公开(公告)号：US20210165649A1

公开(公告)日：2021-06-03

申请号：US17170222

申请日：2021-02-08

Applicant: DENSO CORPORATION

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

IPC: G06F8/654 ,  H04W4/44 ,  G06F3/06 ,  B60W50/00

Abstract: An electronic control unit includes a first process flag setting unit that is configured to set a first process flag indicative of a progress of a first process that is one of a series of processes related to a program rewrite, a second process flag setting unit that is configured to set a second process flag indicative of a progress of a second process that is an other of the series of processes related to the program rewrite, and a retry point specifying unit that is configured to specify, based on the first process flag and the second process flag, a retry point for resuming the program rewrite when the program rewrite is suspended. The retry point specifying unit is further configured to store an amount of the update data that has been written until the program rewrite was suspended and request the vehicle master device to transfer the update data based on the stored amount of the update data when resuming the program rewrite.

公开(公告)号：US20210157902A1

公开(公告)日：2021-05-27

申请号：US17167342

申请日：2021-02-04

Applicant: DENSO CORPORATION

Inventor： Nao SAKURAI ,  Shuhei TAKAHASHI ,  Yuzo HARATA ,  Kazuhiro UEHARA ,  Takuya HASEGAWA ,  Takuya KAWASAKI ,  Kazuaki HAYAKAWA

IPC: G06F21/51 ,  G06F8/65 ,  B60R16/023 ,  G06F21/44

Abstract: A vehicle information communication system including a center device and an in-vehicle device is provided. When pieces of configuration information regarding configurations of respective devices are received from electronic control units, the in-vehicle device transmits a configuration information list including the pieces of configuration information to the center device. The center device includes a configuration information storage unit storing the configuration information list approved with respect a vehicle type, compares the configuration information list received from the in-vehicle device with the configuration information list stored in the configuration information storage unit. When the center device determines that the configuration information list received from the in-vehicle device is disapproved, the center device transmits a presence of abnormality to the in-vehicle device.

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：US20150301822A1

公开(公告)日：2015-10-22

申请号：US14646097

申请日：2013-11-05

Applicant: DENSO CORPORATION

Inventor： Yasuyuki TAKAHASHI ,  Yuzo HARATA ,  Takao MORI ,  Masaya OHI

IPC: G06F9/445 ,  B60R16/023

CPC classification number: G06F8/665 ,  B60R16/023 ,  G06F8/654 ,  G06F9/445 ,  G06F11/30 ,  G06F13/00 ,  Y02D10/42

Abstract: A gateway ECU includes an update condition table that indicates a vehicle load state capable of updating an ECU program corresponding to each of several ECUs. The gateway ECU wirelessly communicates with an external center apparatus to receive an update file. The gateway ECU uses the update condition table to determine whether the current vehicle load state equals a lightly loaded state capable of updating an ECU program or a heavily loaded state incapable of updating an ECU program. If the current vehicle load state is determined to equal the lightly loaded state, the gateway ECU updates an ECU program using the update file received from the center apparatus. If the current vehicle load state is determined to equal the heavily loaded state, the gateway ECU performs environment improvement control based on the update condition table to change the current vehicle load state to the lightly loaded state.

Abstract translation: 网关ECU包括指示能够更新与几个ECU中的每一个对应的ECU程序的车辆负载状态的更新条件表。 网关ECU与外部中心设备无线通信以接收更新文件。 网关ECU使用更新条件表来确定当前车辆负载状态是否等于能够更新ECU程序的轻负载状态或不能更新ECU程序的重载状态。 如果当前车辆负载状态被确定为等于轻载状态，则网关ECU使用从中心设备接收的更新文件来更新ECU程序。 如果当前车辆负载状态被确定为等于重负载状态，则网关ECU基于更新条件表执行环境改善控制，以将当前车辆负载状态改变为轻负载状态。

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.