DE4108388C2 - Device for contactless detection of at least two positions of a switching element - Google Patents
Device for contactless detection of at least two positions of a switching elementInfo
- Publication number
- DE4108388C2 DE4108388C2 DE19914108388 DE4108388A DE4108388C2 DE 4108388 C2 DE4108388 C2 DE 4108388C2 DE 19914108388 DE19914108388 DE 19914108388 DE 4108388 A DE4108388 A DE 4108388A DE 4108388 C2 DE4108388 C2 DE 4108388C2
- Authority
- DE
- Germany
- Prior art keywords
- positions
- switching element
- receiver
- transmitter
- guide elements
- 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 - Lifetime
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Classifications
-
- 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
- H03K17/968—Switches controlled by moving an element forming part of the switch using opto-electronic devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
- F16H59/04—Ratio selector apparatus
- F16H59/044—Ratio selector apparatus consisting of electrical switches or sensors
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G9/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously
- G05G9/02—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only
- G05G9/04—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously
- G05G9/047—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
-
- 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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G9/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously
- G05G9/02—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only
- G05G9/04—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously
- G05G9/047—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
- G05G2009/04703—Mounting of controlling member
- G05G2009/04707—Mounting of controlling member with ball joint
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G9/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously
- G05G9/02—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only
- G05G9/04—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously
- G05G9/047—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks
- G05G2009/0474—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks characterised by means converting mechanical movement into electric signals
- G05G2009/04755—Magnetic sensor, e.g. hall generator, pick-up coil
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
Description
Die Erfindung betrifft eine Einrichtung zur berüh rungslosen Erfassung von mindestens zwei Positionen eines Schaltelementes gemäß dem Oberbegriff des Pa tentanspruchs 1.The invention relates to a device for touch effortless detection of at least two positions a switching element according to the preamble of Pa claim 1.
Eine derartige Einrichtung ist aus der DE 31 38 827 A1 vorbekannt. Dort handelt es sich um einen Gangwähler für hilfskraftbetätigte Getriebe. Mittels ei nes Schalthebels, der an seinem Kopf einen Magneten trägt, können verschiedene Schaltpositionen angewählt werden. Die Detektion dieser Positionen erfolgt über verschiedene magnetfeldempfindliche Sensoren. Die drehbare Lagerung des Schalthebels bedingt, daß sich der im Kopf des Hebels befindliche Magnet auf einer Bahn auf einer Kugelfläche bewegt. Die das Magnetfeld detektierenden Sensoren sind auf einem als Halterung ausgebildeten Träger angeordnet, der so gekrümmt ist, daß in den verschiedenen Schaltpositionen zwischen Magnet und Sensor weitgehend ein äquidistanter Ab stand existiert. Die Anschlüsse der Sensoren sind mit einer Platine verbunden, die auch andere elektronische Bauteile zur Auswertung der Sensorsignale trägt.Such a device is from DE 31 38 827 A1 previously known. There is one Gear selector for auxiliary gearboxes. Using egg Switch lever that has a magnet on its head different switching positions can be selected become. These positions are detected via various magnetic field sensitive sensors. The rotatable mounting of the shift lever requires that the magnet in the head of the lever on one Path moved on a spherical surface. The the magnetic field Detecting sensors are on a holder trained carrier arranged, which is so curved that in the different switching positions between Magnet and sensor largely an equidistant Ab stand exists. The connections of the sensors are with connected to a circuit board that also other electronic Components for evaluating the sensor signals.
Bei der vorbekannten Einrichtung müssen die An schlußdrähte der auf der gekrümmten Halterung be findlichen Sensoren zur Platine geführt werden, was un terschiedliche Längen der Anschlußdrähte der an sich als Standardbauteile ausgebildeten Sensoren bedeutet. Zum anderen verlangt die Verlegung der Anschlußdräh te von der Halterung zur ebenen Platine eine aufwendi ge Konstruktion und Montage.At the previously known facility, the An end wires on the curved bracket be sensitive sensors are led to the board, which un Different lengths of the connecting wires per se sensors designed as standard components. On the other hand, the laying of the connecting wires requires te from the bracket to the flat board a complex construction and assembly.
Der Erfindung liegt die Aufgabe zugrunde, eine Ein richtung der eingangs genannten Art so zu verbessern, daß die Konstruktion vereinfacht und die Montage der Sensoren erleichtert wird.The invention has for its object a to improve the direction of the type mentioned at the beginning, that the construction is simplified and the assembly of the Sensors is facilitated.
Diese Aufgabe wird durch die im Patentanspruch 1 angegebene Erfindung gelöst. Weiterbildungen und vorteilhafte Ausführungsbeispiele der Erfindung sind in den Unteransprüchen an gegeben.This object is achieved by the in claim 1 specified invention solved. Further training and advantageous embodiments the invention are in the dependent claims given.
Die Erfindung hat den Vorteil, daß durch die Verwen dung von magnetischen Leitelementen bewirkt wird, daß trotz der gekrümmten Fläche, die durch die Bewegung des Schaltelementes vorgegeben wird, alle schaltrelevanten Teile direkt auf der ebenen Platine eingebunden werden können.The invention has the advantage that by the use of magnetic guide elements is caused in spite of the curved surface that predetermined by the movement of the switching element all switching-relevant parts directly on the level Board can be integrated.
Die Ausbildung der Leitelemente ist auf verschiedene vorteilhafte Weisen möglich. Es können vorteilhaft ferromagnetische Flußleitbleche aus Weicheisenmaterial verwendet wer den. Dabei ist die Querschnittsform der Flußleitbleche beliebig. Als magnetische Sendeelemente können belie bige Flußerzeugungsvorrichtungen verwendet werden, wie z. B. Elektromagnete oder Permanentmagnete.The design of the guiding elements is different advantageous ways possible. It can advantageously be ferromagnetic Flow baffles made of soft iron material who used the. The cross-sectional shape of the flow guide plates any. As magnetic transmission elements, belie other flow generating devices are used, such as B. electromagnets or permanent magnets.
Bei einer bevorzugten Weiterbildung dienen als Emp fänger magnetfeldempfindliche Sensoren, die als inte grierte Schaltkreise mit Hall-Generator ausgebildet sind.In a preferred further training serve as Emp catcher magnetic field sensitive sensors, which as inte Integrated circuits designed with Hall generator are.
Eine andere vorteilhafte konstruktive Weiterbildung besteht darin, als magnetische Leitelemente ferroma gnetische Schrauben zu verwenden. Als Träger für die Schrauben kann z. B. ein Montagekörper dienen, wel cher sich zwischen Sender und Empfänger befindet. Dieses Gehäuse ist gleichzeitig eine Abschirmung der Platine gegen äußere Störeinflüsse. Insbesondere kom men hier Störungen durch äußere elektromagnetische Felder und Störungen, die sich durch Verschmutzungen ergeben können, in Betracht.Another advantageous constructive training consists of ferroma as magnetic guide elements to use magnetic screws. As a carrier for the Screws can e.g. B. serve a mounting body, wel between the transmitter and receiver. This housing is also a shield of the PCB against external interference. Especially com Here, interference from external electromagnetic Fields and disturbances caused by pollution can result into consideration.
Eine weitere vorteilhafte Weiterbildung der Erfin dung zeichnet sich dadurch aus, daß durch die leichte Auswechselbarkeit der Leitelemente verschiedene geo metrische Formen zum Einsatz kommen können, die es ermöglichen, die Schaltpositionen des Schaltelementes so zu variieren, daß die vom Sender oder Empfänger zu durchlaufende Bahn in ihrer Länge verkürzt oder ver längert werden kann. Die Möglichkeit der Veränderung der Bahn erlaubt es, die bei einer Grundkonstruktion jeweils verschiedenen ergonomischen oder konstrukti ven Gegebenheiten oder Anforderungen anpassen zu können.Another advantageous further development of the Erfin manure is characterized in that by the light Interchangeability of the guide elements different geo metric shapes can be used that it enable the switching positions of the switching element to vary so that the sender or receiver too continuous length shortened or ver can be extended. The possibility of change the web allows that with a basic construction different ergonomic or constructive Adapt circumstances or requirements can.
Die Erfindung wird anhand eines Ausführungsbei spieles, das in der Zeichnung dargestellt ist, näher erläu tert.The invention is based on an embodiment game, which is shown in the drawing, explained in more detail tert.
Es zeigen:Show it:
Fig. 1 das Prinzipbild eines Ausführungsbeispieles der Erfindung, Fig. 1 illustrates the principle diagram of an embodiment of the invention,
Fig. 2 den schematischen Feldlinienverlauf in der Nä he eines Leitelementes nach Fig. 1, Fig. 2 shows the schematic field lines in the Nä he a guide element according to Fig. 1,
Fig. 3 das Prinzipbild eines weiteren Ausführungsbei spieles der Erfindung und Fig. 3 shows the schematic diagram of another game Ausführungsbei of the invention and
Fig. 4 einen Schnitt durch ein Anwendungsbeispiel der Erfindung mit dem Prinzip gemäß Fig. 1. Fig. 4 shows a section through an example of application of the invention with the principle of FIG. 1.
Zur Verdeutlichung des bei der Erfindung benutzten Prinzips zeigt die Fig. 1 eine als Schalteinrichtung aus gebildete Einrichtung zur berührungslosen Erfassung von drei Positionen eines als Schalthebel (2) ausgebilde ten Schaltelementes. Der Schalthebel (2) dient z. B. als Gangwähler für ein hilfskraftbetätigtes Getriebe eines Straßenfahrzeuges und ist mittels eines nicht dargestell ten Schalthebelgriffes bewegbar.To illustrate the principle used in the invention, FIG. 1 shows a device formed as a switching device for contactless detection of three positions of a switching element designed as a switching lever ( 2 ). The shift lever ( 2 ) serves z. B. as a gear selector for an auxiliary transmission of a road vehicle and is movable by means of a shift lever handle, not shown.
Der Schalthebel ist an einem Ende mittels eines Ku gelgelenkes (1) drehbar gelagert und innerhalb eines Schwenkbereiches (3) bewegbar. Außer der Mittelposi tion des Schalthebels (2) sollen auch die beiden Endposi tionen (11) und (12) des Schalthebels (2) erfaßt werden. Für diese Positionserfassung ist ein als Permanentma gnet (4) ausgebildeter Sender an dem vom Kugelgelenk (1) abgewandten Ende des Schalthebels (2) angebracht. Den zu erfassenden Positionen des Schalthebels (2) sind als magnetfeldempfindliche Sensoren (8), (9), (10) ausge bildete Empfänger zugeordnet, die auf einer Ebene und zwar auf einer Platine (7) angeordnet sind und immer dann ein Signal abgeben, wenn sie die Nähe des Perma nentmagneten (4) feststellen.The shift lever is rotatably mounted at one end by means of a ball joint ( 1 ) and can be moved within a swivel range ( 3 ). Besides the means posi tion of the shift lever (2) to the two Endposi functions (11) and (12) of the shift lever (2) can be detected. For this position detection, a transmitter designed as permanent magnet ( 4 ) is attached to the end of the shift lever ( 2 ) facing away from the ball joint ( 1 ). The positions of the shift lever ( 2 ) to be detected are assigned as receivers ( 8 ), ( 9 ), ( 10 ) which are formed as magnetic field sensors and are arranged on one level, specifically on a circuit board ( 7 ) and always emit a signal, if you determine the proximity of the permanent magnet ( 4 ).
Die in Fig. 1 dargestellte äquidistante Anordnung der magnetfeldempfindlichen Sensoren (8), (9), (10) ist nicht zwingend und kann je nach konstruktiven Vorgaben oder Layout-Erfordernissen für die Platine variiert wer den. Auf den magnetfeldempfindlichen Sensoren (8), (10) sind Leitelemente (5), (6) für den magnetischen Fluß angebracht. Diese Leitelemente (5), (6) weisen in ihrem oberen Bereich eine Abschrägung auf. Der Permanent magnet (4) beschreibt aufgrund der Kugelgelenklage rung des Schalthebels (2) bei der Betätigung desselben eine sphärische Raumkurve. Diese Raumkurve ergibt in der Projektion gemäß Fig. 1 einen Kreisbahnausschnitt mit einem vorgegebenen Schwenkbereich (3), der durch die Endpositionen (11) und (12) des Schalthebels (2) be grenzt wird. In den Punkten, wo der Permanentmagnet (4) und ein Leitelement (5), (6) jeweils den kürzesten Abstand zueinander haben, verlaufen die Tangenten der Kreisbahn und die Abschrägungen der Leitelemente (5), (6) im wesentlichen parallel zueinander.The equidistant arrangement of the magnetic field sensitive sensors ( 8 ), ( 9 ), ( 10 ) shown in Fig. 1 is not mandatory and can be varied depending on the design specifications or layout requirements for the board. Guide elements ( 5 ), ( 6 ) for the magnetic flux are attached to the magnetic field-sensitive sensors ( 8 ), ( 10 ). These guide elements ( 5 ), ( 6 ) have a bevel in their upper area. The permanent magnet ( 4 ) describes due to the spherical joint position of the shift lever ( 2 ) when actuating the same, a spherical space curve. This space curve results in the projection according to FIG. 1, a circular path section with a predetermined swivel range ( 3 ), which is limited by the end positions ( 11 ) and ( 12 ) of the shift lever ( 2 ) be. At the points where the permanent magnet ( 4 ) and a guide element ( 5 ), ( 6 ) each have the shortest distance from one another, the tangents of the circular path and the bevels of the guide elements ( 5 ), ( 6 ) run essentially parallel to one another.
Für die Endposition (12) ist in Fig. 2 der schematische Feldlinienverlauf des Permanentmagneten (4) wieder gegeben. Diese Anordnung gemäß Fig. 2 stellt gleich zeitig die optimalste Position für die Auslösung eines Schaltvorganges dar. Die Feldlinien treten an der zum Leitelement (6) hin gewandten Seite des Permanentma gneten (4) senkrecht aus und treten nach Durchlaufen eines minimierten Luftspaltes senkrecht in das Leitele ment (6) ein. Das Leitelement (6) wirkt auf die Feldlinien konzentrierend und richtungsbestimmend, so daß der magnetfeldempfindliche Sensor von einem hohen Ma gnetfluß durchsetzt wird. Diese Flußkonzentration bzw. -führung führt zu einem definierten Schaltverhalten des magnetfeldempfindlichen Sensors (8). Der Schaltimpuls des Sensors wird einer nicht dargestellten Auswerte elektronik zugeführt, die sich zum Teil auf der Platine (7) befindet. Die so verarbeiteten Schaltimpulse dienen z. B. zur hilfskraftbetätigten Umschaltung der Übersetzung eines Getriebes.For the end position ( 12 ) in Fig. 2 the schematic field line course of the permanent magnet ( 4 ) is given again. This arrangement according to FIG. 2 represents at the same time the most optimal position for triggering a switching operation. The field lines emerge vertically on the side of the permanent magnet ( 4 ) facing the guide element ( 6 ) and enter vertically after passing through a minimized air gap Introduce element ( 6 ). The guide element ( 6 ) acts on the field lines concentrating and determining the direction, so that the magnetic field sensitive sensor is penetrated by a high magnetic flux. This flux concentration or flow leads to a defined switching behavior of the magnetic field sensitive sensor ( 8 ). The switching pulse of the sensor is supplied to an evaluation electronics, not shown, which is partly on the circuit board ( 7 ). The switching pulses processed in this way serve z. B. for power-operated switching of the transmission ratio.
Analoge Überlegungen gelten für die Endposition (11) gemäß der Darstellung in Fig. 1. Insgesamt gilt für die in Fig. 1 dargestellte Erfassung von drei Positionen, daß für jede Position der Luftspalt, der einen hohen magnetischen Widerstand hat, minimiert wird. Die An ordnung ermöglicht eine Positionserfassung mit gerin ger Schalthysterese.Analogous considerations apply to the end position ( 11 ) as shown in FIG. 1. Overall, for the detection of three positions shown in FIG. 1, the air gap, which has a high magnetic resistance, is minimized for each position. The arrangement enables position detection with low switching hysteresis.
Fig. 3 zeigt ein weiteres Ausführungsbeispiel der Er findung. Im Unterschied zu Fig. 1 weisen die Leitele mente (15), (16) der Fig. 1 eine veränderte Geometrie auf. Da die grundlegende Funktionsweise der Einrich tung gemäß Fig. 3 gegenüber Fig. 1 gleich ist, sind glei che Teile auch mit gleichen Bezugszeichen versehen. Die veränderte Geometrie der Leitelemente (15), (16) ermöglicht, daß durch die Schalthebelpositionen (13), (14) definierten Schwenkbereich (17) gegenüber den Schwenkbereich (3) in Fig. 1 zu verkürzen. Natürlich ist es auch möglich, den Schwenkbereich des Schalthebels (2) zu vergrößern. Unter Beibehaltung des Platinenauf baus und der Kugellagerung des Schalthebels ist es so mit möglich, verschiedene Raumkurven zu durchlaufen, die den unterschiedlichen konstruktiven Anforderungen gerecht werden. Auf diese Weise ist es z. B. möglich, verschiedene Schaltgassen für einen Gangwählhebel vorzugeben. Fig. 3 shows another embodiment of the invention. In contrast to Fig. 1, the Leitele elements ( 15 ), ( 16 ) of Fig. 1 have a changed geometry. Since the basic operation of the body in accor Fig. 3 compared to FIG. 1 is the same, che moving parts are also provided with the same reference numerals. The changed geometry of the guide elements ( 15 ), ( 16 ) enables the pivoting range ( 17 ) defined by the shift lever positions ( 13 ), ( 14 ) to be shortened compared to the pivoting range ( 3 ) in FIG. 1. Of course, it is also possible to increase the swivel range of the shift lever ( 2 ). While maintaining the board structure and the ball bearing of the shift lever, it is possible to run through various room curves that meet the different design requirements. In this way it is e.g. B. possible to specify different shift gates for a gear selector lever.
Fig. 4 zeigt eine Anordnung der Erfindung mit dem Prinzip gemäß Fig. 1 als Gangwähler eines hilfskraftbe tätigten Getriebes. Fig. 4 shows an arrangement of the invention with the principle of FIG. 1 as a gear selector of an auxiliary transmission operated.
