GB1250280A - - Google Patents

Info

Publication number
GB1250280A
GB1250280A GB1250280DA GB1250280A GB 1250280 A GB1250280 A GB 1250280A GB 1250280D A GB1250280D A GB 1250280DA GB 1250280 A GB1250280 A GB 1250280A
Authority
GB
United Kingdom
Prior art keywords
moisture detector
moisture
motor
sept
energized
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.)
Expired
Application number
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
Priority claimed from JP43068580A external-priority patent/JPS4911906B1/ja
Priority claimed from JP43069259A external-priority patent/JPS4911907B1/ja
Application filed filed Critical
Publication of GB1250280A publication Critical patent/GB1250280A/en
Expired 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
    • 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
    • B60S1/0851—Resistive rain sensor

Landscapes

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

Abstract

1,250,280. Control of motors. NIPPON DENSO K.K. 22 Sept., 1969 [21 Sept., 1968; 25 Sept., 1968], No. 46513/69. Heading H2J. [Also in Divisions A4 and G1] A windscreen wiping system comprises a moisture detector 21 connected via an amplifier 15, 16 to a switching relay 12, 13 controlling a drive motor 10 for the wiper or wipers, whereby the motor 10 is energized when the windscreen is wet, and a time delay device 17, 18 for maintaining the switching relay energized for a predetermined time after the moisture detector returns to its dry state. The delay device comprises a capacitor 18 which is charged via resistors 22, 23, 17 and the moisture detector 21 when the transistors 15, 16 are rendered conducting by the moisture detector 21, and when the moisture has been removed from the latter the capacitor 18 discharges to maintain the transistors 15, 16 conducting and the motor 10 energized for a desired period. A further moisture detector 37 may be provided which is ineffective during light rain, but during heavy rain causes an amplifier 35, 36 to energize a relay 34 to actuate a switch 11 for operating the motor 10 at a higher speed. The moisture detector 21 may comprise spaced conductive foils 29, 30 (Fig. 2, not shown), arranged on the windscreen with conductive foils arranged therebetween and spaced by air gaps. The two moisture detectors 21, 47 may have a common electrode. Alternatively the moisture detector 21 may comprise a disc 42 (Fig. 5, not shown) rotated by an electric motor controlled by the switch 12 and comprising inter digitated conductive elements spaced by an air gap.
GB1250280D 1968-09-21 1969-09-22 Expired GB1250280A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP43068580A JPS4911906B1 (en) 1968-09-21 1968-09-21
JP43069259A JPS4911907B1 (en) 1968-09-25 1968-09-25

Publications (1)

Publication Number Publication Date
GB1250280A true GB1250280A (en) 1971-10-20

Family

ID=26409789

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1250280D Expired GB1250280A (en) 1968-09-21 1969-09-22

Country Status (4)

Country Link
DE (1) DE1946748A1 (en)
FR (1) FR2018607A1 (en)
GB (1) GB1250280A (en)
SE (1) SE362615B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2103421B1 (en) * 1970-08-21 1975-10-10 Mitsubishi Electric Corp
EP0136984A3 (en) * 1983-09-06 1987-02-25 Luigi Marra Windscreen wiper autonomous device
US4665351A (en) * 1986-02-05 1987-05-12 General Motors Corporation Windshield wiper control system and a precipitation sensor therefor
AT399320B (en) * 1993-02-01 1995-04-25 Gerd Kittag CONTROL DEVICE FOR THE ELECTRIC MOTOR DRIVE OF AT LEAST ONE WINDOW WIPER OF A VEHICLE

Also Published As

Publication number Publication date
SE362615B (en) 1973-12-17
DE1946748A1 (en) 1970-06-25
FR2018607A1 (en) 1970-05-29

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee