Ducted hovercar and working method thereof

Abstract

The invention discloses a ducted hovercar and a working method thereof, and belongs to the technical field of hovercars. Four wheels of a hovercar body in the ducted hovercar are ducted wheels, and a ducted fan electric propulsion system is mounted in the ducted hovercar; a cockpit is arranged in the middle of the hovercar body, ducted fan electric propulsion systems are installed on the front portion and the rear portion of the cockpit respectively, and an openable and closable drag reduction protection mechanism is installed above the ducted fan electric propulsion systems. The ducted wheels are driven by a tilting control mechanism to move forwards and rotate outwards; the ducted fan electric propulsion system in the middle provides main power in the take-off preparation stage and the descending hovering stage, and the ducted fan electric propulsion systems in the four ducted wheels provide main power in the stable flight stage. The power of the aircraft and automobile wheels are effectively combined, stable conversion between a flying mode and a land mode can be achieved, and the aircraft is more like a flying automobile instead of a vertical take-off and landing aircraft.

Description

Technical Field

[0001] The present invention belongs to the technical field of flying cars, and in particular relates to a ducted flying car and a working method thereof. Background Art

[0002] The concept of flying cars originates from the combination of cars and airplanes, aiming to solve the problem of modern urban traffic congestion and realize a multifunctional vehicle that can travel on the ground and fly in the air. In recent years, with the development of electrification and intelligent technology, the design and manufacturing of flying cars have made significant progress, especially the application of electric vertical take-off and landing technology (eVTOL) and autonomous driving technology, which provide technical support for the research and development of flying cars.

[0003] Most of the existing designs of flying cars are of the exposed rotor type. The rotors are arranged around the car, and the aerodynamic characteristics of the rotors are controlled to achieve a flight mode equivalent to that of an aircraft. The car chassis is arranged at the bottom of the car body, thereby realizing the ground driving function of the car. When flying, the rotor arms extend outward, occupying a large area of ​​the body, affecting the flight performance. The exposed rotors are also easily affected by airflow and weather changes, which also increases the risk during the flight. And the fully exposed rotors are prone to safety hazards when starting.

[0004] There are also some ducted flying cars that can only achieve ordinary vertical take-off and landing. The ducted body cannot tilt, and the tilting ducted body cannot generate additional lift to increase flight stability. The duct cannot tilt, and the thrust direction cannot be adjusted as needed to enhance the flying car's maneuverability in the air. Summary of the invention

[0005] The present invention provides a ducted flying car and a working method thereof. Through a six-ducted fan electric propulsion system, four of which are tiltable and transformable, stable conversion between flight and land modes can be achieved, meeting the requirements for convenient, safe and stable operation of the flying car in a low-altitude urban environment, and improving the overall reliability and stability of the ducted flying car.

[0006] To achieve the above objectives, the present invention adopts the following technical solutions:

[0007] A ducted flying car comprises a flying car body, wherein the four wheels of the flying car body are all ducted wheels, and a ducted fan electric propulsion system is installed inside; a cockpit is arranged in the middle of the flying car body, and the ducted fan electric propulsion systems are installed in front and behind the cockpit respectively, and an openable and closable drag reduction protection mechanism is installed above the ducted fan electric propulsion system; the ducted wheels are driven forward and rotated outward by a tilt control mechanism; the ducted fan electric propulsion system in the middle provides the main power in the take-off preparation and landing hovering stages, and the ducted fan electric propulsion systems in the four ducted wheels provide the main power in the stable flight stage.

[0008] The ducted fan electric propulsion system includes a ducted fan and a motor control system, and the rotation of the ducted fan is controlled by the motor control system.

