JP2762442B2 - Charge control device for vehicle generator - Google Patents
Charge control device for vehicle generatorInfo
- Publication number
- JP2762442B2 JP2762442B2 JP62286178A JP28617887A JP2762442B2 JP 2762442 B2 JP2762442 B2 JP 2762442B2 JP 62286178 A JP62286178 A JP 62286178A JP 28617887 A JP28617887 A JP 28617887A JP 2762442 B2 JP2762442 B2 JP 2762442B2
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- battery
- state
- charge
- output impedance
- 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.)
- Expired - Lifetime
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- Control Of Charge By Means Of Generators (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、バッテリを適正な電圧で充電する車両用発
電機の充電制御装置に関する。
〔従来の技術〕
従来において、特開昭53−127646号公報および特開昭
60−225078号公報に示す如く、バッテリの充電状態を検
出するものが示されている。
また、バッテリの充電状態を検出し、バッテリが放電
状態の時に、バッテリの調整電圧を急に上昇させて、バ
ッテリの放電を防止することも考えられている。
〔発明が解決しようとする問題点〕
しかしながら、上述した従来のものでは、バッテリの
調整電圧を急に上昇させて、バッテリの充電を行おうと
すると、逆にバッテリが過充電となってしまい、そのた
め、バッテリの充電状態を常に監視して、バッテリの充
電状態を維持しておく必要がある。
〔問題点を解決するための手段〕
そこで、本発明においては、
車両用発電機と、該車両用発電機で充電されるバッテ
リの電圧を所定の調整電圧とするよう前記車両用発電機
を制御する電圧調整手段と、
前記バッテリの電圧を含む信号に基づいて、前記バッ
テリの充電状態がその容量あるいは劣化状態に対応した
適正充電状態を上回るか、下回るかを判定するバッテリ
状態の判定手段と、
前記電圧調整手段における調整電圧を、第１の所定電
圧と第２の所定電圧との間を複数に分けて設定される電
圧に前記判定手段の判定に応じて段階的に上昇あるいは
下降させて設定する手段であって、適正充電状態を上回
ると判定されるとき、調整電圧を段階的に上昇させ、適
正充電状態を下回ると判定されるとき、調整電圧を段階
的に下降させる設定手段と
を備えることを特徴とする車両用発電機の充電制御装置
という技術的手段を採用する。
なお、本発明の上記構成は例えば後述する実施例のよ
うに実現することができ、電圧調整手段は電圧制御手段
11で実現でき、判定手段は出力インピーダンス検出手段
７並びに調整電圧演算手段９の一部で実現でき、設定手
段は調整電圧演算手段９の一部並びに調整電圧記憶手段
10で実現できる。なお、判定手段は第２図に図示される
出力インピーダンスZOの演算処理および２つの判定分岐
処理「ZO＞ZOH」「ZO＜ZOL」によって主として実現され
ており、設定手段は「調整電圧down」「調整電圧up」の
処理によって主として実現されている。
〔作用〕
以上に述べた本発明の構成によると、バッテリの充電
状態がその容量あるいは劣化状態に対応した適正充電状
態を上回るか、下回るかが判定され、この判定に応答し
て調整電圧が第１の所定電圧と第２の所定電圧との間で
段階的に上昇あるいは下降される。しかもその上昇ある
いは下降は、第１の所定電圧と第２の所定電圧との間を
複数に分けて行われるので、バッテリの容量低下あるい
は劣化状態の進行に対応して調整電圧が設定され、電圧
調整手段によってバッテリの電圧が上記調整電圧に調整
される。よって、バッテリはその容量あるいは劣化状態
に応じた充電状態に維持される。さらに本発明の構成で
はバッテリの容量低下、劣化の進行に追従して調整電圧
を上昇させるだけでなく、バッテリ状態が適正充電状態
を上回ると判定されたときには再び調整電圧を下降させ
るよう構成しているので、判定手段におけるバッテリ状
態の判定の不確かさがあっても過大な調整電圧が長期間
に渡って設定されることが防止される。
〔発明の効果〕
以上に述べたように本発明によると、バッテリの充電
状態がその容量あるいは劣化状態に対応して適正充電状
態を上回るか、下回るかの判定に応じてバッテリの調整
電圧が段階的に上昇あるいは下降されるので、バッテリ
の容量低下あるいは劣化の進行に追従して適正な充電量
を得ることのできる調整電圧を設定することができると
共に、調整電圧の段階的な上昇下降の範囲を第１の所定
値と第２の所定値との間とし、しかも調整電圧の下降を
可能としたので過充電の防止を図ることができるという
優れた効果がある。
〔実施例〕
以下本発明を図に示す一実施例について説明する。
第１図において、１はスタータ、２はスタータスイッ
チ、３は電流検出器、４は車両用発電機、５はバッテ
リ、６はバッテリの開放電圧の電圧変化量を演算する変
化量演算手段、７はバッテリ５の出力インピーダンス検
出手段、８はバッテリ状態を表示する表示器、９は調整
電圧演算手段、10は調整電圧記憶手段、11は電圧制御手
段である。
次に、第２図において、本発明車両用発電機の充電制
御装置の制御の流れを示してあり、以下この流れに沿っ
て説明する。
まず、バッテリは長期に使用するにつれて、バッテリ
の受け入れが悪くなり、単にバッテリを一定電圧に制御
しただけでは、バッテリは放電状態となってしまう。
そこで、本発明では、第１に出力インピーダンス検出
手段７により、バッテリ５の出力インピーダンスZOを検
出する。この出力インピーダンス検出手段７は、変化量
検出手段６により、許可信号が出され、かつスタータス
イッチ２が閉じられ、スタータ１が始動された場合に、
電流検出器３で測定されたスタータ始動時の電流IBとバ
ッテリ５の電圧VBを7a,7bにより取り入れ、特開昭53−1
27646号公報に示す如く、出力インピーダンス演算回路7
cにより、出力インピーダンスZOとして（Ｅ−VB）/IBを
求める。この時、Ｅはバッテリの開放電圧である。
この出力インピーダンスZOを所定値ZOH（スタータ始
動に必要な出力インピーダンスなどから決定される）と
比較し、ZO＞ZOH、つまり所定値ZOHよりバッテリ出力イ
ンピーダンスZOが高い様ならば、そのバッテリ５は、容
量低下あるいは劣化が進行したと判断される。
そして、出力インピーダンス検出手段７により、バッ
テリ出力インピーダンスが所定値ZOHより高い場合は、
調整電圧演算手段９に信号を送り、調整電圧を現状の調
整電圧Vreg（ｎ−１）｛通常、初期状態においては、1
4.5V（第１の所定電圧）｝より少し上昇させ、新たな調
整電圧Vreg（ｎ）をVreg（ｎ）＝Vreg（ｎ−１）＋ΔV1
と決定する。ここで、ΔV1は0.05〔Ｖ〕程度に設定す
る。その後、電圧制御手段11により、発電機４の調整電
圧をVreg（ｎ）（14.55V）とし、バッテリ５の電圧を1
4.55〔Ｖ〕となるように充電する。また、この14.55
〔Ｖ〕は、調整電圧記憶手段10内に記憶させておく。従
って、バッテリの充電性能が向上し、スタータ始動性等
が向上される。
その後、同様に、出力インピーダンスZOを検出して、
この出力インピーダンスZOが、ZOL＜ZO＜ZOHであれば、
（ZOLはバッテリ特性により、バッテリが過充電になら
ないように決定される）、バッテリ５には適正な充電が
行われているということで、発電機４の調整電圧は、Vr
eg（ｎ）（14.55V）のままで、バッテリ５の充電を行
う。
さらに、その後、バッテリ５が劣化して、出力インピ
ーダンス検出手段７により、また出力インピーダンスZO
が、ZO＞ZOHであれば、上述の如く、発電機４の調整電
圧を14.55Vから0.05V上昇させて、14.6Vとする。
以上の如く、バッテリの放電状態の進み具合に応じ
て、発電機４の調整電圧を0.05Vずつ段階的に上昇させ
ていく。
以上の如く、バッテリの放電状態に応じ、発電機の調
整電圧を段階的に徐々に上昇させていくことで、必要以
上の充電がバッテリに行われないため、燃費が向上する
とともに、過充電によるバッテリの液べりが防止でき
る。
ところが、発電機の調整電圧を徐々に上昇させて、調
整電圧が第２の所定値VC（15V）に達しても、出力イン
ピーダンスＺが必要値ZOH以下にならない時は、バッテ
リ５が寿命であるということで、バッテリ５の交換時期
を表示する警報を行う。
また、調整電圧の上限を第２の所定電圧VCとし、調整
電圧が連続してあらかじめ決められた回数連続して、VC
であった場合に警報を行うことも可能である。
一方、出力インピーダンス検出手段７により、所定値
ZOLよりバッテリ出力インピーダンスZ0が低い様なら
ば、そのバッテリの充電状態は、必要以上に充電されて
いると判断される。このように、バッテリ出力インピー
ダンスZ0が所定値ZOLより低い場合は、調整電圧を現状
の調整電圧Vreg（ｎ−１）より同様に0.05V程度（Δ
V2）下降させ、新たな調整電圧Vreg（ｎ）をVreg（ｎ）
＝Vreg（ｎ−１）−ΔV2と決定することも可能である。
上述の如く、本発明では、バッテリの出力インピーダ
ンスを計測して、バッテリの放電状態を検出しているた
め、バッテリの出力インピーダンスを正確に計測する必
要がある。特にバッテリは、分極により、出力インピー
ダンスが変化するため、以下に述べる一方法で、出力イ
ンピーダンスを正確に測ることについて簡単に説明す
る。
まず、出力インピーダンスＺとバッテリの開放電圧Ｅ
との変化が一致している点に着目し、バッテリの開放電
圧Ｅの変化量を知ることで、出力インピーダンスＺの変
化、つまりバッテリの分極の有無を判断することができ
る。
まず、変化量検出手段６内では、車両の停止を検出す
る。車両の停止状態を検出した後、電圧測定手段6bによ
り、バッテリ５の開放電圧Ｅを検出し、この開放電圧Ｅ
を第１の開放電圧E1とする。そして、一定の間隔ΔＴ
（例えばタイマ6b等により１時間計測）を計測した後、
バッテリ５の第２の開放電圧E2を測定する。
その時、第１の開放電圧E1と第２の開放電圧E2との差
を比較器6dにて比較し、この差（E2−E1）の絶対値|E2
−E1|が所定値Erefよりも大きいか否かを比較する。
この絶対値|E2−E1|が、所定値Erefよりも大きけれ
ば、出力インピーダンスＺを測定しても、バッテリ５に
分極が残っているため、バッテリ５の状態を正確に検出
できないと判断する。その後、車両の停止状態において
は、絶対値|En+1−En|が所定値Erefよりも小さくなるま
で、一定の間隔ΔＴでバッテリ５の開放電圧Ｅを測定す
る。
一方、絶対値|En+1−En|が所定値Erefよりも小さけれ
ば、バッテリ５の分極の影響はほとんどなくなり、出力
インピーダンスＺを測定することで、正確にバッテリの
状態を検出できると判断する。そして、一定の間隔ΔＴ
でのバッテリ５の開放電圧Ｅの測定を停止する。
また、出力インピーダンス測定手段７に、バッテリ５
の分極の影響がないということで、出力インピーダンス
Ｚの測定を許可することで、常に正確な出力インピーダ
ンスＺを検出できる。
また、バッテリの開放電圧の変化量を測る代わりに、
バッテリの分極の影響がほとんどなくなるバッテリにお
