CN105742736B - The heat management experimental rig and method of a kind of electric automobile power battery - Google Patents
The heat management experimental rig and method of a kind of electric automobile power battery Download PDFInfo
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- CN105742736B CN105742736B CN201610197182.5A CN201610197182A CN105742736B CN 105742736 B CN105742736 B CN 105742736B CN 201610197182 A CN201610197182 A CN 201610197182A CN 105742736 B CN105742736 B CN 105742736B
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- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
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- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4285—Testing apparatus
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- 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
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Abstract
The invention provides the heat management experimental rig and method of a kind of electric automobile power battery, the technical scheme is that the environment storehouse of the experiment of existing thermal management scheme is substituted using insulating box, it is not required to vehicle being placed in environmental chamber, and electrokinetic cell is only placed in progress heat management experiment in insulating box, to obtain the control strategy and parameter of the battery bag heat management under round-the-clock temperature environment, compared with the experiment formulating method of existing thermal management scheme, test efficiency of the present invention is higher, and because vehicle need not be placed in environmental chamber, therefore experimentation cost is also greatly reduced.In addition, because it need not be together placed in vehicle in environmental chamber, carried out simultaneously so the solution of the present invention can be designed and manufactured with vehicle complete vehicle, it is not necessary to tested again after vehicle is fully completed manufacture, and then also improve entire vehicle design, production, the whole efficiency of detection.
Description
Technical field
The present invention relates to the heat management experiment dress in electrokinetic cell field, more particularly to a kind of electric automobile power battery
Put and method.
Background technology
The advantages that new-energy automobile saves the energy, non-environmental-pollution with it has become the new direction of industry development.It is electronic
Automobile is the important development field in new-energy automobile.For electric automobile, the technology of its core focuses mostly in its power
On battery, the research and development of the demands such as continuation of the journey accordingly, with respect to electric automobile power battery, environment adapt to also positive propulsion it
In.
Electric automobile will be operated under round-the-clock temperature environment, and its electrokinetic cell must adapt to wanting for round-the-clock running
Ask, therefore a good electric automobile must carry out effective heat management to electrokinetic cell, so for electric automobile, it is excellent
Good battery bag is typically necessary outfit heat management system, to meet the round-the-clock normal operation of electrokinetic cell.
In electric automobile, heat management system carries regulation temperature of powered cell, and then is allowed to run on good section
Task, and then be particularly important suitable for the formulation of thermal management policy of round-the-clock running.The system of existing thermal management scheme
The fixed general heating needs for all considering cold winter, and the heat management control method of torridity summer operating mode is typically exactly to exceed temperature
Degree takes the method that alarm is stopped, and this good operation for electrokinetic cell is far from being enough.And some thermal management schemes
Test formulating method be that vehicle is put into environment storehouse to carry out, this method undoubtedly cause cost height, it is once not all right will be repeatedly
The problems such as repeatedly carrying out the adjustment of thermal management scheme, and test efficiency is low.
The content of the invention
It is existing to solve it is an object of the invention to provide the heat management experimental rig and method of a kind of electric automobile power battery
The problem of heat management test efficiency of some automobile power cells is low, and experimentation cost is high.The present invention is just for spring, summer, autumn and winter four
Under season weather, the experiment of the thermal management scheme formulating method under stationary vehicle parking operating mode, the experiment of other operating conditions can be joined
It is admitted to row.
A kind of heat management experimental rig of electric automobile power battery, including：
Heat conduction hydroecium, the heat conduction hydroecium are attached at the electric automobile power battery by fin；
Thermal management unit, the thermal management unit provide heat to tie up by coolant endless form to the heat conduction hydroecium
Hold the thermal balance of the electric automobile power battery；
Temperature collecting cell, the temperature collecting cell are adopted to the real time temperature of the electric automobile power battery
Collection；
Insulating box, heat conduction hydroecium and electric automobile power battery described in the insulating box inner containment, with to described electronic
Automobile power cell provides constant environment temperature；And
Control unit, described control unit is electrically connected in the thermal management unit and temperature collecting cell, with to institute
State thermal management unit to be controlled, and under the steady temperature that the insulating box remains different respectively, determine the electric automobile
Electrokinetic cell reaches heat management parameter during equalized temperature.
Further, the heat management parameter includes：
The electric automobile power battery reaches time used in equalized temperature, the electric automobile power battery thermal balance
When the power that is consumed during experiment of temperature, coolant rate and the thermal management unit.
Further, the power that the thermal management unit is consumed during experiment includes：
Instantaneous power and Mean Input Power of the thermal management unit provided in experiment process.
Further, the thermal management unit includes：
Coolant cycling element, the coolant cycling element are connected to the heat conduction hydroecium with into the heat conduction hydroecium
It is passed through and exports thermal cycle liquid；
Heating unit, the heating unit are installed on the coolant cycling element and are electrically connected to described control unit,
To be heated under the control of described control unit to the thermal cycle liquid in the coolant cycling element；
Refrigeration unit, the refrigeration unit are installed on the coolant cycling element and are electrically connected to described control unit,
To freeze under the control of described control unit to the coolant in the coolant cycling element.
Further, the temperature collecting cell includes：
At least one temperature sensor, at least one temperature sensor are respectively arranged in the electric powered motor electricity
The surface in pond everywhere, at the battery pole ear of the electric automobile power battery, the surface of the heat conduction hydroecium everywhere, insulating box
In casing and the opening position away from the electric automobile power battery and the heat conduction hydroecium are connected to the coolant circulation
The water outlet and water inlet of unit；
Temperature sampler, the Temperature sampler are electrically connected at least one temperature sensor, and the temperature
Collector is also electrically coupled to described control unit, and the Temperature sampler collects what at least one temperature sensor was gathered
Temperature is simultaneously transferred to described control unit.
Further, described control unit is by controlling the heating unit and refrigeration unit with to flowing through the heating unit
Stationary temperature is set with the coolant after refrigeration unit；Also, described control unit controls the Temperature sampler collection simultaneously
The temperature value of each temperature sensor is recorded, while records the water outlet of test period, coolant rate and the heat conduction hydroecium
The temperature of temperature and water inlet at mouthful.
The heat management test method of a kind of electric automobile power battery, using the electric powered motor described in as above any one
The heat management experimental rig of battery, methods described include：
Step 1, calorstat temperature is set as to initial value T0, and all parts for making to be in the insulating box stand one
The section time, so that the temperature of all parts in insulating box reaches the initial value T0；
Step 2, calorstat temperature is set as T1, while the thermal management unit is opened, set and control the coolant
Temperature be A；
Step 3, at the trial between in section t, the temperature of the electric automobile power battery is continued to monitor, if monitored
The temperature of electric automobile power battery is less than critical-temperature Tc, then stop experiment, record the disengaging of test period and heat conduction hydroecium
Mouth of a river temperature and fluid flow；Otherwise, when continuing to monitor t durations, and recording the electric automobile power battery and reach thermal balance
Time when reaching thermal balance of temperature, the electric automobile power battery, the electric automobile power battery reach thermal balance
When heat conduction hydroecium water outlet and water inlet temperature and flow；
Step 4, the instantaneous power for calculating the experiment of this heat management, and calculate Mean Input Power；
Step 5, under conditions of setting and controlling the temperature of the coolant as B, repeat step 1 to step 4；
Step 6, under conditions of setting and controlling the temperature of the coolant as C, repeat step 1 to step 4；
Step 7, by calorstat temperature T1It is set as multiple different temperatures values successively, so that the insulating box is simulated not respectively
Same environment temperature, and repeat step 1 is reached to step 6 with testing out the electric automobile power battery at different ambient temperatures
To heat management parameter during equalized temperature.
Further, the instantaneous power of heat management experiment is calculated by following formula：
P1=cL ρ Δs T/60
Wherein, P1For the instantaneous power inputted required for heat management, unit kW；C is the specific heat of coolant, and unit is
kJ/(kg·℃)；L be coolant flow, unit l/min；ρ is coolant density, unit kg/L；Δ T is heat-conductive water
The inlet and outlet temperature difference of room, unit are DEG C.
Further, Mean Input Power is calculated by following formula：
Wherein：P2For Mean Input Power；P (i) is the instantaneous work(of input required for the heat management in each sampling period
Rate, n are the sampling number within the test period.
Further, T0For 20 DEG C~35 DEG C；T1Setting be respectively -40 DEG C, -30 DEG C, -20 DEG C, -10 DEG C, 0 DEG C, 10 DEG C, 20
DEG C, 30 DEG C, 40 DEG C, 50 DEG C and 60 DEG C；TcFor 0 DEG C；A is 10 DEG C, B is 20 DEG C, C is 30 DEG C.
From such scheme as can be seen that in the heat management experimental rig of the electric automobile power battery of the present invention and method,
The environment storehouse of the experiment of existing thermal management scheme is substituted using insulating box, without vehicle is placed in environmental chamber, only will
Electrokinetic cell is placed in progress heat management experiment in insulating box, to obtain the control of the battery bag heat management under round-the-clock temperature environment
Strategy and parameter, compared with the experiment formulating method of existing thermal management scheme, test efficiency of the present invention is higher, and because not
Need vehicle being placed in environmental chamber, therefore also greatly reduce experimentation cost.In addition, because need not together it be put with vehicle
In environmental chamber, carried out simultaneously so the solution of the present invention can be designed and manufactured with vehicle complete vehicle, it is not necessary to treat vehicle whole
Tested again after completing manufacture, and then also improve entire vehicle design, production, the whole efficiency of detection.
The heat management experimental rig and method of the above-mentioned electric automobile power battery of the present invention, can simulate electric automobile
Electrokinetic cell is after travelling after a while, the bar that is statically placed in parking stall under different temperature environments and opens heat management system
Under part, if enable to electric automobile power battery to reach optimum performance state and can smoothly start, and then search out optimal
The coolant temperature of heat management, so that it is determined that the thermal management scheme of the electric automobile power battery gone out under various temperature environment.This
Scheme of the invention can facilitate the startup and operation of electric automobile under simulation spring, summer, autumn and winter round-the-clock environment, to finding optimal electricity
The thermal management policy of electrical automobile electrokinetic cell, the temperature control of management and control electric automobile power battery, and then to the peace of electric automobile
Full property and runnability have important practical significance.
Brief description of the drawings
The following drawings only does schematic illustration and explanation to the present invention, not delimit the scope of the invention.
Fig. 1 is the heat management experimental rig constructive embodiment schematic diagram of the electric automobile power battery of the present invention；
Fig. 2 is the arrangement of temperature sensor 32 in the heat management experimental rig of the electric automobile power battery of the present invention
Embodiment schematic diagram；
Fig. 3 is the heat management test method embodiment flow chart of the electric automobile power battery of the present invention.
Label declaration
1st, heat conduction hydroecium
11st, fin
2nd, thermal management unit
21st, coolant cycling element
22nd, heating unit
23rd, refrigeration unit
3rd, temperature collecting cell
31st, Temperature sampler
32nd, temperature sensor
4th, insulating box
5th, control unit
9th, electric automobile power battery
Embodiment
In order to which the technical characteristic of invention, purpose and effect are more clearly understood, now control brief description of the drawings is of the invention
Embodiment, in the various figures identical label represent identical part.
Herein, " schematic " expression " serving as example, example or explanation ", will should not be described herein as " showing
Any diagram, the embodiment of meaning property " are construed to a kind of preferred or more advantageous technical scheme.
To make simplified form, part related to the present invention is only schematically show in each figure, and do not represent it
Practical structures as product.In addition, so that simplified form readily appreciates, there is the portion of identical structure or function in some figures
Part, one of those is only symbolically depicted, or only marked one of those.
Herein, "one" is not offered as the quantity of relevant portion of the present invention being limited to " only this ", and " one
It is individual " do not indicate that the situation of the quantity " more than one " for excluding relevant portion of the present invention.
Herein, " first ", " second " etc. are only used for mutual differentiation, rather than represent significance level and order and
Existing premise etc. each other.
Herein, the limitation in " equal ", " identical " etc. and non-critical mathematics and/or geometry meaning, is also included
It will be appreciated by those skilled in the art that and manufacture or the error for the permission such as using.Unless otherwise indicated, numerical value model herein
The gamut not only included in two end points is enclosed, also includes being contained in some subranges therein.
As shown in figure 1, the heat management experimental rig of the electric automobile power battery provided in the embodiment of the present invention, including lead
Hot hydroecium 1, thermal management unit 2, temperature collecting cell 3, insulating box 4 and control unit 5.Wherein, the heat conduction hydroecium 1 is by dissipating
Backing 11 is attached at electric automobile power battery 9, and the thermal management unit 2 is by coolant endless form to the heat conduction hydroecium
1 provides heat to maintain the thermal balance of the electric automobile power battery 9.The temperature collecting cell 3 is to the electric automobile
The real time temperature of electrokinetic cell 9 is acquired.Heat conduction hydroecium 1 and electric powered motor described in the inner containment of the insulating box 4
Battery 9, the insulating box 4 to the electric automobile power battery 9 providing constant environment temperature.Described control unit 5
It is electrically connected and the thermal management unit 2 is carried out in the thermal management unit 2 and temperature collecting cell 3, described control unit 5
Control, and in the case where the insulating box 4 maintains different steady temperatures respectively, determine that the electric automobile power battery 9 reaches temperature
Heat management parameter during degree balance.Wherein, described in described control unit 5 is gathered and determined by the temperature collecting cell 3
The temperature of electric automobile power battery 9, and then determine whether the electric automobile power battery 9 reaches equalized temperature, Jin Er
The electric automobile power battery 9 determines the heat management parameter of the electric automobile power battery 9 when reaching equalized temperature, on
The determination of heat management parameter can refer to follow-up explanation.In the embodiment of the present invention, the heat management parameter includes the electric automobile
Temperature, coolant when electrokinetic cell 9 reaches time used in equalized temperature, 9 thermal balance of electric automobile power battery
Power that circular flow, thermal management unit 2 are consumed during experiment (including thermal management unit 2 provides during experiment
Instantaneous power and the coolant temperature that is provided during experiment of Mean Input Power and thermal management unit 2 etc..
With continued reference to shown in Fig. 1, in the embodiment of the present invention, the thermal management unit 2 includes coolant cycling element 21, added
Hot cell 22 and refrigeration unit 23.Wherein, the coolant cycling element 21 is connected to heat conduction hydroecium 1 with guide hot hydroecium 1
It is passed through and exports the circulating liquid of the coolant of thermal cycle.The heating unit 22 is installed on coolant cycling element 21 and is electrically connected
Be connected to described control unit 5, with the control of described control unit 5 to the thermal cycle that is carried out in coolant cycling element 21
Coolant is heated.The refrigeration unit 23 is installed on coolant cycling element 21 and is electrically connected to described control unit 5, with
The coolant of thermal cycle under the control of described control unit 5 to being carried out in coolant cycling element 21 is freezed.
Shown in referring also to Fig. 1 and Fig. 2, in the embodiment of the present invention, the temperature collecting cell 3 includes Temperature sampler 31
With at least one temperature sensor 32.Wherein, at least one temperature sensor 32 is respectively arranged in the electric automobile and moved
Everywhere, at least one temperature sensor 32 is also respectively arranged in the electric automobile power battery 9 on the surface of power battery 9
At battery pole ear, at least one temperature sensor 32 is also respectively arranged in the surface of the heat conduction hydroecium 1 everywhere, it is described extremely
A few temperature sensor 32 is also respectively arranged in the casing of insulating box 4 and away from the electric automobile power battery (9)
Opening position, at least one temperature sensor 32 are also respectively arranged in the heat conduction hydroecium 1 and are connected to the coolant circulation
The water outlet and water inlet of unit 21, in addition, at least one temperature sensor 32 is also respectively arranged in fin 11
Everywhere.The Temperature sampler 31 is electrically connected at least one temperature sensor 32, and the Temperature sampler 31 is also
Described control unit 5 is electrically connected to, the Temperature sampler 31 collects the temperature that at least one temperature sensor 32 is gathered
Spend and be transferred to described control unit 5.
In the embodiment of the present invention, described control unit 5 is by controlling the heating unit 22 and refrigeration unit 23 with convection current
Coolant setting stationary temperature after the heating unit 22 and refrigeration unit 23；Also, described control unit 5 controls institute
State the temperature value that Temperature sampler 31 gathers and records each temperature sensor 32, at the same record test period, coolant rate,
And the temperature of water outlet and the temperature of water inlet of the heat conduction hydroecium 1.Control unit 5 is for example provided with corresponding function
The computer of software is able to carry out single-chip microcomputer of corresponding function etc..
Heat management experimental rig based on above-mentioned electric automobile power battery, the embodiment of the present invention also provide one kind simultaneously
The heat management test method of electric automobile power battery, as shown in figure 3, this method comprises the following steps：
Step 1, the temperature of insulating box 4 is set as initial value T0, and all parts for making to be in the insulating box 4 are stood
For a period of time, so that the temperature of all parts in insulating box 4 reaches the initial value T0；This step 1 is to simulate electricity
Electrical automobile after the traveling mileage of one day, park and be statically placed in garage, the internal temperature of electrokinetic cell；
Step 2, the temperature of insulating box 4 is set as T1, while the thermal management unit 2 is opened, set and control the cooling
The temperature of liquid is A；This step 2 is that to simulate electric automobile to be statically placed in garage temperature be T1Ambient condition under, open heat pipe
The situation of reason system；
Step 3, at the trial between in section t, the temperature of the electric automobile power battery 9 is continued to monitor, if monitored
The temperature of electric automobile power battery 9 be less than critical-temperature Tc, then stop experiment, record test period and heat conduction hydroecium 1
Intake-outlet temperature and fluid flow；Otherwise, t durations are continued to monitor, and records the electric automobile power battery 9 and reaches hot flat
Time, the electric automobile power battery 9 when temperature, the electric automobile power battery 9 during weighing apparatus reach thermal balance reach
The temperature and flow of the water outlet of heat conduction hydroecium 1 and water inlet during thermal balance；In this step 3, critical-temperature TcLess than electronic
Automobile starting or the requirement of charging；
Step 4, the instantaneous power for calculating the experiment of this heat management, and calculate Mean Input Power；
Step 5, under conditions of setting and controlling the temperature of the coolant as B, repeat step 1 to step 4；
Step 6, under conditions of setting and controlling the temperature of the coolant as C, repeat step 1 to step 4；
Step 7, by the temperature T of insulating box 41It is set as multiple different temperatures values successively, so that the insulating box 4 is simulated respectively
Varying environment temperature, and repeat step 1 is to step 6, to test out the electric automobile power battery 9 at different ambient temperatures
Reach heat management parameter during equalized temperature.
Wherein, the instantaneous power of heat management experiment is calculated by following formula：
P1=cL ρ Δs T/60
Wherein, P1For the instantaneous power inputted required for heat management, unit is kW (kilowatt)；C is the specific heat of coolant, single
Position is kJ/ (kg DEG C) (kilojoule/(kilogram degree Celsius))；L is the flow of coolant, and unit is l/min (1/ minute)；ρ is
Coolant density, unit are kg/L (kg/liter)；Δ T is the inlet and outlet temperature difference of heat conduction hydroecium 1, and unit is DEG C (degree Celsius).Cause
Unit for L is l/min, and the unit of power is W or kW, i.e. joule/second or kilojoule/second, so the unit of minute is turned
Change the second into, therefore, in the instantaneous power calculation formula of above-mentioned heat management experiment will divided by 60.
Mean Input Power is calculated by following formula：
Wherein：P2For Mean Input Power；P (i) is the instantaneous work(of input required for the heat management in each sampling period
Rate, i.e. P (i) are the P in each sampling period1, n is the sampling number within the test period.
In the embodiment of the present invention, T0It may be set to 20~35 DEG C, such as 20 DEG C, 25 DEG C, 30 DEG C or 35 DEG C, T1Set example
As being respectively -40 DEG C, -30 DEG C, -20 DEG C, -10 DEG C, 0 DEG C, 10 DEG C, 20 DEG C, 30 DEG C, 40 DEG C, 50 DEG C and 60 DEG C, the stagnation temperature
Spend TcFor 0 DEG C, A is 10 DEG C, B is 20 DEG C, C is 30 DEG C.T1The setting range of temperature take into account round-the-clock weather throughout the year
Environment.
In the embodiment of the present invention, a length of not set time length during t, it mainly reaches heat with electric automobile power battery 9
The time correlation of balance.
Embodiment flow after the above method is fully deployed is as follows：
Step a1, calorstat temperature is set as initial value T0(any one temperature value in 20~35 DEG C), and make place
All parts in the insulating box stand a period of time, so that the temperature of all parts in insulating box reaches described first
Initial value T0, afterwards into step a2；
Step a2, calorstat temperature is set as -40 DEG C, while opens the thermal management unit, is set and is controlled described cold
But the temperature of liquid is 10 DEG C, afterwards into step a3；
Step a3, at the trial between in section t, the temperature of the electric automobile power battery is continued to monitor, if monitored
The temperature of electric automobile power battery be less than 0 DEG C of critical-temperature, then stop experiment, otherwise, continue to monitor t durations, and record
When temperature, the electric automobile power battery when electric automobile power battery reaches thermal balance reach thermal balance when
Between, electric automobile power battery temperature and flow of heat conduction hydroecium water outlet and water inlet when reaching thermal balance, it
Enter step a4 afterwards；
Step a4, the instantaneous power of this heat management experiment is calculated, and calculates Mean Input Power, afterwards into step
b1；
Step b1, calorstat temperature is set as initial value T0, and all parts for making to be in the insulating box are stood
For a period of time, so that the temperature of all parts in insulating box reaches the initial value T0, afterwards into step b2；
Step b2, calorstat temperature is set as -40 DEG C, while opens the thermal management unit, is set and is controlled described cold
But the temperature of liquid is 20 DEG C, afterwards into step b3；
Step b3, at the trial between in section t, the temperature of the electric automobile power battery is continued to monitor, if monitored
The temperature of electric automobile power battery be less than 0 DEG C of critical-temperature, then stop experiment, otherwise, continue to monitor t durations, and record
When temperature, the electric automobile power battery when electric automobile power battery reaches thermal balance reach thermal balance when
Between, electric automobile power battery temperature and flow of heat conduction hydroecium water outlet and water inlet when reaching thermal balance, it
Enter step b4 afterwards；
Step b4, the instantaneous power of this heat management experiment is calculated, and calculates Mean Input Power, afterwards into step
c1；
Step c1, calorstat temperature is set as initial value T0, and all parts for making to be in the insulating box are stood
For a period of time, so that the temperature of all parts in insulating box reaches the initial value T0, afterwards into step c2；
Step c2, calorstat temperature is set as -40 DEG C, while opens the thermal management unit, is set and is controlled described cold
But the temperature of liquid is 30 DEG C, afterwards into step c3；
Step c3, at the trial between in section t, the temperature of the electric automobile power battery is continued to monitor, if monitored
The temperature of electric automobile power battery be less than 0 DEG C of critical-temperature, then stop experiment, otherwise, continue to monitor t durations, and record
When temperature, the electric automobile power battery when electric automobile power battery reaches thermal balance reach thermal balance when
Between, electric automobile power battery temperature and flow of heat conduction hydroecium water outlet and water inlet when reaching thermal balance, it
Enter step c4 afterwards；
Step c4, the instantaneous power of this heat management experiment is calculated, and calculates Mean Input Power, afterwards into step
d1；
Step d1, calorstat temperature is set as initial value T0, and all parts for making to be in the insulating box are stood
For a period of time, so that the temperature of all parts in insulating box reaches the initial value T0, afterwards into step d2；
Step d2, calorstat temperature is set as -30 DEG C, while opens the thermal management unit, is set and is controlled described cold
But the temperature of liquid is 10 DEG C, afterwards into step d3；
Step d3, at the trial between in section t, the temperature of the electric automobile power battery is continued to monitor, if monitored
The temperature of electric automobile power battery be less than 0 DEG C of critical-temperature, then stop experiment, otherwise, continue to monitor t durations, and record
When temperature, the electric automobile power battery when electric automobile power battery reaches thermal balance reach thermal balance when
Between, electric automobile power battery temperature and flow of heat conduction hydroecium water outlet and water inlet when reaching thermal balance, it
Enter step d4 afterwards；
Step d4, the instantaneous power of this heat management experiment is calculated, and calculates Mean Input Power, afterwards into step
e1；
Step e1, calorstat temperature is set as initial value T0, and all parts for making to be in the insulating box are stood
For a period of time, so that the temperature of all parts in insulating box reaches the initial value T0, afterwards into step e2；
Step e2, calorstat temperature is set as -30 DEG C, while opens the thermal management unit, is set and is controlled described cold
But the temperature of liquid is 20 DEG C, afterwards into step e3；
Step e3, at the trial between in section t, the temperature of the electric automobile power battery is continued to monitor, if monitored
The temperature of electric automobile power battery be less than 0 DEG C of critical-temperature, then stop experiment, otherwise, continue to monitor t durations, and record
When temperature, the electric automobile power battery when electric automobile power battery reaches thermal balance reach thermal balance when
Between, electric automobile power battery temperature and flow of heat conduction hydroecium water outlet and water inlet when reaching thermal balance, it
Enter step e4 afterwards；
Step e4, the instantaneous power of this heat management experiment is calculated, and calculates Mean Input Power, afterwards into step
f1；
Step f1, calorstat temperature is set as initial value T0, and all parts for making to be in the insulating box are stood
For a period of time, so that the temperature of all parts in insulating box reaches the initial value T0, afterwards into step f2；
Step f2, calorstat temperature is set as -30 DEG C, while opens the thermal management unit, is set and is controlled described cold
But the temperature of liquid is 30 DEG C, afterwards into step f3；
Step f3, at the trial between in section t, the temperature of the electric automobile power battery is continued to monitor, if monitored
The temperature of electric automobile power battery be less than 0 DEG C of critical-temperature, then stop experiment, otherwise, continue to monitor t durations, and record
When temperature, the electric automobile power battery when electric automobile power battery reaches thermal balance reach thermal balance when
Between, electric automobile power battery temperature and flow of heat conduction hydroecium water outlet and water inlet when reaching thermal balance, it
Enter step f4 afterwards；
Step f4, the instantaneous power of this heat management experiment is calculated, and calculates Mean Input Power, afterwards into step
g1；
Step g1 ...
Said process is repeated, until T1Traveled through -40 DEG C, -30 DEG C, -20 DEG C, -10 DEG C, 0 DEG C, 10 DEG C, 20 DEG C, 30 DEG C,
40 DEG C, 50 DEG C and 60 DEG C each temperature.
Using the heat management experimental rig of above-mentioned electric automobile power battery, and using above-mentioned electric automobile power battery
Heat management test method, the electric automobile power battery that can be tested out at different ambient temperatures reach used in equalized temperature when
Between, thermal balance when temperature, flow, the parameter such as power, and then can determine that optimal electric automobile moves according to these parameters
Power battery thermal management scheme.
The heat management experimental rig and method of the above-mentioned electric automobile power battery of the present invention, can simulate electric automobile
Electrokinetic cell is after travelling after a while, the bar that is statically placed in parking stall under different temperature environments and opens heat management system
Under part, if enable to electric automobile power battery to reach optimum performance state and can smoothly start, and then search out optimal
The coolant temperature of heat management, so that it is determined that the thermal management scheme of the electric automobile power battery gone out under various temperature environment.This
Scheme of the invention can facilitate the startup and operation of electric automobile under simulation spring, summer, autumn and winter round-the-clock environment, to finding optimal electricity
The thermal management policy of electrical automobile electrokinetic cell, the temperature control of management and control electric automobile power battery, and then to the peace of electric automobile
Full property and runnability have important practical significance.
It should be appreciated that although this specification is described according to each embodiment, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical scheme in each embodiment may also be suitably combined to form people in the art
The other embodiment that member is appreciated that.
Those listed above is a series of to be described in detail only for feasibility embodiment of the invention specifically
It is bright, and and be not used to limit the scope of the invention, all equivalent embodiments made without departing from skill spirit of the present invention or
Change, such as the combination, segmentation or repetition of feature, should be included in the scope of the protection.
Claims (10)
- A kind of 1. heat management experimental rig of electric automobile power battery, it is characterised in that including：Heat conduction hydroecium (1), the heat conduction hydroecium (1) are attached at the electric automobile power battery (9) by fin (11)；Thermal management unit (2), the thermal management unit (2) provide heat by coolant endless form to the heat conduction hydroecium (1) Measure to maintain the thermal balance of the electric automobile power battery (9)；Temperature collecting cell (3), the temperature collecting cell (3) are entered to the real time temperature of the electric automobile power battery (9) Row collection；Insulating box (4), heat conduction hydroecium (1) and electric automobile power battery (9) described in insulating box (4) inner containment, with to The electric automobile power battery (9) provides constant environment temperature；AndControl unit (5), described control unit (5) are electrically connected in the thermal management unit (2) and temperature collecting cell (3), to be controlled to the thermal management unit (2), and in the case where the insulating box (4) maintains different steady temperatures respectively, Determine the heat management parameter when electric automobile power battery (9) reaches equalized temperature.
- 2. the heat management experimental rig of electric automobile power battery according to claim 1, it is characterised in that the heat pipe Reason parameter includes：It is flat that the electric automobile power battery (9) reaches time used in equalized temperature, the electric automobile power battery (9) heat The power that temperature, coolant rate and the thermal management unit (2) during weighing apparatus are consumed during experiment.
- 3. the heat management experimental rig of electric automobile power battery according to claim 2, it is characterised in that the heat pipe The power that reason unit (2) is consumed during experiment includes：Instantaneous power and Mean Input Power of the thermal management unit (2) provided in experiment process.
- 4. the heat management experimental rig of electric automobile power battery according to claim 1, it is characterised in that the heat pipe Reason unit (2) includes：Coolant cycling element (21), the coolant cycling element (21) are connected to the heat conduction hydroecium (1) to be led to described The circulating liquid of coolant is passed through and exported in hot hydroecium (1)；Heating unit (22), the heating unit (22) are installed on the coolant cycling element (21) and are electrically connected to the control Unit (5) processed, to add under the control of described control unit (5) to the coolant in the coolant cycling element (21) Heat；Refrigeration unit (23), the refrigeration unit (23) are installed on the coolant cycling element (21) and are electrically connected to the control Unit (5) processed, with the control of described control unit (5) to the coolant system in the coolant cycling element (21) It is cold.
- 5. the heat management experimental rig of electric automobile power battery according to claim 4, it is characterised in that the temperature Collecting unit (3) includes：At least one temperature sensor (32), at least one temperature sensor (32) are respectively arranged in the electric automobile and moved The surface of power battery (9) everywhere, at the battery pole ear of the electric automobile power battery (9), the surface of the heat conduction hydroecium (1) Everywhere, the opening position of the interior and remote electric automobile power battery (9) of the casing of insulating box (4) and the heat conduction hydroecium (1) water outlet and water inlet of the coolant cycling element (21) are connected to；Temperature sampler (31), the Temperature sampler (31) are electrically connected at least one temperature sensor (32), and The Temperature sampler (31) is also electrically coupled to described control unit (5), the Temperature sampler (31) collect described at least one Temperature that individual temperature sensor (32) is gathered simultaneously is transferred to described control unit (5).
- 6. the heat management experimental rig of electric automobile power battery according to claim 5, it is characterised in that：Described control unit (5), by controlling the heating unit (22) and refrigeration unit (23) with single to flowing through the heating Coolant setting stationary temperature behind first (22) and refrigeration unit (23)；Also, described control unit (5) controls the temperature Collector (31) gather simultaneously record the temperature value of each temperature sensor (32), while record test period, coolant rate, with And the temperature of water outlet and the temperature of water inlet of the heat conduction hydroecium (1).
- A kind of 7. heat management test method of electric automobile power battery, using electronic as described in any one of claim 1 to 6 The heat management experimental rig of automobile power cell, methods described include：Step 1, insulating box (4) temperature is set as initial value T0, and all parts for making to be in the insulating box (4) are stood For a period of time, so that the temperature of all parts in insulating box (4) reaches the initial value T0, wherein, the initial value T0For Simulation electric automobile after the traveling mileage of one day, park and be statically placed in garage, the internal temperature of electrokinetic cell；Step 2, insulating box (4) temperature is set as T1, while the thermal management unit (2) is opened, set and control the coolant Temperature be A；Step 3, at the trial between in section t, the temperature of the electric automobile power battery (9) is continued to monitor, if monitored The temperature of electric automobile power battery (9) is less than critical-temperature Tc, then stop experiment, record test period and heat conduction hydroecium (1) Intake-outlet temperature and fluid flow；Otherwise, t durations are continued to monitor, and records the electric automobile power battery (9) and reaches Time, the electric automobile power battery when temperature, the electric automobile power battery (9) during thermal balance reach thermal balance (9) temperature and flow of heat conduction hydroecium (1) water outlet and water inlet when reaching thermal balance, wherein, critical-temperature TcIt is less than Electric automobile starts or the requirement of charging；Step 4, the instantaneous power for calculating the experiment of this heat management, and calculate Mean Input Power：Step 5, under conditions of setting and controlling the temperature of the coolant as B, repeat step 1 to step 4；Step 6, under conditions of setting and controlling the temperature of the coolant as C, repeat step 1 to step 4；Step 7, by insulating box (4) temperature T1It is set as multiple different temperatures values successively, so that the insulating box (4) is simulated respectively Varying environment temperature, and repeat step 1 is to step 6, to test out the electric automobile power battery at different ambient temperatures (9) heat management parameter during equalized temperature is reached.
- 8. the heat management test method of electric automobile power battery according to claim 7, it is characterised in that pass through following formula Calculate the instantaneous power of heat management experiment：P1=cL ρ Δs T/60Wherein, P1For the instantaneous power inputted required for heat management, unit kW；C be coolant specific heat, unit kJ/ (kg·℃)；L be coolant flow, unit l/min；ρ is coolant density, unit kg/L；Δ T is heat conduction hydroecium (1) the inlet and outlet temperature difference, unit are DEG C.
- 9. the heat management test method of electric automobile power battery according to claim 8, it is characterised in that pass through following formula Calculate Mean Input Power：<mrow> <msub> <mi>P</mi> <mn>2</mn> </msub> <mo>=</mo> <munderover> <mo>&Sigma;</mo> <mrow> <mi>i</mi> <mo>=</mo> <mn>0</mn> </mrow> <mi>n</mi> </munderover> <mi>P</mi> <mrow> <mo>(</mo> <mi>i</mi> <mo>)</mo> </mrow> <mo>/</mo> <mi>n</mi> </mrow>Wherein：P2For Mean Input Power；P (i) is the instantaneous power of input required for the heat management in each sampling period, and n is Sampling number within the test period.
- 10. the heat management test method of electric automobile power battery according to claim 7, it is characterised in that：T0For 20 DEG C~35 DEG C；T1Setting is respectively -40 DEG C, -30 DEG C, -20 DEG C, -10 DEG C, 0 DEG C, 10 DEG C, 20 DEG C, 30 DEG C, 40 DEG C, 50 DEG C and 60 DEG C；TcFor 0 DEG C；A is 10 DEG C, B is 20 DEG C, C is 30 DEG C.
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| CN106227186B (en) * | 2016-07-12 | 2019-11-01 | 北京长城华冠汽车科技股份有限公司 | A kind of test macro and method of electric car heat management pipeline |
| CN106532155A (en) * | 2016-12-27 | 2017-03-22 | 武汉博富通试验设备有限公司 | Detection equipment of thermal management system |
| CN107145649A (en) * | 2017-04-24 | 2017-09-08 | 北京长城华冠汽车科技股份有限公司 | The determination method of the coolant control parameter of electric automobile power battery |
| CN108195878A (en) * | 2017-12-15 | 2018-06-22 | 北京长城华冠汽车科技股份有限公司 | The test device and method of a kind of thermal contact resistance |
| CN109752659A (en) * | 2018-12-30 | 2019-05-14 | 蜂巢能源科技有限公司 | The PACK test macro and method of liquid cooling battery |
| CN112713330B (en) * | 2019-10-25 | 2022-05-20 | 宇通客车股份有限公司 | Method for determining parameters of liquid-cooled battery system for vehicle |
| CN110806542A (en) * | 2019-12-06 | 2020-02-18 | 北京普莱德新能源电池科技有限公司 | Power battery testing system and method |
| CN113492663B (en) * | 2021-07-22 | 2023-03-21 | 上汽通用五菱汽车股份有限公司 | Power battery heating method, vehicle and readable storage medium |
| CN114235209B (en) * | 2021-12-28 | 2023-06-23 | 苏州英特模科技股份有限公司 | Non-contact type measuring equipment and method for dynamic workpiece |
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Denomination of invention: Heat management experiment apparatus and method for power battery of electric vehicle Effective date of registration: 20190513 Granted publication date: 20180123 Pledgee: Suzhou Trust Co., Ltd. Pledgor: BEIJING CHANGCHENG HUAGUAN AUTOMOBILE TECHNOLOGY CO., LTD. Registration number: 2019990000418 |