CN112848966A - Lithium battery module connecting circuit stability detection equipment - Google Patents
Lithium battery module connecting circuit stability detection equipment Download PDFInfo
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- CN112848966A CN112848966A CN202011550101.8A CN202011550101A CN112848966A CN 112848966 A CN112848966 A CN 112848966A CN 202011550101 A CN202011550101 A CN 202011550101A CN 112848966 A CN112848966 A CN 112848966A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
- B60L58/14—Preventing excessive discharging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
- B60L58/15—Preventing overcharging
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The invention belongs to the technical field of lithium battery detection, and particularly relates to a lithium battery module connecting circuit stability detection device which comprises a lithium battery performance detection module, a multi-channel data acquisition module, a control module, a lithium battery protection IC (integrated circuit), an FPGA (field programmable gate array) chip, an FLASH module, a display module and a wireless communication module, wherein the lithium battery performance detection module is used for detecting open-circuit voltage, current, battery capacity and temperature of the lithium battery module. According to the invention, through detecting the open-circuit voltage, current, battery capacity and temperature parameters of the lithium battery, the FPGA chip is additionally arranged to assist the control module to process the full signal, and a shared chip can be obtained without putting into production.
Description
Technical Field
The invention relates to the technical field of lithium battery detection, in particular to a device for detecting the stability of a lithium battery module connecting circuit.
Background
In recent years, with the development of various hybrid vehicles and electric vehicles, the performance of the vehicle-mounted battery is more and more required. This is particularly true of plug-in hybrid electric vehicles (PHEVs) and Electric Vehicles (EVs); compared with gasoline hybrid electric vehicles, the hybrid electric vehicle has higher requirement on the capacity of the storage battery, and has the advantages of low charge-discharge loss and self-discharge requirement. Therefore, the position of the lithium ion secondary battery is becoming more and more important.
The energy storage lithium battery pack belongs to an electrochemical product, the performance of the energy storage lithium battery pack is greatly influenced by raw materials, processes and environments (such as temperature, humidity and the like), even if the energy storage lithium battery pack is a single lithium battery in the same batch, the performance of the energy storage lithium battery pack has certain discreteness, and if the energy storage lithium battery pack is in different batches, the discreteness is larger. Therefore, in the charging and discharging process of the energy storage lithium battery pack, parameters of single lithium batteries are inconsistent, so that the battery is overcharged, overdischarged, short in standby time, short in cycle service life, low in safety and stability, and has potential hazards of serious accidents such as combustion, fire and even explosion of the mobile power supply. Therefore, the stability needs to be tested.
The existing lithium battery connection circuit stability detection equipment mainly detects the voltage, the current, the battery capacity and the temperature of a lithium battery, detected data are usually processed through an MCU (microprogrammed control Unit), the higher the sampling frequency is, the larger the data processing amount is, the lower the processing efficiency is, and overcharge and overdischarge protection cannot be provided in the detection process of the lithium battery.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a device for detecting the stability of a connecting circuit of a lithium battery module, which solves the problems that in the prior art, the detected data is processed by an MCU (microprogrammed control unit), the higher the sampling frequency is, the larger the data processing amount is, the lower the processing efficiency is, and overcharge and overdischarge protection cannot be provided in the detection process of the lithium battery, because the voltage, the current, the battery capacity and the temperature of the lithium battery are required to be detected, and the like.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a stability detection device for a lithium battery module connecting circuit comprises a lithium battery performance detection module, a multi-channel data acquisition module, a control module, a lithium battery protection IC, an FPGA chip, a FLASH module, a display module and a wireless communication module, wherein the lithium battery performance detection module is used for detecting open-circuit voltage, current, battery capacity and temperature of the lithium battery module, the lithium battery performance detection module is electrically connected with the multi-channel data acquisition module, the FPGA chip, the display module and the wireless communication module are respectively electrically connected with the control module, the lithium battery module is electrically connected with the control module through the lithium battery protection IC, the lithium battery protection IC is used for carrying out overcharge and overdischarge detection and overcharge and overdischarge protection in the detection process of the lithium battery module, and the FLASH module is electrically connected with the FPGA chip, the control module receives open-circuit voltage, current, battery capacity and temperature data of the lithium battery module acquired by the multi-channel data acquisition module, transmits the acquired data to the FPGA chip for full signal processing, the FPGA chip stores the processed data through the FLASH module after completing a full signal processing task, and simultaneously transmits the processed data back to the control module for data display by the display module, and the wireless communication module is used for realizing remote wireless transmission of local data.
