EP3818634A1 - Drehschaltervorrichtung für ein fahrzeug und verfahren zum ermitteln einer schaltstellung eines drehschalters - Google Patents
Drehschaltervorrichtung für ein fahrzeug und verfahren zum ermitteln einer schaltstellung eines drehschaltersInfo
- Publication number
- EP3818634A1 EP3818634A1 EP19749201.0A EP19749201A EP3818634A1 EP 3818634 A1 EP3818634 A1 EP 3818634A1 EP 19749201 A EP19749201 A EP 19749201A EP 3818634 A1 EP3818634 A1 EP 3818634A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- signal
- rotary switch
- designed
- operating body
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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
- H03K17/97—Switches controlled by moving an element forming part of the switch using a magnetic movable element
-
- 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
- G01D5/142—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 using Hall-effect devices
- G01D5/145—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 using Hall-effect devices influenced by the relative movement between the Hall device and magnetic fields
-
- 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
- H03K17/945—Proximity switches
- H03K17/95—Proximity switches using a magnetic detector
- H03K17/9517—Proximity switches using a magnetic detector using galvanomagnetic devices
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N52/00—Hall-effect devices
- H10N52/80—Constructional details
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
- H03K2217/9401—Calibration techniques
- H03K2217/94026—Automatic threshold calibration; e.g. threshold automatically adapts to ambient conditions or follows variation of input
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
- H03K2217/94057—Rotary switches
- H03K2217/94068—Rotary switches with magnetic detection
Definitions
- Rotary switch device for a vehicle and method for determining a
- the present invention relates to a rotary switch device for a driving tool and a method for determining a switching position of a rotary switch.
- Rotary switches are used, for example, in vehicles as control elements for vehicle occupants.
- the rotary switch can also include a so-called pushdown function, so that the rotary switch can not only be turned but also pressed.
- the present invention provides an improved rotary switch device for a vehicle and an improved method for determining a switching position of a rotary switch according to the main claims.
- Advantageous embodiments result from the subclaims and the following description.
- a switch position of a rotary switch which was set both by a rotary movement and a linear movement of the rotary switch, can advantageously be detected using one or more Hall sensors.
- a measurement principle based on one or more Hall sensors can be used for this purpose.
- a rotary function and push function can be implemented using a single 3-D sensor without additional sensors.
- a rotary switch device for a vehicle has the following features: a rotary switch with an operating body which is movably mounted in order to be able to carry out a rotary movement about an operating axis of the operating body and a longitudinal movement along the operating axis, the operating body having a magnetic device for providing a magnetic field having; a Hall sensor device configured to provide a sensor signal representative of a characteristic of the magnetic field; and a determination device which is designed to determine, using the sensor signal, a position signal which indicates a rotational position of the operating body about the operating axis and a longitudinal position of the operating body along the operating axis.
- the rotary switch device can be used in a vehicle, for example a road vehicle, watercraft or aircraft or in connection with another device, for example a machine.
- the operating body can be operated by a person, on the one hand being rotated to effect the rotational movement about the actuation axis and on the other hand being pressed to bring about the longitudinal movement along the actuation axis.
- the rotary switch device can comprise a suitable holder device which can hold the operating body and thereby enables the rotational movement and the longitudinal movement of the operating body.
- the magnet device can have at least one magnet.
- the magnet device can be integrated in the operating body or attached to the operating body.
- the Hall sensor device can comprise at least one Hall sensor.
- the Hall sensor device can be arranged such that the operating body can execute the rotary movement and the longitudinal movement relative to the Hall sensor device.
- the Hall sensor device can be attached to the holding device.
- the Hall sensor device can be designed to detect a magnetic flux density of the magnetic field as the characteristic and to reproduce it in the sensor signal.
- the determination device can comprise an electrical circuit.
- the determination device can be designed to determine the position signal, for example, using a suitable determination rule, a look-up table or a threshold value comparison.
- the position signal can indicate not only a position of the operating body caused by the rotational movement but also a position caused by the longitudinal movement. In this way, a switch position of the rotary switch device embodied as a rotary and push switch can be displayed.
- the use of sliding contacts, slip rings or levers, which can actuate additional contacts can advantageously be dispensed with.
- the vertical position can also be recognized using the Hall sensor device, as a result of which the mechanical and electrical outlay can be kept very low.
- the determining device can be designed to determine the position signal using a temperature signal.
- the temperature signal can indicate a current ambient temperature on the operating body.
- Such a temperature signal is suitable for compensating measurement inaccuracies caused by different temperatures.
- the determination device can be designed to determine a temperature-compensated sensor signal using the sensor signal and the temperature signal. Furthermore, the determination device can be designed to determine the position signal using the temperature-compensated sensor signal. This enables a very simple procedure for temperature compensation.
- the temperature-compensated sensor signal can be determined, for example, using a look-up table or a suitable compensation regulation.
- the determining device can be designed to determine the position signal using a predetermined reference value assigned to a predetermined rotational position and / or predetermined longitudinal position. For example, a value transmitted by the position signal can be compared with the reference value in order to determine whether a current position of the operating body corresponds to a position assigned to the reference value.
- a plurality of predetermined reference values can also be provided, which can be assigned to a plurality of different predetermined positions, also called positions or switching positions, of the operating body. In this way, the current position of the operating body can be determined very precisely.
- at least one assigned to a predetermined rotational position can also be used predetermined rotational reference value and at least one predetermined longitudinal position associated with a predetermined longitudinal position value are used to determine the position signal.
- the determination device can be designed to determine the predetermined reference value in response to a calibration signal using the sensor signal.
- a sensor value transmitted by the sensor signals can be stored as the predetermined reference value. In this way, the rotary switch device can be calibrated very easily.
- the determination device can be designed to determine a temperature-compensated reference value using the predetermined reference value and the temperature signal. Furthermore, the determination device can be designed to determine the position signal using the sensor signal and the temperature-compensated reference value. In this way, a temperature difference between the current ambient temperature and the ambient temperature prevailing when the reference value is established can be taken into account.
- the determination device can be designed to determine the position signal as a signal that indicates a current rotational position of the operator body as one of two possible predetermined rotational positions and a current longitudinal position of the operator body as one of two possible longitudinal positions of the operator body.
- the predetermined positions can be assigned to predetermined switch positions.
- the magnet device can be designed as a ring magnet. Both the rotary movement and the longitudinal movement can be detected via a ring magnet as a signal generator.
- the Hall sensor device can comprise at least one Hall sensor.
- the Hall sensor or the Hall sensors of the Hall sensor device can advantageously be the only sensors that are used to determine the switch position of the rotary switch. Switch device can be used.
- the Hall sensor used to sense the rotary movement can also be used to sense the longitudinal movement. If several Hall sensors are used, the Hall sensors used to sense the rotary movement can also be used to sense the longitudinal movement. In this way, no separate sensor system for sensing longitudinal positions is required, which can be taken by the operating body.
- the at least one Hall sensor can thus be designed to sense a change in the characteristic of the magnetic field that can be brought about by the rotary movement and by the longitudinal movement.
- the Hall sensor device comprises only a single 3D Hall sensor.
- a sensor can be suitable for sensing a three-dimensional vector of the magnetic flux density of the magnetic field.
- This single sensor can be used to sense both longitudinal positions and rotary positions that can be taken by the operating body.
- a method for determining a switching position of a rotary switch with a control body which is movably mounted in order to be able to carry out a rotary movement about an actuation axis of the control body and a longitudinal movement along the control axis, the control body having a magnetic device for providing a magnetic field the following steps include:
- the steps of the method can be carried out, for example, using a determination device.
- the determination device can be an electronic Guatemalal device that processes electrical signals, such as sensor signals and outputs control signals as a function thereof.
- the device can have one or more suitable interfaces, which can be formed from hardware and / or software.
- the interfaces can be part of an integrated circuit, for example, in which functions of the device are implemented.
- the interfaces can also be separate, integrated circuits or at least partially consist of discrete components.
- the interfaces can be software modules that are present, for example, on a microcontroller alongside other software modules.
- Figure 1 shows a vehicle with a rotary switch device according to an embodiment example.
- FIG. 2 shows a rotary switch device for a vehicle according to an embodiment.
