JPS6119920A - Motor fan control device in automobile - Google Patents

Motor fan control device in automobile

Info

Publication number
JPS6119920A
JPS6119920A JP13964684A JP13964684A JPS6119920A JP S6119920 A JPS6119920 A JP S6119920A JP 13964684 A JP13964684 A JP 13964684A JP 13964684 A JP13964684 A JP 13964684A JP S6119920 A JPS6119920 A JP S6119920A
Authority
JP
Japan
Prior art keywords
fan
timer
fan motor
motor
water temperature
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
JP13964684A
Other languages
Japanese (ja)
Inventor
Yukio Nakazawa
幸雄 中沢
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP13964684A priority Critical patent/JPS6119920A/en
Publication of JPS6119920A publication Critical patent/JPS6119920A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00Controlling of coolant flow
    • F01P7/02Controlling of coolant flow the coolant being cooling-air
    • F01P7/08Controlling of coolant flow the coolant being cooling-air by cutting in or out of pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00Controlling of coolant flow
    • F01P7/02Controlling of coolant flow the coolant being cooling-air
    • F01P7/026Thermostatic control

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)

Abstract

PURPOSE:To reduce fan noise, by lowering the voltage applied to a fan motor when the temperature of engine cooling water exceeds a predetermined value while the ignition key is turned off, so that the rotational speed of the motor is decreased. CONSTITUTION:When the temperature of engine cooling water exceeds a predetermined value while the ignition key is turned off, a turn-on signal from a water temperature switch 8 and an ignition switch turn-off signal are delivered to a timer 10. The timer 10 operates for a predetermined time to energize a timer relay 11, and therefore, a second fan operating circuit is established so that a resistor 12 drops a battery voltage down to a predetermined voltage which is then applied to a fan motor 9. Accordingly, the rotational speed of the motor may be decreased, thereby it is possible to reduce noise.

Description

【発明の詳細な説明】 a、産業上の利用分野 この発明は自動車におけるラジェータ冷却用電動ファン
制御装置に関するものである。
DETAILED DESCRIPTION OF THE INVENTION a. Field of Industrial Application This invention relates to an electric fan control device for cooling a radiator in an automobile.

b、従来の技術 2ジエータ冷却のため1cil動フアンを作動させて行
な5ものが知られているが、このように電動ファンを用
いる場合、走行中にエンジン冷却水温が所定値以上にな
ると水温スイッチがONI、て、バッテリ電圧を直接フ
アンモータヘ印加してファンモータを駆動するようにな
っている一方、イグニツクヨンスイッチをOFFしても
冷却水温が所定値以上の場合は、オーバーヒートの原因
九なるため、タイマを用いて一定時間フアンモータを駆
動させて冷却水を冷却するよう和している〇このような
従来技術は「ニラサンサービス同報B/2型車の紹介」
 (日産自動車発行)K記載されている。
b. Conventional technology 2 A method is known in which a 1 cil dynamic fan is operated to cool the radiator. However, when using an electric fan in this way, if the engine cooling water temperature exceeds a predetermined value while driving, the water temperature When the switch is ON, the battery voltage is applied directly to the fan motor to drive the fan motor. However, if the cooling water temperature remains above the specified value even after the ignition switch is turned OFF, this may cause overheating. Therefore, a timer is used to drive the fan motor for a certain period of time to cool the cooling water. This kind of conventional technology is described in "Nirasan Service Broadcast B/2 Type Car Introduction"
(Published by Nissan Motor Co., Ltd.) K is listed.

C0発明が解決しようとする問題点 ところが、このようなファンモータの制御製蓋では、イ
グニッションキーをOFFにしてもバッテリ電圧が直接
ファンモータに印加されるため、ファンモータが全開で
回転するため、エンジン停止後タイマ作動時間が経過す
るまで、車外でのフアン騒音が大きく自動車の性能・品
質の維持の面では優れているものの環境上決して好まし
いものでなかった。
Problems to be Solved by the C0 Invention However, with such a fan motor control lid, the battery voltage is directly applied to the fan motor even when the ignition key is turned off, so the fan motor rotates at full throttle. After the engine is stopped, until the timer operating time has elapsed, there is a lot of fan noise outside the vehicle, which is excellent in terms of maintaining the performance and quality of the vehicle, but is not at all environmentally friendly.

そこでこの発明は、ファン騒音を低丁させ、環境上好ま
しくして、かつ自動車の性能・品質を確保せんとするも
のである。
Therefore, the present invention aims to reduce fan noise, make it environmentally friendly, and ensure the performance and quality of automobiles.

d1問題点を解決するための手段 この発明はかかる目的を達成するためにイグニッション
キーをOFFした状態でエンジン冷却水温が所定値以上
のときにタイマを用いて一定時間フアンモータを駆動す
る回路中にレジスタンスを介装し、ファンモータへの印
加電圧を下げモータ回転数を落とすようにし、たもので
ある。
Means for Solving Problem d1 In order to achieve the above object, the present invention provides a circuit that uses a timer to drive the fan motor for a certain period of time when the engine coolant temperature is above a predetermined value with the ignition key turned OFF. A resistor is inserted to lower the voltage applied to the fan motor and reduce the motor rotation speed.

e、実施例 図ニオイテ/は車載バッテリ、コはイグニッションスイ
ッチ、3はイグニッションリレー、り。
e, Embodiment diagram / is the vehicle battery, ko is the ignition switch, and 3 is the ignition relay.

!、乙はヒユーズ、7.tはエンジン冷却水を検出し、
冷却水温が所定値(例えば8°C)以上になったらON
する水温スイッチ、9はラジェータ冷却ファン(図示省
略)を作動するためのファンモータ、IOはタイマ、l
/はタイマリレーで、タイマ10の作動によりリレーコ
イル//aを励磁し、リレー接点l/bをONするよう
になっている。12はタイマリレー//とファンモータ
デとの間に介装されたレジスタンスである。
! , B is Hughes, 7. t detects engine cooling water;
Turns on when the cooling water temperature reaches a predetermined value (e.g. 8°C) or higher.
9 is a fan motor for operating a radiator cooling fan (not shown), IO is a timer, l
/ is a timer relay, and the operation of the timer 10 excites relay coil //a and turns on relay contact l/b. 12 is a resistor interposed between the timer relay // and the fan motor device.

シカして、バッテリ/□イグニッションリレー3□ヒユ
ーズクー水温スイッチ7□ファンモータ2□アースで第
1のファン作動回路が形成され、イグニッションスイッ
チがON時にエンジン冷却水温が所定値以上になって、
水温スイッチ7がONしている場合、バッテリ/の電圧
を直接ファンモータ9VC,印加してファンモータデを
駆動するように制御されるよ5VCなっている。
Then, a first fan operating circuit is formed between the battery/□ ignition relay 3 □ fuse coolant temperature switch 7 □ fan motor 2 □ ground, and when the ignition switch is turned on, the engine coolant temperature exceeds a predetermined value.
When the water temperature switch 7 is ON, the battery voltage is directly applied to the fan motor at 9 VC to drive the fan motor (5 VC).

また、バッテリ/□フユーズ!□タイマリレー//□レ
ジスタンス12□ファンモータター−アースで第2のフ
ァン作動回路が形成され、イグニッションスイッチjが
OFF時に、エンジン冷却水温が所定値以上になって水
温スイッチとがONしている場合、タイマlOが一定時
間作動し、タイマリレーl/を作動させてレジスタンス
12で下げられた電圧をファンモータデに印加し、ファ
ンモータデを駆動するように制御されるようになってい
る。
Also, battery/□Fuse! □Timer relay//□Resistance 12□Fan motor - A second fan operating circuit is formed by ground, and when the ignition switch j is OFF, the engine coolant temperature exceeds a predetermined value and the water temperature switch is turned ON. In this case, the timer lO operates for a certain period of time, and the timer relay l/ is activated to apply the voltage lowered by the resistor 12 to the fan motor, thereby controlling the fan motor to be driven.

かかる構成により、 ■イグニッションスイッチON時のファン作動走行中に
エンジン冷却水温が所定値以上になると、水温スイッチ
7がONとなり、第1のファン作動回路が働いてファン
モータPKバッテリ電圧(/2 V )が印加され、モ
ータデが駆動し、エンジン冷却水温が所定値より丁がる
と水温スイッチ7がOFFし、ファンモータデが駆動停
止スる。これによりエンジンのオーバーヒートを防止し
、自動車の性能・品質を保持することができる。
With this configuration, ■Fan operation when the ignition switch is ON When the engine cooling water temperature reaches a predetermined value or higher while driving, the water temperature switch 7 is turned ON, the first fan operation circuit is activated, and the fan motor PK battery voltage (/2 V) is activated. ) is applied, the motor is driven, and when the engine cooling water temperature drops below a predetermined value, the water temperature switch 7 is turned off and the fan motor stops driving. This prevents the engine from overheating and maintains the performance and quality of the vehicle.

