Method and device for testing flight test of hovercar

Abstract

The invention belongs to the technical field of flying vehicles, and particularly relates to a flying car flight test testing method and device. The device comprises a flight unit module ground test bench, a power supply distribution device, a heat dissipation system, a data acquisition card, a ground control module, a monitoring module, a mooring crane tool, a ground mooring fixing module, a hoisting module and a hovercar. The flight unit module ground test bench comprises a support, a flight unit driver, a flight unit, a flight controller module, a power battery and a power distribution module. The method comprises a flight unit module ground test unit, a flight unit module mooring test unit, a hovercar mooring test unit and a hovercar flight test unit. According to the invention, a module-divided and staged test method is adopted, the real environment of the flight unit in vehicle use is fully considered, the test error is small, the safety is high, the applicability is strong, the design and development period is shortened, and the economic cost is reduced, so that the development efficiency of the hovercar is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of flying vehicles, and particularly relates to a flight test method and device for a flying car. Background Art

[0002] With the rapid development of technology, flying cars have profound social, economic, environmental and strategic significance. First of all, by constructing a "ground-air" three-dimensional transportation network, it can effectively alleviate urban traffic congestion, achieve point-to-point direct transportation, and greatly improve travel efficiency. For example, during peak hours of traditional ground transportation, the average speed is less than 20 kilometers per hour, while a flying car can reach 150-200 kilometers per hour, shortening the commuting time by 80%, bringing a revolutionary change to urban transportation. Secondly, the flying car industry chain covers multiple fields such as aviation manufacturing, new energy, and artificial intelligence, promoting the development of emerging industrial ecosystems such as air taxi services and logistics drone deliveries.

[0003] The flight test of a flying car is an essential and important link in its R & D and design. A flying car needs to drive on land and fly in the air. The flight test will verify the reliability of the design scheme, thereby optimizing flight performance, and at the same time providing an important basis for the safety of the flying car. However, for the test of new special vehicles, there is currently no standard test method and device; currently, the test methods for conventional small drones have poor safety and relatively simple systems; the test process of large flying machines is cumbersome and time-consuming, and the cost is relatively high; none of them can meet the special requirements of flying cars for driving on land and flying in the air.

[0004] Therefore, there is an urgent need for a flight test method and device for a flying car at present. Summary of the Invention

[0005] (1) Technical Problems to be Solved

[0006] The technical problem to be solved by the present invention is: in view of the needs of the prior art, how to provide a flight test method and device for a flying car to solve the problems of poor safety, high cost, and long cycle existing in the flight test process of the flying car in the prior art, improve the flight test efficiency of the flying car, and this method also has a very wide application prospect in the R & D process of the flying car.

[0007] (2) Technical Solutions

[0008] To solve the above technical problems, the present invention provides a flight test method for a flying car, and the test method is implemented based on a flight test device for a flying car. The flight test device for a flying car includes: a ground test bench for a flight unit module, a power distribution device, a heat dissipation system, a data acquisition card, a ground control module, a monitoring module, a mooring lifting tooling, a ground mooring fixing module, and a lifting module;

[0009] The ground test bench for the flight unit module includes: a bracket in the form of a cuboid, a flight unit driver, a flight unit, a flight controller module, a power battery, and a power distribution module;

[0010] The test method includes: the ground test link of the flight unit module, the tethered test link of the flight unit module, the tethered test link of the flying car, and the flight test link of the flying car;

[0011] Step 1: First, conduct the ground test link of the flight unit module;

[0012] Determine the quantity and spatial arrangement of the flight units, and arrange the flight units on the bracket of the ground test bench for the flight unit module according to the similarity principle;

[0013] Step 2: Confirm whether Step 1 meets the design requirements. If it does not meet the requirements, repeat Step 1 until all assessment indicators meet the standard value range of the indicators; after meeting the requirements, lift the ground test bench for the flight unit module by the tethered lifting tooling and the lifting module, and at the same time, fix and connect the ground tethered fixing module to the four corners under the ground test bench for the flight unit module through ropes; then conduct the tethered test link of the flight unit module;

[0014] Step 3: Confirm whether Step 2 meets the design requirements. If it does not meet the requirements, repeat Step 1; if it meets the requirements, fix and connect the ground tethered fixing module to the four corners under the flying car through ropes, and then conduct the tethered test link of the flying car;

[0015] Step 4: Confirm whether Step 3 meets the design requirements. If it does not meet the requirements, repeat Step 3 until all assessment indicators meet the standard value range of the indicators; if it meets the requirements, separate the ground tethered fixing module from the flying car, and then conduct the flight test link of the flying car.

