CN212875422U - Battery management system and device - Google Patents
Battery management system and device Download PDFInfo
- Publication number
- CN212875422U CN212875422U CN202021778001.6U CN202021778001U CN212875422U CN 212875422 U CN212875422 U CN 212875422U CN 202021778001 U CN202021778001 U CN 202021778001U CN 212875422 U CN212875422 U CN 212875422U
- Authority
- CN
- China
- Prior art keywords
- module
- control board
- battery
- management system
- slave control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model provides a battery management system and a device, wherein the battery management system comprises a main control board and a plurality of slave control boards, each slave control board is correspondingly provided with a battery module, the main control board comprises a control module and a balancing module, and each slave control board comprises an acquisition module and a microprocessor; the master control board is connected with each slave control board through a communication line, each slave control board is connected with each other through the communication line, and each slave control board is connected with the corresponding battery module. In this way, the utility model discloses an above-mentioned, set up every battery module and correspond different from the control board, charge or discharge through following the control board control battery module by the master control board is unified to this, fully according to the actual conditions of every battery, realize that the battery is balanced, and then improved the balanced efficiency of battery, promoted the balanced effect of battery.
Description
Technical Field
The utility model relates to a battery management technology field especially relates to a battery management system and device.
Background
Currently, new energy vehicles use lithium ion batteries as a power source of the vehicles, and generally, most new energy vehicles use a series-parallel connection method to form battery modules by a plurality of battery monomers, and the battery modules provide kinetic energy for the vehicles.
However, in the use process of the power lithium ion battery, the voltage, the capacity and the internal resistance of each battery are different, and the external use environment of each battery is different, so that the voltage and the electric quantity of the battery cells are inconsistent.
In the prior art, in order to solve the above problems, a passive equalization technology is generally used to realize equalization control of the battery. The passive equalization technology discharges only a single battery with a voltage higher than a certain value, does not fully consider the actual condition of each battery, and has the technical problems of low battery equalization efficiency and insignificant equalization effect.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a battery management system and device aims at solving the balanced mode inefficiency of current battery and the not remarkable technical problem of effect.
In order to achieve the above object, the present invention provides a battery management system and device, wherein the battery management system includes a master control board and a plurality of slave control boards, each slave control board is correspondingly provided with a battery module, the master control board includes a control module and a balancing module, and the slave control boards include an acquisition module and a microprocessor;
the master control board is connected with each slave control board through a communication line, the slave control boards are connected with each other through the communication line, and each slave control board is connected with the corresponding battery module; the acquisition module of each slave control board is used for acquiring the voltage of the corresponding battery module and sending the generated voltage signal to the control module; and the control module is used for controlling the equalization module to send a charging and discharging instruction to the microprocessor after receiving the voltage signal, so that the microprocessor controls the battery module to charge or discharge.
Optionally, the acquisition module includes a voltage detection unit;
and the voltage detection unit is used for collecting the voltage of the battery module.
Optionally, the acquisition module further includes a temperature detection unit;
the temperature detection unit is used for collecting the temperature of the battery module.
Optionally, the slave control board further comprises an analysis module;
the analysis module is used for judging whether the battery module has a fault according to the temperature and the voltage of the battery module, and if so, sending a fault instruction to the control module.
Optionally, after receiving the fault instruction, the control module sends a stop instruction to the balancing module, so that the balancing module controls the battery module to stop charging or discharging through the microprocessor according to the stop instruction.
Optionally, the control module is further configured to determine whether the battery module fails according to the voltage signal, and if so, send a stop instruction to the equalization module, so that the equalization module controls the battery module to stop charging or discharging through the microprocessor according to the stop instruction.
Optionally, the main control board further includes an alarm module;
the control module is further used for sending a driving signal to the alarm module while sending a stop instruction, so that the alarm module gives an alarm.
Optionally, the main control board further includes a storage module;
and the storage module is used for storing the battery module voltage acquired by the acquisition module.
Optionally, the communication line is a CAN communication line.
