CN115949501A - GDI assembly test system - Google Patents
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- CN115949501A CN115949501A CN202211526946.2A CN202211526946A CN115949501A CN 115949501 A CN115949501 A CN 115949501A CN 202211526946 A CN202211526946 A CN 202211526946A CN 115949501 A CN115949501 A CN 115949501A
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- 238000012360 testing method Methods 0.000 title claims abstract description 137
- 238000001914 filtration Methods 0.000 claims abstract description 25
- 230000001050 lubricating effect Effects 0.000 claims abstract description 10
- 238000012545 processing Methods 0.000 claims abstract description 4
- 239000003921 oil Substances 0.000 claims description 61
- 239000007788 liquid Substances 0.000 claims description 29
- 239000010687 lubricating oil Substances 0.000 claims description 28
- 230000001276 controlling effect Effects 0.000 claims description 26
- 239000012535 impurity Substances 0.000 claims description 13
- 238000005461 lubrication Methods 0.000 claims description 13
- 230000000712 assembly Effects 0.000 claims description 8
- 238000000429 assembly Methods 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 230000003139 buffering effect Effects 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 3
- 239000003595 mist Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 9
- 230000002159 abnormal effect Effects 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 238000009661 fatigue test Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000005622 photoelectricity Effects 0.000 description 1
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- 238000011897 real-time detection Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The invention discloses a GDI assembly test system, which relates to the technical field of GDI assembly test and comprises a low-pressure oil supply module, a test medium output module and a GDI assembly output module, wherein the low-pressure oil supply module is used for pressurizing the test medium and outputting the pressurized test medium to the GDI assembly; the high-pressure adjusting module is used for adjusting the test pressure of the GDI assembly; the cam driving module is used for driving the GDI oil pump to operate; the lubricating supply module is used for pressurizing and outputting a lubricating medium to the cam driving module; the temperature control module is used for controlling the temperature of the test medium; the circulating filter module is used for filtering the test medium; the safety protection module is used for detecting and processing the GDI assembly test environment; and the central control module is used for acquiring the test parameters, controlling the operation of each module and displaying the test result of the GDI assembly. The invention can realize that each part of the GDI assembly is tested in the same system at the same time, and can drive 2 GDI assembly products to test, thereby improving the production efficiency.
Description
Technical Field
The invention relates to the technical field of GDI assembly testing, in particular to a GDI assembly testing system.
Background
The GDI assembly service life test bench can be used for carrying out service life fatigue test on the automobile GDI assembly. Through the life fatigue test, the GDI assembly can simulate the actual working condition to run for a long time, various data of the GDI assembly after the GDI assembly runs for a long time are detected, and data support is provided for research and development of new products. By simulating the actual working condition conditions of the workpiece and testing the performance data of the workpiece, the method is more and more widely tried and applied in the fields of nuclear industry, aerospace, deep diving equipment, automobile testing, new materials and the like, and has good prospects.
The development and the start of automobile GDI test systems are earlier abroad, but the GDI oil pumps are tested independently or other parts (such as GDI oil injectors) in GDI assemblies are tested, and only one camshaft with one GDI product can be tested. The automobile GDI test system in China mainly depends on import, only a small amount of manual operation equipment is developed, the test is limited to be carried out on a certain part in a GDI assembly independently, and only one camshaft can carry out GDI product test. The current test systems have the defects of small universality, large occupied area, low utilization rate, low control precision, high labor cost and low manual operation efficiency of a test board.
For the current market, the test board is increased in universality, occupied area is reduced, utilization rate is improved, control precision is improved, labor cost is reduced, working efficiency is improved, and the test board is favorable for enhancing the competitiveness of China in the field of automobile industry research and development. Based on the above circumstances, the research subject of the project researches and develops the McGerstat fuel injector and the assembly life fatigue test system.
Therefore, how to overcome the technical defect that in the prior art, an automobile GDI test system only supports the test of a GDI oil pump or other parts (such as a GDI oil injector) in a GDI assembly and can only test one GDI product is a problem that needs to be solved by those skilled in the art.
Disclosure of Invention
In view of this, the present invention provides a GDI assembly testing system.
In order to achieve the above purpose, the invention provides the following technical scheme:
a GDI assembly test system comprises a central control module, and a low-pressure oil supply module, a high-pressure adjusting module, a cam driving module, a lubrication supply module, a temperature control module, a circulating filter module and a safety protection module which are connected with the central control module;
the low-pressure oil supply module is used for pressurizing and outputting a test medium to the GDI assembly;
the high-pressure adjusting module is used for adjusting the test pressure of the GDI assembly;
the cam driving module is used for driving the GDI oil pump to operate and testing the GDI assembly;
the lubrication supply module is used for pressurizing and outputting a lubricating medium to the cam driving module;
the temperature control module is used for exchanging heat for the test medium through the temperature control medium to realize temperature control for the test medium;
the circulating filter module is used for filtering the test medium;
the safety protection module is used for detecting and processing the GDI assembly test environment;
the central control module is used for obtaining test parameters, controlling each module to operate according to the test parameters, and displaying a test result of the GDI assembly.
Optionally, the low-pressure oil supply module includes a medium oil tank, a first electric pump, a first filter, a first ball valve, a first back pressure valve, an electromagnetic valve, a liquid level sensor, and a first pressure sensor;
the medium oil tank is used for storing and providing test media; the first electric pump is used for outputting the test medium in a pressurization mode; the first filter is used for filtering impurities in the loop; the first backpressure valve is used for adjusting the pressure of a test medium; the first ball valve is used for opening and closing the oil suction loop; the electromagnetic valve is used for controlling the opening and closing of the loop; the liquid level sensor is connected with the medium oil tank and used for detecting the liquid level height in the medium oil tank; the first pressure sensor is disposed in the circuit for detecting a pressure in the circuit.
Optionally, the high-pressure regulating module includes an electro proportional valve, a second backpressure valve, an accumulator, a first pneumatic control valve, a stop valve, and a second pressure sensor;
the electric proportional valve is used for adjusting the output driving air pressure so as to drive the second backpressure valve; the accumulator is used for buffering the pressure fluctuation of the system; the first pneumatic control valve is used for controlling the opening and closing of the high-pressure loop; the stop valve is used for controlling the opening and closing of the loop; the second pressure sensor is used for detecting and feeding back system pressure.
Optionally, the cam driving module comprises a variable frequency motor, a cam box assembly, a hall sensor and an installation tool;
the variable frequency motor is used for providing power for the operation of the GDI oil pump; the cam box assembly is used for transmitting the kinetic energy of the variable frequency motor to the GDI oil pump so as to lead the GDI oil pump to be subjected to pressurization test; the Hall sensor is used for detecting and feeding back the rotating speed of a cam shaft in the cam box assembly; the mounting tool is used for mounting and fixing the GDI fuel injector.
Optionally, the cam driving module is connected to two sets of GDI assemblies, that is, one cam box assembly is provided with two GDI oil pumps, and one installation tool is provided with two sets of GDI oil injectors.
Optionally, the lubrication supply module includes a lubrication oil tank, a second electric pump, a second filter, a second ball valve, a third back pressure valve, a second pneumatic control valve, a liquid level switch, and a third pressure sensor;
the lubricating oil tank is used for storing and providing lubricating oil required by the cam driving module in operation as a lubricating medium; the second electric pump is used for pressurizing and injecting lubricating oil in the lubricating oil tank into the cam driving module; the second filter is used for filtering impurities in the loop; the second ball valve is used for controlling the opening and closing of the loop; the third backpressure valve is used for regulating the pressure of the lubricating oil; the second pneumatic control valve is used for controlling the opening and closing of the lubricating oil loop; the liquid level switch is used for detecting the high and low levels of the liquid level in the lubricating oil tank; the third pressure sensor is used for detecting the lubricating oil output pressure.
Optionally, the temperature control module includes a mold temperature controller, a third filter, a third ball valve, a third pneumatic control valve, a heat exchanger, a throttle valve, a temperature sensor, and a fourth pressure sensor;
the die temperature machine is used for providing high and low temperature circulating water as a temperature control medium; the third filter is used for filtering impurities in the loop; the third ball valve is used for controlling the opening and closing of the loop; the third pneumatic control valve is used for controlling the opening and closing of the loop; the heat exchanger is used for heating or cooling a test medium; the throttle valve is used for adjusting the flow rate of circulating water; the temperature sensor is used for detecting the temperature in the loop; the fourth pressure sensor is used for detecting the pressure of the circuit.
Optionally, the circulating and filtering module includes a circulating pump, a fourth filter, a fourth ball valve, and a fifth pressure sensor;
the circulating pump is used for circulating the medium in the medium oil tank to pass through the fourth filter for filtering; the fourth filter is used for filtering impurities in the loop; the fourth ball valve is used for controlling the opening and closing of a loop; the fifth pressure sensor is used for detecting the circuit pressure.
Optionally, the safety protection module comprises an explosion-proof photoelectric liquid level switch, a combustible gas sensor, an explosion-proof proximity switch, an explosion-proof pressure sensor, an explosion-proof temperature sensor and a safety valve;
the explosion-proof photoelectric liquid level switch is used for detecting whether a test medium is leaked in a liquid state; the combustible gas sensor is used for detecting whether a test medium leaks in a gaseous state or in a mist state; the explosion-proof proximity switch is used for detecting whether the test cavity door is closed or not; the explosion-proof pressure sensor is used for detecting the pressure of each loop and feeding back the pressure in real time; the explosion-proof temperature sensor is used for detecting the temperature of the loop and feeding back the temperature in real time; the safety valve is used to prevent the system from being over-pressurized.
Optionally, the central control module includes an electrical component, an explosion-proof box, and operating software;
the electrical element is used for collecting detection data and test data and sending out an execution instruction, and comprises an industrial personal computer, a display, a PLC host, an input/output module, an adjustable power supply, an isolation transmitter and a signal isolator; the explosion-proof box is used for installing devices of each module; the operation software is used for providing an operation interface through the display and displaying the detection data and the test data.
By the technical scheme, the GDI assembly test system provided by the invention has the following beneficial effects compared with the prior art:
(1) The invention realizes the full-automatic control of pressure, temperature, rotating speed and the like by the PLC program, automatically carries out and finishes the test process after the test data is set by the operation software, can continuously run without manual real-time observation, improves the accuracy of data measurement, reduces the labor cost and improves the production efficiency.
(2) The invention realizes that all parts (including the GDI oil pump and the GDI oil injector) of the GDI assembly are tested simultaneously in the same system (one part can be tested independently), the test of the GDI assembly is closer to the reality, and the test data is more accurate and reliable.
(3) The invention realizes the test by using 1 camshaft to drive 2 GDI assembly products, and further improves the production efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic diagram of the overall structure of the system of the present invention;
FIG. 2 is a home interface diagram of the operating software of the present invention;
FIG. 3 is a parameter configuration interface diagram of the operating software of the present invention;
FIG. 4 is a test interface diagram of the operating software of the present invention;
FIG. 5 is a historical data interface diagram of the operating software of the present invention;
FIG. 6 is an alarm recording interface diagram of the operating software of the present invention;
FIG. 7 is a schematic diagram of the operation of the system of the present invention;
FIG. 8 is a schematic view of the low pressure fuel supply module of the present invention;
FIG. 9 is a schematic view of the high pressure regulation module and cam drive module of the present invention;
FIG. 10 is a schematic diagram of the lubrication delivery module and temperature control module of the present invention;
FIG. 11 is a schematic structural view of a loop filter module according to the present invention;
fig. 12 is a schematic structural diagram of the safety protection module of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention discloses a GDI assembly testing system, which comprises a central control module, and eight modules, namely a low-pressure oil supply module, a high-pressure adjusting module, a cam driving module, a lubricating supply module, a temperature control module, a circulating filtering module and a safety protection module, which are connected with the central control module, wherein the eight modules are shown in figure 1.
1. Low-pressure oil supply module
The low pressure oil supply module comprises a medium oil tank 65, a first electric pump 2, a first filter 1.1/6.1, a first ball valve 12.1, a first back pressure valve 5, an electromagnetic valve 7, a liquid level sensor 8, a first pressure sensor 29.1 and the like, see fig. 8. The medium oil tank 65 is used for storing and supplying test media; the first electric pump 2 is used for outputting a test medium in a pressurization mode; the first filter 1.1/6.1 is used for filtering impurities in the loop; the first backpressure valve 5 is used for adjusting the pressure of a test medium; the first ball valve 12.1 is used for opening and closing an oil suction loop; the electromagnetic valve 7 is used for controlling the opening and closing of a loop; the liquid level sensor 8 is connected with the medium oil tank and used for detecting the liquid level height in the medium oil tank; said first pressure sensor 29.1 is arranged in the circuit for detecting the pressure in the circuit. And the low-pressure oil supply module is used for pressurizing the test medium and outputting the pressurized test medium to the GDI assembly for GDI assembly test.
2. High-pressure regulating module
The high-pressure regulating module comprises electro-proportional valves 33.1/33.2/33.3/33.4/33.5/33.6, second backpressure valves 31.1A/31.2A/31.3A31.4A/31.5A/31.6A, accumulators 58.1/58.2/58.3/58.4/58.5/58.6/58.7A/58.8A/58.9A/58.10A/58.11A/58.12A, first air control valves 30.1/30.2/30.3/30.4/30.5/30.6, stop valves 46.1/46.2/46.3/46.4/46.5/46.6, second pressure sensors 27.1A/27.2A/27.3A/27.4A/27.5A/27.6A and the like, wherein the second backpressure valves can be selected from an air control valve 9, and the backpressure valves can be selected from a pneumatic control valves. The electro-proportional valve 33.1/33.2/33.3/33.4/33.5/33.6 is used for adjusting the output driving air pressure so as to drive the second backpressure valve 31.1A/31.2A/31.3A31.4A/31.5A/31.6A; the accumulators 58.1/58.2/58.3/58.4/58.5/58.6/58.7A/58.8A/58.9A/58.10A/58.11A/58.12A are used for buffering the pressure fluctuation of the system; the first pneumatic control valve 30.1/30.2/30.3/30.4/30.5/30.6 is used for controlling the opening and closing of the high-pressure loop; the stop valve 46.1/46.2/46.3/46.4/46.5/46.6 is used for opening and closing a control circuit; the second pressure sensor 27.1A/27.2A/27.3A/27.4A/27.5A/27.6A is used for detecting and feeding back the system pressure. The high-pressure adjusting module is used for adjusting the pressure of the GDI oil pump, so that the testing pressure of the GDI assembly reaches the set pressure value, and the high-pressure adjusting module simultaneously adjusts the pressure of the two sets of GDI assemblies.
3. Cam drive module
The cam driving module comprises a variable frequency motor 68.1/68.2/68.3, a cam box assembly (comprising a cam shaft) 69.1/69.2/69.3, a Hall sensor 70.1/70.2/70.3, a mounting tool 71.1/71.2/71.3 and the like, and refer to FIG. 9. The variable frequency motor 68.1/68.2/68.3 is used for providing power for the operation of the GDI oil pump; the cam box assembly 69.1/69.2/69.3 is used for transferring the kinetic energy of the variable frequency motor to the GDI oil pump so as to lead the GDI oil pump to be subjected to pressurization test; the Hall sensor 70.1/70.2/70.3 is used for detecting and feeding back the rotating speed of a cam shaft in the cam box assembly 69.1/69.2/69.3; the mounting tool 71.1/71.2/71.3 is used for mounting and fixing other parts of a GDI assembly such as a GDI fuel injector. The cam driving module is used for driving the GDI oil pump to operate and testing the GDI assembly.
The cam driving module is connected with the two sets of GDI assemblies, namely, one cam box assembly is provided with two GDI oil pumps, and one installation tool is provided with other parts of the two sets of GDI assemblies.
4. Lubrication supply module
The lubrication supply module comprises a lubricating oil tank 66, a second electric pump 16, a second filter 42/14, a second ball valve 24.2, a third back pressure valve 17, a second pneumatic control valve 25.1/25.2/25.3/25.4/25.5/25.6, a liquid level switch 20, a third pressure sensor 19, etc., see fig. 10. The lubricating oil tank 66 is used for storing and providing lubricating oil required by the cam driving module in operation as a lubricating medium; the second electric pump 16 is used for pressurizing and injecting the lubricating oil in the lubricating oil tank into the cam driving module; the second filter 42/14 is used for filtering impurities in the circuit; the second ball valve 24.2 is used for controlling the opening and closing of a loop; the third back pressure valve 17 is used to regulate the lubricating oil pressure; the second pneumatic control valve 25.1/25.2/25.3/25.4/25.5/25.6 is used for controlling the opening and closing of the lubricating oil loop; the liquid level switch 20 is used for detecting the high and low level of the liquid level in the lubricating oil tank; the third pressure sensor 19 is used to detect the lubricating oil output pressure. And the lubrication supply module is used for pressurizing and outputting lubricating oil to the cam driving module for lubricating the cam driving module.
5. Temperature control module
The temperature control module comprises a mould temperature controller 59A, a third filter 1.3, a third ball valve 12.3/12.4, a third pneumatic control valve 49.1/49.2A/49.3A/49.4A/49.5A/49.6A/49.7A, a heat exchanger 28/35/58, a throttle valve 50.1/50.2/50.3, a temperature sensor 10/22/48.1/48.2/48.3A, a fourth pressure sensor 29.3 and the like, and the reference is made to FIG. 10. The mold temperature controller 59A is used for providing circulating water with high and low temperatures as a temperature control medium; the third filter 1.3 is used for filtering impurities in the loop; the third ball valve 12.3/12.4 is used for controlling the opening and closing of a loop; the third pneumatic control valve 49.1/49.2A/49.3A/49.4A/49.5A/49.6A/49.7A is used for controlling the opening and closing of a loop; the heat exchanger 28/35/58 is used for heating or cooling the test medium; the throttle valve 50.1/50.2/50.3 is used for adjusting the flow rate of circulating water; the temperature sensor 10/22/48.1/48.2/48.3A is used for detecting the temperature in the loop; the fourth pressure sensor 29.3 is used to detect the pressure in the circuit. The temperature control module is used for exchanging heat for the testing medium through the temperature control medium, so that the temperature of the testing medium is controlled to reach the set testing temperature.
6. Circulating filter module
The recirculation filter module comprises a recirculation pump 26, a fourth filter 6.2, a fourth ball valve 13.1/13.2/13.3, a fifth pressure sensor 29.2, etc., see fig. 11. The circulating pump 26 is used for circulating the medium in the medium oil tank 65 to be filtered through the fourth filter 6.2; the fourth filter 6.2 is used for filtering impurities in the loop; the fourth ball valve 13.1/13.2/13.3 is used for controlling the opening and closing of a loop; the fifth pressure sensor 29.2 serves to detect the circuit pressure. The circulating filter module is used for filtering the test medium, so that the influence of impurities in the system on the operation function and the service life of the equipment is avoided.
7. Safety protection module
The safety protection module comprises an explosion-proof photoelectric liquid level switch 62.1/62.2/62.3/62.4, a combustible gas sensor 63.1/63.2/63.3/63.4, an explosion-proof proximity switch 64.1/64.2/64.3, an explosion-proof pressure sensor 51/29.1/27.1A/27.2A/27.3A/27.4A/27.5A/27.6A, an explosion-proof temperature sensor 10/22/48.1/48.2/48.3A, a safety valve 37 and the like, and the safety protection module is shown in figure 12. The explosion-proof photoelectric liquid level switch 62.1/62.2/62.3/62.4 is used for detecting whether a test medium leaks in a liquid state; the combustible gas sensor 63.1/63.2/63.3/63.4 is used for detecting whether a test medium leaks in a gaseous state or in a mist state; the explosion-proof proximity switch 64.1/64.2/64.3 is used for detecting whether the test cavity door is closed or not; the explosion-proof pressure sensor 51/29.1/27.1A/27.2A/27.3A/27.4A/27.5A/27.6A is used for detecting the pressure of each loop and feeding back the pressure in real time; the explosion-proof temperature sensor 10/22/48.1/48.2/48.3A is used for detecting the temperature of the loop and feeding back the temperature in real time; the relief valve 37 is used to prevent system overpressure. The safety protection module is used for detecting and processing the GDI assembly test environment in an abnormal mode, wherein the abnormal mode comprises alarm feedback, shutdown and the like.
8. Central control module
The central control module comprises electrical components, an explosion-proof box, operating software and the like. The electrical element is used for collecting detection data and test data and sending out an execution instruction, and comprises an industrial personal computer, a display, a PLC host, an input/output module, an adjustable power supply, an isolation transmitter and a signal isolator; the explosion-proof box is used for installing devices of all modules; the operation software is used for providing an operation interface through the display and displaying the detection data and the test data. The central control module is used for obtaining test parameters, controlling each module to operate according to the test parameters, completing the test of the GDI assembly and displaying the test result of the GDI assembly.
The working principle of the system of the invention is as follows, see fig. 7:
firstly, a GDI assembly test system is installed and connected with a pipeline, and a power supply and an air source are connected. According to the test requirements (including the test of the GDI assembly, or only a certain part of the GDI assembly may be tested), various test parameters (including the test pressure, the test rotation speed, the test temperature, etc.) are input through the operation software on the display in the central control module, see fig. 2 and 3. After the test parameters are set, the equipment is started, and the central control module sends out an execution instruction to the low-pressure oil supply module, the high-pressure adjusting module, the cam driving module, the lubricating supply module, the temperature control module, the circulating filtration module, the safety protection module and the like according to the test parameters.
Wherein the modules have the following functions:
function one: low pressure oil supply
The test medium in the medium oil tank is pressurized and output to the GDI assembly through the first electric pump, and the output pressure can be adjusted through the first back pressure valve.
And a second function: high pressure regulation
According to the test pressure set on the operation software, the electro proportional valve drives the second backpressure valve to automatically adjust, the high-pressure test medium output by the GDI oil pump in a pressurization mode is automatically adjusted to the set test pressure value, the high-pressure test medium is supplied to the GDI assembly for testing, and the pressure of the two sets of GDI assemblies is adjusted at the same time.
And function III: cam drive function
Two GDI oil pumps are simultaneously installed and rotated on the cam box and driven by one cam shaft. And other parts of the two sets of GDI assemblies are arranged on the installation tool. According to the test rotating speed set on the operation software, the variable frequency motor drives the cam shaft to drive the GDI oil pump installed on the cam box to operate, so that power for boosting the GDI oil pump is provided.
And the function is four: lubrication supply function
And pressurizing and inputting the lubricating oil in the lubricating oil tank into the cam box through the second electric pump according to the test rotating speed set on the operation software, so as to lubricate the cam driving part.
And a fifth function: temperature control
And according to the temperature set on the operation software, outputting the circulating temperature control medium through automatic adjustment of the mold temperature controller, and carrying out temperature control on the test medium after passing through the heat exchanger.
Function six: circulation filtering function
The test medium in the medium tank is output to the fourth filter and returned to the medium tank by the circulation pump according to the associated operation set on the operation software, thereby circulating and filtering the foreign substances in the test medium.
Function seven: safety protection function
Through explosion-proof pressure sensor, explosion-proof temperature sensor, combustible gas sensor, explosion-proof photoelectricity liquid level switch, explosion-proof proximity switch etc. real-time detection and feedback system's pressure, temperature, combustible gas concentration, liquid level height, contact signal's numerical signal to automatic the handling to the abnormal conditions of making contains and reports to the police and shut down etc. avoids taking place the accident because of faults such as superpressure, overtemperature, leakage appear.
After the test is finished, displaying the current test parameters in real time on a software interface, and automatically storing the parameters, which is shown in FIG. 4; the test data can be automatically recorded, and the historical data can be inquired on a historical data interface, which is shown in figure 5; the alarm recording interface can inquire the equipment abnormal alarm information, see fig. 6.
In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended 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 (10)
1. A GDI assembly test system is characterized by comprising a central control module, and a low-pressure oil supply module, a high-pressure adjusting module, a cam driving module, a lubrication supply module, a temperature control module, a circulating filtering module and a safety protection module which are connected with the central control module;
the low-pressure oil supply module is used for pressurizing and outputting the test medium to the GDI assembly;
the high-pressure adjusting module is used for adjusting the test pressure of the GDI assembly;
the cam driving module is used for driving the GDI oil pump to operate and testing the GDI assembly;
the lubrication supply module is used for pressurizing and outputting a lubricating medium to the cam driving module;
the temperature control module is used for exchanging heat for the test medium through the temperature control medium to realize temperature control for the test medium;
the circulating filter module is used for filtering the test medium;
the safety protection module is used for detecting and processing the GDI assembly test environment;
the central control module is used for obtaining test parameters, controlling each module to operate according to the test parameters, and displaying a test result of the GDI assembly.
2. The GDI assembly testing system of claim 1, wherein the low pressure oil supply module comprises a medium oil tank, a first electric pump, a first filter, a first ball valve, a first back pressure valve, a solenoid valve, a liquid level sensor, a first pressure sensor;
the medium oil tank is used for storing and providing test media; the first electric pump is used for outputting the test medium in a pressurization mode; the first filter is used for filtering impurities in the loop; the first backpressure valve is used for adjusting the pressure of a test medium; the first ball valve is used for opening and closing the oil suction loop; the electromagnetic valve is used for controlling the opening and closing of the loop; the liquid level sensor is connected with the medium oil tank and used for detecting the liquid level height in the medium oil tank; the first pressure sensor is disposed in the circuit for detecting a pressure in the circuit.
3. The GDI assembly testing system of claim 1, wherein the high pressure regulation module includes an electro proportional valve, a second backpressure valve, an accumulator, a first pneumatic valve, a shutoff valve, a second pressure sensor;
the electro proportional valve is used for adjusting the output driving air pressure so as to drive the second backpressure valve; the accumulator is used for buffering pressure fluctuation of the system; the first pneumatic control valve is used for controlling the opening and closing of the high-pressure loop; the stop valve is used for controlling the opening and closing of the loop; the second pressure sensor is used for detecting and feeding back system pressure.
4. The GDI assembly testing system of claim 1, wherein the cam driving module comprises a variable frequency motor, a cam box assembly, a Hall sensor, and an installation tool;
the variable frequency motor is used for providing power for the operation of the GDI oil pump; the cam box assembly is used for transmitting the kinetic energy of the variable frequency motor to the GDI oil pump so as to lead the GDI oil pump to be subjected to pressurization test; the Hall sensor is used for detecting and feeding back the rotating speed of a cam shaft in the cam box assembly; the mounting tool is used for mounting and fixing the GDI oil sprayer.
5. The GDI assembly testing system of claim 4, wherein the cam driving module is connected with two sets of GDI assemblies, that is, one cam box assembly is provided with two GDI oil pumps, and one installation tool is provided with two sets of GDI oil injectors.
6. The GDI assembly testing system of claim 1, wherein the lubrication supply module comprises a lubrication tank, a second electric pump, a second filter, a second ball valve, a third back pressure valve, a second pneumatic control valve, a liquid level switch, a third pressure sensor;
the lubricating oil tank is used for storing and providing lubricating oil required by the cam driving module in operation as a lubricating medium; the second electric pump is used for pressurizing and injecting lubricating oil in the lubricating oil tank into the cam driving module; the second filter is used for filtering impurities in the loop; the second ball valve is used for controlling the opening and closing of the loop; the third backpressure valve is used for regulating the pressure of the lubricating oil; the second pneumatic control valve is used for controlling the opening and closing of the lubricating oil loop; the liquid level switch is used for detecting the high and low levels of the liquid level in the lubricating oil tank; the third pressure sensor is used for detecting the lubricating oil output pressure.
7. The GDI assembly testing system of claim 1, wherein the temperature control module comprises a die temperature controller, a third filter, a third ball valve, a third pneumatic control valve, a heat exchanger, a throttle valve, a temperature sensor, and a fourth pressure sensor;
the die temperature machine is used for providing high and low temperature circulating water as a temperature control medium; the third filter is used for filtering impurities in the loop; the third ball valve is used for controlling the opening and closing of the loop; the third pneumatic control valve is used for controlling the opening and closing of the loop; the heat exchanger is used for heating or cooling the test medium; the throttle valve is used for adjusting the flow rate of circulating water; the temperature sensor is used for detecting the temperature in the loop; the fourth pressure sensor is used for detecting the pressure of the circuit.
8. The GDI assembly testing system of claim 1, wherein the cyclical filtering module comprises a cyclical pump, a fourth filter, a fourth ball valve, a fifth pressure sensor;
the circulating pump is used for circulating the medium in the medium oil tank to pass through the fourth filter for filtering; the fourth filter is used for filtering impurities in the loop; the fourth ball valve is used for controlling the opening and closing of a loop; the fifth pressure sensor is used for detecting the circuit pressure.
9. The GDI assembly test system of claim 1, wherein the safety protection module comprises an explosion-proof photoelectric liquid level switch, a combustible gas sensor, an explosion-proof proximity switch, an explosion-proof pressure sensor, an explosion-proof temperature sensor, a safety valve;
the explosion-proof photoelectric liquid level switch is used for detecting whether a test medium is leaked in a liquid state; the combustible gas sensor is used for detecting whether a test medium leaks in a gaseous state or in a mist state; the explosion-proof proximity switch is used for detecting whether the test cavity door is closed or not; the explosion-proof pressure sensor is used for detecting the pressure of each loop and feeding back the pressure in real time; the explosion-proof temperature sensor is used for detecting the temperature of the loop and feeding back the temperature in real time; the safety valve is used to prevent the system from being over-pressurized.
10. The GDI assembly testing system of claim 1, wherein the central control module includes electrical components, explosion-proof box, operating software;
the electrical element is used for collecting detection data and test data and sending out an execution instruction, and comprises an industrial personal computer, a display, a PLC host, an input/output module, an adjustable power supply, an isolation transmitter and a signal isolator; the explosion-proof box is used for installing devices of each module; the operation software is used for providing an operation interface through the display and displaying the detection data and the test data.
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| CN202211526946.2A CN115949501A (en) | 2022-12-01 | 2022-12-01 | GDI assembly test system |
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| CN115126636A (en) * | 2022-07-12 | 2022-09-30 | 武汉东测科技有限责任公司 | Fuel oil system test bench |
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| US5515712A (en) * | 1992-05-01 | 1996-05-14 | Yunick; Henry | Apparatus and method for testing combustion engines |
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Application publication date: 20230411 |