JP2024005561A - vehicle lighting system - Google Patents

Abstract

To provide a vehicle lighting system that is able to clearly photograph an object existing in a peripheral area of an own vehicle in a dark place.SOLUTION: A vehicle lighting system 1 includes an information output device that outputs object information on an object OB around an own vehicle, and a control device that controls a lighting state of each of a plurality of lighting devices provided in the own vehicle. When it is determined based on the object information output by the information output device that an illuminance B around the own vehicle is equal to or less than a threshold Bth and there is a possibility that the own vehicle may collide with the object OB around the own vehicle, the control device executes lighting control for controlling the lighting state of each lighting device so as to increase the illuminance in a direction in which the object OB exists.SELECTED DRAWING: Figure 4

Description

The present invention relates to a vehicle lighting system that controls the lighting state of a lighting device of a vehicle.

2. Description of the Related Art A recording device (drive recorder) that is mounted on a vehicle and photographs and records targets existing in the surrounding area of the vehicle is known (see, for example, Patent Document 1 below). This recording device includes an imaging device and a storage device. The imaging device is oriented in a predetermined direction (for example, in front of the own vehicle). The imaging device generates image data representing an image within an angle of view (a region that can be photographed) at a predetermined frame rate, and transmits the image data to a storage device. The storage device converts the image data acquired from the imaging device into data (video data) compliant with a predetermined video data format, and writes the converted data into a flash memory (SD card).

JP2009-290462A

The recording device described above includes a light projecting device (a dedicated lamp for photographing) that emits light within the field of view of the imaging device in a dark place (at night, inside a tunnel, etc.). However, even if this projector is used, the illuminance is still insufficient, so it may not be possible to clearly photograph a target within the field of view of the imaging device.

One of the objects of the present invention is to provide a vehicle lighting system that makes it possible to clearly photograph targets existing in the surrounding area of the own vehicle in a dark place.

In order to solve the above problems, the vehicle lighting system (1) of the present invention includes:
an information output device (20) that outputs target information regarding targets (OB) around the own vehicle (V);
a control device (10) that controls the lighting state of a plurality of lighting devices installed in the host vehicle;
Equipped with
The control device includes:
Based on the target object information output by the information output device, the illuminance (B) around the host vehicle is below a threshold value (Bth), and there is a possibility that the host vehicle will collide with the target object around the host vehicle. If it is determined that there is a target object, performing lighting control to control the lighting state of each lighting device so that the illuminance in the direction in which the target object is present is increased;
It is configured as follows.

According to the present invention, when there is a possibility of a collision between the own vehicle and a target object in a dark place, the headlamp of the own vehicle, the turn signal lamp, The lighting state of lighting devices such as back lamps is controlled. Thereby, the recording device of the host vehicle can clearly photograph the target object. Further, as described above, the conventional recording device is equipped with a lamp dedicated to photography, but according to the present invention, there is no need to provide such a lamp dedicated to photography.

In a vehicle lighting system according to one aspect of the present invention,
One or more of the lighting devices for increasing the illuminance of the divided area is assigned in advance to each divided area (A1, A2, ..., A8) that divides the entire surrounding area of the host vehicle,
When executing the light control, the control device turns on a light device that is turned off among the one or more light devices assigned to a region including the target object.

In this embodiment, a lighting device is assigned in advance to each segmented area around the vehicle. When the control device recognizes the area where the target exists, it turns on the lighting devices (among them the lighting devices that are turned off) assigned to that area. According to this, the lighting device to be lit can be easily determined.

In a vehicle lighting system according to another aspect of the present invention,
The information output device is configured to output the target object information, environmental information regarding the surrounding environment of the own vehicle, driving information regarding the running state of the own vehicle, and operation information regarding the operating mode of the operator provided on the own vehicle. is,
The control device includes:
Based on a plurality of pieces of information acquired from the information output device, it is determined whether there is a possibility that the host vehicle will collide with a target object around the host vehicle.

