JP2008126910A - Vehicular illumination device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular illumination device capable of controlling light distribution on a specified road while maintaining an irradiated area ahead of a vehicle. <P>SOLUTION: In the vehicular illumination device 10, a pair of lighting fixtures 11 having a fixed illumination lamp 13 and a movable illumination lamp 14 are provided in a vehicle C, and the lighting fixtures 11 are controlled by a control means 12. When the vehicle travels on a specified road, the control means 12 controls the light distribution on the specified road that the right movable illumination lamp 14R illuminates the right side of a road-way RW, and the left movable illumination lamp 14L illuminates a part SWL adjacent to the left side of the road-way RW. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a lighting device such as a headlamp used in an automobile.

2. Description of the Related Art Conventionally, there is an illuminating device that illuminates the front of an automobile (vehicle) that can change an illumination area and performs light distribution control that changes the illumination area according to a road on which the vehicle is traveling. (For example, refer to Patent Document 1). In this case, for example, a road with many pedestrians is set as a specific road, such as in the premises of a housing complex, and specific road light distribution control is performed to change the irradiation area into a wide shape on the left and right in a scene where the vehicle travels on the specific road. By doing so, it is possible to create a situation where pedestrians can be easily found, and to improve driving safety.
JP 2002-193027 A

  However, the conventional vehicular lighting device is configured to be an irradiation area suitable for specific road light distribution control by changing the shape of the irradiation area, so that it is the most important from the viewpoint of traveling safety. There is a risk that the shape of the irradiation area will change and the passenger of the vehicle will feel uncomfortable.

  The subject of this invention is providing the illuminating device for vehicles which can perform specific road light distribution control, maintaining the irradiation area | region ahead of a vehicle.

  In order to solve the above-described problem, the vehicle lighting device according to claim 1 is configured such that the illumination direction with respect to the vehicle is fixed so that the front of the vehicle can be illuminated, and the illumination direction with respect to the vehicle can be changed. An illuminating device for a vehicle in which illumination lamps having movable illumination lamps are provided in pairs with the vehicle, and lighting control and irradiation direction control of each movable illumination lamp are performed by a control means connected to both the movable illumination lamps The vehicle is provided with a traveling condition detecting means for detecting that the vehicle is traveling on a specific road, and one of the movable illumination lamps is set as a left illumination lamp capable of illuminating at least the left front of the vehicle. The other movable illumination lamp is set as a right illumination lamp capable of illuminating at least the right front of the vehicle, and the control means is configured to detect the vehicle on a specific road by the traveling state detection means. Specific road light distribution control that causes the right movable illumination light to illuminate a location adjacent to the right side of the road and the left movable illumination light to illuminate a location adjacent to the left side of the road. It is characterized by performing.

  The vehicle illumination device according to claim 2 is the vehicle illumination device according to claim 1, wherein the control means determines an irradiation direction of the two movable illumination lamps to start the specific road light distribution control. When changing, both the movable illumination lamps are turned off or dimmed.

  The vehicle lighting device according to claim 3 is the vehicle lighting device according to claim 1 or 2, wherein the control means does not form an illumination area on an opposite lane of a roadway. It is characterized by performing road light distribution control.

  The vehicle illumination device according to claim 4 is the vehicle illumination device according to any one of claims 1 to 3, wherein the traveling state detection unit is configured to specify that the vehicle is traveling. The road form of the road can be recognized, and the control means performs the specific road light distribution control according to the road form of the specific road on which the vehicle is traveling.

  The vehicle lighting device according to claim 5 is the vehicle lighting device according to any one of claims 1 to 4, wherein the control means is to start the specific road light distribution control. When changing the irradiation direction of the two movable illumination lamps, the change speed of the irradiation direction of the two movable illumination lamps is adjusted so that the two movable illumination lamps illuminate a portion adjacent to the roadway substantially simultaneously. To do.

  The vehicle lighting device according to claim 6 is the vehicle lighting device according to any one of claims 1 to 4, wherein the control means is to start the specific road light distribution control. When changing the irradiation direction of the two movable illumination lamps, the change start time of the irradiation direction of the two movable illumination lamps is adjusted so that the two movable illumination lamps illuminate a portion adjacent to the roadway substantially simultaneously. And

  The vehicular illumination device according to claim 7 is the vehicular illumination device according to any one of claims 1 to 6, wherein the traveling state detection means includes information on the traveling state of the vehicle and navigation. It is characterized by detecting that the vehicle is traveling on a specific road by appropriately combining at least one of the information from the system.

  In the vehicular illumination device according to claim 1, since the illumination part in front of the vehicle by the fixed illumination lamp does not change during the specific road light distribution control, regardless of the change of the irradiation direction of the movable illumination lamp, The shape of the irradiation area in front of the vehicle does not change, and the passenger of the vehicle does not feel uncomfortable.

  In the vehicle lighting device according to claim 2, when the specific road light distribution control is started, both movable illumination lamps are turned off or dimmed, and the irradiation direction of both movable illumination lamps illuminates a portion adjacent to the roadway. Therefore, it is possible to prevent the passengers of the oncoming vehicle from being dazzled. This is because, in the process of changing the shape of the illumination area so as to start the specific road light distribution control, the irradiation direction may be directed to the oncoming vehicle traveling on the oncoming lane, and the passengers of the oncoming vehicle may be dazzled. Because there is.

  In addition, when the irradiation direction of the movable illumination lamp is changed, the illumination spot by the movable illumination lamp is not formed, or the illumination spot is darker than the illumination spot by the fixed illumination lamp, so that the passenger of the own vehicle Since it is possible to prevent the unintentionally following the transition of the illumination part accompanying the change of the illumination area with eyes, it is possible to prevent the safety from being significantly impaired by the line-of-sight guidance. This is because the illuminated location changes as the illumination area changes, and the occupant of the host vehicle unconsciously follows the illuminated location, and this gaze guidance significantly reduces safety. Because there is a risk of being.

  In the vehicle lighting device according to claim 3, when the specific road light distribution control is performed, an illumination area is not formed on the oncoming lane, thereby preventing the oncoming vehicle occupant from being dazzled. can do.

  In the vehicle lighting device according to the fourth aspect, the specific road light distribution control is performed in accordance with the road form on which the vehicle is traveling. For example, even if the road is one lane on one side, it is a two-lane road on one side. However, it is possible to illuminate the part adjacent to the roadway correspondingly to each.

  In the vehicular illumination device according to claim 5 and 6, when the specific road light distribution control is started, the portions adjacent to the left and right sides of the roadway are illuminated substantially simultaneously, so that the passengers of the own vehicle feel uncomfortable. It is possible to shift to driving under specific road light distribution control without causing it.

  In the vehicle lighting device according to claim 7, since it is possible to easily and appropriately detect that the vehicle is traveling on the specific road, the specific road light distribution is ensured when the vehicle is traveling on the specific road. Control can be performed.

  DESCRIPTION OF EMBODIMENTS Embodiments of a headlamp that is an example of an illumination lamp for an automobile according to the present invention will be described below with reference to the drawings.

  FIG. 1 is a perspective view schematically showing a vehicle C in which the vehicular lighting device 10 according to the present invention is employed, and FIG. 2 is a schematic view taken along the line II shown in FIG. FIG. 3 is a cross-sectional view, and FIG. 3 is a block diagram schematically showing a configuration for performing specific road light distribution control of the vehicular lighting device 10.

  The specific road light distribution control refers to illuminating a sidewalk adjacent to the roadway as necessary, as will be described later. Thereby, for example, it is possible to appropriately and quickly grasp the trend of pedestrians on the sidewalk.

  The vehicle lighting device 10 includes a headlamp 11 as an illumination lamp, and an electronic control unit 12 (hereinafter also simply referred to as an ECU 12 (Electronic Control Unit)) for controlling the operation of the headlamp 11 (see FIG. 2). Is provided.

  As shown in FIG. 2, in the headlamp 11, the irradiation direction with respect to the vehicle C can be changed to change the illumination direction to the fixed illumination lamp 13 in which the irradiation direction with respect to the vehicle C is fixed so that the front of the vehicle C can be illuminated. An additional lamp swivel type illumination lamp (additional lamp swivel type illumination lamp) configured by adding the movable illumination lamp 14 is adopted. The headlamps 11 are provided on the left and right sides (11L, 11R) (see FIG. 1) so as to form a pair at the front end of the vehicle C. Both headlamps 11 (11L, 11R) are symmetrically configured to be substantially equal to each other, and each is electrically connected to the ECU 12 (see FIG. 3). In the following description of the configuration of the headlamp 11, since the configurations are substantially equal to each other, the headlamp 11L provided on the left side will be described, and the other headlamp 11R will be omitted.

  In the present embodiment, the headlamp 11L includes a housing 15 that is open at one end and a lens 16 that is attached to the open end, and is movable in a lamp chamber 17 formed by the housing 15 and the lens 16 and the fixed illumination lamp 13. The illumination lamp 14 is accommodated and configured.

  The fixed illumination lamp 13 includes a fixing bulb 18 and a fixing reflector 19. Although not shown, the fixed illumination lamp 13 is fixed to the housing 15 and disposed in the upper space of the lamp chamber 17. The fixing valve 18 is electrically connected to a control unit (not shown), and lighting control is performed by the control unit. A movable illumination lamp 14 is provided below the fixed illumination lamp 13.

  The movable illumination lamp 14 has a movable bulb 20 and a movable reflector 21, and is disposed in a lower space of the lamp chamber 17. The movable valve 20 is electrically connected to the ECU 12, and lighting control is performed by the ECU 12. The movable illumination lamp 14 is rotatably supported by the swing bracket 23 via a first rotation shaft 22 extending in the vertical direction. The swing bracket 23 is swingably supported by the housing 15 via a second rotating shaft 24 extending in the vehicle width direction.

  The first rotation shaft 22 is rotatably provided on the swing bracket 23 and is held by a swing device 25 whose lower end is fixed to the swing bracket 23. The rotation device 25 is configured to be able to rotate the first rotation shaft 22 using a stepping motor, and is electrically connected to the ECU 12, and the first rotation shaft 22 is controlled by the ECU 12 under the control of the ECU 12. It can be rotated so as to be stationary at an arbitrary angle around the axis. Therefore, the ECU 12 directs the movable illumination lamp 14 in an arbitrary direction around the first rotation axis 22 in the swing bracket 23, that is, an irradiation direction control that sets an arbitrary irradiation direction around the first rotation axis 22. It can be performed.

  The second rotation shaft 24 is swingably provided on the housing 15, and the swing bracket 23 is swingable about the axis of the second rotation shaft 24 in the housing 15. In order to swing the swing bracket 23, a rod driving device 26 is provided.

  The rod driving device 26 is disposed in the vicinity of the lower end of the housing 15, holds the rod 27 so as to be able to advance and retract in the front-rear direction with respect to the vehicle C, and is electrically connected to a control unit (not shown). The rod driving device 26 is configured to be able to advance and retract the rod 27 using a stepping motor, and the amount of advancement and retraction of the rod 27 can be made arbitrary under the control of a control unit (not shown). A holding portion 28 is provided at the tip of the rod 27. The rod 27 is connected to the swing bracket 23 by the holding portion 28 rotatably holding the ball bearing portion 30 of the rod connecting column 29 protruding from the lower end of the rear portion of the swing bracket 23.

  The rod driving device 26 swings the swinging bracket 23 at an arbitrary angle around the axis of the second rotating shaft 24 with an arbitrary amount of advancement and retraction of the rod 27 under the control of a control unit (not shown). Can be moved. For this reason, the control unit (not shown) directs the swing bracket 23 in any direction around the second rotation shaft 24 in the housing 15, that is, irradiation with any irradiation direction around the second rotation shaft 24. Direction control can be performed.

  As shown in FIG. 3, the ECU 12 is electrically connected to an illumination lamp lighting switch 31 provided in the vehicle C. When a lighting signal is input from the illumination lamp lighting switch 31, both the headlamps 11 (11L , 11R.). In this embodiment, the illumination lamp lighting switch 31 is not shown, but is a normal lighting position where only the fixed illumination lamp 13 is lit, and an adaptive advanced illumination which will be described later by lighting the movable illumination lamp 14 in addition to the fixed illumination lamp 13. An AFS lighting position for performing control is set.

  The ECU 12 is electrically connected to a movable valve position detection means 33. The movable bulb position detecting means 33 detects the irradiation direction of the movable illumination lamp 14. The movable bulb position detecting means 33 can be constituted by, for example, a sensor provided inside the headlamp 11 or a storage device provided inside and outside the ECU 12. The information on the irradiation direction of the movable illumination lamp 14 from the movable bulb position detection means 33 indicates that the movable illumination lamp 14 has an appropriate irradiation direction when the ECU 12 performs specific road light distribution control and adaptive advanced illumination control. It is possible.

  Furthermore, the ECU 12 is electrically connected with a traveling state detection means 32. In the present embodiment, the traveling state detection means 32 is configured to be able to detect that the vehicle is traveling on a specific road using a navigation system mounted on the vehicle C. The ECU 12 is capable of recognizing a location to be determined as a specific road in the map data held by the navigation system, and acquires information on the current position of the vehicle C in the map data from the navigation system. It is possible to detect that the vehicle is traveling on a specific road.

  Here, the specific road means a road on which specific road light distribution control is desired to be performed in order to appropriately and quickly grasp the pedestrian trend from the viewpoint of traveling safety. As such a road, for example, a sidewalk is provided adjacent to a roadway, such as a road provided in a city area where buildings such as houses or stores are gathered, and people frequently pass through the sidewalk. Roads. Here, the roadway means the place where the automobile on the road should run, and the sidewalk includes the pedestrian road for pedestrians on the road, the bicycle road for bicycles, and the bicycle pedestrian road that combines both. Say. Furthermore, the roadway includes a road composed of at least one or more traveling lanes and a roadway composed of at least one or more traveling lanes and at least one or more opposite lanes. Here, the traveling lane includes a lane set in the same traveling direction as the traveling lane, such as an uphill lane and an overtaking lane. It should be noted that on roads other than highways, pedestrians and the like may enter the roadway, so all roads other than highways may be set as specific roads. In this case, the specific road can be determined on the map data of the navigation system. Further, when all roads other than the expressway are specified roads, the vehicle C can be used when, for example, the traveling speed of the vehicle C or the average value of the traveling speed is equal to or less than a threshold value without using the navigation system. Can be determined to be traveling on a specific road.

  Furthermore, ECU12 is set as the structure which acquires the information of the road form of the specific road currently drive | working from a navigation system. The road type information of the specific road refers to the number of traveling lanes and oncoming lanes provided on the roadway, the width dimension, and the like.

  In the vehicular lighting device 10, although not shown, the ECU 12 is configured to receive the speed of the vehicle C, the traveling state of the vehicle C, and the like in addition to information on the steering angle of the steering device. In the vehicle lighting device 10, the ECU 12 in the operating state with the above-described AFS lighting position is operated by the steering angle of the steering device, the speed of the vehicle C, the traveling state of the vehicle C, the current position of the vehicle C, map information corresponding thereto, and the like. Based on this information, the illumination direction of the movable illumination lamp 14 is appropriately changed to change the illumination direction, and the road in the traveling direction is illuminated according to the shape of the road on which the vehicle C is traveling (hereinafter referred to as adaptive advanced illumination control). Also function as an adaptive advanced front lighting system (hereinafter also referred to simply as AFS (Adaptive Front-lighting System)).

  The vehicle lighting device 10 according to the present invention is configured to automatically switch from adaptive advanced lighting control to specific road light distribution control when the vehicle C enters a specific road. This switching operation process will be described with reference to the flowchart shown in FIG.

  If electric power is supplied to ECU12, it will be in the state which the vehicle illuminating device 10 performs while switching adaptively advanced illumination control and specific road light distribution control suitably, and will progress to step S2 (step S1).

  The traveling state detection means 32 detects whether or not the vehicle C is traveling on a specific road (step S2). When the vehicle C is traveling on the specific road, the process proceeds to step S3, and when the vehicle C is not traveling on the specific road, the process proceeds to step S4.

  When the vehicle C is traveling on the specific road, that is, when the signal indicating that the vehicle C is traveling on the specific road is received from the traveling state detection means 32, the ECU 12 detects both the movable illumination lamps 14L and 14R. Starts specific road light distribution control (see FIG. 5) for changing the irradiation direction of both movable illumination lamps 14L and 14R so as to illuminate a portion adjacent to the roadway RW (step S3). At this time, both the fixed illumination lamps 13L and 13R of the both headlamps 11L and 11R are continuously lit by a control unit (not shown). In step S3, if the specific road light distribution control has already been performed, the specific road light distribution control is continued. Then, it progresses to step S5.

  When the vehicle C is not traveling on the specific road, that is, when the signal indicating that the vehicle C is traveling on the specific road is not received from the traveling state detection means 32, the ECU 12 continues the adaptive advanced lighting control. (Step S4). In step S4, if adaptive advanced lighting control has already been performed, adaptive advanced lighting control is continued. Then, it progresses to step S5.

  When the illumination lamp lighting switch 31 is set to the AFS lighting position, it is necessary to continue either adaptive advanced lighting control or specific road light distribution control. Therefore, the lighting lamp lighting switch 31 is set to a position other than the AFS lighting position. Until the power supply to the ECU 12 is stopped, the process returns to step S2 to continue either the adaptive advanced lighting control or the specific road light distribution control, and the lighting lamp lighting switch 31 is in the AFS lighting position. When the supply of power to the ECU 12 is stopped, the flowchart of FIG. 4 ends (step S5).

  In this specific road light distribution control, an illumination area formed by both headlamps 11L and 11R is shown in FIG. In FIG. 5, the illumination location of the headlight 11L by the fixed illumination lamp 13L is L13, the illumination location of the headlight 11L by the movable illumination lamp 14L is L114, the illumination location of the headlight 11R by the fixed illumination lamp 13R is Lr13, The illumination part of the light 11R by the movable illumination lamp 14R is Lr14, and the illumination areas of the headlamps 11L and 11R are formed by the illumination parts Ll13, Ll14, Lr13, and Lr14.

  In this embodiment, since the ECU 12 has acquired from the navigation system that the specific road on which the vehicle C is traveling is one lane on one side, the movable illumination lamp 14L is located on the left side of the road RW according to the width dimension of the specific road. The illumination location Ll14 is formed on the sidewalk SWL adjacent to the movable illumination lamp L, and the movable illumination lamp 14R forms the illumination location Lr14 on the sidewalk SWR adjacent to the right side of the roadway RW. In this specific road light distribution control, the illumination location Ll14 and the illumination location Lr14 are formed closer to the vehicle C than the illumination location Ll13 and the illumination location Lr13 when viewed in the traveling direction of the vehicle C, that is, the extending direction of the road R. It is set to be.

  In the transition to the specific road light distribution control, in the vehicle lighting device 10, the irradiation direction of the both movable illumination lights 14L and 14R is changed from the irradiation direction under adaptive advanced lighting control to the irradiation direction under specific road light distribution control. Will be changed. This is because under the adaptive advanced illumination control, the illumination directions of the two movable illumination lamps 14L and 14R are controlled according to the shape of the road on which the vehicle C is traveling. For example, in the example of FIG. 5, since the road R on which the vehicle C is traveling is a straight road, both the movable illumination lamps 14L and 14R illuminate the front of the vehicle C in the same manner as the two fixed illumination lamps 13L and 13R. That is, the illumination points Ll14 and Lr14 are formed on the travel lane RL of the road R on the roadway RW. If this road R continues straight to the specific road, that is, it is set as a specific road from the middle of the straight road R, the vehicle C moves to the specific road while maintaining the straight traveling state. Thus, the vehicular lighting device 10 switches from adaptive advanced lighting control to specific road light distribution control. Then, in both the movable illumination lamps 14L and 14R, the irradiation direction in which the movable illumination lamp 14L forms the illumination spot Ll14 on the left sidewalk SWL is changed from the irradiation direction in which the illumination spot is formed on the travel lane RL ( At the same time, the movable illumination lamp 14R is changed to the irradiation direction for forming the illumination area Lr14 on the right sidewalk SWR (see the arrow Ar in FIG. 5).

  In the vehicular illumination device 10 according to the present invention, the two movable illumination lamps 14L and 14R are turned off when the irradiation direction of the both movable illumination lamps 14L and 14R is changed due to switching from the adaptive advanced illumination control to the specific road light distribution control. Or it is set to be dimmed. Examples of extinguishing or dimming of both the movable illumination lamps 14L and 14R are shown in graphs in FIGS.

  6 to 13, the horizontal axis indicates time t, and the vertical axis indicates the brightness when the two movable illumination lamps 14L and 14R are set to 0 (%) in the extinguished state and appropriately illuminated. Is shown as 100 (%). 6 to 13, it is assumed that adaptive advanced lighting control is performed when the time is 0, vehicle C enters the specific road at time t1, and specific road light distribution control is performed at time t2. Switching from adaptive advanced illumination control to specific road light distribution control is performed between time t1 and time t2, and the irradiation direction of both movable illumination lamps 14L and 14R is transitioned. . The brightness d (%) of both movable illumination lamps 14L and 14R when dimmed in FIGS. 6 to 9 is determined by the occupant of vehicle C even if the illumination locations Ll14 and Lr14 formed by them are changed. It is said to be bright enough to prevent chasing with the eyes.

  In the example shown in FIG. 6, the light is reduced to d (%) at time t1, and returned to 100 (%) at time t2.

  In the example shown in FIG. 7, gradual dimming is started at time t1, dimmed at time t3, gradually increased at time t4, and 100 (%) at time t2. It has been returned.

  In the example shown in FIG. 8, gradual dimming is started at time t1, dimmed to d (%) at time t3, and returned to 100 (%) at time t2.

  In the example shown in FIG. 9, the light is reduced to d (%) at time t1, gradually increasing light is started at time t4, and returned to 100 (%) at time t2.

  In the example shown in FIG. 10, the light is reduced to 0 (%) at time t1, that is, turned off, and returned to 100 (%) at time t2.

  In the example shown in FIG. 11, gradual dimming is started at time t1, extinguished at time t5, gradual dimming is started at time t6, and returned to 100 (%) at time t2.

  In the example shown in FIG. 12, gradual dimming starts at time t1, is turned off at time t5, and returned to 100 (%) at time t2.

  In the example shown in FIG. 13, the light is turned off at time t1, gradually increasing light is started at time t6, and returned to 100 (%) at time t2.

  Further, in the vehicular illumination device 10 according to the present invention, when changing the irradiation direction of the both movable illumination lamps 14L and 14R when switching from adaptive advanced illumination control to specific road light distribution control, both movable as shown in FIG. Even when the change angle amounts of the illumination directions of the illumination lamps 14L and 14R are different, both the movable illumination lamps 14L and 14R are simultaneously illuminated in the specific road light distribution control (in this embodiment, the movable illumination lamp 14L is The irradiation direction in which the illumination spot Ll14 is formed on the left sidewalk SWL, and the movable illumination lamp 14R is set in the irradiation direction in which the illumination area Lr14 is formed on the right sidewalk SWR.) At the same time, the brightness is set to an appropriate brightness (the state of brightness 100% in FIGS. 6 to 13). An example in which both the movable illumination lamps 14L and 14R are simultaneously set as the irradiation direction in the specific road light distribution control is shown in graphs in FIGS.

  14 and 15, the horizontal axis indicates time t as in FIGS. 6 to 13, and the vertical axis indicates the posture for realizing the irradiation direction in the specific road light distribution control of both movable illumination lamps 14 </ b> L and 14 </ b> R. A distance D to the reference posture is shown with reference (0). In FIGS. 14 and 15, the line indicated by reference sign s1 indicates the movable illumination lamp 14L, the line indicated by reference sign sr indicates the movable illumination lamp 14R, and at time t1 when the vehicle C entered the specific road. Assume that the movable illumination lamp 14R is at a position (attitude) at a distance D1, and the movable illumination lamp 14L is at a position (attitude) at a distance D2.

  In the example shown in FIG. 14, the ECU 12 starts changing the postures of the two movable illumination lamps 14L and 14R at the time t1 when the vehicle C enters the specific road, but the two movable illumination lamps 14L and 14R are changed at the time t2. In order to reach the respective reference postures, the posture changing speeds of both movable illumination lamps 14L and 14R are made different.

  In the example shown in FIG. 15, the ECU 12 starts changing the posture of the movable illumination lamp 14R at the time t1 when the vehicle C enters the specific road, but has not started changing the attitude of the movable illumination lamp 14L. That is, the movable illumination lamp 14L is not moved from the position of the distance D2. After that, at time t7, the change of the attitude of the movable illumination lamp 14L is started at a speed equal to the speed of the attitude change of the movable illumination lamp 14R, so that both the movable illumination lamps 14L and 14R reach the respective reference attitudes at the time t2. I am letting.

  As described above, in the vehicular lighting device 10, the change to the irradiation direction in the specific road light distribution control of the both movable illumination lamps 14L and 14R is completed simultaneously at the time t2, and both the movable illumination lamps 14L and 14L, 14R is set to an appropriate brightness at the same time. For this reason, both movable illumination lamps 14L and 14R illuminate in the specific road light distribution control, that is, the illumination direction that illuminates portions adjacent to both sides of the roadway RW (in this embodiment, the movable illumination lamp 14L is on the left sidewalk SWL). , And the movable illumination lamp 14R forms the illumination area Lr14 on the right sidewalk SWR.), The movable illumination lamps 14L and 14R have appropriate brightness. The illumination part Ll14 and the illumination part Lr14 are formed simultaneously.

  Therefore, in the vehicular lighting device 10 according to the present invention, when traveling on a specific road, it is possible to create a situation where a pedestrian can be easily found, and to improve traveling safety.

  Further, in the vehicle lighting device 10, when the two movable illumination lamps 14L and 14R are changed from the irradiation direction under adaptive advanced illumination control to the irradiation direction under the specific road light distribution control, both movable illumination lamps 14L, Since 14R is extinguished or dimmed, it is possible to prevent the passengers of the oncoming vehicle OC traveling in the oncoming lane OL from being dazzled.

  Further, in the vehicular illumination device 10, when the irradiation direction of the movable illumination lamp is changed, the illumination locations Ll14 and Lr14 by the both movable illumination lamps 14L and 14R are not formed, or the illumination location is the both fixed illumination lamps 13L. Since it is darker than the illumination points Ll13 and Lr13 by 13R, it is possible to prevent the passengers of the vehicle C from following the transition of the illumination points Ll14 and Lr14 accompanying the change of the illumination area unconsciously. , Can prevent you from feeling uncomfortable.

  In the vehicle lighting device 10, since the both fixed illumination lamps 13 </ b> L and 13 </ b> R are turned on during the specific road light distribution control, the both fixed illumination lamps 13 </ b> L and 13 </ b> L are changed regardless of the change in the irradiation direction of the both movable illumination lamps 14 </ b> L and 14 </ b> R. Since the lighting locations Ll13 and Lr13 in front of the vehicle C by 13R do not change, the shape of the irradiation area in front of the vehicle C does not change, and the passenger of the vehicle C does not feel uncomfortable.

  In the vehicular lighting device 10, when the specific road light distribution control is performed, the illumination area is not formed on the oncoming lane OL, so that it is possible to prevent the passengers of the oncoming vehicle OC from being dazzled.

  The vehicular lighting device 10 can acquire information on the road form of a specific road that is running from the navigation system as the running state detection means 32, and performs specific road light distribution control according to the information on the road form. Therefore, it is possible to perform specific road light distribution control appropriately corresponding to not only specific roads of one lane on one side as in the above-described embodiment but also specific roads of various road forms. For example, although illustration is omitted, when the vehicle C is traveling in the traveling lane on the left side of the road with two lanes on one side, the location where the movable illumination lamp 14R forms the illumination area is the lane on the right side and two opposing lanes. It can be placed on the right sidewalk of the roadway so as to straddle the lane, and when traveling on a roadway with only one lane, the place where the movable illumination lamp 14R forms the illumination area It can be on the sidewalk adjacent to the right side of the lane.

  In the vehicle lighting device 10, the illumination location Ll14 and the illumination location Lr14 are formed closer to the vehicle C than the illumination location Ll13 and the illumination location Lr13 when viewed in the traveling direction of the vehicle C, that is, the extending direction of the road R. In addition, since no illumination area is formed on the oncoming lane OL, it is possible to prevent a passenger of the oncoming vehicle OC, in particular, a driver OD (see FIG. 16) from being dazzled. This is due to the following.

