DE102018106006A1 - Steering angle sensor with clearance compensation and reduced clearance - Google Patents

Abstract

The invention relates to a steering angle sensor (50) for a vehicle having a rotor (52) mountable in the vehicle such that it is rotated by rotation of a steering wheel of the vehicle via a steering shaft rotor (84) connected therewith Rotor (52) has a first and a second single gear (54, 56) which are rotatably mounted about a common axis of rotation, wherein the second single gear (56) held concentric with the first single gear (54) and relative to the first single gear (54 ), wherein the rotor (52) comprises a spring force element (58) biasing the first and second single gears (54, 56) circumferentially against each other, the steering angle sensor (50) comprising a housing member (68) Single gear (54) has a shaft (62) with which the first single gear (54) is rotatably mounted on the housing member (68) and wherein the second single gear (56) rotatably mounted on the shaft (62) g is maintained. The invention also relates to a steering device (80) having a steering wheel, a steering shaft (82) rotationally fixed to the steering wheel, a steering shaft rotor (84) mounted on the steering shaft (82), and an above steering angle sensor (50) Steering shaft rotor (84) with the rotor (52) of the steering angle sensor (50) meshes. The invention further relates to a vehicle with a steering device (80) above.

Description

The present invention relates to a steering angle sensor for a vehicle having a rotor mountable in the vehicle so as to be rotated by rotation of a steering wheel of the vehicle via a steering shaft rotor connected thereto, the rotor having first and second single gears which are rotatably mounted about a common axis of rotation, wherein the second single gear is held concentrically to the first single gear and rotatable relative to the first single gear, the rotor having a spring force element which biases the first and the second single gear in the circumferential direction against each other, and wherein the steering angle sensor has a housing element,

Also, the present invention relates to a steering apparatus having a steering wheel, a steering shaft rotatably connected to the steering wheel, a mounted on the steering shaft steering shaft rotor, and a steering angle sensor above, wherein the steering shaft rotor meshes with the rotor of the steering angle sensor.

Furthermore, the present invention relates to a vehicle having a steering device as above.

Such a steering angle sensor is typically used in the steering apparatus to determine an absolute angular position of the steering wheel. It is in principle irrelevant whether the steering shaft is mechanically coupled to the corresponding wheels of the vehicle, or whether a rotation of the steering shaft with the steering wheel is electronically detected and causes a corresponding steering movement of the wheels of the vehicle. In principle, the same statements apply to vehicles that have, for example, a chain drive with a corresponding steering with a steering wheel or another type of steering.

In this case, the steering device may be implemented with a multi-axis detector which comprises the above steering angle sensor. Furthermore, the steering angle sensor may have an active operating mode and a standby operating mode. Also, the steering angle sensor may preferably detect not only a speed of rotation of the steering wheel, but additionally a direction of rotation of the steering wheel.

As in the 1 and 2 is shown comprises such a steering angle sensor 20 a rotor 10 with a first and a second single gear 12 . 14 that are against each other at an angle X are rotatable. Each of the single gears 12 . 14 has on its peripheral surface a plurality of teeth 16 on. The number of teeth 16 the two single gears 12 . 14 is chosen the same. The rotation of the single gears 12 . 14 takes place against the force of a spring force element 18 , which is the two single gears 12 . 14 coupled together and the first and the second single gear 12 . 14 biases against each other in the circumferential direction. This is the rotor 10 clearance engaged with a meshing element, such as a steering shaft rotor, not shown. The first single gear 12 is here designed as magnetic gear.

The 3 and 4 show a structure of the steering angle sensor 20 in total with the in the 1 and 2 represented rotor 10 , The steering angle sensor 20 includes a housing 22 . 26 with a housing element 26 and a housing cover 22 in which the rotor 10 is held rotatably. The housing cover 22 is designed as a printed circuit board, on which a Hall sensor 24 is mounted.

