Patent ID: 11951992
Assignee: GUANGZHOU AUTOMOBILE GROUP CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC B  G | IPC B  G

Claim 4:
5. The method according to claim 4, wherein determining the driving position from the longitudinal driving area comprises at least one of the following:
when the curvature of the lane of the target lane is not constant, using a maximum likelihood method on the following data to determine the driving position from the longitudinal driving area: a real curvature of the target lane, a reference curvature estimated for the target lane by a positioning system, and a sampling curvature estimated by the vehicle based on sampling points associated with a current position;
when a map road sign is included in the longitudinal driving area, estimating the driving position according to a target road sign closest to the current position where the vehicle is located;
estimating the driving position using location marker data already stored in a positioning system if a curvature of a lane of the target lane is constant and a map road sign is not included in the longitudinal driving area; and
estimating the driving position from the longitudinal driving region using a carrier phase finding technique.