Propeller centering control method

Abstract

The invention discloses a propeller centering control method which comprises a propeller, a magnetic piece arranged on the propeller and a Hall sensor arranged at the centering position of the propeller and used for detecting the magnetic piece. The electromagnetic conversion device is arranged at the centering position of the propeller and used for converting electric energy into magnetic force to attract and lock the magnetic piece so as to enable the propeller to be centered, and the method comprises the steps that S1, the motor controller controls the motor to work to drive the propeller to rotate, and a detection signal sent by the Hall sensor is detected; and S2, after the motor controller receives a signal which is sent by the Hall sensor and indicates that the magnetic part is detected, the motor is controlled to stop working, the electromagnetic conversion device is controlled to work, the magnetic part is attracted to lock the propeller, the propeller can quickly and automatically return to the center, and operation is easy and convenient.

Description

Technical Field

[0001] This invention relates to a propeller return-to-center control method. Background Technology

[0002] Currently, most watercraft on the market, such as fishing boats and canoes, are powered by underwater propulsion systems. These systems typically consist of a main control board, a motor, and a propeller. During installation, the propulsion system is usually inserted through a narrow, flat mounting port. Figure 2 As shown, when installing or removing the thruster, if the propeller blades are not centered and are in a perpendicular or crossed position to the thruster body, the propeller blades will get stuck in the narrow installation opening and cannot be removed. Summary of the Invention

[0003] This invention overcomes the shortcomings of the prior art and provides a propeller return-to-center control method.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A propeller return-to-center control method, characterized by: including a propeller, a magnetic component disposed on the propeller, a Hall sensor disposed at the propeller return-to-center position for detecting the magnetic component, and an electromagnetic conversion device disposed at the propeller return-to-center position for converting electrical energy into magnetic force to attract and lock the magnetic component to return the propeller to center; the steps include:

[0006] S1. The motor controller controls the motor to drive the propeller to rotate and detects the detection signal emitted by the Hall sensor.

[0007] S2. When the motor controller receives the signal from the Hall sensor indicating that a magnetic component has been detected, it controls the motor to stop working and controls the electromagnetic conversion device to work, attracting the magnetic component and locking the propeller.

[0008] The propeller return-to-center control method described above is characterized by: further comprising:

[0009] S3. During time period T1, the motor controller continuously receives the detection signal from the Hall sensor; when the motor controller receives the signal of the detected magnetic component during time period T1, it jumps to S4; when the motor controller does not continuously receive the signal of the detected magnetic component during time period T1, it jumps to S5.

[0010] S4. The motor controller gradually reduces the input current of the electromagnetic conversion device to the preset minimum locking current.

[0011] S5. The motor controller increases the input current of the electromagnetic conversion device to the preset maximum locking current until the motor controller receives a signal from the Hall sensor that the magnetic component has been detected. Then, the motor controller gradually reduces the input current of the electromagnetic conversion device to the preset minimum locking current.

[0012] The propeller return-to-center control method described above is characterized by: further comprising:

[0013] S6. After the motor controller increases the input current of the electromagnetic conversion device to the preset maximum locking current, and the motor controller does not receive the detection signal from the Hall sensor within time T2, it returns to S1.

[0014] The propeller return-to-center control method described above is characterized by: further comprising S0, where the motor controller detects whether the propeller assembly is in a stationary state; if it is in a stationary state, it jumps to S1; if it is not in a stationary state, it provides a prompt.

[0015] The propeller return-to-center control method described above is characterized in that: S0 includes S01, where the motor controller detects whether the safety switch is closed; if closed, it jumps to S02; if open, it provides a prompt.

[0016] S02: The motor controller detects whether the motor throttle is zero. If the throttle is zero, it jumps to S1. If the throttle is not zero, it issues a prompt.

[0017] The propeller return-to-center control method described above is characterized in that: the motor controller controls the sound-generating component to provide sound prompts and / or controls the display component to provide display prompts.

