Patent ID: 11954480
Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
Field: Computer technology (Electrical engineering)
Classification: CPC G  B | IPC G

Claim 3:
4. An over-the-air (OTA) master comprising:
one or more processors configured to:
receive, from a center, first-type update data for a first electronic control unit on which a first-type non-volatile memory having one storage area is mounted and second-type update data for a second electronic control unit on which a second-type non-volatile memory having two storage areas is mounted, the first electronic control unit and the second electronic control unit being included in a plurality of electronic control units mounted on a vehicle, and the first-type update data and the second-type update data being update data based on which software update for the electronic control units is controlled;
control reception of the first-type update data and the second-type update data from the center based on a communication state between the center and the OTA master;
request, when a communication load between the center and the OTA master is lower than a predetermined value, the center to transmit a distribution package including the first-type update data and the second-type update data; and
request, when the communication load between the center and the OTA master is equal to or higher than the predetermined value, the center to transmit a first distribution package including the first-type update data and a second distribution package including the second-type update data separately.