JPH06239204A - Wiper device for vehicle - Google Patents

Wiper device for vehicle

Info

Publication number
JPH06239204A
JPH06239204A JP5047410A JP4741093A JPH06239204A JP H06239204 A JPH06239204 A JP H06239204A JP 5047410 A JP5047410 A JP 5047410A JP 4741093 A JP4741093 A JP 4741093A JP H06239204 A JPH06239204 A JP H06239204A
Authority
JP
Japan
Prior art keywords
wiper
windshield
heating
vehicle
rainfall
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.)
Withdrawn
Application number
JP5047410A
Other languages
Japanese (ja)
Inventor
Akira Takei
昭 武井
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 JP5047410A priority Critical patent/JPH06239204A/en
Publication of JPH06239204A publication Critical patent/JPH06239204A/en
Withdrawn legal-status Critical Current

Links

Abstract

PURPOSE:To restrain generation of white film phenomenon and provide clear visibility outside a vehicle by actuating a heating means by means of a heating control means when a prescribed rainfall is detected based on the signal from a rainfall detecting means at driving a wiper. CONSTITUTION:A controller 2 is provided, and a wiper drive part 3 is controlled based on the signal from a viper switch 1. Further a rainfall sensor 4 and an illuminance sensor 5 are connected to the input side of the controller 2, a defroster 6 to blow hot air against a windshield is connected to the output side, and hence control against environment is performed. Namely when reading of the rainfall sensor shows to be apt to generate white film phenomenon and the wiper is driven, environment illuminance outside a vehicle is checked by the signal from the illuminance sensor 5. When the illuminance is under a prescribed value in response to night to cause difficult visibility due to white film phenomenon, a drive signal is sent to the defroster 6. In this case, a heating control means is constituted of the rainfall sensor 4 and the illuminance sensor 5.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】この発明は、ウインドシールドに
撥水ガラスを用いた車両におけるワイパー装置に関す
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiper device for a vehicle using a water repellent glass for a windshield.

【0002】[0002]

【従来の技術】車両には現今必須の装備としてワイパー
装置が搭載され、雨天の際、フロントウインドウなどの
ウインドシールド上の雨滴を払拭するようにして、車両
前方の道路状況の視認性を確保できるようにしている。
そして、車両前方のみならず、後方視認についても同様
の要請があるためリアウインドウ用のワイパー装置も普
及しつつある。そして近時は、ウインドシールドに、ワ
イパー装置の負担を軽減する目的で表面に撥水コーティ
ング処理を施したいわゆる撥水ガラスを用いて、水滴の
濡れ度合を低くした車両が提供されつつある。
2. Description of the Related Art A wiper device is currently installed as an indispensable device in a vehicle, and in rainy weather, raindrops on a windshield such as a windshield can be wiped off to ensure visibility of road conditions in front of the vehicle. I am trying.
Further, not only the front side of the vehicle but also the rear side of the vehicle has the same demand, and therefore, the wiper device for the rear window is becoming popular. Recently, a vehicle is being provided in which the degree of wetting of water drops is reduced by using a so-called water-repellent glass whose surface is subjected to a water-repellent coating treatment for the purpose of reducing the load on the wiper device.

【0003】[0003]

【発明が解決しようとする課題】しかしながら、このよ
うな撥水ガラスを用いた車両でワイパーを作動させる
と、ウインドシールド上にワイパー払拭のあと非常に小
さな水滴の集まりが発生し、白膜状態となる。この現象
は、とくに雨量が比較的に少ないときに発生しやすい。
この微少水滴の集まりは時間経過とともに蒸発して消滅
するものではあるが、一時的に車外状況の視認が困難と
なる状況を引き起こすという問題がある。
However, when the wiper is operated in a vehicle using such a water-repellent glass, a very small collection of water droplets occurs on the windshield after the wiper is wiped, and a white film state is generated. Become. This phenomenon is likely to occur especially when the amount of rainfall is relatively small.
Although the collection of the minute water droplets evaporates and disappears with the passage of time, there is a problem that it temporarily causes a situation where it is difficult to visually recognize the situation outside the vehicle.

【0004】そして夜間走行中の場合には、外部の照明
などによりドライバの目にはこの白膜の程度がとくに強
く感じられるとともに、日中より相対的に気温が低いた
め微少水滴の消滅にかかる時間も長く、上記の弊害が大
きい。したがってこの発明は、このような従来の問題点
に着目し、白膜現象が発生しやすい状況になったときに
もその発生を抑さえ、明瞭な車外視認性が確保される車
両用ワイパー装置を提供することを目的とする。
When driving at night, the degree of this white film is particularly strongly felt by the driver's eyes due to external lighting and the like, and the temperature is relatively lower than during the daytime, which causes the disappearance of minute water droplets. It takes a long time and the above-mentioned problems are large. Therefore, the present invention focuses on such a conventional problem, and suppresses the occurrence of the white film phenomenon even in a situation in which the white film phenomenon is likely to occur, and provides a vehicle wiper device capable of ensuring a clear exterior visibility. The purpose is to provide.

【0005】[0005]

【課題を解決するための手段】このため、請求項1に記
載の発明は、表面に撥水コーティング処理を施したガラ
スをウィンドシールドとした車両におけるワイパー装置
であって、ワイパースイッチと、このワイパースイッチ
からの信号に基づいてワイパーを駆動するワイパー駆動
手段と、雨量を検出する雨量検出手段と、ウィンドシー
ルドを加温する加温手段と、ワイパーの駆動時、雨量検
出手段からの信号に基づき前記の加温手段を作動させる
加温制御手段とを備え、所定範囲の雨量が検出されたと
きにウィンドシールドを加温するように構成されたもの
とした。
Therefore, the invention according to claim 1 is a wiper device for a vehicle in which a windshield is made of glass whose surface is subjected to a water-repellent coating treatment, and a wiper switch and the wiper are provided. The wiper driving means for driving the wiper based on the signal from the switch, the rain amount detecting means for detecting the rainfall amount, the heating means for heating the windshield, and the wiper driving means based on the signal from the rain amount detecting means when the wiper is driven. And a heating control means for operating the heating means, and is configured to heat the windshield when the amount of rainfall in a predetermined range is detected.

【0006】また、請求項2に記載の発明は、上記に加
えさらに環境照度を検出する照度検出手段を備えて、環
境照度が所定値以下で所定範囲の雨量が検出されたとき
にウィンドシールドを加温するように構成されたものと
した。
In addition to the above, the invention according to claim 2 further comprises an illuminance detecting means for detecting the environmental illuminance, and when the environmental illuminance is below a predetermined value and a rainfall in a predetermined range is detected, the windshield is installed. It was configured to be heated.

【0007】[0007]

【作用】請求項1の発明では、ワイパーの駆動時、雨量
検出手段で所定範囲の雨量が検出されたときにウィンド
シールドが加温されるから、上記所定範囲の雨量状態で
ウインドシールドの撥水ガラスに発生しやすい白膜現象
が防止される。請求項2の発明ではウィンドシールドが
加温される環境条件として所定値以下の照度が付加され
ているから、例えば夜間など白膜現象がとくに悪影響を
及ぼす状況時に加温が限定され、エネルギー消費が低減
される。
According to the first aspect of the present invention, when the wiper is driven, the windshield is heated when the rain amount detecting means detects the rain amount within the predetermined range. Therefore, the water repellency of the windshield is maintained under the rain amount within the predetermined range. The white film phenomenon that tends to occur on glass is prevented. In the invention of claim 2, since the illuminance below the predetermined value is added as the environmental condition for heating the windshield, the heating is limited when the white film phenomenon has a particularly bad influence, for example, at night, and energy consumption is reduced. Will be reduced.

【0008】[0008]

【実施例】図1は、この発明の実施例を示すブロック図
である。 ワイパースイッチ1からの入力を受けるコン
トローラ2が設けられ、ワイパースイッチ1からの信号
に基づいてワイパー駆動部3が制御される。ここでは、
コントローラ2およびワイパー駆動部3が発明のワイパ
ー駆動手段を構成している。コントローラ2の入力側に
は、さらに雨量センサ4および照度センサ5が接続され
ている。そして、コントローラの2出力側にはウィンド
シールドに温風を吹き付けるよう配設されたデフロスタ
6が接続されて、ワイパー作動時、デフロスタ6が走行
環境に応じて環境対応制御される。
1 is a block diagram showing an embodiment of the present invention. A controller 2 that receives an input from the wiper switch 1 is provided, and the wiper drive unit 3 is controlled based on a signal from the wiper switch 1. here,
The controller 2 and the wiper drive unit 3 constitute the wiper drive means of the invention. A rain sensor 4 and an illuminance sensor 5 are further connected to the input side of the controller 2. A defroster 6 arranged to blow warm air to the windshield is connected to the two outputs of the controller, and the defroster 6 is environmentally controlled according to the traveling environment when the wiper is activated.

【0009】コントローラ2は図2に示されるフローに
従って、ワイパースイッチ1および各センサからの信号
に基づき、デフロスタ6の環境対応制御を行なう。すな
わち、まずステップ101において、雨量センサ4から
の信号が読み込まれ、雨量が予め測定してある白膜現象
を発生させやすい所定範囲にあるかどうかがチェックさ
れる。ここで雨量が上記所定範囲にある場合にはステッ
プ102に進んで、ワイパーが作動中であるか否かがチ
ェックされる。
According to the flow shown in FIG. 2, the controller 2 controls the environment of the defroster 6 based on the signals from the wiper switch 1 and each sensor. That is, first, in step 101, the signal from the rainfall sensor 4 is read and it is checked whether or not the rainfall falls within a predetermined range in which the white film phenomenon that is measured in advance is likely to occur. If the amount of rainfall is within the predetermined range, the routine proceeds to step 102, where it is checked whether or not the wiper is operating.

【0010】そして、ワイパーが作動中であると判断さ
れたときには、次のステップ103に進み、照度センサ
5からの信号が読み込まれ、車外の環境照度がチェック
される。ここでは、白膜現象で視認困難を招く夜間に対
応する所定値以下の照度であるかどうかが判断される。
照度が夜間を示す値であれば、ステップ104に進んで
デフロスタ6へ駆動信号が送出される。ステップ101
〜103におけるチェック結果が否定であるときはそれ
ぞれ次のフローサイクルに移る。ステップ101〜10
4が発明の加温制御手段を構成している。
When it is determined that the wiper is in operation, the process proceeds to the next step 103, the signal from the illuminance sensor 5 is read, and the ambient illuminance outside the vehicle is checked. Here, it is determined whether or not the illuminance is equal to or less than a predetermined value corresponding to nighttime when the white film phenomenon causes visibility to be difficult.
If the illuminance is a value indicating nighttime, the process proceeds to step 104 and the drive signal is sent to the defroster 6. Step 101
When the check result in No. 103 is negative, the process goes to the next flow cycle. Steps 101-10
Reference numeral 4 constitutes the heating control means of the invention.

【0011】本実施例はこのように構成され、小規模の
雨量で白膜現象が発生しやすい状況下でワイパーを作動
させているとき、デフロスタが作動されて、ウインドシ
ールドが加温されるので、白膜現象の発生が防止され
る。この際、デフロスタの作動を夜間の場合に限定する
ようにしているから、電源のエネルギー消費も少なくて
済むという利点を有する。なお、上記実施例において
は、ウインドシールドを加温する手段としてデフロスタ
を用いているが、これに限定されることなく、例えばウ
インドシールドに貼り付けあるいは埋め込まれた電熱線
ヒータを用いることもできる。
In this embodiment, the defroster is operated and the windshield is heated when the wiper is operated under the condition that the white film phenomenon is likely to occur in a small amount of rainfall. The occurrence of the white film phenomenon is prevented. At this time, since the operation of the defroster is limited to the case of night, there is an advantage that the energy consumption of the power source can be small. In the above embodiment, the defroster is used as a means for heating the windshield, but the invention is not limited to this, and a heating wire heater attached to or embedded in the windshield may be used.

【0012】[0012]

【発明の効果】以上のとおり、本発明は、雨量を検出す
る雨量検出手段と、ウィンドシールドを加温する加温手
段を備え、加温制御手段によりワイパーの駆動時、所定
範囲の雨量が検出されたときにウィンドシールドを加温
するようにしたから、ウインドシールドに撥水ガラスを
用いた車両において発生しやすい白膜現象が防止される
という効果を有する。そしてさらに環境照度を検出する
照度検出手段を備えて、環境照度が所定値以下で所定範
囲の雨量が検出されたときに上記のようにウィンドシー
ルドを加温するように構成したときには、加温手段の作
動時間が限定され電源のエネルギー消費も少ないという
利点がある。
As described above, the present invention comprises the rainfall amount detecting means for detecting the rainfall amount and the heating means for heating the windshield, and the heating control means detects the rainfall amount in the predetermined range when the wiper is driven. Since the windshield is heated when it is turned on, it has an effect of preventing the white film phenomenon that is likely to occur in a vehicle using water repellent glass for the windshield. Further, when the windshield is configured to be heated as described above when the environmental illuminance is further detected and the rainfall in the predetermined range is detected when the environmental illuminance is equal to or less than the predetermined value, the warming means is provided. Has the advantage that the operating time is limited and the energy consumption of the power supply is low.

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

【図1】本発明の実施例を示すブロック図である。FIG. 1 is a block diagram showing an embodiment of the present invention.

【図2】コントローラにおける制御の流れを示すフロー
チャートである。
FIG. 2 is a flowchart showing a control flow in a controller.

