Vehicles fault diagnostic systems and methods

Details Vehicles fault diagnostic systems and methods Vehicles fault diagnostic systems and methods

2007-07-03

2007-07-03

Nguyen, Thu V. (Department: 3661)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Vehicle diagnosis or maintenance indication

Reexamination Certificate

active

10972854

ABSTRACT:
A method for diagnosis of a vehicle includes monitoring a first plurality of distributed sensor signals input to a first control unit, monitoring a second plurality of distributed sensor signals input to a second control unit, determining a first diagnostic trouble code (first DTC) at a first instant of time, determining a second DTC at a second instant of time, storing a first dataset in a first storage media and storing the second DTC in the first dataset. The second instant of time is within a predetermined time of the first instant of time. The first dataset corresponds to the first instant in time, and the stored first dataset is transferred to a remote fault-diagnostic module at a later instant of time. The first dataset includes the first DTC, a predetermined first group of sensor signals associated with either the first or second control unit, and the second DTC.

REFERENCES:
patent: 6842676 (2005-01-01), Rodriguez
patent: 2003/0050747 (2003-03-01), Kamiya
patent: 2004/0204816 (2004-10-01), Dery

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