Vehicle lighting device

Abstract

Vehicle lighting device comprising: a light source (11) mounted on a vehicle (2); a first detection unit (13; 17) configured to detect a predetermined state of the vehicle (2) or a user; characterized by a drive unit (12) configured to drive the light source (11) to move a lighting position; a controller (16) configured to initiate the switching on of the light source (11) and the control of the drive unit (12) to move a lighting position of the light source (11) along a predetermined track according to the detection by the first detection unit (13; 17); and a second detection unit (14; 15) configured to detect a predetermined movement of the user, wherein when the second detection unit (14;15) detects a movement of the user, the control unit (16) controls the drive unit (12) so that an object is illuminated with which the user is then to interact, and the illumination position of the light source (11) is moved so that the predetermined track is changed according to the movement of the user detected by the second detection unit (14;15).

Description

Cross-reference to related registrations

[0001] This application is based on Japanese patent application No. 2017-147411, the contents of which are incorporated herein in full by reference. Background Technical field

[0002] The present invention relates to a vehicle lighting device. State of the art

[0003] Conventionally, a device as described in Japanese patent application no. 2010-285061 (hereinafter “JP’061”) was proposed as the vehicle lighting device mentioned above. A vehicle interior lighting device as described in JP’061 switches from one light source to another among a plurality of light sources to sequentially illuminate a plurality of operating elements in a vehicle. Summary

[0004] However, the aforementioned conventional lighting system for a vehicle interior is configured to switch between multiple light sources. This means the light sources are constantly being turned on and off, causing flickering and disturbing the driver, resulting in a lack of driver-friendliness and vehicle affinity. Furthermore, the need for a large number of light sources is another disadvantage in terms of cost.

[0005] The present invention arose in view of the background described above, and one objective of the present invention is to provide a vehicle lighting device that can offer driver-friendliness and vehicle affinity at low cost.

[0006] According to one aspect, the present invention provides a vehicle lighting device comprising: a light source mounted on a vehicle; a drive unit configured to drive the light source to move a lighting position; a first detection unit configured to detect a predetermined state of the vehicle or a user; and a controller configured to initiate the switching on of the light source and the control of the drive unit to move a lighting position of the light source along a predetermined track according to the detection by the first detection unit.

[0007] The track can be set to run sequentially across a large number of objects.

[0008] The vehicle lighting device may further include a second detection unit configured to detect a predetermined movement of the user, whereby the control unit can direct the drive unit to move the lighting position of the light source so that a next object is illuminated according to the detection by the second detection unit.

[0009] The first investigative unit can determine whether the user is boarding or alighting.

[0010] The track can be set to a single object.

[0011] The single object can be a rear seat or a lifting device, and the track can be set to run sequentially over a multitude of actuating elements arranged in the rear seat or lifting device.

[0012] The first detection unit can detect a curve ahead of the vehicle while driving, the single object can be a steering wheel, and the control can move the lighting position of the light source along a track that runs in accordance with a steering angle and steering direction, so that it passes around the detected curve.

[0013] The first investigative unit can determine that the vehicle's state has changed from a stop state to a start state if the steering wheel is not in a neutral position; the single object can be the steering wheel; the control can move the lighting position of the light source along a track that follows a steering angle and direction to return the steering wheel to the neutral position.

[0014] The first detection unit can determine a state in which the user asks a question, and if an answer to the question includes a direction, the controller can move the lighting position of the light source from the specified position along a track that runs in a direction corresponding to the answer.

[0015] The first detection unit can detect a sleep state or an inattentive state of the user, and the controller can control the drive unit so that the lighting position of the light source is on the user's face, according to the detection by the first detection unit, and can move the lighting position of the light source along a predetermined track so that the lighting position of the light source is outside the user's face when the user's awakening is detected.

[0016] The vehicle lighting unit may further include a third detection unit configured to determine the user's view based on an image of the user, whereby the controller can move the lighting position of the light source to a position within the user's view as determined by the third detection unit, and move the lighting position of the light source from that position along the specified track.

[0017] As described above, according to the present invention, by moving a lighting position of a light source along a predetermined track, a vehicle lighting device can be provided which can offer driver-friendliness as well as vehicle affinity at low cost. List of characters Fig. Figure 1 is a block diagram of a vehicle lighting device according to the present invention in a first embodiment; Fig. Figure 2 is an explanatory illustration to clarify a position where a lighting unit is located. Fig. 1 is attached; Fig. Figure 3 shows details of the lighting unit and a drive unit. Fig. 1; Fig. Figure 4 is a flowchart showing an introductory instruction sequence for a microcomputer. Fig. 1 represents; Fig. Figure 5 is an explanatory illustration to clarify the processes of the vehicle lighting device. Fig. 1 according to the first embodiment; Fig. 6 is a flowchart that shows an exit-instruction sequence for the microcomputer from Fig. 1 represents; Fig. Figure 7 is a block diagram of a vehicle lighting device according to the present invention in a second embodiment; Fig. Figure 8 is an explanatory illustration to clarify the processes of the vehicle lighting device. Fig. 7 according to the second embodiment; Fig. 9. Is an explanatory illustration to clarify the processes of the vehicle lighting device made of Fig. 7 according to a third embodiment; Fig. Figure 10 is a block diagram of a vehicle lighting device according to the present invention in a fourth embodiment; Fig. Figure 11 is an explanatory illustration to clarify the processes of the vehicle lighting device. Fig. 10; and Fig. Figure 12 is an explanatory illustration to clarify the processes of the vehicle lighting device. Fig. 10. Detailed description (first example)

[0018] In the following, a first embodiment of the present invention is described with reference to Fig. 1 to Fig. 3 described. Fig. Figure 1 is a block diagram of a vehicle lighting device according to the present invention in the first embodiment. A vehicle lighting device 1 includes a lighting unit 11 , which serves as a light source, a drive unit 12 , an interior light switch 13 , which serves as a first investigative unit, a seat switch 14 and a motor switch 15 , which serve as second investigative units, and a microcomputer 16 .

[0019] The lighting unit 11 It includes a light source, for example an LED, and emits a spotlight. L , which is projected in the form of a circle, as in Fig. 2 and Fig. 3 shown. The lighting unit 11For example, it is suspended from the ceiling of a vehicle in a rotatable manner.

[0020] The drive unit 12 includes a first rotary motor M1 , which is the lighting unit 11 about a first axis of rotation Z1 rotates, and a second rotary motor M2 , which is the lighting unit 11 around a second axis of rotation Z2 rotates, which is the first axis of rotation Z1 crosses, as in Fig. 3 shown. The first axis of rotation Z1 and the second axis of rotation Z2 intersect an optical axis of the lighting unit 11 Consequently, the drive unit 12 the lighting unit 11 move 360 ​​degrees.

[0021] The interior light switch 13 It is a switch that is turned on and off according to the opening and closing of a vehicle door. The seat switch 14is a switch that is turned on when a user sits in a driver's seat, which is a seat in a vehicle.

[0022] The motor switch 15 is a switch that is turned on when a user performs a starting operation of a starter switch.

[0023] The microcomputer 16 It includes a CPU, a ROM, a RAM, and the like, and has control over the entire vehicle lighting system. 1 The microcomputer 16 is connected to the interior light switch 13 , the seat switch 14 and the motor switch 15 connected, and information about turning these switches on / off is sent to the microcomputer 16 entered. Furthermore, the microcomputer 16 with the lighting unit 11 and the drive unit 12 connected and controls the lighting unit 11and the drive unit 12 .

[0024] If the microcomputer 16 The microcomputer determines when a user has entered the building and controls the process. 16 the lighting unit 11 and the drive unit 12 to select a lighting position for the lighting unit 11 to move along a predefined path and, for example, sequentially illuminate the user's feet, a driver's seat, a starter switch, and a steering wheel (objects) in that order. Thus, the microcomputer offers 16 A user guide. If the microcomputer 16 Furthermore, if it determines that a user will exit the vehicle, the microcomputer controls 16 the lighting unit 11 and the drive unit 12 to select a lighting position for the lighting unit 11to move along a predefined path and, for example, sequentially illuminate the user's seat and feet in that order. Thus, the microcomputer offers 16 An exit aid for the user.

[0025] The following section details the processes of the vehicle lighting system. 1 , which were roughly described above, with reference to Fig. 4 to Fig. 6 described. When a user opens a door to enter a vehicle, the interior light switch is activated first. 13 switched on. When the interior light switch 13 is switched on while the seat switch 14 The microcomputer determines whether the vehicle is switched off and no one is in it. 16 The system logs in a user and executes a login guide sequence that is in Fig. 4 is shown.

