WO2016150616A1 - Sensoranordnung zur drehzahlerfassung eines rotierenden bauteils - Google Patents
Sensoranordnung zur drehzahlerfassung eines rotierenden bauteils Download PDFInfo
- Publication number
- WO2016150616A1 WO2016150616A1 PCT/EP2016/052979 EP2016052979W WO2016150616A1 WO 2016150616 A1 WO2016150616 A1 WO 2016150616A1 EP 2016052979 W EP2016052979 W EP 2016052979W WO 2016150616 A1 WO2016150616 A1 WO 2016150616A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sensor unit
- measuring element
- sensitive measuring
- sensor
- rotary encoder
- Prior art date
Links
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
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/20—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
- G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
Definitions
- the invention is based on a sensor arrangement for speed detection of a rotating component according to the preamble of independent claim 1.
- the present invention is also a method for producing a sensor unit for a sensor arrangement for speed detection of a rotating component according to the type of independent Patent claim 10.
- Sensor arrangements for speed detection of a rotating component are known from the prior art, which comprise a rotary encoder coupled to the rotating component and a sensor unit.
- the rotary encoder has a magnetic surface coding with alternating magnetic north poles and south poles.
- the rotational movement of the rotary encoder caused by the coupling with the rotating component changes at least one spatial component of a magnetic field generated by the magnetic coding at the location of a sensitive measuring element.
- the sensitive measuring element detects the changes in the magnetic field and an evaluation and control unit evaluates the detected magnetic field changes to determine the rotational speed of the rotating rotary encoder or of the rotating component.
- the sensor arrangement is designed such that the surface coding runs parallel or at an angle of approximately 90 ° to the sensing surface of the sensitive measuring element. This means that the main detection direction of the sensitive measuring element is aligned parallel to the main extension direction of the sensor unit. It follows from this dependence of the sensor arrangement that a design for a rotary encoder arranged laterally next to the sensor unit and a design for a rotary encoder arranged below the sensor unit are used in each case for the sensor unit.
- Sensitive measuring elements are generally known magnetic sensors Depending on the application and area of application, these can be implemented as Hall sensors, AMR sensors, GMR sensors, TMR sensors or, in general, as xMR sensors.
- the sensitive measuring element used can, for example, be part of an ASIC (application-specific integrated circuit).
- a magnetic field sensor arrangement for path detection on moving components in which spatial components of the magnetic field of a magnetic system on the moving component change in their direction over the path to be detected and thereby their position relative to a stationary sensor detected accordingly is.
- the sensor arrangement for speed detection of a rotating component with the features of independent claim 1 has the advantage that it is no longer necessary for the sensor unit each have a design for a laterally arranged next to the sensor unit encoders and a design for a arranged below the sensor unit encoder but that the sensor unit for detecting the magnetic field changes can be used both for laterally to the sensor unit and for arranged below the sensor unit encoders.
- the core of the invention consists in the use of the physical properties of the sensitive measuring elements, which are preferably designed as magnetoresistive sensor elements, and a target-oriented arrangement of the at least one sensitive measuring element in the sensor unit.
- the at least one sensitive measuring element is aligned at a defined angle in the sensor unit, It makes it possible to meet the customer requirement with respect to the air gap and possibly further requirements for a bottom-read speed sensor arrangement, in which the rotary encoder is arranged below the at least one sensitive measuring element, and for a side-read speed sensor arrangement, in which the rotary encoder is laterally to the at least one sensitive
- Measuring element is arranged.
- the desired by the customer bottom read or side-read speed sensor assembly is thus implemented in an advantageous manner with a sensor unit design.
- Embodiments of the present invention provide a sensor assembly for rotational speed sensing of a rotating component which includes a rotary encoder coupled to the rotating component and having magnetic surface coding with alternating magnetic north poles and south poles, and a sensor unit comprising a housing, a connection cable and at least one sensitive sensing element, which is electrically connected within the housing via a Maisieran für technik.
- the rotational movement of the rotary encoder changes at least one spatial component of a magnetic field generated by the magnetic encoding at the location of the sensitive measuring element, which detects the changes in the magnetic field for determining the rotational speed of the rotating component.
- the at least one sensitive measuring element is arranged in the sensor unit, that its main detection direction has a defined angle to the main extension direction of the sensor unit, wherein the at least one sensitive measuring element caused by a rotary encoder changes of the magnetic field either via a parallel to the main direction extending first sub-detection direction or detects a perpendicular to the main extension direction extending second sub-detection direction.
- a method for producing a sensor unit for the sensor arrangement comprises the following steps: connecting the contacting arrangement of the sensor unit with the connection cable, gripping the sensor unit and the connecting cable, each with a gripping tool, positioning the sensor unit by bending over the contacting arrangement, so that the Main detection direction of the at least one sensitive measuring element ment of the sensor unit has the defined angle to the main extension direction and encapsulation of the sensor unit and the contacting arrangement with plastic.
- the angle can have a value in the range of 40 to 50 °, preferably a value of 45 °.
- Such an orientation of the at least one sensitive measuring element advantageously results in a configuration of the sensor arrangement of equivalent circuit design, regardless of the design as a side-read rotational speed sensor arrangement or as a bottom-read rotational speed sensor arrangement.
- the bottom-read speed sensor arrangement and the side-read speed sensor arrangement can be displayed.
- a side-read speed sensor arrangement may be provided in a further aspect, to specify between the rotary encoder and the sensor unit in a first spatial direction which is parallel to the main extension direction, a first air gap.
- a second air gap can be predetermined between the rotary encoder and the sensor unit in a second spatial direction, which runs perpendicular to the main extension direction.
- the sensor unit may comprise an evaluation and control unit which evaluates the detected magnetic field changes for determining the rotational speed of the rotating component.
- a compact and functionally reliable configuration of the sensor arrangement results when the at least one sensitive measuring element and the evaluation and Control unit designed as an application-specific integrated circuit (ASIC) with plastic housing.
- ASIC application-specific integrated circuit
- the housing of the sensor unit can be designed as a plastic extrusion coating which at least partially surrounds the plastic housing of the application-specific integrated circuit. This allows a simple and inexpensive design of the sensor arrangement.
- a corresponding holder of the sensor unit can be integrated or formed in the housing.
- Plastic encapsulation can be carried out, for example, such that the at least one sensitive measuring element is arranged outside the housing designed as a plastic encapsulation.
- Plastic encapsulation in the region of the at least one sensitive measuring element advantageously results in an enlargement of the usable air gap of typically 0.8 mm corresponding to the thickness of the plastic encapsulation.
- the area where the plastic housing of the application-specific integrated circuit has no plastic encapsulation can be used as access area for a gripping tool during the injection process.
- FIG. 1 shows a schematic sectional view of a first exemplary embodiment of a sensor arrangement according to the invention for detecting the rotational speed of a rotating component.
- FIG. 2 shows a schematic sectional view of a second exemplary embodiment of a sensor arrangement according to the invention for detecting the rotational speed of a rotating component.
- 3 shows a schematic sectional view of a third exemplary embodiment of a sensor arrangement according to the invention for detecting the rotational speed of a rotating component.
- FIG. 4 shows a schematic sectional illustration of a fourth exemplary embodiment of a sensor arrangement according to the invention for detecting the rotational speed of a rotating component.
- FIG. 5 shows a schematic representation of a sensor unit for the sensor arrangement according to the invention for detecting the speed of a rotating component from FIGS. 3 and 4 during production.
- FIG. 6 shows a schematic side view of a known from the prior art sensor arrangement for speed detection of a rotating component.
- FIG. 7 shows a schematic top view of the sensor arrangement known from the prior art for the rotational speed detection of a rotating component from FIG. 6.
- the illustrated embodiments of a sensor arrangement 1A, 1B, IC, 1D for rotational speed detection of a rotating component each comprise a rotary encoder 5S, 5B, which is coupled to the rotating component and a magnetic surface encoding with alternating magnetic North Pole N and south poles S, and a sensor unit 10A, 10B, which has a housing 12A, 12B, a connecting cable 3 and at least one sensitive measuring element 18.1, which is electrically connected within the housing 12A, 12B via a Maisieranssen 16 with the connecting cable 3 ,
- the rotational movement of the rotary encoder 5S, 5B changes at least one spatial component of a magnetic field generated by the magnetic encoding at the location of the sensitive measuring element 18.1, which detects the changes in the magnetic field for determining the rotational speed of the rotating component.
- the at least one sensitive measuring element 18.1 is arranged in the sensor unit 10A, 10B such that its main detection element 18.1 HE has a defined angle D to the main extension direction LA of the sensor unit 10A, 10B.
- the at least one sensitive measuring element 18.1 detects the changes in the magnetic field caused by a rotary encoder 5S, 5B either via a first sub-detection direction NS1 running parallel to the main extension direction LA or via a second sub-detection direction NS2 extending perpendicular to the main extension direction LA.
- the angle D in the illustrated exemplary embodiments has a value in the range from 40 to 50 °, preferably a value of 45 °.