[0016] Among them, in Step 1, there are four flight units, which are arranged at the four corners of the top of the bracket according to the overall aerodynamic layout, and the power battery and the power distribution module are placed in the middle of the bracket; four flight unit drivers are matched with the flight units one by one and placed above the bracket; the flight controller module is placed at the center of gravity of the bracket;

[0017] The heat dissipation system is connected to the flight unit driver and the flight unit through pipelines;

[0018] The power distribution device is connected to the power distribution module through cables, the power battery is connected to the power distribution module through cables, and the power distribution module is connected to the flight unit driver through cables; the monitoring module is connected to the flight controller module through a data acquisition card, and the ground control module is connected to the flight controller module through a communication cable.

[0019] Among them, in the said step 1, the flight controller module includes: a flight controller, a wireless data transceiver, and an information box;

[0020] The monitoring module includes: a flight unit performance display module and a power battery performance display module;

[0021] The ground control module includes: a remote controller, a ground station, and a safety protection module;

[0022] The safety protection module is used to preset protection values for parameter values of tensile force, voltage, current, infrared temperature, commutation speed, optoelectronic speed, total power, and amplitude displacement;

[0023] When the test value reaches the protection value, the safety protection module executes an alarm (the position of the real-time data display turns "red" and flashes, and the device emits an alarm sound) and executes the throttle locking operation.

[0024] Among them, in the said step 1, the heat dissipation system includes: a water tank, an oil tank, a heat dissipation fan, and a temperature sensor, which are used to meet the temperature control requirements for heat dissipation of the flight unit and the flight unit driver;

[0025] The power distribution device includes: a current control module, a voltage control module, and a bidirectional transmission module, which are used to meet the power consumption requirements of the flight unit driver;

[0026] The adjustment range of the voltage control module is 10V - 1100V;

[0027] The flight unit includes: a thrust module and a drive motor; the thrust module includes: a rotor and a ducted fan.

[0028] Among them, in the said step 2, the legs under the bracket are provided with buffer rubber pads, and the bracket is provided with an interface for mating installation with the mooring lifting tooling;

[0029] The lifting module is connected to the mooring lifting tooling by an elastic cable;

[0030] The lifting module includes: a crane and a traveling crane.

[0031] Among them, the flying car includes: a chassis module, a body module, a power module, a flight module, an electromechanical module, and an information module;

[0032] The monitoring module is connected to the information module through a data acquisition card, and the ground control module is connected to the flight module;

[0033] The flight module includes: a flight controller module and a flight unit;

[0034] Among them, the flight controller module and the flight unit in the flight module are obtained by disassembling and assembling the flight controller module, wireless data transmission, and flight unit from the ground test bench of the flight unit module after the end of step 2 and passing the tether test unit test of the flight unit module, and then loading them onto the flying car.

[0035] Among them, in the said step 4, the flying car communicates and controls with the ground control module through wireless signals.

[0036] In addition, the present invention also provides a flying car flight test device, which includes: a ground test bench for the flight unit module, a power distribution device, a heat dissipation system, a data acquisition card, a ground control module, a monitoring module, a tether lifting tooling, a ground tether fixing module, and a lifting module;

[0037] The ground test bench for the flight unit module includes: a bracket in the form of a cuboid, a flight unit driver, a flight unit, a flight controller module, a power battery, and a power distribution module;

[0038] There are four flight units, which are arranged at the four corners of the top of the bracket according to the overall aerodynamic layout. The power battery and the power distribution module are placed in the middle of the bracket; the four flight unit drivers are matched with the flight units one by one and placed above the bracket; the flight controller module is placed at the center of gravity of the bracket;

[0039] The heat dissipation system is connected to the flight unit driver and the flight unit through pipelines;

[0040] The power distribution device is connected to the power distribution module through cables, the power battery is connected to the power distribution module through cables, and the power distribution module is connected to the flight unit driver through cables; the monitoring module is connected to the flight controller module through the data acquisition card, and the ground control module is connected to the flight controller module through communication cables.