[0026] The microcomputer 16controls the lighting unit 11 and the drive unit 12 to create a lighting area A1 around the user's feet outside the vehicle 2 through an open door 3 to illuminate how in Fig. 5 shown (step S1 More precisely, the microcomputer controls 16 the drive unit 12 to the lighting unit 11 to move to a position where the lighting unit 11 the lighting area A1 can illuminate while the lighting unit 11 is switched off. The microcomputer then switches on. 16 the lighting unit 11 one to start the lighting, and illuminates the lighting area A1 , which is located around the feet of a user.

[0027] After the lighting area A1The microcomputer controls the illumination for a predetermined time. 16 the drive unit 12 to select a lighting position for the lighting unit 11 from the lighting area A1 on a lighting area A2 in a driver's seat SH to move, and illuminates the driver's seat SH (Step S2 ). Then the microcomputer determines 16 , whether a user is detected sitting down or not, depending on the on / off state of the seat switch 14 (Step S3 ). When a user sits down ( J in step S3 ), the microcomputer controls 16 the drive unit 12 to select a lighting position for the lighting unit 11 from the lighting area A2 on a lighting area A3 on a starter switch SW to move, and illuminates the starter switch SW (Step S4 The starter switch SW is a switch located on an instrument panel 4 a vehicle, and an engine of the vehicle 2 is started in response to the fact that the starter switch SW is activated by a user.

[0028] Then the microcomputer determines 16 , whether a switching process of the starter switch SW is determined by a user or not, depending on the on / off state of the starter switch. 15 (Step S5 ). When the starter switch is switched on SW is determined ( J in step S5 ), the microcomputer controls 16 the drive unit 12 to select a lighting position for the lighting unit 11 from the lighting area A3 on a lighting area A4on a steering wheel 5 to move, and illuminates the steering wheel 5 (Step S6 Then, for example, after the steering wheel 5 After being illuminated for a predetermined time, the microcomputer switches 16 the lighting unit 11 from (step S7 ) and completes a beginner's tutorial sequence. In the beginner's tutorial sequence described above, the microcomputer allows 16 the lighting unit 11 during movement from the lighting area A1 to the lighting area A5 turned on.

[0029] If the microcomputer 16 In the above-described entry-level instruction sequence, the microcomputer determines when a user is entering the system and controls the process. 16 the drive unit 12 to select a lighting position for the lighting unit 11to move along a predetermined track that sequentially passes over objects including the feet, the driver's seat SH , of the starter switch SW and the steering wheel 5 This means that light emitted by the lighting unit... 11 The unit is provided and moves along the aforementioned track, while the lighting unit... 11 is switched on. Consequently, the respective objects are illuminated sequentially, eliminating the need to switch a light source on and off in turn, thus offering driver-friendliness and vehicle familiarity at the time of entry. Furthermore, fewer light sources are required than objects, reducing costs.

[0030] Furthermore, the microcomputer controls 16 the drive unit 12in such a way that the next object is illuminated when a user movement occurs, such as a user sitting down, or when the starter switch is turned on. SW is determined. Consequently, the lighting position can be moved according to a user's movement, further improving driver-friendliness and vehicle affinity.

[0031] If a user then opens the door 3 When opening the door to exit the vehicle, the interior light switch will be activated. 13 switched on. The microcomputer 16 Detects when a user exits the vehicle when the interior light switch is turned off. 13 is switched on while the seat switch 14 is switched on and a user is in the vehicle 2 is located, and then performs an exit procedure as described in In Fig. 6 shown.

[0032] The microcomputer 16controls the drive unit 12 and the lighting unit 11 to the lighting area A2 in the driver's seat SH to illuminate how in Fig. 5 shown (step S10 More precisely, the microcomputer controls 16 the drive unit 12 to the lighting unit 11 to move to a position where the lighting unit 11 the lighting area A2 can illuminate, while the lighting insert 11 is switched off. The microcomputer then switches on. 16 the lighting unit 11 one and illuminates the lighting area A2 in the driver's seat SH .

[0033] Then the microcomputer controls 16 the drive unit 12 to select a lighting position for the lighting unit 11 from the lighting area A2to the lighting area A1 around the user's feet outside the vehicle 2 to move, and illuminates the user's feet (step S11 ). If the microcomputer 16 determined that the interior light switch 13 is switched off and the door 3 is closed ( J in step S12 ), the microcomputer switches 16 the lighting unit 11 exits and ends the exit instructions sequence.

[0034] If the microcomputer 16 In the exit procedure described above, the microcomputer detects when a user is about to exit the building and controls the exit. 16 the drive unit 12 to select a lighting position for the lighting unit 11 to move along a predetermined track that passes sequentially over objects including the driver's seat SH and the feet. Consequently, as with the entry guidance procedure described above, driver friendliness and vehicle affinity can be generated at the time of exiting, and costs can also be reduced.

[0035] It should be noted that the first embodiment described above dealt with an example relating to a lighting position track that is guided according to boarding or alighting, but the present invention is not limited to this. For example, a track can be set to change according to a user's movement. More precisely, the microcomputer illuminates 16 the starter switch SW , after the feet and the driver's seat SH sequentially illuminated in the same way as in the first embodiment described above, when the microcomputer 16Determines that a user has fastened a seatbelt. Alternatively, the microcomputer 16 designed to illuminate a seatbelt when a user initiates the starter switch operation. SW performs after the feet and driver's seat SH were illuminated sequentially.

[0036] That is, after a user has sat down and fastened a seatbelt, before initiating a starting process of the ignition switch. SW Performing this, a lighting position of the lighting unit is selected. 11 guided along a track that sequentially goes over the feet, the driver's seat SH and the starter switch SW This occurs. However, if a user, after sitting down, initiates a start-up process of the ignition switch... SW before he has fastened a seatbelt, a lighting position of the lighting unit is selected. 11guided along a track that sequentially goes over the feet, the driver's seat SH and a seatbelt runs along it.

[0037] Furthermore, the drive unit 12 According to the first embodiment described above, the control is such that the next object is illuminated when a user movement occurs, such as a user sitting down or the activation of the starter switch. SW is determined, but the present invention is not limited to this. For example, the drive unit 12 controlled in such a way that the feet, the driver's seat SH , the starter switch SW and the steering wheel 5 are illuminated sequentially at regular intervals without detecting any user movement.

[0038] Furthermore, the lighting unit includes a light source. 11Although only one LED is used, and this LED is driven according to the first embodiment described above, the present invention is not limited to this. For example, if a light source of the lighting unit 11 Including a light source section such as an LED and a reflection section (for example, a MEMS mirror) that can be controlled to reflect light provided by the light source section, a lighting position of the lighting unit can be achieved. 11 by targeting the reflection section. (Second example)

[0039] A second embodiment of the present invention is described below with reference to Fig. 7 and Fig. 8 described. Fig. Figure 7 is a block diagram of a vehicle lighting device 1according to the present invention in the second embodiment. It should be noted that In Fig. 7 parts, which are already described in the first embodiment above with reference to Fig. 1. These items are described using the same reference symbols, and a detailed description of them is omitted.

[0040] The vehicle lighting device 1 includes a lighting unit 11 , which serves as a light source, a drive unit 12 , a noise detection unit 17 , which serves as a first investigative unit, a microcomputer 16 and a camera 18 The noise detection unit 17 It includes a familiar microphone and captures speech from a user. The camera 18 It is positioned in a vehicle and attached in such a way that it captures an image of the interior of a vehicle.

[0041] While one track of a lighting position of the lighting unit 11 While the first embodiment described above traces a path over a multitude of objects, the second embodiment deals with an example in which a path traces over only one object. According to the second embodiment, a path is defined to sequentially trace over controls provided in a rear seat, which is a single object, in a sequence corresponding to the order in which the controls are operated, for example, when the rear seat is folded down. The microcomputer 16 analyzes language information provided by a user, and the microcomputer 16 The lighting of a rear seat starts when it is detected that a user is asking a question concerning instructions for folding down a rear seat.

[0042] The processes of the vehicle lighting device 1 According to the second embodiment, which was roughly described above, the following are described with reference to Fig. 8. A rear seat 6 includes a seat unit 61 , a backrest 62 and a cushion 63 First, the microcomputer controls 16 the lighting unit 11 and the drive unit 12 to create a lighting area A5 on the cushion 63 to illuminate. As a result, a user understands that he must first examine the cushion. 63 remove.

[0043] After the lighting area A5 The microcomputer controls the illumination for a predetermined period of time. 16 the drive unit 12 to the lighting unit 11 to move to a position where the lighting unit 11 a lighting areaA6 on control levers 64 can illuminate the area on the right and left sides of the backrest 62 are provided. This makes it clear to the user that the next step is to use the operating levers. 64 It should operate to adjust the backrest. 62 to tip over.

[0044] After the lighting area A6 The microcomputer controls the illumination for a predetermined period of time. 16 the drive unit 12 to the lighting unit 11 to move to a position where the lighting unit 11 a lighting area A7 on one hind leg 65 can illuminate the area under the seat unit 61 is intended. As a result, a user understands that he should next move the rear leg. 65 lift and the seat unit 61 around an axis Z3 should rotate so that the seat unit 61 stands upright.

[0045] After the lighting area A7 The microcomputer controls the illumination for a predetermined period of time. 16 the drive unit 12 to the lighting unit 11 to move to a position where the lighting unit 11 a lighting area A8 on the hind leg 65 can illuminate while the seat unit 61 Standing upright. This helps the user understand that they should move their back leg next. 65 It should fold over.

[0046] Furthermore, the microcomputer determines 16 a lighting position of the lighting unit 11 based on an image taken by the camera 18 is recorded and controls the drive unit 12 feedback in such a way that the lighting unit 11 correctly sequentially via the operating elements (the padding) 63 , the operating levers 64and the hind leg 65 ) on the back seat 6 proceeds based on a result of the investigation. Furthermore, the microcomputer recognizes 16 a human face based on an image taken by the camera 18 is recorded and controls the drive unit 12 so that a lighting position does not pass over a human face (especially the eyes).

[0047] According to the second embodiment described above, an object is the back seat. 6 and a track is set up so that it can be sequentially accessed via controls (the padding). 63 , the operating levers 64 and the hind leg 65 ) on the back seat 6 This process is as follows. Therefore, the user can receive instructions on how to fold down the rear seat. 6 be given.

[0048] It should be noted that there was indeed a question regarding instructions for folding down the rear seat. 6with the noise detection unit 17 The detection is captured in the second embodiment described above, but the present invention is not limited to this. The detection can also be carried out by actuating an actuating element such as a switch.

[0049] In addition, the lighting unit illuminates 11 in the second embodiment described above, the lighting areas A5 until A8 The present invention is not limited to uniform illumination. For example, a projector can be used to display an image as the illumination unit. 11 can project an arrow indicating a direction of operation onto the back seat 6 projected, as in Fig. 8 is shown. Alternatively, a pointer can be placed on the back seat. 6 projected and moved in a direction of action.

[0050] Furthermore, the microcomputer controls 16 in the second embodiment described above, the drive unit 12 Although it does have feedback, the present invention is not limited to this. The drive unit 12 It can also be steered forward in the same way as in the first embodiment.

[0051] Furthermore, the lighting unit does offer 11 Instructions for folding down the rear seat 6 in the second embodiment described above, but the present invention is not limited thereto. The lighting unit 6It can also provide instructions for operating a lifting device for people with physical disabilities. For example, the procedure for placing a wheelchair onto a vehicle using a lifting device is as follows: First, the lifting device is lowered by operating a remote control, and a wheelchair is pushed onto the device. Then, the wheelchair is secured using a restraint device or safety belt provided on the lifting device, and the device is raised by operating the remote control, thus placing the wheelchair onto the vehicle. Then the lighting unit can be 11 It should be designed to sequentially illuminate the remote control, the holding device, the safety belt, and the like, in order to provide guidance on how to operate the lifting device. (Third embodiment)

[0052] A third embodiment of the present invention is described below with reference to Fig. 9 described. A configuration of a vehicle lighting device 1 According to the third embodiment, it is similar to that of the vehicle lighting device. 1 according to the second embodiment, which is in Fig. Figure 7 is shown, so a detailed description of it is omitted.

[0053] The operating procedures of the aforementioned vehicle lighting device 1 The third embodiment is described. If a microcomputer 16 Determined that a user is asking a question about a direction or location by analyzing speech information provided by the user, the microcomputer begins 16 for example, with the lighting of an instrument panel 4 .

[0054] For example, if a user asks a question about a location or direction, such as "Where is the air conditioning switch?" or "Which way is the ambulance?", this speech information is processed by a sound detection unit. 17 in the microcomputer 16 entered. The microcomputer then calculates. 16 an answer to a user's question. Then the microcomputer controls 16 a lighting unit 11 and a drive unit 12 to define a predefined lighting area A9 (predetermined position) on the instrument panel 4 to illuminate the lighting area A9 is an area within the field of vision of a user sitting in a driver's seat SH sits. It should be noted that the lighting area A9This can either be predetermined or determined by identifying an area within the current user's field of vision using an image of the user's face captured by a camera or similar device. In the latter case, the identified area within the current user's field of vision is the illumination area. A9 .