In the vehicle lighting system according to this aspect, whether there is a possibility of a collision is determined based on a plurality of pieces of information. Therefore, the determination result is more accurate than when determining whether there is a possibility of collision based on only one piece of information.

In a vehicle lighting system according to another aspect of the present invention,
The plurality of lighting devices include a headlamp, a brake lamp, a turn signal lamp, and a back lamp provided in the own vehicle,
Each lamp is respectively assigned to the segmented area containing the area to be illuminated.

According to the vehicle lighting system according to this aspect, the illuminance of each segmented area can be increased using the headlamp, brake lamp, turn signal lamp, and back lamp.

In a vehicle lighting system according to another aspect of the present invention,
After the lighting device is turned on, when the own vehicle and the target object collide, or when there is no possibility of a collision between the own vehicle and the target object, the turned on lighting device is turned off.

According to this, in the event of a collision between the own vehicle and a target object, or if there is no longer a possibility of a collision between the own vehicle and the target object, the driver manually turns off the lighting device that was turned on for photographing. There's no need to. Furthermore, it is possible to reduce the annoyance (dazzle) for traffic participants such as other vehicles and pedestrians. Furthermore, compared to the case where the lighting device continues to be lit after a collision, power consumption can be suppressed.

FIG. 1 is a block diagram of a vehicle lighting system according to an embodiment of the present invention. FIG. 2 is a plan view showing an example in which the surrounding area of the host vehicle is divided into eight areas. FIG. 3 is a database showing the correspondence between each region shown in FIG. 2 and the lighting device. FIG. 4 is a flowchart of a computer program for executing photography lamp control.

As shown in FIG. 1, a vehicle lighting system 1 according to an embodiment of the present invention includes a vehicle V (hereinafter sometimes referred to as "host vehicle") that includes a lighting device L and a recording device R. ).

As shown in FIG. 2, the lighting device L includes a plurality of lighting devices (for example, headlamps L1a, L1b, brake lamps (stop lamps) L2a, L2b, turn signal lamps L3a, L3b, L3c, L3d, back lamp L4). )including. The headlamp L1a includes a passing lamp LOa and a running lamp HIa, and the headlamp L1b includes a passing lamp LOb and a running lamp HIb.

Referring to FIG. 1 again, the recording device R includes imaging devices R1a and R1b and a storage device R2. The imaging devices R1a and R1b are, for example, digital cameras incorporating a CCD (charge coupled device) or a CIS (CMOS image sensor) imaging element. The imaging devices R1a and R1b are directed toward the front and rear of the own vehicle, respectively. The imaging devices R1a and R1b are equipped with ultra-wide-angle lenses. Therefore, by using both imaging devices, images of the surroundings of the host vehicle in all directions can be obtained. The imaging devices R1a and R1b transmit image data obtained by photographing targets existing in the surrounding area of the vehicle at a predetermined frame rate to the storage device R2.

The storage device R2 includes an image conversion device, a flash memory (SD card), and the like. The image conversion device converts the image data acquired from the imaging devices R1a and R1b into video data conforming to a predetermined video format, and writes the data into the flash memory. Note that the storage device R2 may acquire image data from a camera 23 of the vehicle lighting system 1, which will be described later, convert the image data into moving image data, and write the image data into the flash memory.

(composition)
The vehicle lighting system 1 includes a lamp ECU 10 and an on-vehicle sensor 20, as shown in FIG.

The lamp ECU 10 includes a microcomputer equipped with a CPU 10a, a ROM 10b, a RAM 10c, and the like. Note that in this specification, "ECU" means an electronic control unit, and includes a microcomputer equipped with a CPU, ROM, RAM, and the like. The CPU implements various functions by executing instructions stored in the ROM. In addition, the lamp ECU 10 includes a timer 10d that measures time.

The lamp ECU 10 is connected to other ECUs mounted on the own vehicle via a CAN (Controller Area Network) so as to be able to mutually transmit and receive information.

