Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – With indicator or control of power plant
Patent
1996-09-04
1998-06-09
Dombroske, George M.
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
With indicator or control of power plant
701107, 701112, 731181, G01M 1500
Patent
active
057651213
ABSTRACT:
An onboard diagnostic mechanism for a sealed vehicle fuel delivery system. By controlling fuel system valves, the electronic engine controller (EEC) periodically subjects the sealed system to an initial vacuum level, then monitors the pressure increase due to evaporative effects during a predetermined test interval. Excessive deviations in measured pressure compared to predetermined criteria produce indications of potential undesired operational conditions. To prevent fuel sloshing which results from aggressive driving or rough roads from producing false output indications, the instantaneous system pressure is compared with a rolling average of tank pressure to produce a difference signal indicative of fuel sloshing. If the resulting difference signal exceeds a predetermined threshold, the monitoring process is aborted in favor of a later test after the fuel sloshing condition terminates.
REFERENCES:
patent: 5463998 (1995-11-01), Denz et al.
patent: 5467641 (1995-11-01), Williams et al.
patent: 5490414 (1996-02-01), Durschmidt et al.
patent: 5495749 (1996-03-01), Dawson et al.
patent: 5526675 (1996-06-01), Ratton
patent: 5560346 (1996-10-01), Isobe et al.
patent: 5606121 (1997-02-01), Blomquist et al.
patent: 5614665 (1997-03-01), Curran et al.
patent: 5616836 (1997-04-01), Blomquist et al.
patent: 5629477 (1997-05-01), Ito
Curran Patrick Joseph
Schwager Bryce Andrew
Dombroske George M.
Ford Global Technologies Inc.
Lippa Allan J.
May Roger L.
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