DE102006036696A1 - sensor arrangement - Google Patents

Abstract

The invention relates to a sensor arrangement (31) for determining positions of at least one transmission component (34), the sensor arrangement (31) with at least one sensor system (2, 20) and at least one sensing pin (4, 35) of the lifting component in a first housing ( 10), wherein an out of the housing (10) projecting end of the Abtastbolzens (4, 35) liftable against at least one of the transmission component (34) associated Ablaufbahn (36) is elastically biased and the sensor (2, 20) at least one Pulse generator (18, 25, 39, 46) on a carrier (24, 27, 38, 47) and at least one with the pulse generator (18, 25, 39, 46) in non-contact operative connection sensor (13, 21, 41, 45 ) having.

Description

Field of the invention

The The invention relates to a sensor arrangement for determining positions at least one transmission component, the sensor arrangement with at least a sensor and with at least one sensing pin of the hubbeweglichen stored in a first housing is, with one out of the case projecting end of the Abtastbolzenens liftable against at least one associated with the transmission component runway elastically biased is and wherein the sensor at least one encoder to a carrier and at least one with the pulse generator in non-contact operative connection has standing sensor.

Background of the invention

EP 13 50 991 B1 shows such sensor arrangement with the switching positions of a shift drum formed as a transmission component can be detected. The proximity sensor is described as Hall sensor not described in detail.

Summary of the invention

The The object of the invention is to provide a sensor arrangement with simple means robust and inexpensive to produce.

These The object is solved according to the subject of claim 1.

Under Pulse generators are all signaling devices that are permanent or temporary Deliver signals of constant or alternating sequence that are appropriate are by one or more contactless to the pulse generator or to the signal source arranged sensors to be detected and the For example, emit light signals, sound waves or magnetic pulses. examples for permanent encoders are permanent magnets, e.g. alternating or with each other opposite polarization. Non-contact is the contactless Detecting the signals emitted by the signal generator by one or more Sensors that are thus contactless to understand the signal generator / pulse generator, the sensors of the pulse generator (s) e.g. separated by a gas or liquid gap of this this opposite lie. In this case, contact between the carrier of the pulse generator and the Sensor not excluded as long as not the sensor touched with the signal generator.

Of the Scanning pin is resiliently biased against the runway. The runway is determined by position data of dialing and switching positions and by position data of the contour of the process path between the dialing and switch positions described. The contour of the process path points Gradient, Slopes, depressions, peaks, plateaus, etc., which are characterized by let the position data be described. Concrete positions of the Transmission component, the neutral positions, select and switch positions are reproduced assigned characteristic position data. Specific positions For example, the neutral positions are "normal" and possibly more neutral positions for mapping reference values as well as the concrete positions the forward gears or the Reverse gear. Individual concrete switch positions usually have the respective same repeatable characteristic position data, alternatively also changing position data, on.

The characteristic position data are according to a specific scheme by a chain between positional data juxtaposed connected to each other, leading the way for the scanning device to define the process path from one position to another. The scheme is characterized by a two- or three-dimensional structure Depressions and elevations on the surface predetermined the runway. The different depressions and elevations the surface the runways are ascending or descending ramps connected to a ramp contour leading to the chain of any number juxtaposed and seamless linked position data are strung together. The position data are thus one-dimensional or two-dimensional in the simple form Coordinates or distances, the height differences the surface to reproduce defined reference planes or reference lines of the process path, to which the sensing pin reacts with corresponding longitudinal strokes.

The Sensor technology of the scanning device is at least one reference value set. This reference value is a "zero position" in the pulse generator (s) on the sensing pin in a defined position to the proximity sensor (s) see / stand. This position provides a reference value for the measurement the position data. The reference position is for example the Neutral position or a position between two adjacent aisles, the a reference position of the encoder is assigned to the sensor.

If the sensing pin away from this reference position on the scanning path driving along the sensing pin becomes this due to the height differences from the reference value to remove certain strokes or finally this at certain strokes approach again. The coupled to the sensing pin (s) pulse thus become Positions deviating from the reference position to the proximity sensor (s) taking.

