A method and system for self-charge and self-discharge aging testing of battery testing equipment

Abstract

The present invention provides a method and system for self-charging and self-discharging aging test of battery testing equipment in the technical field of aging test of battery testing equipment. The method comprises: step S1, grouping each battery testing equipment to be aging tested in pairs, connecting the input end to the common terminal of the three-phase voltage, and connecting the output end to the energy storage isolation device; step S2, the battery testing equipment in the same group negotiate with each other, one of which adjusts the working mode to the CV mode, and the other adjusts the working mode to the DC mode; step S3, after each battery testing equipment verifies the received aging test instruction, the battery testing equipment in the CV mode charges the battery testing equipment in the DC mode, and the battery testing equipment in the DC mode discharges the battery testing equipment in the CV mode to perform the aging test; step S4, when the aging test meets the stop test condition carried by the aging test instruction, stop the aging test. The advantage of the present invention is that it greatly reduces the aging test cost of the battery testing equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of battery testing equipment aging testing, and in particular to a battery testing equipment self-charging and self-discharging aging testing method and system. Background Art

[0002] Aging testing simulates the use of products in natural environments, allowing the products to experience long-term use in a short period of time, and detects possible problems that may arise in long-term use of the products in order to improve the reliability and stability of the products. Battery testing equipment also needs to undergo aging testing.

[0003] As battery testing equipment is updated and iterated, the output power is getting higher and higher, and the power of the load equipment used for aging testing is also getting higher and higher, the price is getting higher and higher, and the power consumption is getting higher and higher. When battery testing equipment is mass-produced, the power demand required for aging testing will also increase, the floor space will increase, the utilization rate per unit area will decrease, and the use of third-party equipment will be required, making the cost of aging testing high.

[0004] Therefore, how to provide a self-charging and self-discharging aging test method and system for battery testing equipment to reduce the aging test cost of the battery testing equipment 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 self-charging and self-discharging aging test method and system for battery testing equipment, so as to reduce the aging test cost of the battery testing equipment.

[0006] In a first aspect, the present invention provides a self-charging and self-discharging aging test method for a battery testing device, comprising the following steps:

[0007] Step S1, group the battery test devices to be tested for aging into groups of two, connect the input end to the common terminal of the three-phase voltage, and connect the output end to the energy storage isolation device;

[0008] Step S2: The battery testing devices in the same group negotiate with each other, one of them adjusts the working mode to the CV mode, and the other adjusts the working mode to the DC mode;

[0009] Step S3: After each battery testing device verifies the received aging test instruction, the battery testing device in CV mode charges the battery testing device in DC mode, and the battery testing device in DC mode discharges the battery testing device in CV mode to perform the aging test;

[0010] Step S4, when the aging test meets the stop test condition carried by the aging test instruction, stop the aging test;

[0011] Step S5: Each battery testing device records an aging test log in real time and stores the aging test log.

[0012] Furthermore, the step S2 is specifically as follows:

[0013] The battery testing devices in the same group establish a local area network connection with each other through the LAN port, negotiate the working mode based on the device number, adjust the working mode of the battery testing device with a larger device number to CV mode, and adjust the working mode of the battery testing device with a smaller device number to DC mode.

[0014] Furthermore, the step S3 is specifically as follows:

[0015] Each battery testing device parses the received aging test instruction to obtain a stop test condition, a test parameter, a device number, a timestamp, and a first hash value, where the first hash value is obtained by performing a hash calculation on the stop test condition, the test parameter, the device number, and the timestamp;

[0016] Each battery testing device performs a hash calculation on the stop test condition, test parameters, device number and timestamp to obtain a second hash value, and determines whether the second hash value is equal to the first hash value. If not, the integrity check fails and the process ends; if so, the integrity check passes, and a time validity check is performed using the timestamp, and then a legitimacy check is performed on the parsed device number based on the local device number. Then, the CV mode battery testing device charges the DC mode battery testing device based on the test parameters, and the DC mode battery testing device discharges the CV mode battery testing device based on the test parameters to perform an aging test.

[0017] Furthermore, in step S4, the test stop condition is the test duration or the number of charge and discharge cycles.

