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.

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：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：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：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.

公开(公告)号：US20210141631A1

公开(公告)日：2021-05-13

申请号：US17153341

申请日：2021-01-20

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.

公开(公告)号：US20190287626A1

公开(公告)日：2019-09-19

申请号：US16318386

申请日：2017-06-01

Applicant: DENSO CORPORATION

Inventor： Takuya KAWASAKI ,  Sho NAKAMURA ,  Yuzo HARATA ,  Kazuhiro UEHARA ,  Mitsuyoshi NATSUME ,  Kazuaki HAYAKAWA

IPC: G11C16/16 ,  G06F11/10

Abstract: A data overwriting device includes an overwriting unit that overwrites a part of data stored in a memory, the part in which a difference is generated; a first writing unit that writes first information in a first storage unit when a data overwriting process is completed by the overwriting unit; a second writing unit that writes second information in a second storage unit when confirming that the part of the data overwritten by the overwriting unit includes no error; and a deleting unit that clears the first storage unit storing the first information and the second storage unit storing the second information before the overwriting unit starts executing the data overwriting process.

公开(公告)号：US20140068590A1

公开(公告)日：2014-03-06

申请号：US14073898

申请日：2013-11-07

Applicant: Denso Corporation

Inventor： Mitsuyoshi NATSUME

IPC: G06F9/445 ,  G06F11/14

CPC classification number: G06F8/65 ,  G06F11/1433 ,  Y02D10/42

Abstract: In an ECU, a flash ROM has a main storage area for storing a current version of an application program and a sub-storage area for storing update version program that includes updated points from the current version program. A rewriting tool executes program rewrite processing including: store processing of storing the update version program in the sub-storage area; and memory changeover processing in which, when the writing of the update version program in the sub-storage area has been done successfully, the sub-storage area where the storing of the update version program has ended is changed over to a new main storage area instead of a memory area currently being used as the main storage area. When the writing in the sub-storage area has failed, the changeover is not conducted.

Abstract translation: 在ECU中，闪存ROM具有用于存储当前版本的应用程序的主存储区域和用于存储包括来自当前版本程序的更新点的更新版本程序的子存储区域。 重写工具执行程序重写处理，包括：将更新版本程序存储在子存储区域中的存储处理; 以及存储器切换处理，其中当子存储区域中的更新版本程序的写入已经成功地完成时，更新版本程序的存储已经结束的子存储区域被转换到新的主存储区域 而不是当前用作主存储区域的存储区域。 当子存储区域中的写入失败时，不进行切换。

公开(公告)号：US20130219170A1

公开(公告)日：2013-08-22

申请号：US13771696

申请日：2013-02-20

Applicant: DENSO CORPORATION

Inventor： Hideto NAITOU ,  Mitsuyoshi NATSUME ,  Yuzo HARATA ,  Shouichirou HANAI

IPC: H04L29/06

CPC classification number: G06F21/85 ,  H04L12/6418 ,  H04L63/0428 ,  H04L63/0471 ,  H04L63/08 ,  H04L67/12

Abstract: A vehicular data communication system is disclosed. The vehicular data communication system includes an authentication device for authenticating an external tool connected to a bus, an authentication control device for determining whether an external tool is authenticated by the authentication device and for setting an authenticated state to permit a data communication between the external tool and an access target ECU on the bus upon determining that the external tool is authenticated by the authentication device, and an authentication maintain device for maintaining the authenticated state within a predetermined period after the authenticated state is set by the authentication control device.

Abstract translation: 公开了一种车辆数据通信系统。 车辆数据通信系统包括用于认证连接到总线的外部工具的认证装置，用于确定外部工具是否被认证装置认证并且用于设置认证状态以允许外部工具之间的数据通信的认证控制装置 以及在通过所述认证装置确认所述外部工具认证的情况下，在所述总线上的接入对象ECU以及在所述认证控制装置设定认证状态之后的预定时间段内将所述认证状态保持的认证维护装置。