Comprehensive avionic iron bird rack suitable for eVTOL

Abstract

The invention relates to a comprehensive avionic iron and bird rack suitable for eVTOL, and belongs to the technical field of aviation equipment, and the comprehensive avionic iron and bird rack suitable for eVTOL comprises a test board for constructing an eVTOL aircraft and aero-engine test, and the test board comprises a flight control system, an avionic system, a modular design system, a comprehensive simulation system and a real-time data acquisition system. The flight control system comprises a sensor module, a power system module, a control system module, a flight simulation module and a control surface loading module, the flight control system adopts a distributed propulsion technology, and a plurality of motors are distributed at different positions of the aircraft; according to the invention, in the use process, flight control, avionics and energy management tests can be realized at the same time through the test bench, and a modular design, comprehensive simulation and a real-time data acquisition system are mainly adopted to jointly support linkage test and integrated verification of each system.

Description

Technical Field

[0001] The present invention belongs to the technical field of aviation equipment, and particularly relates to a comprehensive avionics iron bird test bench applicable to eVTOL. Background Art

[0002] In aviation technology, an "iron bird test bench" refers to a test device used to test aircraft and aero engines on the ground. This test bench simulates various operating conditions during flight to comprehensively test the structure, engine, systems, and subsystems of the aircraft on the ground, thereby ensuring the performance, safety, and reliability of the aircraft before it is put into actual flight.

[0003] Generally speaking, the integration of avionics and flight control in eVTOL is a complex system of multiple systems working together. It is necessary to achieve efficient control and stable navigation, ensure system redundancy and safety, and at the same time consider that electricity is the energy source, and the energy density and charging rate of batteries are limited under current technical conditions. Reasonable energy management is particularly crucial for optimizing the use of electrical energy, extending the endurance time, and ensuring flight safety. Based on the highly integrated characteristics of avionics flight control and energy management of eVTOL aircraft, in order to verify the design of eVTOL avionics and flight control systems and optimize control algorithms and hardware configurations during the development process, it is crucial to establish an efficient test bench. Summary of the Invention

[0004] The purpose of the present invention is to provide a comprehensive avionics iron bird test bench applicable to eVTOL with a simple structure and reasonable design to solve the above problems.

[0005] The present invention achieves the above purpose through the following technical solutions:

[0006] A comprehensive avionics iron bird test bench applicable to eVTOL, comprising: a test bench required for constructing eVTOL aircraft and aero engine tests, the test bench including a flight control system, an avionics system, a modular design system, a comprehensive simulation system, and a real-time data acquisition system;

[0007] The flight control system includes a sensor module, a power system module, a control system module, a flight simulation module, and a control surface loading module. The flight control system adopts distributed propulsion technology, and multiple motors are distributed at different positions of the aircraft;

[0008] The sensor module is used to build a sensor simulator and an actual sensor array, including IMU, GPS, and air data computer, etc.;

[0009] The power system module is equipped with an adjustable power motor drive system to simulate the distributed propulsion structure of eVTOL. In cooperation with the battery management module, it can monitor and adjust the power output;

[0010] The control system module uses a real eVTOL flight control computer and receives flight control commands transmitted by the pilot and the flight management system.

[0011] The flight simulation module uses a high-performance embedded simulation computer to real-time simulate the flight conditions of eVTOL on the ground and in the air, and through the radiation memory, unifies and controls various bus IO communication components in the same real-time network to achieve the acquisition and dynamic excitation of airborne equipment data.

[0012] The control surface loading module uses a servo motor to control the actuator to load a reverse moment on the control surface, simulating the hinge moment of the real aerodynamic load acting on the control surface.

[0013] The avionics system includes multiple subsystems such as navigation, communication, and sensors.

[0014] The modular design system includes a flight control module, an avionics module, and an energy management module.

[0015] The integrated simulation system includes flight environment simulation, multi-sensor data mixing, and energy management strategy verification.

[0016] The real-time data acquisition system includes flight control data acquisition, avionics data acquisition, and battery and energy management data acquisition.

[0017] The test environment also includes fault simulation and redundancy design verification, supporting multi-system collaborative response and automated test processes for multi-system linkage testing.

[0018] As a further optimized solution of the present invention, the flight control module is configured with a distributed propulsion system and high-precision sensors through a test bench, enabling the flight control system to conduct tests such as attitude control and power distribution, and accurately simulating flight conditions.

[0019] As a further optimized solution of the present invention, the avionics module is used to simulate information such as IMU and GPS, and cooperate with the flight control algorithm for real-time data interaction.

[0020] As a further optimized solution of the present invention, the energy management module can accurately monitor power consumption and battery status, and verify the impact of different energy usage strategies on flight control and avionics through a distributed motor control module.

[0021] As a further optimized solution of the present invention, the flight environment simulation provides a 3D scene and a physics engine that enable the flight control system to conduct various mission tests in a simulated flight environment, such as navigation, gusts, and turbulence.

[0022] As a further optimization solution of the present invention, the multi-sensor data mixing enables the multi-sensor simulation platform in the test bench to provide simulated sensor data, and transmit the avionics information such as navigation, communication, and sensors to the flight control system in real time, verifying the real-time performance and accuracy of data fusion.

[0023] As a further optimization solution of the present invention, the energy management strategy verification simulation environment can simulate the energy consumption in different flight phases, test the energy scheduling ability of the battery management module, and evaluate its impact on the flight control and avionics systems.

[0024] As a further optimization solution of the present invention, the real-time data acquisition system of the flight control data acquisition test bench can record flight control data such as flight attitude, position, and motor output power, providing data support for attitude and motion control verification.

[0025] As a further optimization solution of the present invention, the avionics data acquisition is used to collect and monitor avionics data such as sensors, navigation, and communication in real time, enabling the test bench to provide real-time feedback on various environmental and equipment information for the flight control system to make corresponding adjustments.

[0026] As a further optimization solution of the present invention, the battery and energy management data acquisition will record information such as battery power, temperature, and discharge rate, transmit the power status data to the flight control and avionics modules in real time, and provide an alarm signal for the avionics system when the power is insufficient, or adjust the power distribution strategy according to the avionics sensor information.

[0027] The beneficial effects of the present invention are as follows: During the use of the present invention, the test bench set up can simultaneously realize the tests of flight control, avionics, and energy management. The modular design, comprehensive simulation, and real-time data acquisition system mainly support the joint test and integrated verification of each system. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic structural diagram of the test bench of the present invention;

[0029] Figure 2 is a schematic structural diagram of the working principle of the test bench of the present invention;

[0030] Figure 3 is an architecture diagram of the integrated avionics iron bird test bench of the present invention;

[0031] Figure 4 is a flow chart of the integrated avionics iron bird test experiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0032] The present application will be further described in detail below with reference to the accompanying drawings. It is necessary to point out here that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the protection scope of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0033] As Figures 1 - 4 shown, an integrated avionics iron bird test bench applicable to eVTOL includes a test bench required for building eVTOL aircraft and aeroengine tests. The test bench includes a flight control system, an avionics system, a modular design system, an integrated simulation system, and a real-time data acquisition system.

[0034] The flight control system includes a sensor module, a power system module, a control system module, a flight simulation module, and a control surface loading module. The flight control system adopts distributed propulsion technology, and multiple motors are distributed at different positions of the aircraft. In order to accurately control the attitude and balance of the aircraft, the flight control system needs to control the output power of each motor in real time. The avionics system will monitor the status of each motor in real time and cooperate closely with the flight control system to achieve stable flight. The power system module is powered by a battery.

[0035] The sensor module is used to build a sensor simulator and an actual sensor array, including an IMU, a GPS, an air data computer, etc.

[0036] The power system module is equipped with an adjustable power motor drive system to simulate the distributed propulsion structure of eVTOL. Cooperating with the battery management module, it can monitor and adjust the power output.

[0037] The control system module uses a real eVTOL flight control computer to receive flight control commands transmitted by the pilot and the flight management system.

[0038] The flight simulation module uses a high-performance embedded simulation computer to real-time simulate the flight conditions of eVTOL on the ground and in the air, and through the radiation memory, uniformly controls various bus IO communication components in the same real-time network to achieve the acquisition and dynamic excitation of the data of on-board equipment.

[0039] The control surface loading module uses a servo motor to control the actuator to load a reverse moment on the control surface, simulating the hinge moment of the real aerodynamic load acting on the control surface.

[0040] The control system module adopts a real eVTOL flight control computer, receives flight control commands transmitted by the pilot and the flight management system, and sends control instructions to the power system module. After receiving the instructions, the electric motor drive system in the power system module operates. At this time, the flap loading module uses a servo motor to control the actuator to apply a reverse moment to the flap, simulating the hinge moment of the real aerodynamic load applied to the flap. Meanwhile, the flight simulation module uses a high-performance embedded simulation computer to simulate the flight conditions of the eVTOL on the ground and in the air in real time, and through the radiation memory, it unifies the control of various bus IO communication components in the same real-time network to achieve the acquisition and dynamic excitation of the data of the airborne equipment. At this time, the sensor module is used to build a sensor simulator and an actual sensor array;

[0041] The avionics system includes multiple subsystems such as navigation, communication, and sensors, while the flight control system is responsible for controlling the real-time attitude, speed, and position of the aircraft. In eVTOL, the avionics and flight control are highly integrated, which helps to simplify the system design and improve the system's response speed. For example, the sensor data can be used by both navigation and flight control simultaneously to achieve faster attitude adjustment and more accurate positioning;

[0042] The avionics and flight control systems often use multi-sensor fusion technology, such as inertial measurement units (IMUs), GPS, and other sensors, to provide comprehensive information on the flight state. Sensor fusion can improve the positioning accuracy of the aircraft and maintain the robustness of the system in case of a single sensor failure, enhancing safety. Both the avionics and flight control systems need to have high redundancy and real-time data links. In eVTOL, any flight control failure may pose serious safety hazards. Therefore, introducing redundancy and real-time data communication in the design of the avionics and flight control systems can ensure the high availability of the system;

[0043] The modular design system includes a flight control module, an avionics module, and an energy management module;

[0044] The flight control module is configured with a distributed propulsion system and high-precision sensors through a test bench, enabling the flight control system to conduct tests such as attitude control and power distribution, and accurately simulate flight conditions;

[0045] The avionics module is used to simulate information such as IMU and GPS, and cooperate with flight control algorithms for real-time data interaction. Devices such as sensors, communication, and navigation can work seamlessly in the test bench to ensure the normal operation of the avionics system;

[0046] The energy management module, the battery management and energy scheduling system are closely integrated with the motor control, which can accurately monitor the power consumption and battery status, and verify the impact of different energy usage strategies on the flight control and avionics through the distributed motor control module;

[0047] This modular design system not only supports the separate testing of flight control, avionics, and energy management, but also provides a complete system testing environment, enabling the three systems to cooperate and verify each other in the same test scenario;

[0048] The integrated simulation system includes flight environment simulation, multi-sensor data mixing, and energy management strategy verification;

[0049] Flight environment simulation is used to provide a 3D scene and a physical engine that enable the flight control system to conduct various task tests in a simulated flight environment, such as navigation, gusts, and turbulence. These processes rely on the sensor information, position data provided by the avionics system, and the aerodynamic moments provided by the control surface loading system;

[0050] Multi-sensor data mixing enables the multi-sensor simulation platform in the test bench to provide simulated sensor data, transmit avionics information such as navigation, communication, and sensors to the flight control system in real time, and verify the real-time performance and accuracy of data fusion;

[0051] The energy management strategy verification simulation environment can simulate the energy consumption in different flight phases, test the energy scheduling ability of the battery management module, and evaluate its impact on the flight control and avionics systems. For example, test the stability of the flight control algorithm in low battery mode during high-load flight tasks, or verify the response strategy of the avionics system under high battery temperature conditions;

[0052] This integrated simulation system not only supports the testing of a single system, but also provides a comprehensive and dynamic simulation environment for the collaborative work of flight control, avionics, and energy management;

[0053] The real-time data acquisition system includes flight control data acquisition, avionics data acquisition, and battery and energy management data acquisition;

[0054] The real-time data acquisition system of the flight control data acquisition test bench can record flight control data such as flight attitude, position, and motor output power, providing data support for attitude and motion control verification;

[0055] Avionics data acquisition is used to collect and monitor avionics data such as sensors, navigation, and communication in real time, enabling the test bench to provide real-time feedback on various environmental and equipment information for the flight control system to make corresponding adjustments;

[0056] Battery and energy management data acquisition records information such as battery power, temperature, and discharge rate, transmits power status data to the flight control and avionics modules in real time, provides an alarm signal for the avionics system when the battery is low, or adjusts the power distribution strategy according to avionics sensor information;

[0057] The real-time data acquisition system can achieve data interaction between multiple systems, enabling accurate recording and feedback of the performance of the flight control, avionics, and energy management systems under different flight conditions, which helps to discover potential problems in the joint test;

[0058] The test environment also includes fault simulation and redundancy design verification, multi-system collaborative response, and automated test processes to support multi-system joint testing;

[0059] The multi-system collaborative response in fault simulation and redundancy design verification is manifested as the test bench supporting the simulation of various fault situations during flight, such as sensor failures, motor failures, low battery power, or power fluctuations. These scenarios require the joint response of the flight control, avionics, and energy management systems. For example, the flight control system may rely on the backup sensor data of the avionics system for attitude control adjustment, while the energy management system will trigger power generation alarms or perform emergency power switching; the redundancy design is verified in the fault simulation to ensure that in the event of sensor or battery failures, the flight control system can stably receive the backup sensor data of the avionics system and rely on the dynamic adjustment of the energy management system to maintain flight stability. Through the above fault simulation and redundancy testing, the test bench can evaluate the linkage and stability of the flight control, avionics, and energy management systems, thus ensuring the collaborative response ability of each system when encountering similar faults during real flight;

[0060] The support of the automated test process for multi-system joint testing is manifested as the automated test script standardizing the test scenarios of the flight control, avionics, and energy management systems, enabling the reaction and cooperation of each system to be tested consistently and comprehensively under different conditions. Regression testing ensures that after system function or parameter optimization, each module still works collaboratively without compatibility issues caused by system updates. Through the modular hardware architecture, integrated simulation platform, real-time data acquisition, and fault simulation, the test bench realizes the seamless integration and joint testing of the flight control, avionics, and energy management systems. The collaborative verification between systems not only supports the independent function testing of each system but also can test the mutual influence and cooperation effect of each system under different flight environments and emergency conditions, thus ensuring the overall stability and safety of the eVTOL system.

