Vehicle control method and display device

Abstract

To inhibit an occupant from touching a display installed in a vehicle.SOLUTION: A vehicle includes a transparent display disposed between a rear seat and a front seat. When an occupant in the rear seat is on board, the transparent display displays a first content. When getting-on or getting-off of the occupant in the rear seat occurs, the transparent display displays a second content different from the first content and increases a first light transmission rate of a first display region to a level higher than a second light transmission rate of a second display region located below the first display region.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present disclosure relates to a vehicle control method and a display device. [Background technology]

[0002] It is being considered to install a display inside a vehicle so that passengers in the rear seats can watch videos and the like. If passengers touch the display or put their weight on it, the display may become dirty or damaged. Therefore, it is desirable to prevent passengers from touching the display as much as possible.

[0003] Patent Document 1 discloses that a display is provided with a touch panel that detects contact, and when contact that does not correspond to normal operation is detected, a predetermined warning is displayed on the display. Patent Document 2 discloses that a camera recognizes the face of a person approaching the display, and when the person is recognized as a person subject to a warning, a predetermined warning is displayed on the display. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2013-16692 A [Patent Document 2] Patent Publication No. 2021-93083 Summary of the Invention [Problem to be solved by the invention]

[0005] In the technology of Patent Document 1, a warning is displayed after the display is touched, and it is not possible to prevent contact with the display in advance. In the technology of Patent Document 2, a warning is displayed when a person approaches the display, so in a relatively small space such as the inside of a car, where the distance between the occupant and the display is usually short, the warning is displayed unnecessarily.

[0006] An object of the present disclosure is to provide a technology that prevents occupants from touching a display installed inside a vehicle. [Means for solving the problem]

[0007] One aspect of the present disclosure is A first wheel connected to the vehicle body; A second wheel connected to the vehicle body; A third wheel connected to the vehicle body; and a fourth wheel connected to the vehicle body. A vehicle capable of running in a predetermined direction using the first wheel, the second wheel, the third wheel, and the fourth wheel, The vehicle body is A floor surface portion and a ceiling surface portion arranged along the predetermined direction; a left side surface portion that connects the floor surface portion and the ceiling surface portion and is disposed on the left side along the predetermined direction; a right side surface portion that connects the floor surface portion and the ceiling surface portion and is disposed on the right side along the predetermined direction; a front surface portion that connects the floor surface portion and the ceiling surface portion and is disposed in a front portion with respect to the predetermined direction; A rear surface portion that connects the floor surface portion and the ceiling surface portion and is disposed at the rear with respect to the predetermined direction; At least one front seat arranged on the floor surface portion closer to the front surface portion than the rear surface portion; At least one rear seat disposed on the floor surface portion toward the rear surface portion from the front surface portion; A transparent display having variable light transmittance is disposed between the rear seat and the front seat. A vehicle control method for the vehicle, comprising: When the rear seat passenger is in the vehicle, the transparent display displays a first content; When a passenger gets in or out of the rear seat, the transparent display displays a second content different from the first content, and makes a first light transmittance of a first display area greater than a second light transmittance of a second display area below the first display area. A method for controlling a vehicle is provided.

[0008] One aspect of the present disclosure is A first wheel connected to the vehicle body; A second wheel connected to the vehicle body; A third wheel connected to the vehicle body; and a fourth wheel connected to the vehicle body. A display device configured to be mounted on a vehicle capable of traveling in a predetermined direction using the first wheel, the second wheel, the third wheel, and the fourth wheel, The vehicle body is A floor surface portion and a ceiling surface portion arranged along the predetermined direction; a left side surface portion that connects the floor surface portion and the ceiling surface portion and is disposed on the left side along the predetermined direction; a right side surface portion that connects the floor surface portion and the ceiling surface portion and is disposed on the right side along the predetermined direction; a front surface portion that connects the floor surface portion and the ceiling surface portion and is disposed in a front portion with respect to the predetermined direction; A rear surface portion that connects the floor surface portion and the ceiling surface portion and is disposed at the rear with respect to the predetermined direction; At least one front seat arranged on the floor surface portion closer to the front surface portion than the rear surface portion; At least one rear seat disposed on the floor surface portion toward the rear surface portion from the front surface portion; A transparent display having a variable light transmittance is disposed between the rear seat and the front seat, When the rear seat passenger is in the vehicle, the transparent display displays a first content; When a passenger gets in or out of the rear seat, the transparent display displays a second content different from the first content, and makes a first light transmittance of a first display area greater than a second light transmittance of a second display area below the first display area. A display device is provided.

[0009] Furthermore, these comprehensive or specific aspects may be realized by a system, an apparatus, a method, an integrated circuit, a computer program, or a recording medium, or may be realized by any combination of a system, an apparatus, a method, an integrated circuit, a computer program, and a recording medium. Effect of the Invention

[0010] According to the present disclosure, it is possible to prevent occupants from touching a display installed inside the vehicle. [Brief description of the drawings]

[0011] [Figure 1] FIG. 1 is a plan view showing an example of the configuration of a vehicle according to a first embodiment, with the interior of the vehicle seen from above; [Diagram 2] FIG. 1 is a side view showing an example of the configuration of a vehicle according to a first embodiment, with the interior of the vehicle seen through from the side; [Diagram 3] FIG. 1 shows an example of the configuration of a vehicle according to a first embodiment, as viewed from the rear seat inside the vehicle. [Figure 4] FIG. 1 is a block diagram showing an example of a device provided in a vehicle according to a first embodiment; [Diagram 5] FIG. 1 is a schematic diagram showing an example of a first content according to the first embodiment; [Figure 6] FIG. 1 is a schematic diagram showing a video of a predetermined pattern as an example of a second content according to the first embodiment; [Figure 7] FIG. 1 is a schematic diagram showing an image of a swaying curtain as an example of a second content according to the first embodiment; [Figure 8] FIG. 1 is a schematic diagram showing an image of a water surface with waves, which is an example of a second content according to the first embodiment; [Figure 9] FIG. 1 is a schematic diagram showing an example of a video of a grassland rustling in the wind, which is an example of a second content according to the first embodiment; [Figure 10] FIG. 1 is a schematic diagram showing an image of a cactus as an example of a second content according to the first embodiment; [Figure 11] FIG. 1 is a schematic diagram showing an image of fish swimming in water, which is an example of a second content according to the first embodiment; [Figure 12]FIG. 1 is a schematic diagram showing an example of a video of moving clouds, which is an example of a second content according to the first embodiment; [Figure 13] A flowchart showing an example of a situation determination process according to the first embodiment. [Figure 14] A flowchart showing an example of a process B subsequent to the process shown in FIG. [Figure 15] A flowchart showing an example of boarding processing according to the first embodiment. [Figure 16] A flowchart showing an example of disembarking processing according to the first embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, the embodiments of the present disclosure will be described in detail with reference to the drawings as appropriate. However, more detailed description than necessary may be omitted. For example, detailed description of already well-known matters and duplicated description of substantially the same configuration may be omitted. This is to avoid the following description becoming unnecessarily redundant and to facilitate understanding by those skilled in the art. Note that the accompanying drawings and the following description are provided to enable those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims.

[0013] (Embodiment 1) <Vehicle configuration>

[0014] FIG. 1 shows a configuration example of a vehicle 1 according to the first embodiment, and is a plan view showing the interior of the vehicle from above. FIG. 2 shows a configuration example of a vehicle 1 according to the first embodiment, and is a side view showing the interior of the vehicle from the side. FIG. 3 shows a configuration example of a vehicle 1 according to the first embodiment, and is a view looking forward from a rear seat 22 inside the vehicle. Next, the configuration of the vehicle 1 will be described with reference to FIG. 1, FIG. 2, and FIG. 3.

[0015] For ease of explanation, as shown in Figures 1 and 2, the overall length direction of the vehicle 1 is the Y axis, the width direction of the vehicle 1 is the X axis, and the height direction of the vehicle 1 is the Z axis. For ease of explanation, the positive direction of the Z axis may be referred to as "up", the negative direction of the Z axis as "down", the positive direction of the Y axis as "front", the negative direction of the Y axis as "rear", the positive direction of the X axis as "right", and the negative direction of the X axis as "left". These expressions relating to directions are used for ease of explanation and are not intended to limit the position of the structure during actual use.

[0016] The vehicle 1 includes a vehicle body 2 and at least a first wheel 3A, a second wheel 3B, a third wheel 3C, and a fourth wheel 3D connected to the vehicle body 2, and can travel in a predetermined direction (for example, the direction of the Y axis) using the first wheel 3A, the second wheel 3B, the third wheel 3C, and the fourth wheel 3D. However, the vehicle 1 is not limited to a configuration including four wheels, and may be a configuration including two or three wheels, or five or more wheels. Furthermore, the vehicle 1 may be a private car, a commercial vehicle, a taxi, a truck, a bus, or the like.

[0017] The vehicle body 2 includes a floor surface portion 11 and a ceiling surface portion 12 arranged along a predetermined direction.

[0018] The vehicle body 2 includes a left side surface portion 13 that connects the floor surface portion 11 and the ceiling surface portion 12 and is disposed on the left side along a predetermined direction, and a right side surface portion 14 that connects the floor surface portion 11 and the ceiling surface portion 12 and is disposed on the right side along a predetermined direction.

[0019] The vehicle body 2 comprises a front surface portion 16 which connects the floor surface portion 11 and the ceiling surface portion 12 and is disposed at the front portion 15 in a predetermined direction, and a rear surface portion 18 which connects the floor surface portion 11 and the ceiling surface portion 12 and is disposed at the rear portion 17 in a predetermined direction.

[0020] The vehicle body 2 has at least one front seat 21 arranged on the floor surface 11 closer to the front surface 16 than the rear surface 18, and at least one rear seat 22 arranged on the floor surface 11 closer to the rear surface 18 than the front surface 16.

[0021] The front portion 16 is provided with a glass windshield 4 that allows the outside of the vehicle to be viewed in a predetermined direction from the front seats 21.

[0022] The vehicle body 2 further includes a rectangular transparent display 100 between the rear seat 22 and the front seat 21. The transparent display 100 can change the light transmittance of any region. Examples of the transparent display 100 include an organic EL display and an LED display. For example, the transparent display 100 has a configuration in which a liquid crystal shutter capable of controlling the light transmittance is superimposed on a self-luminous display panel having light transmissivity (for example, an organic EL panel). The transparent display 100 brings the light transmittance of the liquid crystal shutter corresponding to the region to be closer to transparency closer to 100%, and brings the light transmittance of the liquid crystal shutter corresponding to the region to be closer to light-shielding closer to 0%. In this way, the transparent display 100 can bring any region closer to transparency or closer to light-shielding.

[0023] When the transparent display 100 is in the transparent state, a passenger sitting in the rear seat 22 can see the outside of the vehicle through the transparent display 100 and the front window 4.

[0024] The transparent display 100 is set to play a predetermined content. The content may be either a moving image or a still image. The content may also be interpreted as a video. Passengers in the rear seat 22 can view the content displayed on the transparent display 100.

[0025] The vehicle 1 includes an operation unit 102 located near the rear seat 22 inside the vehicle. The operation unit 102 may be a tablet terminal installed inside the vehicle. Alternatively, the operation unit 102 may be a smartphone carried by a passenger and connected to the vehicle 1 by wire or wirelessly. Alternatively, the operation unit 102 may be a remote control for operating the IVI device 114 (see FIG. 4).

[0026] The transparent display 100 provided between the rear seat 22 and the front seat 21 may be soiled or damaged by a passenger who is getting into the rear seat 22 or getting off from the rear seat 22. In this embodiment, a technique for preventing a passenger who is getting into the rear seat 22 or getting off from the rear seat 22 from touching the transparent display 100 provided between the rear seat 22 and the front seat 21 will be described. In the following description, a passenger who is getting into the rear seat 22 or getting off from the rear seat 22 will be referred to as a rear seat passenger.

[0027] <Device configuration> FIG. 4 is a block diagram showing an example of a device included in the vehicle 1 according to the first embodiment. FIG. 5 is a schematic diagram showing an example of the first content 301 according to the first embodiment. FIG. 6 is a schematic diagram showing an image of a predetermined pattern, which is an example of the second content 302 according to the first embodiment. FIG. 7 is a schematic diagram showing an image of a swaying curtain, which is an example of the second content 302 according to the first embodiment. FIG. 8 is a schematic diagram showing an image of a water surface with waves, which is an example of the second content 302 according to the first embodiment. FIG. 9 is a schematic diagram showing an example of an image of a grassland swaying in the wind, which is an example of the second content 302 according to the first embodiment. FIG. 10 is a schematic diagram showing an image of a cactus, which is an example of the second content 302 according to the first embodiment. FIG. 11 is a schematic diagram showing an image of fish swimming in water, which is an example of the second content 302 according to the first embodiment. FIG. 12 is a schematic diagram showing an example of an image of clouds moving, which is an example of the second content 302 according to the first embodiment.

[0028] 4, the vehicle 1 includes a communication device 111, a vehicle control device 112, a seating detection device 113, an IVI device 114, an image control device 115, and a transparent display 100. The communication device 111, the vehicle control device 112, the seating detection device 113, the IVI device 114, and the image control device 115 can transmit and receive information to and from each other via an in-vehicle network 110. Examples of the in-vehicle network 110 include a Controller Area Network (CAN), a Local Interconnect Network (LIN), and FlexRay.

[0029] The communication device 111 is a device that performs wireless communication with other devices (e.g., a server or a smartphone) through a predetermined communication network. Examples of the communication network include a mobile communication network (e.g., LTE, 4G, 5G, 6G, etc.), Wi-Fi (registered trademark), Bluetooth (registered trademark), etc.

[0030] The vehicle control device 112 is a device that controls the behavior of the vehicle 1. For example, the vehicle control device 112 controls starting and stopping of the vehicle 1, opening and closing of doors, turning on and off headlights, etc. The vehicle control device 112 also provides information indicating the state of the vehicle 1, such as starting and stopping, opening and closing of doors, and turning on and off headlights. The vehicle control device 112 also provides an illuminance value measured by an illuminance sensor (not shown) for measuring illuminance outside or inside the vehicle.

[0031] The seating detection device 113 is a device for detecting whether or not an occupant is seated in each seat. For example, the seating detection device 113 may detect whether or not an occupant is seated in the seat by a weight sensor provided in the seat. Alternatively, the seating detection device 113 may detect whether or not an occupant is seated in the seat by whether or not a seat belt of the seat is fastened. Alternatively, the seating detection device 113 may detect whether or not an occupant is seated in the seat by performing a person detection process at the position of the seat from an image captured by a camera (not shown) installed in the vehicle.

[0032] The IVI device 114 is a device that provides information about the vehicle 1 and entertainment. IVI is an abbreviation for In-Vehicle Infotainment. For example, the IVI device 114 outputs music and video from a car audio, an in-vehicle DVD, a TV tuner, a radio, VOD, or the like. The IVI device 114 may be interpreted as a control unit or an Electronic Control Unit (ECU). The IVI device 114 may also include a processor, a memory, and the like.

[0033] The IVI device 114 searches for and outputs a route to the destination. The IVI device 114 may search for the route to the destination using built-in map data, or may cause an external device to search for the route to the destination via the communication device 111, and may acquire and output the search result. In addition, the route to the destination may be displayed as navigation for the driver, or may be used as an automatic driving plan for the vehicle 1.

[0034] The IVI device 114 cooperates with the video control device 115 to control the display of content on the transparent display 100. The display of content according to this embodiment will be described later.

[0035] The video control device 115 controls the display of content on the transparent display 100. The content may be either a still image or a moving image. The video control device 115 can also control the light transmittance of any region of the transparent display 100. The video control device 115 may control the display of content on the transparent display 100 and the transmittance of any region under the control of the IVI device 114. The video control device 115 and the transparent display 100 may be collectively referred to as a display device. Alternatively, the IVI device 114, the video control device 115, and the transparent display 100 may be collectively referred to as a display device.

[0036] While the passengers in the rear seats 22 are aboard the vehicle, the transparent display 100 displays (plays) a first content 301 as shown in Fig. 5. The first content 301 is, for example, entertainment content for entertaining the passengers in the rear seats 22, or relaxation content for relaxing the passengers in the rear seats 22.

[0037] When a passenger in the rear seat 22 gets on or off the vehicle, the transparent display 100 displays a second content 302 different from the first content 301, and sets a first light transmittance of the first display area 311 to be larger than a second light transmittance of a second display area 312 (see FIG. 6) below the first display area 311 (see FIG. 6). The second content 302 may be displayed in the second display area 312. However, the second content 302 may be displayed across the first display area 311 and the second display area 312. The first content 301 may be displayed larger than the second content 302. However, the first content 301 may be displayed smaller than the second content 302. The second content 302 is a content that, when displayed on the transparent display 100, reduces the possibility that a passenger getting on or off the rear seat will touch the transparent display 100.

[0038] For example, the transparent display 100 displays, as the second content 302, an image showing a predetermined pattern as shown in Fig. 6. For example, the transparent display 100 displays, as the second content 302, at least one of an image of a swaying curtain as shown in Fig. 7, an image of a water surface with waves as shown in Fig. 8, or an image of a grassland swaying in the wind as shown in Fig. 9. For example, the transparent display 100 may display, as the second content 302, at least one of an image of a cactus as shown in Fig. 10, an image of fish swimming in water as shown in Fig. 11, or an image of moving clouds as shown in Fig. 12.

[0039] 6 to 12 give the passengers in the rear seats an impression that it is difficult to place their hands on the transparent display 100 and put their weight on it (lean on it). Therefore, by displaying such an image on the transparent display 100 as the second content 302, the passengers in the rear seats can be prevented from placing their hands on the transparent display 100 to keep their posture balanced. This reduces the possibility of the transparent display 100 becoming dirty or damaged.

[0040] 6, the first display region 311 may be, for example, at least ¼ of the area from top to bottom of the transparent display 100. The first light transmittance may be a transmittance (for example, transparent) that allows the passenger to see the scenery outside the vehicle through the transparent display 100 and the front window 4. This allows the passengers getting on and off the rear seats to see the scenery inside and outside the vehicle at eye level, making it easier for them to maintain their posture balance and preventing them from losing their posture balance and putting their hands on the transparent display 100.

[0041] 6, the second display region 312 may be, for example, at least ¼ of the area of ​​the transparent display 100 from bottom to top. The second light transmittance may be a transmittance (for example, non-transparent or light-shielding) that allows the second content 302 to be clearly visible. This increases the likelihood that rear seat passengers will see the image of the second content 302 displayed in the second display region 312 and hesitate to touch the transparent display 100, thereby preventing the rear seat passengers from consciously or unconsciously touching the transparent display 100.

[0042] 3 and 6, when rear seat passengers get on or off the vehicle, the transparent display 100 may display information indicating the position of the handrail 31 in the second content 302. This increases the likelihood that the rear seat passengers will recognize the position of the handrail 31 and hold on to the handrail 31, thereby reducing the likelihood that the rear seat passengers will put their hands on the transparent display 100.

[0043] As shown in Fig. 3 and Fig. 6, at least a part of the second content 302 may provide a function of lighting 303. The function of lighting 303 may be provided when the illuminance outside and / or inside the vehicle is equal to or lower than a predetermined threshold. For example, the transparent display 100 provides the function of lighting 303 by displaying white or a color with high brightness and saturation in at least a part of the second content 302. As a result, the function of lighting 303 brightens the area around the feet, making it easier for rear seat passengers to maintain their balance, and it is possible to prevent the rear seat passengers from losing their balance and putting their hands on the transparent display 100.

[0044] When an occupant in the rear seat 22 gets on or off, the transparent display 100 may display a message 304 for the occupant in the rear seat 22 in the second content 302. The message 304 for getting on and the message 304 for getting off may be different.

[0045] The following are examples of the boarding message 304: Note that one boarding message 304 may be displayed, or multiple boarding messages 304 may be displayed. - Greeting messages such as "Good morning" or "Good evening" depending on the current time - Messages that include the crew member's name, such as "Hello Mr. / Ms." - Messages to warn you, such as "Watch your step!" - A thank you message such as "Thank you for always riding with us" - Messages showing the passenger's upcoming schedule and traffic information, such as "It will take 30 minutes to reach the destination. There is no traffic jam." - Messages encouraging relaxation, such as "Please take your time" - Messages indicating the vehicle's destination, such as "This vehicle is heading in the direction of X."

[0046] Examples of the message 304 for getting off the train include the following: Note that one or more messages 304 for getting off the train may be displayed. - A message to inform passengers of their arrival, such as "We have arrived at our destination" - Messages including the crew member's name, such as "We have arrived at Mr. / Ms. X's home" - Messages indicating the crew's upcoming plans, such as "The plan at this destination is to have dinner with Mr. / Ms." - Messages to warn you, such as "Watch your step!" Weather messages such as "It's raining outside" Thank you messages such as "Please use us again"

[0047] <Processing flow> FIG. 13 is a flowchart illustrating an example of a situation determination process according to the first embodiment.

[0048] The IVI device 114 determines whether or not the schedule information of the rear seat passengers has been acquired (S101). For example, if the rear seat passengers give permission, the IVI device 114 acquires the schedule information of the rear seat passengers via the communication device 111 from a predetermined server or cloud service that manages the schedule information of the rear seat passengers.

[0049] If the schedule information of the rear seat passengers cannot be acquired (S101: NO), the process proceeds to process B shown in Fig. 14. If the schedule information of the rear seat passengers can be acquired (S101: YES), the following process is performed.

[0050] The IVI device 114 acquires at least one of the planned boarding location and planned boarding time of the rear seat passengers and the planned disembarking location and planned disembarking time from the acquired schedule information (S102). For example, when a departure point and a destination are registered in the schedule information, the IVI device 114 sets the departure point as the planned boarding location and the destination as the planned disembarking location. For example, when a departure time and an arrival time are registered in the schedule information, the IVI device 114 sets the departure time as the planned boarding time and the arrival time as the planned disembarking time.

[0051] The IVI device 114 acquires the current location and the current time of the vehicle 1 (S103). For example, the IVI device 114 identifies the current location and the current time of the vehicle 1 from a car navigation system.

[0052] The IVI device 114 checks at least one of the planned boarding location and planned boarding time and the planned disembarking location and planned disembarking time acquired in step S101 against the current location and current time of the vehicle 1 acquired in step S103, and identifies the current situation of the vehicle 1 (S104). For example, (a) if the current location of the vehicle 1 is before the planned boarding location, or if the current time is before the planned boarding time, the IVI device 114 identifies the current situation of the vehicle 1 as "before planned boarding". For example, (b) if the current location of the vehicle 1 is between the planned boarding location and the planned disembarking location, or if the current time is between the planned boarding time and the planned disembarking time, the IVI device 114 identifies the current situation of the vehicle 1 as "between boarding and disembarking". For example, if neither (a) nor (b) above applies, the IVI device 114 identifies the current situation of the vehicle 1 as "after planned disembarking or no plan".

[0053] When the current situation of the vehicle 1 is identified as "after disembarking plan or no plan" in step S104, the process proceeds to process B shown in FIG.

[0054] If the current status of the vehicle 1 is determined to be "before boarding is scheduled" in step S104, the following process is performed. That is, the IVI device 114 determines whether the vehicle 1 has arrived at the planned boarding location (S111). If the IVI device 114 determines that the vehicle 1 has arrived at the planned boarding location (S111: YES), it executes boarding process (S112) and returns the process to step S101. Details of the boarding process will be described later (see FIG. 15). If the IVI device 114 determines that the vehicle 1 has not arrived at the planned boarding location (S111: NO), it returns the process to step S101.

[0055] If the current status of the vehicle 1 is determined to be "between getting on and getting off" in step S104, the following process is performed. That is, the IVI device 114 determines whether the vehicle 1 has arrived at the planned disembarking position (S121). If the IVI device 114 determines that the vehicle 1 has arrived at the planned disembarking position (S121: YES), it executes disembarking processing (S112) and returns the process to step S101. The disembarking processing will be described in detail later (see FIG. 16). If the IVI device 114 determines that the vehicle 1 has not arrived at the planned disembarking position (S121: NO), it returns the process to step S101.

[0056] FIG. 14 is a flowchart showing an example of a process B subsequent to the process shown in FIG.

[0057] The IVI device 114 determines whether or not an occupant is seated in the rear seat 22 based on the detection result by the seating detection device 113 (S130).

[0058] If it is determined in step S130 that no passenger is seated in the rear seat 22 (S130: NO), the following process is carried out.

[0059] The IVI device 114 determines whether or not the vehicle 1 is stopped based on the information obtained from the vehicle control device 112 (S131). For example, the IVI device 114 determines that the vehicle 1 is stopped when the speed of the vehicle 1 is 0, the shift lever is in park, and / or the parking brake is on.

[0060] When it is determined that the vehicle 1 is not stopped (S131: NO), the IVI device 114 returns the process to process A (that is, step S101) shown in FIG.

[0061] When it is determined that the vehicle 1 is stopped (S131: YES), the IVI device 114 determines whether the rear door 23 (see FIG. 3) is open or not based on the information obtained from the vehicle control device (S132).

[0062] When it is determined that the rear seat door 23 is not open (S132: NO), the IVI device 114 returns the process to process A (that is, step S101) shown in FIG.

[0063] When it is determined that the rear door 23 is open (S132: YES), the IVI device 114 executes the boarding process (S133) and returns the process to the process A (i.e., step S101) shown in Fig. 13. The boarding process will be described in detail later (see Fig. 15).

[0064] In other words, when the vehicle 1 stops and the rear door 23 opens with no passenger seated in the rear seat 22, the IVI device 114 determines that a passenger will board the rear seat 22 and executes boarding processing.

[0065] If it is determined in step S130 that an occupant is seated in the rear seat 22 (S130: YES), the following process is carried out.

[0066] The IVI device 114 determines whether the vehicle 1 is stopped or not based on the information obtained from the vehicle control device 112 (S141).

[0067] When it is determined that the vehicle 1 is not stopped (S141: NO), the IVI device 114 returns the process to process A (that is, step S101) shown in FIG.

[0068] When it is determined that the vehicle 1 is stopped (S141: YES), the IVI device 114 determines whether or not the rear door 23 is open based on the information obtained from the vehicle control device (S132).

[0069] When it is determined that the rear seat door 23 is not open (S142: NO), the IVI device 114 returns the process to process A (that is, step S101) shown in FIG.

[0070] When it is determined that the rear door 23 is open (S142: YES), the IVI device 114 executes the disembarking process (S143) and returns the process to the process A (i.e., step S101) shown in Fig. 13. The disembarking process will be described in detail later (see Fig. 16).

[0071] In other words, when the vehicle 1 stops and the rear door 23 opens while a passenger is seated in the rear seat 22, the IVI device 114 determines that the passenger in the rear seat 22 is getting out of the vehicle and executes the getting out process.

[0072] <Ride Processing Flow> 15 is a flowchart showing an example of the boarding process according to Embodiment 1. The boarding process is called in step S112 shown in FIG. 13 or step S133 shown in FIG.

[0073] The IVI device 114 stops playing the first content 301 on the transparent display 100 (S201).

[0074] The IVI device 114 makes the first light transmittance of the first display area 311 of the transparent display 100 greater than the second light transmittance of the second display area 312. For example, the IVI device 114 makes the first display area 311 of the transparent display 100 transparent (S202).

[0075] The IVI device 114 displays, as the second content, a message 304 for boarding and the position of the handrail 31 on the transparent display 100 (S203).

[0076] The IVI device 114 determines whether it is dark outside or inside the vehicle (S204). For example, the IVI device 114 determines that it is dark when an illuminance value measured by an illuminance sensor installed outside or inside the vehicle is less than a predetermined threshold, and determines that it is bright when the illuminance value is equal to or greater than the threshold. Alternatively, the IVI device 114 determines that it is dark when the headlights of the vehicle 1 are on, and determines that it is bright when the headlights are off. The headlights may be switched on and off manually by the driver, or automatically based on the illuminance value measured by the illuminance sensor. Alternatively, the IVI device 114 may determine that it is dark (i.e., it is night) when the current time is within a preset nighttime period, and may determine that it is bright (i.e., it is not night) when the current time is not within the nighttime period.

[0077] If it is determined that the outside or inside of the vehicle is bright (S204: NO), the IVI device 114 displays the image of the second content 302 in a brighter light in the second display area 312 (e.g., a light-shielded area) of the transparent display 100 (S205). Then, the process proceeds to step S210.

[0078] If it is determined that the outside or inside of the vehicle is dark (S204: YES), the IVI device 114 turns on the function of the lighting 303 as the second content 302 (S206). Then, the IVI device 114 displays the image of the second content 302 in a darker manner in the second display area 312 (e.g., a light-shielding area) of the transparent display 100 (S207). Then, the process proceeds to step S210.

[0079] In step S210, the IVI device 114 determines whether or not the occupant has completed boarding in the rear seat 22 (S210). For example, when the IVI device 114 detects, from information obtained from the vehicle control device 112, that the open rear seat door 23 has been closed, the IVI device 114 determines that the occupant has completed boarding in the rear seat 22. For example, when the seating detection device 113 detects that the occupant is seated in the rear seat 22, the IVI device 114 determines that the occupant has completed boarding in the rear seat 22. For example, when the seating detection device 113 detects that the seat belt of the rear seat 22 is fastened, the IVI device 114 determines that the occupant has completed boarding in the rear seat.

[0080] When it is determined that the occupant has not yet boarded the rear seat 22 (S210: NO), the IVI device 114 repeats the process of step S210. When it is determined that the occupant has boarded the rear seat 22 (S210: YES), the following process is performed.

[0081] The IVI device 114 hides the second content 302 being displayed on the transparent display 100 (S211).

[0082] The IVI device 114 returns the transparent state of the transparent display 100 to the original state when the first content 301 was being played back (S212).

[0083] The IVI device 114 resumes the playback of the first content 301 on the transparent display 100 (S213).

[0084] Then, this boarding process is completed, and the process returns to the caller's process (the process after step S112 in FIG. 13 or step S133 in FIG. 14).

[0085] <Disembarkation process flow> 16 is a flowchart showing an example of the disembarking process according to Embodiment 1. The disembarking process is called in step S122 shown in FIG. 13 or step S143 shown in FIG.

[0086] The IVI device 114 stops playing the first content 301 on the transparent display 100 (S301).

[0087] The IVI device 114 makes the first light transmittance of the first display area 311 of the transparent display 100 greater than the second light transmittance of the second display area 312. For example, the IVI device 114 makes the first display area of ​​the transparent display 100 transparent (S302).

[0088] The IVI device 114 displays, as the second content 302, a message 304 for getting off the vehicle and the position of the handrail 31 on the transparent display (S303).

[0089] The IVI device 114 determines whether it is dark outside or inside the vehicle (S304).

[0090] If it is determined that the outside or inside of the vehicle is bright (S304: NO), the IVI device 114 displays the image of the second content 302 brightly in the second display area 312 (e.g., a light-shielding area) of the transparent display 100 (S305). Note that the image of the second content 302 when getting off the vehicle may be the same as or different from the image of the second content 302 when getting on. Then, the process proceeds to step S310.

[0091] If it is determined that the outside or inside of the vehicle is dark (S304: YES), the IVI device 114 turns on the function of the lighting 303 as the second content 302 (S206). Then, the IVI device 114 displays the image of the second content 302 in a darker manner in the second display area 312 (e.g., a light-shielding area) of the transparent display 100 (S207). Then, the process proceeds to step S310.

[0092] In step S310, the IVI device 114 determines whether or not the occupant has finished disembarking from the rear seat 22 (S210). For example, when the IVI device 114 detects, from information obtained from the vehicle control device 112, that the open rear seat door 23 has been closed, the IVI device 114 determines that the occupant has finished disembarking from the rear seat 22. For example, when the seating detection device 113 changes from a detected state to a non-detected state of the seating of the rear seat 22, the IVI device 114 determines that the occupant has finished disembarking from the rear seat 22. For example, when the seating detection device 113 detects that the seat belt of the rear seat 22 has changed from fastened to unfastened, the IVI device 114 determines that the occupant has finished disembarking from the rear seat 22.

[0093] If it is determined that the occupant has not yet exited the rear seat 22 (S310: NO), the IVI device 114 repeats the process of step S310. If it is determined that the occupant has exited the rear seat 22 (S310: YES), the following process is performed.

[0094] The IVI device 114 hides the second content 302 being displayed on the transparent display 100 (S311).

[0095] The IVI device 114 returns the transparent state of the transparent display 100 to the original state when the first content 301 was being played back (S312).

[0096] The IVI device 114 resumes the playback of the first content 301 on the transparent display 100 (S313).

[0097] Then, this disembarking process is completed, and the process returns to the caller's process (the process after step S122 in FIG. 13 or step S143 in FIG. 14).

[0098] (Summary of the first embodiment) The above description of the first embodiment discloses the following techniques.

[0099] <Technology 1> The vehicle 1 has at least a first wheel 3A connected to a vehicle body 2, a second wheel 3B connected to the vehicle body 2, a third wheel 3C connected to the vehicle body 2, and a fourth wheel 3D connected to the vehicle body 2, and is capable of running in a predetermined direction using the first wheel 3A, the second wheel 3B, the third wheel 3C, and the fourth wheel 3D. The vehicle body 2 comprises a floor surface portion 11 and a ceiling surface portion 12 arranged along the specified direction, a left side portion 13 connecting the floor surface portion 11 and the ceiling surface portion 12 and arranged on the left side along the specified direction, a right side portion 14 connecting the floor surface portion 11 and the ceiling surface portion 12 and arranged on the right side along the specified direction, a front surface portion 16 connecting the floor surface portion 11 and the ceiling surface portion 12 and arranged on a front portion 15 with respect to the specified direction, a rear surface portion 18 connecting the floor surface portion 11 and the ceiling surface portion 12 and arranged on a rear portion 17 with respect to the specified direction, at least one front seat 21 arranged on the floor surface portion 11 closer to the front surface portion 16 than the rear surface portion side, at least one rear seat 22 arranged on the floor surface portion 11 closer to the rear surface portion 18 than the front surface portion 16, and a transparent display 100 arranged between the rear seat 22 and the front seat 21 and having variable light transmittance. As a vehicle control method in the vehicle 1, while an occupant in the rear seat 22 is on board, the transparent display 100 displays a first content 301, and when the occupant in the rear seat 22 gets on or off the vehicle, the transparent display 100 displays a second content 302 different from the first content 301, and makes a first light transmittance of a first display area 311 greater than a second light transmittance of a second display area 312 below the first display area 311. This allows rear seat passengers to see the outside or inside of the vehicle through the first display area 311, which has a relatively high light transmittance, of the transparent display 100, making it easier for them to maintain their balance and preventing them from losing their balance and putting their hands on the transparent display 100.

[0100] <Technology 2> In the vehicle control method described in Technique 1, the second content is displayed in the second display area. As a result, the second content 302 is displayed in the second display area 312, which has a relatively low light transmittance, so that the second content 302 can be clearly seen by passengers in the rear seats.

[0101] <Technology 3> In the vehicle control method according to the first or second technique, at least a part of the second content 302 provides a function of lighting 303 . As a result, the area under the feet of rear seat passengers is illuminated and brightened by the function of the lighting 303, making it easier for the rear seat passengers to maintain their balance and preventing them from losing their balance and putting their hands on the transparent display 100.

[0102] <Technology 4> In the vehicle control method according to Technique 3, the function of the lighting 303 is provided when the illuminance outside and / or inside the vehicle is equal to or lower than a predetermined threshold. As a result, when it is relatively dark outside and / or inside the vehicle, the lighting 303 functions to illuminate the feet of rear seat passengers.

[0103] <Technology 5> In the vehicle control method described in any one of Techniques 1 to 4, when an occupant in the rear seat 22 gets in or out of the vehicle, the transparent display 100 displays a message 304 in the second content 302 addressed to the occupant in the rear seat 22. This allows rear seat passengers to see the message 304 displayed on the transparent display 100.

[0104] <Technology 6> In the vehicle control method described in any one of Techniques 1 to 5, when an occupant in the rear seat 22 gets in or out of the vehicle, the transparent display 100 displays information indicating the position of the handrail 31 in the second content 302. This increases the likelihood that rear seat passengers will grab hold of the handrail 31, and prevents the rear seat passengers from touching the transparent display 100 consciously or unconsciously.

[0105] <Technology 7> In the vehicle control method according to any one of the first to sixth techniques, when an occupant of the rear seat 22 gets in or out of the vehicle, the transparent display 100 displays a predetermined pattern in the second content 302. This allows rear seat passengers to view the transparent display 100 displaying a predetermined pattern as the second content 302, thereby preventing the rear seat passengers from consciously or unconsciously touching the transparent display 100.

[0106] <Technology 8> In the vehicle control method described in any one of Techniques 1 to 6, when an occupant in the rear seat 22 gets in or out of the vehicle, the transparent display 100 displays at least one of a fluttering curtain, a wavy water surface, and a grassland swaying in the wind in the second content 302. Such second content 302 gives the rear seat passengers an impression that it is difficult to lean on it, and therefore can prevent the rear seat passengers from placing their hands on the transparent display 100 and leaning on it.

[0107] <Technology 9> In a vehicle control method described in any one of Techniques 1 to 8, the vehicle 1 is equipped with a control unit (e.g., an IVI device 114), and the control unit determines whether an occupant in the rear seat 22 has gotten in or out of the vehicle based on schedule information of the occupant in the rear seat 22. This makes it possible to distinguish between passengers who are about to board and passengers who are about to disembark.

[0108] <Technology 10> In the vehicle control method according to any one of the first to ninth techniques, after the passenger in the rear seat 22 has completed getting in or out of the vehicle, the transparent display 100 resumes displaying the first content 301. This allows the transparent display 100 to switch the display from the first content 301 to the second content 302, and resume displaying the first content 301 after the passenger has completed getting on or off the vehicle.

[0109] <Technology 11> The vehicle 1 includes at least a first wheel 3A connected to a vehicle body 2, a second wheel 3B connected to the vehicle body 2, a third wheel 3C connected to the vehicle body 2, and a fourth wheel 3D connected to the vehicle body 2, and can travel in a predetermined direction using the first wheel 3A, the second wheel 3B, the third wheel 3C, and the fourth wheel 3D. The display device is configured to be mounted on the vehicle 1. The vehicle body 2 comprises a floor surface portion 11 and a ceiling surface portion 12 arranged along the specified direction, a left side portion 13 connecting the floor surface portion 11 and the ceiling surface portion 12 and arranged on the left side along the specified direction, a right side portion 14 connecting the floor surface portion 11 and the ceiling surface portion 12 and arranged on the right side along the specified direction, a front surface portion 16 connecting the floor surface portion 11 and the ceiling surface portion 12 and arranged on a front portion 15 with respect to the specified direction, a rear surface portion 18 connecting the floor surface portion 11 and the ceiling surface portion 12 and arranged on a rear portion 17 with respect to the specified direction, at least one front seat 21 arranged on the floor surface portion 11 closer to the front portion 16 than the rear surface portion 18, at least one rear seat 22 arranged on the floor surface portion 11 closer to the rear portion 18 than the front portion 16, and a transparent display 100 arranged between the rear seat 22 and the front seat 21 and having variable light transmittance. As a display device, while an occupant in the rear seat 22 is on board, the transparent display 100 displays a first content 301, and when the occupant in the rear seat 22 gets on or off, the transparent display 100 displays a second content 302 different from the first content 301, and makes a first light transmittance of a first display area 311 greater than a second light transmittance of a second display area 312 below the first display area 311. This allows rear seat passengers to see the outside or inside of the vehicle through the first display area 311, which has a relatively high light transmittance, of the transparent display 100, making it easier for them to maintain their balance and preventing them from losing their balance and putting their hands on the transparent display 100.

[0110] <Technology 12> In the display device according to Technique 11, the second content is displayed in the second display area. As a result, the second content 302 is displayed in the second display area 312, which has a relatively low light transmittance, so that the second content 302 can be clearly seen by passengers in the rear seats.

[0111] <Technology 13> In the display device according to Technique 11 or 12, at least a part of the second content 302 provides a function of lighting 303. As a result, the area under the feet of rear seat passengers is illuminated and brightened by the function of the lighting 303, making it easier for the rear seat passengers to maintain their balance and preventing them from losing their balance and putting their hands on the transparent display 100.

[0112] <Technology 14> In the display device according to technique 13, the function of the illumination 303 is provided when the illuminance outside and / or inside the vehicle is below a predetermined threshold. As a result, when it is relatively dark outside and / or inside the vehicle, the lighting 303 functions to illuminate the feet of rear seat passengers.

[0113] <Technology 15> In a display device described in any one of Techniques 11 to 14, when an occupant in the rear seat 22 gets in or out of the vehicle, the transparent display 100 displays a message 304 in the second content 302 addressed to the occupant in the rear seat 22. This allows rear seat passengers to see the message 304 displayed on the transparent display 100.

[0114] <Technology 16> In a display device described in any one of Techniques 11 to 15, when a passenger in the rear seat 22 gets on or off the vehicle, the transparent display 100 displays information indicating the position of the handrail 31 in the second content 302. This increases the likelihood that rear seat passengers will grab hold of the handrail 31, and prevents the rear seat passengers from touching the transparent display 100 consciously or unconsciously.

[0115] <Technology 17> In the display device according to any one of Techniques 11 to 16, when an occupant of the rear seat 22 gets in or out of the vehicle, the transparent display 100 displays a predetermined pattern in the second content 302. This allows rear seat passengers to view the transparent display 100 displaying a predetermined pattern as the second content 302, thereby preventing the rear seat passengers from consciously or unconsciously touching the transparent display 100.

[0116] <Technology 18> In the display device described in any one of Techniques 11 to 16, when a passenger in the rear seat 22 gets in or out of the vehicle, the transparent display 100 displays at least one of a fluttering curtain, a wavy water surface, and a grassland swaying in the wind in the second content. Such second content 302 gives the rear seat passengers an impression that it is difficult to lean on it, and therefore can prevent the rear seat passengers from placing their hands on the transparent display 100 and leaning on it.

[0117] <Technology 19> In the display device described in any one of Techniques 11 to 18, the vehicle 1 is equipped with a control unit (e.g., an IVI device 114), and the control unit determines whether the rear seat occupant has gotten in or out of the vehicle based on schedule information of the rear seat 22 occupant. This makes it possible to distinguish between passengers who are about to board and passengers who are about to disembark.

[0118] <Technology 20> In the display device according to any one of Techniques 11 to 19, after the passengers in the rear seats 22 have completed getting in or out of the vehicle, the transparent display 100 resumes displaying the first content 301. This allows the transparent display 100 to switch the display from the first content 301 to the second content 302, and resume displaying the first content 301 after the passenger has completed getting on or off the vehicle.

[0119] Although the embodiments have been described above with reference to the accompanying drawings, the present disclosure is not limited to such examples. It is clear that a person skilled in the art can conceive of various modifications, corrections, substitutions, additions, deletions, and equivalents within the scope of the claims, and it is understood that these also belong to the technical scope of the present disclosure. In addition, the components in the above-mentioned embodiments may be arbitrarily combined within the scope of the invention. [Industrial Applicability]

[0120] The technology of the present disclosure is useful for vehicles equipped with displays inside the vehicle. [Explanation of symbols]

[0121] 1 vehicle 2. Body 3A 1st wheel 3B 2nd wheel 3C 3rd wheel 3D 4th wheel 4. Front Window 11 Floor section 12 Ceiling section 13 Left side part 14 Right side part 15 Front 16 Front part 17 Rear 18 Rear part 21 Front seat 22 Rear seat 23 Rear door 31 Handrail 100 Transparent Display 102 Operation section 110 In-vehicle network 111 Communication equipment 112 Vehicle control device 113 Sitting Detection Device 114 IVI equipment 115 Image control device 301 First Content 302 Secondary Content 303 Lighting 304 Message 311 1st display area 312 2nd display area

Claims

1. A first wheel coupled to the vehicle body; A second wheel connected to the vehicle body; A third wheel connected to the vehicle body; and a fourth wheel connected to the vehicle body. A vehicle capable of running in a predetermined direction using the first wheel, the second wheel, the third wheel, and the fourth wheel, The vehicle body is A floor surface portion and a ceiling surface portion arranged along the predetermined direction; a left side surface portion that connects the floor surface portion and the ceiling surface portion and is disposed on the left side along the predetermined direction; a right side surface portion that connects the floor surface portion and the ceiling surface portion and is disposed on the right side along the predetermined direction; a front surface portion that connects the floor surface portion and the ceiling surface portion and is disposed in a front portion with respect to the predetermined direction; A rear surface portion that connects the floor surface portion and the ceiling surface portion and is disposed at the rear with respect to the predetermined direction; At least one front seat arranged on the floor surface portion closer to the front surface portion than the rear surface portion; At least one rear seat disposed on the floor surface portion toward the rear surface portion from the front surface portion; A transparent display having variable light transmittance is disposed between the rear seat and the front seat. A vehicle control method for the vehicle, comprising: When the rear seat passenger is in the vehicle, the transparent display displays a first content; When a passenger gets in or out of the rear seat, the transparent display displays a second content different from the first content, and a first light transmittance of a first display area is made larger than a second light transmittance of a second display area below the first display area. A vehicle control method.

2. 2. A vehicle control method according to claim 1, The second content is displayed in the second display area. A vehicle control method.

3. 2. A vehicle control method according to claim 1, At least a portion of the second content provides a lighting function. A vehicle control method.

4. The vehicle control method according to claim 3, The lighting function is provided when the illuminance outside and / or inside the vehicle is below a predetermined threshold. A vehicle control method.

5. 2. A vehicle control method according to claim 1, When the rear seat passenger gets in or out of the vehicle, the transparent display displays a message addressed to the rear seat passenger in the second content. A vehicle control method.

6. 2. A vehicle control method according to claim 1, When the rear seat passenger gets on or off the vehicle, the transparent display displays information indicating a position of a handrail in the second content. A vehicle control method.

7. 2. A vehicle control method according to claim 1, When the rear seat passenger gets in or out of the vehicle, the transparent display displays a predetermined pattern in the second content. A vehicle control method.

8. 2. A vehicle control method according to claim 1, When the passenger in the rear seat gets on or off the vehicle, the transparent display displays, in the second content, Swinging curtains, Waves on the water surface, and The grassland swaying in the wind, Display at least one of the following: A vehicle control method.

9. 2. A vehicle control method according to claim 1, The vehicle includes a control unit. The control unit determines whether the rear seat passenger gets on or off based on schedule information of the rear seat passenger. A vehicle control method.

10. 2. A vehicle control method according to claim 1, After the rear seat passengers have completed getting in or out of the vehicle, the transparent display resumes displaying the first content. A vehicle control method.

11. A first wheel coupled to the vehicle body; A second wheel connected to the vehicle body; A third wheel connected to the vehicle body; and a fourth wheel connected to the vehicle body. A display device configured to be mounted on a vehicle capable of traveling in a predetermined direction using the first wheel, the second wheel, the third wheel, and the fourth wheel, The vehicle body is A floor surface portion and a ceiling surface portion arranged along the predetermined direction; a left side surface portion that connects the floor surface portion and the ceiling surface portion and is disposed on the left side along the predetermined direction; a right side surface portion that connects the floor surface portion and the ceiling surface portion and is disposed on the right side along the predetermined direction; a front surface portion that connects the floor surface portion and the ceiling surface portion and is disposed in a front portion with respect to the predetermined direction; A rear surface portion that connects the floor surface portion and the ceiling surface portion and is disposed at the rear with respect to the predetermined direction; At least one front seat arranged on the floor surface portion closer to the front surface portion than the rear surface portion; At least one rear seat disposed on the floor surface portion toward the rear surface portion from the front surface portion; A transparent display having a variable light transmittance is disposed between the rear seat and the front seat, When the rear seat passenger is in the vehicle, the transparent display displays a first content; When a passenger gets in or out of the rear seat, the transparent display displays a second content different from the first content, and a first light transmittance of a first display area is made larger than a second light transmittance of a second display area below the first display area. Display device.

12. The display device according to claim 11, The second content is displayed in the second display area. Display device.

13. The display device according to claim 11, At least a portion of the second content provides a lighting function. Display device.

14. The display device according to claim 13, The lighting function is provided when the illuminance outside and / or inside the vehicle is below a predetermined threshold. Display device.

15. The display device according to claim 11, When the rear seat passenger gets in or out of the vehicle, the transparent display displays a message addressed to the rear seat passenger in the second content. Display device.

16. The display device according to claim 11, When the rear seat passenger gets on or off the vehicle, the transparent display displays information indicating a position of a handrail in the second content. Display device.

17. The display device according to claim 11, When the rear seat passenger gets in or out of the vehicle, the transparent display displays a predetermined pattern in the second content. Display device.

18. The display device according to claim 11, When the passenger in the rear seat gets on or off the vehicle, the transparent display displays, in the second content, Swinging curtains, Waves on the water surface, and The grassland swaying in the wind, Display at least one of the following: Display device.

19. The display device according to claim 11, The vehicle includes a control unit. The control unit determines whether the rear seat passenger gets on or off based on schedule information of the rear seat passenger. Display device.

20. The display device according to claim 11, After the rear seat passengers have completed getting in or out of the vehicle, the transparent display resumes displaying the first content. Display device.

Images