Everyone the positions of the transmission component is thus a certain stroke assigned to the Abtastbolzens. The respective stroke of the Abtastbolzen is a position of one or more pulse to the proximity sensor assigned. Starting from the reference position, which is the pulse generator have taken at the reference position of the Abtastbolzenens, these are ever according to the position of the gearbox component compared to the reference position equally close or closer to the proximity sensor (s) or further away from this. It is also conceivable that every characteristic Position another sensor or another pulse generator same in the same or different design is assigned to the previous one.

The previous versions Consequently, each of the dialing or switching position of the transmission component a certain longitudinal stroke of the Abtastbolzens assigned. The signal corresponding to the stroke is transmitted to the sensor and evaluation in an information about the position of the transmission component transformed. The signal is sent to the on-board electronics, for example for control of operating and driving conditions forwarded or in one Display as dialing or gear position is displayed.

Everyone Dial or Switch position is a certain height level of the ramp contour associated with the runway. In the simple case, each of the positions another height assigned so that each of the different dialing or Switching position another stroke of the Abtastbolzen and thus the signal is assigned from another position of the encoder to the sensor.

alternative or at the same time, each selector or switch position is one defined order of position data associated with the sensing element when changing from one gear to another on a predetermined path always travels on the runway. In this case, the height level can be the Ramp contour and thus the stroke for several dialing or switching positions of a transmission even be the same. The actual Position of the transmission component is then assigned not only to the hub, but a defined set of reproducible position data, the in repeatable and defined order from the scanner when changing to the respective position must be forcibly passed through and which are recorded and evaluated accordingly by the sensors.

wells on the surface the process path are also designed as latching depressions in the the scanning pin of the scanning unit with the tip locks and For example, the transmission component is locked in the switching positions. These locking positions is also a corresponding stroke or associated with a defined measurement quantity of position data.

position data are different diameters or radial strokes of circumferentially extending raceways, which are scanned radially and thus in radially directed Long strokes of the Abtastbolts result. Furthermore give certain reproducible orders, with which position data is sampled or be detected, the rotation or pivoting direction or the change the rotation and pivoting direction again. The change in diameter or Radial depths in this case is a change in the swivel angle assigned to the transmission component. The runway runs in the circumferential direction on a perimeter. The change of Position data is changed the diameter or the radial distance to the axis of rotation or detected to the pivot axis of the transmission component in this one plane. The sensing pin is radially movable in the direction of the rotation or pivot axis and alternatively perpendicular to the longitudinal axis a longitudinally movable Directed gearbox component. The relative axial position of the Abtastbolzens for Runway is fixed.

position data are, simultaneously or alternatively to the aforementioned variant, the Depths and heights of axial depressions and elevations in different planes of an axial or longitudinal direction scanned and thus uneven in the axial direction runway. Of the Scanning is in this case axially and thus with the rotation, Swivel or longitudinal axis Equally aligned liftable. The relative radial distance of the Abtastbolts to the rotation, pivot axis or longitudinal axis is constant. amendments the position data are changed the axial stroke of the Abtastbolzenens. Position data, different axial distances or axial depths of the runway, are in the axial direction of sampled the scanning and result in different Long strokes of the Abtastbolzens. The sensing pin can simultaneously scan a runway or independent of which for measuring displacements of the transmission component in his longitudinal directions be used.

