Provided are a communication device and a communication restriction program capable of suppressing invalid message transmission to a network by injecting an invalid program. The ECU includes a CAN controller having a register group storing a value concerning communication with a different ECU and a processing unit processing a value for the register group. The ECU switches the mode between the full control mode in which writing and reading are allowed for the register group in the CAN controller and the restriction mode wherein writing and reading are restricted for a part of the registers in the register group. The ECU sets a predetermined period from activation corresponding to the full control mode, and switches the full control mode to the restriction mode after the predetermined period elapses. After switching to the restriction mode, the ECU will not switch the mode to the full control mode.
COMMUNICATION DEVICE AND NON-TRANSITORY RECORDING MEDIUM
2018-06-14
Patent
Electronic Resource
English
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION , Übertragung digitaler Information, z.B. Telegrafieverkehr |
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