초록 ▼

A watercraft control system is provided in which shift and thrust of outboard motors can be controlled through adjacent two operating levers in the watercraft having three or more outboard motors mounted in parallel on a transom plate. The control system can be provided with a control circuit for de

A watercraft control system is provided in which shift and thrust of outboard motors can be controlled through adjacent two operating levers in the watercraft having three or more outboard motors mounted in parallel on a transom plate. The control system can be provided with a control circuit for detecting lever positions of the operating levers and controlling the left unit according to the lever position of the left operating lever and the right unit according to the lever position of the right operating lever. The control circuit can be provided with a calculation circuit for calculating an imaginary lever position of the middle unit from the lever positions detected.

대표청구항 ▼

What is claimed is: 1. A watercraft control system for controlling shift and thrust of watercraft propulsion units through first and second adjacent operating levers in a watercraft having at least a left-most propulsion unit, a right-most propulsion unit, and at least an intermediate propulsion un

What is claimed is: 1. A watercraft control system for controlling shift and thrust of watercraft propulsion units through first and second adjacent operating levers in a watercraft having at least a left-most propulsion unit, a right-most propulsion unit, and at least an intermediate propulsion unit disposed between the right-most and the left-most propulsion units, the control system comprising a control device configured to detect positions of the first and second operating levers, to control the operation of the left-most propulsion unit in response to the lever position of the first lever, and to control the operation of the right-most propulsion unit in response to the lever position of the second lever, wherein the control device includes a calculation module for calculating, from the detected lever positions, imaginary lever positions of the intermediate watercraft propulsion units between the left and the right units. 2. The watercraft control system according to claim 1, wherein the watercraft has only three watercraft propulsion units, and the imaginary lever position is calculated as a middle point of the space between lever positions of the first and second operating levers. 3. The watercraft control system according to claim 1, wherein the watercraft has at least four watercraft propulsion units and the imaginary lever positions of two of the watercraft propulsion units between the left-most and right-most propulsion units, are two equally-divided lever positions obtained by dividing the space between the first and second lever positions into three equal parts. 4. The watercraft control system according to claim 1, wherein if the difference between the first and second operating lever positions is not larger than a predetermined value, the right-most and left-most propulsion units are controlled so as to generate the same thrust, together with the intermediate watercraft propulsion unit, corresponding to an intermediate position between the first and second lever positions. 5. A watercraft control system for controlling shift and thrust of watercraft propulsion units through first and second adjacent operating levers in a watercraft having a left-most propulsion unit, a right-most propulsion unit, and at least an intermediate propulsion unit disposed between the right-most and the left-most propulsion units, the control system comprising control means for detecting lever positions of the first and second operating levers, controlling the left-most propulsion unit in response to the position of the first lever, and controlling the right-most unit in response to the position of the second operating lever, wherein the control means includes calculation means for calculating, from the detected lever positions, imaginary lever positions of the intermediate watercraft propulsion units between the left and the right units. 6. A watercraft control system for controlling shift and thrust of watercraft propulsion units through first and second adjacent operating levers in a watercraft having a left-most propulsion unit, a right-most propulsion unit, and at least an intermediate propulsion unit disposed between the right-most and the left-most propulsion units, the control system comprising a control device configured to detect lever positions of the first and second operating levers, to control the left-most propulsion unit in response to the position of the first lever, and to control the right-most unit in response to the position of the second operating lever, wherein the control device includes a calculation device configured to detect a thrust of the left-most unit and a thrust of the right-most unit and to calculate, from the detected thrusts of the left-most and right-most units, target thrusts of the intermediate propulsion unit between the left unit and the right unit thrusts. 7. The watercraft control system according to claim 6, wherein the watercraft has three watercraft propulsion units, and wherein the target thrust is a thrust equal to half of the sum of the thrust of the right unit and that of the left unit. 8. The watercraft control system according to claim 6, wherein the watercraft has four propulsion units and the target thrusts of the two intermediate propulsion units are two equally-divided thrusts obtained by dividing the difference between the thrust of the right-most unit and that of the left-most unit into three equal parts. 9. A watercraft control system for controlling shift and thrust of watercraft propulsion units through first and second adjacent operating levers in a watercraft having a left-most propulsion unit, a right-most propulsion unit, and at least an intermediate propulsion unit disposed between the right-most and the left-most propulsion units, the control system comprising control means for detecting lever positions of the first and second operating levers, controlling the left-most propulsion unit in response to the position of the first lever, and controlling the right-most unit in response to the position of the second operating lever, wherein the control device includes calculation means for detecting a thrust of the left-most unit and a thrust of the right-most unit and calculating, from the detected thrusts of the left-most and right-most units, target thrusts of the intermediate propulsion unit between the left unit and the right unit thrusts.