CN107271071B - New-energy automobile permanent-magnetic synchronous motor stator temperature sensor consistency detecting method - Google Patents
New-energy automobile permanent-magnetic synchronous motor stator temperature sensor consistency detecting method Download PDFInfo
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- CN107271071B CN107271071B CN201710619040.8A CN201710619040A CN107271071B CN 107271071 B CN107271071 B CN 107271071B CN 201710619040 A CN201710619040 A CN 201710619040A CN 107271071 B CN107271071 B CN 107271071B
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- temperature
- synchronous motor
- stator
- temperature sensor
- energy automobile
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
Abstract
The invention discloses a kind of new-energy automobile permanent-magnetic synchronous motor stator temperature sensor consistency detecting methods, comprising steps of inputting certain electric current to permanent magnet synchronous motor A~C phase；After motor balance, stator temperature and environment temperature are acquired respectively and is input to coupling calculator；Couple stator temperature and environment temperature of the calculator by input, determining equivalent temperature of tabling look-up；Finally judge whether equivalent temperature is qualified by decision-making system.The present invention comprehensively considers environment temperature test signal in conjunction with company standard and forms the detection system of an open circuit according to influence of the identical copper loss loss to detection to winding temperature rise is inputted.Test by the method for the invention, it is ensured that the accuracy and consistency that the temperature sensor of product is qualified, temperature measures improve product quality, guarantee life of product and vehicle safety.
Description
Technical field
The present invention relates to current new-energy automobile, in particular to a kind of permanent-magnetic synchronous motor stator temperature sensor consistency
Detection method.
Background technique
New energy automobile motor just gradually tends to high power density, high speed at present, and motor temperature rise problem also gradually highlights.
The temperature of each component of motor, is related to service life and the safety of product, therefore moment monitoring motor temperature and temperature value is accurate
Property and consistency are particularly important, and need the accuracy and consistency of convenient, fast and accurate test temperature, currently without
Specific test equipment and method, rely solely on the experience for manufacturing producer, it is therefore desirable to carry out in test method and equipment
Innovation.
Existing test method is mainly to rely on the manufacturing technology level of stator manufacturing firm, the contents such as reasonable quality management
It goes to guarantee temperature accuracy and consistency, but new-energy automobile is in starting stage, stator manufacturing firm technological level at present
It is irregular with quality management, it is difficult to ensure that the accurately and consistently property of product, identical producer also will appear the production of consistency difference
Product, different manufacturers homogeneity of product are more difficult to guarantee.
Summary of the invention
Object of the present invention is to: a kind of new-energy automobile permanent-magnetic synchronous motor stator temperature sensor consistency detection side is provided
Method, the consistency and accuracy problem of the identical producer's product of effective solution or different manufacturers like products guarantee final produce
Product improve the reliability and risk control ability of product in the accuracy and consistency of temperature rise test phase.
The technical scheme is that
New-energy automobile permanent-magnetic synchronous motor stator temperature sensor consistency detecting method, comprising steps of
S1, certain electric current is inputted to permanent magnet synchronous motor A~C phase；
After S2, motor balance, stator temperature is acquired, and be input to coupling calculator；
S3, acquisition environment temperature, and it is input to coupling calculator；
The stator temperature and environment temperature of S4, coupling calculator by input, determining equivalent temperature of tabling look-up；
S5, finally by decision-making system judge whether equivalent temperature is qualified.
Preferably, step S1 inputs certain electric current, the direct current to permanent magnet synchronous motor A~C phase using DC power supply
The requirements of type selecting of power supply: internal resistance is less than setting value, and output power is higher than setting.
Preferably, the stator temperature of step S2 acquisition is to pass through decoding after the included temperature sensor of stator acquires signal
The result that chip obtains.
Preferably, the environment temperature of step S3 acquisition is the ambient temperature results of indoor temperature measurement equipment acquisition.
Preferably, the coupling calculator of step S4 determines equivalent temperature, is to combine simulation result, calculates different chamber's tender feeling
Condition inputs same loss, counts stator temperature, finally carries out interpolation fitting, obtain reasonable numerical tabular, carries out coupling temperature and looks into
It askes.
Preferably, the decision-making system of step S5 is the judge mark designed according to company standard and specific product technical requirements
Barebone.
The invention has the advantages that
1, new-energy automobile permanent-magnetic synchronous motor stator temperature sensor consistency detecting method proposed by the present invention, according to
Influence of the identical copper loss loss to detection to winding temperature rise is inputted, environment temperature test signal is comprehensively considered, in conjunction with company standard,
Form the detection system of an open circuit.
2, the method that the present invention is calculated about environment temperature and stator temperature coupling is determined environment temperature, is determined by emulation
The relationship of sub- temperature and equivalent temperature, and formulate relevant company standard.
3, test by the method for the invention, it is ensured that the accuracy that the temperature sensor of product is qualified, temperature measures
And consistency, product quality is improved, guarantees life of product and vehicle safety.
Detailed description of the invention
The invention will be further described with reference to the accompanying drawings and embodiments:
Fig. 1 is the schematic illustration for being invention permanent-magnetic synchronous motor stator temperature sensor consistency detection.
Specific embodiment
As shown in Figure 1, new-energy automobile permanent-magnetic synchronous motor stator temperature sensor consistency detecting method of the invention,
Its detection structure used includes: constant voltage dc source 1, tested motor 2, stator temperature collector 3, temperature collection device 4,
Temperature couples computing module 5 and result judges module 6.Above-mentioned each signal acquisition module, is attached according to the schematic diagram of Fig. 1,
It is assessed, is judged qualified or not by final system.
The DC power supply needs the internal resistance of source smaller, and the biggish power supply of output power.The current common internal resistance of source
Larger, in test process, power supply is easy to burn, therefore power supply type selecting is very crucial.
The stator temperature is the result that the included temperature sensor of stator is obtained by decoding chip.
The environment temperature is the ambient temperature results of indoor temperature measurement equipment acquisition.
The coupling calculates, and allowing for stator temperature measurement result and environment temperature has stronger coupled relation,
Before whether judge temperature is qualified, need to remove influence of the environment temperature to test result, output phase is to true temperature value.Coupling
Hop algorithm embodies herein, mainly in conjunction with simulation result, calculates different room ambient conditions, inputs same loss, counts stator temperature
Degree, finally carries out interpolation fitting, obtains reasonable numerical tabular, carries out coupling temperature inquiry.
As a result evaluation system is according to company standard and specific product technical requirements, the judgment criteria system of design.
The step of being exported according to power input to evaluation result is as follows:
1, according to technical requirements, certain electric current is inputted to motor A~C phase；
2, the temperature after acquisition stator balance, input coupling calculator；
3, ambient temperature value is acquired, coupling calculator is input to；
4, coupler is by two temperature, determining equivalent temperature of tabling look-up；
5, finally judge whether equivalent temperature is qualified by decision-making system.
Above embodiments are for the test before production, there are also a kind of implementation method are completed in ageing process in production
Test.Comparatively the test in ageing process can guarantee influence of the assembling process to temperature sensor.In aging rack
Other modules other than DC power supply are added, final products can be measured.
It is that the higher water of temperature is passed through by hot fluid laboratory there are also a kind of implementation method, measures stator temperature.It is this
Method is slower, is suitble to model machine verifying and problem verifying.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
It cans understand the content of the present invention and implement it accordingly, it is not intended to limit the scope of the present invention.It is all to lead according to the present invention
The modification for wanting the Spirit Essence of technical solution to be done, should be covered by the protection scope of the present invention.
Claims (4)
1. new-energy automobile permanent-magnetic synchronous motor stator temperature sensor consistency detecting method, which is characterized in that comprising steps of
S1, certain electric current is inputted to permanent magnet synchronous motor A~C phase；
After S2, motor balance, stator temperature is acquired, and be input to coupling calculator；
S3, acquisition environment temperature, and it is input to coupling calculator；
The stator temperature and environment temperature of S4, coupling calculator by input, determining equivalent temperature of tabling look-up；The coupling meter of step S4
It calculates device and determines equivalent temperature, be to combine simulation result, calculate different room ambient conditions, input same loss, count stator temperature, most
Interpolation fitting is carried out eventually, obtains reasonable numerical tabular, carries out equivalent temperature inquiry；
S5, finally by decision-making system judge whether equivalent temperature is qualified.
2. new-energy automobile permanent-magnetic synchronous motor stator temperature sensor consistency detecting method according to claim 1,
It is characterized in that, step S1 inputs certain electric current, the DC power supply to permanent magnet synchronous motor A~C phase using DC power supply
Requirements of type selecting: internal resistance be less than setting value, output power be higher than setting.
3. new-energy automobile permanent-magnetic synchronous motor stator temperature sensor consistency detecting method according to claim 1,
It is characterized in that, the stator temperature of step S2 acquisition, is to pass through decoding chip after the included temperature sensor of stator acquires signal
Obtained result.
4. new-energy automobile permanent-magnetic synchronous motor stator temperature sensor consistency detecting method according to claim 1,
It is characterized in that, the environment temperature of step S3 acquisition, is the ambient temperature results of indoor temperature measurement equipment acquisition.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710619040.8A CN107271071B (en) | 2017-07-26 | 2017-07-26 | New-energy automobile permanent-magnetic synchronous motor stator temperature sensor consistency detecting method |
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| CN201710619040.8A CN107271071B (en) | 2017-07-26 | 2017-07-26 | New-energy automobile permanent-magnetic synchronous motor stator temperature sensor consistency detecting method |
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| CN107271071A CN107271071A (en) | 2017-10-20 |
| CN107271071B true CN107271071B (en) | 2019-04-16 |
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| CN114076896B (en) * | 2021-11-15 | 2023-08-25 | 株洲尚驰电气有限公司 | Static test method for controlling multipoint loss of permanent magnet synchronous motor by excitation signal |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589891A (en) * | 2012-03-02 | 2012-07-18 | 北京理工大学 | Method for estimating endurance life of vehicle motor driving system |
| CN204964649U (en) * | 2015-09-08 | 2016-01-13 | 北京佩特来电机驱动技术有限公司 | Stator module's thermally stable testing arrangement |
| CN106813807A (en) * | 2017-01-05 | 2017-06-09 | 中国科学院上海光学精密机械研究所 | The test device and method of testing of temperature sensor uniformity |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4182082B2 (en) * | 2005-04-18 | 2008-11-19 | ファナック株式会社 | Machine Tools |
| US9815456B2 (en) * | 2014-11-13 | 2017-11-14 | Ford Global Technologies, Llc | Methods and systems for temperature sensor fault detection |
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- 2017-07-26 CN CN201710619040.8A patent/CN107271071B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589891A (en) * | 2012-03-02 | 2012-07-18 | 北京理工大学 | Method for estimating endurance life of vehicle motor driving system |
| CN204964649U (en) * | 2015-09-08 | 2016-01-13 | 北京佩特来电机驱动技术有限公司 | Stator module's thermally stable testing arrangement |
| CN106813807A (en) * | 2017-01-05 | 2017-06-09 | 中国科学院上海光学精密机械研究所 | The test device and method of testing of temperature sensor uniformity |
Non-Patent Citations (1)
| Title |
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| 机电产品BIT设计中传感器选择与优化技术的研究;杨国锋;《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》;20050615(第2期);全文 |
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