is, the battery group having the highest battery voltage, and as a result, When charging a battery group with a small number of unit cells, it means that the general-purpose charger is not maximizing its capabilities. For example, in a general-purpose charger that charges a NiCd battery composed of 20 unit cells with 7A, the maximum output is simply 1.32V with the electromotive force of one unit cell being 1.32V.
Since it is possible to supply electric power of 20 lines × 7 A = 184.8 W, when charging a NiCd battery consisting of 10 unit cells, 184.8 W ÷ (1.32 V × 10 lines) = 1
It means that it can be charged at 4A. In practice, a nickel-cadmium battery consisting of 10 unit cells is simply used because of the maximum rated current value of each component such as a diode, a high-frequency transformer, and an FET that is configured in a general-purpose charger of a limited size. Although a battery cannot be charged with 14A, a general-purpose charger that can charge a NiCd battery composed of 20 unit cells with 7A can replace a NiCd battery composed of 10 unit cells with 10A. It is possible to charge with a charging current value of a certain degree.
【０００４】また、素電池数が多くなれば電池組の体積
も大きくなり、その結果電池組内の個々の素電池の温度
上昇のバラツキも大きくなり、素電池数の多少に関係な
く同じ充電電流で充電した場合、素電池数が多くなるに
従いサイクル寿命特性は低減する傾向にある。Further, as the number of the unit cells increases, the volume of the battery set also increases, and as a result, the variation in the temperature rise of the individual unit cells in the battery set also increases, and the same charging current is obtained regardless of the number of the unit cells. When the battery is charged at 1, the cycle life characteristics tend to decrease as the number of unit cells increases.
【０００５】本発明の目的は、上記した従来技術の欠点
をなくし、汎用充電器の能力を最大限発揮し、更に素電
池数の多少に関係なくサイクル寿命特性を安定化させる
ことができ、また素電池数に関係なく同じ充電電流で充
電する汎用充電器よりも結果として小型化も可能な充電
装置を提供可能な充電制御方法を提供することである。The object of the present invention is to eliminate the above-mentioned drawbacks of the prior art, to maximize the performance of a general-purpose charger, and to stabilize the cycle life characteristics regardless of the number of cells. It is an object of the present invention to provide a charging control method capable of providing a charging device that can be downsized as a result, compared with a general-purpose charger that charges with the same charging current regardless of the number of unit cells.
【０００６】[0006]
【課題を解決するための手段】上記目的は、被充電電池
組の電池電圧を検出する電池電圧検出手段と、設定値に
従って充電電流を制御する充電電流制御手段と、充電電
流制御手段に付与する設定値を制御するマイクロコンピ
ュータ(以下マイコンという)とを備え、電池電圧検出手
段の検出信号を取り込んだマイコンは、検出信号をベー
スとして充電電流を設定する設定値を決定し、充電電流
制御手段を介して充電電流を制御することにより達成さ
れる。The above object is given to a battery voltage detection means for detecting a battery voltage of a battery group to be charged, a charging current control means for controlling a charging current according to a set value, and a charging current control means. A microcomputer that controls a set value (hereinafter referred to as a microcomputer) and captures the detection signal of the battery voltage detection means determines the set value for setting the charging current based on the detection signal, and sets the charging current control means. This is achieved by controlling the charging current via.
