Patent 11582112 was granted and assigned to Denso on February, 2023 by the United States Patent and Trademark Office.
In an electronic control unit, it is determine whether a data frame received from a different electronic control unit via a communication network is abnormal. A prediction data, which is predicted to be a normal data supposed to be included in the data frame determined to be abnormal, is generated by using a past data that is a data included in stored data frames, based on a stored prediction generation method. A prediction data frame including the prediction data is transmitted via the communication network.