Electronic control device

Abstract

To appropriately execute a task by an electronic control device including a processor having a plurality of cores. An ECUincludes a multi-core CPU having a plurality of cores that execute a first task that has an execution time that varies depending on a processing amount every predetermined cycle and a second task that is higher in priority than the first task and is prohibited from being interrupted. The second task is set to be inexecutable simultaneously between the plurality of cores. A task allocation unitgenerates a first plan. A diagnosis task planning unitgenerates a second plan. Task processing unitsandexecute the first task based on the first plan. A diagnosis task correction unittimes a delay time of the first task executed by the task processing unitsand, and postpones the second task of the second plan to the subsequent executable timing in accordance with the timed delay time. A diagnosis unitexecutes the second task for each core based on the second plan corrected by the diagnosis task correction unit