Watercraft propulsion system and propulsion machine controlling method

摘要

A watercraft propulsion system includes a normal watercraft operating unit, a joy stick watercraft operating unit, a control unit, a control mode switching unit, and a detection unit. The normal watercraft operating unit includes throttle levers and a steering wheel. The throttle levers are used to adjust outputs of at least two propulsion machines mounted to a hull. The steering wheel is used to adjust rudder turning angles of the at least two propulsion machines. The joy stick watercraft operating unit includes a joy stick. The joy stick is used to move the hull in at least each of front, rear, left, and right directions. The control unit is configured and programmed to control the outputs and the rudder turning angles of the at least two propulsion machines in a normal mode in accordance with an operation of the normal watercraft operating unit or a joy stick mode in accordance with an operation of the joy stick watercraft operating unit. The control mode switching unit is configured to output a control mode switching instruction to the control unit when the control mode switching unit has received a switching operation of the control mode.

主权项

1. A watercraft propulsion system comprising:
a normal watercraft operating unit including throttle levers and a steering wheel, the throttle levers being configured to adjust outputs of at least two propulsion machines mounted to a hull, and the steering wheel being configured to adjust rudder turning angles of the at least two propulsion machines; a joy stick watercraft operating unit including a joy stick configured to move the hull in at least each of front, rear, left, and right directions; a control unit configured and programmed to control the outputs and the rudder turning angles of the at least two propulsion machines in a control mode including a normal mode in accordance with an operation of the normal watercraft operating unit and a control mode including a joy stick mode in accordance with an operation of the joy stick watercraft operating unit; a control mode switching unit configured to output a control mode switching instruction to the control unit when the control mode switching unit has received a switching operation of the control mode; and a detection unit configured to detect rotational speeds of engines of the at least two propulsion machines; wherein when throttle valves of the engines have moved from an open position to a fully closed position in a case where the control mode is the normal mode, the control unit does not receive the control mode switching instruction output from the control mode switching unit until a control mode switching prohibition time period elapses, and the control mode switching prohibition time period is set based on the rotational speed detected by the detection unit.