WO2016079904A1 - 入力装置およびその入力方法 - Google Patents
入力装置およびその入力方法 Download PDFInfo
- Publication number
- WO2016079904A1 WO2016079904A1 PCT/JP2015/003276 JP2015003276W WO2016079904A1 WO 2016079904 A1 WO2016079904 A1 WO 2016079904A1 JP 2015003276 W JP2015003276 W JP 2015003276W WO 2016079904 A1 WO2016079904 A1 WO 2016079904A1
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- WIPO (PCT)
- Prior art keywords
- slider
- input device
- elements
- switch
- steering wheel
- Prior art date
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- 238000000034 method Methods 0.000 title claims description 46
- 238000001514 detection method Methods 0.000 claims abstract description 92
- 238000005286 illumination Methods 0.000 claims description 8
- 230000007935 neutral effect Effects 0.000 claims description 4
- 210000003811 finger Anatomy 0.000 description 78
- 238000010586 diagram Methods 0.000 description 33
- 230000004048 modification Effects 0.000 description 7
- 238000012986 modification Methods 0.000 description 7
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- 230000005057 finger movement Effects 0.000 description 3
- 239000010985 leather Substances 0.000 description 3
- 230000035807 sensation Effects 0.000 description 3
- 210000003813 thumb Anatomy 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/04—Hand wheels
- B62D1/046—Adaptations on rotatable parts of the steering wheel for accommodation of switches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
- B60K35/10—Input arrangements, i.e. from user to vehicle, associated with vehicle functions or specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
- B60K35/60—Instruments characterised by their location or relative disposition in or on vehicles
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/96—Touch switches
- H03K17/962—Capacitive touch switches
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/965—Switches controlled by moving an element forming part of the switch
- H03K17/975—Switches controlled by moving an element forming part of the switch using a capacitive movable element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
- B60K2360/141—Activation of instrument input devices by approaching fingers or pens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
- B60K2360/143—Touch sensitive instrument input devices
- B60K2360/1446—Touch switches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
- B60K2360/77—Instrument locations other than the dashboard
- B60K2360/782—Instrument locations other than the dashboard on the steering wheel
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
- H03K2217/96—Touch switches
- H03K2217/96066—Thumbwheel, potentiometer, scrollbar or slider simulation by touch switch
Definitions
- the present invention relates to an input device used in a vehicle or the like and an input method thereof.
- Input devices are used to operate vehicle functions such as in-vehicle audio. Most of the input devices are located between the driver's seat and the passenger seat, and the driver cannot operate the input device unless the driving posture is broken.
- the input device of the present invention includes an operation unit, an operation start trigger unit, and a detection circuit.
- the operation unit has a capacitive slider.
- an operation start trigger section is provided at a predetermined position of the slider.
- the operation start trigger unit is provided to start a first operation including a flick operation on the slider.
- the detection circuit detects that the operation start trigger unit has been touched, the detection of the first operation on the slider is enabled.
- the present invention is also an input method in an input device having an operation unit having a capacitive slider and an operation start trigger unit provided at a predetermined position of the slider. A) detecting whether or not the operation start trigger unit is touched; and B) detecting that the first operation on the slider is enabled when it is detected that the operation start trigger unit is touched. And have. According to the input device and the input method of the present invention, it is possible to reduce erroneous input even when the driver performs an input operation while holding the steering wheel.
- FIG. 1 is a diagram showing an example of a vehicle having an input device according to an embodiment of the present invention.
- FIG. 2 is a diagram illustrating an example of a state in which a driver sits on a seat and holds a steering wheel in a vehicle having an input device according to an embodiment of the present invention.
- FIG. 3 is a diagram showing an example of the input device according to the embodiment of the present invention.
- FIG. 4 is a block diagram showing a functional configuration of an in-vehicle device and a touch sensor mounted on a vehicle having the input device according to the embodiment of the present invention.
- FIG. 5A is a diagram showing another example of the input device according to the embodiment of the present invention.
- FIG. 5A is a diagram showing another example of the input device according to the embodiment of the present invention.
- FIG. 5B is a diagram illustrating an example of a state in which the driver grips the grip sensor of the steering wheel illustrated in FIG. 5A.
- FIG. 6A is a diagram illustrating an example of an appearance of a touch sensor of the input device according to the embodiment of the present invention.
- FIG. 6B is a diagram showing an example of the appearance of another touch sensor of the input device according to the embodiment of the present invention.
- FIG. 7 is a diagram showing an example of the configuration of the touch sensor of the input device according to the embodiment of the present invention.
- FIG. 8A is a diagram for explaining a method of detecting an operation on the slider of the input device according to the embodiment of the present invention.
- FIG. 8B is a diagram for explaining the temporal characteristics at the finger detection position of the operation on the slider of the input device according to the embodiment of the present invention.
- FIG. 9 is a diagram illustrating an example of how the driver holds the entire touch sensor in the input device according to the embodiment of the present invention.
- FIG. 10 is a diagram illustrating an example of a state where a finger is in contact with a plurality of elements of the touch sensor in the input device according to the embodiment of the present invention.
- FIG. 11 is a flowchart showing an example of an input method of the input device according to the embodiment of the present invention.
- FIG. 12A is a flowchart showing an example of processing for enabling the touch sensor of the input device according to the embodiment of the present invention.
- FIG. 12B is a flowchart showing another example of processing for enabling the touch sensor of the input device according to the embodiment of the present invention.
- FIG. 13 is a flowchart illustrating an example of switch processing for the touch sensor of the input device according to the embodiment of the present invention.
- FIG. 14 is a flowchart showing an example of slider processing for the touch sensor of the input device according to the embodiment of the present invention.
- FIG. 15 is a flowchart illustrating an example of grip processing for the touch sensor of the input device according to the embodiment of the present invention.
- FIG. 16A is a diagram showing an example of a steering wheel on which a touch sensor of the input device according to the embodiment of the present invention is arranged.
- FIG. 16A is a diagram showing an example of a steering wheel on which a touch sensor of the input device according to the embodiment of the present invention is arranged.
- FIG. 16B is a diagram illustrating the positional relationship between the touch sensor and the steering wheel illustrated in FIG. 16A in the input device according to the embodiment of the present invention.
- FIG. 17A is a diagram illustrating an example of a state in which a flick operation is performed on the touch sensor of the input device according to the embodiment of the present invention.
- FIG. 17B is a diagram illustrating an appearance of the touch sensor illustrated in FIG. 17A.
- Patent Document 1 an annular input region and an exclusive region adjacent to the input region are provided on the rim (ring portion) of the steering wheel.
- the driver touches the exclusive area the input to the input area is invalidated.
- the driver rotates the steering wheel the input area is unintentionally touched, so that erroneous input is likely.
- a matrix touch sensor is provided on a rim (annular portion) of a steering wheel. Then, a blind touch can be performed from the arc-shaped movement of the fingertip position estimated by detecting an arbitrary grip position.
- the position where the driver's fingertip is first touched in the touch sensor is the start position of input to the touch sensor. For this reason, a position not desired by the driver becomes the start position, and erroneous input is likely to occur.
- FIG. 1 is a diagram showing an example of a vehicle having an input device 100 according to an embodiment of the present invention.
- FIG. 2 is a diagram illustrating an example of a state in which a driver sits on a seat and holds a steering wheel in a vehicle having the input device 100.
- FIG. 3 is a diagram illustrating an example of the input device 100.
- FIG. 4 is a block diagram illustrating a functional configuration of an in-vehicle device and a touch sensor mounted on a vehicle having the input device 100.
- FIG. 5A is a diagram illustrating the input device 100A.
- FIG. 5B is a diagram illustrating an example of how the driver grips the steering wheel grip sensor shown in FIG. 5A of the input device 100A.
- the vehicle shown in FIG. 1 has a steering wheel 10, a touch sensor 20, an in-vehicle device 30, and a seat 40.
- the input device 100 includes a touch sensor 20 provided on a part of the steering wheel 10.
- the steering wheel 10 of the vehicle has an annular ring part (rim).
- the traveling direction of the vehicle is adjusted by rotating the steering wheel 10.
- the steering wheel 10 is held by a hand 51 and a hand 52 of the driver 50 as shown in FIG.
- the touch sensor 20 is provided on the surface of the annular portion of the steering wheel 10 as shown in FIG.
- the steering wheel 10 having an annular portion is an operation portion having a touch sensor 20 that performs an input operation.
- the touch sensor 20 is further covered with a cover 11 made of synthetic resin such as urethane or leather.
- the cover 11 may be configured to cover the entire circumference of the steering wheel 10 or may be fixed to the steering wheel 10 so as to cover only the upper surface of the touch sensor 20.
- the latter configuration is adopted.
- the touch sensor 20 is provided at a predetermined position of the annular portion at the neutral position of the steering wheel 10 shown in FIG.
- the touch sensor 20 is realized by a capacitance method.
- the touch sensor 20 may be a resistance film type or the like, and is not necessarily limited to a capacitance type.
- the capacitance method even when the cover 11 is put on the touch sensor 20, the capacitance value changes according to the distance between the touch sensor 20 and the driver's 50 finger. Therefore, the contact of the finger with the touch sensor 20 can be accurately and easily determined by comparing the capacitance value with a predetermined threshold value without being affected by the cover 11. Therefore, in the present embodiment, the touch sensor 20 is realized by a capacitance method.
- the touch sensor 20 having a characteristic that the capacitance value increases as the distance between the touch sensor 20 and the finger approaches is used. Therefore, if the finger is away from the touch sensor 20, the capacitance value is lower than the threshold value, and if the finger touches the touch sensor 20, the capacitance value exceeds the threshold value.
- the touch sensor 20 has an opposite characteristic, that is, if the finger is away from the touch sensor 20, the capacitance value exceeds the threshold value, and if the finger touches the touch sensor 20, the capacitance value is lower than the threshold value. It may be of the characteristic Since other details will be described later, a description thereof is omitted here.
- the in-vehicle device 30 is, for example, an audio device.
- the in-vehicle device 30 operates the audio device according to the input operation to the touch sensor 20.
- the in-vehicle device 30 includes an audio playback unit 31 and a control unit 32.
- the audio reproduction unit 31 selects and reproduces an audio signal under the control of the control unit 32, and causes the external speaker 33 to generate a sound.
- the audio reproducing unit 31 reproduces an audio signal selected according to the control of the control unit 32 from among a plurality of audio signals recorded on, for example, an optical disc or a semiconductor memory.
- the audio reproduction unit 31 reproduces an audio signal of a radio program station selected according to the control of the control unit 32 from among the radio program stations, for example.
- the control unit 32 controls the audio playback unit 31 in accordance with an input operation on the touch sensor 20.
- the seat 40 shown in FIG. 2 is provided for a driver 50 who drives the vehicle.
- the input device of the present embodiment is not limited to the input device 100 shown in FIGS. 1 and 3.
- the input device 100 ⁇ / b> A includes a grip sensor 60 in addition to the touch sensor 20.
- the grip sensor 60 functions as a sensor for detecting that the driver 50 has gripped the steering wheel 10.
- the grip sensor 60 is provided at a position where the driver 50 grasps the annular portion in a normal posture when the steering wheel 10 is set to the neutral position.
- the grip sensor 60 is disposed at a position different from the slider that constitutes the touch sensor 20 in the annular portion so that the output signal of the touch sensor 20 and the output signal of the grip sensor 60 do not interfere with each other. Details of the slider will be described later.
- the grip sensor 60 may be covered with a cover 11 made of a synthetic resin such as urethane or a leather over the entire circumference of the steering wheel 10 including the grip sensor 60. Alternatively, the cover 11 may cover only the surface of the grip sensor 60. Here, the latter configuration is adopted.
- the input device 100A may enable the touch sensor 20 when the grip sensor 60 detects that the steering wheel 10 is gripped by the driver 50.
- FIG. 6A is a diagram illustrating an example of the appearance of the touch sensor 20.
- FIG. 6B is a diagram illustrating an example of the appearance of another touch sensor 20A.
- FIG. 7 is a diagram illustrating an example of the configuration of the touch sensor 20A.
- the touch sensor 20 includes a slider 201 and a home position identification unit (operation start trigger unit) 202 as shown in FIG. 6A, for example.
- a switch 203 and a switch 204 may be provided as in the touch sensor 20A illustrated in FIG. 6B.
- the switch 203 and the switch 204 are not essential components, the following description will be given by taking as an example the case where the input device 100 is provided with the touch sensor 20A.
- the touch sensor 20A includes, for example, a touch sensor region 21 and a detection circuit 22 as shown in FIG.
- the detection circuit 22 is electrically connected to each of the plurality of elements, the switch 203 and the switch 204, and detects the values of these capacitances.
- the detection circuit 22 detects the capacitance values of the switches 203 and 204 of each of the plurality of elements while scanning in one direction in a time division manner. That is, the detection circuit 22 detects, in a time division manner, the capacitance value or change value of each element that occurs when the driver's finger touches each element of the slider 201. Accordingly, the detection circuit 22 can detect an operation (first operation) such as a flick operation or a slide operation on the slider 201.
- the touch sensor 20A includes only the touch sensor region 21, and the detection circuit 22 may not be included in the touch sensor 20A.
- the slider 201, the switch 203, and the switch 204 may include the function of the detection circuit 22.
- the slider 201, the switch 203, and the switch 204 are elements for detecting the capacitance value provided in the touch sensor region 21, and a detection circuit 22 may be provided separately from these.
- the slider 201 is provided in the touch sensor 20A and detects a flick operation and a slide operation (first operation). More specifically, the slider 201 is disposed at a predetermined position of the annular portion when the steering wheel 10 is in the neutral position. The slider 201 extends in a direction substantially orthogonal to the direction in which the annular portion rotates. With this arrangement, the slider 201 detects the first operation with the thumb of the driver 50. Note that the substantially orthogonal direction means that when the driver 50 performs the first operation on the slider 201, the first operation can be easily performed with the average thumb length of the driver 50. It is defined as the orthogonal direction in the range.
- the detection circuit 22 detects that the home position identification unit 202 is touched, the detection circuit 22 validates the detection of the first operation on the slider 201.
- the slider 201 has a plurality of elements that detect capacitance values. As shown in FIGS. 6A and 6B, the plurality of elements are arranged in a direction substantially orthogonal to the direction in which the annular portion of the steering wheel 10 turns. Each of the plurality of elements functions as a touch sensor.
- the plurality of elements are not limited to the “V” shape, and may be a rectangular shape or an arc shape.
- FIG. 7 shows an example in which the number of elements constituting the slider 201 is six. That is, FIG. 7 shows an example in which the slider 201 is configured by six elements including an element 201a, an element 201b, an element 201c, an element 201d, an element 201e, and an element 201f.
- the plurality of elements is not limited to six, and may be smaller or larger than six. However, when the number of elements is as small as 1 to 3, detection of a flick operation or a slide operation may be insufficient. Accordingly, the number of the plurality of elements is substantially four or more.
- the home position identification unit 202 is an example of an operation start trigger unit, and is provided at a predetermined position of the slider 201.
- the predetermined position of the slider 201 is a direction in which the driver 50 slides a finger on the slider 201, that is, a center position in the width direction of the slider 201 shown in FIG. 6A.
- the home position identifying unit 202 serves as a trigger (start point) for starting an operation (first operation) including a flick operation on the slider 201.
- the element is arranged in an area having substantially the same length in the width direction from the home position identifying unit 202. As a result, it is possible to detect an equivalent input from the home position identification unit 202 regardless of the flick operation in either direction.
- At least one of the uneven portion, the illumination portion, and the tactile difference with the other portions of the touch sensor 20A is provided at the position where the home position identification unit 202 of the touch sensor 20A is disposed.
- the projections and depressions are formed by providing protrusions at positions where the home position identification unit 202 of the touch sensor 20A is disposed.
- an illumination part is comprised by arrange
- the material of the position where the home position identification unit 202 is disposed is made of a material that is harder or softer than the hardness of the other parts of the touch sensor 20A, so that a tactile difference portion is configured. .
- the driver 50 can visually recognize the home position identifying unit 202 with a fingertip in a very short time.
- a cover 11 that covers the touch sensor 20A may be further provided.
- the cover 11 is omitted in FIGS. 6A and 6B to facilitate the description of the touch sensor 20A, but actually covers the touch sensor 20A as shown in FIG.
- at least 1 is provided among the uneven
- the projections and depressions are formed by providing protrusions at positions that cover the home position identification unit 202 of the cover 11.
- the illumination unit is configured by thinning the cover 11 so that the position covering the home position identification unit 202 is transparent and disposing the chip LED directly under the cover 11.
- the material of the position which has the home position identification part 202 of the cover 11 is made into the material harder than the hardness of the other part of the cover 11, or a soft material, and a tactile difference part is comprised.
- the driver 50 can visually recognize the home position identifying unit 202 with a fingertip in a very short time.
- the driver 50 can recognize the home position identifying unit 202 more easily.
- the home position identification unit 202 is composed of one or more elements belonging to a region including a predetermined position of the slider 201, for example, a central position in the width direction of the slider 201, among a plurality of elements constituting the slider 201. Yes.
- the home position identification unit 202 is provided at the center in the width direction of the slider 201 when the slider 201 is attached so as to be substantially orthogonal to the circumferential direction of the annular portion of the steering wheel 10. Accordingly, when the detection circuit 22 detects a capacitance value that is equal to or greater than the threshold value in one or more elements, the fingertip of the driver 50 is touched on the home position identification unit 202 based on the detected position of the elements. This can be detected.
- the detection circuit 22 detects that the home position identification unit 202 has been touched when an electrostatic capacitance value equal to or greater than a threshold value is detected for a predetermined period or more in an element located in the home position identification unit 202. It is good.
- Switch 203 and switch 204 accept an operation (second operation) including a tap operation.
- the switch 203 and the switch 204 are arranged in the circumferential direction of the annular portion of the steering wheel 10 and are arranged at positions determined in advance from the operation start trigger unit (home position identification unit 202).
- the touch sensor As a result, an input operation (second operation) such as touch input or tap input can be performed on the switch 203 and the switch 204.
- the switch 203 and the switch 204 are provided in the circumferential direction of the annular portion of the steering wheel 10 and at predetermined positions above and below the home position identifying unit 202.
- the predetermined position refers to a position (for example, 1 cm) at which the driver 50 can easily reach the switch 203 when the fingertip positioned at the home position identification unit 202 is extended and the switch 204 when the fingertip is bent. ⁇ 1.5 cm).
- the switch 203 and the switch 204 are covered with a cover 11 made of urethane or leather, which becomes the surface of the steering wheel 10.
- a cover 11 made of urethane or leather, which becomes the surface of the steering wheel 10.
- at least one of a concavo-convex portion, an illumination portion, and a tactile sensation difference portion is provided in the same manner as the home position identification portion 202. Accordingly, the driver 50 can recognize the switch 203 and the switch 204 with a visual recognition or a tactile sensation in a very short time.
- switch 203 and the switch 204 may be used to switch the sound source of the audio playback unit 31 in FIG.
- the switch 203 and the switch 204 may be used to adjust the volume reproduced by the audio reproducing unit 31.
- FIG. 8A is a diagram for explaining a method for detecting an operation on the slider 201.
- FIG. 8B is a diagram for explaining the temporal characteristics at the finger detection position of the operation on the slider 201.
- FIG. 8A shows individual elements constituting the slider 201 and coordinates for the individual elements. Then, there is a home position identifying unit 202 at the center of the slider 201 at the position where the coordinate is zero.
- the upward coordinate from the home position identifying unit 202 is + X
- the downward coordinate is ⁇ X. This coordinate indicates the finger detection position.
- the horizontal axis indicates time t
- the vertical axis indicates the finger detection position X.
- a region A shows a small movement near the home position identification unit 202. That is, in the region A, the driver's 50 finger is only at the element of the home position identifying unit 202 of the slider 201 or an element in the vicinity thereof, and therefore it is considered that there is no flick operation on the slider 201.
- the control unit 32 determines that there is no input operation from the slider 201 to the audio playback unit 31 and does not control the audio playback unit 31.
- Region B indicates that the operation of sliding or flicking with the finger in the finger detection position + X direction is repeated with respect to the slider 201. That is, in the region B, the driver 50 repeats the operation of sliding or flicking the finger in order from the lower element to the upper element among the plurality of elements constituting the slider 201 in FIG. 8A.
- the operation of sliding or flicking a finger in order with respect to the plurality of elements is an operation of sliding the finger while touching the plurality of elements with the finger.
- the driver 50 repeats the sliding or flicking operation four times. Therefore, it is considered that the flick operation or the slide operation is performed a plurality of times in the region B. Therefore, for example, in the configuration of FIG.
- the control unit 32 determines that the input operation to the audio reproduction unit 31 is performed by the slider 201. Then, the control unit 32 controls the audio reproduction unit 31 so that the music piece of the sound source is forwarded every time a flick operation is performed in the + X direction. The control unit 32 recognizes the flick operation from either the finger detection position 0 or the position in the ⁇ X direction to the + X direction in FIG. 8B as one flick operation, and controls the audio playback unit 31.
- the touch sensor 20A can smoothly start and continue the blind operation of the driver 50 while reducing the erroneous input of the driver 50.
- Region C indicates that the operation of sliding or flicking the finger in the ⁇ X direction with respect to the slider 201 has been performed once. Therefore, in the configuration of FIG. 4, the control unit 32 determines that an input operation in the direction opposite to the region B with respect to the audio reproduction unit 31 is performed by the slider 201. Then, the control unit 32 controls the audio reproduction unit 31 so that the music piece of the sound source is returned to the previous one.
- Area D indicates that no operation is performed on the slider 201. That is, in the region D, it is indicated that the finger is not touching any of the plurality of elements constituting the slider 201. Therefore, in the configuration of FIG. 4, the control unit 32 determines that the input operation to the audio reproduction unit 31 is not performed by the slider 201. Further, when it is determined that the input to the audio playback unit 31 cannot be obtained from the slider 201 for a certain period, the control unit 32 determines the currently selected music piece. Then, the control unit 32 controls the audio reproduction unit 31 to reproduce the confirmed song.
- the driver 50 may do the following. 1) Operate other than the slider 201, 2) Do not perform any operation for a predetermined period, or 3) Select a plurality of detection positions among the detection positions of the plurality of elements constituting the switch 203, the switch 204 and the slider 201. Touch at the same time.
- the detection circuit 22 ends the first operation or cancels the processing. To do.
- Another operation is not limited to the case where the switch 203 or 204 is pressed during the first operation, but the home position identification unit 202 is touched or the entire hand of the driver 50 is put on the slider 201. It may be an operation.
- the detection circuit 22 detects a capacitance value smaller than the threshold value for all of the plurality of elements constituting the slider 201 for the first predetermined period or longer, the slider 201 The first operation is processed as having been completed.
- the first predetermined period is a period in which the first operation is determined to be completed by continuing a state in which the detection circuit 22 determines that the first operation has not been performed and is smaller than the threshold value of the capacitance value. This is stored in the detection circuit 22 in advance.
- the detection circuit 22 detects a capacitance value that is equal to or greater than a threshold value for a second predetermined period of time at almost the same time. If so, the first operation is processed as finished. In the second predetermined period, the state that is greater than the threshold value of the capacitance value determined by the detection circuit 22 that the first operation is performed with a predetermined number of elements or more is continued. This is a period during which the operation is determined to be completed, and is stored in the detection circuit 22 in advance.
- the detection circuit 22 determines that the operation on the slider 201 is an invalid operation. It may be processed. Thereby, erroneous input to the slider 201 is reduced.
- the detection circuit 22 switches the internal switch at a high speed every 1 to 10 milliseconds for a plurality of detection units such as a plurality of elements, the switch 203, and the switch 204. Capacitance values of a plurality of elements are sequentially detected. For this reason, the detection circuit 22 can detect that a plurality of elements are touched substantially simultaneously, for example.
- FIG. 9 is a diagram illustrating an example of a state in which the driver 50 is gripping the entire touch sensor 20A.
- FIG. 10 is a diagram illustrating an example of a state in which a finger is in contact with a plurality of elements of the touch sensor 20A.
- the detection circuit 22 can detect not only when the finger is directly touching the slider 201 but also when the finger is close to the slider 201. Become. Therefore, even when a finger is partially lifted at a plurality of detection positions, the detection circuit 22 compares the capacitance value obtained from the element with the threshold value to determine whether the fingertip is touched as a whole. It is possible to detect whether or not
- the detection circuit 22 treats the operation as an invalid operation in which the operation on the slider 201 is not performed. Also good. Specifically, the detection circuit 22 detects that the touch sensor 20 ⁇ / b> A is touched substantially simultaneously with a plurality of elements that exceed the number of elements that can be touched with one finger. In this case, the input device 100 determines that the hand 52 of the driver 50 covers the entire touch sensor 20A or the slider 201, and processes it as an invalid operation in which no operation is performed on the slider 201.
- the input device 100 or the input device 100A may determine that a part of the steering wheel 10 is gripped when it is detected that the detection circuit 22 is touched by a plurality of elements substantially simultaneously as described above.
- the invalid operation process may be performed using the grip sensor 60.
- the grip sensor 60 is divided into four parts in the annular part of the steering wheel 10. Therefore, when the steering wheel 10 is gripped, the grip sensor 60 can specify the position where the steering wheel 10 is gripped.
- the driver 50 normally holds the steering wheel 10 so as to cover the grip sensor 60 and not the touch sensor 20 when driving the vehicle. Therefore, the output of the grip sensor 60 in this case is sufficiently large.
- the hand 52 moves to a position covering the touch sensor 20.
- the grip sensor 60 is not disposed so as to overlap the touch sensor 20
- the area of the grip sensor 60 covered by the hand 52 is reduced, and the output is reduced. Therefore, it is determined that the position of the hand 52 specified by the grip sensor 60 is a position where the slider 201 of the annular portion is disposed.
- the detection circuit 22 invalidates the detection of the first operation on the slider 201. Therefore, the input device 100A can invalidate operations on the slider 201 and the like that are not intended by the driver 50, so that the possibility of erroneous input by the driver 50 is reduced.
- the grip sensor 60 can detect the first position where the steering wheel 10 is gripped. This is because the larger the area of the hand 52 covering the grip sensor 60, the larger the output, and the more the first position of the hand 52 deviates from the grip sensor 60, the smaller the area of the hand 52 covering the grip sensor 60 and the smaller the output. It is. Accordingly, if the thumb of the hand 52 is present at the second position as shown in FIG. 10 so as to cover the slider 201, the area where the hand 52 covers the grip sensor 60 is reduced accordingly. The output of the sensor 60 becomes small. Therefore, the first position and the second position have a correlation.
- the detection circuit 22 stores the correlation between the first position and the second position in advance.
- the second position can be estimated based on the first position. Then, when the second position estimated from the correlation based on the first position specified by the grip sensor 60 is the position where the slider 201 is disposed, the detection circuit 22 detects the first operation on the slider 201.
- the detection circuit 22 detects a touch on a plurality of elements of the switch 204 and the slider 201 other than the switch 203 that the driver 50 is to operate with a fingertip.
- the detection circuit 22 preferentially detects an input operation presumed to be touched with a fingertip.
- the detection circuit 22 uses the correlation described above to enable an input operation that is estimated to be touched with the fingertip, and invalidates an input operation that is estimated to be touched at a portion including the palm other than the fingertip.
- the grip sensor 60 is used, the position of the palm can be roughly specified. Therefore, the input device 100A can distinguish between the fingertip and the other part including the palm, and can specify the position of the fingertip. As a result, this processing example can be realized.
- the detection circuit 22 determines that the fingertip touches the switch 203 and the palm covers the plurality of elements and the switch 204. Based on this determination, a process for distinguishing the fingertip from the palm and giving priority to the operation of the fingertip is performed. The detection circuit 22 prioritizes the fingertip touch detection and invalidates the palm side touch detection.
- the detection circuit 22 distinguishes between the fingertip and the palm and prioritizes the operation of the fingertip. Can be done.
- the detection circuit 22 when the detection circuit 22 performs processing that prioritizes touch detection of the fingertips, the touch sensor 20A is grasped when touch detection is performed with a plurality of elements and the switch 204 as invalid operation processing. judge. Then, the detection circuit 22 does not invalidate all input operations to the touch sensor 20A, but validates only the input operation of the switch 203 by the fingertip. Furthermore, when it is desired to perform grip detection with the touch sensor 20A, the detection circuit 22 determines whether or not a plurality of elements that are not on the path from the palm to the fingertip are gripped substantially simultaneously.
- the speed or movement amount of the flicking or sliding operation from the home position identification unit 202 in the slider 201 by the fingertip of the driver 50 is equal to or less than a predetermined threshold value.
- the predetermined threshold is a value that is determined as not being operated with intention if the speed or moving distance of the flicking or sliding operation is smaller than this.
- This threshold value is determined in advance by actually measuring the movement of the fingertip and stored in the detection circuit 22.
- the detection circuit 22 invalidates the operation on the slider 201 when the speed or movement amount of the operation of sliding from the home position identification unit 202 is equal to or less than a predetermined threshold and touch detection is performed by the switch 203 thereafter. Enable the operation. As a result, erroneous input can be suppressed even when the distance between the slider 201 and the switch 203 and switch 204 is small.
- FIG. 11 is a flowchart showing an example of an input method of the input device 100A.
- FIG. 12A is a flowchart illustrating an example of processing for enabling the touch sensor 20A.
- FIG. 12B is a flowchart illustrating another example of processing for enabling the touch sensor 20A.
- FIG. 13 is a flowchart illustrating an example of a switch process for the touch sensor 20A.
- FIG. 14 is a flowchart illustrating an example of slider processing for the touch sensor 20A.
- FIG. 15 is a flowchart illustrating an example of a grip process for the touch sensor 20A.
- the input device 100A performs a touch sensor validation process (S10).
- the touch sensor 20A is activated by the method shown in FIG. 12A or 12B.
- the input device 100A first detects whether or not a finger or the like is touched on the home position identifying unit 202 (S101). When it is detected that a finger or the like has been touched on the home position identifying unit 202 (Yes in S101), the input device 100A enables the touch sensor 20A (S102). If it is not detected that a finger or the like has been touched on the home position identifying unit 202 (No in S101), the input device 100A returns to the operation in S101 and continues until the finger or the like is touched on the home position identifying unit 202. wait.
- the input device 100A detects that the steering wheel 10 is grasped by a hand based on the output of the grip sensor 60, and enables the touch sensor 20A. At this time, the input device 100A first detects whether or not the steering wheel 10 is grasped by a hand based on the output of the grip sensor 60 (S101a). When it is detected that the steering wheel 10 is grasped by a hand (Yes in S101a), the input device 100A enables the touch sensor 20A (S102). If it is not detected that the steering wheel 10 is grasped by the hand (No in S101a), the input device 100A returns to the operation of S101a and waits until the steering wheel 10 is grasped by the hand.
- the input device 100A enables the touch sensor 20A by enabling detection of the first operation on the slider 201 and detection of the second operation on the switch 203 and the switch 204.
- the input device 100 ⁇ / b> A determines whether or not the finger has continuously touched the elements constituting the home position identifying unit 202 for a certain period of time (S ⁇ b> 11).
- the switch processing is specifically processed as shown in FIG. First, in FIG. 13, the input device 100A determines whether or not the touch to the switch 203 and the switch 204 is one place (S141). When it is determined that the touch on the switch 203 and the switch 204 is not one place (No in S141), the input device 100A determines an operation target switch (S143), and determines an operation for the determined switch (S144). In this embodiment, there are two switches, the switch 203 and the switch 204, and the case where the touch to the switch 203 and the switch 204 is not one place is a case where the two switches are touched simultaneously. At this time, the input device 100A determines an operation such as a tap input of the switch 203 touched by the fingertip as described above.
- the input device 100A determines whether there is an operation such as a tap input on the switch 203 or the switch 204. (S142). When the input device 100A determines that there is a tap input operation (Yes in S142), the input device 100A determines the operation on the switch 203 or the switch 204 (S144). If it is not determined that there is a tap input operation (No in S142), the input device 100A returns to the operation of S142 and waits until it is determined that there is a tap input operation.
- the input device 100A determines that the finger does not touch a plurality of elements exceeding the width of the home position identification unit 202 and one finger at the same time (No in S15), the input device 100A operates as follows. To do. That is, the input device 100A checks whether the switch 203 is touched via the home position identifying unit 202 by extending the fingertip after the input operation is validated by the finger touching the home position identifying unit 202. Determine (S16).
- the input device 100A When the input device 100A does not determine that the finger touches the switch 203 via the home position identifying unit 202 after touching the home position identifying unit 202 (No in S16), the input device 100A performs the slider process. After (S17), the process ends.
- the input device 100A determines whether or not the finger has moved from the home position identification unit 202 to an element constituting the slider 201 (S171). When it is determined that the finger has not moved from the home position identifying unit 202 to the element constituting the slider 201 (No in S171), the input device 100A determines whether or not a certain time has passed (S172).
- the certain time is a time until a subsequent input operation becomes invalid without a subsequent input operation, although a finger touches the home position identification unit 202.
- the fixed time is a period from when the flowchart of FIG. 14 is executed by the input device 100A until, for example, 1 second elapses, and is measured by the input device 100A.
- the input operation becomes invalid, and the input device 100A ends the slider process. If the predetermined time has not elapsed (No in S172), the input device 100A returns to S171 to wait until the predetermined time elapses.
- the input device 100A determines whether there is a finger movement on the slider 201 (S173). Specifically, the input device 100A determines whether the movement of the finger on the slider 201 is equal to or greater than a threshold determined by a predetermined speed or a predetermined movement distance.
- the input device 100A determines that there is a finger movement on the slider 201 (Yes in S173), the input device 100A acquires the coordinates of the slider 201 to which the finger has moved, and outputs the result to, for example, the control unit 32 (S174). Proceed to S175. On the other hand, if the input device 100A determines that there is no finger movement on the slider 201 (No in S173), the input device 100A directly proceeds to S175.
- the input device 100A determines whether or not the finger has moved away from the slider 201. If the finger is not separated from the slider 201 (No in S175), the input device 100A advances the process to S176. On the other hand, if the input device 100A determines that the finger is away from the slider 201 (Yes in S175), it is determined that the operation with the finger has been confirmed, and the process proceeds to S177.
- the input device 100A determines whether or not a predetermined time has passed with the finger touching without moving away from the slider 201.
- the fixed time is a period from when the flowchart of FIG. 14 is executed by the input device 100A until one second elapses, and is measured by the input device 100A. If the predetermined time has not elapsed (No in S176), there is a possibility that the operation is continued with the finger, and the process returns to S173. On the other hand, when the predetermined time has elapsed (Yes in S176), the input device 100A determines that the operation with the finger has been confirmed, and proceeds to S177.
- the input device 100A determines the coordinates of the slider 201 acquired in S174 or determines that the flick operation has been performed once, and outputs the result to the control unit 32, for example. Then, the input device 100A determines whether or not a certain time has elapsed (S178). As described in S172, the fixed time is a period from when the flowchart of FIG. 14 is executed by the input device 100A until one second elapses, and is measured by the input device 100A. If the predetermined time has not elapsed (No in S178), the input device 100A may be continuously operated with a finger, and thus the process returns to S173. On the other hand, when the predetermined time has elapsed (Yes in S178), the input device 100A assumes that the operation with the finger is finished, and the slider process is also finished.
- erroneous input can be reduced even when the driver performs input while holding the steering wheel.
- the input device in the present embodiment has a touch sensor provided at a predetermined position of a ring portion (rim) of the steering wheel. Further, the touch sensor is provided with a home position identification unit (operation start trigger unit) that is a starting point of the first operation that is a flick operation and a slide operation. A slider capable of detecting a flick operation and a switch capable of detecting a tap input are provided around the home position identification unit. With these configurations, the input device according to the present embodiment can perform an input operation by a slide operation, a flick operation, and a tap operation.
- a home position identification unit operation start trigger unit
- a slider capable of detecting a flick operation and a switch capable of detecting a tap input are provided around the home position identification unit.
- the driver does not need to start the input operation from the home position identification unit. Thereby, erroneous input is reduced, and the driver can smoothly perform an input operation in a blind manner.
- FIG. 16A is a diagram illustrating an example of the steering wheel 10 in which the touch sensor 20B according to the first modification of the present embodiment is disposed.
- FIG. 16B is a view for explaining the positional relationship between the touch sensor 20B and the steering wheel 10 shown in FIG. 16A.
- the cover 11 is omitted for easy understanding of the touch sensor 20B.
- the position of the touch sensor 20A that is, the position of the slider 201, the switch 203, and the switch 204 is set to a predetermined position as shown in FIGS. 6A and 6B (operation of the annular portion of the steering wheel 10).
- the present invention is not limited to this.
- the plurality of elements of the slider 201B are arranged side by side in a direction substantially orthogonal to the direction of rotation of the annular portion, and one or more of the plurality of elements It is good also as a structure by which an element is arranged inside a ring part.
- the slider 201B has a plurality of elements for detecting the capacitance value.
- the plurality of elements constituting the slider 201B are arranged in a direction substantially perpendicular to the axis 10a in the circumferential direction of the annular portion of the steering wheel 10, and are arranged inside the annular portion.
- at least a part of the array of the plurality of elements is orthogonal to the axis 10a of the annular portion and arranged along the inner surface of the annular portion.
- the direction substantially orthogonal to the shaft 10a is defined as a direction orthogonal to the shaft 10a within a range in which the driver can easily perform a flick operation and a slide operation on a plurality of elements. It is determined in advance according to the size of.
- the driver 50 When the driver 50 performs steering, a large force is applied to the steering wheel 10 by the driver 50, or the driver 50 may rotate the steering wheel 10 at a high speed.
- a slider 201B, a home position identification unit 202B, a switch 203B, and a switch 204B are provided inside the annular portion of the steering wheel 10. As a result, the steering wheel 10 is less likely to come into contact with the steering wheel 10 during steering, so that a sense of discomfort is reduced and the driver 50 can easily steer.
- the entire slider 201B is arranged inside the annular portion of the steering wheel 10.
- the home position identifying portion 202B and the uneven portion are arranged inside the annular portion.
- several elements May be arranged outside the annular portion.
- the plurality of elements are arranged from the inside to the outside on the surface of the annular portion.
- FIG. 17A is a diagram illustrating an example of a state in which a flick operation is performed on the touch sensor 20C according to the second modification of the present embodiment.
- FIG. 17B is a diagram illustrating an appearance of the touch sensor 20C illustrated in FIG. 17A.
- the cover 11 is omitted for easy understanding of the touch sensor 20C.
- the plurality of elements constituting the slider 201 are arranged side by side in a direction substantially orthogonal to the direction in which the annular portion circulates. Not limited to that.
- the plurality of elements constituting the slider 201C may be arranged in a direction substantially orthogonal to the direction of rotation of the annular portion of the steering wheel 10 and so as to expand in a fan shape.
- a home position identifying unit 202 is provided at the center in the width direction of the slider 201C, and a plurality of elements are arranged in a shape that extends in a fan shape with the home position identifying unit 202 as the center. .
- the slider 201C has a plurality of elements that respectively detect capacitance values, and the home position identification unit 202 is provided at the center in the width direction of the slider 201C.
- the plurality of elements are arranged in a direction substantially orthogonal to the direction of rotation of the annular portion of the steering wheel 10 and expand in a fan shape around the home position identification unit 202. It is arranged.
- the fan-shaped shape is not limited to a shape in which a plurality of elements expand from the home position identification unit 202 to the left and right sides, but may be a shape that expands in a fan shape to one side.
- the angle of the fan-shaped shape may be appropriately set between 90 degrees with the direction orthogonal to the axis of the annular portion as 0 degrees. This angle is set so as not to interfere with the operation of the fingertips by various drivers 50 depending on the arrangement of the touch sensor 20C on the annular portion and the size of the steering wheel 10. Note that when a switch is provided in the touch sensor 20C, the switch is arranged at a position that does not overlap the fan-shaped slider 201C.
- the degree of freedom increases to an angle at which the driver 50 can move his / her finger from the home position identifying unit 202 on the annular portion, so that the driver 50 moves the finger smoothly to perform an operation on the slider 201C. Is possible. Moreover, the individual difference with respect to the direction which slides the driver
- 17A and 17B show an example in which a plurality of elements constituting the slider 201C are arranged in a fan-like shape, this is not limited to a fan shape, and a plurality of elements However, it may be a shape that expands into a non-linear shape such as a fan shape. For this reason, the shape of the slider 201 ⁇ / b> C may be any shape that expands as the distance from the home position identification unit 202 increases.
- the touch sensor 20A is provided on the right side toward the steering wheel 10 as a predetermined position, but is not limited thereto.
- the touch sensor 20 ⁇ / b> A may be provided on the left side of the steering wheel 10 or may be provided on the left and right sides of the steering wheel 10. In the case of a configuration provided on the left and right, a configuration in which an operation such as a flick operation is performed by combining the left and right touch sensors 20A may be employed.
- the present invention is not limited to this embodiment. Unless it deviates from the gist of the present invention, various modifications conceived by those skilled in the art have been made in the present embodiment, and forms constructed by combining components in different embodiments are included in the scope of the present invention. .
- the present invention can be used for a vehicle including an annular steering wheel, and in particular, can be used for an input device provided in a vehicle such as an automobile and an input method thereof.
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Abstract
Description
検出回路22は、スライダ201に対する第1操作の検出を有効にした後、スイッチ203またはスイッチ204に対する第2操作を検出したときに、スライダ201に対する第1操作が終了したとする。
検出回路22は、スライダ201を構成する複数のエレメントのすべてにおいて閾値より小さい静電容量の値を第1所定期間以上検出した場合に、スライダ201に対する第1操作が終了したとして処理される。なお、第1所定期間は、検出回路22により第1操作が行われていないと判断される静電容量の値の閾値より小さい状態が継続することで、第1操作が終了すると判断される期間のことであり、予め検出回路22に記憶される。
スライダ201を構成する複数のエレメントのうち予め定めた数以上のエレメントにおいて、略同時に第2所定期間、閾値以上の静電容量の値が検出回路22により検出された場合に、第1操作が終了したとして処理される。なお、第2所定期間は、検出回路22により予め定めた数以上のエレメントで第1操作が行われていると判断される静電容量の値の閾値より大きい状態が継続することで、第1操作が終了すると判断される期間のことであり、予め検出回路22に記憶されている。
例えば図9に示すように、タッチセンサ20Aまたはスライダ201の全体に運転者50の手52が被さっている場合には、検出回路22はスライダ201に対する操作が行われていない無効操作として処理してもよい。具体的には、タッチセンサ20Aにおいて1本の指で接触可能なエレメントの数を上回る複数のエレメントで略同時にタッチされたことが検出回路22により検知される。この場合、入力装置100は、タッチセンサ20Aまたはスライダ201の全体に運転者50の手52が被さっていると判定し、スライダ201に対する操作は行われていない無効操作として処理する。
例えば、グリップセンサ60がステアリングホイール10に配置されている入力装置100Aでは、グリップセンサ60を利用して、無効操作の処理を行ってもよい。
ホーム位置識別部202から指をスライドまたはフリックさせる動作のスピードや移動距離が一定の閾値以下の場合、入力装置100、100Aは、スライダ201に対するスライド操作またはフリック操作を無効とする無効操作の処理をしてもよい。
図10に示すように、スライダ201の複数のエレメントとスイッチ203、204とが指により跨って略同時にタッチされている場合、入力装置100、100Aは、スライダ201に対する操作を無効とする無効操作の処理をしてもよい。
前述のように、グリップセンサ60は、ステアリングホイール10が握られた第1位置を検出することができる。これは、グリップセンサ60を覆う手52の面積が大きいほど出力が大きく、手52の第1位置がグリップセンサ60からずれるほど、手52がグリップセンサ60を覆う面積が小さくなり出力が小さくなるためである。したがって、手52の親指が図10に示すようにスライダ201を覆うような第2位置に存在すると、その分、手52がグリップセンサ60を覆う面積が小さくなるので、第1位置に基づいてグリップセンサ60の出力は小さくなる。このことから、第1位置と第2位置は相関関係を有する。そして、検出回路22は第1位置と第2位置の相関関係を予め記憶しておく。これにより、第1位置に基づき第2位置を推定することが可能となる。そして、グリップセンサ60により特定された第1位置に基づき、相関関係から推定される第2位置が、スライダ201が配置されている位置である場合、検出回路22はスライダ201に対する第1操作の検出を有効にする。
例えば、スイッチ203に対する操作をブラインドで行うために、運転者50がホーム位置識別部202をタッチした後に、指でスイッチ203を探す場合が想定される。
図16Aは、本実施の形態の変形例1におけるタッチセンサ20Bが配置されたステアリングホイール10の一例を示す図である。図16Bは、図16Aに示されるタッチセンサ20Bとステアリングホイール10との位置関係を説明するための図である。なお、図16Aと図16Bでは、タッチセンサ20Bをわかりやすく示すために、カバー11が省略されている。
図17Aは、本実施の形態の変形例2におけるタッチセンサ20Cに対するフリック操作が行われている様子の一例を示す図である。図17Bは、図17Aに示されるタッチセンサ20Cの外観を示す図である。なお、図17Aでは、タッチセンサ20Cをわかりやすく示すために、カバー11が省略されている。
なお、上記実施の形態において、タッチセンサ20Aは、予め定められた位置として、ステアリングホイール10に向かって右側に設けられているが、それに限らない。タッチセンサ20Aは、ステアリングホイール10の左側に設けられる構成としてもよいし、ステアリングホイール10の左右に設けられる構成としても良い。左右に設けられる構成の場合、左右のタッチセンサ20Aを組み合わせてフリック操作等の操作が行われる構成とすることも可能である。
10a 軸
11 カバー
20,20A,20B,20C タッチセンサ
21 タッチセンサ領域
22 検出回路
30 車載機器
31 オーディオ再生部
32 制御部
33 スピーカ
40 座席
50 運転者
51,52 手
60 グリップセンサ
100,100A 入力装置
201,201B,201C スライダ
201a,201b,201c,201d,201e,201f エレメント
202,202B ホーム位置識別部
203,203B,204,204B スイッチ
Claims (18)
- 静電容量方式のスライダを有する操作部と、
前記スライダの予め定められた位置に設けられ、前記スライダに対するフリック操作を含む第1操作を開始するための操作開始トリガ部と、
前記操作開始トリガ部がタッチされたことを検出した場合に、前記スライダに対する前記第1操作の検出を有効にする検出回路と、を備える、
入力装置。 - 前記操作部は、円環部を有するステアリングホイールである、
請求項1に記載の入力装置。 - 前記スライダは、前記ステアリングホイールが中立位置にあるときの前記円環部の予め定められた位置に配置され、前記円環部の周回する方向に対し実質的に直交する方向に延びている、
請求項2に記載の入力装置。 - 前記スライダは、それぞれ静電容量の値の検出を行う複数のエレメントを有し、
前記複数のエレメントは、前記円環部の周回する方向に対し実質的に直交する方向に並んでいる、
請求項2に記載の入力装置。 - 前記操作開始トリガ部は、前記複数のエレメントのうち、前記スライダの前記予め定められた位置を含む領域に属する1以上のエレメントで構成され、
前記検出回路は、前記1以上のエレメントにおいて閾値以上の静電容量の値を検出した場合に、前記操作開始トリガ部がタッチされたことを検出する、
請求項4に記載の入力装置。 - 前記操作開始トリガ部は、前記複数のエレメントのうち、前記スライダの前記予め定められた位置を含む領域に属する1以上のエレメントで構成され、
前記検出回路は、前記1以上のエレメントにおいて閾値以上の静電容量の値を予め定められた期間以上検出した場合に、前記操作開始トリガ部がタッチされたことを検出する、
請求項4に記載の入力装置。 - 前記スライダは、それぞれ静電容量の値の検出を行う複数のエレメントを有し、
前記操作開始トリガ部は、前記スライダにおいて指をスライドさせる方向の中央に設けられており、
前記複数のエレメントは、前記円環部の周回する方向に対し実質的に直交する方向に並んで、かつ、前記操作開始トリガ部を中心として扇状に拡がるように配列されている、
請求項2に記載の入力装置。 - 前記スライダは、それぞれ静電容量の値の検出を行う複数のエレメントを有し、
前記複数のエレメントは、前記円環部の周回する方向に対し実質的に直交する方向に並んで配列され、かつ、前記複数のエレメントのうちの1以上のエレメントが前記円環部の内側に配列されている、
請求項2に記載の入力装置。 - 前記円環部の円周方向であって、かつ、前記操作開始トリガ部から予め決められた位置に配置され、静電容量方式のタッチセンサで構成されタップ操作を含む第2操作を受付けるためのスイッチをさらに備える、
請求項2に記載の入力装置。 - 前記検出回路は、前記第1操作の検出を有効にした後、前記スイッチに対する前記第2操作を検出したときに、前記第1操作が終了したことを検出する、
請求項9に記載の入力装置。 - 前記ステアリングホイールが握られたことを検知するグリップセンサをさらに備え、
前記グリップセンサは、前記円環部の前記スライダとは異なる位置に配置される、
請求項2に記載の入力装置。 - 前記グリップセンサは、さらに、前記ステアリングホイールが握られた場合に、前記ステアリングホイールが握られた位置を特定し、
前記検出回路は、前記グリップセンサにより特定された前記位置が、前記円環部の前記スライダが配置されている位置である場合、前記スライダに対する前記第1操作の検出を無効にする、
請求項11に記載の入力装置。 - 前記グリップセンサは、さらに、前記ステアリングホイールが握られた場合に、前記ステアリングホイールが握られた第1位置を特定し、
前記検出回路は、前記グリップセンサにより特定された前記第1位置に基づき、予め求められた前記第1位置との相関関係から推定される第2位置が、前記スライダが配置されている位置である場合、前記スライダに対する前記第1操作の検出を有効にする、
請求項11に記載の入力装置。 - 前記スライダは、それぞれ静電容量の値の検出を行う複数のエレメントを有し、
前記検出回路は、前記複数のエレメントにおいて閾値より小さい静電容量の値を第1所定期間以上検出した場合に、前記第1操作が終了したことを検出する、
請求項1に記載の入力装置。 - 前記スライダは、それぞれ静電容量の値の検出を行う複数のエレメントを有し、
前記検出回路は、前記複数のエレメントのうち予め定めた数以上のエレメントにおいて略同時に第2所定期間、閾値以上の静電容量の値を検出した場合に、前記第1操作が終了したことを検出する、
請求項1に記載の入力装置。 - 前記スライダを覆うカバーをさらに備え、
前記カバーの前記操作開始トリガ部を覆う位置には、凹凸部、照光部、および前記カバーの他の部分との触感の相違部、のうち少なくとも1つが設けられる、
請求項1に記載の入力装置。 - 前記スライダの前記操作開始トリガ部が配される位置には、凹凸部、照光部、および前記スライダの他の部分との触感の相違部、のうち少なくとも1つが設けられる、
請求項1に記載の入力装置。 - 静電容量方式のスライダを有する操作部と、前記スライダの予め定められた位置に設けられた操作開始トリガ部と、を有する入力装置における入力方法であって、
前記操作開始トリガ部がタッチされたか否かを検出するステップと、
前記操作開始トリガ部にタッチされたことを検出した場合に、前記スライダに対する第1操作の検出を有効にするステップと、を備えた、
入力方法。
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