CN116559558A - All-in-one electric drive radiation emission test system for new energy automobile and control method thereof - Google Patents
All-in-one electric drive radiation emission test system for new energy automobile and control method thereof Download PDFInfo
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- CN116559558A CN116559558A CN202310418308.7A CN202310418308A CN116559558A CN 116559558 A CN116559558 A CN 116559558A CN 202310418308 A CN202310418308 A CN 202310418308A CN 116559558 A CN116559558 A CN 116559558A
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- 238000012360 testing method Methods 0.000 title claims abstract description 44
- 230000005855 radiation Effects 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 230000005284 excitation Effects 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract description 10
- 238000005259 measurement Methods 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000000737 periodic effect Effects 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims 2
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000011897 real-time detection Methods 0.000 abstract description 2
- 239000012811 non-conductive material Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000013028 emission testing 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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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention discloses an all-in-one electric drive radiation emission test system for a new energy automobile and a control method thereof, belonging to the technical field of all-in-one electric drive electromagnetic compatibility of the new energy automobile, and comprising the following steps: the power supply system comprises a high-voltage direct-current stabilized power supply system for supplying high-voltage power to the all-in-one electric drive to be tested and a low-voltage direct-current stabilized power supply system for supplying low-voltage power; the measuring system is used for measuring the all-in-one radiation emission noise; the excitation and detection system is used for being connected with a control signal of the all-in-one electric drive to be detected in the darkroom; the dynamometer system is used for controlling the rotating speed and the torque of the all-in-one electric drive to be tested; the to-be-tested all-in-one electric drive system is arranged on a non-conductive material with low relative dielectric constant, and the material with low relative dielectric constant is arranged on a reference grounding metal surface of the anechoic chamber. The invention can realize dynamic real-time detection of the control signals under different working conditions of the all-in-one electric drive, effectively reduce the test time, reduce the test cost and improve the test efficiency.
Description
Technical Field
The invention belongs to the technical field of all-in-one electro-magnetic compatibility of new energy automobiles, and particularly relates to an all-in-one electro-magnetic radiation emission test system for a new energy automobile and a control method thereof.
Background
At present, the new energy automobile mainly uses three-in-one electric drive, the three-in-one electric drive is gradually developed, and compared with the traditional three-in-one electric drive, the three-in-one electric drive has the advantages that the three-in-one electric drive is internally additionally integrated with a high-voltage three-in-one module, the electromagnetic compatibility is more complex, and the radiation emission detection has important significance for the running safety, stability and reliability of the automobile.
Currently, the all-in-one electro-driving radiation emission test belongs to the blank direction, and therefore, it is needed to provide an all-in-one electro-driving radiation emission test system for a new energy automobile and a control method thereof.
Disclosure of Invention
Aiming at the problems of exceeding of electromagnetic background noise, unstable signals and the like of a testing environment in the prior art, the invention provides an all-in-one electric drive radiation emission testing system for a new energy automobile and a control method thereof, which can realize the radiation emission test of all-in-one electric drive.
The invention is realized by the following technical scheme:
all-in-one electric drive radiation emission test system for new energy automobile includes:
the power supply system comprises a high-voltage direct-current stabilized power supply system for supplying high-voltage power to the all-in-one electric drive to be tested and a low-voltage direct-current stabilized power supply system for supplying low-voltage power;
the measuring system is used for measuring the all-in-one radiation emission noise;
the excitation and detection system is used for being connected with a control signal of the all-in-one electric drive to be detected in the darkroom;
the dynamometer system is used for controlling the rotating speed and the torque of the all-in-one electric drive to be tested;
the to-be-tested all-in-one electric drive system is arranged on a non-conductive low-relative-permittivity material which is arranged on a reference grounding metal surface of the anechoic chamber.