The utility model provides a battery management system and a device, wherein the battery management system comprises a main control board and a plurality of slave control boards, each slave control board is correspondingly provided with a battery module, the main control board comprises a control module and a balancing module, and each slave control board comprises an acquisition module and a microprocessor; the master control board is connected with each slave control board through a communication line, each slave control board is connected with each other through the communication line, and each slave control board is connected with the corresponding battery module. In this way, the utility model discloses an above-mentioned, set up every battery module and correspond different from the control board, charge or discharge through following the control board control battery module by the master control board is unified to this, fully according to the actual conditions of every battery, realize that the battery is balanced, and then improved the balanced efficiency of battery, promoted the balanced effect of battery.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic diagram of a module structure of a battery management system according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a specific module structure of a battery management system according to an embodiment of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | |
21 | |
| 20 | |
22 | |
| 11 | |
23 | |
| 12 | |
211 | |
| 13 | |
212 | |
| 14 | Memory module |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.
The utility model provides a battery management system, which comprises a master control board 10 and a plurality of slave control boards 20, wherein each slave control board 20 is correspondingly provided with a battery module, the master control board 10 comprises a control module 11 and a balancing module 12, and each slave control board 20 comprises an acquisition module 21 and a microprocessor 22; the master control board 10 is connected with each slave control board 20 through a communication line, each slave control board 20 is connected with each other through a communication line, and each slave control board 20 is connected with a corresponding battery module.
In this embodiment, the collecting module 21 of each slave control board 20 is configured to collect the voltage of the corresponding battery module, generate a corresponding voltage signal, and send the voltage signal to the control module 11. After receiving the voltage signal, the control module 11 may determine whether the battery module fails according to the voltage signal, and the following specific description is provided for the control module 11 to determine whether the battery module fails according to the voltage signal:
in a possible situation, the control module 11 may obtain the voltage of the battery module according to the voltage signal, and at the same time, the control module 11 pre-stores a maximum voltage value, and when the voltage of the battery module is higher than the maximum voltage value, it indicates that the battery module has a fault; when the voltage of the battery module is not higher than the maximum voltage value, it indicates that there is no fault in the battery module. Therefore, whether the battery module is in fault or not is judged.
Under the condition that the battery module has no fault, the control module 11 sends the voltage signal to the equalization module 12, wherein the equalization module 12 includes an equalization feedback unit (not shown) and an instruction sending unit (not shown), and the equalization feedback unit is configured to determine, according to the voltage signal, whether the battery module needs to be charged or discharged so as to achieve equalization between voltages of all battery modules.
In one case, when the battery module needs to be charged, a first instruction is sent to the instruction sending unit, and the instruction sending unit sends a charging instruction to the microprocessor 22 according to the first instruction, so that the microprocessor 22 controls the charging of the battery module.
In another case, when the battery module needs to be discharged, a second instruction is sent to the instruction sending unit, and the instruction sending unit sends a discharge instruction to the microprocessor 22 according to the second instruction, so that the microprocessor 22 controls the battery module to discharge.
In this embodiment, each battery module is set to correspond to different slave control boards 20, and the master control board 10 uniformly controls the battery modules to charge or discharge through the slave control boards 20, so that the battery balance is realized fully according to the actual situation of each battery, the battery balance efficiency is improved, and the battery balance effect is improved.
Further, the acquisition module 21 includes a voltage detection unit 211; and the voltage detection unit 211 is used for collecting the voltage of the battery module.
Further, the acquisition module 21 further includes a temperature detection unit 212; and the temperature detection unit 212 is used for acquiring the temperature of the battery module.
In this embodiment, the collection module 21 in the slave control board 20 includes, but is not limited to, a voltage detection unit 211 and a temperature detection unit 212 for detecting the voltage and the temperature of the battery module, and the actual working state of the battery module is known more by the arrangement of the voltage detection unit 211 and the temperature detection unit 212.
Further, the slave control board 20 further includes an analysis module 23; and the analysis module 23 is configured to determine whether the battery module has a fault according to the temperature and the voltage of the battery module, and if so, send a fault instruction to the control module 11.
In this embodiment, the slave control board 20 is further provided with an analysis module 23, and it can be understood that the acquisition module 21 in the slave control board 20 not only sends the acquired voltage and temperature of the battery module to the control module 11, but also sends the voltage and temperature of the battery module to the analysis module 23, and the analysis module 23 determines whether the battery module is faulty according to the voltage and temperature of the battery module, and sends a fault instruction to the control module 11 when the battery module is faulty.
In one possible case, the analysis module 23 stores a data table in advance, and the data table stores a mapping between the voltage and the maximum voltage value of the battery module and a mapping between the temperature and the maximum temperature value of the battery module. After the analysis module 23 obtains the voltage and the temperature of the battery module, it is determined whether the battery has a fault through the data table, and an optional determination manner is that the voltage of the battery module is higher than the highest voltage value, or the temperature of the battery module is higher than the highest temperature value, and it is determined that the battery module has a fault.
In the present embodiment, the slave controller 20 is provided with the analysis module 23, so that the slave controller 20 also has a function of detecting a failure of the battery module. As in the above embodiment, the master control board 10 also has a function of detecting a fault of the battery module, so that both the master control board 10 and the slave control board 20 in the battery management system can detect whether the battery module has a fault, so as to ensure the safety of all the battery modules.
Further, after receiving the fault instruction, the control module 11 sends a stop instruction to the equalization module 12, so that the equalization module 12 controls the battery module to stop charging or discharging through the microprocessor 22 according to the stop instruction.
Further, the main control board 10 further includes an alarm module 13; the control module 11 is further configured to send a driving signal to the alarm module 13 while sending the stop instruction, so that the alarm module 13 sends an alarm.
In this embodiment, in the case of detecting that the battery module has a fault, in order to avoid the damage of the battery management system due to the fault of the battery module, the control module 11 sends a stop instruction to the balancing module 12, so that the balancing module 12 controls the battery module to stop charging or discharging through the microprocessor 22 according to the stop instruction. By controlling the battery module to stop charging or discharging in this way, the battery module is protected.
Meanwhile, when the control module 11 sends a stop instruction, the control module 11 also sends a driving signal to the alarm module 13, and the alarm module 13 sends an alarm accordingly, so that the staff can process the fault of the battery module in time, wherein the alarm module 13 can be a display, and the display displays a corresponding fault code.
Further, the main control board 10 further includes a storage module 14; and the storage module 14 is used for storing the battery module voltage acquired by the acquisition module 21.
Additionally, the utility model also provides a battery management device, battery management device includes foretell battery management system. The battery management system comprises a master control board 10 and a plurality of slave control boards 20, wherein each slave control board 20 is correspondingly provided with a battery module, the master control board 10 comprises a control module 11 and a balancing module 12, and each slave control board 20 comprises an acquisition module 21 and a microprocessor 22; the master control board 10 is connected with each slave control board 20 through a communication line, each slave control board 20 is connected with each other through a communication line, and each slave control board 20 is connected with a corresponding battery module. Since the battery management device includes the battery management system as described above, the battery management device has all the advantages of the battery management system, which are not repeated herein.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.
Claims (10)
1. The battery management system is characterized by comprising a master control board and a plurality of slave control boards, wherein each slave control board is correspondingly provided with a battery module, the master control board comprises a control module and a balancing module, and each slave control board comprises an acquisition module and a microprocessor;
the master control board is connected with each slave control board through a communication line, the slave control boards are connected with each other through the communication line, and each slave control board is connected with the corresponding battery module;
the acquisition module of each slave control board is used for acquiring the voltage of the corresponding battery module and sending the generated voltage signal to the control module; and the control module is used for controlling the equalization module to send a charging and discharging instruction to the microprocessor after receiving the voltage signal, so that the microprocessor controls the battery module to charge or discharge.
2. The battery management system of claim 1, wherein the acquisition module comprises a voltage detection unit;
and the voltage detection unit is used for collecting the voltage of the battery module.
3. The battery management system of claim 2, wherein the acquisition module further comprises a temperature detection unit;
the temperature detection unit is used for collecting the temperature of the battery module.
4. The battery management system of claim 3, wherein the slave control board further comprises an analysis module;
the analysis module is used for judging whether the battery module has a fault according to the temperature and the voltage of the battery module, and if so, sending a fault instruction to the control module.
5. The battery management system according to claim 4, wherein the control module sends a stop instruction to the balancing module after receiving the fault instruction, so that the balancing module controls the battery module to stop charging or discharging through the microprocessor according to the stop instruction.
6. The battery management system according to claim 1, wherein the control module is further configured to determine whether the battery module has a fault according to the voltage signal, and if so, send a stop instruction to the balancing module, so that the balancing module controls the battery module to stop charging or discharging through the microprocessor according to the stop instruction.
7. The battery management system of claim 6, wherein the master control board further comprises an alarm module;
the control module is further used for sending a driving signal to the alarm module while sending a stop instruction, so that the alarm module gives an alarm.
8. The battery management system of claim 1, wherein the master control board further comprises a storage module;
and the storage module is used for storing the battery module voltage acquired by the acquisition module.
9. The battery management system of any of claims 1-8, wherein the communication line is a CAN communication line.
10. A battery management device, comprising the battery management system according to any one of claims 1 to 9, wherein the battery management system comprises a master control board and a plurality of slave control boards, each slave control board is provided with a battery module, the master control board comprises a control module and a balancing module, and each slave control board comprises an acquisition module and a microprocessor; the main control board is connected with each slave control board through a communication line, the slave control boards are connected with each other through the communication line, and each slave control board is connected with the corresponding battery module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021778001.6U CN212875422U (en) | 2020-08-21 | 2020-08-21 | Battery management system and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021778001.6U CN212875422U (en) | 2020-08-21 | 2020-08-21 | Battery management system and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212875422U true CN212875422U (en) | 2021-04-02 |
Family
ID=75190704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021778001.6U Active CN212875422U (en) | 2020-08-21 | 2020-08-21 | Battery management system and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212875422U (en) |
-
2020
- 2020-08-21 CN CN202021778001.6U patent/CN212875422U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3054554B1 (en) | Battery pack and method of controlling the same | |
| US8912758B2 (en) | Power storage apparatus, power storage system having the same and method of assembling power storage system by using the same | |
| CN105122581B (en) | System and method for distributing from communication ID to more BMS | |
| US20140117939A1 (en) | Secondary battery management system and method for exchanging battery cell information | |
| US11831716B2 (en) | System and method for communication between BMSs | |
| CN112600264B (en) | Control method and system of parallel battery packs, electronic equipment and vehicle | |
| CN102569930A (en) | Pressure detecting device for batteries and detecting method thereof | |
| CN110571482A (en) | High-voltage distribution box for battery pack and control method thereof | |
| CN108931686A (en) | A kind of battery system total voltage is under-voltage detection method, device, equipment and automobile | |
| CN210376622U (en) | Battery failure alarm system | |
| EP4220818A1 (en) | Battery formation apparatus, and control method and system for same | |
| EP2854254A1 (en) | Charging station having battery cell balancing system | |
| CN104079040A (en) | Blood collecting vehicle and power supply device and power supply mode of blood collecting vehicle-mounted equipment | |
| CN212875422U (en) | Battery management system and device | |
| CN206710568U (en) | Batteries monitor and monitoring system | |
| CN207683366U (en) | A kind of hybrid battery system for electric vehicle | |
| CN203406389U (en) | Battery pack parallel-connection control box of electric automobile | |
| CN108448184A (en) | A kind of energy-saving management system based on fuel cell | |
| US11880264B2 (en) | BMS recognition system and method | |
| CN105990868A (en) | Cell management system used in electricity changing energy storage system | |
| CN205453185U (en) | Simulated acquisition ware | |
| CN107985614A (en) | Vehicle-mounted flight control system and automobile | |
| KR102229166B1 (en) | Method and apparatus for monitoring environment of energy storage system | |
| CN211701537U (en) | Battery management system and charging device | |
| CN219716950U (en) | Battery management system of racing car |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230925 Address after: 410000 Rooms 102 and 103, Torch City, Yinpenling Street, Yuelu District, Changsha City, Hunan Province Patentee after: CHANGSHA UNITED ELECTRIC TECH Address before: 410000 rooms 1012 and 1013, building 5, shengdaze Xicheng, 158 Yuelu Avenue, yinpenling street, Yuelu District, Changsha City, Hunan Province (cluster registration) Patentee before: Changsha Yirui Electronic Technology Co.,Ltd. |