CN206906551U - A kind of used in new energy vehicles electromechanical testing platform - Google Patents
A kind of used in new energy vehicles electromechanical testing platform Download PDFInfo
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- CN206906551U CN206906551U CN201720747661.XU CN201720747661U CN206906551U CN 206906551 U CN206906551 U CN 206906551U CN 201720747661 U CN201720747661 U CN 201720747661U CN 206906551 U CN206906551 U CN 206906551U
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- 238000012360 testing method Methods 0.000 title claims abstract description 37
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 20
- 230000008878 coupling Effects 0.000 claims abstract description 11
- 238000010168 coupling process Methods 0.000 claims abstract description 11
- 238000005859 coupling reaction Methods 0.000 claims abstract description 11
- 238000012544 monitoring process Methods 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims description 19
- 125000004122 cyclic group Chemical group 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 6
- 230000008859 change Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
It the utility model is related to electric vehicle motor technical field of measurement and test, specially a kind of used in new energy vehicles electromechanical testing platform, including dynamometer machine and tested motor, connected between the dynamometer machine and the tested motor by shaft coupling, the dynamometer machine is electrically connected to Dynamometer Control device, the tested motor is connected to tested motor controller, the Dynamometer Control device and the tested motor controller are electrically connected to dc source by DC/DC formula bidirectional DC power supplies, the dynamometer machine and the Dynamometer Control device are also electrically connected to control/monitoring system, the tested motor controller is also electrically connected to power analyzer, moment of torsion/velocity sensor is additionally provided between the dynamometer machine and the tested motor, moment of torsion/the velocity sensor is also electrically connected to the power analyzer, save the energy, test more accurate and effective.
Description
Technical field
Electric vehicle motor technical field of measurement and test is the utility model is related to, specially a kind of used in new energy vehicles electromechanical testing is put down
Platform.
Background technology
In recent years, as the enhancing of environmental consciousness and the input energetically of national policy, new-energy automobile are like a raging fire
Carry out, each motor corporation is all releasing new energy vehicle.Heart of the motor as new-energy automobile, carried for the operation of vehicle
For driving force, therefore, the normal operation of motor is most important to new-energy automobile, and its basic performance and control effect is straight
Connect and affect new-energy automobile performance indications.As can be seen here, the exploitation checking of motor, performance indications satisfaction etc. have to
To sufficient checking, it is necessary to a powerful electromechanical testing stand.It not only assists in developer and quickly finds to open
The problem of in hair, and can effectively solve the problem that problem；Verified by stand, the performance of motor can also be met to make effectively
Evaluation.
Current existing electromechanical testing stand, mainly there are following three directions on system construction：First, common DC bus knot
Structure.Dynamometer machine busbar voltage must be consistent with tested motor busbar voltage, and such a system architecture is functionally single, and there is one
Fixed limitation, the motors of different voltage class dynamometer machine and Dynamometer Control device in test can be caused to switch, to surveying
The human and material resources of work(machine resource and dismounting stand cause certain waste.2nd, feedback grid structure.Such a structure measurement of power
Machine system busbar voltage and tested motor system busbar voltage can be with inconsistent, and dynamometer system and tested motor system have respectively
Respective power supply, and power supply must be reversible, can be by the generated energy feedback grid of two electric systems.Although such a structure
The shortcomings that having abandoned structure one, voltage class can be with inconsistent, but recoverable power-supply system price is higher, is dc source
2-3 times, and this structure need to use two recoverable power-supply systems.Therefore, price is high the shortcomings that being this structure.3rd,
Resistance consumption structure.This structure is consistent with the framework of structure two, but in order to save cost, to the energy of two electric systems generatings
Amount is taken by way of resistance consumption, does not timely and effectively carry out feedback to energy, is a kind of greatly wave to electric energy
Take, run in the opposite direction with the new-energy automobile theory of energy-conserving and environment-protective.
Utility model content
The purpose of this utility model is to provide a kind of saving energy, more accurately and effectively used in new energy vehicles motor is surveyed for test
Try platform.
Above-mentioned technical purpose of the present utility model technical scheme is that：A kind of used in new energy vehicles electricity
Machine test platform, including dynamometer machine and tested motor, are connected between the dynamometer machine and the tested motor by shaft coupling,
The dynamometer machine is electrically connected to Dynamometer Control device, and the tested motor is connected to tested motor controller, the dynamometer machine control
Device processed and the tested motor controller are electrically connected to dc source, the dynamometer machine by DC/DC formula bidirectional DC power supplies
Control/monitoring system is also electrically connected to the Dynamometer Control device, the tested motor controller is also electrically connected to power
Analyzer, moment of torsion/velocity sensor, the moment of torsion/velocity sensor are additionally provided between the dynamometer machine and the tested motor
It is also electrically connected to the power analyzer.
In above-mentioned technical proposal, system architecture is using the recoverable energy common DC bus formula for meeting different voltage levels.
DC power system turns three-phase electrical source of power to be rectified into DC bus-bar voltage U1, and the U1 of DC power system output is directly inputted
Dynamometer Control device is given, U1 is the DC voltage of dynamometer system demand；U1 is converted into by DC/DC formula bidirectional DC power supplies
The DC voltage U2 of tested motor system requirements.Converted according to the voltage class of tested motor, DC/DC formula bidirectional DC power supplies are defeated
Go out voltage therewith to change, this power-supply system output voltage range is wider, effectively meets the voltage requirements of tested motor system.Cause
This, DC/DC formulas bidirectional DC power supply is as " the bidirectional energy bridge " in straight-flow system, in this motor testboard bay,
Abundant recycling is carried out to energy, the energy common DC bus of recovery supplies the use of another electric system, the energy of feedback
Amount will not cause any impact to power network.
As to of the present utility model preferred, the moment of torsion/velocity sensor is arranged on the shaft coupling.
As to of the present utility model preferred, the dc source is 380V high voltage power supplies.
As to of the present utility model preferred, the precision of the moment of torsion/velocity sensor is less than 0.5%FS.
As to of the present utility model preferred, the power analyzer is also electrically connected with the current sense for testing electric current
Device.
As to of the present utility model preferred, the test platform also includes by the tested motor controller and is tested electric
Machine and the cooling recirculation system set.
As to of the present utility model preferred, the cooling recirculation system includes constant temperature machine.
The beneficial effects of the utility model：Dynamometer machine and tested motor voltage class can be with inconsistent；To generation current not
It is to use conventional resistance consumption, but is done work and use by another system of common DC bus, has saved the energy；System cost
It is low；Stability is higher；The precision of test etc. is higher.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment.
In figure：1st, dynamometer machine, 2, tested motor, 3, shaft coupling, 10, Dynamometer Control device, 20, tested motor controller,
4th, dc source, 5, control/monitoring system, 6, power analyzer, 7, moment of torsion/velocity sensor, 8, cooling recirculation system, 81,
Constant temperature machine, 40, DC/DC formula bidirectional DC power supplies.
Embodiment
Specific examples below is only to explanation of the present utility model, and it is not to limitation of the present utility model, sheet
Art personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read,
But as long as all protected in right of the present utility model by Patent Law.
Embodiment, as shown in figure 1, a kind of used in new energy vehicles electromechanical testing platform, including dynamometer machine 1 and tested motor 2, institute
State and connected between dynamometer machine 1 and the tested motor 2 by shaft coupling 3, the dynamometer machine 1 is electrically connected to Dynamometer Control device
10, the tested motor 2 is connected to tested motor controller 20, the Dynamometer Control device 10 and the tested motor controller
20 are electrically connected to dc source 4, the dynamometer machine 1 and the Dynamometer Control device by DC/DC formulas bidirectional DC power supply 40
10 are also electrically connected to control/monitoring system 5, and the tested motor controller 20 is also electrically connected to power analyzer 6, the survey
Moment of torsion/velocity sensor 7 is additionally provided between work(machine 1 and the tested motor 2, the moment of torsion/velocity sensor 7 is also electrically connected to
The power analyzer 6.
Wherein, dynamometer machine 1, tested motor 2, shaft coupling 3, Dynamometer Control device 10, tested motor controller 20, DC/DC
Formula bidirectional DC power supply 40, dc source 4, control/monitoring system 5, power analyzer 6 and moment of torsion/velocity sensor 7 etc.
With using existing equipment.
Further optimization, the moment of torsion/velocity sensor 7 are arranged on the shaft coupling 3；The dc source 4 is
380V high voltage power supplies；The precision of the moment of torsion/velocity sensor 7 is less than 0.5%FS；
The power analyzer 6 is also electrically connected with the current sensor for testing electric current；The test platform also includes warp
The cooling recirculation system 8 crossed the tested motor controller 20 and tested motor 2 and set；The cooling recirculation system 8 includes
Constant temperature machine 81.
The introduction in the principle of some the application is first done below：
The shortcomings that the application has abandoned three schemes while above-mentioned three scheme advantages of prior art have been taken into account.Measurement of power
Machine and the voltage of tested motor can be with inconsistent；Change regardless of tested motor voltage class, dynamometer machine can be fixed always
Used on test platform；And when dynamometer machine and tested motor generate electricity, whole system energy can be passed through closed-loop dc
Operation, effective use of energy sources.
This motor testboard bay includes three parts, test system, control/monitoring system and cooling system.
Test system includes：Dynamometer machine and Dynamometer Control device, tested motor and tested motor controller, direct current
Source system, DC/DC (DC-DC) change type bidirectional DC power supply, power analyzer and current sensor.Dynamometer machine passes through
Shaft coupling and tested motor mechanically connect, in order to accurately detect the rotating speed of motor and moment of torsion, dynamometer machine and tested motor it
Between need install a moment of torsion/velocity sensor.Because the dynamic property economy of new energy car and the speed of torque of motor are direct
Correlation, therefore very high precision is just needed in the torque rotary speed performance parameter of stand checking motor, choice accuracy is less than 0.5%FS.
Dynamometer Control device and measurement of power mechatronics, tested motor controller electrically connect with tested motor.DC power system is measurement of power
Machine and tested motor provide power supply.In order that dynamometer machine voltage can be inconsistent with tested motor voltage class, in dc source
A DC/DC formula bidirectional DC power supply is equipped between system and tested motor controller, it has automatic bidirectional operation function,
There are two kinds of power supply, load characteristics simultaneously.Current sensor detection DC bus current and three-phase current, current sensor,
Moment of torsion/velocity sensor electrically connects with power analyzer, power analyzer according to the voltage of the bus of detection and three-phase, electric current,
Frequency, power factor etc. calculate the Real time Efficiency of tested motor system, and to waveform real-time display and harmonic wave are analyzed.
Control/monitoring system includes：Host computer and control software.Host computer is by CAN communication interface to test system
Critical piece issue instruction, meanwhile, test system can also be by CAN to host computer feedback control output result and each Account Dept
Part related status information.Such as：Host computer and high voltage power supply, Dynamometer Control device, tested motor controller and power analyzer
Instruction and feedback information can be issued.
Cooling system：Dynamometer machine and Dynamometer Control device cooling system, tested motor and tested motor controller are cold
But system.This set electromechanical testing stand mainly examines the performance of tested motor system, therefore dynamometer system cooling can be abundant
Cooling, it is necessary to given play to the over-all properties of dynamometer machine, the cooler environment of vehicle is simulated in the cooling of tested motor as far as possible, to tested electricity
The cooling flow of machine, chilling temperature are strictly controlled.In order to examine the performance of motor under limiting condition to meet situation, using perseverance
Warm water cold is controlled the inlet water temperature of motor and controller.
Lower mask body introduces a case;
System architecture is using the recoverable energy common DC bus formula for meeting different voltage levels.DC power system is three
Phase 380V electrical source of power turns to be rectified into DC bus-bar voltage U1, and the U1 of DC power system output is directly inputted to Dynamometer Control
Device, U1 are the DC voltage of dynamometer system demand；U1 is converted into tested motor system by DC/DC formula bidirectional DC power supplies
The DC voltage U2 of demand.Converted according to the voltage class of tested motor, DC/DC formula bidirectional DC power supply output voltages change therewith
Become, this power-supply system output voltage range is wider, effectively meets the voltage requirements of tested motor system.Therefore, DC/DC formulas are two-way
Dc source is as " the bidirectional energy bridge " in straight-flow system, in this motor testboard bay, being filled to energy
Divide and recycle, the energy common DC bus of recovery supplies the use of another electric system, and the energy of feedback will not be made to power network
Into any impact.
By taking electric system testing results as an example：
1. electric in all low-tension supplies of test system, control system, cooling system, each controller initial work.
2. cooling system constant temperature cooling-water machine works, the work of cooling system cooling water circulation.
3. high-tension electricity on high-voltage DC power supply and DC/DC formula bidirectional DC power supplies, voltage is sent to both by host computer
Instruction, sets high-voltage DC power supply output voltage as U1, DC/DC formula bidirectional DC power supplies output voltage is U2.
4. host computer instructs speed mode to be operated in a certain solid to dynamometer machine, control dynamometer machine by CAN transmission speeds
Determine rotating speed n, rotating speed is also n after tested motor is connected by shaft coupling, after feeding back to host computer velocity-stabilization and getting off, host computer
Torque command torque mode are sent to tested motor, according to
P=T*n/9550；
P --- power；
T --- moment of torsion；
Verify whether the peak torque peak speed under current rotating speed n meets design requirement.
5. tested motor system cooling circuit, constant temperature machine --- tested motor controller --- tested motor --- constant temperature
Machine.Constant temperature machine is set into the temperature of tested motor controller entrance as T1, tested motor outlet is into the temperature of constant temperature machine
T2, then, the heat dissipation capacity of tested motor system is according to can be calculated.
Q=Cm△T；
The specific heat of C --- water；
M --- quality；
△T=T2-T1；
During test run, if tested motor is operated in motoring condition, dynamometer machine is operated in generating state, electric current
Flow to as dynamometer machine that --- --- DC/DC formula bidirectional DC power supplies --- tested motor controller --- are tested for Dynamometer Control device
Motor；If dynamometer machine is operated in motoring condition, tested motor is operated in generating state, and the flow direction of electric current is tested motor --- quilt
Measured motor controller --- DC/DC formula bidirectional DC power supplies --- Dynamometer Control device --- dynamometer machine.
In whole service, high-voltage direct current (DC) power system needs only provide for the energy being lost in circuit, therefore, this power supply system
Uniting capacity can be smaller.
In whole test process, the foundation to tested motor and controller cooling circuit, can effectively monitor motor is
No to reach thermal balance, whether the instantaneous heat dissipation capacity of electric system, the performance indications of electric system meet design requirement.
Claims (7)
- A kind of 1. used in new energy vehicles electromechanical testing platform, it is characterised in that：Including dynamometer machine（1）And tested motor（2）, the survey Work(machine（1）With the tested motor（2）Between pass through shaft coupling（3）Connect, the dynamometer machine（1）It is electrically connected to dynamometer machine control Device processed（10）, the tested motor（2）It is connected to tested motor controller（20）, the Dynamometer Control device（10）With the quilt Measured motor controller（20）Pass through DC/DC formula bidirectional DC power supplies（40）It is electrically connected to dc source（4）, the dynamometer machine （1）With the Dynamometer Control device（10）Also it is electrically connected to control/monitoring system（5）, the tested motor controller（20） It is also electrically connected to power analyzer（6）, the dynamometer machine（1）With the tested motor（2）Between be additionally provided with moment of torsion/velocity pick-up Device（7）, the moment of torsion/velocity sensor（7）It is also electrically connected to the power analyzer（6）.
- A kind of 2. used in new energy vehicles electromechanical testing platform according to claim 1, it is characterised in that：Moment of torsion/the speed Sensor（7）It is arranged at the shaft coupling（3）On.
- A kind of 3. used in new energy vehicles electromechanical testing platform according to claim 1, it is characterised in that：The dc source （4）For 380V high voltage power supplies.
- A kind of 4. used in new energy vehicles electromechanical testing platform according to claim 1, it is characterised in that：Moment of torsion/the speed Sensor（7）Precision be less than 0.5%FS.
- A kind of 5. used in new energy vehicles electromechanical testing platform according to claim 1, it is characterised in that：The power analyzer （6）Also it is electrically connected with the current sensor for testing electric current.
- A kind of 6. used in new energy vehicles electromechanical testing platform according to claim 1, it is characterised in that：The test platform also wraps Include by the tested motor controller（20）And tested motor（2）And the cooling recirculation system set（8）.
- A kind of 7. used in new energy vehicles electromechanical testing platform according to claim 6, it is characterised in that：The cooling cyclic system System（8）Including constant temperature machine（81）.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720747661.XU CN206906551U (en) | 2017-06-26 | 2017-06-26 | A kind of used in new energy vehicles electromechanical testing platform |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720747661.XU CN206906551U (en) | 2017-06-26 | 2017-06-26 | A kind of used in new energy vehicles electromechanical testing platform |
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| CN206906551U true CN206906551U (en) | 2018-01-19 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110109439A (en) * | 2019-04-03 | 2019-08-09 | 贵州航天林泉电机有限公司 | A kind of test macro of New energy automobile motor and controller |
| CN110488800A (en) * | 2019-09-24 | 2019-11-22 | 南京越博电驱动***有限公司 | A kind of electric machine controller test macro and method |
| CN111766516A (en) * | 2020-07-14 | 2020-10-13 | 北京经纬恒润科技有限公司 | Direct current motor parameter calibration method and device |
| CN113030529A (en) * | 2021-04-07 | 2021-06-25 | 浙江工业大学 | Brushless motor test bench |
| CN113031673A (en) * | 2021-01-28 | 2021-06-25 | 浙江合众新能源汽车有限公司 | Temperature control method for pure electric vehicle driving system |
-
2017
- 2017-06-26 CN CN201720747661.XU patent/CN206906551U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110109439A (en) * | 2019-04-03 | 2019-08-09 | 贵州航天林泉电机有限公司 | A kind of test macro of New energy automobile motor and controller |
| CN110488800A (en) * | 2019-09-24 | 2019-11-22 | 南京越博电驱动***有限公司 | A kind of electric machine controller test macro and method |
| CN111766516A (en) * | 2020-07-14 | 2020-10-13 | 北京经纬恒润科技有限公司 | Direct current motor parameter calibration method and device |
| CN111766516B (en) * | 2020-07-14 | 2023-02-28 | 北京经纬恒润科技股份有限公司 | Direct current motor parameter calibration method and device |
| CN113031673A (en) * | 2021-01-28 | 2021-06-25 | 浙江合众新能源汽车有限公司 | Temperature control method for pure electric vehicle driving system |
| CN113031673B (en) * | 2021-01-28 | 2022-04-12 | 浙江合众新能源汽车有限公司 | Temperature control method for pure electric vehicle driving system |
| CN113030529A (en) * | 2021-04-07 | 2021-06-25 | 浙江工业大学 | Brushless motor test bench |
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