WO2013137324A1 - Dispositif d'éclairage embarqué - Google Patents

Dispositif d'éclairage embarqué Download PDF

Info

Publication number
WO2013137324A1
WO2013137324A1 PCT/JP2013/057022 JP2013057022W WO2013137324A1 WO 2013137324 A1 WO2013137324 A1 WO 2013137324A1 JP 2013057022 W JP2013057022 W JP 2013057022W WO 2013137324 A1 WO2013137324 A1 WO 2013137324A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle
headlamp
image
dimming
illumination
Prior art date
Application number
PCT/JP2013/057022
Other languages
English (en)
Japanese (ja)
Inventor
龍 水野
Original Assignee
株式会社デンソー
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.)
Filing date
Publication date
Application filed by 株式会社デンソー filed Critical 株式会社デンソー
Publication of WO2013137324A1 publication Critical patent/WO2013137324A1/fr

Links

Images

Classifications

    • 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
    • B60Q1/1415—Dimming circuits
    • B60Q1/1423—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic
    • B60Q1/143—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic combined with another condition, e.g. using vehicle recognition from camera images or activation of wipers
    • 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
    • B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/40—Indexing codes relating to other road users or special conditions
    • B60Q2300/42—Indexing codes relating to other road users or special conditions oncoming vehicle

