DE102007057161B4 - control arrangement - Google Patents

Abstract

Control lever arrangement with two axes pivoting handle, wherein the handle is pivotally coupled to a first pivot member (1) which is pivotally mounted about a second pivot member (3) stationary first axis (2) on the second pivot member (3), wherein the second Pivot part in turn about a first axis (2) and the second pivoting part (3) stationary axis (5) is pivotally mounted on a relatively stationary bearing part (4), and wherein relative rotations between the first and the second pivot member (1,3) or between the second pivot part (3) and the stationary bearing part (4) can be detected by means of non-contact sensors which on the one hand a permanent magnet (19) on one of two relatively rotatable or pivotable parts and on the other hand a magnetic field sensitive signal generating arrangement on the other Having relatively rotatable or pivotable parts, characterized in that the signal product Arrangement is designed as a chip with a Hall element and two chips are arranged on each other in the manner of a double layer for redundant signal generation.

Description

The invention relates to a control arrangement with a handle pivotable about two axes, e.g. Joystick or joystick.

Such control arrangements are well known and available on the market. The control strokes of the handle are usually detected by electrical potentiometers, which are mechanically coupled to the handle and accordingly can generate signals that are correlated with the pivoting of the handle about the two axes.

From the DE 102 31 015 A1 An apparatus for translating a biaxial pivotal movement of a shift lever into a planar movement of a shift lever position sensor is known, comprising a guide member for restricting movement of the shift lever position sensor to movement in a non-curved plane, a transmission member for transmitting pivotal movement of the shift lever about a first pivot axis to a pivotal movement the shift lever position sensor in the non-curved plane, and a hinge connection for converting a pivotal movement of the shift lever about a second pivot axis in a linear movement of the shift lever position sensor in the non-curved plane, so that the shift lever positions of the shift lever in the non-curved plane are detectable.

From the DE 10 2006 002 634 A1 is an operating element, in particular joystick, known with a flip-top feeler for a motor vehicle, comprising a tiltably mounted lever with a primary and at least one secondary lever arm and at least one pair of permanent magnets, wherein a magnet of a pair of permanent magnets on a secondary lever arm and a magnet is arranged stationary in the control element, such that in the center position of the control element unequal poles of the magnets are spaced apart.

From the DE 10 2006 022 336 A1 For example, a magnetic field sensor is known, comprising a first sensor arranged to detect a magnetic field acting in a plane, and a second sensor arranged with respect to the first sensor to detect a component of the magnetic field perpendicular to the plane.

From the DE 197 30 297 A1 is an operating device for two-dimensional dialog movement for selecting and selecting functions and functional groups, in particular for use in motor vehicles, known. By rotating a rotary switch located in a first axial position, the dialogue can be moved in a first dimension, wherein the dialogue can be moved in a second dimension by turning the rotary switch located in a second axial position. With another switch, the selected functions or function groups can be selected, wherein a device reports the selected functions or groups of functions optically, acoustically and / or haptically.

In these known constructions is disadvantageous that a comparatively high effort is required if a high precision is to be guaranteed for long operating times without major maintenance.

It is therefore an object of the invention to allow for a control arrangement of the type specified with low production costs high precision and long operating times.

This object is achieved in that a handle provided as a control lever is pivotally coupled to a first pivot body which is pivotally mounted on a second pivot body about a second pivot body stationary first axis, and that the second pivot body to a first axis crossing and to the second swivel body stationary second axis is pivotally mounted on a relatively stationary bearing part, and that pivotal movements of the first or second swivel body relative to the respective other swivel body and / or relative to the bearing part by means of non-contact sensor arrangement can be detected.

It is provided that the sensor arrangement on the one hand has a permanent magnet on one of two relatively pivotable parts and on the other hand, a cooperating magnetic field-sensitive sensor. According to the invention, the signal transmitter unit is formed as a chip with a Hall element and for redundant signal generation, two chips are arranged on each other in the manner of a double layer.

The invention is based on the general idea of exploiting commercially available high-precision sensors for detecting the direction of a magnetic field for sensing the pivoting movements of a handle pivotable about a plurality of axes.

The invention has the advantage that the required sensor arrangements work completely wear-free and to ensure a high precision of the control essentially only a good pivotal mounting of the handle with respect to the axes is required.

Since high-quality pivot bearings as well as the electronically operating sensors are available at low cost, overall very low production costs can be achieved.

According to a particularly preferred embodiment of the invention, the lever may be rotatably arranged on the first pivoting body about a third axis perpendicular to the other pivot axes, so that with a corresponding sensor arrangement, a three-axis control is possible.

Moreover, the lever may have a movable in the direction of the third axis grip part whose displacements are also detected by a sensor arrangement. This special signals can still be generated in a multi-axis control.

Moreover, reference is made to the claims and the following explanation of the drawing with regard to preferred features of the invention, based on a particularly preferred embodiment of the invention will be explained in more detail.

Protection is claimed not only for expressly specified feature combinations but also for any combination of the individual features shown in principle.

In the drawing, the only Fig. Shows a perspective sectional view of a control arrangement according to the invention.

A substantially cylindrical first pivoting body 1 is by means of an axis fixedly connected to it 2 in bearing eyes of a frame-shaped second pivoting body 3 pivotally mounted, which in turn is fixedly mounted to him axle journal in bearing eyes of a relatively stationary housing 4 one to the axis 2 vertical axis 5 is pivotally mounted. The swivel body 1 is stuck to a ground via extensions 6 connected, which is a lever rod 7 with rotatability about the rod axis stores.

By means of a return spring suspension 8th becomes the lever rod 7 stretched in an initial rotational position.

On the lever rod 7 is a jack 9 axially displaceable and rotatably arranged, which in turn with an elastic plastic calotte 10 is firmly connected.

The plastic dome 10 has a double function. On the one hand, it closes the case 4 on the lever rod 7 , On the other hand, it serves as Rückstellfederung for a handle 11 , which at the free end of the lever rod 7 axially displaceable and relative to the lever rod 7 is arranged non-rotatably.

The swivel body 1 acts with a return arrangement 12 together. This consists essentially of a at the bottom of the housing 4 fixed guide pins 13 on which a slide bushing 14 axially displaceable and in the radial direction of the guide pin 13 is performed without play. At the slide bush 14 is a buffer-like ring flange 15 arranged by one on the bottom of the case 4 supported helical compression spring 16 against the facing downwardly facing cylinder edge of the cylindrical pivot body 1 is tense. This is the swivel body 1 pushed into a position in which the swivel body 1 with its lower edge of the cylinder one to the plane of the annular flange 15 parallel position occupies and the lever rod 7 equiaxial to the guide pin 13 stands. Now if the lever rod 7 is pivoted in any direction, the swivel body 1 tilted accordingly, with the annular flange 15 against the force of the helical compression spring 16 is depressed, because the first swivel body 1 one for pivotal movement of the lever rod 7 corresponding tilting about the axis 2 and / or the axis 5 performs. To the friction between the ring flange 15 and the facing end edge of the swivel body 1 is low on the ring flange 15 a friction-reducing sliding layer 13 arranged.

Due to the construction described above, the handle has 11 a total of four degrees of freedom of movement: two degrees of freedom result from the pivoting about the axes 2 and 5 , Another degree of freedom results from the rotational mobility with respect to the axis of the lever rod 7 and a fourth degree of freedom is due to the axial displaceability of the handle 11 on the lever rod 7 , According to a particularly preferred embodiment of the invention, the possible movements of the handle 11 detected by a non-contact sensor. In this case, for each degree of freedom of mobility, for example, a Hall sensor arrangement arranged on a chip is provided which interacts with a permanent magnet which is movable relative thereto. For example, rotational movements of the lever rod 7 with respect to the swivel body 1 to grasp is at the lower end of the lever rod in the drawing 7 a disc-shaped permanent magnet 19 arranged, one half of the disk forms the one magnetic pole and the other half of the disk forms the other magnetic pole. Closely adjacent to the permanent magnet 19 is at one with the swivel body 1 firmly connected carrier a Hall sensor chip 20 arranged, which is the rotational position of the permanent magnet 19 generated magnetic field relative to the swivel body 1 recorded and generates corresponding signals, which then serve as input signals of a basically any control.

To rotational movements with respect to the axis 2 is to detect at least one front end of the axis 2 one to the permanent magnet 19 arranged similar permanent magnet, with a second pivoting body 3 arranged sensor chip cooperates.

For detecting rotational movements with respect to the axis 5 is at one of the pivotal mounting of the pivoting body 3 on the housing 4 Serving axle journal of the swivel body 3 arranged a disc-shaped permanent magnet, which with a sensor chip on the associated bearing eye of the housing 4 interacts.

It is advantageous that the sensor chips can each be arranged twice in order to be able to generate redundant signals. Here, the fact can be exploited that the sensor chips have an extremely small thickness and can be arranged correspondingly superimposed in the manner of a double layer without significant space requirements. Moreover, it is of course also possible, for example, at both ends of the axle 2 each to arrange a permanent magnet with associated sensor chip. In a corresponding manner, both bearing pins of the swivel body 3 each carrying a permanent magnet, which then with an adjacently arranged sensor chip on the respective bearing eye of the housing 4 interacts. Also the sensor chip 20 for evaluating the rotational movements of the lever rod 7 can be formed twice in the manner of a double layer to detect the rotational movements redundant.

Also sliding movements of the handle 11 in the axial direction of the lever rod 7 can be detected in a similar way without contact: if at the top of the lever rod in the drawing 7 a permanent magnet is arranged, with a handle in the 11 embedded or on the handle 11 arranged sensor chip cooperates, can be the axial movement of the handle 11 determine. As a result, so can by pivoting movements of the lever rod 7 and by rotational movement of the handle 11 three parameters are controlled, in which case the respectively set parameter combination by depressing the handle 11 , ie by an axial movement of the handle 11 on the lever rod 7 , Can be confirmed, that is the case of an axial movement of the handle 11 generated signal "confirms" a previously generated signal combination.

Claims (2)

Control lever arrangement with two axes pivoting handle, wherein the handle is pivotally coupled to a first pivot member (1) which is pivotally mounted about a second pivot member (3) stationary first axis (2) on the second pivot member (3), wherein the second Pivot part in turn about a first axis (2) and the second pivoting part (3) stationary axis (5) is pivotally mounted on a relatively stationary bearing part (4), and wherein relative rotations between the first and the second pivot member (1,3) or between the second pivot part (3) and the stationary bearing part (4) can be detected by means of non-contact sensors which on the one hand a permanent magnet (19) on one of two relatively rotatable or pivotable parts and on the other hand a magnetic field sensitive signal generating arrangement on the other relative to each other rotatable or pivotable parts, characterized in that the signal generator Arrangement is designed as a chip with a Hall element and two chips are arranged on each other for the redundant signal generation in the manner of a double layer. Control lever arrangement according to Claim 1 , characterized in that each chip of the double layer is formed with a plurality of Hall elements.

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