WO2010070014A1 - Détecteur de position angulaire - Google Patents

Détecteur de position angulaire Download PDF

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Publication number
WO2010070014A1
WO2010070014A1 PCT/EP2009/067346 EP2009067346W WO2010070014A1 WO 2010070014 A1 WO2010070014 A1 WO 2010070014A1 EP 2009067346 W EP2009067346 W EP 2009067346W WO 2010070014 A1 WO2010070014 A1 WO 2010070014A1
Authority
WO
WIPO (PCT)
Prior art keywords
shaft
angle sensor
drive gear
transmission element
measuring
Prior art date
Application number
PCT/EP2009/067346
Other languages
German (de)
English (en)
Inventor
Lukas Fiala
Alexander Trinn
Knut Moldenhauer
Martin Deitmerg
Original Assignee
Leopold Kostal Gmbh & 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 Leopold Kostal Gmbh & Co. Kg filed Critical Leopold Kostal Gmbh & Co. Kg
Publication of WO2010070014A1 publication Critical patent/WO2010070014A1/fr

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
    • G01D5/02—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 mechanical means
    • G01D5/04—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 mechanical means using levers; using cams; using gearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D15/00—Steering not otherwise provided for
    • B62D15/02—Steering position indicators ; Steering position determination; Steering aids
    • B62D15/021—Determination of steering angle
    • B62D15/0215—Determination of steering angle by measuring on the steering column

Definitions

  • the invention relates to an angle sensor for detecting the rotational position of a rotatable shaft with a torque transmitting connected to the shaft drive gear and at least one driven by this measuring gear, wherein from the angular position of the / the measuring gear / wheels, the angular position of the shaft can be determined.
  • an angle sensor according to the preamble of claim 1 has become known.
  • the various sensor configurations shown there for detecting the rotational position of a shaft have in common that one or more measuring gears are driven by a drive gear connected in a torque-transmitting manner to the shaft.
  • the measuring gears are provided with rotary position sensors, through which their respective angular position can be detected, examples of such rotary position sensors Hall sensors and potentiometers are called.
  • the measuring gears are coupled via differently designed, resilient bearing elements without play on the rigidly and fixedly connected to the shaft drive gear. By this type of coupling, it is possible to compensate for static and / or dynamic deviations of the axis of rotation of the shaft of the ideal position of this axis of rotation.
  • the axes of rotation of the measuring gears deviate statically and / or dynamically from their ideal position, which can lead to considerable measurement errors, for example when a permanent magnet received in a measuring gear moves in relation to this one assigned Hall sensor instead of the intended axis of rotation about a different axis rotates, or instead of the sole provided rotational movement about the intended axis of rotation performs an additional relative movement relative to this.
  • the angle sensor according to the present invention has over this prior art the advantage that the axes of rotation of the measuring gears can be fixed, so that the aforementioned disadvantages are avoided.
  • the drive gear is connected by means of a transmission element with the shaft, which transmission element is used to compensate for static and / or dynamic deviations of the axis of rotation of the shaft of the axis of rotation of the drive gear.
  • This inventive design of the angle sensor it is possible to fix the axis of rotation of the drive gear, for example, by storage in the housing of the angle sensor, so that the axes of rotation of the measuring gears can be set in relation to this. Static and / or dynamic deviations of the axis of rotation of the rotatable shaft both in terms of their radial position with respect to the axis of rotation of the drive gear and with respect to a possible deviation from the parallelism of their orientation are compensated by the transmission element.
  • the transmission element is formed as a provided with four bearing mounts annular, in particular annular body, each two of the bearing receptacles with respect to the ring circumference arranged opposite each other and with two each of the one hand the shaft and the other hand, the drive gear associated counter bearings are engaged.
  • Fig. 1 shows an embodiment of the angle sensor according to the invention as a magnetic steering angle sensor for a motor vehicle
  • Fig. 2 is a schematic representation for explaining the operation of the transmission element in cooperation with the associated abutments
  • Fig. 3 shows the steering angle sensor of FIG. 1 as a subassembly of a
  • an inventive angle sensor is shown in an embodiment as a magnetic steering angle sensor for a motor vehicle.
  • the rotatable shaft whose rotational position is detected by the angle sensor is in this case the steering spindle, not shown in the drawing of the motor vehicle.
  • a cup-shaped support member 5 drive gear 1 is rotatably mounted in a housing lower part 9 of the angle sensor.
  • the cup-shaped support member 5 is held with his below the gear further extending, short shaft in a precisely fitting, also cup-shaped receptacle 10 of the housing part 9.
  • In meshing engagement with this drive gear 1 are two, also in the lower housing part 9 on the axis of rotation of the drive gear 1 parallel aligned axes 1 1, 12 rotatably mounted measuring gears 2, 3.
  • the measuring gears 2, 3 are smaller than the drive gear 1 and have different numbers of teeth on, so from the respective
  • Angular positions of the measuring gears 2, 3 in a manner known for example from German Patent Application DE 10 2006 006 359 A1 from a beating angle the angular position of the drive gear 1 and thus the shaft is uniquely determined over several revolutions.
  • the detection of the angular position of the measuring gears 2, 3 takes place in this case by means of arranged on a printed circuit board 13 magnetic field sensors, each detect the alignment of the arranged in the measuring gears 2, 3 permanent magnets 7, 8 caused magnetic fields.
  • the magnetic field sensors which are, for example, Hall sensors or magnetoresistive sensors, are located on the hidden side in the drawing of the printed circuit board 13, on which moreover electronic components of a measurement and evaluation electronics of the angle sensor are accommodated.
  • contact surfaces 14 for contacting printed circuit board edge connectors are present at the edge of the circuit board.
  • a transmission element 4 here is a resiliently trained, preferably made of a suitable plastic annular body used, which with four bearing seats 4.1, 4.2, 4.3 , 4.4 is provided.
  • two of the bearing receptacles form a pair and are arranged opposite to each other with respect to the circumference of the transmission element 4.
  • the openings of the bearing seats 4.1, 4.3 of the first pair point down and are engaged with thrust bearings 5.1, 5.3 of the drive gear 1 in engagement.
  • the openings of the bearing receivers 4.2, 4.4 of the second pair point upwards and are engaged with counter bearings 6.2, 6.4 of a rigidly connected to the rotatable shaft bearing ring 6 is engaged.
  • the abutment 5.1, 5.3 of the drive gear 1 are integrally formed in the present embodiment on the Victoria 5, the shaft-side abutment 6.2, 6.4 of the bearing ring 6 are integrally formed therewith.
  • the axes of rotation of the shaft and drive gear 1 should be identical, i. lying on a straight line in the room.
  • the annular transmission element 4 is provided with four bearing receptacles 4.1, 4.2, 4.3, 4.4, of which two each opposite one another to form a couple.
  • the upward opening of the bearing holder 4.4 in section has the shape of an isosceles trapezium, wherein the downwardly converging legs of the trapezium forming the abutment surfaces for the abutment 6.4.
  • the abutment 6.4 has a semi-circular contour in section, so that there are defined contact lines between bearing seat 4.4 and abutment 6.4.
  • This type of storage allows several degrees of freedom of the axes of rotation of the shaft W and the drive gear A to each other, which are indicated in Fig. 2a by arrows.
  • the two axes are displaceable on the one hand in each case in a radial direction, and on the other hand tiltable about an axis 15, 16 parallel to its possible direction of displacement.
  • the axis 15, 16 for the tilting runs in each case through the circle centers of the semicircular contour of the aligned in this direction abutment 5.1, 5.3 and 6.2, 6.4.
  • the two axes of rotation of the shaft W and the drive gear A are interconnected by a kind of gimbal bearing, which still has additional degrees of freedom of movement.
  • the two tilt axes 15, 16 and thus also the two directions for the radial displacement are arranged perpendicular to each other in this case, which is advantageous, but not mandatory.
  • FIG. 3 shows a central region of a steering column module for a motor vehicle.
  • inventively designed steering angle sensor forms in this context, a subassembly of this steering column module.
  • Another subassembly forms a so-called coil spring cassette, in which a ribbon cable for transmitting energy and / or signals between the steering wheel and the steering column in turns within an annular cavity of its longitudinal axis concentrically surrounding housing is added.
  • a device e.g. an airbag system, a steering wheel heater, a switching device, etc. are supplied with or with the voltage and signals necessary for its function.
  • the coil spring cassette consists of an upper rotor part 19 and a lower rotor part 20 which are rotatably received in a housing consisting of a stator upper part 21 and a stator lower part 22.
  • a stator upper part 21 and a stator lower part 22 In the existing between the stator 21, 22 and rotor 19, 20 annular cavity, the flat cable, not shown here is wound in several turns.
  • the stator lower part 22 of the coil spring cassette simultaneously forms an upper housing part of the steering angle sensor with the components already described above, so that a compact assembly results.
  • the rigid connection of the steering angle sensor driving bearing ring 6 with the steering shaft is carried out starting from the with the steering shaft connected steering wheel via the rotor upper part 19 which engages with two pins 24 in associated, matching openings in the steering wheel base.
  • the rotor upper part 19 is in turn rigidly connected via clip connections with the rotor base 20 and this in turn in the same manner with the bearing ring 6.
  • the housing parts are fixed to each other via clips and additional screw connections.
  • the entire steering column module includes in addition to the components coil spring cassette and steering angle sensor even more components, in particular steering column switch, not shown here, which are laterally attached to the assembly shown here.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

L'invention concerne un détecteur de position angulaire utilisé pour détecter la position de rotation d'un arbre rotatif, qui présente un pignon d'entrée relié à l'arbre de manière à transmettre le couple et au moins un pignon de mesure entraîné par le pignon d'entrée. La position angulaire du(des) pignons de mesure permet de dériver la position angulaire de l'arbre. Ce détecteur de position angulaire se caractérise en ce que le pignon d'entrée est relié à l'arbre au moyen d'un élément de transmission qui sert à compenser les écarts statiques et/ou dynamiques de l'axe de rotation de l'arbre par rapport à l'axe de rotation du pignon d'entrée.
PCT/EP2009/067346 2008-12-19 2009-12-16 Détecteur de position angulaire WO2010070014A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810063951 DE102008063951A1 (de) 2008-12-19 2008-12-19 Winkelsensor
DE102008063951.6 2008-12-19

Publications (1)

Publication Number Publication Date
WO2010070014A1 true WO2010070014A1 (fr) 2010-06-24

Family

ID=42111675

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/067346 WO2010070014A1 (fr) 2008-12-19 2009-12-16 Détecteur de position angulaire

Country Status (2)

Country Link
DE (1) DE102008063951A1 (fr)
WO (1) WO2010070014A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103072622A (zh) * 2013-02-27 2013-05-01 湖南时代卓越汽车电子技术有限公司 方向盘转向角度传感器装置
WO2016041975A1 (fr) * 2014-09-17 2016-03-24 Continental Teves Ag & Co. Ohg Capteur d'angle de braquage doté d'un entraînement sans jeu
CN106168460A (zh) * 2015-05-22 2016-11-30 罗伯特·博世有限公司 用于探测旋转构件的转角的角度传感器
US10494608B2 (en) 2015-04-24 2019-12-03 University Of Copenhagen Isolation of bona fide pancreatic progenitor cells

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010017850B4 (de) * 2010-04-22 2017-09-14 Leopold Kostal Gmbh & Co. Kg Vorrichtung zur Anordnung an der Lenksäule eines Kraftfahrzeugs
DE102010033769A1 (de) * 2010-08-09 2012-02-09 Valeo Schalter Und Sensoren Gmbh Vorrichtung mit einem Drehmomentsensor und einem Drehwinkelsensor
DE102012024383A1 (de) * 2012-12-13 2014-06-18 Valeo Schalter Und Sensoren Gmbh Vorrichtung mit einer Drehmomentsensoreinrichtung und einer Lenkwinkelsensoreinrichtung für ein Kraftfahrzeug, Kraftfahrzeug und Verfahren zum Herstellen einer Vorrichtung
JP7129470B2 (ja) * 2018-03-19 2022-09-01 古河電気工業株式会社 回転コネクタ装置及び回転コネクタ装置の組付構造
DE102020100319A1 (de) * 2020-01-09 2021-07-15 HELLA GmbH & Co. KGaA Drehwinkelsensor zur Bestimmung eines Drehwinkels und/oder eines Drehmoments

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1132716A1 (fr) * 1999-12-22 2001-09-12 ruf electronics gmbh Capteur de position
EP1477390A2 (fr) * 2003-05-13 2004-11-17 Furukawa Electric Co., Ltd. Capteur de rotation et accouplement pour un capteur de rotation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1945264A1 (de) * 1969-09-06 1971-03-11 Bhs Bayerische Berg Elastische,drehmomentuebertragende Abstuetzung eines Zahnkranzes
JP3587674B2 (ja) * 1998-01-07 2004-11-10 アルプス電気株式会社 回転角度センサ、この回転角度センサを用いたトルクセンサ、このトルクセンサを用いた電動パワーステアリング装置
DE102006006359A1 (de) 2006-02-11 2007-08-16 Leopold Kostal Gmbh & Co. Kg Drehwinkelsensor sowie Verfahren zum Bestimmen der absoluten Winkelstellung eines über mehrere Runden drehbaren Körpers

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1132716A1 (fr) * 1999-12-22 2001-09-12 ruf electronics gmbh Capteur de position
EP1477390A2 (fr) * 2003-05-13 2004-11-17 Furukawa Electric Co., Ltd. Capteur de rotation et accouplement pour un capteur de rotation

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103072622A (zh) * 2013-02-27 2013-05-01 湖南时代卓越汽车电子技术有限公司 方向盘转向角度传感器装置
WO2016041975A1 (fr) * 2014-09-17 2016-03-24 Continental Teves Ag & Co. Ohg Capteur d'angle de braquage doté d'un entraînement sans jeu
CN107074278A (zh) * 2014-09-17 2017-08-18 大陆-特韦斯股份有限公司 具有无间隙的驱动装置的sas
CN107074278B (zh) * 2014-09-17 2020-01-31 大陆-特韦斯股份有限公司 具有无间隙的驱动装置的sas
US10494608B2 (en) 2015-04-24 2019-12-03 University Of Copenhagen Isolation of bona fide pancreatic progenitor cells
CN106168460A (zh) * 2015-05-22 2016-11-30 罗伯特·博世有限公司 用于探测旋转构件的转角的角度传感器

Also Published As

Publication number Publication date
DE102008063951A1 (de) 2010-06-24

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