Classifications

• • 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
  • G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
  • G01D11/24—Housings ; Casings for instruments
• • 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
  • G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
  • G01D11/24—Housings ; Casings for instruments
  • G01D11/245—Housings for sensors
• • 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
  • F16H59/08—Range selector apparatus
  • F16H59/10—Range selector apparatus comprising levers
  • F16H59/105—Range selector apparatus comprising levers consisting of electrical switches or sensors
• • 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
  • F16H59/68—Inputs being a function of gearing status
  • F16H59/70—Inputs being a function of gearing status dependent on the ratio established
• • 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
  • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
  • F16H61/0003—Arrangement or mounting of elements of the control apparatus, e.g. valve assemblies or snapfittings of valves; Arrangements of the control unit on or in the transmission gearbox
  • F16H61/0006—Electronic control units for transmission control, e.g. connectors, casings or circuit boards
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
  • G01C1/00—Measuring angles
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
  • G01C22/00—Measuring distance traversed on the ground by vehicles, persons, animals or other moving solid bodies, e.g. using odometers, using pedometers
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
  • G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T29/00—Metal working
  • Y10T29/49—Method of mechanical manufacture
  • Y10T29/49002—Electrical device making
  • Y10T29/49007—Indicating transducer

Definitions

• the sensor carrier structure comprises at least one base housing and at least one sensor carrier module manufactured separately therefrom.
• the sensor carrier module is made of cast-compatible material and mechanically fastened to the base housing of the sensor carrier assembly.
• the sensors are installed integrated in electronic modules.
• ATF Automatic Transmission Fluid
• a linear position detection can be done on the basis of Hall switches, for example.
• four digital Hall switches are used, which are arranged on a printed circuit board such that they detect the magnetic coding of a linearly displaceable multipolar permanent magnet.
• a magnet carriage is coupled to the linearly operated selector slide, a hydraulic slide in the transmission control plate or a parking lock cylinder.
• resistors for displaying diagnostic functions and E MV capacitors are located on the printed circuit board.
• the sensor electronics are protected from the influences of the transmission oil by a dense, oil-resistant epoxy resin encapsulation.
• a dense, oil-resistant epoxy resin encapsulation In an automatic transmission with manual
• the position sensor detects the positions of the selector slide P, R, N, D, 4, 3, 2 and the intermediate areas. These are output in the form of a 4-bit code to the transmission control.
• the coding of the position position is carried out in one step, i. it is always a bit change required to recognize a new position. Simple bit changes caused by malfunction can be recognized as incorrect by the control unit by means of a plausibility check.
• the structure of such position sensors for transmission control is from the publication "Sensors in the motor vehicle", Robert Bosch GmbH, Edition 2007, automotive engineering, electrical and electronics for motor vehicles, ISBN-10 3-7782- 2031-4, pages 136-
• the encapsulation made of PA is designed as precisely this captive securing device.
• ATF Automatic Transmission Fluid
• the PA encapsulation ensures electrical insulation from one another, which in particular excludes short circuits due to impurities in the surrounding medium. This is certainly the case with the ATF, since the transmission fluid is subject to metallic abrasion of moving components, such as gears and gears
• a guide housing which is used on the position sensor proposed according to the invention, can be at the
• the latching hook is an integral part of PA encapsulation and therefore does not constitute a separate component, so that it can likewise be saved in the production costs of the position sensor proposed in accordance with the invention in a manner which has a favorable influence on the production costs.
• the captive which is designed in particular as a latching hook, limited in a particularly advantageous manner, the lateral travel of a magneti- see component, such as a magnetized or magnetic properties having magnetic slide.
