A server for changing control gains of a vehicle is disclosed. The server includes
a first receiver for receiving environment data obtained by vehicles of a plurality
of users running in specific areas, and a second receiver for receiving learned
data obtained by a plurality of users operating vehicles, and a storage device
for accumulating the environment data and the learned data. The server further
includes a transmitter for fetching environment data and learned data necessary
to produce control gains from among the accumulated environment data and the learned
data and transmitting the fetched environment data and learned data to a user requesting
the environment data and the learned data. In a vehicle of the user, the control
gains are newly produced and previously produced control gains are changed to the
newly produced ones.
