A test device for an engine control system

Abstract

This application discloses a testing device for an engine control system, which includes an oil pump testing module, a hot spark head testing module, a starter motor testing module, and a data acquisition testing module. It can perform the above-mentioned multiple tests on the engine control system at the same time, realizing the complete testing of the engine control system through a single testing device. This avoids the need for multiple testing devices to test the engine control system separately, thus simplifying the testing process.

Description

Technical Field

[0001] This application relates to the field of testing, and more particularly to a testing apparatus for an engine control system. Background Technology

[0002] Turbojet engines can be divided into structural and control components. In engine design, the structural and control components are designed separately. When conducting tests, especially for the control components, it would be cumbersome and time-consuming to perform them on an actual engine. Therefore, it is unnecessary to test the control components on an actual engine.

[0003] Currently, when testing the engine control unit using a test bench, only a single function is tested, rather than a complete test of the engine control unit. Summary of the Invention

[0004] In view of this, this application provides a testing device for an engine control system, the specific solution of which is as follows:

[0005] A testing apparatus for an engine control system, comprising:

[0006] The oil pump test module is used to turn on the oil pump based on the oil pump test command sent by the engine control system, and to perform oil pump control test based on the first detection value of the oil pump test circuit of the oil pump test module.

[0007] The hot-fire head test module is used to adjust the resistance value of the low-power sliding rheostat in the hot-fire head test module based on the hot-fire head test command sent by the engine control system, and to perform hot-fire head control test based on the second detection value of the hot-fire head test circuit of the hot-fire head test module.

[0008] The starter test module is used to adjust the resistance value of the high-power sliding rheostat in the starter test module based on the starter test command sent by the engine control system, and to perform starter control test based on the third detection value in the starter test circuit of the starter test module.

[0009] The acquisition and testing module is used to adjust the frequency of the pulse width modulation generator based on the acquisition and testing command sent by the engine control system, and to perform acquisition and control testing based on the fourth detection value in the acquisition and testing loop of the acquisition and testing module.

[0010] The power supply module is connected to the oil pump test module, the hot spark test module, the starter test module, and the data acquisition test module, respectively, and provides power to the oil pump test module, the hot spark test module, the starter test module, and the data acquisition test module.

[0011] Furthermore, it also includes:

[0012] The control module is used to determine whether the first detection value meets the test standard of the oil pump test instruction, and / or, whether the second detection value meets the test standard of the hot burner test instruction, and / or, whether the third detection value meets the test standard of the starter test instruction, and / or, whether the fourth detection value meets the test standard of the acquisition test instruction.

[0013] Furthermore, it also includes:

[0014] A fixed structure is provided for fixing the engine control system under test. The engine control system under test, fixed on the fixed structure, is connected to the control module, oil pump test module, hot spark test module, starter test module, and data acquisition test module. It can obtain the first control signal, second control signal, third control signal, or fourth control signal output by the control module. Based on the first control signal, it controls the oil pump test module to perform oil pump testing on the engine control system under test; based on the second control signal, it controls the hot spark test module to perform hot spark testing on the engine control system under test; based on the third control signal, it controls the starter test module to perform starter testing on the engine control system under test; and based on the fourth control signal, it controls the data acquisition test module to perform data acquisition testing on the engine control system under test.

[0015] Furthermore, the oil pump testing module includes:

[0016] The oil pump body is used to open based on the oil pump test command;

[0017] An oil valve connected to the oil pump body is used to adjust the valve opening degree of the oil valve based on the oil pump test command;

[0018] Flow control valve, used to regulate turbine flow;

[0019] The first detection structure is used to collect the first detection value in the oil pump test circuit of the oil pump test module. The first detection value includes at least: a first current value, a first voltage value, a flow rate value, or an oil pressure value.

[0020] Furthermore, the oil pump testing module also includes:

[0021] An oil pump indicator light connected to the oil pump body is used to indicate whether the oil pump body is turned on;

[0022] An oil valve indicator light connected to the oil valve is used to indicate whether the oil valve is open.

[0023] Furthermore, the hot-head testing module includes:

[0024] The first control switch is used to be turned on based on the hot head test command;

[0025] A low-power sliding rheostat is used to adjust the resistance value of the low-power sliding rheostat to match the hot spark head in the engine based on the hot spark head test command;

[0026] The second detection structure is used to detect a second detection value in the hot-fire head test circuit of the hot-fire head test module. The second detection value includes at least a second current value and a second voltage value.

[0027] Furthermore, the hot-head testing module also includes:

[0028] The first control switch indicator light is used to indicate whether the first control switch is turned on.

[0029] Furthermore, the starter motor testing module includes:

[0030] The second control switch is used to be turned on based on the starter test command;

[0031] A high-power sliding rheostat is used to adjust the resistance value of the high-power rheostat to match the starter motor in the engine based on the starter motor test command;

[0032] A brushless motor is used to control the rotation of the brushless motor when the starter test command determines that the brushless motor will be tested.

[0033] The third detection structure is used to detect a third detection value in the starter test circuit of the starter test module. The third detection value includes at least a third current value and a third voltage value.

[0034] Furthermore, the data acquisition and testing module includes:

[0035] A pulse width modulation generator, connected to the fixed structure, is used to adjust the frequency of the pulse width modulation generator based on the acquisition test command when determining to acquire the speed of the engine control system under test based on the acquisition test command.