【０００７】[0007]
【発明の実施の形態】図１は本発明充電制御方法を採用
した充電装置の一実施形態を示すブロック回路図であ
る。図において、１は交流電源、２は複数の充電可能な
素電池を直列に接続した電池組、３は該電池組２に流れ
る充電電流を検出する電流検出手段、４は充電の開始及
び停止を制御する信号を伝達する充電制御信号伝達手
段、５は充電電流の信号をＰＷＭ制御ＩＣ２３に帰還す
る充電電流信号伝達手段である。充電制御伝達信号手段
４と充電電流信号伝達手段５は例えばホトカプラ等から
なる。１０は全波整流回路１１と平滑用コンデンサ１２
からなる整流平滑回路、２０は高周波トランス２１、Ｍ
ＯＳＦＥＴ２２、ＰＷＭ制御ＩＣ２３からなるスイッチ
ング回路である。ＰＷＭ制御ＩＣ２３はＭＯＳＦＥＴ２
２の駆動パルス幅を変えて整流平滑回路１０の出力電圧
を調整するスイッチング電源ＩＣである。３０はダイオ
ード３１、３２、チョークコイル３３、平滑用コンデン
サ３４からなる整流平滑回路、４０は抵抗４１、４２か
らなる電池電圧検出手段で、電池組２の端子電圧を分圧
する。５０は演算手段（ＣＰＵ）５１、ＲＯＭ５２、Ｒ
ＡＭ５３、タイマ５４、Ａ／Ｄコンバータ５５、出力ポ
ート５６、リセット入力ポート５７からなるマイコンで
ある。６０は演算増幅器６１、６２、抵抗６３〜６６か
らなる充電電流制御手段、７０は電源トランス７１、全
波整流回路７２、平滑コンデンサ７３、三端子レギュレ
ータ７４、リセットＩＣ７５からなる定電圧電源で、マ
イコン５０、充電電流制御手段６０等の電源となる。リ
セットＩＣ７５はマイコン５０を初期状態にするために
リセット入力ポート５７にリセット信号を出力する。８
０は充電電流を設定する充電電流設定手段であって、前
記出力ポート５６からの信号に対応して前記演算増幅器
６２の反転入力端に印加する電圧値を変えるものであ
る。1 is a block circuit diagram showing an embodiment of a charging device adopting the charging control method of the present invention. In the figure, 1 is an AC power source, 2 is a battery group in which a plurality of rechargeable unit cells are connected in series, 3 is current detection means for detecting a charging current flowing in the battery group 2, and 4 is a start and stop of charging. The charging control signal transmitting means 5 for transmitting a control signal is a charging current signal transmitting means for feeding back a charging current signal to the PWM control IC 23. The charging control transmission signal means 4 and the charging current signal transmission means 5 are, for example, photocouplers. 10 is a full-wave rectifier circuit 11 and a smoothing capacitor 12
Rectifying and smoothing circuit consisting of, 20 is a high frequency transformer 21, M
It is a switching circuit including an OSFET 22 and a PWM control IC 23. The PWM control IC 23 is MOSFET2
2 is a switching power supply IC that adjusts the output voltage of the rectifying and smoothing circuit 10 by changing the drive pulse width of No. 2. Reference numeral 30 is a rectifying / smoothing circuit including diodes 31, 32, choke coil 33, and smoothing capacitor 34, and 40 is a battery voltage detecting means including resistors 41 and 42, which divides the terminal voltage of the battery set 2. 50 is a calculation means (CPU) 51, ROM 52, R
The microcomputer includes an AM 53, a timer 54, an A / D converter 55, an output port 56, and a reset input port 57. Reference numeral 60 is a charging current control means including operational amplifiers 61 and 62 and resistors 63 to 66, and 70 is a constant voltage power supply including a power transformer 71, a full-wave rectifier circuit 72, a smoothing capacitor 73, a three-terminal regulator 74, and a reset IC 75. 50, charging current control means 60, etc. The reset IC 75 outputs a reset signal to the reset input port 57 in order to initialize the microcomputer 50. 8
Reference numeral 0 is a charging current setting means for setting a charging current, which changes the voltage value applied to the inverting input terminal of the operational amplifier 62 in accordance with the signal from the output port 56.
