CN111929587B - Integrated detection method for power battery pack finished product - Google Patents
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- 238000001514 detection method Methods 0.000 title claims abstract description 101
- 238000012360 testing method Methods 0.000 claims abstract description 109
- 238000004891 communication Methods 0.000 claims abstract description 72
- 238000000034 method Methods 0.000 claims abstract description 27
- 230000005059 dormancy Effects 0.000 claims abstract description 11
- 238000003745 diagnosis Methods 0.000 claims abstract description 8
- 230000007958 sleep Effects 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 230000003213 activating effect Effects 0.000 claims 1
- 230000010354 integration Effects 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 238000011990 functional testing Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
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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]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
- G01R31/3842—Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
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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]
- G01R31/389—Measuring internal impedance, internal conductance or related variables
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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 discloses an integrated detection method for a power battery pack finished product, which comprises a detection system, wherein the system comprises an industrial personal computer control module, a communication module, a data acquisition module and a power supply module; the detection method comprises the steps that a finished product of the power battery pack is operated to a test station, a test wire harness is connected, a code is swept to start a test program, and then all functional items of the battery pack are tested, wherein the test comprises battery pack fault code diagnosis, buzzer detection, SOC indicator lamp detection, negative electrode and communication interface voltage detection, temperature sensor detection, voltage sensor detection, BMS software version writing and refreshing, information sending, LIN test, bluetooth test, current calibration, alternating current internal resistance test, direct current internal resistance test, dormancy and awakening function test and capacity detection. Compared with the prior art, the invention has the advantages that finished product detection items required by the power battery pack are subjected to an equipment integration test, faults and potential safety hazards which may occur in the whole battery pack assembling process are detected, and the detection efficiency is improved.
Description
Technical Field
The invention relates to the technical field of power lithium battery pack finished product detection, in particular to an integrated detection method for a power lithium battery pack finished product.
Background
When the finished product of the power battery pack is detected, all functions of the finished product of the battery pack need to be detected, and due to the fact that a plurality of detection items are available, a common factory uses a plurality of devices or manual work to separately test, and time and labor are wasted. Therefore, how to integrate the detection of the finished battery pack product and improve the detection efficiency are difficult problems which need to be solved urgently at present.
Disclosure of Invention
According to the integrated detection method for the power battery pack finished product, provided by the invention, the battery pack finished product detection items are gathered, the required items are detected in a one-stop manner, and the detection efficiency is improved.
In order to realize the purpose, the invention adopts the following technical scheme:
the integrated detection method for the finished product of the power battery pack comprises an integrated detection system for the finished product of the power battery pack, wherein the integrated detection system for the finished product of the power battery pack comprises an industrial personal computer control module, and upper computer software is arranged on the industrial personal computer control module;
the detection method comprises the following steps:
step 1, transferring a battery pack to a test station;
step 2, selecting or editing detection items and flows;
step 3, connecting a test wire harness and starting a test program;
step 4, establishing a test program through upper computer software to test the battery functional items;
step 5, setting a battery pack offline test state and setting a battery pack sleep mode through a test program;
step 6, ending the test program, and disconnecting the test wire harness;
and 7, taking the battery pack off line.
Further, the step 2 of selecting or editing the detection items and the flow includes a step of setting the detection items and the process specifications required by the process on the industrial personal computer according to the issued process file.
Further, the battery function item test in the step 4 includes battery pack fault code diagnosis, battery pack buzzer detection, battery pack SOC indicator lamp detection, battery pack negative electrode and communication interface voltage detection, battery pack temperature sensor detection, battery pack voltage sensor detection, battery pack BMS software version write-in and refresh, battery pack information transmission, battery pack LIN test, battery pack bluetooth test, battery pack current calibration, battery pack alternating current internal resistance test, battery pack direct current internal resistance test, battery pack sleep and wake-up function test, and battery pack capacity detection.
Further, the battery pack fault code diagnosis in the step 4 includes establishing UDS communication between the upper computer software and the battery pack, reading the fault code, determining whether to delete the fault code according to the provided fault code, wherein no fault code passes through the UDS communication, the fault code can be deleted and passes through the UDS communication after being deleted, and the fault code cannot be deleted for testing NG;
detecting a buzzer of the battery pack, wherein the detection comprises that upper computer software activates the buzzer through UDS communication, collects data of a decibel instrument uploaded by a test tool, and judges the rationality of decibel level;
detecting the SOC indicator lamp of the battery pack, wherein the detection comprises that upper computer software activates LEDs of the SOC indicator lamp through UDS communication and checks whether the LEDs are all lighted;
detecting the voltage of the cathode of the battery pack and the communication interface, including detecting the voltage between the cathode pole of the battery pack and the communication interface, and judging whether the voltage is within an allowable range;
detecting a battery pack temperature sensor, namely reading the temperature values of a battery pack BMS and a tooling table through upper computer software, and judging whether the temperature values are in an allowable range;
detecting a battery pack voltage sensor, namely reading each voltage value in a battery pack BMS through upper computer software, and judging the rationality of each voltage value according to a process step setting formula;
writing and refreshing a battery pack BMS software version, including binding the battery pack with a BMS serial number/BMS software version number through upper computer software, recording and uploading, downloading the BMS software in an HEX format into the BMS through CAN communication by the upper computer software, refreshing the BMS version, entering the next step if the writing is successful, otherwise, testing NG, and ending the testing;
sending battery pack information, including sending a product TTNR/battery pack serial number to a battery pack BMS through upper computer software and writing in;
the battery pack LIN test supports local area network LIN communication, establishes LIN connection with a battery pack BMS, reads BMS related voltage and current values through LIN communication, compares the BMS related voltage and current values read through CAN communication, and judges whether the values are in an allowable range;
the battery pack Bluetooth test supports a Bluetooth communication protocol, establishes Bluetooth connection with a battery pack BMS, reads related voltage and current values of the BMS through Bluetooth communication, compares the voltage and current values with related voltage and current values of the BMS read through CAN communication, and judges whether the voltage and current values are within an allowable range;
the method comprises the steps that battery pack current calibration is carried out, the battery pack is discharged according to set constant current, when discharging current is stable, equipment reads shunt voltage and shunt temperature data from a BMS, shunt resistance values are calculated according to a set formula, the calculated shunt resistance values are written into the BMS, whether the shunt resistance values are in a required range or not is judged, when the equipment obtains shunt resistance value writing feedback of the BMS, the shunt current is read from the BMS and compared with the discharging current, whether the shunt current is in the required range or not is judged, and after the writing feedback of the BMS is received, the equipment stops battery discharging;
testing the alternating current internal resistance of the battery pack, carrying out test calculation on the ACR of the battery pack according to the set working steps, and judging the rationality of the ACR;
and testing the direct current internal resistance of the battery pack, carrying out test calculation on the DCR of the battery pack according to the set working steps, reading the temperature rise value of the battery pack, and judging the rationality of the DCR and the temperature rise.
Further, the battery pack dormancy and awakening function test comprises that upper computer software sets the dormancy or awakening of the battery pack through UDS communication, and a system automatically detects whether the function can be normally used;
the battery pack capacity detection method comprises the steps that battery pack BMS set capacity values are read through UDS communication by upper computer software, and whether the battery pack BMS set capacity values conform to battery pack models or not is detected.
Further, in the step 5, a battery pack offline test state and a battery pack sleep mode are set through a test program;
the battery pack offline test state automatic setting function comprises that upper computer software writes in a battery pack BMS detection state through UDS communication; if pass, set up "pass", if fail, set up "error", and support and accept BMS and write into the result and feed back;
and setting a battery pack sleep mode, wherein the battery pack after qualified detection is set to the sleep mode, so that the electric quantity loss in the storage and transportation process of the battery pack finished product is reduced.
Furthermore, the system for the integrated detection of the finished product of the power battery pack comprises an industrial personal computer control module, a communication module, a data acquisition module and a power supply module;
the industrial control machine control module is provided with a test program for selecting test items, editing test steps and storing, processing and judging test data;
the communication module comprises CAN communication, LIN communication and Bluetooth communication and is used for communication between the industrial personal computer and the power battery pack BMS;
the data acquisition module is used for acquiring current, voltage and alternating current internal resistance of the power battery pack;
the power supply module is used for AC/DC and DC/DC conversion.
According to the technical scheme, the power battery pack finished product integrated detection method comprises the steps of running the power battery pack finished product to a test station, connecting a test wire harness, scanning codes to start a test program, and then starting tests of all functional items of the battery pack, wherein the tests comprise battery pack fault code diagnosis, buzzer detection, SOC indicator lamp detection, negative electrode and communication interface voltage detection, temperature sensor detection, voltage sensor detection, BMS software version writing and refreshing, information sending, LIN testing, bluetooth testing, current calibration, alternating current internal resistance testing, direct current internal resistance testing, dormancy and awakening function testing and capacity detection. The invention discloses a power battery pack finished product integrated detection system which comprises an industrial personal computer control module, a communication module, a data acquisition module and a power supply module.
Compared with the prior art, the invention has the advantages that finished product detection items required by the power battery pack are subjected to one-station equipment integration test, system tests such as electrical performance test, BMS (battery management system) verification, various functional tests and the like before the battery pack is delivered are completed in one station, faults and potential safety hazards which possibly occur in the whole battery pack assembling process are detected, and the detection efficiency is improved. And aiming at battery pack finished products of different models, required detection items and detection processes can be flexibly selected or edited according to the detection requirements of the process.
Meanwhile, the industrial personal computer can automatically generate a finished product detection report and is bound with the finished product codes of the battery pack, and all information of finished product detection of the battery pack can be traced only by scanning the codes.
Drawings
Fig. 1 is a flow chart of the integrated detection of the finished battery pack product according to the present invention;
fig. 2 is a block diagram of the integrated detection system for finished battery pack products according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.
As shown in fig. 1, the method for integrally detecting a finished product of a power battery pack according to the present embodiment is based on a system for integrally detecting a finished product of a power battery pack, wherein the system includes an industrial personal computer control module, a communication module, a data acquisition module and a power module;
the industrial control machine control module is provided with a test program for selecting test items, editing test steps and storing, processing and judging test data;
the communication module comprises CAN communication, LIN communication and Bluetooth communication and is used for communication between the industrial personal computer and the power battery pack BMS;
the data acquisition module is used for acquiring current, voltage and alternating current internal resistance of the power battery pack;
the power supply module is used for AC/DC and DC/DC conversion.
Specifically, the detection method comprises the following steps:
step 1, transferring the battery pack to a testing station.
And 2, selecting or editing detection items and flows.
And 3, connecting the test wire harness and starting a test program.
Step 4, diagnosing a fault code of the battery pack, detecting a buzzer, detecting an SOC indicator lamp, detecting voltage of a negative electrode and a communication interface, detecting a temperature sensor, detecting a voltage sensor, writing and refreshing BMS software version, sending information, carrying out LIN test, carrying out Bluetooth test, calibrating current, carrying out alternating current internal resistance test, carrying out direct current internal resistance test, testing a dormancy and awakening function and detecting capacity.
And 5, automatically setting a battery pack offline test state and setting a battery pack sleep mode.
And 6, ending the test program and disconnecting the test wire harness.
And 7, taking the battery pack off line.
Specifically, the step 2 of selecting or editing the detection items and the process includes setting the detection items and the process specifications required by the process on the industrial personal computer according to the issued process file.
In the battery pack fault code diagnosis function in the step 4, the upper computer software establishes UDS communication with the battery pack, reads the fault code, determines whether to delete the fault code according to the provided fault code, no fault code passes through, the fault code can be deleted and passes through after being deleted, and the fault code can not delete the test NG;
the battery pack buzzer detection function is realized, upper computer software activates a buzzer through UDS communication, collects data of a decibel meter uploaded by a test tool, and judges the rationality of decibel level;
the battery pack SOC indicator lamp detection function is realized, the upper computer software activates LEDs of the SOC indicator lamp through UDS communication and checks whether the LEDs are all on;
the voltage detection function of the battery pack cathode and the communication interface detects the voltage between the battery pack cathode pole and the communication interface and judges whether the voltage is within an allowable range;
the battery pack temperature sensor has a detection function, and the battery pack BMS temperature sensing and tooling table temperature sensing values are read through upper computer software, and whether the battery pack BMS temperature sensing and tooling table temperature sensing values are within an allowable range is judged;
the detection function of the battery pack voltage sensor reads each voltage value in the battery pack BMS through upper computer software, and the rationality of each voltage value is judged according to a process step setting formula;
the battery pack BMS software version is written into a refreshing function, the battery pack is bound with a BMS serial number/BMS software version number through upper computer software, the battery pack is uploaded, the upper computer software downloads the BMS software in an HEX format into the BMS through CAN communication, the BMS version is refreshed, if the battery pack BMS software is written successfully, the next step is carried out, otherwise, NG (NG) is tested, and the test is finished;
the battery pack information sending function is used for sending the TTNR/battery pack serial number of the product to the battery pack BMS through the upper computer software and writing the TTNR/battery pack serial number into the battery pack BMS;
the battery pack LIN test function supports local area network LIN communication, establishes LIN connection with a battery pack BMS, reads BMS related voltage and current values through LIN communication, compares the BMS related voltage and current values read through CAN communication, and judges whether the values are in an allowable range;
the battery pack Bluetooth test function supports a Bluetooth communication protocol, establishes Bluetooth connection with the battery pack BMS, reads related voltage and current values of the BMS through Bluetooth communication, compares the voltage and current values with the related voltage and current values of the BMS read through CAN communication, and judges whether the voltage and current values are within an allowable range;
the battery pack current calibration function comprises discharging the battery pack according to a set constant current, reading shunt voltage and shunt temperature data from the BMS by the equipment when the discharge current is stable, calculating shunt resistance according to a set formula, writing the calculated shunt resistance into the BMS, judging whether the shunt resistance is in a required range, reading the shunt current from the BMS and comparing the shunt current with the discharge current after the equipment obtains the shunt resistance write-in feedback of the BMS, judging whether the shunt current is in the required range, and stopping the discharge of the battery by the equipment after the write-in feedback of the BMS is received;
the battery pack alternating current internal resistance testing function is that the battery pack ACR is tested and calculated according to the set working steps, and the ACR rationality is judged;
the direct current internal resistance test function of the battery pack is realized, the DCR of the battery pack is tested and calculated according to the set working steps, meanwhile, the temperature rise value of the battery pack is read, and the rationality of the DCR and the temperature rise is judged;
testing the dormancy and awakening functions of the battery pack, wherein the upper computer software is communicated through the UDS to set the dormancy or awakening of the battery pack, and the system automatically detects whether the functions can be normally used or not;
battery package capacity detects, and host computer software passes through the UDS communication, reads battery package BMS and sets for the capacity value, detects the battery package and sets for the capacity value and whether conform with the battery package model.
Automatically setting the offline test state function of the battery pack in the step 5, and writing the offline test state function into the BMS test state of the battery pack through the UDS communication by upper computer software; if pass, if fail, set 'error' and support to accept BMS write result feedback. And setting a battery pack sleep mode, and setting the qualified battery pack to be the sleep mode, so that the electric quantity loss in the storage and transportation process of the finished battery pack is reduced.
According to the technical scheme, the power battery pack finished product integrated detection method comprises the steps of running the power battery pack finished product to a test station, connecting a test wire harness, scanning codes to start a test program, and then starting tests of all functional items of the battery pack, wherein the tests comprise battery pack fault code diagnosis, buzzer detection, SOC indicator lamp detection, negative electrode and communication interface voltage detection, temperature sensor detection, voltage sensor detection, BMS software version writing and refreshing, information sending, LIN testing, bluetooth testing, current calibration, alternating current internal resistance testing, direct current internal resistance testing, dormancy and awakening function testing and capacity detection.