[0009] Beneficial effects: The present invention provides a ducted flying car and a working method thereof, which integrates the wheels of a car and the power system of a four-rotor. When on land, the flying car moves with ordinary wheels; when it is necessary to fly in the air, the wheels are rotated 90 degrees outward to form a horizontally placed four-axis rotor, and the front and rear ducted fan electric propulsion systems built into the body are turned on to form a six-axis aircraft together; the power of the aircraft and the car wheels are effectively combined, so that it can travel on land and fly in the air, making it more like a "flying car" rather than a vertical take-off and landing aircraft. The flight mode of the flying car of the present invention is powered by a ducted fan electric propulsion system. Compared with an open rotor propulsion system, the ducted fan electric propulsion system is safer and can effectively reduce the noise level, avoid the safety hazards caused by the exposed rotor, and can also suppress the tip vortex, so as to have higher aerodynamic efficiency. The suction effect of the high-speed rotation of the blades can generate additional lift for the duct body or the vehicle body. The duct reduces noise by suppressing the tip vortex and structural physical isolation. The four tiltable ducted fan electric propulsion systems outside the vehicle body can enable the flying car to switch between flight and land modes, and the switching method is efficient and safe. Moreover, the ducted wheels can be tilted during flight, and the thrust direction can be adjusted as needed to enhance the maneuverability of the flying car in the air. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a schematic diagram of the flight mode of the flying car in an embodiment of the present invention;

[0011] Figure 2 is a schematic top view of the flying mode of the flying car in an embodiment of the present invention;

[0012] Figure 3 is a schematic diagram of a flying car in land mode according to an embodiment of the present invention;

[0013] Figure 4 Schematic diagram of the motion trajectory of a flying car in an embodiment of the present invention.

[0014] In the figure, 1-flying car body, 2-ducted fan electric propulsion system, 3-drag reduction protection mechanism, 4-cockpit, 5-wheel, 6-tilt control mechanism, 201-ducted fan, 202-motor control system, 501-rubber tire, 502-wheel hub, 601-wheel axle. DETAILED DESCRIPTION

[0015] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments:

[0016] like Figure 1-3As shown, a ducted flying car includes a flying car body 1, a ducted fan electric propulsion system 2, a drag reduction protection mechanism 3, and a tilt control mechanism 6. A cockpit 4 is arranged in the middle of the flying car body 1, and wheels 5 are installed on both sides. The tilt control mechanism 6 integrates a wheel axle 601 with a tiltable end, and drives the wheel 5 to move on the road through the wheel hub 502; the inner ring structure of the wheel 5 is a ring duct, and the ducted fan electric propulsion system 2 is integrated in the wheel 5 as a whole.

[0017] The ducted fan electric propulsion system 2 includes a ducted fan 201 and a motor control system 202. The annular duct of the inner ring of the wheel 5 is equipped with the ducted fan 201. The motor control system 202 is connected to the fan and drives the ducted fan 201 to rotate. The tilt control mechanism 6 is integrated with a wheel shaft 601, and the wheel shaft 601 can drive the wheel 5 to rotate through the wheel hub 502. The ducted fan electric propulsion system 2 is integrated as a wheel 5. When the flying car needs to tilt, the middle section structural component of the tilt control mechanism 6 will extend outward for a distance. During this process, the rotating component connected to the wheel 5 at the end will also tilt upward. The two processes are carried out simultaneously to improve efficiency, and finally the wheel 5, i.e., the ducted propulsion system, is completed. It is equivalent to the entire tilt control system 6 being connected to the wheel 5, and the wheel 5 is the ducted fan electric propulsion system 2, in which the fan of the propulsion system is driven by the motor to rotate and generate thrust. The above process completes the work of the propulsion system in the flight mode, the tilt of the duct and the driving of the wheel.

[0018] like Figure 3 As shown, a ducted fan electric propulsion system 2 is installed on the front and rear of the cockpit 4 on the flying car body 1, and an openable and closable drag reduction protection mechanism 3 is installed above the ducted fan electric propulsion system 2. The drag reduction protection mechanism 3 can well maintain the aerodynamic shape of the car, and the protection of the fan blades ensures the safety of people getting on and off the car.

[0019] like Figure 4As shown, in the land mode, the four ducted wheel integrated systems on the periphery of the flying car body 1 serve as vehicle wheels 5, and the vehicle is driven on the road under the action of the wheel shaft 601 in the tilt control mechanism 6. In this mode, the six ducted fan electric propulsion systems 2 are in a closed state, and the vehicle is driven by the vehicle motor driving the wheel shaft 601 in the tilt control mechanism; when the flight mode is switched, the drag reduction protection mechanism 3 rotates open to allow the propulsion system to draw more air, and the six ducted fan electric propulsion systems 2 on the flying car body 1 all enter the micro-start state, the ducted fan 201 starts to rotate, and the motor control system 202 starts; when the driver in the cockpit 4 issues a flight command, the thrust generated by the full work of the two propulsion systems in the middle of the vehicle body can completely lift the body, and the ducted fan 201 rotates at full speed. When the flying car body 1 flies off the ground, the other four propulsion systems tilt at the ends of the shafts in the tilt control mechanism 6. Under the control of the mechanism, the tilt is transformed and the throttle is increased. At this time, with the support of the four propulsion systems outside the vehicle body, the two middle propulsion systems of the flying car body 1 can reduce the throttle to save energy; when the flying car body 1 lands, it descends to a certain set safe height and hovers, and the throttles of the two middle propulsion systems of the vehicle body are increased. During this process, the throttles of the four ducted fan electric propulsion systems 2 outside the vehicle body are reduced, and the flying car body 1 continues to maintain the hovering state. These four propulsion systems are finally shut down and returned to the wheel state under the action of the tilt control mechanism 6. At this time, the flying car body 1 lands smoothly to the ground with the throttles of the two middle propulsion systems reduced, the power of the two middle propulsion systems of the vehicle body is completely shut down, the drag reduction protection mechanism 3 is swung closed, and the flying car body 1 enters the land mode; the flight modes of the flying car in the air: yaw, forward and backward, and left and right rolling, are consistent with multi-rotor drones and are achieved through speed differences. When the flying car switches to flight mode, the rotor is installed in the duct, which avoids the safety hazards caused by the exposed rotor and suppresses the tip vortex. The ducted fan of the same diameter has higher aerodynamic efficiency than the open rotor. The suction effect of the high-speed rotation of the blades can also generate additional lift for the duct body or the car body.

[0020] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A ducted flying car, characterized in that: The four wheels of the flying car are all ducted wheels, and a ducted fan electric propulsion system is installed inside; the ducted fan electric propulsion systems are respectively installed at the front and rear of the middle surface of the flying car, and the ducted wheels can rotate outward 0-90°; the middle ducted fan electric propulsion system provides the main power during the take-off preparation and landing hovering stages, and the ducted fan electric propulsion systems in the four ducted wheels provide the main power during the stable flight stage.

2. The ducted flying vehicle according to claim 1, characterized in that: A cockpit is arranged in the middle of the flying car, and a ducted fan electric propulsion system is installed in front and behind the cockpit.

3. The ducted flying vehicle according to claim 2, characterized in that: An openable and closable drag reduction protection mechanism is installed above the ducted fan electric propulsion system installed in front and behind the cockpit.

4. The ducted flying vehicle according to claim 1 or 2, characterized in that: The ducted fan electric propulsion system includes a ducted fan and a motor control system, and the rotation of the ducted fan is controlled by the motor control system.

5. The ducted flying vehicle according to claim 4, characterized in that: The inner ring structure of the ducted wheel is a ring-shaped duct, and the ducted fan electric propulsion system is integrated into the wheel as a whole.

6. The ducted flying vehicle according to claim 5, characterized in that: The annular duct is equipped with a duct fan, and the motor control system is connected to the duct fan and drives the duct fan to rotate.

7. The ducted flying vehicle according to claim 1, characterized in that: The ducted wheel controls tilting and moving through a tilting control mechanism.

8. The ducted flying vehicle according to claim 6, characterized in that: The end of the tilt control mechanism is a tiltable wheel axle, and the wheel axle is connected to the wheel hub of the wheel.

9. The ducted flying vehicle according to claim 7 or 8, characterized in that: The tilt control mechanism is retractable.

10. The operating method of the ducted flying vehicle according to any one of claims 1 to 9, characterized in that: It drives on the road in land mode. When it needs to switch to flight mode, the change is initiated in the cockpit. During driving, the drag reduction protection structure is opened, and the two ducted fan electric propulsion systems in the middle of the vehicle body are fully started to fly off the ground. The other four propulsion systems are also in a micro-start state. Then the tilt control mechanism tilts the wheels to a horizontal state, and all propulsion systems work to complete takeoff. During the flight, the ducted fan electric propulsion system is driven by the tilt of the ducted wheels to adjust the thrust direction as needed.

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