Positional data are alternatively, or simultaneously with the aforementioned variants, the diameter or radial distances of any desired quantities of axially adjacent circumferential lines, which are scanned in succession in axial sequence. The process path in this case runs in the longitudinal direction - that is perpendicular to the radial direction. In this case, either the sensing pin in an axially fixed position to the axially movable transmission component or the sensing pin is axially movable to axially fixed or axially movable transmission component. The sensing pin is aligned radially to the rotation or pivot axis or perpendicular to the longitudinal axis and the stroke of the bolt is thus radial.

position data are all possible combinations the previous embodiments of the invention. It is conceivable that Use of sensing pins to the rotation axis or pivot axis inclined strokes To run. It is also conceivable that the scanning devices with sensing pins are not relatively fixed axially or radially, but that this independently Movably arranged by the stroke in the axial and or radial direction are and a drainage path along a pivoting or rotating and or axially movable transmission component scan. It is conceivable also the use of several rectified or even movable or directed in different directions or different movable scanning devices in a switching device.

The Runways are preferably with non-cutting shaping method, in particular by cold forming in sheets or in the transmission component or in components that are synchronously movable with the transmission component are coupled introduced. Also conceivable is the training of Locking and / or slide contours by machining processes.

The Sensor unit except the process path the sensors and at least the scanning device on. The scanning device consists of at least one sensing pin. The drain bolt is longitudinally movable in a housing stored. At least one spring is in the same longitudinal direction supported in the or in a further housing and at least at tension Operation of the scanner the bolt against the runway. Of the Scanning is, for example, hollow inside and performs a part of this Case designed as a compression spring spring. Alternatively, the drain bolt made of solid material and will be outside For example, partially surrounded by a coil spring. The summit the Abtastbolzen is for the Contact with the runway rounded or provided with a ball. The ball rotatably received in a dome around its own center is optionally ball-bearing in the dome.

The relative displacement, that is the change of the stroke is measured with a suitable non-contact sensor. Under contactless Sensors are all the pulser - to understand sensor arrangements, in which the communication of the pulser with the corresponding Sensor over liquid or gas column, in the preferred embodiment via air gaps, so without direct contact between possible for these two elements is. Examples are optical measuring devices or measuring devices with magnetic fields.

The Sensor has at least one carrier for pulse generator and at least a sensor on. The carrier is at least then activated by the sensing bolt when the Position data to be detected and is preferably a rod. The carrier is preferably coaxial with the sensing pin in the same longitudinal direction in a housing stored. The housing is the same case, in which also the sensing pin longitudinally movable is, or is, as an embodiment of the invention provides separate housing made of plastic. Between the sensing pin is either permanent or at times in the longitudinal direction Contact. Alternatively, between sensing and carrier a permanent transmission device or as needed connection arranged.

Of the carrier is either attached to the sensing bolt or guided on this or is due to the action of a spring on this.

A Another embodiment of the invention provides a sensor, in the magnetic means are used. The recording or evaluation The information in this case is preferably one or Several Hall-element sensors are provided. The carrier is the carrier of the / the pulse or the so-called targets from which the impulses for the sensors emanate. magnetic Means are permanent magnets or temporary exciters such as coils.

• a.) Ein Sensor oder mehrerer werden mit einem Magnetfeld eines oder mehrerer magnetischer Impulsgeber beaufschlagt. Das Magnetfeld bestimmter Stärke wird von einem oder mehr Magneten hervorgerufen, der/die an dem Träger befestigt sind. Der Träger trägt die Magnete an vorbestimmten Stellen. Die vorbestimmten Stellen entsprechen den zu signalisierenden Schalt- oder Wählstellungen bei einem bestimmten Hub des Abtastbolzens. Die auf den Sensor wirkende Magnetfeldstärke der Magnete nimmt gerichtet in eine Richtung zu, wenn sich der vorgesehene Hub ausgeführt wird. Der jeweilige Sensor
• – reagiert entweder erst, wenn die Feldstärke einen Wert erreicht hat, der der maximalen Feldstärke oder mehr entspricht, die das Magnetfeld aufweist wenn der Impulsgeber und der Sensor bei erreichen des vorgesehenen Hubs zueinander ausgerichtet sind und schaltet ab, wenn diese Stellung verlassen wird, oder
• – erfasst das Magnetfeld auch schon bei Einleitung des Hubs und somit ein Magnetfeld mit Feldstärke, die solange zu oder abnimmt bis der Impulsgeber und der Sensor in vorbestimmter Stellung zueinander ausgerichtet sind.
• b.) Ein oder mehrere Sensoren werden mit einem Magnetfeld beaufschlagt, dass durch einen oder mehrere ferromagnetische Impulsgeber geschwächt ist.
• – Ein oder mehrere ferromagnetische Impulsgeber sind an dem Träger fest oder
• – der Träger ist zumindest partiell selbst aus ferromagnetischen Material und weist an Stellen, die charakteristischen Hüben entsprechen, Strukturerhebungen und/oder -Vertiefungen wie Vorsprünge oder Vertiefungen auf ein oder mehrere Magnete sind mit einem festgelegten unveränderlichen Abstand zu einem oder mehren Sensoren in einer Einheit in der Nähe des beweglichen Trägers angeordnet. Die Stellen, an denen das das ferromagnetische Material am Träger befestigt ist oder die Stellen des ferromagnetischen Trägers die durch die vorgenannten Strukturerhebungen und/oder -Vertiefungen unterbrochen sind, entsprechen Schalt- oder Wählpositionen. Durch die Bewegungen des ferromagnetischen Materials und der Strukturerhebungen/Vertiefungen bei Hüben in die Feldlinien des Magneten werden definierte Schwächungen des betreffenden Magnetfeldes hervorgerufen und vom Sensor erfasst.
• c.) Ein oder mehrere Magnete sind in der Sensorik mit einem festgelegten unveränderlichen Abstand zu einem oder mehreren Sensoren so angeordnet, dass die Feldstärke durch die Sensoren erfasst wird. Der oder die Magnete sind gleichzeitig auch mit einem festgelegten Abstand zu dem Träger aber nicht an dem Träger so angeordnet, dass die Impulsgeber am Träger bei Hubbewegungen des Abtastelements das jeweilige Magnetfeld schneiden oder in dessen Einfluss bewegt werden. Die Impulsgeber sind Strukturerhebungen und/oder -Vertiefungen (Schlitze oder Erhebungen) an der Oberfläche des nicht ferromagnetischen Trägers. Die Lage der Strukturerhebungen und/oder -Vertiefungen ist durch charakteristische Wähl- oder Schaltstellungen bestimmt. Die durch die Schlitze oder Erhebungen hervorgerufenen Änderungen des Magnetfeldes werden vom Sensor erfasst.
• d.) Anordnung eines Magneten und eines oder mehr Sensoren pro Sensorik;
• e.) Anordnung eines oder mehrerer Magnete und eines Sensors pro Sensorik;
• f.) Anordnung von mindestens zwei Impulsgebern und wenigstens zwei Sensoren in einer Sensorik
• g.) Skalenartig aneinander gereihte Magnete, Magnetisierungsmuster usw. gleicher oder entgegengesetzter Polarisation nach einem vorbestimmten Muster wie:
• – axial spiralförmig um den Träger gelegte und aufeinander folgende Magnetfelder unterschiedlicher Polarisation
• – ringartige Magnetfelder gleicher axialer Abmessung und Feldstärke sind mit abwechselnder Polarisation axial direkt zu einander benachbart oder zueinander beabstandet angeordnet
• – axial zueinander benachbarte Magnete abwechselnde Polarisation deren Länge sich voneinander unterscheidet – die Länge nimmt zum Beispiel von Feld zu Feld in eine axiale Richtung zu (linear oder progressiv) oder die benachbarten Magnetfelder in Gruppen von Feldern, die in periodischer Reihenfolge wiederkehren weisen unterschiedliche Abmessungen in axiale Richtung auf
• h.) achsparallele Anordnung von zwei Strängen von Magnetfeldern wechselnder Polarität, von denen entweder die Stränge zueinander gleiche Magnetisierungsmuster aufweisen oder von Strängen deren Magnetisierungsmuster sich voneinander unterscheiden.

