DE3001546A1 - Windscreen wiper speed control for vehicle - uses signal from moisture sensor to adjust operating interval and control on-off switching - Google Patents

Windscreen wiper speed control for vehicle - uses signal from moisture sensor to adjust operating interval and control on-off switching

Info

Publication number
DE3001546A1
DE3001546A1 DE19803001546 DE3001546A DE3001546A1 DE 3001546 A1 DE3001546 A1 DE 3001546A1 DE 19803001546 DE19803001546 DE 19803001546 DE 3001546 A DE3001546 A DE 3001546A DE 3001546 A1 DE3001546 A1 DE 3001546A1
Authority
DE
Germany
Prior art keywords
windshield
control
wipers
windscreen
moisture sensor
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Withdrawn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
DE19803001546
Other languages
German (de)
Inventor
Dietrich 2100 Hamburg Schmidt
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19803001546 priority Critical patent/DE3001546A1/en
Publication of DE3001546A1 publication Critical patent/DE3001546A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
    • B60S1/08—Wipers or the like, e.g. scrapers characterised by the drive electrically driven
    • B60S1/0818—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
    • B60S1/08—Wipers or the like, e.g. scrapers characterised by the drive electrically driven
    • B60S1/0818—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like
    • B60S1/0822—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like characterized by the arrangement or type of detection means
    • B60S1/0859—Other types of detection of rain, e.g. by measuring friction or rain drop impact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
    • B60S1/08—Wipers or the like, e.g. scrapers characterised by the drive electrically driven
    • B60S1/0818—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like
    • B60S1/0822—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like characterized by the arrangement or type of detection means
    • B60S1/0874—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like characterized by the arrangement or type of detection means characterized by the position of the sensor on the windshield

Abstract

The control uses a moisture sensor (11) coupled to a regulator (12) for the drive motor (6) for the windscreen wipers. The regulator (12) is also coupled to a setting element (13) for the operating interval of the wipers and to an ON-OFF switch (14) for the wipers. The wiper blade (5) fits behind a cowling (8) extending adjacent the windscreen surface (21) in one end position with a vertical duct communicating with the channel defined by the cowling (8) and the windscreen (21) containing the moisture sensor. The control allows the windscreen to be kept clear when the rainfall is very heavy and when it is snowing and prevents operation of the wipers when the windscreen is dry.

Description

Die Erfindung betrifft eine Einrichtung zur Regelung derThe invention relates to a device for controlling the

Wischgeschwindigkeit von Scheibenwischern, insbesondere für Kraftfahrzeuge.Wiping speed of windshield wipers, in particular for motor vehicles.

Scheibenwischer dienen dazu, bei Regen oder Schneefall die Windschutzscheibe eines Kraftfahrzeuges klar zu halten, damit die Sicht des Fahrers möglichst wenig eingeschränkt und die Fahrsicherheit gewährleistet wird. Die Wischbewegung für die Wischhebel erfolgt über ein Wischergestänge mittels einer Antriebseinheit, die als Elektromotor, hydraulischer Motor oder pneumatischer Motor ausgebildet sein kann.Windshield wipers are used to open the windshield in the event of rain or snow to keep a motor vehicle clear, so that the driver's view is as little as possible restricted and driving safety is guaranteed. The swiping motion for the The wiper lever takes place via a wiper linkage by means of a drive unit, which is used as a Electric motor, hydraulic motor or pneumatic motor can be formed.

Um bei nur geringem Regenanfall ein Trockenlaufen der Wischer auf der Windschutzscheibe zu verhindern, ist es bekannt, die Wischbewegung der Wischer mittels eines Intervallschalters zu steuern. Hierbei besteht jedoch der Nachteil, daß eine optimale Anpassung an die jeweiligen Witterungsverhältnisse nicht möglich ist. Bei einstellbaren Intervallschaltern wird es als Nachteil empfunden, daß der Fahrer stets den Witterungsbedingungen entsprechende Einstellungen manuell vornehmen muß, wodurch die dem Verkehrsgeschehen zu widmende Aufmerksamkeit beeinträchtigt wird.To keep the wipers running dry when there is only little rain To prevent the windshield, it is known to prevent the wiping motion of the wipers controlled by means of an interval switch. However, there is the disadvantage here that an optimal adaptation to the respective weather conditions is not possible is. With adjustable interval switches, it is felt to be a disadvantage that the Driver always make settings manually according to the weather conditions must, thereby impairing the attention to be paid to the traffic situation will.

Die Aufgabe der Erfindung besteht darin, eine Einrichtung zu schaffen, mittels derer eine automatische Regelung der Wischgeschwindigkeit von Scheibenwischern in Abhängigkeit von den jeweiligen Witterungsbedingungen möglich ist. Erfindungsgemäß erfolgt die Lösung der Aufgabe dadurch, daß das Wischblatt in der einen Endstellung an einem zur Windschutzscheibe des Fahrzeuges offenen Sammelkanal zur Anlage bringbar ist, an dessen unterem Bodenabschnitt ein vertikales, an beiden Endabschnitten offenes Kanalstück ausgebildet ist, in dem ein Feuchtefühler angeordnet ist, der mit einem Regler verbunden ist, der mit einem Stellglied und dem Antriebsmotor für den Scheibenwischanlage verbunden ist.The object of the invention is to create a device by means of which an automatic regulation of the wiping speed of windshield wipers is possible depending on the respective weather conditions. According to the invention the object is achieved in that the wiper blade is in one end position can be brought into contact with a collecting duct open to the windshield of the vehicle is, at the lower bottom section a vertical, open at both end sections Channel piece is formed in which a humidity sensor is arranged with a Controller is connected to an actuator and the drive motor for the windshield wiper system connected is.

Weitere Merkmale der Erfindung sind in den Unteransprüchen beschrieben und werden im folgenden anhand der in den Zeichnungen schematisch dargestellten Einrichtung näher erläutert.Further features of the invention are described in the subclaims and are shown schematically below with reference to the drawings Establishment explained in more detail.

Es zeigt: Fig. 1 eine Ausbildung der erfindungsgemäßen Einrichtung in einer schematischen Ansicht von vorn, Fig. 2 den Meßkanal der Einrichtung nach Fig. 1 in einer Queransicht im Schnitt.It shows: FIG. 1 an embodiment of the device according to the invention in a schematic view from the front, FIG. 2 shows the measuring channel of the device Fig. 1 in a transverse view in section.

Die Einrichtung 1 zur automatischen Regelung der Wischgeschwindigkeit von Scheibenwischern besteht aus einer Scheibenwischeranlage 2, die mit einer Regeleinrichtung 10. der bunden ist (Fig. 1). Die Scheibenwischeranlage 2 weist einen Wischhebel 3 auf, der aus einem Wischarm 4 und einem Wischblatt 5 besteht. Der Wischhebel 3 ist mittels eines Antriebsmotors 6 um ein Gelenk 7 von der horizontalen Endstellung 28 in die horizontale Endstellung 29 schwenkbar. Hierbei überstreicht das Wischblatt 5 die Windschutzscheibe 21.The device 1 for the automatic regulation of the wiping speed of windshield wipers consists of a windshield wiper system 2, which is equipped with a control device 10. which is bound (Fig. 1). The windshield wiper system 2 has a wiper lever 3, which consists of a wiper arm 4 and a wiper blade 5 exists. The wiper lever 3 is by means of a drive motor 6 around a joint 7 from the horizontal End position 28 can be pivoted into the horizontal end position 29. Overwashed here the wiper blade 5 the windshield 21.

Im Bereich der Endstellung 29 ist unterhalb der Windschutzscheibe 21 ein Sammelkanal 8 ausgebildet, der zur Windschutzscheibe 21 offen ist. An dem unteren Bodenabschnitt 22 des Sammelkanals 8 ist ein vertikales, an beiden Endabschnitten offenes Kanalstück 9 ausgebildet. In dem Kanalstück 9 ist ein Feuchtefühler 11 angeordnet. Der untere freie Endabschnitt des Kanalstücks 9 ist als Ablauf 20 ausgebildet.In the end position 29 is below the windshield 21, a collecting channel 8 is formed, which is open to the windshield 21. To the lower bottom portion 22 of the collecting channel 8 is a vertical one, at both end portions open channel piece 9 is formed. A humidity sensor 11 is arranged in the duct section 9. The lower free end section of the channel piece 9 is designed as a drain 20.

Der Feuchtefühler 11 ist mittels einer Steuerleitung 23 mit einem Regler 12 verbunden, der mittels einer Steuerleitung 25 mit dem Antriebsmotor 6 in Wirkverbindung steht.The humidity sensor 11 is by means of a control line 23 with a Controller 12 is connected, which is connected to the drive motor 6 by means of a control line 25 is in operative connection.

Ferner ist ein Stellglied 13 mittels einer Steuerleitung 24 mit dem Regler 12 verbunden. Das Stellglied 13 dient zur Einstellung des Intervallbetriebes der Scheibenwischeranlage 2. Zum An- und Ausschalten der Scheibenwischeranlage 2 dient ein An-/Ausschalter 14, der mittels einer Steuerleitung 26 mit dem Regler 12 verbunden ist.Furthermore, an actuator 13 is by means of a control line 24 with the Controller 12 connected. The actuator 13 is used to set the interval operation the windshield wiper system 2. To switch the windshield wiper system on and off 2 an on / off switch 14 is used, which is connected to the controller by means of a control line 26 12 is connected.

In der EinlaBebene des Sammelkanals 8 ist ein die Motorhaube 16 überragendes Staublech 15 ausgebildet. Durch dieses Staublech 15 ist ein Einlaßkanal 27 gebildet, durch den vor dem Staublech 15 sich anstauende Luft in das Kanalstück 9 eingeführt wird. Auf der dem Einlaßkanal 27 abgewandten Fläche des Staubleches 15 kommt der eine Seitensteg 19 des Wischblattes 5 zur Anlage, wenn sich dieses Wischblatt 5 in der Endstellung 29 befindet. Beim Schwenken des Wischblattes 5 von der Endstellung 28 in die Endstellung 29 wird das von der Windschutzscheibe 21 mittels der an dem Wischblatt 5 ausgebildeten Zunge 17 abgestrichene Wasser in den Sammelkanal 8 eingeführt. Durch die über den Einlaßkanal 27 in das Kanalstück 9 eintretende Stauluft erfolgt eine Verwirbelung des von dem Wischblatt 5 in das Kanalstück 9 eingeführten Wassers. Die hierdurch erfolgende Anreicherung der eintretenden Luft mit Wasser wird mittels des Feuchtefühlers 11 gemessen und als Meßwert dem Regler 12 zugeführt. Durch entsprechende Programmierung des Reglers, die mittels des Stellgliedes 13 vorgenommen werden kann, ist dann der Motor 6 derart betätigbar, daß stets eine solche Schwenkbewegung des Wischhebels 3 bewirkt wird, die ein optimales Abstreichen der auf der Windschutzscheibe 21 befindlichen Regentropfen oder Schneeflocken bewirkt, ohne daß ein Trockenlaufen des Wischblattes 5 eintritt. Beschädigungen der Windschutzscheibe 21, die bei einem Trockenlaufen eines Wischblattes leicht eintreten können, werden somit vermieden.In the inlet plane of the collecting duct 8 there is a protruding engine hood 16 Baffle 15 formed. Through this baffle 15, an inlet channel 27 is formed, by the before Baffle 15 accumulating air in the duct piece 9 is introduced. On the face of the baffle facing away from the inlet channel 27 15 comes the one side web 19 of the wiper blade 5 to the plant when this The wiper blade 5 is in the end position 29. When pivoting the wiper blade 5 from the end position 28 in the end position 29 is that of the windshield 21 by means the tongue 17 formed on the wiper blade 5 enters the collecting channel 8 introduced. By entering the channel piece 9 via the inlet channel 27 Ram air is swirled from the wiper blade 5 into the channel piece 9 imported water. The resulting enrichment of the incoming air with water is measured by means of the humidity sensor 11 and the controller as a measured value 12 supplied. By programming the controller accordingly, using the actuator 13 can be made, then the motor 6 can be operated in such a way that always one such a pivoting movement of the wiper lever 3 is effected that an optimal wiping causes raindrops or snowflakes on the windshield 21, without the wiper blade 5 running dry. Damage to the windshield 21, which can easily occur if a wiper blade runs dry thus avoided.

Es ist auch möglich, statt eines Feuchtefühlers 11 einen Meßwertaufnehmer zu verwenden, der die in vorgegebenen Zeiteinheiten durch das Kanalstück 9 fließende Wassermenge mißt.It is also possible, instead of a humidity sensor 11, to use a measured value transducer to use the flowing through the channel piece 9 in predetermined time units Measure the amount of water.

Dieser Meßwert kann dann ebenfalls dem Regler 12 zur Regelung der Mischgeschwindigkeit des Wischhebels 3 zugeführt werden.This measured value can then also the controller 12 to control the Mixing speed of the wiper lever 3 are supplied.

LeerseiteBlank page

Claims (3)

Titel: Einrichtung zur Regelung der Wischgeschwindigkeit von Scheibenwischern, insbesondere für Kraftfahrzeuge Patentansprüche: 1. Einrichtung zur Regelung der Wischgeschwindigkeit von Scheibenwischern, insbesondere für Kraftfahrzeuge, dadurch gekennzeichnet, daß das Wischblatt (5) in der einen Endstellung an einem zur Windschutzscheibe (21) des Fahrzeugs offenen Sammelkanal (8) zur Anlage bringbar ist, an dessen unterem Bodenabschnitt (22) ein vertikal an beiden Endabschnitten offenes Kanalstück (9) ausgebildet ist, in dem ein Feuchtefühler (11) angeordnet ist, der mit einem Regler (12) verbunden ist, der mit einem Stellglied (13) und dem Antriebsmotor (6) für die Scheibenwischanlage (2) verbunden ist.Title: Device for regulating the wiping speed of windshield wipers, in particular for motor vehicles claims: 1. Device for regulating the Wiping speed of windshield wipers, in particular for motor vehicles, thereby characterized in that the wiper blade (5) in one end position on one to the windshield (21) of the vehicle's open collecting duct (8) can be brought to bear on its lower Bottom section (22) a duct piece (9) open vertically at both end sections is designed, in which a humidity sensor (11) is arranged, which is connected to a controller (12) is connected to an actuator (13) and the drive motor (6) for the windshield wiper system (2) is connected. 2. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Regler (12) mit einem An-/Ausschalter (14) verbunden ist.2. Device according to claim 1, characterized in that the controller (12) is connected to an on / off switch (14). 3. Einrichtung nach Anspruch 1 und 2, dadurch gekennzeichnet, daß in der Einlaßebene des Sammelkanals (8) ein die Motorhaube (16) überragendes Staublech (15) angeordnet ist, an dem der eine Seitensteg (19) des Wischblattes (5) in der einen Endstellung anliegt und durch das ein in den Sammelkanal (8) mündender Einlaßkanal (27) für Stauluft ausgebildet ist.3. Device according to claim 1 and 2, characterized in that in the inlet plane of the collecting duct (8) a baffle protruding beyond the engine hood (16) (15) is arranged on which one side web (19) of the wiper blade (5) in the an end position is applied and through which an inlet channel opening into the collecting channel (8) (27) is designed for ram air.
DE19803001546 1980-01-17 1980-01-17 Windscreen wiper speed control for vehicle - uses signal from moisture sensor to adjust operating interval and control on-off switching Withdrawn DE3001546A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19803001546 DE3001546A1 (en) 1980-01-17 1980-01-17 Windscreen wiper speed control for vehicle - uses signal from moisture sensor to adjust operating interval and control on-off switching

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803001546 DE3001546A1 (en) 1980-01-17 1980-01-17 Windscreen wiper speed control for vehicle - uses signal from moisture sensor to adjust operating interval and control on-off switching

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DE3001546A1 true DE3001546A1 (en) 1981-09-03

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4916374A (en) * 1989-02-28 1990-04-10 Donnelly Corporation Continuously adaptive moisture sensor system for wiper control
US4956591A (en) * 1989-02-28 1990-09-11 Donnelly Corporation Control for a moisture sensor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NICHTS ERMITTELT *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4916374A (en) * 1989-02-28 1990-04-10 Donnelly Corporation Continuously adaptive moisture sensor system for wiper control
US4956591A (en) * 1989-02-28 1990-09-11 Donnelly Corporation Control for a moisture sensor

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