DE3008121A1 - Signal emitter for vehicle engine distributor - consists of magnetic arm projecting from rotor and passing between magnets and Hall generator - Google Patents

Signal emitter for vehicle engine distributor - consists of magnetic arm projecting from rotor and passing between magnets and Hall generator

Info

Publication number
DE3008121A1
DE3008121A1 DE19803008121 DE3008121A DE3008121A1 DE 3008121 A1 DE3008121 A1 DE 3008121A1 DE 19803008121 DE19803008121 DE 19803008121 DE 3008121 A DE3008121 A DE 3008121A DE 3008121 A1 DE3008121 A1 DE 3008121A1
Authority
DE
Germany
Prior art keywords
magnets
hall generator
vehicle engine
rotor
passing
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Withdrawn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
DE19803008121
Other languages
German (de)
Inventor
Jürgen 7143 Vaihingen Assenheimer
Günter 7000 Stuttgart Brand
Manfred 7257 Ditzingen Franz
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 DE19803008121 priority Critical patent/DE3008121A1/en
Publication of DE3008121A1 publication Critical patent/DE3008121A1/en
Withdrawn legal-status Critical Current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
    • F02P7/067—Electromagnetic pick-up devices, e.g. providing induced current in a coil
    • F02P7/07—Hall-effect pick-up devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/965—Switches controlled by moving an element forming part of the switch
    • H03K17/97—Switches controlled by moving an element forming part of the switch using a magnetic movable element

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Abstract

The signal emitting device for the distributor of a vehicle engine, for operating an electronic device consists of a shutter (1) projecting at right angles from a rotor shaft (5). This arm is made of a magnetic material such as soft iron, and passes between a Hall generator (2) and two magnets (3,4) underneath it and spaced either side of it. The pole surfaces (N) of the magnets have the same polarity, and are covered by the shutter during part of its travel.

Description

Signalgeber für Kraftfahrzeuge, insbesondere zur ßuslösungSignal transmitter for motor vehicles, in particular for triggering

von Zündvorgängen Stand der Technik Die Erfindung geht aus von einem Signalgeber nach der Gattung des Hauptanspruches. Es ist (nach der DE-OS 2 800 621) bereits ein in dieser Richtung liegender Signalgeber bekannt, bei dem Magnet, Hall-Generator und den magnetischen Fluß führende Polschuhe durch Einbettung in Kunststoff zu einer festen Baueinheit zusammengefaßt sind, die zwischen Magnet und Hall-Generator einen Zwischenraum für die Hindurchbewegung der Blende aufweist. Bei Eingriff der Blende in den Zwischenraum wird der von dem Magnet ausgehenae magnetische Fluß kurzgeschlossen und somit seine Einwirkung auf den Hall-Generator unterbunden. Der bekannte Signalgeber hat eine sehr gedrungene Bauweise, was sich zuweilen nachteiligt auf die Funktionsgenauigkeit auswirkt. Vor allem lassen sich nicht immer unerwünschte Streuflüsse zufriedenstellend unterdrücken. Des weiteren ergibt sich - insbesondere bei Anwendung einer rotierenden Blende - eine ungünstige Raumbeanspruchung, was sich dann nachteilig auswirkt, wenn der Signalgeber in den Zündverteiler eines Kraftfahrzeuges unterzubringen ist.of ignition processes prior art The invention is based on one Signal generator according to the genre of the main claim. It is (according to DE-OS 2 800 621) already a signal transmitter lying in this direction is known, in the case of the magnet, Hall generator and the magnetic flux leading pole pieces by embedding in plastic to one Fixed structural unit are summarized, the one between magnet and Hall generator Has clearance for the passage of the diaphragm. When the bezel engages The magnetic flux emanating from the magnet is short-circuited into the gap and thus its effect on the Hall generator is prevented. The well-known signal generator has a very compact design, which sometimes has a negative effect on the functional accuracy affects. Above all, unwanted leakage fluxes cannot always be satisfactory suppress. Further results - especially when used a rotating diaphragm - an unfavorable space requirement, which is then disadvantageous affects when the signal transmitter is housed in the ignition distributor of a motor vehicle is.

Vorteile der Erfindung Bei dem erfindungsgemäßen Signalgeber wird durch Anwendung der kennzeichnenden Maßnahmen des Hauptanspruches die vorerwähnte Unzulänglichkeit vermieden.Advantages of the Invention In the signal transmitter according to the invention by applying the characterizing measures of the main claim the aforementioned Inadequacy avoided.

Zeichnung Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Die Zeichnung zeigt das Konstruktionsprinzip eines Signalgebers nach der Erfindung.Drawing An embodiment of the invention is shown in the drawing and explained in more detail in the following description. The drawing shows the construction principle of a signal transmitter according to the invention.

Beschreibung des Ausführungsbeispieles Der dargestellte Signalgeber weist eine aus magnetisch leitfähigem Material, z.B. Weicheisen bestehende Blende 1 auf, die zwischen. einem Hall-Generator 2 einerseits und zwei Magneten 3, 4 andererseits hindurchbewegbar ist. Dabei sind die Magnete 3, 4 mit Polflächen N gleicher Polarität dem Hall-Generator zugewandt und zwar in der Weise, daR diese Polflächen N bei der Vorbeibewegung der Blende 1 gemeinsam abdeckbar sind.Description of the exemplary embodiment The signal transmitter shown has a cover made of magnetically conductive material, e.g. soft iron 1 on that between. a Hall generator 2 on the one hand and two magnets 3, 4 on the other can be moved through. The magnets 3, 4 with pole faces N are of the same polarity facing the Hall generator in such a way that these pole faces N in the Movement of the panel 1 can be covered together.

