JPS6193224A - Fan motor monitoring driver - Google Patents
Fan motor monitoring driverInfo
- Publication number
- JPS6193224A JPS6193224A JP21263284A JP21263284A JPS6193224A JP S6193224 A JPS6193224 A JP S6193224A JP 21263284 A JP21263284 A JP 21263284A JP 21263284 A JP21263284 A JP 21263284A JP S6193224 A JPS6193224 A JP S6193224A
- Authority
- JP
- Japan
- Prior art keywords
- fan motor
- circuit
- water temperature
- temperature switch
- output
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/02—Controlling of coolant flow the coolant being cooling-air
- F01P7/08—Controlling of coolant flow the coolant being cooling-air by cutting in or out of pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/14—Indicating devices; Other safety devices
- F01P11/16—Indicating devices; Other safety devices concerning coolant temperature
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Protection Of Generators And Motors (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
ＦＦ凰乗用車のラジェータ冷却用ファンモータ監視駆動
装置に係る。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a radiator cooling fan motor monitoring drive device for a front-wheel drive passenger car.
〈従来の技術と問題点〉
ＦＦ型乗用車はエンジンの置き方の都合によシ、ラジェ
ータ冷却ファン（以下ファンと呼ぶ）はエンジンから直
接機械的に駆動できないため。<Conventional technology and problems> Due to the placement of the engine in front-wheel drive passenger cars, the radiator cooling fan (hereinafter referred to as fan) cannot be mechanically driven directly from the engine.
電気的にモータで駆動している。処がこのモータの電気
回路に故障たとえば、コネクタ外れ、フユーズ切れ、接
触不良等の回路的不具合があると、ファンが動作せずエ
ンジンがオーバーヒートヲ起すことがあった。It is electrically driven by a motor. However, if there is a malfunction in the electric circuit of this motor, such as a disconnected connector, a blown fuse, or poor contact, the fan may not operate and the engine may overheat.
本発明はかかる技術的厖枝゛に応えてなされたもので、
エンジンスタート時にファンモータの電気回路の異常を
検出するとともにラジェータの水温を検知し、別系統で
ファンモータを駆動させるファンモータ監視駆動装置を
提供することを目的としている。The present invention was made in response to such technical developments.
It is an object of the present invention to provide a fan motor monitoring and driving device that detects an abnormality in the electric circuit of a fan motor when starting an engine, detects the water temperature of a radiator, and drives the fan motor using a separate system.
く問題点を解決するだめの手段〉
かかる目的を達成した本発明によるファンモータ監視駆
動装置の構成は、ラジェータの水温に応じて開閉する水
温スイッチと、該水温スイツチにより作動するファンモ
ータと、水温スイッチの電源側端子に接続された短絡・
開放検出回路と、水温スイッチのファンモータ側端子に
接続された開放検出回路と、前記短絡・開放検出回路と
前記開放検出回路とのうち少なくともどちらか一方から
出力があったとき出力する警告回路と、該警告回路の出
力信号が出力され、かつラジェータの水温が所定温度を
超えたことを検知したとき前記ファンモータを前記水温
スイッチとは別系統で駆動するファンモータ駆動回路と
、を有することを特徴とする。A fan motor monitoring and driving device according to the present invention that achieves the above object has a configuration including a water temperature switch that opens and closes depending on the water temperature of the radiator, a fan motor that is operated by the water temperature switch, and a fan motor that operates according to the water temperature of the radiator. A short circuit connected to the power terminal of the switch
an open detection circuit, an open detection circuit connected to the fan motor side terminal of the water temperature switch, and a warning circuit that outputs an output when there is an output from at least one of the short circuit/open detection circuit and the open detection circuit. , a fan motor drive circuit that drives the fan motor in a separate system from the water temperature switch when the output signal of the warning circuit is output and it is detected that the water temperature of the radiator exceeds a predetermined temperature. Features.
〈実施例〉
本発明によるファンモータ監視駆動装置の一実施例につ
き１図面を参胛しながら説明する。<Embodiment> An embodiment of the fan motor monitoring and driving device according to the present invention will be described with reference to one drawing.
図は本発明の一実施例の回路構成図である。The figure is a circuit configuration diagram of an embodiment of the present invention.
