Vehicle display device, vehicle display control method, and program

Abstract

To enable a user to recognize that a switch pressed to be to transferred from a first state to a second state cannot be returned from the second state to the first state, even if the switch is further pressed.SOLUTION: In a state in which an image of a switch 46C, which can be transferred from a first state in which an ACC is turned on to a second state in which the ACC is turned off when the switch is pressed for the first time and cannot be returned from the second state in which the ACC is turned off to the first state in which the ACC is turned on when the switch is pressed for the second time and thereafter, is displayed on an HUD 12, a character string 90 ([CANCELED]) representing completion of the transfer to the second state when the switch 46C is pressed once is displayed on the HUD.SELECTED DRAWING: Figure 8

Description

[Technical field]

[0001] This disclosure is a car The present invention relates to a dual-use display device, a vehicle display control method, and a vehicle display control program. [Background technology]

[0002] Patent Document 1 describes a technique in which the layout of switches provided on a steering wheel of a vehicle is displayed as an image on a head-up display (HUD). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-075157 Summary of the Invention [Problem to be solved by the invention]

[0004] The group of switches provided on the steering wheel of a vehicle may include switches (also called "one-way switches") that transition from a first state to a second state when pressed once and cannot return from the second state to the first state when pressed a second or subsequent times. Here, when an image of the group of switches provided on the steering wheel is displayed on the HUD, there is a risk that the user may misinterpret the operation of the one-way switch when pressed two or more times.

[0005] The present disclosure has been made in consideration of the above facts, and is directed to a method for making a user aware that a switch pressed to transition from a first state to a second state cannot be returned from the second state to the first state even if the user further presses the switch. Car An object of the present invention is to provide a dual-use display device, a vehicle display control method, and a vehicle display control program. [Means for solving the problem]

[0006] A vehicle display control device according to a first aspect includes a control unit that, while displaying on a display device an image of a switch that transitions from a first state to a second state when pressed once and that cannot return from the second state to the first state when pressed a second time or thereafter, causes the display device to display a string of characters indicating that the transition to the second state has been completed when the switch is pressed once.

[0007] In a first aspect, an image of a switch that transitions from a first state to a second state when pressed once and cannot be returned from the second state to the first state by pressing it a second time or later is displayed on a display device. Here, a character string indicating that the transition to the second state has been completed when the switch is pressed once is displayed on the display device. This allows the user to recognize, based on the character string displayed on the display device, that the second state cannot be returned to the first state even if the switch pressed to transition from the first state to the second state is pressed again.

[0008] In a second aspect, in the first aspect, the switch is a switch for transitioning from the first state in which cruise control is on to the second state in which the cruise control is off.

[0009] According to the second aspect, even if the switch that was pressed to transition from a cruise control on state to a cruise control off state is further pressed, the user can be made aware that the cruise control cannot be returned from the cruise control off state to the cruise control on state.

[0010] A third aspect is the second aspect, wherein the character string is "CANCELED".

[0011] According to the third aspect, the user can intuitively recognize that further pressing of the pressed switch does not return the cruise control from its OFF state to its ON state.

[0012] In a fourth aspect, in the first aspect, the switch is a switch for transitioning from the first state in which cruise control is off to the second state in which cruise control is activated with a previous setting value.

[0013] According to the fourth aspect, even if the switch that was pressed to transition from an off state of cruise control to a state in which cruise control is activated with the previous setting value is further pressed, the user can be made aware that the cruise control cannot be returned from a state in which cruise control is activated with the previous setting value to an off state.

[0014] A fifth aspect is the fourth aspect, wherein the character string is "RESUMED".

[0015] According to the fifth aspect, the user can intuitively recognize that even if the pressed switch is pressed again, the cruise control cannot be returned to an off state from a state in which the cruise control is activated with the previous setting value.

[0016] As a sixth aspect, in any of the first to fifth aspects, the control unit causes the display device to display the character string and then erases the display of the character string after a predetermined time has elapsed since the control unit caused the display device to display the character string.

[0017] According to the sixth aspect, it is possible to reduce the bothersomeness of displaying the character string on the display device, compared to a case where the character string is displayed on the display device and then the display of the character string is continued.

