CN116358889A - Device and method for testing heat management performance of three-electric system of electric automobile - Google Patents
Device and method for testing heat management performance of three-electric system of electric automobile Download PDFInfo
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- 238000012360 testing method Methods 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000004364 calculation method Methods 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 238000011056 performance test Methods 0.000 claims description 11
- 238000004088 simulation Methods 0.000 claims description 10
- 238000005086 pumping Methods 0.000 claims description 9
- 238000011161 development Methods 0.000 abstract description 13
- 238000013461 design Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
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- 230000001276 controlling effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 230000001105 regulatory effect Effects 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
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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
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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
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/002—Thermal testing
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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
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
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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
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/008—Subject matter not provided for in other groups of this subclass by doing functionality tests
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
- G01R31/343—Testing dynamo-electric machines in operation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The invention provides a device and a method for testing the thermal management performance of a three-electric system of an electric automobile, comprising the following steps: the test platform is used for simulating the running environment of the system to be tested under the target working condition; the digital twin calculation module is used for calculating the heat exchange quantity between the missing part in the three-electric system in the system to be measured and the thermal management system; the equivalent heat exchanger is connected with the heat management system in the system to be tested in series, and the heat exchange amount between the equivalent heat exchanger and the heat management system is the same as the heat exchange amount between the missing part and the heat management system. The invention has the beneficial effects that: the three-electric system in the system to be tested can be a complete three-electric system or a three-electric system without an electric drive or power battery, the application range of the test is wider, and especially in the early stage of design and development of the electric automobile, the multi-system integrated test can be performed under the condition that the electric drive system or the power battery is vacant, the test time of the front three-electric system is shortened, and the development period and the development risk are reduced.
Description
Technical Field
The invention belongs to the technical field of electric automobile thermal management tests, and particularly relates to a device and a method for testing thermal management performance of a three-electric system of an electric automobile.
Background
In recent years, three-electric system and thermal management system are deeply integrated, and the integration trend of the thermal management system is obviously increased, which has three characteristics: first, functions are integrated. By integrating the functions of all the components, the components are integrated into one component, various all-in-one products are layered endlessly, the production cost of the components is greatly reduced, and the arrangement space in a vehicle is saved; second, the energy between the systems is coupled in depth. The three-electric system and the thermal management system are deeply integrated, such as braking energy recovery, motor locked-rotor heating, motor waste heat recovery, energy flow between the power battery and the passenger cabin and the like; and thirdly, overall optimal control of the whole vehicle energy. At present, research and development vehicle types of different vehicle enterprises are all developed towards the overall optimal control direction of energy, different use scenes are distinguished, and the serial-parallel connection of different loops is controlled through valve body conversion, so that overall management of energy flow among systems is realized, and the aim of optimizing comprehensive performance is fulfilled.
The thermal management system is complex, the energy coupling between the components is strong, the thermal management system is indistinguishable, and the development difficulty of the thermal management system is high. In order to ensure that the performance of the thermal management system is consistent with the performance target of the whole vehicle, a large number of multi-system integrated bench tests based on entity hardware are required to be developed in the vehicle research and development process so as to pre-evaluate the dynamic performance, the safety, the economical efficiency and the comfort performance of the vehicle. However, in the development process of the vehicle, the output time nodes of different samples in the three-electric system are different, when a multi-system integrated bench test is performed, the situation that individual samples are missing often occurs, and particularly two key components, namely an electric drive assembly and a power battery, are required to be tested, so that the thermal management system test based on the three-electric system completely has certain limitation, and the test requirements of different development stages of the vehicle cannot be met. Therefore, there is a need for an efficient and flexible multi-system integrated test bench that can serve different stages of vehicle development.