The following arrangements are alternatively provided:

• a.) A sensor or more are subjected to a magnetic field of one or more magnetic pulse generator. The magnetic field of certain strength is caused by one or more magnets attached to the carrier. The carrier carries the magnets at predetermined locations. The predetermined locations correspond to the switching or dialing positions to be signaled at a certain stroke of the sensing pin. The magnetic field strength of the magnets acting on the sensor increases in a direction when the intended stroke is executed. The respective sensor
• - reacts only when the field strength has reached a value corresponding to the maximum field strength or more, which has the magnetic field when the pulse generator and the sensor are aligned with each other when the intended stroke is reached and shuts off when this position is left, or
• - Detects the magnetic field even at the initiation of the stroke and thus a magnetic field with field strength, which increases or decreases until the pulse generator and the sensor are aligned in a predetermined position to each other.
• b.) One or more sensors are subjected to a magnetic field that is weakened by one or more ferromagnetic pulse generator.
• - One or more ferromagnetic pulse generator are fixed to the carrier or
• The support is at least partially made of ferromagnetic material itself and has at locations corresponding to characteristic strokes, structure elevations and / or recesses such as projections or recesses on one or more magnets are fixed at a fixed distance to one or more sensors in a unit in arranged near the movable carrier. The locations where the ferromagnetic material is affixed to the carrier or the locations of the ferromagnetic carrier which are interrupted by the aforementioned structure elevations and / or depressions correspond to switching or selection positions. By the movements of the ferromagnetic material and the structure elevations / depressions at strokes in the field lines of the magnet defined weakenings of the relevant magnetic field are caused and detected by the sensor.
• c.) One or more magnets are arranged in the sensor with a fixed fixed distance to one or more sensors so that the field strength is detected by the sensors. The magnet (s) are at the same time also arranged at a fixed distance from the carrier but not at the carrier such that the pulse generators on the carrier during stroke movements of the scanning element cut the respective magnetic field or are moved into its influence. The impulses are structure elevations and / or recesses (slots or protrusions) on the surface of the non-ferromagnetic carrier. The position of the structure elevations and / or depressions is determined by characteristic selection or switching positions. The magnetic field changes caused by the slots or bumps are detected by the sensor.
• d.) arrangement of a magnet and one or more sensors per sensor;
• e.) Arrangement of one or more magnets and one sensor per sensor;
• f.) Arrangement of at least two pulse generators and at least two sensors in a sensor system
• g.) Magnets arranged like a scale, magnetization patterns, etc. of equal or opposite polarization according to a predetermined pattern such as:
• - Axially spirally placed around the carrier and successive magnetic fields of different polarization
• - Ring-like magnetic fields of the same axial dimension and field strength are arranged with alternating polarization axially adjacent to each other or spaced from each other
• - axially adjacent magnets alternating polarization whose length is different from each other - the length increases, for example, from field to field in an axial direction (linear or progressive) or the adjacent magnetic fields in groups of fields that recur in periodic order have different dimensions axial direction
• h.) axially parallel arrangement of two strands of magnetic fields of alternating polarity, of which either the strands have the same magnetization patterns to one another or strands whose magnetization patterns differ from one another.

structural surveys and / or depressions such as slots, in particular passage slots or holes or surveys on the carrier are also for Photoelectronic sensor provided.

magnets are permanent magnets or electromagnets. The carrier is depending on the application of ferromagnetic or non-ferromagnetic Metals or non-metals. The use of plastic for the wearer and also for the case of the Sensor technology is provided. The plastic of the carrier and also of the housing can be at least partially interspersed with magnetizable particles, which are magnetized according to various patterns. The case of the Sensor is optionally snapped onto the housing of the scanner or pressed or screwed with this. The case of the Sensors can be disassembled but also poured out and take optionally also further evaluation electronics, power supply, connecting cables and plug-in elements. The housing can also screw thread or other fasteners for attachment have on the transmission and be provided with sealing elements.

