Patent ID: 11947951
Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
Field: Transport (Mechanical engineering)
Classification: CPC G  B | IPC B  G

Claim 0:
1. A center configured to distribute, to a vehicle including a plurality of electronic control units, software update data for at least one of the electronic control units, the center comprising:
a storage device that stores update management information including a combination of latest versions of pieces of software of a plurality of first electronic control units of which control functions need to be consistent with each other, the first electronic control units being included in the electronic control units; and
one or more processors configured to
receive current versions of pieces of software of the electronic control units from the vehicle,
determine, based on the update management information stored in the storage device and the received current versions of the pieces of software, whether at least one of the pieces of software of the first electronic control units needs to be updated,
when determining that at least one of the pieces of software of the first electronic control units needs to be updated, decide any one of a first difference package and a first total data package as a distribution package based on one or more pieces of software of the first electronic control units that need to be updated, the first difference package containing difference data between a previous version and a latest version each of all pieces of software of the first electronic control units, and the first total data package containing total data of the latest version each of the one or more pieces of software of the first electronic control units that need to be updated, and
transmit, based on a request from the vehicle, the decided distribution package to the vehicle.