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DE2645391A1 - Automatic control for windscreen wipers - has electrostatic sensor pairs on windscreen to detect presence of water - Google Patents

Automatic control for windscreen wipers - has electrostatic sensor pairs on windscreen to detect presence of water

Info

Publication number
DE2645391A1
DE2645391A1 DE19762645391 DE2645391A DE2645391A1 DE 2645391 A1 DE2645391 A1 DE 2645391A1 DE 19762645391 DE19762645391 DE 19762645391 DE 2645391 A DE2645391 A DE 2645391A DE 2645391 A1 DE2645391 A1 DE 2645391A1
Authority
DE
Germany
Prior art keywords
windscreen
electrical
water
automatic control
electrostatic 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Withdrawn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
DE19762645391
Other languages
German (de)
Inventor
Karl-Heinz 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 DE19762645391 priority Critical patent/DE2645391A1/en
Publication of DE2645391A1 publication Critical patent/DE2645391A1/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Withdrawn legal-status Critical Current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
    • B60S1/0825—Capacitive rain sensor

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

The automatic windscreen wiper control has pairs of di-electric, or semi-conductor sensors spaced over the windscreen to detect the incidence of water or ice and snow particles. The sensors operate on the change in electrostatic charge from the rain or snow. Interference from radio waves etc. are eliminated by having pairs of sensors with a differential control between them.

Description

Elektronische Registrierung des Aufpralls fester oder flfissigerElectronic registration of the impact more firmly or more fluidly

Materie auf elektrisch nicht- oder halbleitenden Flächen0 Resonders geeignet zur selbsttätigen Steuerung von Kraftfaèrzeug-Scheibenwischanlagen.Matter on electrically non- or semiconducting surfaces0 Resonders suitable for the automatic control of motor vehicle windshield wiper systems.

- Zusatz zur Patentanmeldung B60S 1-08, Aktenzeichen P26 30 470.1-Die in der genannten Hauptanmeldung offenbarte Erfindung das duroh Regentropfenaufprall verursachte Sprungverhalten eines elektrisohen Gleich- oder Wechselfeldes zu erfassen, bendtigt zur Felderz@ugung einen zusätzlichen Schaltaufwand.- Addition to patent application B60S 1-08, file number P26 30 470.1-Die In the cited main application, the invention disclosed the duroh raindrop impact to detect the jump behavior caused by an electrical direct or alternating field, Requires additional switching effort to generate the field.

Die ausnutzbare Empfindlichkeit solcher Anlagen kann durch Einstrahlungen fremder Störquellen - wie Rundfunkiender oder Strosrersorgungsleitungen - eingeschränkt werden.The exploitable sensitivity of such systems can be caused by radiation external sources of interference - such as broadcasters or power supply lines - restricted will.

Gemäß dieser Zusatzanmeldung kann auf den zusätzlichen Scheltungéaufwand zur Felderzengung @erzichtet worden, falls der natürlich ablaufende, statisch-elektrische Ladungsausgleich - der u.a. beim Aufprall fester oder fliissiger Materie auf nicht- oder halbleitenden Flächen abläuft - verrittels einer geeigneten elektrischen Fühleranowdnung erfaßt wird. Eine geeignet elcktrisch-kapazitive, bzw.According to this additional registration, the additional Scheltungé effort for field generation @ been established, if the naturally occurring, static-electrical Charge equalization - which, among other things, occurs when solid or liquid matter collides with non- or semiconducting surfaces - by means of a suitable electrical sensor design is detected. A suitable electrical-capacitive or

elektrisch-gelvanische Fühleronordnung besteht z.B. aus elektrischen Leiterbahnen, welche hinter - oder innerhalb - der nichtleitenden Fläche plan aufgebracht - oder eingebracht - sind, Gemäß dieser Zusatzarmeldung werden die Einstrahlungen fremder Störquellen dadurch eliminiert, daß durch Verdopplung der Fühleranordnung zwei getrennte, gleichwertige Einzelsignale erzeugt werden, die sich enschließend - bekannterweise - durch Differenzbildung gegenseitig auslöschen. Die beiden, durch Tropfenaufprall verursachten, Nutzsignale weisen dagegen - in den meisten Fällen - ungleichwertige Spannungsbeträge auf und stehen nach Differenzbildung als Registrier- oder Steuersignale- z. B. zur selbsttätigen Steuerung von Kfz-Scheibenwisohanlagen - zur Verfügung.electrical-gelvanic sensor arrangement consists, for example, of electrical Conductor tracks, which are applied flat behind - or within - the non-conductive surface - or brought in -, According to this additional alarm, the irradiations foreign sources of interference are eliminated by doubling the sensor arrangement two separate, equivalent individual signals are generated which are mutually exclusive - as is known - cancel each other out by forming the difference. The two, through Drop impact caused, useful signals, however, show - in most cases - unequal voltage amounts and are available as registrations after the difference is formed or control signals - e.g. B. for the automatic control of windshield windshield systems - to disposal.