The vehicle-mounted sensor 20 includes a sensor that acquires information regarding targets existing around the own vehicle (target information). Specifically, the in-vehicle sensor 20 includes a radar sensor 21 and an ultrasonic sensor that acquire information regarding moving objects such as automobiles (other vehicles), pedestrians, and bicycles, as well as fixed objects such as white lines on the road, guardrails, and traffic lights. 22 and a camera 23.

The radar sensor 21 includes a radar transmitting/receiving section and a signal processing section (not shown). The radar transmitter/receiver unit emits millimeter wave band radio waves (hereinafter referred to as "millimeter waves") to the surrounding area of the own vehicle, and the millimeter waves reflected by three-dimensional objects existing within the radiation range (i.e., reflected wave). The signal processing unit detects a three-dimensional object relative to the vehicle V based on the phase difference between the transmitted millimeter wave and the received reflected wave, the attenuation level of the reflected wave, the time from transmitting the millimeter wave to receiving the reflected wave, etc. The relative position (direction and distance) of is calculated, and the calculation result (relative position information) is transmitted to the lamp ECU 10.

The ultrasonic sensor 22 intermittently transmits ultrasonic waves to the surrounding area of the host vehicle and receives ultrasonic waves (reflected waves) reflected by three-dimensional objects. The ultrasonic sensor 22 calculates the relative position (direction and distance) of the three-dimensional object with respect to the vehicle V based on the time required from the transmission of the ultrasonic wave to the reception of the reflected wave, and calculates the calculation result (relative position information). is transmitted to the lamp ECU 10.

Camera 23 includes a plurality of imaging devices and image analysis devices. The imaging device is, for example, a digital camera incorporating a CCD (charge coupled device) or a CIS (CMOS image sensor) imaging element. The imaging device is disposed, for example, on the top of the front windshield glass, the rear panel, the door mirror, etc., and is directed forward, backward, and sideways, respectively. Each imaging device outputs image data obtained by photographing a target existing in a surrounding area of the vehicle at a predetermined frame rate to an image analysis device. Each imaging device is equipped with a wide-angle lens. Therefore, the image analysis device can obtain omnidirectional images around the own vehicle by combining images obtained from each imaging device. The image analysis device analyzes the acquired image data and acquires information regarding targets existing around the host vehicle from the image. The image analysis device calculates, for example, the relative position (direction and distance) of the three-dimensional object with respect to the own vehicle, and transmits the calculation result (relative position information) to the lamp ECU 10.

Furthermore, the vehicle-mounted sensor 20 includes a sensor that acquires information regarding the environment around the own vehicle (environmental information). Specifically, the vehicle-mounted sensor 20 includes an illuminance sensor 24. The illuminance sensor 24 detects the illuminance B around the own vehicle and transmits the detection result (illuminance information) to the lamp ECU 10.

Further, the on-vehicle sensor 20 includes a sensor that acquires and outputs information regarding the running state (speed, acceleration) of the vehicle V and information regarding the operation mode of the operator provided on the vehicle V (operation information).

Specifically, the on-vehicle sensor 20 includes a speed sensor 25, an acceleration sensor 26, an accelerator pedal sensor 27, a brake pedal sensor 28, a shift lever sensor 29, a steering sensor 2a, and a lamp switch 2b.

The speed sensor 25 includes a wheel speed sensor that generates one pulse signal (wheel pulse signal) every time the wheels of the own vehicle rotate by a predetermined angle. The speed sensor 25 measures the number of pulses per unit time of the wheel pulse signal transmitted from the wheel speed sensor, calculates the rotational speed (wheel speed) of each wheel based on the measured number of pulses, and calculates the rotational speed (wheel speed) of each wheel. The speed vs (actual vehicle speed) of the own vehicle is calculated based on the wheel speed. The speed sensor 25 transmits speed information representing speed vs to the lamp ECU 10.