• the magnet slide is guided on the side facing away from the construction and connection technology side of the guide housing in guide rails or in guide ribs in the lateral direction movable. Since the captive, in particular the latching hook, passes through an opening of the guide housing after assembly of PA overmolding, the hook-shaped projection of the captive protrude into the plane of movement of the magnetic or magnetized component and limits its lateral travel.
• a window-shaped opening can be realized by the solution proposed in the invention in the guide housing, on the one hand the sensor package, which is cohesively designed with the construction and connection technology in the form of a lead frame arrangement and a track arrangement, and on the other hand on the other Side of the guide housing detects the lateral traversing movements of the formed in particular as a magnetic slide magnetic component.
• this preassembled module is mounted on the guide housing such that the sensor package is the window on the guide housing opposite.
• the preassembled assembly of sensor package and punched grid arrangement or strip conductor arrangement can be clipped into the guide housing particularly easily. Subsequently, the execution of the PA overmolding, advantageously made of plastic material snap-in elements are formed, which simply dig into a correspondingly configured openings in the guide housing without tools, after the plastic material has cured.
• the sensor package is in the assembled state at a well-defined distance with respect to the window-shaped opening in the guide housing, on the opposite side of the movable in the lateral direction magnetic carriage is arranged.
• the window on the guide housing favorably minimizes the air gap between the sensor package and the magnetic carriage.
• the encapsulation which is clipped with the guide housing via suitably formed openings, does not serve to seal the sensor package against the transmission fluid.
• the PA encapsulation which in the mounted state on the guide housing of the position sensor protects the assembly and connection technology in the form of pre-molded punched grids or pre-encapsulated interconnects, serves to avoid short circuits due to short circuits in the housing
• the PA encapsulation further serves to fix the position of the sensor package in the assembled state both in the event of temperature fluctuations and in the case of shaking stress which inevitably occurs during operation of a motor vehicle.
• the production of the inventively proposed position sensor is carried out by manufacturing the sensor housing 12 made of PPS, which is a highly accurate manufacturable, but expensive material.
• the function of the sensor housing is to accommodate the remaining components as well as an exact guidance of the magnet over the service life.
• a pre-molded punched grid arrangement and a sensor package are clipped.
• the sensor package is in a Opening 22 clipped.
• Such a preassembled module is placed in an injection mold and with another plastic material, which is preferably PA, overmoulded.
• clawing elements 54 are created, as a result of which the pre-encapsulated leadframe arrangement 50 and the preassembled sensor package 56 are adhesively bonded to the guide housing.
• at least one hook-shaped projection 44 is formed.
• the magnet carriage is mounted displaceably in the lateral direction in the module which has been overmoulded in this way.
• FIG. 1 shows a guide housing of the position sensor proposed according to the invention with positioning aids for a sensor package and openings for wedging a PA encapsulation of the guide housing to be subsequently executed;
• FIG. 2 shows the opposite side of the guide housing shown in FIG. 1 with guide rails or a magnetic component accommodated on a guide rib, here designed as a guide carriage and already assembled electrical construction and connection technology,
• FIG. 3 shows the finished overmolded module
• FIG. 4 shows a section along the section line IV - IV shown in FIG. 3 through the assembled arrangement of magnetic carriages, guide housing and PA encapsulation according to FIG. 3,
• Figure 5 shows the pre-assembly of the sensor package and punched grid or vorumspritzter interconnect arrangement and their positioning relative to the window on the guide housing and 6 shows an exploded view of the components of the inventively proposed sensor with PA encapsulation, pre-assembled punched grid with sensor package, guide housing and of this still separated magnetic component, in particular designed as a magnetic slide.
