WO2015165456A1 - Verfahren zur erkennung einer rotorlage eines elektromotors, ein target zur bestimmung der rotorlage des elektromotors und ein elektromotor - Google Patents
Verfahren zur erkennung einer rotorlage eines elektromotors, ein target zur bestimmung der rotorlage des elektromotors und ein elektromotor Download PDFInfo
- Publication number
- WO2015165456A1 WO2015165456A1 PCT/DE2015/200266 DE2015200266W WO2015165456A1 WO 2015165456 A1 WO2015165456 A1 WO 2015165456A1 DE 2015200266 W DE2015200266 W DE 2015200266W WO 2015165456 A1 WO2015165456 A1 WO 2015165456A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rotor
- sensor
- target
- electric motor
- geometric shape
- 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
- G01D5/24—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 capacitance
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/14—Electronic commutators
- H02P6/16—Circuit arrangements for detecting 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
- 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
-
- 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
- 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
- G01D5/22—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 differentially influencing two coils
- G01D5/2208—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 differentially influencing two coils by influencing the self-induction of the coils
- G01D5/2216—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 differentially influencing two coils by influencing the self-induction of the coils by a movable ferromagnetic element, e.g. a core
Definitions
- the invention relates to a method for detecting a rotor position of an electric motor, in which a target arranged on a rotor is scanned with a sensor, as well as a target for determining a rotor position of the electric motor and an electric motor.
- a magnetic encoder ring of a rotor position sensor system of an electrically commutated electric motor which has a predetermined number of magnetic poles with an alternating direction of magnetization.
- Such a magnetic encoder ring is scanned by a sensor system based on the physical principles of Hall effect, AMR or GMR measurement.
- the designed as a permanent magnet target but causes high costs for the magnetic raw material and is difficult to integrate into the rotor system, since the magnetic material is very brittle and directional expansion coefficients exist, which are very different for plastic and metal.
- WO 2010/084000 A1 discloses a method for the inductive generation of an electrical measuring signal as a function of a variable to be measured, such as e.g. for determining the path and / or the position in space and / or material properties of a test specimen to be detected.
- the invention is thus based on the object of specifying a method for determining the rotor position of an electric motor and an electric motor, in which a determination of the rotor position can be ensured inexpensively and nevertheless with a reliable measurement signal of the sensor.
- the object is achieved in that the rotor position during the
- Rotary movement of the rotor is detected with an inductive or a capacitive sensor.
- This has the advantage that can be dispensed with a target, which is made of expensive magnetic material.
- a precise determination of the rotor position of the electric motor during one revolution of the electric motor can be detected by means of inductive and capacitive sensors.
- the position of the rotor is detected by measuring a distance between the target and the sensor which changes as the rotational movement of the rotor is measured. This allows for a particularly robust design, the reliable measurement of a highly accurate sensor signal.
- the position of the rotor can be determined by scanning a projected area formed by a unique geometric shape.
- magnet-free, cost-effective materials are used, which significantly reduces the cost of the measurement process.
- a development of the invention relates to a target for determining a position of a rotor, preferably an electric motor, which can be scanned by a sensor.
- a target in which a reliable measurement signal can be scanned easily is characterized by a geometry that is unique over one revolution of the rotor.
- a revolution of the electric motor which mechanically corresponds to an angle change of the rotor shaft of 360 °, in the changing shape clearly resolved, so that a clear relationship to the position of the rotor shaft during a revolution of these can be produced.
- the unique geometric shape of the target is formed three-dimensionally and extends along the axis of rotation of the rotor, wherein the sensor detects a changing as a result of rotational movement of the rotor distance between the target and sensor.
- care must be taken that the distance changes at each angle of rotation of the rotor shaft in order to be able to establish a clear relationship between the target and the sensor signals.
- the three-dimensional shape of the target is formed snail-like, the slope increases or decreases continuously or stepwise within a rotation angle of 360 °.
- This linearization ensures the requirement of the clear assignment of the position of the rotor shaft to the sensor signal.
- the Output signal of the sensor are taken into account, which can be further processed analog or digital.
- the unique geometric shape is arranged on a carrier layer consisting of electrically conductive material, wherein the electrically non-conducting geometric shape partially covers the carrier layer.
- the two-dimensional shape of the target is designed as an Archimedean spiral.
- the sensor is sensitive only on the projected area, which entails reliable detection of the rotor position.
- a further variant of the invention relates to an electric motor, preferably an electrically commutated motor, comprising a rotor which moves with the rotor shaft and to which a target, which can be scanned by a sensor, is arranged in a rotationally fixed manner.
- the target is disposed on a front side of the rotor shaft and has a unique over a revolution of the rotor shaft geometric shape, which from the axial to the rotor shaft the end face aligned sensor is scanned.
- the senor is designed as an inductive or capacitive sensor.
- FIG. 1 shows a schematic diagram of an automated clutch in a motor vehicle
- FIG. 2 shows a first exemplary embodiment of the target according to the invention, 3 output signal of an inductive sensor,
- the clutch actuation system 1 shows a schematic diagram of an automated clutch actuation system 1, as used in motor vehicles.
- the clutch actuation system 1 in this case has a control unit 2, which controls an electric motor 3, which is electrically commutatable.
- the electric motor 3 is connected to a gear 4 in the form of a threaded spindle, which in turn leads to the clutch actuator 5.
- a rotor of the electric motor 3 is set in a rotational movement, which is transmitted to the transmission 4.
- the rotational movement is converted by the transmission 4 into a linear movement, with which the clutch contained in the clutch actuating device 5, not shown, is moved.
- an inductive sensor 7 is arranged axially aligned with the rotor shaft 6. This sensor 7 detects the surface of the end face of the rotor shaft 6, on which a target 8 is arranged.
- a first embodiment of the target 8 is shown in FIG.
- the fixed on the front side of the rotor shaft 6 target 8 is formed snail-like, wherein the slope 12 of the target 8 in a revolution of the rotor shaft 6 by 360 ° linearly decreases.
- the inductive sensor 7 detects this change in pitch, which is reflected in a change in distance between the end face of the rotor shaft 6 and sensor 7 over a revolution of 360 °.
- a differential measurement of two sensor heads 9, 10 of the inductive sensor 7 can be used.
- the target 8 two oppositely directed slopes 1 1, 12, wherein each slope 1 1, 12 is scanned by means of another sensor head 9, 10.
- the sensitive points of the two sensor heads 9, 10 are denoted by S1 and S2 in FIG.
- the sensor heads 9, 10 output signals, which are shown in Fig. 3. Over a revolution, each sensor head 9, 10 outputs a linear output signal.
- the distance between the slope 1 1, 12 of the target 8 and the sensor 7 corresponds to the angle of rotation.
- the two individual measured values from the two oppositely directed slopes 1 1, 12 are normalized to the sum of the distance between the two sensor heads 9, 10. 4 shows a second exemplary embodiment of the target 8 according to the invention
- Front side of the rotor shaft 6 is partially coated with an electrically conductive material 13, wherein the rotor shaft 6 itself consists of an insulating base material, such as plastic.
- an electrically conductive material 13 In addition to the coating with an electrically conductive material 13 and a vapor deposition of the end face of the rotor shaft 6 is conceivable.
- This two-dimensional mold 14 is made of an electrically non-conductive material.
- This Archimedean spiral is arranged on the end face that the sensor 15, which scans the front side, detects only slightly electrically conductive material 13 at 0 ° and thus emits only a small output signal, while at a revolution of 360 °, the rotor shaft 6 a large Surface of the electrically conductive material 13 scans, which is why the inductive sensor 15 outputs a large output signal.
- the sensitive point in which the inductive sensor 15 scans the end face is determined depending on the application, but it must be ensured that an unambiguous assignment of the end face over a revolution of the rotor shaft 6 is detected.
- the inductive sensor 15 is sensitive only on the projected surface of the electrically conductive material.
- the 360 ° mechanically resolved the rotation of the rotor shaft in a changing shape applies that the 360 ° mechanically resolved the rotation of the rotor shaft in a changing shape.
- the 360 ° mechanical can also be divided by pole pairs and accordingly the number of sensing surfaces can be mechanically imaged to 360 °. Due to this advantageous position determination of the electric motor 3 commutation is to be significantly improved.
- a rotor position sensor for commutation and position determination of the electrically commutated electric motor is thus easily possible in an actuator by means of inductive and capacitive measurement.
- this method offers the advantages of getting along without permanent magnet and eliminating disturbances, such as vertical and tangential position change in the rotor position sensor. This method can be used with the special targets for angle detection.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/303,875 US10119838B2 (en) | 2014-04-30 | 2015-04-20 | Method for identifying the position of a rotor of an electric motor, target for determining the position of a rotor of the electric motor and electric motor |
DE112015002041.1T DE112015002041A5 (de) | 2014-04-30 | 2015-04-20 | Verfahren zur Erkennung einer Rotorlage eines Elektromotors, ein Target zur Bestimmung der Rotorlage des Elektromotors und ein Elektromotor |
JP2016565335A JP2017516990A (ja) | 2014-04-30 | 2015-04-20 | 電動モータのロータ位置を識別する方法、電動モータのロータ位置を決定するためのターゲットおよび電動モータ |
CN201580023371.4A CN106256083B (zh) | 2014-04-30 | 2015-04-20 | 用于识别电动机的转子位置的方法、用于确定电动机的转子位置的靶标和电动机 |
KR1020167030092A KR20160146758A (ko) | 2014-04-30 | 2015-04-20 | 전동기 회전자의 위치 인식 방법, 전동기 회전자의 위치 결정을 위한 타깃, 및 전동기 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014208204.8 | 2014-04-30 | ||
DE102014208204 | 2014-04-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015165456A1 true WO2015165456A1 (de) | 2015-11-05 |
Family
ID=53610727
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2015/200266 WO2015165456A1 (de) | 2014-04-30 | 2015-04-20 | Verfahren zur erkennung einer rotorlage eines elektromotors, ein target zur bestimmung der rotorlage des elektromotors und ein elektromotor |
Country Status (6)
Country | Link |
---|---|
US (1) | US10119838B2 (de) |
JP (1) | JP2017516990A (de) |
KR (1) | KR20160146758A (de) |
CN (1) | CN106256083B (de) |
DE (1) | DE112015002041A5 (de) |
WO (1) | WO2015165456A1 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016140149A1 (ja) * | 2015-03-05 | 2016-09-09 | 日立オートモティブシステムズ株式会社 | 位置検出装置 |
CN107401975A (zh) * | 2016-05-18 | 2017-11-28 | 法国大陆汽车公司 | 用于对旋转的机械部件进行角度测量的线性感应式位置传感器 |
WO2018006901A1 (de) * | 2016-07-05 | 2018-01-11 | Schaeffler Technologies AG & Co. KG | Verfahren und vorrichtung zur ermittlung einer umdrehungszahl und einer winkelposition eines um eine drehachse verdrehbaren bauteils |
WO2019201375A1 (de) | 2018-04-20 | 2019-10-24 | Schaeffler Technologies AG & Co. KG | Verfahren zur bestimmung eines zustandes einer parksperre eines fahrzeuges |
US11873870B2 (en) | 2019-09-27 | 2024-01-16 | Schaeffler Technologies AG & Co. KG | Method for controlling a friction clutch, and torque transmission device comprising same |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109163676A (zh) * | 2018-09-29 | 2019-01-08 | 中国煤炭科工集团太原研究院有限公司 | 一种掘进机悬臂回转角检测方法和装置 |
CN110132577B (zh) * | 2019-05-29 | 2020-11-06 | 河北科技大学 | 齿轮箱传动性能检测系统及齿轮箱传动性能检测方法 |
CN110307789B (zh) * | 2019-07-19 | 2021-09-07 | 哈尔滨工业大学 | 一种基于磁悬浮的浮子周向角位移可控装置 |
GB2616606A (en) * | 2022-03-14 | 2023-09-20 | Dyson Technology Ltd | Encoder |
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WO2001055668A1 (en) * | 2000-01-27 | 2001-08-02 | Thies Edward L | Absolute encoder |
JP2002162252A (ja) * | 2000-09-18 | 2002-06-07 | Mitsubishi Electric Corp | 回転位置検出装置 |
DE10255578A1 (de) * | 2002-11-28 | 2004-06-09 | Valeo Wischersysteme Gmbh | Vorrichtung und Verfahren zur kapazitiven Bestimmung des Drehwinkels und der Drehgeschwindigkeit einer Welle eines Motors |
DE102005021300A1 (de) * | 2005-05-09 | 2006-11-16 | Vs Sensorik Gmbh | Drehgeber |
WO2010084000A1 (de) | 2009-01-21 | 2010-07-29 | Gerd Reime | Verfahren zum induktiven erzeugen eines elektrischen messsignals sowie zugehörige sensorvorrichtung |
DE102011014936A1 (de) | 2010-04-08 | 2011-12-15 | Schaeffler Technologies Gmbh & Co. Kg | Steuereinrichtung und Verfahren zum Steuern |
DE102013208986A1 (de) | 2012-06-11 | 2013-12-12 | Schaeffler Technologies AG & Co. KG | Magnetgeberring einer Rotorlagesensorik eines elektrisch kommutierten Elektromotors |
Family Cites Families (1)
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DE102012216854A1 (de) * | 2012-09-20 | 2014-03-20 | Dr. Johannes Heidenhain Gmbh | Positionsmessgerät und Verfahren zu dessen Betrieb |
-
2015
- 2015-04-20 JP JP2016565335A patent/JP2017516990A/ja active Pending
- 2015-04-20 CN CN201580023371.4A patent/CN106256083B/zh not_active Expired - Fee Related
- 2015-04-20 WO PCT/DE2015/200266 patent/WO2015165456A1/de active Application Filing
- 2015-04-20 KR KR1020167030092A patent/KR20160146758A/ko not_active IP Right Cessation
- 2015-04-20 DE DE112015002041.1T patent/DE112015002041A5/de not_active Withdrawn
- 2015-04-20 US US15/303,875 patent/US10119838B2/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001055668A1 (en) * | 2000-01-27 | 2001-08-02 | Thies Edward L | Absolute encoder |
JP2002162252A (ja) * | 2000-09-18 | 2002-06-07 | Mitsubishi Electric Corp | 回転位置検出装置 |
DE10255578A1 (de) * | 2002-11-28 | 2004-06-09 | Valeo Wischersysteme Gmbh | Vorrichtung und Verfahren zur kapazitiven Bestimmung des Drehwinkels und der Drehgeschwindigkeit einer Welle eines Motors |
DE102005021300A1 (de) * | 2005-05-09 | 2006-11-16 | Vs Sensorik Gmbh | Drehgeber |
WO2010084000A1 (de) | 2009-01-21 | 2010-07-29 | Gerd Reime | Verfahren zum induktiven erzeugen eines elektrischen messsignals sowie zugehörige sensorvorrichtung |
DE102011014936A1 (de) | 2010-04-08 | 2011-12-15 | Schaeffler Technologies Gmbh & Co. Kg | Steuereinrichtung und Verfahren zum Steuern |
DE102013208986A1 (de) | 2012-06-11 | 2013-12-12 | Schaeffler Technologies AG & Co. KG | Magnetgeberring einer Rotorlagesensorik eines elektrisch kommutierten Elektromotors |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016140149A1 (ja) * | 2015-03-05 | 2016-09-09 | 日立オートモティブシステムズ株式会社 | 位置検出装置 |
JPWO2016140149A1 (ja) * | 2015-03-05 | 2017-06-22 | 日立オートモティブシステムズ株式会社 | 位置検出装置 |
CN107401975A (zh) * | 2016-05-18 | 2017-11-28 | 法国大陆汽车公司 | 用于对旋转的机械部件进行角度测量的线性感应式位置传感器 |
WO2018006901A1 (de) * | 2016-07-05 | 2018-01-11 | Schaeffler Technologies AG & Co. KG | Verfahren und vorrichtung zur ermittlung einer umdrehungszahl und einer winkelposition eines um eine drehachse verdrehbaren bauteils |
WO2019201375A1 (de) | 2018-04-20 | 2019-10-24 | Schaeffler Technologies AG & Co. KG | Verfahren zur bestimmung eines zustandes einer parksperre eines fahrzeuges |
DE102018109465A1 (de) | 2018-04-20 | 2019-10-24 | Schaeffler Technologies AG & Co. KG | Verfahren zur Bestimmung eines Zustandes einer Parksperre eines Fahrzeuges |
CN111788417A (zh) * | 2018-04-20 | 2020-10-16 | 舍弗勒技术股份两合公司 | 用于确定汽车驻车锁状态的方法 |
US11873870B2 (en) | 2019-09-27 | 2024-01-16 | Schaeffler Technologies AG & Co. KG | Method for controlling a friction clutch, and torque transmission device comprising same |
Also Published As
Publication number | Publication date |
---|---|
CN106256083A (zh) | 2016-12-21 |
JP2017516990A (ja) | 2017-06-22 |
US10119838B2 (en) | 2018-11-06 |
KR20160146758A (ko) | 2016-12-21 |
CN106256083B (zh) | 2020-01-03 |
US20170038226A1 (en) | 2017-02-09 |
DE112015002041A5 (de) | 2017-06-29 |
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