Claims (2)

P e t e n t a n s p r ü c h e : 1. Vorfehren zur elektrondschen Rogistrisrung des Aufpralls f@ster oder flüssiger Materie auf elektriech nioht- oder halbl@itehd@s Flächen - insbesondere zur solbsttätigen Steuer@eg vem Kreftf@@rzeng-Scheibenwischunlogon - d a d u r c h g e k e n n z e i c h n e t, duß der dakei ablanfonde, statisch-elektrische Ladungsausgleich vermittels zins geeignoten elektrisch-kapazitiven oder elektrisch-galvanischen Fühlers erfaßt wird.P e t e n t a n s p r ü c h e: 1. Demonstration of the electronic rogistration of the impact of solid or liquid matter on electrical nioht- or half @ itehd @ s Areas - especially for self-employed taxation - d a d u r c h e k e n n n z e i c h n e t, duss der dakei ablanfonde, static-electrical Charge equalization by means of suitable electrical-capacitive or electrical-galvanic interest rates Sensor is detected. 2. Schaltungsonordnung mach Anspruch 1 der Nauptanm@ldung, bzw. nach Anspruch 1 der Zusatsanmeldung, d a d u r c h g e k e n n z e i c h n e t, daß zur Eliminiorung von Störoinstrahlungen zwei getrennte, gleichwertige Störsignole durch Verdopplung den Fühleranordnung gowon@en werien, die dann in bekanuter Weise durch Differenbildung gelöscht werden. 2. Circuit arrangement make claim 1 of the Nauptanm @ ldung, or after Claim 1 of the additional registration, d a d u r c h g e n n n z e i c h n e t that for Elimination of interfering radiation through two separate, equivalent interfering signals Duplication of the sensor arrangement gowon @ en werien, which is then carried out in a well-known manner Differences can be deleted.
DE19762645391 1976-10-08 1976-10-08 Automatic control for windscreen wipers - has electrostatic sensor pairs on windscreen to detect presence of water Withdrawn DE2645391A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19762645391 DE2645391A1 (en) 1976-10-08 1976-10-08 Automatic control for windscreen wipers - has electrostatic sensor pairs on windscreen to detect presence of water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762645391 DE2645391A1 (en) 1976-10-08 1976-10-08 Automatic control for windscreen wipers - has electrostatic sensor pairs on windscreen to detect presence of water

Publications (1)

Publication Number Publication Date
DE2645391A1 true DE2645391A1 (en) 1978-04-13

Family

ID=5989959

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19762645391 Withdrawn DE2645391A1 (en) 1976-10-08 1976-10-08 Automatic control for windscreen wipers - has electrostatic sensor pairs on windscreen to detect presence of water

Country Status (1)

Country Link
DE (1) DE2645391A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0115822A2 (en) * 1983-01-28 1984-08-15 Nissan Motor Co., Ltd. Vibration noise suppressive rain sensor for a wiper control system
EP0117435A2 (en) * 1983-01-28 1984-09-05 Nissan Motor Co., Ltd. Rain sensor in an automatic wiper drive control system for an automotive vehicle
EP0102622A3 (en) * 1982-09-02 1987-02-04 Nissan Motor Co., Ltd. Wiper speed control system for an automotive windshield wiper
DE3803138A1 (en) * 1988-02-03 1989-08-17 Hella Kg Hueck & Co Device for controlling a window/headlamp wiper of vehicles, in particular motor vehicles
US4987354A (en) * 1987-07-08 1991-01-22 Roberts Bosch Gmbh Device for rain-induced switching on and off of an electric windscreen wiper motor
DE4141348C3 (en) * 1991-12-14 1999-04-29 Kostal Leopold Gmbh & Co Kg Device for controlling a windshield wiper system

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0102622A3 (en) * 1982-09-02 1987-02-04 Nissan Motor Co., Ltd. Wiper speed control system for an automotive windshield wiper
EP0115822A2 (en) * 1983-01-28 1984-08-15 Nissan Motor Co., Ltd. Vibration noise suppressive rain sensor for a wiper control system
EP0117435A2 (en) * 1983-01-28 1984-09-05 Nissan Motor Co., Ltd. Rain sensor in an automatic wiper drive control system for an automotive vehicle
EP0115822A3 (en) * 1983-01-28 1987-01-28 Nissan Motor Co., Ltd. Vibration noise suppressive rain sensor for a wiper control system
EP0117435A3 (en) * 1983-01-28 1987-02-04 Nissan Motor Co., Ltd. Rain sensor in an automatic wiper drive control system for an automotive vehicle
US4987354A (en) * 1987-07-08 1991-01-22 Roberts Bosch Gmbh Device for rain-induced switching on and off of an electric windscreen wiper motor
DE3803138A1 (en) * 1988-02-03 1989-08-17 Hella Kg Hueck & Co Device for controlling a window/headlamp wiper of vehicles, in particular motor vehicles
DE4141348C3 (en) * 1991-12-14 1999-04-29 Kostal Leopold Gmbh & Co Kg Device for controlling a windshield wiper system
DE4217391C3 (en) * 1991-12-14 2001-05-10 Kostal Leopold Gmbh & Co Kg Method for operating a device for controlling a windshield wiper system

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Legal Events

Date Code Title Description
8141 Disposal/no request for examination