Im gewählten Beispielsfall ist der Schenkel 1 durch eine Welle 5 in Rotation versetzbar. Der Schenkel 1 ist ein von der Welle 5 radial abstehender Körper, der Plattenform hat und mit seiner Plattenebene in der Drehebene liegt.In the example chosen, the leg 1 is in by a shaft 5 Rotation adjustable. The leg 1 is a body protruding radially from the shaft 5, the plate shape and is with its plate plane in the plane of rotation.

Die Welle 5 ist im vorliegenden Fall als Hohlwelle ausgeführt, womit symbolisch angedeutet werden soll, daß es sich um diejenige Hülse in einem an sich bekannten Zündverteiler handelt, die über einen Fliehkraftversteller mit der eigentlichen Verteilerwelle in Wirkungsverbindung steht.In the present case, the shaft 5 is designed as a hollow shaft, which means to be indicated symbolically that it is that sleeve in itself known distributor, which has a centrifugal adjuster with the actual Distributor shaft is in operative connection.

Die strichpunktierten Linienzüge 6 sollen andeuten, daß die Magnete 3, 4 und der Hall-Generator 2 feste Lage haben.The dash-dotted lines 6 are intended to indicate that the magnets 3, 4 and the Hall generator 2 have a fixed position.

Ist jedoch der Signalgeber Bestandteil eines Zündverteilers, so können diese Bauteile 2, 3, 4 als feste Baueinheit gegenüber der Welle 5 um einen Drehwinkelabschnitt verstellbar ausgeführt sein, wobei diese Verstellung durch eine an das Vergasersaugrohr der Brennkraftmaschine angeschlossene Unterdruckmeßdose bewirkt wird.However, if the signal transmitter is part of an ignition distributor, then these components 2, 3, 4 as a fixed structural unit with respect to the shaft 5 by an angle of rotation section be adjustable, this adjustment by a to the carburetor suction pipe the internal combustion engine connected vacuum load cell is effected.

Die bei der Unterbrechung und bei der Freigabe des magnetischen Flusses an dem Hall-Generator 2 entstehenden Signale können beispielsweise einem elektronischen Steuergerät zugeführt werden, mit dessen Hilfe dann in geeigneten Zeitpunkten ein über die Primärwicklung einer Zündspule geführte Strom ein- und ausgeschaltet wird.The one when the magnetic flux is interrupted and released at the Hall generator 2 resulting signals can, for example, an electronic Control device are supplied, with the help of which then at appropriate times The current passed through the primary winding of an ignition coil is switched on and off.

Selbstverständlich können auch mehrere Blenden in geeigneten Winkelabständen radial von der Welle 5 ab stehen.Of course, several diaphragms can also be used at suitable angular intervals stand radially from the shaft 5.

Im vorliegenden Fall ist als elektrisches Schaltungselement der Hall-Generator erwähnt. Es wird jedoch als im Rahmen der Erfindung liegend angesehen, wenn dort ein Schaltungselement Anwendung findet, das außer dem Hall-Generator noch integrierte Schaltungsglieder, wie z.B. Schwellwertschalter, Verstärker oder dergleichen, enthält.In the present case, the Hall generator is used as the electrical circuit element mentioned. However, it is considered to be within the scope of the invention if there a circuit element is used that is integrated in addition to the Hall generator Circuit elements, such as threshold switches, amplifiers or the like, contains.

Claims (1)

Anspruch Signalgeber für Kraftfahrzeuge, insbesondere zur Auslösung von Zundvorgängen, mit einer aus magnetisch leitfähigem Material bestehenden Blende, die vorübergehend zwischen der Polfläche eines Magneten und einem Hall-Generator hindurchbewegbar ist, dadurch gekennzeichnet, daß dem Magnet (3) ein weiterer Magnet (4) benachbart ist und die auf dem Hall-Generator (2) weisenden, durch die Blende (1) abdeckbaren Polflächen (N) dieser beiden Magnete (3, 4) gleiche Polarität haben.Signal transmitter for motor vehicles, in particular for triggering of ignition processes, with a cover made of magnetically conductive material, the temporary between the pole face of a magnet and a Hall generator can be moved through, characterized in that the magnet (3) is another magnet (4) is adjacent and the one pointing to the Hall generator (2) through the diaphragm (1) coverable pole faces (N) of these two magnets (3, 4) have the same polarity.
DE19803008121 1980-03-03 1980-03-03 Signal emitter for vehicle engine distributor - consists of magnetic arm projecting from rotor and passing between magnets and Hall generator Withdrawn DE3008121A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19803008121 DE3008121A1 (en) 1980-03-03 1980-03-03 Signal emitter for vehicle engine distributor - consists of magnetic arm projecting from rotor and passing between magnets and Hall generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803008121 DE3008121A1 (en) 1980-03-03 1980-03-03 Signal emitter for vehicle engine distributor - consists of magnetic arm projecting from rotor and passing between magnets and Hall generator

Publications (1)

Publication Number Publication Date
DE3008121A1 true DE3008121A1 (en) 1981-09-24

Family

ID=6096137

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19803008121 Withdrawn DE3008121A1 (en) 1980-03-03 1980-03-03 Signal emitter for vehicle engine distributor - consists of magnetic arm projecting from rotor and passing between magnets and Hall generator

Country Status (1)

Country Link
DE (1) DE3008121A1 (en)

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Legal Events

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8141 Disposal/no request for examination