WO2018230088A1 - Input device - Google Patents

Abstract

This input device is provided with: an operation detection unit (112) that detects the operation state of an operation body (F) with respect to an operation surface (111); a control unit (140) that inputs data to a prescribed device (50) in accordance with the operation state; a drive unit (120) that vibrates the operation surface; and a load detection unit (130) that detects the operation load (W) of the operation body with respect to the operation surface. When the operation body is in contact with the operation surface, the control unit controls the drive unit to generate reciprocating vibration in the direction of a movement destination (52a) of the operation body deduced from the operation state, such that the speed or the acceleration of the vibration is different between the forward path-side and the return path-side of the vibration. The control unit changes the speed or the acceleration of the vibration on the forward path-side or the return path-side in accordance with the operation load.

Description

Input device Cross-reference of related applications

This application is based on Japanese Patent Application No. 2017-116210 filed on June 13, 2017, the contents of which are incorporated herein by reference.

This disclosure relates to an input device that enables an input operation using an operating body such as a finger, such as a touch pad or a touch panel.

As a conventional input device, for example, the one described in Patent Document 1 is known. An input device (electronic device) of Patent Document 1 includes a contact surface that an operating body (for example, an operator's finger) contacts, a housing that supports the contact surface, and a drive device that moves the contact surface relative to the housing. It has. The contact surface is moved by the driving device based on the position information of the operating body.

As a result, the contact surface is moved in the direction opposite to the moving direction of the operating body to provide a drag to the operating body, and the contact surface is moved in the same direction as the moving direction of the operating body. Force (inductive force) is applied.

JP 2016-184428 A

This disclosure is intended to provide an input device that can obtain a stable pulling force even when the operation load of the operation body on the operation surface is different.

In the aspect of the present disclosure, the input device includes an operation detection unit that detects an operation state of the operation body with respect to an operation surface that is an operation side, and an input to a predetermined device according to the operation state detected by the operation detection unit A control unit that performs the operation, a drive unit that vibrates the operation surface in a direction in which the operation surface expands, and a load detection unit that detects an operation load of the operation body on the operation surface. When the operation body is in contact with the operation surface, the control unit reciprocates in the direction of the movement destination of the operation body estimated from the operation state by the operation detection unit with respect to the drive unit. Is generated on the operation surface, and vibration control is performed so that the vibration speed or acceleration is different between the reciprocating vibration forward path side and the return path side. When executing the vibration control, the control unit changes the speed or acceleration magnitude of the vibration on the forward path side or the return path side according to the operation load.

According to the above input device, when vibration control is executed by the control unit, vibrations with different speeds or accelerations are generated on the operation surface in the direction of the movement destination of the operating body on the forward path side and the return path side. . In a direction in which the speed or acceleration of vibration is large, slip occurs between the operation surface and the operation object, and the operation object is less likely to follow the movement of the operation surface and is left at that position due to the law of inertia. To be left). On the contrary, in the direction where the speed or acceleration of vibration is small, the frictional force between the operation surface and the operation body acts, and the force that moves with the movement of the operation surface is applied to the operation body according to the law of inertia. In general, the operating body is pulled in a direction in which the vibration speed or acceleration is small.

Therefore, by executing the vibration control as described above, an effective pulling force can be obtained on the side where the vibration speed or acceleration is small in a small movable region. Therefore, when the movement amount of the operating body is large as in the prior art, the problem that the movement amount of the contact surface must be increased accordingly can be eliminated.

Here, when the operation load by the operating body changes, the frictional force between the operating surface and the operating body changes. Along with this, the sliding state between the operation surface and the operation body changes, and the pulling force changes. That is, the tactile sensation of retraction changes. In the present disclosure, when executing the vibration control, the control unit changes the speed of vibration or the magnitude of acceleration on the forward path side or the return path side in accordance with the operation load. Thereby, it becomes possible to suppress the change of the drawing force accompanying the operation load, and a stable drawing force can be obtained.

The above and other objects, features and advantages of the present disclosure will become more apparent from the following detailed description with reference to the accompanying drawings. The drawing
It is explanatory drawing which shows the mounting state of the input device in a vehicle, It is a block diagram which shows the input device in 1st Embodiment, It is sectional drawing which shows an operation part and a load sensor, It is a graph for explaining the relationship between the operation load and the frictional force, It is a flowchart showing the control content performed by the control unit, It is explanatory drawing which shows a mode that the finger operation to 1 axial direction is performed, It is explanatory drawing which shows a mode that the finger operation to a diagonal direction (biaxial direction) is performed, It is explanatory drawing which shows the point at the time of changing a standard vibration pattern with respect to operation load, It is explanatory drawing which shows the point at the time of changing vibration acceleration, It is sectional drawing which shows the operation part and load sensor in 2nd Embodiment.

In the input device of Patent Document 1, when the amount of movement of the operating body is large, it is necessary to increase the amount of movement of the contact surface accordingly. Therefore, it is necessary to increase the movable range of the contact surface in the case, leading to an increase in size of the case and lack of realism.

Therefore, in the previous application (Japanese Patent Application No. 2017-44196), the present inventors generate vibrations reciprocating in the direction of the movement destination of the operating body on the operation surface, and on the forward path side and the return path side of the reciprocating vibration. An input device was proposed to control the vibration speed or acceleration.

In this input device, in the direction in which the vibration speed or acceleration is large, slip occurs between the operation surface and the operation body, and due to the law of inertia, the operation body is less likely to follow the movement of the operation surface, It will be left in that position. On the contrary, in the direction where the speed or acceleration of vibration is small, the frictional force between the operation surface and the operation body acts, and the force that moves with the movement of the operation surface is applied to the operation body according to the law of inertia. It becomes easy to work.

As a result, it is possible to obtain an effective pulling force on the side where the vibration speed or acceleration is small in a small movable region, and according to this when the movement amount of the operating body is large as in the prior art. The problem that the amount of movement of the contact surface also has to be increased was solved.

However, depending on the operation load (pressing force) on the operating surface of the operating body, the frictional force between the operating surface and the operating body may change, and a stable pulling force may not be obtained. I found it different.

This disclosure is to provide an input device that can obtain a stable pull-in force even when the operation load of the operation body on the operation surface is different.

Hereinafter, a plurality of modes for carrying out the present disclosure will be described with reference to the drawings. In each embodiment, parts corresponding to the matters described in the preceding embodiment may be denoted by the same reference numerals, and redundant description may be omitted. When only a part of the configuration is described in each mode, the other modes described above can be applied to the other parts of the configuration. Not only combinations of parts that clearly indicate that the combination is possible in each embodiment, but also a combination of the embodiments even if they are not clearly specified unless there is a problem with the combination. It is also possible.

(First embodiment)
An input device 100 according to the first embodiment is shown in FIGS. The input device 100 of this embodiment is applied to a remote operation device for operating the navigation device 50, for example. The input device 100 is mounted on the vehicle 10 together with the navigation device 50. The navigation device 50 corresponds to a predetermined device of the present disclosure.

The navigation device 50 is a route guidance system that displays the current position information of the vehicle on the map, traveling direction information, or guidance information for a destination desired by the operator. As shown in FIG. 1, the navigation device 50 has a liquid crystal display 51 as a display unit. The liquid crystal display 51 is disposed at the center of the instrument panel 13 of the vehicle 10 in the vehicle width direction, and the display screen 52 is visually recognized by the operator.

The navigation device 50 is formed separately from the input device 100, and is set at a position away from the input device 100. The navigation device 50 and the input device 100 are connected to each other by, for example, a Controller Area Network bus (CAN bus (registered trademark)).

The display screen 52 of the liquid crystal display 51 displays the position of the vehicle on the map, and various operation buttons 52a for enlarged display, reduced display, destination guidance setting, and the like are displayed. (FIGS. 6 and 7). The operation button 52a is a so-called operation icon. Further, on the display screen 52, for example, a pointer 52b designed in an arrow shape is displayed so as to correspond to the position of the operator's finger F (operation body) on an operation unit 110 (operation surface 111) described later. It is like that.

The input device 100 is provided at a position adjacent to the armrest 12 in the center console 11 of the vehicle 10 as shown in FIGS. The input device 100 includes an operation unit 110, a drive unit 120, a load sensor 130, a control unit 140, and the like.

The operation unit 110 forms a so-called touch pad, and is a part for performing an input operation on the navigation device 50 by an operator's finger F. The operation unit 110 includes an operation surface 111, a touch sensor 112, a housing 113, and the like.

The operation surface 111 is exposed to the operator side at a position adjacent to the armrest 12, and is a flat surface part on which the operator performs finger operations. For example, a material that improves the sliding of the finger over the entire surface is provided. It is formed by that. It is set so that input for operations (selection, push determination, etc.) for various operation buttons 52a displayed on the display screen 52 can be performed by an operator's finger operation on the operation surface 111. The operation button 52a on the display screen 52 corresponds to “the movement destination of the operation object estimated from the operation state” on the operation surface of the present disclosure.

The touch sensor 112 is, for example, a capacitance type operation detection unit provided on the back side of the operation surface 111. The touch sensor 112 is formed in a rectangular flat plate shape, and detects an operation state of the sensor surface with the operator's finger F.

The touch sensor 112 has a grid of upper electrodes 112a extending along the x-axis direction (FIGS. 6 and 7) on the operation surface 111 and lower electrodes 112b extending along the y-axis direction (FIGS. 6 and 7). It is formed by arranging. Each of these electrodes 112a and 112b is connected to a control unit 140 described later.

Each electrode 112a, 112b is configured to generate a capacitance (predetermined capacitance value) at the position of the operator's finger F close to the sensor surface (in the operation position coordinates). A capacitance signal (sensitivity value) is output to the control unit 140. The sensor surface is covered with an insulating sheet made of an insulating material. The touch sensor 112 is not limited to the capacitance type, and various types such as other resistive film types can be used.

The housing 113 is a support portion that supports the operation surface 111 and the touch sensor 112. The housing 113 is disposed, for example, inside the center console 11.

The driving unit 120 vibrates the operation surface 111 in two directions of the x and y axes in the direction in which the operation surface 111 spreads, and is provided on at least one of the four sides around the operation surface 111. The drive unit 120 is connected to a control unit 140, which will be described later, and the generation of vibration is controlled by the control unit 140.

The drive unit 120 generates vibration in one axial direction (x-axis direction or y-axis direction) on the operation surface 111 by enabling vibration in only one axial direction out of the two axial directions. By simultaneously enabling biaxial vibrations, the operation surface 111 can generate oblique vibrations that are a combination of both vibrations.

Also, the drive unit 120 can operate so that the vibration speed or acceleration differs on the forward and backward sides of the reciprocating vibration.

As the drive unit 120, for example, an electromagnetic actuator such as a solenoid or a voice coil motor, a vibrating body such as a piezo, or a combination of the vibrating body and a spring can be used. For example, if one vibrating body generates biaxial vibration, the driving unit 120 is formed by providing one vibrating body on at least one of the four sides around the operation surface 111. be able to. Alternatively, if the vibrating body generates vibration only in one axial direction, the driving unit 120 is provided by providing one vibrating body (two in total) on each of two adjacent sides around the operation surface 111. Can be formed. Alternatively, the drive unit 120 can be formed by providing a combination of a uniaxial vibrating body and a spring on opposite sides and providing two sets so that the vibration directions are orthogonal.

The load sensor 130 is a sensor that detects an operation load (W) due to an operator's finger operation on the operation surface 111. The load sensor 130 corresponds to the load detection unit of the present disclosure. In the present embodiment, the load sensor 130 utilizes the electrodes 112a and 112b. A sheet-like elastic body 131 is interposed between the electrodes 112a and 112b, and voltage application and discharge are performed. A circuit is provided and formed.

In the load sensor 130, the elastic body 131 is deformed (thickness changes) according to the operation load W at the time of a finger operation on the operation surface 111, and the distance between the electrodes 112a and 112b changes. ing. When the distance between the electrodes 112a and 112b changes, the capacitance (capacitance value) generated between the electrodes 112a and 112b changes.

Then, between the electrodes 112a and 112b, the voltage is applied and charged by a discharge circuit, and then discharged, and then discharged to grasp the discharge amount (time until the charge amount becomes zero). The magnitude of the electric capacity, that is, the magnitude of the operation load W can be detected. A load signal indicating the magnitude of the capacitance (corresponding to the operation load W) at this time is output to the control unit 140.

The control unit 140 includes a CPU, a RAM, a storage medium, and the like. From the signal obtained from the touch sensor 112, the control unit 140 sets the operation state of the operator's finger F, the contact position of the finger F on the operation surface 111 (the position of the pointer 52b on the display screen 52), and various operation buttons 52a. The direction from the operator's finger F (pointer 52b) to the nearest operation button 52a, the distance from the operator's finger F (pointer 52b) to the nearest operation button 52a, and the like are acquired. In addition, the control unit 140 acquires the operation load W at the time of finger operation from the load signal obtained from the load sensor 130.

In addition, the control unit 140 acquires the presence / absence of a push operation at a position corresponding to the operation button 52a on the operation surface 111 as the operation state. And the control part 140 controls the generation | occurrence | production state of the vibration by the drive part 120 according to these operation states (it mentions later in detail).

The configuration of the input device 100 of the present embodiment is as described above. Hereinafter, the operation and effect will be described with reference to FIGS.

First, the relationship between the operation load W and the frictional force Fr in the input device 100 will be briefly described with reference to FIG.

As shown in FIG. 4A, the frictional force Fr generally generated by relative movement between objects is calculated by multiplying the friction coefficient μ inherent to the object by a normal force (= vertical load = operation load) N. It is known that you can. Accordingly, the pull-in force in the input device 100 caused by the frictional force Fr with respect to the finger F on the operation surface 111 varies depending on the vertical load N, that is, the operation load W.

Here, as shown in FIG. 4B, the friction coefficient μ has a value unique to the object if it is a rigid body without deformation, and the value does not depend on the vertical load N (μ = constant). However, as shown in FIG. 4C, in the elastic body such as the operator's finger F, the contact portion is deformed by the operation load W, so that the true contact area varies according to the deformation, and the friction coefficient. It is also known that μ also changes (μ1 = variation).

Therefore, as shown in FIG. 4D, the frictional force Fr between the operator's finger F and the operation surface 111 in the input device 100 includes an operation load W that varies according to the operation state of the operator, and a corresponding force. It is calculated by multiplying by the coefficient of friction μ1 that changes.

Hereinafter, the control contents executed by the control unit 140 will be described with reference to the flowchart shown in FIG.

First, the control unit 140 determines whether or not the operator's finger F is touching (contacting) the operation surface 111 based on a signal obtained from the touch sensor 112 in step S100 illustrated in FIG. If the determination is NO, the control unit 140 repeats Step S100. If the determination is affirmative, the control unit 140 proceeds to Step S110. 6 and 7, when the operator's finger F is touched on the operation surface 111, the display of the pointer 52b on the display screen 52 becomes valid, and the operator's finger on the operation surface 111 is displayed. A pointer 52b is displayed on the display screen 52 so as to correspond to the position of F.

In step S <b> 110, the control unit 140 acquires the operation load W of the finger F touching the operation surface 111 from the load sensor 130.

Next, in step S120, the control unit 140 determines whether or not the operator's finger F is selecting any one of the operation buttons 52a among the various operation buttons. The control unit 140 determines that the position of the operator's finger F is selected (Yes) when the position of the operator's finger F overlaps any of the operation buttons 52a, and the position of the operator's finger F is any of the operation buttons 52a. If it is a position that does not overlap, it is determined that it is not being selected (No).

Note that when the operator's finger F is not selecting any one of the operation buttons 52a, the operator's finger F is located away from any one of the operation buttons 52a. The state where it is moving toward is shown. If the control unit 140 determines NO in step S120, the control unit 140 proceeds to step S130.

In step S130, the control unit 140 estimates the operation button 52a that is the movement destination of the finger F from the operation state of the operator's finger F. Here, the operation button 52a closest to the current position of the finger F is estimated as the operation button 52a to be moved.

Then, the control unit 140 calculates a vector from the position of the pointer 52b on the display screen 52 (the position of the operator's finger F on the operation surface 111) to the position of the operation button 52a to which the operator's finger F is to move. calculate. In calculating the vector, the control unit 140 determines the distance (vector length) between the position of the pointer 52b and the position of the operation button 52a and the direction (vector direction) from the position of the pointer 52b toward the position of the operation button 52a. calculate.

Next, in step S140, the control unit 140 sets a standard vibration pattern for generating a pulling force in the calculated vector direction, and partially changes the standard vibration pattern according to the acquired operation load W. .

That is, first, the control unit 140 sets a vibration that reciprocates in the calculated vector direction (direction of the movement destination of the operating body) as a standard vibration pattern. For example, if the vector is in any one of the two xy directions (for example, the y-axis direction), the control unit 140 sets vibration along the axial direction as shown in FIG. . Further, when the vector is inclined with respect to the two axes, the control unit 140 sets the vibration in the oblique direction obtained by the synthesis in the two-axis directions as shown in FIG.

The control unit 140 sets the vibration speed or acceleration to be different between the reciprocating vibration forward path side and the return path side. Here, the forward side is the direction in which the operator's finger F is about to move, and the controller 140 has a speed or acceleration on the forward side that is higher than the backward side as shown by the solid line in the waveform example in FIG. Set the standard vibration pattern to be smaller. In FIG. 8 and FIG. 9, acceleration is shown as a vibration control target as an example of vibration speed or acceleration.

Furthermore, the control unit 140 sets a changed vibration pattern in which the magnitude of the speed or acceleration in the standard vibration pattern is changed according to the operation load W. The changed vibration pattern is indicated by a broken line in the waveform example in FIG.

The setting procedure of the changed vibration pattern is as follows. That is, when the operation load W is larger than a predetermined range of loads, the control unit 140 sets the speed or acceleration on the return path side to be large while leaving the forward path side in the standard vibration pattern as it is (upper stage in FIG. 8). ). Further, when the operation load W is smaller than the load in the specified range, the control unit 140 sets the speed or acceleration on the forward path side to be small while keeping the return path side in the standard vibration pattern as it is (lower stage in FIG. 8). If the operation load W is within a specified range, the standard vibration pattern is set to be used as it is without being changed (middle stage in FIG. 8).

As shown in FIG. 9, when setting or changing the speed or acceleration magnitude of the vibration on the forward path side or the return path side, the vibration amplitude is changed, the vibration frequency is changed, or the forward path side is changed. This can be dealt with by changing the duty ratio (A / (A + B)) in the waveform on the return path side.

Specifically, the vibration speed or acceleration can be increased by increasing the vibration amplitude, and the vibration speed or acceleration can be decreased by decreasing the vibration amplitude. Further, by increasing the vibration frequency, the vibration speed or acceleration can be increased, and by reducing the vibration frequency, the vibration speed or acceleration can be decreased. Furthermore, by reducing the duty ratio, the speed or acceleration on the return path side can be increased, and the speed or acceleration on the forward path side can be decreased. Conversely, by increasing the duty ratio, the speed or acceleration on the return path side can be reduced, and the speed or acceleration on the forward path side can be increased.

In step S150, control unit 140 causes drive unit 120 to have the vibration pattern (standard vibration pattern or changed vibration pattern) set according to the vector direction and operation load W as described above. The operation surface 111 is vibrated by driving. Note that the addition of vibration to the operation surface 111 based on the standard vibration pattern corresponds to the vibration control of the present disclosure. After step S150, the control unit 140 repeats steps S100 to S150 until the operation button 52a desired by the operator is selected by the operator's finger F (Yes in step S120).

If the affirmative determination is made in step S120 while repeating the above steps S100 to S150, the control unit 140 determines whether or not there has been a pressing operation on the operation button 52a in step S160. The push-in operation is an operation that indicates selection of the operation button 52a by the operator, and is performed when the operator pushes a finger on the operation surface 111 at a position corresponding to the operation button 52a. If an affirmative determination is made in step S160, the control unit 140 performs a push determination process in step S170. That is, an instruction corresponding to the operation button 52a is given to the navigation device 50. If a negative determination is made in step S160, the process returns to step S100.

In step S180, the control unit 140 generates a vibration (click feeling vibration) for giving a click feeling to the operator's finger F. Here, unlike the pulling-in vibration in steps S140 and S150 by using the driving unit 120, the driving unit 120 is vibrated once so that the operator can recognize that the pushing operation has been performed. To do. As described above, in the present embodiment, when the operation load W is within a specified range, the control unit 140 causes the control unit 140 on the operation surface 111 to move toward the destination of the operator's finger F (operation button 52a). Vibrations with different speeds or accelerations are generated on the return path side (vibration control using a standard vibration pattern). In a direction where the speed or acceleration of vibration is large, slip occurs between the operation surface 111 and the finger F, and due to the law of inertia, the operator's finger F hardly follows the movement of the operation surface 111. The shape is left behind in the position. On the contrary, in a direction where the vibration speed or acceleration is small, the frictional force Fr between the operation surface 111 and the finger F acts, and the motion of the operation surface 111 is applied to the finger F of the operator according to the law of inertia. At the same time, the moving force becomes easy to work, and the operator's finger F is generally drawn in a direction in which the vibration speed or acceleration is small.

