Map generation system, in-vehicle device

A method for updating an official map using a temporary map, the method executed by at least three processors in accordance with assisted driving or automatic driving of a vehicle among a plurality of vehicles, each of the plurality of vehicles equipped with one or more sensors to acquire road information, the method comprising:

• acquiring, from the vehicle, road information from one or more sensors of the vehicle while the vehicle is performing automatic driving at a first automatic driving level;
• generating the temporary map using the road information acquired during automatic driving using the first automatic driving level;
• verifying the temporary map by
• transmitting the temporary map to a verification vehicle among the plurality of vehicles,
• generating, using the verification vehicle, first route information for automatic driving at the first automatic driving level using the temporary map,
• generating, using the verification vehicle, second route information for automatic driving at the first automatic driving level using the road information acquired from one or more sensors of the verification vehicle, and
• calculating, using the verification vehicle, a difference amount B between the first route information generated from the temporary map and the second route information which is information on a route on which the vehicle actually travels;
• and
• receiving, from the verification vehicle, a determination result indicating that a quality of the temporary map is acceptable in response to the difference amount B being a predetermined value or less;
• updating the official map, for use at a second automatic driving level that is higher than the first automatic driving level, using the temporary map in response to the determination result indicating that the quality of the temporary map is acceptable being outputted;
• distributing the updated official map to the vehicle;
• and
• performing, by the vehicle, automatic driving using the updated official map at the second automatic driving level and using an own vehicle position specified by the one or more sensors of the vehicle.

A method for updating an official map using a temporary map, the method executed by at least three processors in accordance with assisted driving or automatic driving of a vehicle, the method comprising:

• distributing the official map to the vehicle, wherein the official map is generated using the temporary map when the temporary map is verified at a first automatic driving level, and the official map is for use at a second automatic driving level that is higher than the first automatic driving level;
• acquiring road information from one or more sensors of the vehicle;
• calculating, by the vehicle, a difference amount C between route information generated from the official map and route information generated from the road information, and a difference amount D between route information generated from the official map and route information which is information on a route on which the vehicle actually travels;
• outputting, by the vehicle, feature change information, which is information regarding a change in a feature, when the difference amount C and the difference amount D exceed a predetermined value;
• generating a new temporary map using the feature change information;
• updating the official map using the new temporary map;
• and
• performing, by a vehicle to which the updated official map is provided, automatic driving using the updated official map.