Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – With indicator or control of power plant
Reexamination Certificate
2005-02-01
2005-02-01
Vo, Hieu T. (Department: 3747)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
With indicator or control of power plant
C123S674000
Reexamination Certificate
active
06850832
ABSTRACT:
A schedule (164, 166) correlates data values of closed-loop gain (KP, KI) with engine temperature values (EOT) and engine speed values (N). A control strategy develops a data value (ICPC_DES) representing desired injector control pressure (ICP) set-point, processes ICPC_DES and a data value (ICP_MPA) representing actual ICP to develop ICP error data value (ICP_ERR) for closed-loop P-I control (160, 162) of actual ICP. Data values for closed-loop proportional and integral gains are obtained from the schedule based on measured engine temperature and measured engine speed. ICP become less subject to undesirable fluctuations that might otherwise change fuel injection quantity in ways detrimental to attainment of desired tailpipe emission objectives.
REFERENCES:
patent: 5191867 (1993-03-01), Glassey
patent: 5460329 (1995-10-01), Sturman
patent: 5485820 (1996-01-01), Iwaszkiewicz
patent: 5597118 (1997-01-01), Carter, Jr. et al.
patent: 5722373 (1998-03-01), Paul et al.
patent: 5740045 (1998-04-01), Livshiz et al.
patent: 5771861 (1998-06-01), Musser et al.
patent: 6029628 (2000-02-01), Oleksiewicz et al.
patent: 6378501 (2002-04-01), Hisato et al.
patent: 6415779 (2002-07-01), Colomby
patent: 20040031467 (2004-02-01), Bernhardt et al.
patent: 2000-282927 (2000-10-01), None
patent: 2000-291493 (2000-10-01), None
Rodriguez Rogelio
Tejeda Balmes
Calfa Jeffrey P.
International Engine Intellectual Property Company LLC
Lukasik Susan L.
Sullivan Dennis Kelly
Vo Hieu T.
LandOfFree
Map-scheduled gains for closed-loop control of fuel... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Map-scheduled gains for closed-loop control of fuel..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Map-scheduled gains for closed-loop control of fuel... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3471091