174results about "Steering by propulsive elements" patented technology

A system and method for enhancing marine vessel efficiency through integrated hull optimizations is disclosed. The system includes automated bow thruster covers that reduce hull drag and condition water flow, coupled with strategically positioned air lubrication nozzles that create and maintain an air layer under the vessel. The bow thruster covers may be configured as circular doors or parallel panels, optionally incorporating air discharge ports or working in conjunction with dedicated air jets. An intelligent control system optimizes the integrated components using real-time sensor data and computational fluid dynamic analysis. The system modulates air distribution and cover positions based on sea conditions and vessel speed, maintaining optimal efficiency during operation. External surfaces may incorporate superaerophilic structures to enhance air retention and reduce drag. The comprehensive integration of these components provides improved hydrodynamic efficiency while maintaining full bow thruster functionality when required.

The embodiment of the invention relates to a suspension collaborative steering and fault-tolerant method for a wave adaptive unmanned ship, and the method comprises the steps: collecting the environment perception information and attitude data of the unmanned ship in real time, and carrying out the fusion processing, and generating a multi-source data matrix; pre-judging the front sea condition based on the multi-source data matrix, and when the sea condition characteristic parameters meet preset dynamic adjustment conditions, adjusting the expansion and contraction amount of each group of electromagnetic suspensions in a pre-judgment time window so as to form a draught gradient adapting to the sea condition change; when a steering instruction is received, the draft difference of floating bodies on the two sides of the unmanned ship and the thrust difference of propelling systems on the two sides are synchronously adjusted, so that the steering track is controlled, and transverse inclination of the ship body is restrained; in the sailing process, the working states of the electromagnetic suspension and the propelling system are monitored in real time, faults are classified, when it is detected that the execution units are abnormal, a fault-tolerant reconstruction strategy is triggered according to the fault types, and stress distribution or propelling thrust is reconstructed by locking abnormal parts and utilizing the remaining execution units, so that the sailing capacity of the unmanned ship is maintained.

A watercraft propulsion system includes a first propulsion device attachable to a hull, a second propulsion device attachable to the hull adjacent to the first propulsion device, a first steering device to steer the first propulsion device, a second steering device to steer the second propulsion device, and a controller configured or programmed to control the first propulsion device, the second propulsion device, the first steering device, and the second steering device. The controller is configured or programmed to determine whether or not a predetermined load torque increase condition is satisfied in which a steering load torque of the second propulsion device is likely to be increased by a water jet generated by the first propulsion device, and to perform a propulsive force restricting control to restrict the propulsive forces of the first propulsion device and the second propulsion device if the predetermined load torque increase condition is satisfied.

To provide a vessel capable of improving propulsion performance of each method when a hull is propelled by a wind power propulsion unit and when the hull is propelled by a propeller.SOLUTION: A vessel 1 comprises: a propeller 12 that generates thrust for a hull 11; and a wind power propulsion unit 10 that propels the hull 11 by means of wind power. Thus, the vessel 1 can propel the hull 11 by the wind power propulsion unit 10 when wind is strong, and propel the hull 11 by the propeller 12 when wind is weak. The hull 11 is propelled toward a bow during machine traveling where the hull 11 is propelled by the propeller 12, and the hull 11 is propelled toward a stern during sailing where the hull 11 is propelled by the wind power propulsion unit 10. In this case, the vessel 1 can be structured so as to suit the machine traveling for propulsion of the vessel 1 toward the bow. The vessel 1 can be structured so as to suit the sailing for propulsion of the vessel 1 toward the stern.SELECTED DRAWING: Figure 3

A watercraft operating system includes a plurality of marine propulsion devices, a joystick, a thrust selector, and a controller. The thrust selector is operable to select one of a plurality of thrust modes including a limiting mode, which limits a forward thrust and a rearward thrust, and a non-limiting mode which does not limit at least one of the forward thrust and the rearward thrust. The forward thrust is generated by each of the plurality of marine propulsion devices when the joystick is tilted forward, whereas the rearward thrust is generated when the joystick is tilted rearward. The controller is configured or programmed to control a rudder angle and an output of each of the plurality of marine propulsion devices in accordance with the selected thrust mode, a tilt direction of the joystick, and a tilt amount of the joystick.

This invention relates to the field of marine equipment technology, and provides an integrated lifting and steering structure for a marine jacking machine, as well as the marine jacking machine itself. The integrated lifting and steering structure includes a screw, a housing, and a first sleeve, a second sleeve, a first stator assembly, and a second stator assembly disposed within the housing. The screw passes through the upper and lower ends of the housing, with its lower end used to connect to a propeller. The first and second sleeves are respectively sleeved on the screw. The first sleeve is threadedly connected to the screw, while the second sleeve slides axially and is circumferentially limited by the screw. The first and second sleeves are located at the centers of the first and second stator assemblies, respectively, and are configured as the rotors of the first and second stator assemblies. This achieves a truly highly integrated, compact, and independently reliable integrated design, significantly improving the overall rigidity and durability of the equipment.

A marine rotating seat control device integrated with a portable function box comprises a power module, a propeller controller, a seat and the function box. The power supply module and the propeller controller are integrated in the functional box, and the seat and the functional box are connected through the rotating base; a first connecting seat of the rotating base is fixedly connected with the seat base, and a second connecting seat of the rotating base is fixedly connected with the top surface of the functional box; the first connecting seat is in running fit with the second connecting seat; an angle sensor used for detecting the rotating angle of the seat is installed on the rotating base and electrically connected with the propeller controller. The driving direction of the ship is controlled through the rotating seat, a new mode for controlling the ship is provided for water traveling enthusiasts, an operator can control the moving direction of the ship by only sitting on the rotating seat and twisting the seat, new experience is brought to the operator, and the navigation fun is increased.

The invention relates to the technical field of marine equipment, and provides a lifting and steering integrated structure of a marine top flow machine and the marine top flow machine. The lifting and steering integrated structure of the marine top flow machine comprises a screw rod, a shell, a sleeve, a nut, a motor, a first transmission mechanism, a second transmission mechanism and a first clutch mechanism, the screw penetrates through the upper end and the lower end of the shell, the lower end of the screw is used for being connected with the propeller, the screw is sleeved with the sleeve, the sleeve and the screw axially slide and are circumferentially limited, the nut is in threaded connection with the screw, the sleeve and the nut are connected with the first transmission mechanism and the second transmission mechanism respectively, and the motor is in driving connection with the joint end of the first clutch mechanism. According to the integrated design, the structure is extremely simplified, the manufacturing cost and the installation and maintenance complexity are reduced, and due to the fact that mechanical connecting points are reduced, the overall rigidity and the long-term operation stability and reliability under the severe working conditions of ship vibration, seawater corrosion and the like are remarkably improved.

While hull-home and operating in a heading adjustment mode, the control system of the disclosed craft receives indications of a target craft heading and an observed craft heading. Embodiments include determining that the difference in heading is above a threshold, determining an adjusted wing-affixed control setting for affecting a change in the observed heading of the craft based on at least (a) sensed environmental conditions, (b) the initial wing- affixed control setting, (c) the target craft heading, and (d) the observed craft heading; and operating wing-affixed control element(s) according to the adjusted wing-affixed control setting to change the observed heading of the craft to the target craft heading. After determining that the heading difference is not above the threshold heading difference, the wing-affixed control setting is adjusted to forgo affecting further change in the observed heading of the craft.

The embodiment of the invention discloses a vector propulsion device for an underwater robot and a control method of the vector propulsion device. A steering engine support is located in a tail fairing; the steering engine support and the motor support are in a cylinder shape with the front ends closed and the rear ends open and are coaxially nested. The steering engine is mounted on the inner side of the front end of the steering engine bracket; an output shaft is fixedly connected with the steering engine gear; round through holes are formed in the upper sides and the lower sides of the cylinder walls of the rear ends of the steering engine support and the motor support, rotating shafts are arranged between the upper through holes and the lower through holes, one ends of the two rotating shafts are embedded into the motor support in an interference mode, and the other ends of the two rotating shafts and the steering engine support form a rotating pair through bearings. The sector gear is connected to the outer side of the front end of the motor support and meshed and matched with the steering engine gear. And the pushing motor module is coaxially and fixedly connected with the motor bracket. According to the technical scheme, the transmission path can be shortened, control precision is improved, occupied space is reduced, and manufacturing cost is reduced.

A watercraft propulsion system (100) includes a main propulsion device (OM) attachable to a hull (2), an auxiliary propulsion device (EM) attachable to the hull (2) and having a lower rated output than the main propulsion device (OM), a lift (69) to move up and down a propeller (60) of the auxiliary propulsion device (EM) between an underwater position and an above-water position, and a controller (101). The controller (101) is configured or programmed to restrict the auxiliary propulsion device (EM) from being driven when the propeller (60) of the auxiliary propulsion device (EM) is in the above-water position.

A tunnel thruster of a pleasure boat includes a propeller and a tunnel. The tunnel is installed through and across the at least one hull, from a first aperture at a first side of the hull to a second aperture at a second side of the hull. The propeller rotates about a propeller principal axis within the tunnel so that, when the pleasure boat is level, the propeller principal axis is substantially horizontal and substantially perpendicular to a disc swept by the propeller. The tunnel thruster is operable to drive water between the first and second apertures to provide lateral thrust to the hull. Each of the first and second apertures has a respective highest point, and the top of the disc swept by the propeller is located at a position higher than the respective highest points of the first and second apertures when the pleasure boat is level.

A watercraft propulsion system includes a main propulsion device attachable to a hull, an auxiliary propulsion device attachable to the hull and having a lower rated output than the main propulsion device, a lift to move up and down a propeller of the auxiliary propulsion device between an underwater position and an above-water position, and a controller. The controller includes a plurality of control modes including a combined use mode in which a propulsive force generated by the main propulsion device and a propulsive force generated by the auxiliary propulsion device are used in combination. The controller is configured or programmed to restrict the main propulsion device and the auxiliary propulsion device from being driven according to the combined use mode when the propeller of the auxiliary propulsion device is in the above-water position.

This invention provides an automated ship handling system and ship control method that allow other vessels to easily recognize the ship's handling status. [Solution] The automatic ship handling system (2) includes a propulsion unit (20) for propelling the ship (1), a steering device (30) for changing the ship's course, a display device (60) for visually informing other ships of the ship's status, and a controller (41). The controller performs automatic ship handling control, which controls the propulsion unit and steering device for automatic ship handling from the point of departure to the destination, and controls the display device according to the status of the automatic ship handling control. The controller controls the display device to distinguish and display a plurality of states, including the state in which automatic ship handling control is being performed and the state in which automatic ship handling control is not possible.

The invention provides a marine electronic steering system and method, and relates to the technical field of ship steering. The marine electronic steering system comprises a controller, a turning angle detection structure, a steering wheel mechanism and a steering execution mechanism, the turning angle detection structure detects the turning angle of the steering wheel mechanism and is in communication connection with the controller, the controller is in communication connection with the steering execution mechanism, and the steering execution mechanism is in communication connection with the steering wheel mechanism. The steering executing mechanism is in driving connection with the ship propeller and enables the propelling direction of the ship propeller to deflect.

A watercraft propulsion system includes a primary propulsion device, an auxiliary propulsion device, a tilt cylinder, a keeping mode setting button, and a main controller. The primary and auxiliary propulsion devices are attached to a hull of a watercraft, and the auxiliary propulsion device includes an electric motor as a power source. The tilt cylinder changes a tilt angle of the auxiliary propulsion device with respect to the hull. The keeping mode setting button issues a command to execute a keeping mode to keep the hull either at a predetermined target position or oriented in a predetermined target compass direction. When the command to execute the keeping mode is issued by the keeping mode setting button, the main controller is configured or programmed to execute the keeping mode by setting either the predetermined target position or the predetermined target compass direction based on the tilt angle of the auxiliary propulsion device.

The present invention relates to a gyro stabilizer assembly (1) for a marine vessel, comprising: a casing (2) defining a chamber (3) for supporting an at least partial vacuum; a flywheel (4) mounted within the chamber (3) for rotating about an axis of rotation (Z) under the partial vacuum; a flywheel shaft (5) on which the flywheel (4) is supported and mounted in the casing for rotation of the flywheel about the axis of rotation (Z), the flywheel shaft being rotatably supported by a first rotary bearing (6) at one end region of the shaft (5) and a second rotary bearing (7) at an opposite end region of the shaft (5); a lubrication system (8) configured to circulate lubricant (O) from a lubricant tank (9) to the rotary bearings (6, 7). The tank (9) is provided within or on the casing (2) to collect lubricant from the rotary bearings (6, 7) under the action of gravity, and the first and second rotary bearings (6, 7) are provided in the casing (2) for operation under the partial vacuum. The invention also relates to a vehicle, in particular a marine vessel, comprising the gyro stabilizer assembly (1).

To provide a control device for hull capable of maneuvering by intuition with operation of a joy stick.SOLUTION: A control device for hull includes an engine, a first thruster arranged either in front or rear of a hull, a second thruster on the other side, a joy stick for maneuvering the hull, an operation signal output unit connected to the joy stick and outputting an operation signal, a first control unit connected to the operation signal output unit for controlling the engine, a second control unit connected to the operation signal output unit for controlling the first thruster, and a third control unit connected to the operation signal output unit for controlling the second thruster. The joy stick has a lever and is configured to be capable of being inclined in an arbitrary direction in 360 degrees in horizontal direction, and the engine, the first thruster, and the second thruster are capable of being controlled by the direction that the joy stick is inclined.SELECTED DRAWING: Figure 1

A watercraft propulsion system includes a bow thruster, at least two propulsion devices, a translation / bow turning operator to apply a translation command to translate a hull and a bow turning command to turn a bow of the hull, and a controller configured or programmed to drive the bow thruster, and drive one of the at least two propulsion devices forward and another of the at least two propulsion devices in reverse while controlling the steering angles of the at least two propulsion devices so that propulsive force action lines of the at least two propulsion devices cross each other in the hull in a translation watercraft maneuvering mode to translate the hull in response to an operation of the translation / bow turning operator. The controller includes a calibration mode in which calibration is performed for the translation watercraft maneuvering mode.

The invention relates to the technical field of automatic lifting, and particularly discloses an automatic lifting device for quick positioning and alignment of an electronic anchor for an observation ship, which comprises a main frame, a spring wheel is fixedly connected to the side surface of the main frame, an auxiliary frame is rotatably connected to the side surface of the main frame, and a sliding rod penetrates through and is slidably connected to the inner wall of the auxiliary frame. The top of the sliding rod is fixedly connected with a satellite positioner, the bottom of the sliding rod is fixedly connected with a propelling device, the side face of the auxiliary frame is fixedly connected with a lock catch matched with the pulling lock catch, the auxiliary frame comprises a driving frame, the side face of the driving frame is fixedly connected with a rotating ring, and the rotating ring is fixedly connected with the sliding rod. The inner wall of the rotating ring penetrates through and is rotationally connected with a rotating column, the side face of the rotating column is fixedly connected with a guide plate, the side face of the guide plate is fixedly connected with a brake plate, and the side face of the driving frame is fixedly connected with a driving assembly. And the purpose of reducing the deflection pressure during adjustment is achieved.

A ship control device is provided with an input unit capable of acquiring operation inputs from each of a first operator used in a low-speed navigation control mode and a second operator used in a high speed navigation control mode, and a control unit for determining a target direction and a throttle opening in the direction control at the time of navigation based on the operation inputs acquired in the input unit. The low-speed navigation control mode has a manual operation control mode by the operation of the first operator and an automatic navigation control mode for holding a direction or a throttle opening using the target direction. The control unit is provided with a setting unit for setting the target direction and the throttle opening used for automatic navigation based on the operation input to the first operator in the automatic navigation control mode.

Governing method of a vessel comprising at least one bow thruster, provided in the area of bow of the vessel and a single steerable engine and / or an engine with fixed axis and with at least one rudder. The method provides a maneuver of transversal translation so-called drift with activation of the bow thruster with a pre-established number of revolutions and a pre-established direction of rotation and simultaneously the activation of said one engine with a pre-established number of revolutions and a pre-established setting of forward gear or reverse gear. The engine and / or the rudder are steered alternately in one direction and in the opposite direction with respect to the longitudinal axis of the vessel with a pre-established steering angle and / or the gear direction, that is the gear direction set on the engine is alternately inverted between forward gear and reverse gear, the duration of each steering position of the engine and / or of the rudder respectively in said first direction and in said second direction and / or of said setting of gear of the engine in forward gear or in reverse gear or the frequency of switching between the two steering directions and / or the two gear directions, being in the order of magnitude of the duration between setting of the steering direction and / or of the gear and corresponding actual displacement of the vessel caused by the thrust of the engine in the corresponding steering direction and / or in the corresponding gear condition and due to the inertia of motion of the vessel.

The present watercraft operating system (100) includes a marine propulsion device (3) and a watercraft operating controller (30). Under a compass direction keeping control for keeping a watercraft (10) oriented in a target compass direction, the watercraft operating controller (30) turns a propeller (14) between a first steering position and a second steering position at a predetermined time interval. The first steering position is a position where the thrust is applied to the watercraft (10) in a back-and-forth direction and a right-and-left direction. The second steering position is obtained by reversing the first steering position in either the back-and-forth direction or the right-and-left direction. The watercraft operating controller (30) controls the magnitude of the thrust and a rotational direction of the propeller (14) such that the watercraft (10) performs bow turning toward the target compass direction when the propeller is located in each of the first and second steering positions. The watercraft operating controller (30) controls the rotational direction of the propeller (14) such that a direction of the thrust in the back-and-forth direction generated at the first steering position and a direction of the thrust in the back-and-forth direction generated at the second steering position are opposite when the watercraft (10) is caused to perform bow turning in the same direction at the first steering position and the second steering position.

To provide a ship control device capable of more reliably realizing the turning of a ship as intended by the operator without major system changes.SOLUTION: A ship control device 10 comprises an input part 201 for inputting a maneuvering command value related to ship motion control, and a control part 20 for generating a rudder angle command signal and a throttle command signal for a ship based on the maneuvering command value to output them. The control part 20 outputs the throttle command signal with a Hi level and a Low level in an intermittent control waveform if the maneuvering command value is within an intermittent control range.SELECTED DRAWING: Figure 1

The watercraft propulsion system (100) includes first and second propulsion devices (3, 4), a joystick (6), a joystick button (61), and a main controller (101). The first and second propulsion devices (3, 4) are attached to a hull (2) of a watercraft. The joystick (6) operates the first and second propulsion devices (3, 4). The joystick button (61) is operated for issuing a command of transitioning to a joystick mode (M2) for operating the first and second propulsion devices (3, 4) with the joystick (6). The main controller (101) deactivates the joystick mode (M2) based on change in state of the first and second propulsion devices (3, 4) between a stopped state and a started state under the joystick mode (M2).

An actuation system for moving at least two devices on a marine vessel includes at least three actuators, wherein the at least three actuators include at least one pair of actuators configured to jointly move a first actuated device, a plurality of position sensors configured to generate position information indicating whether each one of the at least three actuators has moved and / or whether the first actuated device has moved, and a controller configured to control each of the at least three actuators, wherein locations of the at least three actuators are initially unknown by the controller, and wherein the controller is configured to automatically determine the location of each of the at least three actuators on the marine vessel based on the position information measured in response to movement commands and, thereafter, control each of the at least three actuators based on their respective location.

A method of controlling a vessel (10) comprising a plurality of thrusters (12a-12d), where the vessel (10) is configured to operate in a bias mode (42a, 42b) where at least two of the thrusters (12a-12d) provide thrust forces (36a-36d) at least partly in opposite thrust directions, the method comprising estimating, by a control system (14), an operational condition associated with the vessel (10); and commanding, by the control system (14) and based on the estimation, execution of a countermeasure associated with an activation of the bias mode (42a, 42b), a deactivation of the bias mode (42a, 42b) or a change of a bias level of the bias mode (42a, 42b). A control system (14) and a vessel (10) are also provided.

An outboard motor (1) includes an upper unit (2) including a drive motor (3) and a first transmission mechanism (12), a lower unit (21) including a propeller and a propeller shaft, a drive shaft (31) extending from the upper unit (2) to the lower unit (21), a connecting mechanism (40) that connects the lower unit (21) to the upper unit (2) so that the lower unit (21) is pivotable, a steering motor (45) serving as a power source for pivoting the lower unit (21) relative to the upper unit (2), and a worm gear mechanism (51) that transmits rotation of the steering motor (45) to the lower unit (21). The drive shaft (31) is disposed in front of an output shaft (4) of the drive motor (3) and the steering motor (45) is disposed below the drive motor (3) and behind the drive shaft (31).