- FIG. 3 shows a determination device of a rotary switch device according to an embodiment
- FIG. 4 shows a determination device of a rotary switch device according to an embodiment
- FIG. 5 shows a flowchart of a method for determining a switching position of a rotary switch according to an exemplary embodiment.
- the rotary switch device 102 is used to enable an operator to use a component 104 of the driving stuff 100, for example to operate an information system of the vehicle 100.
- the rotary switch device 102 is designed to output a position signal 106 which indicates a switch position of the rotary switch device 102.
- the position signal 106 is used by the component 104, or a control device to control a function of the component 104.
- the application of the rotary switch device 102 in the vehicle 100 is chosen in a playful manner.
- the rotary switch device 102 can generally be used to operate a machine.
- FIG. 2 shows a schematic illustration of a rotary switch device 102 according to an exemplary embodiment.
- it can be the rotary switch device 102 shown in FIG. 1 and arranged in a vehicle.
- the rotary switch device 102 has a rotary switch with an operating body 210 which can be operated by an operator.
- the operating body 210 is movably mounted in a suitable bearing device 212 and can be rotated and pressed by the operator.
- the rotary switch is designed in such a way that the operating body 210 can perform a rotary movement 214 and a longitudinal movement 216 about an actuation axis 218.
- the operating body 210 is cylindrical.
- the operating body 210 comprises a magnet device 220, for example a permanent magnet.
- the magnet device 220 is designed to provide a magnetic field.
- the Magneteinrich device 220 is moved.
- the Magneteinrich device 220 is formed as a ring magnet that surrounds the control body 220 ring-shaped example.
- the rotary switch device 102 has a Hall sensor device 222, which is decoupled from the operating body 210.
- Hall sensor device 222 is attached to bearing device 212 as an example.
- the Hall sensor device 222 is designed in order to detect a characteristic of the magnetic field provided by the magnetic device 220 and to provide a sensor signal 224 representing the characteristic.
- the characteristic of the magnetic field changes when the operating body 210 moves, so that the sensor signal 224 is suitable for indicating a movement and additionally or alternatively a position, also referred to as a position, of the operating body 210.
- the Hall sensor device 222 comprises only one Hall sensor or two or more Hall sensors.
- the Hall sensor device 222 comprises one or more 3D Hall sensors.
- the sensor signal 224 can thus also consist of one or more individual signals.
- the at least one Hall sensor of the Hall sensor device is designed according to one embodiment, for example, to sense a change in the characteristic of the magnetic field which can be brought about by the rotary movement 214 and a change which can be brought about by the longitudinal movement 216.
- the characteristic is a size and / or direction of the magnetic flux density of the magnetic field.
- the rotary switch device 102 also has a determination device 226.
- the determination device 226 is designed to use the sensor signal 224 to determine a position signal 106 which indicates the position of the operator 210.
- the position signal 106 is designed to indicate a rotational position of the operating body 210 around the actuating axis 218 and a longitudinal position of the operating body 210 along the actuating axis 218.
- the determination device 226 is designed to determine the position signal 106 using a temperature signal 230 which, for example, indicates a current ambient temperature on the operating body 210.
- the temperature signal 230 is provided, for example, by a temperature sensor 232, which can be part of the rotary switch device 102.
- the determination device 226 is designed to determine the position signal using a predetermined position, at for example, to determine a predetermined reference position 234 assigned to a predetermined rotational position and / or a predetermined longitudinal position of the operating body 210.
- the predetermined reference value 234 is stored in a memory 236, which can be part of the rotary switch device 102.
- the determination device 226 is designed to determine the predetermined reference value 234 in response to a calibration signal 238 using the sensor signal 224.
- a calibration process includes that the operating body 210 is brought into a predetermined position and then the sensor signal 224 or a signal based on the sensor signal 224 is stored as the predetermined reference value 234.
- the calibration signal 238 shows, for example, that the operating body 210 has been brought into the predetermined position.
- a plurality of reference values 234 are used, which are assigned to different switch positions. For example, a first value indicates that the operating body is neither pressed nor twisted, a second value indicates that the operating body is not pressed but is twisted, a third value indicates that the operating body is pressed but not twisted, and a fourth value indicates that the operating body is pressed and twisted. By rotating the operating body, the operating body can be locked in the current longitudinal position, for example.
