公开(公告)号：US20220398135A1

公开(公告)日：2022-12-15

申请号：US17774540

申请日：2020-09-29

Applicant: HITACHI ASTEMO, LTD.

Inventor： Masashi MIZOGUCHI ,  Fumio NARISAWA ,  Hiroyuki NAKAMURA ,  Tasuku ISHIGOOKA ,  Yuki TANAKA

IPC: G06F9/50 ,  G06F9/48

Abstract: To appropriately execute a task by an electronic control device including a processor having a plurality of cores. An ECU 100 includes 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 unit 11 generates a first plan. A diagnosis task planning unit 12 generates a second plan. Task processing units 10a and 10b execute the first task based on the first plan. A diagnosis task correction unit 13 times a delay time of the first task executed by the task processing units 10a and 10b, and postpones the second task of the second plan to the subsequent executable timing in accordance with the timed delay time. A diagnosis unit 14 executes the second task for each core based on the second plan corrected by the diagnosis task correction unit 13.

公开(公告)号：US20220035954A1

公开(公告)日：2022-02-03

申请号：US17290456

申请日：2019-10-16

Applicant: Hitachi Astemo, Ltd.

Inventor： Hiroki MAEHAMA ,  Fumio NARISAWA ,  Satoshi OTSUKA ,  Kazuyoshi SERIZAWA

IPC: G06F21/70 ,  G06F8/20

Abstract: The present invention provides a software management device capable of converting a term used in a model and an abstraction level thereof. A software management device 1 includes: an input unit 2 that inputs a target model; a storage unit 3 that hierarchically stores functions and/or names constituting the model; and an in-model name replacement unit 6 that selects a corresponding function and/or name from the storage unit 3 according to the input model input from the input unit 2, and replaces a function and/or a name in the input model with the selected function and/or name.

公开(公告)号：US20240253646A1

公开(公告)日：2024-08-01

申请号：US18560584

申请日：2022-03-04

Applicant: Hitachi Astemo, Ltd.

Inventor： Swarn Singh RATHOUR ,  Tasuku ISHIGOOKA ,  Hideyuki SAKAMOTO ,  Takeshi FUKUDA ,  Fumio NARISAWA

IPC: B60W50/029 ,  B60W50/00 ,  B60W50/02

CPC classification number: B60W50/029 ,  B60W50/0205 ,  B60W50/0225 ,  B60W2050/0006

Abstract: An object of the present invention is to provide a vehicle control device and a vehicle control system capable of further reducing system cost in failure mitigation. The vehicle control device includes a master ECU and one or more client ECUs. The master ECU generates a safety process list on a basis of a predetermined failure operation pattern and transmits the safety process list to each of the client ECUs when detecting a failure of any one of the client ECUs, the safety process list includes one or more safety processes and an execution start time limit corresponding to each of the safety processes, each of the client ECUs switches an operation mode from a normal mode to a failure operation mode in response to reception of the safety process list, and starts execution of each of the safety processes by a corresponding execution start time limit, the failure operation pattern is configured such that each of the safety processes is executed by a client ECU having a memory capacity capable of executing the safety process, and the failure operation pattern is configured such that the same safety process is not executed by a plurality of client ECUs.