CN106092603A - The test system of a kind of power system of electric automobile and electric automobile - Google Patents
The test system of a kind of power system of electric automobile and electric automobile Download PDFInfo
- Publication number
- CN106092603A CN106092603A CN201610423414.4A CN201610423414A CN106092603A CN 106092603 A CN106092603 A CN 106092603A CN 201610423414 A CN201610423414 A CN 201610423414A CN 106092603 A CN106092603 A CN 106092603A
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- Prior art keywords
- battery
- hydroecium
- heat
- electric automobile
- vehicle mounted
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention discloses test system and the electric automobile of a kind of power system of electric automobile.Power system of electric automobile includes converter and the power motor being connected with converter, and test system includes: vehicle mounted dynamic battery, and the outfan of described vehicle mounted dynamic battery connects the input of converter；Heat management pipeline, for performing heat management to vehicle mounted dynamic battery；The quick charger being connected with vehicle mounted dynamic battery；The load motor being connected with power motor；Power analyzer, is connected respectively with the outfan of the outfan of vehicle mounted dynamic battery, the outfan of converter and power motor.The present invention uses vehicle mounted dynamic battery to replace special DC power supply, can reduce cost, and reduce installation workload.
Description
Technical field
The present invention relates to dynamic test technical field, particularly to test system and the electricity of a kind of power system of electric automobile
Electrical automobile.
Background technology
Energy shortage, oil crisis and environmental pollution grow in intensity, and bring tremendous influence, direct relation to the life of people
To national economy and the sustainable development of society.Countries in the world are all at active development new energy technology.Electric automobile is as one
Reduce consumption of petroleum, low stain, low noise new-energy automobile it is considered to be solve energy crisis and the important way of ecological deterioration
Footpath.Hybrid vehicle takes into account pure electric automobile and the advantage of traditional combustion engine automobile simultaneously, is meeting vehicle dynamic quality requirement
On the premise of requiring with continual mileage, it is effectively improved fuel economy, reduces discharge it is considered to be the most energy-conservation and subtract
One of active path of row.
The height of electric automobile conevying efficiency is heavily dependent on the dynamic property of automobile.Dynamic property is that electric automobile is each
Most basic and most important performance in item performance.The dynamical system of electric automobile is usually frequency conversion motor drive system, by frequency conversion
Device and power motor composition.This dynamical system is carried out emulation testing, needs extra load (electric dynamometer) to power current
Machine loads, and powers to power motor with programme controlled external direct current power supply, and measures the power condition of dynamical system
Analyze, power supply output, converter output and power motor output are carried out synchro measure, understands automobile power part and transport in reality
The ruuning situation of power-equipment and work efficiency during row.
In the prior art, when the dynamical system of electric automobile is tested, need to provide for tested power motor
By programme controlled special DC power supply.But, this mode has the drawback that
(1), the performance indications of special DC power supply must be fulfilled for all operating modes of electromechanical testing, more especially need wink
Between the extreme operating condition of high-power output, therefore cost is the highest.And, the electric distribution that special DC power supply installation and operation needs
(200KW need to be more than), it is added significantly to installation and operation cost further.
(2), the control software of special DC power supply needs to carry out communication, coordinated operation with vehicle control device.Therefore, the two
Between software interface, further increase the workload of software development.
Summary of the invention
In view of this, it is an object of the invention to provide test system and the electric automobile of a kind of power system of electric automobile,
Thus reduce cost and workload.
A kind of test system for testing power system of electric automobile, described power system of electric automobile includes converter
And the power motor being connected with described converter, described test system includes:
Vehicle mounted dynamic battery, the outfan of described vehicle mounted dynamic battery connects the input of described converter；
Heat management pipeline, for performing heat management to described vehicle mounted dynamic battery；
The quick charger being connected with described vehicle mounted dynamic battery；
The load motor being connected with described power motor；
Power analyzer, with the outfan of described vehicle mounted dynamic battery, the outfan of described converter and described power current
The outfan of machine connects respectively.
In one embodiment, described vehicle mounted dynamic battery includes multiple battery modules；Described vehicle mounted dynamic battery
Heat management pipeline includes: refrigerating circuit；
Heat treatment loop；
Heat exchanger, described heat exchanger is arranged between described refrigerating circuit and described heat treatment loop；At described heat
Reason loop includes: coolant major loop and be parallel to multiple branch lines of described coolant major loop respectively；Each branched pipe
Road includes the hydroecium of corresponding battery modules.
In one embodiment, described refrigerating circuit includes: evaporator assemblies；First electromagnetic valve；Compressor；Condenser
Assembly；Second electromagnetic valve；Described second water valve is connected with described heat exchanger, and described second water valve is also connected with described condenser group
Part and described first electromagnetic valve, described first electromagnetic valve connects described evaporator assemblies；Described evaporator assemblies is handed over described heat
Parallel operation connects.
In one embodiment, described coolant major loop includes: the 3rd electromagnetic valve；4th electromagnetic valve；5th electromagnetism
Valve；Pump；Positive temperature coefficient heater；Heater assembly；Heat sink assembly；Expansion drum；Described 3rd electromagnetic valve is handed over described heat
The entrance of parallel operation and each hydroecium connects；Described 4th electromagnetic valve is connected with the outlet of each hydroecium and described heater assembly；
Described positive temperature coefficient heater is connected with described pump and described heat exchanger；Described heater assembly is with described heat exchanger even
Connect；Described heat sink assembly is connected with described heat exchanger and described 5th electromagnetic valve；Described expansion drum and described radiator panel
Part and described heat exchanger connect.
In one embodiment, described battery modules, including:
Cell, described cell includes battery frame and the battery core unit being fixed in described battery frame；And
Heat abstractor, described heat abstractor includes: described hydroecium, and described hydroecium is fixed on one end of described battery frame；Lead
Hot plate, described heat-conducting plate has and the flat part of described battery core unit laminating, and the turn-up portion of described hydroecium of fitting, described flange
Portion is bent between described one end of described battery frame and described hydroecium from one end of described flat part；Foam, described foam is filled out
It is charged in the space between described turn-up portion and described one end of described battery frame.
In one embodiment, the bearing of trend of described hydroecium is vertical with the bearing of trend of described battery core unit；
Angle between described turn-up portion and described flat part is more than 90 °；
By described turn-up portion towards described in described battery frame when described hydroecium is fixed on described one end of described battery frame
One end extrudes, so that described foam generation elastic deformation produce the elastic force described turn-up portion extruded towards described hydroecium.
In one embodiment, described one end of described battery frame farther includes securing member, and described securing member is by institute
State hydroecium and be fixed on described one end of described battery frame；
Described securing member includes:
Draw-in groove, described draw-in groove is positioned at the side of described one end of described battery frame, with the side of hydroecium described in clamping；With
Elastic fastening hook, described elastic fastening hook is positioned at the opposite side of described one end of described battery frame, with hydroecium described in clamping
Opposite side.
In one embodiment, described quick charger includes positive pole, negative pole and battery management system output line,
The positive pole of described quick charger is connected with the positive pole of described vehicle mounted dynamic battery；The negative pole of described quick charger and described car
The negative pole carrying electrokinetic cell connects, the battery management system of described battery management system output line and each battery modules from
Controller input line connects.
In one embodiment, it is connected between the outfan and the input of described load motor of described power motor
There is torque sensor；
Described torque sensor, for providing power motor tach signal and power motor moment of torsion letter to power analyzer
Number.
A kind of electric automobile, this electric automobile includes testing as above system.
From technique scheme it can be seen that the power system of electric automobile of the application includes converter and connects with converter
The power motor connect, test system includes: vehicle mounted dynamic battery, and wherein the outfan of vehicle mounted dynamic battery connects the defeated of converter
Enter end；Heat management pipeline, for performing heat management to vehicle mounted dynamic battery；The quick charger being connected with vehicle mounted dynamic battery；
The load motor being connected with power motor；Power analyzer, with the outfan of vehicle mounted dynamic battery, the outfan of converter and dynamic
The outfan of force motor connects respectively.Visible, the present invention uses vehicle mounted dynamic battery to replace special DC power supply, can reduce into
This, and reduce installation workload.And, by configuring battery management system and quick charger for vehicle mounted dynamic battery, this
Invention can ensure that the working condition measurement of the high-power continuous discharge of electrokinetic cell system, is particularly suited for power system of electric automobile and surveys
Examination.
Further, the application is by passing through heat exchanger by the refrigerating circuit in the heat treatment loop of battery modules Yu automobile itself
Integrate mutually, it is achieved that the heat transmission method of effectively optimizing, it is achieved that vehicle-mounted for test for power system of electric automobile
In electrokinetic cell, the efficient control of each battery modules internal temperature, decreases the heat loss of system, significantly improves battery mould
The performance of group and life-span, accelerate automobile research progress.
It addition, the present invention is by the battery cell framework in battery modules in appropriate design vehicle mounted dynamic battery, radiating fin
Sheet and the structure of hydroecium and relative position relation, can accurately obtain the various data required for electric vehicle research and development.Further,
The present invention achieves the transmission of efficient system thermal with less system element, is possible not only to reduce system complexity, also may be used
To realize being adjusted flexibly, the most cost-effective.
Accompanying drawing explanation
The present invention is only schematically illustrated and explains by the following drawings, not delimit the scope of the invention.
Fig. 1 is the structure chart of the test system of power system of electric automobile in the present invention.
Fig. 2 is the structure chart of the heat management system of battery modules in the present invention.
Fig. 3 is the schematic diagram of battery modules in the present invention.
Fig. 4 is the schematic diagram of the heat management system of battery modules in the present invention.
Fig. 5 is the partial side view of the heat abstractor of existing cell.
Fig. 6 is the battery modules partial side view in one direction of the present invention.
Fig. 7 is the structural representation of the heat abstractor of the cell of the present invention.
Fig. 8 is the structural representation of the heat-conducting plate in the present invention.
Fig. 9 is the side view of the heat-conducting plate in the present invention.
Figure 10 is the heat abstractor partial side view in the other directions of the cell of the present invention.
Figure 11 be in the present invention battery modules fill schematic diagram soon.
Label declaration:
In FIG: vehicle mounted dynamic battery 101；Converter 102；Heat management pipeline 103；Quick charger 104；Power current
Machine 105；Load motor 106；Torque sensor 107；Power analyzer 108；Power system of electric automobile 201.
In fig. 2: refrigerating circuit 51；Heat treatment loop 52；Heat exchanger 53；Coolant major loop 54；Branch line 55；
Hydroecium 21；Evaporator assemblies 56；First electromagnetic valve V1；Condenser assembly 57；Second electromagnetic valve V2；3rd electromagnetic valve V3；4th
Electromagnetic valve V4；5th electromagnetic valve V5；Pump 58；Positive temperature coefficient heater 59；Heater assembly 60；Heat sink assembly 61, expands
Tank 62；Hydroecium entrance 63；Hydroecium outlet 64；Compressor 65.
In figure 3: hydroecium entrance 63；Hydroecium outlet 64；Hydroecium 21.
In the diagram, battery modules 30；Pump 58；Positive temperature coefficient heater 59；Heat sink assembly 61, expansion drum 62.
In Figure 5, cell 1；Battery frame 1a；Battery core unit 1b；Hydroecium 2；Heat-conducting plate 3；Flat part 3a；Turn-up portion
3b；Thermal conductive silicon rubber cushion 4；
In Fig. 6～Figure 10, cell 10；Battery frame 11；Battery core unit 12；Securing member 13；Draw-in groove 13a；Elastic card
Hook 13b；Heat abstractor 20；Hydroecium 21；Heat-conducting plate 22；Flat part 22a；Turn-up portion 22b；Angle between flat part and turn-up portion
α；Foam 23；Battery modules 30.
Detailed description of the invention
In order to technical characteristic, purpose and the effect of invention are more clearly understood from, the now comparison accompanying drawing explanation present invention
Detailed description of the invention, the most identical label represents identical part.
In this article, " schematically " expression " serves as example, example or explanation ", " should not show being described herein as
Meaning property " any diagram, embodiment be construed to a kind of preferred or more advantage technical scheme.
For making simplified form, each figure only schematically show part related to the present invention, and do not represent it
Practical structures as product.It addition, so that simplified form readily appreciates, some figure has the portion of identical structure or function
Part, only symbolically depicts one of them, or has only marked one of them.
In view of the various defects caused for tested power motor offer special DC power supply in prior art, the application provides
The low cost replacement scheme of a kind of applicable electric automobile motor test power supply, it is possible to utilize a set of one-tenth simpler, easy, low
Originally, high efficiency method, it is ensured that by measured motor in the case of departing from fixed DC power supply, utilize vehicle-mounted electrokinetic cell system
System, completes the test assignment of each operating mode, meets the demand of vehicle performance, and the research and development offer for electric automobile objectively depends in time
According to.
Fig. 1 is the structure chart of the test system of power system of electric automobile in the present invention.
As it is shown in figure 1, power system of electric automobile 201 includes that converter 102 and the outfan with converter 102 are connected
Power motor 105.Test system includes:
Vehicle mounted dynamic battery 101, wherein the outfan of vehicle mounted dynamic battery 101 connects the input of converter 102；
Heat management pipeline 103, for performing heat management to vehicle mounted dynamic battery 101；
The quick charger 104 being connected with vehicle mounted dynamic battery 101；
The load motor 106 being connected with power motor 105；
Power analyzer 108, with outfan, the outfan of converter 102 and the power motor of vehicle mounted dynamic battery 101
The outfan of 105 connects respectively.
Vehicle mounted dynamic battery 101 is for providing test electrical power for power motor 105.Converter 102 is to utilize electric power half
Power frequency supply is transformed to the electric energy control device of another frequency by the on-off action of conductor device, can realize power motor 105
Soft start, frequency control, raising running accuracy, change power factor, cross the function such as stream/overvoltage/overload protection.Load motor
106 (electric dynamometers) are used for loading to power motor 105, the state in simulated automotive actual motion.Whole dynamical system
Running part needs to measure its power condition analysis, the power analyzer 108 output to vehicle mounted dynamic battery 101
The output of amount, the output of converter 102 and power motor 105 carries out synchro measure, thus understands automobile power part and exist
The ruuning situation of power-equipment and work efficiency during actual motion.In one embodiment, at power motor 105 and load electricity
Torque sensor 107 is arranged between machine 106.Torque sensor 107, for providing as power motor to power analyzer 108
The power motor tach signal of 105 outputs and power motor torque signal.The concrete test process of power system of electric automobile
The present invention repeats no more.
Such as, vehicle mounted dynamic battery 101 may include that 8 lithium ion battery modules connected.Heat management pipeline 103 can
To include: battery modules coolant pipeline, coolant pump, cooling water radiator (band fan), coolant refrigerator, coolant add
Hot device, expansion drum and heat management control software etc..
Based on battery thermal management system 103, it is main that vehicle mounted dynamic battery 101 is adapted to each during electromechanical testing
Operating mode.Assuming that: threshold value 1 is the temperature intermediate value of the comfortable work of battery modules；Threshold value 2 is in the temperature of the comfortable work of battery modules
Limit；The limiting temperature upper limit that threshold value 3 normally works for battery modules；Threshold value 4 is to limit at a temperature of the comfortable work of battery modules；Threshold
The limiting temperature lower limit that value 5 normally works for battery modules.
(1) for low power discharge operating mode under room temperature condition
Vehicle mounted dynamic battery 101, when low power discharge, produces heat less, and temperature is not up to threshold value 1.Now, by cold
But liquid pump drives coolant circulation, and by heat from battery modules cooled liquid pipeline band to radiator, now radiator fan is not
Work.
(2) for power discharge operating mode middle under room temperature condition
In vehicle mounted dynamic battery 101 during power discharge, producing heat increases, and temperature reaches threshold value 1.Now, by coolant
Pump drives coolant circulation, and by heat from battery modules cooled liquid pipeline band to radiator, now radiator fan starts work
Make.
(3) for high power discharge operating mode under room temperature condition
During vehicle mounted dynamic battery 101 high power discharge, producing heat substantial increase, temperature reaches threshold value 2.Now, by cold
But liquid pump drives coolant circulation, and by heat from battery modules cooled liquid pipeline band to refrigerator, now refrigerator is by air-conditioning
The coolant of system carries out heat exchange.
(4) discharge under cryogenic conditions, operating mode of charging
When vehicle mounted dynamic battery 101 is in low temperature environment, internal resistance increases, and efficiency reduces.When battery temperature is less than threshold value 4
Time, coolant pump drive coolant circulation, by heat from coolant heater cooled liquid pipeline band to battery modules, to carry
High battery temperature.When battery temperature is higher than threshold value 4, heater quits work, and now battery temperature is produced by battery discharge, charging
Raw heat maintains.If shortage of heat is to maintain, battery temperature will restart again below threshold value 4, heater.
(5) discharge under extreme condition, operating mode of charging
When vehicle mounted dynamic battery 101 temperature is less than threshold value 5 or is higher than threshold value 3, system is notified that BMS cuts off electrokinetic cell
Output.Heater (less than threshold value 5) or refrigerator (higher than threshold value 3) simultaneously, and coolant pump carries out heat exchange, until
When battery temperature is higher than threshold value 4 or less than threshold value 2, notice battery management system recovers electrokinetic cell output.
Visible, by heat management 103, present invention can ensure that vehicle mounted dynamic battery 101 uses the survey of various load environment
Trial work condition.
Owing to power motor measurement condition is complicated, there will be the operating mode of continuous discharge high-power to electrokinetic cell system unavoidably
Test, high-power quick charge is the function that this battery system is indispensable, and therefore embodiment of the present invention is vehicle-mounted dynamic the most further
Quick charger 104 arranged by power battery 101.
In one embodiment, quick charger 104 includes positive pole, negative pole and battery management system output line,
The positive pole of quick charger 104 is connected with the positive pole of vehicle mounted dynamic battery 101；The negative pole of quick charger 104 and onboard power
The negative pole of battery 101 connects, in the battery management system output line of quick charger 104 and vehicle mounted dynamic battery 101
The battery management system of each battery modules connects from controller input line.
And, it is vehicle-mounted dynamic that embodiment of the present invention also provides in the test system of a kind of applicable power system of electric automobile
The heat management system of power battery.In embodiments of the present invention, the heat treatment of each battery modules in vehicle mounted dynamic battery is returned
The refrigerating circuit of road and automobile itself is integrated mutually by heat exchanger, it is achieved the heat transmission method of effectively optimizing.Ensure battery
Module can be under complex working condition (big multiplying power continues charge/discharge), and internal all battery cores are operated within the scope of reasonable temperature,
Maintain the temperature homogeneity of each battery core simultaneously, give full play to lithium ion battery than can big, have extended cycle life and self-discharge rate is low
Advantage, meet the demand of vehicle performance.
Fig. 2 is the structure chart of the heat management system of the battery modules of vehicle mounted dynamic battery in the present invention.
From Figure 2 it can be seen that this system includes:
Refrigerating circuit 51；
Heat treatment loop 52；
Heat exchanger 53, wherein heat exchanger 53 is arranged between refrigerating circuit 51 and heat treatment loop 52；Wherein at heat
Reason loop 52 includes: coolant major loop 54 and be connected respectively to multiple branch lines 55 of described coolant major loop 54；Often
Individual branch line 55 includes the hydroecium 21 of respective battery modules.
Wherein, occupant's air-conditioning refrigeration loop that refrigerating circuit 51 is had by automobile itself.By heat exchanger 53 by electricity
Refrigerating circuit 51 phase of the heat treatment loop 52 of pond module and automobile itself is integrated.Heat exchanger 53 is used for making heat from hot fluid
It is delivered to cold flow body, with the device of the technological requirement of satisfied regulation.Heat exchanger 53 can differently be classified, and operates by it
Process can be divided into dividing wall type, hybrid, heat accumulating type (or claiming back-heating type) three major types；Can be divided into compact by the compactness on its surface
Formula and non-close-coupled two class.
Specifically, refrigerating circuit 51 includes: the evaporator assemblies 56 being connected with heat exchanger 53；With evaporator assemblies 56 even
The the first electromagnetic valve V1 connect；The condenser assembly 57 being connected with heat exchanger 53；The second electromagnetic valve being connected with heat exchanger 53
V2, the second water valve V2 are also connected with condenser assembly 57 and the first electromagnetic valve V1.Evaporator assemblies 56 includes vaporizer and fan thereof；
Condenser assembly 57 includes condenser and fan thereof.
Heat treatment loop 52 includes: the 3rd electromagnetic valve V3 being connected with the entrance 63 of each hydroecium 21 and the 5th electromagnetic valve
V5；The pump 58 and the 4th electromagnetic valve V4 being connected with the outlet 64 of each hydroecium 21；The positive temperature coefficient (PTC) being connected with pump 58
Heater 59, this positive temperature coefficient heater 59 connects heat exchanger 53；The heater assembly 60 being connected with the 4th electromagnetic valve V4,
This heater assembly 60 connects heat exchanger 53；The heat sink assembly 61 being connected with heat exchanger 53, this heat sink assembly 61 is even
Meet the 5th electromagnetic valve V5；The expansion drum 62 being connected with heat sink assembly 61, this expansion drum 62 connects heat exchanger 53, wherein heats
Device assembly 60 includes heater and fan thereof；Heat sink assembly 61 includes radiator and fan thereof.
In the first operating mode, ptc heater 59 does not heats, and heat exchanger 3 is in refrigerating circuit 51 and heat treatment loop
Not playing heat exchange action among 52, now the 3rd electromagnetic valve V3 disconnects, and the 3rd electromagnetic valve V4 disconnects, and the 5th electromagnetic valve V5 connects.
Now, coolant flows out from the outlet (64) of hydroecium 21, respectively via pump 58, ptc heater 59, heat exchanger 53 and radiator
Assembly 61 returns the entrance 63 of hydroecium 21.In the first operating mode, heat sink assembly 61 cools down based on air at room temperature, performs battery mould
The heat sinking function of group.
In the second operating mode, ptc heater 59 does not heats, heat exchanger 3 in refrigerating circuit 51 and heat treatment loop 52 it
In play heat exchange action, and the first electromagnetic valve V1 disconnects, and the second electromagnetic valve V2 connects, the 3rd electromagnetic valve V3 connects, the 3rd electricity
Magnet valve V4 disconnects, and the 5th electromagnetic valve V5 disconnects.Now, the cold air that compressor 65 produces flows through heat friendship through the second electromagnetic valve V2
Parallel operation 53.Coolant flows out from the outlet 64 of hydroecium 21, returns via ptc heater 59, heat exchanger 53 and the 3rd electromagnetic valve V3
The entrance 63 of backwater room 21.In the second operating mode, refrigerating circuit 51 perform the heat sinking function of battery modules.
In the 3rd operating mode, ptc heater 59 heats, and heat exchanger 3 is in refrigerating circuit 51 and heat treatment loop 52
Among do not play heat exchange action, now the 3rd electromagnetic valve V3 connects, and the 4th electromagnetic valve V4 disconnects, and the 5th electromagnetic valve V5 disconnects.This
Time, coolant flows out from the outlet 64 of hydroecium 21, returns via pump 58, ptc heater 59, heat exchanger 53 and the 3rd electromagnetic valve V3
The entrance 63 of backwater room 21.In the 3rd operating mode, ptc heater 59 performs the heating function of battery modules.
Fig. 3 is the schematic diagram of battery modules in the present invention.Fig. 4 is the showing of the Heat transfer systems of battery modules in the present invention
It is intended to.In figs. 3 and 4, electrokinetic cell has 8 battery modules, has a hydroecium inside each battery modules.Hydroecium cools down
The import of liquid, outlet are furnished with snap joint, and by snap joint, flexible pipe, each hydroecium parallel connection accesses coolant main pipe rail.Cooling
Circulating pump, temperature, flow transducer, electric control water valve, radiator, refrigerator, heater, expansion tank etc. it is configured with on liquid main pipe rail
Device.
The heat management system of battery modules described in detail above.Visible, in embodiments of the present invention, by battery modules
The refrigerating circuit of heat treatment loop and automobile itself integrated mutually by heat exchanger, it is achieved the heat transmission side of effectively optimizing
Method.
It practice, heat management part hydroecium is also to affect heat management efficiency and quality with contacting of battery modules heat-conducting plate
Crucial.
Fig. 5 shows the partial side view of the heat abstractor of existing cell.As it is shown in figure 5, this cell 1
Heat abstractor includes hydroecium 2, heat-conducting plate 3 and thermal conductive silicon rubber cushion 4.Wherein, cell 1 includes battery frame 1a and is arranged on electricity
Battery core unit 1b in the frame 1a of pond, hydroecium 2 is fixed on one end of battery frame 1a, silicagel pad 4 be arranged on hydroecium 2 and battery frame 1a it
Between, thermal conductive silicon rubber cushion 4 is fitted hydroecium 2.Heat-conducting plate 3 includes the flat part 3a with battery core unit 1b laminating and and heat conductive silica gel
Turn-up portion 3b of pad 4 laminating, turn-up portion 3b be bent to from one end of flat part 3a one end of battery frame 1a and thermal conductive silicon rubber cushion 4 it
Between, a side of turn-up portion 3b is arranged on one end of battery frame 1a and is provided by supporting, another side laminating thermal conductive silicon
Rubber cushion 4.
Owing to heat-conducting plate 3 and hydroecium 2 are rigid structure, contact between the two mostly is linear contact lay, is therefore arranged on and leads
Thermal conductive silicon rubber cushion 4 between hot plate 3 and hydroecium 2 can fill the gap between hydroecium 2 and heat-conducting plate 3, increases thermal conductive contact face
Long-pending.But owing to the heat transfer efficiency of thermal conductive silicon rubber cushion 4 is limited, there is no the heat management efficiency that hydroecium 2 directly contacts with heat-conducting plate 3
Height, the heat management limited efficacy of the most this structure.
In order to solve heat-conducting plate and cell in prior art can not the technical problem of good contact, the invention provides
The heat abstractor of a kind of cell, it is able to ensure that the good contact of heat-conducting plate and cell.
Fig. 6 is the battery modules partial side view in one direction of the present invention.Fig. 7 is the cell of the present invention
The structural representation of heat abstractor.Shown in Fig. 6 and Fig. 7, present embodiments providing a kind of battery modules 30, it includes one
Or multiple cell 10, and the heat abstractor 20 for cell 10.Wherein, cell 10 include battery frame 11 with
And the battery core unit 12 in battery frame 11.
Heat abstractor 20 includes:
Hydroecium 21, hydroecium 21 is fixed on one end of battery frame 11；
Heat-conducting plate 22, heat-conducting plate 22, for the conduction of heat between battery core unit 12 and hydroecium 21, therefore combines shown in Fig. 7,
Heat-conducting plate 22 has and the flat part 22a of battery core unit 12 laminating, and turn-up portion 22b of laminating hydroecium 21.Wherein, turn-up portion
22b is bent between one end of battery frame 11 and hydroecium 21 from one end of flat part 22a；With
Foam 23, foam 23 is filled in the space between one end of turn-up portion 22b and battery frame 11.
Wherein, during hydroecium 21 can be arranged into the Heat transfer systems of the battery modules shown in Fig. 1.
As shown in Figure 6, in the present embodiment, heat-conducting plate 22 is directly contacted with hydroecium 21 by turn-up portion 22b, to guarantee
Enough conduction of heat ensured to greatest extent between battery core unit 12 and hydroecium 21.Have resilient foam 23 and be filled with turn-up portion
Space between one end of 22b and battery frame 11, thus provide the support force towards hydroecium 21 direction for heat-conducting plate 22, to ensure
Good contacting between heat-conducting plate 22 with hydroecium 21.
Further, shown in Fig. 6 and Fig. 9, the bearing of trend of hydroecium 21 is vertical with the bearing of trend of battery core unit 12,
Angle α between turn-up portion 22b and flat part 22a is more than 90 °, when hydroecium 21 is fixed on one end of battery frame 11, due to water
Room 21 and the laminating of turn-up portion 22b, turn-up portion 22b is extruded, so that foam 23 occurs by hydroecium 21 towards one end of battery frame 11
Elastic deformation, owing to foam 23 is filled in the space between one end of turn-up portion 22b and battery frame 11, therefore foam 23 can
Produce elastic force turn-up portion 22b extruded towards hydroecium 21.
If the angle α between turn-up portion 22b and flat part 22a is equal to 90 °, i.e. turn-up portion 22b is flat with hydroecium 21
OK, then contact to realize the laminating between turn-up portion 22b with hydroecium 21, need the highest between heat-conducting plate 22 and hydroecium 21
Very close to each other and good contact between installation accuracy guarantee turn-up portion 22b and hydroecium 21.And in the present embodiment, turn-up portion
Angle α between 22b and flat part 22a is more than 90 °, i.e. turn-up portion 22b tilts towards hydroecium 21.Then it is fixed to electricity at hydroecium 21
During one end of pond frame 11, owing to turn-up portion 22b tilts towards hydroecium 21, the inevitable one end towards battery frame 11 of hydroecium 21 extrudes turns over
Edge 22b so that it is moving towards one end of battery frame 11 to the position parallel with hydroecium 21, heat-conducting plate 22 is typically necessarily
Elastic metal material is made, and therefore turn-up portion 22b has the trend moved towards hydroecium 21 under elastically-deformable effect, from
And ensure the good contact of turn-up portion 22b and hydroecium 21.
Further, having resilient foam 23 owing to filling between one end of turn-up portion 22b and battery frame 11, it is for turning over
Edge 22b provides and supports, then towards the mobile extruding foam 23 of battery frame 11 and make it produce elastic deformation in turn-up portion 22b,
Therefore turn-up portion 22b is produced towards the elastic force of hydroecium 21 by foam 23, to be further ensured that the good of turn-up portion 22b and hydroecium 21
Contact.So, the elasticity of heat-conducting plate 22 self is caused due to the angle α between turn-up portion 22b and flat part 22a more than 90 °
Deformation and the elastic deformation of foam 23, the elastic force that these elastic deformations are provided ensure that turn-up portion 22b is real with hydroecium 21
The best plane-plane contact, to ensure maximum heat management efficiency.
Through test, the angle α between turn-up portion 22b and flat part 22a is 91 °.
As illustrated in fig. 7 and fig. 10, one end of battery frame 11 farther includes securing member 13, owing to hydroecium 21 is fixed on electricity
On one end of pond frame 11.Wherein, securing member 13 includes:
Draw-in groove 13a, draw-in groove 13a are positioned at the side of this end face of battery frame 11, with the side of clamping hydroecium 21；With
Elastic fastening hook 13b, elastic fastening hook 13b are positioned at the opposite side of this end face of battery frame 11, with another of clamping hydroecium 21
Side.
When hydroecium 21 being fixed to one end of battery frame 11, first the side of hydroecium 21 is held in draw-in groove 13a, i.e.
Draw-in groove 13a, around the side of hydroecium 21, moves hydroecium 21 then towards battery frame 11, makes the opposite side contact resilient card of hydroecium 21
Hook 13b also brings it about elastic deformation, and elastic fastening hook 13b produces along deviating from the elastic deformation on the direction of draw-in groove 13a so that
The opposite side of hydroecium 21 is held in elastic fastening hook 13b, i.e. elastic fastening hook 13b is around the opposite side of hydroecium 21, draw-in groove 13a and bullet
Distance between property grab 13b is consistent with the width of hydroecium 21.So, by hydroecium 21 is limited to draw-in groove 13a and elastic card
Hook 13b, and by draw-in groove 13a and elastic fastening hook 13b, the cincture of hydroecium 21 is limited hydroecium 21 along deviating from battery frame 11
Movement on direction, hydroecium 21 is fixed on one end of battery frame 11 by securing member 13.
Preferably, foam 23 is attached on this end face of battery frame 11 by gum, and is positioned at draw-in groove 13a and elastic fastening hook
Between 13b.
Electric automobile the most all has battery management system (BMS).BMS is to connect vehicle mounted dynamic battery and electric automobile
Important tie, its major function includes: battery physical parameter is monitored in real time；Battery status is estimated；Inline diagnosis and early warning；Fill,
Electric discharge controls with preliminary filling；Balanced management and heat management etc..The battery modules 30 that embodiment of the present invention proposes can be applied to
In various types of BMS.
Moreover, it is also possible to the battery modules 30 of vehicle mounted dynamic battery embodiment of the present invention proposed is applied to various types of
In the electric automobile of type, including pure electric automobile (BEV), hybrid vehicle (PHEV) or fuel cell car (FCEV), etc.
Deng.Certainly, how this battery modules 30 realizes the emphasis that installation in the car is not the present invention, and those skilled in the art are permissible
Implement this battery modules 30 installation in the car in any way, repeat no more herein.
Figure 11 be in the present invention battery modules fill schematic diagram soon.
As shown in figure 11, the vehicle mounted dynamic battery in the test system of power system of electric automobile includes 8 battery modules,
It is respectively battery modules 1, battery modules 2 ... battery modules 8.Vehicle mounted dynamic battery has battery management system master controller, and
And each battery modules is respectively provided with the battery management system of oneself from controller.Battery management system master controller includes monomer
Functional module and communication module, control module and the power modules such as the equilibrium of voltage detecting, monomer voltage, monomer temperature detection.
Communication module is connected from controller respectively with the battery management system of each battery modules.
Quick charger includes positive pole, negative pole and battery management system output line.The positive pole of quick charger and car
The positive pole carrying electrokinetic cell connects, and the negative pole of quick charger is connected with the negative pole of vehicle mounted dynamic battery, quick charger and control
Computer processed connects.The battery management system output line of quick charger and the battery management system of each battery modules from
Controller input line connects.Quick charger is also connected with the communication module in battery management system master controller.
Based on controlling the control signal input of computer, quick charger is by can be to choosing with the connection of communication module
One or more battery management systems send instruction from controller, quick to be chosen as the most one or more battery modules
Charging.Such as, when expectation is to battery modules 1 and battery modules 3 quick charge, quick charger is by the company with communication module
Connect to the battery management system corresponding to battery modules 1 from the battery management system corresponding to controller 1 and battery modules 3 from
Controller 3 sends charging instruction, and is battery modules 1 and battery modules 3 quick charge by the electric discharge of positive pole and negative pole.Cause
This, even if power motor measurement condition is complicated, the present invention is it is also ensured that the operating mode of the high-power continuous discharge of electrokinetic cell system
Test.
In sum, the power system of electric automobile of the application includes converter and the power motor being connected with converter,
Test system includes: vehicle mounted dynamic battery, and wherein the outfan of vehicle mounted dynamic battery connects the input of converter；Heat management pipe
Road, for performing heat management to vehicle mounted dynamic battery；The quick charger being connected with vehicle mounted dynamic battery；It is connected with power motor
Load motor；Power analyzer, with the outfan of vehicle mounted dynamic battery, the outfan of converter and the outfan of power motor
Connect respectively.The present invention uses vehicle mounted dynamic battery to replace special DC power supply, can reduce cost, and reduce installment work
Amount.
And, by configuring battery management system and special quick charger for vehicle mounted dynamic battery, the present invention is permissible
Ensure the working condition measurement of the high-power continuous discharge of electrokinetic cell system.
Further, the application is by passing through heat exchanger by the refrigerating circuit in the heat treatment loop of battery modules Yu automobile itself
Integrate mutually, it is achieved that the heat transmission method of effectively optimizing, it is achieved that inside each battery modules in vehicle mounted dynamic battery
The efficient control of temperature, decreases the heat loss of system, significantly improves performance and the life-span of battery modules, accelerate car load and open
The progress of sending out.
It addition, the present invention is by the structure of battery cell framework, radiating fin and hydroecium in appropriate design battery modules
And relative position relation, can accurately obtain the various data required for electric vehicle research and development.
Further, the present invention achieves the transmission of efficient system thermal with less system element, is possible not only to minimizing system
Complexity, it is also possible to realize being adjusted flexibly, the most cost-effective.
In this article, " one " is not offered as the quantity of relevant portion of the present invention being limited to " only this ", and " one
Individual " do not indicate that the situation of the quantity " more than one " getting rid of relevant portion of the present invention.
In this article, " on ", D score, "front", "rear", "left", "right", " interior ", " outward " etc. be only used for representing relevant portion
Between relative position relation, and the absolute position of these relevant portions non-limiting.
The a series of detailed description of those listed above is only for the feasibility embodiment of the present invention specifically
Bright, and and be not used to limit the scope of the invention, all without departing from the skill of the present invention equivalent embodiments made of spirit or
Change, as feature combination, split or repeat, should be included within the scope of the present invention.
Claims (10)
1. the test system being used for testing power system of electric automobile, it is characterised in that described power system of electric automobile
Including converter and the power motor that is connected with described converter, described test system includes:
Vehicle mounted dynamic battery, the outfan of described vehicle mounted dynamic battery connects the input of described converter；
Heat management pipeline, for performing heat management to described vehicle mounted dynamic battery；
The quick charger being connected with described vehicle mounted dynamic battery；
The load motor being connected with described power motor；
Power analyzer, with the outfan of described vehicle mounted dynamic battery, the outfan of described converter and described power motor
Outfan connects respectively.
Test system for testing power system of electric automobile the most according to claim 1, it is characterised in that described car
Carry electrokinetic cell and include multiple battery modules；The heat management pipeline of described vehicle mounted dynamic battery includes:
Refrigerating circuit；
Heat treatment loop；
Heat exchanger, described heat exchanger is arranged between described refrigerating circuit and described heat treatment loop；Described heat treatment returns
Road includes: coolant major loop and be parallel to multiple branch lines of described coolant major loop respectively；Each branch line bag
Include the hydroecium of corresponding battery modules.
Test system for testing power system of electric automobile the most according to claim 2, it is characterised in that described system
Cold loop includes: evaporator assemblies；First electromagnetic valve；Compressor；Condenser assembly；Second electromagnetic valve；Described second water valve with
Described heat exchanger connects, and described second water valve is also connected with described condenser assembly and described first electromagnetic valve, described first electricity
Magnet valve connects described evaporator assemblies；Described evaporator assemblies is connected with described heat exchanger.
Test system for testing power system of electric automobile the most according to claim 2, it is characterised in that described cold
But liquid major loop includes: the 3rd electromagnetic valve；4th electromagnetic valve；5th electromagnetic valve；Pump；Positive temperature coefficient heater；Heater group
Part；Heat sink assembly；Expansion drum；Described 3rd electromagnetic valve is connected with the entrance of described heat exchanger and each hydroecium；Described
Four electromagnetic valves are connected with the outlet of each hydroecium and described heater assembly；Described positive temperature coefficient heater and described pump and institute
State heat exchanger to connect；Described heater assembly is connected with described heat exchanger；Described heat sink assembly and described heat exchanger
Connect with described 5th electromagnetic valve；Described expansion drum is connected with heat sink assembly and described heat exchanger.
Test system for testing power system of electric automobile the most according to claim 2, it is characterised in that described electricity
Pond module includes:
Cell, described cell includes battery frame and the battery core unit being fixed in described battery frame；And
Heat abstractor, described heat abstractor includes: described hydroecium, and described hydroecium is fixed on one end of described battery frame；Heat-conducting plate,
Described heat-conducting plate has and the flat part of described battery core unit laminating, and the turn-up portion of described hydroecium of fitting, and described turn-up portion is certainly
One end of described flat part is bent between described one end of described battery frame and described hydroecium；Foam, described foam is filled extremely
In space between described turn-up portion and described one end of described battery frame.
Test system for testing power system of electric automobile the most according to claim 5, it is characterised in that described water
The bearing of trend of room is vertical with the bearing of trend of described battery core unit；
Angle between described turn-up portion and described flat part is more than 90 °；
By described turn-up portion towards described one end of described battery frame when described hydroecium is fixed on described one end of described battery frame
Extruding, so that described foam generation elastic deformation produce the elastic force described turn-up portion extruded towards described hydroecium.
Test system for testing power system of electric automobile the most according to claim 5, it is characterised in that described electricity
Described one end of pond frame farther includes securing member, and described hydroecium is fixed on described the one of described battery frame by described securing member
End；
Described securing member includes:
Draw-in groove, described draw-in groove is positioned at the side of described one end of described battery frame, with the side of hydroecium described in clamping；With
Elastic fastening hook, described elastic fastening hook is positioned at the opposite side of described one end of described battery frame, another with hydroecium described in clamping
Side.
Test system for testing power system of electric automobile the most according to claim 5, it is characterised in that described soon
Speed charger includes positive pole, negative pole and battery management system output line, and the positive pole of described quick charger is vehicle-mounted with described
The positive pole of electrokinetic cell connects；The negative pole of described quick charger is connected with the negative pole of described vehicle mounted dynamic battery, described battery
Management system signal output lead is connected from controller input line with the battery management system of each battery modules.
9. according to the test system for testing power system of electric automobile according to any one of claim 1-8, its feature
Being, being connected between the outfan and the input of described load motor of described power motor has torque sensor；
Described torque sensor, for providing power motor tach signal and power motor moment of torsion letter to described power analyzer
Number.
10. an electric automobile, it is characterised in that this electric automobile includes testing as claimed in claim 1 system.
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| CN106872177A (en) * | 2017-01-20 | 2017-06-20 | 湖北文理学院 | The dynamical system method of testing and system of a kind of new-energy automobile |
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| CN109100159A (en) * | 2018-09-06 | 2018-12-28 | 南京越博动力系统股份有限公司 | A kind of vehicle data monitoring and performance analysis system |
| CN109346802A (en) * | 2018-09-30 | 2019-02-15 | 蔚来汽车有限公司 | The humidity control system and method for power battery |
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| EP3598565A1 (en) * | 2018-07-19 | 2020-01-22 | Hyundai Motor Company | Battery heat management integration system and operation method thereof |
| CN111239603A (en) * | 2020-01-15 | 2020-06-05 | 沈阳工业大学 | Device and method for testing inductance of permanent magnet synchronous reluctance motor for electric vehicle |
| CN111855231A (en) * | 2020-07-28 | 2020-10-30 | 摩登汽车有限公司 | Operating method for calibrating thermal performance parameters of power system of new energy automobile |
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| CN111239603A (en) * | 2020-01-15 | 2020-06-05 | 沈阳工业大学 | Device and method for testing inductance of permanent magnet synchronous reluctance motor for electric vehicle |
| CN111239603B (en) * | 2020-01-15 | 2022-02-08 | 沈阳工业大学 | Device and method for testing inductance of permanent magnet synchronous reluctance motor for electric vehicle |
| CN111855231A (en) * | 2020-07-28 | 2020-10-30 | 摩登汽车有限公司 | Operating method for calibrating thermal performance parameters of power system of new energy automobile |
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