WO2023175814A1 - Dispositif de commande de distribution de lumière - Google Patents

Dispositif de commande de distribution de lumière Download PDF

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Publication number
WO2023175814A1
WO2023175814A1 PCT/JP2022/012111 JP2022012111W WO2023175814A1 WO 2023175814 A1 WO2023175814 A1 WO 2023175814A1 JP 2022012111 W JP2022012111 W JP 2022012111W WO 2023175814 A1 WO2023175814 A1 WO 2023175814A1
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WO
WIPO (PCT)
Prior art keywords
vehicle
control device
light distribution
distribution control
light
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PCT/JP2022/012111
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English (en)
Japanese (ja)
Inventor
聡史 上田
悟 井上
弘毅 中本
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2024507332A priority Critical patent/JP7483176B2/ja
Priority to PCT/JP2022/012111 priority patent/WO2023175814A1/fr
Publication of WO2023175814A1 publication Critical patent/WO2023175814A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means

Definitions

  • the present disclosure relates to a light distribution control device that suppresses glare toward other vehicles.
  • the lighting control device described in Patent Document 1 is based on the vehicle type information of the preceding vehicle and the distance to the preceding vehicle in order to control the light distribution pattern of the own vehicle's illumination with respect to a predetermined direction of the preceding vehicle. control light distribution.
  • the above-mentioned lighting control device does not control the above-mentioned light distribution toward the front until it obtains the vehicle type information of the preceding vehicle, that is, whether the preceding vehicle falls into a large vehicle, medium-sized vehicle, small vehicle, etc. Do not start control. Therefore, until the above-mentioned time point, there was a risk that glare would occur between the vehicle in front and the own vehicle.
  • An object of the present disclosure is to provide a light distribution control device that can suppress the possibility of glare occurring between the vehicle ahead and the own vehicle.
  • a light distribution control device includes a recognition unit that recognizes the presence of another vehicle and recognizes the vehicle width of the other vehicle based on an image including the other vehicle, and a recognition unit that recognizes the vehicle width of the other vehicle.
  • the recognition unit recognizes the presence of another vehicle, it causes the illumination lamp to perform the first light shielding toward the recognized other vehicle, and when the recognition unit recognizes the width of the other vehicle, it performs the first light shielding.
  • a control unit that causes the illumination lamp to perform a second light shielding that is narrower in the vehicle width direction of the other vehicle and that irradiates a smaller amount of light than that of the other vehicle.
  • the light distribution control device it is possible to suppress the possibility of glare occurring between the vehicle ahead and the own vehicle.
  • FIG. 2 is a functional block diagram of a light distribution control device HSD according to the first embodiment.
  • 3 shows a positional relationship between the own vehicle JS and another vehicle TS in Embodiment 1.
  • FIG. 1 shows a hardware configuration of a light distribution control device HSD according to the first embodiment.
  • 3 is a flowchart showing the operation of the light distribution control device HSD of the first embodiment. The positional relationship between own vehicle JS and other vehicle TS in Embodiment 2 is shown.
  • FIG. 7 is a functional block diagram of a light distribution control device HSD according to a third embodiment. The positional relationship between own vehicle JS and other vehicle TS in Embodiment 3 is shown.
  • 12 is a flowchart showing the operation of the light distribution control device HSD of Embodiment 3.
  • FIG. 1 shows a hardware configuration of a light distribution control device HSD according to the first embodiment.
  • 3 is a flowchart showing the operation of the light distribution control device HSD of the first embodiment. The positional relationship between
  • FIG. 7 is a functional block diagram of a light distribution control device HSD according to a fourth embodiment.
  • the positional relationship between own vehicle JS and other vehicle TS in Embodiment 4 is shown.
  • FIG. 7 is a functional block diagram of a light distribution control device HSD according to a fifth embodiment.
  • the positional relationship between own vehicle JS and other vehicle TS of Embodiment 5 is shown.
  • 12 is a flowchart showing the operation of the light distribution control device HSD according to the fifth embodiment.
  • It is a functional block diagram of the light distribution control device HSD of Embodiment 6.
  • the positional relationship between own vehicle JS and other vehicle TS in Embodiment 6 is shown.
  • 12 is a flowchart showing the operation of the light distribution control device HSD according to the sixth embodiment.
