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

Claim 0:
1. An in-vehicle electronic system comprising:
a core ECU (Electronic Control Unit) mounted in a vehicle; and
a plurality of slave ECUs that is capable of communicating with the core ECU through an in-vehicle communication network,
wherein the core ECU is configured to:
manage a current time while a main power source of the vehicle is in an off state; and
manage an activation time of each of the plurality of slave ECUs in a sleep state with a management table while the main power source is in the off state;
wherein the core ECU is configured to send an activation signal to each slave ECU through the in-vehicle communication network when the current time becomes the activation time of each of the plurality of slave ECUs while the main power source is in the off state, and
wherein the core ECU is configured to receive 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, update the activation time managed by the management table.