Further, the high-voltage direct-current stabilized power supply system includes: the high-voltage power supply comprises a high-voltage direct-current power supply, a power line filter, a high-voltage power line, an additional shielding box, two groups of high-voltage stable impedance networks, two groups of loads, an impedance matching network and a high-voltage wire harness; the high-voltage direct-current power supply is connected with the input end of the power line filter, the output end of the power line filter is connected with the input ends of two groups of high-voltage stable impedance networks respectively through two output ends of a high-voltage power line, the output ends of the two groups of high-voltage stable impedance networks are connected with a load and an impedance matching network respectively, and finally the high-voltage direct-current power supply is connected with an all-in-one electric drive to be tested through a high-voltage wire harness.
Further, the high-voltage direct-current power supply is arranged outside the darkroom;
the power line filter is arranged on the darkroom wall;
the high-voltage power line, the two groups of high-voltage stable impedance networks, the two groups of loads and the impedance matching network are arranged in an additional shielding box which is arranged on the reference grounding metal surface;
the high voltage wire harness is disposed on a low relative permittivity material.
Further, the low-voltage direct-current stabilized power supply system includes: a low voltage DC power supply, a low voltage power supply line, a low voltage analog load, a low voltage stable impedance network, three groups of loads and a low voltage line; the two output ends of the low-voltage direct-current power supply and the low-voltage analog load are connected with the three groups of low-voltage stable impedance networks and loads through low-voltage power lines respectively, and finally are connected with the all-in-one electric drive to be tested through a low-voltage wire harness.
Further, the low-voltage direct-current power supply, the low-voltage power supply line, the low-voltage analog load, the low-voltage stable impedance network and the three groups of loads are arranged on a reference grounding metal plane in the dark room;
the low voltage wire harness is disposed on the low relative permittivity material.
Further, the measurement system includes: measuring equipment, wall board connector and antenna;
the measuring device is arranged outside the darkroom and is connected with the input end of a wallboard connector arranged on the wall of the darkroom, and the output end of the wallboard connector is connected with the antenna.
Further, the antenna is selected according to the test frequency band, and comprises a rod antenna, a biconical antenna, a log periodic antenna and a horn antenna.
Further, the excitation and detection system includes: excitation and detection equipment, two photoelectric converters; the two photoelectric converters comprise a first photoelectric converter and a second photoelectric converter; the first photoelectric converter is arranged in the darkroom wall, and the second photoelectric converter is arranged on the low relative dielectric constant cut-out; the excitation and detection equipment is arranged outside the darkroom, and the electric signals are converted into optical signals after passing through the first photoelectric converter and enter the darkroom and are converted into electric signals after passing through the second photoelectric converter, so that the electric drive with the multiple-in-one electric drive to be detected is excited and detected.
Further, the dynamometer system includes: dynamometer and through-wall shaft; the power measuring machine is arranged outside the darkroom and is connected with a wall penetrating shaft of the all-in-one electric drive to be measured on the darkroom wall.
On the other hand, the invention also provides a control method of the all-in-one electric drive radiation emission test system for the new energy automobile, which specifically comprises the following steps:
s1, turning on a low-voltage direct current power supply;
s2, turning on a high-voltage direct-current power supply;
s3, setting the voltage value of the high-voltage direct-current power supply as the rated value of the all-in-one electric drive;
step S4, confirming that the high-voltage power-on state is normal and the function of the device is normal;
s5, selectively switching on an alternating current power supply according to the working mode;
s6, increasing the rotating speed of the dynamometer to a required value of a working mode;
s7, setting the all-in-one electric drive torque as a working mode requirement value;
step S8, connecting a test antenna according to different test frequency bands, receiving signals and recording;
and S9, setting the rotating speed and torque to 0, and closing the high-voltage power supply and the low-voltage power supply.
Compared with the prior art, the invention has the following advantages:
the all-in-one electric drive radiation emission test system for the new energy automobile and the control method thereof are suitable for the radiation emission test of the all-in-one electric drive for the new energy automobile, can realize dynamic real-time detection of control signals under different working conditions of the all-in-one electric drive, and can furthest cover all working states of the all-in-one electric drive through different control methods, thereby effectively reducing test time, reducing test cost and improving test efficiency. Meanwhile, through photoelectric signal conversion, the problems of exceeding of electromagnetic background noise of a test environment, unstable signals and the like are effectively solved.
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. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.
FIG. 1 is a block diagram of an all-in-one electrically driven radiation emission test system for a new energy automobile;
fig. 2 is a flow chart of a control method of the all-in-one electric drive radiation emission test system for the new energy automobile.
Detailed Description
For a clear and complete description of the technical scheme and the specific working process thereof, the following specific embodiments of the invention are provided with reference to the accompanying drawings in the specification:
in the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Example 1
As shown in fig. 1, the structure block diagram of the multi-in-one electric drive radiation emission test system for the new energy automobile of the embodiment is shown, the test system,
comprising the following steps: the power supply system comprises a high-voltage direct-current stabilized power supply system for supplying high-voltage power to the all-in-one electric drive to be tested and a low-voltage direct-current stabilized power supply system for supplying low-voltage power; the measuring system is used for measuring the all-in-one radiation emission noise; the excitation and detection system is used for being connected with a control signal of the all-in-one electric drive to be detected in the darkroom; the dynamometer system is used for controlling the rotating speed and the torque of the all-in-one electric drive to be tested;
the to-be-tested all-in-one electric drive system is arranged on a non-conductive low-relative-permittivity material, wherein the low-relative-permittivity material is positioned on a reference grounding metal surface of the anechoic chamber;
the high-voltage direct-current stabilized power supply system comprises: the high-voltage power supply comprises a high-voltage direct-current power supply, a power line filter, a high-voltage power line, an additional shielding box, two groups of high-voltage stable impedance networks, two groups of loads, an impedance matching network and a high-voltage wire harness. The high-voltage direct-current power supply is arranged outside the darkroom, the power line filter is arranged on the darkroom wall, the high-voltage power line, the two groups of high-voltage stable impedance networks, the two groups of loads and the impedance matching network are arranged in the additional shielding box, and the additional shielding box is arranged on the reference grounding metal surface. The high voltage wire harness should be disposed on a low relative permittivity material.
The high-voltage direct-current power supply is connected with the input end of the power line filter, the output end of the power line filter is connected with the input ends of two groups of high-voltage stable impedance networks respectively after passing through the high-voltage power line, the output ends of the two groups of high-voltage stable impedance networks are connected with a 50 omega load and an impedance matching network respectively, and finally the output ends of the two groups of high-voltage stable impedance networks are connected with the all-in-one electric drive to be tested through a high-voltage wire harness.
The low-voltage direct-current stabilized power supply system comprises: a low voltage dc power supply, a low voltage power supply line, a low voltage analog load, a low voltage stable impedance network, three groups of loads, and a low voltage line. The low-voltage direct-current power supply, the low-voltage power supply line, the low-voltage analog load, the low-voltage stable impedance network and the three groups of loads are arranged on a reference grounding metal plane in the dark room. The low voltage wire harness should be disposed on the low relative permittivity material.
The two output ends of the low-voltage direct-current power supply and the low-voltage analog load are respectively connected with three groups of low-voltage stable impedance networks and 50 omega loads through low-voltage power lines, and finally are connected with the all-in-one electric drive to be tested through low-voltage wiring harnesses.
The measurement system includes: measuring equipment, wall plate connector and antenna. The antenna is selected according to the test frequency band and comprises a rod antenna, a biconical antenna, a log periodic antenna and a horn antenna. The measuring equipment is arranged outside the darkroom and is connected with the input end of a wallboard connector arranged on the wall of the darkroom, and the output end of the wallboard connector is connected with the antenna.
The excitation and detection system includes: excitation and detection equipment, two photoelectric converters. The first photoelectric converter is arranged in the darkroom wall, and the second photoelectric converter is arranged on the low relative dielectric constant trim.
The excitation and detection equipment is arranged outside the darkroom, and the electric signals are converted into optical signals after passing through the first photoelectric converter and enter the darkroom and are converted into electric signals after passing through the second photoelectric converter, so that the all-in-one electric drive to be detected is excited and detected.
The dynamometer system includes: dynamometer and through-wall shaft. The dynamometer is arranged outside the darkroom and is connected with a wall penetrating shaft of the all-in-one electric drive to be tested on the darkroom wall.
In this embodiment, the multiple-in-one electric drive radiation emission test system for a new energy automobile includes three working modes, specifically shown in table 1;
table 1 is a schematic representation of three modes of operation of the test system
Example 2
As shown in fig. 2, a flow chart of a control method of the all-in-one electrically-driven radiation emission test system for a new energy automobile provided by the embodiment is shown, where the control method specifically includes the following steps:
step S1, a low-voltage direct-current power supply is turned on;
step S2, turning on a high-voltage direct-current power supply;
step S3, setting the voltage value of the high-voltage direct-current power supply as the rated value of the all-in-one electric drive;
step S4, confirming that the high-voltage power-on state is normal and the function of the device is normal;
step S5, selectively switching on an alternating current power supply according to the working mode;
step S6, the rotating speed of the dynamometer is increased to a required value of a working mode;
s7, setting the all-in-one electric drive torque as a working mode requirement value;
step S8, connecting a test antenna according to different test frequency bands, receiving signals and recording;
and S9, setting the rotating speed and torque to 0, and closing the high-voltage power supply and the low-voltage power supply.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the scope of the technical concept of the present invention, and all the simple modifications belong to the protection scope of the present invention.
In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.
Moreover, any combination of the various embodiments of the invention can be made without departing from the spirit of the invention, which should also be considered as disclosed herein.
Claims (10)
1. All-in-one electric drive radiation emission test system for new energy automobile, its characterized in that includes:
the power supply system comprises a high-voltage direct-current stabilized power supply system for supplying high-voltage power to the all-in-one electric drive to be tested and a low-voltage direct-current stabilized power supply system for supplying low-voltage power;
the measuring system is used for measuring the all-in-one radiation emission noise;
the excitation and detection system is used for being connected with a control signal of the all-in-one electric drive to be detected in the darkroom;
the dynamometer system is used for controlling the rotating speed and the torque of the all-in-one electric drive to be tested;
the to-be-tested all-in-one electric drive system is arranged on a non-conductive low-relative-permittivity material which is arranged on a reference grounding metal surface of the anechoic chamber.
2. The system for testing the emission of all-in-one electrically driven radiation for a new energy automobile according to claim 1, wherein the high-voltage direct-current stabilized power supply system comprises: the high-voltage power supply comprises a high-voltage direct-current power supply, a power line filter, a high-voltage power line, an additional shielding box, two groups of high-voltage stable impedance networks, two groups of loads, an impedance matching network and a high-voltage wire harness; the high-voltage direct-current power supply is connected with the input end of the power line filter, the output end of the power line filter is connected with the input ends of two groups of high-voltage stable impedance networks respectively through two output ends of a high-voltage power line, the output ends of the two groups of high-voltage stable impedance networks are connected with a load and an impedance matching network respectively, and finally the high-voltage direct-current power supply is connected with an all-in-one electric drive to be tested through a high-voltage wire harness.
3. The system for testing the emission of the all-in-one electric drive radiation for the new energy automobile according to claim 2, wherein the high-voltage direct-current power supply is arranged outside the darkroom;
the power line filter is arranged on the darkroom wall;
the high-voltage power line, the two groups of high-voltage stable impedance networks, the two groups of loads and the impedance matching network are arranged in an additional shielding box which is arranged on the reference grounding metal surface;
the high voltage wire harness is disposed on a low relative permittivity material.
4. The system for testing the emission of all-in-one electrically driven radiation for a new energy vehicle of claim 1, wherein the low voltage dc regulated power supply system comprises: a low voltage DC power supply, a low voltage power supply line, a low voltage analog load, a low voltage stable impedance network, three groups of loads and a low voltage line; the two output ends of the low-voltage direct-current power supply and the low-voltage analog load are connected with the three groups of low-voltage stable impedance networks and loads through low-voltage power lines respectively, and finally are connected with the all-in-one electric drive to be tested through a low-voltage wire harness.
5. The system for testing the emission of the all-in-one electric drive radiation for the new energy automobile according to claim 4, wherein the low-voltage direct current power supply, the low-voltage power supply line, the low-voltage analog load, the low-voltage stable impedance network and the three groups of loads are arranged on a reference grounding metal plane in a dark room;
the low voltage wire harness is disposed on the low relative permittivity material.
6. The multiple-in-one electrically driven radiation emission test system for a new energy automobile of claim 1, wherein the measurement system comprises: measuring equipment, wall board connector and antenna;
the measuring device is arranged outside the darkroom and is connected with the input end of a wallboard connector arranged on the wall of the darkroom, and the output end of the wallboard connector is connected with the antenna.
7. The system of claim 1, wherein the antenna is selected based on a test frequency band, and comprises a rod antenna, a biconical antenna, a log periodic antenna, and a horn antenna.
8. The multiple-in-one electrically driven radiation emission test system for a new energy vehicle of claim 1, wherein said excitation and detection system comprises: excitation and detection equipment, two photoelectric converters; the two photoelectric converters comprise a first photoelectric converter and a second photoelectric converter; the first photoelectric converter is arranged in the darkroom wall, and the second photoelectric converter is arranged on the low relative dielectric constant cut-out; the excitation and detection equipment is arranged outside the darkroom, and the electric signals are converted into optical signals after passing through the first photoelectric converter and enter the darkroom and are converted into electric signals after passing through the second photoelectric converter, so that the electric drive with the multiple-in-one electric drive to be detected is excited and detected.
9. The multiple-in-one electrically driven radiation emission test system for a new energy automobile of claim 1, wherein the dynamometer system comprises: dynamometer and through-wall shaft; the power measuring machine is arranged outside the darkroom and is connected with a wall penetrating shaft of the all-in-one electric drive to be measured on the darkroom wall.
10. The method for controlling the all-in-one electrically driven radiation emission test system for the new energy automobile according to claim 1, which is characterized by comprising the following steps:
s1, turning on a low-voltage direct current power supply;
s2, turning on a high-voltage direct-current power supply;
s3, setting the voltage value of the high-voltage direct-current power supply as the rated value of the all-in-one electric drive;
step S4, confirming that the high-voltage power-on state is normal and the function of the device is normal;
s5, selectively switching on an alternating current power supply according to the working mode;
s6, increasing the rotating speed of the dynamometer to a required value of a working mode;
s7, setting the all-in-one electric drive torque as a working mode requirement value;
step S8, connecting a test antenna according to different test frequency bands, receiving signals and recording;
and S9, setting the rotating speed and torque to 0, and closing the high-voltage power supply and the low-voltage power supply.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310418308.7A CN116559558A (en) | 2023-04-19 | 2023-04-19 | All-in-one electric drive radiation emission test system for new energy automobile and control method thereof |
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| CN202310418308.7A CN116559558A (en) | 2023-04-19 | 2023-04-19 | All-in-one electric drive radiation emission test system for new energy automobile and control method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115327188A (en) * | 2022-06-30 | 2022-11-11 | 中国第一汽车股份有限公司 | Detection system for detecting electromagnetic radiation quantity of vehicle parts |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115327188A (en) * | 2022-06-30 | 2022-11-11 | 中国第一汽车股份有限公司 | Detection system for detecting electromagnetic radiation quantity of vehicle parts |
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