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US 12,187,186 B2Granted
Vehicle lamp system
AssigneeKoito Manufacturing Co., Ltd.
InventorsYuichi Watano, Takao Muramatsu
Life of this patent
Estimating the term…
Abstract
A vehicle lamp system includes an illuminance variable lamp, a lamp-mounted camera, and a lamp control unit. After acquiring position information of a low accuracy region from a vehicle control unit, the lamp control unit acquires illuminance of the low accuracy region by referring to information acquired by the lamp-mounted camera, controls the illuminance variable lamp so as to increase the illuminance of the low accuracy region if the illuminance of the low accuracy region is less than a threshold, and/or controls the illuminance variable lamp so as to decrease the illuminance of the low accuracy region if the illuminance of the low accuracy region is equal to or greater than the threshold.
Claims5
A vehicle lamp system comprising:
- an illuminance variable lamp capable of performing adjustment such that illuminance of any region of an angle of view of a vehicle camera mounted on a vehicle is different from illuminance of another region;
- an illuminance fixing lamp capable of emitting light with a specific illuminance toward a region including the angle of view of the vehicle camera;
- and
- a lamp controller configured to control the illuminance variable lamp and the illuminance fixing lamp,
- wherein the lamp controller is configured to
- after acquiring, from a vehicle controller configured to control the vehicle, position information and illuminance of a low accuracy region where a recognition accuracy of the angle of view of the vehicle camera is equal to or less than a predetermined value,
- determine whether the illuminance of the low accuracy region is less than a threshold,
- control the illuminance variable lamp so as to increase the illuminance of the low accuracy region if the illuminance of the low accuracy region is less than the threshold, and/or
- control the illuminance variable lamp so as to decrease the illuminance of the low accuracy region if the illuminance of the low accuracy region is equal to or greater than the threshold,
- wherein the illuminance of the low accuracy region is an average value of luminance of pixels belonging to the low accuracy region among the pixels of the vehicle camera, and
- wherein the lamp controller is further configured to:
- determine whether the illuminance fixing lamp is in a lighting state,
- based on a determination that the illuminance of the low accuracy region is less than the threshold and the illuminance fixing lamp is in the lighting state, control the illuminance variable lamp so as to increase the illuminance of the low accuracy region,
- based on a determination that the illuminance of the low accuracy region is less than the threshold and the illuminance fixing lamp is not in the lighting state, turn on the illuminance fixing lamp and control the illuminance variable lamp so as to increase the illuminance of the low accuracy region,
- based on a determination that the illuminance of the low accuracy region is equal to or greater than the threshold and the illuminance fixing lamp is not in the lighting state, control the illuminance variable lamp so as to decrease the illuminance of the low accuracy region, and
- based on a determination that the illuminance of the low accuracy region is equal to or greater than the threshold and the illuminance fixing lamp is in the lighting state, turn off the illuminance fixing lamp and control the illuminance variable lamp so as to decrease the illuminance of the low accuracy region.
13 more elements
A vehicle lamp system comprising:
- an illuminance variable lamp capable of performing adjustment such that illuminance of any region of an angle of view of a vehicle camera mounted on a vehicle is different from illuminance of another region;
- and
- a lamp controller configured to control the illuminance variable lamp,
- wherein after acquiring, from a vehicle controller configured to control the vehicle, position information of a low accuracy region where a recognition accuracy of the angle of view of the vehicle camera is equal to or less than a predetermined value, and first recognition accuracy which is the recognition accuracy of the low accuracy region at that time, the lamp controller is configured to, without acquiring an illuminance of the low accuracy region, execute the following (1) and/or (2):
- (1) controlling the illuminance variable lamp so as to increase the illuminance of the low accuracy region, and acquiring, from the vehicle controller, second recognition accuracy which is the recognition accuracy of the low accuracy region in this state,
- in a case where the first recognition accuracy is higher than the second recognition accuracy, controlling the illuminance variable lamp so as to decrease the illuminance of the low accuracy region with respect to illuminance when the first recognition accuracy is acquired, and
- in a case where the second recognition accuracy is higher than the first recognition accuracy, controlling the illuminance variable lamp so as to increase the illuminance of the low accuracy region with respect to the illuminance when the first recognition accuracy is acquired,
- (2) controlling the illuminance variable lamp so as to decrease the illuminance of the low accuracy region, and acquiring, from the vehicle controller, second recognition accuracy which is the recognition accuracy of the low accuracy region in this state,
- in a case where the first recognition accuracy is higher than the second recognition accuracy, controlling the illuminance variable lamp so as to increase the illuminance of the low accuracy region with respect to illuminance when the first recognition accuracy is acquired, and
- in a case where the second recognition accuracy is higher than the first recognition accuracy, controlling the illuminance variable lamp so as to decrease the illuminance of the low accuracy region with respect to the illuminance when the first recognition accuracy is acquired.
7 more elements
A vehicle lamp system comprising:
- an illuminance variable lamp capable of performing adjustment such that illuminance of any region of an angle of view of a vehicle camera mounted on a vehicle is different from illuminance of another region;
- an illuminance fixing lamp capable of emitting light with a specific illuminance toward a region including the angle of view of the vehicle camera;
- and
- a lamp controller configured to control the illuminance variable lamp and the illuminance fixing lamp,
- wherein after acquiring, from a vehicle controller configured to control the vehicle, position information of a low accuracy region where a recognition accuracy of the angle of view of the vehicle camera is equal to or less than a predetermined value, and first recognition accuracy which is the recognition accuracy of the low accuracy region at that time, the lamp controller is configured to, without acquiring an illuminance of the low accuracy region, execute the following (3) and/or (4):
- (3) controlling at least one of the illuminance variable lamp and the illuminance fixing lamp so as to increase the illuminance of the low accuracy region, and acquiring, from the vehicle controller, second recognition accuracy which is the recognition accuracy of the low accuracy region in this state,
- in a case where the first recognition accuracy is higher than the second recognition accuracy, turning off the illuminance fixing lamp and/or controlling the illuminance variable lamp so as to decrease the illuminance of the low accuracy region with respect to illuminance when the first recognition accuracy is acquired, and/or
- in a case where the second recognition accuracy is higher than the first recognition accuracy, turning on the illuminance fixing lamp and/or controlling the illuminance variable lamp so as to increase the illuminance of the low accuracy region with respect to illuminance when the first recognition accuracy is acquired,
- (4) controlling the illuminance variable lamp so as to decrease the illuminance of the low accuracy region, and acquiring, from the vehicle controller, second recognition accuracy which is the recognition accuracy of the low accuracy region in this state,
- in a case where the first recognition accuracy is higher than the second recognition accuracy, turning on the illuminance fixing lamp and/or controlling the illuminance variable lamp so as to increase the illuminance of the low accuracy region with respect to illuminance when the first recognition accuracy is acquired, and/or
- in a case where the second recognition accuracy is higher than the first recognition accuracy, turning off the illuminance fixing lamp and/or controlling the illuminance variable lamp so as to decrease the illuminance of the low accuracy region with respect to illuminance when the first recognition accuracy is acquired.
8 more elements
Dependencies are inferred from the claim text.