JP2000310582A - Engine operation-testing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an engine operation-testing device for testing the operation of an engine in a state suited for the actually used condition. SOLUTION: An engine operation-testing device 1 is provided with a first operation-testing part A for testing the operation of an engine 2 based on a signal from the engine 2, a second operation-testing part B for testing the operation of the engine 2 and an interface unit part 4 based on a signal from the engine 2 and a signal from the interface unit part 4 that is mounted to a machine body where the engine 2 is mounted, a switch 9 where selection operation is inputted, and a relay box 3 for selecting and transmitting the signal from the engine 2 to the first and second operation-testing parts A and B according to the operation of the switch 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an engine operation test apparatus for checking the performance and function of an engine such as a jet engine.

[0002]

2. Description of the Related Art Conventionally, when an operation test of a jet engine or the like is performed, only the engine is operated to check the performance and function of the engine.

[0003]

The driving test apparatus used at this time could only perform the driving test of the engine alone. That is, various equipments such as NIU (Nacelle Interface Unit) provided between the engine and the equipment are attached to the actual equipment, but in the conventional driving test apparatus, the equipments The operation test in consideration of was not able to be performed. Therefore, for example, when an operation test such as NIU is to be performed, it can only be performed after the device is mounted on an actual machine, and a test according to an actual situation cannot be performed in advance.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide an engine operation test apparatus which can perform an operation test of an engine in a state suitable for actual use. I do.

[0005]

According to a first aspect of the present invention, there is provided a first operation test section for performing an operation test of an engine based on a signal from the engine; A second operation test unit that performs an operation test of the engine and the aircraft components based on the signals of the aircraft and the components of the aircraft on which the engine is to be mounted, and a selection operation unit to which a selection operation is input. Selecting means for selecting and transmitting a signal from the engine to the first and second driving test sections in accordance with the selection operation input to the selection operation means.

According to the present invention, when it is desired to perform an operation test of only an engine, a signal from the engine to be tested is transmitted to the first operation test unit by the selection means, while a system considering the equipment of the body is considered. When it is desired to perform an entire operation test, a signal from the engine is transmitted to the second operation test unit by the selection means, so that the operation test in a plurality of modes can be selectively performed. Then, by selecting the second operation test section by the selection means, the operation test of the engine is performed in a state close to a situation in which the engine is actually used. In addition, by providing the selection means, the operation test of only the engine and the operation test of the entire system including the engine and the body equipment can be easily selected.

According to a second aspect of the present invention, there is provided the engine operation test apparatus according to the first aspect, wherein the second operation test section is capable of inputting a signal from the engine and connecting with the aircraft equipment. A communication unit capable of inputting and outputting signals is provided.

According to the present invention, a signal from the engine is input to the body equipment, and a processing signal based on this signal is output from the body equipment. As described above, since signals can be freely exchanged between the body equipment and the engine, the operation test of the engine and the body equipment can be accurately and reliably performed in a state close to the actual use condition.

The invention according to claim 3 is the engine operation test apparatus according to claim 1 or 2, wherein the second operation test section simulates a signal to be output from a body on which the engine is mounted. It is characterized by having a simulator unit for generating the target automatically.

[0010] According to the present invention, since the simulator provided with the simulator for simulating the signal to be output from the actual aircraft is provided, the driving test is more suitable for the actual aircraft, and the engine and the system as a whole are more accurate. Operation test.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an engine operation test apparatus according to an embodiment of the present invention will be described with reference to the drawings. FIG.
1 is a configuration diagram showing one embodiment of an engine operation test device 1 of the present invention. In FIG. 1, an engine operation test device 1
A relay box 3 serving as selection means for receiving an output signal from the engine 2 to be tested and selectively outputting the signal to the downstream side; a communication unit 5 for receiving a signal from the relay box 3; An interface unit 4 which is a body equipment connected to the unit 5, a simulator unit 6 provided between the relay box 3 and the communication unit 5, a normal circuit unit 7, the communication unit 5 and the normal circuit unit 7. Of the relay box 3 and a switch 9 as a selection operation means for selecting and operating the relay box 3.

The engine 2 outputs a signal when operated. The output signal at this time is
Each parameter of the engine 2 such as pressure and temperature is output from a sensor provided in the engine 2.

The relay box 3 transmits signals from the engine 2 to a plurality of downstream output lines c1, c2,
Selection means for selectively outputting to any one of c3. The selection of the relay box 3 is performed by the switch 9.

The interface unit 4 as a machine accessory is composed of an NIU (Nacelle Interface Unit). This NIU is to be mounted on an actual airframe (for example, an airframe),
This is an interface for converting an output signal (pressure, temperature, etc.) from a sensor installed in the engine 2 into a form acceptable by the aircraft. That is, in the actual machine, the signal from the engine 2 is transmitted to the NIU after being transmitted to the NIU, and the aircraft is operated by receiving the signal from the NIU.

The interface unit 4 composed of the NIU is connected to the communication unit 5. This communication unit 5 is NI
The engine 2 and the NIU also transmit signals via the communication unit 5 in the actual machine. That is, by selecting the line c3 by the relay box 3, a signal from the engine 2 is input to and output from the interface unit 4 via the communication unit 5.

The simulator section 6 simulates a signal to be output from a portion other than the engine 2 in the actual body and transmits the signal to the interface unit section 4 via the communication section 5. is there. At this time, the signal generated by the simulator unit 6 is, for example, a propeller signal in an engine operation test for a propeller aircraft, a rotor signal in a helicopter engine operation test, and a screw signal in a marine engine operation test. Signal. That is, the simulator unit 6 simulates the state of each element other than the engine in the entire system of the actual aircraft, and transmits a simulated signal to the interface unit unit 4 via the communication unit 5. is there.

The normal circuit section 7 has an NIU function. When the relay box 3 selects the line c1, a signal from the engine 2 is sent to the output display section 8 via the normal circuit section 7. ing. On the other hand, the communication unit 5 is also connected to the output display unit 8, and the output display unit 8 outputs and displays the operation test result on the display panel based on the signal from the normal circuit unit 7 or the signal from the communication unit 5. It has become.

The output signal from the engine 2 is selectively operated by the relay box 3 to provide a first operation test section A having a normal circuit section 7, a communication section 5 connected to the interface unit section 4, and a simulator. And the second operation test section B provided with the section 6.

The relay box 3, the communication section 5, the simulator section 6, and the normal circuit section 7 are provided as one unit inside the housing or the like, and include the engine 2, the interface unit section 4, the output display section, and the like. 8 is used by being connected to the outside of the unit via a connection portion.

Next, the operation of the engine operation test device 1 will be described. A signal from the engine 2 to be tested is transmitted to a relay box 3 as selection means. The signal from the engine 2 transmitted to the relay box 3 is
The line c is operated by the operation of the switch 9 as the selection operation means.
It is selectively transmitted to any one of 1, c2, and c3.

When it is desired to confirm the performance and the function of only the engine 2, the relay box 3 sends the signal to the line c1.
To the first operation test section A. That is, the output signal from the engine 2 is transmitted from the line c1 to the normal circuit unit 7 by the relay box 3. Then, the signal of the engine 2 that has passed through the normal circuit section 7 is sent to the output display section 8, and the output display section 8 displays an operation test result when only the engine 2 is operated.

Next, when it is desired to test the entire system including the engine 2 and the interface unit 4, the relay box 3 transmits the output signal from the engine 2 to the communication unit 5 via the line c3. Selected. At this time, the communication unit 5 and the interface unit unit 4
The dynamic signal from the engine 2 is transmitted to the interface unit 4 via the communication unit 5, and the interface unit 4 A signal processed based on the signal from the second unit 2 is transmitted to the communication unit 5. That is, the signal of the engine 2 is transmitted to the second operation test section B by the selection operation of the relay box 3, so that the interface unit 4, which is the body equipment, the engine 2 and the interface unit 4
The operation test of the entire system in consideration of the above is performed in a state according to the actual use situation.

Further, by selecting the relay box 3 and transmitting the output signal from the engine 2 to the line c2 and the line c3, it is possible to perform an operation test of the entire system more suited to the actual use situation. . That is, by selecting the line c2, an output signal from the engine 2 is transmitted to the simulator unit 6. The simulator section 6 simulates a signal to be output from an element of the system other than the engine 2, and transmits the simulated signal to the interface unit section 4 via the communication section 5. That is, assuming that the engine 2 and the interface unit 4 are mounted on an actual body, the interface unit 4 connected to the engine operation test apparatus 1 transmits a dynamic signal from the engine 2 and a signal other than the engine 2. And a simulation signal to be output from each part of the actual aircraft.

Then, the engine 2 and the simulator section 6
The interface unit 4 receiving the signal from the
These signals are processed and an output signal based on these signals is sent back to the communication unit 5. The communication section 5 sends an output signal from the engine 2 and an output signal from the interface unit section 4 to the output display section 8, and the output display section 8 outputs and displays operation test results of the engine 2 and the interface unit section 4.

