GB8921025D0 - Motor position sensor - Google Patents

Motor position sensor

Info

Publication number
GB8921025D0
GB8921025D0 GB898921025A GB8921025A GB8921025D0 GB 8921025 D0 GB8921025 D0 GB 8921025D0 GB 898921025 A GB898921025 A GB 898921025A GB 8921025 A GB8921025 A GB 8921025A GB 8921025 D0 GB8921025 D0 GB 8921025D0
Authority
GB
United Kingdom
Prior art keywords
motor
control signal
position sensor
motor position
control system
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.)
Pending
Application number
GB898921025A
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.)
Britax Weathershields Ltd
Original Assignee
Britax Weathershields 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 Britax Weathershields Ltd filed Critical Britax Weathershields Ltd
Priority to GB898921025A priority Critical patent/GB8921025D0/en
Publication of GB8921025D0 publication Critical patent/GB8921025D0/en
Priority to PCT/GB1990/001429 priority patent/WO1991004607A1/en
Pending legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/40—Safety devices, e.g. detection of obstructions or end positions
    • E05F15/41—Detection by monitoring transmitted force or torque; Safety couplings with activation dependent upon torque or force, e.g. slip couplings
    • 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
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/03—Arrangements for regulating or controlling the speed or torque of electric DC motors for controlling the direction of rotation of DC motors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53—Type of wing
    • E05Y2900/55—Windows
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
    • H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
    • H02H7/0851—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load for motors actuating a movable member between two end positions, e.g. detecting an end position or obstruction by overload signal
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
    • H02H7/093—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against increase beyond, or decrease below, a predetermined level of rotational speed

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Direct Current Motors (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Control Of Linear Motors (AREA)

Abstract

A control system for a d.c. commutated motor (10) is arranged to move a driven element (11) along a predetermined path. The control system includes means (16) for deriving a control signal by producing an electrical signal proportional to the electric current in the motor. A filter (22) isolates an alternating component of said electrical signal proportional to the electrical current through the motor, and an amplifier (24, 26) produces a control signal having a pulse waveform of frequency equal to the frequency of said a.c. component. The control signal is applied to a computer (20) which controls the power supply to the motor (10).
GB898921025A 1989-09-16 1989-09-16 Motor position sensor Pending GB8921025D0 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB898921025A GB8921025D0 (en) 1989-09-16 1989-09-16 Motor position sensor
PCT/GB1990/001429 WO1991004607A1 (en) 1989-09-16 1990-09-17 D.c. motor control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB898921025A GB8921025D0 (en) 1989-09-16 1989-09-16 Motor position sensor

Publications (1)

Publication Number Publication Date
GB8921025D0 true GB8921025D0 (en) 1989-11-01

Family

ID=10663202

Family Applications (1)

Application Number Title Priority Date Filing Date
GB898921025A Pending GB8921025D0 (en) 1989-09-16 1989-09-16 Motor position sensor

Country Status (2)

Country Link
GB (1) GB8921025D0 (en)
WO (1) WO1991004607A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2115960T3 (en) * 1993-07-08 1998-07-01 Doduco Gmbh PROCEDURE FOR CONTROLLING A DIRECT CURRENT MOTOR INTENDED TO MOVE A WINDOW MOON IN AN AUTOMOBILE VEHICLE.
EP1679777A1 (en) * 2005-01-05 2006-07-12 Behr-Hella Thermocontrol GmbH Device for indicating an obstruction of a DC commutated motor based on the ripple of the field current

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58110778A (en) * 1981-12-23 1983-07-01 ワイケイケイ株式会社 Control apparatus of automatic opening and closing door
DE3226614A1 (en) * 1982-07-16 1984-01-19 Robert Bosch Gmbh, 7000 Stuttgart CIRCUIT ARRANGEMENT FOR INPUTING AND EXTENDING A MOTOR-DRIVEN ANTENNA
IT1204907B (en) * 1987-01-15 1989-03-10 Cavis Cavetti Isolati Spa CIRCUIT FOR THE CONTROL OF THE ROTATION OF MOTORS, USED FOR THE MOVEMENT OF ELECTRIC GLASSES AND FOR A MULTIPLICITY OF APPLICATIONS ON MOTOR VEHICLES AND SIMILAR

Also Published As

Publication number Publication date
WO1991004607A1 (en) 1991-04-04

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