Honda Motor Co., Ltd.
UPDATE METHOD OF MAP DATA AND MAP INFORMATION SYSTEM

Abstract:

In an update method of map data executed by a map information system provided in a vehicle, wherein the map data includes multiple pieces of block data separated so as to correspond to blocks on a map and stored in a storage device of the map information system, the map information system decides pieces of block data to be updated based on at least one of a passage history and a future expected route when the vehicle is in a sleep state, communicates with a map server having a latest version of the map data and downloads update data corresponding to the pieces of block data to be updated from the map server, and updates the pieces of block data stored in the storage device based on the downloaded update data.