【０００８】次に、図１のブロック回路図、図２のフロ
ーチャートを参照して動作の説明をする。電源を投入す
ると、マイコン５０は電池組２の接続待機状態となる
（ステップ１０１）。電池組２を接続すると、マイコン
５０は電池接続を電池電圧検出手段４０の信号により判
別し、初期充電時間ｔ0及び充電電流Ｉ0に対応する充電
電流設定基準値Ｖi0を設定し（ステップ１０２）、出力
ポート５６より信号伝達手段４を介してＰＷＭ制御ＩＣ
２３に充電開始信号を伝達すると共に充電電流設定手段
８０を介して充電電流設定基準値Ｖi0を演算増幅器６２
に印加し、充電電流Ｉ0で充電を開始する（ステップ１
０３）。充電開始と同時に電池組２に流れる充電電流を
電流検出手段３により検出し、この充電電流に対応する
電圧と充電電流設定基準値Ｖi0との差を充電電流制御手
段６０より信号伝達手段５を介して、ＰＷＭ制御ＩＣ２
３に帰還をかける。すなわち、充電電流が大きい場合は
パルス幅を狭め、逆の場合はパルス幅を広げたパルスを
高周波トランス２１に与え整流平滑回路３０で直流に平
滑し、充電電流を一定値Ｉ0に保つ。すなわち電流検出
手段３、充電電流手段６０、信号伝達手段５、スイッチ
ング回路２０、整流平滑回路３０を介して充電電流を所
定電流値Ｉ0となるように制御する。Next, the operation will be described with reference to the block circuit diagram of FIG. 1 and the flowchart of FIG. When the power is turned on, the microcomputer 50 enters a standby state for connecting the battery group 2 (step 101). When the battery set 2 is connected, the microcomputer 50 determines the battery connection by the signal of the battery voltage detection means 40, and sets the charging current setting reference value Vi 0 corresponding to the initial charging time t 0 and the charging current I 0 (step 102). ), PWM control IC from the output port 56 through the signal transmission means 4
23, the charge start signal is transmitted to 23, and the charge current setting reference value Vi 0 is supplied to the operational amplifier 62 via the charge current setting means 80.
To start charging with a charging current I 0 (step 1
03). At the same time as charging is started, the charging current flowing through the battery set 2 is detected by the current detection means 3, and the difference between the voltage corresponding to this charging current and the charging current setting reference value Vi 0 is sent from the charging current control means 60 to the signal transmission means 5. Via the PWM control IC2
Return to 3. That is, when the charging current is large, the pulse width is narrowed, and in the opposite case, the pulse whose pulse width is widened is given to the high frequency transformer 21 to be smoothed into direct current by the rectifying and smoothing circuit 30, and the charging current is kept at a constant value I0. That is, the charging current is controlled so as to reach the predetermined current value I 0 via the current detecting unit 3, the charging current unit 60, the signal transmitting unit 5, the switching circuit 20, and the rectifying / smoothing circuit 30.
【０００９】次いで、電池組２の素電池数判別を行う。
充電開始からｔ0時間経過をチェックし（ステップ１０
４）、ｔ0時間経過後、電池電圧値Ｖｔ0を入力し（ステ
ップ１０５）、予め設定されている各電池組の基準電圧
値ｎＶa（ｎは素電池数であり、Ｖaは素電池数判別の基
準電圧値であり、ニカド電池では充電電流の大きさによ
って異なるが、１Ｃ充電で１.２Ｖ程度である。）と比
較し、電池組２の素電池数（この実施形態での電池組２
は、素電池数が２本づつ異なるものとする）ｎを判別し
（ステップ１０６）、充電されている電池組２の素電池
数ｎと充電電流の供給を判別する素電池数ｍ/２（ｍは
この充電装置で充電可能な電池組の最大素電池数であ
る）と比較し（ステップ１０７）、素電池数が多い場合
にはステップ１０８において充電電流Ｉ1に対応する充
電電流設定基準値Ｖi1を設定して、充電電流をＩ1（Ｉ1
≧Ｉ0）として充電を継続し（ステップ１０９）、次い
でステップ１１０において満充電の検出を行う。満充電
検出は、周知の如く種々あるが、例えば充電末期のピー
ク電圧値から所定値△Ｖだけ降下したことを検出する−
ΔＶ検出のように電池組２の−ΔＶ検出を行う。満充電
を検出した場合、マイコン５０は充電停止信号をＰＷＭ
制御ＩＣ２３に伝達して充電を停止する（ステップ１１
１）。次いで電池組２が取り出されるのを判別し（ステ
ップ１１２）、電池組２の取り出しを判別したらステッ
プ１０１に戻り、次の電池組２の充電のための待機をす
る。なお前記ステップ１１０において満充電を検出しな
い場合には再度ステップ１１０に戻る。Next, the number of unit cells of the battery group 2 is determined.
Check the elapse of t 0 time from the start of charging (step 10
4) After the lapse of time t 0 , the battery voltage value Vt 0 is input (step 105) and the preset reference voltage value nVa of each battery group (n is the number of unit cells, Va is the number of unit cells) Of the unit cell number of the battery set 2 (battery set 2 in this embodiment)
Determines that the number of unit cells is two different) n (step 106), and determines the number n of unit cells of the battery set 2 being charged and the number of unit cells m / 2 (the supply of charging current). m is the maximum number of unit cells of the battery set that can be charged by this charging device) (step 107), and when the number of unit cells is large, the charging current setting reference value corresponding to the charging current I 1 in step 108 Set Vi 1 to set the charging current to I 1 (I 1
≧ I 0 ) and the charging is continued (step 109). Then, in step 110, full charge is detected. There are various types of full charge detection, as is well known, but for example, it is detected that the peak voltage value at the end of charging has dropped by a predetermined value ΔV.
Like the ΔV detection, −ΔV detection of the battery set 2 is performed. When full charge is detected, the microcomputer 50 PWMs the charge stop signal
Transmission to the control IC 23 to stop charging (step 11)
1). Next, it is determined that the battery set 2 is taken out (step 112), and if it is determined that the battery set 2 is taken out, the process returns to step 101 and stands by for charging the next battery set 2. If the full charge is not detected in step 110, the process returns to step 110 again.
【００１０】前記ステップ１０７において素電池数が少
ないと判別した場合、充電電流Ｉ2に対応する充電電流
設定基準値Ｖi2を設定し（ステップ１１３）、充電電流
をＩ 2（Ｉ2≧Ｉ1）に増加して充電を継続し（ステップ
１１４）、次いで前記ステップ１１０と同様の満充電検
出を行う（ステップ１１５）。満充電を検出した場合、
マイコン５０は充電停止信号をＰＷＭ制御ＩＣ２３に伝
達して充電を停止する（ステップ１１１）。次いで電池
組２の取り出されるのを判別し（ステップ１１２）。電
池組２の取り出しを判別したらステップ１０１に戻り、
次の電池組２の充電のための待機をする。In step 107, the number of unit cells is small.
If it is determined that there is no charge current I2Charge current corresponding to
Setting reference value Vi2(Step 113), charging current
I 2(I2≧ I1) To continue charging (step
114), and then the same full charge detection as in step 110 above.
(Step 115). When full charge is detected,
The microcomputer 50 transmits the charge stop signal to the PWM control IC 23.
When reaching, the charging is stopped (step 111). Then the battery
It is determined that the set 2 is taken out (step 112). Electric
When it is determined that the Ikegumi 2 is taken out, the process returns to step 101,
It stands by for charging the next battery group 2.
【００１１】上記実施形態に基づく充電特性を図３（素
電池数が異なる電池組の充電特性）に示す。ここで、ｔ
0は充電開始から電池電圧を検出し素電池数判別をする
のに必要な時間である。Charging characteristics based on the above embodiment are shown in FIG. 3 (charging characteristics of battery groups having different numbers of unit cells). Where t
0 is the time required to detect the battery voltage and determine the number of unit cells from the start of charging.
【００１２】上記実施形態においては、素電池数が充電
可能な最大素電池数の半分より多いか否かを比較検出
し、この検出結果によって充電電流を設定するとした
が、素電池数を更に細かく比較検出して素電池数に対応
した充電電流とすれば、少ない素電池数の電池組２を効
率よく充電できるようになると共に充電時間を短縮でき
るようになる。In the above-described embodiment, whether or not the number of unit cells is more than half of the maximum number of unit cells that can be charged is detected by comparison, and the charging current is set based on the detection result. By comparing and detecting the charging current corresponding to the number of unit cells, the battery group 2 having a small number of unit cells can be efficiently charged and the charging time can be shortened.
【００１３】また電池組２の素電池数を判別して充電電
流を設定するとしたが、電池組２の電池電圧を検出した
検出信号と基準値とを比較して前記設定値を決定するよ
うにしてもよい。Although it has been stated that the charging current is set by discriminating the number of unit cells of the battery set 2, the set value is determined by comparing the detection signal detecting the battery voltage of the battery set 2 with the reference value. May be.