Definitions

  • the present invention relates to an in-vehicle illumination device that illuminates the traveling direction of a vehicle.
  • an in-vehicle illumination device for not directly illuminating an oncoming vehicle.
  • an image of the traveling direction of the vehicle is acquired to determine whether there is an oncoming vehicle.
  • illumination is performed while avoiding the range (the range in which the oncoming vehicle is present) or reducing the illuminance in the range.
  • Judgment of the presence or absence of an oncoming vehicle is performed by detecting the headlamp of the oncoming vehicle that appears bright in the image (see Patent Document 1).
  • the above-mentioned in-vehicle lighting device has the following problems.
  • the reflectors reflectors, road signs, etc.
  • the above-mentioned in-vehicle lighting device misrecognizes the bright part as the headlight of the oncoming vehicle.
  • lighting is performed while avoiding a brightly reflected range or lowering the illuminance, which may limit the driver's field of view.
  • the in-vehicle illumination device reduces the intensity of light from a headlamp to a predetermined intensity or less over a predetermined time, thereby reducing the intensity of light from the headlamp.
  • an illuminated state hereinafter referred to as a dimmed state
  • an image in the traveling direction of a vehicle hereinafter simply referred to as a vehicle
  • the presence or absence of an oncoming vehicle is judged based on the image (image at the time of light reduction) acquired in the light reduction state.
  • the headlamp illumination range is changed.
  • the illumination range in the traveling direction of the vehicle is divided into a first illumination range in which light reaches a wide left and right range in the traveling direction, and a second illumination that is narrower than the first illumination range.
  • the range can be changed.
  • the illumination range is set as follows. First, with the headlamp illuminating the direction of travel, the intensity of the headlamp light is dimmed below a predetermined intensity over a predetermined time.
  • the “dimming” is a concept including “light-off”. And the image of the advancing direction of a vehicle is acquired in the state which reduced the intensity
  • the illumination range of a headlamp is set to a 2nd illumination range.
  • the illumination range of the headlamp is not set to the second illumination range that is narrower than the first illumination range. Therefore, the driver's field of view is not limited.
  • an image in the traveling direction of the vehicle may be acquired even in a normal state where the intensity of the headlamp light is not dimmed. Then, it may be determined whether or not the headlamp is dimmed based on an image acquired in a normal state (normal image).
  • the process of setting the headlamp to a dimmed state or acquiring an image at the time of dimming may be performed only when necessary. Therefore, the illumination control process can be simplified.
  • the dimming state may be set at a predetermined cycle without determining whether or not the headlamp is dimmed.
  • the illumination control process can be simplified.
  • the in-vehicle illumination device of the present disclosure that periodically dims the headlamp, information on the running state of the vehicle (running state information) is acquired and the headlamp is turned on at a cycle according to the running state information. It is good also as a dimming state.
  • the traveling state information of the vehicle it is possible to transmit the traveling state information of the vehicle to another vehicle equipped with the in-vehicle lighting device of the present disclosure using the cycle of dimming the headlamp. Therefore, the traveling state information of the other vehicle can be acquired from the cycle in which the headlamps of the other vehicle are dimmed. In this way, it is possible to ensure traveling safety using the acquired traveling state information.
  • the in-vehicle illumination device 100 of this embodiment includes a headlight 110, a headlight control unit 112, a front camera 120, a control device 130, and the like, and is mounted on the vehicle 1.
  • the headlamp 110 illuminates the traveling direction of the vehicle 1.
  • the headlamp control unit 112 controls the operation of the headlamp 110.
  • the front camera 120 acquires an image in the traveling direction.
  • the control device 130 controls the headlamp control unit 112 and the front camera 120.
  • the headlamp 110 is configured by incorporating a plurality of light emitting diodes (LEDs), and each LED can be quickly switched between a lighting state and a light-off state.
  • the headlamp control unit 112 controls the switching of each LED to a lighted state or a lighted off state, and controls to change the illumination range of the headlight 110 by moving the optical axis of each LED.
  • the headlamp control unit 112 may change the illumination range by moving the optical axis of the entire headlamp 110.
  • the front camera 120 is equipped with an image sensor and can output two-dimensional image data.
