DE2439590A1 - Control sensor for automatic windscreen wiper - with pointed electrodes having different spacings for different conditions - Google Patents

Control sensor for automatic windscreen wiper - with pointed electrodes having different spacings for different conditions

Info

Publication number
DE2439590A1
DE2439590A1 DE19742439590 DE2439590A DE2439590A1 DE 2439590 A1 DE2439590 A1 DE 2439590A1 DE 19742439590 DE19742439590 DE 19742439590 DE 2439590 A DE2439590 A DE 2439590A DE 2439590 A1 DE2439590 A1 DE 2439590A1
Authority
DE
Germany
Prior art keywords
electrodes
windscreen wiper
different
control sensor
automatic windscreen
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Withdrawn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
DE19742439590
Other languages
German (de)
Inventor
Guenter Grassmann
Original Assignee
Guenter Grassmann
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 Guenter Grassmann filed Critical Guenter Grassmann
Priority to DE19742439590 priority Critical patent/DE2439590A1/en
Priority claimed from IT5057475A external-priority patent/IT1040981B/en
Publication of DE2439590A1 publication Critical patent/DE2439590A1/en
Application status is Withdrawn legal-status Critical

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
    • G01N27/02Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means by investigating the impedance of the material
    • G01N27/04Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means by investigating the impedance of the material by investigating resistance
    • G01N27/048Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means by investigating the impedance of the material by investigating resistance for determining moisture content of the material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q9/00Arrangements or adaptations of signal devices not provided for in one of the preceding main groups, e.g. haptic signalling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60SSERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00Cleaning of vehicles
    • B60S1/02Cleaning windscreens, windows or optical devices
    • B60S1/04Wipers or the like, e.g. scrapers
    • B60S1/06Wipers or the like, e.g. scrapers characterised by the drive
    • B60S1/08Wipers or the like, e.g. scrapers characterised by the drive electrically driven
    • B60S1/0818Wipers 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
    • B60S1/0822Wipers 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60SSERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00Cleaning of vehicles
    • B60S1/02Cleaning windscreens, windows or optical devices
    • B60S1/04Wipers or the like, e.g. scrapers
    • B60S1/06Wipers or the like, e.g. scrapers characterised by the drive
    • B60S1/08Wipers or the like, e.g. scrapers characterised by the drive electrically driven
    • B60S1/0818Wipers 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
    • B60S1/0822Wipers 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
    • B60S1/0851Resistive rain sensor

Abstract

The sensor for operating the automatic windscreen wiper has upper and lower electrodes arranged with specially shaped points like combs. The points are in contact at their tips so that a reference signal passes between them at all times. The space between the electrodes, with special sloping edges to collect water droplets, has its resistance altered by rain. The width of the electrodes is tapered to help the flow of water droplets. Several sets of electrodes are fitted, with a selector switch to connect one of the electrodes to the control. One of the electrodes has wider spacing for Winter use, when snow and ice are expected.
DE19742439590 1974-08-17 1974-08-17 Control sensor for automatic windscreen wiper - with pointed electrodes having different spacings for different conditions Withdrawn DE2439590A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19742439590 DE2439590A1 (en) 1974-08-17 1974-08-17 Control sensor for automatic windscreen wiper - with pointed electrodes having different spacings for different conditions

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE19742439590 DE2439590A1 (en) 1974-08-17 1974-08-17 Control sensor for automatic windscreen wiper - with pointed electrodes having different spacings for different conditions
IT5057475A IT1040981B (en) 1974-08-17 1975-07-17 A sensor device for controlling the motor of motor vehicle windscreen
GB3226675A GB1513669A (en) 1974-08-17 1975-08-01 Precipitation sensors
FR7524660A FR2281857B1 (en) 1974-08-17 1975-08-07
US05/605,176 US4010383A (en) 1974-08-17 1975-08-15 Precipitation detector for arrangements which control windshield wipers and/or washers, and the like
JP9955975A JPS5144980A (en) 1974-08-17 1975-08-18 Madogarasuwaipadendokiseigyoyosensa

Publications (1)

Publication Number Publication Date
DE2439590A1 true DE2439590A1 (en) 1976-02-26

Family

ID=5923486

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19742439590 Withdrawn DE2439590A1 (en) 1974-08-17 1974-08-17 Control sensor for automatic windscreen wiper - with pointed electrodes having different spacings for different conditions

Country Status (1)

Country Link
DE (1) DE2439590A1 (en)

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Legal Events

Date Code Title Description
8141 Disposal/no request for examination