  As shown in FIG. 16, the driver OD of the oncoming vehicle OC is looking forward (see arrow Ae), but when the illumination area Lr14 ′ is formed on the oncoming lane OL, the driving of the oncoming vehicle OC is performed. The angle θ ′ woven in the irradiation direction from the headlight 11 becomes smaller with respect to the direction Ae of the line of sight of the person OD, and the illumination of the headlight 11 enters the field of view of the driver OD of the oncoming vehicle OC and is dazzled. On the other hand, in the vehicular illumination device 10 of the present invention, when the vehicle C and the oncoming vehicle OC relatively approach each other, the oncoming vehicle OC crosses the irradiation area in the space of the movable illumination lamp 14R. The angle θ of the irradiation direction from the movable illumination lamp 14R is large with respect to the direction Ae of the line of sight of the driver OD, and the illumination of the movable illumination lamp 14R does not easily enter the field of view of the driver OD of the oncoming vehicle OC. Dazzling can be reduced. In other words, if the driver OD of the oncoming vehicle OC forms the illumination area Lr14 ′ in the oncoming lane OL, the illumination will get into the eyes, but the sidewalk SWR as in the vehicle lighting device 10 of the present invention. This is because when the illumination region Lr14 is formed, the illumination does not enter the eyes properly.

  In addition to this, the section length across the irradiation area in the space on the oncoming lane OL is a relatively long section length I ′ when the illumination area is formed on the oncoming lane OL as shown in FIG. In the case of the vehicular illumination device 10 of the invention, the movable illumination lamp 14R is in the irradiation direction in which the illumination location Lr14 is formed at a position close to the vehicle C, so that the section length I is relatively short. For this reason, the oncoming vehicle OC can pass through the irradiation area in the space of the movable illumination lamp 14R in a shorter time than when the illumination area is formed in the oncoming lane OL.

  In the vehicular lighting device 10, when switching from adaptive advanced lighting control to specific road light distribution control, the lighting location Ll 14 and the lighting location Lr 14 are turned on at the same time (lightened), so the occupant of the vehicle C feels uncomfortable. It is possible to shift to driving under specific road light distribution control without learning. This is disproportionate (unevenness) that when one sidewalk SWL and the other sidewalk SWR are illuminated with a time difference, the visibility of only one sidewalk SWL increases and the visibility of the other sidewalk SWR is low. By being able to avoid the situation.

  Therefore, in the vehicular lighting device 10 of the present invention, the irradiation area in front of the vehicle C is maintained without dazzling the occupant of the oncoming vehicle OC, particularly the driver OD, and without causing the occupant of the vehicle C to feel uncomfortable. However, specific road light distribution control can be performed.

  Although the headlamp 11 is employed as the illumination lamp in the vehicle illumination device 10, the illumination lamp employed is a fixed illumination lamp in which the irradiation direction with respect to the vehicle is fixed so that the front of the vehicle can be illuminated. As long as it is an additional lamp swivel type illuminating lamp that is configured by adding a movable illuminating lamp whose irradiation direction to the vehicle can be changed to change the illuminating direction, it is not limited to the above-described embodiment.

  In the above-described embodiment, the vehicular lighting device 10 is configured to be able to perform adaptive advanced lighting control, but may be any device that can perform specific road light distribution control. It is not limited.

  In the above-described embodiment, the irradiation area is not formed on the oncoming lane OL at the time of specific road light distribution control. However, the irradiation direction of both movable illumination lamps 14L and 14R to start the specific road light distribution control. As long as the movable illumination lamps 14L and 14R are turned off or dimmed when the lamp is changed, the present invention is not limited to the above-described embodiment.

  In the above-described embodiment, when the irradiation direction of the both movable illumination lamps 14L and 14R is changed to start the specific road light distribution control, the both movable illumination lamps 14L and 14R simultaneously become the irradiation direction in the specific road light distribution control. Although it is configured as described above, the irradiation direction in the specific road light distribution control may not be the same and is not limited to the above-described embodiment.

  In the embodiment described above, the fixed bulb 18 is used for the fixed illumination lamp 13 and the movable bulb 20 is used for the movable illumination lamp 14, but both use HID, LED, halogen or the like as the light source. However, the present invention is not limited to the above-described embodiments.

  In the above-described embodiment, the rotating device 25 is configured using a stepping motor. However, the first rotating shaft 22 can be rotated at an arbitrary angle around the axis line under the control of the ECU 12. Any device can be used as long as it can be moved, and the present invention is not limited to the above-described embodiments.

  In the above-described embodiment, the rod drive device 26 is configured by using a stepping motor. However, the rod 27 can be arbitrarily advanced and retracted under the control of the ECU 12 in order to swing the swing bracket 23. However, the present invention is not limited to the above-described embodiments.

  In the above-described embodiment, the ECU 12 is configured to perform the lighting control of only the movable bulb 20 of the movable illumination lamp 14, but is configured to perform the lighting control of the stationary bulb 18 of the fixed illumination lamp 13 together. The present invention is not limited to the above-described embodiments.