The acceleration sensor 26 detects acceleration G of the vehicle V (for example, acceleration in the vehicle width direction, acceleration in the longitudinal direction, etc. of the vehicle V). The acceleration sensor 26 transmits acceleration information representing acceleration G to the lamp ECU 10.

The accelerator pedal sensor 27 detects the depression depth AD of the accelerator pedal (not shown) of the host vehicle. The accelerator pedal sensor 27 transmits accelerator pedal information representing the depression depth AD of the accelerator pedal to the lamp ECU 10.

The brake pedal sensor 28 detects the depression depth BD of the brake pedal (not shown) of the host vehicle. The brake pedal sensor 28 transmits brake pedal information representing the depression depth BD to the lamp ECU 10.

The shift lever sensor 29 detects the position (shift lever position SP) of a shift lever (not shown) of the host vehicle. The shift lever sensor 29 transmits shift position information representing the shift lever position SP to the lamp ECU 10.

The steering sensor 2a detects a steering angle (also referred to as a steering angle or steering angle) θ of a steering wheel (not shown). The steering sensor 2a transmits steering information representing the detected steering angle θ to the lamp ECU 10.

The lamp switch 2b includes a switch device (hereinafter referred to as a "headlamp switch") that is incorporated into an operator operated by the driver to turn on or off the headlamps L1a and L1b.

In addition, the lamp switch 2b is set to a low beam state in which the passing lamps LOa and LOb are turned on and the driving lamps HIa and HIb are turned off, and a low beam state in which the passing lamps LOa and LOb are turned off and the driving lamps HIa and HIb are turned off. It includes a switch device (hereinafter referred to as a "beam changeover switch") that is incorporated into an operator operated by a driver when switching between a high beam state in which the beam is turned on and a high beam state in which the beam is turned on.

The lamp switch 2b is a switch device (hereinafter referred to as a "right turn switch" or "left turn switch") that is incorporated into an operator operated by the driver when turning the own vehicle (turning left or right) or changing lanes. ).

The lamp ECU 10 sequentially detects (monitors) the on/off states of these switches.

<Normal light control>
The lamp ECU 10 executes a control similar to the light control of a lighting device in a well-known vehicle (hereinafter referred to as "normal light control"). That is, the lamp ECU 10 controls the power supply state (lighting control the lighting status of the device.

For example, when the headlamp switch is in the on state, the lamp ECU 10 turns on the headlamps L1a and L1b. In this case, when the beam changeover switch is in the off state, the lamp ECU 10 turns on the passing lamps LOa and LOb, and turns off the running lamps HIa and HIb (low beam state). On the other hand, when the beam changeover switch is in the on state, the lamp ECU 10 turns off the passing lamps LOa and LOb, and turns on the driving lamps HIa and HIb (high beam state). Further, when the depression depth BD is greater than "0", the lamp ECU 10 turns on the brake lamps L2a and L2b. Further, when the shift lever position SP is "reverse", the lamp ECU 10 turns on the back lamp L4.

Further, when the left turn switch is in the on state, the lamp ECU 10 blinks the turn signal lamps L3a and L3c. On the other hand, when the right turn switch is in the on state, the lamp ECU 10 blinks the turn signal lamps L3b and L3d.

<Photography light control>
The lamp ECU 10 performs the following photographing light control (light control for clearly photographing a target in a dark place) while executing the above-mentioned normal light control. Specifically, the lamp ECU 10 sequentially acquires illuminance information from the illuminance sensor 24. Further, the lamp ECU 10 sequentially acquires relative position information from the radar sensor 21, the ultrasonic sensor 22, and the camera 23. The lamp ECU 10 selects the target object OB closest to the own vehicle based on the relative position information, and determines whether the own vehicle and the target object OB will collide based on a change in the relative position between the own vehicle and the target object OB. The time required for collision (TTC) is sequentially calculated (predicted). If the predicted collision margin time TTC is equal to or less than the threshold value TTCth, the lamp ECU 10 determines that "there is a possibility that the host vehicle and the target object OB will collide."

