DE2933517A1 - ENCODER FOR, IN PARTICULAR INDUCTIVE, DETECTION OF THE SPEED AND / OR A MARKED TURNING ANGLE OF A SHAFT - Google Patents

ENCODER FOR, IN PARTICULAR INDUCTIVE, DETECTION OF THE SPEED AND / OR A MARKED TURNING ANGLE OF A SHAFT

Info

Publication number
DE2933517A1
DE2933517A1 DE19792933517 DE2933517A DE2933517A1 DE 2933517 A1 DE2933517 A1 DE 2933517A1 DE 19792933517 DE19792933517 DE 19792933517 DE 2933517 A DE2933517 A DE 2933517A DE 2933517 A1 DE2933517 A1 DE 2933517A1
Authority
DE
Germany
Prior art keywords
shaft
rotation
marking
disk
detection
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.)
Ceased
Application number
DE19792933517
Other languages
German (de)
Inventor
Rainer 7143 Vaihingen Bone
Günter Dipl.-Ing. 7257 Ditzingen Hönig
Uwe Dipl.-Ing. Dr. 7140 Ludwigsburg Kiencke
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to DE19792933517 priority Critical patent/DE2933517A1/en
Priority to FR8017780A priority patent/FR2463916A1/en
Priority to GB8026393A priority patent/GB2058358B/en
Priority to IT24203/80A priority patent/IT1132427B/en
Publication of DE2933517A1 publication Critical patent/DE2933517A1/en
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P7/00—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices
    • F02P7/06—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of circuit-makers or -breakers, or pick-up devices adapted to sense particular points of the timing cycle
    • F02P7/061—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of circuit-makers or -breakers, or pick-up devices adapted to sense particular points of the timing cycle pick-up devices without mechanical contacts
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/245—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains using a variable number of pulses in a train
    • G01D5/2454—Encoders incorporating incremental and absolute signals
    • G01D5/2455—Encoders incorporating incremental and absolute signals with incremental and absolute tracks on the same encoder
    • G01D5/2457—Incremental encoders having reference marks
    • 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
    • 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
    • G01P3/489—Digital circuits therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/0097—Electrical control of supply of combustible mixture or its constituents using means for generating speed signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Description

5 66 65 66 6

8.8.1979 Lr/Sm8.8.1979 Lr / Sm

ROBERT BOSCH GMBH, 7OOO Stuttgart 1ROBERT BOSCH GMBH, 7OOO Stuttgart 1

Geber zur, insbesondere induktiven, Erfassung der Drehzahl und/oder eines markierten Drehwinkels einer Welle __Encoder for, especially inductive, detection of the speed and / or a marked angle of rotation of a shaft __

Die Erfindung betrifft einen Geber nach dem Gattungsbegriff des Hauptanspruchs.The invention relates to a transmitter according to the preamble of the main claim.

Bei bekannten Gebern dieser Art für mehrzylindrige Brennkraftmaschinen muß einer der mehreren Bereiche einem bestimmten Zylinder der Brennkraftmaschine zugeordnet werden können. Hierzu können aus ferromagnetischem Werkstoff hergestellte, in die Scheibe eingesetzte Stifte als Bezugmarkengeber vorgesehen werden, die beim Vorbeilauf an einer mit einem Eisenkern versehenen Induktionsspule in dieser einen Bezugsmarkenimpuls induzieren, mit welchem die Zuordnung eines Bereiches zu einen bestimmten Zylinder erfolgen kann. Derartige Anordnungen erfordern jedoch einen zusätzlichen Aufwand für die Abtastung der Bezugsmarken.In known encoders of this type for multi-cylinder internal combustion engines one of the several areas must be able to be assigned to a specific cylinder of the internal combustion engine. For this purpose, pins made of ferromagnetic material and inserted into the disk can be provided as reference mark transmitters that a reference mark pulse is generated when passing an induction coil provided with an iron core induce, with which the assignment of an area to a specific cylinder can take place. Such arrangements however, require an additional effort for the scanning of the reference marks.

Der Erfindung liegt die Aufgabe zugrunde, für einen insbesondere induktiv arbeitenden Geber die Randzone der Scheibe so auszubilden, daß mit einfachen technischen Mitteln die einzelnen Bereiche erfaßt und einer der Bereiche mit einer Bezugsmarke versehen werden kann, die mit den gleichen Einrichtungen wie die Bereiche abgetastet werden kann. Hierzu sind erfindungsgemäß die im Kennzeichen des Hauptanspruchs angegebenen Maßnahmen vorgesehen. Besonders günstige "Verhältnisse ergaben sich beii einer, aus magnetischem WiMCfctoff hergestellten ,, \j Scheibe/Lbei Wllcher die zwischen den Markierungen li#gend|n ¥t \ \ The invention is based on the object of designing the edge zone of the disc for a particularly inductive transmitter so that the individual areas can be detected with simple technical means and one of the areas can be provided with a reference mark which is scanned with the same devices as the areas can. For this purpose, the measures specified in the characterizing part of the main claim are provided according to the invention. Particularly favorable "conditions resulted beii one made of magnetic WiMCfctoff ,, \ j disc / Lbei Wllcher between the marks li # quietly | n ¥ t \ \

