CN206440803U - A kind of Portable electric automobile permagnetic synchronous motor device for detecting performance - Google Patents
A kind of Portable electric automobile permagnetic synchronous motor device for detecting performance Download PDFInfo
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- CN206440803U CN206440803U CN201621117667.0U CN201621117667U CN206440803U CN 206440803 U CN206440803 U CN 206440803U CN 201621117667 U CN201621117667 U CN 201621117667U CN 206440803 U CN206440803 U CN 206440803U
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Abstract
The utility model provides a kind of Portable electric automobile permagnetic synchronous motor device for detecting performance, and its device includes torque sensor, locked-rotor device, fastener and decoding current source, wherein the fastener is attached with measured body by bolt；The locked-rotor device end is first attached by bolt with the fastener and measured body progress bearing is fixed again with measured body spline fitted, the other end, without the complexity such as dynamometer machine, high voltage power supply, inverter, low-tension supply, cooling system and the higher equipment of cost；The permagnetic synchronous motor of all different spline interfaces can be corresponded to by changing fastener middle (center) bearing (spline) part；Testing scheme is simple, only need to utilize and decode current source to constant current, initial angle is measured, then carries out stall and measures angle and torque value, then confirmation of tabling look-up can tentatively investigate the problems such as whether undetectable motor initial angle of inverter changes, whether function fails.
Description
Technical field
The utility model is related to automobile motor detection field, more particularly to a kind of Portable electric automobile permagnetic synchronous motor
Device for detecting performance.
Background technology
Under the background that the cry of oil shortage, low-carbon energy-saving grows to even greater heights, lot of domestic and foreign car enterprise is all released with pure electricity
New-energy automobile based on dynamic, hybrid power.In order to support New Energy Industry and form the support chains of feasibility, related industry
Birth and development be it is essential, such as 4S shops correlation maintenance, detection department.
After vehicle is offline, motor assembly subsequent detection, maintenance load are huge and technical difficulty is high, and current motor is initial
The detection of angle and function onboard than relatively difficult to achieve, can technically be judged by the dependent diagnostic service function of inverter,
But the related assembly such as inverter need of work high-tension battery supports that, in the case where failure situation is complicated, inverter is limited to
Vehicle usually can not normal work.
Another method is that motor disassembling gets off, and the detection after dismantling needs to rely on more huge, complicated and cost
High equipment, such as dynamometer machine device, and test needs very professional staff training, be not suitable for the correlation maintenance such as 4S shops,
Testing staff operates, and relevant utility model such as driving motor for electric automobile device for detecting performance is exactly such, test structure
Need load motor, electric machine controller to be measured, load motor controller, high voltage power supply, cooling system etc., testing scheme need by
Individually detected after measured body motor disassembling, it is complex and cost is high, so as to cause very big inconvenience.
Utility model content
In order to solve the above problems, the purpose of this utility model there is provided a kind of Portable electric automobile permanent magnet synchronous electric
Machine device for detecting performance, including torque sensor, locked-rotor device, fastener, decoding current source, relay group, wherein described
Fastener is attached with measured body by bolt；The locked-rotor device one end passes through the fastener elder generation and measured body
Spline fitted, the other end are attached by bolt with the fastener and measured body bearing are fixed again；By described
Fastener and locked-rotor device connection measured body, pass through the torque sensor, the decoding current source and the relay
The mutual cooperation of device group measures rotation and becomes initial angle, current electrical angle, current source vector and actual torque value, by result and product mark
Determine basic vector-torque form do contrast judge motor it is whether normal.
The decoding current source, is that measured body leads to constant current, change relay group connected mode makes measured body produce 6
Vector current, different vector currents make rotor to different direction adhesives and can measure initial angle, as a result need according to adhesive
Situation carries out angle compensation, and 6 initial angles are measured into result is averaging, to improve initial angle measuring accuracy；Decode current source
In decoder module, be provided simultaneously with rotation become decoding function, the current electrical angle of measured body can be measured in real time.
The basic vector-torque form, is the basic vector-torque form formed after product is demarcated, and each rotation becomes just
Beginning angle, current electrical angle, current source vector correspondence one torque value；Obtained rotation change initial angle, current electrical angle, electricity will be tested
The torque result that stream source vector is read with torque sensor is contrasted with product, judges whether motor is normal, through the above way
Can tentatively investigate whether the undetectable motor initial angle of inverter changes, whether function fails.
The locked-rotor device, its end can be carried out arbitrarily more with tested attachment structure according to measured body bearing end form
Change, so as to connect the permagnetic synchronous motor of different bearing end interfaces.
The utility model is a kind of independent detection means, convenient and reliable not against assemblies such as Vehicular battery, inverters,
It is simple to operate.It is characterized in that without dynamometer machine, high voltage power supply, inverter, low-tension supply, cooling system etc. be complicated and cost compared with
High equipment；The permagnetic synchronous motor of all different spline interfaces can be corresponded to by changing bearing (spline) part；Testing scheme
Simply, it is only necessary to using current source is decoded to constant current, initial angle is measured, then carries out stall and measures angle and torque value,
Confirmation of tabling look-up again can tentatively investigate whether the undetectable motor initial angle of inverter changes, whether function fails etc. and ask
Topic.
The utility model is for complexity such as the maintenance, the detections that will occur after current New Energy Industry to certain trend
Problem summary, can be gone out by this low cost, the fast diagnostic instrument of high integration and easy operating method in vehicle
When existing failure, whether the undetectable motor initial angle of inverter changes preliminary investigation, whether function fails etc. asks
Topic.The present apparatus is a kind of independent detection means, convenient and reliable not against assemblies such as Vehicular battery, inverters, simple to operate.
Brief description of the drawings
Fig. 1 test system block diagrams.
Fig. 2 decoding current source control measured body basic vector explanation figures.
1- locked-rotor devices 2- fastening disk 3- torque sensors 4- decoding current source 6- relay group 7- measured bodies
Embodiment
Technical solutions of the utility model are further elaborated below with reference to accompanying drawing.
A kind of Portable electric automobile permagnetic synchronous motor device for detecting performance, including locked-rotor device 1, fastening disk 2, torque
Sensor 3, decodes current source 4, relay group 6.
As shown in figure 1, carrying out rotation first becomes measuring for initial angle, the rotation of measured body 7 is become into excitation, sine, cosine signal
It is connected to decoding current source rotation to become in decoder module, opens decoding current source 4 and lead to constant current to measured body, pass through relay group
6 realize that any one positive pole with decoding current source 4 in measured body three-phase is connected respectively, remaining two-phase and decoding current source 4
Negative pole connection three kinds combination；Specifically, measured body U, which is connected, is connected to the positive pole of decoding current source 4, W, V are connected to decoding electricity
The negative pole in stream source 4；Measured body V, which is connected, is connected to the positive pole of decoding current source 4, and W, U are connected to the negative pole of decoding current source 4；It is tested
Body W, which is connected, is connected to the positive pole of decoding current source 4, and U, V are connected to the negative pole of decoding current source 4；Make the absorption of its rotor in given electricity
At flow vector, decoder module is become by the rotation for decoding current source, the angle of three kinds of states is parsed, averaged, i.e. rotation become just
Beginning angle.
As described in Figure 1, measure after initial angle, locked-rotor device 1 is bolted fixation with fastening disk 2, passes through spline
It is attached again with the motor of measured body 7, and fixed measured body 7 by fastening disk 2 (motor spline, which is surveyed, installs torque sensor,
Test reality output torque value), open decoding current source 4 and lead to constant current to measured body 7, become by the rotation for decoding current source 4
Decoder module reading angular, torque value is read by torque sensor 3, and whether checking angle of tabling look-up is correct.
Described fastening disk 2, as shown in figure 1, having on disk on bolt hole and 4 positioners, positioner has spiral shell
Keyhole is positioned with motor.
There is bolt hole on described locked-rotor device 1, disk, its end construction is interior (outer) spline, can be with being tested in vitro
(interior) spline is connected, and can be changed according to measured body spline difference.
Described torque sensor 3, its major function is to measure the torque value of tested exemplar generation and be uploaded to data
PC。
Described decoding current source 4, its function is that commercial power 380V is converted into direct current 220V to provide for measured body
Constant current, can be realized using bridge rectifier method or by diode inversion etc..
Described decoding current source 4, is that measured body 7 provides constant current, and be tested by changing motor three-phase connection
Body 7 provides 6 kinds of basic step modes, respectively obtains the current phasor of 6 kinds of basic step modes.
Described decoding current source 4, it, which revolves, becomes decoder module, using varying signal Analytic principle is revolved, by matching measured body
Revolve after the parameters such as impedance, no-load voltage ratio, excitation signal is become to rotation, feedback is become by being revolved after rotation using its rotation change decoding function
Just, remaining rotation signal resolution goes out current real-time angular.
Produce torque TePrinciple formula be：
In formula, Te- torque, CT- torque constant,- per pole air-gap flux,- reluctance torque, Is- current source is sweared
Amount, the rotation of θ '-decoding current source becomes the current real-time angular that decoder module is shown, θ1- rotation becomes initial angle.
It is the conducting of U, V, W formation, to disconnect form after inverter diode is opened, turn off such as Fig. 2,0,1,1 representative is led
Logical, 0 represents disconnection；It can be determined to produce 6 kinds of different torques according to 6 kinds of basic step modes and principle formula.
When U, V, W are 0,0,1, WMutually enter electric current+ I, U, V are in parallel out electric current
When U, V, W are 0,1,0, VMutually enter electric current+ I, U, W are in parallel out electric current
When U, V, W are 0,1,1, V, W are in parallel into electric currentUMutually go out electric current- I,
When U, V, W are 1,0,0, UMutually enter electric current+ I, V, W are in parallel out electric current
When U, V, W are 1,0,1, U, W are in parallel into electric currentVMutually go out electric current- I,
When U, V, W are 1,1,0, U, V are in parallel into electric currentWMutually go out electric current- I,
Every kind of step mode, can read torque value by torque sensor, and the basic vector formed after being demarcated with product-
Torque form is contrasted, and judging angle, whether whether correct, motor basic parameter is normal.
Described basic vector-torque form, is the basic vector-torque form formed after product is demarcated, its form shape
Formula becomes initial angle θ for each rotation1, it is currentElectrical angle θ', current source vector IsOne torque value of correspondence；Obtained rotation change will be tested
Initial angle θ1, it is currentElectrical angleθ ', current source vector IsThe torque result and product read with torque sensorDo pairThan judging
Whether motor normal, can tentatively investigate through the above way the undetectable motor initial angle of inverter whether change,
The problems such as whether function fails.
Claims (4)
1. a kind of Portable electric automobile permagnetic synchronous motor device for detecting performance, it is characterised in that：Including torque sensor, block up
Rotary device, fastener, decoding current source, relay group, wherein the fastener is attached with measured body by bolt；
The locked-rotor device one end is first logical with the fastener again with measured body spline fitted, the other end through the fastener
Cross bolt and be attached and measured body bearing is fixed；Measured body is connected by the fastener and the locked-rotor device,
By the mutual cooperation of the torque sensor, the decoding current source and the relay group measure rotation become initial angle, it is current
Electrical angle, current source vector and actual torque value, result and product demarcation basic vector-torque form are done contrast and judge motor
It is whether normal.
2. Portable electric automobile permagnetic synchronous motor device for detecting performance according to claim 1, it is characterised in that：Institute
Decoding current source is stated, is that measured body leads to constant current, change relay group connected mode makes measured body produce 6 vector currents,
Different vector currents make rotor to different direction adhesives and can measure initial angle, as a result need to carry out angle according to adhesive situation
6 initial angles are measured result and are averaging, to improve initial angle measuring accuracy by degree compensation；Decode the decoding mould in current source
Block, is provided simultaneously with rotation and becomes decoding function, the current electrical angle of measured body can be measured in real time.
3. Portable electric automobile permagnetic synchronous motor device for detecting performance according to claim 1, it is characterised in that：Institute
Basic vector-torque form is stated, is basic vector-torque form for being formed after product demarcation, each rotation becomes initial angle, current electricity
Angle, current source vector one torque value of correspondence；To test obtained rotation become initial angle, current electrical angle, current source vector with
The torque result that torque sensor is read is contrasted with product, judges whether motor is normal, can tentatively arrange through the above way
Look into whether the undetectable motor initial angle of inverter changes, whether function fails.
4. Portable electric automobile permagnetic synchronous motor device for detecting performance according to claim 1, it is characterised in that：Institute
Locked-rotor device is stated, its end can carry out any change with tested attachment structure according to measured body bearing end form, so that even
Connect the permagnetic synchronous motor of different bearing end interfaces.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621117667.0U CN206440803U (en) | 2016-10-13 | 2016-10-13 | A kind of Portable electric automobile permagnetic synchronous motor device for detecting performance |
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| CN201621117667.0U CN206440803U (en) | 2016-10-13 | 2016-10-13 | A kind of Portable electric automobile permagnetic synchronous motor device for detecting performance |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109884523A (en) * | 2019-03-11 | 2019-06-14 | 重庆长安新能源汽车科技有限公司 | A kind of off-line test method and system of power drive system |
| CN110045279A (en) * | 2018-01-17 | 2019-07-23 | 深圳市优必选科技有限公司 | The torque of motor and proportionate relationship scaling method, system and the terminal device of electric current |
| CN111983448A (en) * | 2020-07-15 | 2020-11-24 | 东风电驱动系统有限公司 | Method and device for debugging rotary transformer zero position of driving motor |
| CN113433455A (en) * | 2021-06-24 | 2021-09-24 | 中国第一汽车股份有限公司 | Control method, device and medium for stalling test of permanent magnet synchronous motor for electric vehicle |
-
2016
- 2016-10-13 CN CN201621117667.0U patent/CN206440803U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110045279A (en) * | 2018-01-17 | 2019-07-23 | 深圳市优必选科技有限公司 | The torque of motor and proportionate relationship scaling method, system and the terminal device of electric current |
| CN110045279B (en) * | 2018-01-17 | 2021-06-29 | 深圳市优必选科技有限公司 | Method and system for calibrating proportional relation between torque and current of motor and terminal equipment |
| CN109884523A (en) * | 2019-03-11 | 2019-06-14 | 重庆长安新能源汽车科技有限公司 | A kind of off-line test method and system of power drive system |
| CN109884523B (en) * | 2019-03-11 | 2021-08-13 | 重庆长安新能源汽车科技有限公司 | Off-line detection method and system for electric drive system |
| CN111983448A (en) * | 2020-07-15 | 2020-11-24 | 东风电驱动系统有限公司 | Method and device for debugging rotary transformer zero position of driving motor |
| CN113433455A (en) * | 2021-06-24 | 2021-09-24 | 中国第一汽车股份有限公司 | Control method, device and medium for stalling test of permanent magnet synchronous motor for electric vehicle |
| CN113433455B (en) * | 2021-06-24 | 2024-03-26 | 中国第一汽车股份有限公司 | Control method, device and medium for locked rotor test of permanent magnet synchronous motor for electric vehicle |
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