公开(公告)号：US20210191661A1

公开(公告)日：2021-06-24

申请号：US17167373

申请日：2021-02-04

Applicant: DENSO CORPORATION

Inventor： Yuzo HARATA ,  Kazuhiro UEHARA ,  Mitsuyoshi NATSUME ,  Takuya KAWASAKI ,  Masaaki ABE

IPC: G06F3/06 ,  G06F16/23 ,  B60R16/023

Abstract: An electronic control unit includes an installation execution unit that operates at least one of an application program or parameter data stored in a first data storage bank serving as an active bank and rewrites a second data storage bank serving as an inactive bank by writing, to the second data storage bank, update data acquired from an external device, and an activation execution unit that switches the active bank from the first data storage bank to the second data storage bank. The installation execution unit rewrites the second data storage bank during a vehicle being travelable or parked. The activation execution unit switches the active bank from the first data storage bank to the second data storage bank during the vehicle being parked.

公开(公告)号：US20210165651A1

公开(公告)日：2021-06-03

申请号：US17170155

申请日：2021-02-08

Applicant: DENSO CORPORATION

Inventor： Yuzo HARATA ,  Kazuhiro UEHARA ,  Mitsuyoshi NATSUME ,  Takuya KAWASAKI

IPC: G06F8/658 ,  B60W50/00 ,  G06F8/654

Abstract: An electronic control unit includes a difference data acquisition unit that is configured to acquire difference data that is data to be written into a data storage area of the electronic control unit, the difference data being a difference between old data and new data, a consistency determination unit that is configured to determine whether the difference data is consistent with the data storage area or storage data stored in the data storage area based on first determination information related to the storage data and second determination information acquired in association with the difference data, an update data restoration unit that is configured to restore update data as the new data using the difference data and the storage data when the consistency determination unit determines that the difference data is consistent, and a data writing unit that is configured to write the update data restored by the update data restoration unit into the data storage area.

公开(公告)号：US20210157569A1

公开(公告)日：2021-05-27

申请号：US17167443

申请日：2021-02-04

Applicant: DENSO CORPORATION

Inventor： Yuzo HARATA ,  Kazuhiro UEHARA ,  Takuya KAWASAKI ,  Mitsuyoshi NATSUME ,  Masaaki ABE

IPC: G06F8/65 ,  B60K37/02

Abstract: In a vehicle electronic control system, a center device includes an update data storage unit that stores update data for rewrite targets. Program rewriting to rewrite target electronic control units is one campaign. The center device includes a display control information storage unit that stores display control information necessary to display information related to the campaign on a vehicle side. The center device transmits the update data stored in the update data storage unit and the display control information stored in the display control information storage unit to a vehicle master device.

公开(公告)号：US20210155174A1

公开(公告)日：2021-05-27

申请号：US17170193

申请日：2021-02-08

Applicant: DENSO CORPORATION

Inventor： Yuzo HARATA ,  Kazuhiro UEHARA ,  Masaaki ABE ,  Mitsuyoshi NATSUME ,  Takuya KAWASAKI

IPC: B60R16/023 ,  B60R11/02

Abstract: A display control device includes a cancellation detection unit that is configured to detect a cancellation regarding a program rewrite from first update data stored in the rewrite target ECU to second update data acquired from an external device, a write instruction unit that is configured to distribute the second update data to the rewrite target ECU and instruct the rewrite target ECU to write the second update data thereinto, and a notification instruction unit that is configured to give an instruction for notification of a progress regarding the program rewrite. The notification instruction unit is further configured to give the instruction to make the notification of the progress regarding the program rewrite in a first manner when the write instruction unit is distributing the second update data, and give the instruction to make the notification of the progress regarding the program rewrite in a second manner when the cancellation detection unit detects the cancellation. The write instruction unit is further configured to continue distributing the second update data when the cancellation detection unit detects the cancellation during distribution of the second update data by the rewrite instruction unit.

公开(公告)号：US20210155173A1

公开(公告)日：2021-05-27

申请号：US17168969

申请日：2021-02-05

Applicant: DENSO CORPORATION

Inventor： Yuzo HARATA ,  Kazuhiro UEHARA ,  Mitsuyoshi NATSUME ,  Takuya KAWASAKI

IPC: B60R16/023 ,  H04L12/40 ,  G06F9/38

Abstract: A vehicle master device includes a rewrite target specifying unit that is configured to identify a plurality of rewrite target ECUs, a rewrite completion determination unit that is configured to determine whether a program rewrite is completed for all the plurality of rewrite target ECUs specified by the rewrite target specifying unit, an activation executable determination unit that is configured to determine whether activation is executable when the rewrite completion determination unit determines that the program rewrite is completed for all the plurality of rewrite target ECUs, and an activation request instruction unit that is configured to instruct all the plurality of rewrite target ECUs at the same time to perform the activation when the activation executable determination unit determines that activation is executable.