【００１４】[0014]
【発明の効果】以上のように本発明によれば、汎用充電
器の能力を最大限発揮することができ、電池組の個々の
素電池の温度上昇のバラツキが抑制され、電池組のサイ
クル寿命の低下を防止できると共に汎用充電器の小型化
が達成される。As described above, according to the present invention, the ability of a general-purpose charger can be maximized, variations in temperature rise of individual cells of a battery group can be suppressed, and the cycle life of the battery group can be suppressed. Of the general-purpose charger can be achieved and the size of the general-purpose charger can be reduced.
【図１】本発明充電制御方法を採用した充電装置の一実
施形態を示すブロック回路図。FIG. 1 is a block circuit diagram showing an embodiment of a charging device adopting a charging control method of the present invention.
【図２】本発明充電制御方法の一実施形態を示すフロー
チャート。FIG. 2 is a flowchart showing an embodiment of the charging control method of the present invention.
【図３】本発明充電制御方法によって素電池数の異なる
２種類の電池組を充電した時の充電特性を示すグラフ。FIG. 3 is a graph showing charge characteristics when two types of battery groups having different numbers of unit cells are charged by the charge control method of the present invention.
２は電池組、２０はスイッチング回路、４０は電池電圧
検出手段、５０はマイコン、６０は充電電流制御手段、
８０は充電電流設定手段である。2 is a battery group, 20 is a switching circuit, 40 is a battery voltage detection means, 50 is a microcomputer, 60 is a charging current control means,
Reference numeral 80 is a charging current setting means.
フロントページの続き Ｆターム(参考） 2G016 CA00 CB12 CB31 CB32 CC03 CC04 CC27 CC28 5G003 AA01 BA01 CA02 CA17 CC07 GC05 5H030 AA01 BB01 FF42 FF43 FF44 FF52 Continued front page F term (reference) 2G016 CA00 CB12 CB31 CB32 CC03 CC04 CC27 CC28 5G003 AA01 BA01 CA02 CA17 CC07 GC05 5H030 AA01 BB01 FF42 FF43 FF44 FF52
Claims (2)
端子に接続される電池組の電池電圧を検出する電池電圧
検出手段と、一対の充電出力端子に供給する充電電流を
設定値に従って制御する充電電流制御手段と、充電電流
制御手段に付与する設定値を制御するためのマイクロコ
ンピュータとを有する充電装置の充電制御方法であっ
て、 前記一対の充電出力端子に電池組が接続されてから所定
時間を経過したか否かを判断するステップと、前記所定
時間が経過した時は電池電圧検出手段の検出信号をマイ
クロコンピュータに取り込むステップと、マイクロコン
ピュータに取り込んだ電池電圧の検出信号と、予めコン
ピュータに設定されている設定値とを比較し、電池組の
電池電圧が所定値以上の時の充電電流を、電池電圧が所
定値より小さい時の充電電流より小さい値に設定する設
定値を充電電流制御手段に付与するステップとを備えた
ことを特徴とする充電装置の充電制御方法。1. A pair of charging output terminals, a battery voltage detecting means for detecting a battery voltage of a battery set connected to the pair of charging output terminals, and a charging current supplied to the pair of charging output terminals is controlled according to a set value. A charging control method of a charging device having a charging current control means for controlling and a microcomputer for controlling a set value applied to the charging current control means, wherein a battery set is connected to the pair of charging output terminals. A step of determining whether or not a predetermined time has elapsed, a step of loading a detection signal of the battery voltage detection means into the microcomputer when the predetermined time has passed, a detection signal of the battery voltage loaded into the microcomputer, and Compared with the set value set in the computer, the charging current when the battery voltage of the battery set is more than the specified value, the battery voltage is less than the specified value Charging control method for a charging device for the steps of the grant to the charging current control means setting values set in the charging current value smaller than, comprising the.
