Patent ID: 9126601
Filing Date: 2015-09-08
Classification: B60W,G06F,H04L

Abstract:
1. A vehicle network system comprising: a plurality of electronic control units that are connected to a vehicle network so as to be communicable with each other and that allow internal data to be modified, wherein a predetermined electronic control unit that is one of the plurality of electronic control units generates first data on the basis of the internal data held in the predetermined electronic control unit, at least one of the plurality of electronic control units compares second data with third data, the second data created by collecting and combining pieces of split data, the pieces of split data each split from the first data and the pieces of split data distributed and held in the plurality of electronic control units, and the third data generated, after the pieces of split data are split from the first data and the pieces of split data are distributed, on the basis of internal data held by the predetermined electronic control unit at each point in time, and it is determined whether the internal data held in the predetermined electronic control unit has been modified on the basis of a result of the comparison.