[0055] Then the microcomputer controls 16 the drive unit 12 to select a lighting position for the lighting unit 11 from the lighting area A9 to move along a track that runs in a direction corresponding to an answer to the question posed above. For example, if the question is "Where is an air conditioner switch?" and a switch SW2 an air conditioner diagonally above left with respect to the lighting area A9 The microcomputer moves the location. 16a lighting position of the lighting unit 11 from the lighting area A9 diagonally upwards to the left. If an object to be illuminated is located in an area obstructed by the lighting unit. 11 can be illuminated, such as the switch SW2 of an air conditioner, the microcomputer shifts 16 a lighting position of the lighting unit 11 on a lighting area A10 on the switch SW2 .

[0056] If, on the other hand, a question is "In which direction is an ambulance?" and an ambulance is found on the right side of a vehicle as a result of analyzing an image taken by a camera that is not shown, the microcomputer shifts 16 a lighting position of the lighting unit 11 from the lighting area A9 To the right.

[0057] According to the third embodiment described above, an answer to a user's question regarding a location or direction can be given using light, so that a user can intuitively understand the answer while driving without being disturbed. (Fourth example)

[0058] A fourth embodiment of the present invention is described below with reference to Fig. 10 and Fig. 11 described. Fig. Figure 10 is a block diagram of a vehicle lighting device 1 according to the present invention in the fourth embodiment. It should be noted that in Fig. 10 parts, which are already described in the first embodiment above with reference to Fig. 1. These items are described using the same reference symbols, and a detailed description of them is omitted.

[0059] A microcomputer 16In the fourth embodiment, a steering wheel is illuminated. 5 , for instructions regarding the operation of the steering wheel 5 to give. The vehicle lighting device 1 includes a lighting unit 11 , a drive unit 12 and a camera 18 as well as a motor switch 15 , which serve as the first investigative units, and a steering angle sensor 19 The camera 18 For example, it is positioned in such a way that it captures an image of the area in front of a vehicle. The steering angle sensor 19 can determine the steering angle of a vehicle.

[0060] The microcomputer 16 analyzes an image from the camera 18 during the journey, the system determines whether there is a curve ahead of the vehicle. If a curve is detected, the microcomputer calls... 16 a steering angle and a steering direction of the steering wheel5 off to drive around the determined curve. The microcomputer then illuminates 16 a lighting area A11 corresponding to the top part of the steering wheel 5 .

[0061] Then the microcomputer shifts 16 a lighting position of the lighting unit 11 in the direction of a lighting area A12 , which is determined according to the requested steering angle and steering direction of the steering wheel 5 is determined. A trace from the lighting area A11 to the lighting area A12 takes the form of a partial circle along the steering wheel 5 on. That is, the microcomputer 16 moves a lighting position of the lighting unit 11along a track that follows the steering angle and direction, so that it follows the determined curve. As a result, a user can intuitively grasp the degree to which they can turn the steering wheel. 5 It should rotate while he is not disturbed while driving.

[0062] Furthermore, the microcomputer determines 16 , when the motor switch 15 The activation process indicates that a vehicle is being switched from a stop state to a start state. Consequently, the microcomputer reads... 16 a result of the steering angle sensor 16 and determines whether the steering wheel is in a neutral position or not. If the steering wheel 5 The microcomputer determines whether the microcomputer is in a neutral position. 16 a steering-without-driving state and moves a lighting position of the lighting unit 11along a track that runs according to a steering angle and steering direction around the steering wheel 5 to return to a neutral position.

[0063] More precisely, the microcomputer records 16 the upper section of the steering wheel 15 in a steering-without-driving state based on a steering angle of the steering wheel 5 and moves a lighting position from a lighting area A13 on the retrieved top section to a lighting area A14 on the uppermost section of the steering wheel 5 in a neutral state. As a result, a user can intuitively grasp the degree to which they can turn the steering wheel. 5 should turn to turn the steering wheel 5 to return to a neutral position.

[0064] It should be noted that although a single lighting unit 11in the embodiment described above, but the present invention is not limited to this. A multitude of lighting units can also be used. 11 They can be used so that a track is assembled by forwarding.