130013/0263130013/0263

ORIGINAL INSPECTEDORIGINAL INSPECTED

R. 5666 Lr /SmR. 5666 Lr / Sm

Bereiche als Kreisringabschnitte aus der ursprünglich kreisförmigen Scheibe ausgestanzt oder ausgefräst sind und die Markierungen demgemäß radial von den Umfangsflachen der Bereiche abstehen. Weitere vorteilhafte Ausgestaltungen ergeben sieh aus den Unteransprüchen in Verbindung mit dem nachstehend beschriebenen Ausführungsbeispiel, einer Geberscheibe aus dünnem Stahlblech, die in axialer Ansicht dargestellt ist. Diese Scheibe S sitzt auf einer Welle W, beispielsweise der Kurbelwelle einer im übrigen nicht dargestellten Brennkraftmaschine und ist an ihrer Randzone in zwölf Bereiche i bis 12 unterteilt. Diese Bereiche sind durch Ausstanzen vor. in Umfangsrichtung sich jeweils über 27 erstreckender. Ringabschnitten erzeugt und sind in Umfangsrichtung gegenüber einem nachfolgenden oder vorausgehenden Bereich durch jeweils einen schmalen, rechteckförmigen Zahn bis 32 begrenzt, der über die Umfangsflache der Bereiche vorsteht und eine in Umfangsrichtung gemessene Breite von 3 hat.Areas as circular ring sections from the originally circular Disc are punched out or milled out and the markings accordingly radially from the peripheral surfaces of the areas stick out. Further advantageous refinements can be found in the subclaims in connection with the Embodiment described below, a transducer disk made of thin sheet steel, which is shown in an axial view is. This disk S is seated on a shaft W, for example the crankshaft of a not otherwise shown Internal combustion engine and is divided into twelve areas i to 12 at its edge zone. These areas are punched out before. each extending over 27 in the circumferential direction. Ring sections generated and are in the circumferential direction compared to a subsequent or preceding area by a narrow, rectangular tooth in each case limited to 32, which protrudes over the circumferential surface of the areas and has a circumferentially measured width of 3.

Um den bei 1 angedeuteten Bereich beim Umlauf der Scheibe identifizieren und einem bestimmten Zylinder, beispielsweise dem ersten Zylinder der Brennkraftmaschine zuordnen zu können, ist im Bereich 1 um 5° in Umfangsrichtung gegenüber dem vorhergehenden Zahn 32 versetzt ein wie die übrigen Zähne ausgebildeter Bezugsmarken-Zahn 33 vorgesehen. Dieser hat gegenüber dem nachfolgenden, als Markierung dienenden Zahn einen Teilungsabstand von 30 -5 = 25 · Beim dargestellten Ausführungsbeispiel ist für die Bereiche eine 30°-Teilung vorgesehen, welche den großen Vorteil mit sich bringt, daß die Geberscheibe eine universelle Anwendung bei allen symmetrischen Brennkraftmaschinen und sogar bei unsymmetrischen V6-Zylinder-Brennkraftmaschinen erlaubt. Ein weiterer Vorteil besteht darin, daß nur eine einfache, unipolare Auswerteschaltung erforderlich ist, die bereits für andere bekannte Systeme vorhanden ist.In order to identify the area indicated at 1 during the rotation of the disk and a specific cylinder, for example assign to the first cylinder of the internal combustion engine can, is offset in area 1 by 5 ° in the circumferential direction with respect to the preceding tooth 32, like the other teeth trained reference mark tooth 33 is provided. This one has compared to the following tooth, which is used as a marking, a pitch of 30 -5 = 25 · In the case of the illustrated Embodiment is provided for the areas a 30 ° division, which has the great advantage that the Sensor disc universal application in all symmetrical internal combustion engines and even in asymmetrical V6-cylinder internal combustion engines permitted. Another advantage is that only a simple, unipolar evaluation circuit is required, which is already available for other known systems.

130013/0263130013/0263

Claims (3)

