Seat belt warning device

Abstract

To provide a seat belt warning device that is able to suitably urge to wear a seat belt.SOLUTION: A vehicle includes: a seat composed of an electric seat; a seat belt for holding an occupant seated on the seat; and an operation terminal for operating the seat. A seat belt warning device is set to a function-limiting mode (S15) when the vehicle is traveling (S13: YES), presence of an occupant in the seat is detected (S11: YES), and absence of wearing of a seat belt is detected (S12: YES). In the function-limiting mode, a warning screen indicating that the seat belt is not fastened is displayed on a terminal display, and an operation of the seat by the terminal display is limited.SELECTED DRAWING: Figure 7

Description

[Technical field]

[0001] The present invention relates to a seat belt warning device that issues a warning when a vehicle occupant is not fastening a seat belt. [Background technology]

[0002] Vehicles such as automobiles are provided with seat belt devices for holding occupants in place. In recent years, seat belt warning devices have been widely installed in such vehicles. The seat belt warning device issues a warning, such as by turning on a warning light, when an occupant in a front seat, such as the driver's seat or passenger seat, in a vehicle is not fastening his or her seat belt. This warning encourages the occupant in the front seat to fasten his or her seat belt.

[0003] Also proposed is a seat belt warning device that warns occupants in rear seats, such as second row seats, that their seat belts are not fastened (see Patent Document 1). In the device described in Patent Document 1, when the seat belt is not fastened, in addition to turning on a warning light, the set positions of the movable parts of the electric seat are returned to their initial positions. In this device, while it is difficult for an occupant to notice that the seat belt is not fastened simply by turning on the warning light, the set position of the electric seat is returned to its initial position, causing the occupant to feel uncomfortable, thereby helping the occupant realize that the seat belt is not fastened. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2008-254506 A Summary of the Invention [Problem to be solved by the invention]

[0005] In the above-mentioned device, if the set positions of the movable parts of the electric seat are returned to their initial positions as described above while a passenger in the rear seat is not fastening the seat belt, the passenger may not associate the change in the position of the electric seat with the seat belt not being fastened, which may simply cause the passenger discomfort. [Means for solving the problem]

[0006] Various aspects of the device for solving the above problems will now be described. [Aspect 1] A seat belt warning device applied to a vehicle equipped with a seat, a seat belt to hold an occupant seated in the seat, a specific operating device that operates to improve vehicle habitability, a display unit that displays an operation screen for operating the specific operating device, and an operation terminal having an operation unit to which input operations are performed by the occupant seated in the seat, and comprising a warning control unit that, when the vehicle is traveling, an occupant is seated in the seat, and the occupant seated in the seat is not fastening the seat belt, displays a warning screen on the display unit indicating that the seat belt is not fastened and limits the operation of the specific operating device by the operation unit.

[0007] In the above configuration, when an occupant sitting in a seat does not fasten a seat belt while the vehicle is moving, a warning screen is displayed on the display unit of the operation terminal used by the occupant. Therefore, when the occupant looks at the operation terminal to operate a specific operating device, the warning screen displayed on the display unit catches his / her eye. In this way, the above configuration allows the occupant to recognize that the seat belt is not fastened.

[0008] In addition, in the above configuration, in conjunction with the display of the warning screen on the display unit of the operation terminal, the operation of the specific operating device by the operation unit of the operation terminal is restricted. In the above configuration, the display of the warning screen and the operation restriction of the specific operating device are performed by using a common operation terminal.

[0009] Therefore, when an occupant in a seat does not fasten the seat belt while the vehicle is moving, the occupant first becomes aware that the seat belt is not fastened based on the warning screen displayed on the display unit. After that, while the occupant in the seat recognizes that the seat belt is not fastened, the operation of the specific operating device using the operation unit of the operation terminal is restricted.

[0010] Therefore, even if the operation of the specific operating device is restricted when the seat belt is not fastened, the occupant in the seat will perceive this operation restriction as an event associated with the seat belt being unfastened, thereby reducing the discomfort felt by the occupant due to the execution of the operation restriction of the specific operating device.

[0011] According to the above configuration, it is possible to notify the occupant that the seat belt is not fastened while suppressing discomfort felt by the occupant in the seat, and to appropriately urge the occupant to fasten the seat belt.

[0012] [Aspect 2] A seat belt warning device applied to a vehicle equipped with a front seat, a rear seat located rearward of the front seat, a seat belt for holding an occupant seated in the rear seat, an occupancy detection unit for detecting whether an occupant is seated in the rear seat, a wearing detection unit for detecting whether the seat belt is fastened, a specific operating device that operates to improve vehicle habitability, a display unit for displaying an operation screen for operating the specific operating device, and an operation terminal having an operation unit through which input operations are performed by an occupant seated in the rear seat, and comprising: a warning control unit that, when the vehicle is traveling and the seating detection unit detects the presence of an occupant in the rear seat and the wearing detection unit detects that the seat belt is not fastened, displays a warning screen on the display unit indicating that the seat belt is not fastened and restricts operation of the specific operating device by the operation unit.

[0013] In the above configuration, when a passenger sitting in the back seat is not wearing a seat belt while the vehicle is moving, a warning screen is displayed on the display unit of the operation terminal used by the passenger. Therefore, when the passenger in the back seat looks at the operation terminal to operate a specific operating device, the warning screen displayed on the display unit catches his / her eye. In this way, the above configuration allows the passenger in the back seat to recognize that the seat belt is not fastened.

[0014] In addition, in the above configuration, in conjunction with the display of the warning screen on the display unit of the operation terminal, the operation of the specific operating device by the operation unit of the operation terminal is restricted. In the above configuration, the display of the warning screen and the operation restriction of the specific operating device are performed by using a common operation terminal.

[0015] Therefore, when a passenger sitting in the back seat does not fasten the seat belt while the vehicle is moving, the passenger first becomes aware that the seat belt is not fastened based on the warning screen displayed on the display unit. After that, while the passenger in the back seat recognizes that the seat belt is not fastened, the operation of the specific operating device using the operation unit of the operation terminal is restricted.

[0016] Therefore, even if the operation of the specific operating device is restricted when the seat belt is not fastened, the passengers in the rear seats will perceive the operation restriction as an event associated with the seat belt being unfastened, thereby reducing the discomfort felt by the passengers due to the execution of the operation restriction of the specific operating device.

[0017] According to the above configuration, it is possible to notify the occupants in the rear seats that they are not fastening their seat belts while minimizing discomfort to the occupants, thereby preferably urging them to fasten their seat belts.

[0018] [Aspect 3] The seat belt warning device according to [Aspect 2], wherein the specific operating device is an electric seat constituting the rear seat. According to the above configuration, when an occupant sitting in the rear seat is not wearing a seat belt while the vehicle is running, the operation of the rear seat (electric seat) in which the occupant is sitting can be restricted in order to notify the occupant that the seat belt is not fastened. At this time, the occupant in the rear seat feels uncomfortable with the operation of the rear seat (electric seat) which is in direct contact with his / her body. This makes it possible to reliably notify the occupant in the rear seat that the seat belt is not fastened.

[0019] [Aspect 4] The vehicle has a plurality of rear seats, and the seat belt, the seating detection unit, the wearing detection unit, and the operation terminal are provided separately corresponding to each of the plurality of rear seats, and the warning control unit performs the following operations corresponding to each of the plurality of rear seats: displaying the warning screen on the display unit and restricting the operation of the specific operating equipment by the operation unit.A seat belt warning device as described in [Aspect 2] or [Aspect 3].

[0020] According to the above configuration, in a vehicle equipped with multiple rear seats, it is possible to notify each rear seat that the seat belt is not fastened, thereby making it possible to notify the rear seat occupants that the seat belt is not fastened without causing discomfort to occupants sitting in other seats. Effect of the Invention

[0021] According to the present invention, it is possible to effectively encourage occupants to fasten their seat belts. [Brief description of the drawings]

[0022] [Figure 1] 1 is a schematic configuration diagram of a vehicle to which a seat belt warning device according to an embodiment is applied; [Diagram 2] 2 is a block diagram showing a schematic configuration of the seat belt warning device. FIG. [Diagram 3] FIG. 1A is a diagram showing a display state of the terminal display during audio operation, and FIG. 1B is a diagram showing a display state of the rear display during audio operation. [Figure 4] FIG. 13 is a diagram showing a display mode of a pull-down menu. [Diagram 5] FIG. 2 is a perspective view of a rear seat of the vehicle according to the embodiment. [Figure 6] 13A and 13B are diagrams illustrating a display state of the terminal display when operating the rear seat. [Figure 7] 5 is a flowchart showing a procedure for executing a rear seat warning control process. [Figure 8] FIG. 13 is a diagram showing a display state of the terminal display in a function restriction mode. [Figure 9] FIG. 13 is a diagram showing a display state of a terminal display in a function restriction mode according to another embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0023] An embodiment of a seat belt warning device will now be described. In the following description, the front-rear direction of the vehicle will be referred to as the front-rear direction X, and the width direction of the vehicle will be referred to as the vehicle width direction Y. In addition, the front side and the rear side of the vehicle in the front-rear direction X will be referred to simply as the "front side" and the "rear side", respectively, and the right side and the left side in the vehicle width direction Y will be referred to simply as the "right side" and the "left side", respectively.

[0024] <Vehicle> 1, a vehicle 10 has a cabin 11 that forms a living space. A front seat 12 and a rear seat 13 are provided in the cabin 11 and arranged side by side in the front-rear direction X.

[0025] The front seat 12 is disposed in front of the cabin 11. The front seat 12 has a driver's seat 12D and a passenger seat 12S provided on the left side of the driver's seat 12D. The driver's seat 12D and the passenger seat 12S are disposed side by side with an interval in the vehicle width direction Y.

[0026] The rear seat 13 is disposed rearward of the front seat 12 in the cabin 11. The rear seat 13 has a right seat 13R and a left seat 13L provided to the left of the right seat 13R. The right seat 13R and the left seat 13L are disposed side by side with an interval between them in the vehicle width direction Y. The rear seat 13 is configured to accommodate two passengers side by side in the vehicle width direction Y.

[0027] The cabin 11 is provided with a bulkhead 14 that separates the front seat 12 from the rear seat 13. The bulkhead 14 divides the cabin 11 into a front space where the front seat 12 is arranged and a rear space where the rear seat 13 is arranged.

[0028] <Multimedia devices> A multimedia device (hereinafter, referred to as MM device 20) is provided in front of the front seat 12 in the cabin 11. As shown in FIG.

[0029] The front display 21 is for displaying information such as videos and images. The front display 21 provides various information such as information related to driving the vehicle 10 and information related to the operation of in-vehicle devices to the passenger seated in the front seat 12. The front display 21 is of a touch panel type. Various operation buttons are displayed on the front display 21 at appropriate times.

[0030] The MM control unit 22 may be, for example, a microcontroller unit. The MM control unit 22 includes a processor and a storage unit 23. The storage unit 23 includes a ROM (Read Only Memory) and a RAM (Random Access Memory). Control programs and data are stored in the storage unit 23. The MM control unit 22 executes various controls related to the operation control of the MM device 20, such as the operation control of the front display 21.

[0031] The vehicle 10 has speakers 24. The speakers 24 are provided for the front seats 12 and for the rear seats 13. Each speaker 24 is connected to an MM control unit 22 of the MM device 20. In this embodiment, sound is emitted from the speaker 24 for the front seats 12 in accordance with the display of information on the front display 21.

[0032] The MM device 20 has a radio receiving unit 25 that receives radio broadcasts, a television receiving unit 26 that receives television broadcasts, and a disc playback unit 27 that plays discs (CDs, DVDs). The MM device 20 has a radio function, a television function, and a disc playback function.

[0033] The MM device 20 has a wireless communication unit 28 as a device that performs wireless communication with other devices. The wireless communication unit 28 is a wireless communication module that complies with the BLE (Bluetooth Low Energy, registered trademark) standard. The wireless communication unit 28 has a communication antenna and a communication circuit. In this embodiment, other devices such as an in-vehicle operation terminal 40 and a user-owned mobile terminal 15, which will be described later, also have wireless communication units 43 and 151 that are wireless communication modules that comply with the BLE standard. In this embodiment, the MM device 20 is paired with other devices (specifically, the operation terminal 40 and the mobile terminal 15) using the wireless communication unit 28, thereby enabling wireless communication between the MM device 20 and other devices. Note that, as the wireless communication units 28, 43, and 151, it is possible to adopt wireless communication modules that comply with wireless communication standards other than the Bluetooth (registered trademark) standard, such as a wireless communication module that complies with the Zigbee (registered trademark) standard.

[0034] In this embodiment, through wireless communication using the wireless communication unit 28, data transmitted from other devices is received by the MM device 20, and data transmitted from the MM device 20 is received by other devices.

