Patent ID: 9562779
Date: 2017-02-07
CPC Classifications: B62D,G01C,G05D

Claim:
1. A method for generating geometrical map data that includes road curvature data for operating an autonomous vehicle comprising: collecting, by respective sensors of one or more vehicles, a plurality of curvature samples when the one or more vehicles traverses one or more travel segments; processing the curvature samples to determine at least one experienced curvature for the one or more travel segments, the at least one experienced curvature indicating respective driving paths of the one or more vehicles through the one or more travel segments; determining at least one geometry-based curvature for the one or more travel segments, the at least one geometry-based curvature calculated based on road geometry data associated with the one or more travel segments; determining one or more differences between at least one experienced curvature and the at least one geometry-based curvature to associate the one or more differences to the one or more travel segments in the geometrical map data; and initiating or recommending a manual operation of the autonomous vehicle based on the geometrical map data including the one or more differences when the autonomous vehicle traverses the one or more travel segments.