R. 5666
8.8.1979 Lr/SmR. 5666
8.8.1979 Lr / Sm ROBERT BOSCH GMBH, 7000 Stuttgart 1ROBERT BOSCH GMBH, 7000 Stuttgart 1 AnsprücheExpectations nl.yGeber zur, insbesondere induktiven, Erfassung der Drehzahl und/oder eines markierten Drehwinkels einer Welle mit Hilfe einer mit der Welle umlaufenden Scheibe, die an ihrem Umfang mehrere in Drehrichtung hintereinanderliegende Bereiche aufweist, die an ihrer Umfangsflache gleichen radialen Abstand von der Drehachse haben und vom nachfolgenden Bereich durch je eine schmale, von steilen, quer zur Drehrichtung sich erstreckenden Flanken begrenzte Markierung getrennt sind, dadurch gekennzeichnet, daß in einem der B'ereiche (1 bis 12) der Scheibe (S) eine Bezugsmarke (33) angeordnet ist, deren Winkelabstand zur vorangehenden oder zur nachfolgenden Markierung wesentlich kleiner, insbesondere höchstens halb so groß wie der Winkelabstand zur vorhergehenden Markierung (32) ist b zw. umgekehrt.nl.yEncoder for, especially inductive, detection of the speed and / or a marked angle of rotation of a shaft with the aid of a disk rotating with the shaft, which on its circumference has a plurality of regions lying one behind the other in the direction of rotation, the same radial spacing on their circumferential surface from the axis of rotation and from the following area through a narrow one, from steep one extending transversely to the direction of rotation Marking bounded by flanks are separated, characterized in that in one of the areas (1 to 12) the disc (S) a reference mark (33) is arranged, the angular distance of which to the preceding or the following marking much smaller, in particular at most half as large as the angular distance to the preceding marking (32) b or vice versa. 130013/0263130013/0263 - 2 - R. 5666- 2 - R. 5666 Lr/SmLr / Sm 2. Geber nach Anspruch 2, dadurch gekennzeichnet, daß die Markierungen (21 bis 32) eine in Umfangsrichtung sich erstreckende Breite von 2° bis 5°} vorzugsweise 3° haben.2. Encoder according to claim 2, characterized in that the markings (21 to 32) have a circumferential width of 2 ° to 5 ° } preferably 3 °. 3. Geber nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Markierungen (21 bis 32) um jeweils 30° in Umfangsrichtung der Scheibe gegeneinander versetzt sind.3. Encoder according to claim 1 or 2, characterized in that the markings (21 to 32) are offset from one another by 30 ° in the circumferential direction of the disk. H. Geber nach Anpruch 3, dadurch gekennzeichnet, daß die Bezugsmarke (33) um etwa 5 gegenüber ihrer benachbarten Markierung (32) in Umfangsrichtung der Scheibe versetzt angeordnet ist. H. Encoder according to claim 3, characterized in that the reference mark (33) is arranged offset by about 5 in relation to its adjacent marking (32) in the circumferential direction of the disk. 130013/0263130013/0263
DE19792933517 1979-08-18 1979-08-18 ENCODER FOR, IN PARTICULAR INDUCTIVE, DETECTION OF THE SPEED AND / OR A MARKED TURNING ANGLE OF A SHAFT Ceased DE2933517A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE19792933517 DE2933517A1 (en) 1979-08-18 1979-08-18 ENCODER FOR, IN PARTICULAR INDUCTIVE, DETECTION OF THE SPEED AND / OR A MARKED TURNING ANGLE OF A SHAFT
FR8017780A FR2463916A1 (en) 1979-08-18 1980-08-12 Engine shaft revolution rate measurement and sector detection - using common disc reference and sector separating marker sensing
GB8026393A GB2058358B (en) 1979-08-18 1980-08-13 Detecting the rotational speed and/or angular position of a shaft
IT24203/80A IT1132427B (en) 1979-08-18 1980-08-14 TRANSDUCER FOR THE DETECTION, IN PARTICULAR INDUCTIVE, OF THE NUMBER OF REVOLUTIONS AND / OR A MARKED ROTATION ANGLE OF A SHAFT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792933517 DE2933517A1 (en) 1979-08-18 1979-08-18 ENCODER FOR, IN PARTICULAR INDUCTIVE, DETECTION OF THE SPEED AND / OR A MARKED TURNING ANGLE OF A SHAFT

Publications (1)

Publication Number Publication Date
DE2933517A1 true DE2933517A1 (en) 1981-03-26

Family

ID=6078771

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792933517 Ceased DE2933517A1 (en) 1979-08-18 1979-08-18 ENCODER FOR, IN PARTICULAR INDUCTIVE, DETECTION OF THE SPEED AND / OR A MARKED TURNING ANGLE OF A SHAFT

Country Status (3)

Country Link
DE (1) DE2933517A1 (en)
FR (1) FR2463916A1 (en)
IT (1) IT1132427B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19813497A1 (en) * 1998-03-26 1999-09-30 Vogt Electronic Ag Inductive displacement transmitter with primary and secondary coils
DE19918414C5 (en) * 1999-04-23 2010-11-25 Novoferm Tormatic Gmbh Drive unit for a gate and method for operating a drive unit for a gate

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2357061A1 (en) * 1973-11-15 1975-05-22 Bosch Gmbh Robert PULSE GENERATOR

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2357061A1 (en) * 1973-11-15 1975-05-22 Bosch Gmbh Robert PULSE GENERATOR

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19813497A1 (en) * 1998-03-26 1999-09-30 Vogt Electronic Ag Inductive displacement transmitter with primary and secondary coils
DE19813497C2 (en) * 1998-03-26 2000-11-16 Vogt Electronic Ag Inductive displacement sensor
DE19918414C5 (en) * 1999-04-23 2010-11-25 Novoferm Tormatic Gmbh Drive unit for a gate and method for operating a drive unit for a gate

Also Published As

Publication number Publication date
IT1132427B (en) 1986-07-02
FR2463916B3 (en) 1982-06-04
IT8024203A0 (en) 1980-08-14
FR2463916A1 (en) 1981-02-27

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