CN112904137A - Auxiliary device used in ignition system electromagnetic compatibility test process - Google Patents
Auxiliary device used in ignition system electromagnetic compatibility test process Download PDFInfo
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- CN112904137A CN112904137A CN202110268749.4A CN202110268749A CN112904137A CN 112904137 A CN112904137 A CN 112904137A CN 202110268749 A CN202110268749 A CN 202110268749A CN 112904137 A CN112904137 A CN 112904137A
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- 238000012360 testing method Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title abstract description 15
- 238000004088 simulation Methods 0.000 claims abstract description 92
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 238000012544 monitoring process Methods 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 239000003973 paint Substances 0.000 claims description 2
- 238000010998 test method Methods 0.000 claims 8
- 239000007789 gas Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/001—Measuring interference from external sources to, or emission from, the device under test, e.g. EMC, EMI, EMP or ESD testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/005—Testing of electric installations on transport means
- G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
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- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
The application discloses auxiliary device that uses in ignition system electromagnetic compatibility test process includes: the simulation cylinder is arranged on the ground; the air inlet assembly is connected with the simulation air cylinder; the ignition coil is connected with the simulation cylinder; the singlechip is connected with the ignition coil; the exhaust assembly is connected with the simulation cylinder. The air inlet assembly is connected with the simulation cylinder and used for supplying high-pressure gas to the simulation cylinder, the ignition coil is connected with the simulation cylinder, the single chip microcomputer is connected with the ignition coil and used for controlling the ignition coil to ignite, the exhaust assembly is connected with the simulation cylinder and used for discharging redundant high-pressure gas in the simulation cylinder, the single chip microcomputer replaces an ECU (electronic control unit) in an automobile to control the ignition coil to discharge and ignite, and the simulation cylinder simulates the automobile engine to work.
Description
Technical Field
The invention relates to the technical field of automobile ignition systems, in particular to an auxiliary device used in an ignition system electromagnetic compatibility test process.
Background
The electromagnetic compatibility of the whole automobile is influenced by a plurality of modules and devices, and the ignition system generates and releases high voltage of tens of thousands of volts at the time of a spark plug, which most possibly causes the electromagnetic compatibility of the whole automobile to be not satisfactory. When the ignition system is subjected to the electromagnetic compatibility test, the ignition system is controlled by an automobile ECU, and a spark plug is arranged on an engine, so that the test can be carried out only by the cooperation of the engine and the ECU. When the engine works, the engine needs the support of other modules, so that the electromagnetic compatibility test of the ignition system is very difficult.
Therefore, a set of auxiliary devices used in the ignition system electromagnetic compatibility test process needs to be designed, so that the test can be completed without depending on components such as an engine, an ECU (electronic control unit) and the like in the test process, different working conditions of the engine can be simulated, and the test cost is saved.
Disclosure of Invention
It is an object of the present application to overcome the above problems or to at least partially solve or alleviate the above problems.
Therefore, the invention provides an auxiliary device used in the process of testing the electromagnetic compatibility of an ignition system, which comprises:
the simulation cylinder is arranged on the ground and used for simulating the work of an automobile engine;
the air inlet assembly is connected with the simulation cylinder and supplies high-pressure air to the simulation cylinder;
the ignition coil is connected with the simulation cylinder;
the single chip microcomputer is connected with the ignition coil to control the ignition coil to ignite;
and the exhaust assembly is connected with the simulation cylinder and used for exhausting redundant high-pressure gas in the simulation cylinder.
This technical scheme is connected through subassembly and the simulation cylinder that will admit air for the simulation cylinder supplies high-pressure gas, and ignition coil is connected with the simulation cylinder, and the singlechip is connected with ignition coil for control ignition coil ignites, and exhaust subassembly is connected with the simulation cylinder, can be with the unnecessary high-pressure gas discharge in the simulation cylinder. The ignition coil is controlled to discharge and ignite by the singlechip instead of an ECU (electronic control unit) in the automobile, and the simulation cylinder simulates the work of an automobile engine, so that the test can be completed without relying on parts such as the engine, the ECU and the like in the process of testing the electromagnetic compatibility of an ignition system, different working conditions of the engine can be simulated, and the test cost is saved.
