Control unit for multiple installation of propulsion units
First Claim
1. A propulsion system comprising at least first, second, and third propulsion units mounted at the stem of the boat, at least the second propulsion unit being mounted between the first and third propulsion units, each of the propulsion units configured to generate thrust for propelling the boat, at least a first steering input device, a control unit configured to control the operation of each propulsion unit and a target speed setting device configured to establish a target speed of the boat, at least a first steering control device configured to steer all of the first, second, and third propulsion units based on the first steering input device, wherein the control unit is further configured to control the driving of each propulsion unit according to a preset driving pattern to attain the target speed, wherein at least one of a thrust or a direction of thrust generated the second propulsion unit is adjusted to be different from the remaining propulsion units.
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Accused Products
Abstract
A control unit for controlling multiple propulsion units can include plural propulsion units mounted at the stern of the boat to generate thrust. A control unit can be used to control the driving of each propulsion unit, and a target speed setting device can be used to establish a target speed of the boat, in which the control unit controls the driving of each propulsion unit according to the preset driving pattern to attain the target speed.
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Citations
14 Claims
- 1. A propulsion system comprising at least first, second, and third propulsion units mounted at the stem of the boat, at least the second propulsion unit being mounted between the first and third propulsion units, each of the propulsion units configured to generate thrust for propelling the boat, at least a first steering input device, a control unit configured to control the operation of each propulsion unit and a target speed setting device configured to establish a target speed of the boat, at least a first steering control device configured to steer all of the first, second, and third propulsion units based on the first steering input device, wherein the control unit is further configured to control the driving of each propulsion unit according to a preset driving pattern to attain the target speed, wherein at least one of a thrust or a direction of thrust generated the second propulsion unit is adjusted to be different from the remaining propulsion units.
- 8. A propulsion system comprising at least first, second, and third propulsion units mounted at the stem of the boat, each of the propulsion units configured to generate thrust for propelling the boat a control unit configured to control the operation of each propulsion unit and a target speed setting device configured to establish a target speed of the boat, a steering input device and a steering module configured to steer all of the first, second, and third propulsion devices based on the steering input device, wherein the control unit includes means for independently changing a thrust amount and thrust direction of each of the propulsion units to provide a plurality of different low speed forward propulsion modes each of which provide a forward boat speed that is lower than a speed resulting from one of the propulsion units being operated in a forward mode of operation at its lowest engine speed.
Specification