ける最長時間を選択し、車両停止後、バッテリがこの最
長時間を経過後に、バッテリの出力インピーダンスを計
測するようにしてもよい。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicular generator charging control device that charges a battery with an appropriate voltage. [Prior Art] Conventionally, JP-A-53-127646 and JP-A-
As disclosed in Japanese Patent Application Laid-Open No. 60-225078, an apparatus for detecting a charged state of a battery is disclosed. It has also been considered that the state of charge of the battery is detected, and when the battery is in the discharged state, the regulated voltage of the battery is rapidly increased to prevent the battery from being discharged. [Problems to be Solved by the Invention] However, in the above-described conventional device, if the battery is charged by suddenly increasing the adjustment voltage of the battery and the battery is charged, the battery is overcharged. It is necessary to constantly monitor the state of charge of the battery and maintain the state of charge of the battery. [Means for Solving the Problems] Accordingly, in the present invention, the vehicle generator is controlled so that the voltage of the vehicle generator and the voltage of the battery charged by the vehicle generator are set to a predetermined regulated voltage. Voltage adjusting means, and a battery state determining means for determining whether the state of charge of the battery is above or below a proper state of charge corresponding to its capacity or deterioration state based on a signal including the voltage of the battery, The adjustment voltage in the voltage adjusting means is set by stepwise increasing or decreasing in accordance with the judgment of the judging means to a voltage set by dividing the voltage between a first predetermined voltage and a second predetermined voltage into a plurality of parts. Setting means for increasing the adjustment voltage stepwise when it is determined that the state of charge is higher than the appropriate charge state, and stepwise decreasing the adjustment voltage when it is determined that the state of charge is lower than the appropriate charge state. And a technical means called a charge control device for a vehicular generator. The above configuration of the present invention can be realized, for example, as in an embodiment described later, and the voltage adjusting unit is
11, the determining means can be realized by the output impedance detecting means 7 and a part of the adjustment voltage calculating means 9, and the setting means can be realized by a part of the adjusting voltage calculating means 9 and the adjusting voltage storing means.
Can be achieved with 10. The determination means is mainly realized by the calculation processing of the output impedance Z O and the two determination branch processing “Z O > Z OH ” and “Z O <Z OL ” shown in FIG. This is mainly realized by processing of the adjustment voltage down and the adjustment voltage up. [Operation] According to the configuration of the present invention described above, it is determined whether the state of charge of the battery is higher or lower than an appropriate state of charge corresponding to its capacity or deterioration state. The voltage is increased or decreased stepwise between the first predetermined voltage and the second predetermined voltage. In addition, the increase or decrease is performed by dividing the first predetermined voltage and the second predetermined voltage into a plurality of parts, so that the adjustment voltage is set in accordance with the decrease in the capacity of the battery or the progress of the deterioration state. The adjusting means adjusts the voltage of the battery to the adjusted voltage. Therefore, the battery is maintained in a charged state according to its capacity or deterioration state. Further, in the configuration of the present invention, not only the adjustment voltage is increased in accordance with the progress of the battery capacity reduction and deterioration, but also the adjustment voltage is decreased again when it is determined that the battery state exceeds the proper charge state. Therefore, even if there is uncertainty in the determination of the battery state by the determination means, an excessively large adjustment voltage is prevented from being set for a long period of time. [Effects of the Invention] As described above, according to the present invention, the adjustment voltage of the battery is stepped according to the determination whether the state of charge of the battery is higher or lower than the appropriate state of charge in accordance with the capacity or the state of deterioration. As the battery voltage rises or falls, it is possible to set an adjustment voltage capable of obtaining an appropriate charge amount following the progress of the battery capacity reduction or deterioration, and a range of a stepwise rise and fall of the adjustment voltage. Is set between the first predetermined value and the second predetermined value, and since the adjustment voltage can be lowered, there is an excellent effect that overcharging can be prevented. [Embodiment] An embodiment of the present invention shown in the drawings will be described below. In FIG. 1, 1 is a starter, 2 is a starter switch, 3 is a current detector, 4 is a generator for a vehicle, 5 is a battery, 6 is a change amount calculating means for calculating a change amount of the open voltage of the battery, 7 Is an output impedance detecting means of the battery 5, 8 is a display for displaying the state of the battery, 9 is an adjusting voltage calculating means, 10 is an adjusting voltage storing means, and 11 is a voltage controlling means. Next, FIG. 2 shows a control flow of the charging control device for a vehicle generator according to the present invention, and the description will be made along this flow. First, as the battery is used for a long period of time, the acceptance of the battery deteriorates, and the battery is discharged only by controlling the battery to a constant voltage. Therefore, in the present invention, first, the output impedance Z O of the battery 5 is detected by the output impedance detecting means 7. This output impedance detection means 7 is provided when the change amount detection means 6 outputs a permission signal, closes the starter switch 2, and starts the starter 1.
The current I B at the starter start and the voltage V B of the battery 5 measured by the current detector 3 are taken in by 7a and 7b.
As shown in the publication 27646, the output impedance calculation circuit 7
The c, the output impedance Z O as (E-V B) / Request I B. At this time, E is the open circuit voltage of the battery. This output impedance Z O is compared with a predetermined value Z OH (determined from an output impedance necessary for starting the starter), and if Z O > Z OH , that is, if the battery output impedance Z O is higher than the predetermined value Z OH. It is determined that the battery 5 has undergone capacity reduction or deterioration. Then, when the battery output impedance is higher than the predetermined value Z OH by the output impedance detecting means 7,
A signal is sent to the adjustment voltage calculating means 9 to adjust the adjustment voltage to the current adjustment voltage Vreg (n−1) ｛normally, 1 in the initial state.
4.5V (first predetermined voltage)}, and raise the new adjustment voltage Vreg (n) to Vreg (n) = Vreg (n−1) + ΔV 1
Is determined. Here, ΔV 1 is set to about 0.05 [V]. Thereafter, the regulated voltage of the generator 4 is set to Vreg (n) (14.55V) by the voltage control means 11, and the voltage of the battery 5 is set to 1
Charge to 4.55 [V]. Also, this 14.55
[V] is stored in the adjustment voltage storage means 10. Therefore, the charging performance of the battery is improved, and the starter startability and the like are improved. After that, similarly, the output impedance Z O is detected,
If this output impedance Z O is Z OL <Z O <Z OH ,
( ZOL is determined by the battery characteristics so that the battery is not overcharged.) Since the battery 5 is properly charged, the regulated voltage of the generator 4 becomes Vr.
The battery 5 is charged with eg (n) (14.55 V). Further, after that, the battery 5 deteriorates, and the output impedance Z O
However, if Z O > Z OH , as described above, the adjustment voltage of the generator 4 is increased by 0.05 V from 14.55 V to 14.6 V. As described above, the adjustment voltage of the generator 4 is increased stepwise by 0.05 V in accordance with the progress of the discharging state of the battery. As described above, by gradually increasing the adjustment voltage of the generator stepwise according to the discharge state of the battery, the battery is not charged more than necessary, so that fuel efficiency is improved and overcharge The liquid leakage of the battery can be prevented. However, even if the regulated voltage of the generator is gradually increased and the regulated voltage reaches the second predetermined value V C (15 V), if the output impedance Z does not fall below the required value Z OH , the battery 5 has a long life. Therefore, an alarm indicating the replacement time of the battery 5 is issued. Further, the upper limit of the adjustment voltage is set to a second predetermined voltage V C, and the number of consecutive predetermined regulated voltage continuously, V C
If it is, it is also possible to give an alarm. On the other hand, the output impedance detecting means 7
If the battery output impedance Z 0 is as below Z OL, the state of charge of the battery is determined to be charged more than necessary. As described above, when the battery output impedance Z 0 is lower than the predetermined value Z OL , the adjustment voltage is set to about 0.05 V (ΔΔV) similarly to the current adjustment voltage Vreg (n−1).
V 2 ) Lower and adjust the new adjustment voltage Vreg (n) to Vreg (n)
= Vreg (n-1) can also be determined with the - [Delta] V 2. As described above, in the present invention, the output impedance of the battery is measured to detect the discharge state of the battery. Therefore, it is necessary to accurately measure the output impedance of the battery. In particular, since the output impedance of a battery changes due to polarization, accurate measurement of the output impedance by one method described below will be briefly described. First, the output impedance Z and the open circuit voltage E of the battery
By paying attention to the point that the change of the battery voltage coincides with that of the battery and knowing the amount of change of the open circuit voltage E of the battery, it is possible to determine the change of the output impedance Z, that is, the presence or absence of polarization of the battery. First, the change amount detecting means 6 detects the stop of the vehicle. After detecting the stop state of the vehicle, the open-circuit voltage E of the battery 5 is detected by the voltage measuring means 6b.
The the first open-circuit voltage E 1. And a constant interval ΔT
(For example, 1 hour measurement by timer 6b etc.)
Measuring a second open-circuit voltage E 2 of the battery 5. At that time, the first open-circuit voltage E 1 and the difference between the second open-circuit voltage E 2 compared in the comparator 6d, the absolute value of the difference (E 2 -E 1) | E 2
Compare whether −E 1 | is greater than a predetermined value E ref . If this absolute value | E 2 −E 1 | is larger than the predetermined value E ref , the polarization of the battery 5 remains even if the output impedance Z is measured. to decide. Thereafter, in the stopped state of the vehicle, the open circuit voltage E of the battery 5 is measured at a constant interval ΔT until the absolute value | E n + 1 −E n | becomes smaller than the predetermined value E ref . On the other hand, if the absolute value | E n + 1 −E n | is smaller than the predetermined value E ref , the effect of the polarization of the battery 5 is almost eliminated, and the state of the battery can be accurately detected by measuring the output impedance Z. Judge. And a constant interval ΔT
Measurement of the open circuit voltage E of the battery 5 is stopped. The output impedance measuring means 7 is provided with a battery 5.
