Road surface reflectivity detection by lidar sensor
AssigneeGM Global Technology Operations LLC
InventorsInna Stainvas Olshansky, Yosi Buda, Ariel Lipson
Life of this patent
Estimating the term…
Abstract
A method of determining a surface condition of a road of travel. A light beam directed at a surface in the road of travel is transmitted utilizing a lidar system. A response is analyzed at a photodetector of the lidar system after transmitting the light beam. A determination is made whether a form of precipitation is present on the road of travel in response to analyzing the response at the photodetector. A precipitation indicating signal is generated in response to the determination that the ground surface includes a form of precipitation on the road of travel.
Claims20
A method of determining a surface condition of a road of travel, the method comprising the steps of:
- transmitting a light beam directed at a surface in the road of travel utilizing a lidar system;
- analyzing a response at a photodetector of the lidar system after transmitting the light beam;
- determining whether a form of precipitation is present on the road of travel in response to analyzing the response at the photodetector;
- generating a precipitation indicating signal in response to the determination that the ground surface includes a form of precipitation on the road of travel, the precipitation indicating signal provided to an output device to enable stability control functionality.
Dependencies are inferred from the claim text.