[0065] If the microcomputer 16 According to another possible embodiment, if a vehicle is determined to start while the handbrake is engaged, the microcomputer illuminates 16 a handbrake located between the driver's seat and a passenger seat or near the floor of the driver's seat, and shifts a lighting position of the lighting unit 11 repeatedly back and forth on the handbrake. (Fifth example)

[0066] A fifth embodiment of the present invention is described below. This is a configuration of a vehicle lighting device. 1According to the fifth embodiment, it is similar to that of the vehicle lighting device. 1 according to the second embodiment, which is in Fig. Figure 7 is shown, so a detailed description of it is omitted.

[0067] The operating procedures of the aforementioned vehicle lighting device 1 as described in the fifth embodiment. If the microcomputer 16 Determines a user's sleep state or inattentive state (concentrating on things other than driving) based on an image taken by a camera 18 The microcomputer controls the recording process. 16 a drive unit 12 to include a lighting unit 11 to move it so that a lighting position is on the user's face. Then the lighting unit 11It is switched on to illuminate the user's face. The microcomputer then determines... 16 Positions of a user's eyes based on an image taken by the camera 18 It captures light and prevents the user's eyes from being directly illuminated. As a result, a user can be awakened from a sleep or inattentive state.

[0068] If the microcomputer 16 Subsequently, a user's awake state (awakened from a sleep state or an inattentive state) is determined based on an image taken by the camera. 18 The microcomputer controls the recording process. 16 the drive unit 12 to the lighting unit 11to move along a predefined path so that the lighting position is outside the user's face. By moving a lighting position to the apex of a user's line of sight, the user can visually adjust the spotlight. L from the lighting unit 11 to recognize and understand that he was in a state of sleep or inattentiveness. (Sixth embodiment example)

[0069] A sixth embodiment of the present invention is described below. This is a configuration of a vehicle lighting device. 1 According to the sixth embodiment, it is similar to that of the vehicle lighting device. 1 according to the second embodiment, which is in Fig. Figure 7 is shown, so a detailed description of it is omitted.

[0070] The operating procedures of the aforementioned vehicle lighting device 1 The sixth embodiment is described. According to the sixth embodiment, a microcomputer provides information. 16 using a lighting unit 11 about switching from automatic to manual driving, or vice versa. More precisely, the microcomputer detects 16 , when the microcomputer 16 Determines that the automatic drive should be switched to manual drive, an area within a user's field of vision (a tip of the gaze direction) based on an image of a face taken by a camera 18 is recorded, serving as a third investigative unit. The microcomputer then controls it. 16 a drive unit 12 to the lighting unit 11to drive in such a way that a lighting position is illuminated which is located in the detected area within a user's field of vision, and then switches off the lighting unit. 11 for example, in orange.

[0071] If the microcomputer 16 based on a picture of a user taken by the camera 18 Once recorded, and then determined that the automatic drive has been correctly switched to manual drive, the microcomputer shifts 16 a lighting position of the lighting insert 11 to an area outside the user's field of vision and switches off the lighting unit 11Then, during automatic driving, when the driver's direction is unknown, an area within the user's field of vision is illuminated at the point when the automatic driving switches to manual driving, thus informing the driver that they should soon take the steering wheel. In this way, driving can be assisted.

[0072] Furthermore, the microcomputer records 16 , when the microcomputer 16 Determines that manual driving should be switched to automatic driving, an area within a user's field of vision (a tip of the gaze direction) based on an image of a face taken by the camera 18 is recorded. The microcomputer then controls 16 the drive unit 12 to the lighting unit 11to drive in such a way that a lighting position is illuminated which is located within the detected area and within a user's field of vision, and then switches off the lighting unit. 11 for example, in blue. However, the microcomputer controls it. 16 the drive unit 12 so that a lighting position is located at the edge of a user's field of vision and not in an area directly in front of the user's eyes, although the lighting position is in any case within the user's field of vision. If the lighting unit 11 If the light were suddenly switched on in front of the eyes during manual driving, the driving would be disrupted, so that only the edge of the user's field of vision and not an area in front of the eyes would be illuminated.

[0073] If the microcomputer 16 based on a picture of a user taken by the camera 18Once recorded, and after determining that the manual drive has been correctly switched to the automatic drive, the microcomputer shifts 16 a lighting position of the lighting unit 11 to an area outside the user's field of vision and switches off the lighting unit 11 away.

[0074] It should be noted that the lighting unit 11 at a time when switching from automatic to manual driving or switching from manual to automatic driving according to the sixth embodiment described above, but the present invention is not limited thereto. The microcomputer 16 can represent a driving condition using colors by controlling the lighting unit 11 during automatic driving, it switches on in blue, whereas it switches on the lighting unit 11For example, it switches on in yellow during manual driving. In this case, the microcomputer detects 16 an area within a user's field of vision (a tip of the gaze direction) based on an image of a face captured by the camera 18 is recorded at any time and controls the drive unit 12 so that a lighting position is always within a user's field of vision, even if the user changes their direction of gaze. The aforementioned method of indicating a driving status is not limited to colors. This is achieved through a design in which letters are located within a lighting area of ​​the lighting unit. 11 Driving conditions can be projected using letters. Alternatively, a driving condition can be represented using the lighting state of the lighting unit. 11represented, for example, by a flashing of the lighting unit 11 this is caused during automatic driving and the lighting unit 11 during manual driving, the lights are set to stay on continuously.

[0075] It should be noted that the present invention is not limited to the embodiments described above. That is to say, various modifications can be made to the implementation of the present invention without deviating from its essence. Reference symbol list 2 vehicles 5 Steering wheel (object) 6 Rear seat (object) 11 Lighting unit (light source) 12 Drive unit 13 Interior lighting switches (first investigation unit) 14 seat switches (second investigation unit) 15 motor switches (first investigation unit, second investigation unit) 16 microcomputers (control) 17 Noise detection unit (first investigation unit) 18 cameras (first investigation unit, third investigation unit) 19 Steering angle sensor (first detection unit) 63 Cushions (actuating element) 64 Operating lever (actuating element) 65 rear leg (actuating element) SH driver's seat (object) SW starter switch (object) QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] JP 2017147411

[0001] JP 2010

[0003] JP 285061

[0003]

Claims

[1] Vehicle lighting device comprising: a light source mounted on a vehicle; a drive unit configured to drive the light source in order to move a lighting position; a first investigation unit configured to determine a predefined state of the vehicle or a user; and a controller configured to initiate the activation of the light source and the control of the drive unit to move an illumination position of the light source along a predetermined track according to the determination by the first determination unit. [2] Vehicle lighting device according to claim 1, wherein the track is defined such that it runs sequentially over a plurality of objects. [3] Vehicle lighting device according to claim 2, further comprising: a second detection unit configured to detect a predetermined movement of the user, wherein The control unit directs the drive unit to shift the lighting position of the light source so that the next object is illuminated according to the determination by the second detection unit. [4] Vehicle lighting device according to one of claims 1 to 3, wherein the first detection unit detects the entry or exit of the user. [5] Vehicle lighting device according to claim 1, wherein the track is fixed to a single object. [6] Vehicle lighting device according to claim 5, wherein the individual object is a back seat or a lifting device, and The track is set so that it runs sequentially over a multitude of actuating elements located in the rear seat or lifting device. [7] Vehicle lighting device according to claim 5, wherein the first investigative unit identified a curve in front of the vehicle while driving, the single object is a steering wheel, and The control system guides the lighting position of the light source along a track that follows a steering angle and direction, so that it follows the determined curve. [8] Vehicle lighting device according to claim 5, wherein The first investigative unit determines that the vehicle is moved from a stop state to a start state when the steering wheel is not in a neutral position. the single object is the steering wheel, and The control system guides the lighting position of the light source along a track that follows a steering angle and direction, returning the steering wheel to the neutral position. [9] Vehicle lighting device according to any one of claims 1 to 8, wherein the first investigative unit identifies a state in which the user asks a question, and If an answer to the question includes a direction, the control moves the lighting position of the light source from the specified position along a track that runs in a direction corresponding to the answer. [10] Vehicle lighting device according to any one of claims 1 to 9, wherein the first investigative unit detects a sleep state or an inattentive state of the user, and The control unit directs the drive unit so that the illumination position of the light source is on the user's face, according to the determination by the first detection unit, and shifts the illumination position of the light source along a predetermined track so that the illumination position of the light source is outside the user's face when the user's awakening is detected. [11] Vehicle lighting device according to claim 1, further comprising: a third investigative unit configured to determine the user's appearance from an image of the user, wherein The control moves the lighting position of the light source to a position within the user's field of view, as determined by the third detection unit, and moves the lighting position of the light source from that position along the predetermined track.

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