【符号の説明】[Explanation of symbols]

1 ワイパースイッチ 2 コントローラ 3 ワイパー駆動部 4 雨量センサ 5 照度センサ 6 デフロスタ 1 Wiper switch 2 Controller 3 Wiper drive 4 Rain sensor 5 Illumination sensor 6 Defroster

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 表面に撥水コーティング処理を施したガ
ラスをウィンドシールドとした車両におけるワイパー装
置であって、ワイパースイッチと、該ワイパースイッチ
からの信号に基づいてワイパーを駆動するワイパー駆動
手段と、雨量を検出する雨量検出手段と、前記ウィンド
シールドを加温する加温手段と、前記ワイパーの駆動
時、前記雨量検出手段からの信号に基づき前記加温手段
を作動させる加温制御手段とを備え、所定範囲の雨量が
検出されたときに前記ウィンドシールドを加温するよう
に構成されたことを特徴とする車両用ワイパー装置。
1. A wiper device for a vehicle having a windshield made of glass having a water-repellent coating on its surface, comprising: a wiper switch; and a wiper drive means for driving the wiper based on a signal from the wiper switch. A rain amount detecting means for detecting a rain amount, a heating means for heating the windshield, and a heating control means for activating the heating means based on a signal from the rain amount detecting means when the wiper is driven. A windshield wiper device for a vehicle, wherein the windshield is heated when a predetermined amount of rainfall is detected.
【請求項2】 表面に撥水コーティング処理を施したガ
ラスをウィンドシールドとした車両におけるワイパー装
置であって、ワイパースイッチと、該ワイパースイッチ
からの信号に基づいてワイパーを駆動するワイパー駆動
手段と、雨量を検出する雨量検出手段と、環境照度を検
出する照度検出手段と、前記ウィンドシールドを加温す
る加温手段と、前記ワイパーの駆動時、前記雨量検出手
段および照度検出手段からの信号に基づき前記加温手段
を作動させる加温制御手段とを備え、環境照度が所定値
以下で所定範囲の雨量が検出されたときに前記ウィンド
シールドを加温するように構成されたことを特徴とする
車両用ワイパー装置。
2. A wiper device for a vehicle having a windshield made of glass having a water-repellent coating on its surface, comprising: a wiper switch; and a wiper drive means for driving the wiper based on a signal from the wiper switch. Rain amount detecting means for detecting the amount of rainfall, illuminance detecting means for detecting environmental illuminance, heating means for heating the windshield, and when driving the wiper, based on signals from the rain amount detecting means and the illuminance detecting means. A vehicle comprising: a heating control unit that operates the heating unit, and is configured to heat the windshield when the environmental illuminance is equal to or less than a predetermined value and a rainfall amount in a predetermined range is detected. Wiper device for
【請求項3】 前記加温手段が、前記ウィンドシールド
に温風を吹き付けるデフロスタであることを特徴とする
請求項1または2記載の車両用ワイパー装置。
3. The vehicle wiper device according to claim 1, wherein the heating means is a defroster that blows warm air to the windshield.
【請求項4】 前記加温手段が、前記ウインドシールド
に付設された電熱線ヒータであることを特徴とする請求
項1または2記載の車両用ワイパー装置。
4. The vehicle wiper device according to claim 1, wherein the heating means is a heating wire heater attached to the windshield.
JP5047410A 1993-02-12 1993-02-12 Wiper device for vehicle Withdrawn JPH06239204A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5047410A JPH06239204A (en) 1993-02-12 1993-02-12 Wiper device for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5047410A JPH06239204A (en) 1993-02-12 1993-02-12 Wiper device for vehicle

Publications (1)

Publication Number Publication Date
JPH06239204A true JPH06239204A (en) 1994-08-30

Family

ID=12774364

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5047410A Withdrawn JPH06239204A (en) 1993-02-12 1993-02-12 Wiper device for vehicle

Country Status (1)

Country Link
JP (1) JPH06239204A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0881861A1 (en) * 1997-03-06 1998-12-02 Daimler-Benz Aktiengesellschaft Method and device for controlling a heating element in vehicle window
KR100913013B1 (en) * 2003-02-17 2009-08-20 한라공조주식회사 Method for defrosting windows of vehicle using fatc system
JP2010534588A (en) * 2007-07-26 2010-11-11 アーデーツエー・オートモテイブ・デイスタンス・コントロール・システムズ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング Viewing window for optical sensor system and / or identification system in vehicle
JP2019001664A (en) * 2017-06-09 2019-01-10 日本板硝子株式会社 Glass laminate

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0881861A1 (en) * 1997-03-06 1998-12-02 Daimler-Benz Aktiengesellschaft Method and device for controlling a heating element in vehicle window
KR100913013B1 (en) * 2003-02-17 2009-08-20 한라공조주식회사 Method for defrosting windows of vehicle using fatc system
JP2010534588A (en) * 2007-07-26 2010-11-11 アーデーツエー・オートモテイブ・デイスタンス・コントロール・システムズ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング Viewing window for optical sensor system and / or identification system in vehicle
JP2019001664A (en) * 2017-06-09 2019-01-10 日本板硝子株式会社 Glass laminate

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