As a preferred technical solution of the present invention, the lithium battery performance detection module is composed of a voltage detection module, a current detection module, a battery capacity detection module and a temperature detection module, which are respectively used for detecting open-circuit voltage, current, battery capacity and temperature of the lithium battery module.
As a preferred technical scheme of the invention, the multichannel data acquisition module adopts a 16-channel analog acquisition module with the model number of DAM-6160.
As a preferable technical scheme of the invention, the control module adopts an MCU with the model number of stm32f103c8t 6.
As a preferred technical scheme of the invention, the control module and the FPGA chip are in SPI serial communication.
As a preferred technical scheme of the invention, the lithium battery protection IC adopts a battery protection chip with the model number DP 6801-SCB.
As a preferred technical scheme of the invention, the connecting circuit stability detection equipment further comprises an alarm module, and the alarm module adopts an audible and visual alarm mode to perform abnormity alarm.
(III) advantageous effects
Compared with the prior art, the invention provides a lithium battery module connecting circuit stability detection device, which has the following beneficial effects:
this lithium cell module connecting circuit stability check out test set detects through open circuit voltage, electric current, battery capacity and the temperature parameter to the lithium cell, adds the FPGA chip and handles full signal with auxiliary control module, need not to throw the piece production, just can obtain the shared chip, and the system has the characteristics that the consumption is low, the processing speed is fast and the reliability is high, and in carrying out the testing process to lithium cell connecting circuit, utilizes lithium cell protection IC to overcharge, overdischarge protection, and the security is high to the lithium cell.
Drawings
Fig. 1 is a system schematic block diagram of a lithium battery module connection circuit stability detection device according to the present invention.
In the figure: 1. a lithium battery performance detection module; 101. a voltage detection module; 102. a current detection module; 103. a battery capacity detection module; 104. a temperature detection module; 2. a multi-channel data acquisition module; 3. a control module; 4. a lithium battery module; 5. protecting a lithium battery; 6. an FPGA chip; 7. a FLASH module; 8. a display module; 9. and a wireless communication module.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1, the present invention provides the following technical solutions: a stability detection device for a lithium battery module connecting circuit comprises a lithium battery performance detection module 1, a multi-channel data acquisition module 2, a control module 3, a lithium battery module 4, a lithium battery protection IC5, an FPGA chip 6, a FLASH module 7, a display module 8 and a wireless communication module 9, wherein the lithium battery performance detection module 1 is used for detecting open-circuit voltage, current, battery capacity and temperature of the lithium battery module 4, the lithium battery performance detection module 1 is electrically connected with the multi-channel data acquisition module 2, the FPGA chip 6, the display module 8 and the wireless communication module 9 are respectively electrically connected with the control module 3, the lithium battery module 4 is electrically connected with the control module 3 through a lithium battery protection IC5, and the lithium battery protection IC5 is used for carrying out overcharge, overdischarge detection and overcharge implementation in the detection process of the lithium battery module, Overdischarge protection, FLASH module 7 and FPGA chip 6 electric connection, control module 3 receives the open circuit voltage of lithium battery module 4, the electric current, battery capacity and the temperature data of gathering via multichannel data acquisition module 2, and transmit the data of gathering to FPGA chip 6 and carry out the full signal and handle, FPGA chip 6 accomplishes to store the data after handling through FLASH module 7 behind the full signal processing task, the data after will handling simultaneously is passed back to control module 3, carry out the data show by display module 8, wireless communication module 9 is used for realizing the long-range wireless transmission of local data.
Specifically, the lithium battery performance detection module 1 is composed of a voltage detection module 101, a current detection module 102, a battery capacity detection module 103, and a temperature detection module 104, which are respectively used for detecting the open-circuit voltage, the current, the battery capacity, and the temperature of the lithium battery module 4.
In this embodiment, the voltage detection module 101, the current detection module 102, the battery capacity detection module 103, and the temperature detection module 104 form the lithium battery performance detection module 1, which is used to detect open-circuit voltage, current, battery capacity, and temperature parameters of the lithium battery, and can detect the charge/discharge performance, high/low temperature performance, heat resistance, and charge retention capability of the lithium battery module 4 during the charge/discharge process, so as to achieve the purpose of detecting whether the connection circuit of the lithium battery module 4 is stable during the use process.
Specifically, the multichannel data acquisition module 2 adopts a 16-channel analog acquisition module with the model of DAM-6160.
In the embodiment, the DAM-6160 is a brand-new generation analog quantity acquisition module based on an embedded system, adopts a standard DIN35 guide rail installation mode, and is simple in field installation and flexible to use; the method can be applied to various fields; the module is provided with an RS232 interface to facilitate communication with a PC or a PLC, and is provided with an RS485 interface, so that the module can be independently communicated with the PC or the PLC and can also be used for networking with a plurality of 485 modules; the DAM-6160 analog quantity acquisition module can acquire 16 paths of single-end analog signals; the module adopts a high-performance 12-bit AD chip, and the acquisition and measurement precision is better than +/-0.2% through circuit processing and a special software algorithm; the device is suitable for collecting various voltage and current signals of an industrial field; the DAM-6160 adopts an advanced magnetic isolation technology, so that the speed, reliability and safety of data acquisition are effectively guaranteed.
Specifically, the control module 3 adopts an MCU with model number stm32f103c8t 6.
Specifically, the control module 3 and the FPGA chip 6 perform SPI serial communication.
Specifically, the lithium battery protection IC5 adopts a battery protection chip with the model number DP 6801-SCB.
Specifically, the connecting circuit stability detection equipment further comprises an alarm module, and the alarm module is used for alarming abnormity in a sound-light alarm mode.
In this embodiment, the alarm module is configured to alarm when detecting that the voltage, current, battery capacity, and temperature data of the lithium battery module 4 are abnormal, so as to prompt in time.
The working principle and the using process of the invention are as follows: when the system works, the voltage, current, battery capacity and temperature data of the lithium battery module 4 are acquired by each detection module in the lithium battery performance detection module 1, the detected electric signals are transmitted to the control module 3 through the multi-channel data acquisition module 2, the control module 3 receives the open-circuit voltage, current, battery capacity and temperature data of the lithium battery module 4 acquired by the multi-channel data acquisition module 2 and transmits the acquired data to the FPGA chip 6 for full signal processing, the FPGA chip 6 stores the processed data through the FLASH module 7 after completing the full signal processing task and simultaneously transmits the processed data back to the control module 3, the auxiliary control module 3 processes the sampled data to improve the data processing efficiency and reduce the calculation load of the control module 3, and the processed data are displayed through the display module 8, when some data is abnormal, the alarm module gives an alarm; in the process of detecting the connection circuit of the lithium battery module 4, the lithium battery protection IC5 protects the lithium battery module 4 from overcharge and overdischarge.