As described above, by providing the relay box 3 as the selection means, it is possible to selectively perform operation tests of a plurality of different types of systems. The selection operation of the relay box 3 is easily performed by switching the switch 9. That is, the operation test of the engine 2 only and the operation test of the entire system including the interface unit 4 are performed by selectively outputting the output from the engine 2 by the relay box 3 to the first operation test section A and the second operation test section.
This is realized by transmitting the data to the driving test unit B, and the selection operation can be easily performed. In addition, since the relay box 3 can perform more selection operations, an operation test can be selectively performed for more types of systems.

Further, since a dynamic signal from the engine 2 is input to the interface unit 4, the operation test of the interface unit 4 can be performed under the condition according to the state of being mounted on the actual machine. That is, the operation test cannot be performed with the interface unit 4 which is conventionally the NIU incorporated in the system, and the operation test of only the interface unit 4 is performed by a static signal from another test apparatus. It was done after being mounted on the actual aircraft. However, since the communication unit 5 capable of inputting / outputting a signal to / from the interface unit 4 and inputting a signal from the engine 2 is provided, the interface unit 4 can receive a signal based on a dynamic signal from the engine 2. Driving test is performed, and a driving test more suited to the situation when the actual machine is mounted is realized. Therefore, an operation test of the interface unit 4 can be performed before the interface unit 4 is mounted on an actual machine, so that, for example, a search for a failure of the interface unit 4 can be reliably performed in advance.
Furthermore, since the engine 2 and the interface unit 4 exchange signals via the communication unit 5, the interface unit 4 can diagnose the engine 2 for failure.

The provision of the simulator unit 7 capable of simulating a signal to be transmitted from the actual machine to the interface unit 4 allows the signal input to the interface unit 4 to be further mounted on the actual machine. And more accurate engine 2
In addition, an operation test of the interface unit 4 can be performed.

Further, since the engine 2 and the interface unit 4 are configured to be connected from the outside of the engine operation test apparatus 1, it is easy to prepare for the operation test and to remove the engine after the operation test. Done.

[0029]

The engine operation test apparatus of the present invention has the following effects. According to the first aspect of the present invention, when it is desired to perform an operation test of only the engine, a signal from the engine to be tested is transmitted to the first operation test unit by the selection means, while the equipment of the aircraft is considered. When it is desired to perform an operation test of the entire system, the signal from the engine is transmitted to the second operation test unit by the selection means, so that the operation test in a plurality of modes can be selectively performed. Then, by selecting the second operation test section by the selection means, the operation test of the engine is performed in a state close to a situation in which the engine is actually used. In addition, by providing the selection means, the operation test of only the engine and the operation test of the entire system including the engine and the body equipment can be easily selected.

According to the second aspect of the present invention, a signal from the engine is input to the body equipment, and a processing signal based on this signal is output from the body equipment.
As described above, since signals can be freely exchanged between the body equipment and the engine, the operation test of the engine and the body equipment can be accurately and reliably performed in a state close to the actual use condition.

According to the third aspect of the present invention, the provision of the simulator section for simulating the signal to be output from the actual body allows the driving test to be more suitable for the actual machine and to be more accurate. It is possible to perform an operation test of a simple engine and the whole system.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing one embodiment of an engine operation test device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Engine operation test device 2 Engine 3 Relay box (selection means) 4 Interface unit part (body equipment) 5 Communication part 6 Simulator part 7 Normal circuit part 8 Output display part 9 Switch (selection operation means) A 1st operation test part B Second operation test section

Claims (3)

[Claims] A first operation test section for performing an operation test of the engine on the basis of a signal from the engine; and a signal from the equipment of the body on which the engine is to be mounted and a signal from the engine and A second operation test unit that performs an operation test of the engine and the aircraft equipment, a selection operation unit to which a selection operation is input, and a signal from the engine according to the selection operation input to the selection operation unit. Selecting means for selecting and transmitting to the first and second operation test units, an engine operation test apparatus. 2. The engine operation test device according to claim 1, wherein the second operation test unit is capable of inputting a signal from the engine and inputting / outputting a signal to / from the aircraft equipment. An engine operation test device comprising a communication unit. 3. The engine operation test device according to claim 1, wherein the second operation test unit includes a simulator unit that simulates a signal to be output from a body on which the engine is mounted. An engine operation test device, comprising: