公开(公告)号：US11914871B2

公开(公告)日：2024-02-27

申请号：US17421670

申请日：2020-01-27

Applicant: Hitachi Astemo, Ltd.

Inventor： Motoki Tatsumi ,  Mayumi Maeda ,  Toshihisa Arai

IPC: G06F3/06

CPC classification number: G06F3/0631 ,  G06F3/0604 ,  G06F3/0634 ,  G06F3/0659 ,  G06F3/0679

Abstract: An electronic control device includes a nonvolatile memory having allocated two storage areas that are exclusively switchable between an active state and an inactive state, the two storage areas being set such that in a state in which a program is written in the storage area in the active state, a program is written for updating to the storage area in the inactive state in response to an instruction from an external device, followed by switching the storage area in the active state to the inactive state and switching the storage area in the inactive state to the active state. In the electronic control device, when the program written in the storage area in the active state differs from the program written in the storage area in the inactive state, the program written in the storage area switched to the active state is copied to the storage area in the inactive state.

公开(公告)号：US11360698B2

公开(公告)日：2022-06-14

申请号：US16439130

申请日：2019-06-12

Applicant: Hitachi Astemo, Ltd.

Inventor： Yusuke Abe ,  Koji Yuasa ,  Toshihisa Arai

IPC: G06F3/06 ,  G11C7/10 ,  G06F12/02 ,  F02D41/24

Abstract: An electronic control unit for a vehicle including a nonvolatile memory capable of erasing and writing data electrically and two buffers to acquire, by communication, divided data obtained by dividing a program by predetermined size. Then, in parallel with using the two buffers alternately to receive divided data, the electronic control unit for a vehicle uses one buffer that is not used to receive divided data to write the received divided data into the nonvolatile memory.

公开(公告)号：US11556104B2

公开(公告)日：2023-01-17

申请号：US16788392

申请日：2020-02-12

Applicant: Hitachi Astemo, Ltd.

Inventor： Yusuke Abe ,  Koji Yuasa ,  Toshihisa Arai

IPC: G05B19/042 ,  G06F8/60 ,  F02D41/24

Abstract: An electronic control unit for vehicle capable of receiving a program by communication expands the received program in a volatile memory and executes the expanded program. As an example of this program, there is a program for changing a communication environment for communicating with another unit.