The Scanning device is, as an embodiment of the invention provides at the same time a locking device for releasably locking transmission components in predetermined switch positions. The sensing pin, the same time may be the locking pin, is optionally slidable in its housing or rolling stock. One or more springs are coil springs and / or cup springs per sample / locking device. With the invention is a device to Mehrbe range measurement of switching and dial positions created, the simple, robust and cost-effective can be produced.

Description of the drawings

1 shows a scanner 1 with sensors 2 as a structural unit 3 in an overall view. In 2 is the building unit 3 shown in a full section. In 2a is another unit 19 shown in full section, their structure with the exception of a differently designed sensor 20 the building unit 19 equivalent. The scanning device 1 indicates egg nen sensing pin 4 made of metal. The sensing pin 4 is from a shaft 5 and from a dome 6 educated. The summit 7 the scanning bolt 4 is a ball 8th by means of further balls 9 in the dome 6 is stored on roller bearings.

The sensing pin 4 is by means of a rolling bearing 11 in a housing 10 (first housing) made of metal in the directions of the double arrow liftable mounted and guided. The shaft 5 is with a blind hole 29 provided in which a spring 12 is received in the form of a coil spring. The feather 12 is biased in the directions of the double arrow and thereby to the sensing pin 4 opposite to the housing 10 supported.

The housing 10 has an external thread 10a and a hexagon 10b for a screw fastening of the unit 3 in an unillustrated hole with internal thread on. It is also conceivable that the housing is a simple sleeve made of sheet metal, which sits with a press fit in a corresponding hole of a transmission housing.

The sensors 2 has at least one sensor 13 and further electronic components not further described an evaluation 14 on. The sensor 13 and the transmitter 14 are in a housing 15 (second housing) mounted or potted in this. The housing 15 is either plastic or metal. The sensors 2 also has an interface to the vehicle in the form of plug contacts 16 on. The sensors 20 has a sensor 21 on that in a shaft 22 of the housing 15 is integrated.

The housing 15 with sensors 2 or 20 is on the case 10 the scanner 1 placed and held by means of a snap, adhesive or plug connection, not further described. The housing 15 and 10 are by means of a seal 17 sealed against each other.

The sensor 13 is on one or more magnetic pulse generators 18 , for example, on a magnet ( 50 ), directed at one end 23 a carrier 24 are made of plastic. The magnet ( 50 ), for example, is a permanent magnet.

A pulse generator 25 is annular and sits at the end 26 a carrier 27 made of metal in the unit 19 , A sensor 21 is annular and surrounds contactlessly the pulse generator 25 , is directed to this and with an unspecified evaluation 28 connected.

The shaft 5 the scanning bolt 4 is, as already mentioned, with a blind hole 29 Mistake. The blind hole 29 is a recording for the respective wearer 24 or 27 , The carriers 24 and 27 each have a mushroom-shaped end 30 on, against which the spring 12 is biased so that each of the carriers 24 and 27 and thus the respective pulse generator 18 respectively. 25 exactly to the sensing pin 4 is positioned.

As is apparent from the foregoing description, both structural units 3 and 19 the same scanner 1 and the same housing 15 for the sensors 13 respectively. 20 on. This modular principle makes it possible to economically produce larger quantities of identical parts due to the reduced number of parts, reduces tooling and production costs as well as warehousing and transport. The components are interchangeable. For example, the sensor system of a structural unit placed on a gearbox can be replaced in the event of a repair without the need for disassembling the scanning device.

It is also conceivable, the scanning characteristic of the scanning device 1 , such as the stroke or the bias of the Abtastbolzens 4 to adapt application-specific with simple means. This can only be the spring 12 be replaced by another spring with a modified spring characteristic.

Conceivable is also that in a transmission several essentially the same Sensor arrangements are used, the sensors to each other Deviating requirements for different installation locations of the gearbox is adjusted. So can on a scanning unit in one place in the transmission a simple contactless designed according to the invention proximity switch to indicate the reverse position or for switching the reversing light be mounted. Elsewhere, you can access another scanning unit same structure or on a scanning unit otherwise same However, with other spring structure a complex according to the invention trained sensors mounted to determine switching positions be. It is conceivable that the latter sensor in the same type of sensor housing, which also for the recording of the reverse switch is provided or integrated into another type.