- the wheel speed of vehicles is typically determined by the use of sensor arrangements 1A, 1B, IC, 1D for speed detection.
- magnetized shaft encoder 5S, 5B which are constructed from a juxtaposition of magnetic pole pairs, each having a magnetic north pole and south pole.
- 48 pole pairs are used for a rotary encoder 5S, 5B.
- the rotary encoder 5S, 5B is constructed as a drum, which rotates about a rotational axis DA, DA1, DA2 and the lateral surface of which is composed of alternating magnetic north poles N and south poles S.
- the rotary encoder 5S, 5B in embodiments not shown are designed as a rotating about a rotation axis disc whose surface is composed of alternating circular-segment-shaped north poles N and south poles S.
- the magnetic field generated by the change of the north pole N and south pole S is measured with the aid of the at least one sensitive measuring element 18.1.
- the at least one sensitive measuring element 18.1 changes its output signal level.
- an output current change is from 7mA to 14mA or from 14mA to 7mA.
- at least two sensitive measuring elements 18.1 are used, so that in addition to the rotational speed and the direction of rotation of the rotary encoder 5S, 5B can be determined.
- the magnetic field is detected or measured by the at least one sensitive measuring element 18.1.
- the structure of the at least one sensitive measuring element 18.1 is varied.
- sensitive measuring elements 18.1 for example, known magnetic sensors can be used which, depending on the application can be implemented as AMR sensors, GMR sensors, TMR sensors or in general as xMR sensors.
- the at least one sensitive measuring element 18.1 used is part of an application-specific integrated circuit 18 (ASIC) with a plastic housing, which next to the at least one sensitive sensor
- ASIC application-specific integrated circuit 18
- Measuring element 18.1 comprises an evaluation and control unit 18.2, which evaluates the detected magnetic field changes to determine the rotational speed of the rotating component or rotary encoder 5S, 5B.
- the at least one sensitive measuring element 18.1 can be designed as a half or full bridge. Using a full bridge results in a larger change in resistance.
- the housing 12A, 12B of the sensor unit 10A, 10B is designed as a plastic extrusion coating which at least partially surrounds the plastic housing of the application-specific integrated circuit 18.
- the plastic housing of the application-specific integrated circuit 18 is completely encapsulated with plastic, preferably a polyamide.
- the plastic housing of the application-specific integrated circuit 18 in the illustrated second embodiment of the sensor unit 10B is encapsulated with plastic, preferably a polyamide, such that at least the at least one sensitive measuring element 18.1 is outside the plastic encapsulation Housing 12 B of the sensor unit 10 B is arranged.
- Plastic encapsulation in the region of the at least one sensitive measuring element 18.1 results in an advantageous manner an increase in the usable air gap LSz, LSy of typically 0.8 mm corresponding to the thickness of
- the area at which the plastic housing of the application-specific integrated circuit 18 has no plastic encapsulation can be used as the access area for a gripping tool 7, 9 during the injection process, as can be seen from FIG. 5.
- the magnetic field, which changes in the x direction, of the rotary encoder 5S rotating about the first axis of rotation DA1 is detected or measured by the at least one sensitive measuring element 18.1.
- the at least one sensitive measuring element 18.1 has in the z-direction a constant distance to the rotary encoder 5S, which corresponds to the first air gap LSz.
- the first axis of rotation DA1 runs parallel to the y-direction. Due to the defined angle ⁇ and the rotation of the at least one sensitive measuring element 18.1 about an axis of rotation parallel to the x-direction, the position of the at least one sensitive measuring element 18.1 changes with respect to the rotary encoder 5S in the y-direction, so that the at least one sensitive measuring element 18.1 detects the changes in the magnetic field no longer in the Hauter directedscardi HE but in the first sub-detection direction N E1.
- a second Air gap LSy specified.
- the magnetic field, which changes in the x-direction, of the rotary encoder 5B rotating about the second rotational axis DA2 is detected or measured by the at least one sensitive measuring element 18.1.
- the at least one sensitive measuring element 18.1 has a constant distance to the rotary encoder 5B in the y direction, which corresponds to the second air gap LSy.
- the second axis of rotation DA2 runs parallel to the z-direction.
- the position of the at least one sensitive measuring element 18.1 changes with respect to the rotary encoder 5B in the z-direction, so that the at least one sensitive measuring element 18.1 no longer detects the changes in the magnetic field in the skin detection direction HE but in the second secondary detection direction N E2.
- the distance or air gap LSz, LSy between the at least one sensitive measuring element 18.1 and the respective rotary encoder 5S, 5B is thus identical for both applications - side-read speed sensor arrangement 1A, IC or bottom-read speed sensor arrangement 1B, 1D.
- the sensor unit 10A, 10B behaves equally in terms of circuitry in both applications.
- the side-read speed sensor arrangement and the bottom-read speed sensor arrangement 1A, IC can be represented.
- An adjustment of the length of the angled portion of the sensor unit 10A, 10B can be made if necessary.
- the sensor unit IOC is arranged so that the sensing surfaces of the sensitive measuring elements 18.1 with a defined air gap LS parallel to the lateral surface of the rotary encoder 5S, 5B and magnetic surface coding with the alternating magnetic north poles N and south poles S.
- the main detection direction HE of the sensitive measuring elements 18.1 runs perpendicular to the magnetic surface coding with the alternating magnetic north poles N and south poles S.
- the at least one sensitive measuring element 18.1 is arranged in the sensor unit 10A, 10B such that its main detection direction HE has a defined angle D in the range between 40 to 50 ° to the main extension direction LA of the sensor unit 10A, 10B.
- the plastic housing of the application-specific integrated circuit 18 (ASIC) of the second embodiment of the sensor unit 10B can be positioned by the gripper tools 7, 9 using gripping tools 7, 9 and bent around the defined angle D and then encapsulated , The area where the plastic housing of the application-specific integrated circuit 18 (ASIC) is clamped with the gripper tool 7 is not encapsulated.
- the gripping tools 7, 9 can also be designed as an automatic machine which feeds one or more plastic housings of the application-specific integrated circuit 18 (ASIC) in parallel to the production process and keeps it in position during the course of the production process.
- the gripping tools 7, 9 also offer the possibility to manufacture the cable guide simplified by the connecting cable 3 is clamped in the gripping tool 9.
- the connection cable 3 is previously electrically connected via the contacting arrangement 16 with the application-specific integrated circuit 18 (ASIC).
- the connecting cable 3 is mechanically tensioned and finally together with the
- the length of the plastic housing of the application-specific integrated circuit 18 (ASIC) or the degree of plastic extrusion can be selected correspondingly in order to increase the robustness against penetrating media.
- Another approach to media tightness can be achieved by a protective coating of the plastic housing of the application specific integrated circuit 18 (ASIC) and the
- Plastic injection can be implemented.
- the immersion of the sensor unit 10B in a sealing substance is listed.
- the use of gripping tools 7, 9 allows a high degree of flexibility with respect to the angle D of its main detection direction HE of the at least one sensitive measuring element 18.1 to the main extension direction LA of the sensor unit 10B.
- the adjustability of the gripper tools 7, 9, so that when changing the positioning of the plastic housing of the application-specific integrated circuit 18 (ASIC) or the angle D no new tool is required.
- the method for producing a sensor unit 10B for the sensor arrangement IC, 1D thus comprises the steps of: connecting the contacting arrangement 16 of the sensor unit 10B with the connection cable 3. grasping the sensor unit 10B and the connection cable 3 with a respective gripping tool 7, 9. Positioning the sensor unit 10B by bending over the contacting arrangement 16, so that the main detection direction HE of the at least one sensitive measuring element 18.1 of the sensor unit 10B has the defined angle D to the main extension direction LA. Overmolding the sensor unit 10B and the
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/561,398 US10408854B2 (en) | 2015-03-25 | 2016-02-12 | Sensor arrangement for measuring the rate of rotation of a rotating component |
KR1020177026746A KR20170129774A (ko) | 2015-03-25 | 2016-02-12 | 회전 부품의 회전 속도를 측정하기 위한 센서 장치 |
CN201680018041.0A CN107407580B (zh) | 2015-03-25 | 2016-02-12 | 用于检测旋转部件转速的传感器装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015205390.3 | 2015-03-25 | ||
