公开(公告)号：US20210157575A1

公开(公告)日：2021-05-27

申请号：US17166498

申请日：2021-02-03

Applicant: DENSO CORPORATION

Inventor： Tomoya OGAWA ,  Nao SAKURAI ,  Yuzo HARATA ,  Kazuhiro UEHARA ,  Takuya HASEGAWA ,  Takuya KAWASAKI ,  Kazuaki HAYAKAWA

IPC: G06F8/658 ,  G06F16/23 ,  B60R16/023

Abstract: A center device includes an update data storage unit in which new data and new difference data for updating to the new data from old data are stored for, among electronic control units mounted on a vehicle, a target device targeted for data update. The center device generates, using the new data, a first verification value for verifying integrity in the vehicle, and generates, using the new difference data, a second verification value for verifying integrity of the new difference data in the vehicle. The center device generates a package including the new difference data, the first verification values and the second verification values for a plurality of the target devices. The center device generates, using the distribution package, a third verification value for verifying integrity of the distribution package in the vehicle, and transmits the distribution package along with the third verification value to the in-vehicle device.

公开(公告)号：US20210157574A1

公开(公告)日：2021-05-27

申请号：US17169026

申请日：2021-02-05

Applicant: DENSO CORPORATION

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

IPC: G06F8/656 ,  B60W50/00 ,  G07C5/08 ,  G06F8/658

Abstract: A vehicle master device includes a rewrite specification data acquisition unit that is configured to acquire rewrite specification data from outside, a rewrite specification data analysis unit that is configured to analyze the rewrite specification data acquired by the rewrite specification data acquisition unit, a rewrite target specifying unit that is configured to identify a rewrite target ECU and a non-rewrite target ECU based on an analysis result by the rewrite specification data analysis unit, an installability determination unit that is configured to determine whether installation is feasible for the rewrite target ECU, and a state transition control unit that is configured to control at least one non-rewrite target ECU to be in a stop state, a sleep state, or a power saving operating state when the installability determination unit determines that the installation is feasible.

公开(公告)号：US20210157572A1

公开(公告)日：2021-05-27

申请号：US17167668

申请日：2021-02-04

Applicant: DENSO CORPORATION

Inventor： Yuzo HARATA ,  Kazuhiro UEHARA ,  Takuya HASEGAWA ,  Takuya KAWASAKI ,  Kazuaki HAYAKAWA

IPC: G06F8/654 ,  B60R16/023

Abstract: In a vehicle electronic control system, a vehicle master device is configured to acquire data storage bank information including information for specifying which bank is an active bank and information for specifying software versions of an active bank and an inactive bank from a rewrite target ECU that has a non-volatile memory with a plurality of data storage banks and to transmit the data storage bank information acquired by the data storage bank information acquisition unit to a center device. The center device is configured to select update data compliant to the inactive bank on the basis of the software versions and the active bank specified by the data storage bank information received from the vehicle master device and to transmit a distribution package including the update data selected by the update data selection unit to the vehicle master device.

公开(公告)号：US20210157492A1

公开(公告)日：2021-05-27

申请号：US17170306

申请日：2021-02-08

Applicant: DENSO CORPORATION

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

IPC: G06F3/06 ,  B60R16/023 ,  H04L12/40

Abstract: In a vehicle electronic control system, a second device includes a transfer target file specifying unit that is configured to specify a file, as a transfer target file, including update data to be written into a third device, a first data size specifying unit that is configured to specify a first data size to acquire the transfer target file specified by the transfer target file specifying unit, and an update data distribution unit that is configured to distribute the update data to the third device using a plurality of divided files transferred from the first device. The first device includes an update data transfer unit that is configured to transfer the update data by dividing the transfer target file specified by the transfer target file specifying unit into the plurality of divided files according to the first data size specified by the first data size specifying unit, and transferring the plurality of divided files to the second device.

公开(公告)号：US20210155252A1

公开(公告)日：2021-05-27

申请号：US17167547

申请日：2021-02-04

Applicant: DENSO CORPORATION

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

IPC: B60W50/00 ,  G07C5/08

Abstract: A vehicle master device includes a cancellation request determination unit that is configured to determine whether a cancellation request is generated during program rewriting from an old program to a new program in response to distributing the update data to the rewrite target ECU by the update data distribution unit, a rollback method specifying unit that is configured to, when the cancellation request determination unit determines that the cancellation request is generated, specify a rollback method for returning the rewrite target ECU to a state where writing of the update data has not yet started in accordance with a memory type of the non-volatile memory of the rewrite target ECU and a data type of the update data of the new program or the old program, and a rollback execution unit that is configured to instruct the rewrite target ECU to execute a rollback according to the rollback method specified by the rollback method specifying unit and have the rewrite target ECU operate with the old program.