The 3 and 4 show the application of a sensor arrangement 31 , whose scanning device 32 in different stroke positions of the Abtastbolzen 35 against a ramp contour 33 a pivotable transmission component 34 is biased. With the 3a respectively. 4a are shown with a simple schematic representation of the different strokes, the sensing pin 35 compared to a reference position. The reference position is the diameter D or the radius R of the process path 36 to the pivot axis 37 of the transmission component 34 at which the sensing pin 35 is applied. The Trä ger 38 the pulse generator 39 is an extension of the Abtastbolzen 35 , In the case 40 is at least one sensor 41 integrated.

In the starting position to 3 . 3a is the bolt with the stroke H = 0 against the runway 36 biased. If the transmission component 34 is pivoted in the arrow direction, the sensing pin increases 35 at the ramp contour 33 on. The pulse generator is approaching 39 the sensor 41 until the top 42 the scanning bolt 35 on the peak 43 the ramp contour 33 stands. In the illustrations after 4 and 4a has the sensing pin 35 from R to the peak 43 moved back along the stroke H. The pulse generator 39 is the sensor 41 at an air gap opposite and in the magnetic field 44 the pulse generator 39 ,

The 5 to 9 describe embodiments of the arrangements a.) to h.) of the preceding chapter "Summary of the Invention".

5 shows an embodiment of an arrangement according to a.). A sensor 45 is using a magnetic field of a pulse generator 46 applied. The pulse generator 46 is on a carrier 47 firmly. The carrier 47 is fixed to a sensing pin, not shown, and thus follows its strokes. The magnetic field of certain strength is caused by one or more magnets, the / to the pulse generator 46 form. The carrier 47 carries the pulse generator 46 at a predetermined location, which corresponds to a switching or dialing positions to be signaled at a certain stroke of the Abtastbolzens. The magnetic field strength of the magnets acting on the sensor increases directionally in a direction when the pulse generator 46 on the sensor 45 is supplied. Depending on the design of the sensor, the sensor responds 45 either only when the field strength has reached a value equal to the maximum field strength or more, and turns off when that position is exited, or the sensor 45 detects the magnetic field even at the initiation of the stroke and thus a magnetic field with field strength that increases or decreases until the pulse generator 46 and the sensor 45 are aligned in a predetermined position to each other and the sensor is exposed to the maximum field strength.

6 shows an embodiment of the invention with a pulse generator 46 an arrangement as described under g.) in the chapter "Summary of the invention" 46 has in this case axially helically around the carrier 47 placed and successive magnetic fields of a magnet 50 on, the stroke-dependent contactless to the sensor 45 passed who the. 7 In contrast, on the other hand, shows a pulse generator 46 , with ring-like magnetic fields of alternating polarization of a magnet 50 , which have the same axial dimensions and the stroke-dependent contactless on the sensor 45 be passed.

8th shows an embodiment with which an arrangement according to b.) But also after c.) Can be realized.

Embodiment with arrangement according to b.) - The sensor 45 is using a magnetic field of a magnet 50 acted upon by the ferromagnetically trained pulse generator 46 is weakened. The pulse generator 46 is on the carrier 47 solid or the carrier 47 is at least partially itself of ferromagnetic material and has at structural points corresponding to characteristic strokes, structural depressions 49 on. The magnet 50 is not on the carrier 47 attached but with a fixed fixed distance to the sensor 45 arranged in the vicinity of the movable carrier. The places where the ferromagnetic material on the carrier 47 is attached or the locations of the ferromagnetic carrier 47 through the aforementioned structure depressions 49 are interrupted, correspond to switching or dialing positions. By the movements of the ferromagnetic material and the structure elevations / depressions at strokes in the field lines of the magnet 50 Defined weakening of the relevant magnetic field is caused and by the sensor 45 detected.

