Patent ID: 11914444
Assignee: HONDA MOTOR CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 13:
14. A control method performed by a core ECU mounted in a vehicle and that is capable of communicating with a plurality of slave ECUs through an in-vehicle communication network, the control method comprising:
managing a current time while a main power source of the vehicle is in an off state;
sending an activation signal to each slave ECU through the in-vehicle communication network, when the current time becomes an activation time of each of the plurality of slave ECUs while the main power source is in the off state, based on a management table for managing the activation time of each of the plurality of slave ECUs in a sleep state while the main power source is in the off state; and
receiving the activation time of each slave ECU from each of the plurality of slave ECUs in a case where the main power source is turned to the off state, and based on the received activation time, updating the activation time managed by the management table.