CN112083344A - Battery charging test system and method - Google Patents
Battery charging test system and method Download PDFInfo
- Publication number
- CN112083344A CN112083344A CN202010984943.8A CN202010984943A CN112083344A CN 112083344 A CN112083344 A CN 112083344A CN 202010984943 A CN202010984943 A CN 202010984943A CN 112083344 A CN112083344 A CN 112083344A
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- China
- Prior art keywords
- charging
- circuit
- temperature
- power supply
- main controller
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- 238000012360 testing method Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000004088 simulation Methods 0.000 claims abstract description 11
- 238000012545 processing Methods 0.000 claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000011076 safety test Methods 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 1
- 238000013100 final test Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00309—Overheat or overtemperature protection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/007188—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
- H02J7/007192—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
- H02J7/007194—Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature of the battery
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention is suitable for the technical field of battery charging safety test, and provides a battery charging test system, which comprises: the main controller is used for sending a control instruction to the temperature simulation circuit; the temperature analog circuit is used for controlling temperature change output according to the control instruction of the main controller; a charging circuit; the program-controlled power supply is connected with the charging circuit and receives and stores the electric quantity of the charging circuit; and the data processing equipment is connected with the main controller and the programmable power supply and is used for acquiring the charging current data of the programmable power supply. The invention correspondingly provides a charging method. Therefore, the invention can simultaneously simulate the actual use charging environment, realize the automatic detection of the battery charging over-temperature protection, ensure the battery charging safety, improve the production test efficiency and save the production cost.
Description
Technical Field
The invention relates to the technical field of battery safety charging test, in particular to a battery charging test system and a battery charging test method.
Background
Along with the wide application of lithium batteries, the charging safety of the lithium batteries is particularly important, but the current battery charging safety test requires personnel to open a test switch, and only the current environmental temperature and the charging state can be tested, the final test result is judged manually according to a judgment indicator lamp, and the charging states of various high and low temperatures cannot be simulated. The manual operation is troublesome and labor-consuming, and the accuracy of the result cannot be ensured.
In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.
Disclosure of Invention
In view of the above-mentioned drawbacks, the present invention provides a battery charging test system and method, which can simulate the actual charging environment, realize automatic detection of battery charging over-temperature protection, ensure battery charging safety, improve production test efficiency, and save production cost.
In order to achieve the above object, the present invention provides a battery charging test system, comprising:
the main controller is used for sending a control instruction to the temperature simulation circuit;
the temperature analog circuit is used for controlling temperature change output according to the control instruction of the main controller;
a charging circuit;
the program-controlled power supply is connected with the charging circuit and receives and stores the electric quantity of the charging circuit;
and the data processing equipment is connected with the main controller and the programmable power supply and is used for acquiring the charging current data of the programmable power supply.
According to the battery charging test system, the data processing equipment is connected with the main controller through a serial port.
According to the battery charging test system, the output end of the temperature simulation circuit is connected with the NTC pin of the charging circuit.
According to the battery charging test system, the main controller is STM32F401CDU 6.
The invention correspondingly provides a battery charging test method, which comprises the following steps:
sending a temperature control instruction;
adjusting temperature change output according to the control instruction;
and acquiring charging current data of the charging power supply at the analog temperature.
The invention is suitable for the technical field of battery charging safety test, and provides a battery charging test system, which comprises: the main controller is used for sending a control instruction to the temperature simulation circuit; the temperature analog circuit is used for controlling temperature change output according to the control instruction of the main controller; a charging circuit; the program-controlled power supply is connected with the charging circuit and receives and stores the electric quantity of the charging circuit; and the data processing equipment is connected with the main controller and the programmable power supply and is used for acquiring the charging current data of the programmable power supply. The invention correspondingly provides a charging method. Therefore, the invention can simultaneously simulate the actual use charging environment, realize the automatic detection of the battery charging over-temperature protection, ensure the battery charging safety, improve the production test efficiency and save the production cost.
Drawings
FIG. 1 is a schematic diagram of the system architecture of the present invention;
FIG. 2 is a block diagram of a temperature simulation circuit according to an embodiment of the present invention;
FIG. 3 is a flow chart of a method according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, the present invention provides a battery charging test system, including:
and the master controller 10 is used for sending a control instruction to the temperature simulation circuit 20. The master controller 10 is a microcontroller, which may be implemented using an existing single-chip microcomputer or other microprocessor.
And the temperature analog circuit 20 is used for controlling temperature change output according to the control instruction of the main controller 10. It has a temperature control chip and corresponding peripheral circuits, which has an output terminal connected to the NTC pin of the charging circuit 30.
And a charging circuit 30 connected to the analog power supply and charging the analog power supply (i.e., the programmable power supply 40) in response to an instruction from the master controller 10.
And the program-controlled power supply 40 is connected with the charging circuit 30 and receives the electric quantity of the charging circuit for storage.
And the data processing device 50 is connected with the master controller 10 and the programmable power supply 40 and is used for acquiring the charging current data of the programmable power supply 40. The data processing device 50 may be an existing computer device, and may send an instruction to the master controller 10, obtain charging current data at a certain temperature, and analyze a relationship between the temperature and the charging current to implement a safety test of battery charging.