[0035] Specifically, data transmitted and received between the MM device 20 and the in-vehicle operation terminal 40 via the wireless communication units 28, 43 includes operation data related to the operation of the MM device 20 (volume operation, selection of playback data, etc.) In this embodiment, the MM device 20 operates based on the data received by the wireless communication unit 28.

[0036] Furthermore, data transmitted and received between the MM device 20 and the user's mobile terminal 15 via the wireless communication units 28, 151 includes sound data (audio data, music data, etc.) related to the sound generated from the speaker 24. In this embodiment, it is possible to operate the speaker 24 based on the data received by the wireless communication unit 28. In this manner, the MM device 20 of this embodiment has a Bluetooth audio function.

[0037] The cabin 11 is provided with a rear display 16. The rear display 16 is disposed rearward of the front seats 12. More specifically, the rear display 16 is attached to the rear surface of the bulkhead 14 of the cabin 11 with the display screen facing rearward. The rear display 16 is used by passengers seated in the rear seats 13. The rear display 16 is connected to an MM control unit 22 of the MM device 20 via an in-vehicle communication network. For example, MOST (Media Oriented Systems Transport, registered trademark) is used as this in-vehicle communication network. The operation control of the rear display 16 is executed by the MM control unit 22. In this embodiment, the MM control unit 22 controls the operation of a speaker 24 for the rear seats 13 in accordance with the display of information on the rear display 16.

[0038] <Operation terminal> 1, the vehicle 10 has an operation terminal 40 for the right seat 13R (hereinafter, operation terminal 40R) and for the left seat 13L (hereinafter, operation terminal 40L). Each operation terminal 40 is detachably provided on an arm rest 131 of the rear seat 13. One operation terminal 40 is provided on each of the right seat 13R and the left seat 13L.

[0039] As shown in FIG. 2, the operation terminal 40 includes a terminal display 41, a wireless communication unit 43, and a terminal control unit 44. <Terminal display> The terminal display 41 is configured with a touch panel. The terminal display 41 has a function of a display unit 411 that displays an operation screen for operating the rear display 16, and a function of an operation unit 412 where the passenger performs input operations. Various operation buttons are displayed on the terminal display 41 at appropriate timing.

[0040] The wireless communication unit 43 is a wireless communication module that complies with the BLE standard. The wireless communication unit 43 has a communication antenna and a communication circuit. In this embodiment, the MM device 20 and the operation terminal 40 are paired using the wireless communication units 28 and 43, thereby enabling wireless communication between them. In this embodiment, the MM device 20 receives data transmitted from the operation terminal 40 through wireless communication using the wireless communication units 28 and 43, and the operation terminal 40 receives data transmitted from the MM device 20. Specifically, the data transmitted between the MM device 20 and the operation terminal 40 includes operation data related to the operation of the MM device 20 and the rear display 16 (volume operation, selection of playback data, etc.). In this embodiment, the MM device 20, the rear display 16, and the speaker 24 are operated based on the data received by the wireless communication unit 28.

[0041] Furthermore, the data transmitted and received between the MM device 20 and the operation terminal 40 includes operation data related to the operation of the right seat 13R and the left seat 13L (more specifically, the operation of each movable part such as the seat back 33). In this embodiment, the movable parts of the right seat 13R and the left seat 13L are operated by the MM control unit 22 and a seat control device 30 (described later) based on the data received by the wireless communication unit 28. The control for operating the right seat 13R and the left seat 13L will be described in detail later.

[0042] <Terminal control unit> As the terminal control unit 44, for example, a micro control unit is used. The terminal control unit 44 includes a processor and a storage unit 45. The storage unit 45 includes a ROM and a RAM. Control programs and data are stored in the storage unit 45. The terminal control unit 44 executes various controls related to the operation control of the operation terminal 40, such as the operation control of the terminal display 41 and the operation control of the wireless communication unit 43.

[0043] The terminal control unit 44 transmits operation data related to the operation of the rear display 16 to the MM control unit 22 of the MM device 20 through wireless communication using the wireless communication unit 43. The MM control unit 22 controls the operation of the rear display 16 based on the operation data received from the operation terminal 40.

[0044] Also, the terminal control unit 44 transmits operation data related to the operations of the right seat 13R and the left seat 13L to the MM control unit 22 of the MM device 20 through wireless communication using the wireless communication unit 43. The MM control unit 22 and the seat control device 30 control the operations of the right seat 13R and the left seat 13L based on the operation data received from the operation terminal 40.

[0045] In this embodiment, the MM control unit 22 of the MM device 20 acquires operation information (specifically, operation data) related to the input operations of the passengers via the terminal display 41 and the terminal control unit 44, and controls the display of the rear display 16 based on the operation data. Also, the terminal control unit 44 of the operation terminal 40 acquires operation information (specifically, operation data) related to the input operations of the passengers via the terminal display 41, and controls the display of the terminal display 41 based on the operation data.

[0046] In this embodiment, an operation screen for operating the rear display 16 is displayed on the terminal display 41 of the operation terminal 40. Then, the operation terminal 40 is operated through the touch operation of the terminal display 41 by the passenger.

[0047] <Operation of MM device> Hereinafter, the display modes of the rear display 16 and the terminal display 41 will be described together with the operation mode of the operation terminal 40 by the passenger in the rear seat 13 with reference to Figs. 3(a) and 3(b).

[0048] As shown in FIG. 3(a), various display areas are set on the terminal display 41, arranged in the order of a “menu” area 50, a “function selection” area 52, and an “operation section” area 53 from one end (the top end of FIG. 3(a)) to the other end.

[0049] The "menu" area 50 is an area that is touched by a passenger when selecting an operation target by the operation terminal 40. Fig. 3(a) shows a display state of the "menu" area 50 when "audio" is selected as an operation target by the operation terminal 40.

[0050] The "function selection" area 52 is an area where an operation screen for selecting a function to be operated by the operation terminal 40 is displayed. The name of the function currently selected is displayed in the "function selection" area 52. In the example shown in Fig. 3(a), "FM radio" is displayed.

[0051] Further, in the "function selection" area 52, a pull-down button 522 is displayed. The pull-down button 522 is displayed on a side portion of the "function selection" area 52 (the right portion in FIG. 3(a)). As shown in FIG. 4, when the pull-down button 522 is touched, a pull-down menu 523 is displayed. The pull-down menu 523 displays AM radio, FM radio, television, DISC (CD / DVD), and Bluetooth (registered trademark). In this embodiment, the occupant performs a touch operation to select a function to be used from the pull-down menu 523. Then, the name of the selected function is displayed in the "function selection" area 52.

[0052] As shown in Fig. 3(b), rear display 16 displays information related to a function selected through operation of operation terminal 40. In the example shown in Fig. 3(b), rear display 16 displays a screen showing information related to the FM radio function (for example, the name of the broadcasting station, the frequency of the broadcasting station, and program content).

[0053] As shown in Fig. 3(a), an operation screen for the function selected by the occupant is displayed in the "operation unit" area 53. In the example shown in Fig. 3(a), the "operation unit" area 53 displays a reception frequency 531, a channel button 532 operated to select a preset channel, and a station selection button 533 operated to select a radio station. The "operation unit" area 53 also displays a volume adjustment button 534 operated to adjust the volume.

[0054] In this embodiment, the operation of the speaker 24 for the rear seat 13 is controlled in response to the passenger's operation of the terminal display 41. In the example shown in Fig. 3(a) and Fig. 3(b), the speaker 24 emits FM radio sound at a station selected by the passenger and at a volume adjusted by the passenger.

[0055] As shown in Figures 1, 2 and 5, in this embodiment, the right seat 13R and the left seat 13L are configured as electric seats. In this embodiment, the right seat 13R and the left seat 13L correspond to specific operating devices that operate to improve the habitability of the vehicle.

[0056] The specific structures of the right seat 13R and the left seat 13L will be described below. Note that since the right seat 13R and the left seat 13L have the same structure, the specific structure of the left seat 13L will be described below, and a description of the specific structure of the right seat 13R will be omitted.

[0057] As shown in FIG. 5, the left seat 13L has a seat body 32, a seat back 33, a seat portion , and an ottoman . 1, 2, and 5, the seat body 32 has a seat slide portion 321 (FIG. 2). The seat slide portion 321 includes a slide drive motor and a slide mechanism (both not shown). In this embodiment, the seat control device 30 controls the operation of the seat slide portion 321. Through the operation control of the seat slide portion 321, the position of the seat body 32 in the front-rear direction X is adjusted.

[0058] <Seat back> The seat back 33 has a seat back portion 331 (FIG. 2). The seat back portion 331 changes the angle of the seat back 33 with respect to the seat portion 34. The seat back portion 331 includes a seat back drive motor and a seat back angle operating mechanism (both not shown). In this embodiment, the operation of the seat back portion 331 is controlled by the seat control device 30. Through the operation control of the seat back portion 331, the angle of the seat back 33 is changed within a range between a maximum inclination angle and a minimum inclination angle.

[0059] <Seat> The seat 34 has a seat cushion portion 341 (FIG. 2). The seat cushion portion 341 changes the position of the seat cushion in the up-down direction. The seat cushion portion 341 includes a seat cushion drive motor and a seat cushion operation mechanism (both not shown). In this embodiment, the seat control device 30 controls the operation of the seat cushion portion 341. Through the operation control of the seat cushion portion 341, the position of the seat cushion in the up-down direction is changed.

[0060] <Ottoman> The ottoman 35 includes an ottoman section 351 (FIG. 2). The ottoman section 351 includes an ottoman drive motor and an ottoman operating mechanism (both not shown). In this embodiment, the operation of the ottoman section 351 is controlled by the seat control device 30. Through the operation control of the ottoman section 351, the angle of the ottoman 35 is changed within a range between an angle close to horizontal and an angle close to vertical.

[0061] <Lumbar support> The seat back 33 incorporates a lumbar support 36. The lumbar support 36 is operatively connected to a lumbar support portion 361. The lumbar support portion 361 includes a vertical drive motor and a vertical operation mechanism (neither of which are shown). The lumbar support portion 361 also includes a front-rear drive motor and a front-rear operation mechanism (neither of which are shown).

[0062] In this embodiment, the seat control device 30 executes operation control of the lumbar support portion 361. Through the operation control of the lumbar support portion 361, the position of the lumbar support 36 in the up-down direction is changed, and the position of the lumbar support 36 in the front-rear direction X is also changed.

[0063] <Seat control device> The vehicle 10 is provided with a seat control device 30. The seat control device 30 is configured, for example, by a micro control unit. The seat control device 30 includes a processor and a memory unit 31. The memory unit 31 includes a ROM and a RAM. The memory unit 31 stores control programs and data. The seat control device 30 executes various controls related to the operation control of the rear seat 13, such as the operation control of each movable part of the right seat 13R and the operation control of each movable part of the left seat 13L.

[0064] The seat control device 30 is connected to the MM control unit 22 of the MM device 20 via an in-vehicle communication network. As the in-vehicle communication network, a controller area network (CAN) or a local interconnect network (LIN) is adopted. In this embodiment, when the MM control unit 22 of the MM device 20 receives various operation signals from the operation terminals 40R, 40L via the wireless communication unit 43, it relays and transmits the operation signals to the seat control device 30 via the in-vehicle communication network.

[0065] <Operation of electric seats> In this embodiment, the position and angle of each movable part in the right seat 13R can be changed by operating the operation terminal 40R. Also, the position and angle of each movable part in the left seat 13L can be changed by operating the operation terminal 40L.

[0066] Specifically, an operation screen for operating the right seat 13R (or the left seat 13L) is displayed on the terminal display 41 of the operation terminal 40R, 40L. The operation terminal 40R, 40L is operated through a touch operation of the terminal display 41 by the occupant. Then, the position and angle of each movable part in the right seat 13R (or the left seat 13L) are changed in response to the operation of the operation terminal 40R, 40L.

[0067] Hereinafter, the display mode of the terminal display 41 when the right seat 13R or the left seat 13L is operated will be described together with the operation mode of the operation terminal 40 by the passenger in the rear seat 13 with reference to FIG.

[0068] The display mode and operation mode of the terminal display 41 are the same when the right seat 13R is operated by the operation terminal 40R and when the left seat 13L is operated by the operation terminal 40L. Therefore, the following will describe the display mode and operation mode of the terminal display 41 when the left seat 13L is operated by the operation terminal 40L, and will omit a description of the display mode and operation mode of the terminal display 41 when the right seat 13R is operated by the operation terminal 40R.

[0069] 6, the currently selected operation target (specifically, a sheet) of the operation terminal 40L is displayed in a "menu" area 50 of the terminal display 41. Also, the currently selected function (specifically, an adjustment) is displayed in a "function selection" area 52 of the terminal display 41.

[0070] In the "operation section" area 53 of the terminal display 41, an image 60 representing the left seat 13L and a plurality of operation points A to E corresponding to each movable portion of the left seat 13L are displayed. Operation point A is an operation switch corresponding to the seat slide portion 321, and is an operation switch that is touched when adjusting the position of the seat main body 32 in the front-rear direction X. Operation point B is an operation switch corresponding to the seat back portion 331, and is an operation switch that is touched when adjusting the angle of the seat back 33. Operation point C is an operation switch corresponding to the seat cushion portion 341, and is an operation switch that is touched when adjusting the vertical position of the seat cushion. Operation point D is an operation switch corresponding to the ottoman portion 351, and is an operation switch that is touched when adjusting the angle of the ottoman 35. Operation point E is an operation switch corresponding to the lumbar support portion 361, and is an operation switch that is touched when adjusting the position of the lumbar support 36.

[0071] When operating the left seat 13L, first, one of the operation points A to E is touched based on the part whose position (or angle) is to be adjusted. In response to this touch operation, an arrow indicating the movable direction of the movable part corresponding to the operation point (one of A to E) selected by the touch operation is displayed in the "operation part" area 53. Then, when this arrow is touched, the position (or angle) of the movable part is changed.

[0072] 6 shows a display state of the terminal display 41 when an occupant touches the operation point A to adjust the position of the seat body 32 in the front-rear direction X. In this case, in response to the touch operation of the operation point A, arrows indicating the movable directions of the seat body 32, specifically, a forward arrow 61 and a rearward arrow 62, are displayed in the "operation unit" area 53. When the forward arrow 61 or the rearward arrow 62 is touched, the position of the seat body 32 in the front-rear direction X is changed through the operation control of the seat slide portion 321. In more detail, when the forward arrow 61 is touched, the seat body 32 moves forward. When the rearward arrow 62 is touched, the seat body 32 moves rearward.

[0073] <Seatbelt warning device> As shown in FIG. 1, the vehicle 10 is provided with seat belt devices 17 for each of all seats (specifically, the driver's seat 12D, the passenger seat 12S, the right seat 13R, and the left seat 13L) to hold a seated occupant.

[0074] Two warning lights 17D, 17S are provided in front of the front seat 12 in the cabin 11. The warning light 17D is for warning the occupant in the driver's seat 12D that their seat belt is not fastened. The warning light 17S is for warning the occupant in the passenger seat 12S that their seat belt is not fastened.

[0075] As shown in FIGS. 1 and 2, a vehicle 10 is provided with various sensors. Specifically, the vehicle 10 is provided with a speed sensor 72 for detecting a traveling speed SPD. The passenger seat 12S, the right seat 13R, and the left seat 13L are provided with seating sensors 73 for detecting whether an occupant is seated. All the seats of the vehicle 10 are provided with a buckle switch 74 for detecting whether a seat belt is fastened. Specifically, each seat is provided with a buckle for a seat belt, and the buckle switch 74 is provided on the buckle. The buckle switch 74 outputs an "on" signal when the metal fitting of the seat belt is inserted into the buckle, and outputs an "off" signal when the metal fitting of the seat belt is removed from the buckle. In the device of this embodiment, when the buckle switch 74 outputs an "on" signal, it is detected that the seat belt is fastened, and when the buckle switch 74 outputs an "off" signal, it is detected that the seat belt is not fastened (not fastened).

[0076] The vehicle 10 has an electronic control device 70. The electronic control device 70 is configured by, for example, a micro control unit. The electronic control device 70 includes a processor and a storage unit 71. The storage unit 71 includes a ROM and a RAM. The storage unit 71 stores control programs and data. The electronic control device 70 takes in output signals from various sensors. The electronic control device 70 executes various calculations based on the output signals from the various sensors. Then, based on the calculation results, the electronic control device 70 executes a front seat warning control for warning an occupant in the front seat 12 that the seat belt is not fastened, and a rear seat warning control for warning an occupant in the rear seat 13 that the seat belt is not fastened. The electronic control device 70 is connected to the MM control unit 22 of the MM device 20 via an in-vehicle communication network. As the in-vehicle communication network, CAN or LIN is adopted. In this embodiment, the electronic control device 70 corresponds to a warning control unit.

[0077] <Front seat warning control> The front seat warning control is executed as follows. In the front seat warning control, it is determined whether or not both of the following [Condition A1] and [Condition B1] are satisfied.

[0078] [Condition A1] The seat belt of the driver's seat 12D is not fastened. Specifically, the buckle switch 74 of the seat belt device 17 of the driver's seat 12D outputs an "OFF" signal. [Condition A2] The vehicle 10 is traveling. Specifically, the traveling speed SPD is equal to or greater than a predetermined speed (for example, 2 km / hour).

[0079] When both [Condition A1] and [Condition A2] are satisfied, the warning light 17D is turned on. This warns the occupant in the driver's seat 12D that the seat belt is not fastened. Note that when at least one of [Condition A1] and [Condition A2] is not satisfied, the warning light 17D is not turned on.

[0080] In the front seat warning control, it is determined whether or not all of the following [Condition B1], [Condition B2], and [Condition B3] are satisfied. [Condition B1] An occupant is seated in the passenger seat 12S. Specifically, the seating sensor 73 of the passenger seat 12S detects that an occupant is seated.

[0081] [Condition B2] The seat belt of the passenger seat 12S is not fastened. Specifically, the buckle switch 74 of the seat belt device 17 of the passenger seat 12S outputs an "OFF" signal. [Condition B3] The vehicle 10 is traveling. Specifically, the traveling speed SPD is equal to or greater than a predetermined speed (for example, 2 km / hour).

[0082] When all of [Condition B1] to [Condition B3] are satisfied, the warning light 17S is turned on. This warns the occupant in the passenger seat 12S that the seat belt is not fastened. Note that when at least one of [Condition B1] to [Condition B3] is not satisfied, the warning light 17S is not turned on.

[0083] <Rear seat warning control> The rear seat warning control is executed as follows. 7 shows the procedure for executing the processing related to the rear seat warning control (rear seat warning control processing). A series of processing shown in the flowchart in the same drawing is executed by the electronic control unit 70 as processing at predetermined intervals.

[0084] The rear seat warning control process is executed separately for the right seat 13R and the left seat 13L. The rear seat warning control process for the right seat 13R and the rear seat warning control process for the left seat 13L are basically the same in processing content. Therefore, the following describes the execution procedure of the rear seat warning control process for the left seat 13L, and a detailed description of the execution procedure of the rear seat warning control process for the right seat 13R is omitted.

[0085] As shown in FIG. 7, in this process, first, it is determined whether or not all of the following [Condition C1], [Condition C2], and [Condition C3] are satisfied (S11 to S13). [Condition C1] An occupant is seated in the left seat 13L. Specifically, the seating sensor 73 of the left seat 13L detects that an occupant is seated.

[0086] [Condition C2] The seat belt of the left seat 13L is not fastened. Specifically, the buckle switch 74 of the seat belt device 17 of the left seat 13L outputs an "OFF" signal. [Condition C3] The vehicle 10 is traveling. Specifically, the traveling speed SPD is equal to or greater than a predetermined speed (for example, 2 km / hour).

[0087] Then, if at least one of [Condition C1] to [Condition C3] is not satisfied (S11: NO, or S12: NO, or S13: NO), the normal mode, which does not restrict the operating function, is set as the control mode for operating the left seat 13L (S14).

[0088] On the other hand, if all of [Condition C1] to [Condition C3] are satisfied (S11: YES, S12: YES, and S13: YES), a function restriction mode that restricts the operation function is set as the control mode for the operation of the left seat 13L (S15).

[0089] <Restricted functionality mode> 8, in the function restriction mode, a warning screen 65 that warns that the seat belt is not fastened is displayed on the terminal display 41 of the operation terminal 40L. More specifically, the warning screen 65 is displayed in the "operation section" area 53 of the terminal display 41 so as to cover the image 60 (see FIG. 6) representing the left seat 13L and the multiple operation points A to E.

[0090] In addition, in the function restriction mode, the operation of the left seat 13L by the operation terminal 40L is prohibited. In detail, when the function restriction mode is set, the operation screen for operating the left seat 13L is made inoperable. This makes it impossible to operate the left seat 13L by the operation terminal 40L.

[0091] In this embodiment, when the function restriction mode is set in the rear seat warning control processing for the right seat 13R, the above-mentioned warning screen 65 is displayed on the terminal display 41 of the operation terminal 40R for the right seat 13R, and operation of the right seat 13R by the same operation terminal 40R is prohibited.

[0092] In this embodiment, even in the function limited mode, it is possible to switch the device to be operated by touching the operation terminal 40L (more specifically, the "menu" area 50) in the same way as in the normal mode. Also, in the function limited mode, it is possible to operate the operation screen (see FIG. 3(a)) displayed on the terminal display 41 when "audio" is selected as the device to be operated.

[0093] <Normal mode> In the normal mode, the warning screen 65 is not displayed on the terminal display 41 of the operation terminal 40L (see FIG. 6), and there is no restriction on the operation of the left seat 13L by the operation terminal 40L. In this embodiment, when the normal mode is set in the rear seat warning control process for the right seat 13R, the warning screen 65 is not displayed on the terminal display 41 of the operation terminal 40R, and there is no restriction on the operation of the right seat 13R by the operation terminal 40R.

[0094] <Action and effect> According to this embodiment, when an occupant seated in the left seat 13L is not fastening the seat belt while the vehicle 10 is traveling, a warning screen 65 is displayed on the terminal display 41 (more specifically, an operation screen for operating the left seat 13L) of the operation terminal 40L used by the occupant. Therefore, when the occupant looks at the operation terminal 40L to operate the left seat 13L, the occupant will see the warning screen 65 displayed on the terminal display 41. This allows the occupant in the left seat 13L to recognize that the seat belt is not fastened.

[0095] Moreover, in this embodiment, in conjunction with the display of the warning screen 65 on the terminal display 41 of the operation terminal 40L, operation of the left seat 13L by the terminal display 41 of the same operation terminal 40L is prohibited. In this embodiment, the display of the warning screen 65 and the restriction on operation of the left seat 13L are performed by using the common operation terminal 40L.

[0096] Therefore, when an occupant seated in the left seat 13L does not fasten the seat belt while the vehicle 10 is traveling, the occupant first becomes aware that the seat belt is not fastened based on the warning screen 65 displayed on the terminal display 41 of the operation terminal 40L. After that, in a state in which the occupant in the left seat 13L recognizes that the seat belt is not fastened, operation of the left seat 13L using the operation terminal 40L is prohibited.

[0097] Therefore, even if the operation of the left seat 13L is prohibited when the occupant of the left seat 13L is not fastening the seat belt, the occupant will perceive this operation restriction as an event associated with the seat belt not being fastened. This reduces the discomfort felt by the occupant due to the operation restriction of the left seat 13L being implemented.

[0098] According to this embodiment, it is possible to notify the occupant in the left seat 13L that the seat belt is not fastened while suppressing discomfort to the occupant, and to urge the occupant to fasten the seat belt.

[0099] Furthermore, according to this embodiment, when an occupant seated in the right seat 13R is not fastening the seat belt while the vehicle 10 is traveling, a warning screen 65 is displayed on the terminal display 41 (more specifically, the operation screen for operating the right seat 13R) of the operation terminal 40R used by the occupant. Therefore, when the occupant looks at the operation terminal 40R to operate the right seat 13R, the occupant will see the warning screen 65 displayed on the terminal display 41. This allows the occupant in the right seat 13R to recognize that the seat belt is not fastened.

[0100] Moreover, in this embodiment, in conjunction with the display of the warning screen 65 on the terminal display 41 of the operation terminal 40R, operation of the right seat 13R via the terminal display 41 of the same operation terminal 40R is prohibited. In this embodiment, the display of the warning screen 65 and the restriction on operation of the right seat 13R are performed using the common operation terminal 40R.

[0101] Therefore, when an occupant seated in the right seat 13R does not fasten the seat belt while the vehicle 10 is traveling, the occupant first becomes aware that the seat belt is not fastened based on the warning screen 65 displayed on the terminal display 41 of the operation terminal 40R. After that, in a state in which the occupant in the right seat 13R recognizes that the seat belt is not fastened, operation of the right seat 13R using the operation terminal 40R is prohibited.

[0102] Therefore, even though the operation of the right seat 13R is prohibited when the occupant of the right seat 13R is not fastening the seat belt, the occupant will perceive this operation restriction as an event associated with the seat belt not being fastened. This reduces the discomfort felt by the occupant due to the operation restriction of the right seat 13R being implemented.

[0103] According to this embodiment, it is possible to notify the occupant in the right seat 13R that the seat belt is not fastened while suppressing discomfort to the occupant, and to encourage the occupant to fasten the seat belt.

[0104] According to this embodiment, the following advantageous effects can be obtained. (1) When an occupant in the rear seat 13 is not fastening the seat belt while the vehicle 10 is traveling, a warning screen 65 is displayed on the terminal display 41 of the operation terminal 40, and operation of the rear seat 13 by the operation terminal 40 is restricted. Therefore, it is possible to notify the occupant that the seat belt is not fastened while minimizing discomfort felt by the occupant sitting in the rear seat 13, and to encourage the occupant to fasten the seat belt.

[0105] (2) The rear seat 13, which is an electrically powered seat, is employed as a device that restricts operation by the operating terminal 40 when the seat belt is not fastened. According to this embodiment, when an occupant sitting in the rear seat 13 is not fastening the seat belt while the vehicle 10 is traveling, the operation of the rear seat 13 in which the occupant sits can be prohibited in order to notify the occupant that the seat belt is not fastened. At this time, the occupant in the rear seat 13 feels uncomfortable with the movement of the rear seat 13 that is in direct contact with his or her body. This makes it possible to reliably notify the occupant in the rear seat 13 that the seat belt is not fastened.

[0106] (3) The vehicle 10 has two rear seats 13, specifically, a left seat 13L and a right seat 13R. The seat belt device 17, the seating sensor 73, the buckle switch 74, and the operation terminal 40 are provided corresponding to the left seat 13L and the right seat 13R, respectively. The electronic control device 70 executes a process of displaying a warning screen 65 on the terminal display 41 and a process of prohibiting the operation of the electric seat by the terminal display 41, corresponding to each of the left seat 13L and the right seat 13R, respectively. According to this embodiment, by using the operation terminals 40R, 40L provided for the right seat 13R and the left seat 13L, respectively, it is possible to notify the occupant of the right seat 13R and the occupant of the left seat 13L that the seat belt is not fastened, respectively. This makes it possible to notify an occupant sitting in either the right seat 13R or the left seat 13L that their seat belt is not fastened, without causing discomfort to the occupant sitting in the other of the right seat 13R and the left seat 13L.

[0107] <Example of change> The above embodiment can be modified as follows: The above embodiment and the following modifications can be combined with each other to the extent that no technical contradiction occurs.

[0108] The seating detection unit that detects whether or not an occupant is seated in the rear seat 13 is not limited to the seating sensor 73, but may be a camera that captures an image of the rear seat 13 and an image processing device that performs image processing based on the captured image. In short, anything that can detect whether or not an occupant is seated in the rear seat 13 can be used as the seating detection unit.

[0109] The seat belt fastening detector that detects whether the seat belt is fastened is not limited to the buckle switch 74, but may be a camera and an image processing device. In short, anything that can detect whether the seat belt is fastened by the passenger in the rear seat 13 can be used as the seat belt fastening detector.

[0110] Instead of providing one operation terminal 40 for each of the right seat 13R and the left seat 13L, a single operation terminal shared by both the right seat 13R and the left seat 13L may be provided. Instead of providing the operation terminal 40 with a touch panel type terminal display 41 having the functions of the display unit 411 and the operation unit 412, the operation terminal 40 may be provided with a display as the display unit and a physical switch as the operation unit separately.

[0111] In the function restriction mode, instead of prohibiting the operation of the rear seat 13 by the operation terminal 40, the operation of the rear seat 13 by the operation terminal 40 may be restricted, for example, by extremely slowing down the operation speed of the rear seat 13 when the operation terminal 40 is operated. With this configuration, when an occupant sitting in the rear seat 13 is not wearing a seat belt while the vehicle 10 is traveling, the operation of the rear seat 13 in which the occupant is sitting can be restricted in order to notify the occupant that the seat belt is not fastened. At this time, the occupant in the rear seat 13 feels uncomfortable with the operation of the rear seat 13. This makes it possible to notify the occupant in the rear seat 13 that the seat belt is not fastened.

[0112] As a device for restricting operation by the operating terminals 40R, 40L when the seat belt is not fastened, an audiovisual device (specifically, the radio receiver 35, the television receiver 26, the disk player 27, etc.) can be used.

[0113] In this case, as shown in Fig. 9, when the function restriction mode is set, a warning screen 65 warning that the seat belt is not fastened may be displayed on the terminal display 41 of the operation terminal 40L, 40R. Also, when the function restriction mode is set, operation of the audiovisual equipment by the operation terminal 40L, 40R may be prohibited. For example, a state may be set in which it is not possible to operate the operation screen (see Fig. 3(a)) for operating the audiovisual equipment. This makes it impossible to operate the audiovisual equipment by the operation terminal 40L, 40R. In this configuration, the audiovisual equipment corresponds to a specific operating device that operates to improve the habitability of the vehicle.

[0114] Here, when video and audio are reproduced by an audiovisual device, the occupants tend to concentrate on the reproduced video and audio. Therefore, there is a risk that the occupants will have difficulty noticing the seat belt warning. According to the above configuration, by restricting the operation of such an audiovisual device and making the occupants feel uncomfortable, it is possible to reduce the occupants' concentration on the video and audio reproduced by the audiovisual device. This makes it possible to direct the occupants' attention to the seat belt warning.

[0115] When the above configuration is adopted, the seat belt warning device of the above embodiment can also be applied to vehicles having rear seats that are operated by an operating member other than an operating terminal (e.g., a physical switch), or vehicles in which the rear seats are manually operated seats.

[0116] In addition, the devices that limit operation by the operating terminals 40R, 40L when the seat belts are not fastened are not limited to either the rear seat 13 or the audiovisual equipment, but may be both the rear seat 13 and the audiovisual equipment.

[0117] The seat belt warning device according to the above embodiment can also be applied to a vehicle that does not have a rear display 16. A power-operated openable / closable rear seat monitor provided on the roof of the vehicle 10 can be used as a device that restricts operation by the operation terminals 40R, 40L when the seat belt is not fastened. In this case, the following configuration may be used. The rear seat monitor is opened and closed by the operation terminals 40R, 40L. In the function restriction mode, a warning screen 65 is displayed on the terminal display 41 of the operation terminals 40R, 40L to warn that the seat belt is not fastened. In the function restriction mode, the operation of opening and closing the rear seat monitor by the operation terminals 40R, 40L is prohibited. In detail, when the function restriction mode is set, the operation screen for opening and closing the rear seat monitor cannot be operated. This makes it impossible to open and close the rear seat monitor by the operation terminals 40R, 40L. In this configuration, the rear seat monitor corresponds to the specific operating device.

