Attitude control method for rapid sliding starting of boat

Abstract

The invention belongs to the technical field of ship navigation control, and particularly relates to a posture control method for rapid sliding starting of a ship. The method specifically comprises the steps that accelerator control is conducted through an outboard engine handle, accelerator control of the outboard engine handle comprises a first accelerator threshold value, when accelerator operation of the outboard engine handle is larger than or equal to the first accelerator threshold value, a propeller of an outboard engine keeps a first rotating speed value, and at the moment, the inclination angle of the outboard engine and a ship body is increased to a sliding starting angle value; the attack angle of the hull in the trim direction is increased; the contact surface of the ship body and the water surface is reduced, water resistance is reduced, after the outboard engine state is kept for a second time interval, the ship reaches the sliding posture, and after the ship reaches the sliding posture, the inclination angle of the outboard engine and the ship body is adjusted to the normal sailing angle value. According to the invention, the power of the boat is adjusted by adjusting the tilting angle of the outboard engine and the immersion height of the propeller, so that the boat can reach a low-water-resistance sliding state at a low speed.

Description

Technical Field

[0001] This invention belongs to the field of ship navigation control technology, and specifically relates to a method for attitude control of rapid take-off and glide of a ship. Background Technology

[0002] As people's living standards improve, their leisure activities are gradually expanding to include more water sports, creating a promising market for small personal boats such as lure fishing boats and angling boats. For small boats, gliding is the ideal sailing posture, as the frictional resistance between the boat and the water surface remains constant. Currently, there is no systematic control method for gliding; existing boats rely on manual operation, simply increasing power output to increase speed and achieve gliding. This method suffers from low power output efficiency, significantly impacting the boat's range.

[0003] Based on the above reasons, this invention proposes a method for attitude control of boats and vessels during rapid take-off and glide. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and propose a method for controlling the attitude of a boat to quickly take off and glide. This method adjusts the boat's power by adjusting the tilt angle of the outboard motor and the water immersion height of the propeller, thereby quickly achieving the state of boat glide.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a method for rapid take-off and glide attitude control of a boat, which enables the boat to navigate in a glide attitude by controlling the outboard motor. Sensors installed on the boat determine whether the boat is in a glide state. The attitude control method uses the outboard motor handle for throttle control. The throttle control of the outboard motor handle includes a first throttle threshold. When the throttle operation of the outboard motor handle is greater than or equal to the first throttle threshold, the propeller of the outboard motor maintains a first rotational speed. At this time, the tilt angle between the outboard motor and the hull is increased to the take-off angle value, increasing the angle of attack in the longitudinal direction of the hull. The contact area between the hull and the water surface decreases, reducing water resistance. After maintaining the outboard motor state for a second time interval, the boat reaches the glide attitude. After the boat reaches the glide attitude, the tilt angle between the outboard motor and the hull is adjusted back to the normal navigation angle value.

[0006] As an alternative preferred solution: the outboard motor also includes a second speed value that is less than the first speed value. Before the takeoff operation, it is determined whether the propeller speed value of the outboard motor is less than the second speed value. If the second speed value is less than the first speed value, it is determined that the boat is in the starting phase. In the starting phase, the tilt angle between the outboard motor and the hull is reduced to the starting angle value.

[0007] As an alternative preferred option: the starting angle value is denoted as A, where 10°≤A≤30°.

[0008] As an alternative preferred option: the starting angle value is denoted as B, where 10°≤A≤30°.

[0009] As an alternative preferred option: the first time interval is greater than or equal to 2 seconds.

[0010] As an alternative preferred option: the second time interval is greater than or equal to 2 seconds.

[0011] As an alternative preferred solution, the attitude control method is controlled via a slide key.

[0012] As an alternative preferred option, the slide key is a mechanical button.

[0013] As an alternative preferred solution: the slide key is a touchscreen button on the control interface.