The first and the second single gear 12 . 14 here form the rotor 10 by the second single gear 14 concentric with the first single gear 12 held on a common axis of rotation. The spring force element 18 is arranged in between. For this purpose, the first single gear 12 a sleeve area 28 on, on the second single gear 14 is deferred. The first and the second single gear 12 . 14 are rotatably mounted to each other about the common axis of rotation.

The second single gear 14 here comprises an annular guide area 30 in an annular receptacle 32 of the housing element 26 is received rotatably. In addition, the first single gear 12 a recess 34 on, in which the Hall sensor 24 is included.

The steering angle sensor thus constructed 20 is designed for mounting in a vehicle, not shown here, so that it is rotated by rotation of a steering wheel of the vehicle in rotation. This is the first single gear 12 relative to the Hall sensor 24 turned. The resulting change in the magnetic field is from the Hall sensor 24 detected and evaluated to determine the rotation of the steering wheel.

Such a steering angle sensor is for example from the US 8,164,327 B2 known. In detail, a steering angle sensor arrangement for determining the absolute angular position of a steering wheel of a motor vehicle is known therefrom. The steering angle sensor assembly includes a multi-axis detector having an active mode of operation and a standby mode of operation adapted to measure the speed and direction of rotation of the steering wheel. The steering angle sensor arrangement further comprises at least one second detector which is arranged around a Form a quadrature encoder to detect movement and direction of the steering wheel when the multi-axis detector is in the standby or shutdown mode of operation.

In addition is from the DE 10 2004 021 405 A1 a steering column module with a stationary housing, a rotatably mounted in the housing and rotatably connected to a steering shaft sleeve known. The sleeve is provided with a circumferential toothing, with which a gear meshes, wherein the gear is formed by at least two superimposed gear elements, which are braced against each other or twisted, and mesh the gear elements with the toothing.

Moreover, from the DE 10 2008 049 680 A1 a two-piece gear with a first ring collar, which is connected to a hub, and a second ring collar known. At least one spring element ensures that the second ring collar is biased circumferentially against the first ring ring so as to provide a backlash compensation when meshing the two-piece gear with another gear. The spring comprises a ring segment from which protrude two end portions which engage in a groove in the hub and a groove in the second ring gear. There are two such spring elements used, which are offset by 180 ° and arranged in an annular groove in the second n ring gear.

Next is from the DE10 2011 122 341 A1 a gear for a device for detecting a position angle of a rotatable member of a vehicle known. The gear has a first gear half and a second gear half, which is coupled to the first gear half, wherein the gear halves are movable in the circumferential direction about a longitudinal axis of the gear relative to each other. The relative movement is limited in the circumferential direction by at least one deformable element, wherein the deformable element is a disposed between the gear halves component which is formed at least on the outside of a metal-free material.

Based on the above-mentioned prior art, the object of the invention is thus to specify a steering angle sensor, a steering device and a vehicle of the abovementioned type, which enable steering angle detection with high accuracy and have a compact construction.

The object is achieved by the features of the independent claims. Advantageous embodiments of the invention are specified in the subclaims.

According to the invention, therefore, a steering angle sensor for a vehicle is provided with a rotor which is mountable in the vehicle such that it is set in rotation by a rotation of a steering wheel of the vehicle via a steering shaft rotor connected thereto, wherein the rotor has a first and a second single gear which are rotatably supported about a common axis of rotation, wherein the second single gear is held concentrically to the first single gear and rotatable relative to the first single gear, the rotor having a spring force element which biases the first and the second single gear in the circumferential direction against each other, wherein the Steering angle sensor comprises a housing element, and wherein the first single gear has a shaft with which the first single gear is rotatably mounted on the housing member and the second single gear is rotatably supported on the shaft.

According to the invention, a steering device with a steering wheel, a steering shaft which is rotationally fixed to the steering wheel, a mounted on the steering shaft steering shaft rotor, and a steering angle sensor indicated above, wherein the steering shaft rotor meshes with the rotor of the steering angle sensor.

Further, according to the invention, a vehicle is specified with a steering device above.

