Vehicle headlight control system and method
First Claim
1. A vehicle headlight control method comprising:
- generating host vehicle information with a positioning system, the host vehicle information including a host vehicle location and a host vehicle trajectory;
receiving remote vehicle information with a receiver, the remote vehicle information including a remote vehicle location and a remote vehicle trajectory;
calculating a remote vehicle distance from the host vehicle location with a controller based on the remote vehicle information and the host vehicle information;
determining with the controller whether the host vehicle trajectory and the remote vehicle trajectory are such that the remote vehicle will pass by the host vehicle within a predetermined distance and whether the remote vehicle distance is less than the predetermined distance;
determining with the controller whether the host vehicle information and the remote vehicle information indicate a converging path or a diverging path based on the host vehicle trajectory and the remote vehicle trajectory by determining an absolute value of the difference between a heading angle of the host vehicle and an angle between a direction of the host vehicle and a straight line from the host vehicle to the remote vehicle; and
automatically operating with the controller a headlight of the host vehicle in a first setting while the remote vehicle distance is determined to be less than the predetermined distance and only when the converging path is indicated.
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Accused Products
Abstract
A vehicle headlight control system includes a headlight, a positioning system, a receiver, and a controller. The positioning system is configured to generate host vehicle information including a host vehicle location and a host vehicle trajectory. The receiver is configured to receive remote vehicle information including a remote vehicle location and a remote vehicle trajectory. The controller is configured to calculate a remote vehicle distance from the host vehicle location based on the remote vehicle information and the host vehicle information, determine whether the remote vehicle distance is less than a predetermined distance, and automatically operate the headlight in a first setting while the remote vehicle distance is determined to be less than the predetermined distance.
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Citations
18 Claims
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1. A vehicle headlight control method comprising:
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generating host vehicle information with a positioning system, the host vehicle information including a host vehicle location and a host vehicle trajectory; receiving remote vehicle information with a receiver, the remote vehicle information including a remote vehicle location and a remote vehicle trajectory; calculating a remote vehicle distance from the host vehicle location with a controller based on the remote vehicle information and the host vehicle information; determining with the controller whether the host vehicle trajectory and the remote vehicle trajectory are such that the remote vehicle will pass by the host vehicle within a predetermined distance and whether the remote vehicle distance is less than the predetermined distance; determining with the controller whether the host vehicle information and the remote vehicle information indicate a converging path or a diverging path based on the host vehicle trajectory and the remote vehicle trajectory by determining an absolute value of the difference between a heading angle of the host vehicle and an angle between a direction of the host vehicle and a straight line from the host vehicle to the remote vehicle; and automatically operating with the controller a headlight of the host vehicle in a first setting while the remote vehicle distance is determined to be less than the predetermined distance and only when the converging path is indicated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A vehicle headlight control system comprising:
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a headlight; a positioning system configured to generate host vehicle information including a host vehicle location and a host vehicle trajectory; a receiver configured to receive remote vehicle information including a remote vehicle location and a remote vehicle trajectory; and a controller configured to calculate a remote vehicle distance from the host vehicle location based on the remote vehicle information and the host vehicle information, determine whether the host vehicle trajectory and the remote vehicle trajectory are such that the remote vehicle will pass by the host vehicle within a predetermined distance and whether the remote vehicle distance is less than a predetermined distance, determine whether the host vehicle information and the remote vehicle information indicate a converging path based on a difference between a heading angle of the host vehicle and an angle between a direction of the host vehicle and a straight line from the host vehicle to the remote vehicle, and automatically operate the headlight in a first setting while the remote vehicle distance is determined to be less than the predetermined distance and only when the converging path is indicated. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification