Station keeping system and method
    42.
    发明授权

    公开(公告)号:US10671073B2

    公开(公告)日:2020-06-02

    申请号:US15887372

    申请日:2018-02-02

    摘要: A method for maintaining a marine vessel at a global position and/or heading includes receiving measurements related to vessel attitude and estimating water roughness conditions based on the measurements. A difference between the vessel's actual global position and the target global position and/or a difference between the vessel's actual heading and the target heading are determined. The method includes calculating a desired linear velocity based on the position difference and/or a desired rotational velocity based on the heading difference. The vessel's actual linear velocity and/or actual rotational velocity are filtered based on the roughness conditions. The method includes determining a difference between the desired linear velocity and the filtered actual linear velocity and/or a difference between the desired rotational velocity and the filtered actual rotational velocity. The method also includes calculating vessel movements that will minimize the linear velocity difference and/or rotational velocity difference and carrying out the calculated movements.

    System and method for controlling a position of a marine vessel near an object

    公开(公告)号:US10429845B2

    公开(公告)日:2019-10-01

    申请号:US15818233

    申请日:2017-11-20

    摘要: A marine vessel is powered by a marine propulsion system and movable with respect to first, second, and third axes that are perpendicular to one another and define at least six degrees of freedom of potential vessel movement. A method for controlling a position of the marine vessel near a target location includes measuring a present location of the marine vessel, and based on the vessel's present location, determining if the marine vessel is within a predetermined range of the target location. The method includes determining marine vessel movements that are required to translate the marine vessel from the present location to the target location. In response to the marine vessel being within the predetermined range of the target location, the method includes automatically controlling the propulsion system to produce components of the required marine vessel movements one degree of freedom at a time during a given iteration of control.

    System and method for controlling a position of a marine vessel near an object

    公开(公告)号:US10324468B2

    公开(公告)日:2019-06-18

    申请号:US15818226

    申请日:2017-11-20

    摘要: A method and system for controlling a position of a marine vessel near an object are disclosed. A location sensor determines a location of the marine vessel, and a speed sensor determines a speed of the marine vessel. A control module is in signal communication with the location sensor and the speed sensor. A marine propulsion system is in signal communication with the control module. The control module determines if the marine vessel is within a predetermined range of the object based on the marine vessel's location. In response to determining that the marine vessel is within the predetermined range of the object, the control module controls the propulsion system to produce at least one of a braking linear thrust and a braking moment to counter current movement of the marine vessel.

    SYSTEM AND METHOD FOR CONTROLLING A POSITION OF A MARINE VESSEL NEAR AN OBJECT

    公开(公告)号:US20190155288A1

    公开(公告)日:2019-05-23

    申请号:US15818233

    申请日:2017-11-20

    IPC分类号: G05D1/02 B63J99/00 B63H21/21

    摘要: A marine vessel is powered by a marine propulsion system and movable with respect to first, second, and third axes that are perpendicular to one another and define at least six degrees of freedom of potential vessel movement. A method for controlling a position of the marine vessel near a target location includes measuring a present location of the marine vessel, and based on the vessel's present location, determining if the marine vessel is within a predetermined range of the target location. The method includes determining marine vessel movements that are required to translate the marine vessel from the present location to the target location. In response to the marine vessel being within the predetermined range of the target location, the method includes automatically controlling the propulsion system to produce components of the required marine vessel movements one degree of freedom at a time during a given iteration of control.

    Systems and methods for controlling an electronic throttle valve

    公开(公告)号:US10054062B1

    公开(公告)日:2018-08-21

    申请号:US14570760

    申请日:2014-12-15

    IPC分类号: B60T7/12 F02D9/10 F02D9/02

    摘要: A method for controlling a position of an electronic throttle valve of an internal combustion engine is provided. The method includes determining a desired throttle valve position; determining a first feed forward signal based on a rate of change between a previous throttle valve position and the desired throttle valve position; and determining a second feed forward signal based on a comparison of the desired throttle valve position to a limp home position of the throttle valve, in which the throttle valve is biased open by a spring. A summation of the first and second feed forward signals is used to actuate the throttle valve. After the throttle valve has been actuated according to the first and second feed forward signals, the position of the throttle valve is controlled with a feedback controller to obtain the desired throttle valve position.

    Systems and methods for positioning multiple trimmable marine propulsion devices on a marine vessel

    公开(公告)号:US09862471B1

    公开(公告)日:2018-01-09

    申请号:US15180620

    申请日:2016-06-13

    IPC分类号: B63H20/10 B63H20/00

    摘要: A controller carries out a method for positioning multiple trimmable marine propulsion devices on a marine vessel transom. The method includes identifying two propulsion devices located one on either side of a transom centerline and defining these as outer propulsion devices. A third propulsion device coupled to the transom between the outer propulsion devices is defined as an inner propulsion device. A user input is received to trim the outer and inner propulsion devices in a single direction with respect to their current trim angles. In response to the user input, the controller outputs a control signal. In response to the control signal, the outer propulsion devices are trimmed in the single direction to a first trim angle and the inner propulsion device is trimmed in the single direction to a second, different trim angle. The controller may rate limit trimming of the outer propulsion devices to accomplish this.

    SYSTEMS AND METHODS FOR AUTOMATICALLY CONTROLLING ATTITUDE OF A MARINE VESSEL WITH TRIM DEVICES

    公开(公告)号:US20170297668A1

    公开(公告)日:2017-10-19

    申请号:US15635984

    申请日:2017-06-28

    IPC分类号: B63H20/10

    摘要: A trim control system automatically controls trim angle of a marine propulsion device with respect to a vessel. A memory stores trim base profiles, each defining a unique relationship between vessel speed and trim angle. An input device allows selection of a base profile to specify an aggressiveness of trim angle versus vessel speed, and then optionally to further refine the aggressiveness. A controller then determines a setpoint trim angle based on a measured vessel speed. If the user has not chosen to refine the aggressiveness, the controller determines the setpoint trim angle from the selected base profile. However, if the user has chosen to refine the aggressiveness, the controller determines the setpoint trim angle from a trim sub-profile, which defines a variant of the relationship between vessel speed and trim angle defined by the selected base profile. The control system positions the propulsion device at the setpoint trim angle.