Since the measurement of the output impedance Z is permitted because there is no influence of the polarization, the output impedance Z can always be accurately detected. Also, instead of measuring the amount of change in the open circuit voltage of the battery,
It is also possible to select the longest time in the battery where the influence of the polarization of the battery is almost negligible, and measure the output impedance of the battery after the vehicle has stopped and after the longest time has passed.
【図面の簡単な説明】
第１図は本発明車両用発電機の充電制御装置の一実施例
を示すシステム図、第２図は第１図における装置の制御
の流れを示すフローチャートである。
１……スタータ,2……スタータスイッチ,3……電流検出
器,5……バッテリ,6……変化量検出手段,7……出力イン
ピーダンス検出手段,9……調整電圧演算手段,11……電
圧制御手段。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a system diagram showing one embodiment of a charging control device for a vehicle generator according to the present invention, and FIG. 2 is a flowchart showing a control flow of the device in FIG. 1 Starter, 2 Starter switch, 3 Current detector, 5 Battery, 6 Change amount detection means, 7 Output impedance detection means, 9 Adjustment voltage calculation means, 11 Voltage control means.
Claims (1)
テリの電圧を所定の調整電圧とするよう前記車両用発電
機を制御する電圧調整手段と、 前記バッテリの電圧を含む信号に基づいて、前記バッテ
リの充電状態がその容量あるいは劣化状態に対応した適
正充電状態を上回るか、下回るかを判定するバッテリ状
態の判定手段と、 前記電圧調整手段における調整電圧を、第１の所定電圧
と第２の所定電圧との間を複数に分けて設定される電圧
に前記判定手段の判定に応じて段階的に上昇あるいは下
降させて設定する手段であって、適正充電状態を上回る
と判定されるとき、調整電圧を段階的に上昇させ、適正
充電状態を下回ると判定されるとき、調整電圧を段階的
に下降させる設定手段と を備えることを特徴とする車両用発電機の充電制御装
置。 ２．前記電圧調整手段における調整電圧が第２の所定電
圧の時に、バッテリの寿命を知らせる警報を行うことを
特徴とする特許請求の範囲第１項記載の車両用発電機の
充電制御装置。(57) [Claims] A vehicle generator, voltage adjusting means for controlling the vehicle generator so that a voltage of a battery charged by the vehicle generator is set to a predetermined adjustment voltage, and Battery state determining means for determining whether the state of charge of the battery is above or below a proper state of charge corresponding to its capacity or deterioration state; and adjusting the voltage adjusted by the voltage adjusting means to a first predetermined voltage and a second predetermined voltage. Means for setting the voltage to be set by dividing the predetermined voltage into a plurality of steps in accordance with the determination of the determination means by increasing or decreasing step by step, when it is determined that the proper charge state is exceeded, Setting means for increasing the adjustment voltage in a stepwise manner and decreasing the adjustment voltage in a stepwise manner when it is determined that the adjustment voltage falls below a proper state of charge. 2. 2. The charging control device for a vehicle generator according to claim 1, wherein when the voltage adjusted by the voltage adjusting means is a second predetermined voltage, an alarm is issued to notify the life of the battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62286178A JP2762442B2 (en) | 1987-11-12 | 1987-11-12 | Charge control device for vehicle generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62286178A JP2762442B2 (en) | 1987-11-12 | 1987-11-12 | Charge control device for vehicle generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01129724A JPH01129724A (en) | 1989-05-23 |
| JP2762442B2 true JP2762442B2 (en) | 1998-06-04 |
Family
ID=17700955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62286178A Expired - Lifetime JP2762442B2 (en) | 1987-11-12 | 1987-11-12 | Charge control device for vehicle generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2762442B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4001072B2 (en) | 2003-01-29 | 2007-10-31 | 株式会社デンソー | Vehicle power generation system |
| JP5195770B2 (en) * | 2010-01-12 | 2013-05-15 | 三菱自動車工業株式会社 | Power generation control device |
| WO2020137815A1 (en) * | 2018-12-25 | 2020-07-02 | 三洋電機株式会社 | Standby power supply device and method for charging secondary battery |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62193207A (en) * | 1986-02-20 | 1987-08-25 | 松下電器産業株式会社 | Voltage nonlinear device |
-
1987
- 1987-11-12 JP JP62286178A patent/JP2762442B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01129724A (en) | 1989-05-23 |
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