[0041] Among them, the flight controller module includes: a flight controller, wireless data transmission, and an information box;

[0042] The monitoring module includes: a flight unit performance display module and a power battery performance display module;

[0043] The ground control module includes: a remote controller, a ground station, and a safety protection module;

[0044] The safety protection module is used to preset the protection values for the parameter values of tension, voltage, current, infrared temperature, commutation speed, photoelectric speed, total power, and amplitude displacement;

[0045] When the test value reaches the protection value, the safety protection module executes an alarm (the real-time data display position "turns red" and blinks, and the device emits an alarm sound) and executes the throttle locking operation;

[0046] The heat dissipation system includes: a water tank, an oil tank, a heat dissipation fan, and a temperature sensor, which are used to meet the temperature control requirements for heat dissipation of the flight unit and the flight unit driver;

[0047] The power distribution device includes: a current control module, a voltage control module, and a bidirectional transmission module, which are used to meet the power consumption requirements of the flight unit driver;

[0048] The adjustment range of the voltage control module is 10V - 1100V;

[0049] The flight unit includes: a thrust module and a drive motor; the thrust module includes: a rotor and a ducted fan.

[0050] Among them, the legs under the bracket are provided with buffer rubber pads, and the bracket is provided with an interface for mating installation with the mooring lifting tooling;

[0051] The lifting module is connected to the mooring lifting tooling by an elastic cable;

[0052] The lifting module includes: a crane and a traveling crane;

[0053] The flying car includes: a chassis module, a body module, a power module, a flight module, an electromechanical module, and an information module;

[0054] The monitoring module is connected to the information module through a data acquisition card, and the ground control module is connected to the flight module;

[0055] The flight module includes: a flight controller module and a flight unit;

[0056] Among them, the flight controller module and the flight unit in the flight module are obtained by disassembling and installing the flight controller module, wireless data transmission, and flight unit from the ground test bench of the flight unit module after the tethered test link of the flight unit module, and then loading them onto the flying car;

[0057] The flying car communicates and controls with the ground control module through wireless signals.

[0058] (III) Beneficial effects

[0059] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0060] (1) The present invention adopts a modular and phased testing method, which ensures the rigorous reliability and safety of the flight test by carrying out the flight unit module ground test, the flight unit module tethered test, the flying car tethered test and the flying car flight test in sequence.

[0061] (2) The present invention sets up a ground test bench for the flight unit module and matches it with auxiliary systems such as a heat dissipation system and a power distribution device, fully considering the actual environment in which the flight unit is used in the vehicle. The test error is small, providing important data support for the flight test of the flying car.

[0062] (3) The present invention adopts a frame test bench and a tethered lifting tool, which can be promoted and applied to the testing of different flight unit modules of flying cars or aircraft. It has strong applicability, shortens the design and development cycle, reduces economic costs, and thus improves the efficiency of flying car research and development.

[0063] (4) During ground testing, the present invention is equipped with a power battery, a power distribution module, and a power distribution device. On the one hand, the power battery serves as a backup power source to ensure the power requirements of the flight unit under different test conditions. At the same time, the power battery meets the impact of the acceleration and deceleration reverse electromotive force on the power grid, thereby ensuring the safety of the test.

[0064] (5) The application of the above-mentioned flight test method and device can guide the research and development and test verification of flying vehicles, and solve key technical problems such as flight test in the field of flying vehicles. In addition, the flight test data obtained can also provide strong support for applications in health monitoring, structural fault diagnosis, etc. of flying vehicles, and has broad application prospects and benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] Figure 1 This is a test flow chart of the flying car flight test of the present invention;

[0066] Figure 2 is a schematic diagram of a ground test unit for a flight unit module of the present invention;

[0067] Figure 3 is an axial view of the flight unit module ground test bench of the present invention;

[0068] Figure 4 This is a front view of the flight unit module ground test bench of the present invention;

[0069] Figure 5 is a side view of a ground test bench for a flight unit module according to the present invention;

[0070] Figure 6 is a top view of the ground test bench for the flight unit module of the present invention;

[0071] Figure 7Schematic diagram of the tethered test unit of the flight unit module of the present invention;

[0072] Figure 8 Axonometric view of the tethered lifting tooling of the present invention;

[0073] Figure 9 Schematic diagram of the tethered test unit of the flying car of the present invention;

[0074] Figure 10 Front view of the flying car of the present invention;

[0075] Figure 11 Side view of the flying car of the present invention;

[0076] Figure 12 Top view of the flying car of the present invention.

[0077] 0-1-Ground test unit of the flight unit module, 0-2-Tethered test unit of the flight unit module, 0-3-Tethered test unit of the flying car, 0-4-Flight test unit of the flying car

[0078] 1-Ground test bench of the flight unit module, 2-Power distribution device, 3-Heat dissipation system, 4-Data acquisition card, 5-Ground control module, 6-Monitoring module, 7-Tethered lifting tooling, 9-Ground tethered fixing module, 9-Lifting module, 10-Flying car

[0079] 1-1-Bracket, 1-2-Flight unit driver, 1-3-Flight unit, 1-4-Flight controller module, 1-5-Power battery, 1-6-Power distribution module Specific implementation manners

[0080] To make the objectives, contents, and advantages of the present invention clearer, the following further describes in detail the specific implementation manners of the present invention with reference to the accompanying drawings and embodiments.

[0081] To solve the above technical problems, the present invention provides a flight test method for a flying car. The test method is implemented based on a flight test device for a flying car. The flight test device for a flying car includes: a ground test bench for a flight unit module, a power distribution device, a heat dissipation system, a data acquisition card, a ground control module, a monitoring module, a tethered lifting tooling, a ground tethered fixing module, and a lifting module;

[0082] The ground test bench for the flight unit module includes: a bracket in the form of a cuboid, a flight unit driver, a flight unit, a flight controller module, a power battery, and a power distribution module;

[0083] The test method includes: a ground test link for the flight unit module, a tethered test link for the flight unit module, a tethered test link for the flying car, and a flight test link for the flying car;

[0084] Step 1: First, conduct the ground test session of the flight unit module;

[0085] Determine the number and spatial arrangement of the flight units, and arrange the flight units on the brackets of the ground test bench of the flight unit module according to the similarity principle;

[0086] Step 2: Confirm whether Step 1 meets the design requirements. If it does not meet the requirements, restart Step 1 until all the assessment indicators meet the standard value range of the indicators; after meeting the requirements, lift the ground test bench of the flight unit module by means of the mooring lifting tooling and the lifting module, and at the same time fixedly connect the ground mooring fixed module to the four corners under the ground test bench of the flight unit module through ropes; then conduct the mooring test session of the flight unit module;

[0087] Step 3: Confirm whether Step 2 meets the design requirements. If it does not meet the requirements, restart Step 1; if it meets the requirements, fixedly connect the ground mooring fixed module to the four corners under the flying car through ropes, and then conduct the mooring test session of the flying car;

[0088] Step 4: Confirm whether Step 3 meets the design requirements. If it does not meet the requirements, restart Step 3 until all the assessment indicators meet the standard value range of the indicators; if it meets the requirements, separate the ground mooring fixed module from the flying car, and then conduct the flight test session of the flying car.

[0089] Among them, in Step 1, there are four flight units, which are arranged at the four corners of the top of the bracket according to the overall aerodynamic layout, and the power battery and the power distribution module are placed in the middle of the bracket; four flight unit drivers are matched with the flight units one by one and placed above the bracket; the flight controller module is placed at the center of gravity of the bracket;

[0090] The heat dissipation system is connected to the flight unit driver and the flight unit through pipelines;

[0091] The power distribution device is connected to the power distribution module through cables, the power battery is connected to the power distribution module through cables, and the power distribution module is connected to the flight unit driver through cables; the monitoring module is connected to the flight controller module through a data acquisition card, and the ground control module is connected to the flight controller module through a communication cable.

[0092] Among them, in Step 1, the flight controller module includes: a flight controller, a wireless data transmission, and an information box;

[0093] The monitoring module includes: a flight unit performance display module and a power battery performance display module;

[0094] The ground control module includes: a remote controller, a ground station, and a safety protection module;

[0095] The safety protection module is used to preset the protection values for the parameter values of tensile force, voltage, current, infrared temperature, commutation speed, photoelectric speed, total power, and amplitude displacement;

[0096] When the test value reaches the protection value, the safety protection module executes an alarm (the real-time data display position "turns red" and flashes, and the device emits an alarm sound) and executes the throttle locking operation.

[0097] Among them, in the step 1, the heat dissipation system includes: a water tank, an oil tank, a heat dissipation fan, and a temperature sensor, which are used to meet the temperature control requirements for heat dissipation of the flight unit and the flight unit driver;

[0098] The power distribution device includes: a current control module, a voltage control module, and a bidirectional transmission module, which are used to meet the power consumption requirements of the flight unit driver;

[0099] The adjustment range of the voltage control module is 10V - 1100V;

[0100] The flight unit includes: a thrust module and a drive motor; the thrust module includes: a rotor and a ducted fan.

[0101] Among them, in the step 2, the legs under the bracket are provided with buffer rubber pads, and the bracket is provided with an interface for mating installation with the mooring lifting tooling;

[0102] An elastic cable is used to connect the lifting module and the mooring lifting tooling;

[0103] The lifting module includes: a crane and a traveling crane.

[0104] Among them, the flying car includes: a chassis module, a body module, a power module, a flight module, an electromechanical module, and an information module;

[0105] The monitoring module is connected to the information module through a data acquisition card, and the ground control module is connected to the flight module;

[0106] The flight module includes: a flight controller module and a flight unit;

[0107] Among them, the flight controller module and the flight unit in the flight module are obtained by disassembling and installing the flight controller module, wireless data transmission, and flight unit from the ground test bench of the flight unit module after the end of step 2 and passing the test link of the flight unit module mooring test unit, and then loading them onto the flying car.

[0108] Among them, in the step 4, the flying car communicates and controls with the ground control module through wireless signals.

[0109] In addition, the present invention also provides a flight test device for a flying car, and the flight test device for the flying car includes: a ground test bench for the flight unit module, a power distribution device, a heat dissipation system, a data acquisition card, a ground control module, a monitoring module, a mooring suspension tooling, a ground mooring fixing module, and a lifting module;

[0110] The ground test bench for the flight unit module includes: a bracket in the form of a cuboid, a flight unit driver, a flight unit, a flight controller module, a power battery, and a power distribution module;

[0111] There are four flight units, which are arranged at the four corners of the top of the bracket according to the overall aerodynamic layout, and the power battery and the power distribution module are placed in the middle of the bracket; the four flight unit drivers are matched with the flight units one by one and placed above the bracket; the flight controller module is placed at the center of gravity of the bracket;

[0112] The heat dissipation system is connected to the flight unit driver and the flight unit through pipelines;

[0113] The power distribution device is connected to the power distribution module through a cable, the power battery is connected to the power distribution module through a cable, and the power distribution module is connected to the flight unit driver through a cable; the monitoring module is connected to the flight controller module through a data acquisition card, and the ground control module is connected to the flight controller module through a communication cable.

[0114] Among them, the flight controller module includes: a flight controller, a wireless data transmission device, and an information box;

[0115] The monitoring module includes: a flight unit performance display module and a power battery performance display module;

[0116] The ground control module includes: a remote controller, a ground station, and a safety protection module;

[0117] The safety protection module is used to preset protection values for parameter values of tensile force, voltage, current, infrared temperature, commutation speed, photoelectric speed, total power, and amplitude displacement;

[0118] When the test value reaches the protection value, the safety protection module executes an alarm (the position of the real-time data display turns "red" and flashes, and the device emits an alarm sound) and executes the throttle locking operation;

[0119] The heat dissipation system includes: a water tank, an oil tank, a heat dissipation fan, and a temperature sensor, which are used to meet the temperature control requirements for heat dissipation of the flight unit and the flight unit driver;

[0120] The power distribution device includes: a current control module, a voltage control module, and a bidirectional transmission module, which are used to meet the power consumption requirements of the flight unit driver;

[0121] The adjustment range of the voltage control module is 10V - 1100V;

[0122] The flight unit includes: a thrust module and a driving motor; the thrust module includes: a rotor and a ducted fan.

[0123] Among them, the legs under the bracket are provided with buffer rubber pads, and the bracket is provided with an interface for mating and installing with the mooring lifting tooling;

[0124] An elastic cable is used to connect the lifting module and the mooring lifting tooling;

[0125] The lifting module includes: a crane and a traveling crane;

[0126] The flying car includes: a chassis module, a body module, a power module, a flight module, an electromechanical module, and an information module;

[0127] The monitoring module is connected to the information module through a data acquisition card, and the ground control module is connected to the flight module;

[0128] The flight module includes: a flight controller module and a flight unit;

[0129] Among them, the flight controller module and the flight unit in the flight module are obtained by disassembling and installing the flight controller module, wireless data transmission, and flight unit from the ground test bench of the flight unit module after the mooring test link of the flight unit module, and then loading them onto the flying car;

[0130] The flying car communicates and controls with the ground control module through wireless signals.

[0131] Embodiment 1

[0132] This embodiment provides a flying car flight test method and device, and its test process is as follows:

[0133] Such as Figures 10 - 12As shown in the figure, the flight test of the 1-ton flying car is divided into four stages: ground test of the flight unit module, tethered test of the flight unit module, tethered test of the flying car, and flight test of the flying car. The flying car adopts a distributed 4-axis 8-propeller configuration, and the flight unit is a rotor-plus-motor solution; the 4-axis 8-propeller aerodynamic layout is installed on the ground test bench of the flight unit module at a ratio of 1:1. At the same time, the flight controller module is installed at the center of gravity of the ground test bench of the flight unit module. According to the overall design, both the motor and the flight unit driver adopt a water-cooled cooling method, and the heat dissipation system is connected to the flight unit driver and the motor through pipelines, and the outlet temperature of the cooling water is set to 65°C; both the motor and the flight unit driver adopt an air-cooled cooling method, and the heat dissipation system can be not used. The rated discharge power of the power battery is 120kW and the capacity is 30 degrees, which is connected to the power distribution module as a backup power supply for the flight unit; the power distribution device is connected to the power distribution module as the main power supply through a cable, and the power distribution module is connected to the flight unit driver through a cable. The monitoring module is connected to the flight controller module through a data acquisition card, and is used to receive and monitor the performance of the flight unit, power performance, etc. of the ground test bench of the flight unit module; the ground control module is connected to the flight controller module through a communication cable, and the ground control module sends test instructions and receives status monitoring through two operating means: a ground station and a remote control. At the same time, the safety protection module on the ground control module sets protection for parameter values such as tension, voltage, current, infrared temperature, commutation speed, photoelectric speed, total power, amplitude displacement, etc.; when the test value reaches the protection value, the software executes an alarm (the position of the real-time data display turns "red" and flashes, and the device emits an alarm sound); when the test value reaches the protection value, an alarm can be executed and the throttle can be locked. As Figures 2 - 6 As shown in the figure, after confirming that the connections of all devices are normal, set the output voltage of the power distribution device to 900V and start it; then perform the ground test of the flight unit module through the ground control module, and perform the acceleration, deceleration and long-time operation of the flight unit; when the flight unit runs at 70% of the rated speed for 10 hours without failure, the tethered test of the flight unit module can be carried out.

[0134] As Figures 7 - 8 As shown in the figure, install the tethered lifting tooling in cooperation with the ground test bench of the flight unit, and then lift the ground test bench of the flight unit module through the lifting module. At the same time, fix and connect the ground tethered fixing module through ropes at the four corners under the ground test bench of the flight unit module; after confirming that the connections of all devices are normal, carry out the tethered test of the flight unit module. Perform the tethered test of the flight unit module through the ground control module, and vertically lift the ground test bench of the flight unit module from 0.5m to 3m; perform hover, forward flight, backward flight, left flight, right flight, and yaw movement tests respectively; after testing for 30 minutes without failure at each height, it can be converted to the tethered test of the flying car.

[0135] As Figure 9 shown, the four corners under the flying car are fixedly connected to the ground mooring fixing module through ropes, and then the mooring test of the flying car is carried out. The monitoring module is connected to the information module on the flying car through a data acquisition card, and the ground control module is connected to the flight module of the flying car. The mooring test of the flying car is carried out through the ground control module, and the vertical lift-off height of the flying car ranges from 0.5 m to 10 m; the hover, forward flight, backward flight, left flight, right flight, and yaw movement tests are carried out respectively; after 30 minutes of no fault occurrence are tested at each height, the flying car flight test can be converted. The ground mooring fixing module is separated from the flying car, and the ground control module communicates and controls the flying car through wireless signals. The vertical lift-off height of the flying car reaches 10 m; the hover, forward flight, backward flight, left flight, right flight, and yaw movement tests are carried out respectively; after 30 minutes of no fault occurrence are tested at each height, the flight test can be completed.

[0136] According to the flight test information predicted by the above steps, it is possible to further observe and analyze whether the flying car meets the technical requirements, which can guide the optimization design of the flying car performance. In addition, it can also provide strong support for the applications in aspects such as the health monitoring and structural fault diagnosis of the flying car, and has broad application prospects and benefits.

[0137] The above description is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and deformations can be made, and these improvements and deformations should also be regarded as the protection scope of the present invention.

Claims

1. A flight test method for a flying car, characterized in that, The described test method is implemented based on a flight test device for a flying car. The flight test device for the flying car includes: a ground test bench for the flight unit module, a power distribution device, a heat dissipation system, a data acquisition card, a ground control module, a monitoring module, a mooring sling tooling, a ground mooring and fixing module, and a lifting module; The ground test bench for the flight unit module includes: a bracket in the form of a cuboid, a flight unit driver, a flight unit, a flight controller module, a power battery, and a power distribution module; The test method includes: a ground test link for the flight unit module, a mooring test link for the flight unit module, a mooring test link for the flying car, and a flight test link for the flying car; Step 1: First, conduct the ground test link for the flight unit module; Determine the number and spatial arrangement of the flight units, and arrange the flight units on the brackets of the ground test bench for the flight unit module according to the similarity principle; Step 2: Confirm whether Step 1 meets the design requirements. If it does not meet the requirements, repeat Step 1 until all the assessment indicators meet the standard value range of the indicators; after meeting the requirements, lift the ground test bench for the flight unit module by the mooring sling tooling and the lifting module, and at the same time, fixedly connect the ground mooring and fixing module to the four corners under the ground test bench for the flight unit module through ropes; then conduct the mooring test link for the flight unit module; Step 3: Confirm whether Step 2 meets the design requirements. If it does not meet the requirements, repeat Step 1; if it meets the requirements, fixedly connect the ground mooring and fixing module to the four corners under the flying car through ropes, and then conduct the mooring test link for the flying car; Step 4: Confirm whether Step 3 meets the design requirements. If it does not meet the requirements, repeat Step 3 until all the assessment indicators meet the standard value range of the indicators; if it meets the requirements, separate the ground mooring and fixing module from the flying car, and then conduct the flight test link for the flying car.

2. The flight test method of a flying car according to claim 1, wherein In Step 1, there are four flight units, which are arranged at the four corners of the top of the bracket according to the overall aerodynamic layout. The power battery and the power distribution module are placed in the middle of the bracket; the four flight unit drivers are matched with the flight units one by one and placed above the bracket; the flight controller module is placed at the center of gravity of the bracket; The heat dissipation system is connected to the flight unit driver and the flight unit through pipelines; The power distribution device is connected to the power distribution module through cables, the power battery is connected to the power distribution module through cables, and the power distribution module is connected to the flight unit driver through cables; the monitoring module is connected to the flight controller module through the data acquisition card, and the ground control module is connected to the flight controller module through communication cables.

3. The flight test method of the flying car according to claim 1, wherein In Step 1, the flight controller module includes: a flight controller, a wireless data transmission device, and an information box; The monitoring module includes: a flight unit performance display module and a power battery performance display module; The ground control module includes: a remote control, a ground station, and a safety protection module; The safety protection module is used to preset the protection values for the parameter values of tensile force, voltage, current, infrared temperature, commutation speed, photoelectric speed, total power, and amplitude displacement; When the test value reaches the protection value, the safety protection module executes an alarm and locks the throttle.