[0061] The above-described embodiments merely represent several implementation manners of the present invention. Their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. An integrated avionics test bench suitable for eVTOL, characterized in that: include: Construct the test bench required for eVTOL aircraft and aircraft engine testing, which includes flight control system, avionics system, modular design system, integrated simulation system and real-time data acquisition system; The flight control system includes a sensor module, a power system module, a control system module, a flight simulation module and a control surface loading module. The flight control system adopts distributed propulsion technology, and multiple motors are distributed at different positions of the aircraft; The sensor module is used to build sensor simulators and actual sensor arrays, including IMU, GPS, and air data machines; The power system module is equipped with an adjustable power electric motor drive system to simulate the distributed propulsion structure of eVTOL, and cooperates with the battery management module to monitor and adjust the power output; The control system module uses a real eVTOL flight control computer to receive flight control commands transmitted by the pilot and the flight management system; The flight simulation module uses a high-performance embedded simulation computer to simulate the flight conditions of the eVTOL on the ground and in the air in real time, and uses radial memory to unify the control of various bus IO communication components in the same real-time network to achieve data collection and dynamic stimulation of airborne equipment; The rudder surface loading module uses a servo motor to control the driving actuator to load a reverse torque on the rudder surface, simulating the hinge torque of the real aerodynamic load loaded on the rudder surface; The avionics system includes multiple subsystems such as navigation, communication, and sensors; The modular design system includes a flight control module, an avionics module and an energy management module; The comprehensive simulation system includes flight environment simulation, multi-sensor data mixing and energy management strategy verification; The real-time data acquisition system includes flight control data acquisition, avionics data acquisition, and battery and energy management data acquisition; The test environment also includes fault simulation and redundant design to verify multi-system coordinated response and automated test processes to support multi-system linkage testing.

2. The integrated avionics iron bird test bench suitable for eVTOL according to claim 1, characterized in that: The flight control module is equipped with a distributed propulsion system and high-precision sensors through a test bench, enabling the flight control system to perform tests such as attitude control and power distribution, accurately simulating flight conditions.

3. The integrated avionics iron bird test bench suitable for eVTOL according to claim 1, characterized in that: The avionics module is used to simulate IMU, GPS and other information, and cooperate with the flight control algorithm to perform real-time data interaction.

4. The integrated avionics iron bird test bench suitable for eVTOL according to claim 1, characterized in that: The energy management module can accurately monitor power consumption and battery status, and verify the impact of different energy usage strategies on flight control and avionics through the distributed motor control module.

5. The integrated avionics iron bird test bench suitable for eVTOL according to claim 1, characterized in that: The flight environment simulation is used to provide a 3D scene and a physical engine that enables the flight control system to perform various mission tests in a simulated flight environment, such as navigation, gusts, turbulence, etc.

6. The integrated avionics iron bird test bench suitable for eVTOL according to claim 1, characterized in that: The multi-sensor data mixing test bench can provide simulated sensor data with a multi-sensor simulation platform, and transmit navigation, communication, sensor and other avionics information to the flight control system in real time to verify the real-time and accuracy of data fusion.

7. The integrated avionics iron bird test stand suitable for eVTOL according to claim 1, characterized in that: The energy management strategy verification simulation environment can simulate the energy consumption in different flight phases, test the energy scheduling capability of the battery management module, and evaluate its impact on the flight control and avionics systems.

8. The integrated avionics iron bird test stand suitable for eVTOL according to claim 1, characterized in that: The real-time data acquisition system of the flight control data acquisition test bench can record flight control data such as flight attitude, position, motor output power, etc., providing data support for attitude and motion control verification.

9. The integrated avionics iron bird test stand suitable for eVTOL according to claim 1, characterized in that: The avionics data acquisition is used to collect and monitor in real time the avionics data of sensors, navigation, communications, etc., so that the test bench can provide real-time feedback of various environmental and equipment information for the flight control system to make corresponding adjustments.

10. The integrated avionics test bench suitable for eVTOL according to claim 1, characterized in that: The battery and energy management data collection will record information such as battery power, temperature, discharge rate, etc., transmit power status data to the flight control and avionics modules in real time, and provide an alarm signal to the avionics system when the power is low, or adjust the power distribution strategy according to the avionics sensor information.

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