Power surfboard control method and power surfboard

Abstract

The invention discloses a control method of a power surfboard and the power surfboard, and the control method of the power surfboard comprises the following steps: 1, a controller judges whether a fuel engine is in a running state or not; 2, the controller judges whether the actual electric quantity of the power battery is larger than a preset threshold value or not; 3, the controller judges whether the opening degree of the accelerator switch and the speed change rate of the jet powered surfboard are both larger than a preset threshold value or not, if yes, the controller controls the motor to enter a motor mode, and the motor provides auxiliary power for the fuel engine; if not, the controller controls the motor to enter a zero-torque state, and only the fuel engine provides power; 4, the controller judges whether the power battery is in an energy recovery mode or not, if yes, the controller controls the motor to enter a power generation motor mode, and the motor charges the power battery; and if not, turning to the step 3. The hybrid electric vehicle has the advantages that hybrid power of electric power and fuel oil can be adopted, and the requirements for strong power, good cruising ability and environmental protection are met.

Description

Technical Field

[0001] The present invention relates to the technical field of power surfboards, and in particular to a control method for a power surfboard and a power surfboard. Background Art

[0002] Surfing is a water sport in which athletes stand on a surfboard and use the waves to perform movements.

[0003] Traditional surfboards rely on natural waves and are limited in terms of use. Although pure electric surfboards are environmentally friendly, their power output and endurance are insufficient in some cases, such as the "High Stability Electric Surfboard" disclosed in the Chinese invention application with publication number CN118457829A and the "Electric Surfboard" disclosed in the Chinese utility model with authorization number CN219806945U. Although fuel surfboards have strong power and long endurance, they are noisy and polluting, and are not environmentally friendly enough, such as the "An Improved Gasoline Engine Powered Surfboard" disclosed in the Chinese utility model with authorization number CN220616121U.

[0004] Therefore, it is necessary to develop a hybrid power surfboard and a control method thereof to take into account the requirements of strong power, good endurance and environmental protection. Summary of the invention

[0005] The first technical problem to be solved by the present invention is to provide a control method suitable for a hybrid power surfboard in view of the current status of the prior art.

[0006] The second technical problem to be solved by the present invention is to provide a powered surfboard.

[0007] The present invention adopts a technical solution to solve the above-mentioned first technical problem: a control method of a power surfboard, characterized in that it includes the following steps:

[0008] Step 1: The controller determines whether the fuel engine is in operation. If yes, it proceeds to step 2; if not, the controller controls the motor to enter the starter motor mode, and the motor starts the fuel engine;

[0009] Step 2: The controller determines whether the actual power of the power battery is greater than a preset threshold value. If yes, the controller proceeds to step 3; if no, the controller proceeds to step 5;

[0010] Step 3: The controller determines whether the throttle switch opening and the speed change rate of the power surfboard are both greater than a preset threshold value. If both are yes, the controller controls the motor to enter the motor mode, and the motor provides auxiliary power to the fuel engine; if not, the controller controls the motor to enter the zero torque state, and only the fuel engine provides power;

[0011] Step 4: The controller determines whether it is in energy recovery mode. If so, the controller controls the motor to enter generator mode, and the motor charges the power battery; if not, proceed to step 3.

[0012] Preferably, in step one, the specific method for determining whether the fuel engine is in operation is as follows: a crankshaft sensor is provided on the fuel engine, the crankshaft sensor is used to detect the rotational speed of the crankshaft of the fuel engine, the crankshaft sensor is connected to the controller, and the controller determines whether the fuel engine is in operation based on the rotational speed signal transmitted by the crankshaft sensor.

[0013] Preferably, in the step 2, the specific method for judging whether the actual power of the power battery is greater than the preset threshold value is as follows: a measuring circuit is provided on the power battery, the measuring circuit is used to detect the power of the power battery, the measuring circuit is connected to the controller, and the controller judges whether the actual power of the power battery is greater than the preset threshold value according to the voltage signal transmitted by the measuring circuit.

[0014] Preferably, the power surfboard has a charging switch for user operation, and the charging switch is connected to the controller; in step 4, the method of determining whether it is in the energy recovery mode is:

[0015] The controller determines whether it is in energy recovery mode by simultaneously judging the following three conditions:

[0016] ①The controller determines whether the throttle switch opening is less than the preset value;

[0017] ② The controller determines whether the speed change rate of the power surfboard is less than a preset value;

[0018] ③The controller determines whether the user turns on the charging switch;

[0019] If conditions ①② are met at the same time, or condition ③ is met, it means it is in energy recovery mode;

[0020] Otherwise, it is not in energy recovery mode.

[0021] In this way, the controller can determine whether it is in energy recovery mode based on the operating conditions of the power surfboard and the user's operating instructions.

[0022] Preferably, in step three and step four, the specific method for determining the throttle switch opening and the speed change rate of the power surfboard is as follows: the power surfboard has a handle speed adjustment operating member for adjusting the forward speed of the power surfboard, and the handle speed adjustment operating member is provided with an angle sensor, and the angle sensor is used to detect the rotation amplitude and rotation rate of the handle speed adjustment operating member, and the angle sensor is connected to a controller, and the controller determines the throttle switch opening according to the angle signal transmitted by the angle sensor, and the controller determines the speed change rate of the power surfboard according to the rotation speed signal transmitted by the angle sensor.

[0023] Preferably, in step 4, the controller determines whether the user turns on the charging switch according to the switch signal output by the charging switch. The technical solution adopted by the present invention to solve the second technical problem is: a power surfboard, characterized in that: the control method of the power surfboard as described above is adopted.

[0024] Compared with the prior art, the advantages of the present invention are: by judging whether the fuel engine is in operation, whether the actual power of the power battery is greater than a preset threshold, whether the throttle switch opening and the speed change rate of the power surfboard are greater than the preset threshold, and whether it is in energy recovery mode, the motor is made to enter different modes (starting motor mode, electric motor mode, zero torque state, generator motor mode), so that the fuel engine can provide power, or the motor can superimpose torque on the fuel engine to provide auxiliary power to the fuel engine, so that the power surfboard can adopt a hybrid power of electricity and fuel, taking into account the needs of strong power, good endurance and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a flow chart of the control method of an embodiment of the present invention. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below with reference to the accompanying drawings.

[0027] See also Figure 1 , is a flow chart of a control method of a power surfboard of the present invention. Specifically, the control method of the power surfboard comprises the following steps:

[0028] Step 1: The controller (the controller uses a control circuit board) determines whether the fuel engine is in operation. If so, it proceeds to step 2; if not, the controller controls the motor to enter the starter motor mode, and the motor starts the fuel engine;

[0029] Step 2: The controller determines whether the actual power of the power battery is greater than a preset threshold value. If yes, the controller proceeds to step 3; if no, the controller proceeds to step 5;

[0030] Step 3, the controller determines whether the throttle switch opening and the speed change rate of the power surfboard are both greater than the preset threshold value. If both are yes, the controller controls the motor to enter the motor mode, and the motor provides auxiliary power to the fuel engine; if not, the controller controls the motor to enter the zero torque state, and only the fuel engine provides power; the preset threshold values ​​of the throttle switch opening and the speed change rate of the power surfboard are adjusted as needed, for example, when the throttle opening is set to 95% to 100%, it corresponds to the acceleration sprint stage, when the throttle opening is set to 50% to 75%, it corresponds to the charging stage, and when the throttle opening is set to 0% to 10%, it corresponds to the starting stage;

[0031] Step 4: The controller determines whether it is in energy recovery mode. If so, the controller controls the motor to enter generator mode, and the motor charges the power battery; if not, proceed to step 3.

[0032] The specific judgment method of each step is as follows.

[0033] In step one, the specific method for determining whether the fuel engine is in operation is as follows: a crankshaft sensor is provided on the fuel engine, and the crankshaft sensor is used to detect the rotation speed of the crankshaft of the fuel engine. The crankshaft sensor is connected to the controller, and the controller determines whether the fuel engine is in operation based on the rotation speed signal transmitted by the crankshaft sensor.

[0034] In step 2, the specific method for judging whether the actual power of the power battery is greater than the preset threshold is as follows: a measuring circuit is provided on the power battery, the measuring circuit is used to detect the power of the power battery, the measuring circuit is connected to the controller, and the controller judges whether the actual power of the power battery is greater than the preset threshold according to the voltage signal transmitted by the measuring circuit.

[0035] The power surfboard has a charging switch for user operation, such as a manually operated button or knob, and the charging switch is connected to the controller; in step 4, the method of determining whether it is in the energy recovery mode is as follows:

[0036] The controller determines whether it is in energy recovery mode by simultaneously judging the following three conditions:

[0037] ①The controller determines whether the throttle switch opening is less than the preset value;

[0038] ② The controller determines whether the speed change rate of the power surfboard is less than a preset value;

[0039] ③The controller determines whether the user turns on the charging switch;

[0040] If conditions ①② are met at the same time, or condition ③ is met, it means it is in energy recovery mode;

[0041] Otherwise, it is not in energy recovery mode.

[0042] In step 3 and step 4, the specific method for determining the throttle switch opening and the speed change rate of the power surfboard is as follows: the power surfboard has a handle speed adjustment operating member for adjusting the forward speed of the power surfboard, and the handle speed adjustment operating member is provided with an angle sensor, which is used to detect the rotation amplitude and rotation rate of the handle speed adjustment operating member, and the angle sensor is connected to the controller, and the controller determines the throttle switch opening according to the angle signal transmitted by the angle sensor, and the controller determines the speed change rate of the power surfboard according to the rotation speed signal transmitted by the angle sensor.

[0043] In step 4, the controller determines whether the user turns on the charging switch according to the switch signal output by the charging switch.

[0044] A powered surfboard adopts the above-mentioned control method for a powered surfboard.

[0045] The working principle and usage process are as follows.

[0046] 1) When the user turns on the power switch, the motor is used as a starting motor to start the fuel engine;

[0047] After the fuel engine is running, the controller analyzes the user's intention and makes the motor enter different working modes. The controller specifically analyzes the user's intention (sudden acceleration or medium-high speed cruising, etc.) through the throttle switch opening, the speed change rate of the power surfboard, etc.

[0048] 2) When the user adjusts the handle speed control element to accelerate, the power surfboard enters the rapid acceleration stage or the maximum throttle cruising stage, the motor is used as an electric motor to add torque to the fuel engine, and is used to provide auxiliary power to the fuel engine, and the motor and the fuel engine work together to output power;

[0049] 3) When the power surfboard is cruising at medium or high speed, or when the user turns on the charging switch, energy recovery is performed, and the motor is used as a generator to charge the power battery;

[0050] 4) When the power battery is low or acceleration is not needed temporarily, the motor is in a zero torque state and only the fuel generator provides power to the thruster.

[0051] Such a powered surfboard can use a hybrid power of electricity and fuel, taking into account the needs of strong power, good endurance and environmental protection.

Claims

1. A method for controlling a powered surfboard, characterized in that: The following steps are involved: Step 1: The controller determines whether the fuel engine is in operation. If yes, it proceeds to step 2; if not, the controller controls the motor to enter the starter motor mode, and the motor starts the fuel engine; Step 2: The controller determines whether the actual power of the power battery is greater than a preset threshold value. If yes, the controller proceeds to step 3; if no, the controller proceeds to step 5; Step 3: The controller determines whether the throttle switch opening and the speed change rate of the power surfboard are both greater than a preset threshold value. If both are yes, the controller controls the motor to enter the motor mode, and the motor provides auxiliary power to the fuel engine; if not, the controller controls the motor to enter the zero torque state, and only the fuel engine provides power; Step 4: The controller determines whether it is in energy recovery mode. If so, the controller controls the motor to enter generator mode, and the motor charges the power battery; if not, proceed to step 3.

2. The control method according to claim 1, characterized in that: In the step 1, the specific method for judging whether the fuel engine is in operation is as follows: a crankshaft sensor is provided on the fuel engine, and the crankshaft sensor is used to detect the rotation speed of the crankshaft of the fuel engine. The crankshaft sensor is connected to the controller, and the controller judges whether the fuel engine is in operation according to the rotation speed signal transmitted by the crankshaft sensor.

3. The control method according to claim 1, characterized in that: In the step 2, the specific method for judging whether the actual power of the power battery is greater than the preset threshold is as follows: a measuring circuit is provided on the power battery, the measuring circuit is used to detect the power of the power battery, the measuring circuit is connected to the controller, and the controller judges whether the actual power of the power battery is greater than the preset threshold according to the voltage signal transmitted by the measuring circuit.

4. The control method according to claim 1, characterized in that: The power surfboard has a charging switch for user operation, and the charging switch is connected to the controller; in step 4, the method of determining whether it is in the energy recovery mode is: The controller determines whether it is in energy recovery mode by simultaneously judging the following three conditions: ①The controller determines whether the throttle switch opening is less than the preset value; ② The controller determines whether the speed change rate of the power surfboard is less than a preset value; ③The controller determines whether the user turns on the charging switch; If conditions ①② are met at the same time, or condition ③ is met, it means it is in energy recovery mode; Otherwise, it is not in energy recovery mode.

5. The control method according to claim 4, characterized in that: In step 3 and step 4, the specific method for determining the throttle switch opening and the speed change rate of the power surfboard is as follows: the power surfboard has a handle speed adjustment operating member for adjusting the forward speed of the power surfboard, and the handle speed adjustment operating member is provided with an angle sensor, and the angle sensor is used to detect the rotation amplitude and rotation rate of the handle speed adjustment operating member, and the angle sensor is connected to the controller, and the controller determines the throttle switch opening according to the angle signal transmitted by the angle sensor, and the controller determines the speed change rate of the power surfboard according to the rotation speed signal transmitted by the angle sensor.

6. The control method according to claim 4, characterized in that: In the step 4, the controller determines whether the user turns on the charging switch according to the switch signal output by the charging switch.

7. A powered surfboard, characterized in that: A control method for a power surfboard as claimed in any one of claims 1 to 6 is adopted.

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