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：US20240111519A1

公开(公告)日：2024-04-04

申请号：US18537350

申请日：2023-12-12

Applicant: DENSO CORPORATION

Inventor： Koto TOMATSU ,  Hideo YOSHIMI ,  Masaaki ABE

IPC: G06F8/654 ,  H04L9/32

CPC classification number: G06F8/654 ,  H04L9/3239 ,  H04L2209/80 ,  H04L2209/84

Abstract: An onboard communication system includes a center device that transmits update data as a distribution package by a streaming manner to an electronic control unit installed in a vehicle, a master device that is installed in the vehicle and receives the distribution package and transfer the update data to the electronic control unit, and the electronic control unit that writes the update data transferred from the master device to a storage unit. The center device also transmits a hash value calculated for the update data to the master device. The electronic control unit calculates a hash value for the update data and transmits the hash value to the master device. The master device compares the hash value transmitted from the center device with the hash value transmitted from the electronic control unit to verify integrity of the update data.

公开(公告)号：US20240256259A1

公开(公告)日：2024-08-01

申请号：US18617974

申请日：2024-03-27

Applicant: DENSO CORPORATION

Inventor： Hideo YOSHIMI ,  Masaki ABE ,  Koto TOMATSU

IPC: G06F8/65 ,  H04L9/14 ,  H04L9/40

CPC classification number: G06F8/65 ,  H04L9/14 ,  H04L63/166

Abstract: A data communication system includes a center device that places update data in a content delivery network (CDN); and a master device that installs the update data downloaded from the CDN in an electronic control unit to be reprogrammed. The center device is connected to CDNs of a plurality of business operators, selects a CDN with a superior distribution cost from the CDNs of the plurality of business operators according to at least one of a distribution method, a distribution area, a communication protocol, and a distribution data size, and places the update data in the selected CDN without encrypting the update data. The master device establishes transport layer security (TLS) with the CDN, and then downloads the update data from the CDN.

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：US20240394041A1

公开(公告)日：2024-11-28

申请号：US18795045

申请日：2024-08-05

Applicant: DENSO CORPORATION

Inventor： Masaaki ABE ,  Hideo YOSHIMI ,  Koto TOMATSU

IPC: G06F8/65

Abstract: A center device manages data to be written to a plurality of electronic control devices installed in a vehicle. The center device is configured to generate a package including update data to be distributed to the vehicle; and distribute the package to the vehicle. When an input of information on a master device to which a package is to be distributed is received, the center device identifies an ID corresponding to the master device with reference to a logic ID management registration section on a basis of the information, acquires logic corresponding to the ID from a logic management registration section, and generates a package on a basis of the logic.

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：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.