An auxiliary starting method for small single-cylinder unmanned aerial vehicle

Abstract

The application discloses an auxiliary starting method for a small single-cylinder unmanned aerial vehicle, and comprises the following steps: S1, air with a temperature of 50-60 DEG C is introduced into an engine cabin along the cabin wall at a flow rate of 45-55 L / s; S2, after the air is introduced for 8-12 minutes, the engine is started every 1.5-2.5 minutes until the starting is successful. The scheme solves the problem of how to realize fast starting of the small single-cylinder unmanned aerial vehicle in a low-temperature environment and under the condition that the power supply is insufficient.

Description

TECHNICAL FIELD

[0001] The present application relates to an auxiliary starting method for a small single-cylinder unmanned aerial vehicle. BACKGROUND

[0002] In field training, small single-cylinder unmanned aerial vehicles are generally used as target vehicles for training. The volume of the engine cabin of the small single-cylinder unmanned aerial vehicle is generally below 20 liters. In training, the small single-cylinder unmanned aerial vehicle must take off within about half an hour. In a low-temperature environment, such as in the range of minus 40 degrees Celsius, the flowability of the engine oil and coolant of the small single-cylinder engine used by the small single-cylinder unmanned aerial vehicle is poor or even reaches the freezing point and cannot flow, thereby making it difficult to start the engine. The existing method generally uses burning kerosene or diesel to heat the engine. This method is not only inconvenient but also not environmentally friendly. In addition, when using this method during the day, the smoke produced by burning kerosene or diesel can expose the target, which can easily reduce the concealment of the target when taking off. When using this method at night, the light produced by burning can also expose the target, which can also easily reduce the concealment of the target when taking off. In the prior art, there are technical solutions that set up auxiliary heating devices to assist the engine in starting. However, in these solutions, the structure of the auxiliary heating device is generally complex and large in size, which requires high requirements for carrying and use, and generally uses fuel as a power source. Because in a low-temperature environment, the energy storage performance of a battery and other electric energy storage devices can be greatly reduced, which can easily lead to insufficient power supply and cannot meet the use of high-power heating devices. Therefore, how to ensure that the small single-cylinder unmanned aerial vehicle can be quickly started in a low-temperature environment and under conditions where power supply is easily insufficient has become a problem that must be solved. SUMMARY

[0003] The purpose of the present application is to provide an auxiliary starting method for a small single-cylinder unmanned aerial vehicle to solve the problem of how to quickly start the small single-cylinder unmanned aerial vehicle in a low-temperature environment and under conditions where power supply is easily insufficient in the prior art.

[0004] In order to achieve the above-mentioned purpose, the basic scheme of the present application provides an auxiliary starting method for a small single-cylinder unmanned aerial vehicle, comprising the following steps: S1, air with a temperature of 50-60 DEG C is introduced into the engine cabin along the cabin wall at a flow rate of 45-55 L / s; S2, after the air is introduced for 8-12 minutes, the engine is started every 1.5-2.5 minutes until it is successfully started.

[0005] The beneficial effect of the basic scheme is that through trial, the scheme can be used in an environment of minus 40℃, and a small single-cylinder engine in the cabin can be successfully started in about 30 minutes by using an 800W-1500W electric heating air device, the power consumption of the entire starting process is very low, the requirement for power supply is also very low, and the problem of how to realize the rapid starting of a small single-cylinder unmanned aerial vehicle in an environment of minus 40℃ and in the case of easy power supply shortage is solved.

[0006] Further, in step S1, the air inlet speed is between 10m / s-12 m / s. In this way, the air entering the cabin has a certain pressure, which is conducive to the flow of air in the cabin and rapid heating of the parts in the cabin, and further conducive to the rapid starting of the engine by a smaller power heating device.

[0007] Further, in step S1, the air enters the cabin through the air inlets at both ends of the cabin. In this way, it is conducive to further improving the heating efficiency of the air to the cabin, thereby further realizing the rapid starting of the engine by a smaller power heating device.

[0008] Further, in step S2, the engine is started every 2 minutes after the air inlet time of step S1 is greater than 10 minutes. In this way, it is conducive to the small distance movement of the engine oil in the pipeline at the time of starting, so that the oil can be better heated, and the starting time of the engine is further shortened. DETAILED DESCRIPTION

[0009] The following will be further described in detail through specific embodiments:

[0010] Embodiment: An auxiliary starting method for a small single-cylinder unmanned aerial vehicle, comprising the following steps: S1, air with a temperature of 50℃-60℃ is introduced into the engine cabin along the cabin wall at a flow rate of 45L / s-55L / s;

[0011] S2, when the air inlet time of step S1 is greater than 8-12 minutes, the engine is started every 1.5-2.5 minutes until the starting is successful.

[0012] Take the start of a small single-cylinder unmanned aerial vehicle with a cabin volume of 13 liters in an environment of -40℃ as an example. One air inlet is arranged at each end of the cabin. A power of 800W, an air outlet diameter of 53㎜, an air outlet wind speed of 11m / s, and an air outlet maximum temperature of 50℃ are adopted. The electric hair dryer is connected to the air inlet of the cabin, the air outlet of the electric hair dryer blows along the cabin wall, and the gap between the outer wall of the electric hair dryer and the inner wall of the air inlet of the cabin is sealed, so that the hot air circulates in the cabin. When the heating time is greater than 10 minutes, start the engine every 2 minutes, and the engine can be successfully started after 36 minutes of heating.

[0013] Take the start of a small single-cylinder unmanned aerial vehicle with a cabin volume of 13 liters in an environment of -40℃ as an example. One air inlet is arranged at each end of the cabin. A power of 800W, an air outlet diameter of 53㎜, an air outlet wind speed of 11m / s, and an air outlet maximum temperature of 50℃ are adopted. The electric hair dryer is connected to the air inlet of the cabin, the air outlet of the electric hair dryer blows along the cabin wall, and the gap between the outer wall of the electric hair dryer and the inner wall of the air inlet of the cabin is sealed, so that the hot air circulates in the cabin. When the heating time is greater than 10 minutes, start the engine every 2 minutes, and the engine can be successfully started after 36 minutes of heating.

[0014] Take the start of a small single-cylinder unmanned aerial vehicle with a cabin volume of 13 liters in an environment of -40℃ as an example. One air inlet is arranged at each end of the cabin. A power of 800W, an air outlet diameter of 53㎜, an air outlet wind speed of 11m / s, and an air outlet maximum temperature of 50℃ are adopted. The electric hair dryer is connected to the air inlet of the cabin, the air outlet of the electric hair dryer blows along the cabin wall, and the gap between the outer wall of the electric hair dryer and the inner wall of the air inlet of the cabin is sealed, so that the hot air circulates in the cabin. When the heating time is greater than 10 minutes, start the engine every 2 minutes, and the engine can be successfully started after 36 minutes of heating.

[0015] Take the start of a small single-cylinder unmanned aerial vehicle with a cabin volume of 13 liters in an environment of -40℃ as an example. One air inlet is arranged at each end of the cabin. A power of 800W, an air outlet diameter of 53㎜, an air outlet wind speed of 11m / s, and an air outlet maximum temperature of 50℃ are adopted. The electric hair dryer is connected to the air inlet of the cabin, the air outlet of the electric hair dryer blows along the cabin wall, and the gap between the outer wall of the electric hair dryer and the inner wall of the air inlet of the cabin is sealed, so that the hot air circulates in the cabin. When the heating time is greater than 10 minutes, start the engine every 2 minutes, and the engine can be successfully started after 36 minutes of heating.

[0016] The electric hair dryer with power of 800W-1500W is small in size and light in weight, convenient to carry, can be heated by connecting power supply, and improves the starting convenience of small single-cylinder unmanned plane in low temperature environment.

[0017] The above-mentioned is only the embodiment of the present application, and the common knowledge of specific structure and characteristics in the scheme is not described too much. It should be pointed out that for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should be considered as the protection scope of the present application, which will not affect the effect and practicality of the patent.

Claims

1. An auxiliary starting method for a small single-cylinder unmanned aerial vehicle, characterized in that, Includes the following steps: S1. Using an electrically heated air device, introduce air at a temperature of 50℃-60℃ into the engine compartment at a flow rate of 45L / s-55L / s along the compartment wall; S2. After the air introduction time in step S1 is greater than 8-12 minutes, start the engine every 1.5 minutes to 2.5 minutes until it starts successfully.

2. The auxiliary start-up method for a small single-cylinder unmanned aerial vehicle according to claim 1, characterized in that: In step S1, the air inlet velocity is between 10 m / s and 12 m / s.

3. The auxiliary start-up method for a small single-cylinder unmanned aerial vehicle according to claim 2, characterized in that: In step S1, the air inlet velocity is 11 m / s.

4. An auxiliary starting method for a small single-cylinder unmanned aerial vehicle according to claim 1, 2 or 3, characterized in that: In step S1, air enters the cabin through the air inlets at both ends of the cabin.

5. The auxiliary starting method for a small single-cylinder unmanned aerial vehicle according to claim 4, characterized in that: In step S2, after the air supply time in step S1 is greater than 10 minutes, the engine is started every 2 minutes.