Engine control unit systems and methods for a boat...

Details Engine control unit systems and methods for a boat... Engine control unit systems and methods for a boat...

2011-03-29

2011-03-29

Cronin, Stephen K (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C701S103000, C701S104000, C477S107000, C477S109000, C477S110000, C477S111000, C470S087000

Reexamination Certificate

active

07917283

ABSTRACT:
A predicted boat speed value generator, in accordance with one or more embodiments, receives an engine rotation signal, an intake pressure value, and other detection signals including shift position, and provides a predicted boat speed value. A control signal generator determines the fuel injection amount, the amount of air, and the ignition timing based on the predicted boat speed to provide respective control signals. The predicted boat speed value generator includes a predicted boat speed mapped value extraction process to search through the predicted boat speed value map during the constant speed operation and acceleration, based on the rotational speed and the intake pressure, to extract the predicted boat speed mapped value “d” for output. A predicted decelerating boat speed value output process establishes the initial predicted boat speed value to provide the attenuated predicted boat speed value in every cycle.

REFERENCES:
patent: 6015319 (2000-01-01), Tanaka
patent: 6612882 (2003-09-01), Shidara et al.
patent: 6942530 (2005-09-01), Hall et al.
patent: 7680582 (2010-03-01), Ishida et al.
patent: 06-117315 (1994-04-01), None
patent: 09-004488 (1997-01-01), None

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