[0118] The seat belt warning device according to the above embodiment can also be applied to a vehicle in which a plurality of in-vehicle devices (for example, audiovisual devices, lighting devices, air conditioning devices) are collectively operated through a predetermined operation of an operation terminal.

[0119] In this case, in the function restriction mode, a warning screen 65 is displayed on the terminal display 41 of the operation terminal 40, warning that the seat belt is not fastened. Also, in the function restriction mode, collective operation of multiple in-vehicle devices by the operation terminal 40 is prohibited. In detail, when the function restriction mode is set, the operation screen for collective operation of multiple in-vehicle devices is made unable to be operated. As a result, collective operation of multiple in-vehicle devices by the operation terminal 40 becomes impossible. In the above configuration, the multiple in-vehicle devices correspond to specific operating devices that are operated to improve the habitability of the vehicle.

[0120] The seat belt warning device according to the above embodiment can also be applied to a vehicle having rear seats arranged in the vehicle width direction Y to accommodate three or more occupants. The seat belt warning device according to the above embodiment can also be applied to a vehicle having seats arranged in three or more rows in the front-rear direction X. In this vehicle, the front row seats correspond to the front seats, and the seats in the second row and onward correspond to the rear seats.

[0121] The seat belt warning device according to the above embodiment can also be used as a device that warns front seat occupants not to fasten their seat belts. In this case, the front display 21 can be used as an operation terminal having a display unit that displays an operation screen for operating the specific operating device and an operation unit through which the occupant sitting in the seat performs input operations.

[0122] For example, the following warning control process may be executed when the vehicle 10 is traveling, an occupant is seated in the driver's seat 12D, and the occupant seated in the driver's seat 12D is not wearing a seat belt. In this warning control process, a warning screen indicating that the seat belt is not fastened is displayed on the display unit of the operation terminal, and the operation of a specific operating device by the operation unit of the operation terminal is restricted. In this case, the time when both [Condition A1] and [Condition A2] are satisfied can be when the vehicle 10 is traveling, an occupant is seated in the driver's seat 12D, and the occupant seated in the driver's seat 12D is not wearing a seat belt. According to this configuration, it is possible to notify the occupant that the seat belt is not fastened while suppressing discomfort caused to the occupant seated in the driver's seat 12D, and to encourage the occupant to fasten the seat belt.

[0123] For example, the following warning control process may be executed when the vehicle 10 is traveling, an occupant is seated in the passenger seat 12S, and the occupant seated in the passenger seat 12S is not wearing a seat belt. In this warning control process, a warning screen indicating that the seat belt is not fastened is displayed on the display unit of the operation terminal, and the operation of a specific operating device by the operation unit of the operation terminal is restricted. In this case, the time when all of the [Condition B1] to [Condition B3] are satisfied can be when the vehicle 10 is traveling, an occupant is seated in the passenger seat 12S, and the occupant seated in the passenger seat 12S is not wearing a seat belt. With this configuration, it is possible to notify the occupant that the seat belt is not fastened while suppressing discomfort caused to the occupant seated in the passenger seat 12S, and to encourage the occupant to fasten the seat belt. [Explanation of symbols]

[0124] 10. Vehicle 11. Cabin 12...Front seat 12D…Driver's seat 12S…Passenger seat 13...Rear seat 13R…Right seat 13L…Left seat 14...Bulkhead 15. Mobile terminal 151, 28, 43…Wireless communication section 16…Rear display 17...Seat belt device 17D,17S…warning light 20…MM equipment 21…Front display 22...MM control section 23,31,45,71...Storage section 24…Speaker 25…Radio receiver 26…TV receiver 27...Disc playback section 30...Seat control unit 32…Seat body 321…Seat slide section 33…Seat back 331…Seat back 34... Seat part 341…Seat surface 35…Ottoman 351…Ottoman section 36…Lumbar support 361…Lumbar support section 40, 40R, 40L...Operation terminal 41...Terminal display 411...Display section 412...Operation unit 44...Terminal control unit 50…"Menu" area 52…"Function selection" area 522...Pull-down button 523...Pull-down menu 53…“Operation unit” area 531…receiving frequency 532...Channel button 533…Channel selection button 534...Volume control button 60...Images 61...forward arrow 62...Backward Arrow 65...Warning screen 70...Electronic control device 72...Speed ​​sensor 73...Seat sensor 74…Buckle switch

Claims

1. Seats and a seat belt for holding an occupant seated in the seat; A specific operating device that operates to improve vehicle habitability; The present invention is applied to a vehicle including a display unit that displays an operation screen for operating the specific operating device, and an operation terminal having an operation unit through which an input operation is performed by an occupant seated in the seat, A seat belt warning device comprising: a warning control unit that, when the vehicle is traveling, an occupant is seated in the seat, and the occupant seated in the seat is not wearing the seat belt, displays a warning screen on the display unit indicating that the seat belt is not fastened and limits the operation of the specific operating device by the operating unit.

2. The front seats and A rear seat disposed rearward of the front seat; a seat belt for holding an occupant seated in the rear seat; a seating detection unit that detects whether or not an occupant is seated in the rear seat; a seat belt fastening detection unit for detecting whether the seat belt is fastened or not; A specific operating device that operates to improve vehicle habitability; The present invention is applied to a vehicle including an operation terminal having a display unit that displays an operation screen for operating the specific operating device, and an operation unit through which an input operation is performed by a passenger seated in the rear seat, A seat belt warning device comprising: a warning control unit that, when the vehicle is traveling, the seating detection unit detects that an occupant is seated in the rear seat, and the wearing detection unit detects that the seat belt is not fastened, displays a warning screen on the display unit indicating that the seat belt is not fastened and limits the operation of the specific operating device by the operating unit.

3. The specific operating device is an electric seat constituting the rear seat.

3. The seat belt warning device of claim 2.

4. the vehicle has a plurality of rear seats, and the seat belt, the seating detection unit, the wearing detection unit, and the operation terminal are provided corresponding to each of the plurality of rear seats, The warning control unit executes the following operations: displaying the warning screen on the display unit and restricting the operation of the specific operating device by the operation unit, for each of the plurality of rear seats.

4. A seat belt warning device according to claim 2 or 3.

Images