Zwischen einer Abdeckhaube (22) des Gangwählers und einem federzentrierten Schalthebel (18) ist ein Gummibalg (21) angeordnet, der in erster Linie den Gangwählerinnenraum vor Verunreinigungen schützt. Der Schalthebel (18) ist mittels eines Kugelgelenkes (23) gelagert. Das Kugelgelenk (23) wird durch einen Auf nahmerahmen (28) in seiner räumlichen Position fixiert. An einem Ende des Schalthebels (18) befindet sich ein Schalthebelgriff (19). Am anderen Ende des Schalthe bels (18) befindet sich ein Permanentmagnet (29), der in einem Aufnahmeteil (20) fixiert ist. Das von dem Perma nentmagneten (29) erzeugte Magnetfeld wird von ma gnetfeldempfindlichen Sensoren detektiert, die als inte grierte Halleffektschalter (32), (34), (36) ausgebildet sind und löst einen Schaltvorgang im Kraftfahrzeuggetriebe aus. Zwischen dem mit dem Per manentmagneten (29) bestückten Ende des Schalthebels (18) und der Platine (30) ist ein Montagekörper (24) angeordnet, der vorzugsweise aus Aluminium-Druck guß hergestellt ist.A rubber bellows ( 21 ) is arranged between a cover ( 22 ) of the gear selector and a spring-centered shift lever ( 18 ), which primarily protects the gear selector interior from contamination. The shift lever ( 18 ) is mounted by means of a ball joint ( 23 ). The ball joint ( 23 ) is fixed in its spatial position by a receiving frame ( 28 ). At one end of the shift lever ( 18 ) there is a shift lever handle ( 19 ). At the other end of the Schalthe lever ( 18 ) is a permanent magnet ( 29 ) which is fixed in a receiving part ( 20 ). The magnetic field generated by the permanent magnet ( 29 ) is detected by magnetic field-sensitive sensors which are designed as integrated Hall effect switches ( 32 ), ( 34 ), ( 36 ) and triggers a switching process in the motor vehicle transmission. Between the one with the permanent magnet ( 29 ) equipped end of the switching lever ( 18 ) and the circuit board ( 30 ), a mounting body ( 24 ) is arranged, which is preferably made of die-cast aluminum.
Der Montagekörper dient als Träger für ferromagne tische Schrauben (31), (33), (35), die die Funktion von magnetischen Leitelementen übernehmen. Der Monta gekörper (24) wird in seinem unteren Bereich von einer Grundplatte (37) verschlossen. Die Grundplatte (37) trägt weitere senkrecht zu ihr angeordnete Platinen (25), (26), die mit weiteren elektronischen Bauelementen bestückt sind, deren schaltungstechnische Verknüpfung der Verarbeitung der Schaltsignale der integrierten Halleffektschalter (32), (34), (36) dient. Die von den Bau teilen auf der Platine (26) erzeugte Betriebswärme wird über Kühlrahmen (27) abgeleitet. Der Anschluß des be schriebenen Gangwählers an die zentrale Kraftfahr zeug-Bord-Elektrik erfolgt über Stecker (38), (39), die in der Grundplatte geführt sind.The mounting body serves as a carrier for ferromagnetic screws ( 31 ), ( 33 ), ( 35 ), which take over the function of magnetic guide elements. The Monta body ( 24 ) is closed in its lower region by a base plate ( 37 ). The base plate ( 37 ) carries further boards ( 25 ), ( 26 ) arranged perpendicular to it, which are equipped with further electronic components, the circuitry of which is used to process the switching signals of the integrated Hall effect switches ( 32 ), ( 34 ), ( 36 ) . The operating heat generated by the construction parts on the board ( 26 ) is derived via cooling frames ( 27 ). The connection of the gear selector to the central motor vehicle on-board electrical system is made via plugs ( 38 ), ( 39 ) which are guided in the base plate.
Eine Betätigung des federzentrierten Schalthebels (18) führt dazu, daß sich das dem Schalthebelgriff (19) gegenüberliegende Ende des Schalthebels (18) und so mit der Permanentmagnet auf einer sphärischen Raum kurve bewegt. Erreicht der Permanentmagnet (29) eine Position, in der der Abstand zwischen dem Permanent magneten (29) und einer ferromagnetischen Schraube (z. B. 33) minimiert ist, so bewirkt die ferromagnetische Schraube (33) eine Konzentration des Magnetfeldes des Permanentmagneten (29). Diese Magnetfeldkonzentra tion bzw. magnetische Flußführung führt unter anderem dazu, daß der integrierte Halleffektschalter (34) defi niert angesteuert wird. Die Magnetfeldkonzentration mittels der ferromagnetischen Schrauben (31), (33), (35) führt dazu, daß die Schalthysterese des Gangwählers so klein wie möglich gehalten wird.An actuation of the spring-centered shift lever ( 18 ) leads to the fact that the end of the shift lever ( 18 ) opposite the shift lever handle ( 19 ) and thus moves with the permanent magnet on a spherical space curve. If the permanent magnet ( 29 ) reaches a position in which the distance between the permanent magnet ( 29 ) and a ferromagnetic screw (z. B. 33 ) is minimized, the ferromagnetic screw ( 33 ) causes a concentration of the magnetic field of the permanent magnet ( 29 ). This magnetic field concentration or magnetic flux guidance leads, among other things, to the fact that the integrated Hall effect switch ( 34 ) is controlled defi ned. The magnetic field concentration by means of the ferromagnetic screws ( 31 ), ( 33 ), ( 35 ) leads to the switching hysteresis of the gear selector being kept as small as possible.
Claims (9)
- a) der vom Schaltelement (2) bewegbare Sen der (4) bzw. Empfänger wird auf einer ge krümmten Fläche bewegt;
- a) die den zu erfassenden Positionen zugeord neten Empfänger (8), (9), (10) bzw. Sender sind auf einer Ebene angeordnet;
- b) zwischen dem vom Schaltelement (2) be wegbaren und sich in einer zu erfassenden Po sition befindlichen Sender (4) bzw. Empfänger und dem zugeordneten Empfänger (8), (9), (10) bzw. Sender sind Leitelemente (5), (6) für ma gnetischen Fluß angeordnet.
- a) of the switching element ( 2 ) movable Sen ( 4 ) or receiver is moved on a curved surface ge;
- a) the receivers ( 8 ), ( 9 ), ( 10 ) or transmitters assigned to the positions to be detected are arranged on one level;
- b) between the switchable from the switching element ( 2 ) and located in a position to be detected transmitter ( 4 ) or receiver and the assigned receiver ( 8 ), ( 9 ), ( 10 ) or transmitter are guide elements ( 5 ) , ( 6 ) arranged for magnetic flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19914108388 DE4108388C2 (en) | 1991-03-15 | 1991-03-15 | Device for contactless detection of at least two positions of a switching element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19914108388 DE4108388C2 (en) | 1991-03-15 | 1991-03-15 | Device for contactless detection of at least two positions of a switching element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE4108388A1 DE4108388A1 (en) | 1992-09-17 |
| DE4108388C2 true DE4108388C2 (en) | 2000-10-12 |
Family
ID=6427346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19914108388 Expired - Lifetime DE4108388C2 (en) | 1991-03-15 | 1991-03-15 | Device for contactless detection of at least two positions of a switching element |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE4108388C2 (en) |
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| DE10215727A1 (en) * | 2001-11-07 | 2003-05-15 | Valeo Schalter & Sensoren Gmbh | Magnetic actuator for a camshaft adjuster |
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| DE10215727A1 (en) * | 2001-11-07 | 2003-05-15 | Valeo Schalter & Sensoren Gmbh | Magnetic actuator for a camshaft adjuster |
Also Published As
| Publication number | Publication date |
|---|---|
| DE4108388A1 (en) | 1992-09-17 |
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| OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
| 8127 | New person/name/address of the applicant |
Owner name: WABCO GMBH, 30453 HANNOVER, DE |
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| 8110 | Request for examination paragraph 44 | ||
| 8127 | New person/name/address of the applicant |
Owner name: WABCO GMBH & CO. OHG, 30453 HANNOVER, DE |
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| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8320 | Willingness to grant licenses declared (paragraph 23) | ||
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Owner name: WABCO GMBH, 30453 HANNOVER, DE |
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| R071 | Expiry of right |