公开(公告)号：US20190111907A1

公开(公告)日：2019-04-18

申请号：US16211437

申请日：2018-12-06

Applicant: DENSO CORPORATION

Inventor： Yuzo HARATA ,  Sho NAKAMURA ,  Kazuhiro UEHARA

IPC: B60W10/06 ,  B60W10/10 ,  B60W10/30 ,  G06F8/65 ,  G06F16/182 ,  H04L29/08

Abstract: A vehicle system includes: a reprogramming slave device that is an electronic control unit (hereinafter, referred to as 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 in response to a request from a terminal operable by a vehicle user to control updating of the program stored in the reprogramming slave device; and a determination unit that determines traveling propriety of a vehicle when the update file is rewritten in the reprogramming slave device. The vehicle device functions as the reprogramming master device, and includes: an obtaining unit that obtains the traveling propriety determined by the determination unit; and a notification command unit that commands a notification medium to notify information of the traveling propriety obtained by the obtaining unit.

公开(公告)号：US20240311135A1

公开(公告)日：2024-09-19

申请号：US18675823

申请日：2024-05-28

Applicant: DENSO CORPORATION

Inventor： Hideo YOSHIMI ,  Yuzo HARATA ,  Nao KOJIMA ,  Kazuhiro UEHARA ,  Yoshitaka OZAKI ,  Shuhei TAKAHASHI ,  Masaaki ABE ,  Koto TOMATSU

IPC: G06F8/65

CPC classification number: G06F8/65

Abstract: A center device that manages data to be written in an electronic control device and performs, by an application program, functions to transmit update data to a vehicle by wireless communication is provided. An application program implementing at least one of the functions adopts a serverless architecture. The application program is activated upon occurrence of an event and is dynamically allocated with a resource in an on-demand manner for execution of a code of the application program. The resource is released when the execution of the code is terminated. The center device is configured to receive vehicle configuration information and determine whether there is campaign information; generate campaign notification information; manage a generation state of the campaign notification information; and distribute the campaign notification information.

公开(公告)号：US20230234549A1

公开(公告)日：2023-07-27

申请号：US18190212

申请日：2023-03-27

Applicant: DENSO CORPORATION

Inventor： Yuzo HARATA ,  Sho NAKAMURA ,  Kazuhiro UEHARA

IPC: B60W10/06 ,  B60R16/02 ,  G06F11/00 ,  G06F16/182 ,  B60W10/10 ,  B60W10/30 ,  G06F8/65 ,  H04L67/12 ,  H04L67/00

CPC classification number: B60W10/06 ,  B60R16/02 ,  G06F11/00 ,  G06F16/183 ,  B60W10/10 ,  B60W10/30 ,  G06F8/65 ,  H04L67/12 ,  H04L67/34 ,  B60W2050/0004

Abstract: A vehicle system includes: a reprogramming slave device that is an electronic control unit (hereinafter, referred to as 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 in response to a request from a terminal operable by a vehicle user to control updating of the program stored in the reprogramming slave device; and a determination unit that determines traveling propriety of a vehicle when the update file is rewritten in the reprogramming slave device. The vehicle device functions as the reprogramming master device, and includes: an obtaining unit that obtains the traveling propriety determined by the determination unit; and a notification command unit that commands a notification medium to notify information of the traveling propriety obtained by the obtaining unit.

公开(公告)号：US20220179641A1

公开(公告)日：2022-06-09

申请号：US17678549

申请日：2022-02-23

Applicant: DENSO CORPORATION

Inventor： Yuzo HARATA ,  Kazuhiro UEHARA

IPC: G06F8/65 ,  G07C5/00 ,  G06F9/445

Abstract: A vehicle master device includes at least one processor that is configured to: download rewrite specification data, reprogramming data, and new configuration setting information from a center device upon determining that there is a campaign notification relating to a program update based on a notification from the center device; determine whether an application program is to be rewritten or configuration setting information is to be rewritten based on the rewrite specification data; instruct a rewrite target ECU to rewrite the application program upon determining that the application program is to be rewritten; and instruct the rewrite ECU to rewrite the configuration setting information upon determining that the configuration setting information is to be rewritten.

公开(公告)号：US20210182049A1

公开(公告)日：2021-06-17

申请号：US17168812

申请日：2021-02-05

Applicant: DENSO CORPORATION

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

IPC: G06F8/65 ,  B60W50/00 ,  B60W50/14

Abstract: In a vehicle program rewrite system, a vehicle master device includes a first progress determination unit that is configured to determine a first progress related to a program rewrite, a first progress transmission unit that is configured to transmit the first progress determined by the first progress determination unit to the center device, a second progress acquisition unit that is configured to acquire a second progress related to the program rewrite from the center device, and a first display instruction unit that is configured to instruct to create a content that is displayable on a display terminal mounted in a vehicle based on the first progress determined by the first progress determination unit and the second progress acquired by the second progress acquisition unit.