[0018] A seventh aspect is any one of the first to sixth aspects, wherein the display device is a HUD.

[0019] In the seventh aspect, since the display device is a HUD, the amount of eye movement required when the user views the image displayed on the display device from a state in which the user is viewing the area ahead of the vehicle through the windshield can be reduced, compared to when the display device is a meter display, for example.

[0020] A vehicle display device according to an eighth aspect includes the vehicle display control device according to any one of the first to seventh aspects, and the display device.

[0021] According to the eighth aspect, as in the first aspect, the user can be made aware that even if the switch that was pressed to transition from the first state to the second state is further pressed, the transition from the second state to the first state cannot be returned to.

[0022] A ninth aspect of a vehicle display control method includes causing a computer to execute a process that includes displaying on a display device an image of a switch that transitions from a first state to a second state when pressed once and that cannot return from the second state to the first state when pressed a second time or later, and causing the display device to display a string of characters indicating that the transition to the second state has been completed when the switch is pressed once.

[0023] According to the ninth aspect, similarly to the first aspect, the user can be made aware that even if the switch that was pressed to transition from the first state to the second state is further pressed, the transition from the second state to the first state cannot be returned to.

[0024] A vehicle display control program according to a tenth aspect causes a computer to execute processing including displaying on a display device an image of a switch that transitions from a first state to a second state when pressed once and that cannot return from the second state to the first state when pressed a second time or thereafter, and displaying on the display device a string indicating that the transition to the second state has been completed when the switch is pressed once.

[0025] According to the tenth aspect, as in the first aspect, the user can be made aware that even if the switch that was pressed to transition from the first state to the second state is further pressed, the transition from the second state to the first state cannot be returned to. Effect of the Invention

[0026] The present disclosure has an effect of making a user aware that even if a switch that has been pressed to transition from a first state to a second state is further pressed, the state cannot be returned from the second state to the first state. [Brief description of the drawings]

[0027] [Figure 1] 1 is a block diagram showing a schematic configuration of a vehicle display device and its periphery according to an embodiment; [Diagram 2] FIG. 1 is a schematic diagram illustrating an example of a HUD. [Diagram 3] FIG. 2 is a functional block diagram of a display control ECU. [Figure 4] 1 is a perspective view of a front portion of a vehicle cabin as viewed from the rear side of the vehicle. [Diagram 5] FIG. 2 is an enlarged view of a portion of the steering wheel. [Figure 6] 4 is a flowchart showing a control process executed by a display control ECU. [Figure 7] FIG. 13 is an image diagram showing an example of an image displayed on a HUD when the ACC is on. [Figure 8] FIG. 8 is an image diagram showing an example of an image displayed on the HUD when the switch is pressed and the ACC transitions from the state shown in FIG. 7 to an off state. [Figure 9] FIG. 9 is an image diagram showing an example of an image displayed on the HUD after a predetermined time has elapsed from the state shown in FIG. 8. [Figure 10] FIG. 13 is an image diagram showing an example of an image displayed on a HUD when the ACC is turned off. [Figure 11] FIG. 11 is an image diagram showing an example of an image displayed on the HUD when the switch is pressed from the state shown in FIG. 10 to a state in which the ACC is started with the previous setting value. [Figure 12] FIG. 12 is an image diagram showing an example of an image displayed on the HUD after a predetermined time has elapsed from the state shown in FIG. 11. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0028] An example of an embodiment of the present disclosure will be described in detail below with reference to the drawings. Fig. 1 shows a vehicle display device 10 according to the present embodiment. The vehicle display device 10 is mounted on a vehicle and includes a HUD 12, which is an example of a display device, and a display control ECU (Electronic Control Unit) 22 that controls the display of images by the HUD 12. The display control ECU 22 is an example of a vehicle display control device according to the present disclosure.

[0029] As shown in Fig. 2, the HUD 12 includes a display unit 14 that emits projection light for a display image, a mirror 16 made of a concave mirror that reflects and projects the projection light emitted from the display unit 14 onto a windshield 18 of the vehicle, and a mirror angle changing ACT (actuator) 20. A half mirror or other treatment is applied to the interior surface of the windshield 18 in a range 74 (see Fig. 4) onto which the display image is projected, allowing the user to view the projected display image and also view the scene outside the vehicle through the windshield 18. The mirror angle changing ACT 20 is capable of changing the projection position of the display image onto the windshield 18 by changing the angle of the mirror 16.

