Battery PACK efficient test method and system

Abstract

The invention provides a battery PACK efficient test method and system in the technical field of battery PACK test. The method comprises the following steps: S1, creating an instrument management table and a test step management table; s2, after the battery PACK is transplanted in place, the names of the work steps without the front work steps are matched based on the test work step management table; s3, matching instruments with idle instrument states from the instrument management table based on the matched work step names, screening the matched instruments based on the occupation time, controlling the test robot to grab the screened instruments to test the battery PACK, and updating the instrument management table; s4, selecting the names of the remaining working steps from the test working step management table based on the front working steps, matching instruments from the instrument management table based on the names of the working steps, and sequentially executing tests of the remaining working steps; and S5, updating the test step management table after each battery PACK executes the test of all steps. The method has the advantages that the battery PACK test efficiency and the resource utilization rate are greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery PACK testing, and in particular to a battery PACK efficient testing method and system. Background Art

[0002] Battery PACK testing is an important process for evaluating battery performance and reliability, which usually involves multiple testing steps, such as battery pack insulation test, voltage withstand test, total voltage test, charge and discharge test and internal resistance test, etc. Each test step requires the use of different instruments for testing and analysis.

[0003] However, the current battery PACK testing process has some problems: First, since the test steps between different instruments require waiting time, the instrument utilization rate is low. While waiting to start or complete the test, many instruments are in standby or idle state and cannot fully utilize their performance; second, since each test step requires an independent instrument, a large amount of space resources is occupied, and the space utilization rate is low, which not only makes the test environment bulky and uneconomical, but also limits the expansion and layout of the instrument.

[0004] Therefore, how to provide a battery PACK efficient testing method and system to improve the efficiency and resource utilization of battery PACK testing has become a technical problem that needs to be solved urgently. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a battery PACK efficient testing method and system to improve the efficiency and resource utilization of the battery PACK test.

[0006] In a first aspect, the present invention provides a battery PACK efficient testing method, comprising the following steps:

[0007] Step S1, creating an instrument management table including at least an instrument name, an instrument state and an occupied time, and a test step management table including at least a step name, an instrument name, an operating time, a maximum occupied time and a preceding step;

[0008] Step S2: After the battery PACKs at different test stations are moved to their locations, the names of the steps without preceding steps are matched based on the test step management table;

[0009] Step S3, matching instruments whose instrument status is idle from the instrument management table based on the matched work step names, screening the matched instruments based on the occupied time, controlling the test robot to grab the screened instruments to perform tests on the battery PACK, and synchronously updating the instrument management table;

[0010] Step S4, selecting the remaining process step names from the test process step management table based on the preceding process step, matching instruments from the instrument management table based on the process step names, and performing tests on the remaining process steps in sequence;

[0011] Step S5: After each battery PACK completes the test of all process steps, the test process step management table is synchronously updated.

[0012] Furthermore, in step S1, the instrument management table and the test step management table are both stored in the MongoDB database;

[0013] The instrument names include at least a withstand voltage tester, an ammeter and a multimeter; the instrument status value is idle or busy; the preceding step value is none or a corresponding step name.

[0014] Furthermore, the step S2 is specifically as follows:

[0015] After the battery PACKs at different test stations are moved into place by the in-place sensors, the step names whose preceding step values ​​are none are matched based on the preceding step in the test step management table.

[0016] Furthermore, the step S3 is specifically as follows:

[0017] Based on the matched names of each process step, match the instruments whose instrument status is idle from the instrument management table, determine whether the number of matched instruments is greater than 1, and if so, select the instrument with the longest occupancy time, control the test robot to grab the selected instrument to perform the test on the battery PACK, and synchronously update the instrument status and occupancy time of the instrument management table;

[0018] If not, the test robot is controlled to grab a matching instrument to perform a test on the battery PACK, and the instrument status and occupancy time of the instrument management table are synchronously updated.

[0019] Furthermore, the step S5 is specifically as follows:

[0020] After each battery PACK has completed the test of all the steps in the test step management table, the maximum occupancy time in the test step management table is synchronously updated based on the occupancy time of the instrument used in the step that has passed the test, and the average occupancy time is calculated based on the occupancy time and the historical data of the instrument management table, and the test step management table is updated using the average occupancy time * 110% as the corresponding usage time.

[0021] In a second aspect, the present invention provides a battery PACK efficient testing system, comprising the following modules:

[0022] A management table creation module, used to create an instrument management table including at least an instrument name, an instrument state and an occupied time, and a test step management table including at least a step name, an instrument name, an operating time, a maximum occupied time and a preceding step;

[0023] A process step name matching module is used to match the process step names without preceding process steps based on the test process step management table after the battery PACKs at different test stations are moved into place;

[0024] The first test module is used to match the instruments whose instrument status is idle from the instrument management table based on the matched work step names, screen the matched instruments based on the occupied time, control the test robot to grab the screened instruments to perform tests on the battery PACK, and synchronously update the instrument management table;

[0025] A second test module is used to select the remaining process step names from the test process step management table based on the preceding process step, match the instrument from the instrument management table based on the process step name, and perform the test of the remaining process steps in sequence;

[0026] The test step management table update module is used to synchronously update the test step management table after each battery PACK completes the test of all steps.

[0027] Furthermore, in the management table creation module, the instrument management table and the test step management table are both stored in the MongoDB database;

[0028] The instrument names include at least a withstand voltage tester, an ammeter and a multimeter; the instrument status value is idle or busy; the preceding step value is none or a corresponding step name.

[0029] Furthermore, the process step name matching module is specifically used for:

[0030] After the battery PACKs at different test stations are moved into place by the in-place sensors, the step names whose preceding step values ​​are none are matched based on the preceding step in the test step management table.

[0031] Furthermore, the first test module is specifically used for:

[0032] Based on the matched names of each process step, match the instruments whose instrument status is idle from the instrument management table, determine whether the number of matched instruments is greater than 1, and if so, select the instrument with the longest occupancy time, control the test robot to grab the selected instrument to perform the test on the battery PACK, and synchronously update the instrument status and occupancy time of the instrument management table;

[0033] If not, the test robot is controlled to grab a matching instrument to perform a test on the battery PACK, and the instrument status and occupancy time of the instrument management table are synchronously updated.

[0034] Furthermore, the test step management table update module is specifically used for:

[0035] After each battery PACK has completed the test of all the steps in the test step management table, the maximum occupancy time in the test step management table is synchronously updated based on the occupancy time of the instrument used in the step that has passed the test, and the average occupancy time is calculated based on the occupancy time and the historical data of the instrument management table, and the test step management table is updated using the average occupancy time * 110% as the corresponding usage time.

[0036] The advantages of the present invention are:

[0037] By creating an instrument management table including instrument name, instrument status and occupancy time, and a test step management table including step name, instrument name, usage time, maximum occupancy time and preceding step; after the battery PACKs of different test stations are transplanted in place, first match the step names without preceding steps based on the test step management table, then match the instruments with idle status from the instrument management table, and after screening the matched instruments based on the occupancy time, control the test robot to grab the screened instruments to perform tests on the battery PACK, and synchronously update the instrument status and occupancy time in the instrument management table; then match the instrument names with idle status from the instrument management table based on the preceding step The remaining work step names are selected from the table, and the instruments are matched from the instrument management table based on the work step names to execute the remaining work step tests in sequence. Finally, after each battery PACK has completed the test of all work steps, the test step management table is updated synchronously; that is, the instruments required for each work step are managed through the instrument management table and the test step management table. One instrument can be used for the test of multiple work steps, and the tests between different work steps can be efficiently connected, reducing the switching and adjustment between work steps, improving the utilization of instruments in time and space, and effectively reducing the number of instruments and occupied space, which ultimately greatly improves the efficiency of battery PACK testing and resource utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The present invention will be further described below in conjunction with embodiments with reference to the accompanying drawings.

[0039] Figure 1 It is a flow chart of a battery PACK efficient testing method of the present invention.

