Hitachi Astemo Ltd.

Masashi Mizoguchi

Tasuku Ishigooka

Kenichi Osada

Kazuyoshi Serizawa

Yuki Tanaka

Fumio Narisawa

Tomohito Ebina

Takahiro Iida

Toru Irie

Yoshimi Yamazaki

Hiroyuki Nakamura

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

Electronic control device

An object of the present invention is to provide a technology that enables second control software to continue processing using a peripheral circuit even in a situation where an abnormality related to first control software occurs. An electronic control device includes a memory () that stores the first control software and the second control software, a CPU () that executes the first control software and the second control software, and a peripheral circuit () used by the first control software and the second control software. The memory further includes a first buffer () and a second buffer (). The CPU interrupts at least one of the processing of storing first peripheral transmission information in the first buffer and the processing of transmitting the first peripheral transmission information to the peripheral in a specific situation in which the abnormality related to the first control software occurs.

An appropriate test environment is selected while preventing test cases from being detained therein. A test environment determination device includes: an element selection unit that selects one or more test targets and one or more test environments for executing a test case based on target requirements described for specifications of an electronic control unit, which is a test target, and environment requirements described for specifications of a test environment for simulating an external environment of the test target; an environment operation information acquisition unit that acquires operation information on the test environments; and an environment selection unit that selects a combination of the selected test target and the selected test environment based on the acquired operation information.

Test environment determination device and test environment determination method

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Tokyo, Japan

Masashi Mizoguchi