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a lithium battery module connecting circuit stability check out test set, includes lithium battery performance detection module (1), multichannel data acquisition module (2), control module (3), lithium battery module (4), lithium battery protection IC (5), FPGA chip (6), FLASH module (7), display module (8) and wireless communication module (9), its characterized in that: the lithium battery performance detection module (1) is used for detecting open-circuit voltage, current, battery capacity and temperature of a lithium battery module (4), the lithium battery performance detection module (1) is electrically connected with a multi-channel data acquisition module (2), the multi-channel data acquisition module (2), an FPGA chip (6), a display module (8) and a wireless communication module (9) are respectively electrically connected with a control module (3), the lithium battery module (4) is electrically connected with the control module (3) through a lithium battery protection IC (5), the lithium battery protection IC (5) is used for carrying out overcharge and overdischarge detection and implementing overcharge and overdischarge protection in the detection process of the lithium battery module (4), the FLASH module (7) is electrically connected with the FPGA chip (6), and the control module (3) receives the open-circuit voltage, the current, the battery capacity and the temperature of the lithium battery module (4) which are acquired through the multi-channel data acquisition module (2, The system comprises current, battery capacity and temperature data, the acquired data are transmitted to an FPGA chip (6) to be processed in a full signal mode, the FPGA chip (6) completes a full signal processing task and then stores the processed data through an FLASH module (7), the processed data are transmitted back to a control module (3) and displayed by a display module (8), and a wireless communication module (9) is used for achieving remote wireless transmission of local data.
2. The lithium battery module connection circuit stability detection device of claim 1, characterized in that: the lithium battery performance detection module (1) is composed of a voltage detection module (101), a current detection module (102), a battery capacity detection module (103) and a temperature detection module (104) which are respectively used for detecting the open-circuit voltage, the current, the battery capacity and the temperature of the lithium battery module (4).
3. The lithium battery module connection circuit stability detection device of claim 1, characterized in that: the multichannel data acquisition module (2) adopts a 16-channel analog acquisition module with the model of DAM-6160.
4. The lithium battery module connection circuit stability detection device of claim 1, characterized in that: the control module (3) adopts an MCU with the model of stm32f103c8t 6.
5. The lithium battery module connection circuit stability detection device of claim 1, characterized in that: and the control module (3) is in SPI serial communication with the FPGA chip (6).
6. The lithium battery module connection circuit stability detection device of claim 1, characterized in that: the lithium battery protection IC (5) adopts a battery protection chip with the model number DP 6801-SCB.
7. The lithium battery module connection circuit stability detection device of claim 1, characterized in that: the connecting circuit stability detection equipment further comprises an alarm module, and the alarm module carries out abnormity alarm in a sound-light alarm mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011550101.8A CN112848966A (en) | 2020-12-24 | 2020-12-24 | Lithium battery module connecting circuit stability detection equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011550101.8A CN112848966A (en) | 2020-12-24 | 2020-12-24 | Lithium battery module connecting circuit stability detection equipment |
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| CN112848966A true CN112848966A (en) | 2021-05-28 |
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| CN202011550101.8A Pending CN112848966A (en) | 2020-12-24 | 2020-12-24 | Lithium battery module connecting circuit stability detection equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114006064A (en) * | 2021-11-01 | 2022-02-01 | 山东芯慧微电子科技有限公司 | Dynamic temperature monitoring system based on electric bicycle lithium battery temperature |
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| CN202886569U (en) * | 2012-09-21 | 2013-04-17 | 深圳职业技术学院 | On-line automobile storage battery state monitoring device based on FPGA |
| CN104391253A (en) * | 2014-12-10 | 2015-03-04 | 国家电网公司 | Method for monitoring statuses of storage batteries of transformer substation by using FPGA (field-programmable gate array) |
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| US20200044462A1 (en) * | 2017-02-22 | 2020-02-06 | Envision Aesc Energy Devices Ltd. | Charge system, battery pack, and protection apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114006064A (en) * | 2021-11-01 | 2022-02-01 | 山东芯慧微电子科技有限公司 | Dynamic temperature monitoring system based on electric bicycle lithium battery temperature |
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Application publication date: 20210528 |
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