Embodiment with arrangement according to c.) - One or more magnets 50 are in the sensor with a fixed fixed distance to the sensor 45 arranged so that the field strength through the sensor 45 is detected. The magnet 50 is at the same time with a fixed distance to the carrier 47 but not on the carrier 47 arranged. pulse 46 are structural depressions 49 (Slots or protrusions) on the surface of the non-ferromagnetic carrier 47 which cut the magnetic field during strokes or are moved into its influence. The location of the structural depressions 49 is determined by characteristic selector or switch positions.

The through the structure depressions 49 caused changes in the magnetic field are from the sensor 45 detected.

Arrangements with two or more of the sensors and / or with two or more of the pulse generators are also conceivable according to the example of the previously described arrangements. 9 For example, Figure 2 shows a sensor system for embodiments with arrangements according to Figure 2b.) and Figure 2c.) with two of the sensors 45 and two of the magnets 50 the respective structural surveys 48 different axial length of the pulse generator 46 on the carrier 47 are opposite.

1

scanning

2

sensors

3

unit

4

feeler

5

shaft

6

dome

7

top

8th

Bullet

9

Bullet

10

first casing

 10a

external thread

10b

hexagon

11

roller bearing

12

feather

13

sensor

14

evaluation

15

second casing

16

plug contacts

17

poetry

18

pulse

19

unit

20

sensors

21

sensor

22

shaft

23

The End

24

carrier

25

pulse

26

The End

27

carrier

28

evaluation

29

blind

30

The End

31

sensor arrangement

32

scanning

33

ramp contour

34

transmission component

35

feeler

36

slipway

37

swivel axis

38

carrier

39

pulse

40

casing

41

sensor

42

top

43

peak

44

magnetic field

45

sensor

46

pulse

47

carrier

48

structural surveys

49

structure wells

50

magnet

Claims (7)

Sensor arrangement ( 31 ) for determining positions of at least one transmission component ( 34 ), the sensor arrangement ( 31 ) with at least one sensor ( 2 . 20 ) and with at least one sensing bolt ( 4 . 35 ) of the liftable in a first housing ( 10 ), wherein one of the housing ( 10 ) projecting end of the Abtastbolzens ( 4 . 35 ) liftable against at least one of the transmission component ( 34 ) associated process path ( 36 ) is elastically pretensionable and wherein the sensor system ( 2 . 20 ) at least one pulse generator ( 18 . 25 , 39 . 46 ) on a support ( 24 . 27 . 38 . 47 ) and at least one with the pulse generator ( 18 . 25 . 39 . 46 ) in contactlessly connected sensor ( 13 . 21 . 41 . 45 ), wherein the carrier ( 24 . 27 . 38 . 47 ) at least temporarily with the sensing bolt ( 4 . 35 ) is liftable and at least the sensor ( 13 . 21 . 41 . 45 ) in a second housing ( 15 ) and the second housing ( 15 ) on the first housing ( 10 ) and the carrier ( 24 . 27 . 38 . 47 ) from the first housing ( 10 ) in the second housing ( 15 protrudes. Sensor arrangement according to claim 1, in which the second housing ( 15 ) is at least partially made of a plastic. Sensor arrangement according to claim 1, in which the pulse generator comprises at least one magnet ( 50 ) on the carrier ( 24 . 47 ). Sensor arrangement according to Claim 1, in which the pulse generator ( 46 ) is at least partially made of ferromagnetic material. Sensor arrangement according to Claim 1, in which the pulse generator ( 46 ) at least one structural survey projecting from the support ( 48 ). Sensor arrangement according to Claim 1, in which the pulse generator ( 46 ) at least one structural recess ( 49 ) in a surface. Sensor arrangement according to claim 1, in which in the second housing ( 15 ) at least one magnet ( 50 ) with at least one sensor ( 45 ) and from the impulse generator ( 46 ) influenced magnetic field is integrated.