In addition, the above technical solution of the present invention may further have the following additional technical features:
in the above technical solution, the simulation cylinder includes a simulation cylinder main body upper portion and a simulation cylinder main body lower portion;
the simulation cylinder main part upper portion with simulation cylinder main part lower part passes through threaded connection to paint sealed glue in order to guarantee the leakproofness in the junction.
In the technical scheme, the upper part of the simulation cylinder main body is provided with an air inlet assembly mounting hole;
the air inlet assembly comprises an air inlet hose and an air inlet high-pressure pipe connected with the lower end of the air hose, and the upper end of the air inlet hose is connected with a high-pressure air bottle and used for injecting high-pressure air into the simulation air cylinder.
In the above technical scheme, the air intake assembly further comprises a manual air intake switch or an electric switch installed in the middle of the air intake hose to control the high-pressure air of the high-pressure air bottle to enter the simulation cylinder, the electric switch is connected with the air pressure sensor, and the electric switch is connected with the single chip microcomputer and is used for realizing automatic pressure control;
the signal output end of the air pressure sensor is connected with the first signal receiving end of the single chip microcomputer, and the first signal output end of the single chip microcomputer is connected with the signal receiving end of the electric switch and used for controlling the electric switch to be turned on or turned off.
In the technical scheme, the lower end of the air inlet high-pressure pipe is connected with the air inlet assembly mounting hole through the air inlet connector.
In the technical scheme, the upper part of the simulation cylinder body is also provided with an ignition coil mounting hole;
the ignition coil comprises a primary coil and a secondary coil which are integrated into a whole, and a spark plug which is installed in the ignition coil installation hole through threads;
the terminal of the primary coil is connected with the single chip microcomputer to control the primary coil to be powered off, and the spark plug is connected with the terminal of the secondary coil in an inserting mode to enable the secondary coil to generate high voltage, so that the spark plug discharges and is used for discharging and igniting.
In the technical scheme, the upper part of the simulation cylinder main body is also provided with an exhaust assembly mounting hole;
the exhaust assembly comprises a vertical high-pressure pipe and a transverse high-pressure pipe, the lower end of the vertical high-pressure pipe is connected with the exhaust assembly mounting hole, the upper end of the vertical high-pressure pipe is provided with a pressure gauge for monitoring the pressure value of the simulation cylinder, the middle part of the vertical high-pressure pipe is connected with one end of the transverse high-pressure pipe, the transverse high-pressure pipe is provided with a manual switch ' or an electric switch ', the electric switch ' is connected with an air pressure sensor ', and the electric switch ' is connected with the single chip microcomputer and used for realizing automatic pressure control;
the signal output end of the air pressure sensor ' is connected with the second signal receiving end of the single-chip microcomputer, and the second signal output end of the single-chip microcomputer is connected with the signal receiving end of the electric switch ' and used for controlling the electric switch ' to be turned on or turned off.
In the technical scheme, the lower end of the vertical high-pressure pipe is connected with the exhaust assembly mounting hole through an exhaust connector;
the middle part of the vertical high-pressure pipe is connected with one end of the transverse high-pressure pipe through a tee joint.
In the technical scheme, the simulation cylinder further comprises a grounding binding post which is arranged on the side part of the lower part of the simulation cylinder main body and is used for being connected to the negative pole of the secondary coil and the laboratory ground through a low-resistance wire.
In the above technical scheme, the device further comprises a storage battery, wherein the storage battery is connected with the single chip microcomputer and used for supplying power to the single chip microcomputer.
The above and other objects, advantages and features of the present application will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the present application will be described in detail hereinafter by way of illustration and not limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a schematic diagram of an auxiliary device used in an ignition system electromagnetic compatibility test according to one embodiment of the present application;
FIG. 2 is a schematic diagram of the connections of the single-chip microcomputer, the battery and the ignition coil of the auxiliary device used in the process of testing the electromagnetic compatibility of the ignition system shown in FIG. 1;
fig. 3 is a schematic structural diagram of an auxiliary device mounting electric switch and electric switch' used in the process of testing the electromagnetic compatibility of the ignition system shown in fig. 1.
The labels in the figure are:
1-simulating a cylinder; 11-simulating the cylinder body upper part; 12-simulating a cylinder body lower part; 13-a ground terminal;
2-an air intake assembly; 21-an air inlet hose; 22-a high pressure pipe for air intake; 23-manual air inlet switch; 24-an inlet connection; 25-an electric switch; 26-three-way head;
3-an ignition coil; 31-a primary coil; 32-a secondary coil; 33-a spark plug; 34-negative pole of secondary coil; 35-positive pole of secondary coil;
4, a single chip microcomputer;
5-an exhaust assembly; 51-pressure gauge; 52-vertical high pressure pipes; 53-tee; 54-exhaust connector; 55-manual switch'; 56-transverse high pressure tube; 57-electric switch';
6-storage battery.
Detailed Description
The present application will now be described in further detail by way of specific examples with reference to the accompanying drawings. The following examples are intended to illustrate the present application but are not intended to limit the scope of the present application.
FIG. 1 is a schematic diagram of an auxiliary device used in an ignition system electromagnetic compatibility test according to one embodiment of the present application; fig. 2 is a schematic diagram of the connection of the one-chip microcomputer, the storage battery and the ignition coil of the auxiliary device used in the process of testing the electromagnetic compatibility of the ignition system shown in fig. 1. As shown in fig. 1 and 2, the auxiliary devices used in the ignition system electromagnetic compatibility test process may generally include an analog cylinder 1, an intake assembly 2, an ignition coil 3, a single chip microcomputer 4, and an exhaust assembly 5. The simulation cylinder 1 is fixed on a workbench (not shown in the figure) through bolts, and the workbench is formed by fixing a frame body and a panel, or is directly fixed on the ground through bolts and used for simulating the work of an automobile engine. The air inlet assembly 2 is connected with the simulation cylinder 1 and used for supplying high-pressure air to the simulation cylinder 1 so as to realize the work of the simulation cylinder 1. The ignition coil 3 is connected with the simulation cylinder 1 and used for grounding the ignition coil 3. The singlechip 4 is connected with the ignition coil 3 to control the ignition coil 3 to ignite. The exhaust assembly 5 is connected with the simulation cylinder 1, so that redundant high-pressure gas in the simulation cylinder 1 is exhausted, and the safety performance is improved. Through the form that adopts 4 drive IGBTs of singlechip (insulated gate bipolar transistor), so in order to realize reaching ignition coil 3 power demand, do not need ECU (electronic control unit) when 4 control ignition coil 3 tests of singlechip, the moment of ignition control is more accurate. The simulation cylinder 1 is adopted to realize the simulation of the air pressure in the cylinder, and meanwhile, the device has the advantages of reasonable structure, simple and convenient operation, lower manufacturing cost, convenient maintenance, small volume and stable and reliable performance.
This technical scheme is connected through subassembly 2 that will admit air with simulation cylinder 1 for simulation cylinder 1 supplies high-pressure gas, and ignition coil 3 is connected with simulation cylinder 1, and singlechip 4 is connected with ignition coil 3 for control ignition coil 3 ignites, and exhaust subassembly 5 is connected with simulation cylinder 1, can be with the unnecessary high-pressure gas discharge in the simulation cylinder 1. The ignition coil 3 is controlled to discharge and ignite by the singlechip 4 instead of an ECU in an automobile, and the simulation cylinder 1 simulates the work of an automobile engine, so that the test can be completed without depending on parts such as the engine, the ECU and the like in the process of testing the electromagnetic compatibility of an ignition system, different working conditions of the engine can be simulated, and the test cost is saved.
As shown in fig. 1, in a specific embodiment, optionally, the simulation cylinder 1 may generally include a simulation cylinder body upper part 11 and a simulation cylinder body lower part 12, the simulation cylinder body upper part 11 and the simulation cylinder body lower part 12 are generally connected by a screw thread, so as to facilitate disassembly and maintenance, and a sealant is applied at the joint to ensure the sealing property, so as to ensure that the simulation cylinder 1 does not leak high-pressure gas, and ensure that the simulation cylinder 1 works normally. The simulation cylinder 1 simulates the air pressure of the engine cylinder by filling inert gas nitrogen, and simultaneously displays the real-time air pressure through a pressure gauge 51 connected to the simulation cylinder.
In addition, the simulation cylinder body upper part 11 and the simulation cylinder body lower part 12 can also be integrally formed, so that the processing is convenient, and the simulation cylinder 1 is generally a rectangular body.
Therefore, the simulation cylinder 1 is used for simulating the work of the automobile engine, the test can be completed without depending on the engine in the ignition system electromagnetic compatibility test process, different working conditions of the engine can be simulated, the test cost is saved, and meanwhile, the simulation device has the characteristics of simplicity and convenience in operation, small size, light weight and reasonable structure.
In one particular embodiment, as shown in FIG. 1, the simulated cylinder body upper portion 11 optionally has an intake assembly mounting hole (not labeled) for mounting the intake assembly 2. Specifically, the intake assembly 2 may generally include an intake hose 21, an intake high-pressure pipe 22, and a high-pressure gas cylinder (not shown in the drawings). Wherein, the lower extreme of air inlet hose 21 is pegged graft with the upper end of air inlet high-pressure pipe 22 and compresses tightly through fixed hoop (not marking in the figure) and seals, the dismouting of being convenient for maintenance. Of course, the lower end of the intake hose 21 may be formed with an integral metal joint and have a screw thread for screwing with the upper end of the intake high-pressure pipe 22. The upper end of the air inlet hose 21 is spliced with the air outlet end of the high-pressure gas cylinder and tightly connected in a sealing manner through the fixing hoop, so that the air inlet hose is convenient to disassemble, assemble and maintain, and of course, the upper end of the air inlet hose 21 can be also processed with another integrated metal joint and is provided with threads for being in threaded connection with the air outlet end of the high-pressure gas cylinder. High-pressure gas is injected into the simulation cylinder 1 through the air inlet hose 21, the air inlet high-pressure pipe 22 and the high-pressure gas bottle, so that the simulation cylinder 1 can simulate the work of an automobile engine.
As shown in fig. 1, in a specific embodiment, the air intake assembly 2 may further include a manual air intake switch 23 or an electric switch 25 mounted in the middle of the air intake hose 21 for controlling the high-pressure air in the high-pressure air cylinder to enter the simulation cylinder 1, and the manual air intake switch 23 is used for controlling the high-pressure air in the high-pressure air cylinder to enter the simulation cylinder 1 for operation.
Fig. 3 is a schematic structural diagram of an auxiliary device mounting electric switch and electric switch' used in the process of testing the electromagnetic compatibility of the ignition system shown in fig. 1. As shown in fig. 3, in the present embodiment, optionally, the electric switch 25 is connected to an air pressure sensor (not shown in the figure) through a three-way head 26, and the electric switch 25 is connected to the single chip microcomputer 4 through a line or a signal for implementing automatic pressure control. Specifically, the single chip microcomputer 4 collects the data of the air pressure sensor, judges the data of the sensor, and when the upper and lower limit ranges of the set pressure value are met, the single chip microcomputer 4 performs switching action on the corresponding electric switch 25 to realize automatic pressure control.
In this embodiment, optionally, the signal output end of the air pressure sensor is connected to the first signal receiving end of the single chip microcomputer 4, and the first signal output end of the single chip microcomputer 4 is connected to the signal receiving end of the electric switch 25. The data of the air pressure sensor is acquired through the singlechip 4 to judge the data of the air pressure sensor, and then the electric switch 25 is controlled to be turned on or turned off.
As shown in fig. 1, in the present embodiment, optionally, the lower end of the intake high-pressure pipe 22 is detachably connected to the intake assembly mounting hole through an intake connector 24, so as to facilitate disassembly and maintenance. Specifically, the air inlet connector 24 is an existing connector, the lower end of the air inlet connector 24 is connected with the air inlet assembly mounting hole of the simulation cylinder 1 through threads, sealant is coated at the joint to ensure the sealing performance, and the upper end of the air inlet connector 24 is connected with the lower end of the air inlet high-pressure pipe 22 through threads. The air inlet high-pressure pipe 22 is connected with the simulation cylinder 1 through an air inlet connector 24, so that the air inlet assembly 2 is connected with the simulation cylinder 1 to supply high-pressure air.
In one embodiment, as shown in fig. 1, the dummy cylinder body upper portion 11 may optionally further have an ignition coil mounting hole (not labeled) for mounting the ignition coil 3. The ignition coil 3 may generally include an integrated primary coil 31 and secondary coil 32, and a spark plug 33 screw-mounted to an ignition coil mounting hole. Specifically, the terminal of the primary coil 31 is connected with the single chip microcomputer 4 to control the primary coil 31 to be powered off, and the spark plug 33 is plugged with the terminal of the secondary coil 32 to enable the secondary coil 32 to generate high voltage, so that the spark plug 33 discharges for discharging and igniting.
In one embodiment, as shown in FIG. 1, the dummy cylinder body upper portion 11 may optionally further have an exhaust assembly mounting hole (not labeled) for connection with the exhaust assembly 5. Specifically, exhaust assembly 5 may generally include vertical high pressure tubes 52 and lateral high pressure tubes 56. Wherein, the lower extreme and the exhaust assembly mounting hole of vertical high-pressure pipe 52 are connected through exhaust connector 54, and manometer 51 is installed through the screw thread to the upper end of this vertical high-pressure pipe 52 for the pressure value of monitoring simulation cylinder 1. Further, the middle part of the vertical high-pressure pipe 52 is connected with one end of a transverse high-pressure pipe 56, and the transverse high-pressure pipe 56 is provided with a manual switch 55 or an electric switch 57. The manual switch' 55 controls the high-pressure gas in the simulation cylinder 1 to be discharged out of the simulation cylinder 1, thereby facilitating the operation.
As shown in fig. 3, in this embodiment, optionally, the electric switch ' 57 is connected to the air pressure sensor ' (not shown in the figure) through a three-way joint, and the electric switch ' 57 is connected to the single chip microcomputer 4 through a line or a signal for realizing automatic pressure control. Specifically, the data of the air pressure sensor 'is collected by the single chip microcomputer 4, the data of the sensor is judged, and when the upper and lower limit ranges of the set pressure value are met, the single chip microcomputer 4 performs switching action on the corresponding electric switch' 57 to realize automatic pressure control.
In this embodiment, optionally, the signal output end of the air pressure sensor 'is connected to the second signal receiving end of the single chip microcomputer 4, and the second signal output end of the single chip microcomputer 4 is connected to the signal receiving end of the electric switch' 57. The data of the air pressure sensor 'is obtained by the single chip microcomputer 4 to judge the data of the air pressure sensor', and then the electric switch 57 is controlled to be turned on or turned off.
In the present embodiment, as shown in fig. 1, the lower end of the vertical high-pressure pipe 52 is optionally connected to the exhaust connector 54 by a screw thread, or by a fixing clip for plug-in connection. The middle of the vertical high-pressure pipe 52 is connected with one end of the horizontal high-pressure pipe 56 through a tee 53, the vertical high-pressure pipe 52 is vertically arranged, and the horizontal high-pressure pipe 56 is horizontally arranged to form an exhaust passage.
As shown in fig. 2, the grounding terminal 13 is disposed at a side portion of the dummy cylinder body lower portion 12 for connecting to a negative electrode 34 of the secondary coil 32 through a low-resistance wire to achieve grounding, and an end opposite to the negative electrode 34 is a positive electrode 35 of the secondary coil
As shown in fig. 1, the storage battery 6 is connected to the single chip microcomputer 4 through a line and is used for supplying power to the single chip microcomputer 4.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which this application belongs.
In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.
Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present application, "a plurality" means two or more unless specifically defined otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
The above description is only for the preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. An auxiliary device for use in an ignition system electromagnetic compatibility test, comprising:
the simulation cylinder is arranged on the ground and used for simulating the work of an automobile engine;
the air inlet assembly is connected with the simulation cylinder and supplies high-pressure air to the simulation cylinder;
the ignition coil is connected with the simulation cylinder;
the single chip microcomputer is connected with the ignition coil to control the ignition coil to ignite;
and the exhaust assembly is connected with the simulation cylinder and used for exhausting redundant high-pressure gas in the simulation cylinder.
2. An auxiliary device for use in an ignition system electromagnetic compatibility test procedure according to claim 1, wherein:
the simulation cylinder comprises a simulation cylinder main body upper part and a simulation cylinder main body lower part;
the simulation cylinder main part upper portion with simulation cylinder main part lower part passes through threaded connection to paint sealed glue in order to guarantee the leakproofness in the junction.
3. An auxiliary device for use in an ignition system electromagnetic compatibility test procedure according to claim 2, wherein:
the upper part of the simulation cylinder main body is provided with an air inlet assembly mounting hole;
the air inlet assembly comprises an air inlet hose and an air inlet high-pressure pipe connected with the lower end of the air hose, and the upper end of the air inlet hose is connected with a high-pressure air bottle and used for injecting high-pressure air into the simulation air cylinder.
4. An auxiliary device for use in an ignition system electromagnetic compatibility test procedure according to claim 3, wherein:
the air inlet assembly further comprises a manual air inlet switch or an electric switch which is arranged in the middle of the air inlet hose so as to control high-pressure air of the high-pressure air bottle to enter the simulation air cylinder, the electric switch is connected with the air pressure sensor, and the electric switch is connected with the single chip microcomputer and used for realizing automatic pressure control;
the signal output end of the air pressure sensor is connected with the first signal receiving end of the single chip microcomputer, and the first signal output end of the single chip microcomputer is connected with the signal receiving end of the electric switch and used for controlling the electric switch to be turned on or turned off.
5. An auxiliary device for use in an ignition system electromagnetic compatibility test procedure according to claim 3, wherein:
the lower end of the air inlet high-pressure pipe is connected with the air inlet assembly mounting hole through an air inlet connector.
6. An auxiliary device for use in an ignition system electromagnetic compatibility test procedure according to claim 2, wherein:
the upper part of the simulation cylinder body is also provided with an ignition coil mounting hole;
the ignition coil comprises a primary coil and a secondary coil which are integrated into a whole, and a spark plug which is installed in the ignition coil installation hole through threads;
the terminal of the primary coil is connected with the single chip microcomputer to control the primary coil to be powered off, and the spark plug is connected with the terminal of the secondary coil in an inserting mode to enable the secondary coil to generate high voltage, so that the spark plug discharges and is used for discharging and igniting.
7. An auxiliary device for use in an ignition system electromagnetic compatibility test procedure according to claim 2, wherein:
the upper part of the simulation cylinder main body is also provided with an exhaust assembly mounting hole;
the exhaust assembly comprises a vertical high-pressure pipe and a transverse high-pressure pipe, the lower end of the vertical high-pressure pipe is connected with the exhaust assembly mounting hole, the upper end of the vertical high-pressure pipe is provided with a pressure gauge for monitoring the pressure value of the simulation cylinder, the middle part of the vertical high-pressure pipe is connected with one end of the transverse high-pressure pipe, the transverse high-pressure pipe is provided with a manual switch ' or an electric switch ', the electric switch ' is connected with an air pressure sensor ', and the electric switch ' is connected with the single chip microcomputer and used for realizing automatic pressure control;
the signal output end of the air pressure sensor ' is connected with the second signal receiving end of the single-chip microcomputer, and the second signal output end of the single-chip microcomputer is connected with the signal receiving end of the electric switch ' and used for controlling the electric switch ' to be turned on or turned off.
8. An auxiliary device for use in an ignition system electromagnetic compatibility test procedure according to claim 7, wherein:
the lower end of the vertical high-pressure pipe is connected with the exhaust assembly mounting hole through an exhaust connector;
the middle part of the vertical high-pressure pipe is connected with one end of the transverse high-pressure pipe through a tee joint.
9. An auxiliary device used in an ignition system electromagnetic compatibility test procedure according to claim 6, wherein:
the grounding binding post is arranged on the side of the lower part of the simulation cylinder body and is used for being connected to the negative pole of the secondary coil and the laboratory ground through a low-resistance wire.
10. An auxiliary device for use during an ignition system electromagnetic compatibility test according to any one of claims 1 to 9, wherein:
the storage battery is connected with the single chip microcomputer and used for supplying power to the single chip microcomputer.
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| CN202110268749.4A CN112904137A (en) | 2021-03-12 | 2021-03-12 | Auxiliary device used in ignition system electromagnetic compatibility test process |
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| CN202110268749.4A CN112904137A (en) | 2021-03-12 | 2021-03-12 | Auxiliary device used in ignition system electromagnetic compatibility test process |
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