[0018] The propeller return-to-center control method described above is characterized in that: in S1, the motor drives the propeller to rotate clockwise.

[0019] The beneficial effects of this invention are:

[0020] This invention features a magnetic component on the propeller, a Hall sensor for detecting the magnetic component, and an electromagnetic conversion device for converting electrical energy into magnetic force to attract and lock the magnetic component, thereby centering the propeller. After receiving the detection signal from the Hall sensor, the motor controller controls the electromagnetic conversion device to automatically attract the magnetic component, thus locking the propeller and achieving centering. This invention enables rapid propeller centering and is simple and convenient to operate. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the invention;

[0022] Figure 2 This is an application example of the present invention and a schematic diagram of the propeller returning to center. Detailed Implementation

[0023] The technical solutions in the embodiments of the present invention will now be clearly and completely described in conjunction with the accompanying drawings.

[0024] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. Furthermore, descriptions involving "preferred," "second-best," etc., in this invention are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "preferred" or "second-best" may explicitly or implicitly include at least one of those features.

[0025] like Figure 1 As shown, a propeller return-to-center control method is characterized by comprising: a propeller, a magnetic component mounted on the propeller, a Hall sensor positioned at the propeller return-to-center position for detecting the magnetic component, and an electromagnetic conversion device positioned at the propeller return-to-center position for converting electrical energy into magnetic force to attract and lock the magnetic component, thereby returning the propeller to its center position. The magnetic component is a magnet and is mounted on one of the propeller blades. The Hall sensor and the electromagnetic conversion device are respectively mounted on the motor housing at the propeller return-to-center position. The steps include:

[0026] S0. To prevent the propeller's own operation from affecting its return to center, the motor controller needs to first detect whether the propeller assembly is stationary. If it is stationary, it jumps to S1; if it is not stationary, it issues a warning. Specifically, S0 includes...

[0027] S01: The motor controller checks whether the safety switch is closed. If it is closed, it jumps to S02; if it is open, it issues a prompt.

[0028] S02: The motor controller detects whether the motor throttle is zero. If the throttle is zero, it jumps to S1. If the throttle is not zero, it issues a prompt.

[0029] The motor controller controls the sound-generating component to provide audible prompts and / or controls the display component to provide visual prompts. Audible and visual prompts guide the user to turn off the thruster's safety switch and return the motor throttle to zero, thus keeping the thruster stationary.

[0030] S1. After the thruster is stationary, the motor controller controls the motor to drive the propeller to rotate at low speed and detects the detection signal sent by the Hall sensor in real time.

[0031] S2. When the motor controller receives the signal from the Hall sensor that the magnetic component has been detected, it controls the motor to stop working and controls the electromagnetic conversion device to work, so that the electromagnetic conversion device generates an adsorption magnetic force, which adsorbs the magnetic component and locks the propeller.

[0032] S3. Due to the rotational inertia generated when the motor drives the propeller to rotate at low speed in the water, after the propeller drives the magnetic component to the centering position set by the Hall sensor, the propeller and magnetic component will rotate away from the centering position set by the Hall sensor due to the propeller's own rotational inertia or the water flow. Therefore, during the T1 time period, the motor controller continuously receives the detection signal from the Hall sensor.

[0033] During time period T1, the motor controller receives a signal that the magnetic component has been detected. This means that the propeller's rotational inertia is small and the water flow has little influence, causing the magnetic component and the propeller to remain close to the Hall sensor. It is determined that the electromagnetic conversion device has attracted the magnetic component and locked the propeller, and the process jumps to S4.

[0034] S4. The motor controller gradually reduces the input current of the electromagnetic conversion device to the preset minimum locking current, thereby locking the propeller with minimum power and reducing power consumption.