[0040] Figure 2 It is a structural schematic diagram of a battery PACK high-efficiency testing system of the present invention. DETAILED DESCRIPTION

[0041] The overall idea of ​​the technical solution in the embodiments of the present application is as follows: through the instrument management table and the test step management table, the instruments required for each step are managed, one instrument can be used for testing multiple steps, and the tests between different steps can be efficiently connected, reducing the switching and adjustment between steps, improving the utilization of instruments in time and space, effectively reducing the number of instruments and occupied space, and thereby improving the efficiency of battery PACK testing and resource utilization.

[0042] Please refer to Figure 1 to Figure 2 As shown, a preferred embodiment of a battery PACK high-efficiency testing method of the present invention comprises the following steps:

[0043] Step S1, creating an instrument management table including at least an instrument name, an instrument state and an occupied time, and a test step management table including at least a step name, an instrument name, an operating time, a maximum occupied time and a preceding step;

[0044] The test step management table is exemplified as follows:

[0045] Step name Instrument Name Time of use Maximum occupancy time Pre-processing step Wiring harness none 30S 60S Battery in place Insulation test Withstand pressure tester 30S 60S none Pre-charge test multimeter 3S 60S Insulation test Charging test Ammeter 100S 160S Pre-charge test Discharge test Ammeter 100S 160S Pre-charge test Withstand voltage test Withstand pressure tester 60S 160S none ACR Test multimeter 3S 60S none Dismantle the wiring harness none 30S 60S All tests completed

[0046] Step S2: After the battery PACKs at different test stations are moved to their locations, the names of the steps without preceding steps are matched based on the test step management table;

[0047] Step S3, matching instruments whose instrument status is idle from the instrument management table based on the matched work step names, screening the matched instruments based on the occupied time, controlling the test robot to grab the screened instruments to perform tests on the battery PACK, and synchronously updating the instrument management table;

[0048] Step S4, selecting the remaining process step names from the test process step management table based on the preceding process step, matching instruments from the instrument management table based on the process step names, and performing tests on the remaining process steps in sequence;

[0049] Step S5: After each battery PACK completes the test of all process steps, the test process step management table is synchronously updated.

[0050] By applying the present invention, multiple test channels can be configured on multiple production lines or one production line to multiplex instruments and improve the utilization rate of the instruments.

[0051] In the step S1, the instrument management table and the test step management table are both stored in the MongoDB database;

[0052] The instrument names include at least a withstand voltage tester, an ammeter and a multimeter; the value of the instrument status is idle (Ready) or busy (Running); the value of the preceding step is none or the corresponding step name; the initial value of the occupied time is 0.

[0053] The step S2 is specifically as follows:

[0054] After the battery PACKs at different test stations are moved into place by the in-place sensors, the step names whose preceding step values ​​are none are matched based on the preceding step in the test step management table.

[0055] Traditionally, it is necessary to wait until all the process steps of the battery PACK at a test station are completed before the test at the next test station can be carried out. However, the present invention synchronizes and matches the instruments for testing based on the instrument management table and the test process step management table after the battery PACKs at other test stations are moved into place. In specific implementation, the weight of each instrument can be calculated based on factors such as the occupancy time and the instrument name, and the appropriate instrument can be selected for testing based on the weight.

[0056] The step S3 is specifically as follows:

[0057] Based on the matched names of each process step, match the instruments whose instrument status is idle from the instrument management table, determine whether the number of matched instruments is greater than 1, and if so, select the instrument with the longest occupancy time, control the test robot to grab the selected instrument to perform the test on the battery PACK, and synchronously update the instrument status and occupancy time of the instrument management table;

[0058] If not, the test robot is controlled to grab a matching instrument to perform a test on the battery PACK, and the instrument status and occupancy time of the instrument management table are synchronously updated.

[0059] In the specific implementation, a thread is run in the background to continuously refresh the instrument status and occupancy time in a cycle of 1S, so that the corresponding instrument can be called in time in the subsequent work steps. When updating the instrument status and occupancy time, transactions are used to ensure the consistency and integrity of the data, and optimistic locks or pessimistic locks are used to avoid data conflicts caused by concurrent updates. In the recording step, a fault-tolerant mechanism is added to the occupancy time used by the instrument, that is, the start time and end time of each test are recorded, so that it can automatically recover and recalculate the average occupancy time when an abnormal situation occurs.