公开(公告)号：US20200216083A1

公开(公告)日：2020-07-09

申请号：US16821844

申请日：2020-03-17

Applicant: DENSO CORPORATION

Inventor： Takuya KAWASAKI ,  Yuzo HARATA ,  Kazuaki HAYAKAWA

IPC: B60W50/02

Abstract: A vehicle management ECU comprises a diagnosis section for diagnosing electronic control units that are to be diagnosed according to a diagnosis scenario defined by a diagnosis application, and a diagnosis scenario determination section for determining whether a diagnosis scenario used for diagnosis by the diagnosis section was appropriate. If the diagnosis scenario determination section specifies that the diagnosis scenario used for the present diagnosis has not been appropriate, the diagnosis section carries out diagnosis according to a diagnosis scenario defined by a new diagnosis application different from the present diagnosis application.

公开(公告)号：US20190108014A1

公开(公告)日：2019-04-11

申请号：US16211473

申请日：2018-12-06

Applicant: DENSO CORPORATION

Inventor： Sho NAKAMURA ,  Yuzo HARATA ,  Kazuhiro UEHARA

IPC: G06F8/65 ,  H04L29/08 ,  H04W4/40

Abstract: A vehicle system includes: a reprogramming slave device implemented by an electronic control unit (hereinafter “ECU”) to be a target of updating an update file of a program stored among a plurality of the ECUs; a reprogramming master device that transmits the update file to the reprogramming slave device to control the update of the program stored in the reprogramming slave device according to a request from a terminal operable by a vehicle user; and a determination unit determines the progress of update processing on the update file. A vehicle device functions as the reprogramming master that includes: an obtaining unit for obtaining the progress determined by the determination unit; and a notification command unit for commanding a notification medium to notify the progress obtained by the obtaining unit.

公开(公告)号：US20220391195A1

公开(公告)日：2022-12-08

申请号：US17889478

申请日：2022-08-17

Applicant: DENSO CORPORATION ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Syo NAKAMURA ,  Yuzo HARATA ,  Kazuhiro UEHARA

IPC: G06F8/65

Abstract: A data distribution device for a master device transferring an update data to electronic control devices: acquires multiple update data corresponding to the electronic control devices as a writing target; acquires recombination information for the master device to execute a transfer process; divides the update data based on the recombination information to generate a division data; packages the division data to generate packages; and distributes the packages to the master device.

公开(公告)号：US20220365772A1

公开(公告)日：2022-11-17

申请号：US17875183

申请日：2022-07-27

Applicant: DENSO CORPORATION

Inventor： Shoma OKAMOTO ,  Kazuhiro UEHARA ,  Yuzo HARATA

IPC: G06F8/656 ,  G06F8/41 ,  B60R16/023

Abstract: A first package corresponding to a first system and a second package corresponding to a second system are downloaded from a center device, and an update data is extracted from the first package and the second package. An electronic control device as a write target installs the update data and activates the update data after an install of the update data is completed. All electronic control devices as a first write target corresponding to the first system and all electronic control devices as a second write target corresponding to the second system are instructed at a same timing to activate the update data after completing the install of the update data in all the electronic control devices.

公开(公告)号：US20210182048A1

公开(公告)日：2021-06-17

申请号：US17167580

申请日：2021-02-04

Applicant: DENSO CORPORATION

Inventor： Yuzo HARATA ,  Kazuhiro UEHARA ,  Mitsuyoshi NATSUME ,  Takuya KAWASAKI

IPC: G06F8/65 ,  B60W50/00

Abstract: A vehicle electronic control system includes a vehicle master device that is configured to instruct a rewrite target electronic control unit (ECU) to write update data received from a center device and distribute the update data to the rewrite target ECU, the rewrite target ECU that is configured to write the update data received from the vehicle master device into a non-volatile memory, and a meter device that has an indicator. The vehicle electronic control system further includes a phase specifying unit that is configured to specify a phase of a program update, a display instruction unit that is configured to instruct to display the indicator in a manner corresponding to the phase of the program update specified by the phase specifying unit, and an indicator display control unit that is configured to control to display the indicator according to an instruction from the display instruction unit.