An ADV perceives a driving environment surrounding the ADV based on sensor data obtained from a variety of sensors mounted on the ADV including, for example, perceiving and recognizing a corner the ADV may be about to turn. Based on the perception data of the driving environment, a set of features representing the characteristics of an entrance point of a corner that the ADV is about to turn. Based on the characteristics of the corner, an entrance point of the corner is determined. Based on the entrance point, a lookup operation is performed in a corner mapping table to locate a mapping entry matching the entrance point. A turning radius is then obtained from the mapping entry of the corner mapping table. The turning radius obtained from the corner mapping table is then utilized to plan a trajectory (e.g., steering angle) to drive the ADV to turn the corner.
CORNER NEGOTIATION METHOD FOR AUTONOMOUS DRIVING VEHICLES WITHOUT MAP AND LOCALIZATION
2021-06-24
Patent
Electronic Resource
English
A CORNER NEGOTIATION METHOD FOR AUTONOMOUS DRIVING VEHICLES WITHOUT MAP AND LOCALIZATION
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