JPH0568931B2 - - Google Patents
Info
- Publication number
- JPH0568931B2 JPH0568931B2 JP58206272A JP20627283A JPH0568931B2 JP H0568931 B2 JPH0568931 B2 JP H0568931B2 JP 58206272 A JP58206272 A JP 58206272A JP 20627283 A JP20627283 A JP 20627283A JP H0568931 B2 JPH0568931 B2 JP H0568931B2
- Authority
- JP
- Japan
- Prior art keywords
- power generation
- battery
- switching element
- charging generator
- lead wire
- 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 - Fee Related
Links
Landscapes
- Control Of Charge By Means Of Generators (AREA)
- Control Of Eletrric Generators (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は車両用充電発電機の発電を制御するこ
とにより、バツテリの充電電圧を適正に維持する
充電発電機用制御装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a control device for a charging generator that maintains an appropriate battery charging voltage by controlling power generation of a vehicle charging generator.
充電発電機用制御装置は、これに設けた通電制
御用トランジスタにより充電発電機のロータコイ
ル電流を制御して、エンジンに連結せしめられて
回転数が変化する上記発電機の発電を制御し、も
つてバツテリに印加される充電電圧を適正な一定
値に維持している。
The charging generator control device controls the rotor coil current of the charging generator by means of an energization control transistor provided therein, and controls the power generation of the generator connected to the engine and whose rotational speed changes. The charging voltage applied to the battery is maintained at an appropriate constant value.
したがつて、何等かの原因で上記制御用トラン
ジスタが短絡故障した場合等では、発電機は全発
電状態となり、バツテリに印加される電圧が急上
昇して、バツテリの過充電あるいはこれに接続さ
れた各種電装品の故障を引き起すことがある。 Therefore, if the above-mentioned control transistor is short-circuited or malfunctions for some reason, the generator will go into full power generation mode, and the voltage applied to the battery will suddenly rise, causing overcharging of the battery or damage to the battery connected to it. It may cause failure of various electrical components.
そこで、バツテリ充電電圧が上限を越えた場合
には、発電機の発電を速やかに停止せしめること
が望ましい。 Therefore, when the battery charging voltage exceeds the upper limit, it is desirable to immediately stop the power generation of the generator.
本発明は上記要請に鑑み、ロータコイル電流の
制御に異常を生じた場合には速やかに充電発電機
の発電を停止せしめるようになした充電発電機用
制御装置を提供することを目的とする。
SUMMARY OF THE INVENTION In view of the above-mentioned needs, an object of the present invention is to provide a control device for a charging generator that promptly stops power generation of the charging generator when an abnormality occurs in the control of the rotor coil current.
本発明の構成を説明すると、基板２Ｂ上に設け
た発電用スイツチング素子２１１を介して車両用
充電発電機のロータコイル１１電流を制御するこ
とにより、充電発電機１の発電を制御し、もつて
バツテリ３の充電電圧を適正に維持する発電制御
手段２１を設けた車両充電発電機用制御用装置に
おいて、バツテリ端子間に直列に接続され、負荷
駆動手段２３により選択的に導通せしめられて、
異なる外部負荷５，６に選択通電する一対の負荷
駆動用スイツチング素子２３１，２３２を上記基
板２Ｂ上に設けるとともに、上記発電用スイツチ
ング素子２１１の一端と一方の負荷駆動用スイツ
チング素子２３２の一端とを、所定電流以上で溶
断する共通のリード線L3を介して基板２Ｂ外の
バツテリ端子に接続し、上記ロータコイル電流の
制御に異常を生じた時に上記負荷駆動用スイツチ
ング素子２３１，２３２をいずれも導通せしめ
て、上記リード線L3を溶断するようになしたも
のである。
To explain the configuration of the present invention, the power generation of the charging generator 1 is controlled by controlling the current of the rotor coil 11 of the vehicle charging generator 1 through the power generation switching element 211 provided on the substrate 2B. In a vehicle charging generator control device provided with a power generation control means 21 for maintaining the charging voltage of a battery 3 appropriately, the battery terminals are connected in series and selectively made conductive by a load drive means 23.
A pair of load driving switching elements 231 and 232 that selectively energize different external loads 5 and 6 are provided on the substrate 2B, and one end of the power generation switching element 211 and one end of one load driving switching element 232 are connected. , is connected to the battery terminal outside the board 2B via a common lead wire L3 that melts at a predetermined current or higher, and when an abnormality occurs in the control of the rotor coil current, both of the load driving switching elements 231 and 232 are The lead wire L3 is made conductive and fused.