DE102015205390.3A DE102015205390A1 (de) | 2015-03-25 | 2015-03-25 | Sensoranordnung zur Drehzahlerfassung eines rotierenden Bauteils |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016150616A1 true WO2016150616A1 (de) | 2016-09-29 |
Family
ID=55349851
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2016/052979 WO2016150616A1 (de) | 2015-03-25 | 2016-02-12 | Sensoranordnung zur drehzahlerfassung eines rotierenden bauteils |
Country Status (5)
Country | Link |
---|---|
US (1) | US10408854B2 (de) |
KR (1) | KR20170129774A (de) |
CN (1) | CN107407580B (de) |
DE (1) | DE102015205390A1 (de) |
WO (1) | WO2016150616A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106706948B (zh) * | 2016-11-25 | 2019-04-12 | 合肥工业大学 | 一种车轮轮速测量装置 |
DE102017221763A1 (de) * | 2017-12-04 | 2019-06-06 | Robert Bosch Gmbh | Sensorsystem zur Bestimmung mindestens einer Rotationseigenschaft eines um mindestens eine Rotationsachse rotierenden Elements |
DE102019115397A1 (de) * | 2019-06-06 | 2020-12-10 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Raddrehzahlsensor für ein Nutzfahrzeug |
Citations (4)
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US6157186A (en) * | 1997-06-26 | 2000-12-05 | Unisia Jecs Corporation | Rotation detecting apparatus having a casing made of resin material and having a clearance groove for absorbing thermal radiation |
WO2005111544A2 (fr) * | 2004-05-17 | 2005-11-24 | Siemens Vdo Automotive | Capteur optimise et procede de fabrication dudit capteur |
DE102009046392A1 (de) * | 2009-11-04 | 2011-05-05 | Robert Bosch Gmbh | Sensoranordnung für ein Fahrzeug und korrespondierendes Verfahren zur Herstellung einer solchen Sensoranordnung |
DE102009046439A1 (de) * | 2009-11-05 | 2011-05-12 | Robert Bosch Gmbh | Sensoreinheit mit Kunststoffummantelung und Verfahren zur Herstellung der Kunststoffummantelung |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS5613244B2 (de) * | 1974-07-31 | 1981-03-27 | ||
JPS5993941A (ja) * | 1982-11-19 | 1984-05-30 | Honda Motor Co Ltd | 内燃エンジンの燃料供給制御方法 |
EP1910780B1 (de) * | 2005-08-01 | 2009-06-17 | Continental Teves AG & Co. oHG | Anordnung zur raddrehzahlerfassung mit erhöhter eigensicherheit |
US7242180B1 (en) * | 2006-05-10 | 2007-07-10 | Key Safety Systems, Inc. | Rotationally orientated dual differential hall effect speed and direction gear tooth sensor assembly |
DE102009028963A1 (de) * | 2009-08-28 | 2011-03-03 | Robert Bosch Gmbh | Anschlussanordnung für eine Sensoranordnung und Sensoranordnung |
DE102009055104A1 (de) | 2009-12-21 | 2011-06-22 | Robert Bosch GmbH, 70469 | Magnetfeldsensoranordnung zur Wegerfassung an beweglichen Bauteilen |
JP5062449B2 (ja) * | 2010-08-11 | 2012-10-31 | Tdk株式会社 | 回転磁界センサ |
DE102011087328B4 (de) * | 2011-11-29 | 2024-03-14 | Zf Friedrichshafen Ag | Verfahren zur Herstellung einer umspritzten Sensorbaugruppe sowie eine Sensorbaugruppe |
-
2015
- 2015-03-25 DE DE102015205390.3A patent/DE102015205390A1/de active Pending
-
2016
- 2016-02-12 CN CN201680018041.0A patent/CN107407580B/zh active Active
- 2016-02-12 WO PCT/EP2016/052979 patent/WO2016150616A1/de active Application Filing
- 2016-02-12 KR KR1020177026746A patent/KR20170129774A/ko not_active Application Discontinuation
- 2016-02-12 US US15/561,398 patent/US10408854B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6157186A (en) * | 1997-06-26 | 2000-12-05 | Unisia Jecs Corporation | Rotation detecting apparatus having a casing made of resin material and having a clearance groove for absorbing thermal radiation |
WO2005111544A2 (fr) * | 2004-05-17 | 2005-11-24 | Siemens Vdo Automotive | Capteur optimise et procede de fabrication dudit capteur |
DE102009046392A1 (de) * | 2009-11-04 | 2011-05-05 | Robert Bosch Gmbh | Sensoranordnung für ein Fahrzeug und korrespondierendes Verfahren zur Herstellung einer solchen Sensoranordnung |
DE102009046439A1 (de) * | 2009-11-05 | 2011-05-12 | Robert Bosch Gmbh | Sensoreinheit mit Kunststoffummantelung und Verfahren zur Herstellung der Kunststoffummantelung |
Also Published As
Publication number | Publication date |
---|---|
CN107407580A (zh) | 2017-11-28 |
KR20170129774A (ko) | 2017-11-27 |
DE102015205390A1 (de) | 2016-09-29 |
CN107407580B (zh) | 2021-03-16 |
US20180106824A1 (en) | 2018-04-19 |
US10408854B2 (en) | 2019-09-10 |
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