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Control circuits and methods for inhibiting abrupt engine mode transitions in a watercraft

  • US 20040121661A1
  • Filed: 07/22/2003
  • Published: 06/24/2004
  • Est. Priority Date: 07/22/2002
  • Status: Active Grant
First Claim
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1. A watercraft comprising an propulsion device, an internal combustion engine that powers the propulsion device, a change device that changes the propulsion device between a first mode and a second mode, the propulsion device being powered by the engine in the first mode and not powered by the engine in the second mode, a setting device that sets an engine output of the engine between a minimum level and a maximum level, an operating device that provides a first command that corresponds to either the first mode or the second mode and provides a second command that corresponds to the engine output, a first control device controlling the change device based upon the first command, a second control device controlling the setting device based upon the second command, and a sensing device that senses either the first mode or second mode of the propulsion device to provide a mode signal, the second control device regulating the setting device to set the engine output generally at the minimum level or to lower the engine output generally to the minimum level when the first command from the operating device and the mode signal from the sensing device differ from each other.

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