- the rotary switch device 102 is designed to provide a so-called pushdown function for the rotary switch with detection of several different vertical positions.
- the various vertical positions can be adjusted by the longitudinal movement 216 of the operating body 210.
- the rotary switch device 102 enables the pushdown function to be made available without additional sensors or switches or other mechanical contacts or levers which would be required in addition to one or more sensors which sense the rotary movement 214.
- the rotary movement 214 is detected, for example, by one or more 2D or 3D Hall sensor (s) of the Hall sensor device 222, which detect the magnetic field of the magnet device 220, for example a ring magnet.
- no sliding contacts, slip rings, levers or similar elements which would actuate additional contacts are advantageously used to detect the vertical position.
- the vertical position is also recognized via 2D or 3D sensors according to one embodiment.
- the third dimension is recognized, for example, via the field strength of the magnetic field provided by the magnetic device 220.
- the sensors that is to say the Hall sensor device 222 and / or the determination device 226, are taught in to determine the exact field strengths of the magnet device 220 at a predetermined temperature, for example at room temperature.
- the stored switching points are shifted, for example in the form of the reference value 234 or more reference values, as a function of the current temperature.
- additional temperature compensation enables lightly detectable positions.
- Such measures allow a stable distinction to be made between below and above, that is to say whether the operating body 210 is in a depressed or extended position.
- the bearing device 212 comprises a blocking mechanism, which makes it possible to block the pressed operating body 210 in the pressed position by the rotary movement 214.
- the rotary switch device 102 is designed to recognize the following positions of the operating body 210:
- the position signal 106 is designed to display the stated position or, according to further exemplary embodiments, additional and / or further positions of the operating body 210.
- a reference value can be recorded, for example, when the rotary switch device is started up and stored as a predetermined reference value.
- FIG. 3 shows a determination device 226 of a rotary switch device according to an exemplary embodiment. This is, for example, a determination device 226, as shown with reference to FIG. 2.
- the determination device 226 is designed to receive or read in a sensor signal 224 and to use the sensor signal 224 to provide a position signal 106 which, as described with reference to FIG. 2, indicates one or more switch positions of the rotary switch device.
- the determination device 226 comprises a first determination device 340 and a second determination device 342.
- the first determination device 340 is designed to determine a temperature-compensated sensor signal 344 using the sensor signal 224 and a temperature signal 230, as is described by way of example with reference to FIG. 2.
- the second determination device 342 is designed to determine the position signal 106 using the temperature-compensated sensor signal 344. In this way, influences caused by different temperatures, which make it difficult to detect the switch position, can be compensated for.
- the second determination device 342 is designed to determine the position signal 106 using at least one predetermined reference value 234, as is described, for example, with reference to FIG. 2.
- the temperature-compensated sensor signal 342 can be compared to the at least one predetermined reference value 234, and the position signal 106 can be determined using a result of the comparison or map the result.
- FIG. 4 shows a determination device 226 of a rotary switch device according to an exemplary embodiment. This is, for example, a determination device 226, as shown with reference to FIG. 2.
- the determination device 226 is designed to receive or read in a sensor signal 224 and to use the sensor signal 224 to provide a position signal 106 which, as described with reference to FIG. 2, indicates one or more switch positions of the rotary switch device.
- the determination device 226 comprises a third determination device 440 and a fourth determination device 442.
- the third determination device 440 is designed to use at least one predetermined reference value 234, as is described for example with reference to FIG. 2, and a temperature signal 230 as is It is described by way of example with reference to FIG. 2 to determine a temperature-compensated reference value 444.
- the predetermined reference value 234 which defines, for example, an association between a predetermined switch position and a signal state of the sensor signal 224 at a predetermined temperature, for example at room temperature, can be adapted to a changed temperature indicated by the temperature signal 230.
- a lookup table or an adjustment rule can be used.
- the fourth determination device 442 is designed to determine the position signal 106 using the sensor signal 224 and the temperature-compensated reference value 444.