図に示す如く、ファンモータｌの１端は接地されていて
、他端は水温スイッチ２、フユーズ３、ＩＧスイッチ４
を経て電源ＡＭに接続されている。水温スイッチ２は電
源側端子Ｘとファンモータ側端子Ｙとがラジェータの水
温によって制御される可動片２ａの駆動でＯＮ・ＯＦＦ
される。水温スイッチ２の電源側端子ＸにはＸ端子の短
絡・解放の状態を検知する短絡・開放検出回路５が接続
され、水温スイッチ２のファンモータ側端子ＹにはＸ端
子開放の状態を検知する開放検出回路６が接続されてい
る。また、短絡・開放検出回路５と開放検出回路６のそ
れぞれの出力はＯＲ回路７に入力され、ＯＲ回路７の出
力はフリップフロップ回路８のセット端子に入力されて
いる。フリップフロップ回路８のＱ端子はインバータ９
を経てウオーニングランプ１０に接続されウオーニング
ランプ１０の他端は電源ＡＭに接続されている。警告回
路１８はＯＲ回路７及びフリップフロップ回路８を含む
。またエンジンラジェータの水温を検知し水温スイッチ
２を駆動するセンダの抵抗１１の端子電圧、及び上記水
温スイッチが作動するときのセンダの抵抗の端子電圧を
検出する特定の参照電圧電源１２とを入力とするコンパ
レータ１３の出力は上記スリップフロツブ回路８のＱ端
子の出力とともにナンド回路１４に入力し、ナンド回路
１４の出力にバックアップリレー１６の駆動コイル１５
が電源ＡＭとの間に接続されている。ファンモータ駆動
回路１９はコンパレータ１３．ナンド回路１４を含む。As shown in the figure, one end of the fan motor l is grounded, and the other end is connected to the water temperature switch 2, fuse 3, and IG switch 4.
It is connected to the power supply AM via. The water temperature switch 2 is turned on and off by driving the movable piece 2a, which is controlled by the water temperature of the radiator, between the power supply side terminal X and the fan motor side terminal Y.
be done. A short circuit/open detection circuit 5 is connected to the power supply side terminal X of the water temperature switch 2 and detects the short circuit/open state of the X terminal, and the fan motor side terminal Y of the water temperature switch 2 detects the open state of the X terminal. An open detection circuit 6 is connected. Further, the respective outputs of the short/open detection circuit 5 and the open detection circuit 6 are input to an OR circuit 7, and the output of the OR circuit 7 is input to a set terminal of a flip-flop circuit 8. The Q terminal of the flip-flop circuit 8 is connected to the inverter 9
The other end of the warning lamp 10 is connected to a power source AM. Warning circuit 18 includes an OR circuit 7 and a flip-flop circuit 8. In addition, a terminal voltage of a sender resistor 11 that detects the water temperature of the engine radiator and drives the water temperature switch 2, and a specific reference voltage power source 12 that detects the terminal voltage of the sender resistor when the water temperature switch is activated are input. The output of the comparator 13 is input to the NAND circuit 14 together with the output of the Q terminal of the slip-flop circuit 8, and the output of the NAND circuit 14 is connected to the drive coil 15 of the backup relay 16.
is connected between the power supply AM and the power supply AM. The fan motor drive circuit 19 is connected to the comparator 13. It includes a NAND circuit 14.
伺バックアップリレー１６の駆動コイル１５の付勢で閉
じられる回路接点１６ａ、１６ｂはＩＧスイッチ４とフ
ァンモータ１との間にフユーズ１７ｅ介して装荷されて
いる。本発明によるファンモータ監視駆動装置によれば
、ＩＧスイッチ４が投入され、水温スイッチ２が作動す
る間に、ファンモータの電２回路に異常があればこれを
検出レウォーニングランプ１０′ｌｒ、点灯してドライ
バに知らせるとともに、さらにバックアンプ機能として
この異常検出の信号とともに水温スイッチ２のセンダの
抵抗の電圧を監視し、水温スイッチ２が作動する温度を
示す電圧を検出して、二つの検出信号にもとづいてバッ
クアップリン−１６の駆動コイル１５を付勢し、ファン
モータ１を別系統で直接電源に接続し、ファンモータ１
を駆動し、ファンモータ１の電気回路の異常によってフ
ァンモータ１が動作しない状態から守る完全なフエール
セイフ機能を与えるものである。Circuit contacts 16a and 16b, which are closed by the energization of the drive coil 15 of the backup relay 16, are installed between the IG switch 4 and the fan motor 1 via a fuse 17e. According to the fan motor monitoring and driving device according to the present invention, while the IG switch 4 is turned on and the water temperature switch 2 is activated, if there is an abnormality in the electric circuit of the fan motor, the warning lamp 10'lr is turned on. In addition, the back amplifier function monitors the voltage of the sender resistor of the water temperature switch 2 along with this abnormality detection signal, detects the voltage indicating the temperature at which the water temperature switch 2 operates, and outputs two detection signals. Based on this, the drive coil 15 of the backup link 16 is energized, the fan motor 1 is directly connected to the power supply via a separate system, and the fan motor 1 is
This provides a complete fail-safe function that protects the fan motor 1 from not operating due to an abnormality in the electric circuit of the fan motor 1.
図において、水温スイッチ２のＸ端子と電源の間にフユ
ーズ切れ、回路切断等の回路が開放された異状及びＸ端
子が短絡・状態にあるといった回路異状があるとＸ端子
に接続された短絡・開放検出回路５がこれらの異状を検
出し、出力“ｌ”ｔＯＲ回路７へ入力する。またＸ端子
に接続された開放検出器６はＸ端子がファンモータｌで
接地された状態あるいは水温スイッチ２が投入されてＸ
端子が電源電位になった場合 ′は正常のため検出せず
、Ｘ端子が開放の状態は回路異常でありこの状態を検出
する。Ｘ端子の開放検出回路６が開放を検出すると、検
出出力“１″はＯＲ回路７へ入力される。ＯＲ回路７は
異常検出の入力があればクリップフロンプ回路８ｆｔセ
ントし、Ｑ端子に出力信号が現われ、インバータ９で反
転され、インバータ９の出力はＯ電位となりウオーニン
グランプ１０に電源電圧が作用し、点灯し、ファンモー
タ回路に異常があること金知らせる。ウオーニングラン
プ１０はフリップフロップ回路８で自己保持されており
、リセット端子へのＩＧスイッチ４のＯＦＦ信号により
自己保持が解かれ消灯する。異常検知をしてウオーニン
グラングを点灯しただけでは異常の解決にはなっておら
ず不充分であるので、さらにエンジンラジェータの水温
を検知し、水温スイッチ２を駆動するセンダの抵抗（Ｒ
）ｔ １の端子電圧全入力し、水温スイッチ２の作動時
のセンダの抵抗１１の端子電圧を検出する特定の参照電
圧１２とを入力するコンパレータ１３の出力と、上述の
異常検知信号によるスリップフロップ回路８の出力とに
よってナンド回路１４を駆動し、バックアップリレー１
６の駆動コイル１５を付勢し、ＩＧスイッチ４にフユー
ズ１７を介して接続されているバック７ノプリンー１６
の回路接点１６＆とファンモータｌに接続されているバ
ックアップリレー１６の他方の回路接点１６ｂ’ｌｉ−
可動片によって短絡し、ファンモータ１に電源電圧を印
加してファンモータｌｉ駆動することによって、ファン
モータ１の回路異常を検出するのみでなく、別系統の回
路でファンモータｌ’に動作させエンジンラジェータノ
過熱を防止することができるっ
〈発明の効果〉
本発明によるファンモー゛夕監視駆動装置によれば、Ｉ
Ｇスイッチ投入後、水温スイッチが作動するまでの間に
ファンモータの回路異常があればこれを検出し、ドライ
バにラジェータファンモータ回路の異状を知らせるとと
もに、ラジェータの水温を検知して所定温度を超えたこ
とを検知したとき別系統の回路でファンモータ全動作さ
せエンジンラジェータの過熱を防止することができるの
で、ＦＦ乗用車におけるファンモータ異常によるラジェ
ータのオーバヒートニよる事故を未然に防止することが
できるようになった。In the figure, if there is an open circuit such as a blown fuse or disconnected circuit between the X terminal of the water temperature switch 2 and the power supply, or a circuit abnormality such as the X terminal is short-circuited, there is a short circuit connected to the X terminal. The open detection circuit 5 detects these abnormalities and inputs them to the output "l" tOR circuit 7. Also, the open detector 6 connected to the X terminal is connected to the
When the terminal reaches the power supply potential, ' is normal and is not detected, and when the X terminal is open, the circuit is abnormal and this state is detected. When the X terminal open detection circuit 6 detects an open circuit, the detection output "1" is input to the OR circuit 7. When the OR circuit 7 receives an abnormality detection input, the clip flop circuit 8ft is output, an output signal appears at the Q terminal, which is inverted by the inverter 9, and the output of the inverter 9 becomes O potential, and the power supply voltage is applied to the warning lamp 10. The lamp lights up to notify you that there is an abnormality in the fan motor circuit. The warning lamp 10 is self-held by a flip-flop circuit 8, and the self-holding is released by an OFF signal from the IG switch 4 to the reset terminal, so that the warning lamp 10 is turned off. Merely detecting an abnormality and lighting the warning rung does not resolve the abnormality and is insufficient; therefore, the sensor's resistance (R) that detects the water temperature of the engine radiator and drives the water temperature switch 2
) The output of the comparator 13 which inputs the full terminal voltage of t 1 and the specific reference voltage 12 that detects the terminal voltage of the resistor 11 of the sender when the water temperature switch 2 is activated, and the slip-flop according to the above-mentioned abnormality detection signal. The NAND circuit 14 is driven by the output of the circuit 8, and the backup relay 1
The back 7 nozzle 16 is connected to the IG switch 4 via the fuse 17.
and the other circuit contact 16b'li- of the backup relay 16 connected to the fan motor l.
By short-circuiting the movable piece and applying power supply voltage to the fan motor 1 to drive the fan motor li, it is possible to not only detect a circuit abnormality of the fan motor 1, but also to operate the fan motor l' using a separate circuit to control the engine. It is possible to prevent overheating of the radiator. <Effects of the Invention> According to the fan motor monitoring drive device according to the present invention,
If there is an abnormality in the fan motor circuit after the G switch is turned on and before the water temperature switch is activated, this will be detected and the driver will be notified of the abnormality in the radiator fan motor circuit, and the radiator water temperature will be detected and the temperature will exceed a predetermined temperature. When this is detected, the fan motor is fully activated in a separate circuit to prevent the engine radiator from overheating, which can prevent accidents caused by radiator overheating due to fan motor abnormality in front-wheel drive passenger cars. Became.
図は本発明によるファンモータ監視駆動装置の一実施例
の回路構成図である。
図面中、
１はファンモータ、２は水温スイッチ、３はフユーズ、
４はＩＧスイッチ、５は短絡・開放検出回路、６は開放
検出回路、７はＯＲ回路、８はフリップフロップ回路、
９はインバータ、１０はウオーニングラング、１１はセ
ンダの抵抗、１２は参照電圧電源、１３はコンパレータ
。
１４はナンド回路、１５はバンクアンプリン−のコイル
、１６はバックアップリレー、１６ａ。
１６ｂｕバツクアツプリレーの回路接点、１７はフユー
ズ、１８は警告回路、１９はファンモータ駆動回路であ
る。
特許出願人 日産自動車株式会社
住友電気工業株式会社The figure is a circuit configuration diagram of an embodiment of a fan motor monitoring and driving device according to the present invention. In the drawing, 1 is the fan motor, 2 is the water temperature switch, 3 is the fuse,
4 is an IG switch, 5 is a short circuit/open detection circuit, 6 is an open detection circuit, 7 is an OR circuit, 8 is a flip-flop circuit,
9 is an inverter, 10 is a warning rung, 11 is a transmitter resistor, 12 is a reference voltage power supply, and 13 is a comparator. 14 is a NAND circuit, 15 is a bank amplifier coil, 16 is a backup relay, and 16a. 16 is a circuit contact of a back-up relay, 17 is a fuse, 18 is a warning circuit, and 19 is a fan motor drive circuit. Patent applicant Nissan Motor Co., Ltd. Sumitomo Electric Industries, Ltd.
Claims (1)
水温スイッチにより作動するファンモータと、水温スイ
ッチの電源側端子に接続された短絡・開放検出回路と、
水温スイッチのファンモータ側端子に接続された開放検
出回路と、前記短絡・開放検出回路と前記開放検出回路
とのうち少なくともどちらか一方から出力があつたとき
出力する警告回路と、該警告回路の出力信号が出力され
、かつラジエータの水温が所定温度を超えたことを検知
したとき前記ファンモータを前記水温スイッチとは別系
統で駆動するファンモータ駆動回路と、を有することを
特徴とするファンモータ監視駆動装置。A water temperature switch that opens and closes according to the water temperature of the radiator, a fan motor that is operated by the water temperature switch, and a short circuit/open detection circuit that is connected to the power supply terminal of the water temperature switch.
an open detection circuit connected to the fan motor side terminal of the water temperature switch; a warning circuit that outputs when an output is received from at least one of the short circuit/open detection circuit and the open detection circuit; A fan motor comprising: a fan motor drive circuit that drives the fan motor in a system separate from the water temperature switch when an output signal is output and it is detected that the water temperature of the radiator exceeds a predetermined temperature. Monitoring drive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21263284A JPS6193224A (en) | 1984-10-12 | 1984-10-12 | Fan motor monitoring driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21263284A JPS6193224A (en) | 1984-10-12 | 1984-10-12 | Fan motor monitoring driver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6193224A true JPS6193224A (en) | 1986-05-12 |
| JPH025892B2 JPH025892B2 (en) | 1990-02-06 |
Family
ID=16625873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21263284A Granted JPS6193224A (en) | 1984-10-12 | 1984-10-12 | Fan motor monitoring driver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6193224A (en) |
-
1984
- 1984-10-12 JP JP21263284A patent/JPS6193224A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH025892B2 (en) | 1990-02-06 |
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