Therefore, by executing the vibration control as described above, an effective pulling force can be obtained on the side where the vibration speed or acceleration is small in a small movable region. Therefore, when the movement amount of the operating body is large as in the prior art, the problem that the movement amount of the contact surface must be increased accordingly can be eliminated.

Further, in the present embodiment, the forward path side of the vibration is set as the direction of the movement destination, and the control unit 140 makes the speed or acceleration of the forward path side smaller than that of the return path side with respect to the drive unit 120. Thereby, it is possible to generate a retraction force that causes the operator's finger F approaching the operation button 52a to be retracted by the operation button 52a.

Furthermore, when the operation load W is larger than the load in the specified range, the control unit 140 increases the speed or acceleration of the return path vibration relative to the standard vibration pattern.

As the operation load W increases, the frictional force Fr also increases, and the finger F becomes less likely to slip on the operation surface 111, and the finger F repeatedly moves without slipping in both the forward and backward directions of vibration. The position of the finger F does not change (the pulling force cannot be obtained).

Therefore, when the operation load W is large, the speed or acceleration on the return path side is made larger than the standard vibration pattern (the upper stage in FIG. 8) so that more slippage between the operation surface 111 and the finger F occurs. be able to. Accordingly, it is possible to make it difficult for the finger F to follow the movement of the operation surface 111 on the return path side of the vibration, and even when the operation load W is large, the finger F is prevented from moving toward the return path side (the direction opposite to the retracting direction). can do.

On the contrary, when the operation load W is smaller than the load in the specified range, the control unit 140 reduces the speed or acceleration of the vibration on the forward path side with respect to the standard vibration pattern.

When the operation load W is reduced, the frictional force Fr is also reduced, so that the finger F is easily slipped on the operation surface 111 and is not easily moved with respect to the movement of the operation surface 111 on the forward path side of vibration (the pull-in force is reduced). ). Therefore, the finger F becomes slippery in both directions of the forward path and the return path of the vibration, and as a result, the finger F does not move (a pulling force cannot be obtained).

Therefore, when the operation load W is small, the speed or acceleration on the forward path side is made smaller than the standard vibration pattern (lower stage in FIG. 8), and slippage between the operation surface 111 and the finger F can be made difficult to occur. Therefore, the finger F can easily follow the movement of the operation surface 111 on the forward path side of vibration, and the finger can easily move to the forward path side (retraction side) even when the operation load W is small.

From the above, when the vibration control is executed, the control unit 140 changes the vibration speed or the magnitude of the acceleration on the forward path side or the return path side according to the operation load W, thereby accompanying the operation load W. Thus, it becomes possible to suppress a change in the pulling force, and a stable pulling force can be obtained. With the stable pulling force, the pulling tactile sensation is maintained equally regardless of the operation load W.

In addition, when the control unit 140 acquires a pressing operation on the operation surface 111 as an operation state from the touch sensor 112 (step S160), the control unit 140 makes the operator's finger F different from the pulling vibration for the driving unit 120. A click feeling vibration that gives a click feeling is generated (step S180). Accordingly, the driver 120 can be used to make the operator recognize the selection determination operation.

(Second Embodiment)
A second embodiment is shown in FIG. In the second embodiment, the setting position of the load sensor 130A is changed with respect to the first embodiment. In the touch sensor 112 of the operation unit 110, the elastic body 131 is not interposed between the electrodes 112a and 112b, and the coordinate position of the finger F is detected.

The load sensors 130A are provided in a plurality (for example, four) with respect to the load sensor 130 of the first embodiment, and are arranged at the bottom (for example, each square corner) of the housing 113. A capacitance (capacitance value) is generated in each load sensor 130A according to the coordinate position of the finger F with respect to the operation surface 111 and the operation load W, and the total operation is performed depending on the magnitude of each capacitance value. The load W is detected. The load sensor 130A is not limited to a plurality of load sensors as described above, and may be a single load sensor 130A.

This embodiment is different from the first embodiment in the form of the load sensor 130A, has the same basic function, and can obtain the same effects as the first embodiment.

As for the load sensor, a resistance type load sensor whose resistance value changes according to the operation load W is used instead of the capacitance type as in the first embodiment and the present embodiment. You may do it.

(Other embodiments)
In each of the above-described embodiments, the controller 140 estimates the operation button 52a that is the movement destination of the finger F from the operation state of the operator's finger F. The movement button 52a is estimated as the movement destination. However, the present invention is not limited to this, and for example, the operation button 52a frequently used by the operator in the past predetermined period may be estimated as the operation button 52a that is the movement destination. Alternatively, the operation button 52a ahead of the operator's finger F to be moved may be estimated as the operation button 52a to be moved.

In each of the above-described embodiments, the pulling force is generated on the operation button 52a side with respect to the operator's finger F approaching the operation button 52a. When trying to leave the vicinity of the button 52a, a pulling force toward the operation button 52a may be generated. In this case, vibration is generated in the direction in which the operator's finger F moves away from the operation button 52a, the direction in which the operator's finger F moves away is the forward path side, and the opposite direction is the return path side. Should be made smaller than the outgoing path side.

In each of the above embodiments, the operation unit 110 is based on a so-called touch pad type. However, the operation unit 110 is not limited to this, and is a so-called touch panel type that is visible on the operation surface 111 through the display screen 52 of the liquid crystal display 51. It can also be applied to things.

Further, in each of the above-described embodiments, when a pressing operation is performed in steps S160 to S180 described with reference to FIG. 5, a click feeling vibration that gives a click feeling is generated. However, the present disclosure basically generates a pulling force by changing the vibration speed or acceleration on the forward path side and the return path side, and changes the speed or acceleration according to the operation load W. By doing so, the pulling force is stabilized, and steps S160 to S180 may be eliminated.

In each of the above embodiments, the operation body is described as the operator's finger F. However, the operation body is not limited to this, and may be a stick imitating a pen or the like.

In each of the above embodiments, the navigation device 50 is used as an input control target (predetermined device) by the input device 100. However, the present invention is not limited to this, and the vehicle air conditioner, the vehicle audio device, or the like. It can be applied to other devices.

Here, the flowchart or the process of the flowchart described in this application is configured by a plurality of sections (or referred to as steps), and each section is expressed as S100, for example. Further, each section can be divided into a plurality of subsections, while a plurality of sections can be combined into one section. Further, each section configured in this manner can be referred to as a device, module, or means.

Although the present disclosure has been described based on the embodiments, it is understood that the present disclosure is not limited to the embodiments and structures. The present disclosure includes various modifications and modifications within the equivalent range. In addition, various combinations and forms, as well as other combinations and forms including only one element, more or less, are within the scope and spirit of the present disclosure.

Claims (4)

An operation detection unit (112) for detecting an operation state of the operation body (F) with respect to the operation surface (111) on the operation side;
A control unit (140) for performing input to a predetermined device (50) according to the operation state detected by the operation detection unit;
A drive unit (120) that vibrates the operation surface in a direction in which the operation surface expands;
A load detection unit (130) for detecting an operation load (W) of the operating body with respect to the operation surface;
When the operation body is in contact with the operation surface, the control unit is in the direction of the movement destination (52a) of the operation body estimated from the operation state by the operation detection unit with respect to the drive unit. Performing vibration control for generating reciprocating vibration on the operation surface and controlling the vibration speed or acceleration to be different between the forward path side and the return path side of the reciprocating vibration;
The control unit is an input device that changes the speed of vibration or the magnitude of acceleration on the forward path side or the return path side in accordance with the operation load when the vibration control is executed. The control unit is configured to reduce the speed or acceleration of the vibration on the forward path side relative to the drive path side when performing the vibration control,
When the operation load is larger than a predetermined range of load, the speed or acceleration of the vibration on the return path set in the vibration control is changed to increase,
The input device according to claim 1, wherein when the operation load is smaller than the load in the specified range, the speed or acceleration of the vibration on the forward path side set in the vibration control is changed to be small. The control unit determines the vibration speed or acceleration on the forward path side or the return path side with respect to the drive unit, the vibration amplitude, the vibration frequency, or the duty ratio of the vibration on the forward path side and the return path side. The input device according to claim 1, wherein the input device is changed to a base. When the control unit acquires a push operation on the operation surface as the operation state from the operation detection unit, the control unit gives a click feeling to the driving unit, unlike the vibration, in addition to the vibration. The input device according to any one of claims 1 to 3, wherein vibration is generated.

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