Autonomous driving system

An autonomous driving system mounted on a vehicle, comprising:

• one or more processing circuitries;
• and
• one or more memory devices, wherein the one or more processing circuitries are configured to:
• set an autonomous driving route indicating a route of the vehicle on which autonomous driving control of the vehicle is executed;
• and
• store log data related to the autonomous driving control in the one or more memory devices while the vehicle is traveling along the autonomous driving route,
• wherein, in the setting of the autonomous driving route, the one or more processing circuitries are configured to:
• set at least two candidates for a route from a current location of the vehicle to a destination of the vehicle;
• predict for each of the at least two candidates of the route a fluctuation amount of the log data that fluctuates in the one or more memory devices during the travel of the vehicle along the candidate of the route;
• predict a future value of a free space in the one or more memory devices at which the vehicle arrives at a destination of the candidate of the route for each of the at least two candidates of the route based on the fluctuation amount of the log data predicted for each of the at least two candidates of the route;
• and
• select as the autonomous driving route one candidate of the route from the at least two candidates of the route of which the future value of the free space is the maximum.