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Patent Searching and Data


Title:
AUTOMATIC LIGHT SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/176604
Kind Code:
A1
Abstract:
An objective of the present invention is to attain automatic light control that detects the brightness of the surroundings using vehicle speed, steering angle, and other relevant information so that said control will not feel unnatural to the driver. Another objective of the present invention is to prevent erroneous operations caused by sudden changes in the environment during vehicle travel or by a preceding vehicle. Provided is an automatic light system for automatically turning on and off the lights of a vehicle in accordance with the surrounding environment, the system including: an imaging device that images an area in front of the vehicle and generates image data; an image processing unit that generates light mode information, with which turning on and off of the lights is controlled, on the basis of the brightness in an upper region and lower region of the image data; and a light control unit that controls the lights on the basis of the light mode information. The image processing unit sets a higher weight to a measurement region in the movement direction of the vehicle from among a plurality of measurement regions set in the upper region and a lower weight to the other measurement regions to calculate the brightness in the upper region and generates the light mode information on the basis of the brightness in the upper region.

Inventors:
YU Zihan (2520, Takaba, Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
YASUKAWA Takakiyo (2520, Takaba, Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
MONJI Tatsuhiko (2520, Takaba, Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
Application Number:
JP2019/008272
Publication Date:
September 19, 2019
Filing Date:
March 04, 2019
Export Citation:
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Assignee:
HITACHI AUTOMOTIVE SYSTEMS, LTD. (2520, Takaba Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
International Classes:
B60Q1/02
Domestic Patent References:
WO2012066609A12012-05-24
Foreign References:
JP2009255722A2009-11-05
JP2008110715A2008-05-15
JP2015071403A2015-04-16
JP2010006172A2010-01-14
JP2005075304A2005-03-24
Attorney, Agent or Firm:
TODA Yuji (6-1, Marunouchi 1-chome, Chiyoda-k, Tokyo 20, 〒1008220, JP)
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