  • the image sensor elements such as a charge-coupled device (CCD) and a complementary metal oxide semiconductor (CMOS) are arranged in a matrix.
  • CCD charge-coupled device
  • CMOS complementary metal oxide semiconductor
  • the front camera 120 of this embodiment corresponds to “image acquisition means”.
  • the control device 130 is a so-called microcomputer in which a CPU, a ROM, a RAM, and the like are connected by a bus so that data can be read and written. Various programs and data necessary for executing the programs are stored in advance in the ROM. Various processes are performed by the CPU reading programs and data from the ROM and executing the programs using the RAM.
  • the control device 130 of this embodiment includes an image processing module 132 and a control module 134.
  • the “module” is an abstract concept when the control device 130 is divided for convenience from the viewpoint of the functions realized by the control device 130.
  • the module entity may include a part of a program, a collection of a plurality of programs, or hardware mounted on the control device 130.
  • the image processing module 132 When the image processing module 132 receives the image data of the front image (image in the traveling direction of the vehicle 1) acquired by the front camera 120, the image processing module 132 performs predetermined image processing. As a result, the image processing module 132 detects the headlamp of the oncoming vehicle and outputs the result to the control module 134.
  • the control module 134 When the headlamp 110 is turned on by the driver of the vehicle 1, the control module 134 outputs a trigger signal instructing the front camera 120 to acquire a front image at a constant cycle (for example, 20 msec). Further, the headlamp 110 can change the illumination range. A signal (mode signal) for setting the illumination range is output from the control module 134 to the headlamp control unit 112.
  • the in-vehicle illumination device 100 can turn off the headlamp 110 for a predetermined turn-off time even when the headlamp 110 is turned on by the driver. Yes.
  • the control module 134 sends a turn-off signal that turns off the headlamp 110 for the turn-off time to the headlamp control unit 112. Output.
  • the turn-off time is set to a time (for example, 2 msec) that is approximately the same as or shorter than the period in which the front camera 120 acquires the front image.
  • the headlamp 110 is “turned off” for the turn-off time while being turned on by the driver.
  • “light-off” does not necessarily mean “complete light-off”, but also includes “light-reduction” meaning to reduce the light intensity.
  • the “dimming” is sufficient if it can be clearly recognized by the image processing module 132 that the light intensity of the headlamp 110 is low. For example, the light intensity of the headlamp 110 may be reduced to less than half.
  • the headlamp 110 is turned off or dimmed when the control module 134 outputs a turn-off signal. Therefore, the control module 134 corresponds to “dimming means”.
  • the turn-off time in this embodiment corresponds to the “dimming time”.
  • FIG. 2A and 2B illustrate the first illumination range and the second illumination range of the headlamp 110, respectively.
  • a case where the vehicle 1 is traveling on a road with one lane on one side (two lanes on both sides) is shown, and a thick broken line in the figure represents a center line.
  • the hatched area in the figure represents a range where the light from the headlamp 110 does not reach.
  • the first illumination range shown in FIG. 2A the light from the headlamp 110 reaches a wide left and right range in the traveling direction of the vehicle 1. For this reason, the driver
  • the range in which light reaches the oncoming lane is narrow. For this reason, although there is no fear that the driver of the oncoming vehicle feels dazzling, the field of view of the driver of the vehicle 1 is limited compared to the first illumination range.
  • the control module 134 outputs to the headlamp control unit 112 which mode is set by outputting a mode signal.
  • the headlamp controller 112 controls the headlamp 110 according to the mode signal, thereby realizing an illumination range corresponding to the designated illumination mode.
  • the illumination range of the headlamp 110 is set by the control module 134 outputting the mode signal. Therefore, the control module 134 corresponds to “illumination range setting means”.
  • the illumination mode designated by the control module 134 for the headlamp control unit 112 is determined by whether or not the image processing module 132 detects an oncoming vehicle from the front image. That is, when no oncoming vehicle is detected in the front image, the view priority mode is determined in order to sufficiently secure the driver's view. On the other hand, when an oncoming vehicle is detected, the visibility restriction mode is determined so that the driver of the oncoming vehicle does not feel dazzling. Thus, in this embodiment, the image processing module 132 detects the presence or absence of an oncoming vehicle in the front image. Therefore, the image processing module 132 corresponds to “oncoming vehicle determination means”.
  • Reflectors such as reflectors and road signs are usually installed on the side of the road or on the center line. For this reason, when the front camera 120 acquires a front image, the light of the headlamp 110 may be reflected and these reflections may appear brightly in the front image. Then, the image processing module 132 misrecognizes the reflected object as the headlight of the oncoming vehicle, and the illumination mode of the headlight 110 is set to the view restriction mode even though the oncoming vehicle does not actually exist. It can happen to switch. Since the illumination range is set to the second illumination range in the view restriction mode, the driver's view is restricted as compared to the view priority mode. Therefore, in the in-vehicle illumination device 100 of the present embodiment, the following processing is performed, and the reflected object appears brightly in the front image, so the image processing module 132 may misrecognize that an oncoming vehicle exists. Make sure there is no.
  • FIG. 3 shows a flowchart of the illumination control process executed by the in-vehicle illumination device 100 of this embodiment.
  • This lighting control process is a process that is automatically executed by the control device 130 (image processing module 132, control module 134, etc.) of the in-vehicle lighting device 100 when the driver of the vehicle 1 lights the headlamp 110.
  • the control device 130 first sets the headlamp 110 to the view priority mode (step S100).
  • the control module 134 outputs a mode signal for designating the visibility priority mode to the headlamp control unit 112.
  • the control device 130 determines whether or not the interval time has elapsed (step S102).
  • the interval time is a time (for example, 20 msec) corresponding to a period in which the front camera 120 acquires a front image.
  • a timer (not shown) built in the control device 130 is set, The interval time is started.
  • step S102 when it is determined that the interval time has not elapsed (step S102: NO), the control device 130 is in a standby state while repeating the same determination.
  • step S102: YES when determining that the interval time has elapsed (step S102: YES), the control device 130 causes the front camera 120 to output a trigger signal from the control module 134 to acquire a front image (step S104). That is, when the front camera 120 receives the trigger signal, the image data remaining in the built-in image sensor is reset. Thereafter, the front camera 120 opens the shutter for a predetermined exposure time and generates new image data on the image sensor.
  • the image data obtained in this way is data indicating a two-dimensional luminance distribution on the image sensor.
  • the front camera 120 outputs the image data thus obtained to the image processing module 132.
  • the control device 130 When the image data of the front image is received from the front camera 120, the control device 130 (specifically, the image processing module 132) performs the following image processing. Thereby, the control apparatus 130 judges whether the bright spot which becomes a candidate of an oncoming vehicle exists in a front image (step S106).
  • a luminance region (bright spot) is extracted by comparing the luminance indicated in the image data with a predetermined threshold value. If the headlight of the oncoming vehicle is reflected in the front image, then two bright spots of similar size should be captured side by side. However, the interval and direction of the two bright spots vary depending on the distance from the oncoming vehicle, the slope of the road surface, and the like.
  • an allowable range with a certain margin is set in the image processing module 132, and a bright spot pair that satisfies this allowable range is searched. If no such bright spot pair is found, the image processing module 132 determines that there is no bright spot that is a candidate for the oncoming vehicle (step S106: NO), and the control returns to step S100. In step S100, the image processing module 132 sets the headlamp 110 to the visibility priority mode, and then starts measuring the interval time (step S102). On the other hand, when a pair of bright spots that satisfy the allowable range is found, the image processing module 132 determines that there is a bright spot that is a candidate for an oncoming vehicle (step S106: YES).
  • the control device 130 when a bright spot that is a candidate for an oncoming vehicle is found, the control device 130 (specifically, the control module 134) outputs a turn-off signal (step S108).
  • the turn-off signal is a signal that the control module 134 instructs the headlamp control unit 112 to turn off the headlamp 110 that is turned on for the aforementioned turn-off time.
  • the headlamp 110 may be simply dimmed rather than completely turned off.
  • the control module 134 when the image processing module 132 detects a bright spot that is a candidate for an oncoming vehicle from the front image when the headlamp 110 is lit, the control module 134 outputs a turn-off signal. Therefore, in the present embodiment, the image processing module 132 corresponds to “light reduction determination means”. Further, the front image when the headlamp 110 is lit corresponds to the “normal image”.
  • the control module 134 outputs a trigger signal to the front camera 120 while the headlamp 110 is turned off (or dimmed), thereby acquiring a front image that is turned off (or dimmed). (Step S110).
  • the turn-off time of the headlamp 110 is set to a time that is approximately the same as or shorter than the period (for example, 20 msec) at which the front camera 120 acquires the front image. For this reason, the driver does not notice that the headlamp 110 is turned off (or dimmed).
  • the front image acquired by the front camera 120 while the headlamp 110 is turned off (or dimmed) corresponds to the “image during dimming”.
  • the control device 130 determines whether or not a bright spot extracted as a candidate for an oncoming vehicle from the previously acquired lit front image is present in the unlit front image (step S112).
  • the determination is made as follows.
  • the bright spot previously extracted from the front image may be the headlight of the oncoming vehicle. In this case, the bright spot should also appear in the front image being turned off.
  • the bright spot previously extracted from the front image as a candidate for an oncoming vehicle may be reflected in the front image by reflection of the light from the headlight 110 of the vehicle 1 by a reflector such as a roadside. is there. In this case, the bright spot should have disappeared in the front image being turned off.
  • step S112 YES
  • the control device 130 sets the headlamp 110 to the view restriction mode so as not to bother the driver of the oncoming vehicle (step S114).
  • the control module 134 outputs a mode signal designating the view restriction mode to the headlamp control unit 112.
  • step S112 when the bright spot extracted as the oncoming vehicle candidate is not in the front image being turned off (step S112: NO), the bright spot is the light from the headlamp 110 of the vehicle 1. Is reflected by a reflector on the side of the road, etc., and can be determined not to be a headlight of an oncoming vehicle. Therefore, the control device 130 determines whether or not the current illumination mode is the view restriction mode (step S116). When determining that the current illumination mode is the view restriction mode (step S116: YES), the control device 130 sets the headlamp 110 to the view priority mode (step S118). Thereafter, the control returns to step S102. In step S102, the control device 130 sets a built-in timer with confidence, and starts counting the interval time again. On the other hand, when the control device 130 determines that the current illumination mode is the view priority mode (step S116: NO), the control immediately returns to step S102. In step 102, the control device 130 sets the timer again and starts measuring the interval time.
  • FIG. 4 illustrates a state in which the illumination mode of the headlamp 110 is switched by the illumination control process described above.
  • the illumination mode of the headlamp 110 is initially set to the visibility priority mode (see step S100 in FIG. 3). Further, the front camera 120 acquires a front image every time a predetermined interval time elapses. If there is no bright spot that is a candidate for an oncoming vehicle in the acquired forward image, the headlamp 110 is kept lit in that illumination mode. Then, when the interval time elapses, the front camera 120 acquires the front image again.
  • the control module 134 sends the headlight control unit 112 to A turn-off signal is output.
  • the headlamp 110 is turned off for a predetermined turn-off time.
  • the extinguishing signal is ON only during the extinguishing time, and the extinguishing state of the headlamp 110 is ended when the extinguishing signal is turned off.
  • the turn-off signal may be turned on only for a short time, and the headlight 110 may be kept off during the subsequent turn-off time.
  • a front image is acquired by the front camera 120 (corresponding to step S110 in FIG. 3). If a bright spot that is a candidate for an oncoming vehicle does not remain in the acquired forward image, the bright spot can be determined not to be due to the headlamp of the oncoming vehicle. Therefore, the view priority mode is maintained as it is. Thereafter, when the interval time elapses, the front camera 120 acquires the front image again.
  • a bright spot that is a candidate for an oncoming vehicle is found from the front image acquired while the headlamp 110 is lit, and then acquired with the headlamp 110 turned off.
  • the candidate bright spot remains in the forward image.
  • it can be determined that the bright spot is the headlight of the oncoming vehicle (corresponding to step S112: YES in FIG. 3). Therefore, the illumination mode of the headlamp 110 is set to the view restriction mode.
  • a bright spot that is a candidate for an oncoming vehicle is found in the forward image acquired at the timing of time b, and the bright spot is also present in the forward image acquired while the headlamp 110 is turned off. Therefore, a state in which the illumination mode is changed to the view restriction mode is shown. Even in the view restriction mode, the front image is acquired every time the interval time elapses. In other words, in the example illustrated in FIG. 4, a front image is acquired even at time c when the interval time has elapsed from time b, and it is determined whether there is a bright spot that is a candidate for an oncoming vehicle. In the illustrated example, since a candidate bright spot is found at time c, the headlamp 110 is turned off and the front image is acquired again. As a result, since a candidate bright spot is also present in the front image being turned off, it is shown that the view restriction mode is maintained as it is.
  • the illumination mode of the headlamp 110 is set to the view priority mode.
  • a bright spot that is a candidate for an oncoming vehicle is found in the on-front image acquired at the time d, but the bright spot is displayed on the front image when the headlamp 110 is off. Is not found, so that the lighting mode is returned to the view priority mode. Thereafter, the forward image is acquired every time the interval time elapses.
  • FIG. 5A illustrates a front image obtained while the headlamp 110 is turned on.
  • FIG. 5B illustrates a front image obtained while the headlamp 110 is turned off.
  • the thick broken line shown in FIG. 5 represents the center line, and the thick solid line represents the boundary between the road surface and the road shoulder.
  • Reflectors such as reflectors and road signs are provided on the side of the road and on the center line to alert the driver. For this reason, when the headlamp 110 is turned on, as shown in FIG. 5A, the light reflected by these reflectors may appear as a bright spot in the front image.
  • the headlamp of the oncoming vehicle is also reflected in the front image as a bright spot.
  • the bright spots a to j are bright spots corresponding to the reflectors
  • the two bright spots k1 and k2 are bright spot pairs corresponding to the headlamps of the oncoming vehicle. It is.
  • the illumination mode of the headlamp 110 may be switched from the view priority mode to the view restriction mode, and the driver's view may be restricted.
  • the bright spots (a to j) corresponding to the reflecting object are not captured. Some of the bright spots are not mistakenly recognized as bright spots corresponding to the headlights of the oncoming vehicle. For this reason, although the oncoming vehicle does not actually exist, the illumination mode of the headlamp 110 does not switch from the view priority mode to the view restriction mode. Therefore, it is possible to avoid the driver's view being limited.
  • the on-vehicle illumination device 100 of the present embodiment is also mounted in the oncoming vehicle and the headlamp is turned off only for a short time.
  • the headlight 110 of the vehicle 1 is turned off and a front image is acquired
  • the headlight of the oncoming vehicle happens to be turned off
  • the headlight of the oncoming vehicle is erroneously recognized as a reflector.
  • the turn-off time is short, during the turn-off time of the headlight of the oncoming vehicle, the headlight 110 of the vehicle 1 happens to be turned off and the front camera 120 acquires the front image. It can hardly happen. Therefore, actually, even when the on-vehicle lighting device 100 of this embodiment is mounted on an oncoming vehicle, the headlamp of the oncoming vehicle is not erroneously recognized as a reflector.
  • the brightness indicated in the image data is compared with a predetermined threshold value, and a region with a high brightness is extracted as the bright spot. For this reason, even if the headlamp 110 is not completely turned off, if the intensity of the light from the headlamp 110 is reduced to such an extent that the reflected object is not extracted as a bright spot by the image processing module 132, The description applies as well. Accordingly, similar effects can be obtained even in this way.
  • FIG. 6 shows a state where the in-vehicle lighting device 100 according to the first modified example switches between the view priority mode and the view restriction mode.
  • a front image is acquired by the front camera 120 every time a certain interval time (for example, 20 msec interval) elapses.
  • a certain interval time for example, 20 msec interval
  • a turn-off signal is always output thereafter, and the front image that is turned off is acquired. Reflected objects provided on the side of the road or the like do not appear in the front image being extinguished thus obtained (see FIG. 5B).
  • the visibility restriction mode is set, and no oncoming vehicle is detected in the front image being turned off.
  • the view priority mode may be set.
  • the illumination control process can be simplified.
  • the turn-off signal is output and the headlamp 110 is turned off. What is necessary is just to acquire the inside front image. Therefore, in the above-described embodiment, it is possible to reduce the control load on the headlamp control unit 112 and the front camera 120.
  • FIG. 7 shows a flowchart of illumination control processing performed by the in-vehicle illumination device 100 according to the second modification.
  • This lighting control process is automatically executed by the control device 130 of the in-vehicle lighting device 100 when the headlamp 110 is turned on by the driver of the vehicle 1, similarly to the lighting control processing of the above-described embodiment.
  • the headlamp 110 is first set to the view priority mode (step S200).
  • information related to the traveling state of the vehicle 1 is acquired (step S202).
  • the traveling state information can include whether the vehicle 1 is accelerating or decelerating (that is, whether the accelerator pedal is depressed), the steering direction, the vehicle speed, and the like.
  • Such traveling state information can be acquired from an in-vehicle computer that controls the traveling state of the vehicle 1.
  • the control module 134 acquires travel state information. Therefore, the control module 134 corresponds to “information acquisition means”.
  • the control apparatus 130 sets the interval time corresponding to the acquired driving state to the timer built in itself (step S204).
  • the interval time corresponding to the running state is stored in advance in a ROM (not shown) of the control device 130.
  • step S206 judges whether the set interval time passed.
  • step S206: NO the control device 130 is in a standby state while repeating the same determination.
  • step S206: YES the control device 130 acquires a front image while keeping the headlamp 110 lit.
  • step S210 the control device 130 outputs a turn-off signal to the headlamp control unit 112 (step S210).
  • step S212 the control device 130 outputs a trigger signal to the front camera 120 to acquire a front image being turned off
  • the control device 130 determines whether or not a bright spot (a bright spot pair) corresponding to the headlight of the oncoming vehicle exists in the acquired forward image (step S214). As a result, when there is a bright spot of the oncoming vehicle (step S214: YES), the control device 130 determines that there is an oncoming vehicle. Therefore, the control device 130 sets the headlamp 110 to the view restriction mode so as not to bother the driver of the oncoming vehicle (step S216). On the other hand, when there is no bright point of the oncoming vehicle in the front image being turned off (step S214: NO), the control device 130 determines that there is no oncoming vehicle. Therefore, the control device 130 determines whether or not the current illumination mode is the view restriction mode (step S218).
  • step S218 If the current illumination mode is the view restriction mode (step S218: YES), the control device 130 sets the headlamp 110 to the view priority mode (step S220). Then, the control returns to step S202, and the control device 130 repeats the series of processes described above. On the other hand, when the current illumination mode is the visibility priority mode (step S218: NO), the control immediately returns to step S202, and the control device 130 repeats the series of processes described above.
  • the headlamp 110 is periodically turned off while the headlight 110 is turned on by the driver of the vehicle 1, and the cycle in which the headlight is turned off corresponds to the traveling state of the vehicle 1. .
  • the period in which the headlamp is turned off is detected to determine whether the oncoming vehicle is accelerating or decelerating, or turning right. You can get information on whether you are going to turn or turn left. As a result, it is possible to predict the movement of the oncoming vehicle and realize safe driving.
  • the interval time is changed according to the traveling state of the vehicle 1.
  • the interval time may be changed according to information such as the vehicle type and model in addition to the driving state or instead of the driving state.
  • the headlamp 110 is turned off for a short time at a constant cycle.
  • the rear lamp may be turned off at a cycle according to the traveling state.
  • the preceding vehicle is equipped with the in-vehicle lighting device 100, the period in which the rear lamp is turned off is detected, so that information on the traveling state of the preceding vehicle is obtained and safe traveling is realized. It becomes possible to do. For example, if it can be detected that the accelerator pedal of the preceding vehicle is not depressed, it can be predicted that the brake pedal is likely to be depressed next. Therefore, even if the preceding vehicle suddenly stops, it is possible to predict that the brake pedal will be stepped on for an instant, so the possibility of a rear-end collision can be greatly reduced.
  • SYMBOLS 1 Vehicle 100 ... In-vehicle illumination device, 110 ... headlights, 112 ... headlight control unit, 120 ... Front camera, 130 ... control device, 132: Image processing module, 134 ... Control module

Abstract

Dans la présente invention, lorsqu'un phare éclaire la direction de progression, l'intensité de la lumière dudit phare est atténuée (ou amenée à zéro) jusqu'à ne pas dépasser une intensité prédéfinie au cours d'une durée d'atténuation prédéfinie. Une image (image lors de l'atténuation) de la direction de progression du véhicule est alors acquise. Dans l'image lors de l'atténuation, les objets réfléchissants tels que ceux qui sont situés sur le bord de la route semblent sombres, et les phares du trafic venant en sens inverse semblent brillants. Il est par conséquent possible de déterminer facilement et avec précision la présence/l'absence de trafic venant en sens inverse. Ainsi, lorsque la détermination indique qu'il y a un trafic venant en sens inverse dans l'image lors de l'atténuation, la portée de l'éclairage des phares est définie de façon à correspondre à une seconde portée d'éclairage qui est plus étroite qu'une première portée d'éclairage.
PCT/JP2013/057022 2012-03-14 2013-03-13 Dispositif d'éclairage embarqué WO2013137324A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012-057311 2012-03-14
JP2012057311A JP2013189105A (ja) 2012-03-14 2012-03-14 車載用照明装置

Publications (1)

Publication Number Publication Date
WO2013137324A1 true WO2013137324A1 (fr) 2013-09-19

Family

ID=49161229

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2013/057022 WO2013137324A1 (fr) 2012-03-14 2013-03-13 Dispositif d'éclairage embarqué

Country Status (2)

Country Link
JP (1) JP2013189105A (fr)
WO (1) WO2013137324A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109720268A (zh) * 2017-10-30 2019-05-07 深圳市绎立锐光科技开发有限公司 车灯调节控制系统及控制方法、汽车
US20220363185A1 (en) * 2021-05-12 2022-11-17 Volvo Truck Corporation System and method for controlling intensity of a vehicle light

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015009570A (ja) * 2013-06-26 2015-01-19 富士重工業株式会社 前照灯制御装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007076429A (ja) * 2005-09-13 2007-03-29 Koito Mfg Co Ltd ヘッドランプシステム
JP2008197965A (ja) * 2007-02-14 2008-08-28 Denso Corp 車両間情報伝達システム
JP2010235045A (ja) * 2009-03-31 2010-10-21 Toyota Central R&D Labs Inc 照明制御装置及びプログラム

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007076429A (ja) * 2005-09-13 2007-03-29 Koito Mfg Co Ltd ヘッドランプシステム
JP2008197965A (ja) * 2007-02-14 2008-08-28 Denso Corp 車両間情報伝達システム
JP2010235045A (ja) * 2009-03-31 2010-10-21 Toyota Central R&D Labs Inc 照明制御装置及びプログラム

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109720268A (zh) * 2017-10-30 2019-05-07 深圳市绎立锐光科技开发有限公司 车灯调节控制系统及控制方法、汽车
US20220363185A1 (en) * 2021-05-12 2022-11-17 Volvo Truck Corporation System and method for controlling intensity of a vehicle light

Also Published As

Publication number Publication date
JP2013189105A (ja) 2013-09-26

Similar Documents

Publication Publication Date Title
JP4240110B2 (ja) 車両用照明装置、車両用照明制御方法、及び車両用照明制御プログラム
JP4253271B2 (ja) 画像処理システム及び車両制御システム
US10618458B2 (en) Vehicle headlight control device
JP4538468B2 (ja) 画像処理装置，画像処理方法、及び画像処理システム
JP2015009570A (ja) 前照灯制御装置
JP5077184B2 (ja) 車両検出装置
JPWO2012140752A1 (ja) 車載周辺物認識装置及びこれを用いる運転支援装置
JP2013010491A (ja) 車両のランプ制御装置
JP2013098169A (ja) スポットランプユニット、このスポットランプユニットが備えられたヘッドライトシステム、およびこれを利用した前方照明方法
CN110121444B (zh) 照明装置
JP2007030739A (ja) 車載灯具制御装置および車載灯具制御方法
JP2008195335A (ja) ランプ点灯制御システム及びランプ点灯制御方法
JP5542501B2 (ja) 車両ランプシステム
US7295104B2 (en) Lighting apparatus
JP2009012553A (ja) 車両用灯具
WO2013137324A1 (fr) Dispositif d'éclairage embarqué
US20230415637A1 (en) Light distribution control device, vehicular lamp system, and light distribution control method
JP7021134B2 (ja) 車両周辺モニタ装置
JPH0217372B2 (fr)
JP6567175B2 (ja) 車載用前照灯及び車載用前照灯システム
JP2015033954A (ja) 車両用前照灯の点灯制御装置、車両用前照灯システム
KR20090055768A (ko) 차량용 헤드라이트의 자동전환 제어시스템 및 그 방법
KR20070104738A (ko) 주변 밝기 및 차간 거리에 따른 전조등 제어 장치 및 방법
WO2024018953A1 (fr) Système de tracé de route
JP2019108101A (ja) 車両の制御装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13760745

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13760745

Country of ref document: EP

Kind code of ref document: A1