Automatic switching device and method for fuel oil full-model test and fuel oil semi-physical simulation test

Abstract

The invention belongs to the field of aircraft fuel tests, and particularly relates to an automatic switching device and method for a fuel full-model test and a fuel semi-physical simulation test. Under the condition that only one set of airborne test piece is provided, a set of automatic switching device is designed through the relay set, convenient and fast switching between the aircraft fuel oil full-mode test bed and the fuel oil semi-physical simulation test bed is achieved, the test efficiency is greatly improved, and equipment and human resources are saved.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of aircraft fuel test, and particularly relates to an automatic switching device and method for fuel full-scale test and fuel semi-physical simulation test. BACKGROUND

[0002] The aircraft fuel full-scale test and the fuel semi-physical simulation test are two important tests of the ground test of the aircraft fuel system, and play an important role in the design optimization of the fuel system before the first flight and the fault reproduction of the fuel system after the first flight.

[0003] In the case of only one set of airborne test piece, the aircraft fuel full-scale test bench and the fuel semi-physical simulation test bench need to be switched conveniently and quickly.

[0004] Therefore, it is desirable to have a technical solution to automatically switch the aircraft fuel full-scale test and the fuel semi-physical simulation test. SUMMARY

[0005] In order to solve the above problems, the application provides an automatic switching device for fuel full-scale test and fuel semi-physical simulation test, which is used to automatically switch the aircraft fuel full-scale test bench (4) and the fuel semi-physical simulation test bench (5) on the basis of sharing one set of airborne test piece (1), and the device comprises:

[0006] A relay group (2) configured to receive an electrical signal from the airborne test piece (1) and having a first state and a second state;

[0007] An automatic switching device (3) internally installed with the relay group (2) and configured with an electrical connector for connecting the airborne test piece (1), the aircraft fuel full-scale test bench (4) and the fuel semi-physical simulation test bench (5);

[0008] A controller (6) in communication connection with the automatic switching device (3) and used to issue a switching instruction to the relay group (2);

[0009] When the switching instruction is a first value, the relay group (2) is in the first state and connects the airborne test piece (1) and the aircraft fuel full-scale test bench (4); when the switching instruction is a second value, the relay group (2) is in the second state and connects the airborne test piece (1) and the fuel semi-physical simulation test bench (5).

[0010] Preferably, the airborne test specimen (1) is connected to the input electrical connector of the automatic switching device (3) via an electrical cable; the aircraft fuel full-model test bench (4) and the fuel semi-physical simulation test bench (5) are respectively connected to different output electrical connectors of the automatic switching device (3) via electrical cables.

[0011] Preferably, the first state of the relay group (2) is the relay not engaged state, and the second state is the relay engaged state.

[0012] Preferably, the airborne test specimen (1) is used for power distribution, control command issuance, status signal acquisition and bus communication of the pumps, valves, sensors and signal devices of the aircraft fuel system.

[0013] Preferably, the aircraft fuel full-model test bench (4) is equipped with real aircraft fuel system airborne test components, including pumps, valves, sensors and signalers.

[0014] Preferably, the fuel semi-physical simulation test bench (5) is equipped with simulation models of the pumps, valves, sensors and signal devices of the aircraft fuel system.

[0015] Preferably, the switching instruction issued by the controller (6) is a Boolean value, wherein the false value corresponds to the first value and the true value corresponds to the second value.

[0016] Preferably, it includes:

[0017] The airborne test specimen (1);

[0018] The aircraft fuel full-model test bench (4);

[0019] The fuel semi-physical simulation test bench (5);

[0020] And an automatic switching device for full-scale fuel testing and semi-physical fuel simulation testing.

[0021] An automatic switching method for fuel full-scale test and fuel semi-physical simulation test, based on a shared set of airborne test specimens (1), the method includes:

[0022] Receive test mode switching command from controller (6);

[0023] According to the value of the switching command, control the relay group (2) to switch to the corresponding state;

[0024] When the switching command is the first value, the relay group (2) is controlled to be in the first state so as to connect the airborne test specimen (1) to the aircraft fuel full-mold test bench (4) for full-mold testing;

[0025] When the switching command is the second value, the relay group (2) is controlled to be in the second state to connect the airborne test specimen (1) to the fuel semi-physical simulation test bench (5) for semi-physical simulation test.

[0026] Preferably, the phrase "controlling the relay group (2) to switch to the corresponding state according to the value of the switching instruction" specifically means:

[0027] If the switching command is "false", then the relay in the control relay group (2) is disconnected, so that it is in the first state;

[0028] If the switching command is "true", then the relays in the control relay group (2) will be activated, putting them in the second state.

[0029] Preferably, before the step of receiving the switching instruction, the method further includes:

[0030] The airborne test specimen (1) sends control commands to the connected test bench, provides power, and performs status signal acquisition and bus communication.

[0031] An electronic device includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the automatic switching method between full-scale fuel test and semi-physical fuel simulation test.

[0032] A computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements a method for automatically switching between full-scale fuel testing and semi-physical fuel simulation testing.

[0033] With only one set of airborne test specimens available, an automatic switching device was designed using relay groups to enable convenient and quick switching between the full-scale aircraft fuel test bench and the semi-physical fuel simulation test bench, greatly improving test efficiency and saving equipment and human resources. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the automatic switching device for full-scale aircraft fuel testing and semi-physical fuel simulation testing in this application. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only a part of the embodiments of this application, not all of them. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without creative effort are within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the accompanying drawings. An automatic switching device for full-scale aircraft fuel testing and semi-physical fuel simulation testing includes: an airborne test specimen 1, a relay group 2, an automatic switching device 3, an aircraft fuel full-scale test bench 4, a semi-physical fuel simulation test bench 5, and a controller 6;

[0036] Airborne test specimen 1 is used for power distribution, control command issuance, status signal acquisition, and bus communication of accessories such as pumps, valves, sensors, and signal devices in the aircraft fuel system.

[0037] Relay group 2 connects the control commands, status signals, bus data, and power distribution of the airborne test specimen 1 to the aircraft fuel full-model test bench 4 when the relay is not engaged, driving the test specimens such as fuel system pumps, valves, sensors, and signal devices installed on the aircraft fuel full-model test bench 4 to work and collect their status; when the relay is engaged, it connects the control commands, status signals, bus data, and power distribution of the airborne test specimen 1 to the aircraft fuel semi-physical simulation test bench 5, driving the simulation models of fuel system pumps, valves, sensors, and signal devices loaded on the aircraft fuel semi-physical simulation test bench 5 to work and collect their status.

[0038] Automatic switching device 3 is used for the installation of relay group 2 and to configure the electrical connectors for the input and output signals of relay group 2.

[0039] Aircraft fuel full-model test bench 4 is used for aircraft fuel full-model testing and is equipped with airborne test components such as airborne pumps, valves, sensors, and signalers of the aircraft fuel system.

[0040] The fuel semi-physical simulation test bench 5 is used for aircraft fuel semi-physical simulation tests. It is equipped with simulation models of aircraft fuel semi-physical simulation test accessories such as simulated airborne pumps, valves, sensors, and signal devices.

[0041] The controller 6 is used to issue switching commands to control the relays in the relay group 2 of the automatic switching device 3 to be engaged or disengaged. When the switching command is false, the relays in the relay group 2 are disengaged, and the airborne test specimen 1 is connected to the aircraft fuel full-scale test bench 4. When the switching command is true, the relays in the relay group 2 are engaged, and the airborne test specimen 1 is connected to the fuel semi-physical simulation test bench 5.

[0042] This application also provides a method for automatically switching between full-scale aircraft fuel testing and semi-physical fuel simulation testing.

[0043] Automatic switching includes the following steps:

[0044] Step 1: The controller 6 issues a full-scale aircraft fuel test command. The switching command is false, and the relays in the relay group of the automatic switching device 3 are automatically disconnected. The airborne test specimen 1 is connected to the full-scale aircraft fuel test bench 4 through the relay group 2.

[0045] Step 2: The controller 6 issues a semi-physical simulation test command for aircraft fuel. When the switching command is true, the relays in relay group 2 of the automatic switching device 3 automatically engage, and the airborne test specimen 1 is connected to the semi-physical simulation test bench 5 through relay group 2.

[0046] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An automatic switching device for full-scale fuel testing and semi-physical fuel simulation testing, used to automatically switch between an aircraft full-scale fuel test bench (4) and a semi-physical fuel simulation test bench (5) on the basis of sharing a set of airborne test specimens (1), characterized in that, The device includes: The relay group (2) is configured to receive electrical signals from the airborne test specimen (1) and has a first state and a second state; The automatic switching device (3) is equipped with the relay group (2) and an electrical connector for connecting the airborne test specimen (1), the aircraft fuel full-model test bench (4) and the fuel semi-physical simulation test bench (5). The controller (6) is communicatively connected to the automatic switching device (3) and is used to send switching commands to the relay group (2); When the switching command is a first value, the relay group (2) is in a first state, connecting the airborne test specimen (1) with the aircraft fuel full-model test bench (4); when the switching command is a second value, the relay group (2) is in a second state, connecting the airborne test specimen (1) with the fuel semi-physical simulation test bench (5).

2. The automatic switching device for fuel full-scale test and fuel semi-physical simulation test according to claim 1, characterized in that, The airborne test specimen (1) is connected to the input electrical connector of the automatic switching device (3) via electrical cables; the aircraft fuel full-model test bench (4) and the fuel semi-physical simulation test bench (5) are respectively connected to different output electrical connectors of the automatic switching device (3) via electrical cables.

3. The automatic switching device for fuel full-scale test and fuel semi-physical simulation test according to claim 1 or 2, characterized in that, The first state of the relay group (2) is the relay not engaged, and the second state is the relay engaged.

4. The automatic switching device for fuel full-scale test and fuel semi-physical simulation test according to claim 1, characterized in that, The airborne test specimen (1) is used for power distribution, control command issuance, status signal acquisition and bus communication of the pumps, valves, sensors and signal devices of the aircraft fuel system.

5. The automatic switching device for fuel full-scale test and fuel semi-physical simulation test according to claim 1, characterized in that, The aircraft fuel full-model test bench (4) is equipped with real aircraft fuel system airborne test components, including pumps, valves, sensors and signalers.

6. The automatic switching device for fuel full-scale test and fuel semi-physical simulation test according to claim 1, characterized in that, The fuel semi-physical simulation test bench (5) is equipped with simulation models of the pumps, valves, sensors and signal devices of the aircraft fuel system.

7. The automatic switching device for fuel full-scale test and fuel semi-physical simulation test according to claim 1, characterized in that, The switching command issued by the controller (6) is a Boolean value, where the false value corresponds to the first value and the true value corresponds to the second value.

8. A test bench system using the automatic switching device as described in any one of claims 1 to 7, characterized in that, include: The airborne test specimen (1); The aircraft fuel full-model test bench (4); The fuel semi-physical simulation test bench (5); And an automatic switching device for fuel full-scale test and fuel semi-physical simulation test as described in any one of claims 1 to 7.

9. A method for automatically switching between full-scale fuel testing and semi-physical fuel simulation testing, based on a shared set of airborne test specimens (1), characterized in that, The method includes: Receive test mode switching command from controller (6); According to the value of the switching command, control the relay group (2) to switch to the corresponding state; When the switching command is the first value, the relay group (2) is controlled to be in the first state so as to connect the airborne test specimen (1) to the aircraft fuel full-mold test bench (4) for full-mold testing; When the switching command is the second value, the relay group (2) is controlled to be in the second state to connect the airborne test specimen (1) to the fuel semi-physical simulation test bench (5) for semi-physical simulation test.

10. The automatic switching method between full-scale fuel testing and semi-physical fuel simulation testing according to claim 9, characterized in that, The phrase "controlling the relay group (2) to switch to the corresponding state according to the value of the switching instruction" specifically means: If the switching command is "false", then the relay in the control relay group (2) is disconnected, so that it is in the first state; If the switching command is "true", then the relays in the control relay group (2) will be activated, putting them in the second state.

11. The automatic switching method between full-scale fuel testing and semi-physical fuel simulation testing according to claim 9, characterized in that, Prior to the step of receiving the switching instruction, the method further includes: The airborne test specimen (1) sends control commands to the connected test bench, provides power, and performs status signal acquisition and bus communication.

12. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the automatic switching method between full-scale fuel test and semi-physical fuel simulation test as described in any one of claims 9 to 11.

13. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by the processor, the program implements the automatic switching method between full-scale fuel test and semi-physical fuel simulation test as described in any one of claims 9 to 11.

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