[0036] A thermocouple, connected to the fixed structure, is used to collect temperature data from the engine control system under test when a data acquisition test command is received.

[0037] Furthermore, it also includes:

[0038] The test bench includes an inclined surface and a horizontal surface.

[0039] The horizontal plane is used to support the test bench;

[0040] The oil pump test module, hot spot test module, starter test module, data acquisition test module, and power supply module are mounted on the inclined surface of the test bench.

[0041] As can be seen from the above technical solution, the engine control system testing device disclosed in this application includes: an oil pump testing module, used to turn on the oil pump based on an oil pump test command sent by the engine control system, and to perform oil pump control testing based on a first detection value of the oil pump test circuit of the oil pump testing module; a hot-spark test module, used to adjust the resistance value of a small-power sliding rheostat in the hot-spark test module based on a hot-spark test command sent by the engine control system, and to perform hot-spark control testing based on a second detection value of the hot-spark test circuit of the hot-spark test module; a starter test module, used to adjust the resistance value of a large-power sliding rheostat in the starter test module based on a starter test command sent by the engine control system, and to perform starter control testing based on a third detection value of the starter test circuit of the starter test module; an acquisition test module, used to adjust the frequency of a pulse width modulation generator based on an acquisition test command sent by the engine control system, and to perform acquisition control testing based on a fourth detection value of the acquisition test circuit of the acquisition test module; and a power supply module, which is connected to the oil pump testing module, the hot-spark test module, the starter test module, and the acquisition test module respectively and provides power. The engine control system testing device disclosed in this solution has an oil pump testing module, a hot spark head testing module, a starter motor testing module, and a data acquisition testing module. It can perform the above-mentioned multiple tests on the engine control system at the same time, realizing the complete testing of the engine control system through a single testing device. This avoids the need for multiple testing devices to test the engine control system separately, thus simplifying the testing process. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0043] Figure 1 This is a schematic diagram of the structure of a test device for an engine control system disclosed in an embodiment of this application;

[0044] Figure 2 This is a schematic diagram of the structure of a test device for an engine control system disclosed in an embodiment of this application;

[0045] Figure 3 This is a schematic diagram of the structure of an oil pump testing module in a testing device disclosed in an embodiment of this application;

[0046] Figure 4 This is a schematic diagram of the structure of a hot-fire head testing module in a testing device disclosed in an embodiment of this application;

[0047] Figure 5 This is a schematic diagram of the starter test module in a test device disclosed in an embodiment of this application;

[0048] Figure 6 This is a schematic diagram of the structure of a test device for an engine control system disclosed in an embodiment of this application;

[0049] Figure 7 This is a schematic diagram of a test device placed on a test bench, as disclosed in an embodiment of this application;

[0050] Figure 8 This is a schematic diagram of a test device placed on a test bench, as disclosed in an embodiment of this application. Detailed Implementation

[0051] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0052] This embodiment discloses a testing device for an engine control system, the schematic diagram of which is shown below. Figure 1 As shown, it includes:

[0053] Oil pump test module 11, hot spot test module 12, starter test module 13, data acquisition test module 14, and power supply module 15.

[0054] Among them, the oil pump test module 11 is used to open the oil pump based on the oil pump test command sent by the engine control system, and to perform oil pump control test based on the first detection value of the oil pump test circuit of the oil pump test module.

[0055] The hot head test module 12 is used to adjust the resistance value of the low-power sliding rheostat in the hot head test module based on the hot head test command sent by the engine control system, and to perform hot head control test based on the second detection value of the hot head test circuit of the hot head test module.

[0056] The starter test module 13 is used to adjust the resistance value of the high-power sliding rheostat in the starter test module based on the starter test command sent by the engine control system, and to perform starter control test based on the third detection value in the starter test circuit of the starter test module.

[0057] The acquisition and testing module 14 is used to adjust the frequency of the pulse width modulation generator based on the acquisition and testing command sent by the engine control system, and to perform acquisition and control testing based on the fourth detection value in the acquisition and testing loop of the acquisition and testing module.

[0058] The power supply module 15 is connected to the oil pump test module, the hot spark test module, the starter test module, and the data acquisition test module, respectively, and provides power to the oil pump test module, the hot spark test module, the starter test module, and the data acquisition test module.

[0059] A turbojet engine is a type of turbine engine that relies entirely on the flow of combustion gases to generate thrust. A turbojet engine uses air as its medium. The intake delivers the required outside air to the compressor with minimal flow loss. The compressor compresses the air using high-speed rotating blades, increasing its pressure. In the combustion chamber, the air mixes and burns with fuel, converting the fuel's chemical energy into heat energy to generate high-temperature, high-pressure combustion gases. These gases expand within the turbine, converting heat energy into mechanical energy, driving the turbine to rotate and powering the compressor. Simultaneously, the combustion gases are expelled at high speed, generating thrust.

[0060] A turbojet engine can be divided into a structural component and a control component. The control component is the engine control unit (ECU). In engine design, the structural and control components are designed separately, but ultimately require overall verification and testing. Typically, testing the basic functions of the control component does not require testing on an actual engine to save testing steps and time. Therefore, testing the control component is usually performed on a test bench to check whether its functions are normal.

[0061] Test benches typically simulate and test a single function, which means that multiple different test benches are needed to test all functions of the control unit, making the testing process cumbersome.

[0062] To address this issue, this solution discloses a testing device for an engine control system. This device can test the oil pump function, the hot runner function, the starter function, and the data acquisition function of the engine control system. It enables a complete test of all functions of the engine control system using a single device, simplifying the testing process.

[0063] Specifically, the testing device includes: an oil pump testing module, which can receive oil pump testing commands sent by the engine control system, turn on the oil pump based on the oil pump testing commands, and perform oil pump control testing based on the first detection value of the oil pump testing circuit of the oil pump testing module.

[0064] The oil pump test module tests the oil pump test command issued by the engine control system, which is to test the oil pump function. During the test, the oil pump test module forms an oil pump test loop to obtain the test value, namely the first detection value. The test device can determine whether the engine control system passes the oil pump test by analyzing the first detection value.

[0065] The testing device may further include: a hot-fire head testing module, which is capable of receiving hot-fire head testing commands sent by the engine control system, adjusting the resistance value of the low-power sliding rheostat in the hot-fire head testing module based on the hot-fire head testing commands, and performing hot-fire head control testing based on the second detection value of the hot-fire head testing circuit of the hot-fire head testing module.

[0066] The hot-spot test module tests the hot-spot test command issued by the engine control system, which is to test the hot-spot function. During the test, the hot-spot test module forms a hot-spot test loop to obtain the test value, i.e. the second detection value. The test device can determine whether the engine control system passes the hot-spot test by analyzing the second detection value.

[0067] The hot-fire head testing module includes a low-power sliding rheostat, which replaces the hot-fire head and simulates it to obtain the resistance and current of the simulated hot-fire head. This avoids the dangers of high temperatures caused by using a hot-fire head in the testing device.

[0068] The testing device may also include: a starter test module, which is capable of receiving starter test commands sent by the engine control system, adjusting the resistance value of the high-power sliding rheostat in the starter test module based on the starter test commands, and performing starter control tests based on the third detection value in the starter test circuit of the starter test module.

[0069] The starter test module tests the starter test command issued by the engine control system, which is to test the starter function. During the test, the starter test module forms a starter test circuit to obtain the test value, namely the third detection value. The test device can determine whether the engine control system passes the starter test by analyzing the third detection value.

[0070] The starter test module includes a high-power sliding rheostat, which replaces the starter motor and simulates it to obtain the resistance and current of the simulated starter motor. This avoids the noise and danger problems caused by collecting data from the starter motor during the test. In addition, by replacing the starter motor with a high-power sliding rheostat, it is also possible to simulate different current states of the starter motor.

[0071] The testing device may also include: an acquisition test module, which is capable of obtaining acquisition test commands sent by the engine control system, adjusting the frequency of the pulse width modulation generator based on the acquisition test commands, and performing acquisition control tests based on the fourth detection value in the acquisition test loop of the acquisition test module.

[0072] The acquisition test module tests the acquisition test commands issued by the engine control system, which is to realize the acquisition function test. During the test, the acquisition test module forms an acquisition test loop to obtain the test value, namely the fourth detection value. The test device can determine whether the engine control system passes the acquisition test by analyzing the fourth detection value.

[0073] In addition, the testing device may also include a power supply module, which is connected to the oil pump testing module, the hot spark head testing module, the starter testing module and the data acquisition testing module respectively, to provide power to each module to ensure the normal operation of each module, thereby realizing the testing of the engine control system.

[0074] The engine control system testing device disclosed in this embodiment includes: an oil pump testing module, used to turn on the oil pump based on an oil pump test command sent by the engine control system, and to perform oil pump control testing based on a first detection value of the oil pump test circuit of the oil pump testing module; a hot-spark test module, used to adjust the resistance value of a small-power sliding rheostat in the hot-spark test module based on a hot-spark test command sent by the engine control system, and to perform hot-spark control testing based on a second detection value of the hot-spark test circuit of the hot-spark test module; a starter test module, used to adjust the resistance value of a large-power sliding rheostat in the starter test module based on a starter test command sent by the engine control system, and to perform starter control testing based on a third detection value of the starter test circuit of the starter test module; an acquisition test module, used to adjust the frequency of a pulse width modulation generator based on an acquisition test command sent by the engine control system, and to perform acquisition control testing based on a fourth detection value of the acquisition test circuit of the acquisition test module; and a power supply module, connected to and providing power to the oil pump testing module, the hot-spark test module, the starter test module, and the acquisition test module respectively. The engine control system testing device disclosed in this solution has an oil pump testing module, a hot spark head testing module, a starter motor testing module, and a data acquisition testing module. It can perform the above-mentioned multiple tests on the engine control system at the same time, realizing the complete testing of the engine control system through a single testing device. This avoids the need for multiple testing devices to test the engine control system separately, thus simplifying the testing process.

[0075] This embodiment discloses a testing device for an engine control system, the schematic diagram of which is shown below. Figure 2 As shown, it includes:

[0076] Oil pump test module 21, hot spot test module 22, starter test module 23, data acquisition test module 24, power supply module 25 and control module 26.

[0077] In addition to the same structure as the previous embodiment, this embodiment also adds a control module 26.

[0078] The control module is used to determine whether the first detection value meets the test standard of the oil pump test instruction, and / or, whether the second detection value meets the test standard of the hot burner test instruction, and / or, whether the third detection value meets the test standard of the starter test instruction, and / or, whether the fourth detection value meets the test standard of the acquisition test instruction.

[0079] The control module can be a host computer that can analyze the detection values ​​detected by each test module in the test device to determine whether the detection value meets the test standard of the type corresponding to the detection value. If it does not meet the corresponding test standard, it means that the function corresponding to the detection value has failed the test of the test device; if it meets the corresponding test standard, it means that the function corresponding to the detection value has passed the test of the test device.

[0080] For example, when testing the oil pump function in an engine control system, a first detection value is obtained. If the control module determines that the first detection value meets the test standards of the oil pump test instruction, then the test of the oil pump function of the engine control system is deemed to have passed; if the first detection value does not meet the test standards of the oil pump test instruction, then the test of the oil pump function of the engine control system is deemed to have failed. Whether the test of the oil pump function of the engine control system passes or fails does not affect the testing process and results of other functions of the engine control system.

[0081] Similarly, the testing of other functions of the engine control system is similar to the examples above, and will not be described in detail here.

[0082] In addition, the control module is also used to: output control signals to the engine control system so that the engine control system can obtain the control signals and output corresponding control commands to the corresponding test devices based on the control signals, thereby realizing the testing of different functions in the engine control system.

[0083] For example, the control module outputs a second control signal to the engine control system. The engine control signal determines that the second control signal is used to instruct the hot-fire head function to be tested. Based on the second control signal, the engine control signal generates a hot-fire head test command. Based on the hot-fire head test command, the resistance value of the low-power sliding rheostat is adjusted to obtain the second detection value. The control module further analyzes and judges the second detection value to determine whether the second detection value meets the test standard of the hot-fire head test command, thereby determining whether the engine control system passes the hot-fire head test.

[0084] Accordingly, if the control module outputs a first control signal to the engine control system, the engine control system outputs an oil pump test command based on the first control signal; if the control module outputs a third control signal to the engine control system, the engine control system outputs a starter test command based on the third control command; if the control module outputs a fourth control signal to the engine control system, the engine control system outputs an acquisition test command based on the fourth control command.

[0085] Furthermore, the testing apparatus disclosed in this embodiment may also include a fixing structure.

[0086] The fixed structure is used to fix the engine control system under test. The engine control system fixed to the fixed structure is connected to the control module, oil pump test module, hot spark test module, starter test module, and data acquisition test module, respectively, and can obtain a first control signal, a second control signal, a third control signal, or a fourth control signal output by the control module. If the engine control system fixed to the fixed structure obtains the first control signal, it controls the oil pump test module to perform an oil pump test on the engine control system based on the first control signal; if the engine control system fixed to the fixed structure obtains the second control signal, it controls the hot spark test module to perform a hot spark test on the engine control system based on the second control signal; if the engine control system fixed to the fixed structure obtains the third control signal, it controls the starter test module to perform a starter test on the engine control system based on the third control signal; if the engine control system fixed to the fixed structure obtains the fourth control signal, it controls the data acquisition test module to perform a data acquisition test on the engine control system based on the fourth control signal.

[0087] The testing device has a fixing structure for securing the engine control system under test to the device. Only engine control systems fixed in place by this structure can be tested for their various functions. The engine control system fixed to the structure can connect to each test module and the power module, receive control signals from the control module, and output corresponding control commands to the relevant test modules based on these signals. This generates test values, which are then sent to the control module, allowing the control module to determine whether the specific function of the engine control system fixed to the structure has passed the test.

[0088] The engine control system under test is fixed to the test device by a fixed structure to complete the test. The engine control system fixed at the fixed structure position can be replaced. Only the engine control system under test will be fixed to the fixed structure. After the test of a certain engine control system is completed, the engine control system is removed from the fixed structure so that other engine control systems can be functionally tested.

[0089] The engine control system testing device disclosed in this embodiment includes: an oil pump testing module, a hot spark head testing module, a starter testing module, a data acquisition testing module, a power supply module, and a control module. The control module is used to determine whether the first detection value, the second detection value, the third detection value, and / or the fourth detection value meet the test standards, and to determine whether the tests of each function in the engine control system have passed, thereby realizing the testing of each function in the engine control system and obtaining the test results of each function. The testing of each function in the engine control system can be realized through a single testing device, simplifying the testing process.

[0090] The test apparatus for the engine control system disclosed in this embodiment is shown in the schematic diagram below. Figure 1 As shown, it includes:

[0091] Oil pump test module 11, hot spot test module 12, starter test module 13, data acquisition test module 14, and power supply module 15.

[0092] The structural schematic diagram of the oil pump test module 11 is shown below. Figure 3 As shown, it includes: an oil pump body 111, an oil valve 112, a flow regulating valve 113, and a first detection structure 114.

[0093] The oil pump body is used to open based on test commands;

[0094] The oil valve is connected to the oil pump body and is used to adjust the valve opening based on the oil pump test command;

[0095] Flow control valve, used to regulate turbine flow;

[0096] The first detection structure is used to collect the first detection value in the oil pump test circuit of the oil pump test module. The first detection value includes at least: the first current value, the first voltage value, the flow rate value, or the oil pressure value.

[0097] The first detection structure may include: an ammeter for detecting the current value in the oil pump test circuit; a voltmeter for detecting the voltage value at the oil pump in the oil pump test circuit; a turbine flow meter for detecting the current turbine flow in the oil pump test circuit; and a fuel pressure gauge for detecting the fuel pressure value in the oil pump test circuit.

[0098] In addition, the oil pump test module may also include: an oil pump indicator light 115 and an oil valve indicator light 116. The oil pump indicator light is connected to the oil pump body and is used to indicate whether the oil pump body is open; the oil valve indicator light is connected to the oil valve and is used to indicate whether the oil valve is open.

[0099] When a fuel pump function test is required, the control module sends a first control signal. The engine control system, fixed in a fixed structural position, receives the first control signal and generates a fuel pump test command based on the first control signal. Based on the fuel pump test command, the fuel valve is opened, and the fuel pump is turned on. At this time, the voltmeter used to measure the fuel pump voltage detects the first voltage value, and the ammeter used to measure the current in the fuel pump test circuit detects the first current value. Simultaneously, the fuel pressure gauge displays the current fuel pressure value, and the turbine flow meter displays the current flow rate. If the flow regulating valve is adjusted, the fuel pressure, flow rate, current, and voltage will all change accordingly.

[0100] The oil pump test command instructs the oil pump to open. If the oil pump fails to open based on the test command, the test fails. If the oil pump opens based on the test command, subsequent tests continue. The oil pump test command also indicates a flow range. The flow control valve is adjusted based on this range. If the flow rate detected by the turbine flow meter matches the flow range in the test command, the oil pump function test of the engine control system passes. If the flow rate detected by the turbine flow meter does not match the flow range in the test command, the oil pump function test of the engine control system fails.

[0101] If the oil pump function test of the engine control system passes, the control module will output a prompt indicating that the oil pump function test has passed. If the oil pump function test of the engine control system fails, the control module will output a prompt indicating that the oil pump function test has failed, so that the operator can make timely adjustments to the engine control system.

[0102] When the oil valve is open, the oil valve indicator light illuminates; when the oil valve is closed, the oil valve indicator light goes out. When the oil pump is turned on, the oil pump indicator light illuminates; when the oil pump is turned off, the oil pump indicator light goes out.

[0103] There can be two oil valves.

[0104] The engine control system testing device disclosed in this embodiment includes: an oil pump testing module, a hot burner testing module, a starter testing module, a data acquisition testing module, and a power supply module. The oil pump testing module includes: an oil pump body, an oil valve, a flow regulating valve, and a first detection structure. The oil pump testing module is used to test the oil pump function of the engine control system.

[0105] The test apparatus for the engine control system disclosed in this embodiment is shown in the schematic diagram below. Figure 1 As shown, it includes:

[0106] Oil pump test module 11, hot spot test module 12, starter test module 13, data acquisition test module 14, and power supply module 15.

[0107] The structural diagram of the heat head test module 12 is shown below. Figure 4 As shown, it includes: a first control switch 121, a low-power sliding rheostat 122 and a second detection structure 123.

[0108] The first control switch is used to open based on the hot head test command;

[0109] A low-power sliding rheostat is used to adjust the resistance value of the low-power sliding rheostat to match the hot spark in the engine based on the hot spark test command;

[0110] The second detection structure is used to detect the second detection value in the hot-fire head test circuit of the hot-fire head test module. The second detection value includes at least the second current value and the second voltage value.

[0111] The second detection structure may include: an ammeter to detect the current value in the hot-fire head test circuit, and a voltmeter to detect the voltage value of the low-power sliding rheostat in the hot-fire head test module. The ammeter and voltmeter can be implemented using a single ammeter and voltmeter, or a combination of both.

[0112] Additionally, the hot spot test module may also include a first control switch indicator light to indicate whether the first control switch is on. When the first control switch is on, the first control switch indicator light illuminates; when the first control switch is off, the first control switch indicator light goes out.

[0113] When a hot-fire head test is required, the control module sends a second control signal. The engine control system, fixed in a fixed structural position, receives this second control signal and generates a hot-fire head test command based on it. The first control switch is then activated based on this command, and its indicator light illuminates. At this time, the second current value in the hot-fire head test circuit can be detected using an ammeter, and the voltage of the low-power sliding rheostat in the hot-fire head test circuit can be detected using a voltmeter.

[0114] The hot-spot test command instructs the first control switch to open. The opening status is determined by the indicator light on the first switch. If the indicator light is off, the first control switch is not open, and the test fails. If the hot-spot test command opens the first control switch (i.e., the indicator light illuminates), the first control switch is open, and subsequent tests can continue. Since the hot-spot test command also indicates the resistance value of the low-power sliding rheostat to match the resistance of the hot-spot in the actual engine, the resistance of the low-power sliding rheostat is adjusted based on the command. A voltmeter is used to determine if the voltage of the low-power sliding rheostat falls within the voltage range specified in the hot-spot test command. Alternatively, an ammeter is used to determine if the current value in the hot-spot test circuit falls within the current range specified in the hot-spot test command, thus determining whether the hot-spot test of the engine control system passes.

[0115] The method of adjusting the resistance value of the low-power sliding rheostat based on the hot-fire head test command can be as follows: when a hot-fire head test is required, upon receiving the hot-fire head test command, the low-power sliding rheostat is directly adjusted to the middle position so that the resistance value of the low-power sliding rheostat is the same as the actual resistance value of the hot-fire head.

[0116] If the hot-spark function test of the engine control system passes, the control module will output a message indicating that the hot-spark function test has passed. If the hot-spark function test of the engine control system fails, the control module will output a message indicating that the hot-spark test has failed, so that the operator can make timely adjustments to the engine control system.

[0117] The test device for the engine control system disclosed in this embodiment includes: an oil pump test module, a hot spark test module, a starter test module, a data acquisition test module, and a power supply module. The hot spark test module includes: a first control switch, a low-power sliding rheostat, and a second detection structure. The low-power sliding rheostat simulates the actual hot spark, avoiding the problem of excessive temperature caused by using an actual hot spark during the test. The hot spark test module is used to test the hot spark function of the engine control system.

[0118] Furthermore, a schematic diagram of the starter test module in the engine control system test module disclosed in this embodiment is shown below. Figure 5 As shown, it includes:

[0119] The system includes a second control switch 131, a high-power sliding rheostat 132, a brushless motor 133, and a third detection structure 134.

[0120] The second control switch is used to open based on a starter test command;

[0121] A high-power sliding rheostat is used to adjust the resistance value of the high-power rheostat to match the starter motor in the engine based on starter motor test commands.

[0122] A brushless motor is used to control the rotation of the brushless motor when the test is determined based on the starter test command.

[0123] The third detection structure is used to detect the third detection value in the starter test circuit of the starter test module. The third detection value includes at least the third current value and the third voltage value.

[0124] The third detection structure may include: an ammeter to detect the current value in the starter test circuit, and a voltmeter to detect the voltage value of the high-power sliding rheostat in the starter test module.

[0125] Additionally, the starter test module may include a second control switch indicator light, which indicates whether the second control switch is on. When the second control switch is on, the indicator light illuminates; when the second control switch is off, the indicator light turns off.

[0126] When a starter motor test is required, the control module sends a third control signal. The engine control system, fixed in a fixed structural position, receives this third control signal and generates a starter motor test command based on it. Based on this command, the second control switch is activated, and its indicator light illuminates. At this time, the third current value in the starter motor test circuit can be detected using an ammeter, and the voltage across the high-power sliding rheostat in the starter motor test module can be detected using a voltmeter.

[0127] The starter test command instructs the second control switch to open. Whether it is open is confirmed by the second switch control indicator light. If the second switch control indicator light is not illuminated, it indicates that the second control switch is not open, and the test fails. If the starter test command controls the second control switch to open (i.e., the second control switch indicator light illuminates), it indicates that the second control switch is open, and subsequent tests continue. Since the starter test command also indicates the resistance value of the high-power sliding rheostat to ensure that its resistance matches the actual starter motor resistance, the resistance value of the high-power sliding rheostat is adjusted based on the starter test command. A voltmeter is used to determine whether the voltage across the high-power sliding rheostat meets the voltage range specified in the starter test command, or an ammeter is used to determine whether the current value in the starter test circuit meets the current range specified in the starter test command. This determines whether the starter test of the engine control system passes.

[0128] The method of adjusting the resistance value of the high-power sliding rheostat based on the starter test command can be as follows: when a starter test is required, upon receiving the starter test command, the high-power sliding rheostat is directly adjusted to the middle position so that the resistance value of the high-power sliding rheostat is the same as the actual resistance value of the starter.

[0129] It should be noted that when testing a brushed motor, the high-power sliding rheostat should be adjusted to the middle position, and the current and voltage in the circuit should be displayed using an ammeter and a voltmeter. When testing a brushless motor, the wiring harness should be connected to the brushless motor. When a starter test command is received, the brushless motor will rotate, and the current and voltage in the circuit can be displayed using an ammeter and a voltmeter.

[0130] If the starter function test of the engine control system passes, the control module outputs a prompt indicating that the starter function test has passed. If the starter function test of the engine control system fails, the control module outputs a prompt indicating that the starter test has failed, so that the operator can make timely adjustments to the engine control system.

[0131] The engine control system testing device disclosed in this embodiment includes: an oil pump testing module, a hot burner testing module, a starter testing module, a data acquisition testing module, and a power supply module. The starter testing module includes: a second control switch, a high-power sliding rheostat, a brushless motor, and a third detection structure. The high-power sliding rheostat simulates an actual starter, avoiding the dangers or noise problems caused by using an actual starter during testing. The starter testing module is used to test the starter function of the engine control system.

[0132] Furthermore, in the test apparatus for the engine control system disclosed in this embodiment, the data acquisition and testing module may include:

[0133] A pulse modulation generator, connected to a fixed structure, is used to adjust the frequency of the pulse width modulation generator based on the acquisition test command when the engine speed of the engine control system under test is determined to be acquired based on the acquisition test command.

[0134] A thermocouple, connected to a fixed structure, is used to collect temperature data from the engine control system under test when a test command is received.

[0135] The engine speed is simulated by using the frequency of the pulse width modulation (PWM) generator, thereby enabling the acquisition of engine speed. The frequency of the PWM generator can be determined based on the acquisition test command. The determined frequency of the PWM generator will also be different when the acquisition test command is different.

[0136] Correspondingly, the temperature is collected by thermocouples, and the thermocouple temperature is determined based on the collection test command. When the collection test command is different, the thermocouple temperature will also be different.

[0137] It should be noted that the acquisition of engine speed and temperature can be achieved based on different acquisition test commands. For example, the first acquisition test command can be used to acquire the frequency of the pulse width modulation generator to acquire the engine speed, and the second acquisition test command can be used to acquire the temperature of the thermocouple. Alternatively, the same acquisition test command can be used to acquire both engine speed and temperature simultaneously. That is, when an acquisition test command is received, it is used to acquire both engine speed and temperature.

[0138] In addition, the test device for the engine control system disclosed in this embodiment may also include: a power indicator light, which is used to indicate whether the power switch is turned on. When the power switch is turned on, the power supply powers each module in the test device.

[0139] In addition to the power supply and power indicator light, the power module also includes a power switch and a fourth detection structure. The fourth detection structure is an ammeter and / or voltmeter, or simply an ammeter and voltmeter, used to detect the voltage of the power supply and the total current in the circuit when the power switch is turned on and the power supply is connected to each module of the test device.

[0140] Specifically, the structural schematic diagram of the test device for the engine control system disclosed in this embodiment is as follows: Figure 6 As shown, it includes: a control module 61, a fixing structure 62 for fixing the engine control system under test, a power supply module, an oil pump test module, a hot spark head test module, a starter test module, and a data acquisition test module.

[0141] The power module includes: a power supply 631, a power switch 632, a power indicator light 633, and a fourth detection structure 634.

[0142] The oil pump test module includes: an oil pump body 641, an oil valve 642, a flow regulating valve 643, a first detection structure 644, an oil reservoir 645, an oil pump indicator light 646, and an oil valve indicator light 647. The first detection structure 644 includes an ammeter and / or a voltmeter 6441, a turbine flow meter 6442, and an oil pressure gauge 6443. There can be two oil valves, and there are also two corresponding oil valve indicator lights.

[0143] The hot head test module includes: a low-power sliding rheostat 651, a second detection structure 652, and a low-power sliding rheostat indicator light 653. The low-power sliding rheostat indicator light is used to indicate whether the low-power sliding rheostat is working. The low-power sliding rheostat indicator light is the same as the first control switch indicator light.

[0144] The starter test module includes: a high-power sliding rheostat 661, a brushless motor 662, a third detection structure 663, and a high-power sliding rheostat indicator light 664. The high-power sliding rheostat indicator light is used to indicate whether the high-power sliding rheostat is working. The high-power sliding rheostat indicator light is the same as the second control switch indicator light.

[0145] The data acquisition and testing module includes a pulse width modulation generator 671 and a thermocouple 672.

[0146] The engine control system testing device disclosed in this embodiment includes: an oil pump testing module, a hot spark plug testing module, a starter motor testing module, a data acquisition testing module, and a power supply module. The data acquisition testing module includes: a pulse width modulation generator and a thermocouple. The pulse width modulation generator is used to acquire and test the engine speed in the engine control system, and the thermocouple is used to acquire and test the temperature in the engine control system.

[0147] Furthermore, the test apparatus for the engine control system disclosed in this embodiment may further include:

[0148] The test bench includes an inclined surface and a horizontal surface.

[0149] The horizontal plane is used to support the test bench; the oil pump test module, the hot spot test module, the starter test module, the data acquisition test module, and the power supply module are set on the inclined surface of the test bench.

[0150] The test bench has a 45-degree angle between its inclined surface and the horizontal plane. The test bench can be constructed from 2mm thick steel plates for stability and reliability. Operable switches, display devices, and the engine control system are placed on the inclined surface. Wiring is routed along the back of the inclined surface to maintain a neat and aesthetically pleasing appearance. The oil pump circulation system is placed on the flat surface.

[0151] Then Figure 6 When the structure is placed on the test bench, its schematic diagram is as follows: Figure 7 and Figure 8 As shown, it includes:

[0152] The mounting structure 62 is used to fix the engine control system under test, and the power supply module, oil pump test module, hot burner test module, starter test module, data acquisition test module and test bench 68 are included.

[0153] The power module includes: a power switch 632, a power indicator light 633, and a fourth detection structure 634;

[0154] The oil pump test module includes: an oil pump body 641, an oil valve 642, a flow regulating valve 643, a first detection structure 644, an oil reservoir 645, an oil pump indicator light 646, and an oil valve indicator light 647. The first detection structure 644 includes an ammeter and / or a voltmeter 6441, a turbine flow meter 6442, and an oil pressure gauge 6443. There can be two oil valves, and there are also two corresponding oil valve indicator lights.

[0155] The hot head test module includes: a low-power sliding rheostat 651, a second detection structure 652, and a low-power sliding rheostat indicator light 653. The low-power sliding rheostat indicator light is used to indicate whether the low-power sliding rheostat is working. The low-power sliding rheostat indicator light is the same as the first control switch indicator light.

[0156] The starter test module includes: a high-power sliding rheostat 661, a brushless motor 662, a third detection structure 663, and a high-power sliding rheostat indicator light 664. The high-power sliding rheostat indicator light is used to indicate whether the high-power sliding rheostat is working. The high-power sliding rheostat indicator light is the same as the second control switch indicator light.

[0157] The data acquisition and testing module includes a pulse width modulation generator 671 and a thermocouple 672.

[0158] in, Figure 7 Numbers 7, 14, 18, and 21 in the diagram are all splitters.

[0159] The engine control system testing device disclosed in this embodiment sets each functional module of the testing device on an inclined test bench, which facilitates observation and operation by the operator.

[0160] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0161] Those skilled in the art will further recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0162] The steps of the methods or algorithms described in conjunction with the embodiments disclosed herein can be implemented directly by hardware, a software module executed by a processor, or a combination of both. The software module can be located in random access memory (RAM), main memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art.

[0163] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An engine control system testing device characterized by comprising: The oil pump test module is used for opening the oil pump based on the oil pump test instruction sent by the engine control system, and performing oil pump control test based on a first detection value of an oil pump test circuit of the oil pump test module. The hot fire head test module is used for adjusting the resistance value of the low-power sliding rheostat in the hot fire head test module to match the hot fire head resistance value of the target engine based on the hot fire head test instruction sent by the engine control system, and performing hot fire head control test based on a second detection value of a hot fire head test circuit of the hot fire head test module. The starter test module is used for adjusting the resistance value of the high-power sliding rheostat in the starter test module to simulate the starter load characteristic based on the starter test instruction sent by the engine control system, and performing starter control test based on a third detection value in a starter test circuit of the starter test module. The acquisition test module is used for adjusting the frequency of the pulse width modulation generator based on the acquisition test instruction sent by the engine control system, and performing acquisition control test based on a fourth detection value in an acquisition test circuit of the acquisition test module. The power module is used for providing power supply for the oil pump test module, the hot fire head test module, the starter test module and the acquisition test module. The control module is used for determining whether the first detection value meets the test standard of the oil pump test instruction, and / or determining whether the second detection value meets the test standard of the hot fire head test instruction, and / or determining whether the third detection value meets the test standard of the starter test instruction, and / or determining whether the fourth detection value meets the test standard of the acquisition test instruction. The test bench has an inclined surface and a horizontal surface, the inclined surface is at an angle of 45° with the horizontal surface, the horizontal surface is used for supporting the test bench, and the oil pump body of the oil pump test module and the oil can are arranged on the horizontal surface, and the hot fire head test module, the starter test module, the acquisition test module and the power module are arranged on the inclined surface. The fixing structure is used for fixing the engine control system to be tested, and the engine control system to be tested fixed on the fixing structure is connected with the control module, the oil pump test module, the hot fire head test module, the starter test module and the acquisition test module, so that the first control signal, the second control signal, the third control signal or the fourth control signal output by the control module can be obtained, and the oil pump test module is controlled based on the first control signal to perform oil pump test on the engine control system to be tested, the hot fire head test module is controlled based on the second control signal to perform hot fire head test on the engine control system to be tested, the starter test module is controlled based on the third control signal to perform starter test on the engine control system to be tested, and the acquisition test module is controlled based on the fourth control signal to perform acquisition test on the engine control system to be tested.

2. The apparatus of claim 1, wherein, The oil pump test module comprises: The oil pump body is used for being opened based on the oil pump test instruction.

3. The apparatus of claim 1, wherein, The oil valve connected with the oil pump body is used for adjusting the valve opening degree of the oil valve based on the oil pump test instruction. The flow regulating valve is used for adjusting the turbine flow. ​ ​ The first detection structure is configured to collect a first detection value in an oil pump test loop of the oil pump test module, and the first detection value at least includes a first current value, a first voltage value, a flow value, or an oil pressure value.

4. The apparatus of claim 3, wherein, The oil pump test module further includes: An oil pump indicator connected to the oil pump body, configured to indicate whether the oil pump body is open; An oil valve indicator connected to the oil valve, configured to indicate whether the oil valve is open.

5. The apparatus of claim 1, wherein, The hot fire head test module includes: A first control switch configured to be turned on based on the hot fire head test instruction; A low-power slide rheostat configured to adjust a resistance value of the low-power slide rheostat to match a hot fire head in the engine based on the hot fire head test instruction; A second detection structure configured to detect a second detection value in a hot fire head test loop of the hot fire head test module, and the second detection value at least includes a second current value and a second voltage value.

6. The apparatus of claim 5, wherein, The hot fire head test module further includes: A first control switch indicator configured to indicate whether the first control switch is turned on.

7. The apparatus of claim 1, wherein, The starter test module includes: A second control switch configured to be turned on based on the starter test instruction; A high-power slide rheostat configured to adjust a resistance value of the high-power slide rheostat to match a starter in the engine based on the starter test instruction; A brushless motor configured to control the brushless motor to rotate when it is determined to test the brushless motor based on the starter test instruction; A third detection structure configured to detect a third detection value in a starter test loop of the starter test module, and the third detection value at least includes a third current value and a third voltage value.

8. The apparatus of claim 2, wherein, The collection test module includes: A pulse width modulation generator connected to the fixed structure, configured to adjust a frequency of the pulse width modulation generator based on the collection test instruction when it is determined to collect a rotation speed of the to-be-tested engine control system based on the collection test instruction; A thermocouple connected to the fixed structure, configured to collect a temperature of the to-be-tested engine control system when the collection test instruction is obtained.

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