Efficient motors and controls for watercraft
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United States of America Patent
Stats
-
Dec 9, 2003
Grant Date -
Mar 27, 2003
app pub date -
Jun 10, 2002
filing date -
Jun 11, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Electronic control systems, devices and algorithms are described for improving boat efficiency, safety and convenience, particularly for electric motor powered boats. The overall efficiency of electric boat propulsion is improved by matching the needs of the propeller with the magnetic field requirements of the motor. Efficiency also is improved by limiting slip at different boat speeds. Rapid and fully electronic propeller shut off systems also are described for enhancing public acceptance of electric boats and more convenient cruise control systems are described for improving public acceptance of the boating experience.
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Cited Art Landscape
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