The basic idea of the present invention is thus to simplify the construction of the rotor so that the rotor as a whole can be provided and rotatably mounted as a one-piece element on the housing element. This allows an efficient mounting of the steering angle sensor, since the storage of the second single gear is performed on the first single gear. Also, the rotor can be kept overall reliable and with little play, since only a game between the first single gear and the housing element can occur. A clearance between the first single gear and the second single gear in the present case does not affect the support of the rotor. In this case, an axial clearance is reduced on the one hand, since only the first single gear can move individually in the axial direction. On the other hand, a game in the radial direction is reduced. A play of the second single gear results only relative to the first single gear, and does not add up - as in a common mounting of the first and second single gear to a total game of the rotor.

The steering angle sensor is typically used in a steering apparatus in a vehicle. The steering angle sensor is rotatably coupled via a steering shaft with a steering wheel, wherein the steering shaft and steering wheel are rotationally fixed to each other, so that a steering movement of the steering wheel on the steering shaft and thus transferred to the steering shaft rotor. The steering shaft rotor then drives the rotor of the steering angle sensor. This movement of the rotor is detected and evaluated by the steering angle sensor. It can be adjusted by a configuration of the steering shaft rotor and the rotor, a desired ratio between a revolution of the steering shaft and the rotor. As a result, for example, an angular resolution of the steering angle sensor can be set.

The first and the second single gear are mutually rotatable by an angle, have the same outer diameter and each have the same number of teeth on its peripheral surface. The rotation of the individual gears against each other takes place against the force of the spring force element, which couples the two individual gears together and biases the first and the second single gear in the circumferential direction against each other. As a result, the rotor is free of play in engagement with a meshing element, for example, mounted on the steering shaft steering shaft rotor.

The steering angle sensor can detect the rotation of the steering shaft in fundamentally different ways. The detection of the rotation of the rotor is effected by a corresponding sensor element. The steering angle sensor can in principle operate without contact, resulting in low friction and low wear. Depending on the design of the steering angle sensor, the steering angle can be determined with high precision.

In an advantageous embodiment of the invention, the steering angle sensor is a magnetic steering angle sensor. There is a magnetic detection of the rotation of the rotor by a corresponding magnetic sensor element and at least one magnetic element as a signal generator. An evaluation unit carries out a detection of the rotation. The magnetic steering angle sensor works without contact and therefore with low friction and low wear. Depending on the configuration of the magnetic steering angle sensor, the steering angle can be determined with high precision. The magnetic element is preferably held on the first single gear.

In an advantageous embodiment of the invention, the evaluation on a Hall sensor. The Hall sensor can reliably detect a change in the magnetic field in its environment, as it is caused by a rotation of the at least one magnetic element. In this case, an angular resolution of the steering angle sensor can be influenced by the number of magnetic elements used. The at least one magnetic element is preferably arranged in spatial proximity to the Hall sensor. Particularly preferably, the first single gear is designed as a magnetic single gear with at least one corresponding magnetic element, or the at least magnetic element is attached to the first single gear.

In an advantageous embodiment of the invention, the second single gear is disposed in a region between the first single gear and the housing member. Accordingly, the second single gear is mounted on a side opposite the transmitter. The first single gear can be arranged, for example, with the magnetic element in the vicinity of the transmitter to allow undisturbed detection of the rotation of the rotor by the transmitter.

In an advantageous embodiment of the invention, the steering angle sensor has a printed circuit board with an evaluation for determining a rotation of the rotor, the circuit board forms a housing cover or is designed as part of a housing cover, and the rotor is held in a housing formed by the housing member and the housing cover , The housing element is closed by the housing cover with the circuit board, wherein the circuit board contributes to the closure of the housing. This allows a compact design of the steering angle sensor, since in the housing does not need to be additionally included a circuit board. The transmitter can in principle be mounted on the inside or outside of the circuit board. When mounted on the inside, the transmitter is specially protected. The transmitter preferably comprises a Hall sensor or is designed as a Hall sensor.

