Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Vehicle diagnosis or maintenance indication
Reexamination Certificate
2008-06-06
2011-12-13
Culbreth, Eric (Department: 3616)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Vehicle diagnosis or maintenance indication
C701S033000
Reexamination Certificate
active
08078355
ABSTRACT:
A failure-diagnosis information collection system facilitates failure diagnosis in a vehicle. Electronic control units (ECUs) constituting an onboard network perform abnormality detection processing for a detected abnormality. When a duration during which an abnormality recognizing condition for a detected abnormality is established reaches an abnormality recognition time, abnormality information and a principal time stamp associated with the time point are stored. When the abnormality recognizing condition is established for the first time, a first preliminary time stamp that is time-instant information associated with the time point is stored. When the duration during which the abnormality recognizing condition is established reaches half of the abnormality recognition time, a second preliminary time stamp that is time-instant information associated with the time point is stored. Consequently, an abnormality that is a major factor having triggered other multiple abnormalities can be readily identified based on the first and second preliminary time stamps.
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Culbreth Eric
Denso Corporation
Frisby Keith
Nixon & Vanderhye P.C.
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