  • Embodiment 1 The light distribution control device HSD of Embodiment 1 will be described.
  • FIG. 1 is a functional block diagram of the light distribution control device HSD of the first embodiment. The functions of the light distribution control device HSD of Embodiment 1 will be explained with reference to FIG. 1.
  • the light distribution control device HSD of the first embodiment constitutes a light distribution control system HSS together with the imaging section SE and the illumination lamp ST.
  • the light distribution control device HSD of Embodiment 1 includes a recognition section NS and a control section SG.
  • the recognition unit NS corresponds to a “recognition unit”
  • the control unit SG corresponds to a “control unit”.
  • FIG. 2 shows the positional relationship between the host vehicle JS and the other vehicle TS in the first embodiment.
  • the own vehicle JS is traveling on the road DR, and on the other hand, another vehicle TS is about to enter the road DR at the intersection KT where the own vehicle JS is approaching.
  • the photographing unit SE is, for example, a camera attached to the front of the host vehicle JS.
  • the photographing unit SE continuously photographs images in front of the host vehicle JS, that is, continuously photographs, for example, photographs a plurality of images of the intersection KT including the other vehicle TS described above.
  • the recognition unit NS recognizes the presence of the other vehicle TS and recognizes the vehicle width of the other vehicle TS based on a plurality of images of the intersection KT including the other vehicle TS taken by the imaging unit SE.
  • the recognition unit NS recognizes the presence of another vehicle TS by detecting, for example, a four-wheel vehicle (regardless of whether it is a large vehicle or a regular vehicle) and a two-wheel vehicle (motorcycle, mini-bike, etc.) in the plurality of images described above. This is done by determining whether or not a vehicle exists.
  • a four-wheel vehicle regardless of whether it is a large vehicle or a regular vehicle
  • a two-wheel vehicle motorcycle, mini-bike, etc.
  • the recognition unit NS recognizes the vehicle width of the other vehicle TS by, for example, analyzing the plurality of images described above in chronological order. For example, when the following conditions are satisfied, the recognition unit NS estimates that the other vehicle TS has two headlights, in other words, estimates that the other vehicle TS is a four-wheeled vehicle, and as a result, the other vehicle TS has two headlights. It is determined that the other vehicle TS has the width of a four-wheeled vehicle according to the distance between the two headlamps. In addition, you can specify the vehicle type (large car, regular car, light car, etc.) according to the distance between the two headlights, memorize the general vehicle width according to the car type, and read this out for use. good.
  • the vehicle type large car, regular car, light car, etc.
  • the other vehicle TS At time t0, in an image of the other vehicle TS seen from the side (for example, an image seen from the position of the own vehicle JS with respect to the other vehicle TS shown in FIG. 2 (left figure)), the other vehicle TS be recognized as having one headlight.
  • an image of the other vehicle TS viewed diagonally for example, as seen from the position of the own vehicle JS with respect to the other vehicle TS suggested from FIG. 2 (left diagram, center diagram)
  • image At time t1, in an image of the other vehicle TS viewed diagonally (for example, an image viewed from the position of the own vehicle JS with respect to the other vehicle TS shown in FIG. 2 (center view)), the other vehicle TS be recognized as having two headlights.
  • the recognition unit NS estimates that the other vehicle TS has one headlight, in contrast to the above, in other words, the other vehicle TS is a two-wheeled vehicle. As a result, it is determined that the other vehicle TS has the width of a general two-wheeled vehicle.
  • the control unit SG When the recognition unit NS recognizes the presence of another vehicle TS, the control unit SG performs a first light shielding on the recognized other vehicle TS. When the recognition unit NS recognizes the vehicle width of the other vehicle TS, the control unit SG also controls the first light shielding to be narrower in the width direction of the other vehicle TS and to emit a smaller amount of light than the first light shielding. Perform light shielding in step 2.
  • the "first shading control” means, for example, as shown in the solid line graph in FIG. This refers to controlling the irradiation by the illumination lamp ST in a slightly dark manner in which light is blocked and the amount of light after the light is blocked is relatively small, in other words, the amount of irradiated light is relatively large.
  • first light blocking control light is blocked in a slightly dark manner over a wide area for other vehicles TS.
  • the “second light-shielding control” refers to, for example, relatively short light-shielding in the road width direction of the road DR or the vehicle width direction of the other vehicle TS.
  • the irradiation by the illumination lamp ST is controlled in a dark manner in which the amount of light after shielding is relatively large, or in other words, the amount of emitted light is relatively small.
  • the "second light shielding control” locally shields light from the other vehicle TS in a dark manner.
  • relative refers to the mode of irradiation based on the mode of irradiation by one of the first light shielding control and the second light shielding control, and the mode of irradiation by the other.
  • the road width direction of the road DR or the vehicle width direction of the other vehicle TS will simply be referred to as “the vehicle width direction of the other vehicle TS.”
  • FIG. 3 shows the hardware configuration of the light distribution control device HSD of the first embodiment.
  • the light distribution control device HSD of Embodiment 1 includes a processor PR, a memory ME, and a storage medium KI, as shown in FIG. 3, in order to perform the above-mentioned functions. and an output unit SY.
  • the processor PR is the core of a well-known computer that operates the hardware according to the software.
  • the memory ME includes, for example, DRAM (Dynamic Random Access Memory) and SRAM (Static Random Access Memory).
  • the storage medium KI includes, for example, a hard disk drive (HDD), a solid state drive (SSD), and a ROM (read only memory).
  • the storage medium KI stores the program PRG.
  • the program PRG is a group of instructions that defines the content of processing to be executed by the processor PR.
  • the input section NY and the output section SY are composed of, for example, an input/output interface for exchanging signals with the outside of the light distribution control device HSD.
  • the processor PR executes the program PRG stored in the storage medium KI using the memory ME, and also executes the program PRG as necessary.
  • the functions of the recognition section NS and the control section SG are realized by controlling the operations of the input section NY and the output section SY.
  • FIG. 4 is a flowchart showing the operation of the light distribution control device HSD of the first embodiment. The operation of the light distribution control device HSD of the first embodiment will be described below with reference to the flowchart of FIG. 4.
  • Step ST11 As shown in FIG. 2 (left diagram), the host vehicle JS is traveling on the road DR, and the high beam is illuminated in the normal illumination mode shown by the dotted line in the graph of FIG. 2 (left diagram).
  • the recognition unit NS detects the image capturing unit SE (shown in FIG. 1).
  • the presence of the other vehicle TS is recognized based on the image of the intersection KT including the other vehicle TS taken by the TS.
  • the process proceeds to step ST12, and on the other hand, when the presence of the other vehicle TS is not recognized, the process returns to step ST11.
  • Step ST12 The control unit SG (shown in FIG. 1) performs first light shielding control toward the other vehicle TS, as shown by the solid line in the graph in FIG. 2 (center diagram).
  • the vertical axis is the light amount
  • the horizontal axis is the road width direction of the road DR or the vehicle width direction of the other vehicle TS (vehicle width direction of the other vehicle TS).
  • the graph in FIG. 2 (center diagram) shows that the light of the other vehicle TS is blocked in a slightly dark manner over a wide area.
  • Step ST13 The recognition unit NS recognizes the vehicle width of the other vehicle TS based on the image of the intersection KT including the other vehicle TS taken by the imaging unit SE, similar to step ST11.
  • the process proceeds to step ST14, and on the other hand, when the vehicle width of the other vehicle TS is not recognized, the process returns to step ST11.
  • the vehicle width of the other vehicle TS is recognized as shown in FIG. 2 (right diagram).
  • Step ST14 The control unit SG performs second light shielding control toward the other vehicle TS, as shown in the graph of FIG. 2 (right figure).
  • the light amount locally decreases significantly for the other vehicle TS (the light amount may be set to 0).
  • the graph in FIG. 2 (right diagram) shows that the light of the other vehicle TS is locally blocked in a dark manner.
  • step ST12 if the width of the other vehicle TS is not recognized in step ST13, the process returns to step ST11. That is, the first light shielding control is performed from when the presence of the other vehicle TS is recognized until the vehicle width of the other vehicle TS is recognized, and then, after the vehicle width of the other vehicle TS is recognized, the second light shielding control is performed. will be held.
  • intersection KT has been described as an example, but the intersection KT is not limited thereto, and may be a branch road, a merging road, or an intersection including an intersection (hereinafter collectively referred to as a "divergent road"). This also applies to the following embodiments.