In a situation where the illuminance B is below a predetermined threshold value Bth (a situation where there is a high possibility that the image obtained by the imaging device R1a and/or the imaging device R1b of the recording device R will become unclear), If it is determined that there is a possibility of a collision with the target OB, the lighting device constituting the lighting device L is A predetermined lighting device (lamp) is turned on (always lit).

Specifically, as shown in FIG. 2, for example, the surrounding area in a plan view of the own vehicle is divided into eight angular areas in the circumferential direction (front area A1, left front area A2, right front area A3, left The front area A4, the right area A5, the left rear area A6, the right rear area A7, and the rear area A8). As shown in FIG. 3, a lighting device to be lit is assigned to each of these areas. This database (assignment table) DB is stored in the ROM 10b. When determining that there is a possibility of a collision between the own vehicle and the target object OB, the lamp ECU 10 refers to the database DB and installs a lighting device (database) corresponding to the direction of the target object OB (area where the target object OB exists). Select the lighting devices marked with “〇” in the DB. Then, the lamp ECU 10 turns on (always lights) the off lighting devices among the selected lighting devices.

For example, when the target object OB exists in the front area A1, the lamp ECU 10 turns on the passing lamps LOa, LOb, the driving lamps HIa, HIb, and the turn signal lamps L3a, L3b. Further, for example, when the target object OB exists in the area A7, the lamp ECU 10 turns on the brake lamp L2b, the turn signal lamp L3d, and the back lamp L4.

However, the lamp ECU 10 maintains the lighting or blinking state of a lighting device that has already been turned on or blinking by normal lighting control. For example, when turning left at an intersection, the lamp ECU 10 blinks the turn signal lamps L3a and L3c under normal lighting control. In this situation, for example, if the target object OB exists in the left area A4 and the lamp ECU 10 determines that "there is a possibility of a collision between the own vehicle and the target object OB", the lamp ECU 10 outputs the turn signal lamp L3a. , L3c are not turned on (always lit), but their blinking state is maintained.

If the host vehicle and the target object OB collide after turning on one of the lighting devices in the photography lighting control, the lamp ECU 10 turns off the lighting device that was turned on in the photography lighting control.

Specifically, the lamp ECU 10 determines whether or not the own vehicle has collided with the target object OB based on speed information, acceleration information, accelerator pedal information, brake pedal information, steering information, etc. acquired from the on-vehicle sensor 20. judge. That is, the lamp ECU 10 determines whether the amount of change per unit time of any one or more of the physical quantities represented by these pieces of information exceeds a threshold, or when the pattern of change of these physical quantities resembles a predetermined pattern. etc., it is determined that the own vehicle and the target object OB have collided. In addition, the lamp ECU 10 is configured to connect the vehicle and the target when, for example, an airbag installed in the vehicle is deployed, or communication with other ECUs is interrupted (other ECUs fail). It is determined that there has been a collision with the OB. When the lamp ECU 10 determines that the host vehicle and the target object OB have collided, the lamp ECU 10 turns off the lighting device that was turned on in the photography lighting control.

In addition, the lamp ECU 10 lights up any of the lighting devices in the photography lighting control, and then when there is no possibility of a collision between the own vehicle and the target object OB (when the collision margin time TTC exceeds the threshold value TTCth). ), turns off the lighting device that was turned on during the photography lighting control.

Next, with reference to FIG. 4, the operation of the CPU 10a (hereinafter simply referred to as "CPU") of the lamp ECU 10 (program P1 for realizing the above-mentioned "photographing lamp control") will be specifically described. While the drive device (engine or drive motor) of the own vehicle is operating (when the ignition switch is in the on state), the CPU repeatedly executes the program P1 at a predetermined period.

(Program P1)
The CPU starts executing the program P1 from step 100 and proceeds to step 101.

When the CPU proceeds to step 101, the CPU acquires illuminance information from the illuminance sensor 24, and determines whether the current illuminance B is equal to or lower than the threshold value Bth based on the illuminance information. If the illuminance B is equal to or less than the threshold value Bth (101: Yes), the CPU proceeds to step 102. On the other hand, if the illuminance B exceeds the threshold value Bth (101: No), the CPU proceeds to step 108 and ends the program P1.

When the CPU proceeds to step 102, the CPU selects the target object OB closest to the host vehicle, and determines whether there is a possibility that the host vehicle and the target object OB will collide. Specifically, the CPU determines whether the collision margin time TTC for the target object OB is less than or equal to the threshold value TTCth. If the collision margin time TTC is less than or equal to the threshold value TTCth (102: Yes), the CPU proceeds to step 103. On the other hand, if the collision margin time TTC exceeds the threshold value TTCth, the CPU proceeds to step 108.

When the CPU proceeds to step 103, the CPU refers to the database DB and selects an extinguished lighting device from among the lighting devices corresponding to the target object OB. The CPU then proceeds to step 104.

When the CPU proceeds to step 104, the CPU lights up the lighting device selected in step 103 above. The CPU then proceeds to step 105.

Proceeding to step 105, the CPU determines whether or not the own vehicle and the target object OB have collided. If the own vehicle and the target object OB collide (105: Yes), the CPU proceeds to step 107. On the other hand, if the own vehicle and the target object OB have not collided (105: No), the CPU proceeds to step 106.

Proceeding to step 106, the CPU determines whether or not there is no longer a possibility of a collision between the own vehicle and the target object OB. Specifically, the CPU determines whether the collision time TTC for the target object OB exceeds the threshold TTCth. If the collision margin time TTC exceeds the threshold TTCth (106: Yes), the CPU proceeds to step 107. On the other hand, if the collision margin time TTC is less than or equal to the threshold value TTCth, the CPU returns to step 105.

When the CPU proceeds to step 107, the CPU turns off the lighting device that was turned on in step 104 above. The CPU then proceeds to step 108 and ends the program P1.

(effect)
According to the present embodiment, when there is a possibility of a collision between the own vehicle and the target object OB in a dark place, the headlamps L1a of the own vehicle, The lighting states of lighting devices such as L1b and brake lamps L2a and L2b are controlled. Thereby, the recording device R can clearly photograph the target object OB. Furthermore, as described above, the conventional recording device is equipped with a lamp dedicated to photography, but according to the present embodiment, there is no need to provide such a lamp dedicated to photography.

Further, in this embodiment, the lamp ECU 10 has a database DB that defines the correspondence between each area around the own vehicle and the lighting device. When the lamp ECU 10 recognizes the area where the target object OB is present, it refers to the database DB, selects the lighting device assigned to that area, and turns on the lighting device that is off. According to this, the lighting device to be lit can be easily determined.

In addition, if there is a collision between the own vehicle and the target object OB, or if there is no longer a possibility of a collision between the own vehicle and the target object OB, the driver can manually turn off the lighting device that was turned on for photographing. There's no need. Furthermore, it is possible to reduce the annoyance (dazzle) for traffic participants such as other vehicles and pedestrians. Furthermore, compared to the case where the lighting device continues to be lit after a collision, power consumption can be suppressed.

The present invention is not limited to the above-described embodiments, and various modifications can be adopted within the scope of the present invention, as described below.

<Modification 1>
The vehicle lighting system 1 may be mounted on a vehicle equipped with a road marking lamp as a lighting device. In this case, the lamp ECU 10 lights up the road surface drawing lamp in accordance with the depression depth AD, the steering angle θ, the on/off state of the left turn switch and the right turn switch, etc. in the normal light control, and controls the own vehicle. A figure representing the direction of travel is drawn (projected) on the road surface. Then, in the photographing light control, when the illuminance B is below the threshold value Bth and there is a possibility that the own vehicle and the target object OB will collide, the lamp ECU 10 corresponds to the area where the target object OB exists. Turn on the road marking lamps.

