Patent ID: 6243627
Filing Date: 2001-06-05
Classification: F02D,G06F

Abstract:
An electronic control system, comprising:a first electronic control unit that controls a control object during normal operation and that has a reloadable nonvolatile memory;a second electronic control unit in communication with the first electronic control unit;the first electronic control unit operating in accordance with a program stored in the nonvolatile memory and executing reload processing for overwriting the program with a new program upon receiving a reload command;the second electronic control unit monitoring the first electronic control unit and storing information indicating that the first electronic control unit is abnormal in an associated abnormality information storing memory when a communication state of the first electronic control unit is determined by the second electronic control unit to be abnormal; andwherein the first electronic control unit transmits an erasure request to the second electronic control unit to erase the information stored in the abnormality information storing memory when the reload processing has finished.