  • the light distribution control device HSD of Embodiment 1 at time t1 which is before the conventional time point of recognizing the vehicle width of the other vehicle TS and at the time of recognizing the presence of the other vehicle TS. , performs first light blocking control that is different from conventional second light blocking control. Thereby, it is possible to suppress the possibility that glare will occur before the conventional second light shielding control is performed.
  • Embodiment 2 The light distribution control device HSD of Embodiment 2 will be described.
  • Embodiment 2 The functions and hardware configuration of the light distribution control device HSD of the second embodiment are similar to the functions and hardware configuration of the light distribution control device HSD of the first embodiment (shown in FIGS. 1 and 3). On the other hand, a configuration is added in which it is possible to recognize another vehicle TS that is overtaking.
  • FIG. 5 shows the positional relationship between the host vehicle JS and the other vehicle TS in the second embodiment.
  • the light distribution control device HSD of the second embodiment differs from the light distribution control device HSD of the first embodiment, which targets other vehicles TS entering the intersection KT, as shown in FIG.
  • the target is the TS of other vehicles.
  • the operation of the light distribution control device HSD of the second embodiment is basically the same as the operation of the light distribution control device HSD of the first embodiment (flowchart in FIG. 4).
  • the operation of the light distribution control device HSD according to the second embodiment will be described below with reference to FIGS. 4 and 5.
  • Step ST11 As shown in FIG. 5 (left figure), the host vehicle JS is traveling on the road DR, and the high beam is illuminated in the normal illumination mode shown by the dotted line in the graph of FIG. 5 (left figure).
  • the recognition unit NS uses the imaging unit SE (shown in FIG. 1). ), the presence of the other vehicle TS is recognized based on the image of the road DR including the other vehicle TS.
  • the photographing unit SE of the second embodiment is capable of photographing not only the area in front of the own vehicle JS but also the other vehicle TS that is about to overtake the own vehicle JS.
  • a distance measuring sensor capable of recognizing the other vehicle TS attempting to overtake the own vehicle JS may be used instead of the photographing unit SE capable of photographing another vehicle TS attempting to overtake the own vehicle JS.
  • Step ST12 In step ST11, as shown in FIG. 5 (left diagram), when it is recognized that the other vehicle TS is almost lined up with or has overtaken the own vehicle JS, the control unit SG (shown in FIG. 1) performs the first light shielding control toward the front, as shown by the solid line in the graph of FIG. 5 (center view).
  • Step ST13 Similar to step ST11, the recognition unit NS detects the other vehicle TS based on the image of the road DR including the other vehicle TS photographed by the photographing unit SE, for example, based on the distance between the tail lamps of the other vehicle TS. Recognizes the vehicle width.
  • Step ST14 When the vehicle width of the other vehicle TS is recognized in step ST13, the control unit SG directs the second vehicle toward the other vehicle TS, as shown by the solid line in the graph of FIG. 5 (right figure). Performs light blocking control.
  • the light distribution control device HSD of the second embodiment is able to control the light distribution control device HSD according to the first embodiment even if the other vehicle TS overtakes the road DR, which is different from the approach by the other vehicle TS at the intersection KT in the first embodiment. Similarly, it is possible to suppress the possibility of glare occurring before the conventional second light shielding control is performed.
  • FIG. 6 is a functional block diagram of the light distribution control device HSD according to the third embodiment. The functions of the light distribution control device HSD of Embodiment 3 will be explained with reference to FIG. 6.
  • the light distribution control device HSD of the third embodiment includes a recognition section NS and a control section SG, similarly to the light distribution control device HSD of the first embodiment.
  • the light distribution control device HSD of the third embodiment is different from the light distribution control device HSD of the first embodiment, and further includes a calculation unit SS.
  • the calculation unit SS corresponds to a “calculation unit”.
  • the light distribution control system HSS is different from the light distribution control system HSS of the first embodiment, and further includes a measurement unit SO.
  • the measurement unit SO is, for example, a ToF (Time of Flight) sensor (eg, radar, lidar, sonar) attached to the front of the host vehicle JS, a so-called distance measurement sensor.
  • the measurement unit SO measures information for calculating the distance KR (shown in FIG. 7 (center diagram)) to another vehicle TS existing in front of the host vehicle JS, and specifically, The time required for light etc. to travel back and forth between the host vehicle JS and the other vehicle TS is measured.
  • the hardware configuration of the light distribution control device HSD of the third embodiment is similar to the hardware configuration of the light distribution control device HSD of the first embodiment (shown in FIG. 3).
  • FIG. 7 shows the positional relationship between the host vehicle JS and the other vehicle TS in the third embodiment.
  • the light distribution control device HSD of the third embodiment targets the approach by another vehicle TS at an intersection.
  • FIG. 8 is a flowchart showing the operation of the light distribution control device HSD of the third embodiment. The operation of the light distribution control device HSD of the third embodiment will be explained with reference to the flowchart of FIG. 8.
  • Step ST21 As shown in FIG. 7 (left figure), the own vehicle JS is traveling on the road DR, and the high beam is illuminated in the normal irradiation mode shown by the dotted line in the graph of FIG. 7 (left figure).
  • the recognition unit NS detects the image capturing unit SE (shown in FIG. 6). The presence of the other vehicle TS is recognized based on the image of the intersection KT including the other vehicle TS taken by the TS.
  • Step ST22 When the presence of the other vehicle TS is recognized in step ST21, the measurement unit SO (shown in FIG. 6) measures the above-described time required between the own vehicle JS and the other vehicle TS. The calculation unit SS calculates the distance KR between the host vehicle JS and the other vehicle TS based on the required time measured by the measurement unit SO.
  • Step ST23 The control unit SG (shown in FIG. 6) performs first light shielding control on the other vehicle TS, as shown by the solid line in the graph of FIG. 7 (center diagram).
  • the control unit SG adjusts the length of the distance KR calculated by the calculation unit SS. Adjustment is made approximately in the direction along the road DR (X-axis direction) according to the above.
  • the control unit SG increases the amount of light emitted by the illumination lamp ST, that is, makes it brighter, as the distance KR becomes longer.
  • the smaller the distance KR is the smaller the amount of light emitted by the illumination lamp ST is, that is, the darker it is.
  • Step ST24 The recognition unit NS recognizes the vehicle width of the other vehicle TS based on the image of the intersection KT including the other vehicle TS taken by the imaging unit SE, similar to step ST21.
  • Step ST25 When the vehicle width of the other vehicle TS is recognized in step ST24, the control unit SG provides the other vehicle TS with the second light shielding control as shown by the solid line in the graph of FIG. 7 (right figure). I do.
  • the control unit SG sets a value (( The minimum value in the graph of FIG. 7 (right diagram) may be adjusted.
  • the light intensity is made sufficiently small, so the risk of glaring other vehicles TS is low, and the light intensity of the illumination lamp ST is the minimum value (the minimum value in the graph of Fig. 7 (right figure)). It is not necessarily necessary to adjust the value
  • the light distribution control device HSD of the third embodiment similarly to the light distribution control device HSD of the first embodiment, it is possible to suppress the possibility of glare occurring before the conventional second light blocking control is performed. Can be done.
  • the light distribution control device HSD of the third embodiment adjusts the light intensity of the illumination lamp ST in the direction generally along the road DR, depending on the distance KR between the host vehicle JS and the other vehicle TS. By doing so, it is possible to more accurately suppress the possibility that the above-mentioned glare will occur. Further, when the distance to the other vehicle TS is long, the amount of light is not reduced more than necessary, which contributes to ensuring sufficient visibility for the driver.
  • Embodiment 4 The light distribution control device HSD of Embodiment 4 will be described.
  • FIG. 9 is a functional block diagram of the light distribution control device HSD according to the fourth embodiment. The functions of the light distribution control device HSD of Embodiment 4 will be explained with reference to FIG. 9.
  • the light distribution control device HSD of Embodiment 4 includes a recognition section NS and a control section SG, as shown in FIG.
  • the light distribution control device HSD of the fourth embodiment is different from the light distribution control device HSD of the first embodiment, and as shown in FIG. 9, it further includes a prediction unit YS.
  • the prediction unit YS predicts the presence of another vehicle TS based on the image of the intersection KT (shown in FIG. 10 (left diagram)) including the other vehicle TS, photographed by the imaging unit SE.
  • the light distribution control system HSS includes the photographing section SE and the illumination lamp ST, similarly to the light distribution control system HSS of the first embodiment, and on the other hand, the light distribution control system HSS of the first embodiment , it further includes a communication unit TU.
  • the communication unit TU learns the position of the other vehicle TS through communication between the own vehicle JS and the other vehicle TS (for example, one-on-one communication or communication via the cloud). gain
  • the hardware configuration of the light distribution control device HSD of the fourth embodiment is similar to the hardware configuration of the light distribution control device HSD of the first embodiment (shown in FIG. 3).
  • FIG. 10 shows the positional relationship between the host vehicle JS and the other vehicle TS in the fourth embodiment.
  • the light distribution control device HSD of the fourth embodiment targets the approach by another vehicle TS at the intersection KT, similarly to the light distribution control device HSD of the first embodiment.
  • FIG. 11 is a flowchart showing the operation of the light distribution control device HSD of the fourth embodiment. The operation of the light distribution control device HSD of the fourth embodiment will be explained with reference to the flowchart of FIG. 11.
  • Step ST31 As shown in FIG. 10 (left diagram), the host vehicle JS is traveling on the road DR, and the high beam is illuminated in the normal illumination mode shown by the dotted line in the graph of FIG. 10 (left diagram).
  • the prediction unit YS uses the image of the intersection KT including the other vehicle TS taken by the imaging unit SE (shown in FIG. 9) to predict the location of the other vehicle TS. Predict the existence of More specifically, the prediction unit YS performs the above prediction based on the light irradiated by the headlight of the other vehicle TS or the direction of the other vehicle TS in the above image, as shown in FIG. 10 (left figure). This is performed based on the road surface lighting light indicating the instruction, and also by learning the position of the other vehicle TS through communication between the own vehicle JS and the other vehicle TS.
  • Step ST32 When the presence of another vehicle TS is predicted in step ST31, the control unit SG (shown in FIG. 9) directs the other vehicle TS toward the other vehicle TS as shown by the solid line in the graph of FIG. 10 (center diagram).
  • the first light shielding control is performed as follows.
  • Step ST33 Similar to step ST31 of the first embodiment, the recognition unit NS recognizes the vehicle width of the other vehicle TS based on the image of the intersection KT including the other vehicle TS taken by the imaging unit SE.
  • Step ST34 When the vehicle width of the other vehicle TS is recognized in step ST33, the control unit SG moves the second vehicle toward the other vehicle TS as shown by the solid line in the graph of FIG. Performs light blocking control.
  • the first light blocking control is performed when the prediction unit YS predicts that another vehicle TS will enter the intersection KT.
  • the first light blocking control can be started earlier than the light distribution control device HSD of the first embodiment, which performs the first light blocking control at the time when the presence of the other vehicle TS is recognized.
  • the possibility of glare occurring before the conventional second light shielding control is performed can be suppressed from an earlier stage.
  • Embodiment 5 The light distribution control device HSD of Embodiment 5 will be described.
  • FIG. 12 is a functional block diagram of the light distribution control device HSD according to the fifth embodiment. The functions of the light distribution control device HSD of Embodiment 5 will be described with reference to FIG. 12.
  • the light distribution control device HSD of the fifth embodiment includes a recognition unit NS, a prediction unit YS, and a control unit, similarly to the light distribution control device HSD of the fourth embodiment (shown in FIG. 9). Section SG.
  • the light distribution control device HSD of the fifth embodiment is different from the light distribution control device HSD of the fourth embodiment, as shown in FIG. 12, and further includes an acquisition unit NU.
  • Obtaining part NU corresponds to "obtaining part”.
  • the acquisition unit NU acquires the information in FIG. 13 (left As shown in Figure), the map data CD showing the situation of the area to which the own vehicle JS is approaching, more specifically, the target area TR, which is the area including the intersection KT in front of the own vehicle JS and its surroundings.
  • the map data CD indicates, for example, the presence or absence, position, etc. of buildings, shops, street lights, etc. within the target region TR.
  • the light distribution control system HSS includes an imaging section SE, an illumination lamp ST, and a communication section TU, similar to the light distribution control system HSS of the fourth embodiment.
  • the hardware configuration of the light distribution control device HSD of the fifth embodiment is similar to the hardware configuration of the light distribution control device HSD of the first embodiment (shown in FIG. 3).
  • FIG. 13 shows the positional relationship between the host vehicle JS and the other vehicle TS in the fifth embodiment.
  • the light distribution control device HSD of the fifth embodiment targets the approach by another vehicle TS at the intersection KT, similarly to the light distribution control device HSD of the fourth embodiment.
  • FIG. 14 is a flowchart showing the operation of the light distribution control device HSD of the fifth embodiment. The operation of the light distribution control device HSD of the fifth embodiment will be explained with reference to the flowchart of FIG. 14.
  • Step ST41 As shown in FIG. 13 (left figure), the host vehicle JS is traveling on the road DR, and the high beam is illuminated in the normal illumination mode shown by the dotted line in the graph of FIG. 13 (left figure). When irradiating with Obtain the map data CD shown (shown in FIG. 12).
  • Step ST42 The prediction unit YS predicts the presence of another vehicle TS based on the image of the intersection KT including the other vehicle TS, which is photographed by the photographing unit SE (shown in FIG. 12). This is done with reference to the presence, location, etc. of buildings, shops, street lights, etc. in the TR indicated by the map data CD. That is, by excluding buildings, shops, street lights, etc. indicated by the map data CD from the image of the intersection KT including the other vehicle TS photographed by the photographing unit SE, the illuminated parts that could easily be mistaken for other vehicles TS were excluded. Then, the other vehicle TS and the vehicle width are recognized.
  • Steps ST43 to ST45 The light distribution control device HSD performs operations similar to steps ST32 to ST34 in the fourth embodiment. Particularly, in step ST44, the recognition unit NS recognizes the vehicle width of the other vehicle TS based on the image of the intersection KT including the other vehicle TS, and also recognizes the width of buildings, shops, street lamps, etc. in the target area TR. This is done after referring to the presence/absence and location of etc.
  • the prediction unit YS and the recognition unit NS predict the presence of the other vehicle TS and recognize the vehicle width of the other vehicle TS.
  • the presence/absence, position, etc. of buildings, shops, street lights, etc. in the target region TR are referred to, and these are excluded.
  • the recognition unit NS predicts the presence of another vehicle TS.
  • the presence of buildings, shops, street lights, etc. may be recognized by referring to the presence or absence, position, etc. of buildings, shops, street lights, etc. within the target region TR.
  • Embodiment 6 A light distribution control device HSD according to a sixth embodiment will be described.
  • FIG. 15 is a functional block diagram of the light distribution control device HSD according to the sixth embodiment. The functions of the light distribution control device HSD of Embodiment 6 will be described with reference to FIG. 15.
  • the light distribution control device HSD of the sixth embodiment includes a recognition section NS and a control section SG, similarly to the light distribution control device HSD of the first embodiment (shown in FIG. 1). Similarly to the light distribution control device HSD of Embodiment 3 (shown in FIG. 6), it further includes a calculation unit SS, and similarly to the light distribution control device HSD of Embodiment 5 (shown in FIG. 12), it can be obtained. It further includes part NU.
  • the light distribution control system HSS similarly to the light distribution control system HSS of the third embodiment (shown in FIG. 6), includes an imaging section SE, a measuring section SO, irradiation lamp ST.
  • the hardware configuration of the light distribution control device HSD of the sixth embodiment is similar to the hardware configuration of the light distribution control device HSD of the first embodiment (shown in FIG. 3).
  • FIG. 16 shows the positional relationship between the host vehicle JS and the other vehicle TS in the sixth embodiment.
  • the light distribution control device HSD of the sixth embodiment targets the approach of another vehicle TS at the intersection KT, similarly to the light distribution control device HSD of the first embodiment.
  • FIG. 17 is a flowchart showing the operation of the light distribution control device HSD of the sixth embodiment. The operation of the light distribution control device HSD of the sixth embodiment will be explained with reference to the flowchart of FIG. 17.
  • Step ST51 As shown in FIG. 16 (left figure), the own vehicle JS is traveling on the road DR, and the high beam is illuminated in the normal illumination mode shown by the dotted line in the graph of FIG. 16 (left figure). When irradiating with Obtain the map data CD shown (shown in FIG. 15). In this flowchart, subsequent processing is performed only within the range of the target region TR. This prevents the possibility of misrecognizing another vehicle TS.
  • Step ST52 The recognition unit NS (shown in FIG. 15) recognizes the presence of the other vehicle TS based on the image of the intersection KT including the other vehicle TS photographed by the photographing unit SE. This is done by referring to the presence/absence, position, etc. of buildings, shops, street lights, etc. in the TR indicated by the map data CD.
