Title:
ELECTRONIC CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/159310
Kind Code:
A1
Abstract:
The present invention ensures a real-time property and causes the processing capability of a CPU to be sufficiently utilized. According to the present invention, an interrupt process execution time is recorded; an additional task execution time of a CPU is recorded in a task period, when the CPU executes an additional task; when the execution of an indispensable task ends and there is an additional task corresponding to the indispensable task, the execution time of the additional task is predicted through the sum of the interrupt execution time in the task period and the additional task execution time, an elapsed task period, and an execution-scheduled time of the additional task corresponding to the indispensable task that the execution ends; a predicted execution time of the additional task is compared with a deadline time of the additional task; and execution management of the additional task is performed by increasing the priority of the additional task recorded in a task management table, when the predicted execution time of the additional task is short, and by not increasing the priority of the additional task in the task management table, when the predicted execution time of the additional task is long.
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Inventors:
YAMADA HIROMICHI (JP)
Application Number:
PCT/JP2018/005398
Publication Date:
August 22, 2019
Filing Date:
February 16, 2018
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
G06F9/48
Domestic Patent References:
| WO2017168814A1 | 2017-10-05 |
Foreign References:
| JP2016162330A | 2016-09-05 | |||
| JP2016173750A | 2016-09-29 | |||
| JP2016013782A | 2016-01-28 |
Attorney, Agent or Firm:
TODA Yuji (JP)
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