公开(公告)号：US20140277925A1

公开(公告)日：2014-09-18

申请号：US14288473

申请日：2014-05-28

Applicant: DENSO CORPORATION

Inventor： Masahiko TANAKA ,  Mitsuyoshi NATSUME ,  Yasuyuki TAKAHASHI ,  Yuzo HARATA

IPC: B60W50/04

CPC classification number: B60W50/04 ,  H04L12/40091 ,  H04L2012/40273

Abstract: A vehicular system includes a master ECU, a first slave ECU, and a second slave ECU. The second slave ECU transmits a storing request to the master ECU on detection of a malfunction. The master ECU transmits a storing instruction for causing diagnostic information to be stored, on reception of the storing request. The first slave ECU generates diagnostic information on the first slave ECU, on reception of the storing instruction from the master ECU. The first slave ECU further stores the generated diagnostic information in a retention storage medium. The retention storage medium is configured to retain validity determination information in a condition where the first slave ECU is not supplied with electric power source.

Abstract translation: 车辆系统包括主ECU，第一从ECU和第二从ECU。 第二副ECU在检测到故障时向主ECU发送存储请求。 在接收到存储请求时，主ECU发送用于使得要存储的诊断信息的存储指令。 第一从ECU在从主ECU接收到存储指令时，在第一从ECU上产生诊断信息。 第一从ECU还将生成的诊断信息存储在保持存储介质中。 保持存储介质被配置为在第一从ECU未被供电的状态下保持有效性判定信息。

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：US20160318522A1

公开(公告)日：2016-11-03

申请号：US15209787

申请日：2016-07-14

Applicant: DENSO CORPORATION

Inventor： Masahiko TANAKA ,  Mitsuyoshi NATSUME ,  Yasuyuki TAKAHASHI ,  Yuzo HARATA

IPC: B60W50/04 ,  H04L12/40

CPC classification number: B60W50/04 ,  H04L12/40091 ,  H04L2012/40273

Abstract: A vehicular system includes a master ECU, a first slave ECU, and a second slave ECU. The second slave ECU transmits a storing request to the master ECU on detection of a malfunction. The master ECU transmits a storing instruction for causing diagnostic information to be stored, on reception of the storing request. The first slave ECU generates diagnostic information on the first slave ECU, on reception of the storing instruction from the master ECU. The first slave ECU further stores the generated diagnostic information in a retention storage medium. The retention storage medium is configured to retain validity determination information in a condition where the first slave ECU is not supplied with electric power source.

Abstract translation: 车辆系统包括主ECU，第一从ECU和第二从ECU。 第二副ECU在检测到故障时向主ECU发送存储请求。 在接收到存储请求时，主ECU发送用于使得要存储的诊断信息的存储指令。 第一从ECU在从主ECU接收到存储指令时，在第一从ECU上产生诊断信息。 第一从ECU还将生成的诊断信息存储在保持存储介质中。 保持存储介质被配置为在第一从ECU未被供电的状态下保持有效性判定信息。