CN114843632A - Lithium iron phosphate battery management chip and method thereof - Google Patents
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- GELKBWJHTRAYNV-UHFFFAOYSA-Klithium iron phosphateChemical compound[Li+].[Fe+2].[O-]P([O-])([O-])=OGELKBWJHTRAYNV-UHFFFAOYSA-K0.000titleclaimsabstractdescription83
- 238000000034methodMethods0.000titleabstractdescription5
- 238000001514detection methodMethods0.000claimsabstractdescription78
- 238000004364calculation methodMethods0.000claimsabstractdescription54
- 238000007726management methodMethods0.000claimsdescription37
- 238000005192partitionMethods0.000claimsdescription13
- 238000007599dischargingMethods0.000claimsdescription12
- 239000002253acidSubstances0.000description7
- QSNQXZYQEIKDPU-UHFFFAOYSA-N[Li].[Fe]Chemical compound[Li].[Fe]QSNQXZYQEIKDPU-UHFFFAOYSA-N0.000description4
- XEEYBQQBJWHFJM-UHFFFAOYSA-NIronChemical compound[Fe]XEEYBQQBJWHFJM-UHFFFAOYSA-N0.000description2
- WHXSMMKQMYFTQS-UHFFFAOYSA-NLithiumChemical compound[Li]WHXSMMKQMYFTQS-UHFFFAOYSA-N0.000description2
- 229910052744lithiumInorganic materials0.000description2
- 230000004044responseEffects0.000description2
- 229910052493LiFePO4Inorganic materials0.000description1
- 238000001467acupunctureMethods0.000description1
- 230000009286beneficial effectEffects0.000description1
- 238000004891communicationMethods0.000description1
- 238000010586diagramMethods0.000description1
- 238000001125extrusionMethods0.000description1
- 229910052742ironInorganic materials0.000description1
- 229910000398iron phosphateInorganic materials0.000description1
- WBJZTOZJJYAKHQ-UHFFFAOYSA-Kiron(3+) phosphateChemical compound[Fe+3].[O-]P([O-])([O-])=OWBJZTOZJJYAKHQ-UHFFFAOYSA-K0.000description1
- 238000012423maintenanceMethods0.000description1
- 238000004519manufacturing processMethods0.000description1
- 238000012986modificationMethods0.000description1
- 230000004048modificationEffects0.000description1
- 238000011897real-time detectionMethods0.000description1
- 230000001105regulatory effectEffects0.000description1
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- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
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- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
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Abstract
Translated fromChinese
Description
Translated fromChinese技术领域technical field
本发明涉及电池管理芯片领域，尤其涉及的是一种磷酸铁锂电池管理芯片及其方法。The invention relates to the field of battery management chips, in particular to a lithium iron phosphate battery management chip and a method thereof.
背景技术Background technique
磷酸铁锂电池(LiFePO4)，通常称为“锂铁电池”被用于电动摩托车类型电池上替代普通铅酸电池的产品。虽然绝大多数锂铁电池比铅酸电池更贵，但优点也很突出，铁锂电池比铅酸有更大存储能量，较小的电池却有很大的启动功率。在各种应用当中重量更轻和体积更小；并且，比起铅酸，有一个较低的自放电率；平均电池寿命更长；总的使用成本比铅酸电池更少或者相等；但是，磷酸铁锂电池初期成本投资较大；如果温度较低，可能需要一段变热时间；同样的使用条件下，锂铁电池比铅酸电池使用持续长约一倍的时间，加上失当的维护和存储环境下，铁锂电池可以持续使用5-10年时间。Lithium iron phosphate batteries (LiFePO4), commonly referred to as "lithium iron batteries", are used in electric motorcycle type batteries to replace ordinary lead-acid batteries. Although the vast majority of lithium-iron batteries are more expensive than lead-acid batteries, the advantages are also outstanding. Iron-lithium batteries have more stored energy than lead-acid batteries, and smaller batteries have a large starting power. Lighter weight and smaller size in a variety of applications; and, compared to lead-acid, has a lower self-discharge rate; average battery life is longer; total operating cost is less than or equal to lead-acid batteries; however, The initial cost of lithium iron phosphate batteries is relatively large; if the temperature is low, it may take a period of time to heat up; under the same conditions of use, lithium iron batteries last about twice as long as lead-acid batteries, plus improper maintenance and In the storage environment, the iron-lithium battery can last for 5-10 years.
虽然磷酸铁锂电池在短路、过充、挤压、针刺等滥用的条件下仍然是安全的，但是会对电池的循环寿命造成极大影响。磷酸铁锂电池生产工艺比较复杂.单体电池的一致性差异会比密封阀控铅酸电池大，这就造成电池组在充电后期个别单体电池的电压迅速上升，加之通信机房长期处于无人值守状态，不容易及时发现.从而造成磷酸铁锂电池组寿命减短或者损坏的现象，为了避免以上现象的发生就需要用电他管理系统保障电池的安全可靠。Although lithium iron phosphate batteries are still safe under short-circuit, overcharge, extrusion, acupuncture and other abuse conditions, they will have a great impact on the battery's cycle life. The production process of lithium iron phosphate battery is more complicated. The consistency difference of single battery will be larger than that of sealed valve-regulated lead-acid battery, which causes the voltage of individual single battery to rise rapidly in the later stage of charging, and the communication room is left unmanned for a long time. The on-duty state is not easy to find in time. This will cause the life of the lithium iron phosphate battery to be shortened or damaged. In order to avoid the above phenomenon, it is necessary to use a power management system to ensure the safety and reliability of the battery.
因此，现有技术存在缺陷，需要改进。Therefore, the prior art has shortcomings and needs to be improved.
发明内容SUMMARY OF THE INVENTION
本发明所要解决的技术问题是：提供一种可以实时检测磷酸铁锂电池的电压、电流和表面温度，可以根据实时数据与基准比较值的差值，调用对应的调整控制方案，从而对磷酸铁锂电池进行均衡控制和管理，管理有效性高的磷酸铁锂电池管理芯片及其方法。The technical problem to be solved by the present invention is: to provide a real-time detection of the voltage, current and surface temperature of the lithium iron phosphate battery, and to call the corresponding adjustment control scheme according to the difference between the real-time data and the reference comparison value, so that the iron phosphate can be adjusted accordingly. Balanced control and management of lithium batteries, a lithium iron phosphate battery management chip with high management effectiveness and a method thereof.
本发明的技术方案如下：一种磷酸铁锂电池管理芯片，包括集成设置在芯片内部的检测模块、检测输入控制模块、计算模块、输出控制模块和充放电控制模块：其中，所述检测模块设置电池电压检测输入接口、电池电流检测输入接口和温度检测输入接口，所述检测模块与检测输入控制模块连接；所述检测输入控制模块设置有缓存存储器，所述缓存存储器设置有分区存储单元，用于分区存储不同磷酸铁锂电池输入的检测数据；所述计算模块与检测输入控制模块连接，所述计算模块设置有基准比较值，用于分别计算输入的电压、电流、温度与基准比较值的差值，输出调整信号给充放电控制模块；所述输出控制模块和充放电控制模块分别与计算模块连接，并且，输出控制模块还与输入缓冲模块连接，输出控制模块用于输出检测数据和计算得到的差值，充放电控制模块用于根据调整信号输出调整控制方案给充放电系统。The technical scheme of the present invention is as follows: a lithium iron phosphate battery management chip, comprising a detection module, a detection input control module, a calculation module, an output control module and a charge and discharge control module integrated inside the chip: wherein, the detection module is provided with a battery voltage detection input interface, a battery current detection input interface and a temperature detection input interface, the detection module is connected with the detection input control module; the detection input control module is provided with a cache memory, and the cache memory is provided with a partition storage unit for The detection data input by different lithium iron phosphate batteries is stored in the partition; the calculation module is connected with the detection input control module, and the calculation module is provided with a reference comparison value for calculating the difference between the input voltage, current, temperature and reference comparison value respectively. difference value, output the adjustment signal to the charge and discharge control module; the output control module and the charge and discharge control module are respectively connected with the calculation module, and the output control module is also connected with the input buffer module, the output control module is used for outputting detection data and calculating The obtained difference, the charge and discharge control module is used to adjust the control scheme to the charge and discharge system according to the adjustment signal output.
应用于上述技术方案，所述的磷酸铁锂电池管理芯片中，所述输出控制模块设置有报告生成代码，用于生成报告并发送给外部显示屏。Applied to the above technical solution, in the lithium iron phosphate battery management chip, the output control module is provided with a report generation code for generating a report and sending it to an external display screen.
应用于上述各个技术方案，所述的磷酸铁锂电池管理芯片中，所述输出控制模块还设置有写入端口，用于写入修改所述计算模块的基准比较值。When applied to the above technical solutions, in the lithium iron phosphate battery management chip, the output control module is further provided with a write port for writing and modifying the reference comparison value of the calculation module.
应用于上述各个技术方案，所述的磷酸铁锂电池管理芯片中，温度检测输入接口分别与环境温度检测器和电池表面温度检测器连接。Applied to the above technical solutions, in the lithium iron phosphate battery management chip, the temperature detection input interface is respectively connected to the ambient temperature detector and the battery surface temperature detector.
应用于上述各个技术方案，所述的磷酸铁锂电池管理芯片中，检测输入控制模块还对输入的每一磷酸铁锂电池进行ID编码，并按照每一磷酸铁锂电池的ID编码设定好磷酸铁锂电池的计算先后顺序，按照顺序分别发送给计算模块，计算模块分别计算输入的电压、电流、温度与基准比较值的差值。Applied to the above technical solutions, in the described lithium iron phosphate battery management chip, the detection input control module also performs ID coding on each input lithium iron phosphate battery, and sets the ID code according to the ID code of each lithium iron phosphate battery. The calculation sequence of the lithium iron phosphate battery is sent to the calculation module in sequence, and the calculation module calculates the difference between the input voltage, current, temperature and the reference comparison value.
应用于上述各个技术方案，所述的磷酸铁锂电池管理芯片中，所述充放电控制模块内置写入有磷酸铁锂电池的调整控制方案，所述充放电控制模块根据所述调整信号调用对应的调整控制方案，并发送给充放电系统。Applied to the above technical solutions, in the lithium iron phosphate battery management chip, the charge and discharge control module has a built-in adjustment control scheme for the lithium iron phosphate battery, and the charge and discharge control module calls the corresponding adjustment signal according to the adjustment signal. The adjustment control scheme is sent to the charging and discharging system.
应用于上述各个技术方案一种磷酸铁锂电池管理方法，包括如下步骤：S1：分别检测磷酸铁锂电池的电压值、电流值和表面温度值，并将检测数据输入到检测输入控制模块；S2：检测输入控制模块将检测到的数据按照不同的磷酸铁锂电池分区存储到其设置的缓存存储器；并且，按照设定的先后顺序，将其发送到计算模块；S3：计算模块将接受到的检测数据与其设定基准比较值进行差值计算，并且，根据差值计算结果，输出调整信号；S4：输出控制模块输出检测数据和计算得到的差值，充放电控制模块根据调整信号输出调整控制方案给充放电系统。A lithium iron phosphate battery management method applied to the above technical solutions, comprising the following steps: S1: respectively detect the voltage value, current value and surface temperature value of the lithium iron phosphate battery, and input the detection data into the detection input control module; S2 : The detection input control module stores the detected data in its set cache memory according to different lithium iron phosphate battery partitions; and, according to the set sequence, sends it to the calculation module; S3: The calculation module will receive the Calculate the difference between the detection data and its set reference comparison value, and output an adjustment signal according to the difference calculation result; S4: the output control module outputs the detection data and the calculated difference, and the charge and discharge control module outputs the adjustment control according to the adjustment signal. Scheme for the charging and discharging system.
应用于上述各个技术方案，根所述的磷酸铁锂电池管理方法中，步骤S1中，还检测所述磷酸铁锂电池的充电环境温度值。Applied to the above technical solutions, in the lithium iron phosphate battery management method, in step S1, the charging environment temperature value of the lithium iron phosphate battery is also detected.
应用于上述各个技术方案，根所述的磷酸铁锂电池管理方法中，步骤S2中，检测输入控制模块还对输入的每一磷酸铁锂电池进行ID编码，并按照每一磷酸铁锂电池的ID编码设定好磷酸铁锂电池的计算先后顺序，按照顺序分别发送给计算模块。Applied to each of the above technical solutions, in the described lithium iron phosphate battery management method, in step S2, the detection input control module also performs ID coding on each input lithium iron phosphate battery, and performs ID coding on each input lithium iron phosphate battery according to the information of each lithium iron phosphate battery. The ID code sets the calculation sequence of the lithium iron phosphate battery, and sends them to the calculation module in sequence.
应用于上述各个技术方案，根所述的磷酸铁锂电池管理方法中，步骤S4中，所述充放电控制模块内置写入有磷酸铁锂电池的调整控制方案，所述充放电控制模块根据所述调整信号调用对应的调整控制方案，并发送给充放电系统。Applied to each of the above technical solutions, in the lithium iron phosphate battery management method, in step S4, the charge and discharge control module has a built-in adjustment control scheme for the lithium iron phosphate battery, and the charge and discharge control module is based on the The adjustment signal calls the corresponding adjustment control scheme and sends it to the charging and discharging system.
本发明的有益效果为：The beneficial effects of the present invention are:
本发明通过检测输入控制模块对输入的电池数据分区进行存储，并且，按照先后顺序发送给计算模块进行计算，管理不容易出错，有效性高，并且，通过计算模块设置有基准比较值，基准比较值可以根据实际情况进行写入修改，管理更加贴合实际应用环境，并且，可以根据实时数据与基准比较值的差值，调用对应的调整控制方案，从而对磷酸铁锂电池进行均衡控制和管理，延迟电池的使用寿命。The invention stores the input battery data partition by detecting the input control module, and sends it to the calculation module for calculation in sequence, so that the management is not easy to make mistakes, and the effectiveness is high. The value can be written and modified according to the actual situation, the management is more suitable for the actual application environment, and the corresponding adjustment control scheme can be called according to the difference between the real-time data and the benchmark comparison value, so as to balance the control and management of the lithium iron phosphate battery , delay the battery life.
附图说明Description of drawings
图1为本发明的模块结构连接图。FIG. 1 is a connection diagram of a module structure of the present invention.
具体实施方式Detailed ways
以下结合附图和具体实施例，对本发明进行详细说明。The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
本实施例提供了一种磷酸铁锂电池管理芯片，如图1所示，磷酸铁锂电池管理芯片包括集成设置在芯片内部的检测模块、检测输入控制模块、计算模块、输出控制模块和充放电控制模块：其中，所述检测模块设置电池电压检测输入接口、电池电流检测输入接口和温度检测输入接口，检测模块与外部的磷酸铁锂电池连接，其可以通过外部的检测电路来检测磷酸铁锂电池的电压和电流，并且，可以通过外部的温度传感器检测测磷酸铁锂电池的表面温度、以及环境温度；检测后，将检测数据输入到检测输入控制模块中。This embodiment provides a lithium iron phosphate battery management chip. As shown in FIG. 1 , the lithium iron phosphate battery management chip includes a detection module, a detection input control module, a calculation module, an output control module, and a charge and discharge module integrated inside the chip. Control module: wherein the detection module is provided with a battery voltage detection input interface, a battery current detection input interface and a temperature detection input interface, and the detection module is connected to an external lithium iron phosphate battery, which can detect lithium iron phosphate through an external detection circuit The voltage and current of the battery, and the surface temperature and ambient temperature of the lithium iron phosphate battery can be detected through an external temperature sensor; after detection, the detection data is input into the detection input control module.
所述检测输入控制模块设置有缓存存储器，所述缓存存储器设置有分区存储单元，用于分区存储不同磷酸铁锂电池输入的检测数据；其中，检测输入控制模块还对输入的每一磷酸铁锂电池进行ID编码，并按照每一磷酸铁锂电池的ID编码设定好磷酸铁锂电池的计算先后顺序，按照顺序分别发送给计算模块，计算模块分别计算输入的电压、电流、温度与基准比较值的差值；如此，每一磷酸铁锂电池具有唯一的ID编码，根据ID编码去计算输入的电压、电流、温度与基准比较值的差值，可以在检测多电池时，可以使得计算有序进行，提高计算模块的计算效率，管理有效性高。The detection input control module is provided with a cache memory, and the cache memory is provided with a partition storage unit for partition storage of detection data input by different lithium iron phosphate batteries; wherein, the detection input control module is also provided for each input lithium iron phosphate. The battery is coded by ID, and the calculation sequence of the lithium iron phosphate battery is set according to the ID code of each lithium iron phosphate battery, and sent to the calculation module according to the sequence, and the calculation module calculates the input voltage, current, temperature and benchmark comparison. In this way, each lithium iron phosphate battery has a unique ID code, and according to the ID code to calculate the difference between the input voltage, current, temperature and the reference comparison value, when detecting multiple batteries, the calculation can be It can be carried out in order to improve the calculation efficiency of the calculation module, and the management effectiveness is high.
另外，所述计算模块与检测输入控制模块连接，所述计算模块设置有基准比较值，用于分别计算输入的电压、电流、温度与基准比较值的差值，并且，根据差值输出调整信号给充放电控制模块；所述输出控制模块和充放电控制模块分别与计算模块连接，并且，输出控制模块还与输入缓冲模块连接，输出控制模块用于输出检测数据和计算得到的差值，充放电控制模块用于根据调整信号输出调整控制方案给充放电系统。In addition, the calculation module is connected to the detection input control module, and the calculation module is provided with a reference comparison value, which is used to calculate the difference between the input voltage, current, temperature and the reference comparison value, and output an adjustment signal according to the difference value. To the charge and discharge control module; the output control module and the charge and discharge control module are respectively connected with the calculation module, and the output control module is also connected with the input buffer module, the output control module is used for outputting the detected data and the calculated difference, charging The discharge control module is used to adjust the control scheme to the charging and discharging system according to the adjustment signal output.
其中，所述输出控制模块设置有报告生成代码，用于生成报告并发送给外部显示屏；如此，可以通过外部的显示屏显示检测数据和计算得到的差值，如此，可以通过显示屏进行人工查看和分析。另外，所述输出控制模块还设置有写入端口，用于写入修改所述计算模块的基准比较值；通过设置写入端口，可以根据实际应用场景，修改所述基准比较值，使其使用与实际更加贴合，应对更加灵活。Wherein, the output control module is provided with a report generation code, which is used to generate a report and send it to an external display screen; in this way, the detection data and the calculated difference can be displayed through the external display screen. View and analyze. In addition, the output control module is also provided with a write port for writing and modifying the reference comparison value of the computing module; by setting the write port, the reference comparison value can be modified according to the actual application scenario, so that it can be used It is more in line with the actual situation, and the response is more flexible.
另外，还可以在所述充放电控制模块内置写入有磷酸铁锂电池的调整控制方案，所述充放电控制模块根据所述调整信号调用对应的调整控制方案，并发送给充放电系统，其中，调整控制方案可以根据实际需要设置，比如，根据温度差值，调整电流和电压大小，或者，暂停预设时间充放电等，或者，根据电流或电压差值调整电流和电压大小，或者，暂停预设时间充放电等。In addition, an adjustment control scheme for the lithium iron phosphate battery can also be built in the charge and discharge control module, and the charge and discharge control module calls the corresponding adjustment control scheme according to the adjustment signal, and sends it to the charge and discharge system, wherein , the adjustment control scheme can be set according to actual needs, for example, according to the temperature difference, adjust the current and voltage, or suspend charging and discharging for a preset time, etc., or adjust the current and voltage according to the current or voltage difference, or, pause Preset time charge and discharge, etc.
并且，本实施例还提供了一种磷酸铁锂电池管理方法，包括如下步骤：首先S1：分别检测磷酸铁锂电池的电压值、电流值和表面温度值，并将检测数据输入到检测输入控制模块；其中，所述检测模块设置电池电压检测输入接口、电池电流检测输入接口和温度检测输入接口，检测模块与外部的磷酸铁锂电池连接，其可以通过外部的检测电路来检测磷酸铁锂电池的电压和电流，并且，可以通过外部的温度传感器检测测磷酸铁锂电池的表面温度、以及环境温度；检测后，将检测数据输入到检测输入控制模块中。In addition, this embodiment also provides a lithium iron phosphate battery management method, including the following steps: first S1: respectively detect the voltage value, current value and surface temperature value of the lithium iron phosphate battery, and input the detection data into the detection input control module; wherein, the detection module is provided with a battery voltage detection input interface, a battery current detection input interface and a temperature detection input interface, and the detection module is connected to an external lithium iron phosphate battery, which can detect the lithium iron phosphate battery through an external detection circuit The surface temperature and ambient temperature of the lithium iron phosphate battery can be detected and measured by an external temperature sensor; after detection, the detection data is input into the detection input control module.
然后，S2：检测输入控制模块将检测到的数据按照不同的磷酸铁锂电池分区存储到其设置的缓存存储器；并且，按照设定的先后顺序，将其发送到计算模块；所述检测输入控制模块设置有缓存存储器，所述缓存存储器设置有分区存储单元，用于分区存储不同磷酸铁锂电池输入的检测数据；其中，检测输入控制模块还对输入的每一磷酸铁锂电池进行ID编码，并按照每一磷酸铁锂电池的ID编码设定好磷酸铁锂电池的计算先后顺序，按照顺序分别发送给计算模块，计算模块分别计算输入的电压、电流、温度与基准比较值的差值；如此，每一磷酸铁锂电池具有唯一的ID编码，根据ID编码去计算输入的电压、电流、温度与基准比较值的差值，可以在检测多电池时，可以使得计算有序进行，提高计算模块的计算效率，管理有效性高。Then, S2: the detection input control module stores the detected data in its set cache memory according to different lithium iron phosphate battery partitions; and, according to the set sequence, sends it to the calculation module; the detection input control The module is provided with a cache memory, and the cache memory is provided with a partition storage unit for partition storage of detection data input by different lithium iron phosphate batteries; wherein, the detection input control module also performs ID coding on each input lithium iron phosphate battery, And set the calculation sequence of the lithium iron phosphate battery according to the ID code of each lithium iron phosphate battery, and send them to the calculation module according to the order, and the calculation module calculates the difference between the input voltage, current, temperature and the reference comparison value respectively; In this way, each lithium iron phosphate battery has a unique ID code, and according to the ID code, the difference between the input voltage, current, temperature and the reference comparison value can be calculated. The calculation efficiency of the module is high, and the management effectiveness is high.
S3：计算模块将接受到的检测数据与其设定基准比较值进行差值计算，并且，根据差值计算结果，输出调整信号；另外，所述计算模块与检测输入控制模块连接，所述计算模块设置有基准比较值，用于分别计算输入的电压、电流、温度与基准比较值的差值，并且，根据差值输出调整信号给充放电控制模块；所述输出控制模块和充放电控制模块分别与计算模块连接，并且，输出控制模块还与输入缓冲模块连接，输出控制模块用于输出检测数据和计算得到的差值，充放电控制模块用于根据调整信号输出调整控制方案给充放电系统。S3: the calculation module performs difference calculation between the received detection data and its set reference comparison value, and outputs an adjustment signal according to the difference calculation result; in addition, the calculation module is connected to the detection input control module, and the calculation module A reference comparison value is provided, which is used to calculate the difference between the input voltage, current, temperature and the reference comparison value, and output an adjustment signal to the charge and discharge control module according to the difference; the output control module and the charge and discharge control module are respectively It is connected with the calculation module, and the output control module is also connected with the input buffer module. The output control module is used for outputting the detected data and the calculated difference, and the charging and discharging control module is used for outputting the adjustment control scheme to the charging and discharging system according to the adjustment signal.