Compared with the prior art, the invention has the advantages that finished product detection items required by the power battery pack are subjected to one-station equipment integration test, system tests such as electrical performance test, BMS (battery management system) verification, various functional tests and the like before the battery pack is delivered are completed in one station, faults and potential safety hazards which possibly occur in the whole battery pack assembling process are detected, and the detection efficiency is improved. Meanwhile, the industrial personal computer can automatically generate a finished product detection report and is bound with the finished product code of the battery pack, and all information of finished product detection of the battery pack can be traced only by scanning the code. And aiming at battery pack finished products of different models, required detection items and detection processes can be flexibly selected or edited according to the detection requirements of the process.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present 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 solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (5)
1. A method for integrally detecting a finished product of a power battery pack is characterized by comprising the following steps: the system comprises a power battery pack finished product integrated detection system, wherein the power battery pack finished product integrated detection system comprises an industrial personal computer control module, and upper computer software is arranged on the industrial personal computer control module;
the detection method comprises the following steps:
step 1, transferring a battery pack to a test station;
step 2, selecting or editing detection items and flows;
step 3, connecting a test wire harness and starting a test program;
step 4, establishing a test program through upper computer software to test the battery functional items;
step 5, setting a battery pack offline test state and setting a battery pack sleep mode through a test program;
step 6, ending the test program, and disconnecting the test wire harness;
step 7, inserting the battery pack off line;
the battery function item test in the step 4 comprises battery pack fault code diagnosis, battery pack buzzer detection, battery pack SOC indicator lamp detection, battery pack cathode and communication interface voltage detection, battery pack temperature sensor detection, battery pack voltage sensor detection, battery pack BMS software version write-in refreshing, battery pack information sending, battery pack LIN test, battery pack Bluetooth test, battery pack current calibration, battery pack alternating current internal resistance test, battery pack direct current internal resistance test, battery pack dormancy and awakening function test and battery pack capacity detection;
the battery pack fault code diagnosis in the step 4 comprises the steps that upper computer software establishes UDS communication with the battery pack, the fault code is read, whether the fault code is deleted or not is determined according to the provided fault code, no fault code passes through, the fault code can be deleted and passes through after being deleted, and the fault code cannot be deleted for testing NG;
detecting a buzzer of the battery pack, wherein the detecting comprises activating the buzzer through the UDS communication by upper computer software, acquiring data of a decibel instrument uploaded by a test tool, and judging the rationality of decibel level;
detecting the SOC indicator lamp of the battery pack, wherein the detection comprises that upper computer software activates LEDs of the SOC indicator lamp through UDS communication and checks whether the LEDs are all lighted;
detecting the voltage of the negative electrode of the battery pack and the communication interface, including detecting the voltage between the negative electrode post of the battery pack and the communication interface, and judging whether the voltage is in an allowable range;
detecting a battery pack temperature sensor, namely reading the temperature values of a battery pack BMS and a tooling table through upper computer software, and judging whether the temperature values are in an allowable range;
detecting a battery pack voltage sensor, namely reading each voltage value in a battery pack BMS through upper computer software, and judging the rationality of each voltage value according to a process step setting formula;
writing and refreshing a BMS software version of the battery pack, binding the battery pack with a BMS serial number/BMS software version number through upper computer software, recording and uploading, downloading the BMS software in an HEX format into the BMS through CAN communication by the upper computer software, refreshing the BMS version, entering the next step if the writing is successful, otherwise, testing NG, and ending the testing;
sending battery pack information, including sending a product TTNR/battery pack serial number to a battery pack BMS through upper computer software and writing in;
the battery pack LIN test supports local area network LIN communication, establishes LIN connection with the battery pack BMS, reads BMS related voltage and current values through LIN communication, compares the BMS related voltage and current values read through CAN communication, and judges whether the values are in an allowable range;
the battery pack Bluetooth test supports a Bluetooth communication protocol, establishes Bluetooth connection with a battery pack BMS, reads related voltage and current values of the BMS through Bluetooth communication, compares the voltage and current values with related voltage and current values of the BMS read through CAN communication, and judges whether the voltage and current values are within an allowable range;
the method comprises the steps that the current of a battery pack is calibrated, the battery pack is discharged according to a set constant current, when the discharge current is stable, the equipment reads shunt voltage and shunt temperature data from the BMS, the shunt resistance value is calculated according to a set formula, the shunt resistance value obtained through calculation is written into the BMS, whether the shunt resistance value is in a required range or not is judged, when the equipment obtains the shunt resistance value write feedback of the BMS, the shunt current is read from the BMS and compared with the discharge current, whether the shunt current is in the required range or not is judged, and after the write feedback of the BMS is received, the equipment stops the discharge of the battery;
testing the alternating current internal resistance of the battery pack, carrying out test calculation on the ACR of the battery pack according to the set working steps, and judging the rationality of the ACR;
and testing the direct current internal resistance of the battery pack, carrying out test calculation on the DCR of the battery pack according to the set working steps, reading the temperature rise value of the battery pack, and judging the rationality of the DCR and the temperature rise.
2. The integrated detection method for the power battery pack finished product as claimed in claim 1, wherein: the step 2 of selecting or editing the detection items and the flow comprises the steps of setting the detection items and the process required by the process on the industrial personal computer according to the issued process file.
3. The integrated detection method for the power battery pack finished product as claimed in claim 2, wherein:
the battery pack dormancy and awakening function test comprises that upper computer software sets dormancy or awakening of the battery pack through UDS communication, and a system automatically detects whether the function can be normally used or not;
the battery pack capacity detection method comprises the steps that battery pack BMS set capacity values are read through UDS communication by upper computer software, and whether the battery pack BMS set capacity values conform to battery pack models or not is detected.
4. The integrated detection method for the power battery pack finished product as claimed in claim 1, wherein: step 5, setting a battery pack offline test state and a battery pack sleep mode through a test program;
the function of automatically setting the offline test state of the battery pack comprises that upper computer software writes the detection state of the battery pack BMS through UDS communication; if pass, if fail, set 'error', and support to receive BMS write result feedback;
and setting a battery pack sleep mode, wherein the battery pack after qualified detection is set to the sleep mode, so that the electric quantity loss in the storage and transportation process of the battery pack finished product is reduced.
5. The integrated detection method for the power battery pack finished product as claimed in claim 1, wherein: the system for the integrated detection of the power battery pack finished product comprises an industrial personal computer control module, a communication module, a data acquisition module and a power supply module;
the industrial control machine control module is provided with a test program for selecting test items, editing test steps and storing, processing and judging test data;
the communication module comprises CAN communication, LIN communication and Bluetooth communication and is used for communication between the industrial personal computer and the power battery pack BMS;
the data acquisition module is used for acquiring current, voltage and alternating current internal resistance of the power battery pack;
the power supply module is used for AC/DC and DC/DC conversion.
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| CN114137432A (en) * | 2021-11-26 | 2022-03-04 | 深圳市新威尔电子有限公司 | Channel automatic locking detection method |
| CN114035080A (en) * | 2021-12-06 | 2022-02-11 | 北京通敏未来动力科技有限公司 | Automobile power battery charging and discharging test system |
| CN114720896B (en) * | 2022-02-28 | 2023-10-24 | 福建星云检测技术有限公司 | Battery test step identification method and system |
| CN115166537B (en) * | 2022-08-01 | 2024-07-12 | 重庆云宸新能源科技有限公司 | Battery current calibration method capable of flexibly configuring detection steps |
| CN115166523B (en) * | 2022-09-06 | 2022-12-02 | 江苏时代新能源科技有限公司 | Mobile battery state detection device, system and method |
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