- the sensor signal 342 can be compared with the at least one temperature-compensated reference value 444, and the position Signal 106 may be determined using a result of the comparison, or map the result.
- FIG. 5 shows a flowchart of a method for determining a switching position of a rotary switch according to an exemplary embodiment. The method can be carried out for example using devices of a rotary switch device, as described with reference to the previous figures.
- a sensor signal becomes an via an interface
- Read in the fall sensor device which is designed to provide a sensor signal representing a characteristic of a magnetic field.
- the magnetic field can be provided by a magnetic device, as described for example with reference to FIG. 2.
- a position signal is determined using the sensor signal.
- the position signal shows a switch position of the rotary switch, for example a rotational position of the control body of the rotary switch about the actuation axis and a longitudinal position of the control body along the actuation axis.
- Steps 550, 552 can be continuously repeated or, for example, in response to an actuation of the operating body. In this way, the position signal can always indicate a current switch position of the rotary switch device.
- an exemplary embodiment comprises a “and / or” link between a first feature and a second feature
- this can be read in such a way that the embodiment according to one embodiment has both the first feature and the second feature and according to a further embodiment either only that has the first feature or only the second feature.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018210830.7A DE102018210830A1 (de) | 2018-07-02 | 2018-07-02 | Drehschaltervorrichtung für ein Fahrzeug und Verfahren zum Ermitteln einer Schaltstellung eines Drehschalters |
| PCT/EP2019/067443 WO2020007749A1 (de) | 2018-07-02 | 2019-06-28 | Drehschaltervorrichtung für ein fahrzeug und verfahren zum ermitteln einer schaltstellung eines drehschalters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3818634A1 true EP3818634A1 (de) | 2021-05-12 |
Family
ID=67539405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19749201.0A Withdrawn EP3818634A1 (de) | 2018-07-02 | 2019-06-28 | Drehschaltervorrichtung für ein fahrzeug und verfahren zum ermitteln einer schaltstellung eines drehschalters |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20210265996A1 (de) |
| EP (1) | EP3818634A1 (de) |
| CN (1) | CN112400278A (de) |
| DE (1) | DE102018210830A1 (de) |
| WO (1) | WO2020007749A1 (de) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100587014B1 (ko) * | 2004-11-26 | 2006-06-08 | 삼성전기주식회사 | 다이나믹 어퍼처 구동 장치 및 그 제어 방법 |
| DE102006057310A1 (de) * | 2006-12-05 | 2008-06-12 | Cherry Gmbh | Eingabemodul und Verfahren zum Betrieb eines Eingabemoduls |
| KR100947171B1 (ko) * | 2008-02-13 | 2010-03-12 | 대성전기공업 주식회사 | 비접촉 로터리 스위치 유니트 |
| DE102008000943B4 (de) * | 2008-04-02 | 2015-02-19 | Zf Friedrichshafen Ag | Diagnostizierbarer Hallsensor und Verfahren zur Funktionsdiagnose einer Hall-Sensoreinrichtung |
| KR101869719B1 (ko) * | 2014-09-15 | 2018-06-21 | 엘에스산전 주식회사 | 전자접촉기 |
| GB2567825A (en) * | 2017-10-24 | 2019-05-01 | Albright International Ltd | Electrical relay |
| US11527375B2 (en) * | 2020-01-06 | 2022-12-13 | Hamilton Sundstrand Corporation | Relay contactor with combined linear and rotation motion |
-
2018
- 2018-07-02 DE DE102018210830.7A patent/DE102018210830A1/de not_active Withdrawn
-
2019
- 2019-06-28 US US17/253,947 patent/US20210265996A1/en not_active Abandoned
- 2019-06-28 WO PCT/EP2019/067443 patent/WO2020007749A1/de not_active Ceased
- 2019-06-28 CN CN201980044582.4A patent/CN112400278A/zh active Pending
- 2019-06-28 EP EP19749201.0A patent/EP3818634A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| US20210265996A1 (en) | 2021-08-26 |
| CN112400278A (zh) | 2021-02-23 |
| DE102018210830A1 (de) | 2020-01-02 |
| WO2020007749A1 (de) | 2020-01-09 |
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