其中，所述输出控制模块设置有报告生成代码，用于生成报告并发送给外部显示屏；如此，可以通过外部的显示屏显示检测数据和计算得到的差值，如此，可以通过显示屏进行人工查看和分析。另外，所述输出控制模块还设置有写入端口，用于写入修改所述计算模块的基准比较值；通过设置写入端口，可以根据实际应用场景，修改所述基准比较值，使其使用与实际更加贴合，应对更加灵活。Wherein, the output control module is provided with a report generation code, which is used to generate a report and send it to an external display screen; in this way, the detection data and the calculated difference can be displayed through the external display screen. View and analyze. In addition, the output control module is also provided with a write port for writing and modifying the reference comparison value of the computing module; by setting the write port, the reference comparison value can be modified according to the actual application scenario, so that it can be used It is more in line with the actual situation, and the response is more flexible.
S4：输出控制模块输出检测数据和计算得到的差值，充放电控制模块根据调整信号输出调整控制方案给充放电系统。另外，还可以在所述充放电控制模块内置写入有磷酸铁锂电池的调整控制方案，所述充放电控制模块根据所述调整信号调用对应的调整控制方案，并发送给充放电系统，其中，调整控制方案可以根据实际需要设置，比如，根据温度差值，调整电流和电压大小，或者，暂停预设时间充放电等，或者，根据电流或电压差值调整电流和电压大小，或者，暂停预设时间充放电等S4: The output control module outputs the difference between the detected data and the calculated value, and the charge and discharge control module outputs the adjusted control scheme to the charge and discharge system according to the adjustment signal. In addition, an adjustment control scheme for the lithium iron phosphate battery can also be built in the charge and discharge control module, and the charge and discharge control module calls the corresponding adjustment control scheme according to the adjustment signal, and sends it to the charge and discharge system, wherein , the adjustment control scheme can be set according to actual needs, for example, according to the temperature difference, adjust the current and voltage, or suspend charging and discharging for a preset time, etc., or adjust the current and voltage according to the current or voltage difference, or, pause Preset time charge and discharge, etc.
本发明通过检测输入控制模块对输入的电池数据分区进行存储，并且，按照先后顺序发送给计算模块进行计算，管理不容易出错，有效性高，并且，通过计算模块设置有基准比较值，基准比较值可以根据实际情况进行写入修改，管理更加贴合实际应用环境，并且，可以根据实时数据与基准比较值的差值，调用对应的调整控制方案，从而对磷酸铁锂电池进行均衡控制和管理，延迟电池的使用寿命。The invention stores the input battery data partition by detecting the input control module, and sends it to the calculation module for calculation in sequence, so that the management is not easy to make mistakes, and the effectiveness is high. The value can be written and modified according to the actual situation, the management is more suitable for the actual application environment, and the corresponding adjustment control scheme can be called according to the difference between the real-time data and the benchmark comparison value, so as to balance the control and management of the lithium iron phosphate battery , delay the battery life.
以上仅为本发明的较佳实施例而已，并不用于限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention. Inside.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009204401A (en)* | 2008-02-27 | 2009-09-10 | Nec Corp | Internal short circuit detecting device and method of secondary battery |
| CN101542821A (en)* | 2007-01-11 | 2009-09-23 | 松下电器产业株式会社 | Lithium secondary cell degradation detection method, degradation detector, degradation suppressing device, and cell pack using the same, battery charger |
| CN109765493A (en)* | 2018-12-21 | 2019-05-17 | 北京双登慧峰聚能科技有限公司 | Battery energy storage system monitoring method and system |
| CN110729779A (en)* | 2019-10-12 | 2020-01-24 | 中南大学 | A lithium-ion battery intelligent management system |
- 2022
- 2022-05-06CNCN202210486360.1Apatent/CN114843632A/enactivePending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101542821A (en)* | 2007-01-11 | 2009-09-23 | 松下电器产业株式会社 | Lithium secondary cell degradation detection method, degradation detector, degradation suppressing device, and cell pack using the same, battery charger |
| JP2009204401A (en)* | 2008-02-27 | 2009-09-10 | Nec Corp | Internal short circuit detecting device and method of secondary battery |
| CN109765493A (en)* | 2018-12-21 | 2019-05-17 | 北京双登慧峰聚能科技有限公司 | Battery energy storage system monitoring method and system |
| CN110729779A (en)* | 2019-10-12 | 2020-01-24 | 中南大学 | A lithium-ion battery intelligent management system |
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