DE102019000784A1 - Device for displaying a steering angle of a motor vehicle and steering wheel - Google Patents

Abstract

The invention relates to a device for indicating a steering angle of a motor vehicle, comprising a tilt angle sensor for measuring a tilt of the device, wherein a magnetic module for tool-free attachment of the device for indicating a steering angle to a steering column of the motor vehicle is provided.
Also described is a steering wheel.

Description

Described are a device for displaying a steering angle of a motor vehicle and a steering wheel.

Devices for displaying a steering angle of a motor vehicle and steering wheels of the type mentioned are known in the art. Among other things, devices for steering a vehicle comprising a steering wheel and a steering wheel control device and their use are known. It is known that for a vertical mounting of the steering wheel, a separate external steering wheel spirit level can be used.

For setting a chassis geometry on a front axle of a motor vehicle, a steering angle of the motor vehicle must necessarily be determined. The steering angle corresponds to that of a mounted steering wheel. At the given time the landing gear setting on the assembly line but the steering wheel can not be installed in many types of vehicles, so that a steering angle measurement with the aforementioned conventional equipment (mechanical or optical steering wheel balance) can not be performed without mounting the steering wheel, adjust the suspension and the Disassemble the steering wheel again. To adjust the suspension geometry, it is also necessary to bring a steering shaft, which is to be actuated by the steering wheel later, in a predetermined position. Thus, the setting of the chassis geometry in the initial assembly of motor vehicles is currently very expensive.

From the DE 10 2016 015 000 A1 a device for detecting a steering wheel angle for a vehicle is known, which comprises a steering wheel and a steering wheel control unit, wherein in the steering wheel, an acceleration sensor for detecting a steering angular acceleration is arranged, wherein the acceleration sensor has an internal silicon pendulum, which by both a steering angular acceleration and by an inclination of the acceleration sensor is deflected.

Thus, the task of developing devices for displaying a steering angle of a motor vehicle and steering wheels of the type mentioned in such a way that a simpler and faster suspension adjustment in motor vehicles during initial assembly is possible.

The object is achieved by a device for displaying a steering angle of a motor vehicle according to claim 1 and a steering wheel according to the independent claim 10. Further developments and further developments are the subject of the dependent claims.

Disclosed is a device for indicating a steering angle of a motor vehicle, with a tilt angle sensor for measuring a tilt of the device, wherein a magnetic module for tool-free attachment of the device is provided on a steering column of the motor vehicle.

The fact that the device has a magnetic module, it can be attached without tools to the steering column of the motor vehicle and removed again. The magnet module holds the device securely on the steering column and prevents accidental slipping of the device from the steering column. Using the tilt angle sensor then a simple measurement of the steering angle is possible without having to mount the final steering wheel.

The magnet module may be configured to engage the steering column, for example, into a cavity of the steering column to enable accurate alignment of the device.

The magnetic module can be designed and positioned so that it does not come into direct contact with the steering column, but that there is always an air gap between the magnetic module and the steering column. In this way, damage to the steering column can be avoided.

According to a first further embodiment, it can be provided that the device is installed in a steering wheel, wherein the steering wheel has a hub for connection to the steering column.

The hub of the steering wheel can cooperate with a corresponding receptacle of the steering column and thereby produce a frictional connection, by means of which the steering of the motor vehicle is actuated and a necessary position, for example a zero position of the same can be produced.

The steering wheel may for example be a standard steering wheel of the relevant type of motor vehicle, in which an airbag module has been removed.

According to another further embodiment, an adapter plate may be provided, on which the inclination angle sensor, a power supply and a measuring electronics are fixed.

Using the adapter plate, it is possible to use the specific measuring electronics incl. Inclination angle sensor for different types of motor vehicles with different steering wheels. This reduces the number of necessary, necessary measurement electronics and devices in a plant and thus the costs.

According to another further embodiment, it can be provided that the adapter plate is fixed in the steering wheel.

This makes it possible to quickly rebuild the device for different types of motor vehicles.

According to another further embodiment, it may be provided that the steering wheel has at least one operating element which is connected to the measuring electronics.

In this way it is possible to operate the device by built-in controls in the steering wheel, which makes it easier to design the device, since no separate controls are required.

According to another further embodiment, it can be provided that an optical and / or acoustic display device is provided.

According to another further embodiment, it can be provided that the power supply can be exchanged without tools.

This makes it possible to use the device without charging breaks and without external power supply in multi-shift operation of a motor vehicle factory. The power supply can have, for example, an accumulator or a battery pack or block.

According to another further embodiment, it can be provided that the measuring electronics has a memory for storing calibration data.

Thus, it is possible to calibrate the device prior to use and to store the calibration data. This is particularly useful after a conversion to another type of vehicle, for example by conversion to another steering wheel. This always creates assembly inaccuracies that can be compensated by the calibration.

According to another further embodiment, it can be provided that the adapter plate has standard connections for the measuring electronics, the power supply, the magenta module and / or the display as well as individual connections for the steering wheel.

In this way it is possible to provide different adapter plates for different motor vehicles, which can always be used with the same other functional components of the device. In the event that a steering wheel is provided, the adapter plate can then be steering wheel specific.

A first independent article relates to a steering wheel with a device according to one of the preceding claims.

Further advantages, features and details will become apparent from the following description, in which - where appropriate, with reference to the drawings - at least one embodiment is described in detail. The same, similar and / or functionally identical parts are provided with the same reference numerals.

• 1 ein Lenkrad mit einer Vorrichtung zur Anzeige eines Lenkwinkels;
• 2 eine Seitenansicht der Vorrichtung aus 1;
• 3 eine perspektivische Ansicht der Vorrichtung aus 1;
• 4A eine Lenksäule eines Kraftfahrzeugs;
• 4B eine perspektivische Schnittdarstellung der Lenksäule mit aufgesetzter Vorrichtung aus 1, sowie
• 5 eine Adapterplatte der Vorrichtung aus 1.

They show schematically:

• 1 a steering wheel with a device for indicating a steering angle;
• 2 a side view of the device 1 ;
• 3 a perspective view of the device 1 ;
• 4A a steering column of a motor vehicle;
• 4B a perspective sectional view of the steering column with attached device 1 , such as
• 5 an adapter plate of the device 1 ,

1 shows a steering wheel 2 with a device for indicating a steering angle 4 ,

The device for displaying a steering angle 4 is used to make a suspension adjustment during the initial assembly of a motor vehicle, since the steering angle for correct adjustment of the chassis of the motor vehicle is necessary. To adjust the suspension, the steering angle must be read and the suspension adjusted so that the steering angle is in certain suspension settings within a certain tolerance range.

The steering wheel 2 is a standard steering wheel of the motor vehicle type to be mounted and adjusted. The steering wheel 2 has a recording 6 for an Airbagtopf, but no Airbagtopf is mounted. Instead, the recording offers 6 Space for the device to display a steering angle 4 ,

The device for displaying a steering angle 4 has a display 8th on, on the optical information for displaying the current steering angle of a motor vehicle to be mounted can be output to a mechanic of the motor vehicle.

The steering wheel 2 has keypads 10 . 12 on that with the device for indicating a steering angle 4 are coupled, so that the device for displaying a steering angle 4 using the keypads 10 . 12 can be served. Among other things, by means of keypads 10 . 12 a calibration of the device for displaying a steering angle 4 possible.

The device for displaying a steering angle 4 also has a battery pack 14 on, which can be replaced without tools. In this way, the device for indicating a steering angle 4 be permanently used, provided that a charged replacement battery pack is always available. The battery pack 14 can be determined for example by means of a snap closure.

2 shows a side view of the device for indicating a steering angle 4 without steering wheel.

Using a magnetic module 16 is the device for displaying a steering angle 4 in a steering column (in 2 not shown) of the motor vehicle. The magnetic module 16 has a ring magnet 18 on, which attracts the metal steering column and thus the device for indicating a steering angle 4 fixed to the steering column. To remove the device for displaying a steering angle 4 It suffices the attraction of the ring magnet 18 by pulling hard enough on the device to indicate a steering angle 4 to overcome in one direction away from the steering column.

The magnetic module 16 is on an adapter plate 20 screwed, including a counter lever 22 is provided, which is accessible from the bottom, for example by means of an elongated tool such as a screwdriver. The counter lever 22 may have a recess or hole for engaging the tool. To protect the remaining components of the device for displaying a steering angle 4 is a cover plate 22 provided that the screwdriver can not pierce.

On the adapter plate 20 are a tilt angle sensor 26 as well as an electronics 28 arranged. The tilt angle sensor 26 measures the current angle of inclination of the device for indicating a steering angle 4 , With the help of electronics 28 On the one hand calibration information can be stored and on the other hand it can be the display 8th be controlled.