端子に接続される電池組の電池電圧を検出する電池電圧
検出手段と、一対の充電出力端子に供給する充電電流を
設定値に従って制御する充電電流制御手段と、充電電流
制御手段に付与する設定値を制御するためのマイクロコ
ンピュータとを有する充電装置の充電制御方法であっ
て、 前記一対の充電出力端子に電池組が接続されてから所定
時間を経過したか否かを判断するステップと、前記所定
時間が経過した時は電池電圧検出手段の検出信号をマイ
クロコンピュータに取り込むステップと、マイクロコン
ピュータは、取り込んだ電池電圧の検出信号と、予め設
定されている電池組の基準電圧値と比較して、電池組の
素電池数を判別するステップと、素電池数が所定値より
多い場合は第１の充電電流の設定値を充電電流制御手段
に付与し、素電池数が所定値より少ない場合は、前記第
１の電流より大きい第２の充電電流に設定する設定値を
充電電流制御手段に付与するステップとを備えたことを
特徴とする充電装置の充電制御方法。2. A pair of charging output terminals, a battery voltage detecting means for detecting a battery voltage of a battery set connected to the pair of charging output terminals, and a charging current supplied to the pair of charging output terminals is controlled according to a set value. A charging control method of a charging device having a charging current control means for controlling and a microcomputer for controlling a set value applied to the charging current control means, wherein a battery set is connected to the pair of charging output terminals. A step of determining whether or not a predetermined time has elapsed, a step of loading a detection signal of the battery voltage detection means into a microcomputer when the predetermined time has elapsed, and a microcomputer, a detection signal of the loaded battery voltage, A step of determining the number of unit cells of the battery group by comparing with a preset reference voltage value of the battery group; and a first step if the number of unit cells is larger than a predetermined value. The setting value of the charging current is given to the charging current control means, and when the number of unit cells is less than a predetermined value, the setting value of setting the second charging current larger than the first current is given to the charging current control means. A charging control method for a charging device, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002282773A JP3930792B2 (en) | 2002-09-27 | 2002-09-27 | Charge control method for general-purpose charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002282773A JP3930792B2 (en) | 2002-09-27 | 2002-09-27 | Charge control method for general-purpose charger |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP01637094A Division JP3384079B2 (en) | 1994-02-10 | 1994-02-10 | Battery pack charging device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003199259A true JP2003199259A (en) | 2003-07-11 |
| JP3930792B2 JP3930792B2 (en) | 2007-06-13 |
Family
ID=27606656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002282773A Expired - Lifetime JP3930792B2 (en) | 2002-09-27 | 2002-09-27 | Charge control method for general-purpose charger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3930792B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006254607A (en) * | 2005-03-11 | 2006-09-21 | Hitachi Koki Co Ltd | Battery charging device |
| US7365515B2 (en) | 2002-11-29 | 2008-04-29 | Hitachi Koki Co., Ltd. | Universal battery charger |
| CN100413141C (en) * | 2004-09-08 | 2008-08-20 | 艾默生网络能源有限公司 | Galvanic battery with detection unit |
| US20140320143A1 (en) * | 2011-07-18 | 2014-10-30 | Samsun Sdi Co., Ltd. | Battery management system and method for determining the charge state battery cells, battery and motor vehicle comprising a battery management system |
| CN107367694A (en) * | 2017-07-31 | 2017-11-21 | 重庆金山医疗器械有限公司 | A kind of appraisal procedure and system of lithium battery service life |
-
2002
- 2002-09-27 JP JP2002282773A patent/JP3930792B2/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7365515B2 (en) | 2002-11-29 | 2008-04-29 | Hitachi Koki Co., Ltd. | Universal battery charger |
| CN100413141C (en) * | 2004-09-08 | 2008-08-20 | 艾默生网络能源有限公司 | Galvanic battery with detection unit |
| JP2006254607A (en) * | 2005-03-11 | 2006-09-21 | Hitachi Koki Co Ltd | Battery charging device |
| US7579807B2 (en) | 2005-03-11 | 2009-08-25 | Hitachi Koki Co., Ltd. | Battery charger |
| JP4507191B2 (en) * | 2005-03-11 | 2010-07-21 | 日立工機株式会社 | Battery charger |
| US20140320143A1 (en) * | 2011-07-18 | 2014-10-30 | Samsun Sdi Co., Ltd. | Battery management system and method for determining the charge state battery cells, battery and motor vehicle comprising a battery management system |
| US9529053B2 (en) * | 2011-07-18 | 2016-12-27 | Robert Bosch Gmbh | Battery management system and method for determining the charge state battery cells, battery and motor vehicle comprising a battery management system |
| CN107367694A (en) * | 2017-07-31 | 2017-11-21 | 重庆金山医疗器械有限公司 | A kind of appraisal procedure and system of lithium battery service life |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3930792B2 (en) | 2007-06-13 |
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