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    • 2. 发明专利
    • Vehicle diagnostic system
    • 车辆诊断系统
    • JP2006177969A
    • 2006-07-06
    • JP2006003014
    • 2006-01-10
    • Denso Corp株式会社デンソー
    • KAMIYA KENJIKAWABATA NORICHIKAMATSUURA YUICHIROFURUSAWA KENZO
    • G01M17/007H04Q9/00
    • PROBLEM TO BE SOLVED: To provide a vehicle diagnostic system, capable of readily responding to the OBDIII through the use of the conventional OBDII system, and moreover, responding also the OBDII, as conventionally.
      SOLUTION: The vehicle diagnostic system 1 is equipped with an engine ECU 2, a K line 3 connected to the engine ECU 2, a transponder 4 connected to the K line 3, and a connector 32, connected with K line 3, capable of detachably threading an external scanning tool 6 retrieving diagonal information. The transponder 4 receives demand from a receiver system 5 by radio, retrieves diagonal information retrieved from the engine ECU, in response to the demand concerned from a first built-in memory 44, and transmits the data retrieved to a receiver system 5 by radio. This vehicle diagnostic system 1 can readily respond to the OBDIII, by merely adding the transponder 4 to the OBDII system.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供能够通过使用常规OBDII系统容易地响应OBDIII的车辆诊断系统,此外,还如常规地响应OBDII。 解决方案:车辆诊断系统1配备有发动机ECU2,连接到发动机ECU2的K线3,连接到K线3的应答器4和与K线3连接的连接器32, 能够可拆卸地穿过检索对角线信息的外部扫描工具6。 应答器4通过无线电接收来自接收机系统5的需求,响应于来自第一内置存储器44的需求,检索从发动机ECU检索的对角线信息,并通过无线电发送检索到接收机系统5的数据。 该车辆诊断系统1可以通过仅将OBDII系统中的应答器4添加到OBDIII来容易地响应。 版权所有(C)2006,JPO&NCIPI
    • 3. 发明专利
    • Fault diagnosis system and electronic control device
    • 故障诊断系统和电子控制装置
    • JP2003084998A
    • 2003-03-20
    • JP2001276706
    • 2001-09-12
    • Denso Corp株式会社デンソー
    • KAMIYA KENJI
    • G01M17/007B60S5/00G01M17/00G05B23/02G06F11/22G07C5/00
    • G07C5/008
    • PROBLEM TO BE SOLVED: To facilitate the specification of a fault point by easily collecting vehicle driving information for specifying the fault point without any knowledge of a diagnosis program. SOLUTION: Function change information for storing prescribed vehicle data at a prescribed timing are prepared in a center beforehand corresponding to fault information. A terminal device transmits the fault information to the center (S600) and, when receiving analysis information including the corresponding function change information (S610: YES), it requests the item code of a control program including a diagnosis program to an ECU (S630) and obtains a data assign table from the center (S640 and S650). The terminal device converts the function change information according to the control program using the data assign table (S660) and transmits the function change information to the ECU (S670). The ECU stores the function change information in a table form and the diagnosis program stores the vehicle data based on the function change information.
    • 要解决的问题:通过在不知道诊断程序的情况下容易地收集用于指定故障点的车辆驾驶信息来促进故障点的指定。 解决方案:预先对应于故障信息的中心准备用于在规定时刻存储规定车辆数据的功能变更信息。 终端设备将故障信息发送到中心(S600),并且当接收到包括相应的功能改变信息的分析信息(S610:是)时,向ECU请求包括诊断程序的控制程序的项目代码(S630) 并从中心获取数据分配表(S640和S650)。 终端装置使用数据分配表根据控制程序转换功能改变信息(S660),并将功能改变信息发送到ECU(S670)。 ECU将功能改变信息存储在表格形式中,并且诊断程序基于功能改变信息存储车辆数据。
    • 7. 发明专利
    • METHOD FOR INSPECTING ON-VEHICLE CONTROL UNIT
    • JP2001202266A
    • 2001-07-27
    • JP2000012803
    • 2000-01-21
    • DENSO CORP
    • NAKAYAMA KIYONARIKAMIYA KENJIAOKI CHIZURU
    • G06F11/22G06F11/00
    • PROBLEM TO BE SOLVED: To rightly inspect an on-vehicle control unit and to prevent illegal alteration as the result. SOLUTION: An ECU 10 is provided with a widely known microcomputer 11, which is provided with a CPU 12 forming the center of various kinds of control, a flash memory 13 which can be erased and written electrically, and the other input/output circuit, etc., not shown in the figure. An external tool 20 is also provided with a widely known microcomputer 11 consisting of a CPU, a memory, an input/output circuit, etc. On judging (inspecting) the authenticity of the ECU 10, the tool 20 first transmits transmission data including a sum value calculation command and a random number to the ECU 10. The ECU 10 calculates the sum value of data in the memory 13 and enciphers the sum value in accordance with the random number by using a prescribed enciphering algorithm. After then, the enciphered sum value is transmitted to the tool 20, which compares and judges a decoded sum value and a previously registered true sum value to judge whether the ECU 10 is normal or abnormal by the result of it.