CN110312916B - Sensor device for determining the position of an actuator in a motor vehicle and method for operating a sensor device - Google Patents

Sensor device for determining the position of an actuator in a motor vehicle and method for operating a sensor device Download PDF

Info

Publication number
CN110312916B
CN110312916B CN201880012145.XA CN201880012145A CN110312916B CN 110312916 B CN110312916 B CN 110312916B CN 201880012145 A CN201880012145 A CN 201880012145A CN 110312916 B CN110312916 B CN 110312916B
Authority
CN
China
Prior art keywords
sensor
permanent magnet
circuit
sensor device
actuator
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.)
Active
Application number
CN201880012145.XA
Other languages
Chinese (zh)
Other versions
CN110312916A (en
Inventor
马库斯·迪特里希
马丁·齐默尔曼
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schaeffler Technologies AG and Co KG
Original Assignee
Schaeffler Technologies AG and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Schaeffler Technologies AG and Co KG filed Critical Schaeffler Technologies AG and Co KG
Publication of CN110312916A publication Critical patent/CN110312916A/en
Application granted granted Critical
Publication of CN110312916B publication Critical patent/CN110312916B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • G01D5/142—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
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00—External control of clutches
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00—External control of clutches
    • F16D48/06—Control by electric or electronic means, e.g. of fluid pressure
    • 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
    • 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
    • G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
    • G01D3/08—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups with provision for safeguarding the apparatus, e.g. against abnormal operation, against breakdown
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2300/00—Special features for couplings or clutches
    • F16D2300/18—Sensors; Details or arrangements thereof
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/10—System to be controlled
    • F16D2500/102—Actuator
    • F16D2500/1021—Electrical type
    • F16D2500/1022—Electromagnet
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/30—Signal inputs
    • F16D2500/302—Signal inputs from the actuator
    • F16D2500/3022—Current
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/30—Signal inputs
    • F16D2500/302—Signal inputs from the actuator
    • F16D2500/3028—Voltage
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/70—Details about the implementation of the control system
    • F16D2500/704—Output parameters from the control unit; Target parameters to be controlled
    • F16D2500/70402—Actuator parameters
    • F16D2500/7041—Position
    • 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
    • G01D2205/00—Indexing scheme relating to details of means for transferring or converting the output of a sensing member
    • G01D2205/10—Detecting linear movement
    • G01D2205/14—Detecting linear movement by converting the linear movement into a rotary movement

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

The invention relates to a sensor device for determining the position of an actuator in a motor vehicle, wherein the sensor device comprises a voltage source of the motor vehicle, which also supplies an operating voltage when an ignition device is switched off; wherein the sensor device has at least one multi-turn sensor which is suitable for identifying the number of revolutions of the permanent magnet; the actuator is connected to a first circuit which is supplied with operating voltage only when the ignition device is switched on, and the multiturn sensor is connected to a second circuit which is also supplied with operating voltage when the ignition device is switched off.

Description

Sensor device for determining the position of an actuator in a motor vehicle and method for operating a sensor device
Technical Field
The present invention relates to a sensor device for determining the position of an actuator (or an actuating unit of an actuator) in a motor vehicle and to a method for operating a sensor device. In particular, the sensor device is provided for determining the position of the clutch actuator. The clutch actuator is provided in particular for actuating a clutch, for example a friction clutch, of a motor vehicle. In particular, the actuator has a transmission without sliding, i.e. for example comprises a spindle drive.
Background
The position of the actuator can be determined from the number of revolutions of a permanent magnet arranged on the spindle drive, for example by means of a multiturn sensor. A more accurate determination of the position of the actuator is possible via an additional rotor position sensor. The rotor position sensor determines the angular position of the permanent magnet within one revolution of the permanent magnet. The permanent magnet is in particular arranged rotatably relative to the stationary sensor.
The spindle drive comprises, for example, a rotor of an electric motor, which is connected in a rotationally fixed manner to a permanent magnet, so that the number of revolutions of the rotor can be determined via a multiturn sensor. The position of the actuating unit of the actuator in the axial direction, which is displaceable in the axial direction, can be determined in particular via the number of revolutions of the rotor.
Motor vehicles typically include a voltage source and a plurality of electrical circuits. For example, the first circuit is supplied with the operating voltage of the voltage source only when the ignition of the motor vehicle is switched on. This prevents the voltage source from discharging when the motor vehicle is stopped within a short time. The first circuit is thus connected to the so-called terminal stud 15.
The second circuit is connected to a so-called terminal post 30. The terminal 30 (also referred to as the positive terminal (Dauerplus) or B +) represents a terminal on which a battery voltage is permanently applied in the vehicle electrical system of the motor vehicle. When the battery is inserted and clamped, electrical power is available at the branch of the cable harness even if the ignition is switched off and the ignition key is removed (e.g. a warning flash).
The actuator is normally connected to the terminal 15, i.e. is supplied with current only when the ignition is switched on. For this reason, the actuator is now referenced after each "firing" operation, i.e. moved to the initial position, so that the multiturn sensor can determine the position of the actuator starting from the initial position. Additionally, the referencing can be performed only if: for example below the operating voltage. The referencing is time consuming.
Disclosure of Invention
The invention is based on the object of at least partially solving the problems known from the prior art. In particular, a sensor device and a method for operating a sensor device are to be proposed, in which the actuator is to be brought into a ready-to-operate state as soon as possible.
A sensor device for determining the position of an actuator in a motor vehicle is proposed, wherein the sensor device comprises a voltage source of the motor vehicle, which also supplies an operating voltage when an ignition is switched off. The sensor device has at least one multi-turn sensor, which is suitable for detecting the number of revolutions of the permanent magnet; wherein the actuator is connected to a first circuit which is supplied with operating voltage only when the ignition device is switched on; wherein the multiturn sensor is connected to a second circuit which is supplied with the operating voltage even when the ignition is switched off.
The provision of a multiturn sensor in the second circuit at the second terminal makes it possible to sense the movement of the permanent magnet permanently on the one hand and to store the number of revolutions measured by the multiturn sensor on the other hand.
The current consumption of the multiturn sensor is very low, since the multiturn sensor only has to sense the movement of the permanent magnet. For this reason, the connection of the multiturn sensor to the second circuit when the ignition device is kept off is also not problematic in view of the possible discharge of the voltage source.
During the closing phase of the ignition device, the position of the permanent magnet needs to be continuously checked by the multiturn sensor, since the actuator can be displaced, for example, as a result of vibrations of the motor vehicle or as a result of the elasticity present in the actuator or in a system connected to the actuator.
In particular, the multiturn sensor is connected in parallel with at least one capacitor, wherein the multiturn sensor and the capacitor are connected in series with the second circuit via a diode.
Via the capacitor, the multi-turn sensor can also be provided with a sufficient operating voltage and a sufficient current if: for example, a (short-term) interruption of the voltage supply of the voltage source. Such a disruption in the voltage supply is observed, for example, in hybrid vehicles. This can be attributed, for example, to the temporary switching on of an electrical load (e.g., an electric drive unit which provides a large torque for a short time to drive a motor vehicle).
In particular, the capacitor has a capacitance of 1 to 100 microfarads, preferably 20 to 50 microfarads.
The diode prevents the energy stored in the capacitor from flowing out via possible further consumers, which are provided, for example, in the second circuit.
In particular, the reliability of the measured values of the multiturn sensor can also be checked. In particular, for this purpose, the voltages respectively present on the second circuit can be checked. For this purpose, the voltages U respectively present on the second circuitSK2Should always correspond at least to the desired operating voltage U of the multi-turn sensorMTAnd diode voltage UDThe sum of the constituents; i.e. USK2≥UMT+UD. If the condition should not exist, then it is possible to continue checking: at least whether the energy stored in the capacitor is sufficient to enable the voltage U provided by the capacitor to the multi-turn sensorCCorresponding at least to the required operating voltage U of the multi-turn sensorMT(ii) a Namely UC≥UMT。
Accordingly, if USK2＜UMT+UDAnd if UC＜UMTThen the measured value of the multi-turn sensor is not trusted.
If it is identified that the measured value is not authentic, no reference is required. Since the states occur only very rarely, the reference here will require a longer time. The operation of the actuator can thereby be carried out significantly more slowly, so that the mechanical stops in the actuator can be designed less firmly.
According to an advantageous further development of the sensor device, the sensor device comprises a rotor position sensor which is suitable for detecting an angular position of the permanent magnet within one revolution of the permanent magnet, wherein the rotor position sensor is connected to the second circuit via a voltage regulator.
The rotor position sensor is in principle only required if: the information provided via the multi-turn sensor about the position of the actuator is considered to be less accurate than necessary.
The rotor position sensor can now also be arranged (as is known) on the first circuit, so that the voltage supply is present only when: the ignition is switched on. However, it is proposed that the rotor position sensor is also provided in the second circuit. The rotor position sensor is not supplied with an operating voltage, but only when the movement of the permanent magnet is sensed, for example via a multiturn sensor. The adjustment of the operating voltage of the rotor position sensor can be made via a voltage regulator associated with the rotor position sensor. Possibly, a capacitor is also provided here in parallel with the rotor position sensor, so that the electrical energy which may be required can be reliably made available.
It is also proposed that in the sensor device
At least one multi-turn sensor, or
-additionally a rotor position sensor
Additionally connected to the first circuit.
Thereby, the voltage supply can be ensured even if, for example, a safety device of the second circuit fails and thus a loss of information about the position of the actuator can be expected due to an insufficient voltage supply in the second circuit.
A method is proposed for operating a sensor device, in particular as described above, wherein the sensor device comprises a voltage source of a motor vehicle, which supplies an operating voltage even when the ignition is switched off. The sensor device has at least one multi-turn sensor, which is suitable for detecting the number of revolutions of the permanent magnet; the actuator is connected to a first circuit, which is supplied with operating voltage only when the ignition device is switched on; wherein the multiturn sensor is connected to a second circuit which is supplied with the operating voltage even when the ignition is switched off. In the method, the multiturn sensor checks the position of the permanent magnet even when the ignition is switched off.
The implementation of the sensor device is also suitable for the method proposed here.
In particular, the multiturn sensor checks the position of the actuator at predetermined time intervals (discontinuous check). Preferably, the required electrical energy is provided for this in a time interval of at least 100 milliseconds and/or at most 500 milliseconds. In particular, the time interval is chosen such that a full revolution of the permanent magnet is not expected within the time interval. Whereby a revolution can be reliably determined.
It is also proposed that, by means of a multiturn sensor, the position of the permanent magnet is continuously checked if the rotational speed of the permanent magnet is sensed. The continuous test can be converted into a discontinuous test again after a further predefinable period of time in which no rotational speed of the permanent magnet is sensed.
In particular, the sensor device comprises a rotor position sensor which is suitable for detecting the angular position of the permanent magnet within one revolution of the permanent magnet, wherein the rotor position sensor is connected to the second circuit via a voltage regulator, wherein the rotor position sensor checks the position of the permanent magnet only when the ignition device is switched on or only shortly after the rotational speed of the permanent magnet is determined by means of the multiturn sensor.
Preferably, the sensor device comprises a rotor position sensor adapted to identify the angular position of the permanent magnet within one revolution of the permanent magnet, wherein the rotor position sensor is connected to the second circuit via a voltage regulator, wherein the measurements of the multi-turn sensor and the measurements of the rotor position sensor are compared in a control unit of the sensor device. By means of comparative measurements, it is possible to reduce the rotor position sensor, which is usually designed as a double core, to a single core.
It is noted that embodiments for the sensor device are also suitable for the method described herein, and vice versa.
Precautions should be taken to: the ordinal numbers ("first", "second", … …) used herein are used in particular (exclusively) to distinguish a plurality of similar objects, variables or processes, i.e., to not enforce a predetermined correlation and/or order of the objects, variables or processes with respect to one another. If dependency and/or order is necessary, it is expressly stated herein or disclosed to one of ordinary skill in the art in the context of learning a specifically described design.
Drawings
The present invention and the technical scope are hereinafter explained in detail with reference to the accompanying drawings. It is to be noted that the invention should not be limited by the illustrated embodiments. In particular, it is also possible, unless otherwise specified in detail, to extract sub-aspects from the facts set forth in the figures and to combine them with other components and knowledge in the present description and/or in the figures. In particular, it is to be noted that the figures and the particularly shown size relationships are merely schematic. The same reference numerals denote the same objects, so that explanations from other figures can be used supplementarily if necessary. The figures show:
fig. 1 shows a first circuit diagram of a sensor device; and
fig. 2 shows a second circuit diagram of the sensor device.
Detailed Description
Fig. 1 shows a first circuit diagram of a sensor device 1. The sensor device 1 comprises a voltage source 2 of the motor vehicle, which also supplies an operating voltage 3 when the ignition is switched off. The sensor device 1 has a multi-turn sensor 4 which is suitable for detecting the number of revolutions of a permanent magnet 5; wherein the actuator is connected to a first circuit 6 which is supplied with the operating voltage 3 only when the ignition is switched on (for example to the terminal 15), wherein the multiturn sensor 4 is connected to a second circuit 7 (i.e. to the terminal 30) which is supplied with the operating voltage 3 (volts) even when the ignition is switched off.
The arrangement of multi-turn sensor 4 in second circuit 7 at second terminal 30 makes it possible to implement multi-turn sensor 4 on the one hand to permanently sense the movement of permanent magnet 5 and on the other hand to store the value of the number of revolutions measured by multi-turn sensor 4.
The current consumption of the multiturn sensor 4 is very low, since it only has to sense the movement of the permanent magnet 5. For this reason, the connection of the multiturn sensor 4 to the second circuit 7 when the ignition is kept off is also not problematic in view of the possible discharge of the voltage source 2.
During the closing phase of the ignition device, the position of the permanent magnet 5 needs to be permanently checked by the multiturn sensor 4, since the actuator can be displaced, for example, as a result of vibrations of the motor vehicle or as a result of the elasticity present in the actuator or in a system connected to the actuator.
The multiturn sensor 4 is connected in parallel with a capacitor 8, the multiturn sensor 4 and the capacitor 8 being connected in series with the second circuit 7 via a diode 9.
Via the capacitor 8, the multi-turn sensor 4 is able to provide a sufficient operating voltage 3 and a sufficient current even if: for example, a (short-term) interruption of the voltage supply of the voltage source 2. Such an interruption of the voltage supply is observed, for example, in hybrid vehicles. This can be attributed, for example, to the temporary switching on of an electrical load (e.g., an electric drive unit which provides a large torque for a short time to drive the motor vehicle).
The diode 9 prevents the energy stored in the capacitor 8 from flowing out via possible further consumers, which are provided, for example, in the second circuit 7.
The reliability of the measured values of the multiturn sensor 4 can also be checked. For this purpose, the voltages respectively present at the second circuit 7 can be checked. For this purpose, the voltages U are respectively present at the second circuit 7SK2Should always correspond at least to the required operating voltage U of the multi-turn sensorMTAnd diode voltage UDThe sum of the constituents; namely USK2≥UMT+UD. If said condition should not exist, it is possible to continue checking whether the energy stored at least in the capacitor 8 is sufficient, so that the voltage U supplied by the capacitor 8 to the multi-turn sensor 4 is sufficientCCorresponding at least to the required operating voltage U of the multi-turn sensor 4MT(ii) a Namely UC≥UMT。
Accordingly, if USK2＜UMT+UDAnd if U isC＜UMTThen the measured value of the multi-turn sensor 4 is not trusted.
The sensor device 1 additionally comprises a rotor position sensor 10 which is suitable for detecting the angular position of the permanent magnet 5 within one revolution of the permanent magnet 5, wherein the rotor position sensor 10 is connected to the second circuit 7 via a voltage regulator 11.
The rotor position sensor 10 is in principle only required if: the information provided via the multi-turn sensor 4 about the position of the actuator is considered to be less accurate.
The rotor position sensor can now also be arranged (as is known) on the first circuit 6, so that the voltage supply is present only in the following cases: the ignition is switched on. Here, however, it is proposed that a rotor position sensor 10 is also provided in the second circuit 7. The rotor position sensor 10 is not supplied with the operating voltage 3, but only with the movement of the permanent magnet 5, for example, as sensed via the multiturn sensor 4. Said adjustment of the operating voltage of the rotor position sensor 10 can be made via a voltage regulator 11 associated with the rotor position sensor 10. In addition, a further capacitor 13 is also provided here in parallel with the rotor position sensor 10, so that the electrical energy which may be required can be reliably supplied.
Fig. 2 shows a second circuit diagram of the sensor device. Reference is made to the embodiment of figure 1. In contrast to fig. 1, an additional first electrical circuit 6 is shown here, which is connected to a terminal 15. In this case, the sensor arrangement 1 of the multiturn sensor 4 and the additional rotor capacitor 10 are additionally connected to the second circuit 6.
Thereby, the voltage supply is also ensured if, for example, a safety device of the second circuit 7 fails and thus a loss of information about the position of the actuator is expected due to an insufficient voltage supply in the second circuit 7.
List of reference numerals
1 sensor device
2 Voltage Source
3 operating voltage
4 multi-turn sensor
5 permanent magnet
6 first circuit
7 second circuit
8 capacitor
9 diode
10 rotor position sensor
11 Voltage regulator
12 control unit
13 other capacitors

Claims (8)

1. Sensor device (1) for determining the position of an actuator in a motor vehicle, wherein the sensor device (1) comprises a voltage source (2) of the motor vehicle, which voltage source also supplies an operating voltage (3) when an ignition is switched off; wherein the sensor device (1) has at least one multi-turn sensor (4) which is suitable for detecting the number of revolutions of a permanent magnet (5); wherein the actuator is connected to a first circuit (6) which is supplied with the operating voltage (3) only when the ignition is switched on, wherein the multiturn sensor (4) is connected to a second circuit (7) which is also supplied with the operating voltage (3) when the ignition is switched off; wherein the sensor device (1) comprises a rotor position sensor (10) adapted to identify an angular position of a permanent magnet (5) within one revolution of the permanent magnet (5), wherein the rotor position sensor (10) is connected to the second circuit (7) via a voltage regulator (11).
2. The sensor device (1) according to claim 1,
wherein the multi-turn sensor (4) is connected in parallel with at least one capacitor (8), wherein the multi-turn sensor (4) and the capacitor (8) are connected in series with the second circuit (7) via a diode (9).
3. Sensor device (1) according to claim 2,
wherein the capacitor (8) has a capacitance of 1 to 100 microfarads.
4. Sensor device (1) according to claim 1, wherein
-at least the multi-turn sensor (4), or
-said rotor position sensor (10)
Is connected to the first circuit (6).
5. Method for operating a sensor device (1) provided for determining the position of an actuator in a motor vehicle, wherein the sensor device (1) comprises a voltage source (2) of the motor vehicle, which also supplies an operating voltage (3) when an ignition device is switched off; wherein the sensor device (1) has at least one multi-turn sensor (4) which is suitable for detecting the number of revolutions of a permanent magnet (5); wherein the actuator is connected to a first circuit (6) which is supplied with the operating voltage (3) only when the ignition is switched on, wherein the multiturn sensor (4) is connected to a second circuit (7) which is also supplied with the operating voltage (3) when the ignition is switched off; wherein the multiturn sensor (4) also checks the position of the permanent magnet (5) when the ignition is switched off; wherein the sensor device (1) comprises a rotor position sensor (10) adapted to identify an angular position of the permanent magnet (5) within one revolution of the permanent magnet (5), wherein the rotor position sensor (10) is connected to the second circuit (7) via a voltage regulator (11), wherein the rotor position sensor (10) checks the position of the permanent magnet (5) only when the ignition device is switched on.
6. The method of claim 5, wherein the first and second light sources are selected from the group consisting of,
wherein the multi-turn sensor (4) checks the position at predetermined time intervals.
7. The method of claim 6, wherein the first and second light sources are selected from the group consisting of,
wherein the position of the permanent magnet (5) is continuously checked by the multi-turn sensor (4) when the rotational speed of the permanent magnet (5) is sensed.
8. The method according to claim 5 as set forth above,
wherein the sensor device (1) comprises a rotor position sensor (10) adapted to identify an angular position of a permanent magnet (5) within one revolution of the permanent magnet (5), wherein the rotor position sensor (10) is connected to the second circuit (7) via a voltage regulator (11), wherein a measurement of the multi-turn sensor (4) is compared with a measurement of the rotor position sensor (10) in a control unit (12) of the sensor device (1).
CN201880012145.XA 2017-02-15 2018-02-06 Sensor device for determining the position of an actuator in a motor vehicle and method for operating a sensor device Active CN110312916B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102017103035.2 2017-02-15
DE102017103035.2A DE102017103035A1 (en) 2017-02-15 2017-02-15 Sensor arrangement and method for operating a sensor arrangement for determining a position of an actuator in a motor vehicle
PCT/DE2018/100097 WO2018149446A1 (en) 2017-02-15 2018-02-06 Sensor arrangement and method for operating a sensor arrangement for determining a position of an actuator in a motor vehicle

Publications (2)

Publication Number Publication Date
CN110312916A CN110312916A (en) 2019-10-08
CN110312916B true CN110312916B (en) 2022-06-14

Family

ID=61244334

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201880012145.XA Active CN110312916B (en) 2017-02-15 2018-02-06 Sensor device for determining the position of an actuator in a motor vehicle and method for operating a sensor device

Country Status (4)

Country Link
KR (1) KR102581825B1 (en)
CN (1) CN110312916B (en)
DE (2) DE102017103035A1 (en)
WO (1) WO2018149446A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019110540A1 (en) * 2019-04-24 2020-10-29 Schaeffler Technologies AG & Co. KG Method for setting a position of an actuator after interruption of a voltage supply

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10145884B4 (en) 2001-09-18 2005-04-14 Hella Kgaa Hueck & Co. Electronic angle sensor
JP4123761B2 (en) * 2001-11-15 2008-07-23 松下電器産業株式会社 Rotation angle detector
US7262594B1 (en) * 2006-03-24 2007-08-28 Matsushita Electric Industrial Co., Ltd. Rotation angle detector
DE102008043249B3 (en) * 2008-10-29 2010-01-28 Zf Friedrichshafen Ag Actuator for parking brake
DE102008044245A1 (en) 2008-12-02 2010-06-10 Zf Lenksysteme Gmbh Circuit arrangement for driving a sensor
DE102010043449A1 (en) 2010-11-05 2012-05-10 Robert Bosch Gmbh Steering angle sensor for a power steering system of a motor vehicle and method
DE102012104989A1 (en) 2012-06-11 2013-12-12 Zf Lenksysteme Gmbh Method for continuously determining rotor position angle of electric motor of electronic power steering device, involves monitoring position of rotor, and processing measurement signals of rotor position sensors by signal processing circuit
DE102012019895A1 (en) * 2012-10-11 2014-04-17 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Method for controlling electro-mechanical clutch system in motor vehicle, involves limiting actuator speed to maximum acceptable actuator speed, which does not exceed by actuator, to maintain torque peak below predetermined maximum torque
JP2016118500A (en) * 2014-12-22 2016-06-30 日本精工株式会社 Rotation angle sensor, brushless motor equipped with rotation angle sensor, electric power steering device mounting brushless motor, and vehicle
CN106224108A (en) * 2016-08-29 2016-12-14 重庆隆鑫机车有限公司 Engine electric spray executor's self checking method and system

Also Published As

Publication number Publication date
CN110312916A (en) 2019-10-08
WO2018149446A1 (en) 2018-08-23
KR102581825B1 (en) 2023-09-25
KR20190117516A (en) 2019-10-16
DE102017103035A1 (en) 2018-08-16
DE112018000860A5 (en) 2019-10-24

Similar Documents

Publication Publication Date Title
US7999668B2 (en) Series interlock system with integrated ability to identify breached locations
US9600047B2 (en) Electronic control unit
CN107407699B (en) Battery management device, battery monitoring circuit, and control system
EP3252489A1 (en) Device and method for estimating state of battery
US11977117B2 (en) Battery electromechanical switching device diagnostics system and methods
US10215790B2 (en) Method for diagnosing an earth fault of a start/stop unit of a motor vehicle
CN110312916B (en) Sensor device for determining the position of an actuator in a motor vehicle and method for operating a sensor device
CN108377655B (en) Vehicle-mounted power supply device
KR20160110700A (en) Fault diagnosis apparatus for battery system
EP2980534B1 (en) Method of detecting wiring mismatch of resolver
CN105484922A (en) A method for detecting a not-opening start relay switch of a starter relay
CN107783455B (en) Knob process for gear
US6555930B1 (en) Device for automatically detecting a generator type of a motor vehicle
US6111380A (en) System for detecting abutment and blocking in a stepped motor
KR20200124786A (en) System and method for diagnosing battery sensor
US10670658B2 (en) Arrangement and method for detecting an electrical line interruption during operation of a drive system
US11365985B2 (en) Rotation detection device
US11204381B2 (en) Device and method for detecting a missing electrical connection of an energy store to an energy-supply system, particularly an electrical system of a motor vehicle
CN108362969B (en) Method and circuit arrangement for detecting the state of a load connected to a circuit connection
US8983788B2 (en) System and method of measuring a sensor offset
JP2019221022A (en) Battery monitoring device, battery monitoring system, and battery monitoring method
US11594996B2 (en) Method and device for maintaining a detected absolute position of an electric motor operating as an actuator during a critical operation
KR102660390B1 (en) Vehicle control apparatus
US10766441B2 (en) Charging rate monitoring apparatus for in-vehicle power supply, and in-vehicle power supply system
CN107843543B (en) Method and device for detecting corrosion in an at least partially conductive housing of an electrical energy storage unit

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant