公开(公告)号：US20220179643A1

公开(公告)日：2022-06-09

申请号：US17678718

申请日：2022-02-23

Applicant: DENSO CORPORATION

Inventor： Yuzo HARATA ,  Kazuhiro UEHARA

IPC: G06F8/65

Abstract: A vehicle master device is configured to distribute update data received from a center device to a rewrite target electronic control unit (ECU) and to instruct the rewrite target ECU to write the update data. The vehicle master device includes at least one processor programmed to: transmit a software version and a configuration setting information version as configuration information of the rewrite target ECU to the center device; download rewrite specification data from the center device upon determining that there is a campaign notification relating to a program update based on a notification from the center device; and instruct the rewrite target ECU to rewrite configuration setting information by overwriting using new configuration setting information downloaded from the center device upon determining that the configuration setting information is to be rewritten based on the rewrite specification data.

公开(公告)号：US20220012043A1

公开(公告)日：2022-01-13

申请号：US17485576

申请日：2021-09-27

Applicant: DENSO CORPORATION

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

IPC: G06F8/65 ,  H04L9/32 ,  H04L29/08 ,  H04L12/40

Abstract: A vehicle information communication system includes a center apparatus and a vehicle apparatus that includes a group of electronic control units (ECUs) and that sends vehicle configuration information including configuration information on the group of ECUs mounted in the vehicle to the center apparatus via wireless communications. The center apparatus performs a first determination of whether the vehicle configuration information received from the vehicle apparatus matches approved-configuration information registered in an approved-configuration database, and performs a second determination of whether software update data for at least one ECU of the group of ECUs mounted in the vehicle exists in an update database. When both the first and second determinations are true, the center apparatus sends the software update data for at least one ECU of the group of ECUs mounted in the vehicle to the vehicle apparatus via the wireless communications.

公开(公告)号：US20210255805A1

公开(公告)日：2021-08-19

申请号：US17169075

申请日：2021-02-05

Applicant: DENSO CORPORATION

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

IPC: G06F3/06 ,  G07C5/00

Abstract: In a vehicle master device, a first device includes an update data acquisition unit that is configured to acquire update data, an update data distribution unit that is configured to distribute the update data acquired by the update data acquisition unit to a rewrite target ECU, a process execution request unit that is configured to request the second device to execute at least a part of a process related to verification of the update data before the update data distribution unit distributes the update data, a processing result acquisition unit that is configured to acquire a processing result from the second device, and a verification unit that is configured to verify the update data using the processing result acquired by the processing result acquisition unit.

公开(公告)号：US20210167988A1

公开(公告)日：2021-06-03

申请号：US17169932

申请日：2021-02-08

Applicant: DENSO CORPORATION

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

IPC: H04L12/40 ,  B60W20/10

Abstract: A vehicle master device is configured to acquire update data from outside and distribute the acquired update data to a rewrite target electronic control unit (ECU). The vehicle master device includes a distribution frequency specifying unit that is configured to specify a distribution frequency of the update data to the rewrite target ECU based on a correspondence relationship between a predetermined vehicle power supply state and transmission restriction information related to distribution of the update data and a vehicle power supply state during updating, and a distribution control unit that is configured to control distribution of the update data according to the distribution frequency specified by the distribution frequency specifying unit.

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：US20210165585A1

公开(公告)日：2021-06-03

申请号：US17170104

申请日：2021-02-08

Applicant: DENSO CORPORATION

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

IPC: G06F3/06 ,  B60W60/00 ,  B60R16/023

Abstract: An electronic control unit includes an active bank information update unit that is configured to update active bank information indicative of which bank is an active bank between the first data storage bank and the second data storage bank when a program rewrite on the second data storage bank is completed and the vehicle master device gives an instruction for an activation request, an execution condition determination unit that is configured to determine whether an activation execution condition is satisfied, and an execution control unit that is configured to activate the second data storage bank as the active bank based on the active bank information after a restart when the execution condition determination unit determines that the activation execution condition is satisfied.

公开(公告)号：US20210160064A1

公开(公告)日：2021-05-27

申请号：US17166840

申请日：2021-02-03

Applicant: DENSO CORPORATION

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

IPC: H04L9/08

Abstract: A vehicle master device includes a decryption key storage unit that cannot be read from an outside and that stores a decryption key for generation of a security accesses key used to perform device authentication of a rewrite target electronic control unit. The vehicle master device acquires rewrite specification data from an outside, analyzes the rewrite specification data acquired, extracts a key derivation value corresponding to the rewrite target electronic control unit from an analysis result of the rewrite specification data, and by using the decryption key corresponding to the rewrite target electronic control unit stored in the decryption key storage unit, decrypts the key derivation value extracted, and generate a security accesses key.

公开(公告)号：US20210157571A1

公开(公告)日：2021-05-27

申请号：US17166729

申请日：2021-02-03

Applicant: DENSO CORPORATION

Inventor： Tomoya OGAWA ,  Taiji ABE ,  Yuzo HARATA ,  Kazuhiro UEHARA ,  Takuya HASEGAWA ,  Takuya KAWASAKI ,  Kazuaki HAYAKAWA

IPC: G06F8/654 ,  B60R16/023 ,  G06F9/445

Abstract: A center device is provided that manages data to be written to electronic control units mounted on a vehicle. The center device includes an update data storage unit that stores update data for a data update target device among the electronic control units. The center device distributes the update data to the vehicle. The center device includes an individual vehicle configuration information storage unit that stores identification information of target vehicles targeted for update using the update data, and update status information regarding update completion status and update-in-progress status acquired as update status from target vehicles. The center device manages the update status information of the target vehicles in a statistically tabulatable manner on basis of the update status information.

公开(公告)号：US20210157568A1

公开(公告)日：2021-05-27

申请号：US17166891

申请日：2021-02-03

Applicant: DENSO CORPORATION

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

IPC: G06F8/65 ,  B60R16/023

Abstract: A center device manages data to be written into electronic control units mounted on a vehicle and includes an update data storage storing update data for a target device being a target of data update among the electronic control units, a vehicle information storage storing, together with type of the vehicle, vehicle related information, and a device related information storage storing update data related information. Based on information stored in the device related information storage and the vehicle information storage, the center device generates specification data including device type, attribute, the update data related information of the target device, and information indicating rewrite environment related to the data update of the target device, and generates a distribution package including the update data and the specification data.

公开(公告)号：US20210155176A1

公开(公告)日：2021-05-27

申请号：US17167702

申请日：2021-02-04

Applicant: DENSO CORPORATION

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

IPC: B60R16/023 ,  B60R16/03 ,  G06F8/654 ,  B60W60/00

Abstract: In a vehicle electronic control system, a vehicle master device includes a vehicle power determination unit that is configured to determine a vehicle power is on, a rewrite-in-progress determination unit that is configured to determine whether rewriting of a program is in progress, a first self-retention power determination unit that is configured to determine whether it is necessary to self-retain power in the vehicle slave device when the vehicle power determination unit determines that the vehicle power is off and when the rewrite-in-progress determination unit determines that rewriting of the program is in progress, and a self-retention power instruction unit that is configured to instruct the vehicle slave device to enable the first self-retention power circuit when the first self-retention power determination unit determines that it is necessary to self-retain the power in the vehicle slave device. The vehicle slave device is configured to enable the first self-retention power circuit when the vehicle master device instructs to enable the first self-retention power circuit.