Cpac Systems Ab

Yamaha Hatsudoki Kabushiki Kaisha

Mathias Lindeborg

Isao Kanno

Sebastian Nilsson

Makoto Ito

Hiroshi Inoue

Yoshikazu Nakayasu

Katsutoshi Naito

Anders Larsson

Peter Torrångs

Peter Torrângs

Erik Gulliksson

Lars Johansson

Marcus Kristensson Wingolf

Marcus Brorsson

A method for controlling a propulsion operation of a propulsion unit to reach a desired speed of a marine vessel. The method comprises obtaining a target speed configuration indicating the desired speed of the marine vessel, obtaining a current speed value associated with a current speed of the marine vessel, obtaining a fill level value associated with a fill level of one or more ballast tanks of the marine vessel, and controlling the propulsion operation of the propulsion unit to reach the desired speed based on the target speed configuration, the current speed value, and on the fill level value.

Engine control

A method for a propulsion arrangement () for providing propulsive power to a marine vessel (), the method comprising the steps of: &#x2014;determining (S) whether the vessel () is running by means of the propulsion arrangement at a constant vessel speed, &#x2014;storing (S) a value (V) of the constant vessel speed, &#x2014;detecting (S) a value (n) of a rotational speed of a rotatable part () of the propulsion arrangement while the vessel is running at the constant vessel speed, &#x2014;storing (S) the detected rotational speed value, &#x2014;subsequently controlling (S) the propulsion arrangement so as to change the vessel speed, &#x2014;subsequently repeating (S-S) the steps of determining whether the vessel is running at a constant vessel speed, storing a value (V-V) of the constant vessel speed, and detecting and storing a value (n-n) of the rotational speed of the rotatable part, to obtain a plurality of stored pairs of vessel speed values and rotational speed values, and &#x2014;creating (S) based at least partly on the stored pairs of values a correlation record () correlating vessel speed values with rotational speed values.

Method for a propulsion arrangement for a marine vessel

A boat basically includes a hull, at least one propulsion unit, a heading sensor, a position sensor and a controller. The at least one propulsion unit is movably mounted to the hull, and has a propulsion axis. The heading sensor is configured to detect a heading of the boat. The position sensor is configured to detect a position of the boat. The controller is programmed to turn the at least one propulsion unit relative to the hull such that the propulsion axis moves away from a center point of the boat to correct the heading of the boat upon determining that the boat is drifting in a drift direction based on detection results of the heading sensor and the position sensor.

Boat and heading control method

A boat maneuvering control method for a boat provided with a propulsion device includes acquiring a target orientation, acquiring an actual orientation of the boat, setting a target yaw rate value based on orientation information of at least one of the target orientation and the actual orientation, detecting an actual yaw rate value of the boat, and controlling a direction of a thrust force of the propulsion device based on the target yaw rate value and the actual yaw rate value.

Boat maneuvering control method for boat and boat maneuvering control system for boat

In a first step of a watercraft control method, a command signal to activate an automatic cruise function is received. In a second step, a target vessel velocity of a watercraft is set. In a third step, an actual vessel velocity of the watercraft is obtained. In a fourth step, a command signal is generated that is a signal to perform an automatic cruise control to control a thrust of the watercraft such that a difference between the target vessel velocity and the actual vessel velocity falls in a predetermined range of values. In a fifth step, it is determined whether or not a predetermined interruption condition has been established. In a sixth step, a command signal is generated that is a signal to perform the automatic cruise control with the thrust having a different magnitude from the thrust to be generated under normal circumstances without establishment of the interruption condition when the interruption condition has been established.

Watercraft control method and watercraft control system

The present disclosure relates to a propulsion control system () for controlling a marine vessel () comprising at least four propulsion units (). The marine vessel () comprises a longitudinal centre line (L) and a transversal line (T). The transversal line (T) extends in a direction perpendicular to the longitudinal centre line (L) and also extends through the steering axis of the aftmost of the propulsion units. The marine vessel () comprises four quadrants (I, II, III, IV) defined by the longitudinal centre line (L) and the transversal line (T) wherein a first (I) and a second (II) quadrant are located on the same side of said longitudinal centre line (L). When a combined sway and yaw motion is desired, the thrust of one propulsion unit is directed towards the second (I) quadrant, and the thrust of the other propulsion units is directed towards the first (II) quadrant.

Propulsion control system and method for controlling a marine vessel

A marine propulsion control system for controlling a set of propulsion units carried by a hull of a vessel is based on the recognition that simultaneous control of yaw and sway movements can be achieved through a control system for a set of propulsion units where two propulsion units achieve yaw movement and two propulsion units achieve a sway movement.

Rotation and translation control system for vessels

In a marine propulsion control system for controlling a set of propulsion units carried by a hull of a vessel, cavitation typically occurs on the propulsion unit with reverse gear engaged, and in a triple propulsion unit installation the normally idle center propulsion unit can be used to increase the reverse thrust and thereby limit the RPM of propulsion units in reverse, so that the cavitation effect is limited, and simultaneously allow for higher forward thrust on the third propulsion unit, thus increasing the total thrust for the vessel.

Use of center engine for docking

In a method for calibrating a system for controlling thrust and steering of a drive arrangement in a watercraft, the system includes an operating device adapted for indicating a requested direction of travel of the watercraft, the operating device being connected to a control unit for providing corresponding thrust and steering commands to the drive arrangement. The method includes receiving an activation command in the control unit, for beginning the calibration, detecting any movements of the operating device, storing values corresponding to the movements in the control unit together with corresponding thrust and steering values, and repeating the detecting step and the storing step until a termination command is received in the control unit, thereby using the stored values in subsequent operation of the operating device for indicating the direction of travel of the watercraft. An arrangement for calibrating a system for controlling thrust and steering of a drive arrangement in a watercraft is also provided.

Method for arrangement for calibrating a system for controlling thrust and steering in a watercraft

A marine propulsion control system for controlling a set of propulsion units carried by a hull of a vessel, said marine propulsion control system including an input command regulator for generating a desired delivered thrust by the propulsion units in the set of propulsion units, a set of control units, wherein each control unit is associated with a separate propulsion unit in said set of propulsion units, wherein each control units is arranged to control the delivered thrust of the associated propulsion unit depending on input control signals received by the control unit and vessel including such a propulsion control unit.

Growing community of inventors

Gothenburg, Sweden

Mathias Lindeborg