MARINE VESSEL PROPULSION SYSTEM AND MARINE VESSEL
First Claim
1. A marine vessel propulsion system comprising:
- a plurality of propulsion devices, each including a motor and a propeller arranged to be rotated by the motor;
a common electric power supply switch arranged to be operated by an operator to turn on and off electric power supplies of the plurality of propulsion devices all at once;
an electric power supply control unit arranged to put the electric power supplies of the respective propulsion devices in an on state all at once when the common electric power supply switch is turned on and to put the electric power supplies of the respective propulsion devices in an off state all at once when the common electric power supply switch is turned off;
an abnormal state detection unit arranged to detect an abnormal state of each propulsion device; and
a power transmission cutoff unit which is arranged to, when an abnormal state of any of the propulsion devices is detected by the abnormal state detection unit, cut off transmission of power between the motor and the propeller of the propulsion device for which the abnormal state is detected.
1 Assignment
0 Petitions
Accused Products
Abstract
A marine vessel propulsion system includes a plurality of propulsion devices, each including a motor and a propeller rotated by the motor. The system further includes a common electric power supply switch arranged to be operated by an operator to turn on and off electric power supplies of the plurality of propulsion devices all at once, an electric power supply control unit arranged to put the electric power supplies of the respective propulsion devices in an on state all at once when the common electric power supply switch is turned on and to put the electric power supplies of the respective propulsion devices in an off state all at once when the common electric power supply switch is turned off, an abnormal state detection unit arranged to detect an abnormal state of each propulsion device, and a power transmission cutoff unit, which is arranged to, when an abnormal state of any of the propulsion devices is detected by the abnormal state detection unit, cut off transmission of power between the motor and the propeller of the propulsion device for which the abnormal state is detected.
17 Citations
29 Claims
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1. A marine vessel propulsion system comprising:
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a plurality of propulsion devices, each including a motor and a propeller arranged to be rotated by the motor; a common electric power supply switch arranged to be operated by an operator to turn on and off electric power supplies of the plurality of propulsion devices all at once; an electric power supply control unit arranged to put the electric power supplies of the respective propulsion devices in an on state all at once when the common electric power supply switch is turned on and to put the electric power supplies of the respective propulsion devices in an off state all at once when the common electric power supply switch is turned off; an abnormal state detection unit arranged to detect an abnormal state of each propulsion device; and a power transmission cutoff unit which is arranged to, when an abnormal state of any of the propulsion devices is detected by the abnormal state detection unit, cut off transmission of power between the motor and the propeller of the propulsion device for which the abnormal state is detected. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 17)
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14. A marine vessel propulsion system comprising:
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a plurality of propulsion devices, each including a motor, a propeller arranged to be rotated by the motor, and a clutch mechanism arranged to be switched between a transmitting state, in which power is transmitted between the motor and the propeller, and a cutoff state, in which the transmission of power between the motor and the propeller is cut off; a common electric power supply switch arranged to be operated by an operator to turn on and off electric power supplies of the plurality of propulsion devices all at once; an electric power supply control unit arranged to put the electric power supplies of the respective propulsion devices in an on state all at once when the common electric power supply switch is turned on and to put the electric power supplies of the respective propulsion devices in an off state all at once when the common electric power supply switch is turned off; a stopped state detection unit arranged to detect stopped states of the motors of the respective propulsion devices; a clutch state detection unit arranged to detect, when the stopped state detection unit detects the stopped state of the motor of any of the propulsion devices, a transmitting state of the clutch mechanism in the propulsion device for which the stopped state of the motor is detected; an ignition and injection control unit arranged to cut, when the clutch state detection unit detects the transmitting state of the clutch mechanism in the propulsion device for which the stopped state of the motor is detected, an ignition and an injection of the motor; and a power transmission cutoff unit arranged to cut off the transmission of power between the motor and the propeller of a propulsion device for which the stopped state of the motor is detected when the clutch state detection unit detects that the clutch mechanism in the propulsion device for which the stopped state of the motor is detected is in the transmitting state. - View Dependent Claims (15, 16, 18)
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19. A marine vessel propulsion system comprising:
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a plurality of propulsion devices, each including a motor, a propeller arranged to be rotated by the motor, and a clutch mechanism that is arranged to be switched between a transmitting state, in which power is transmitted between the motor and the propeller, and a cutoff state, in which the transmission of power between the motor and the propeller is cut off; a common electric power supply switch arranged to be operated by an operator to turn on and off electric power supplies of the plurality of propulsion devices all at once; an electric power supply control unit arranged to put the electric power supplies of the respective propulsion devices in an on state all at once when the common electric power supply switch is turned on and to put the electric power supplies of the respective propulsion devices in an off state all at once when the common electric power supply switch is turned off; a stopped state detection unit arranged to detect stopped states of the motors of the respective propulsion devices; a clutch state detection unit arranged to detect, when the stopped state detection unit detects the stopped state of the motor of any of the propulsion devices, the transmitting state of the clutch mechanism in the propulsion device for which the stopped state of the motor is detected; and an ignition and injection control unit arranged to cut, when the clutch state detection unit detects the transmitting state of the clutch mechanism in the propulsion device for which the stopped state of the motor is detected, an ignition and an injection of the propulsion device. - View Dependent Claims (20, 21, 22)
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23. A marine vessel propulsion system comprising:
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a plurality of propulsion devices, each including a motor and a motor control unit; a common electric power supply switch arranged to be operated by an operator to turn on and off the plurality of propulsion devices all at once; a plurality of electric power supply off command input units arranged to be operated by an operator to turn off electric power supplies of the respective propulsion devices individually; and an electric power supply control unit arranged to perform on/off control of the electric power supplies of the respective propulsion devices based on inputs from the common electric power supply switch and the respective electric power supply off command input units; the electric power supply control unit including an all electric power supply on unit arranged to turn on the electric power supplies of the respective propulsion devices all at once when the common electric power supply switch is turned on; an all electric power supply off unit arranged to turn off the electric power supplies of the respective propulsion devices all at once when the common electric power supply switch is turned off; and a first individual electric power supply off unit, which is arranged to, when the electric power supply off command is input by any of the electric power supply off command input units with the common electric power supply switch being in the on state, individually turn off the electric power supply of the propulsion device corresponding to the electric power supply off command input unit. - View Dependent Claims (24, 25, 26, 27, 28, 29)
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Specification