• the representation according to FIG. 1 shows that a sensor housing 12 of a position sensor is designed as a guide housing 14.
• the guide housing 14 is made of plastic material, such as PPS (GF + M) 65 or PPS
• PPS polyphenylene sulfide
• a PA encapsulation 58 represents an encapsulation made of polyamide, which is a relatively inexpensive plastic material.
• the guide housing 14 of the position sensor has a number of window-shaped openings. Furthermore, a window 20 is formed in the guide housing 14, within which, in the mounted state of the position sensor, a sensor package 56 to be described or a laterally displaceable magnetic component 34, in particular designed as a magnetic slide 34, are located opposite one another.
• the configuration of the window 20 in the guide housing 14 allows the minimization of the distance between the sensor package 56, see FIG. 5, and the magnet carriage, compare the illustration in FIG. 2.
• positioning elements 16 which may be formed, for example, as a rib 18 or as punctiform supports, against which the sensor package 56, compare representation according to Figure 5, in the mounted state of the same.
• the housing comprises a number of mounting windows or mounting holes 30. These are as in the illustration of FIG 1 schematically indicated z. B. procure as slotted holes. These could also have a square, rectangular or mushroom-shaped appearance and serve to catch an encapsulant in the injection process with a PA encapsulation 48 in accordance with the illustration.
• a window 28 located in the guide housing 14 of the sensor housing 12 as shown in Figure 1, a window 28.
• the guide housing 14 also includes a collar bushing 24.
• the collar bushing 24 positions the sensor housing 12.
• the collar bushing 24 moreover ensures a screw connection possibility of the sensor housing 12, since it may comprise an internal thread.
• a window 22 is located in the guide housing 14. This serves for latching a preassembled module, a pre-molded stamped grid 50, cf. FIG. 5 for a pre-molded conductor track arrangement 40 or another construction and connection technique.
• FIG. 2 shows the finished assembly, which is shown schematically in FIG
• a movable in the lateral direction magnetic or magnetizable component 34 On the back of the guide housing 14 shown in Figure 2 is a movable in the lateral direction magnetic or magnetizable component 34. In the embodiment of Figure 2 this is formed sled-shaped and laterally on a guide rib 32 which is molded on the back of the guide housing 14 traversable. Opposite ends of the magnetic member 34 are guided in a first guide rail 36 and a second guide rail 38 formed on the guide housing 14, respectively.
• the magnetic member 34 includes a recess 58 extending from a stop surface 60 on a side surface
• FIG. 3 shows that the PA encapsulation 48 is completely injected on the guide housing 14.
• Reference numeral 46 designates support points on which a sensor package 56 is arranged at a well-defined distance with respect to the leadframe arrangement 50 or the pre-molded conductor tracks 40.
• the PA encapsulation has on its not shown in Figure 3, the guide housing 14 facing side, a number of snap-54, which are best seen in the exploded view of Figure 6. From FIG.
• a captive securing device 42 in the form of the latching hook 44 is formed on the PA encapsulation 48, which is clawed in the window 28 of the PA encapsulation 48 and forms the captive securing device for the magnetic component already described in connection with FIG ,
• the clawing is created by flowing the PA plastic material into the designated window-shaped opening 28th
• FIG. 3 shows a sectional profile IV-IV which runs through the captive securing device 42, the guide housing 14 and the PA encapsulation 48.
• FIG. 4 shows the section line IV - IV according to the illustration in FIG. 3 through the assembly comprising the guide housing 14, the PA encapsulation 48 and the magnetic component 34. From the illustration according to FIG. 4, it can be seen that in the installed state of the pre-molded leadframe arrangement 40 or the pre-molded conductor track structure 40 and its encapsulation 48 with PA the captive protection 42 projects through the window 28 of the guide housing 14. This results in the hook-shaped projection 44 of the captive 42 before and cooperates with the abutment surface 60, which limits the recess 58 of the magnetic member 34, together.
• the pre-molded conductor track structure 40 or a pre-molded leadframe arrangement 50 is fixed by the PA encapsulation 48.
• the PA encapsulation 48 which fixes and electrically isolates the preassembled assembly of sensor package 56, pre-encapsulated leadframe arrangement 50 and / or pre-encapsulated interconnect arrangement 40, lies flat against the guide housing 14, on whose rear side along the guide rib 32 the magnetic component, in particular slidably formed 34 is movable.
• a pre-molded stamped grid arrangement 50 can contain a number of printed conductors.
• the assembly and connection technology may also comprise a number of printed conductors 40 instead of a pre-molded stamped grid arrangement.
• FIG. 5 shows that before assembly of the PA
• Encapsulation 48 as shown in FIG. 3, the sensor package 56 is electrically connected at the support points 46 to the pre-encapsulated stamped grid arrangement 50 or a pre-encapsulated interconnect structure 40.
• the support points 46 are formed by peg-shaped on the back of the sensor package 56 protruding projections. The length of the peg-shaped projections in the region of the support points 46 defines the distance that the sensor package 46 assumes in the assembled state through the window 20 with the magnetic components 34 which can be moved laterally in the lateral direction according to FIG. This air gap should be minimized.
• the mounting direction of the magnetic component 34 as shown in FIG. 4, on the guide rib 32 or the guide rails 36 and 38 on the guide housing 14 of the position sensor can be seen in the illustration according to FIG.
• FIG. 6 shows the position sensor 10 proposed according to the invention in its individual assemblies.
• the illustration according to FIG. 6 also shows the sensor package 56, likewise shown in an exploded view in FIG. 5, which is connected in a materially bonded manner to the pre-molded stamped grid arrangement 50 or to a pre-molded printed conductor structure 40.
• This preassembled module is first locked with the guide housing 14. The clipping is done by inserting a snap-in element into the gur 1 illustrated window 22 of the guide housing 14, so that the preassembled assembly of sensor package 56, pre-ejected punched grid arrangement 50 or pre-molded conductor track arrangement 40 is fixed to the guide housing 14. Subsequently, the overlapping of this assembly takes place through the PA coating 48. From the exposition representation according to FIG. 6, it is clear that on the inside of the PA
• Encasing 58 the Verkrallungsiana 54 are formed in mushroom shape as an undercut. These are generated in the production of PA overmoulding 48 on the guide housing 14 by flowing and then curing PA material.
• the sensor element 56 is pressed with its front side against the positioning elements 16, which may be configured as punctiform supports or ribs 18.
• the hook-shaped projection 44 of the captive 42 projects through the corresponding window 28 of the guide housing 14.
• the magnetic component 34 is inserted into the lower guide rail 38, the guide rib 32 optionally formed on the rear side of the guide housing 14 as well as in the
• the magnetic member 34 includes a front surface 64, the already mentioned in connection with Figure 2 recess 58, which is bounded by the stop surface 60, and the side surface 62, which limit the front surface 64 of the magnetic member 34.
• the insertion of the magnetic component 34 into the guide rails 38 or 36 or the guide rib 32 is particularly simple, because due to the inclination of the hook-shaped projection 44 in the insertion direction, this is easily moved by the magnetic component 34 that can be moved in the lateral direction can be, but in the opposite direction due to the straight hook-shaped projection 44 of the captive 42, the stop surface 60 which limits the recess 58, abuts the straight side of the hook-shaped projection 44 of the captive 42.
• the magnetic component 34 which can be moved in the lateral direction on the guide housing 14, is captively but movably received.

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

Priority Applications (5)

Applications Claiming Priority (2)

Publications (2)

Family

ID=43971993

Family Applications (1)

Country Status (7)

Families Citing this family (6)

Citations (1)

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• 2009
  • 2009-12-08 DE DE102009047621A patent/DE102009047621A1/de not_active Withdrawn
• 2010
  • 2010-10-11 KR KR1020127016474A patent/KR101713361B1/ko active IP Right Grant
  • 2010-10-11 CN CN201080055466.1A patent/CN102639967B/zh active Active
  • 2010-10-11 EP EP10765785.0A patent/EP2510315B1/de active Active
  • 2010-10-11 JP JP2012542411A patent/JP5538561B2/ja not_active Expired - Fee Related
  • 2010-10-11 WO PCT/EP2010/065175 patent/WO2011069712A2/de active Application Filing
  • 2010-10-11 US US13/514,280 patent/US9568341B2/en active Active

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