Patent ID: 11909748
Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 13:
14. An anti-fraud control method using an anti-fraud control system in an on-board network under a time-triggered communication protocol based on time slots, the on-board network being connected, for each of branches, to one or more electronic control devices each transmitting and receiving a frame within a predetermined time slot, the anti-fraud control system including error monitoring devices each for a corresponding one of the branches, the anti-fraud control method comprising:
receiving the frame flowing on the on-board network using a first error monitoring device among the error monitoring devices;
monitoring whether an error occurs in the frame received in the receiving using the first error monitoring device, and transmitting an error notification frame in the receiving, if an occurrence of an error is detected in the frame received in the receiving, the error notification frame containing information identifying a type of the frame subjected to the error and for notifying of the occurrence of the error in the frame;
receiving the error notification frame using each of one or more second error monitoring devices different from the first error monitoring device of the error monitoring device; and
regarding, as a frame to be invalidated, the frame subjected to the error and included in the error notification frame received in receiving of the error notification frame, and shifting the one or more second error monitoring devices to an invalidation mode for invalidating reception of subsequent frames, if no error is detected in the corresponding one of the branches with respect to the frame.