CN109540544A - A kind of test macro and test method for examining battery thermal management system cooling capacity - Google Patents
A kind of test macro and test method for examining battery thermal management system cooling capacity Download PDFInfo
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- CN109540544A CN109540544A CN201811458260.8A CN201811458260A CN109540544A CN 109540544 A CN109540544 A CN 109540544A CN 201811458260 A CN201811458260 A CN 201811458260A CN 109540544 A CN109540544 A CN 109540544A
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- power battery
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- battery
- management system
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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
Abstract
The present invention provides a kind of test macros and test method for examining battery thermal management system cooling capacity, are related to automobile technical field.The test macro includes: environmental test chamber, and electrokinetic cell system to be detected is in the inside of environmental test chamber, and wherein electrokinetic cell system includes power battery and battery thermal management system, is provided with liquid circulation line on battery thermal management system；Liquid cooling test unit is connected to liquid circulation line, inputs the liquid of different temperatures to the inside of liquid circulation line by liquid cooling test unit；Charge and discharge test machine is connect by high-pressure connection line with electrokinetic cell system；Temperature sensor, for detecting the battery core temperature of power battery.By the way that electrokinetic cell system is placed in environmental test chamber, simulates hot environment and carry out that multiple charge and discharge is electrically operated, the maximum temperature and maximum temperature difference of power battery are monitored, to judge the cooling capacity and samming ability of battery thermal management system.
Description
Technical field
The present invention relates to automobile technical field, in particular to a kind of test system for examining battery thermal management system cooling capacity
System and test method.
Background technique
With the development of science and technology, automobile has become the indispensable vehicles in people's daily life；Because of fuel oil conduct
Non-renewable resources, in order to reduce the usage amount of fuel oil, more and more automobile production manufacturers are gradually dedicated to pure electric automobile
Research and production.
In the process of moving, power battery can generate amount of heat to pure electric vehicle, so that electrical core of power battery temperature liter
It is high.It is therefore desirable to be detected in advance to the cooling of battery thermal management system and samming ability by laboratory facilities.Avoid because
The cooling of battery thermal management system and samming ability is bad causes battery core temperature overheating, so that battery reduces, and makes
The problem of at vehicle safety hidden danger.
Summary of the invention
The embodiment of the present invention provides a kind of test macro and test method for examining battery thermal management system cooling capacity, uses
With solve the problem of the cooling because of battery thermal management system and samming ability is not up to standard be applied to vehicle after cause security risk.
In order to solve the above-mentioned technical problem, the embodiment of the present invention, which provides, a kind of examines battery thermal management system cooling capacity
Test macro, comprising:
Environmental test chamber, electrokinetic cell system to be detected is in the inside of the environmental test chamber, wherein the power
Battery system includes power battery and battery thermal management system, is provided with liquid circulation line on the battery thermal management system；
Liquid cooling test unit, the liquid cooling test unit are connected to the liquid circulation line, are tested by the liquid cooling
Liquid of the unit to the inside of liquid circulation line input different temperatures；
Charge and discharge test machine is connect by high-pressure connection line with the power battery；
Temperature sensor, for detecting the battery core temperature of the power battery.
Further, the system also includes:
Host computer is connect with the temperature sensor and the power battery；
Computer is connect with the host computer.
A kind of test method examines the cooling capacity of battery thermal management system, the method using above-mentioned test macro
Include:
When the power battery in the electrokinetic cell system being set in the environmental test chamber has the first default electricity
When amount, the temperature controlled in the environmental test chamber keeps the first preset temperature；
Charge and discharge are carried out to the power battery being set in the environmental test chamber by the charge and discharge test machine
Control, switches the state of charge of the power battery repeatedly between the described first default electricity and the second default electricity；
The state of charge for obtaining the power battery is more between the described first default electricity and the second default electricity
When secondary switching, multiple temperature values of the temperature sensor monitoring acquisition；
According to the temperature value, the cooling capacity of the battery thermal management system is analyzed.
Further, it is described by the charge and discharge test machine to the power electric being set in the environmental test chamber
Before pond carries out charge and discharge control, the method also includes:
It is pre- that first is stood in the environmental test chamber in the electrokinetic cell system with the described first default electricity
If after duration, detecting the difference between the battery core temperature of the power battery and first preset temperature by temperature sensor
Value；
When the difference is less than or equal to fiducial temperature, then execute described to being set to by the charge and discharge test machine
The step of power battery in environmental test chamber carries out charge and discharge control.
Further, the described second default electricity is greater than the described first default electricity.
Further, make the state of charge of the power battery in the described first default electricity and the described second default electricity
Between switch, comprising:
By the charge and discharge test machine to the power battery charging, make the power battery charging to described second pre-
If electricity；
The electrokinetic cell system stands the second preset duration；
It is discharged by the charge and discharge test machine the power battery, so that the power battery is discharged to described first pre-
If electricity；
The electrokinetic cell system stands the second preset duration.
Further, it is described by the charge and discharge test machine to the power battery charging during:
The rate of the charging is the corresponding charge rate of maximum charging current that first preset temperature allows；
It is described by the charge and discharge test machine to the power battery electric discharge during:
When the rate of the electric discharge is that the electrokinetic cell system is used on vehicle, what first preset temperature allowed
The corresponding discharge rate of the max speed.
Further, described to keep the state of charge of the power battery pre- with described second in the described first default electricity
If during repeatedly switching between electricity, the method also includes:
The flow for controlling the liquid cooling test unit keeps the inlet liquid of preset flow and the liquid cooling test unit
Temperature remains the second preset temperature.
The beneficial effects of the present invention are:
Above scheme, by the way that electrokinetic cell system is placed in environmental test chamber, simulate hot environment and carries out multiple charge and discharge
It is electrically operated, monitor the maximum temperature and maximum temperature difference of power battery, thus judge battery thermal management system cooling capacity and
Samming ability.
Detailed description of the invention
Fig. 1 shows the test system structure block diagrams that the embodiment of the present invention examines battery thermal management system cooling capacity；
Fig. 2 indicates that the embodiment of the present invention examines the flow chart of the test method of battery thermal management system cooling capacity.
Description of symbols:
100- environmental test chamber；200- electrokinetic cell system；210- battery thermal management system；220- power battery；300-
Liquid circulation line；400- liquid cooling test unit；500- charge and discharge test machine；600- temperature sensor；700- host computer；800-
Computer.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, right below in conjunction with the accompanying drawings and the specific embodiments
The present invention is described in detail.
The present invention for because of battery thermal management system cooling and samming ability it is not up to standard, cause safety after being applied to vehicle
The problem of hidden danger, provides a kind of test macro and test method for examining battery thermal management system cooling capacity.
As shown in Figure 1, the embodiment of the present invention provides a kind of test system for examining 210 cooling capacity of battery thermal management system
System, comprising:
Environmental test chamber 100, electrokinetic cell system 200 to be detected are in the inside of the environmental test chamber 100, wherein
The electrokinetic cell system 200 includes power battery 220 and battery thermal management system 210, on the battery thermal management system 210
It is provided with liquid circulation line 300；
Liquid cooling test unit 400, the liquid cooling test unit 400 is connected to the liquid circulation line 300, by described
Liquid of the liquid cooling test unit 400 to the inside of the liquid circulation line 300 input different temperatures；
Charge and discharge test machine 500 is connect by high-pressure connection line with the power battery 220；
Temperature sensor 600, for detecting the battery core temperature of the power battery 220.
It should be noted that flowing into battery thermal management via liquid circulation line 300 by adjusting liquid cooling test unit 400
The fluid temperature and flow of system 210 provide for battery thermal management system 210 and carry out cooling coolant liquid to power battery 220；
The charge and discharge test machine 500 can controllably be charged to power battery 220 and controlled discharge, it can adjustment charge rate
And discharge rate, simulation power battery 220 is applied to charge status when vehicle, so that test result more has reference
Property.
Specifically, the system also includes:
Host computer 700 is connect with the temperature sensor 600 and the power battery 220.
Computer 800 is connect with the host computer 700.
It should be noted that the host computer 700 can read the temperature value and institute that the temperature sensor 600 detects
The state-of-charge (SOC) of power battery 220 is stated, and the data read are transferred to the computer 800, computer 800 can
Data are shown, keep experimentation more intuitive, are more conducive to analyzing and determining.
As shown in Fig. 2, the embodiment of the present invention also provides a kind of test method, battery heat is examined using above-mentioned test macro
The cooling capacity of management system 210, which comprises
Step 201, when the power battery in the electrokinetic cell system 200 being set in the environmental test chamber 100
220 when having the first default electricity, controls temperature in the environmental test chamber 100 and keeps the first preset temperature；
It should be noted that in order to utilize the continuous charge and discharge heat production of the harsh operating condition of electrokinetic cell system 200 under hot environment
Measure big feature, detection battery thermal management system 210 to power battery 220 cool and samming ability.Described first is pre-
If temperature is specially 40 DEG C, which is specifically 10% electricity when power battery 220 is full electric, to make the power
Power battery 220 in battery system 200 has the described first default electricity, can by the charge and discharge test machine 500 into
Row adjustment.
Step 202, by the charge and discharge test machine 500 to the power being set in the environmental test chamber 100
Battery 220 carries out charge and discharge control, keeps the state of charge of the power battery 220 default in the described first default electricity and second
Repeatedly switch between electricity；
Specifically, the described second default electricity is greater than the described first default electricity；The second default electricity is specifically power
90% electricity when battery 220 is full electric.
It should be noted that it is described by the charge and discharge test machine 500 to being set in the environmental test chamber 100
Before the power battery 220 carries out charge and discharge control, the method also includes:
It is stood in the environmental test chamber 100 in the electrokinetic cell system 200 with the described first default electricity
After first preset duration, the battery core temperature and the described first default temperature of the power battery 220 are detected by temperature sensor 600
Difference between degree；
When the difference is less than or equal to fiducial temperature, then execute through the charge and discharge test machine 500 to being set to
The step of power battery 220 in the environmental test chamber 100 carries out charge and discharge control.
In order to make electrokinetic cell system 200 sufficiently adapt to the hot environment that environmental test chamber 100 is simulated, avoid because of other
The case where factor interference test result, occurs, which is specially at least 24 hours.
It should be noted that making the state of charge of the power battery 220 in the described first default electricity in step 202
Switch between the described second default electricity, comprising:
It is charged by the charge and discharge test machine 500 to the power battery 220, charges to the power battery 220
The second default electricity；
Specifically, it is described by the charge and discharge test machine 500 to the power battery 220 charging during:
The rate of the charging is the corresponding charge rate of maximum charging current that first preset temperature allows；
The electrokinetic cell system 200 stands the second preset duration；
It is discharged by the charge and discharge test machine 500 power battery 220, is discharged to the power battery 220
The first default electricity；
Specifically, it is described by the charge and discharge test machine 500 to the power battery 220 electric discharge during:
When the rate of the electric discharge is that the electrokinetic cell system 200 is used on vehicle, first preset temperature is permitted
Perhaps the corresponding discharge rate of the max speed.
The electrokinetic cell system 200 stands the second preset duration again.
Second preset duration is specially 5 minutes.
Step 203, the state of charge for obtaining the power battery 220 is default with described second in the described first default electricity
When repeatedly switching between electricity, multiple temperature values of the monitoring of temperature sensor 600 acquisition；
Specifically, it is described make the state of charge of the power battery 220 in the described first default electricity and described second
During repeatedly switching between default electricity, the method also includes:
Control the liquid cooling test unit 400 flow keep preset flow and the liquid cooling test unit 400 into
Oral fluid temperature remains the second preset temperature.Preferably, the preset flow is specially 10 Liter Per Minutes, and described second is default
Temperature is specially 20 DEG C.The liquid for flowing into battery thermal management system 210 substitutes the electrokinetic cell system 200 and applies to vehicle
Coolant liquid on carries out cooling processing to power battery 220.
Step 204, according to the temperature value, the cooling capacity of the battery thermal management system 210 is analyzed.
The battery core maximum temperature of power battery 220 in experimentation is read from computer 800, and is entirely being circulated throughout
The maximum temperature difference of battery core in journey.If testing obtained maximum temperature lower than preset threshold, maximum temperature difference is lower than default temperature
Poor threshold value, then it is assumed that the battery thermal management system 210 has good cooling capacity and samming ability.
It should be noted that by testing battery thermal management system 210 its cooling capacity can be understood in advance simultaneously
Advanced optimize improvement.
Above-described is the preferred embodiment of the present invention, it should be pointed out that the ordinary person of the art is come
It says, can also make several improvements and retouch under the premise of not departing from principle of the present invention, these improvements and modifications also exist
In protection scope of the present invention.
Claims (9)
1. a kind of test macro for examining battery thermal management system cooling capacity characterized by comprising
Environmental test chamber, electrokinetic cell system to be detected is in the inside of the environmental test chamber, wherein the power battery
System includes power battery and battery thermal management system, is provided with liquid circulation line on the battery thermal management system；
Liquid cooling test unit, the liquid cooling test unit are connected to the liquid circulation line, pass through the liquid cooling test unit
To the liquid of the inside of liquid circulation line input different temperatures；
Charge and discharge test machine is connect by high-pressure connection line with the power battery；
Temperature sensor, for detecting the battery core temperature of the power battery.
2. the test macro according to claim 1 for examining battery thermal management system cooling capacity, which is characterized in that described
System further include:
Host computer is connect with the temperature sensor and the power battery.
3. the test macro according to claim 2 for examining battery thermal management system cooling capacity, which is characterized in that described
System further include:
Computer is connect with the host computer.
4. a kind of test method, which is characterized in that examine battery heat using the described in any item test macros of claims 1 to 3
The cooling capacity of management system, which comprises
When the power battery in the electrokinetic cell system being set in the environmental test chamber has the first default electricity,
The temperature controlled in the environmental test chamber keeps the first preset temperature；
Charge and discharge control is carried out to the power battery being set in the environmental test chamber by the charge and discharge test machine,
Switch the state of charge of the power battery repeatedly between the described first default electricity and the second default electricity；
The state of charge for obtaining the power battery is repeatedly cut between the described first default electricity and the second default electricity
When changing, multiple temperature values of the temperature sensor monitoring acquisition；
According to the temperature value, the cooling capacity of the battery thermal management system is analyzed.
5. test method according to claim 4, which is characterized in that it is described by the charge and discharge test machine to being set to
Before the power battery in the environmental test chamber carries out charge and discharge control, the method also includes:
The electrokinetic cell system with the described first default electricity stood in the environmental test chamber first it is default when
After length, the difference between the battery core temperature of the power battery and first preset temperature is detected by temperature sensor；
When the difference is less than or equal to fiducial temperature, then execute through the charge and discharge test machine to being set to the environment
The step of power battery in chamber carries out charge and discharge control.
6. test method according to claim 4, which is characterized in that it is default that the second default electricity is greater than described first
Electricity.
7. test method according to claim 4, which is characterized in that make the state of charge of the power battery described
Switch between one default electricity and the second default electricity, comprising:
By the charge and discharge test machine to the power battery charging, make the power battery charging to the described second default electricity
Amount；
The electrokinetic cell system stands the second preset duration；
It is discharged by the charge and discharge test machine the power battery, the power battery is made to be discharged to the described first default electricity
Amount；
The electrokinetic cell system stands the second preset duration.
8. test method according to claim 7, which is characterized in that described to be moved by the charge and discharge test machine to described
During power battery charges:
The rate of the charging is the corresponding charge rate of maximum charging current that first preset temperature allows；
It is described by the charge and discharge test machine to the power battery electric discharge during:
When the rate of the electric discharge is that the electrokinetic cell system is used on vehicle, the maximum of the first preset temperature permission
The corresponding discharge rate of speed.
9. test method according to claim 4, which is characterized in that described that the state of charge of the power battery is made to exist
During repeatedly switching between the first default electricity and the second default electricity, the method also includes:
The flow for controlling the liquid cooling test unit keeps the inlet liquid temperature of preset flow and the liquid cooling test unit
Remain the second preset temperature.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111693873A (en) * | 2019-10-25 | 2020-09-22 | 中国电器科学研究院股份有限公司 | Outdoor test method for new energy automobile power battery |
| CN111929087A (en) * | 2020-07-27 | 2020-11-13 | 湖北雷迪特冷却系统股份有限公司 | Multifunctional performance test bench for power battery thermal management system |
| CN112033702A (en) * | 2020-10-09 | 2020-12-04 | 吉林大学 | Electric automobile intelligence thermal management system test bench |
| CN112505547A (en) * | 2020-11-10 | 2021-03-16 | 东风汽车集团有限公司 | Quick charge test method, device and system and computer equipment |
| CN112540310A (en) * | 2020-12-08 | 2021-03-23 | 重庆金康动力新能源有限公司 | Verification method and system for battery temperature management strategy |
| CN112834933A (en) * | 2019-11-22 | 2021-05-25 | 北京新能源汽车股份有限公司 | Method and device for detecting thermal performance of battery module |
| CN113009369A (en) * | 2021-03-18 | 2021-06-22 | 奇瑞新能源汽车股份有限公司 | Method and device for testing cycle durability of power battery |
| CN113029549A (en) * | 2021-04-29 | 2021-06-25 | 重庆长安新能源汽车科技有限公司 | New energy automobile thermal management system test device |
| CN113686916A (en) * | 2020-05-18 | 2021-11-23 | 郑州深澜动力科技有限公司 | Test system and test method for detecting cooling effect of power battery system |
| CN115167567A (en) * | 2022-07-29 | 2022-10-11 | 联想(北京)信息技术有限公司 | Temperature control method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111693873A (en) * | 2019-10-25 | 2020-09-22 | 中国电器科学研究院股份有限公司 | Outdoor test method for new energy automobile power battery |
| CN111693873B (en) * | 2019-10-25 | 2023-01-31 | 中国电器科学研究院股份有限公司 | Outdoor test method for new energy automobile power battery |
| CN112834933A (en) * | 2019-11-22 | 2021-05-25 | 北京新能源汽车股份有限公司 | Method and device for detecting thermal performance of battery module |
| CN113686916A (en) * | 2020-05-18 | 2021-11-23 | 郑州深澜动力科技有限公司 | Test system and test method for detecting cooling effect of power battery system |
| CN111929087A (en) * | 2020-07-27 | 2020-11-13 | 湖北雷迪特冷却系统股份有限公司 | Multifunctional performance test bench for power battery thermal management system |
| CN112033702A (en) * | 2020-10-09 | 2020-12-04 | 吉林大学 | Electric automobile intelligence thermal management system test bench |
| CN112505547A (en) * | 2020-11-10 | 2021-03-16 | 东风汽车集团有限公司 | Quick charge test method, device and system and computer equipment |
| CN112505547B (en) * | 2020-11-10 | 2021-10-22 | 东风汽车集团有限公司 | Quick charge test method, device and system and computer equipment |
| CN112540310A (en) * | 2020-12-08 | 2021-03-23 | 重庆金康动力新能源有限公司 | Verification method and system for battery temperature management strategy |
| CN113009369A (en) * | 2021-03-18 | 2021-06-22 | 奇瑞新能源汽车股份有限公司 | Method and device for testing cycle durability of power battery |
| CN113029549A (en) * | 2021-04-29 | 2021-06-25 | 重庆长安新能源汽车科技有限公司 | New energy automobile thermal management system test device |
| CN115167567A (en) * | 2022-07-29 | 2022-10-11 | 联想(北京)信息技术有限公司 | Temperature control method and device |
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