In an advantageous embodiment of the invention, the shaft extends between the circuit board and the housing element. The first single gear is thus held between the circuit board and the housing element. As a result, the rotor can be kept very reliable and with little play. It is reduced on the one hand, an axial clearance, since only the first single gear can move individually in the axial direction between the housing member and the circuit board. On the other hand, a radial clearance is reduced because the first single gear learns only by its own storage game.

In an advantageous embodiment of the invention, the first single gear at its the printed circuit board facing the axial end on a centrally disposed bore, and the transmitter is disposed within the bore. As a result, on the one hand, the evaluation electronics can be positioned very close to the rotor in order to detect its rotation. On the other hand, there is a particularly compact design of the steering angle sensor, since no or only little additional space for the transmitter must be provided.

In an advantageous embodiment of the invention, the housing element has a bearing element on which the first single gear is rotatably mounted. The bearing element can be provided in various ways. It preferably forms an axis of rotation for the rotatable attachment of the first single gear.

In an advantageous embodiment of the invention, the bearing element is designed as a bearing pin, the first single gear has a bearing pin corresponding to the inner bore, and the first single gear is rotatably supported with its inner bore on the bearing pin. The bearing pin thus forms an axis of rotation of the single gear as well as the rotor as a whole. The bearing pin can be designed as a cylindrical bearing element, or have a plurality of arms which extend from a central region to the outside, so that ends of the arms span a cylinder.

Alternatively, the bearing element can be designed such that it engages around a sleeve-shaped or cylindrical region of the first single gearwheel from the outside. Accordingly, the bearing element may be performed, for example, after he type of sleeve.

In an advantageous embodiment of the invention, the first and / or the second single gear on a snap mechanism, with which the first and the second single gear can be mounted together. By the snap mechanism attachment of the second single gear on the first single gear is made possible in a simple manner. Thus, the rotor as a whole can be easily formed. The snap mechanism preferably includes a plurality of struts extending along a sleeve portion of the first single gear. When the second single gear is pushed onto the sleeve portion, the struts can engage behind the second single gear, so that it is held firmly on the sleeve portion of the first single gear. The snap mechanism is preferably formed on the first single gear.

In an advantageous embodiment of the invention, the spring force element is designed as a ring spring and held on the first and / or the second single gear. The annular spring can be easily attached to the first or second single gear and rotationally coupled therewith. The annular spring can well absorb a force in the circumferential direction and transmitted between the two individual gears.

In an advantageous embodiment of the invention, the second single gear on a central through hole, and the first single gear has a sleeve portion on which the second single gear is mounted with its central passage opening.

In an advantageous embodiment of the invention, the steering device has a plurality of steering angle sensors, which are rotatably coupled to the steering shaft. Preferably, the steering device has two steering angle sensors. A steering device formed in this way makes it possible to form a steering angle sensor arrangement, for example to form a quadrature encoder. The quadrature encoder can reliably detect the movement and direction of rotation of the steering wheel when the steering angle sensor assembly is in the standby or shutdown mode of operation.

The invention will be explained in more detail with reference to the accompanying drawings with reference to preferred embodiments. The illustrated features may represent an aspect of the invention both individually and in combination. Features of various embodiments are transmittable from one embodiment to another.

• 1 eine Darstellung eines Rotors aus dem Stand der Technik mit zwei Einzelzahnrädern, die gegeneinander in Umfangsrichtung drehbar gehalten sind, mit einem Spiel, in einer seitlichen Ansicht bzw. Draufsicht,
• 2 eine Darstellung des Rotors aus 1 mit den zwei Einzelzahnrädern und einem Federkraftelement, mit dem die beiden Einzelzahnräder gegeneinander vorgespannt sind, in einer seitlichen Schnittansicht bzw. Draufsicht,
• 3 eine Darstellung eines Lenkwinkelsensors aus dem Stand der Technik mit dem Rotor aus den 1 und 2, einem Hall-Sensor und einem Gehäuse, wobei der Rotor in dem Gehäuse angeordnet ist, in einer Explosionsansicht,
• 4 eine Darstellung eines Lenkwinkelsensors aus 3 im montierten Zustand in einer seitlichen Schnittansicht,
• 5 eine Darstellung eines Lenkwinkelsensors gemäß einer ersten, bevorzugten Ausführungsform der Erfindung mit einem Rotor mit zwei Einzelzahnrädern, die gegeneinander in Umfangsrichtung drehbar gehalten sind, einem Federkraftelement, mit dem die beiden Einzelzahnräder gegeneinander vorgespannt sind, einem Hall-Sensor und einem Gehäuse, wobei der Rotor in dem Gehäuse angeordnet ist, in einer Explosionsansicht,
• 6 eine Darstellung des Lenkwinkelsensors aus 5 im montierten Zustand in einer seitlichen Schnittansicht,
• 7 eine schematische Darstellung einer Lenkvorrichtung gemäß der ersten Ausführungsform mit einer Lenkwelle, einem daran angebrachten Lenkwellenrotor und zwei Lenkwinkelsensoren aus 5 deren Rotoren mit dem Lenkwellenrotor kämmen, und
• 8 eine Detailansicht der Lenkvorrichtung aus 7, wobei der Lenkwellenrotor kämmend mit einem der Rotoren der beiden Lenkwinkelsensoren dargestellt ist.

It shows

• 1 2 shows a representation of a rotor from the prior art with two individual gears, which are held rotatably relative to one another in the circumferential direction, with a play, in a lateral view or plan view,
• 2 a representation of the rotor 1 with the two individual gears and a spring force element, with which the two individual gears are biased against each other, in a lateral sectional view or plan view,
• 3 a representation of a steering angle sensor of the prior art with the rotor of the 1 and 2 , a Hall sensor and a housing, wherein the rotor is arranged in the housing, in an exploded view,
• 4 a representation of a steering angle sensor 3 in the mounted state in a lateral sectional view,
• 5 a representation of a steering angle sensor according to a first preferred embodiment of the invention with a rotor with two single gears, which are rotatably supported against each other in the circumferential direction, a spring force element, with which the two individual gears are biased against each other, a Hall sensor and a housing, wherein the rotor is arranged in the housing, in an exploded view,
• 6 a representation of the steering angle sensor 5 in the mounted state in a lateral sectional view,
• 7 a schematic representation of a steering apparatus according to the first embodiment with a steering shaft, an attached steering shaft rotor and two steering angle sensors 5 whose rotors mesh with the steering shaft rotor, and
• 8th a detailed view of the steering device 7 wherein the steering shaft rotor is shown in mesh with one of the rotors of the two steering angle sensors.

The 5 and 6 show a steering angle sensor 50 according to a first, preferred embodiment of the invention.

The steering angle sensor 50 includes a rotor 52 with a first and a second single gear 54 . 56 , which are rotatably mounted about a common axis of rotation. The first single gear 54 is concentric with the second single gear 56 arranged. The first and the second single gear 54 . 56 are mutually rotatable by a predetermined angle and have the same outer diameter. The rotor 52 further comprises a spring force element 58 with which the two single gears 54 . 56 coupled together. The spring force element 58 is here as a ring spring 58 executed in an annular recess of the second single gear 56 is positioned. A rotation of the single gears 54 . 56 takes place in accordance with a force of the spring force element 58 , which is the two single gears 54 . 56 biases against each other in the circumferential direction.

Each of the single gears 54 . 56 has in each case an equal number of teeth 60 on. The first single gear 54 has a shaft 62 on, and the second single gear 56 has a central passage opening 64 on. The second single gear 56 is with its centric passage opening 64 on the shaft 62 of the first single gear 54 assembled. For the axial fixation of the second single gear 56 has the first single gear 54 a plurality of struts 66 on, extending along the sleeve area 62 extend and the second single gear 56 on the sleeve area 62 engage behind in the axial direction, making it tight on the sleeve area 62 of the first single gear 54 is held. The struts 66 together form a snap mechanism. The second single gear 56 is with the snap mechanism relative to the first single gear 54 rotatable on the shaft 62 stored.

The steering angle sensor 50 further comprises a housing element 68 and a circuit board 70 , The circuit board 70 is here as a housing cover 70 executed, and forms together with the housing element 68 a housing 68 . 70 in which the rotor 52 is held rotatably. For this purpose, the shaft extends 62 between the housing element 68 and the circuit board 70 , On the circuit board 70 is a Hall sensor 72 assembled. The Hall sensor 72 here forms an evaluation 72 for determining a rotation of the rotor 52 from which a steering angle can be determined. The first single gear 54 indicates at its the circuit board 70 facing axial end a centrally disposed bore 74 on, in which the Hall sensor 72 is arranged. In an alternative embodiment, the housing comprises 68 . 70 a separate lid, and the circuit board 70 is in the case 68 . 70 held.

The steering angle sensor 50 is here as a magnetic steering angle sensor 50 executed. This is indicated by the rotor 52 at least one magnetic element associated with the rotor 52 is rotatable. According to the first embodiment, the first single gear is 54 designed as magnetic gear on which the at least one magnetic element is mounted. The Hall sensor 72 detects a change in the magnetic field in its environment, by a rotation of the at least one magnetic element with the rotor 52 is effected.

On the housing element 68 is a bearing element 76 formed, on which the shaft 62 of the first single gear 54 is rotatably mounted. The bearing element 76 thus forms a rotation axis for attachment of the first single gear 54 , The bearing element 76 is here as a storage pen 76 executed, which spans a cylinder. The first single gear 54 has one with the bearing pin 76 corresponding inner bore 78 on, with the first single gear 54 rotatable on the bearing pin 76 is held. The first single gear 54 extends on the bearing pin 76 in its axial direction with the shaft 62 up to the circuit board 70 ,

Two steering angle sensors 50 be in a steering device 80 used in a vehicle, as in 7 is shown. The steering device 80 includes a steering shaft 82 which is rotatably coupled to a steering wheel, wherein steering shaft 82 and steering wheel rotationally fixed to each other, so that a steering movement of the steering wheel to the steering shaft 82 is transmitted. At the steering shaft 82 is a steering shaft rotor 84 attached to the rotors 52 the two steering angle sensors 50 combs. In 7 are for better clarity, only the rotors 52 the steering angle sensors 50 shown. Additionally shows 8th in detail, like the steering shaft rotor 84 the rotors 52 the steering angle sensors 50 combs.

The steering movement of the steering wheel is controlled by the steering angle sensors 50 recorded and evaluated, as detailed below.

For detecting the steering angle, first the rotation of the steering wheel with the on the steering shaft 82 attached steering shaft rotor 84 on the rotors 52 the steering angle sensors 50 transfer. This rotation is done with the Hall sensor 72 the corresponding steering angle sensor 50 recorded and evaluated. Depending on a translation, that of the steering shaft rotor 84 and the rotor 52 is formed based on the detection with the Hall sensors 72 the two steering angle sensors 50 the steering angle determined.

The 8th shows schematically the Kämm the steering shaft rotor 84 with the rotor 52 which is a first single gear 54 and a second single gear 56 having. The first single gear 54 is with the second single gear 56 via a spring force element (not shown here) arranged clamped. The staggered representation of the single gears 54 . 56 in 8th should clarify that. In the real implementation would be the single gears 54 . 56 in the final position on the steering shaft rotor 84 almost congruent or only slightly offset from each other to allow for ideal Kämmungen.

LIST OF REFERENCE NUMBERS

10

Rotor (prior art)

12

first single gear (prior art)

14

second single gear (prior art)

16

Tooth (prior art)

18

Spring force element, ring spring (prior art)

20

Steering angle sensor (prior art)

22

Housing cover, printed circuit board, housing (prior art)

24

Hall sensor (prior art)

26

Housing element, housing (prior art)

28

Sleeve area (prior art)

30

Leadership area (prior art)

32

annular receptacle (prior art)

34

Recess (prior art)

X

Angle (prior art)

50

Steering angle sensor

52

rotor

54

first single gear

56

second single gear

58

Spring force element, ring spring

60

tooth

62

shaft

64

Through opening

66

strut

68

Housing element, housing

70

Housing cover, circuit board, housing

72

Hall sensor, transmitter

74

drilling

76

Bearing element, bearing pin

78

internal bore

80

steering device

82

steering shaft

84

Steering shaft rotor

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• US 8164327 B2 [0011]
• DE 102004021405 A1 [0012]
• DE 102008049680 A1 [0013]
• DE 102011122341 A1 [0014]

Claims (14)

A steering angle sensor (50) for a vehicle having a rotor (52) mountable in the vehicle such that it is rotated by rotation of a steering wheel of the vehicle via a steering shaft rotor (84) connected thereto, the rotor (52) a first and a second single gear (54, 56) which are rotatably mounted about a common axis of rotation, wherein the second single gear (56) is held concentrically to the first single gear (54) and rotatable relative to the first single gear (54), wherein the rotor (52) comprises a spring force member (58) biasing the first and second single gears (54, 56) circumferentially against each other, and wherein the steering angle sensor (50) comprises a housing member (68), characterized in that the first Single gear (54) has a shaft (62) with which the first single gear (54) is rotatably mounted on the housing member (68) and the second single gear (56) rotatably supported on the shaft (62) is. Steering angle sensor (50) after the preceding Claim 1 , characterized in that the steering angle sensor (50) is a magnetic steering angle sensor (50). the evaluation electronics (72) have a Hall sensor (72), and the rotor (52) has at least one magnetic element which is rotatable with the rotor (52). Steering angle sensor (50) according to one of the preceding claims, characterized in that the second single gear (56) in a region between the first single gear (54) and the housing element (68) is arranged. Steering angle sensor (50) according to one of the preceding claims, characterized in that the steering angle sensor (50) has a printed circuit board (70) with evaluation electronics (72) for determining a rotation of the rotor (52), the printed circuit board (70) has a housing cover (70 ) or as part of a housing cover (70), and the rotor (52) is held in a housing (68, 70) formed by the housing element (68) and the housing cover (70). Steering angle sensor (50) after the preceding Claim 4 characterized in that the shaft (62) extends between the circuit board (70) and the housing member (68). Steering angle sensor (50) according to any one of the preceding claims, characterized in that the first single gear (54) at its the printed circuit board (70) facing axial end has a centrally disposed bore (74), and the evaluation electronics (72) within the bore (74 ) is arranged. Steering angle sensor (50) according to any one of the preceding claims, characterized in that the housing element (68) has a bearing element (76) on which the first single gear (54) is rotatably mounted. Steering angle sensor (50) after the preceding Claim 7 , characterized in that the bearing element (76) is designed as a bearing pin (76), the first single gear (54) having an inner pin (76) corresponding to the bearing pin (76), and the first single gear (54) with its inner bore (78 ) is rotatably supported on the bearing pin (76). Steering angle sensor (50) according to any one of the preceding claims, characterized in that the first and / or the second single gear (54, 56) has a snap mechanism with which the first and the second single gear (54, 56) are mounted to each other. Steering angle sensor (50) according to any one of the preceding claims, characterized in that the spring force element (58) designed as a ring spring (58) and on the first and / or the second single gear (54, 56) is held. Steering angle sensor (50) according to one of the preceding claims, characterized in that the second single gear (56) has a central passage opening (64) with which the second single gear (56) is mounted on the shaft (62). A steering device (80) having a steering wheel, a steering shaft (82) rotationally fixed to the steering wheel, a steering shaft rotor (84) mounted on the steering shaft (82), and a steering angle sensor (50) of any preceding one Claims 1 to 11 wherein the steering shaft rotor (84) meshes with the rotor (52) of the steering angle sensor (50). Steering device (80) the previous Claim 12 , characterized in that the steering device (80) comprises a plurality of steering angle sensors (50) according to one of the preceding Claims 1 to 11 which are rotationally coupled to the steering shaft rotor (84) of the steering shaft (82). Vehicle with a steering device (80) according to one of the preceding Claims 12 to 13 ,

Images