[0030] 1, the display control ECU 22 includes a CPU (Central Processing Unit) 24 and a memory 26 such as a ROM (Read Only Memory) and a RAM (Random Access Memory). The display control ECU 22 also includes a non-volatile storage unit 28 such as a HDD (Hard Disk Drive) or an SSD (Solid State Drive), a communication interface (I / F) 30, and an input / output I / F 31. The CPU 24, the memory 26, the storage unit 28, the communication I / F 30, and the input / output I / F 31 are connected to each other via an internal bus 32 so as to be able to communicate with each other.

[0031] A control program 34 is stored in the storage unit 28. The control program 34 is read from the storage unit 28 and loaded into the memory 26, and the control program 34 loaded into the memory 26 is executed by the CPU 24, so that the display control ECU 22 functions as the control unit 36 ​​shown in FIG.

[0032] The control unit 36 ​​performs the following process while displaying on the HUD 12 an image of a group of switches (e.g., steering switch group 44R, 44L described later) including a switch that transitions from the first state to the second state when pressed once and cannot return from the second state to the first state when pressed a second time or later. That is, the control unit 36 ​​causes the HUD 12 to display a character string indicating that the transition to the second state has been completed when the switch is pressed once. The control program 34 is an example of a vehicle display control program according to the present disclosure.

[0033] The display control ECU 22 is connected to a system bus 40, which is connected to an in-vehicle device 42, a right steering switch group 44R, a left steering switch group 44L, and a switch management ECU 80. The in-vehicle device 42 includes devices such as an air conditioner, audio, a car navigation system, and a voice input device, as well as driving support devices such as an ACC (Adaptive Cruise Control) device and an LTA (Lane Tracing Assist) device. Note that ACC is an example of a cruise control in this disclosure.

[0034] As shown in FIG. 4, an instrument panel 72 is disposed at the front of the vehicle interior of a vehicle 70 equipped with the vehicle display device 10 according to this embodiment. The windshield 18 is disposed at the front end of the instrument panel 72 and extends in the vehicle vertical direction and width direction to separate the interior and exterior of the vehicle interior. A steering wheel 76 is provided on the driver's seat side (right side of the vehicle) of the instrument panel 72 via a steering column (not shown). The steering wheel 76 has a substantially annular rim portion 76A. A hub portion 76B constituting the center portion is provided on the inner periphery of the rim portion 76A, and the rim portion 76A and the hub portion 76B are connected by a plurality of spoke portions 76C (three in this embodiment).

[0035] Spoke portion 76C is provided in three locations: between the right side of rim portion 76A and hub portion 76B, between the left side of rim portion 76A and hub portion 76B, and between the underside of rim portion 76A and hub portion 76B. Right steering switch group 44R is provided on spoke portion 76C between the right side of rim portion 76A and hub portion 76B. Left steering switch group 44L is provided on spoke portion 76C between the left side of rim portion 76A and hub portion 76B.

[0036] The right steering switch group 44R includes a right first tact switch 46, a right second tact switch 48, and a right third tact switch 50, each of which is configured by a contact detection type switch. Furthermore, the right steering switch group 44R includes a right first electrostatic sensor 52, a right second electrostatic sensor 54, and a right third electrostatic sensor 56.

[0037] 5, the right first tact switch 46 is shaped like a pentagon with rounded corners, and includes an upper switch 46A, a lower switch 46B, a right switch 46C, and a left switch 46D. Therefore, the right first tact switch 46 is configured to be able to be pressed up, down, left and right.

[0038] Further, the right first tact switch 46 is provided with a right first electrostatic sensor 52, which is capable of detecting that a user (hereinafter, simply referred to as a user) seated in the driver's seat of the vehicle has touched the right first tact switch 46. Specifically, it is capable of detecting which switch of the right first tact switch 46 the user has touched among the upper switch 46A, the lower switch 46B, the right switch 46C, and the left switch 46D.

[0039] The right second tact switch 48 is disposed to the left of the right first tact switch 46 when the steering wheel 76 is viewed from the front, and is formed in a generally rectangular shape with the vehicle vertical direction as the longitudinal direction, and includes an upper switch 48A and a lower switch 48B. Therefore, the right second tact switch 48 is configured to be able to be pressed up and down.

[0040] In addition, the right second tact switch 48 is provided with a right second electrostatic sensor 54, which is capable of detecting that the user has touched the right second tact switch 48. Specifically, it is capable of detecting which switch of the right second tact switch 48, the upper switch 48A or the lower switch 48B, the user has touched.

[0041] The right third tact switch 50 is disposed below the right first tact switch 46 and the right second tact switch 48 when viewed from the front of the steering wheel 76, and is formed in a substantially rectangular shape with the vehicle width direction as the longitudinal direction. The right third tact switch 50 is provided with a right third electrostatic sensor 56, and is configured to be able to detect when the right third tact switch 50 is touched by the user.

[0042] 1, the left steering switch group 44L includes a first left tact switch 58, a second left tact switch 60, and a third left tact switch 62, each of which is configured as a contact detection switch. Furthermore, the left steering switch group 44L includes a first left electrostatic sensor 64, a second left electrostatic sensor 66, and a third left electrostatic sensor 68.

[0043] 5, the left first tact switch 58 is roughly pentagonal in shape with rounded corners, and includes an upper switch 58A, a lower switch 58B, a right switch 58C, and a left switch 58D. Therefore, the left first tact switch 58 is configured so that it can be pressed up, down, left, and right.

[0044] In addition, the left first tact switch 58 is provided with a left first electrostatic sensor 64, which is capable of detecting that the user has touched the left first tact switch 58. Specifically, it is capable of detecting which switch of the left first tact switch 58 the user has touched among the upper switch 58A, the lower switch 58B, the right switch 58C, and the left switch 58D.

[0045] The left second tact switch 60 is disposed to the right of the left first tact switch 58 when the steering wheel 76 is viewed from the front, and is formed in a generally rectangular shape with the longitudinal direction being the vertical direction of the vehicle, and includes an upper switch 60A and a lower switch 60B. Therefore, the left second tact switch 60 is configured to be able to be pressed up and down.

[0046] In addition, the left second tact switch 60 is provided with a left second electrostatic sensor 66, which is capable of detecting that the user has touched the left second tact switch 60. Specifically, it is capable of detecting which switch of the left second tact switch 60, the upper switch 60A or the lower switch 60B, the user has touched.

[0047] The left third tact switch 62 is disposed below the left first tact switch 58 and the left second tact switch 60 when the steering wheel 76 is viewed from the front, and is formed in a substantially rectangular shape with the vehicle width direction as the longitudinal direction. The left third tact switch 62 is provided with a left third electrostatic sensor 68, which is capable of detecting that the left third tact switch 62 is touched by the user.

[0048] 1 includes a CPU, a memory, a non-volatile storage unit, a communication I / F, etc., similar to the display control ECU 22, although illustration is omitted. A function assignment table 82 is stored in the storage unit of the switch management ECU 80. The function assignment table 82 registers functions assigned to each switch of the switch groups 44R, 44L when the vehicle 70 is in each state, and conditions for the vehicle 70 to transition to each state.

[0049] When any one of the steering switch groups 44R, 44L is pressed, the switch management ECU 80 reads out the function assigned to the pressed switch from the function assignment table 82. Then, the switch management ECU 80 notifies the in-vehicle device 42 corresponding to the read-out function that pressing the switch has instructed execution of the read-out function.

[0050] 7 shows an image of the switch group 44R displayed on the HUD 12 in a first state in which the ACC of the vehicle 70 is on, and the function assigned to each switch is indicated by an icon or a character. For example, the right switch 58C is assigned a function of transitioning the vehicle 70 from the first state in which the ACC is on to a second state in which the ACC is off. When the right switch 58C is pressed by the user in the above-mentioned first state, the switch management ECU 80 notifies the ACC device of the in-vehicle equipment 42 that a transition to the second state in which the ACC is off has been instructed.

[0051] Next, as an operation of this embodiment, a control process executed by the display control ECU 22 while the ignition switch of the vehicle 70 is on will be described with reference to FIG.

[0052] In step 200 of the control process, the control unit 36 ​​determines whether or not to display an image of at least one of the switch groups 44R and 44L on the HUD 12. In the present embodiment, as an example, when any switch of the switch group 44R is touched by the user, the image of the switch group 44R is displayed on the HUD 12. Also, when any switch of the switch group 44L is touched by the user, the image of the switch group 44L is displayed on the HUD 12.

[0053] Therefore, if neither the switch group 44R nor the switch group 44L is touched, the determination in step 200 is negative, the process returns to step 200, and the determination in step 200 is repeated. In this case, images of the switch groups 44R, 44L are not displayed on the HUD 12. On the other hand, if at least one of the switch groups 44R, 44L is touched, the determination in step 200 is positive, and the process proceeds to step 202. In this case, the image of the touched switch group 44 out of the switch groups 44R, 44L is set as the display target.

[0054] After the image of the touched switch group 44 is displayed on the HUD 12, the image may be erased immediately when the touch is released, or the image may be erased when a predetermined time has elapsed since the touch was released.

[0055] In step 202, the control unit 36 ​​acquires from the switch management ECU 80 information (information registered in the function allocation table 82) indicating the function allocation status to each switch of the switch group to be displayed (at least one of the switch groups 44R and 44L).

[0056] In step 204, the control unit 36 ​​generates an image of the switch group to be displayed (at least one of the switch groups 44R and 44L) based on the information acquired in step 202. That is, the control unit 36 ​​first reads data of an image imitating the switch group 44 to be displayed from the storage unit 28 or the like. Next, for each switch of the switch group 44 to be displayed that is assigned a function to be realized when pressed, the control unit 36 ​​draws an icon or character corresponding to the assigned function in a display area corresponding to the switch in the read image.

[0057] As an example, Fig. 7 shows a state in which an icon or character corresponding to an assigned function is drawn in the corresponding display area for each switch of switch group 44R, which is a switch group to be displayed, when ACC is on. Also, as an example, Fig. 10 shows a state in which an icon or character corresponding to an assigned function is drawn in the corresponding display area for each switch of switch group 44R, which is a switch group to be displayed, when ACC is off.

[0058] Next, the control unit 36 ​​combines the image generated by the above-described process (the image simulating the switch group 44 to be displayed) with other images to be displayed on the HUD 12 (for example, images showing the vehicle speed and the shift position shown in FIG. 7 ). Then, the control unit 36 ​​causes the HUD 12 to display the combined image.

[0059] In the next step 206, the control unit 36 ​​determines whether or not any of the switches in the group of switches 44 to be displayed has been touched by the user. If the determination in step 206 is negative, step 206 is repeated until the determination is positive. If the determination in step 206 is positive, the process proceeds to step 208. In step 208, the control unit 36 ​​inverts the icon or character displayed in the display area corresponding to the touched switch.

[0060] As an example, Fig. 7 shows an example in which, when ACC is on, the right switch 46C of the switch group 44R, which is the switch group to be displayed, is touched, and the character string "CANCEL" displayed in the display area corresponding to the right switch 46C is inverted. Also, as an example, Fig. 10 shows an example in which, when ACC is off, the upper switch 46A of the switch group 44R, which is the switch group to be displayed, is touched, and the character string "RES" displayed in the display area corresponding to the upper switch 46A is inverted. In this way, by inverting the display of the display area corresponding to the switch touched by the user, the user can recognize the position touched by the user.

[0061] In step 210, the control unit 36 ​​determines whether the switch touched by the user is further pressed by the user. For example, if the user releases his / her finger from the switch he / she touched without pressing the switch, the determination in step 210 is negative and the process returns to step 206. On the other hand, if the user further presses the switch he / she touched, the determination in step 210 is positive and the process proceeds to step 212.

[0062] In step 212, the control unit 36 ​​determines whether the switch pressed by the user is a switch for transitioning from an ACC ON state to an ACC OFF state. In this embodiment, the switch for transitioning from an ACC ON state to an ACC OFF state is the right switch 46C, which displays the character string "CANCEL" in the corresponding display area when the ACC is ON as shown in FIG. 7. The right switch 46C at this time is a one-way switch that can transition from a first state in which the ACC is ON to a second state in which the ACC is OFF when pressed for the first time, but cannot return from the second state in which the ACC is OFF to the first state in which the ACC is ON when pressed for the second or subsequent times. More specifically, the right switch 46C at this time is a one-way switch to which no function is assigned when pressed for the second or subsequent times.

[0063] Therefore, when the right switch 46C, which displays the character string "CANCEL" in the corresponding display area, is pressed in the state in which ACC is on as shown in Fig. 7, the determination in step 212 is affirmative, and the process proceeds to step 214. In step 214, the control unit 36 ​​displays the character string "CANCELED" indicating that the right switch 46C has been pressed once and the transition to the second state in which ACC is off has been completed in the display area above the area in the HUD 12 that displays the vehicle speed and the like (see character string 90 shown in Fig. 8). This allows the user to recognize, based on the character string "CANCELED" displayed on the HUD 12, that the second state in which ACC is off cannot be returned to the first state in which ACC is on even if the right switch 46C is pressed again.

[0064] Furthermore, in step 216, the control unit 36 ​​displays a circular first symbol 92 (see FIG. 8 ) indicating that the right switch 46C is a switch to which no function is assigned when pressed a second time or later, in a display region of the HUD 12 corresponding to the right switch 46C. This allows the user to recognize the operation when the right switch 46C is pressed two or more times, which transitions from the first state where the ACC is on to the second state where the ACC is off when pressed a first time, and which cannot be returned from the second state where the ACC is off to the first state where the ACC is on when pressed a second time or later.

[0065] After the process of step 216 is performed, the process proceeds to step 226, where the control unit 36 ​​determines whether or not a predetermined time has elapsed since the character string was displayed on the HUD 12 in step 214. The predetermined time in the determination in step 214 is, for example, about several seconds (2 seconds as one example). If the determination in step 226 is negative, step 226 is repeated until the determination is positive.

[0066] If the determination in step 226 is positive, the process proceeds to step 228. In step 228, the control unit 36 ​​erases the character string that was displayed on the HUD 12 in step 214 from the HUD 12 (see also FIG. 9). After the process in step 228 is performed, the process returns to step 200.

[0067] If the switch pressed by the user is not a switch for transitioning from the ACC ON state to the ACC OFF state, the determination in step 212 is negative and the process proceeds to step 218. In step 218, the control unit 36 ​​determines whether the switch pressed by the user is a switch for transitioning from the ACC OFF state to a state in which the ACC is activated at the previous setting (e.g., the previous set vehicle speed).

[0068] In this embodiment, the switch for transitioning from an ACC OFF state to a state in which ACC is activated with the previous set value is the upper switch 46A, which displays the character string "RES" in the corresponding display area when ACC is OFF as shown in FIG. 10. The upper switch 46A at this time is a one-way switch that can transition from a first state in which ACC is OFF to a second state in which ACC is activated with the previous set value when pressed for the first time, but cannot return from the second state in which ACC is activated with the previous set value to the first state in which ACC is OFF when pressed for the second or subsequent times. More specifically, the upper switch 46A at this time is a one-way switch to which a function other than the function of transitioning from the second state in which ACC is activated with the previous set value to the first state in which ACC is OFF, specifically, a function of increasing the set vehicle speed of the ACC, is assigned when pressed for the second or subsequent times.

[0069] Therefore, when the up switch 46A, which displays the character string "RES" in the corresponding display area, is pressed in the state in which the ACC is off as shown in Fig. 10, the determination in step 218 is affirmative, and the process proceeds to step 220. In step 220, the control unit 36 ​​displays the character string "RESUMED" in the display area above the area of ​​the HUD 12 that displays the vehicle speed and the like, indicating that the up switch 46A has been pressed once to complete the transition to the second state in which the ACC is activated with the previous set value (see character string 94 shown in Fig. 11). This allows the user to recognize, based on the character string "RESUMED" displayed on the HUD 12, that even if the up switch 46A is pressed again, the second state in which the ACC is activated with the previous set value cannot be returned to the first state in which the ACC is off.

[0070] Furthermore, in step 222, the control unit 36 ​​displays a second symbol 96 (see FIG. 11) in a display area of ​​the HUD 12 corresponding to the up switch 46A, which indicates that the up switch 46A is a switch assigned with a function of increasing the set vehicle speed of the ACC when pressed a second time or later. This allows the user to recognize the operation when the up switch 46A is pressed two or more times, which is to transition from a first state in which the ACC is off to a second state in which the ACC is activated with the previous set value when pressed a first time, and cannot return from the second state in which the ACC is activated with the previous set value to the first state in which the ACC is off when pressed a second time or later.

[0071] After performing the process of step 222, the process proceeds to step 226, where the control unit 36 ​​determines whether or not a predetermined time has elapsed since the character string was displayed on the HUD 12 in step 220. If the determination in step 226 is negative, step 226 is repeated until the determination in step 226 is positive. If the determination in step 226 is positive, the process proceeds to step 228. In step 228, the control unit 36 ​​erases the character string that was displayed on the HUD 12 in step 220 from the HUD 12 (see also FIG. 12). After performing the process of step 228, the process returns to step 200.

[0072] If the switch pressed by the user is not a switch for transitioning from an ACC OFF state to a state in which ACC is activated with the previous setting value, the determination in step 218 is negative and the process proceeds to step 224. Then, in step 224, the control unit 36 ​​performs a process corresponding to the other pressed switch.

[0073] Thus, in this embodiment, the control unit 36 ​​performs the following processing while displaying on the HUD 12 an image of a switch that transitions from the first state to the second state when pressed once and cannot be returned from the second state to the first state when pressed a second or subsequent time. That is, the control unit 36 ​​displays on the HUD 12 a character string indicating that the transition to the second state has been completed when a switch that cannot be returned from the second state to the first state when pressed a second or subsequent time is pressed once. This allows the user to recognize, based on the character string displayed on the HUD 12, that the second state cannot be returned to the first state even if the switch that was pressed to transition from the first state to the second state is further pressed.

[0074] In this embodiment, the switch that cannot be pressed a second time or later to return from the second state to the first state is a switch for transitioning from the first state in which the ACC is on to the second state in which the ACC is off. This allows the user to recognize that even if the switch that was pressed to transition from the ACC on state to the ACC off state is further pressed, the ACC off state cannot be returned to the ACC on state.

[0075] In this embodiment, the character string indicating that the transition to the second state has been completed is "CANCELED." This allows the user to intuitively recognize that the ACC cannot be returned from the OFF state to the ON state even if the pressed switch is pressed again.

[0076] In this embodiment, the switch that cannot be pressed a second time or later to return from the second state to the first state is a switch for transitioning from the first state in which the ACC is off to the second state in which the ACC is activated with the previous setting value. This allows the user to recognize that even if the switch that was pressed to transition from the ACC off state to the state in which the ACC is activated with the previous setting value is further pressed, the state in which the ACC is activated with the previous setting value cannot be returned to the ACC off state.

[0077] Furthermore, in this embodiment, the character string indicating that the transition to the second state has been completed is "RESUMED." This allows the user to intuitively recognize that the state in which the ACC is activated with the previous setting cannot be returned to the state in which the ACC is off, even if the pressed switch is pressed again.

[0078] In the present embodiment, the control unit 36 ​​erases the display of the character string indicating the completion of the transition to the second state after a predetermined time has elapsed since the character string was displayed on the HUD 12. This can reduce the nuisance of the display of the HUD 12, compared to a case in which the character string is displayed on the HUD 12 and then continued to be displayed.

[0079] In addition, in this embodiment, a HUD is used as the display device, which reduces the amount of line-of-sight movement required when a user views an image displayed on the display device from a state where the user is viewing the area ahead of the vehicle through the windshield, as compared to a case where the display device is a meter display.

[0080] In the above description, the first state is when the ACC is on and the second state is when the ACC is off, and the second state is when the ACC is off and the ACC is started with the previous setting. However, the first state and the second state in the present disclosure are not limited to the above states and may be other states.

[0081] In addition, in the above, we have described an example of "character strings indicating that the transition to the second state has been completed when the switch is pressed once," in which "CANCELED" and "RESUMED" are used; however, this is not limited to this, and other character strings may also be used.

[0082] Further, in the above, an embodiment in which HUD 12 is applied has been described as an example of a display device in the present disclosure, but the present disclosure is not limited to this, and the display device in the present disclosure may be another display such as a meter display.

[0083] Also, in the above description, the control program 34, which is an example of the vehicle display control program according to the present disclosure, is pre-stored (installed) in the storage unit 28. However, the vehicle display control program according to the present disclosure can also be provided in a form recorded on a non-transitory recording medium such as an HDD, SSD, or DVD. [Explanation of symbols]

[0084] 10 Vehicle display device 12 HUD 22 Display control ECU 34 Control Program 36 Control Unit 44R Right steering switch group 44R Left steering switch group 46A, 46B, 46C, 46D Switches 58A, 58B, 58C, 58D Switches 90 String 92 1st Symbol 94 String 96 Second Symbol

Claims

1. A plurality of switches disposed on a steering wheel of a vehicle; a display provided in a position separate from the steering wheel of the vehicle and configured to display information in a plurality of areas corresponding to the plurality of switches; Memory, a processor coupled to said memory for controlling information displayed on said display; Including, The processor, When a state of driving assistance of the vehicle is a first state, first information indicating a second state of driving assistance of the vehicle is displayed in a first area of ​​the display corresponding to a first switch of the plurality of switches; In response to the first switch being pressed, a character string indicating that a driving assistance state of the vehicle has transitioned to the second state is displayed in a predetermined area of ​​the display, and the display of the first information is erased. It is configured as follows: Vehicle display device.

2. 2. The display device for a vehicle according to claim 1, wherein the first switch is a switch for transitioning from the first state in which a cruise control is on to the second state in which the cruise control is off.

3. 3. The display device for a vehicle according to claim 2, wherein the character string is "CANCELED."

4. 2. The display device for a vehicle according to claim 1, wherein the first switch is a switch for transitioning from the first state, in which cruise control is off, to the second state, in which cruise control is activated with a previously set value.

5. 5. The display device for a vehicle according to claim 4, wherein the character string is "RESUMED".

6. The vehicle display device as described in claim 1, wherein the processor is configured to erase the display of the character string a predetermined time after displaying the character string in the specified area of ​​the display.

7. A vehicle display device as described in claim 1, wherein the display is a HUD.

8. The first switch is a one-way switch that can transition the driving assistance of the vehicle from the first state to the second state when pressed a first time, but cannot return the driving assistance of the vehicle from the second state to the first state when pressed a second or subsequent time, 2. The vehicle display device according to claim 1, wherein the processor is configured to display second information in the first area from which the display of the first information is erased, the second information allowing the user to recognize the operation performed when the first switch is pressed two or more times.

9. A method for controlling a display of a vehicle, comprising: The vehicle is a plurality of switches disposed on a steering wheel of the vehicle; A display provided in the vehicle at a position separate from the steering wheel; Including, the display displays information in a plurality of regions of the display, each region corresponding to a respective one of the plurality of switches; The vehicle display control method includes: The processor: When a state of driving assistance of the vehicle is a first state, first information indicating a second state of driving assistance of the vehicle is displayed in a first area of ​​the display corresponding to a first switch of the plurality of switches; In response to the first switch being pressed, a character string indicating that a driving assistance state of the vehicle has transitioned to the second state is displayed in a predetermined area of ​​the display, and the display of the first information is erased. A display control method for a vehicle.

10. A vehicle display control program for causing a computer to execute a vehicle display control process for a vehicle, comprising: The vehicle is a plurality of switches disposed on a steering wheel of the vehicle; A display provided in the vehicle at a position separate from the steering wheel; Including, the display displays information in a plurality of areas corresponding to the plurality of switches, The vehicular display control process includes: On the computer, When a state of driving assistance of the vehicle is a first state, first information indicating a second state of driving assistance of the vehicle is displayed in a first area of ​​the display corresponding to a first switch of the plurality of switches; In response to the first switch being pressed, a character string indicating that a driving assistance state of the vehicle has transitioned to the second state is displayed in a predetermined area of ​​the display, and the display of the first information is erased. A display control program for a vehicle, comprising:

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