Diagnostic tool for sensing oxygen sensor heater operation

Details Diagnostic tool for sensing oxygen sensor heater operation Diagnostic tool for sensing oxygen sensor heater operation

2007-07-25

2009-12-15

Kwon, John T (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C701S109000, C073S114010

Reexamination Certificate

active

07634351

ABSTRACT:
A diagnostic testing system for a vehicle comprising an oxygen sensor having a heating element for heating the oxygen sensor to its minimum operational temperature, an analyzer having a user interface, a communications link between the analyzer and the vehicle to obtain data from the oxygen sensor, and a diagnostic heuristic analyzing the data and confirming proper operation of the heating element, the diagnostic heuristic being adapted to generate an output and transmit the output to the user interface, the output including the results generated by analysis of the data by the diagnostic heuristic.

REFERENCES:
patent: 5421981 (1995-06-01), Leader et al.
patent: 6694243 (2004-02-01), Shi et al.
patent: 6947817 (2005-09-01), Diem
patent: 7278414 (2007-10-01), Diem
patent: 2005/0096806 (2005-05-01), Diem

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