# US 2026/0097705 A1 · Vehicle light control system, non-transitory computer-readable storage media, and control method of vehicle light control system

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- Number: US 2026/0097705 A1
- Document ID: US20260097705A1
- Status: Published application
- Kind: A1
- Application number: 19/326,740
- Filed: 2025-09-12
- Published: 2026-04-09
- Earliest claimed: 2024-10-04
- Assignees: Toyota Jidosha Kabushiki Kaisha
- Applicants: Toyota Jidosha Kabushiki Kaisha
- Inventors: Takuya NOMURA
- Web page: https://patentgrep.com/patent/US20260097705A1

## CPC

- B60Q 1/143: {combined with another condition, e.g. using vehicle recognition from camera images or activation of wipers}
- B60Q 1/085: {due to special conditions, e.g. adverse weather, type of road, badly illuminated road signs or potential dangers (B60Q1/10, B60Q1/12, B60Q1/1423 take precedence)}
- G06V 10/141: Control of illumination
- H05B 47/125: by using cameras
- B60Q 2300/45: Special conditions, e.g. pedestrians, road signs or potential dangers
- G06V 20/58: Recognition of moving objects or obstacles, e.g. vehicles or pedestrians; Recognition of traffic objects, e.g. traffic signs, traffic lights or roads
- B60Q: ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- G06V: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL

## Abstract

A vehicle light control system that controls irradiation of light by a lighting device of a vehicle to an irradiation control target around the vehicle, the system comprising: a camera that captures an image in an irradiation direction of the lighting device; an object detection unit that detects the irradiation control target from a captured image of the camera; a reliability calculation unit that calculates a reliability regarding detection of the irradiation control target detected by the object detection unit, based on the captured image of the camera; and a lighting device controller that controls irradiation of light from the lighting device to the irradiation control target, wherein the lighting device controller adjusts a light amount of the lighting device for the irradiation control target based on the reliability.

## Claims

### Claim 1

A vehicle light control system that controls irradiation of light by a lighting device of a vehicle to an irradiation control target around the vehicle, the system comprising:
a camera that captures an image in an irradiation direction of the lighting device;
an object detection unit that detects the irradiation control target from the captured image of the camera;
a reliability calculation unit that calculates a reliability regarding detection of the irradiation control target detected by the object detection unit, based on the captured image of the camera; and
a lighting device controller that controls irradiation of light from the lighting device to the irradiation control target,
wherein the lighting device controller adjusts a light amount of the lighting device for the irradiation control target based on the reliability.

### Claim 2 (depends on 1)

The vehicle light control system according to claim 1,
Wherein the irradiation control target is a pedestrian or a bicycle, and the lighting device controller performs dimming control to suppress glare of the irradiation control target.

### Claim 3 (depends on 2)

The vehicle light control system according to claim 2, wherein the lighting device controller increases the light amount of the lighting device for the irradiation control target when the reliability of the irradiation control target during the dimming control becomes less than a light increase start threshold value, or when an amount of decrease in the reliability of the irradiation control target during the dimming control with respect to an initial reliability, which is the reliability at an initial detection of the irradiation control target, becomes equal to or greater than a second light increase start threshold value.

### Claim 4 (depends on 2)

The vehicle light control system according to claim 2, wherein the lighting device controller reduces an amount of decrease in the light amount over time in the dimming control when the reliability of the irradiation control target during the dimming control becomes less than a mitigation start threshold value, or when an amount of decrease in the reliability of the irradiation control target during the dimming control with respect to an initial reliability, which is the reliability at an initial detection of the irradiation control target, becomes equal to or greater than a second mitigation start threshold value.

### Claim 5 (depends on 2)

The vehicle light control system according to claim 2, wherein the lighting device controller increases the light amount of the lighting device for the irradiation control target when an amount of decrease in the currently calculated reliability with respect to the previously calculated reliability becomes equal to or greater than a sudden decrease threshold value.

### Claim 6 (depends on 3)

The vehicle light control system according to claim 3, wherein the lighting device controller increases the light amount of the lighting device for the irradiation control target when an amount of decrease in the currently calculated reliability with respect to the previously calculated reliability becomes equal to or greater than a sudden decrease threshold value.

### Claim 7

A non-transitory computer-readable recording medium storing a program that causes a computer of a vehicle to operate to control irradiation of light by a lighting device of the vehicle to an irradiation control target around the vehicle, the program causing the computer to operate as:
an object detection unit that detects the irradiation control target from a captured image of a camera that captures an image in an irradiation direction of the lighting device;
a reliability calculation unit that calculates a reliability regarding detection of the irradiation control target detected by the object detection unit, based on the captured image of the camera; and
a lighting device controller that controls irradiation of light from the lighting device to the irradiation control target,
wherein the program causes the lighting device controller to adjust a light amount of the lighting device for the irradiation control target based on the reliability.

### Claim 8

A control method of a vehicle light control system that controls irradiation of light by a lighting device of a vehicle to an irradiation control target around the vehicle, the method comprising:
detecting the irradiation control target from a captured image of a camera that captures an image in an irradiation direction of the lighting device;
calculating a reliability regarding detection of the irradiation control target based on the captured image of the camera; and
adjusting a light amount of the lighting device for the irradiation control target based on the reliability.
