Method of judging monitoring condition for diagnosis of engine

Details Method of judging monitoring condition for diagnosis of engine Method of judging monitoring condition for diagnosis of engine

1994-09-06

2000-07-18

Cuchlinski, Jr., William A.

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

701107, 1233391, F02D 4500

Patent

active

06092019&

ABSTRACT:
In order to achieve a correct and efficient diagnosis on an engine, it is important to search a steady state of engine operation correctly and frequently as far as possible. In this invention the steady state operation is judged by checking whether or not the average value of an engine parameter for a predetermined monitoring period is within a predetermined restriction width, whereby so many chances of monitoring for diagnosis can be provided.

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patent: 5237504 (1993-08-01), Holmes et al.
patent: 5297047 (1994-03-01), Matsuno
patent: 5305635 (1994-04-01), James et al.
patent: 5387870 (1995-02-01), Knapp et al.

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