[0060] The following are examples of instrument selection:

[0061] (1) The multimeter, ammeter, and withstand voltage tester are all in the ready state. Since the ammeter requires a pre-processing step, the multimeter and withstand voltage tester are given priority. Since the withstand voltage tester takes longer time than the multimeter, the withstand voltage tester is given priority for insulation testing or withstand voltage testing.

[0062] (2) Both the multimeter and the withstand voltage tester are in the Running state. The multimeter will take 5 seconds and the withstand voltage tester will take 3 seconds. Wait for the withstand voltage tester to finish the test before performing the insulation test or withstand voltage test.

[0063] (3) The multimeter and the withstand voltage tester are both in the Running state. The multimeter will take 3 seconds and the withstand voltage tester will take 5 seconds. Wait for the multimeter test to end before performing the ACR test.

[0064] The step S5 is specifically as follows:

[0065] After each battery PACK has completed the test of all the steps in the test step management table, the maximum occupancy time in the test step management table is synchronously updated based on the occupancy time of the instrument used in the step that passed the test, and the average occupancy time is calculated based on the occupancy time and the historical data of the instrument management table, and the average occupancy time*110% is used as the corresponding usage time to update the test step management table. That is, the step that failed the test may be abnormally terminated, and the occupancy time of the instrument may not be accurate, so it is not used to update the test step management table.

[0066] A preferred embodiment of a battery PACK high-efficiency testing system of the present invention includes the following modules:

[0067] A management table creation module, used to create an instrument management table including at least an instrument name, an instrument state and an occupied time, and a test step management table including at least a step name, an instrument name, an operating time, a maximum occupied time and a preceding step;

[0068] The test step management table is exemplified as follows:

[0069]

[0070]

[0071] A process step name matching module is used to match the process step names without preceding process steps based on the test process step management table after the battery PACKs at different test stations are moved into place;

[0072] The first test module is used to match the instruments whose instrument status is idle from the instrument management table based on the matched work step names, screen the matched instruments based on the occupied time, control the test robot to grab the screened instruments to perform tests on the battery PACK, and synchronously update the instrument management table;

[0073] A second test module is used to select the remaining process step names from the test process step management table based on the preceding process step, match the instrument from the instrument management table based on the process step name, and perform the test of the remaining process steps in sequence;

[0074] The test step management table update module is used to synchronously update the test step management table after each battery PACK completes the test of all steps.

[0075] By applying the present invention, multiple test channels can be configured on multiple production lines or one production line to multiplex instruments and improve the utilization rate of the instruments.

[0076] In the management table creation module, the instrument management table and the test step management table are both stored in the MongoDB database;

[0077] The instrument names include at least a withstand voltage tester, an ammeter and a multimeter; the value of the instrument status is idle (Ready) or busy (Running); the value of the preceding step is none or the corresponding step name; the initial value of the occupied time is 0.

[0078] The work step name matching module is specifically used for:

[0079] After the battery PACKs at different test stations are moved into place by the in-place sensors, the step names whose preceding step values ​​are none are matched based on the preceding step in the test step management table.

[0080] Traditionally, it is necessary to wait until all the process steps of the battery PACK at a test station are completed before the test at the next test station can be carried out. However, the present invention synchronizes and matches the instruments for testing based on the instrument management table and the test process step management table after the battery PACKs at other test stations are moved into place. In specific implementation, the weight of each instrument can be calculated based on factors such as the occupancy time and the instrument name, and the appropriate instrument can be selected for testing based on the weight.

[0081] The first test module is specifically used for:

[0082] Based on the matched names of each process step, match the instruments whose instrument status is idle from the instrument management table, determine whether the number of matched instruments is greater than 1, and if so, select the instrument with the longest occupancy time, control the test robot to grab the selected instrument to perform the test on the battery PACK, and synchronously update the instrument status and occupancy time of the instrument management table;

[0083] If not, the test robot is controlled to grab a matching instrument to perform a test on the battery PACK, and the instrument status and occupancy time of the instrument management table are synchronously updated.

[0084] In the specific implementation, a thread is run in the background to continuously refresh the instrument status and occupancy time in a cycle of 1S, so that the corresponding instrument can be called in time in the subsequent work steps. When updating the instrument status and occupancy time, transactions are used to ensure the consistency and integrity of the data, and optimistic locks or pessimistic locks are used to avoid data conflicts caused by concurrent updates. In the recording step, a fault-tolerant mechanism is added to the occupancy time used by the instrument, that is, the start time and end time of each test are recorded, so that it can automatically recover and recalculate the average occupancy time when an abnormal situation occurs.

[0085] The following are examples of instrument selection:

[0086] (1) The multimeter, ammeter, and withstand voltage tester are all in the ready state. Since the ammeter requires a pre-processing step, the multimeter and withstand voltage tester are given priority. Since the withstand voltage tester takes longer time than the multimeter, the withstand voltage tester is given priority for insulation testing or withstand voltage testing.

[0087] (2) Both the multimeter and the withstand voltage tester are in the Running state. The multimeter will take 5 seconds and the withstand voltage tester will take 3 seconds. Wait for the withstand voltage tester to finish the test before performing the insulation test or withstand voltage test.

[0088] (3) The multimeter and the withstand voltage tester are both in the Running state. The multimeter will take 3 seconds and the withstand voltage tester will take 5 seconds. Wait for the multimeter test to end before performing the ACR test.

[0089] The test step management table update module is specifically used for:

[0090] After each battery PACK has completed the test of all the steps in the test step management table, the maximum occupancy time in the test step management table is synchronously updated based on the occupancy time of the instrument used in the step that passed the test, and the average occupancy time is calculated based on the occupancy time and the historical data of the instrument management table, and the average occupancy time*110% is used as the corresponding usage time to update the test step management table. That is, the step that failed the test may be abnormally terminated, and the occupancy time of the instrument may not be accurate, so it is not used to update the test step management table.

[0091] In summary, the advantages of the present invention are:

[0092] By creating an instrument management table including instrument name, instrument status and occupancy time, and a test step management table including step name, instrument name, usage time, maximum occupancy time and preceding step; after the battery PACKs of different test stations are transplanted in place, first match the step names without preceding steps based on the test step management table, then match the instruments with idle status from the instrument management table, and after screening the matched instruments based on the occupancy time, control the test robot to grab the screened instruments to perform tests on the battery PACK, and synchronously update the instrument status and occupancy time in the instrument management table; then match the instrument names with idle status from the instrument management table based on the preceding step The remaining work step names are selected from the table, and the instruments are matched from the instrument management table based on the work step names to execute the remaining work step tests in sequence. Finally, after each battery PACK has completed the test of all work steps, the test step management table is updated synchronously; that is, the instruments required for each work step are managed through the instrument management table and the test step management table. One instrument can be used for the test of multiple work steps, and the tests between different work steps can be efficiently connected, reducing the switching and adjustment between work steps, improving the utilization of instruments in time and space, and effectively reducing the number of instruments and occupied space, which ultimately greatly improves the efficiency of battery PACK testing and resource utilization.

[0093] Although the specific implementation modes of the present invention are described above, those skilled in the art should understand that the specific implementation modes described are only illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A battery PACK efficient testing method, characterized by: The steps include: Step S1, creating an instrument management table including at least an instrument name, an instrument state and an occupied time, and a test step management table including at least a step name, an instrument name, an operating time, a maximum occupied time and a preceding step; Step S2: After the battery PACKs at different test stations are moved to their locations, the names of the steps without preceding steps are matched based on the test step management table; Step S3, matching instruments whose instrument status is idle from the instrument management table based on the matched work step names, screening the matched instruments based on the occupied time, controlling the test robot to grab the screened instruments to perform tests on the battery PACK, and synchronously updating the instrument management table; Step S4, selecting the remaining process step names from the test process step management table based on the preceding process step, matching instruments from the instrument management table based on the process step names, and performing tests on the remaining process steps in sequence; Step S5: After each battery PACK completes the test of all process steps, the test process step management table is synchronously updated.

2. A battery PACK high-efficiency testing method as claimed in claim 1, characterized in that: In the step S1, the instrument management table and the test step management table are both stored in the MongoDB database; The instrument names include at least a withstand voltage tester, an ammeter and a multimeter; the instrument status value is idle or busy; the preceding step value is none or a corresponding step name.

3. A battery PACK high-efficiency testing method as claimed in claim 1, characterized in that: The step S2 is specifically as follows: After the battery PACKs at different test stations are moved into place by the in-place sensors, the step names whose preceding step values ​​are none are matched based on the preceding step in the test step management table.

4. A battery PACK high-efficiency testing method as claimed in claim 1, characterized in that: The step S3 is specifically as follows: Based on the matched names of each process step, match the instruments whose instrument status is idle from the instrument management table, determine whether the number of matched instruments is greater than 1, and if so, select the instrument with the longest occupancy time, control the test robot to grab the selected instrument to perform the test on the battery PACK, and synchronously update the instrument status and occupancy time of the instrument management table; If not, the test robot is controlled to grab a matching instrument to perform a test on the battery PACK, and the instrument status and occupancy time of the instrument management table are synchronously updated.

5. A battery PACK high-efficiency testing method as claimed in claim 1, characterized in that: The step S5 is specifically as follows: After each battery PACK has completed the test of all the steps in the test step management table, the maximum occupancy time in the test step management table is synchronously updated based on the occupancy time of the instrument used in the step that has passed the test, and the average occupancy time is calculated based on the occupancy time and the historical data of the instrument management table, and the test step management table is updated using the average occupancy time * 110% as the corresponding usage time.

6. A battery PACK efficient testing system, characterized by: Includes the following modules: A management table creation module, used to create an instrument management table including at least an instrument name, an instrument state and an occupied time, and a test step management table including at least a step name, an instrument name, an operating time, a maximum occupied time and a preceding step; A process step name matching module is used to match the process step names without preceding process steps based on the test process step management table after the battery PACKs at different test stations are moved into place; The first test module is used to match the instruments whose instrument status is idle from the instrument management table based on the matched work step names, screen the matched instruments based on the occupied time, control the test robot to grab the screened instruments to perform tests on the battery PACK, and synchronously update the instrument management table; A second test module is used to select the remaining process step names from the test process step management table based on the preceding process step, match the instrument from the instrument management table based on the process step name, and perform the test of the remaining process steps in sequence; The test step management table update module is used to synchronously update the test step management table after each battery PACK completes the test of all steps.

7. A battery PACK high-efficiency testing system as claimed in claim 6, characterized in that: In the management table creation module, the instrument management table and the test step management table are both stored in the MongoDB database; The instrument names include at least a withstand voltage tester, an ammeter and a multimeter; the instrument status value is idle or busy; the preceding step value is none or a corresponding step name.

8. A battery PACK high-efficiency testing system as claimed in claim 6, characterized in that: The work step name matching module is specifically used for: After the battery PACKs at different test stations are moved into place by the in-place sensors, the step names whose preceding step values ​​are none are matched based on the preceding step in the test step management table.

9. A battery PACK high-efficiency testing system as claimed in claim 6, characterized in that: The first test module is specifically used for: Based on the matched names of each process step, match the instruments whose instrument status is idle from the instrument management table, determine whether the number of matched instruments is greater than 1, and if so, select the instrument with the longest occupancy time, control the test robot to grab the selected instrument to perform the test on the battery PACK, and synchronously update the instrument status and occupancy time of the instrument management table; If not, the test robot is controlled to grab a matching instrument to perform a test on the battery PACK, and the instrument status and occupancy time of the instrument management table are synchronously updated.

10. A battery PACK high-efficiency testing system as claimed in claim 6, characterized in that: The test step management table update module is specifically used for: After each battery PACK has completed the test of all the steps in the test step management table, the maximum occupancy time in the test step management table is synchronously updated based on the occupancy time of the instrument used in the step that has passed the test, and the average occupancy time is calculated based on the occupancy time and the historical data of the instrument management table, and the test step management table is updated using the average occupancy time * 110% as the corresponding usage time.

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