Vehicle input device and vehicle input method

Abstract

A vehicular input device 100 comprises: a button 3 that is disposed in the interior of a vehicle; an electrostatic sensor 10 that is disposed below the back surface of the button 3; a detection unit that detects vibrations of the vehicle; and an operation recognition device 40 that recognizes, on the basis of output from the electrostatic sensor 10, a touch operation performed on the front surface of the button 3. The operation recognition device 40 increases sensitivity for the touch operation, if the vibration width and / or vibration frequency of the vibrations detected by the detection unit is at least a prescribed value.

Description

[Technical Field]

[0001] The present invention relates to a vehicle input device and a vehicle input method. [Background technology]

[0002] Vehicle input devices that are attached to a vehicle and used have been known. For example, a vehicle input device described in Patent Document 1 includes an interior panel, which is an opaque plate-like member that provides part of the vehicle's interior, and a fixing unit for fixing the interior panel to the vehicle. The interior panel includes an operation area portion on which a plurality of designs indicating control operations that can be performed by an occupant are arranged, and a non-operation area portion that is the portion other than the operation area portion. A press sensor is arranged on the back side of the operation area portion to detect a user's press operation on a switch portion, which is the portion on the surface of the operation area portion on which the designs are arranged, and a vibration device is arranged to vibrate the operation area portion in a direction perpendicular to the operation surface, which is a direction perpendicular to the surface of the operation area portion. The vehicle input device is also provided with a control unit that identifies the operation performed by the occupant based on the detection result of the press sensor and vibrates the vibration device. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2020-003792 Summary of the Invention [Problem to be solved by the invention]

[0004] In the above-described vehicle input device, when the operation area vibrates due to vibrations of the vehicle, it becomes difficult for the user to touch the operation area, making it difficult to recognize the user's operation.

[0005] An object of the present invention is to provide a vehicle input device and a vehicle input method that make it easy to recognize button operations when the vehicle is vibrating. [Means for solving the problem]

[0006] The present invention solves the above problem by recognizing touch operations on the surface of a button based on the output of an electrostatic sensor, detecting vehicle vibrations, and increasing the sensitivity of the touch operation if the amplitude and / or vibration frequency of the detected vehicle vibrations is equal to or greater than a predetermined value. [Effects of the Invention]

[0007] The present invention can make it easier to recognize a touch operation when the vehicle is vibrating. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a block diagram of a vehicle input device according to an embodiment of the present invention. [Figure 2] FIG. 2 is a front view of the dashboard. [Figure 3] FIG. 3 is a cross-sectional view of the board, the electrostatic sensor, the vibration sensor, and the vibration element. [Figure 4] FIG. 4 is an enlarged plan view of a portion of the board shown in FIG. [Figure 5] FIG. 5 is a flowchart showing a control flow of the operation recognition device shown in FIG. [Figure 6] FIG. 6 is an enlarged plan view of a portion of the board. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, an embodiment of a vehicle input device and a vehicle input method according to the present invention will be described with reference to the drawings. Fig. 1 is a block diagram of a vehicle input device 100 according to an embodiment of the present invention. The vehicle input device includes an electrostatic sensor 10, a vibration sensor 20, a vibration element 30, and an operation recognition device 40. The vehicle input device 100 is provided in a vehicle, and when a user touches a button provided in the vehicle interior, the vehicle input device 100 detects the input to the button and transmits an operation command corresponding to the touch operation to an ECU.

[0010] The vehicle input device 100 is installed in the vehicle cabin. As shown in FIG. 2 , an instrument panel located at the front of the vehicle cabin is provided with a touch panel display 1 for operating in-vehicle systems such as a navigation system and an audio system, and a board 2 is provided below the display 1. The board 2 also has a plurality of buttons 3 for receiving input via touch operation. The plurality of buttons 3 are buttons for operating the air conditioning system, such as an on / off button for the automatic air conditioner, up / down buttons for setting the temperature, plus / minus buttons for setting the air volume, an on / off button for the defroster, and an on / off button for the defogger. When a main switch 4 installed on the board 2 is turned on, an icon included in the button 3 lights up, making the icon easier for the user to see. The main switch 4 is a switch for controlling the on / off of the power supply for the entire vehicle and corresponds to a power switch or ignition switch. The main switch 4 is a mechanical switch. On the other hand, the button 3 is not a mechanical switch but is integrated with the board 2 and is a capacitive touch switch (contactless switch). For example, after turning on the main switch 4, if the user wants to operate the air conditioning system in automatic air conditioning mode, the user only needs to touch the button with the "AUTO" icon with his / her finger. A steering wheel at the front of the vehicle is provided with a steering switch 5. In the following description, an example in which the vehicle input device 100 is applied to the button 3 will be described, but the vehicle input device 100 may also be applied to the steering switch 5. The vehicle input device 100 is not limited to buttons for operating the air conditioning system, and may also be applied to buttons for operating systems such as a navigation system or an audio system.

[0011] The electrostatic sensor 10 is provided below the back surface of the button 3 and detects a user's touch operation on the button 3. When the user's finger touches the button 3 or approaches the button 3, a current flows between the finger and an electrode included in the electrostatic sensor 10, causing a change in capacitance. The electrostatic sensor 10 detects this change in capacitance and outputs a detected value to the operation recognition device 40.

[0012] The vibration sensor 20 detects vehicle vibrations. The vibration sensor 20 is provided on the body (vehicle body). The vibration sensor 20 outputs a detected value to the operation recognition device 40. The vibration sensor 20 is, for example, a G sensor (acceleration sensor) or a gyro sensor. The vibration sensor 20 may be a gyro sensor included in a navigation system, or a sensor used to control a chassis system, an airbag, or the like. Vehicle vibrations may also be detected from, for example, engine speed, engine on / off, steering angle, or map information. For example, the operation recognition device 40 (described later) has a detection unit that detects vehicle vibrations. The detection unit determines that the vehicle is vibrating when any one of the following conditions is met: the engine speed is equal to or greater than a predetermined rotation speed threshold, the engine is on, the steering angle is equal to or greater than a steering threshold, and the map information indicates that the vehicle is traveling on a road prone to vibration. The engine is not limited to a driving engine for the vehicle, but may also be a power generating engine that supplies power to an on-board battery. Furthermore, roads on which the vehicle is likely to vibrate include unpaved roads and roads with small curves (large curvatures).

[0013] The vibration element 30 is provided near the button 3, and vibrates when the operation recognition device 40 recognizes a touch operation. The vibration element 30 has a piezoelectric element or the like. The user can know through the vibration of the vibration element 30 that the touch operation has been recognized correctly.

[0014] The structure surrounding the electrostatic sensor 10 will be described with reference to FIG. 3. FIG. 3 is a cross-sectional view of the board 2, the electrostatic sensor 10, the vibration sensor 20, and the vibration element 30. The electrostatic sensor 10 has an electrode 11 and a dielectric 12. The surface of the electrostatic sensor 10 is covered with the board 2. The plurality of electrodes 11 are provided on the bottom surface of the dielectric 12 in correspondence with the plurality of buttons 3. The plurality of buttons 3 are embedded in the board 2 on the surface of the dielectric 12. That is, the plurality of buttons 3 and the plurality of electrodes 11 face each other with the dielectric 12 interposed therebetween. Furthermore, the vibration element 30 is provided on the back surface of the electrode 11.

[0015] The operation recognition device 40 recognizes a touch operation on the surface of the button 3 based on the output of the electrostatic sensor 10. Furthermore, the operation recognition device 40 increases the sensitivity of the touch operation when the amplitude and / or vibration frequency of the vibration detected by the vibration sensor 20 is equal to or greater than a predetermined value. The operation recognition device 40 is a controller (processor) and has an operation recognition unit 41 and a sensitivity control unit 42 as functional blocks for performing the functions of the operation recognition device 40. The operation recognition unit 41 recognizes a touch operation on the button 3 based on the output value of the electrostatic sensor 10. Specifically, the operation recognition unit 41 acquires the capacitance of the electrostatic sensor 10 from the output of the electrostatic sensor 10. When the user performs a touch operation on the button 3, the capacitance of the electrostatic sensor 10 increases. The operation recognition unit 41 compares the acquired capacitance with a predetermined determination threshold, and determines that a touch operation has been performed if the capacitance is equal to or greater than the determination threshold, and determines that a touch operation has not been performed if the output value is less than the determination threshold. In order to avoid determining that a change in capacitance in a short period of time, such as noise, is present as a touch operation, the operation recognition unit 41 may determine that a touch operation has occurred when the capacitance for a predetermined period of time is equal to or greater than a determination threshold. In the case where the capacitive sensor 10 is configured to reduce the capacitance during a touch operation, the operation recognition unit 41 may determine that a touch operation has occurred when the capacitance is less than the determination threshold. In addition, the operation recognition unit 41 may determine whether a touch operation has occurred by comparing the amount of change in capacitance with a change amount threshold.

[0016] If it is determined that a touch operation has been performed, the operation recognition unit 41 outputs an operation command for the button that has been recognized as the touch operation to the ECU that controls the air conditioning. For example, if the ECU receives an operation command from the operation recognition unit 41 indicating that the defroster operation button 3 has been operated while the defroster is off, the ECU switches the defroster from off to on.

[0017] The sensitivity control unit 42 sets the sensitivity of the touch operation in accordance with the vibration of the vehicle. The vibration sensor 20 has an amplifier circuit for increasing the output value of the electrostatic sensor 10 in response to the amount of change in capacitance during a touch operation. The sensitivity control unit 42 sets the gain of the amplifier circuit included in the vibration sensor 20. The sensitivity control unit 42 increases the sensitivity of the touch operation when the amplitude and / or vibration frequency of the vibration detected by the vibration sensor 20 is equal to or greater than a predetermined value. Specifically, the sensitivity control unit 42 sends a control command to increase the gain to the amplifier circuit of the vibration sensor 20. When the gain increases, the vibration sensor 20 increases the output to the operation recognition device 40 in response to the amount of change in the detected capacitance.

[0018] However, when the vehicle is vibrating, the board 2 on which the button 3 is located also vibrates, making it difficult for the user to touch the button. For example, while the vehicle is running, a user inside the vehicle may intend to press a defroster icon, but the defroster button 3 may vibrate, resulting in the user failing to touch the defroster button 3 or insufficient finger contact with the button 3, resulting in a small change in capacitance and resulting in an erroneous operation. The possibility of such an erroneous operation of the button 3 increases as the amplitude and / or vibration frequency of the vehicle vibration increases. Therefore, in this embodiment, the vibration sensor 20 is used to detect the vibration of the vehicle, and the sensitivity of the touch operation is increased when the amplitude and / or vibration frequency of the vibration is equal to or greater than a predetermined value.

[0019] The operation recognition range and touch sensitivity of the button 3 will be described with reference to FIG. 4 . FIG. 4 is an enlarged plan view of a portion of the board 2. The operation recognition range 50 indicates the area on the surface of the button 3 where a touch operation can be effectively recognized, and is determined for each of the multiple buttons 3. The operation recognition range 50 is defined as a closed space on the surface of the button 3, and as shown in FIG. 4 , is a predetermined range centered on the icon of the button 3. The operation recognition range 50 has a central portion 51 of the button 3 and a peripheral portion 52 surrounding the central portion 51. The central portion 51 corresponds to the icon. The operation recognition device 40 can set a gain according to the position within the operation recognition range 50. For example, the electrodes 11 are arranged in an array in the vertical and horizontal directions along a plane, and the electrostatic sensor 10 is configured to detect a change in capacitance according to the position of a touch operation on the button 3. The amplifier circuit of the electrostatic sensor 10 is configured to set a gain according to the coordinates of the electrodes 11. Note that the amplifier circuit does not necessarily need to change the gain for each coordinate of the electrodes 11; the gain may be changed for each area within the operation recognition range 50. 4, the amplifier circuit of the electrostatic sensor 10 is configured to be able to set different gains between a central portion 51 and a peripheral portion 52. The operation recognition unit 41 determines that a touch operation has been performed when it detects a change in capacitance in a portion of the coordinates of the electrodes 11 arranged in an array that corresponds to the operation recognition range. The sensitivity control unit 42 controls the sensitivity of the touch operation in the operation recognition range 50 in accordance with the magnitude of the amplitude and / or vibration frequency of the vibration detected by the vibration sensor 20.

[0020] The sensitivity control unit 42 is set with a sensitivity control threshold for determining whether to increase the sensitivity. The sensitivity control threshold is defined by a vibration amplitude threshold and / or a vibration frequency threshold. For example, when the amplitude of the detected vehicle vibration is equal to or greater than the amplitude threshold, the sensitivity control unit 42 increases the sensitivity of the touch operation in the operation recognition range compared to the initial setting sensitivity (hereinafter also referred to as the initial sensitivity). When the vibration frequency of the detected vehicle vibration is equal to or greater than the frequency threshold, the sensitivity control unit 42 increases the sensitivity of the touch operation in the operation recognition range compared to the initial sensitivity. Furthermore, when the amplitude of the detected vehicle vibration is less than the amplitude threshold, the sensitivity control unit 42 sets the sensitivity of the touch operation to the initial sensitivity. When the vibration frequency of the detected vehicle vibration is less than the frequency threshold, the sensitivity control unit 42 sets the sensitivity of the touch operation to the initial sensitivity. Note that the sensitivity control unit 42 may increase the sensitivity of the touch operation by combining a vibration amplitude condition and a vibration frequency condition.

[0021] The sensitivity control unit 42 may increase the sensitivity of the touch operation as the amplitude of the detected vehicle vibration increases. Similarly, with regard to the vibration frequency, the sensitivity control unit 42 may increase the feeling of the touch operation as the detected vibration frequency increases. When increasing the sensitivity of the touch operation as the amplitude and / or vibration frequency of the detected vibration increases, the sensitivity control unit 42 may increase the feeling of the touch operation stepwise or continuously as the amplitude and / or vibration frequency of the detected vibration increases.

[0022] Furthermore, the sensitivity control unit 42 may increase the sensitivity of the touch operation according to the frequency of the detected vibration and the resonant frequency of the vehicle. The resonant frequency of the vehicle corresponds to the resonant frequency (natural frequency) of the vehicle body, and the closer the vibration frequency of the vehicle is to the resonant frequency, the greater the vibration of the vehicle. A predetermined frequency band including the resonant frequency of the vehicle is set in advance in the sensitivity control unit 42. The predetermined frequency band is indicated by a range from a lower limit frequency to an upper limit frequency. Then, when the frequency of the detected vehicle vibration is within the predetermined frequency band, the sensitivity control unit 42 increases the sensitivity of the touch operation above the initial sensitivity. On the other hand, when the frequency of the detected vehicle vibration is outside the predetermined frequency band, the sensitivity control unit 42 sets the sensitivity of the touch operation to the initial sensitivity.

[0023] Furthermore, the sensitivity control unit 42 may narrow the operation recognition range as the vibration frequency is higher than the upper limit frequency of the frequency band or as the vibration frequency is lower than the lower limit frequency of the frequency band. The sensitivity control unit 42 may reduce the sensitivity of the touch operation in a stepwise or continuous manner. Alternatively, the sensitivity control unit 42 may narrow the sensitivity below the initial range.

[0024] When increasing the sensitivity of touch operations, the sensitivity control unit 42 may increase the sensitivity of the entire operation recognition range 50 uniformly, or may increase the sensitivity of the central portion 51 more than the sensitivity of the peripheral portion 52. In the example of FIG. 4 , the sensitivity of the central portion 51 of the airflow "+" button 3 and the defroster button 3 is increased more than the sensitivity of the peripheral portion 52. When the vehicle is vibrating, it becomes difficult for the user to touch the buttons 3, increasing the possibility that the touch position of the button 3 may shift and the user may touch another button 3. Therefore, in this embodiment, the sensitivity of the peripheral portion 52 of the button 3 is not increased too much to prevent accidental operation of another button 3. Furthermore, the sensitivity of the central portion 51 of the button 3 increases when the vehicle is vibrating, thereby improving the operability of the button 3.

[0025] In the present embodiment, the operation recognition device 40 increases the gain so as to increase the output of the electrostatic sensor 10. However, the sensitivity to a touch operation may be set by changing the value of the judgment threshold set in the operation recognition unit 41. The operation recognition unit 41 determines that a touch operation has occurred when the capacitance acquired from the electrostatic sensor 10 is equal to or greater than the judgment threshold. For example, the sensitivity control unit 42 may lower the judgment threshold when the amplitude and / or vibration frequency of the vibration detected by the vibration sensor 20 is equal to or greater than a predetermined value. The sensitivity control unit 42 may set the judgment threshold for determining a touch operation in the central portion 51 lower than the judgment threshold for determining a touch operation in the peripheral portion 52, thereby making the sensitivity of the central portion 51 higher than that of the peripheral portion 52.

[0026] Next, the control flow of the operation recognition device 40 will be described. Fig. 5 is a flowchart showing the control flow of the operation recognition device 40. The control flow of Fig. 5 is executed when the main switch 4 is in the on state. In step S1, the sensitivity control unit 42 acquires the detection value of the vibration sensor 20. In step S2, the sensitivity control unit 42 determines whether the amplitude of the vibration detected by the vibration sensor 20 is equal to or greater than an amplitude threshold. In step S3, if the amplitude of the vibration is equal to or greater than the amplitude threshold, the sensitivity control unit 42 increases the sensitivity of the touch operation.

[0027] In step S4, the operation recognition unit 41 acquires the detection value of the electrostatic sensor 10 within the operation recognition range. That is, the operation recognition unit 41 acquires the detection value of the capacitance of the electrostatic sensor 10, which changes within the operation recognition range. In step S5, the operation recognition unit 41 determines whether the detection value (electrostatic capacitance) of the electrostatic sensor 10 is equal to or greater than the determination threshold. If the detection value (electrostatic capacitance) of the electrostatic sensor 10 is equal to or greater than the determination threshold, in step S6, the operation recognition unit 41 recognizes that a touch operation has been performed, and the control flow ends. If the detection value (electrostatic capacitance) of the electrostatic sensor 10 is less than the determination threshold, the operation recognition unit 41 does not recognize that a touch operation has been performed, and the control flow ends. That is, the operation recognition device 40 recognizes a touch operation within a predetermined operation recognition range on the surface of the button 3 based on the output of the electrostatic sensor by executing the control flow of steps S4 to S6.

[0028] As described above, in this embodiment, the vehicle input device 100 includes the electrostatic sensor 10, the vibration sensor 20, and the operation recognition device 40 that recognizes touch operations within a predetermined operation recognition range on the surface of the button 3. The operation recognition device 40 increases the sensitivity of the touch operation when the amplitude and / or frequency of the vibration detected by the vibration sensor 20 is equal to or greater than a predetermined value. As a result, when the amplitude and / or frequency of the vibration is large and there is a high possibility that the user will not be able to accurately perform a touch operation on the button 3, the sensitivity of the touch operation increases, improving the operability of the button 3. As a result, it is possible to make it easier to recognize button operations when the vehicle is vibrating.

[0029] In this embodiment, the operation recognition device 40 increases the sensitivity of the touch operation as the amplitude of the vibration increases, thereby making it easier to recognize a button operation when the vehicle is vibrating.

[0030] In this embodiment, the operation recognition device 40 increases the area of ​​sensitivity to touch operations when the vibration frequency is within a predetermined frequency band that includes the vehicle's resonance frequency, thereby making it easier to recognize button operations when the vehicle is vibrating.

[0031] In this embodiment, the operation recognition device 40 reduces the sensitivity of touch operations as the vibration frequency increases above the upper limit frequency of a predetermined frequency band or decreases below the lower limit frequency of the predetermined frequency band, thereby making it easier to recognize button operations when the vehicle is vibrating.

[0032] In this embodiment, the operation recognition device 40 sets the sensitivity of touch operations within the operation recognition range to be greater in the central part 51 of the button than in the peripheral part 52 of the button. This makes it easier to recognize button operations when the vehicle vibrates. It also prevents erroneous operations of other buttons 3.

[0033] In the vehicle input device 100 according to the modified example of this embodiment, the sensitivity of the touch operation may be increased as the vibration frequency approaches the vehicle's resonance frequency. This makes it possible to easily recognize button operations even when vibrations having a frequency close to the resonance frequency occur in the vehicle body.

[0034] In addition, in the vehicle input device 100 according to a modified example of this embodiment, the multiple buttons 3 include a first button and a second button, and the periphery of the first button includes an adjacent portion 53 adjacent to the second button and a non-adjacent portion 54 not adjacent to any other buttons 3. The operation recognition device 40 reduces the sensitivity of the touch operation of the adjacent portion 53 within the periphery of the operation recognition range 50 compared to the non-adjacent portion 54. FIG. 6 is an enlarged plan view of a portion of the board, illustrating the adjacent portion 53 and the non-adjacent portion 54. As shown in FIG. 6, the defroster button 3 corresponding to the first button is adjacent to the airflow "+" button 3 corresponding to the second button. The periphery of the operation recognition range 50 on the defroster button 3 includes the adjacent portion 53 adjacent to the airflow "+" button 3 and the adjacent portion 54 not adjacent to any other buttons 3. Furthermore, a defroster button 3 and a "-" air volume button 3 are arranged on either side of the "+" air volume button 3, and the outer periphery of the operation recognition range 50 on the "+" air volume button 3 includes two adjacent portions 53. Note that in the example of FIG. 2, other buttons are arranged to the right of the defroster button 3, but in the example of FIG. 6, for ease of explanation, it is assumed that no buttons 3 are arranged to the right of the defroster button 3.

[0035] When the amplitude and / or frequency of the vibration detected by the vibration sensor 20 is equal to or greater than a predetermined value, the operation recognition device 40 makes the sensitivity of the touch operation of the adjacent portion 53 lower than the sensitivity of the touch operation of the non-adjacent portion 54. The sensitivity of the portion around the defroster button 3 adjacent to the air volume "+" button is increased. The sensitivity of the portion around the air volume "+" button 3 adjacent to the defroster button 3 and the sensitivity of the portion adjacent to the air volume "+" button are both increased. This prevents accidental operation of other buttons 3.

[0036] In the vehicle input device 100 according to the modified example of this embodiment, the operation recognition device 40 may acquire vehicle speed information and set the sensitivity of a touch operation higher when the vehicle speed is high than when the vehicle speed is low. The operation recognition device 40 acquires vehicle speed information from a vehicle speed sensor provided in the vehicle. The operation recognition device 40 may also acquire the legal speed limit of the road on which the vehicle is currently traveling as vehicle speed information from map information and current position information of the vehicle measured by GPS. The operation recognition device 40 sets the sensitivity of the touch operation to the first sensitivity when the amplitude and / or vibration frequency of the vibration detected by the vibration sensor 20 are equal to or greater than a predetermined value and the current vehicle speed of the vehicle is equal to or greater than a predetermined vehicle speed threshold. The operation recognition device 40 sets the sensitivity of the touch operation to the second sensitivity when the amplitude and / or vibration frequency of the vibration detected by the vibration sensor 20 are equal to or greater than a predetermined value and the current vehicle speed of the vehicle is less than the predetermined vehicle speed threshold. The second sensitivity is higher than the initial sensitivity, and the first sensitivity is higher than the second sensitivity. When the vehicle speed is high, the driver is under a heavy driving load, and there is a high possibility of erroneous operation of Button 3. Therefore, the operability of Button 3 can be improved by making the sensitivity higher when the vehicle speed is high than when the vehicle speed is low.

[0037] The vibration sensor 20 in this embodiment corresponds to the "detection unit" of the present invention. That is, the detection unit of the present invention may include the vibration sensor 20, or may detect vibrations based on at least one of the engine speed, engine on / off, steering angle, and map information.

[0038] It should be noted that the above-described embodiments have been described to facilitate understanding of the present invention, and are not intended to limit the present invention. Therefore, the elements disclosed in the above embodiments are intended to include all design modifications and equivalents that fall within the technical scope of the present invention. [Explanation of symbols]

[0039] 1 Display 2 Boards 3 Buttons 4 Main switch 5 Steering switch 10 Electrostatic Sensor 11 electrodes 12 Dielectrics 20 Vibration Sensor 30 vibration elements 40 Operation recognition device 41 Operation recognition section 42 Sensitivity control section 50 Operation recognition range 51 Central part 52 Periphery 53 Adjacent area 54 Non-adjacent area 100 Vehicle input device

Claims

1. a button provided in the interior of the vehicle; an electrostatic sensor provided under the rear surface of the button; a detection unit that detects vibrations of the vehicle; an operation recognition device that recognizes a touch operation within a predetermined operation recognition range on the surface of the button based on an output of the electrostatic sensor; The button is positioned adjacent to another button; The operation recognition device When the amplitude and / or frequency of the vibration detected by the detection unit is equal to or greater than a predetermined value, the sensitivity of the touch operation in the operation recognition range is increased in the center of the button compared to the peripheral area.

2. 2. The vehicle input device according to claim 1, The operation recognition device is an input device for a vehicle that increases the sensitivity as the amplitude increases.

3. 3. The vehicle input device according to claim 1, The operation recognition device increases the sensitivity when the vibration frequency is within a predetermined frequency band including a resonance frequency of the vehicle.

4. a button provided in the interior of the vehicle; an electrostatic sensor provided under the rear surface of the button; a detection unit that detects vibrations of the vehicle; an operation recognition device that recognizes a touch operation within a predetermined operation recognition range on the surface of the button based on an output of the electrostatic sensor; The operation recognition device When the vibration frequency of the vibration detected by the detection unit is within a predetermined frequency band that includes the vehicle's resonant frequency, the sensitivity of the touch operation in the operation recognition range is increased in the center of the button compared to the periphery thereof, the higher the vibration frequency is in the upper limit frequency of the frequency band, or the lower the vibration frequency is in the lower limit frequency of the frequency band.

5. 5. The vehicle input device according to claim 1, wherein: The operation recognition device is configured to increase the sensitivity of the touch operation as the vibration frequency approaches a resonance frequency of the vehicle.

6. 3. The vehicle input device according to claim 1, The operation recognition device Recognizing a touch operation within a predetermined operation recognition range on the surface of the button based on the output of the electrostatic sensor; The vehicle input device has a touch recognition range in which the sensitivity of the touch operation is greater in a central portion than in a peripheral portion of the button.

7. a button provided in the interior of the vehicle; an electrostatic sensor provided under the rear surface of the button; a detection unit that detects vibrations of the vehicle; Equipped with an operation recognition device, the plurality of buttons include a first button and a second button; an outer periphery of the first button includes an adjacent portion adjacent to the second button and a non-adjacent portion not adjacent to any other of the buttons; The operation recognition device Recognizing a touch operation within a predetermined operation recognition range on the surface of the button based on the output of the electrostatic sensor; When the amplitude and / or vibration frequency of the vibration detected by the detection unit is equal to or greater than a predetermined value, the sensitivity of the touch operation in the adjacent area around the operation recognition range is made lower than the sensitivity of the touch operation in the non-adjacent area.

8. 8. The vehicle input device according to claim 1, wherein: The operation recognition device Acquire vehicle speed information of the vehicle; The vehicle input device has a sensitivity that is greater when the vehicle speed is high than when the vehicle speed is low.

9. 8. The vehicle input device according to claim 1, wherein: The detection unit includes a sensor mounted on the vehicle, or is a vehicle input device that detects the vibration based on at least one of engine speed, engine on / off, steering angle, and map information.

10. An input method for a vehicle, executed by a processor, for detecting a touch operation on a button provided in a vehicle interior, comprising: The processor: a touch sensor provided under the back surface of the button, which detects a touch operation within a predetermined operation recognition range on the surface of the button based on an output of the electrostatic sensor; Detecting vibrations of the vehicle; If the amplitude and / or frequency of the detected vibration is equal to or greater than a predetermined value, The vehicle input method includes increasing the sensitivity of the touch operation in the operation recognition range at a center portion of the button compared to a peripheral portion of the button.

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