Patent ID: 11920948
Assignee: DENSO CORPORATION
Field: Control (Instruments)
Classification: CPC G  B | IPC B  G

Claim 4:
5. A vehicle-side device that autonomously drives a vehicle along a road segment using map data including coordinate information of a plurality of landmarks disposed along the road, the vehicle-side device comprising:
at least one processor configured to:
determine whether to update the map data in association with a road segment on which the vehicle is traveling by:
acquiring, from a peripheral monitoring sensor mounted on the vehicle, peripheral object data representing a feature disposed in a vicinity of the vehicle;
analyzing the peripheral object data to calculate a position of a landmark with respect to the vehicle;
calculating a first position of the vehicle based on the position of the landmark with respect to the vehicle calculated from the peripheral object data and (ii) a position of the landmark in the map data;
calculating a second position of the vehicle based on information that does not include the map data;
comparing the first position and the second position to determine whether the first position and the second position deviate from each other;
transmitting index information to a server indicating that a position misalignment occurs in the map at the second position for a state in which the first position and the second position deviate from each other, the index information comprising a request to the server requesting that the map data be updated; and
downloading updated map data from the server and performing a control of the vehicle.