■イクニッションスイッチOFF時のファン作動イグニ
ッションスイッチコをきってもエンジン冷却水温が所定
値以上になっていると、水温スイッチrがONとなり、
このスイッチ?のON信号とイグニッションスイッチo
 p’y信号トがタイマ10に入り、タイマIOが一定
時間作動してタイマリレーl/を作動させ、第2のファ
ン作動回路が働いて、ファンモータデにバッテリ電圧が
レジスタンス12により一定電圧まで落とされてファン
モータデに印加され、モータデがイグニッションON時
よりも低速回転で駆動し、タイマ10の作動時間が過ぎ
るとモータデは駆動停止する。なお、イグニッションス
イッチλを切ったときにエンジン冷却水温が所定値以下
の場合、水温スイッチ?がOFFしているためタイマ1
0は作動せず、従ってファンモータワも駆動しないこと
は言うまでもない。
■Fan operation when the ignition switch is OFF If the engine coolant temperature remains above the specified value even after the ignition switch is turned off, the water temperature switch r is turned on.
This switch? ON signal and ignition switch o
The p'y signal enters the timer 10, and the timer IO operates for a certain period of time, activating the timer relay l/, and the second fan operating circuit operates, causing the battery voltage of the fan motor to rise to a certain voltage through the resistor 12. The voltage is applied to the fan motor, the motor drives at a lower speed than when the ignition is turned on, and when the timer 10 has elapsed, the motor stops driving. In addition, if the engine coolant temperature is below a predetermined value when the ignition switch λ is turned off, the water temperature switch ? Timer 1 is off because
Needless to say, the fan motor 0 does not operate, and therefore the fan motor tower does not drive.

10発明の効果 以上、この発明によれば、イグニッションスイッチをO
FFにしたときにエンジン冷却水温が所定値以上になっ
ていた場合、ファンモータは通常よりも低速回転するた
め、車外騒音レベルが低減し、環境上好ましくなる。し
かも従来と同様自動車の性能・品質を何ら損なわず安定
的に維持させ妃とができる。
10 Effects of the Invention According to this invention, the ignition switch can be turned to O.
If the engine cooling water temperature is above a predetermined value when the FF is turned on, the fan motor rotates at a lower speed than usual, which reduces the noise level outside the vehicle and is environmentally friendly. Moreover, as in the past, the performance and quality of the automobile can be maintained stably without any loss.

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

図はこの発明の一実施例の回路図である。 /・・・バラf+)、2・・・イグニッションスイッチ
、3・・・イグニッションリレー、7. J’・・・水
温スイッチ、?・・・ファンモータ、lO・・・タイマ
、ll・・・タイマIJ V−1/2・・・レジスタン
ス。
The figure is a circuit diagram of an embodiment of the present invention. /... rose f+), 2... ignition switch, 3... ignition relay, 7. J'...Water temperature switch? ...Fan motor, IO...Timer, ll...Timer IJ V-1/2...Resistance.

Claims (1)

【特許請求の範囲】[Claims] イグニツシヨンスイツチON時にエンジン冷却水温が所
定値以上のときに水温スイツチを閉成してラジエータ冷
却フアンを作動するためのフアンモータを駆動させる第
1のフアン作動回路と、イグニツシヨンスイツチOFF
時にエンジン冷却水温が所定値以上のときに水温スイツ
チを閉成してタイマにより一定時間前記フアンモータを
駆動させる第2のフアン作動回路とを備えた自動車用電
動フアン制御装置において、前記第4のフアン作動回路
中にフアンモータへの印加電圧を下げるレジスタンスを
介装したことを特徴とする自動車における電動フアン制
御装置。
A first fan operation circuit that closes a water temperature switch and drives a fan motor to operate a radiator cooling fan when the engine cooling water temperature is above a predetermined value when the ignition switch is turned on;
and a second fan operating circuit that closes a water temperature switch when the engine cooling water temperature is higher than a predetermined value and drives the fan motor for a certain period of time using a timer. An electric fan control device for an automobile, characterized in that a resistance for lowering the voltage applied to a fan motor is interposed in a fan operating circuit.
JP13964684A 1984-07-04 1984-07-04 Motor fan control device in automobile Pending JPS6119920A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13964684A JPS6119920A (en) 1984-07-04 1984-07-04 Motor fan control device in automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13964684A JPS6119920A (en) 1984-07-04 1984-07-04 Motor fan control device in automobile

Publications (1)

Publication Number Publication Date
JPS6119920A true JPS6119920A (en) 1986-01-28

Family

ID=15250119

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13964684A Pending JPS6119920A (en) 1984-07-04 1984-07-04 Motor fan control device in automobile

Country Status (1)

Country Link
JP (1) JPS6119920A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63154993U (en) * 1987-03-23 1988-10-12
DE4448011B4 (en) * 1993-07-19 2011-09-15 Bayerische Motoren Werke Aktiengesellschaft Cooling system for an internal combustion engine of a motor vehicle with a thermostatic valve containing an electrically heatable expansion element

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63154993U (en) * 1987-03-23 1988-10-12
JPH0523988Y2 (en) * 1987-03-23 1993-06-18
DE4448011B4 (en) * 1993-07-19 2011-09-15 Bayerische Motoren Werke Aktiengesellschaft Cooling system for an internal combustion engine of a motor vehicle with a thermostatic valve containing an electrically heatable expansion element

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