公开(公告)号：US20240272896A1

公开(公告)日：2024-08-15

申请号：US18645001

申请日：2024-04-24

Applicant: DENSO CORPORATION

Inventor： Hideo YOSHIMI ,  Yuzo HARATA ,  Nao KOJIMA ,  Masaaki ABE ,  Koto TOMATSU ,  Kazuhiro UEHARA

IPC: G06F8/65 ,  G06F3/06 ,  G07C5/08 ,  H04W4/40

CPC classification number: G06F8/65 ,  G06F3/0604 ,  G07C5/085 ,  H04W4/40

Abstract: A center device manages data to be written in an electronic control device mounted on a vehicle and performs, by an application program, a plurality of functions to transmit update data to the vehicle by wireless communication. 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 allocated to the application program is released when the execution of the code is terminated.

公开(公告)号：US20220284743A1

公开(公告)日：2022-09-08

申请号：US17666618

申请日：2022-02-08

Applicant: DENSO CORPORATION

Inventor： Hideo YOSHIMI ,  Masaaki ABE

IPC: G07C5/00 ,  G07C5/08 ,  G06F16/23

Abstract: A center device includes an individual vehicle information DB which stores device identity information and information regarding a software architecture of the relevant device together with a vehicle category for each of a plurality of ECUs. In a PKG structure DB, for each of the plurality of ECUs, information regarding a structure of a package to be distributed for data update is stored according to a type of each of the ECUs. Based on the information stored in the individual vehicle information DB and the PKG structure DB, a determination unit identifies a package to be distributed for a target vehicle having a target device whose data is updated among the plurality of ECUs, and a PKG generation unit generates a package including the information indicating the structure of the identified package.

公开(公告)号：US20210165644A1

公开(公告)日：2021-06-03

申请号：US17170251

申请日：2021-02-08

Applicant: DENSO CORPORATION

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

IPC: G06F8/41 ,  G06F8/61 ,  B60R16/023 ,  G06F9/38

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 group generation unit that is configured to divide the plurality of rewrite target ECUs to generate a plurality of groups based on the rewrite specification data analyzed by the rewrite specification data analysis unit, and an instruction execution unit that is configured to instruct the plurality of rewrite target ECUs for each group of the plurality of groups generated by the group generation unit to perform at least one of installation, rollback, and activation.

公开(公告)号：US20240385826A1

公开(公告)日：2024-11-21

申请号：US18788604

申请日：2024-07-30

Applicant: DENSO CORPORATION

Inventor： Masaaki ABE ,  Hideo YOSHIMI ,  Koto TOMATSU

IPC: G06F8/65 ,  B60R16/023

Abstract: A center device that manages data to be written to a plurality of electronic control devices installed in a vehicle is configured to generate a package including update data to be distributed to the vehicle, and register identification information assigned to logic for generating the package in accordance with a specification of a master device that is installed in the vehicle, receives a package distributed from a center device and transfers update data to the electronic control device. The logic is registered. A manifest file having a description of the identification information is registered.

公开(公告)号：US20240267221A1

公开(公告)日：2024-08-08

申请号：US18618840

申请日：2024-03-27

Applicant: DENSO CORPORATION

Inventor： Hideo YOSHIMI ,  Masaaki ABE ,  Koto TOMATSU

IPC: H04L9/30 ,  H04L9/06 ,  H04L9/08

CPC classification number: H04L9/302 ,  H04L9/0631 ,  H04L9/0637 ,  H04L9/0825

Abstract: A data communication system includes a center device that distributes update data to a master device, and a master device that installs the update data downloaded from the center device in an electronic control unit to be reprogrammed. The center device generates a common key for encrypting the update data; encrypts the update data with the common key; encrypts the common key; stores the common key encrypted in a campaign notification; places the update data encrypted with the common key in a content delivery network (CDN); and transmits the campaign notification. The master device acquires the common key from the campaign notification; decrypts the encrypted common key to extract the common key; downloads and acquires encrypted update data from the CDN; performs an exclusive OR operation; and transfers the decrypted update data to the electronic control unit, and installs the update data in the electronic control unit.

公开(公告)号：US20240267207A1

公开(公告)日：2024-08-08

申请号：US18618188

申请日：2024-03-27

Applicant: DENSO CORPORATION

Inventor： Hideo YOSHIMI ,  Masaaki ABE ,  Koto TOMATSU

IPC: H04L9/08 ,  H04L9/32

CPC classification number: H04L9/0841 ,  H04L9/3249 ,  H04L9/3252

Abstract: A data communication system includes a center device that distributes update data to a master device, and a master device that installs the update data in an electronic control unit to be reprogrammed. The center device and the master device exchange random secret information using an algorithm of a Diffie-Hellman key exchange (DHE) or an Elliptic curve Diffie-Hellman key exchange (ECDHE) for key distribution. The center device encrypts an encryption key for encrypting update data based on the exchanged secret information, stores the encrypted encryption key in a campaign notification, places the update data encrypted with the encryption key in a content delivery network, and transmits the campaign notification storing the encrypted encryption key to a vehicle system.

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：US20240119763A1

公开(公告)日：2024-04-11

申请号：US18389895

申请日：2023-12-20

Applicant: DENSO CORPORATION

Inventor： Koto TOMATSU ,  Hideo YOSHIMI ,  Masaaki ABE

IPC: G07C5/00

CPC classification number: G07C5/008

Abstract: An in-vehicle communication system includes a center device that transmits update data to a target device as an electronic control unit installed in a vehicle, a master device that is installed in the vehicle, receives the update data as a distribution package, and transfers the update data to the target device, and the target device that writes the update data transferred from the master device into a storage portion. The center device transmits reprogramming policy metadata to the master device. The master device requests the center device for download metadata. The master device interprets the download metadata, acquires necessary data, and perform data update control of the target device.

公开(公告)号：US20220342660A1

公开(公告)日：2022-10-27

申请号：US17723520

申请日：2022-04-19

Applicant: DENSO CORPORATION

Inventor： Masaaki ABE ,  Hideo YOSHIMI

IPC: G06F8/658 ,  B60W50/00 ,  G06F21/64

Abstract: A center device includes a vehicle information storage unit, a hash value generation unit, and a package generation unit. The vehicle information storage unit stores identification information for electronic control devices mounted in a vehicle and information of software architecture of the electronic control devices together with a type of the vehicle. The hash value generation unit is configured to generate difference data, calculate a hash value of the difference data, and store the calculated hash value in a hash value storage unit, for each electronic control device that is an update target. The package generation unit is configured to generate distribution package for the update target using corresponding hash value stored in the hash value storage unit.

公开(公告)号：US20220253301A1

公开(公告)日：2022-08-11

申请号：US17731569

申请日：2022-04-28

Applicant: DENSO CORPORATION

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

IPC: G06F8/65 ,  G06F21/57

Abstract: An electronic control system for vehicle includes a center device that manages a program update of a vehicle, and a vehicular master device that is communicable with the center device. The center device, responsive to a user giving approval for program update by using a device not being a possession owned by the user, receives approval information of the user, and stores and manages the approval information in association with vehicle information of the user. The center device transmits the approval information to the user's vehicle side. When the vehicular master device receives the approval information, the vehicular master device performs rewriting of the program.