GB1522822A - Electric windscreen wiper systems - Google Patents

Electric windscreen wiper systems

Info

Publication number
GB1522822A
GB1522822A GB3927875A GB3927875A GB1522822A GB 1522822 A GB1522822 A GB 1522822A GB 3927875 A GB3927875 A GB 3927875A GB 3927875 A GB3927875 A GB 3927875A GB 1522822 A GB1522822 A GB 1522822A
Authority
GB
United Kingdom
Prior art keywords
motors
windscreen wiper
sept
aligned
periphery
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
GB3927875A
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.)
General Motors Ltd
Original Assignee
General Motors 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 General Motors Ltd filed Critical General Motors Ltd
Priority to GB3927875A priority Critical patent/GB1522822A/en
Publication of GB1522822A publication Critical patent/GB1522822A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
    • H02K23/66—Structural association with auxiliary electric devices influencing the characteristic of, or controlling, the machine, e.g. with impedances or switches
    • 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
    • B60S1/0814—Wipers or the like, e.g. scrapers characterised by the drive electrically driven using several drive motors; motor synchronisation circuits
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G01P3/486—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by photo-electric detectors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G01P3/487—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by rotating magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
    • H02P5/46—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another
    • H02P5/50—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another by comparing electrical values representing the speeds

Abstract

1522822 Automatic controi of DC motors GENERAL MOTORS Ltd 22 Sept 1976 [25 Sept 1975] 39278/75 Heading H2L Two D.C. motors driving respective wiper arm and blade assemblies of a vehicle windscreen wiper system are controlled by the synchronizing circuit described with reference to Fig. 1 of Specification 1,522,523, but the sequences of similar electrical pulses are generated in one of the following ways: (a) a photoelectric system in which the light source (100) and sensor (102) are aligned with the apertures (98) in the motor armature (96) formed by the space in each armature slot above the windings (101), Figs. 2 and 3 (not shown); (b) a Hall Effect device (110) aligned with the castellated periphery (106) of the motor armature (96) to detect the magnetic variations produced by the poles, Figs. 5 and 6 (not shown). These variations may be strengthened by providing a magnet in each aperture around the periphery.
GB3927875A 1976-09-22 1976-09-22 Electric windscreen wiper systems Expired GB1522822A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3927875A GB1522822A (en) 1976-09-22 1976-09-22 Electric windscreen wiper systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3927875A GB1522822A (en) 1976-09-22 1976-09-22 Electric windscreen wiper systems

Publications (1)

Publication Number Publication Date
GB1522822A true GB1522822A (en) 1978-08-31

Family

ID=10408678

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3927875A Expired GB1522822A (en) 1976-09-22 1976-09-22 Electric windscreen wiper systems

Country Status (1)

Country Link
GB (1) GB1522822A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2538327A1 (en) * 1982-12-24 1984-06-29 Rau Swf Autozubehoer INSTALLATION OF WINDSCREEN WIPES FOR MOTOR VEHICLES COMPRISING TWO WIPERS DRIVEN EACH BY A MOTOR
US4665488A (en) * 1984-12-06 1987-05-12 General Motors Corporation Synchronizing wiper control
EP0227974A2 (en) * 1985-12-03 1987-07-08 Asmo Co., Ltd. A device for opening and closing a vehicle top
US4766356A (en) * 1985-12-03 1988-08-23 Asmo Co., Ltd. Device for opening and closing a vehicle top
US4918360A (en) * 1987-08-04 1990-04-17 Asmo Co., Ltd. Electric-driving device for openable members
US4991903A (en) * 1987-08-04 1991-02-12 Asmo Co., Ltd. Drive equipment for opening and closing of a vehicle top
EP0424831A2 (en) * 1989-10-26 1991-05-02 Hella KG Hueck & Co. Method and device for regulating interior temperature of a motor vehicle
EP0524384A1 (en) * 1991-07-26 1993-01-27 RICERCA ELETTROMECCANICA S.r.l An electric motor including a connectable-disconnectable encoder comprising a hall-effect sensor arranged between the field poles of the stator
EP0567781A2 (en) * 1992-03-30 1993-11-03 Carl-Michael Dipl.-Kfm. Dipl.-Ing. Bockwoldt Method and device for controlling electric motors
WO1997011520A1 (en) * 1995-09-20 1997-03-27 Siemens Aktiengesellschaft Device for detecting the rotor speed or position in a continuously excited electric motor
EP1039301A1 (en) * 1999-03-23 2000-09-27 Itt Manufacturing Enterprises, Inc. Motor rotation detector apparatus
DE10145103A1 (en) * 2001-09-13 2003-04-03 Bosch Gmbh Robert Wiper system for vehicles, in particular for automobile windshields

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2538327A1 (en) * 1982-12-24 1984-06-29 Rau Swf Autozubehoer INSTALLATION OF WINDSCREEN WIPES FOR MOTOR VEHICLES COMPRISING TWO WIPERS DRIVEN EACH BY A MOTOR
US4585980A (en) * 1982-12-24 1986-04-29 Itt Industries, Inc. Windshield wiper control
US4665488A (en) * 1984-12-06 1987-05-12 General Motors Corporation Synchronizing wiper control
EP0227974A2 (en) * 1985-12-03 1987-07-08 Asmo Co., Ltd. A device for opening and closing a vehicle top
EP0227974A3 (en) * 1985-12-03 1987-07-22 Asmo Co Ltd A device for opening and closing a vehicle top
US4766356A (en) * 1985-12-03 1988-08-23 Asmo Co., Ltd. Device for opening and closing a vehicle top
US4918360A (en) * 1987-08-04 1990-04-17 Asmo Co., Ltd. Electric-driving device for openable members
US4991903A (en) * 1987-08-04 1991-02-12 Asmo Co., Ltd. Drive equipment for opening and closing of a vehicle top
EP0424831A2 (en) * 1989-10-26 1991-05-02 Hella KG Hueck & Co. Method and device for regulating interior temperature of a motor vehicle
EP0424831A3 (en) * 1989-10-26 1992-01-02 Hella Kg Hueck & Co. Method and device for regulating interior temperature of a motor vehicle
EP0524384A1 (en) * 1991-07-26 1993-01-27 RICERCA ELETTROMECCANICA S.r.l An electric motor including a connectable-disconnectable encoder comprising a hall-effect sensor arranged between the field poles of the stator
EP0567781A2 (en) * 1992-03-30 1993-11-03 Carl-Michael Dipl.-Kfm. Dipl.-Ing. Bockwoldt Method and device for controlling electric motors
EP0567781A3 (en) * 1992-03-30 1994-04-20 Bockwoldt Carl Michael
WO1997011520A1 (en) * 1995-09-20 1997-03-27 Siemens Aktiengesellschaft Device for detecting the rotor speed or position in a continuously excited electric motor
US6091220A (en) * 1995-09-20 2000-07-18 Siemens Aktiengesellschaft Device for detecting rotor speed or position in a continuously excited electric motor
EP1039301A1 (en) * 1999-03-23 2000-09-27 Itt Manufacturing Enterprises, Inc. Motor rotation detector apparatus
DE10145103A1 (en) * 2001-09-13 2003-04-03 Bosch Gmbh Robert Wiper system for vehicles, in particular for automobile windshields
US6867559B2 (en) 2001-09-13 2005-03-15 Robert Bosch Gmbh Wiper arrangement for motor vehicles, especially for car windscreens
DE10145103B4 (en) * 2001-09-13 2011-08-11 Robert Bosch GmbH, 70469 Wiper system for vehicles, in particular for automobile windscreens

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee