JP2017149357A - On-vehicle display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently use an on-vehicle display device even when there is no occupant on a rear seat during travel of a vehicle.SOLUTION: A display device 10 comprises: a display unit 11 which has a display part 12 being suspended from a ceiling 80 in a cabin and displaying information; a movement unit which moves the display unit 11 between a first position where an occupant who sits down on rear seats (a seat 92 at a second row, a seat 93 at a third row) in the cabin can visually recognize a screen 13 of the display part 12 and a second position which is close to a rear window 94 of a vehicle 90 relative to the first position, and in which the screen 13 of the display part 12 faces the rear window 94; a drive control part for controlling drive of the movement unit for moving the display unit 11 to the second position from the first position; and a display control part for controlling the display part 12 for displaying information for outside of the vehicle on the screen 13 when the display unit 11 is at the second position.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an in-vehicle display device that is suspended from a ceiling in a vehicle interior and displays information.

  In a vehicle such as a so-called minivan, an in-vehicle display having a display unit that is suspended from the ceiling between the first row seat and the second row seat and displays information for passengers in the second row seat and the third row seat Some are provided with a device. Conventionally, as such an in-vehicle display device, there is one equipped with a displacement mechanism that displaces the display unit between a hanging position where the display unit is suspended from the ceiling and a storage position where the display unit is stored along the ceiling. Yes (see, for example, Patent Document 1).

JP 2002-234390 A

By the way, in the technique described in Patent Document 1, there is a problem that the in-vehicle display device cannot be effectively used when there is no occupant in the second row seat or the third row seat while the vehicle is running.
An object of the present invention is to provide an in-vehicle display device that can be used effectively even when there is no occupant in the rear seat while the vehicle is traveling.

  An in-vehicle display device for achieving the above object is a display unit that has a display unit that is suspended from a ceiling in a vehicle interior and displays information, and a passenger seated in a seat in the vehicle cabin can visually recognize the screen of the display unit A moving unit that moves the display unit between the first position and a second position that is closer to the window of the vehicle than the first position and the screen of the display unit faces the window. A drive control unit that controls driving of the moving unit to move the display unit from the first position to the second position; and when the display unit is in the second position, A display control unit that controls the display unit to display on a screen.

  According to this configuration, the display unit can be moved between the first position and the second position by driving the moving unit. For this reason, when the display unit is in the first position, an occupant seated in the seat can view the screen of the display unit, and can watch a television or a movie.

  On the other hand, when the display unit is in the second position during traveling of the vehicle, information for the outside of the vehicle is displayed on the screen of the display unit. For this reason, the information for the outside of the vehicle can be transmitted outside the vehicle through the window of the vehicle.

  According to the present invention, the in-vehicle display device can be effectively used even when there is no passenger in the rear seat while the vehicle is traveling.

Sectional drawing along the front-back direction of the vehicle provided with the said vehicle-mounted display apparatus about one Embodiment of a vehicle-mounted display apparatus. The rear view of the vehicle of the embodiment. Sectional drawing centering on the display unit and movement unit which comprise the vehicle-mounted display apparatus of the embodiment. FIG. 4 is a cross-sectional view taken along line 4-4 of FIG. The top view centering on the wiring structure of the movement unit and wire harness in the embodiment. The block diagram which shows the electrical structure centering on the electronic control apparatus of the embodiment. 5 is a flowchart showing a processing procedure for display device control in the embodiment. (A)-(c) is a figure which shows an example of the information displayed on the screen of a display part.

Hereinafter, an embodiment will be described with reference to FIGS.
As shown in FIG. 1, the vehicle 90 to which the vehicle-mounted display device (hereinafter referred to as the display device 10) of the present embodiment is applied has one row in order from the front in the vehicle longitudinal direction (hereinafter referred to as the longitudinal direction L). An eye sheet 91, a second row sheet 92, and a third row sheet 93 are provided.

  As shown in FIGS. 1 and 2, the display device 10 of the present embodiment is suspended from a ceiling 80 in a passenger compartment, and includes a display unit 11 having a square plate-like display unit 12 for displaying information. A moving unit 20 that moves the display unit 11 between a first position indicated by a solid line and a second position indicated by a two-dot chain line is provided. In addition, illustration of the movement unit 20 is abbreviate | omitted in FIG.

  The first position is between the first row seat 91 and the second row seat 92, and the passenger seated in the rear seat (the second row seat 92 or the third row seat 93) displays the screen 13 of the display unit 12. It is a position where can be visually recognized. The second position is a position behind the third row seat 93 that is the rearmost seat, and the screen 13 of the display unit 12 faces the rear window 94.

<Mobile unit 20>
As shown in FIGS. 3 and 4, the ceiling 80 has a roof liner 81 as a lining and a reinforcing plate 82 that is fixed to the upper surface of the roof liner 81 and reinforces the roof liner 81. A through hole 83 extending along the front-rear direction L is formed at the center of the ceiling 80 in the vehicle width direction W.

  As shown in FIGS. 4 and 5, the upper surface of the reinforcing plate 82 is provided with a pair of rail portions 21 that sandwich the through hole 83 from both sides in the vehicle width direction W and extend along the front-rear direction L. . The rail portion 21 extends from the position between the first-row seat 91 and the second-row seat 92 in the front-rear direction L to a position behind the third-row seat 93.

As shown in FIGS. 4 and 5, a movable body 22 is provided on the pair of rail portions 21 so as to be movable in the front-rear direction L.
As shown in FIG. 4, the moving body 22 rolls on a pair of rail portions 21 fixed to both ends of the main body 23, the connecting shaft 24 rotatably supported by the main body 23, and the connecting shaft 24. A pair of rollers 25 is provided. A worm wheel 29 is fixed to the central portion of the connecting shaft 24.

  As shown in FIGS. 3 and 4, a moving motor 26 is fixed inside the main body 23. An output shaft 27 of the moving motor 26 protrudes rearward, and a worm 28 that meshes with the worm wheel 29 is fixed to the tip of the output shaft 27. The worm 28 and the worm wheel 29 constitute a worm gear. When the moving motor 26 is driven and the worm 28 rotates, the connecting shaft 24 is driven to rotate through the worm wheel 29, so that the pair of rollers 25 roll on the pair of rail portions 21.

The rail unit 21 and the moving body 22 constitute a moving unit 20.
As shown in FIG. 5, stoppers 211 and 212 that restrict the movement of the moving body 22 forward and backward are provided at the front end and the rear end of the rail portion 21, respectively.

<Display unit 11>
As shown in FIGS. 3 and 4, a support portion 17 that projects downward is connected to the bottom wall of the main body portion 23 of the moving body 22. The support part 17 passes through the through hole 83 of the ceiling 80 and protrudes into the vehicle interior. A storage part 14 for storing the display part 12 is connected to the lower end of the support part 17.

  As shown in FIG. 3, a rotation shaft 15 extending along the vehicle width direction W is provided at the rear end portion of the storage portion 14, and one side of the display unit 12 is provided on the rotation shaft 15. It is fixed. An output shaft of the swing motor 16 is connected to one end of the rotation shaft 15. By driving the swinging motor 16 and rotating the rotation shaft 15, the display unit 12 is moved to a position indicated by a solid line in FIG. 3 (a position where the display unit 12 is suspended from the ceiling 80, hereinafter referred to as a hanging). Position) and a position indicated by a two-dot chain line in the drawing (a position stored in the storage unit 14, hereinafter referred to as a storage position).

The display unit 11 is configured by the display unit 12, the storage unit 14, the rotating shaft 15, and the swinging motor 16.
Next, a wiring structure of the wire harness 41 that supplies power to the display unit 12, the swinging motor 16, and the moving motor 26 and transmits an image signal to the display unit 12 will be described.

  As shown in FIG. 3, the wire harness 41 is inserted through an insertion hole 231 formed in the front wall of the main body 23 of the moving body 22. A part of the wire harness 41 is electrically connected to the moving motor 26. Further, a part of the wire harness 41 is electrically connected to the swinging motor 16 and the display unit 12 through the inside of the support unit 17.

A portion of the wire harness 41 located outside the moving body 22 (the front side in the figure) is covered with a corrugated tube 42.
A cylindrical holding member 43 that holds one end 421 of the corrugated pipe 42 is fixed to the front wall of the main body 23 of the moving body 22. The plurality of protrusions 44 formed on the inner peripheral surface of the holding member 43 are engaged with the recesses on the outer peripheral surface of the corrugated tube 42, whereby the corrugated tube 42 is held by the holding member 43.

As shown in FIG. 3 and FIG. 5, an accommodation portion 45 for accommodating the wire harness 41 covered with the corrugated pipe 42 so as to be freely inserted and removed is provided on the upper surface of the reinforcing plate 82.
As shown in FIG. 5, the accommodating portion 45 is provided in parallel with the pair of rail portions 21 in the vehicle width direction W, and is a surplus portion bent into a U shape in the wire harness 41 covered with the corrugated pipe 42. And a guide portion 47 provided between the surplus length accommodating portion 46 and the holding member 43 to guide the wire harness 41 while curving it.

  Further, below the guide portion 47, an intersecting portion that intersects the wire harness 41 covered with the corrugated tube 42 with the lead portion 411 of the wire harness 41 extending forward from the other end 422 of the corrugated tube 42. 48 is provided.

In addition, the said drawer | drawing-out part 411 is electrically connected to the electronic control apparatus 50 mentioned later, for example through the inside of a door pillar.
According to such a structure, when the moving body 22 moves rearward, the wire harness 41 covered with the corrugated pipe 42 is smoothly fed out from the housing portion 45 toward the rear. At this time, the U-shaped surplus portion of the wire harness 41 moves from the position indicated by the solid line in FIG. 5 to the position indicated by the two-dot chain line in FIG.

  On the contrary, when the moving body 22 moves forward, the wire harness 41 covered with the corrugated pipe 42 is fed into the accommodating portion 45. At this time, the U-shaped surplus portion of the wire harness 41 moves from the position indicated by the two-dot chain line in FIG. 5 to the position indicated by the solid line in FIG.

Display control of the display unit 12, drive control of the swing motor 16, and drive control of the movement motor 26 are performed by the electronic control device 50.
As shown in FIG. 6, the electronic control unit 50 includes a central processing control unit (CPU), a read-only memory (ROM) that stores various programs and maps in advance, and a random access memory (temporarily storing the calculation results of the CPU). RAM), a timer counter, an input interface, an output interface, and the like.

  The electronic control unit 50 controls the driving of the moving motor 26 to move the display unit 11 between the first position and the second position, and also swings the display unit 11 between the hanging position and the storage position. A drive control unit 51 for controlling the drive of the swinging motor 16 to be moved is provided.

In addition, the electronic control device 50 includes a display control unit 52 that controls the display unit 12 to display information for the outside of the vehicle on the screen 13 when the display unit 11 is in the second position.
The electronic control device 50 has an occupant seated on the operation signal of the operation switch 60 for operating the display device 10, the detection signal of the illuminance sensor 61 for detecting the illuminance outside the vehicle, the second row seat 92 and the third row seat 93. The detection signals of the seating sensors 62 and 63 for detecting whether or not there are are input. Further, the electronic control unit 50 includes a detection signal of a shift position sensor 64 that detects a shift position of a shift lever of the vehicle, a detection signal of a moving body position sensor 65 that detects the position of the moving body 22 in the front-rear direction L, and a display unit. The display position sensor 66 for detecting the position 12 (swing angle) is input.

  The operation switch 60 may be provided around the driver's seat as a push button switch, or may be provided as a capacitive switch, a so-called touch switch, on a display of a vehicle navigation system. The seating sensors 62 and 63 are configured by known pressure sensitive sensors. In addition, the moving body position sensor 65 and the display unit position sensor 66 are configured by, for example, known proximity sensors.

Next, a processing procedure for display device control will be described with reference to FIG.
The display device control is executed by the drive control unit 51 and the display control unit 52 of the electronic control device 50 when the operation switch 60 is turned on.

  As shown in FIG. 7, in this series of processing, first, in step S1, an occupant sits in the rear seat (second row seat 92 or third row seat 93) based on detection signals of the seating sensors 62 and 63. It is judged whether or not.

  Here, when an affirmative determination is made (step S1: “YES”), the passenger is seated in the rear seat, and the display unit 11 may be used by the passenger of the vehicle 90. This process is terminated.

  On the other hand, if a negative determination is made in step S1 (step S1: “NO”), the process proceeds to step S2, and the display unit 12 is in the storage position based on the detection signal of the display unit position sensor 66. It is determined whether or not.

Here, when a negative determination is made (step S2: “NO”), the process proceeds to step S3, and storage drive control of the swing motor 16 is executed to bring the display unit 12 to the storage position.
In the storage drive control, the drive of the swing motor 16 is continued until it is determined that the display unit 12 is in the storage position based on the detection signal of the display unit position sensor 66.

  On the other hand, when an affirmative determination is made in step S2 (step S2: “YES”), the process proceeds to step S4, where drive control of the moving motor 26 is performed to move the display unit 11 to the second position. Executed.

  In the drive control of the moving motor 26, the driving of the moving motor 26 is continued until it is determined that the moving body 22 is at a position corresponding to the second position based on the detection result of the moving body position sensor 65.

When the drive control of the movement motor 26 is completed, the process proceeds to step S5, and the suspension drive control of the swing motor 16 is executed to bring the display unit 12 to the suspension position.
In this suspension drive control, the drive of the swing motor 16 is continued until it is determined that the display unit 12 is in the suspended position based on the detection signal of the display unit position sensor 66.

When the suspension drive control ends, the process proceeds to step S6, where display control is executed.
In this display control, the display unit 12 is controlled to display information for the outside of the vehicle, which will be described later, on the screen 13. Then, this series of processing is terminated.

Next, an example of information for the outside of the vehicle will be described with reference to FIG.
The information shown in FIG. 8A is information on characters and symbols that prompt the vehicle following the vehicle 90 to pass.

The information shown in FIG. 8B is character or picture information indicating that an infant is on the vehicle 90.
The information shown in FIG. 8C is information on characters and symbols indicating the destination and route of the vehicle 90. In this case, it is preferable that information is sequentially updated based on destination and route information set by the navigation system mounted on the vehicle 90.

Note that switching of information displayed on the screen 13 is performed through operation of the operation switch 60.
According to the vehicle-mounted display device according to the present embodiment described above, the following effects can be obtained.

  (1) The display device 10 includes a display unit 11 that has a display unit 12 that is suspended from a ceiling 80 in a passenger compartment and displays information. In addition, the display device 10 includes a first position where an occupant seated on the second row seat 92 or the third row seat 93 in the passenger compartment can visually recognize the screen 13 of the display unit 12, and the rear of the vehicle 90 more than the first position. A moving unit 20 is provided that moves the display unit 11 between a position close to the window 94 and a second position where the screen 13 of the display unit 12 faces the rear window 94. Further, the display device 10 has a drive control unit 51 that controls driving of the moving unit 20 to move the display unit 11 from the first position to the second position, and when the display unit 11 is in the second position, The display control unit 52 that controls the display unit 12 to display the information on the screen 13 is provided.

  According to such a configuration, the display unit 11 can be moved between the first position and the second position by driving the moving unit 20. For this reason, when the display unit 11 is in the first position, an occupant seated in the rear seat (second row seat 92 or third row seat 93) can visually recognize the screen 13 of the display unit 12, and can be used for television or movies. Etc. can be seen.

  On the other hand, when the display unit 11 is in the second position during traveling of the vehicle, information for the outside of the vehicle is displayed on the screen 13 of the display unit 12. For this reason, the information for the exterior of the vehicle can be transmitted to the exterior of the vehicle through the rear window 94 of the vehicle 90. Therefore, information can be effectively transmitted outside the vehicle.

Therefore, the display device 10 can be used effectively even when there is no passenger in the rear seat while the vehicle is traveling.
(2) The drive control unit 51 prohibits driving of the moving motor 26 when an occupant is present between the first position and the second position.

  According to such a configuration, when there is an occupant between the first position and the second position and there is a possibility that the occupant of the vehicle 90 may use the display unit 11, the display unit 11 is in the second position. Not moved to position. In other words, the display unit 11 is moved to the second position only when the display unit 11 is not used in the passenger compartment. Therefore, it is possible to avoid the inconvenience that the passenger of the vehicle 90 cannot use the display unit 11.

  (3) The second position is a position behind the rearmost seat (the third row seat 93) and the screen 13 of the display unit 12 faces the rear window 94 of the vehicle 90. For this reason, the visibility of the screen 13 from the rear can be enhanced while the vehicle is running.

  (4) When the seating sensors 62 and 63 detect that the occupant is seated in the rear seat (second row seat 92, third row seat 93), the drive control unit 51 Prohibit driving.

  According to such a configuration, whether or not an occupant is seated in the rear seat can be accurately detected by the seating sensors 62 and 63. When it is detected that an occupant is seated in the rear seat, the driving of the moving motor 26 is prohibited. For this reason, it is possible to easily avoid the inconvenience that the passenger of the vehicle 90 cannot use the display unit 11 by using the known seating sensors 62 and 63.

  (5) When the display unit 12 is in the suspended position, the drive control unit 51 controls the drive of the swing motor 16 to bring the display unit 12 to the retracted position prior to driving the movement motor 26.

  According to such a configuration, prior to driving the movement motor 26, when the display unit 12 is in the suspended position, the display unit 12 is brought into the storage position by driving the swinging motor 16. As a result, the movement motor 26 is driven in a state where the display unit 12 is at the storage position. Therefore, when the display unit 11 is moved from the first position to the second position, the display unit 12 can be prevented from interfering with an obstacle such as a headrest in the rear seat.

(6) The display control unit 52 controls the display unit 12 to display information on the vehicle 90 and information on an occupant of the vehicle 90 on the screen 13 as information.
According to such a configuration, information related to the vehicle 90 and information related to passengers of the vehicle 90 are displayed outside the vehicle as information. For this reason, the information regarding the said vehicle 90 and its passenger | crew can be actively transmitted toward the exterior of a vehicle.

(7) The display control unit 52 controls the display unit 12 to display, on the screen 13, information on characters and symbols that prompt the subsequent vehicle to overtake as information related to the vehicle 90.
According to such a configuration, information regarding the vehicle 90 can be effectively transmitted to the driver of the following vehicle even at night.

(8) The display control unit 52 controls the display unit 12 to display information on characters and symbols indicating the destination and the route on the screen 13 as information regarding the vehicle 90.
According to such a configuration, characters and symbols indicating the destination and route of the vehicle 90 are transmitted to the following vehicle through the screen 13. For this reason, for example, on a highway, the driver of a vehicle following the vehicle 90 can grasp the destination and route of the vehicle 90 that is a preceding vehicle. Therefore, the driver of the following vehicle is effective in determining whether or not the vehicle 90 is a target vehicle to be followed when performing the adaptive cruise control traveling that keeps the inter-vehicle distance from the preceding vehicle constant. Judgment materials can be obtained.

<Modification>
In addition, the said embodiment can also be changed as follows, for example.
The brightness of the backlight of the display unit 12 can be variably set according to the detection signal of the illuminance sensor 61. That is, when the illuminance is high as in the daytime, it is preferable to increase the backlight brightness compared to when the illuminance is low as in the nighttime in order to improve the visibility of the screen 13.

  If the shift position of the shift lever is changed to the reverse position when the display unit 12 is in the hanging position during the display device control, the display unit control is stopped and the display unit 12 is The swing motor 16 can also be driven to the retracted position. In this case, it can be avoided that the display unit 12 suspended from the ceiling becomes an obstacle when the driver confirms the rear through the rear window 94.

  In the above embodiment, the display device control is executed by turning on the operation switch 60. For example, the driver is seated in the driver's seat, and no passenger is seated in the rear seat. In addition, when all the doors are closed, the display device control can be automatically executed. In this case, the operation of the operation switch 60 can be omitted. Alternatively, the operation switch 60 itself can be omitted.

In the display control, character information indicating the room temperature of the vehicle 90 may be displayed on the screen 13 of the display unit 12.
When the vehicle 90 performs cruise control traveling that maintains a constant speed, in addition to the information shown in FIG. 8C or alternately with the same information, this indicates that the vehicle 90 is traveling in cruise control. Information on characters and symbols may be displayed on the display unit 12. In this case, the driver of the vehicle following the vehicle 90 can grasp that the vehicle 90 is performing cruise control in addition to the destination and route of the vehicle 90 that is the preceding vehicle. Therefore, the driver of the following vehicle can obtain a more effective determination material for determining whether or not the vehicle 90 is a target vehicle to be followed when performing the adaptive cruise control traveling.

  In the above embodiment, the seat sensors 62 and 63 detect whether or not an occupant is seated in the rear seat. Instead of this, an infrared sensor or the like may be provided in the passenger compartment, and it may be detected whether an occupant is present between the first position and the second position.

  In the above embodiment, the display unit 11 is moved between the first position between the first row sheet 91 and the second row sheet 92 and the second position behind the third row sheet 93 by the moving unit 20. An example of a configuration for moving the object is illustrated. Instead, between the first position and a second position closer to the side window located on the side of the second row seat 92 than the first position, and the screen 13 faces the side window. You may make it move the display unit 11 by. In this case, a mechanism for rotating the support portion 17 with respect to the moving body 22 may be added so that the screen 13 faces the outside in the vehicle width direction W.

  DESCRIPTION OF SYMBOLS 10 ... Display apparatus, 11 ... Display unit, 12 ... Display part, 13 ... Screen, 14 ... Storage part, 15 ... Rotating shaft, 16 ... Swing motor, 17 ... Support part, 20 ... Moving unit, 21 ... Rail part , 211, 212 ... restricting portion, 22 ... moving body, 23 ... main body portion, 231 ... insertion hole, 24 ... connecting shaft, 25 ... roller, 26 ... moving motor, 27 ... output shaft, 28 ... worm, 29 ... worm Wheel, 41 ... Wire harness, 411 ... Drawer part, 42 ... Corrugated tube, 421 ... One end part, 422 ... Other end part, 43 ... Holding member, 44 ... Protrusion, 45 ... Housing member, 46 ... Extra length housing part, 47 DESCRIPTION OF SYMBOLS ... Guide part, 48 ... Crossing part, 50 ... Electronic control unit, 51 ... Drive control part, 52 ... Display control part, 60 ... Operation switch, 61 ... Illuminance sensor, 62 ... Seating sensor, 63 ... Seating sensor, 64 ... Shift Position sensor 65 ... mobile location sensor, 66 ... display unit position sensor 80 ... ceiling, 81 ... roof liner, 82 ... reinforcing plate, 83 ... through hole, 90 ... vehicle, 91 to 93 ... sheet, 94 ... rear window.

Claims (6)

A display unit that has a display unit that is hung from the ceiling in the passenger compartment and displays information;
A first position where an occupant seated in a seat in the vehicle cabin can visually recognize the screen of the display section, and a position closer to the vehicle window than the first position, and the screen of the display section faces the window. A moving unit that moves the display unit to and from a second position;
A drive control unit for controlling the driving of the moving unit to move the display unit from the first position to the second position;
A display control unit that controls the display unit to display information directed to the outside of the vehicle on the screen when the display unit is in the second position;
In-vehicle display device. The drive control unit prohibits driving of the moving unit when an occupant is present between the first position and the second position;
The in-vehicle display device according to claim 1. A seating sensor for detecting whether a passenger is seated in the rear seat of the vehicle;
The drive control unit prohibits the driving of the moving unit when the seating sensor detects that an occupant is seated in the rear seat;
The in-vehicle display device according to claim 2. The first position is a front side of the rearmost seat, and is a position where an occupant seated in the rearmost seat can visually recognize the screen of the display unit,
The second position is a position behind the rear seat and the screen of the display unit faces the rear window of the vehicle.
The vehicle-mounted display apparatus as described in any one of Claims 1-3. The display unit is a displacement that displaces the display unit between a hanging position where the display unit is suspended from the ceiling and a storage position where the display unit is stored along the ceiling. Equipped with a mechanism,
The drive control unit controls driving of the displacement mechanism to displace the display unit to the storage position when the display unit is in the hanging position prior to driving the moving unit.
The vehicle-mounted display apparatus as described in any one of Claims 1-4. The display control unit controls the display unit to display at least one of information on the vehicle and information on an occupant of the vehicle on the screen as the information.
The vehicle-mounted display apparatus as described in any one of Claims 1-5.

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