CN104205613B - Method and device for determining the position of an electric motor, in particular in a clutch actuation system of a motor vehicle - Google Patents

Method and device for determining the position of an electric motor, in particular in a clutch actuation system of a motor vehicle Download PDF

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Publication number
CN104205613B
CN104205613B CN201380019137.5A CN201380019137A CN104205613B CN 104205613 B CN104205613 B CN 104205613B CN 201380019137 A CN201380019137 A CN 201380019137A CN 104205613 B CN104205613 B CN 104205613B
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CN
China
Prior art keywords
rotor
motor
sensing device
extremely
stator
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.)
Expired - Fee Related
Application number
CN201380019137.5A
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Chinese (zh)
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CN104205613A (en
Inventor
马库斯·迪特里希
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
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Schaeffler Technologies AG and Co KG
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Publication of CN104205613A publication Critical patent/CN104205613A/en
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Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/06—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices
    • H02K29/08—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices using magnetic effect devices, e.g. Hall-plates, magneto-resistors
    • 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
    • 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
    • F16D2500/1023—Electric motor
    • F16D2500/1024—Electric motor combined with hydraulic actuation
    • 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
    • F16D2500/3026—Stroke
    • 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
    • F16D2500/50—Problem to be solved by the control system
    • F16D2500/501—Relating the actuator
    • F16D2500/5012—Accurate determination of the clutch positions, e.g. treating the signal from the position sensor, or by using two position sensors for determination
    • 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
    • F16D2500/50—Problem to be solved by the control system
    • F16D2500/501—Relating the actuator
    • F16D2500/5018—Calibration or recalibration of the actuator
    • 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
    • H02P2203/00—Indexing scheme relating to controlling arrangements characterised by the means for detecting the position of the rotor
    • H02P2203/03—Determination of the rotor position, e.g. initial rotor position, during standstill or low speed operation
    • 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
    • H02P2203/00—Indexing scheme relating to controlling arrangements characterised by the means for detecting the position of the rotor
    • H02P2203/05—Determination of the rotor position by using two different methods and/or motor models

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The invention relates to a method for determining and/or controlling the position of an electric motor, in particular in a clutch actuation system of a motor vehicle, wherein the position of the rotor of the electric motor (14) is determined by a sensor device arranged outside the rotational axis of the electric motor on the stator of the electric motor, wherein a position signal generated by the sensor device is evaluated by an evaluation unit. In a method for ensuring an extremely high position resolution of the rotor of an electric motor, the plausibility of the position signals output by the sensor device during the sinusoidal control of the electric motor is verified by means of at least one position signal detected during the unitary control of the electric motor.

Description

For determine motor it is position, especially in the clutch control system of motor vehicle The method and apparatus of the position of motor in system
Technical field
The present invention relates to it is a kind of be used for determine and/or control motor it is position, especially in the clutch of motor vehicle The position of the rotor of the method for the position of motor in steerable system, wherein motor outside the rotating shaft of motor by setting Sensing device on the stator of motor is drawn, wherein being commented by the position signalling that sensing device is drawn by assessment unit Estimate, and the present invention relates to a kind of apparatus for carrying out the process.
Background technology
In the motor vehicle in modern times, automatic clutch is especially used more and more in car, as it is in DE10 Described in 2011 014 936A1.The use of this clutch has the advantages of improving driving comfort and caused frequent Ground travels in the gear with big speed ratio.The clutch applied at this is used in the clutch system of hydraulic pressure, wherein electricity The actuator of hydraulic pressure is connected via hydraulic pipeline with clutch, and the actuator is driven by the motor of electricity commutation.
In order to improve driving comfort, rotor must be with rotor institute's phase of motor as the position measured by sensing device The position correction of prestige.Generally, rotor-position according to three magnetic field switchings for being offset from one another connection in Hall sensor form come Detection.The edge provided by magnetic field switching be used as position signalling and with the letter of three out of phase phase voltages of motor Number calibration.
High position resolution is especially needed in the motor that sensor is arranged on outside the rotating shaft of motor.It is electronic The rotor of machine has the extremely right of only limited number, from the pole centering can using the edge of the predetermined number of magnetic field switching with Determined in position.Following situations be present：In order to ensure the position of total system function, i.e. motor determine and control simultaneously and need Following resolution ratio, the quantity at the far super edge provided by magnetic field switching of the resolution ratio are wanted, such case is especially moved in height Occur in the motor of state operation.
The content of the invention
It is therefore an object of the present invention to a kind of method for being used to determining and/or controlling the position of motor is proposed, wherein Service meter and the high position resolution of rotor-position however can be realized in a manner of high dynamic.
According to the present invention, the purpose is realized by following manner：By means of the modular control period inspection in motor At least one position signalling surveyed, likelihood is verified to the position signalling exported during sinusoidal control motor by sensing device Property.This has the following advantages that：Because the position of fixation detected by sensing device in modular control period can will be in sine The position signalling of control period output resolves into any number of centre positions, and the centre position can be used in controlling motor. Therefore the rotor pole pair for being restricted quantity and the conflict it is expected between high resolution ratio for controlling motor can be overcome.
Advantageously, at least one centre position is detected, the centre position is located in modular control period due to described The pole-change of rotor and between the switching edge that occurs, the switching edge is used as position signalling.Thus resolution ratio is improved.
In an improved form, the rotor is sensed extremely with high-resolution by sensing device in sinusoidal control period Few one extremely right.Here, on extremely to record linear oscillator cycle, the cycle directly with modular control period institute The position of record is associated.Because sinusoidal control period detection simulation position signalling at two in modular control period Always strictly monotone between the position signalling (reversal point) of detection, so any number of centre positions can be detected.
In a design, the reversal point obtained by modular control of position signalling is located to be existed by sensing device To in the minimum value or maximum of the position signalling of motor sine control period detection.Therefore ensure that：The position signalling of simulation Always strictly monotone, therefore forbid ambiguity (Zweideutigkeit) when assessing rotor-position and will can always simulate Position signalling and the position of fixation of rotor be directly associated.
In a variations, motor is run and at low turn in the case of high-revolving by modular control Run in the case of speed by sine control.Here, with the case where rotating speed is slow in sinusoidal control period by means of linear The situation that sensor progress position is adjusted again just, is carried out soon using in modular control period by means of magnetic field switching The advantages of speed sensing.Especially in the case where rotating speed is low, to the information obtained during being run with high rotating speed by modular control Assessed to verify the likelihood of the position signalling of the simulation of linear transducer.
Advantageously, the switching threshold between modular control and sinusoidal control is determined according to the time delay of sensing device. Here, the time delay be by sensing device test position information until handle in assessment unit the positional information it Between time delay.The processing time of the dead time or assessment unit of the time delay and sensing device and/or output frequency Rate is related.
Time delay ensures：Always in result of the correct time point as the positional information obtained by sensing device To carry out the control of motor.The present invention another improved form be related to it is a kind of be used for determine and/or control motor position, The rotor of the equipment of the position of motor especially in the clutch operating system of motor vehicle, wherein motor, which has, to be fixed Predetermined number it is extremely right, it is described extremely to alternately in mutually opposite directions magnetization and with stator via air gap collective effect, Drawn wherein on stator by the sensing device being arranged on outside the rotating shaft of motor on stator, wherein sensing device has There are three magnetic field switchings for being used to determine the position of rotor.In the equipment for ensuring high position resolution, sensing is at least one Extremely to linear transducer be arranged on stator, the position signalling of the rotor is by assessment unit by means of in modular control In likelihood verified by the position signalling of three magnetic field switchings detections.This has the following advantages that：It reliably ensure that presence Total system function in the control of motor also has the position of the rotor of motor to determine.This is especially when needs are higher than by magnetic field It is applicable during the resolution ratio for the positional information that switch is provided by its edge.Therefore, motor can highly dynamically be run And however realize extremely high position resolution.
Advantageously, three magnetic field switchings orient so that 120 ° of spacing is electric on the stator, and linear transducer 30 ° of mode is offset relative to an electricity in magnetic field switching to be arranged on stator.It is true by the setting of linear transducer Protect：The switching edge of magnetic field switching is always located in the maximum or minimum of the position signalling of the simulation recorded by linear transducer In value.Pass through the ambiguity of the setting disabled position signal.
In a design, linear transducer and three magnetic field switchings are set relative to sensor ring, the sensing Device ring have quantity identical with rotor extremely pair and towards rotor orientation.By the design, sensing device can be simply It is arranged on outside the rotating shaft of motor, wherein motor is configured to outer rotor herein.
Set to simplify, linear transducer switchs to be formed by two each other electric linear magnetic fields for offseting 90 °.Because The linear magnetic field switch is extremely simple sensor, it is possible to reduces cost as much as possible.Nevertheless, the theme leads to Cross and switch reliably disambiguation, temperature drift and magnetic field dependence using linear magnetic field
Brief description of the drawings
The present invention allows substantial amounts of embodiment.Accompanying drawing according to being shown in drawing is elaborated in the embodiment One.
It shows：
Fig. 1 shows the simplification view of the clutch operating system for manipulating automatic friction clutch,
Fig. 2 shows the sensor ring with arranged sensor,
Fig. 3 shows change curve of the position signalling on an electric cycle.
Embodiment
Clutch operating system 1 for automatic clutch is simplifiedly shown in Fig. 1.Clutch operating system 1 exists Friction clutch 2 is associated with the PWTN of motor vehicle and including active cylinder 3, the active cylinder is via being also also referred to The hydraulic pipeline 4 of pressure pipeline is connected with slave cylinder 5.In slave cylinder 5, relay piston 6 can move back and forth, the driven work Plug manipulates friction clutch 2 in the case of bearing 8 is connected with via operating mechanism 7 and in centre.
Active cylinder 3 can be connected via connection opening with compensation container 9.Active piston 10 can move in active cylinder 3. Piston rod 11 starts from active piston 10, and the piston rod can translationally move together with active piston 10 along the longitudinal direction. The piston rod 11 of active cylinder 3 couples via leading screw 12 and electrical servo driver 13.Electrical servo driver 13 includes being configured to The motor 14 and assessment unit 15 of the DC current motor of commutation.The rotational motion of motor 14 is converted into piston by leading screw 12 The lengthwise movement of bar 11 or active cylinder piston 10.Friction clutch 2 passes through motor 14, leading screw 12, active cylinder 3 and slave cylinder 5 Automatically manipulate.
Sensing device 16 is integrated with electrical servo driver 13, as its figure 2 illustrates.Fig. 2 is shown in which to sense Device ring 17, the sensor ring have quantity identical with the rotor of motor 14 extremely pair and the sensor ring is not being entered Oriented on rotor shown in one step.Sensor ring 17 is for example distributed over 360 deg. and had including 11 magnetic poles N, S, the magnetic pole There are 22 pole transition pieces, the pole transition piece is used as opening for three magnetic field switchings for being configured to Hall switch 18,19,20 Off position, 66 switching edges are thus shown to assessment unit 15.Magnetic field switching 18,19,20 is set relative to sensor ring 17 Put on stator and distinguish 120 ° of electric deflection each other.Additionally, linear transducer 21 is with relative to 30 ° of the skew of magnetic field switching 20 Mode be fixed on stator.
Here, magnetic field switching 18,19,20 and the magnetic pole collective effect of sensor ring 17.In order to determine rotor or sensor Relative position between ring 17 and stator and the commutation for the winding according to measured relative position control motor 14 Magnetic field switching 18,19,20 is connected with the measurement signal input of assessment unit 15.
Motor 14 controls now according to rotating speed.For example positioned at 200 to 250 turns per minute of high-revolving situation Under, by means of controlling motor 14 by assessment unit 15 also referred to as the direct modular control of block commutation.Modular control System is interpreted as, and the motor 14 with three phases U, V, W is controlled into so that and it is currentless always to have phase U, V, a W, and Two other phase U, V, W are energized.
In the modular control period, detected by assessment unit 15 in terms of rotor is relative to the position of stator and pass through magnetic field Reversal point k caused by switch 18,19,201、k2、k3、k4、k5、k6.In the second step, motor 14 is with less than per minute 200 The rotating speed control turned.In the case of the rotating speed, the sinusoidal control of the phase of motor 14 is carried out.As figure 3 illustrates as, The output voltage A of sinusoidal is provided herein as position signalling around 360 ° of periods, linear transducer 21 in motor 14. This, only sensed by linear transducer 21 in a manner of high-resolution be arranged on it is unique extremely to S, N in sensor ring 17. The position data that modular control period obtains is evaluated the cycle ratio of unit 15 and the output signal A of linear transducer 21 herein Compared with six reversal point ks of the position data corresponding to three magnetic field switchings 18,19,201、k2、k3、k4、k5、k6.Here, line The output signal A of the sinusoidal of property sensor 21 is placed in six reversal point k of magnetic field switching 18,19,201、k2、k3、k4、k5、k6 On so that reversal point k2In the maximum of the output signal A of linear transducer 21 linear signal change curve and change To point k5In minimum value.By this calibration, the output signal A of linear transducer 21 is always strict single in the step that commutates Adjust, B shows by a dotted line for this.Due to the change of output signal A strictly monotones in the step that commutates, it is able to carry out pole It is to N, S position univocality associated with stator so that except due to a number of existing position description extremely to N, S it Outside, any number of other centre positions can be produced.This is favourable especially when position determines for example only to obtain 66 increments , but system for example needs 220 increments to control motor 14.Therefore from the output signal A of linear transducer 21 With the reversal point k of magnetic field switching 18,19,201、k2、k3、k4、k5、k6Comparison in can set and assess arbitrary interposition Put.
Advantageously, the output signal A of the simulation of linear transducer 21 believes via the signal with certain level, such as PWM Number export.Because assessment unit 15 be not locally located on linear transducer 21 directly, can be on output signal A Disturb, the interference is by the way that output signal A digitlizations (step between two voltages) are reduced.
In order to just ensure to be powered at correct time point when controlling motor 14, according to the delay of linear transducer 21 Time execution unit formula controls the switching threshold between sinusoidal control.It will regard as time delay with the detecting position of linear transducer 21 Confidence is ceased to the time delay between the transfer change place information of assessment unit 15, wherein especially considering the dead of linear transducer 21 There is processing time and/or the output frequency of assessment unit 15 time in area.Thereby, it is ensured that reliably improve the efficiency of motor 14 And the commutating period point of mistake is not selected.
In one the especially variations of cost-effective, instead of the linear transducer 21 of simulation, two simple structures are used Switched as the linear magnetic field of linear Hall device, the linear magnetic field switch is offset from one another 90 ° of ground and set.This is especially in pole To north and south poles between spacing it is longer when use, two of which linear Hall device always alternate activation.
According to the method proposed, the position that can carry out motor 14 determines and control, wherein off-axis, i.e. in electricity Sensing device is installed outside the rotating shaft of motivation 14.Here, all ensure at any time in the case of high position resolution be always System function.Motor 14 can highly dynamically be run herein, wherein always realizing the extremely high position resolution of rotor-position.
Reference numerals list
A. clutch operating system
B. friction clutch
C. active cylinder
D. hydraulic pipeline
E. slave cylinder
F. relay piston
G. operating mechanism
H. bearing
I. container is compensated
J. active piston
K. piston rod
L. leading screw
M. servo-driver
N. motor
O. assessment unit
P. sensing device
Q. sensor ring
R. magnetic field switching
S. magnetic field switching
T. magnetic field switching
U. linear transducer
N poles
S poles

Claims (20)

  1. A kind of 1. method for being used to determine the position of motor, wherein the position of the rotor of the motor (14) is by the electricity The sensing device (16) that is arranged on outside the rotating shaft of motivation (14) on the stator of the motor (14) is drawn, wherein by described The position signalling that sensing device (16) is drawn is assessed by assessment unit (15),
    Characterized in that, at least one position signalling by means of the modular control period detection in the motor (14) (k1, k2, k3, k4, k5, k6), in the sinusoidal position for controlling motor (14) period to be exported by the sensing device (16) Confidence number (A) verifies likelihood.
  2. 2. according to the method for claim 1, it is characterised in that methods described is used to determine the clutch control in motor vehicle The position of motor in system.
  3. 3. according to the method for claim 1, it is characterised in that detect at least one centre position, the interposition set In between the switching edge that the modular control period occurs due to the pole-change of the rotor, the switching edge is used As position signalling (k1, k2, k3, k4, k5, k6)。
  4. 4. according to the method for claim 2, it is characterised in that detect at least one centre position, the interposition set In between the switching edge that the modular control period occurs due to the pole-change of the rotor, the switching edge is used As position signalling (k1, k2, k3, k4, k5, k6)。
  5. 5. according to the method for claim 1, it is characterised in that pass through the sensing device in the sinusoidal control period (16) at least one extremely to (N, S) of the rotor is sensed with high-resolution.
  6. 6. according to the method for claim 2, it is characterised in that pass through the sensing device in the sinusoidal control period (16) at least one extremely to (N, S) of the rotor is sensed with high-resolution.
  7. 7. according to the method for claim 3, it is characterised in that pass through the sensing device in the sinusoidal control period (16) at least one extremely to (N, S) of the rotor is sensed with high-resolution.
  8. 8. according to the method for claim 4, it is characterised in that pass through the sensing device in the sinusoidal control period (16) at least one extremely to (N, S) of the rotor is sensed with high-resolution.
  9. 9. method according to any one of claim 1 to 8, it is characterised in that the position signalling passes through the list Reversal point (the k that first formula control obtains1, k2, k3, k4, k5, k6) positioned at described electronic in sine control by the sensing device (16) During machine (14) in the minimum value or maximum of the position signalling (A) of detection.
  10. 10. method according to any one of claim 1 to 8, it is characterised in that the motor (14) is high-revolving In the case of run and run in the case of the slow-speed of revolution by the sinusoidal control by the modular control.
  11. 11. according to the method for claim 10, it is characterised in that determined according to the time delay of the sensing device (16) Switching threshold between modular control and sinusoidal control.
  12. A kind of 12. equipment for being used to determine the position of motor, wherein the rotor of the motor (14) has fixed present count Amount extremely to (N, S), it is described extremely to alternately being magnetized in mutually opposite directions and with stator via air gap collective effect, Sensing device wherein on the stator by means of being arranged on outside the rotating shaft of the motor (14) on the stator (16) position signalling is drawn, wherein there are three to be used to determine that the magnetic field of the positions of the rotor is opened for the sensing device (16) Close (18,19,20),
    Characterized in that, sense at least one of the rotor is extremely arranged on the stator to the linear transducer (21) of (N, S) On, the position signalling (A) of the linear transducer by assessment unit (15) by means of in modular control as described in three Position signalling (the k of magnetic field switching (18,19,20) detection1, k2, k3, k4, k5, k6) verify likelihood.
  13. 13. equipment according to claim 12, it is characterised in that the equipment is used to determine that the clutch in motor vehicle is grasped The position of motor in vertical system.
  14. 14. equipment according to claim 12, it is characterised in that three magnetic field switchings (18,19,20) are with 120 ° Spacing orients electricly on the stator, and the linear transducer (21) is with relative to one (20) in the magnetic field switching 30 ° of mode is offset electricly to be arranged on the stator.
  15. 15. equipment according to claim 13, it is characterised in that three magnetic field switchings (18,19,20) are with 120 ° Spacing orients electricly on the stator, and the linear transducer (21) is with relative to one (20) in the magnetic field switching 30 ° of mode is offset electricly to be arranged on the stator.
  16. 16. equipment according to claim 12, it is characterised in that the linear transducer (21) and three magnetic fields are opened Close (18,19,20) to set relative to sensor ring (17), the sensor ring has the extremely right of quantity identical with the rotor (N, S) and towards the rotor orientation.
  17. 17. equipment according to claim 13, it is characterised in that the linear transducer (21) and three magnetic fields are opened Close (18,19,20) to set relative to sensor ring (17), the sensor ring has the extremely right of quantity identical with the rotor (N, S) and towards the rotor orientation.
  18. 18. equipment according to claim 14, it is characterised in that the linear transducer (21) and three magnetic fields are opened Close (18,19,20) to set relative to sensor ring (17), the sensor ring has the extremely right of quantity identical with the rotor (N, S) and towards the rotor orientation.
  19. 19. equipment according to claim 15, it is characterised in that the linear transducer (21) and three magnetic fields are opened Close (18,19,20) to set relative to sensor ring (17), the sensor ring has the extremely right of quantity identical with the rotor (N, S) and towards the rotor orientation.
  20. 20. the equipment according to any one of claim 12 to 19, it is characterised in that the linear transducer (21) passes through Two linear magnetic fields for offseting 90 ° each other electricly switch to be formed.
CN201380019137.5A 2012-04-25 2013-04-04 Method and device for determining the position of an electric motor, in particular in a clutch actuation system of a motor vehicle Expired - Fee Related CN104205613B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102012206756 2012-04-25
DE102012206756.6 2012-04-25
PCT/EP2013/057059 WO2013160075A2 (en) 2012-04-25 2013-04-04 Method and device for determining and/or actuating a position of an electric motor, in particular in a clutch‑activation system of a motor vehicle

Publications (2)

Publication Number Publication Date
CN104205613A CN104205613A (en) 2014-12-10
CN104205613B true CN104205613B (en) 2018-02-06

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Application Number Title Priority Date Filing Date
CN201380019137.5A Expired - Fee Related CN104205613B (en) 2012-04-25 2013-04-04 Method and device for determining the position of an electric motor, in particular in a clutch actuation system of a motor vehicle

Country Status (3)

Country Link
CN (1) CN104205613B (en)
DE (2) DE112013002221A5 (en)
WO (1) WO2013160075A2 (en)

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DE102014216279A1 (en) * 2014-08-15 2016-02-18 Schaeffler Technologies AG & Co. KG Method for protecting a clutch actuator of a clutch actuation system, preferably for a motor vehicle
DE102015216509A1 (en) * 2015-08-28 2017-03-02 Schaeffler Technologies AG & Co. KG Angle measuring device for a rotary driven linear actuator
DE102016207643A1 (en) 2016-05-03 2017-11-09 Schaeffler Technologies AG & Co. KG Method for determining a position of a rotor of an electrical machine
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