Patent ID: 8290663
Filing Date: 2012-10-16
Classification: G06F

Abstract:
1. A vehicle electronic control system comprising: a first electronic control unit configured to execute a control process A; and a second electronic control unit connected to the first electronic control unit and configured to execute a control process B that is required to execute after execution of the control process A, wherein the first electronic control unit includes a synchronization signal transmit unit configured to transmit a synchronization signal to the second electronic control unit; and a first control process execution unit configured to start execution of the control process A after transmission of the synchronization signal, wherein the second electronic control unit includes a synchronization signal receive unit configured to receive the synchronization signal from the first electronic control unit; a first time measuring unit configured to measure a predetermined time Tb since reception of the synchronization signal; and a second control process execution unit configured to start execution of the control process B when the predetermined time Tb elapses, wherein the predetermined time Tb measured by the first time measuring unit corresponds to a time between the start of execution of the control process A and the start of execution of the control process B by a single electronic control unit in a control process in which the control process A and the control process B are controlled by the single electronic control unit.