上記構成において、発電用スイツチング素子２
１１の短絡故障等によりロータコイル１１電流の
制御に異常を生じた場合には、バツテリ端子間に
直列接続された負荷駆動用スイツチング素子２３
１，２３２がいずれも導通せしめられる。これに
より、発電用スイツチング素子２１１と共用して
いるリード線L3に大きな電流が流れてこれが溶
断せしめられ、ロータコイル１１への電流が遮断
されてバツテリ充電電圧の過度の上昇が防止され
る。 In the above configuration, the power generation switching element 2
If an abnormality occurs in the control of the rotor coil 11 current due to a short-circuit failure or the like in the rotor coil 11, the load driving switching element 23 connected in series between the battery terminals
1,232 are both made conductive. As a result, a large current flows through the lead wire L3 shared with the power generation switching element 211, causing it to melt, cutting off the current to the rotor coil 11, and preventing the battery charging voltage from rising excessively.
かかる構成によれば、基板２Ｂ外との接続を行
うリード線L3をヒユーズ素子として利用するか
ら、別体にヒユーズを設ける必要がない上に、負
荷駆動用スイツチング素子２３１，２３２を利用
してヒユーズ素子たる上記リード線Ｌ３の溶断を
行うから、特別なヒユーズ溶断用のスイツチング
素子を設ける必要もない。 According to this configuration, since the lead wire L 3 that connects to the outside of the board 2B is used as a fuse element, there is no need to provide a separate fuse, and the load driving switching elements 231 and 232 are used. Since the lead wire L3, which is a fuse element, is blown, there is no need to provide a special switching element for blowing the fuse.
以下、図示の実施例により本発明を説明する。 The present invention will be explained below with reference to illustrated embodiments.
第１図において、図中１は充電発電機、２は制
御装置（以下レギユレータと言う）である。レギ
ユレータ２は電圧制御回路２１、過電圧検出回路
２２および負荷駆動回路２３により構成してあ
る。また、図中３はバツテリ、４はキースイツ
チ、５はチヤージランプ、６はチヨークヒータで
ある。 In FIG. 1, 1 is a charging generator, and 2 is a control device (hereinafter referred to as a regulator). The regulator 2 includes a voltage control circuit 21, an overvoltage detection circuit 22, and a load drive circuit 23. Further, in the figure, 3 is a battery, 4 is a key switch, 5 is a charge lamp, and 6 is a choke heater.
電圧制御回路２１は、これに設けた発電用トラ
ンジスタ２１１により、発電機１のロータコイル
１１への通電を制御して、ステータコイル１２の
発電を制御し、整流器１３を経てバツテリ３に印
加される充電電圧VBを一定に維持する。 The voltage control circuit 21 controls power supply to the rotor coil 11 of the generator 1 by using a power generation transistor 211 provided therein, controls the power generation of the stator coil 12, and applies the power to the battery 3 via the rectifier 13. Maintain charging voltage V B constant.
負荷駆動回路２３は、キースイツチ４の投入時
に負荷駆動用トランジスタ２３２を導通せしめて
チヤージランプ５を点灯する。 The load drive circuit 23 turns on the load drive transistor 232 and lights up the charge lamp 5 when the key switch 4 is turned on.
発電機１の発電が始まつて、電圧VBが上昇す
ると、上記負荷駆動回路２３は上記トランジスタ
２３２に代えてこれと直列に接続された他の負荷
駆動用トランジスタ２３１を導通せしめ、これに
よつてチヤージランプ５を消灯するとともに、図
示しないチヨーク弁を作動せしめるバイメタルを
加熱する為のチヨークヒータ６を通電する。 When the generator 1 starts generating power and the voltage V B rises, the load driving circuit 23 turns on another load driving transistor 231 connected in series with the transistor 232 instead of the transistor 232. Then, the charge lamp 5 is turned off, and at the same time, the electric current is turned on to the electric heater 6 for heating the bimetal that operates the electric valve (not shown).
上記制御回路２１および負荷駆動回路２３はと
もに公知の回路を使用する。 Both the control circuit 21 and the load drive circuit 23 use known circuits.
過電圧検出回路２２はトランジスタ２２１，２
２２、分圧抵抗２２４，２２５、ツエナーダイオ
ード２２３等で構成してある。そして、抵抗２２
４，２２５は発電機１の出力端子間すなわちバツ
テリ３の両極間に直列に接続してあり、トランジ
スタ２２１のコレクタはダイオード２２６を介し
て、負荷駆動回路２３に設けた上記トランジスタ
２３２のベースに接続してある。 The overvoltage detection circuit 22 includes transistors 221 and 2
22, voltage dividing resistors 224 and 225, a Zener diode 223, and the like. And resistance 22
4 and 225 are connected in series between the output terminals of the generator 1, that is, between both poles of the battery 3, and the collector of the transistor 221 is connected to the base of the transistor 232 provided in the load drive circuit 23 via a diode 226. It has been done.
しかして、充電電圧VBが上昇して、抵抗２２
４，２２５間に現われる分圧電圧Vdが、ツエナ
ーダイオード２２３のツエナー電圧Vzとトラン
ジスタ２２２のベース−エミツタ間電圧VBEの和
（Vz＋VBE）よりも大きくなると、トランジスタ
２２１，２２２が導通し、負荷駆動回路２３のト
ランジスタ２３２が強制的に導通せしめられる。
この時、トランジスタ２３１は導通しているか
ら、上記両トランジスタ２３１，２３２を通つて
大きな短絡電流isが流れる。 As a result, the charging voltage V B rises and the resistor 22
When the divided voltage Vd appearing between 4 and 225 becomes larger than the sum of the Zener voltage Vz of the Zener diode 223 and the base-emitter voltage V BE of the transistor 222 (Vz + V BE ), the transistors 221 and 222 become conductive, and the load Transistor 232 of drive circuit 23 is forced to conduct.
At this time, since the transistor 231 is conductive, a large short-circuit current is flows through both the transistors 231 and 232.
ところで、レギユレータ２を構成する上記各回
路２１，２２，２３は、第２図に示す如く、放熱
フインを形成したケース２Ａ内に収納した基板２
Ｂ上に形成してある。上記ケース２Ａには、ケー
ス外の発電機１やバツテリ３に至る外部配線（図
示せず）の一端が接続されたターミナルＴが設け
てあり、上記各回路２１，２３はリード線Ｌによ
つて上記ターミナルＴに接続してある。すなわ
ち、第１図において、電圧制御回路２１はリード
線L1，L2，L3によつて外部機器と接続され、負
荷駆動回路２３はリード線L4，L5，L6によつて
外部機器と接続してある。このうち、リード線
L3はトランジスタ２１１，２３２の各エミツタ
をバツテリ３のアースラインに導通せしめてい
る。なお、各リード線L1，L2，L3，L4，L5，L6
は比抵抗の大きいニツケル線としてある。 By the way, each of the circuits 21, 22, and 23 constituting the regulator 2 is mounted on a board 2 housed in a case 2A having heat dissipation fins, as shown in FIG.
It is formed on B. The case 2A is provided with a terminal T to which one end of external wiring (not shown) leading to the generator 1 and battery 3 outside the case is connected, and each of the circuits 21 and 23 is connected by a lead wire L. It is connected to terminal T above. That is, in FIG. 1, the voltage control circuit 21 is connected to external equipment through lead wires L 1 , L 2 , and L 3 , and the load drive circuit 23 is connected to external equipment through lead wires L 4 , L 5 , and L 6 . Connected to the device. Among these, the lead wire
L3 connects the emitters of the transistors 211 and 232 to the earth line of the battery 3. In addition, each lead wire L 1 , L 2 , L 3 , L 4 , L 5 , L 6
is a nickel wire with high resistivity.
さて、発電用トランジスタ２１１が短絡故障す
ると、ロータコイル１１の励磁電流ifが流れ続
け、発電機１は全発電状態となつてバツテリ充電
電圧VBは急速に上昇する。これに伴なつて、分
圧電圧Vdも上昇し、これが電圧（Vz＋VBE）を
越えると、前述の如くトランジスタ２２１を介し
てトランジスタ２３２が導通せしめられ、トラン
ジスタ２３１，２３２を通つて大きな短絡電流is
が流れる。 Now, when the power generation transistor 211 is short-circuited, the excitation current if of the rotor coil 11 continues to flow, the generator 1 enters a full power generation state, and the battery charging voltage V B rapidly increases. Along with this, the divided voltage Vd also rises, and when this exceeds the voltage (Vz+V BE ), the transistor 232 is made conductive via the transistor 221 as described above, and a large short-circuit current is passed through the transistors 231 and 232.
flows.
上記短絡電流isはリード線L3に流れ込み、リー
ド線L3は抵抗発熱して瞬時に溶断する。これに
より、励磁電流ifは遮断され、発電機１の発電が
停止して、充電電圧VBは速やかに低下しせめら
れる。 The short-circuit current is flows into the lead wire L3 , and the lead wire L3 generates heat due to its resistance and instantly melts down. As a result, the excitation current if is cut off, power generation by the generator 1 is stopped, and the charging voltage V B is quickly lowered.
以上の如く、本発明によれば、発電用スイツチ
ング素子の短絡故障時等には、ヒユーズ素子とし
て機能するリード線が溶断せしめられることによ
りロータコイル電流が遮断されて、バツテリ充電
電圧が速やかに低下せしめられ、バツテリの過充
電や電装品の破壊が未然に防止される。
As described above, according to the present invention, in the event of a short-circuit failure of a power generation switching element, the lead wire functioning as a fuse element is blown, cutting off the rotor coil current, and the battery charging voltage quickly decreases. This prevents overcharging of the battery and destruction of electrical components.
