Method and device for diagnosis for vehicle
    1.
    发明授权
    Method and device for diagnosis for vehicle 有权
    车辆诊断方法和装置

    公开(公告)号:US06314375B1

    公开(公告)日:2001-11-06

    申请号:US09147143

    申请日:1998-10-16

    IPC分类号: G01B344

    CPC分类号: G01M15/05

    摘要: A method and device for diagnosing a vehicle, in which a forced activation signal Sx is supplied to a diagnostic target part through an ECU. A current state of the detected diagnostic target part is compared with a state predicted when the forced activation signal Sx is given to diagnose the diagnostic target part. The forced activation signal Sx when the diagnostic target part is judged to be good, or after a predetermined time has elapsed since issue of the signal Sx was initiated.

    摘要翻译: 一种用于诊断车辆的方法和装置,其中通过ECU将强制激活信号Sx提供给诊断目标部分。 将检测到的诊断对象部分的当前状态与施加强制激活信号Sx时所预测的状态进行比较,以诊断诊断对象部分。 判定诊断对象部分判定为良好时,或者从发出信号Sx开始经过规定时间后的强制激活信号Sx。

    Method and apparatus for diagnosing a vehicle
    2.
    发明授权
    Method and apparatus for diagnosing a vehicle 失效
    用于诊断车辆的方法和装置

    公开(公告)号:US6006146A

    公开(公告)日:1999-12-21

    申请号:US860570

    申请日:1997-06-30

    IPC分类号: G01M17/007 G06F7/00

    CPC分类号: G01M17/007

    摘要: There is provided vehicle diagnostic method and apparatus capable of reducing restrictions on the sequence and timing of operations to be performed by an operator for each diagnostic item.In the vehicle diagnostic apparatus, the actual vehicle state detected by the vehicle state detection apparatus 223 is compared with the expected state selected by the selection apparatus 222. For example, while the operator runs the vehicle on purpose to execute the "Vehicle Sensor Diagnosis", if an actual state (vehicle speed VS) is detected by the vehicle state detection apparatus 223, an expected state of the vehicle speed (reference vehicle speed VSref) will be selected by the selection apparatus 222. Then both states are compared by the comparison apparatus 224. When both states are identified as exhibiting an expected relation (e.g., correspondence), the comparison apparatus 224 makes the display 27 indicate that the diagnostic item 1 is passed. Specifically, the indication of "01" is erased from the display 27.

    摘要翻译: PCT No.PCT / JP97 / 00248 Sec。 371日期:1997年6月30日 102(e)日期1997年6月30日PCT 1997年1月31日PCT PCT。 出版物WO97 / 29352 日期1997年8月14日提供了能够减少操作人员针对每个诊断项目执行的操作的顺序和时间的限制的车辆诊断方法和装置。 在车辆诊断装置中,将由车辆状态检测装置223检测出的实际车辆状态与由选择装置222选择的预期状态进行比较。例如,当操作者为了执行“车辆传感器诊断”而运行车辆时, 如果由车辆状态检测装置223检测到实际状态(车速VS),则选择装置222将选择车速(基准车速VSref)的预期状态。然后通过比较对两个状态进行比较 设备224.当两个状态被识别为呈现期望的关系(例如,对应关系)时,比较装置224使显示器27指示诊断项目1通过。 具体地,从显示器27擦除“01”的指示。

    Method and device for diagnosis for vehicle
    3.
    发明授权
    Method and device for diagnosis for vehicle 失效
    车辆诊断方法和装置

    公开(公告)号:US6134488A

    公开(公告)日:2000-10-17

    申请号:US147144

    申请日:1998-10-16

    摘要: Forced activation signal supplier 550 supplies a forced activation signal Sx to a diagnostic target part 101 related to a diagnostic item requiring a forced activation signal. Vehicle-state detector 552 detects a current state of the diagnostic target part 101 through an ECU 1. Diagnostic element 553 compares the currently detected state of the diagnostic target part 101 with a state predicted when the forced activation signal Sx is given to diagnose the diagnostic target part 101. When the forced activation signal Sx is supplied to the part of the vehicle, self-diagnosis stopping element 554 gives an instruction to stop a self diagnosis for at least an item the diagnostic result of which may vary under the influence of the forced activation signal Sx, or to invalidate the diagnostic result.

    摘要翻译: PCT No.PCT / JP98 / 00975 Sec。 371日期:1998年10月16日 102(e)1998年10月16日PCT PCT 1998年3月10日PCT公布。 出版物WO98 / 40715 PCT 日期1998年9月17日强制激活信号供应商550将强制激活信号Sx提供给与需要强制激活信号的诊断项相关的诊断目标部分101。 车辆状态检测器552通过ECU1检测诊断对象部101的当前状态。诊断部件553将当前检测到的诊断对象部101的状态与给出强制激活信号Sx时的状态进行比较,诊断诊断 目标部分101.当强制激活信号Sx被提供给车辆的一部分时,自诊断停止元件554给出停止对诊断结果可能在 强制激活信号Sx,或使诊断结果无效。