JP4713493B2 - Operation parts for which tactile sense can be set by a program - Google Patents

Description

  In particular, the present invention relates to an operation component capable of setting a haptic sense by a program in an electronic circuit of an automobile.

  Operation parts that combine various movements are known. As such a device, a pressure / rotation switch, a joystick (pressure, shift, rotation) and the like are known. In known MMI (Man-Machine Interface) operating components, the reciprocating force and displacement behavior are often adjusted in a mechanically fixed manner by spring components. By this component, feedback of information by tactile sensation to the operator is also performed (Patent Document 1).

  From Patent Document 2, an operating device for a video magnetic tape device in a technically different field is known. This apparatus has a coil for simulating a rocking point regardless of the rotational position of the rotary head. Thereby, the mechanical function is electrically simulated.

  According to Non-Patent Document 1, the tactile sensation varies depending on the electric motor depending on the position of the cursor in the display in order to allow the driver to detect the input situation without diverting his gaze from the street and traffic. Is known to produce

An electrically driven liquid rotary head as a tactile operation component is also known (Patent Document 3). In this case, the space between the rotary head and the magnetic circuit is filled with a magnetorheological fluid. There, a coil is provided in order to produce a variable braking action on the rotary head.
German Patent Registration No. 4121571-C2 German Patent Registration No. 36005088-C2 German Patent Publication No. 10029191-A1 "Mensch-Machine-Interface", Proseminar Software fuer Automobilsteuergeraet, Referent Gary Weissenbacher, Seiten 7 bis 10

  Here, an object of the present invention is to present a new operation component having good operability.

  This problem is solved by the features of claim 1.

  The present invention forms a moment of force on the operating component, or in a special variant, a friction moment or a contact moment by dynamically adapting the operating current of the electromagnetic structure according to the displacement to be adjusted. That is, based on the idea of replacing the movement force and displacement behavior, which has been conventionally adjusted in a mechanically fixed form, with a behavior that can be arbitrarily set by a program electrically. In some cases, advantageously, mechanical feedback by a mechanical locking member or the like is not omitted. During operation, it is possible to arbitrarily change the force and displacement behavior (feedback by touch) of the operation component, and as a result, the operation force can be changed for various operation functions.

  In the improved configuration, the operator can freely select a predetermined behavior and adjust it according to the function behind it.

  Further, for example, feedback by touch can be performed only after the command is executed.

  Feedback due to the feeling of the moment of force on the operating part is mainly performed by a kind of locking member which can be composed of at least one locking disk and one spring, and this member is operated by electromagnetic structure. Alternatively, it is switched to an inoperative state. The variable spring force (force to push the locking disc) can be adjusted by the PWM signal for this electromagnetic structure. In another embodiment, a smooth disk having a constant friction value and a friction lever capable of changing the pressing force of the disk by a magnetic structure are used as the locking member. By changing the magnetic force, the friction moment is simulated during rotation.

  The central idea is not to completely replace the mechanical feel unconditionally with the electrical form, but to complement and change part of the mechanical feel with the electrical form, and to create a new operator philosophy. To adapt to.

  Furthermore, using an optoisolator as a rotation angle detector, it is possible to generate a signal for driving an electromagnetic structure according to the rotation angular velocity, and as a result, force and displacement according to the rotation angular velocity. The behavior of can be changed.

  The present invention will be described in detail with reference to the drawings based on embodiments.

  In FIG. 1, for example, an operation component 1 having a locking member 5 attached around is schematically illustrated in a generalized form. In this embodiment, the locking member is a locking disk 3 on which a spring 4 acts. The electromagnetic structure 2, here the coil core 2.1 operatively working in cooperation with the coil 2.2, the spring 4, depending on the magnetic force of the coil 2.2 and the torque of the coil core 2.1, The electromagnetic structure 2 is pressed onto or pulled away from the locking disk 3, i.e. the electromagnetic structure 2 switches the locking disk 3 and thus the feel to an active state or an inactive state.

  In the improved configuration, the spring force of the electromagnetic structure 2 can be changed in a known manner by the PWM signal in this case driving the coil 2.2. In this way, the pressure with which the spring 4 is pressed against the locking disk 3 can be changed by different magnetic fields.

  In the embodiment of FIG. 1, the position of the electrical structure 2 is set below the operating component 1. Of course, this position can be changed. It is important that the electromagnetic structure 2 can adjust the spring 4 relative to the locking disk 3.

  Instead of the locking disk 3 around or below the operating part 1, a smooth disk 3.1 with a constant friction value is used as a locking member 5, and instead of a spring 4, a friction lever not shown in detail is used as the locking member 5. In that case, a similarly sophisticated solution with another locking member 5.1 is realized. In this case, the friction lever can be applied to the disk 3.1 from the side, from below or from above. As indicated in FIG. 2, the electromagnetic structure 2 simulates a friction moment used as feedback information by touch during rotation.

  In FIG. 2, the disk 10 operates as a so-called locking member 5.2 with an upright electromagnetic structure 11 similar to the structure of FIG. In this case, like the spring or friction lever of FIG. 1, for example, the rubber-like means 12 here acts on the disc 10, preferably from below, to produce a braking moment, which braking moment is It acts on the operation component 1 and conveys the touch to the user.

  The opto-isolator 6 or equivalent (for example, a coding disk) that is present in or additionally attached to the operating component 1 functions as a rotation angle detector, and as a result, further depending on the rotation angular velocity, an electromagnetic A signal for the structure 2 can be generated, in which case this signal can influence the frictional moment or the braking moment and thus the felt feel.

  In a variant of the idea according to the invention, it is also possible to incorporate two locking discs and at least two springs. In that case, these locking discs can be placed on different surfaces on the operating part. These springs then advantageously have different spring lengths, so that one of these springs can always act in cooperation with one of the two locking discs. In this case, depending on the polarity of one electromagnetic structure, one of the two springs (right, left) can be manipulated and pressed against the corresponding locking disc. However, it is also possible to use a plurality of electromagnetic structures, a plurality of locking disks and their corresponding springs. That is limited only by the structural embodiment of the operating component 20 itself.

  FIG. 3 illustrates a possible implant configuration to the operating component 20 of the principles of the present invention. The basic components listed here are incorporated around the locking member 22 in the head 21 of the operation component 20. This component acts in cooperation with the magnet 23 as described as the locking member 5. Here, when the locking member 22 has a spring characteristic, the spring can be omitted.

  FIG. 4 illustrates the incorporation of the disk 24 as the locking member 5 into the operation component 20.

Schematic diagram of the principle of the present invention Schematic diagram of the variation in FIG. Incorporation of the principle of Fig. 1 into operation parts Incorporation of the principle of Fig. 2 into operation parts

Claims (2)

A rotatable operation component (1, 20) having a variable tactile sense, wherein the operation component (1, 20) generates a moment for feeding back the displacement of the operation component (1, 20) by tactile sense. It has a mechanical locking member (5, 5.2) connected to the component (1, 20), and the locking member (5, 5.2) uses the braking means (12) to operate the operating component (1 , 20) in an operating part having an electromagnetic structure (11, 23) in which an operating current that can be changed according to the displacement of the operating part (1, 20) flows in order to influence the behavior of force and displacement.
The locking member (5, 5.2) has a smooth disk (10, 24) connected to the operating component (1, 20) and having a constant friction value;
The braking means (12) is configured as a friction lever,
The friction lever acts on a part of the disk (10, 24) with respect to a direction parallel to the rotation axis of the disk (10, 24).
An operation part characterized by that.   2. The operating component according to claim 1, wherein the rotational angular velocity of the disk (10, 24) is detected by an optoisolator (6).

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