All the modules are connected with corresponding power supplies, which is not described in detail for the reason of the prior art.
The method for automatically detecting the charging safety of the battery is characterized in that a main controller 10 is connected with a temperature simulation circuit 20. Different battery service environment temperatures are simulated through the control of the main controller 10, the current charging current state is read by using a precise power supply instead of a battery, the state is fed back to the computer, whether the charging current is normal at each temperature is judged by using the computer, and the test mode is switched without manual extra operation.
Referring to fig. 2, a schematic structural diagram of a temperature simulation circuit 20 according to an embodiment of the invention is shown. In the embodiment, a computer is connected with a main controller 10, and the computer issues a test starting command through a serial port UART; the master controller 10 controls the charging circuit 30 to turn on the charging. The master controller 10 controls the temperature analog circuit 20 to switch different temperature changes through the GPIO. The output end of the temperature analog circuit 20 is connected with the NTC pin of the charging circuit 30, so as to realize different temperature change feedbacks.
For different channels of the temperature simulation circuit 20, different temperature outputs are provided, for example, Y0 to Y4 correspond to output temperatures: 25. 5, 45 and 55 degrees Celsius. The programmable power supply 40 is connected with a battery and a Ground (GND) pin of the charging circuit 20, so as to simulate the existence of the battery and realize the real-time monitoring of the charging current.
The programmable power supply 40 is connected to the computer via a General Purpose Interface Bus (GPIB) to transmit the charging current status to the computer (data processing device 50). The computer judges whether the charging current is OK or not under the current temperature through the received data, if so, a next temperature test instruction is given to the main controller 10 until all the temperatures are completely detected.
In the above embodiment of the present invention, the master controller 10 is an STM32F401CDU6 produced by NXP corporation, the IC of the temperature analog circuit 20 is an NX3L4051 produced by NXP corporation, the charging circuit 10IC is a BQ24079RGTR produced by TI corporation, and the programmed power supply is 2303 produced by keyley.
Fig. 3 is a flow chart of a charging method of the present invention, the method comprising:
in step S301, a charging and temperature control command is sent.
And step S302, charging and adjusting temperature change output according to the control instruction.
Step S303, obtaining charging current data of the charging power supply at the analog temperature.
In summary, the present invention is applicable to the technical field of battery charging safety test, and provides a battery charging test system, including: the main controller is used for sending a control instruction to the temperature simulation circuit; the temperature analog circuit is used for controlling temperature change output according to the control instruction of the main controller; a charging circuit; the program-controlled power supply is connected with the charging circuit and receives and stores the electric quantity of the charging circuit; and the data processing equipment is connected with the main controller and the programmable power supply and is used for acquiring the charging current data of the programmable power supply. The invention correspondingly provides a charging method. Therefore, the invention can simultaneously simulate the actual use charging environment, realize the automatic detection of the battery charging over-temperature protection, ensure the battery charging safety, improve the production test efficiency and save the production cost.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (5)
1. A battery charge test system, comprising:
the main controller is used for sending a control instruction to the temperature simulation circuit;
the temperature analog circuit is used for controlling temperature change output according to the control instruction of the main controller;
a charging circuit;
the program-controlled power supply is connected with the charging circuit and receives and stores the electric quantity of the charging circuit;
and the data processing equipment is connected with the main controller and the programmable power supply and is used for acquiring the charging current data of the programmable power supply.
2. The battery charging test system of claim 1, wherein the data processing device is connected to the master controller via a serial port.
3. The battery charge test system of claim 1, wherein the output of the temperature analog circuit is connected to the NTC pin of the charging circuit.
4. The battery charge test system of claim 1, wherein the master is STM32F401CDU 6.
5. A battery charge testing method, the method comprising:
sending a charging and temperature control instruction;
charging and adjusting temperature change output according to the control instruction;
and acquiring charging current data of the charging power supply at the analog temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010984943.8A CN112083344A (en) | 2020-09-18 | 2020-09-18 | Battery charging test system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010984943.8A CN112083344A (en) | 2020-09-18 | 2020-09-18 | Battery charging test system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112083344A true CN112083344A (en) | 2020-12-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010984943.8A Pending CN112083344A (en) | 2020-09-18 | 2020-09-18 | Battery charging test system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112083344A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106597303A (en) * | 2016-12-01 | 2017-04-26 | 北京小米移动软件有限公司 | Simulation charging system and method |
| CN109343370A (en) * | 2018-11-30 | 2019-02-15 | 北京宇航系统工程研究所 | A kind of space power system controller dynamic environment analogue system and method |
-
2020
- 2020-09-18 CN CN202010984943.8A patent/CN112083344A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106597303A (en) * | 2016-12-01 | 2017-04-26 | 北京小米移动软件有限公司 | Simulation charging system and method |
| CN109343370A (en) * | 2018-11-30 | 2019-02-15 | 北京宇航系统工程研究所 | A kind of space power system controller dynamic environment analogue system and method |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201215 |
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| RJ01 | Rejection of invention patent application after publication |