  • Step ST53 The calculation unit SS (shown in FIG. 15) calculates the distance KR between the host vehicle JS and the other vehicle TS based on the required time measured by the measurement unit SO.
  • Step ST54 The control unit SG (shown in FIG. 15) performs first light shielding control toward the other vehicle TS. More specifically, the control unit SG adjusts the light amount of the illumination lamp ST in a direction generally along the road DR, depending on the length of the distance KR.
  • Step ST55 The recognition unit NS recognizes the vehicle width of the other vehicle TS based on the image of the intersection KT including the other vehicle TS photographed by the photographing unit SE, and also based on the map data within the target region TR. This is done by referring to the presence, location, etc. of buildings, shops, street lights, etc. indicated by the CD.
  • Step ST56 The control unit SG performs second light shielding control toward the other vehicle TS. More specifically, the control unit SG may adjust the light amount of the illumination lamp ST in a direction generally along the road DR, depending on the length of the distance KR.
  • the light distribution control device HSD of the sixth embodiment performs the light distribution only within the range of the target region TR. This prevents the possibility of misrecognizing another vehicle TS. Furthermore, since the light distribution control device HSD of the sixth embodiment is a combination of the configurations of the first embodiment, the third embodiment, and the fifth embodiment, the effects of the first embodiment, the third embodiment, and the fifth embodiment described above can be obtained. You can get it.
  • the light distribution control device can be used to suppress the possibility of glare occurring between the vehicle ahead and the own vehicle.
  • CD map data CD map data, DR road, HSD light distribution control device, HSS light distribution control system, JS own vehicle, KI storage medium, KR distance, KT intersection, ME memory, NS recognition unit, NU acquisition unit, NY input unit, PR processor , PRG program, SE photography unit, SG control unit, SO measurement unit, SS calculation unit, ST illumination lamp, SY output unit, TR target area, TS other vehicles, TU communication unit, YS prediction unit.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Traffic Control Systems (AREA)

Abstract

Un dispositif de commande de distribution de lumière (HSD) comprend : une unité de reconnaissance (NS) qui reconnaît la présence d'un autre véhicule (TS) et la largeur de l'autre véhicule (TS) sur la base d'une image contenant l'autre véhicule (TS) ; et une unité de commande (SG) qui, lorsque l'unité de reconnaissance (NS) a reconnu la présence de l'autre véhicule (TS), amène un phare de projection (ST) à effectuer un premier ombrage vers l'autre véhicule reconnu (TS) et, lorsque l'unité de reconnaissance (NS) a reconnu la largeur de l'autre véhicule (TS), elle amène le phare de projection (ST) à effectuer un second ombrage qui est plus étroit dans le sens de la largeur de l'autre véhicule (TS) et qui a une quantité inférieure de lumière projetée par comparaison au premier ombrage.
PCT/JP2022/012111 2022-03-17 2022-03-17 Dispositif de commande de distribution de lumière WO2023175814A1 (fr)

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JP2024507332A JP7483176B2 (ja) 2022-03-17 2022-03-17 配光制御装置
PCT/JP2022/012111 WO2023175814A1 (fr) 2022-03-17 2022-03-17 Dispositif de commande de distribution de lumière

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015164842A (ja) * 2014-02-10 2015-09-17 株式会社デンソー 前照灯制御装置
JP2016027977A (ja) * 2015-10-19 2016-02-25 スタンレー電気株式会社 車両用前照灯システム
JP2016168915A (ja) * 2015-03-12 2016-09-23 株式会社小糸製作所 車両灯具システム
JP2019089386A (ja) * 2017-11-13 2019-06-13 スタンレー電気株式会社 車両用前照灯の制御装置、車両用前照灯、及び車両用前照灯の制御方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015164842A (ja) * 2014-02-10 2015-09-17 株式会社デンソー 前照灯制御装置
JP2016168915A (ja) * 2015-03-12 2016-09-23 株式会社小糸製作所 車両灯具システム
JP2016027977A (ja) * 2015-10-19 2016-02-25 スタンレー電気株式会社 車両用前照灯システム
JP2019089386A (ja) * 2017-11-13 2019-06-13 スタンレー電気株式会社 車両用前照灯の制御装置、車両用前照灯、及び車両用前照灯の制御方法

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