Disclosure of Invention
In view of the above, the present invention is directed to a device and a method for testing the thermal management performance of a three-electric system of an electric vehicle, so as to solve at least one of the above-mentioned technical problems.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
the invention provides a thermal management performance testing device of a three-electric system of an electric automobile, which is characterized in that: comprising the following steps:
the test platform is used for simulating the running environment of the system to be tested under the target working condition;
the digital twin calculation module is used for calculating the heat exchange quantity between the missing part in the three-electric system in the system to be measured and the thermal management system;
the equivalent heat exchanger is connected in series with the heat management system in the system to be tested, and the heat exchange quantity between the equivalent heat exchanger and the heat management system is the same as the heat exchange quantity between the missing part and the heat management system;
a battery simulator for providing power to the motor or for providing a work load to the power battery.
Further, the equivalent heat exchanger is a plate heat exchanger, a first heat exchange cavity of the plate heat exchanger is connected in series with the heat management system, and a second heat exchange cavity of the plate heat exchanger is communicated with the equivalent analog source module;
and the equivalent simulation source module exchanges heat with the thermal management system through an equivalent heat exchanger.
Further, the equivalent analog source module includes:
a constant temperature water tank, in which a heat exchange medium is arranged;
a pumping assembly for driving the flow of the heat exchange medium;
the liquid outlet end of the pumping assembly is communicated with the liquid inlet end of a heat exchange cavity II of the plate heat exchanger through a flow control valve, and the liquid outlet end of the heat exchange cavity II of the plate heat exchanger is communicated with the constant temperature water tank;
the constant temperature water tank is communicated with the water chiller, and a heater is arranged in the constant temperature water tank.
Further, a liquid inlet end and a liquid outlet end of the second heat exchange cavity of the plate heat exchanger are respectively provided with a temperature sensor, and the liquid outlet end of the second heat exchange cavity of the plate heat exchanger is communicated with the constant temperature water tank through a flowmeter.
Another aspect of the present invention provides a method for applying the electric automobile thermal management performance test device according to the above aspect, which is characterized in that: the method comprises the following steps:
s1, simulating the operation environment of a three-electricity system in a system to be tested under a target working condition;
s2, if the three-electric system in the system to be tested comprises an electric driving system and a power battery, performing thermal management performance test;
if the three-electric system in the system to be tested lacks an electric power failure driving system or a power battery, an equivalent heat exchanger is connected in series in a thermal management system in the system to be tested, and the heat exchange quantity of the equivalent heat exchanger is the same as the heat exchange quantity between the missing part and the thermal management system;
s3, testing the thermal management performance of the thermal management system of the electric vehicle under the target working condition.
Further, the step S1 includes the following steps:
the operating environment of the three-electric system under the target working condition comprises the environment temperature, the humidity, the gas flow rate and the operating load of the three-electric system.
Further, the step S2 includes the following steps:
if the three-electric system in the system to be tested lacks the power-losing driving system or the power battery, the heat exchange quantity between the missing part and the thermal management system under the target working condition is calculated, and the heat exchange quantity of the equivalent heat exchanger is controlled to be matched with the heat exchange quantity between the missing part and the thermal management system.
Further, the method for controlling the heat exchange amount of the equivalent heat exchanger and the heat exchange amount between the missing part and the heat management system is as follows, medium flow of the heat exchange medium in the second heat exchange cavity is collected, temperature difference of the heat exchange medium in the liquid inlet end and the liquid outlet end of the second heat exchange cavity is collected and calculated, the heat exchange amount of the equivalent heat exchanger is calculated through the temperature difference, the medium flow and the medium specific heat capacity, the heat exchange amount of the equivalent heat exchanger is regulated through regulating the flow control valve, and the heat exchange amount of the equivalent heat exchanger and the heat exchange amount between the missing part and the heat management system are matched.
Compared with the prior art, the device and the method for testing the heat management performance of the three-electric system of the electric automobile have the following beneficial effects:
(1) According to the heat management performance testing device for the three-electric system of the electric automobile, the three-electric system in the system to be tested can be a complete three-electric system or a three-electric system without an electric drive or a power battery, the testing application range is wider, and especially in early stage of design and development of the electric automobile, multi-system integrated testing can be performed under the condition that the electric drive system or the power battery is empty, further the performance of heat management performance after system integration can be predicted, the testing time of front heat management performance is shortened, and the development period and the development risk are reduced.
(2) According to the thermal management performance test release of the three-electric system of the electric automobile, the thermal management performance test of the components can be completed by applying the multi-system integrated virtual-real combination test platform, and compared with component selection based on the simulation result of the full virtual model, the virtual-real combination test is more accurate in predicting the actual performance of different components.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
fig. 1 is a schematic view of a device structure according to an embodiment of the present invention.
Reference numerals illustrate:
1. a system to be tested; 2. an equivalent heat exchanger; 3. a test platform; 4. a constant temperature water tank; 5. a heater; 6. a water chiller; 7. an equivalent analog source module; 8. a digital twin calculation module; 9. a battery simulator; 10. a pumping assembly; 11. a flow control valve.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
The invention will be described in detail below with reference to the drawings in connection with embodiments.
The utility model provides a three electric system's of electric automobile thermal management capability test device which characterized in that: comprising the following steps:
the test platform 3 is used for simulating the running environment of the three-electricity system in the system 1 to be tested under the target working condition;
a digital twin calculation module 8 for calculating the heat exchange amount between the missing part in the three-electric system in the system 1 to be measured and the thermal management system;
an equivalent heat exchanger 2 which is connected in series with the thermal management system in the system 1 to be tested, and the heat exchange amount between the equivalent heat exchanger 2 and the thermal management system is the same as the heat exchange amount between the missing part and the thermal management system;
a battery simulator 9 for providing power to the motor or for providing a working load to the power battery.
The equivalent heat exchanger 2 is a plate heat exchanger, a first heat exchange cavity of the plate heat exchanger is connected with the heat management system in series, and a second heat exchange cavity of the plate heat exchanger is communicated with the equivalent simulation source module 7;
the equivalent simulation source module 7 exchanges heat with the thermal management system through the equivalent heat exchanger 2. The system under test 1 comprises a three-electric system and a thermal management system for thermally managing the three-electric system.
A constant temperature water tank 4 in which a heat exchange medium is arranged; the heat exchange medium can be water or heat conduction oil, and in the embodiment, the heat conduction oil is adopted.
A pumping assembly 10 for driving a flow of a heat exchange medium;
the constant temperature water tank 4 is communicated with the liquid inlet end of the pumping assembly 10, the liquid outlet end of the pumping assembly 10 is communicated with the liquid inlet end of the heat exchange cavity II of the plate heat exchanger through the flow control valve 11, the liquid outlet end of the heat exchange cavity II of the plate heat exchanger is communicated with the constant temperature water tank 4, and the constant temperature water tank 4 is internally provided with a valve;
the constant temperature water tank 4 is communicated with the water chiller 6, and a heater 5 is arranged in the constant temperature water tank 4.
The liquid inlet end and the liquid outlet end of the second heat exchange cavity of the plate heat exchanger are respectively provided with a temperature sensor, and the liquid outlet end of the second heat exchange cavity of the plate heat exchanger is communicated with the constant temperature water tank 4 through a flowmeter.
The working process comprises the following steps:
the method for applying the electric automobile thermal management performance testing device comprises the following steps:
s1, simulating the running environment of a three-electricity system in a system 1 to be tested under a target working condition;
s2, if the three-electric system in the system 1 to be tested comprises an electric driving system and a power battery, performing a thermal management performance test;
if the three-electric system in the system 1 to be tested lacks an electric power failure driving system or a power battery, an equivalent heat exchanger 2 is connected in series in a thermal management system in the system 1 to be tested, and the heat exchange quantity of the equivalent heat exchanger 2 is the same as the heat exchange quantity between the missing part and the thermal management system;
s3, testing the thermal management performance of the thermal management system of the electric vehicle under the target working condition.
Step S1 comprises the steps of:
the operating environment of the three-electric system under the target working condition comprises the environment temperature, the humidity, the gas flow rate and the operating load of the three-electric system.
Step S2 comprises the steps of:
if the three-electric system in the system 1 to be tested lacks the power-losing driving system or the power battery, the heat exchange quantity between the missing part and the thermal management system under the target working condition is calculated, and the heat exchange quantity of the equivalent heat exchanger 2 is controlled to be matched with the heat exchange quantity between the missing part and the thermal management system.
The method for controlling the matching of the heat exchange quantity of the equivalent heat exchanger 2 and the heat exchange quantity between the missing part and the heat management system comprises the following steps of collecting medium flow of the heat exchange medium in the second heat exchange cavity, collecting and calculating the temperature difference of the heat exchange medium in the liquid inlet end and the liquid outlet end of the second heat exchange cavity, calculating the heat exchange quantity of the equivalent heat exchanger 2 through the temperature difference, the medium flow and the medium specific heat capacity, and adjusting the heat exchange quantity of the equivalent heat exchanger 2 through adjusting the flow control valve, wherein the heat exchange quantity of the equivalent heat exchanger 2 and the heat exchange quantity between the missing part and the heat management system are matched.
Case one: electric drive system vacancy
Firstly, the test platform 3 receives a target working condition, and the temperature and humidity control and the air supply system of the test platform 3 are controlled to adjust the ambient temperature, the humidity and the air flow rate of the three-electric system, wherein the ambient temperature is 38 ℃, and the relative humidity is 50%.
Secondly, after the electric drive system vacancy demand calculation model receives a target working condition set by a user, calculating a current value of electric drive system demand under the target working condition, and transmitting current to the battery simulator 9 by the power battery of the system to be tested 1.
And the digital twin calculation module 8 calculates the heat exchange quantity between the electric drive system and the thermal management system under the target working condition, and transmits the value to the controller of the equivalent simulation source module 7, the controller collects the medium flow of the heat exchange medium in the second heat exchange cavity, collects and calculates the temperature difference of the heat exchange medium in the liquid inlet end and the liquid outlet end of the second heat exchange cavity, calculates the heat exchange quantity of the equivalent heat exchanger 2 through the temperature difference, the medium flow and the medium specific heat capacity, and adjusts the heat exchange quantity of the equivalent heat exchanger 2 through the flow control valve, wherein the heat exchange quantity of the equivalent heat exchanger 2 is matched with the heat exchange quantity between the electric drive system and the thermal management system.
And heat exchange medium in the entity pipeline in the thermal management system to be tested exchanges heat with the equivalent simulation source module 7 through the equivalent heat exchanger 2. The thermal management system to be tested continuously and circularly operates, the equivalent heat exchanger 2 simulates heat exchange quantity between the electric drive system and the thermal management system under different operating condition points, and the battery simulator 9 simulates the work load of the electric drive system, so that the condition that the electric drive system is in a missing state, the three-electric system operation is consistent with the missing state of the no-electric drive system, and the multi-system integration virtual-real combination test can be completed.
And a second case: power battery void
Firstly, the test platform 3 receives a target working condition, and the temperature and humidity control and the air supply system of the test platform 3 are controlled to adjust the ambient temperature, the humidity and the air flow rate of the three-electric system, wherein the ambient temperature is 38 ℃, and the relative humidity is 50%.
Secondly, according to the operation load of the electric drive system set by the target working condition, the battery simulator 9 replaces a power battery to provide the electric drive system with required current input, so that the electric drive system operates according to the target working condition.
And the digital twin calculation module 8 calculates the heat exchange quantity between the power battery and the thermal management system under the target working condition, and transmits the value to the controller of the equivalent simulation source module 7, the controller collects the medium flow of the heat exchange medium in the second heat exchange cavity, collects and calculates the temperature difference of the heat exchange medium in the liquid inlet end and the liquid outlet end of the second heat exchange cavity, calculates the heat exchange quantity of the equivalent heat exchanger 2 through the temperature difference, the medium flow and the medium specific heat capacity, and adjusts the heat exchange quantity of the equivalent heat exchanger 2 through the flow control valve, wherein the heat exchange quantity of the equivalent heat exchanger 2 is matched with the heat exchange quantity between the missing power battery and the thermal management system.
And heat exchange medium in the entity pipeline in the thermal management system to be tested exchanges heat with the equivalent simulation source module 7 through the equivalent heat exchanger 2. The thermal management system to be tested continuously and circularly operates, the equivalent heat exchanger 2 simulates the heat exchange quantity between the electric driving system and the thermal management system of the power battery under different operating condition points, and the battery simulator 9 drives the electric driving system to act, so that the condition that the power battery is in a missing state is ensured, the operation of the three-electric system is consistent with the missing state of the unpowered battery, and the multi-system integrated virtual-real combination test can be completed.
The three-electric system in the system to be tested can be a complete three-electric system or a three-electric system without an electric drive or power battery, the application range of the test is wider, and especially in the early stage of design and development of the electric automobile, the multi-system integrated test can be performed under the condition that the electric drive system or the power battery is vacant, so that the performance of heat management performance after the system integration can be predicted, the test time of front heat management performance is shortened, and the development period and the development risk are reduced.
The application of the multi-system integrated virtual-real combination test platform 3 can complete the thermal management performance test of the components, and compared with the component model selection based on the simulation result of the full virtual model, the virtual-real combination test predicts the actual performance of different components more accurately.
Those of ordinary skill in the art will appreciate that the elements and method steps of each example described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the elements and steps of each example have been described generally in terms of functionality in the foregoing description to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the several embodiments provided in this application, it should be understood that the disclosed methods and systems may be implemented in other ways. For example, the above-described division of units is merely a logical function division, and there may be another division manner when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted or not performed. The units may or may not be physically separate, and components shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiment of the present invention.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention, and are intended to be included within the scope of the appended claims and description.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (8)
1. The utility model provides a three electric system's of electric automobile thermal management capability test device which characterized in that: comprising the following steps:
the test platform (3) is used for simulating the running environment of the system to be tested under the target working condition;
a digital twin calculation module (8) for calculating the heat exchange amount between the missing part and the thermal management system in the three-electric system in the system (1) to be measured;
the equivalent heat exchanger (2) is connected in series with the heat management system in the system to be tested (1), and the heat exchange amount between the equivalent heat exchanger (2) and the heat management system is the same as the heat exchange amount between the missing part and the heat management system;
a battery simulator (9) for providing power to the motor or for providing a working load to the power battery.
2. The device for testing the thermal management performance of the three-electric system of the electric automobile according to claim 1, wherein the device comprises;
the equivalent heat exchanger (2) is a plate heat exchanger, a first heat exchange cavity of the plate heat exchanger is connected in series with the heat management system, and a second heat exchange cavity of the plate heat exchanger is communicated with the equivalent analog source module (7);
the equivalent simulation source module (7) exchanges heat with the thermal management system through the equivalent heat exchanger (2).
3. The device for testing the thermal management performance of the three-electric system of the electric automobile according to claim 2, wherein,
the equivalent analog source module (7) comprises:
a constant temperature water tank (4) in which a heat exchange medium is arranged;
a pumping assembly (10) for driving a flow of a heat exchange medium;
the constant temperature water tank (4) is communicated with the liquid inlet end of the pumping assembly (10), the liquid outlet end of the pumping assembly (10) is communicated with the liquid inlet end of the heat exchange cavity II of the plate heat exchanger through the flow control valve (11), and the liquid outlet end of the heat exchange cavity II of the plate heat exchanger is communicated with the constant temperature water tank (4);
the constant temperature water tank (4) is communicated with the water chiller (6), and a heater (5) is arranged in the constant temperature water tank (4).
4. The device for testing the thermal management performance of the three-electric system of the electric automobile according to claim 3, wherein,
the liquid inlet end and the liquid outlet end of the second heat exchange cavity of the plate heat exchanger are respectively provided with a temperature sensor, and the liquid outlet end of the second heat exchange cavity of the plate heat exchanger is communicated with the constant temperature water tank (4) through a flowmeter.
5. A method for applying the electric automobile heat management performance test device according to any one of claims 1 to 4, which is characterized in that: the method comprises the following steps:
s1, simulating an operation environment of a system to be tested under a target working condition;
s2, if the three-electric system in the system to be tested (1) comprises an electric driving system and a power battery, performing thermal management performance test;
if the three-electric system in the system (1) to be tested lacks an electric power failure driving system or a power battery, an equivalent heat exchanger (2) is connected in series in a thermal management system in the system (1) to be tested, and the heat exchange quantity between the equivalent heat exchanger (2) and the thermal management system is the same as the heat exchange quantity between the missing part and the thermal management system;
s3, testing the thermal management performance of the thermal management system of the electric vehicle under the target working condition.
6. The issuing of a thermal management performance test for an electric vehicle three-wire system according to claim 5, wherein said step S1 comprises the steps of:
the operating environment of the three-electric system under the target working condition comprises the environment temperature, the humidity, the gas flow rate and the operating load of the three-electric system.
7. The issuing of a thermal management performance test for an electric vehicle three-wire system according to claim 5, wherein said step S2 comprises the steps of:
if the three-electric system in the system (1) to be tested lacks the electric drive system or the power battery, the heat exchange quantity between the missing part and the thermal management system under the target working condition is calculated, and the heat exchange quantity of the equivalent heat exchanger (2) is controlled to be matched with the heat exchange quantity between the missing part and the thermal management system.
8. The thermal management performance test issue for an electric vehicle three-wire system of claim 7, wherein: the method for controlling the matching of the heat exchange quantity of the equivalent heat exchanger (2) and the heat exchange quantity between the missing part and the heat management system comprises the following steps of collecting medium flow of the heat exchange medium in the second heat exchange cavity, collecting and calculating temperature difference of the heat exchange medium in the liquid inlet end and the liquid outlet end of the second heat exchange cavity, calculating the heat exchange quantity of the equivalent heat exchanger (2) through the temperature difference, the medium flow and the medium specific heat capacity, and adjusting the heat exchange quantity of the equivalent heat exchanger (2) through the flow control valve, wherein the heat exchange quantity of the equivalent heat exchanger (2) is matched with the heat exchange quantity between the missing part and the heat management system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310127751.9A CN116358889A (en) | 2023-02-16 | 2023-02-16 | Device and method for testing heat management performance of three-electric system of electric automobile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310127751.9A CN116358889A (en) | 2023-02-16 | 2023-02-16 | Device and method for testing heat management performance of three-electric system of electric automobile |
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| CN116358889A true CN116358889A (en) | 2023-06-30 |
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| CN202310127751.9A Pending CN116358889A (en) | 2023-02-16 | 2023-02-16 | Device and method for testing heat management performance of three-electric system of electric automobile |
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| CN (1) | CN116358889A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116973670A (en) * | 2023-09-22 | 2023-10-31 | 中汽研新能源汽车检验中心(天津)有限公司 | Electric automobile thermal management test method, equipment and medium |
| CN117074842A (en) * | 2023-10-17 | 2023-11-17 | 苏州英特模科技股份有限公司 | Heating simulation device and test system of battery pack |
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2023
- 2023-02-16 CN CN202310127751.9A patent/CN116358889A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116973670A (en) * | 2023-09-22 | 2023-10-31 | 中汽研新能源汽车检验中心(天津)有限公司 | Electric automobile thermal management test method, equipment and medium |
| CN116973670B (en) * | 2023-09-22 | 2023-12-12 | 中汽研新能源汽车检验中心(天津)有限公司 | Electric automobile thermal management test method, equipment and medium |
| CN117074842A (en) * | 2023-10-17 | 2023-11-17 | 苏州英特模科技股份有限公司 | Heating simulation device and test system of battery pack |
| CN117074842B (en) * | 2023-10-17 | 2024-01-30 | 苏州英特模科技股份有限公司 | Heating simulation device and test system of battery pack |
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