CN218630027U - Testing device for detecting active parallel type equalization function of battery management system - Google Patents
Testing device for detecting active parallel type equalization function of battery management system Download PDFInfo
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- CN218630027U CN218630027U CN202222829265.5U CN202222829265U CN218630027U CN 218630027 U CN218630027 U CN 218630027U CN 202222829265 U CN202222829265 U CN 202222829265U CN 218630027 U CN218630027 U CN 218630027U
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- 238000012360 testing method Methods 0.000 title claims abstract description 29
- 238000004088 simulation Methods 0.000 claims abstract description 16
- 230000008878 coupling Effects 0.000 claims abstract description 6
- 238000010168 coupling process Methods 0.000 claims abstract description 6
- 238000005859 coupling reaction Methods 0.000 claims abstract description 6
- 230000005611 electricity Effects 0.000 claims abstract description 3
- 238000011990 functional testing Methods 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 description 4
- 230000007774 longterm Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000013522 software testing Methods 0.000 description 1
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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 utility model discloses a testing arrangement for detecting balanced function of battery management system initiative parallel connection type, adjustable DC power supply's power output end is used for the bmu power supply interface coupling with battery management system, the detecting element includes a plurality of balanced functional test of initiatives frocks, every balanced functional test of initiatives frocks all includes a simulation positive electrode interface, every simulation positive electrode interface establishes ties a LED lighting circuit, adjacent LED lighting circuit concatenates, simulation negative electrode interface of last LED lighting circuit's end series connection, simulation positive electrode interface and simulation negative electrode interface and battery management system's bmu electricity core voltage acquisition interface coupling. The utility model discloses whether the luminous state that utilizes LED light emitting circuit proves that battery management system has output current's action, so, whether the luminous state through observing LED light emitting circuit can the active equalization function work of quick judgement battery management system normal, improves test work's efficiency.
Description
Technical Field
The utility model relates to a battery management system test equipment technical field especially relates to a testing arrangement for detecting balanced function of battery management system initiative parallel connection type.
Background
The BATTERY MANAGEMENT SYSTEM (BMS) is mainly used for intelligently managing and maintaining each BATTERY cell, preventing overcharge and overdischarge of the BATTERY, extending the service life of the BATTERY, and monitoring the state of the BATTERY. Due to the application of the high-capacity battery cell, the active parallel balancing technology of the BMS is applied in a large quantity. BMS need carry out functional test after production, and wherein, BMS's the balanced functional test of active type is important test item, when detecting, needs to dock group battery material object and BMS to verify the balanced function of active in the charge-discharge cycle test process in group battery material object, whether can not detect BMS's the balanced function of active comprehensively is normal, has the risk, leads to test work's inefficiency.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a testing arrangement for detecting balanced function of battery management system initiative parallel connection type mainly solves the balanced functional test of initiative of current battery management system and uses the group battery material object to verify, leads to the problem that efficiency of software testing is low.
In order to solve the technical problem, the technical scheme of the utility model as follows:
the utility model provides a testing arrangement for detecting balanced function of battery management system initiative parallel connection type, includes adjustable DC power supply and detecting element, adjustable DC power supply's power output end is used for the bmu power supply interface coupling with battery management system, detecting element includes a plurality of initiative balanced function test frock, every initiative balanced function test frock all includes a simulation positive electrode interface, every LED lighting circuit is established ties to the simulation positive electrode interface, and is adjacent LED lighting circuit concatenates, last one simulation negative electrode interface is established ties to LED lighting circuit's end, the simulation positive electrode interface with simulation negative electrode interface and battery management system's bmu electricity core voltage acquisition interface coupling.
In some embodiments, the LED lighting circuit includes a first branch including a removable resistor and a second branch including a fixed resistor and a light emitting diode connected in series.
The utility model has the advantages that: the detection unit is arranged and is used for simulating the electric core group connected in series, the physical electric core is not used for verification, the luminous state of the LED luminous circuit is used for proving whether the battery management system has the behavior of outputting current, therefore, whether the active equalization function of the battery management system works normally can be quickly judged by observing the luminous state of the LED luminous circuit, whether the position of the simulation anode interface opened in an active equalization mode is correct can also be judged, and the efficiency of test work is improved.
Moreover, the active equalization output power of the battery management system can be calculated by observing the output voltage and the output current of the adjustable direct-current power supply, the normal operation of a part of circuits with the active equalization function of the battery management system is ensured, the battery management system can be placed on the device for long-term operation, and the reliability of devices of the battery management system can be verified.
Drawings
Fig. 1 is a schematic diagram of a testing apparatus disclosed in an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the following will explain the contents of the present invention in detail with reference to the accompanying drawings and the detailed description. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the relevant portions of the present invention are shown in the drawings.
The embodiment provides a testing device for detecting an active parallel type equalization function of a battery management system, as shown in fig. 1, the testing device comprises an adjustable direct-current power supply 1 and a detection unit 2, a power output end of the adjustable direct-current power supply 1 is used for being coupled with a bmu power supply interface of the battery management system 3, the detection unit 2 comprises a plurality of active equalization function testing tools, each active equalization function testing tool comprises an analog positive electrode interface 201, each analog positive electrode interface 201 is connected with an LED light-emitting circuit 202 in series, adjacent LED light-emitting circuits 202 are connected in series, a terminal of the last LED light-emitting circuit 202 is connected with an analog negative electrode interface 203 in series, and the analog positive electrode interface 201 and the analog negative electrode interface 203 are coupled with a bmu cell voltage acquisition interface of the battery management system 3.
In this embodiment, the regulated dc power supply 1 is used to externally power the BMU of the battery management system 3.
The above-mentioned simulated positive electrode interface 201 refers to a physical interface for simulating the positive electrode of a single electric core, and similarly, the simulated negative electrode interface 203 refers to a physical interface for simulating the total negative electrode of the series-connected electric core group, and in this embodiment, the simulated positive electrode interface 201 includes B1+, B2+, and B3+. 9. The simulated negative electrode interface 203 only comprises B1-, B1-belongs to the total negative electrode of the whole simulated cell group. In summary, it can be seen that B1-represents the negative electrode of the first cell (which also belongs to the total negative electrode of the entire analog cell group because the plurality of LED light-emitting circuits 202 are connected in series), B1+ represents the positive electrode of the second cell, B2+ represents the positive electrode of the third cell, and so on.
In this embodiment, a detection unit 2 formed by connecting a plurality of LED light-emitting circuits 202 in series is arranged for simulating a series-connected electric core group, a physical electric core is not used for verification, and the light-emitting state of the LED light-emitting circuits 202 is used for proving whether the battery management system has a behavior of outputting current, so that whether the active equalization function of the battery management system 3 works normally can be quickly judged by observing the light-emitting state of the LED light-emitting circuits 202, and whether the position of the simulated positive electrode interface 201 which is actively equalized to be turned on is correct can also be judged, and the efficiency of test work is improved.
Moreover, the active equalization output power of the battery management system 3 can be calculated by observing the output voltage and the output current of the adjustable direct-current power supply 1, the normal operation of a part of circuits with the active equalization function of the battery management system 3 is ensured, the battery management system 3 can be placed on the device for long-term operation, and the reliability of devices of the battery management system 3 can be verified.
It should be noted that the active equalization logic of the battery management system is known, whether the software runs according to the known active equalization logic is judged through testing, in the testing process, the testing can be performed by adjusting the resistance value (equivalent to the internal resistance of the analog electric core) of the detachable resistor to meet the condition of active equalization on or off, and the LED lamp at the corresponding position can be turned on while the active equalization is turned on. For example, the first battery starts active equalization, and the light emitting diode emits light.
Optionally, the LED lighting circuit 202 includes a first branch and a second branch connected in parallel, the first branch includes a detachable resistor R1, and the second branch includes a fixed resistor R2 and light emitting diodes connected in series, in this embodiment, each light emitting diode is represented by a different label, such as LED1, LED1. For battery management systems with different active equalization output powers, the maximum active equalization output power can be tested by changing the resistance value of the detachable resistor R1 on the active equalization function testing tool. In this embodiment, taking the LED light emitting circuit 202 in the dotted line of fig. 1 as an example, the detachable resistor R1 is used to simulate a load of a battery core, and the light emitting diode LED1 is connected in parallel to two ends of the detachable resistor R1, when the battery management system actively performs a balancing operation, a voltage is output through the detachable resistor R1, and at the same time, the light emitting diode LED1 is also turned on, and the voltage of the first battery core is a voltage between B1+ and B1 +; the cathode of the second battery cell is connected with the anode of the first battery cell, so that the voltage of the second battery cell is the voltage between B1+ and B2 +.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (2)
1. The utility model provides a testing arrangement for detecting balanced function of battery management system initiative parallel connection type, a serial communication port, including adjustable DC power supply and detecting element, adjustable DC power supply's power output end is used for the bmu power supply interface coupling with battery management system, detecting element includes a plurality of initiative balanced function test fixture, every initiative balanced function test fixture all includes a simulation positive pole interface, every LED lighting circuit is established ties to the simulation positive pole interface, and is adjacent LED lighting circuit concatenates, last one simulation negative pole interface is established ties to LED lighting circuit's end, the simulation positive pole interface with simulation negative pole interface and battery management system's bmu electricity core voltage acquisition interface coupling.
2. The test device for testing active parallel type balancing function of battery management systems according to claim 1, wherein the LED lighting circuit comprises a first branch and a second branch connected in parallel, the first branch comprising a removable resistor, the second branch comprising a fixed resistor and a light emitting diode connected in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222829265.5U CN218630027U (en) | 2022-10-26 | 2022-10-26 | Testing device for detecting active parallel type equalization function of battery management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222829265.5U CN218630027U (en) | 2022-10-26 | 2022-10-26 | Testing device for detecting active parallel type equalization function of battery management system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218630027U true CN218630027U (en) | 2023-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222829265.5U Active CN218630027U (en) | 2022-10-26 | 2022-10-26 | Testing device for detecting active parallel type equalization function of battery management system |
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| Country | Link |
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| CN (1) | CN218630027U (en) |
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2022
- 2022-10-26 CN CN202222829265.5U patent/CN218630027U/en active Active
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