<Modification 2>
In the embodiment described above, the lamp ECU 10 lights up the lighting device in the photography lighting control, and then when the host vehicle collides with the target object OB, or when the possibility of collision between the host vehicle and the target object OB disappears. Then, the lighting device that was turned on is turned off. Instead, the lamp ECU 10 turns on the lighting device in the photography lighting control and starts measuring the elapsed time using the timer 10d, and when the measurement result reaches a predetermined value larger than the collision margin time TTC. , the light device may be turned off.

<Modification 3>
In the above embodiment, the peripheral area of the vehicle V is divided into eight angular areas, but the area may be further subdivided or may be simplified.

<Modification 4>
In the embodiment described above, in the photographing lamp control, the lamp ECU 10 selects the target object OB closest to the host vehicle. If there is a possibility of a collision between the own vehicle and the target object OB, the lamp ECU 10 refers to the database DB and selects a lighting device corresponding to the area where the target object OB exists. Alternatively, the lamp ECU 10 may select a plurality of targets that are likely to collide with the host vehicle from among targets existing around the host vehicle. In this case, the lamp ECU 10 refers to the database DB, selects a lighting device corresponding to the area where the plurality of selected targets are present, and turns on the lighting device that is off.

<Modification 5>
The vehicle lighting system 1 may include a communication device that transmits and receives information to and from a server computer, other vehicles, etc. via a wireless communication line, as one of the information output devices of the present invention. The lamp ECU 10 may acquire target object information and/or environmental information from the server computer and other vehicles via the communication device.

<Modification 6>
In the embodiment described above, the lamp ECU 10 uses the illuminance sensor 24 to acquire the current illuminance B, but the lamp ECU 10 may acquire the current illuminance B based on an image obtained by the camera 23.

1...Vehicle lighting system, 10...Lamp ECU, 20...Vehicle sensor, B...Illuminance, L...Lighting device, OB...Target, R1a, R1b...Imaging device, TTC...Collision margin time

Claims (5)

an information output device that outputs target information regarding targets around the own vehicle;
a control device that controls each lighting state of a plurality of lighting devices installed in the host vehicle;
A vehicle lighting system comprising:
The control device includes:
When it is determined that the illuminance around the host vehicle is below a threshold value and that there is a possibility that the host vehicle will collide with the target object around the host vehicle, based on the target information output by the information output device. , executing lighting control to control the lighting state of each lighting device so that the illumination intensity in the direction where the target object is present is increased;
A vehicle lighting system configured as follows. The vehicle lighting system according to claim 1,
One or more of the lighting devices for increasing the illuminance of the divided area are allocated in advance to each divided area obtained by dividing the entire surrounding area of the host vehicle,
When the control device executes the light control, the control device controls a vehicular light that turns on a light device that is turned off among the one or more light devices assigned to the area including the target object. system. The vehicle lighting system according to claim 2,
The information output device is configured to output the target object information, environmental information regarding the surrounding environment of the own vehicle, driving information regarding the running state of the own vehicle, and operation information regarding the operating mode of the operator provided on the own vehicle. is,
The control device includes:
A vehicle lighting system that determines whether there is a possibility that the vehicle will collide with a target object around the vehicle based on a plurality of pieces of information obtained from the information output device. The vehicle lighting system according to claim 3,
The plurality of lighting devices include a headlamp, a brake lamp, a turn signal lamp, and a back lamp provided in the own vehicle,
A lighting system for a vehicle, wherein each lamp is respectively assigned to the segmented area including the area to be illuminated. The vehicle lighting system according to any one of claims 1 to 4,
The control device is configured to control the control device in the case where the host vehicle collides with the target object after turning on the light device in the light control, or when the possibility of a collision between the host vehicle and the target object disappears. , a vehicle lighting system that turns off the lit lighting device;

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