3 shows a perspective view of the device for displaying a steering angle 4 without steering wheel.

The device for displaying a steering angle 4 is relatively narrow on the adapter plate 20 set up to take in the picture 6 of the steering wheel 2 to fit.

The battery pack 14 is at the side of the display 8th arranged to from the top in the steering wheel 2 mounted device for displaying a steering angle 4 to be exchanged.

4A shows a steering column 30 of the motor vehicle with magnetic module 16 ,

The steering column 30 has a toothing 32 on that with a hub of the steering wheel 2 meshes so the steering wheel 2 the steering column 30 can operate.

The ring magnet 18 is positioned so that the steering column 30 , especially the gearing 32 the steering column 30 , is not affected, damage to the steering column 30 and the gearing 32 to avoid. The ring magnet 18 is with a locknut 34 on a threaded bolt 36 secured.

4B shows a perspective sectional view of the steering column 30 with attached device for indicating a steering angle 4 ,

In the field of gearing 32 is the steering column 30 hollow, so the threaded bolt 36 in the steering column 30 dips and a proper positioning of the steering wheel 2 on the steering column 30 allows.

5 shows the adapter plate 20 the device for displaying a steering angle 4 ,

The adapter plate 20 has connections on the one hand 38 for fixing to the respective steering wheel 2 the type of motor vehicle concerned. The connections 38 as well as the contour of the adapter plate 20 are specific to the respective steering wheel 2 ,

Furthermore, there are connections 40 provided for fixing the remaining components of the device for indicating a steering angle 4 , so for example the display 8th , the battery pack 14 , the counter lever 22 , the cover plate 24 , the tilt angle sensor 26 as well as the electronics 28 etc. is used.

Furthermore, a threaded hole 42 provided in the threaded bolt 36 of the magnetic module 16 can be screwed. The threaded bolt 36 can by using the counter lever 22 , in the threaded bolt 36 is screwed in, secured. The lock lever can do this through a slot 44 to be moved. The cover plate 24 is arranged so that it is the slot 44 covered.

Although the invention has been further illustrated and explained in detail by way of preferred embodiments, the invention is not limited by the disclosed examples, and other variations can be derived therefrom by those skilled in the art without departing from the scope of the invention. It is therefore clear that a multitude of possible variations exists. It is also to be understood that exemplified embodiments are really only examples that are not to be construed in any way as limiting the scope, applicability, or configuration of the invention. Rather, the foregoing description and description enable the skilled artisan to practice the exemplary embodiments, and those of skill in the knowledge of the disclosed inventive concept may make various changes, for example, on the function or arrangement of particular elements recited in an exemplary embodiment. without departing from the scope defined by the claims and their legal equivalents, such as further explanation in the description.

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

• DE 102016015000 A1 [0004]

Claims (10)

Device for indicating a steering angle of a motor vehicle, having an inclination angle sensor (26) for measuring an inclination of the device (4), characterized in that a magnet module (16) for tool-free attachment of the device for indicating a steering angle (4) on a steering column (30 ) of the motor vehicle is provided. Device after Claim 1 , characterized in that the device for indicating a steering angle (4) in a steering wheel (2) is installed, wherein the steering wheel (2) has a hub for connection to the steering column (30). Device after Claim 1 or 2 , characterized in that an adapter plate (20) is provided, on which the inclination angle sensor (26), a power supply (14) and a measuring electronics (28) are fixed. Device after Claim 3 , characterized in that the adapter plate (20) in the steering wheel (2) is fixed. Device according to one of the preceding Claims 2 to 4 , characterized in that the steering wheel (2) has at least one operating element (10, 12) which is connected to the measuring electronics (28). Device according to one of the preceding claims, characterized in that an optical and / or acoustic display device (8) is provided. Device according to one of the preceding claims, characterized in that the power supply (14) is exchangeable without tools. Device according to one of the preceding claims, characterized in that the measuring electronics (28) has a memory for storing calibration data. Device according to one of the preceding claims, characterized in that the adapter plate (20) standard connections (38, 40) for the measuring electronics (28), the power supply (14), the magnetic module (16) and / or the display (8) and individual Having connections (38) for the steering wheel (2). Steering wheel with a device (4) according to one of the preceding claims.

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