4. The flight test method of a flying car according to claim 1, characterized in that, In step 1, the heat dissipation system includes: a water tank, an oil tank, a heat dissipation fan, and a temperature sensor, which are used to meet the temperature control requirements for heat dissipation of the flight unit and the flight unit driver. The power distribution device includes: a current control module, a voltage control module, and a bidirectional transmission module, which are used to meet the power consumption requirements of the flight unit driver. The adjustment range of the voltage control module is 10V - 1100V. The flight unit includes: a thrust module and a drive motor; the thrust module includes: a rotor and a ducted fan.

5. The flight test method of the flying car according to claim 1, characterized in that, In step 2, the legs under the bracket are provided with buffer rubber pads, and the bracket is provided with an interface for mating installation with the mooring lifting tooling. An elastic cable is used to connect the lifting module and the mooring lifting tooling. The lifting module includes: a crane.

6. The flight test method of a flying car according to claim 1, characterized in that The flying car includes: a chassis module, a body module, a power module, a flight module, an electromechanical module, and an information module. The monitoring module is connected to the information module through a data acquisition card, and the ground control module is connected to the flight module. The flight module includes: a flight controller module and a flight unit. Among them, the flight controller module and the flight unit in the flight module are obtained by disassembling the flight controller module, the wireless data transmission, and the flight unit from the ground test bench of the flight unit module after the end of step 2 and passing the test link of the mooring test unit of the flight unit module, and then loading them onto the flying car.

7. The flight test method of a flying car according to claim 1, characterized in that In step 4, the flying car communicates and controls with the ground control module through a wireless signal.

8. A flight test device for a flying car, characterized in that, The flying car flight test device includes: a ground test bench for the flight unit module, a power distribution device, a heat dissipation system, a data acquisition card, a ground control module, a monitoring module, a mooring lifting tooling, a ground mooring fixing module, and a lifting module. The ground test bench for the flight unit module includes: a bracket in the form of a cuboid, a flight unit driver, a flight unit, a flight controller module, a power battery, and a power distribution module. There are four flight units, which are arranged at the four corners of the top of the bracket according to the overall aerodynamic layout. The power battery and the power distribution module are placed in the middle of the bracket; four flight unit drivers are matched with the flight units one by one and placed above the bracket; the flight controller module is placed at the center of gravity of the bracket. The heat dissipation system is connected to the flight unit driver and the flight unit through pipelines. The power distribution device is connected to the power distribution module through a cable, the power battery is connected to the power distribution module through a cable, and the power distribution module is connected to the flight unit driver through a cable; the monitoring module is connected to the flight controller module through a data acquisition card, and the ground control module is connected to the flight controller module through a communication cable.

9. The flight test device for a flying car according to claim 8, wherein, The flight controller module includes: a flight controller, a wireless data transmission, and an information box. The monitoring module includes: a flight unit performance display module and a power battery performance display module. The ground control module includes: a remote controller, a ground station, and a safety protection module. The safety protection module is used to preset the protection values for the parameter values of tension, voltage, current, infrared temperature, commutation speed, photoelectric speed, total power, and amplitude displacement. When the test value reaches the protection value, the safety protection module executes an alarm and locks the throttle; The heat dissipation system includes: a water tank, an oil tank, a heat dissipation fan, and a temperature sensor, which are used to meet the temperature control requirements for heat dissipation of the flight unit and the flight unit driver; The power distribution device includes: a current control module, a voltage control module, and a bidirectional transmission module, which are used to meet the power consumption requirements of the flight unit driver; The adjustment range of the voltage control module is 10V - 1100V; The flight unit includes: a thrust module and a drive motor; the thrust module includes: a rotor and a ducted fan.

10. The flight test device for a flying car according to claim 8, wherein, In step 2, the legs under the bracket are provided with buffer rubber pads, and the bracket is provided with an interface for mating installation with the mooring lifting tooling; An elastic cable is used to connect the lifting module and the mooring lifting tooling; The lifting module includes: a crane; The flying car includes: a chassis module, a body module, a power module, a flight module, an electromechanical module, and an information module; The monitoring module is connected to the information module through a data acquisition card, and the ground control module is connected to the flight module; The flight module includes: a flight controller module and a flight unit; Among them, the flight controller module and the flight unit in the flight module are obtained by disassembling and installing the flight controller module, wireless data transmission, and flight unit from the ground test bench of the flight unit module after the mooring test link of the flight unit module, and then loading them onto the flying car; The flying car communicates and controls with the ground control module through wireless signals.

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