[0035] If the motor controller does not continuously receive a signal from the detected magnetic component during the T1 time period, that is, under the influence of the large rotational inertia of the propeller or the large water flow, the magnetic component and the propeller deviate from the set position of the Hall sensor, and jump to S5.

[0036] S5. The motor controller increases the input current of the electromagnetic converter to a preset maximum locking current. By increasing the input current, the magnetic attraction force of the electromagnetic converter is enhanced, pulling the deviated magnetic component and propeller back to the position set by the Hall sensor. Once the motor controller receives a signal from the Hall sensor indicating that the magnetic component has been detected, it gradually reduces the input current of the electromagnetic converter to a preset minimum locking current. When the Hall sensor detects the magnetic component again—meaning the deviated magnetic component and propeller have been attracted back to the Hall sensor's position and locked—the propeller is locked with minimum power consumption, reducing power consumption.

[0037] S6. When the motor controller increases the input current of the electromagnetic conversion device to the preset maximum locking current, and the motor controller does not receive the detection signal from the Hall sensor within the time T2, that is, when the propeller deviates significantly from the set position of the Hall sensor due to its own rotational inertia or the influence of water flow, and cannot be pulled back by increasing the magnetic attraction force of the electromagnetic conversion device, return to S1 for secondary centering processing.

[0038] In this case, the motor in S1 drives the propeller to rotate clockwise. Setting it to rotate in one direction can avoid errors in the execution logic.

[0039] The above are merely preferred embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct or indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A propeller return-to-center control method, characterized in that: The system includes a propeller, a magnetic component mounted on the propeller, a Hall sensor positioned at the propeller's centering position for detecting the magnetic component, and an electromagnetic conversion device positioned at the propeller's centering position for converting electrical energy into magnetic force to attract and lock the magnetic component, thereby aligning the propeller. The steps include... S1. The motor controller controls the motor to drive the propeller to rotate and detects the detection signal emitted by the Hall sensor. S2. When the motor controller receives the signal from the Hall sensor indicating that a magnetic component has been detected, it controls the motor to stop working and controls the electromagnetic conversion device to work, attracting the magnetic component and locking the propeller.

2. The propeller return-to-center control method according to claim 1, characterized in that: It also includes S3. During time period T1, the motor controller continuously receives the detection signal from the Hall sensor; when the motor controller receives the signal of the detected magnetic component during time period T1, it jumps to S4; when the motor controller does not continuously receive the signal of the detected magnetic component during time period T1, it jumps to S5. S4. The motor controller gradually reduces the input current of the electromagnetic conversion device to the preset minimum locking current. S5. The motor controller increases the input current of the electromagnetic conversion device to the preset maximum locking current until the motor controller receives a signal from the Hall sensor that the magnetic component has been detected. Then, the motor controller gradually reduces the input current of the electromagnetic conversion device to the preset minimum locking current.

3. The propeller return-to-center control method according to claim 2, characterized in that: It also includes S6. After the motor controller increases the input current of the electromagnetic conversion device to the preset maximum locking current, and the motor controller does not receive the detection signal from the Hall sensor within time T2, it returns to S1.

4. The propeller return-to-center control method according to claim 1, characterized in that: It also includes S0, where the motor controller detects whether the thruster assembly is stationary. If it is stationary, it jumps to S1; if it is not stationary, it provides a prompt.

5. The propeller return-to-center control method according to claim 4, characterized in that: S0 includes S01, where the motor controller detects whether the safety switch is closed. If it is closed, it jumps to S02; if it is open, it provides a prompt. S02: The motor controller detects whether the motor throttle is zero. If the throttle is zero, it jumps to S1. If the throttle is not zero, it issues a prompt.

6. A propeller return-to-center control method according to claim 4 or 5, characterized in that: The motor controller controls the sound-generating component to provide sound prompts and / or controls the display component to provide display prompts.

7. The propeller return-to-center control method according to claim 1, characterized in that: In S1, the motor drives the propeller to rotate clockwise.

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