CN117740383A - Universal engine test system - Google Patents
Universal engine test system Download PDFInfo
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- CN117740383A CN117740383A CN202311768641.7A CN202311768641A CN117740383A CN 117740383 A CN117740383 A CN 117740383A CN 202311768641 A CN202311768641 A CN 202311768641A CN 117740383 A CN117740383 A CN 117740383A
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Abstract
The invention discloses a general engine test system, which comprises a front-end system, a rear-end system and emergency control equipment, wherein the front-end system is connected with the front-end system; the front-end system is used for collecting analog quantity signals of the equipment to be tested in real time; the front-end system is connected with the back-end system, and the back-end system is used for editing and solidifying the test flow according to the analog quantity signal and transmitting the test flow to the front-end system; the front-end system determines a first control instruction and a second control instruction according to the test flow, transmits the first control instruction to the equipment to be tested, and controls the equipment to be tested; transmitting a second control instruction to auxiliary equipment to control the auxiliary equipment; and collecting feedback state signals from the equipment to be tested and the auxiliary equipment in real time; the emergency control device is used for sending an emergency signal through the emergency control box and controlling the output of the first control command and the second control command according to the emergency signal. The invention can meet the test of engines of different types, thereby expanding the application range.
Description
Technical Field
The invention relates to the field of testing of aerospace equipment, in particular to a general engine testing system.
Background
The engine is used as a key single product of the carrier rocket, and in the actual use process, a certain degree of test is required to be passed so as to verify the functions and performances of the engine. When the existing carrier rocket engine relies on the engine test system to carry out test work, the engine test system is usually matched with the engine of the corresponding model so as to realize test operation.
For example, the existing engine test system realizes control of various valves of the air supply and liquid supply equipment through an electric test device and the air supply and liquid supply related equipment, thereby realizing control of an engine work flow. However, because the engines of different models have larger differences to the control flow, the gas-liquid interface and the electrical interface, in the prior art, the engine test system fixedly installed on the test station cannot be compatible with the test and control requirements of the engines of different models, and generally only the engines of corresponding models can be tested, thereby reducing the application range of the device.
Therefore, it is desirable to provide a general-purpose engine test system to effectively solve the above problems.
Disclosure of Invention
The invention aims to provide a general engine test system which can meet the test of engines of different types, thereby expanding the application range.
In order to solve the technical problems, the invention provides a general engine test system, which comprises a front end system, a rear end system and an emergency control box;
the front-end system is connected with equipment to be tested through the switching equipment and is used for collecting analog quantity signals of the equipment to be tested in real time;
the front-end system is connected with the back-end system, and the back-end system is used for editing and solidifying a test flow according to the analog quantity signal and transmitting the test flow to the front-end system;
the front-end system is connected with auxiliary equipment through the switching equipment, determines a first control instruction and a second control instruction according to the test flow, transmits the first control instruction to the equipment to be tested, and controls the equipment to be tested; transmitting the second control instruction to the auxiliary equipment to control the auxiliary equipment; the feedback state signals from the equipment to be tested and the auxiliary equipment are collected in real time and transmitted to the back-end system for processing;
the emergency control equipment comprises an emergency control box and an emergency output box; the emergency output box is positioned in the front-end system and is in independent point-to-point communication with the emergency control box; the emergency output box is used for receiving emergency signals from the emergency control box and controlling the output of the first control command and the second control command according to the emergency signals.
Further, the first control command includes at least one of an output command for controlling the solenoid valve, an ignition output command and a DA analog output command.
Further, the second control instruction comprises at least one of an ignition control instruction and a serial port and bus communication conversion control instruction.
Further, the switching device comprises a control switching box, a first test switching box and a second test switching box.
Further, the front-end system comprises a front-end comprehensive cabinet, a front-end control cabinet and a front-end acquisition cabinet;
the front-end acquisition cabinet is connected with the equipment to be tested through the first test transfer box and the second test transfer box and is used for acquiring analog quantity signals of the equipment to be tested in real time;
the front-end comprehensive cabinet is connected with the equipment to be tested through the second test transfer box; the front-end comprehensive cabinet is connected with the rear-end system and the front-end acquisition cabinet; the front-end integrated cabinet is used for supplying power and communicating front-end data and back-end data;
the front-end control cabinet is connected with the auxiliary equipment through a control transfer box; the front-end control cabinet is used for transmitting the first control instruction to the auxiliary equipment;
the front-end control cabinet is connected with the equipment to be tested through the second test transfer box; the front-end control cabinet is also used for transmitting the second control instruction to the equipment to be tested;
the front-end integrated cabinet is connected with the front-end control cabinet; the front-end control cabinet is also used for collecting feedback state signals from the equipment to be tested and the auxiliary equipment in real time and transmitting the feedback state signals to the back-end system through the front-end comprehensive cabinet;
the emergency output box is positioned in the front-end control cabinet and is in independent point-to-point communication with the emergency control box; the emergency signal sent to the emergency output box by the emergency control box is an emergency stop or emergency power-off instruction, and the emergency signal is used for emergently stopping the test flow under the fault condition.
Further, a front-end switch and a ground power supply are arranged in the front-end integrated cabinet; the front-end exchanger is connected with a back-end exchanger in the back-end system; the ground power supply is connected with the rear end system, the front end control cabinet, the front end acquisition cabinet and the second test transfer box.
Further, the front-end control cabinet comprises a PLC, an output circuit and a serial port or bus server which are connected with each other; the PLC, the output circuit and the serial port or bus server are connected with the front-end integrated cabinet, the emergency control equipment, the control transfer box and the second test transfer box.
Further, the PLC comprises a DI input module, a DO output module and a DA module;
the DI input module is connected with the control transfer box through a DI input conversion relay and is used for receiving a feedback state signal of an ignition output signal of an electromagnetic valve control output box in the auxiliary equipment and an independent emergency signal;
the DO output module is connected with the control transfer box through a DO output conversion relay and an ignition relay circuit and is used for outputting the first control instruction to the auxiliary equipment;
the DA module is connected with the second test transfer box through the DA output isolation module and is used for outputting the second control instruction to the equipment to be tested.
Further, the front-end acquisition cabinet comprises acquisition equipment and a plurality of analog quantity isolation conversion modules; the acquisition equipment is connected with equipment to be tested of different models through the analog quantity isolation conversion module.
Further, the analog quantity isolation conversion module comprises a voltage isolation conversion module and a current isolation conversion module.
Further, the back-end system comprises a back-end data cabinet, a data display terminal, a video display terminal and a flow control terminal;
the back-end data machine cabinet is internally provided with a back-end switch, and the back-end switch is connected with a front-end switch in the front-end system; the back-end data transmission cabinet is connected with the data display terminal, the video display terminal and the flow control terminal; the data display terminal is used for displaying analog quantity signals and feedback state signals from the front-end system; the flow control terminal is used for editing and solidifying a test flow according to the analog quantity signal and transmitting the test flow to the front-end system.
Through the technical scheme, the invention has the following beneficial effects:
setting an emergency control device through a front-end system, a back-end system; the front-end system is connected with the equipment to be tested through the switching equipment and is used for collecting analog quantity signals of the equipment to be tested in real time; the front-end system is connected with the back-end system, and the back-end system is used for editing and solidifying the test flow according to the analog quantity signal and transmitting the test flow to the front-end system; the front-end system is connected with auxiliary equipment through the switching equipment, determines a first control instruction and a second control instruction according to the test flow, and transmits the first control instruction to equipment to be tested to control the equipment to be tested; transmitting a second control instruction to auxiliary equipment to control the auxiliary equipment; the feedback state signals from the equipment to be tested and the auxiliary equipment are collected in real time and transmitted to a back-end system for processing; the emergency control equipment comprises an emergency control box and an emergency output box; the emergency output box is positioned in the front-end system and is in independent point-to-point communication with the emergency control box; the emergency output box is used for receiving emergency signals from the emergency control box and controlling the output of the first control command and the second control command according to the emergency signals. The system can meet the test of engines of different types, so that the application range can be enlarged.
Drawings
FIG. 1 is a block diagram of a general engine test system according to one embodiment of the present invention;
FIG. 2 is a block diagram of a front end control cabinet of a universal engine testing system according to an embodiment of the present invention;
FIG. 3 is a block diagram of a front-end collection cabinet in a general engine testing system according to an embodiment of the present invention;
FIG. 4 is a block diagram of a portion of a general engine test system according to one embodiment of the present invention.
Detailed Description
A general engine test system according to the present invention will be described in greater detail below with reference to the accompanying drawings, in which preferred embodiments of the invention are shown, it being understood that one skilled in the art may modify the invention described herein while still achieving the beneficial effects of the invention. Accordingly, the following description is to be construed as broadly known to those skilled in the art and not as limiting the invention.
The invention is more particularly described by way of example in the following paragraphs with reference to the drawings. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the invention.
As shown in fig. 1, an embodiment of the present invention provides a general engine test system, which includes a front-end system, a back-end system, and an emergency control device.
Specifically, the front-end system is connected with equipment to be tested through a switching device, and is used for collecting analog quantity signals of the equipment to be tested in real time; the front-end system is connected with the back-end system, and the back-end system is used for editing and solidifying a test flow according to the analog quantity signal and transmitting the test flow to the front-end system; the front-end system is connected with auxiliary equipment through the switching equipment, determines a first control instruction and a second control instruction according to the test flow, transmits the first control instruction to the equipment to be tested, and controls the equipment to be tested; transmitting the second control instruction to the auxiliary equipment to control the auxiliary equipment; the feedback state signals from the equipment to be tested and the auxiliary equipment are collected in real time and transmitted to the back-end system for processing; the emergency control equipment comprises an emergency control box and an emergency output box; the emergency output box is positioned in the front-end system and is in independent point-to-point communication with the emergency control box (namely, the emergency output box is in independent point-to-point communication connection with the emergency control box); the emergency output box is used for receiving emergency signals from the emergency control box and controlling the output of the first control command and the second control command according to the emergency signals.
In this embodiment, the device under test may be an engine auxiliary device and may include air and liquid supply devices.
Preferably, the first control command includes at least one of an output command for controlling a solenoid valve, an ignition output command and a DA analog output command.
Preferably, the second control command includes at least one of an ignition control command and a serial port and bus communication conversion control command.
It will be appreciated by those skilled in the art that the first control command and the second control command may be selected and set according to actual requirements. For example, the first control command may be selected and set according to the requirements of the auxiliary device. The second control instruction is selected and set according to the requirements of the device to be tested.
In this embodiment. The switching equipment comprises a control switching box, a first test switching box and a second test switching box.
In this embodiment, the front-end system includes a front-end integrated cabinet, a front-end control cabinet, and a front-end acquisition cabinet.
Specifically, the front-end collection cabinet is connected with the equipment to be tested through the first test transfer box and the second test transfer box and is used for collecting analog quantity signals of the equipment to be tested in real time; the front-end comprehensive cabinet is connected with the equipment to be tested through the second test transfer box; the front-end comprehensive cabinet is connected with the rear-end system and the front-end acquisition cabinet; the front-end integrated cabinet is used for power supply and front-end and back-end data communication (wherein, the front-end and the back-end refer to a front-end system and a back-end system); the front-end control cabinet is connected with the auxiliary equipment through a control transfer box; the front-end control cabinet is used for transmitting the first control instruction to the auxiliary equipment; the front-end control cabinet is connected with the equipment to be tested through the second test transfer box; the front-end control cabinet is also used for transmitting the second control instruction to the equipment to be tested; the front-end integrated cabinet is connected with the front-end control cabinet; the front-end control cabinet is also used for collecting feedback state signals from the equipment to be tested and the auxiliary equipment in real time and transmitting the feedback state signals to the back-end system through the front-end comprehensive cabinet; the emergency output box is positioned in the front-end control cabinet and is in independent point-to-point communication with the emergency control box; the emergency signal sent to the emergency output box by the emergency control box is an emergency stop or emergency power-off instruction, and the emergency signal is used for emergently stopping the test flow under the fault condition.
In a specific example, when the device to be tested is an engine, the front-end collecting cabinet is connected with a sensor of the engine, and analog signals detected by the sensor are collected. In this embodiment, the front-end system is connected to a sensor in the engine.
Preferably, the sensors include 24-way fast-varying sensors and 64-way slow-varying sensors. The 24 paths of rapid change sensors can be directly connected with the front-end integrated cabinet. The 64 paths of slow-changing sensors are connected with the front-end acquisition cabinet.
In one embodiment, the front-end integrated cabinet houses a front-end switch and a ground power supply. Specifically, the front-end switch is connected with a back-end switch in the back-end system; the ground power supply is connected with the rear end system, the front end control cabinet, the front end acquisition cabinet and the second test transfer box.
The ground power supply is a general program-controlled ground power supply and has the functions of program-controlled start and stop, voltage and current adjustment and the like; the ground power supply can be set to 2, one output voltage is 24V, the power supply of equipment in the system and the power supply of a sensor in equipment to be tested are provided, one ground power supply output voltage is 27V, and the control power supply of the equipment to be tested (such as an engine) and a station matched electromagnetic valve and the ignition power supply of the equipment to be tested (such as the engine) are provided.
Further, a front-end switch is arranged in the front-end integrated cabinet. The front-end and back-end switches adopt a dual redundancy stacking design, and the optical fibers of the front-end system and the optical fibers of the back-end system adopt cross interconnection, so that the network reliability of the front-end system and the back-end system is ensured.
In one embodiment, as shown in fig. 2, the front-end control cabinet includes a PLC (programmable logic controller), an output circuit, and a serial port or bus server that are connected to each other. Specifically, the PLC, the output circuit and the serial port or bus server are connected with the front-end integrated cabinet, the emergency control equipment, the control transfer box and the second test transfer box.
In a specific example, the PLC includes a DI input module, a DO output module, and a DA module. Specifically, the DI input module is connected with the control transfer box through a DI input conversion relay and is used for receiving a feedback state signal of an ignition output signal of an electromagnetic valve control output box in the auxiliary equipment and an independent emergency signal; the DO output module is connected with the control transfer box through a DO output conversion relay and an ignition relay circuit and is used for outputting an output instruction of a control electromagnetic valve and a control ignition output instruction in the first control instruction to the auxiliary equipment; the DA module is connected with the second test transfer box through the DA output isolation module and is used for outputting the second control instruction to the equipment to be tested.
Furthermore, the PLC software in the PLC can be responsible for test flow control and emergency shutdown control, and the control flow can be edited and formulated through the flow control software in the back-end system.
In addition, in this embodiment, the ignition relay circuit is composed of a plurality of high-power relays, and the circuit adopts a two-out-of-three redundancy circuit output circuit.
In this embodiment, the serial port or bus server is a universal serial port server, and is connected with the front-end integrated cabinet, the equipment to be tested and the auxiliary equipment through an ethernet interface, and the serial port is controlled to receive and transmit by a flow control terminal in the back-end system, so that the serial port can adapt to the main stream communication baud rates of RS-232, RS-422 and RS-485; the serial port or the bus server can also convert between the serial port server and the bus server according to the requirement, so as to realize conversion between Ethernet and bus, thereby meeting the test requirements of different types of engines.
In one embodiment, as shown in fig. 3, the front-end acquisition cabinet includes an acquisition device and a plurality of analog isolation conversion modules. Specifically, the acquisition equipment is connected with equipment to be tested of different models through the analog quantity isolation conversion module.
In a specific example, the analog isolation conversion module includes a voltage isolation conversion module and a current isolation conversion module.
Specifically, the voltage isolation conversion module is an intelligent conversion module, and different conversion frequencies of 1kHz or 20kHz can be realized through setting of the voltage isolation conversion module; the current isolation conversion module can adapt to various current input modes, and outputs a conversion voltage signal to provide board card unified collection; the number of channels of the isolation conversion module (comprising the voltage isolation conversion module and the current isolation conversion module) can be designed to be maximized so as to adapt to different types of engines, and when the number of the channels still cannot be met, the number and the variety of the isolation conversion module can be adjusted so as to realize adaptation.
In a specific embodiment, as shown in fig. 3, the collecting device may be an industrial computer, and 2 low-speed collecting cards and 1 high-speed collecting card are built in the collecting device, so that collecting capability of 128 paths of 1kHz and 20 paths of 20kHz can be realized; the industrial computer is internally provided with acquisition software, the software has expandable and configurable capacity, and when the computer is added with the low-speed acquisition card or the high-speed acquisition card of the same type, the acquisition channel number is expanded or the sampling frequency is adjusted by setting to finish state change.
In one embodiment, the back-end system includes a back-end data cabinet, a data display terminal, a video display terminal, and a flow control terminal (which is the flow control computer in fig. 1). Specifically, a back-end switch is arranged in the back-end data cabinet, and the back-end switch is connected with a front-end switch in the front-end system; the back-end data transmission cabinet is connected with the data display terminal, the video display terminal and the flow control terminal; the data display terminal is used for displaying analog quantity signals and feedback state signals from the front-end system; the flow control terminal is used for editing and solidifying a test flow according to the analog quantity signal and transmitting the test flow to the front-end system.
In a specific embodiment, the data display terminal and the video display terminal are both built-in with data display software, the data display software is used for displaying various data (analog quantity signals) and states (feedback state signals) in the front-end system, and the data display software is designed in a generalized manner, and built-in channel names and calculation functions are configurable.
The flow control terminal is internally provided with flow control software which is used for testing functions such as flow control and key parameter discrimination. The flow control software is internally provided with a flow editor, can edit a test flow and a PLC control flow, sets key judgment parameters in the flow, and has the capability of configuring channel names and calculation functions.
In a specific example, the back-end data transmission cabinet, the front-end integrated cabinet, the front-end control cabinet, and the front-end acquisition cabinet are all standard 19-inch cabinets. It is known to those skilled in the art that the back-end data transmission cabinet, the front-end integrated cabinet, the front-end control cabinet and the front-end collection cabinet can also be selected and set according to actual situations.
In an embodiment, the emergency control box is a networked intelligent unit, and a plurality of emergency switches with different functions are configured on the emergency control box, so that when the automatic process fails, the emergency switch can be pressed down to control the PLC in the front-end control cabinet to start the emergency shutdown process. In addition, the emergency control box is connected through front and rear independent optical fibers, the front end corresponds to an emergency output box in the front end control cabinet, and the emergency output box directly outputs corresponding instructions to the PLC, so that an emergency control function is realized, and the stability of operation is improved.
Preferably, as shown in fig. 4, the control pod, the first test pod, and the second test pod are all explosion-proof pods. The built-in transfer terminal of explosion-proof transfer box defines the interface in advance, and solenoid valve, sensor signal and power supply all can accomplish signal connection according to the definition.
In addition, the quantity of control transfer case, first test transfer case and second test transfer case all can be set up according to actual demand. For example, with continued reference to FIG. 4, the first test pod is explosion proof pod 1 and explosion proof pod 2 of FIG. 4; the second test pod is the explosion proof pod 3 and the explosion proof pod 4 of fig. 4.
In the embodiment, the front-end system collects analog quantity signals of the equipment to be tested in real time; the back-end system edits and solidifies the test flow according to the analog quantity signal, and transmits the test flow to the front-end system; the front-end system determines a first control instruction and a second control instruction according to the test flow, transmits the first control instruction to the equipment to be tested, and controls the equipment to be tested; transmitting a second control instruction to auxiliary equipment to control the auxiliary equipment; and feedback state signals from the equipment to be tested and the auxiliary equipment are collected in real time and transmitted to a back-end system for processing. Therefore, the test of engines of different models can be met, and the application range of the system is enlarged.
When a fault occurs, the emergency control box sends an emergency stop or emergency power-off instruction (or an emergency power-off instruction) to the emergency output box, so that the test flow can be stopped emergently. Thereby ensuring the safety of the whole system.
In summary, the general engine test system provided by the invention has the following advantages:
setting an emergency control device through a front-end system, a back-end system; the front-end system is connected with the equipment to be tested through the switching equipment and is used for collecting analog quantity signals of the equipment to be tested in real time; the front-end system is connected with the back-end system, and the back-end system is used for editing and solidifying the test flow according to the analog quantity signal and transmitting the test flow to the front-end system; the front-end system is connected with auxiliary equipment through the switching equipment, determines a first control instruction and a second control instruction according to the test flow, and transmits the first control instruction to equipment to be tested to control the equipment to be tested; transmitting a second control instruction to auxiliary equipment to control the auxiliary equipment; the feedback state signals from the equipment to be tested and the auxiliary equipment are collected in real time and transmitted to a back-end system for processing; the emergency control equipment comprises an emergency control box and an emergency output box; the emergency output box is positioned in the front-end system and is in independent point-to-point communication with the emergency control box; the emergency output box is used for receiving emergency signals from the emergency control box and controlling the output of the first control command and the second control command according to the emergency signals. The system can meet the test of engines of different types, so that the application range can be enlarged.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (11)
1. The universal engine test system is characterized by comprising a front-end system, a rear-end system and emergency control equipment;
the front-end system is connected with equipment to be tested through the switching equipment and is used for collecting analog quantity signals of the equipment to be tested in real time;
the front-end system is connected with the back-end system, and the back-end system is used for editing and solidifying a test flow according to the analog quantity signal and transmitting the test flow to the front-end system;
the front-end system is connected with auxiliary equipment through the switching equipment, determines a first control instruction and a second control instruction according to the test flow, transmits the first control instruction to the equipment to be tested, and controls the equipment to be tested; transmitting the second control instruction to the auxiliary equipment to control the auxiliary equipment; the feedback state signals from the equipment to be tested and the auxiliary equipment are collected in real time and transmitted to the back-end system for processing;
the emergency control equipment comprises an emergency control box and an emergency output box; the emergency output box is positioned in the front-end system and is in independent point-to-point communication with the emergency control box; the emergency output box is used for receiving emergency signals from the emergency control box and controlling the output of the first control command and the second control command according to the emergency signals.
2. The universal engine test system of claim 1, wherein the first control command includes at least one of an output command to control a solenoid valve, an ignition output command, and a DA analog output command.
3. The universal engine test system of claim 1, wherein the second control command includes at least one of a control firing command and a control serial port and bus communication switching command.
4. The universal engine test system of claim 1, wherein the adapter device comprises a control adapter box, a first test adapter box, and a second test adapter box.
5. The universal engine testing system of claim 4, wherein the front-end system comprises a front-end integrated cabinet, a front-end control cabinet, and a front-end acquisition cabinet;
the front-end acquisition cabinet is connected with the equipment to be tested through the first test transfer box and the second test transfer box and is used for acquiring analog quantity signals of the equipment to be tested in real time;
the front-end comprehensive cabinet is connected with the equipment to be tested through the second test transfer box; the front-end comprehensive cabinet is connected with the rear-end system and the front-end acquisition cabinet; the front-end integrated cabinet is used for supplying power and communicating front-end data and back-end data;
the front-end control cabinet is connected with the auxiliary equipment through a control transfer box; the front-end control cabinet is used for transmitting the first control instruction to the auxiliary equipment;
the front-end control cabinet is connected with the equipment to be tested through the second test transfer box; the front-end control cabinet is also used for transmitting the second control instruction to the equipment to be tested;
the front-end integrated cabinet is connected with the front-end control cabinet; the front-end control cabinet is also used for collecting feedback state signals from the equipment to be tested and the auxiliary equipment in real time and transmitting the feedback state signals to the back-end system through the front-end comprehensive cabinet;
the emergency output box is positioned in the front-end control cabinet and is in independent point-to-point communication with the emergency control box; the emergency signal sent to the emergency output box by the emergency control box is an emergency stop or emergency power-off instruction, and the emergency signal is used for emergently stopping the test flow under the fault condition.
6. The universal engine testing system of claim 5, wherein the front-end integrated cabinet houses a front-end switch and a ground power supply; the front-end exchanger is connected with a back-end exchanger in the back-end system; the ground power supply is connected with the rear end system, the front end control cabinet, the front end acquisition cabinet and the second test transfer box.
7. The universal engine testing system of claim 4, wherein the front-end control cabinet comprises a PLC, an output circuit, and a serial port or bus server connected to each other; the PLC, the output circuit and the serial port or bus server are connected with the front-end integrated cabinet, the emergency control equipment, the control transfer box and the second test transfer box.
8. The universal engine test system of claim 7, wherein the PLC includes a DI input module, a DO output module, and a DA module;
the DI input module is connected with the control transfer box through a DI input conversion relay and is used for receiving a feedback state signal of an ignition output signal of an electromagnetic valve control output box in the auxiliary equipment and an independent emergency signal;
the DO output module is connected with the control transfer box through a DO output conversion relay and an ignition relay circuit and is used for outputting the first control instruction to the auxiliary equipment;
the DA module is connected with the second test transfer box through the DA output isolation module and is used for outputting the second control instruction to the equipment to be tested.
9. The universal engine testing system of claim 1, wherein the front-end acquisition cabinet comprises an acquisition device and a plurality of analog isolation conversion modules; the acquisition equipment is connected with equipment to be tested of different models through the analog quantity isolation conversion module.
10. The universal engine test system of claim 6, wherein the analog isolating conversion module comprises a voltage isolating conversion module and a current isolating conversion module.
11. The universal engine test system of claim 1, wherein the back-end system comprises a back-end data cabinet, a data display terminal, a video display terminal, and a flow control terminal;
the back-end data machine cabinet is internally provided with a back-end switch, and the back-end switch is connected with a front-end switch in the front-end system; the back-end data transmission cabinet is connected with the data display terminal, the video display terminal and the flow control terminal; the data display terminal is used for displaying analog quantity signals and feedback state signals from the front-end system; the flow control terminal is used for editing and solidifying a test flow according to the analog quantity signal and transmitting the test flow to the front-end system.
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| CN202311768641.7A CN117740383A (en) | 2023-12-20 | 2023-12-20 | Universal engine test system |
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| CN202311768641.7A CN117740383A (en) | 2023-12-20 | 2023-12-20 | Universal engine test system |
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| CN117740383A true CN117740383A (en) | 2024-03-22 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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