CN102313851A - Method for testing electromagnetic interference propagation path of motor drive system of pure electric vehicle - Google Patents
Method for testing electromagnetic interference propagation path of motor drive system of pure electric vehicle Download PDFInfo
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- CN102313851A CN102313851A CN201110181046A CN201110181046A CN102313851A CN 102313851 A CN102313851 A CN 102313851A CN 201110181046 A CN201110181046 A CN 201110181046A CN 201110181046 A CN201110181046 A CN 201110181046A CN 102313851 A CN102313851 A CN 102313851A
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Abstract
The invention discloses a method for testing an electromagnetic interference propagation path of a motor drive system of a pure electric vehicle. The method comprises the steps of platform building, lead wire numbering, frequency spectrum testing, comparing and analyzing and the like. By the method, the main propagation path of the electromagnetic interface in the system can be detected, and the intensity and the frequency band range of the electromagnetic interference on each propagation path can also be detected so as to help the engineering technicians to analyze the electromagnetic interference on the system harness, and direct the technicians to perform good electromagnetic compatibility design and rectification on the motor drive system, thereby improving the electromagnetic compatibility of the overall vehicle. The method disclosed by the invention is simple and easy to operate and has strong universality.
Description
Technical field
The present invention relates to the Conducted Electromagnetic Interference technical field, particularly a kind of electromagnetic interference (EMI) travel path method of testing of pure electric automobile motor driven systems.
Background technology
Along with electronic product has obtained using widely in automobile, it is more and more severeer that the emc issue of automobile becomes.It is particularly important that this problem seems in pure electric automobile and hybrid vehicle; If there is not good Electro Magnetic Compatibility between the mobile unit; Not only can influence the operate as normal of equipment; When serious even can threaten the safety traffic of vehicle, the emc issue that therefore solves pure electric automobile or hybrid vehicle is very urgent.Power device in the motor driven systems is usually operated on off state at a high speed; It produces fast-changing voltage, electric current can form strong electromagnetic interference (EMI) in very wide frequency band, and this interference meeting produces Conduction Interference through the wire harness that links to each other with power component to other parts.The Conduction Interference that this switching process produces is considered to electromagnetic interference source the most serious in the motor driven systems, can control system and other equipment that is subject to electromagnetic interference (EMI) of automobile be exerted an influence.At present, to the electromagnetic compatibility Journal of Sex Research of electric automobile or hybrid vehicle seldom, only research mostly concentrates on the prediction aspect of electromagnetic interference (EMI), and how Shang Weijian is to analyzing and test the method research of electromagnetic interference (EMI) travel path.
Summary of the invention
In view of this, the electromagnetic interference (EMI) travel path method of testing that the purpose of this invention is to provide a kind of pure electric automobile motor driven systems.This method can detect the main travel path of electromagnetic interference (EMI) in the system; And the size and the frequency band range that detect electromagnetic interference (EMI) on every travel path; Thereby instruct engineering technical personnel to investigate the Conducted Electromagnetic Interference on the motor driven systems wire harness, be convenient to system is carried out good EMC Design.
The present invention realizes through following technical scheme:
The electromagnetic interference (EMI) travel path method of testing of this pure electric automobile motor driven systems may further comprise the steps:
1) test environment of launching according to the automotive electronics parts conduction of CISPR25 standard code is built test platform in the half-wave darkroom, said test platform comprises the stand of bearing system, drive system to be measured, current probe and spectrum analyzer;
2) with the input and output lead number consecutively of the inverter of drive system to be measured, be respectively 1,2,3 ... N number;
When 3) testing the Line 1 bundle, the consumption-type ferrite is installed on the inlet end of all the other leads near the inverter port, motor driven systems is operated under the standard testing state, accurately measure and write down the Conduction Interference current spectrum on the lead 1 with current probe;
4) according to the mode identical with step 3), except that tested lead, all the other leads near the inverter port inlet end the consumption-type ferrite all is installed, and note the spectrogram of the Conduction Interference on the tested wire harness;
5) treat all leads all measure finish after, with the Conduction Interference current spectrum comparative analysis as a result that records, the main travel path of electromagnetic interference (EMI) in the guidance technology personnel judgement system, and size and the frequency band range of confirming electromagnetic interference (EMI) on every travel path.
Further, in step 5), realize analysis through upper main frame, and automatically analysis result is sorted out the spectrogram of the Conducted Electromagnetic Interference on each wire harness.
The invention has the beneficial effects as follows:
Method of the present invention not only can detect the main travel path of electromagnetic interference (EMI) in the system; But also can detect the size and the frequency band range of electromagnetic interference (EMI) on every travel path; Help engineering technical personnel that the electromagnetic interference (EMI) on system's wire harness is analyzed; And the guidance technology personnel carry out good EMC Design and rectification to motor driven systems, thereby improve the Electro Magnetic Compatibility of car load, method of the present invention simply, operate, have stronger versatility easily.
Other advantages of the present invention, target and characteristic will be set forth in instructions subsequently to a certain extent; And to a certain extent; Based on being conspicuous to those skilled in the art, perhaps can from practice of the present invention, obtain instruction to investigating of hereinafter.Target of the present invention and other advantages can realize and obtain through following instructions and claims.
Description of drawings
In order to make the object of the invention, technical scheme and advantage clearer, will combine accompanying drawing that the present invention is made further detailed description below, wherein:
Fig. 1 is an apparatus structure synoptic diagram of the present invention;
Fig. 2 is the ferritic connected mode synoptic diagram of lead and consumption-type.
Embodiment
Below will carry out detailed description to the preferred embodiments of the present invention with reference to accompanying drawing.Should be appreciated that preferred embodiment has been merely explanation the present invention, rather than in order to limit protection scope of the present invention.
The electromagnetic interference (EMI) travel path method of testing of this pure electric automobile motor driven systems may further comprise the steps:
1) test environment of launching according to the automotive electronics parts conduction of CISPR25 standard code is built test platform in the half-wave darkroom, said test platform comprises the stand of bearing system, drive system to be measured, current probe and spectrum analyzer;
2) with the input and output lead number consecutively of inverter to be measured, be respectively 1,2,3 ... N number;
When 3) testing the Line 1 bundle, the consumption-type ferrite is installed on the inlet end of all the other leads near the inverter port, motor driven systems is operated under the standard testing state, accurately measure and write down the Conduction Interference current spectrum on the lead 1 with current probe;
4) according to the mode identical with step 3), except that tested lead, all the other leads are all installed the consumption-type ferrite near the inlet end of inverter port, and note the spectrogram of the Conduction Interference on the tested wire harness;
As being directed against the system that 3 leads are arranged; When measuring No. 2 leads; The consumption-type ferrite is installed in the inlet end of No. 1 lead and No. 3 leads, motor driven systems is operated under the standard testing state, with current probe accurately measure and record lead 2 on the Conduction Interference current spectrum; Then the consumption-type ferrite is installed in the inlet end of No. 1 lead and No. 2 leads, motor driven systems is operated under the standard testing state, accurately measure and write down the Conduction Interference current spectrum on the lead No. 3 with current probe, thereby accomplish whole test.
5) treat all leads all measure finish after, with the Conduction Interference current spectrum comparative analysis as a result that records, the main travel path of electromagnetic interference (EMI) in the guidance technology personnel judgement system, and size and the frequency band range of confirming electromagnetic interference (EMI) on every travel path.
In step 5), realize analysis through upper main frame, and automatically analysis result is sorted out the spectrogram of the Conducted Electromagnetic Interference on each wire harness.
As shown in Figure 2, in the present embodiment, the consumption-type ferrite adopts the circle ring column structure, and lead passes ferritic middle circular hole, and after twining several circles on the consumption-type ferrite, is passing, and realizes fixing.This kind mode can the warranty test effect.
Explanation is at last; Above embodiment is only unrestricted in order to technical scheme of the present invention to be described; Although with reference to preferred embodiment the present invention is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention; And not breaking away from the aim and the scope of present technique scheme, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (2)
1. the electromagnetic interference (EMI) travel path method of testing of pure electric automobile motor driven systems is characterized in that: may further comprise the steps:
1) test environment of launching according to the automotive electronics parts conduction of CISPR25 standard code is built test platform in the half-wave darkroom, said test platform comprises the stand of bearing system, drive system to be measured, current probe and spectrum analyzer;
2) with the input and output lead number consecutively of the inverter of drive system to be measured, be respectively 1,2,3 ... N number;
When 3) testing the Line 1 bundle, the consumption-type ferrite is installed on the inlet end of all the other leads near the inverter port, motor driven systems is operated under the standard testing state, accurately measure and write down the Conduction Interference current spectrum on the lead 1 with current probe;
4) according to the mode identical with step 3), except that tested lead, all the other leads are all installed the consumption-type ferrite near the inlet end of inverter port, and note the spectrogram of the Conduction Interference on the tested wire harness;
5) treat all leads all measure finish after, with the Conduction Interference current spectrum comparative analysis as a result that records, according to the main travel path of electromagnetic interference (EMI) in the judgement system as a result, and size and the frequency band range of confirming electromagnetic interference (EMI) on every travel path.
2. the electromagnetic interference (EMI) travel path method of testing of pure electric automobile motor driven systems according to claim 1; It is characterized in that: in step 5); Realize analysis through upper main frame, and automatically analysis result is sorted out the spectrogram of the Conducted Electromagnetic Interference on each wire harness.
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| CN 201110181046 CN102313851B (en) | 2011-06-30 | 2011-06-30 | Method for testing electromagnetic interference propagation path of motor drive system of pure electric vehicle |
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| CN 201110181046 CN102313851B (en) | 2011-06-30 | 2011-06-30 | Method for testing electromagnetic interference propagation path of motor drive system of pure electric vehicle |
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Cited By (12)
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| CN102967787A (en) * | 2012-12-04 | 2013-03-13 | 中国北方车辆研究所 | Electromagnetic interference test device of dynamic electromechanical hybrid system |
| CN103176089A (en) * | 2013-03-18 | 2013-06-26 | 北京航空航天大学 | Weak electromagnetic coupling path determining method |
| CN103197175A (en) * | 2013-03-18 | 2013-07-10 | 北京航空航天大学 | Confirming method of same frequency multiple interference for electromagnetic coupling weak path |
| CN104198834A (en) * | 2014-07-30 | 2014-12-10 | 中国电子科技集团公司第三十研究所 | Vehicle electromagnetic compatibility assessment method |
| CN104635089A (en) * | 2015-02-10 | 2015-05-20 | 北京理工大学 | Conduction electromagnetic interference experimental platform for electric automobile motor driving system |
| CN104698860A (en) * | 2015-02-05 | 2015-06-10 | 北京理工大学 | Conduction electromagnetic interference simulation system for alternating-current motor inverter power circuit of electric car |
| CN107228968A (en) * | 2017-06-07 | 2017-10-03 | 中车长春轨道客车股份有限公司 | A kind of three rails of testing are powered the device of subway train Conduction Interference electric current |
| CN107272666A (en) * | 2017-07-31 | 2017-10-20 | 北京新能源汽车股份有限公司 | Localization method, device and the new-energy automobile of emc testing |
| CN109800499A (en) * | 2019-01-16 | 2019-05-24 | 电子科技大学 | A kind of modeling and simulating method of inverter motor drive system electromagnetic interference emission |
| CN109819641A (en) * | 2019-04-11 | 2019-05-28 | 太仓市同维电子有限公司 | Passive optical network multi-user unit radiation-emitting positions amelioration method |
| CN112881845A (en) * | 2021-01-26 | 2021-06-01 | 浙江亚太机电股份有限公司 | Device and method for measuring conduction emission current of ECU signal wire |
| CN114065479A (en) * | 2021-10-12 | 2022-02-18 | 荣耀终端有限公司 | Electromagnetic interference evaluation simulation method based on reciprocity principle and computer equipment |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102967787A (en) * | 2012-12-04 | 2013-03-13 | 中国北方车辆研究所 | Electromagnetic interference test device of dynamic electromechanical hybrid system |
| CN103176089A (en) * | 2013-03-18 | 2013-06-26 | 北京航空航天大学 | Weak electromagnetic coupling path determining method |
| CN103197175A (en) * | 2013-03-18 | 2013-07-10 | 北京航空航天大学 | Confirming method of same frequency multiple interference for electromagnetic coupling weak path |
| CN103197175B (en) * | 2013-03-18 | 2015-06-24 | 北京航空航天大学 | Confirming method of same frequency multiple interference for electromagnetic coupling weak path |
| CN103176089B (en) * | 2013-03-18 | 2015-10-21 | 北京航空航天大学 | The defining method in the weak path of a kind of electromagnetic coupled |
| CN104198834A (en) * | 2014-07-30 | 2014-12-10 | 中国电子科技集团公司第三十研究所 | Vehicle electromagnetic compatibility assessment method |
| CN104198834B (en) * | 2014-07-30 | 2017-02-15 | 中国电子科技集团公司第三十研究所 | vehicle electromagnetic compatibility assessment method |
| CN104698860B (en) * | 2015-02-05 | 2020-05-12 | 北京理工大学 | Conducted electromagnetic interference simulation system of power loop of alternating current motor inverter of electric automobile |
| CN104698860A (en) * | 2015-02-05 | 2015-06-10 | 北京理工大学 | Conduction electromagnetic interference simulation system for alternating-current motor inverter power circuit of electric car |
| CN104635089A (en) * | 2015-02-10 | 2015-05-20 | 北京理工大学 | Conduction electromagnetic interference experimental platform for electric automobile motor driving system |
| CN107228968A (en) * | 2017-06-07 | 2017-10-03 | 中车长春轨道客车股份有限公司 | A kind of three rails of testing are powered the device of subway train Conduction Interference electric current |
| CN107272666A (en) * | 2017-07-31 | 2017-10-20 | 北京新能源汽车股份有限公司 | Localization method, device and the new-energy automobile of emc testing |
| CN107272666B (en) * | 2017-07-31 | 2019-07-09 | 北京新能源汽车股份有限公司 | Localization method, device and the new-energy automobile of electromagnetic compatibility testing |
| CN109800499A (en) * | 2019-01-16 | 2019-05-24 | 电子科技大学 | A kind of modeling and simulating method of inverter motor drive system electromagnetic interference emission |
| CN109819641A (en) * | 2019-04-11 | 2019-05-28 | 太仓市同维电子有限公司 | Passive optical network multi-user unit radiation-emitting positions amelioration method |
| CN112881845A (en) * | 2021-01-26 | 2021-06-01 | 浙江亚太机电股份有限公司 | Device and method for measuring conduction emission current of ECU signal wire |
| CN112881845B (en) * | 2021-01-26 | 2022-11-04 | 浙江亚太机电股份有限公司 | Device and method for measuring conduction emission current of ECU signal wire |
| CN114065479A (en) * | 2021-10-12 | 2022-02-18 | 荣耀终端有限公司 | Electromagnetic interference evaluation simulation method based on reciprocity principle and computer equipment |
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