[0018] Furthermore, the step S5 is specifically as follows:

[0019] Each battery testing device records in real time an aging test log including at least the test time, device number, test duration, voltage value, current value and temperature value, generates an aging parameter curve based on the aging test log, performs aging monitoring based on the aging parameter curve, generates aging monitoring results, and stores the aging test log and aging monitoring results.

[0020] In a second aspect, the present invention provides a self-charging and self-discharging aging test system for a battery testing device, comprising the following modules:

[0021] An initialization module is used to group the battery test devices to be tested for aging into groups of two, connect the input end to the common terminal of the three-phase voltage, and connect the output end to the energy storage isolation device;

[0022] A working mode adjustment module, used for battery test devices in the same group to negotiate with each other, one of which adjusts the working mode to CV mode, and the other adjusts the working mode to DC mode;

[0023] An aging test module, which is used for each battery test device to verify the received aging test instruction, and then the battery test device in CV mode charges the battery test device in DC mode, and the battery test device in DC mode discharges the battery test device in CV mode, so as to perform the aging test;

[0024] A stop test module, used for stopping the aging test when the aging test meets the stop test condition carried by the aging test instruction;

[0025] The aging test log management module is used for each battery testing device to record the aging test log in real time and store the aging test log.

[0026] Furthermore, the working mode adjustment module is specifically used to:

[0027] The battery testing devices in the same group establish a local area network connection with each other through the LAN port, negotiate the working mode based on the device number, adjust the working mode of the battery testing device with a larger device number to CV mode, and adjust the working mode of the battery testing device with a smaller device number to DC mode.

[0028] Furthermore, the aging test module is specifically used for:

[0029] Each battery testing device parses the received aging test instruction to obtain a stop test condition, a test parameter, a device number, a timestamp, and a first hash value, where the first hash value is obtained by performing a hash calculation on the stop test condition, the test parameter, the device number, and the timestamp;

[0030] Each battery testing device performs a hash calculation on the stop test condition, test parameters, device number and timestamp to obtain a second hash value, and determines whether the second hash value is equal to the first hash value. If not, the integrity check fails and the process ends; if so, the integrity check passes, and a time validity check is performed using the timestamp, and then a legitimacy check is performed on the parsed device number based on the local device number. Then, the CV mode battery testing device charges the DC mode battery testing device based on the test parameters, and the DC mode battery testing device discharges the CV mode battery testing device based on the test parameters to perform an aging test.

[0031] Furthermore, in the stop test module, the stop test condition is the test duration or the number of charge and discharge cycles.

[0032] Furthermore, the aging test log management module is specifically used for:

[0033] Each battery testing device records in real time an aging test log including at least the test time, device number, test duration, voltage value, current value and temperature value, generates an aging parameter curve based on the aging test log, performs aging monitoring based on the aging parameter curve, generates aging monitoring results, and stores the aging test log and aging monitoring results.

[0034] The advantages of the present invention are:

[0035] 1. Group the battery test devices to be tested by aging into groups of two, connect the input end to the common terminal of the three-phase voltage, and connect the output end to the energy storage isolation device. The battery test devices in the same group negotiate with each other, one of them adjusts the working mode to CV mode, and the other adjusts the working mode to DC mode; then each battery test device verifies the received aging test instruction, and the battery test device in CV mode charges the battery test device in DC mode, and the battery test device in DC mode discharges the battery test device in CV mode to perform the aging test. When the aging test meets the stop test condition carried by the aging test instruction, the aging test is stopped, and each battery test device records the aging test log in real time and stores the aging test log; that is, the working modes of the battery test devices in groups of two are adjusted to CV mode and DC mode respectively, so that the two battery test devices can charge and discharge each other, which can not only reduce the power loss, but also do not need to rely on third-party equipment, effectively reduce the power demand and occupied area, thereby greatly reducing the aging test cost of the battery test equipment.

[0036] 2. By recording the aging test log including at least the test time, equipment number, test duration, voltage value, current value and temperature value in real time, it is convenient for later traceability. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The present invention will be further described below in conjunction with embodiments with reference to the accompanying drawings.

[0038] Figure 1 The present invention discloses a flow chart of a self-charging and self-discharging aging test method for battery testing equipment.

[0039] Figure 2 The present invention is a structural schematic diagram of a self-charging and self-discharging aging test system for battery testing equipment. DETAILED DESCRIPTION

[0040] The overall idea of ​​the technical solution in the embodiments of the present application is as follows: the working modes of battery testing devices in a group of two are adjusted to CV mode and DC mode respectively, so that the two battery testing devices can charge and discharge each other, which not only reduces power loss, but also eliminates the need for third-party equipment, effectively reduces power demand and occupied area, thereby reducing the aging test cost of the battery testing equipment.

[0041] Please refer to Figure 1 to Figure 2 As shown, a preferred embodiment of a self-charging and self-discharging aging test method for a battery testing device of the present invention comprises the following steps:

[0042] Step S1, group the battery test devices to be tested for aging into groups of two, connect the input end to the common terminal of the three-phase voltage, and connect the output end to the energy storage isolation device;

[0043] Step S2, the battery testing devices in the same group negotiate with each other, one of them adjusts the working mode to CV mode (constant voltage mode), and the other adjusts the working mode to DC mode (direct current mode);

[0044] Step S3: After each battery test device verifies the received aging test instruction, the battery test device in CV mode charges the battery test device in DC mode, and the battery test device in DC mode discharges the battery test device in CV mode to perform the aging test; in specific implementation, a control strategy can be added to suppress the oscillation during the charging and discharging process so that the energy reaches a balanced state;

[0045] Step S4, when the aging test meets the stop test condition carried by the aging test instruction, stop the aging test;

[0046] Step S5: Each battery testing device records an aging test log in real time and stores the aging test log.

[0047] In specific implementation, it includes a first aging test mode of self-charging and self-discharging through battery testing equipment, a second aging test mode of self-charging and self-discharging through common busbar of battery testing equipment, and a third aging test mode of self-charging and self-discharging of multiple battery testing equipment.

[0048] The step S2 is specifically as follows:

[0049] The battery testing devices in the same group establish a local area network connection with each other through the LAN port, negotiate the working mode based on the device number, adjust the working mode of the battery testing device with a larger device number to CV mode, and adjust the working mode of the battery testing device with a smaller device number to DC mode.

[0050] The step S3 is specifically as follows:

[0051] Each battery testing device parses the received aging test instruction to obtain a stop test condition, a test parameter, a device number, a timestamp, and a first hash value, where the first hash value is obtained by performing a hash calculation on the stop test condition, the test parameter, the device number, and the timestamp;

[0052] Each battery testing device performs a hash calculation on the stop test condition, test parameters, device number and timestamp to obtain a second hash value, and determines whether the second hash value is equal to the first hash value. If not, the integrity check fails and the process ends; if so, the integrity check passes, and a time validity check is performed using the timestamp, and then a legitimacy check is performed on the parsed device number based on the local device number. Then, the CV mode battery testing device charges the DC mode battery testing device based on the test parameters, and the DC mode battery testing device discharges the CV mode battery testing device based on the test parameters to perform an aging test.

[0053] In step S4, the test stop condition is the test duration or the number of charge and discharge cycles.

[0054] The step S5 is specifically as follows:

[0055] Each battery testing device records in real time an aging test log including at least the test time, device number, test duration, voltage value, current value and temperature value, generates an aging parameter curve based on the aging test log, performs aging monitoring based on the aging parameter curve, generates aging monitoring results, and stores the aging test log and aging monitoring results.

[0056] By recording the aging test log including at least the test time, equipment number, test duration, voltage value, current value and temperature value in real time, it is convenient for later traceability.

[0057] A preferred embodiment of a self-charging and self-discharging aging test system for a battery testing device of the present invention comprises the following modules:

[0058] An initialization module is used to group the battery test devices to be tested for aging into groups of two, connect the input end to the common terminal of the three-phase voltage, and connect the output end to the energy storage isolation device;

[0059] The working mode adjustment module is used for the battery test devices in the same group to negotiate with each other, one of them adjusts the working mode to CV mode (constant voltage mode), and the other adjusts the working mode to DC mode (direct current mode);

[0060] The aging test module is used for each battery test device to verify the received aging test instruction, and the battery test device in CV mode charges the battery test device in DC mode, and the battery test device in DC mode discharges the battery test device in CV mode to perform the aging test; in specific implementation, a control strategy can be added to suppress the oscillation during the charging and discharging process so that the energy reaches a balanced state;

[0061] A stop test module, used for stopping the aging test when the aging test meets the stop test condition carried by the aging test instruction;

[0062] The aging test log management module is used for each battery testing device to record the aging test log in real time and store the aging test log.

[0063] In specific implementation, it includes a first aging test mode of self-charging and self-discharging through battery testing equipment, a second aging test mode of self-charging and self-discharging through common busbar of battery testing equipment, and a third aging test mode of self-charging and self-discharging of multiple battery testing equipment.

[0064] The working mode adjustment module is specifically used for:

[0065] The battery testing devices in the same group establish a local area network connection with each other through the LAN port, negotiate the working mode based on the device number, adjust the working mode of the battery testing device with a larger device number to CV mode, and adjust the working mode of the battery testing device with a smaller device number to DC mode.

[0066] The aging test module is specifically used for:

[0067] Each battery testing device parses the received aging test instruction to obtain a stop test condition, a test parameter, a device number, a timestamp, and a first hash value, where the first hash value is obtained by performing a hash calculation on the stop test condition, the test parameter, the device number, and the timestamp;

[0068] Each battery testing device performs a hash calculation on the stop test condition, test parameters, device number and timestamp to obtain a second hash value, and determines whether the second hash value is equal to the first hash value. If not, the integrity check fails and the process ends; if so, the integrity check passes, and a time validity check is performed using the timestamp, and then a legitimacy check is performed on the parsed device number based on the local device number. Then, the CV mode battery testing device charges the DC mode battery testing device based on the test parameters, and the DC mode battery testing device discharges the CV mode battery testing device based on the test parameters to perform an aging test.

[0069] In the stop test module, the stop test condition is the test duration or the number of charge and discharge cycles.

[0070] The aging test log management module is specifically used for:

[0071] Each battery testing device records in real time an aging test log including at least the test time, device number, test duration, voltage value, current value and temperature value, generates an aging parameter curve based on the aging test log, performs aging monitoring based on the aging parameter curve, generates aging monitoring results, and stores the aging test log and aging monitoring results.

[0072] By recording the aging test log including at least the test time, equipment number, test duration, voltage value, current value and temperature value in real time, it is convenient for later traceability.

[0073] In summary, the advantages of the present invention are:

[0074] 1. Group the battery test devices to be tested by aging into groups of two, connect the input end to the common terminal of the three-phase voltage, and connect the output end to the energy storage isolation device. The battery test devices in the same group negotiate with each other, one of them adjusts the working mode to CV mode, and the other adjusts the working mode to DC mode; then each battery test device verifies the received aging test instruction, and the battery test device in CV mode charges the battery test device in DC mode, and the battery test device in DC mode discharges the battery test device in CV mode to perform the aging test. When the aging test meets the stop test condition carried by the aging test instruction, the aging test is stopped, and each battery test device records the aging test log in real time and stores the aging test log; that is, the working modes of the battery test devices in groups of two are adjusted to CV mode and DC mode respectively, so that the two battery test devices can charge and discharge each other, which can not only reduce the power loss, but also do not need to rely on third-party equipment, effectively reduce the power demand and occupied area, thereby greatly reducing the aging test cost of the battery test equipment.

[0075] 2. By recording the aging test log including at least the test time, equipment number, test duration, voltage value, current value and temperature value in real time, it is convenient for later traceability.

[0076] 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 self-charging and self-discharging aging test method for battery testing equipment, characterized in that: The steps include: Step S1, group the battery test devices to be tested for aging into groups of two, connect the input end to the common terminal of the three-phase voltage, and connect the output end to the energy storage isolation device; Step S2: The battery testing devices in the same group negotiate with each other, one of them adjusts the working mode to the CV mode, and the other adjusts the working mode to the DC mode; Step S3: After each battery testing device verifies the received aging test instruction, the battery testing device in CV mode charges the battery testing device in DC mode, and the battery testing device in DC mode discharges the battery testing device in CV mode to perform the aging test; Step S4, when the aging test meets the stop test condition carried by the aging test instruction, stop the aging test; Step S5: Each battery testing device records an aging test log in real time and stores the aging test log.

2. A self-charging and self-discharging aging test method for battery testing equipment as claimed in claim 1, characterized in that: The step S2 is specifically as follows: The battery testing devices in the same group establish a local area network connection with each other through the LAN port, negotiate the working mode based on the device number, adjust the working mode of the battery testing device with a larger device number to CV mode, and adjust the working mode of the battery testing device with a smaller device number to DC mode.

3. A self-charging and self-discharging aging test method for battery testing equipment as claimed in claim 1, characterized in that: The step S3 is specifically as follows: Each battery testing device parses the received aging test instruction to obtain a stop test condition, a test parameter, a device number, a timestamp, and a first hash value, where the first hash value is obtained by performing a hash calculation on the stop test condition, the test parameter, the device number, and the timestamp; Each battery testing device performs a hash calculation on the test stop condition, test parameters, device number and timestamp to obtain a second hash value, and determines whether the second hash value is equal to the first hash value. If not, the integrity check fails and the process ends; If so, the integrity check passes, and the timeliness check is performed using the timestamp. The legitimacy of the parsed device number is then checked based on the local device number. Then the CV mode battery testing device charges the DC mode battery testing device based on the test parameters, and the DC mode battery testing device discharges the CV mode battery testing device based on the test parameters to perform an aging test.

4. A self-charging and self-discharging aging test method for battery testing equipment as claimed in claim 1, characterized in that: In step S4, the test stop condition is the test duration or the number of charge and discharge cycles.

5. A self-charging and self-discharging aging test method for battery testing equipment as claimed in claim 1, characterized in that: The step S5 is specifically as follows: Each battery testing device records in real time an aging test log including at least the test time, device number, test duration, voltage value, current value and temperature value, generates an aging parameter curve based on the aging test log, performs aging monitoring based on the aging parameter curve, generates aging monitoring results, and stores the aging test log and aging monitoring results.

6. A self-charging and self-discharging aging test system for battery testing equipment, characterized in that: Includes the following modules: An initialization module is used to group the battery test devices to be tested for aging into groups of two, connect the input end to the common terminal of the three-phase voltage, and connect the output end to the energy storage isolation device; A working mode adjustment module, used for battery test devices in the same group to negotiate with each other, one of which adjusts the working mode to CV mode, and the other adjusts the working mode to DC mode; An aging test module, which is used for each battery test device to verify the received aging test instruction, and then the battery test device in CV mode charges the battery test device in DC mode, and the battery test device in DC mode discharges the battery test device in CV mode, so as to perform the aging test; A stop test module, used for stopping the aging test when the aging test meets the stop test condition carried by the aging test instruction; The aging test log management module is used for each battery testing device to record the aging test log in real time and store the aging test log.

7. A battery testing equipment self-charging and self-discharging aging testing system as claimed in claim 6, characterized in that: The working mode adjustment module is specifically used for: The battery testing devices in the same group establish a local area network connection with each other through the LAN port, negotiate the working mode based on the device number, adjust the working mode of the battery testing device with a larger device number to CV mode, and adjust the working mode of the battery testing device with a smaller device number to DC mode.

8. A battery testing equipment self-charging and self-discharging aging testing system as claimed in claim 6, characterized in that: The aging test module is specifically used for: Each battery testing device parses the received aging test instruction to obtain a stop test condition, a test parameter, a device number, a timestamp, and a first hash value, where the first hash value is obtained by performing a hash calculation on the stop test condition, the test parameter, the device number, and the timestamp; Each battery testing device performs a hash calculation on the test stop condition, test parameters, device number and timestamp to obtain a second hash value, and determines whether the second hash value is equal to the first hash value. If not, the integrity check fails and the process ends; If so, the integrity check passes, and the timeliness check is performed using the timestamp. The legitimacy of the parsed device number is then checked based on the local device number. Then the CV mode battery testing device charges the DC mode battery testing device based on the test parameters, and the DC mode battery testing device discharges the CV mode battery testing device based on the test parameters to perform an aging test.

9. A battery testing equipment self-charging and self-discharging aging testing system as claimed in claim 6, characterized in that: In the stop test module, the stop test condition is the test duration or the number of charge and discharge cycles.

10. A battery testing equipment self-charging and self-discharging aging testing system as claimed in claim 6, characterized in that: The aging test log management module is specifically used for: Each battery testing device records in real time an aging test log including at least the test time, device number, test duration, voltage value, current value and temperature value, generates an aging parameter curve based on the aging test log, performs aging monitoring based on the aging parameter curve, generates aging monitoring results, and stores the aging test log and aging monitoring results.

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