摘要:
The present invention relates to a steering system for a watercraft, comprising: a rudder, in particular an outboard motor (12); a steering device (16) including an actuator, in particular an electric motor (20) configured to change a direction in which the watercraft travels; a steering amount input means, such as a steering wheel (17), operable by an operator, electrically connected to the actuator (20) to provide an actuation signal corresponding to the amount of a steering operation to the actuator (20); a reaction actuator, such as a reaction motor (29) for applying a reaction force to the steering amount input device (17); and control means (33) for controlling the reaction actuator (29), the control means (33) including: at least one of operation status detection means (38) for detecting an operation status corresponding to the steering operation, running status detection means (39) for detecting a running status of the watercraft, watercraft propulsion unit status recognition means (40) for recognizing a status of a watercraft propulsion unit, in particular of an outboard motor (12), such as the installation number thereof, and actuator status detection means (41) for detecting a status of the actuator (20); torque computation means (42) for computing a torque target value based on the detection value from the at least one of the detection and recognition means; and reaction actuator control means (43) for controlling the reaction actuator (29) in accordance with the torque target value.
摘要:
The present invention relates to a steering system for a watercraft having a steering actuator (20a,20b,20c) configured to pivot a watercraft propulsion unit such as an outboard motor (12) relative to a watercraft hull (10) to steer the watercraft propulsion unit (12) from a neutral position to a right/left direction by driving force of the steering actuator (20a,20b,20c), and comprising steering assist means such as cylinders (42a,42b), pistons (43a,43b), supporting member (51) or springs (18a,18b,62,74,84), for generating predetermined urging force in a direction toward the neutral position when the watercraft propulsion unit (12) is steered in at least one of the right direction and the left direction relative to the neutral position.
摘要:
Apparatus 20 for a vehicle having a steered member such as a marine vehicle having a helm comprising a rudder 149, the apparatus 20 including a mechanically rotatable steering device 27 and a sensor 142 which senses angular movement of the steering device 27 when the craft is steered. A communication link to the rudder 149 enables the helm to monitor the rudder position. A bi-directional stop mechanism 90 is actuated when the helm determines that the rudder position is beyond starboard or port hard-over thresholds, indicating that the rudder 149 has reached a limit of travel. The helm can cause the stop mechanism 90 to fully engage the steering device 27 to stop further rotation of the steering device 27 in a first rotational direction, corresponding to rotational movement towards said limit of travel. Rotational play is provided between the sensor 142 and the stop mechanism 90, whereby the steering device 27 can be rotated a limited amount, relative to the sensor 142, when the stop mechanism 90 is fully engaged. The stop mechanism 90 is released from engagement with the steering device 27 when the sensor 142 senses that the steering device 27 is rotated, as permitted by said play, in a second rotational direction which is opposite the first rotational direction. Additionally, the same stop mechanism 90, or an optional steering effort mechanism, can be used to provide a dynamic steering effort, whereby the torque required to rotate the steering shaft 26,26.1 is varied based on system inputs and configurations. The required torque is changed by fluctuations of the amount of friction between the steering effort mechanism and steering shaft 26,26.1, based on system inputs and configurations.
摘要:
The present invention relates to a propeller drive arrangement and a method for moving and steering a vessel. The arrangement comprises an azimuthing propulsion unit (6) and operating equipment for turning said azimuthing propulsion unit to steer the vessel. The operating equipment comprises an electric motor (20) for rotating said propulsion unit (6) by means of a mechanical power transmission machinery (40) connected to said electric motor. A power unit (30) supplies electric power to said electric motor (20). A control unit (34) controls the operation of said electric motor by controlling said power unit (30). The arrangement also comprises a sensor device (16) for detecting the rotational position of said azimuthing propulsion unit (6). A control unit (34) is arranged to process steering command information from a control means (38) and turning position information from said sensor device (16) and to control the operation of said electric motor (20) on the basis of this processing.
摘要:
A monitoring device of a marine steering gear regards pump assemblies as monitoring targets and includes at least one processing device configured to: acquire at least one type of measured values indicating operating states of the monitoring targets; calculate state levels of the monitoring targets based on the measured values, the state levels being indexes of the operating states; and determine based on the state levels of the monitoring targets whether to operate or stop the monitoring targets.
摘要:
A steering (1) for a marine propulsion unit (3) adjusts at least one of a required steering speed (ωr) and a required steering torque (Tr) such that the required steering speed and the required steering torque fall within an output region when the required steering speed and the required steering torque are outside the output region, sets a target steering angle (θs) according to the adjusted required steering speed and required steering torque, and sets the target steering angle according to a rotation angle (θh) of a steering wheel (4) when the required steering speed and the required steering torque are within the output region.
摘要:
A maneuvering system for a ship 1 provided with, in the stern, two propulsion systems 2, 3, i.e., a port-side propulsion system 2 comprising a port-side propeller 2a and a port-side rudder 2a, and a starboard-side propulsion system 3 comprising a starboard-side propeller 3a and a starboard-side rudder 3b, wherein control is performed in which: a forward force Fx or backward force Fx of the ship 1 is obtained by the difference between the forward and backward propulsion forces Ta, Tb of the propulsion systems 2, 3 comprising the port-side propeller 2a and the starboard-side propeller 3a; and a first turning moment M1 in a turning direction of the ship generated by the propulsion forces Ta, Tb is offset by a second turning moment M2 in the turning direction of the ship 1 generated by steering the rudder 2b of the propulsion system 2 on one side of the ship, whereby the ship 1 is caused to move in a transversal manner toward the other side while rotation of the ship 1 is avoided. A high degree of maneuverability is thereby achieved with a relatively simple maneuvering operation.
摘要:
An object is to provide a ship handling device enabling easy turning calibration. With a ship handling device (7), during turning calibration with the ship handling device (7), the joystick lever (10) is turned to rotate the forward-backward propellers (4) on the port and starboard sides, and the joystick lever (10) is tilted to change a forward-thrust/backward-thrust ratio of the forward-backward propeller (4) on the port or starboard side or to change rotation speeds thereof, and, when a calibration execution switch (10a) is operated, thrusts generated with the changed forward-thrust/backward-thrust ratio are set as correction coefficients, or, among thrusts generated at the changed rotation speeds (Npn, Nsn) of the forward-backward propellers (4) on the port and starboard sides, thrusts generated by the forward-backward propellers (4) on the port and starboard sides according to the tilting of the joystick lever (10) are set as correction coefficients (Cp, Cs).