[0014] The beneficial effects of this invention are: by adjusting the tilt angle of the outboard motor and the immersion height of the propeller, the power of the boat can be adjusted, enabling the boat to reach a gliding state with low water resistance at a lower speed; for floor throttle operation or rapid acceleration, it can quickly identify and limit the boat to a specified speed, thereby reaching a gliding state at a lower speed and improving energy efficiency. Detailed Implementation

[0015] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0016] Example: A method for attitude control of rapid take-off and planing of a boat, which enables the boat to navigate in a planing attitude by controlling the outboard motor. The method uses sensors installed on the boat to determine whether the boat is in a planing state. The attitude control method uses the outboard motor handle for throttle control. The throttle control of the outboard motor handle includes a first throttle threshold. When the throttle operation of the outboard motor handle is greater than or equal to the first throttle threshold, the propeller of the outboard motor maintains a first speed value. At this time, the tilt angle between the outboard motor and the hull is increased to the take-off angle value, the angle of attack in the longitudinal direction of the hull increases, the contact area between the hull and the water surface decreases, the water resistance decreases, and after maintaining the outboard motor state for a second time interval, the boat reaches the planing attitude. After the boat reaches the planing attitude, the tilt angle between the outboard motor and the hull is adjusted back to the normal navigation angle value.

[0017] The outboard motor also includes a second speed value that is less than the first speed value. Before the takeoff operation, it is determined whether the propeller speed of the outboard motor is less than the second speed value. If the second speed value is less than the first speed value, it is determined that the boat is in the starting phase. In the starting phase, the tilt angle between the outboard motor and the hull is reduced to the starting angle value.

[0018] The slip angle is denoted as A, where 10° ≤ A ≤ 30°. For example, the slip angle can be set to 10°, 15°, 20°, 25°, or 30°. The specific slip angle is selected based on the trim angle and speed of the vessel.

[0019] The starting angle value is denoted as B, where 10° ≤ A ≤ 30°. For example, the starting angle value can be set to 10°, 15°, 20°, 25°, or 30°. The specific starting angle value is selected based on the propeller's draft and the throttle depth of the outboard motor handle.

[0020] The first time interval is greater than or equal to 2 seconds.

[0021] The second time interval is greater than or equal to 2 seconds.

[0022] Attitude control is achieved via a sliding key. The sliding key can be a mechanical button, which can be located on the boat's control panel or on the outboard motor control handle. Pressing the sliding key initiates a one-touch sliding motion.

[0023] Alternatively, the swipe keys can be set as touchscreen buttons on the control interface.

[0024] In the description of this specification, the references to terms such as "certain embodiments," "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the stated features. In the description of this application, "multiple" means at least two, such as two or three, unless otherwise explicitly specified.

[0026] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A method for controlling the attitude of a boat to quickly take off and glide, used to control the outboard motor to make the boat glide in a glide attitude, characterized in that: The vessel's planing state is determined by sensors installed on the vessel. The attitude control method uses an outboard motor handle for throttle control. The throttle control of the outboard motor handle includes a first throttle threshold. When the throttle operation of the outboard motor handle is greater than or equal to the first throttle threshold, the propeller of the outboard motor maintains a first speed value. At this time, the tilt angle between the outboard motor and the hull is increased to the planing angle value, and the angle of attack in the longitudinal direction of the hull increases. The contact area between the hull and the water surface decreases, water resistance decreases, and after maintaining the outboard motor state for a second time interval, the vessel reaches the planing attitude. After the vessel reaches the planing attitude, the tilt angle between the outboard motor and the hull is adjusted back to the normal navigation angle value.

2. The attitude control method as described in claim 1, characterized in that: The outboard motor also includes a second rotational speed value that is less than the first rotational speed value. Before the takeoff operation, it is determined whether the propeller speed value of the outboard motor is less than the second rotational speed value. If the second rotational speed value is less than the first rotational speed value, it is determined that the boat is in the starting phase. In the starting phase, the tilt angle between the outboard motor and the hull is reduced to the starting angle value.

3. The attitude control method as described in claim 1 or 2, characterized in that: The starting angle value is denoted as A, where 10°≤A≤30°.

4. The attitude control method as described in claim 2, characterized in that: The starting angle value is denoted as B, where 10°≤A≤30°.

5. The attitude control method as described in claim 1, characterized in that: The first time interval is greater than or equal to 2 seconds.

6. The attitude control method as described in claim 1, characterized in that: The second time interval is greater than or equal to 2 seconds.

7. The attitude control method as described in claim 1, characterized in that: The posture control method is controlled via a slide key.

8. The attitude control method as described in claim 7, characterized in that: The slide key is a mechanical button.

9. The attitude control method as described in claim 7, characterized in that: The slide key is a touchscreen button on the control interface.