  In the above-described embodiment, the ECU 12 is configured to change the irradiation direction of the headlamps 11R and 11L by driving and controlling both the rotating devices 25 when performing the specific road light distribution control. In addition, the rod drive device 26 may be driven and controlled, and is not limited to the above-described embodiment.

1 is a perspective view schematically showing a vehicle in which a vehicular illumination lamp according to the present invention is employed. It is typical sectional drawing obtained along the II line | wire shown in FIG. It is a block diagram which shows roughly the structure for performing the specific road light distribution control of the vehicle illuminating lamp which concerns on this invention. It is a flowchart which shows the process of the switching operation | movement of the specific road light distribution control and adaptive advanced illumination control in a vehicle lamp. It is a perspective view showing typically the state where specific road light distribution control is performed. It is a graph which shows the example in which both movable illumination lights are dimmed. It is a graph which shows the example in which both movable illumination lights are dimmed. It is a graph which shows the example in which both movable illumination lights are dimmed. It is a graph which shows the example in which both movable illumination lights are dimmed. It is a graph which shows the example from which both movable illumination lights are extinguished. It is a graph which shows the example from which both movable illumination lights are extinguished. It is a graph which shows the example from which both movable illumination lights are extinguished. It is a graph which shows the example from which both movable illumination lights are extinguished. It is a graph which shows the example in which both movable illumination lights are made into the irradiation direction in specific road light distribution control simultaneously. It is a graph which shows the example in which both movable illumination lights are made into the irradiation direction in specific road light distribution control simultaneously. It is a typical top view for demonstrating that the vehicular illumination lamp which concerns on this invention can suppress the dazzling to the passenger | crew of an oncoming vehicle in specific road light distribution control. It is a typical top view for demonstrating that the vehicular illumination lamp which concerns on this invention can suppress the dazzling to the passenger | crew of an oncoming vehicle in specific road light distribution control.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Vehicle lighting device 11 Headlamp (as illumination lamp) 12 ECU (as control means)
13 Fixed illumination light Lr13 Illumination location (as the location where the fixed illumination light illuminates) Ll13 Illumination location (as the location where the fixed illumination light illuminates) 14 Movable illumination light Lr14 (As the location where the movable illumination light illuminates) LI14 Illumination location (as a location illuminated by a movable illumination lamp) 32 Running condition detection means RW Roadway SWR Sidewalk (as a location adjacent to the right side of the roadway) Sidewalk SWL (As location adjacent to the left side of the roadway) Sidewalk OL Opposite lane C vehicle

Claims (7)

An illuminating lamp having a fixed illuminating lamp whose irradiation direction with respect to the vehicle is fixed so that the front of the vehicle can be illuminated and a movable illuminating lamp whose irradiation direction with respect to the vehicle can be changed is provided in pairs with the vehicle, A vehicular illumination device in which lighting control and irradiation direction control of each movable illumination lamp are performed by a control means connected to both the movable illumination lamps,
Traveling condition detection means for detecting that the vehicle is traveling on a specific road is provided, and one of the movable illumination lights is set as a left illumination lamp capable of illuminating at least the left front of the vehicle, The movable illumination lamp is set as a right illumination lamp that can illuminate at least the right front of the vehicle,
When the driving state detecting means detects that the vehicle is traveling on a specific road, the control means causes the right movable illumination lamp to illuminate a portion adjacent to the right side of the roadway and the left movable illumination lamp. A vehicle lighting device characterized by performing specific road light distribution control for illuminating a portion adjacent to the left side of the roadway.   2. The control unit according to claim 1, wherein when the irradiation direction of the two movable illumination lamps is changed so as to start the specific road light distribution control, the two or more movable illumination lamps are turned off or dimmed. Vehicle lighting device.   The vehicle lighting device according to claim 1, wherein the control unit performs the specific road light distribution control so as not to form an illumination area on an opposite lane of a roadway.   The traveling state detection means is capable of recognizing a road form of a specific road on which the vehicle is traveling, and the control means is configured to identify the specific road according to the road form of the specific road on which the vehicle is traveling. The vehicular lighting device according to any one of claims 1 to 3, wherein road light distribution control is performed.   The control means, when changing the irradiation direction of the two movable illumination lamps to start the specific road light distribution control, the both movable illumination lamps illuminate a portion adjacent to the roadway substantially simultaneously. The vehicular illumination device according to any one of claims 1 to 4, wherein a changing speed of an illumination lamp irradiation direction is adjusted.   The control means, when changing the irradiation direction of the two movable illumination lamps to start the specific road light distribution control, the both movable illumination lamps illuminate a portion adjacent to the roadway substantially simultaneously. The vehicular illumination device according to any one of claims 1 to 4, wherein a change start time of an illumination lamp irradiation direction is adjusted. The traveling state detecting means detects that the vehicle is traveling on a specific road by appropriately combining at least one of the traveling state information of the vehicle and the information from the navigation system. The vehicular illumination device according to claim 1.

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