リード線の溶断は、直列に接続された負荷駆動
用スイツチング素子をいずれも導通作動せしめる
ことにより行うから、特別な溶断専用のスイツチ
ング素子を設ける必要はなく、リード線をヒユー
ズ素子として利用することと相俟つて、装置の回
路構成の簡素化とコンパクト化が実現される。 Since the lead wire is fused by activating all the load drive switching elements connected in series, there is no need to provide a special switching element for fusing, and the lead wire can be used as a fuse element. Together, the circuit configuration of the device can be simplified and made more compact.
なお、上記リード線としてはニツケル線以外に
比抵抗の大きい金属線ならば良い。 It should be noted that the lead wire may be a metal wire other than a nickel wire as long as it has a high specific resistance.
第１図は制御装置の回路図、第２図は制御装置
の実装構造を示す部分断面側面図である。
１……充電発電機、１１……ロータコイル、２
……制御装置、２Ｂ……基板、２１……電圧制御
回路（電圧制御手段）、２２……過電圧検出回路、
３……負荷駆動回路（負荷駆動手段）、２１１…
…発電用トランジスタ（発電用スイツチング素
子）、２３１，２３２……負荷駆動用トランジス
タ（負荷駆動用スイツチング素子）、３……バツ
テリ、５……チヤージランプ（外部負荷）、６…
…チヨークヒータ（外部負荷）、L3……リード
線。
FIG. 1 is a circuit diagram of the control device, and FIG. 2 is a partially sectional side view showing the mounting structure of the control device. 1...Charging generator, 11...Rotor coil, 2
... Control device, 2B ... Board, 21 ... Voltage control circuit (voltage control means), 22 ... Overvoltage detection circuit,
3...Load drive circuit (load drive means), 211...
...Power generation transistor (power generation switching element), 231, 232...Load drive transistor (load drive switching element), 3...Battery, 5...Charge lamp (external load), 6...
...Chiyoke heater (external load), L 3 ...Lead wire.
Claims (1)
して車両用充電発電機のロータコイル電流を制御
することにより、充電発電機の発電を制御し、も
つてバツテリの充電電圧を適正に維持する発電制
御手段を設けた車両充電発電機用制御装置におい
て、バツテリ端子間に直列に接続され、負荷駆動
手段により選択的に導通せしめられて、異なる外
部負荷に選択通電する一対の負荷駆動用スイツチ
ング素子を上記基板上に設けるとともに、上記発
電用スイツチング素子の一端と一方の負荷駆動用
スイツチング素子の一端とを、所定電流以上で溶
断する共通のリード線を介して基板外のバツテリ
端子に接続し、上記ロータコイル電流の制御に異
常を生じた時に上記負荷駆動用スイツチング素子
をいずれも導通せしめて、上記リード線を溶断す
るようになしたことを特徴とする車両充電発電機
用制御装置。 ２ 上記リード線にニツケル線を使用した特許請
求の範囲第１項記載の車両充電発電機用制御装
置。[Claims] 1. By controlling the rotor coil current of the vehicle charging generator through a power generation switching element provided on the substrate, the power generation of the charging generator is controlled, thereby controlling the battery charging voltage. In a control device for a vehicle charging generator, which is provided with a power generation control means for properly maintaining power generation, a pair of loads are connected in series between battery terminals and are selectively made conductive by a load driving means to selectively energize different external loads. A driving switching element is provided on the board, and one end of the power generation switching element and one end of one of the load driving switching elements are connected to a battery terminal outside the board via a common lead wire that is fused at a predetermined current or higher. A control for a vehicle charging generator, characterized in that when an abnormality occurs in the control of the rotor coil current, all of the load driving switching elements are made conductive and the lead wires are fused. Device. 2. The control device for a vehicle charging generator according to claim 1, wherein a nickel wire is used as the lead wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58206272A JPS6098833A (en) | 1983-11-02 | 1983-11-02 | Controller for automotive charging generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58206272A JPS6098833A (en) | 1983-11-02 | 1983-11-02 | Controller for automotive charging generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6098833A JPS6098833A (en) | 1985-06-01 |
| JPH0568931B2 true JPH0568931B2 (en) | 1993-09-30 |
Family
ID=16520574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58206272A Granted JPS6098833A (en) | 1983-11-02 | 1983-11-02 | Controller for automotive charging generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6098833A (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3006108A1 (en) * | 1980-02-19 | 1981-08-27 | Robert Bosch Gmbh, 7000 Stuttgart | BATTERY CHARGING SYSTEM |
-
1983
- 1983-11-02 JP JP58206272A patent/JPS6098833A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6098833A (en) | 1985-06-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |