CN111403836B - A battery pack temperature detection system and method - Google Patents
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- H—ELECTRICITY
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
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- 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
Description
【技术领域】【Technical field】
本发明涉及新能源技术领域，尤其涉及一种电池包温度检测系统以及方法。The invention relates to the technical field of new energy, in particular to a battery pack temperature detection system and method.
【背景技术】【Background technique】
目前新能源电动汽车动力电池包温度检测都是通过电池管理系统采集温度，由于电池管理系统IO口资源有限，通常以一个温度点表征附近六个单体电池的温度，不能全面采集电池包内每个单体电池和连接导线的温度，从而产生温度检测盲区，对温度盲点区域单体电池出现接触不良或者电池本身原因电池管理系统不能及时预警与控制，导致出现电池包热失控及车辆燃烧的风险。At present, the temperature detection of the power battery pack of new energy electric vehicles is collected through the battery management system. Due to the limited IO port resources of the battery management system, the temperature of the six nearby single cells is usually represented by a temperature point, and it is impossible to comprehensively collect the temperature of each battery pack in the battery pack. The temperature of each single battery and the connecting wire will result in a temperature detection blind spot. The single battery in the temperature blind spot area has poor contact or the battery management system cannot timely warn and control the battery itself, resulting in the risk of thermal runaway of the battery pack and vehicle burning. .
【发明内容】[Content of the invention]
有鉴于此，本发明实施例提供了一种电池包温度检测系统及方法，通过将电池管理系统检测到的电池包内的多个温度点的温度和电池包内的所有电池单体的红外热成像总图相结合，以温度点的温度作为基准温度，在红外热成像总图上计算电池包内的每个电池单体的温度，从而能够全面采集到的电池包内的每个电池单体的温度，对电池包内的温度异常可以提前预警与控制，减小电池包热失控甚至车辆燃烧的风险。In view of this, embodiments of the present invention provide a battery pack temperature detection system and method, by combining the temperature of multiple temperature points in the battery pack detected by the battery management system and the infrared heat Combined with the overall image, the temperature of the temperature point is used as the reference temperature, and the temperature of each battery cell in the battery pack is calculated on the overall infrared thermal imaging picture, so that each battery cell in the battery pack can be comprehensively collected. The temperature of the battery pack can be warned and controlled in advance to reduce the risk of thermal runaway of the battery pack or even vehicle combustion.
一方面，本发明实施例提供了一种电池包温度检测系统，所述电池包内设有多个电池单体，所述多个电池单体中包括至少一个基准电池单体，所述电池包温度检测系统包括：位于电池包箱体内的电池管理系统，配置为获取多个所述基准电池单体的第一温度数据集；连接在所述电池包箱体内侧面的红外热成像系统，配置为获取所述电池包内的所有所述电池单体的红外热成像总图，并以所述第一温度数据集为基准温度，在所述红外热成像总图的基础上，计算所述电池包内的所有所述电池单体的第二温度数据集，所述第二温度数据集用于反映所述电池包内的所述电池单体的温度是否出现异常。In one aspect, an embodiment of the present invention provides a battery pack temperature detection system, wherein a plurality of battery cells are arranged in the battery pack, and the plurality of battery cells include at least one reference battery cell, and the battery pack The temperature detection system includes: a battery management system located in the battery pack box, configured to acquire a plurality of first temperature data sets of the reference battery cells; an infrared thermal imaging system connected to the inner side of the battery pack box, configured as Obtain an infrared thermal imaging general map of all the battery cells in the battery pack, and use the first temperature data set as a reference temperature to calculate the battery pack on the basis of the infrared thermal imaging general map A second temperature data set of all the battery cells in the battery pack, where the second temperature data set is used to reflect whether the temperature of the battery cells in the battery pack is abnormal.
在本发明一实施例中，所述红外热成像系统包括：红外热成像模块，配置为获取所述电池包内的所有所述电池单体的红外热成像总图；以及计算模块，配置为以所述第一温度数据集为基准温度，在所述红外热成像总图的基础上，计算所述电池包内的所有所述电池单体的第二温度数据集。In an embodiment of the present invention, the infrared thermal imaging system includes: an infrared thermal imaging module configured to acquire an overall infrared thermal imaging image of all the battery cells in the battery pack; and a computing module configured to The first temperature data set is a reference temperature, and a second temperature data set of all the battery cells in the battery pack is calculated on the basis of the infrared thermal imaging general map.
在本发明一实施例中，所述电池包内设置多个电池模组，所述电池模组包括至少两个所述电池单体，其中所述至少两个电池单体中包括至少一个所述基准电池单体；其中，所述电池管理系统配置为：获取每一个所述电池模组内的至少一个所述基准电池单体的第一温度数据；所述第一温度数据集包括所有所述基准电池单体的所述第一温度数据。In an embodiment of the present invention, a plurality of battery modules are arranged in the battery pack, and the battery modules include at least two battery cells, wherein the at least two battery cells include at least one of the battery cells. a reference battery cell; wherein the battery management system is configured to: acquire first temperature data of at least one of the reference battery cells in each of the battery modules; the first temperature data set includes all the the first temperature data of the reference battery cell.
在本发明一实施例中，所述计算模块包括：基准温度获取单元，配置为从所述第一温度数据集中获取一个所述电池模组内的基准电池单体的温度数据；图像截取单元，配置为在所述红外热成像总图上截取与所述电池模组相对应的红外热成像分图；以及计算单元，配置为以位于所述电池模组内的基准电池单体的温度数据为基准温度，在所述红外热成像分图的基础上，计算所述电池模组内的所有所述电池单体的第三温度数据集，所述第三温度数据集包括所述电池模组内的所有所述电池单体的温度数据。In an embodiment of the present invention, the computing module includes: a reference temperature obtaining unit, configured to obtain temperature data of a reference battery cell in the battery module from the first temperature data set; an image intercepting unit, It is configured to intercept the infrared thermal imaging sub-map corresponding to the battery module on the general infrared thermal imaging map; and a computing unit is configured to take the temperature data of the reference battery cell located in the battery module as The reference temperature, on the basis of the infrared thermal imaging sub-map, calculate a third temperature data set of all the battery cells in the battery module, and the third temperature data set includes the internal temperature of the battery module. temperature data for all the battery cells.
在本发明一实施例中，多个所述电池模组包括多个第一电池模组和多个第二电池模组；所述红外热成像模块包括：连接在所述电池包箱体的第一内侧面的第一红外热成像单元，配置为获取多个所述第一电池模组内的所有电池单体的第一红外热成像总图；连接在所述电池包箱体的第二内侧面的第二红外热成像单元，配置为获取多个所述第二电池模组内的所有电池单体的第二红外热成像总图，其中所述第一内侧面与所述第二内侧面为所述电池包箱体的两个对立设置的内侧面；合成单元，配置为将所述第一红外热成像总图与所述第二红外热成像总图进行图像合成，生成所述红外热成像总图；其中，合成单元将所述红外热成像总图发送给所述计算模块。In an embodiment of the present invention, the plurality of battery modules include a plurality of first battery modules and a plurality of second battery modules; the infrared thermal imaging module includes: a first battery module connected to the battery pack case A first infrared thermal imaging unit on the inner side, configured to obtain a first general infrared thermal imaging image of all the battery cells in the plurality of first battery modules; connected to the second inner part of the battery pack box The second infrared thermal imaging unit on the side is configured to obtain a second general infrared thermal imaging diagram of all battery cells in the plurality of second battery modules, wherein the first inner side and the second inner side are two oppositely arranged inner sides of the battery pack box; a synthesis unit, configured to perform image synthesis on the first infrared thermal imaging general map and the second infrared thermal imaging general map to generate the infrared thermal imaging Imaging general map; wherein, the synthesis unit sends the infrared thermal imaging general map to the computing module.
在本发明一实施例中，所述多个电池模组包括多个第一电池模组和多个第二电池模组；所述红外热成像模块包括：连接在所述电池包箱体的第一内侧面的第一红外热成像单元，配置为获取多个所述第一电池模组内的所有电池单体的第一红外热成像总图；以及连接在所述电池包箱体的第二内侧面的第二红外热成像单元，配置为获取多个所述第二电池模组内的所有电池单体的第二红外热成像总图，其中所述第一内侧面与所述第二内侧面为所述电池包箱体的两个对立设置的内侧面；In an embodiment of the present invention, the plurality of battery modules include a plurality of first battery modules and a plurality of second battery modules; the infrared thermal imaging module includes: a first battery module connected to the battery pack box A first infrared thermal imaging unit on the inner side, configured to obtain a first general infrared thermal imaging image of all the battery cells in the plurality of first battery modules; and a second infrared thermal imaging unit connected to the battery pack box The second infrared thermal imaging unit on the inner side is configured to obtain a second general infrared thermal imaging diagram of all the battery cells in the plurality of second battery modules, wherein the first inner side and the second inner side are The sides are two oppositely arranged inner sides of the battery pack box;
所述计算模块包括：第一计算模块，配置为在所述第一温度数据集中获取多个所述第一电池模组内的所有电池单体的第四温度数据集，并以所述第四温度数据集为基准温度，在所述第一红外热成像总图的基础上，计算多个所述第一电池模组内的所有所述电池单体的第五温度数据集；以及第二计算模块，配置为在所述第一温度数据集中获取多个所述第二电池模组内的所有电池单体的第六温度数据集，并以所述第六温度数据集为基准温度，在所述第二红外热成像总图的基础上，计算多个所述第二电池模组内的所有所述电池单体的第七温度数据集；其中，所述第二温度数据集包括所述第五温度数据集以及所述第七温度数据集。The calculation module includes: a first calculation module, configured to obtain a plurality of fourth temperature data sets of all battery cells in the first battery module in the first temperature data set, and use the fourth temperature data set The temperature data set is the reference temperature, and on the basis of the first infrared thermal imaging general map, a fifth temperature data set of all the battery cells in the plurality of first battery modules is calculated; and the second calculation a module, configured to obtain a sixth temperature data set of all battery cells in the plurality of second battery modules in the first temperature data set, and use the sixth temperature data set as a reference temperature, in the On the basis of the second infrared thermal imaging general map, a seventh temperature data set of all the battery cells in a plurality of the second battery modules is calculated; wherein, the second temperature data set includes the first temperature data set. Five temperature datasets and the seventh temperature dataset.
另一方面，本发明实施例提供了一种电池包温度检测方法，所述电池包内设有多个电池单模组，所述多个电池模组中包括至少一个基准电池单体，所述电池包温度检测方法包括：获取至少一个所述基准电池单体的第一温度数据集；获取所述电池包内的所有所述电池单体的红外热成像总图；以及以所述第一温度数据集为基准温度，在所述红外热成像总图的基础上，计算所述电池包内的所有所述电池单体的第二温度数据集，所述第二温度数据集用于反映所述电池包内的所述电池单体的温度是否出现异常。On the other hand, an embodiment of the present invention provides a method for detecting temperature of a battery pack, wherein a plurality of battery cell modules are arranged in the battery pack, and the plurality of battery modules include at least one reference battery cell, and the battery pack includes at least one reference battery cell. A battery pack temperature detection method includes: acquiring a first temperature data set of at least one reference battery cell; acquiring an infrared thermal imaging general map of all the battery cells in the battery pack; and using the first temperature The data set is the reference temperature, and on the basis of the general infrared thermal imaging image, a second temperature data set of all the battery cells in the battery pack is calculated, and the second temperature data set is used to reflect the Whether the temperature of the battery cells in the battery pack is abnormal.
在本发明一实施例中，所述电池包内设置多个电池模组，所述多个电池模组包括多个第一电池模组和多个第二电池模组；其中，获取所述电池包内的所有所述电池单体的红外热成像总图包括：获取多个所述第一电池模组内的所有电池单体的第一红外热成像总图；获取多个所述第二电池模组内的所有电池单体的第二红外热成像总图；以及将所述第一红外热成像总图与所述第二红外热成像总图进行图像合成，生成所述红外热成像总图。In an embodiment of the present invention, a plurality of battery modules are arranged in the battery pack, and the plurality of battery modules include a plurality of first battery modules and a plurality of second battery modules; wherein, obtaining the battery The infrared thermal imaging general map of all the battery cells in the package includes: acquiring a plurality of first infrared thermal imaging general maps of all the battery cells in the first battery module; acquiring a plurality of the second batteries a second general infrared thermal imaging diagram of all battery cells in the module; and image synthesis of the first general infrared thermal imaging diagram and the second general infrared thermal imaging diagram to generate the general infrared thermal imaging diagram .
在本发明一实施例中，所述电池包内设置多个电池模组，所述多个电池模组包括多个第一电池模组和多个第二电池模组；其中，获取所述电池包内的多个所述电池单体的红外热成像总图包括：获取多个所述第一电池模组内的所有电池单体的第三红外热成像总图；以及获取多个所述第二电池模组内的所有电池单体的第四红外热成像总图；所述以所述第一温度数据集为基准温度，在所述红外热成像总图的基础上，计算所有所述电池单体的第二温度数据集包括：在所述第一温度数据集中获取多个所述第一电池模组内的所有电池单体的第四温度数据集，并以所述第四温度数据集为基准温度，在所述第三红外热成像总图的基础上，计算多个所述第一电池模组内的所有所述电池单体的第五温度数据集；以及在所述第一温度数据集中获取多个所述第二电池模组内的所有电池单体的第六温度数据集，并以所述第六温度数据集为基准温度，在所述第四红外热成像总图的基础上，计算多个所述第二电池模组内的所有所述电池单体的第七温度数据集；其中，所述第二温度数据集包括所述第五温度数据集以及所述第七温度数据集。In an embodiment of the present invention, a plurality of battery modules are arranged in the battery pack, and the plurality of battery modules include a plurality of first battery modules and a plurality of second battery modules; wherein, obtaining the battery The infrared thermal imaging general map of the plurality of battery cells in the package includes: acquiring a plurality of third infrared thermal imaging general maps of all the battery cells in the first battery module; and acquiring a plurality of the first battery cells. The fourth infrared thermal imaging general map of all battery cells in the second battery module; the first temperature data set is used as the reference temperature, and all the batteries are calculated on the basis of the infrared thermal imaging general map The second temperature data set of the cells includes: acquiring a fourth temperature data set of all battery cells in the plurality of first battery modules in the first temperature data set, and using the fourth temperature data set as a reference temperature, on the basis of the third infrared thermal imaging general map, calculate a fifth temperature data set of all the battery cells in the plurality of first battery modules; and at the first temperature In the data set, a plurality of sixth temperature data sets of all battery cells in the second battery module are obtained, and the sixth temperature data set is used as the reference temperature, and the fourth infrared thermal imaging general map is based on above, calculating a seventh temperature data set of all the battery cells in the plurality of second battery modules; wherein, the second temperature data set includes the fifth temperature data set and the seventh temperature data set.
在本发明一实施例中，所述电池包内设置多个电池模组，所述电池模组包括至少两个所述电池单体，其中所述至少两个电池单体中包括至少一个所述基准电池单体；其中，以所述第一温度数据集为基准温度，在所述红外热成像总图的基础上，计算所述电池包内的所有所述电池单体的第二温度数据集包括：从所述第一温度数据集中获取一个所述电池模组内的基准电池单体的温度数据；在所述红外热成像总图上截取与所述电池模组相对应的红外热成像分图；以及以位于所述电池模组内的所述基准电池单体的温度数据为基准温度，在所述红外热成像分图的基础上，计算所述电池模组内的所有所述电池单体的第三温度数据集，所述第三温度数据集包括所述电池模组内的所有所述电池单体的温度数据。In an embodiment of the present invention, a plurality of battery modules are arranged in the battery pack, and the battery modules include at least two battery cells, wherein the at least two battery cells include at least one of the battery cells. A reference battery cell; wherein, taking the first temperature data set as a reference temperature, and on the basis of the infrared thermal imaging general map, calculate a second temperature data set of all the battery cells in the battery pack Including: acquiring temperature data of a reference battery cell in the battery module from the first temperature data set; intercepting the infrared thermal imaging score corresponding to the battery module on the infrared thermal imaging general map and taking the temperature data of the reference battery cells in the battery module as the reference temperature, and on the basis of the infrared thermal imaging sub-map, calculate all the battery cells in the battery module A third temperature data set of the body, the third temperature data set includes temperature data of all the battery cells in the battery module.
本发明实施例提供了一种电池包内的温度检测系统以及装置，通过将电池管理系统检测到的电池包内的多个温度点的温度和电池包内的所有电池单体的红外热成像总图相结合，以温度点的温度作为基准温度，在红外热成像总图上计算电池包内的每个电池单体的温度，从而能够全面采集到的电池包内的每个电池单体的温度，对电池包内的温度异常可以提前预警与控制，减小电池包热失控甚至车辆燃烧的风险。The embodiments of the present invention provide a temperature detection system and device in a battery pack. The temperature of the temperature point is used as the reference temperature, and the temperature of each battery cell in the battery pack is calculated on the general infrared thermal imaging map, so that the temperature of each battery cell in the battery pack can be comprehensively collected. , the abnormal temperature in the battery pack can be warned and controlled in advance, reducing the risk of thermal runaway of the battery pack and even vehicle burning.
【附图说明】【Description of drawings】
为了更清楚地说明本发明实施例的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图。In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.
图1所示为现有技术中的电池包的结构示意图；FIG. 1 is a schematic structural diagram of a battery pack in the prior art;
图2所示为图1中的一个电池模组的结构示意图；FIG. 2 is a schematic structural diagram of a battery module in FIG. 1;
图3所示为本发明一实施例中的电池包温度检测系统应用到电池包内的结构示意图；FIG. 3 is a schematic structural diagram of a battery pack temperature detection system applied to a battery pack according to an embodiment of the present invention;
图4所示为本发明一实施例提供的一种电池包温度检测系统的结构示意图；FIG. 4 is a schematic structural diagram of a battery pack temperature detection system according to an embodiment of the present invention;
图5所示为本发明一实施例提供的一种电池包内的电池模组的结构示意图；FIG. 5 is a schematic structural diagram of a battery module in a battery pack according to an embodiment of the present invention;
图6所示为本发明另一实施例提供的一种电池包温度检测系统的结构示意图；FIG. 6 is a schematic structural diagram of a battery pack temperature detection system provided by another embodiment of the present invention;
图7所示为本发明另一实施例提供的一种电池包温度检测系统的结构示意图；FIG. 7 is a schematic structural diagram of a battery pack temperature detection system provided by another embodiment of the present invention;
图8所示为本发明另一实施例提供的一种电池包温度检测系统的结构示意图；FIG. 8 is a schematic structural diagram of a battery pack temperature detection system provided by another embodiment of the present invention;
图9所示为本发明一实施例提供的一种电池包温度预警系统的结构示意图；FIG. 9 is a schematic structural diagram of a battery pack temperature warning system according to an embodiment of the present invention;
图10所示为本发明一实施例提供的一种电池包温度检测方法的流程示意图；FIG. 10 is a schematic flowchart of a method for detecting temperature of a battery pack provided by an embodiment of the present invention;
图11所示为本发明另一实施例提供的一种电池包温度检测方法的流程示意图；FIG. 11 is a schematic flowchart of a method for detecting temperature of a battery pack provided by another embodiment of the present invention;
图12所示为本发明另一实施例提供的一种电池包温度检测方法的流程示意图；FIG. 12 is a schematic flowchart of a method for detecting temperature of a battery pack provided by another embodiment of the present invention;
图13所示为本发明另一实施例提供的一种电池包温度检测方法的流程示意图。FIG. 13 is a schematic flowchart of a method for detecting temperature of a battery pack provided by another embodiment of the present invention.
【具体实施方式】【Detailed ways】
为了更好的理解本发明的技术方案，下面结合附图对本发明实施例进行详细描述。In order to better understand the technical solutions of the present invention, the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
应当明确，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。It should be understood that the described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
在本发明实施例中使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本发明。在本发明实施例和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a," "the," and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise.
应当理解，本文中使用的术语“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。It should be understood that the term "and/or" used in this document is only an association relationship to describe the associated objects, indicating that there may be three kinds of relationships, for example, A and/or B, which may indicate that A exists alone, and A and B exist at the same time. B, there are three cases of B alone. In addition, the character "/" in this document generally indicates that the related objects are an "or" relationship.
图1所示为现有技术中的电池包的结构示意图，如图1所示，电池包包括电池包箱体1以及设置在电池包箱体内的多个电池模组2，相邻两个电池模组之间用导线连接；图2所示为每个电池模组2的结构示意图，参照图2所示，每个电池模组2包括多个电池单体21，相邻两个电池单体21之间通过导线连接。现有技术中，由于电池管理系统3的IO口资源有限，通常以一个温度点表征附近电池单体的温度，例如，参照图2所示，一个电池模组2包括九个电池单体21，电池管理系统3通常以该电池模组2中的两个温度点22表征该电池模组2内的八个电池单体的温度，不能全面采集电池包内每个单体电池和连接导线的温度，从而产生温度检测盲区，对温度盲点区域单体电池出现接触不良或者电池本身原因电池管理系统不能及时预警与控制，导致出现电池包热失控及车辆燃烧的风险。因此，本发明实施例提供了一种电池包温度检测系统及方法，通过将电池管理系统检测到的电池包内的多个温度点的温度和电池包内的所有电池单体的红外热成像总图相结合，以温度点的温度作为基准温度，在红外热成像总图的基础上，计算电池包内的每个电池单体的温度，从而能够全面采集到的电池包内的每个电池单体的温度，对电池包内的温度异常可以提前预警与控制，减小电池包热失控甚至车辆燃烧的风险。FIG. 1 is a schematic structural diagram of a battery pack in the prior art. As shown in FIG. 1 , the battery pack includes a
图3所示为本发明一实施例提供的电池包温度检测系统应用在电池包的温度检测的总装结构示意图，如图3所示，电池包温度检测系统包括：电池管理系统3以及红外热成像系统4，其中，电池管理系统3与红外热成像系统4可以采用CAN总线连接以实现电池管理系统3与红外热成像系统4之间的通信(例如数据传递或者图像传递)。电池管理系统3设置在电池包内，红外热成像系统4连接在电池包箱体1的内侧壁。电池包内设置多个电池单体21，多个电池单体中至少一个为基准电池单体，电池管理系统3配置为获取多个基准电池单体的第一温度数据集，也就是获取每个基准电池单体的温度T基准，多个基准电池单体的温度构成了第一温度数据集。FIG. 3 is a schematic diagram of the general assembly structure of the battery pack temperature detection system provided in an embodiment of the present invention applied to the temperature detection of the battery pack. As shown in FIG. 3 , the battery pack temperature detection system includes: a
红外热成像系统4，配置为获取电池包内的所有电池单体21的红外热成像总图，并以第一温度数据集为基准温度，在红外热成像总图的基础上，计算电池包内的所有电池单体的第二温度数据集，具体的，如图4所示，红外热成像系统4包括红外热成像模块41和计算模块42，其中红外热成像模块41配置为获取电池包内的所有所述电池单体的红外热成像总图，计算模块42配置为以第一温度数据集为基准温度，在红外热成像总图的基础上，计算电池包内的所有电池单体的第二温度数据集。具体的，红外热成像模块41获取一个基准电池单体以及位于该基准电池单体周围的多个电池单体的红外温度值，然后根据该基准电池单体的红外温度值T红外以及电池管理系统检测的该基准电池单体的T基准来计算位于该基准电池单体周围的多个电池单体的第二温度数据，多个电池单体的第二温度数据构成了第二温度数据集，其中，第二温度数据集用于反映电池包内的电池单体21的温度是否出现异常，当第二温度数据集中有个别第二温度数据大于其他温度数据时，说明该第二温度数据所对应的电池单体21的温度出现异常，可以根据异常情况提前做出预警，减小电池包热失控。The infrared
本发明实施例提供的电池包温度检测系统，将电池管理系统检测到的电池包内的多个基准电池单体的温度和电池包内的所有电池单体的红外热成像总图相结合，以基准电池单体的温度作为基准温度，在红外热成像总图上计算电池包内的每个电池单体的温度，从而能够全面采集到的电池包内的每个电池单体的温度，对电池包内的温度异常可以提前预警与控制，减小电池包热失控甚至车辆燃烧的风险。The battery pack temperature detection system provided by the embodiment of the present invention combines the temperatures of multiple reference battery cells in the battery pack detected by the battery management system and the infrared thermal imaging general map of all battery cells in the battery pack to obtain The temperature of the reference battery cell is used as the reference temperature, and the temperature of each battery cell in the battery pack is calculated on the general infrared thermal imaging map, so that the temperature of each battery cell in the battery pack can be comprehensively collected. The abnormal temperature in the pack can be warned and controlled in advance, reducing the risk of thermal runaway of the battery pack or even vehicle burning.
当电池包内设置多个电池单体时，基准电池单体在多个电池单体内的分布情况极为重要，例如当电池包内设置N个基准电池单体(N为大于或者等于二的整数)，若基准单体设置在电池包的最边上位置时，那么距离该基准电池单体最远的电池单体的温度很有可能计算不准确，影响到整个电池包内的电池单体的温度检测的准确性，因此，在本发明一实施例中，将电池包内的电池进行分组，即电池包内设置多个电池模组2，每个电池模组2包括至少两个电池单体，至少两个电池单体中至少一个电池单体为基准电池单体。电池管理系统3则进一步配置为获取每一个电池模组内的至少一个基准电池单体的第一温度数据，整个电池包内的基准电池单体的第一温度数据构成了第一温度数据集。同时，如图6所示，红外热成像系统4中的计算模块42进一步包括基准温度获取单元421、图像截取单元422以及计算单元423；其中基准温度获取单元421配置为从第一温度数据集中获取一个电池模组内的所有基准电池的温度数据，图像截取模块422配置为在红外热成像总图上截取与该电池模组相对应的红外热成像分图，计算单元423则配置为以位于电池模组内的基准电池单体的温度数据为基准温度，在该红外热成像分图的基础上，计算该电池模组内所有电池单体的温度数据。本发明实施例中，通过以一个电池模组为单位，每个电池模组内包括至少一个基准电池单体，以电池管理系统检测到的该基准电池的温度为基准温度，以该电池模组的红外热成像分图为基础计算该电池模组内的所有电池单体的实际温度，能够快速准确的获取电池包内的每个电池的温度。When multiple battery cells are set in the battery pack, the distribution of the reference battery cells in the multiple battery cells is extremely important. For example, when N reference battery cells are set in the battery pack (N is an integer greater than or equal to two) , if the reference cell is set at the most edge of the battery pack, the temperature of the battery cell farthest from the reference battery cell is likely to be inaccurately calculated, affecting the temperature of the battery cell in the entire battery pack Therefore, in an embodiment of the present invention, the batteries in the battery pack are grouped, that is, a plurality of
具体的，图5示出了电池包内的一个电池模组的电池单体分布，该电池模组一共有八个电池单体，八个电池单体中包括两个基准电池单体，这八个电池单体分别为第一电池单体211、第二电池单体212、第三电池单体213、第四电池单体214、第五电池单体215、第六电池单体216、第一基准电池单体221以及第二基准电池单体222，其中第一电池单体211、第二电池单体212、第三电池单体213、第四电池单体214位于第一基准电池单体221周围；第五电池单体215、第六电池单体21Specifically, FIG. 5 shows the battery cell distribution of a battery module in the battery pack. The battery module has a total of eight battery cells, and the eight battery cells include two reference battery cells. The battery cells are the
6位于第二基准电池单体222周围；其中电池管理系统3检测到第一基准电池单体221的基准温度为T221-基准，第二基准电池单体222的基准温度为T222-基准，红外热成像系统4中的图像截取模块422配置为在红外热成像总图上截取与该电池模组相对应的红外热成像分图，从该电池模组的红外热成像分图上获取该电池模组2中的八个电池单体的红外温度分别为T211-红外、T212-红外、T213-红外、T214-红外、T215-红外、T216-红外、T221-红外、T222-红外，红外热成像系统则根据电池管理系统检测到的第一基准电池单体221的T221-基准以及热红外成像系统检测到的该第一基准电池单体221的T221-红外，寻找T221-基准与T221-红外两个之间的算数关系，并根据该算数关系以及T211-红外、T212-红外、T213-红外、T214-红外计算第一电池单体211、第二电池单体212、第三电池单体213以及第四电池单体214的温度T。例如当T221-基准与T221-红外两个之间的算数关系为T221-基准-T221-红外时，那么第一电池单体211的温度T211-T211-红外＝T221-基准-T221-红外，即T211＝T221-基准-T221-红外+T211-红外。即可计算第一电池单体T211的温度T211。第二电池单体212、第三电池单体213、第四电池单体214的温度的算法和第一电池单体211的温度算法一样。同理，第五电池单体215、第六电池单体216的温度是根据T215-红外、T216-红外、T222-红外、T222-基准计算得到的，计算的方法和根据T211-红外、T221-基准、T221-红外计算T211的方法一样，在此不再做赘述。同理，电池包内的其他电池模组内的所有电池单体的温度与上述电池模组内的所有电池单体的温度的计算方法一样。6 is located around the second
应当理解，第一基准电池单体221的T221-基准、T221-红外之间的算数关系可以是任何一种合理的算数关系，不仅限于上述所述的“之差”的算数关系，只要能够使得计算出来的电池单体的温度相对比较准确，第一基准电池单体221的T221-基准、T221-红外之间的算数关系不仅限于“之差”的关系。It should be understood that the arithmetic relationship between T 221-reference and T 221-infrared of the first
另外，如图5所示，由于该截取的区域内有两个基准电池单体，而第四电池单体214距离第一基准电池单体221和第二基准电池单体222的距离相同，那么在计算第四电池单体214的温度T214时，可以以第一基准电池单体221为基准，也可以以第二基准电池单体222为基准，还可以同时以第一基准电池单体221和第二基准电池单体222为基准计算得到两个温度数值，并将该两个温度数值进行平均值计算后得到的数值为第四电池单体214的T214。因此，如果一个电池单体离两个基准电池单体的距离相差很小时，计算该电池单体的温度时可以以两个基准电池单体中的任何一个基准电池单体为基础，还可以同时以两个基准电池单体的温度为基础。In addition, as shown in FIG. 5 , since there are two reference battery cells in the intercepted area, and the distances between the
电池包内的电池模组的红外热成像分图中反应的该电池模组内的所有电池单体的温度是否准确，与红外热成像系统设置在电池包内的位置有很大的关系，例如当红外热成像系统设置在电池包内的左侧壁上，那么位于电池包内的右侧的电池模组的红外热成像分图所反应的该电池模组的红外温度的准确度则较低，因此在本发明一实施例中，参见图3和图7，将多个电池模组划分为多个第一电池模组(即图3中左边两个电池模组2)和多个第二电池模组(即图3中右边两个电池模组2)；红外热成像模块包括：连接在电池包箱体1的第一内侧面的第一红外热成像单元411，配置为获取多个第一电池模组内的所有电池单体的第一红外热成像总图；连接在所述电池包箱体的第二内侧面的第二红外热成像单元412，配置为获取多个第二电池模组内的所有电池单体的第二红外热成像总图，其中第一内侧面与所述第二内侧面为所述电池包箱体的两个对立设置的内侧面；合成单元413，配置为将所述第一红外热成像总图与所述第二红外热成像总图进行图像合成，生成所述红外热成像总图；其中，合成单元413将所述红外热成像总图发送给所述计算模块42。本发明实施例中，对于位于电池包箱体内的两侧的电池模组，分别采用不同的红外热成像模块进行拍照，将两个红外热成像模块获取的两个图像进行图像合成，在合成的红外热成像图即为红外热成像总图，如此一来，红外热成像模块准确的获取了位于电池包内各个位置的电池单体的红外温度，能够更加准确的计算得出电池包内的各个电池的温度。Whether the temperature of all battery cells in the battery module reflected in the infrared thermal imaging sub-image of the battery module in the battery pack is accurate has a great relationship with the position of the infrared thermal imaging system in the battery pack. For example, When the infrared thermal imaging system is arranged on the left side wall of the battery pack, the accuracy of the infrared temperature of the battery module reflected by the infrared thermal imaging sub-map of the battery module located on the right side of the battery pack is low. , so in an embodiment of the present invention, referring to FIG. 3 and FIG. 7 , the plurality of battery modules are divided into a plurality of first battery modules (that is, the two
获取两个红外热成像图时，当计算模块42在计算电池包内的所有电池单体的温度时，可以以一张图(也就是上述的将两个红外热成像图合成一张图)为基础来计算，也可以分别以两张红外热成像图进行分别计算，因此，在本发明另一实施例中，如图8所示，多个电池模组包括多个第一电池模组和多个第二电池模组红外热成像模块包括：连接在电池包箱体的第一内侧面的第一红外热成像单元411，配置为获取多个第一电池模组内的所有电池单体的第一红外热成像总图；以及连接在电池包箱体的第二内侧面的第二红外热成像单元412，配置为获取多个第二电池模组内的所有电池单体的第二红外热成像总图，其中第一内侧面与所述第二内侧面为所述电池包箱体的两个对立设置的内侧面；计算模块42包括：第一计算模块426，配置为在所述第一温度数据集中获取多个第一电池模组内的所有电池单体的第四温度数据集，并以第四温度数据集为基准温度，在第一红外热成像总图的基础上，计算多个第一电池模组内的所有电池单体的第五温度数据集；以及第二计算模块425，配置为在第一温度数据集中获取多个所述第二电池模组内的所有电池单体的第六温度数据集，并以第六温度数据集为基准温度，在第二红外热成像总图的基础上，计算多个第二电池模组内的所有电池单体的第七温度数据集；其中，第二温度数据集包括第五温度数据集以及第七温度数据集。When two infrared thermal imaging images are acquired, when the
作为本发明的另一面，本发明实施例还提供了一种电池包温度预警系统，包括红外热成像系统4、电池管理系统3、整车控制器6以及中控大屏5，其中红外热成像系统4、电池管理系统3、整车控制器6以及中控大屏5通过一条CAN总线串联，其中电池管理系统3设置在电池包内，红外热成像系统4连接在电池包箱体1的内侧壁。电池包内设置多个电池单体，多个电池单体中至少一个为基准电池单体，电池管理系统3配置为获取多个基准电池单体的第一温度数据集，也就是获取每个基准电池单体的温度T-基准，多个基准电池单体的温度构成了第一温度数据集。红外热成像系统4，配置为获取电池包内的所有电池单体21的红外热成像总图，并以第一温度数据集为基准温度，在红外热成像总图的基础上，计算电池包内的所有电池单体的第二温度数据集，当红外热成像系统计算得到电池包内的所有电池单体的第二温度数据集之后，将该第二温度数据集传送给电池管理系统，电池管理系统根据第二温度数据集，并结合电池管理系统检测得到的电池单体的当前电流、电压以及电池包内的环境温度对电池包内的电池单体进一步分析，同时红外热成像系统4还可以将计算得到的第二温度数据集传输给整车控制器或者中控大屏以实现车辆运行各工况下安全控制以及人机交互温度图像或者诊断。As another aspect of the present invention, an embodiment of the present invention also provides a battery pack temperature warning system, including an infrared
由于本发明实施例提供的电池包温度预警系统，将电池管理系统检测到的电池包内的多个温度点的温度和电池包内的所有电池单体的红外热成像总图相结合，以温度点的温度作为基准温度，在红外热成像总图上计算电池包内的每个电池单体的温度，从而能够全面采集到的电池包内的每个电池单体的温度，对电池包内的温度异常可以提前预警与控制，减小电池包热失控甚至车辆燃烧的风险。Due to the battery pack temperature early warning system provided by the embodiment of the present invention, the temperature of multiple temperature points in the battery pack detected by the battery management system is combined with the infrared thermal imaging general map of all battery cells in the battery pack to obtain the temperature The temperature of the point is used as the reference temperature, and the temperature of each battery cell in the battery pack is calculated on the general infrared thermal imaging map, so that the temperature of each battery cell in the battery pack can be comprehensively collected. Abnormal temperature can be warned and controlled in advance, reducing the risk of thermal runaway of the battery pack or even vehicle burning.
应当理解，红外热成像系统4与电池管理系统3之间如何具体的结合得到电池包内每个单体电池的温度的过程，如前述所述，在此不再做赘述。It should be understood that the specific combination between the infrared
另一面，图10所示为本发明实施例提供的一种电池包温度检测方法，其中电池包内设有多个电池单模组，多个电池模组中包括至少一个基准电池单体；如图10所示，电池包温度检测方法包括以下步骤：On the other hand, FIG. 10 shows a battery pack temperature detection method provided by an embodiment of the present invention, wherein a plurality of battery cell modules are arranged in the battery pack, and the plurality of battery modules include at least one reference battery cell; such as As shown in Figure 10, the battery pack temperature detection method includes the following steps:
步骤S101：获取至少一个基准电池单体的第一温度数据集；Step S101: acquiring a first temperature data set of at least one reference battery cell;
步骤S102：获取电池包内的所有电池单体的红外热成像总图；以及Step S102: obtaining an infrared thermal imaging general map of all battery cells in the battery pack; and
步骤S103：以第一温度数据集为基准温度，在红外热成像总图的基础上，计算电池包内的所有电池单体的第二温度数据集。Step S103 : using the first temperature data set as a reference temperature, and on the basis of the overall infrared thermal imaging map, calculate a second temperature data set of all battery cells in the battery pack.
其中，第二温度数据集用于反映电池包内的电池单体21的温度是否出现异常，当第二温度数据集中有个别第二温度数据大于其他温度数据时，说明该第二温度数据所对应的电池单体21的温度出现异常，可以根据异常情况提前做出预警，减小电池包热失控。The second temperature data set is used to reflect whether the temperature of the
本发明实施例提供的电池包温度检测方法，将电池包内的多个基准电池单体的温度和电池包内的所有电池单体的红外热成像总图相结合，以温度点的温度作为基准温度，在红外热成像总图上计算电池包内的每个电池单体的温度，从而能够全面采集到的电池包内的每个电池单体的温度，对电池包内的温度异常可以提前预警与控制，减小电池包热失控甚至车辆燃烧的风险。In the battery pack temperature detection method provided by the embodiment of the present invention, the temperature of a plurality of reference battery cells in the battery pack is combined with the infrared thermal imaging general map of all the battery cells in the battery pack, and the temperature of the temperature point is used as the benchmark Temperature, calculate the temperature of each battery cell in the battery pack on the general infrared thermal imaging map, so that the temperature of each battery cell in the battery pack can be comprehensively collected, and the abnormal temperature in the battery pack can be warned in advance and control, reducing the risk of thermal runaway of the battery pack and even vehicle burning.
当电池包内设置多个电池单体时，基准电池单体在多个电池单体内的分布情况极为重要，例如当电池包内设置N个基准电池单体(N为大于或者等于二的整数)，若基准单体设置在电池包的最边上位置时，那么距离该基准电池单体最远的电池单体的温度很有可能计算不准确，影响到整个电池包内的电池单体的温度检测的准确性，因此，在本发明一实施例中，在对电池包的温度进行检测前，首先将电池包内的电池进行分组，如图3所示，即电池包内设置多个电池模组，每个电池模组包括至少两个电池单体，至少两个电池单体中至少一个电池单体为基准电池单体。如图11所示，其中，步骤S103进一步包括：When multiple battery cells are set in the battery pack, the distribution of the reference battery cells in the multiple battery cells is extremely important. For example, when N reference battery cells are set in the battery pack (N is an integer greater than or equal to two) , if the reference cell is set at the most edge of the battery pack, the temperature of the battery cell farthest from the reference battery cell is likely to be inaccurately calculated, affecting the temperature of the battery cell in the entire battery pack Therefore, in an embodiment of the present invention, before the temperature of the battery pack is detected, the batteries in the battery pack are firstly grouped, as shown in FIG. 3 , that is, a plurality of battery modules are set in the battery pack Each battery module includes at least two battery cells, and at least one battery cell in the at least two battery cells is a reference battery cell. As shown in Figure 11, wherein, step S103 further includes:
步骤S1031：从第一温度数据集中获取一个电池模组内的基准电池单体的温度数据；Step S1031: Acquire temperature data of a reference battery cell in a battery module from the first temperature data set;
步骤S1032：在红外热成像总图上截取与该电池模组相对应的红外热成像分图；以及Step S1032: intercepting the infrared thermal imaging sub-images corresponding to the battery module on the infrared thermal imaging general image; and
步骤S1033：以位于该电池模组内的基准电池单体的温度数据为基准温度，在红外热成像分图的基础上，计算该电池模组内的所有电池单体的第三温度数据集，第三温度数据集包括所述电池模组内的所有电池单体的温度数据。Step S1033: Taking the temperature data of the reference battery cells in the battery module as the reference temperature, and on the basis of the infrared thermal imaging sub-map, calculate the third temperature data set of all the battery cells in the battery module, The third temperature data set includes temperature data of all battery cells within the battery module.
具体的，图5示出了电池包内的一个电池模组的电池单体分布，该电池模组一共有八个电池单体，八个电池单体中包括两个基准电池单体，这八个电池单体分别为第一电池单体211、第二电池单体212、第三电池单体213、第四电池单体214、第五电池单体215、第六电池单体216、第一基准电池单体221以及第二基准电池单体222，其中第一电池单体211、第二电池单体212、第三电池单体213、第四电池单体214位于第一基准电池单体221周围；第五电池单体215、第六电池单体216位于第二基准电池单体222周围；其中电池管理系统3检测到第一基准电池单体221的基准温度为T221-基准，第二基准电池单体222的基准温度为T222-基准，红外热成像系统检测到该八个电池单体的红外温度分别为T211-红外、T212-红外、T213-红外、T214-红外、T215-红外、T216-红外、T221-红外、T222-红外，红外热成像系统则根据电池管理系统检测到的第一基准电池单体221的T221-基准以及热红外成像系统检测到的该第一基准电池单体221的T221-红外，寻找T221-基准与T221-红外两个之间的算数关系，并根据该算数关系以及T211-红外、T212-红外、T213-红外、T214-红外计算第一电池单体211、第二电池单体212、第三电池单体213以及第四电池单体214的温度T。例如当T221-基准与T221-红外两个之间的算数关系为T221-基准-T221-红外时，那么第一电池单体211的温度T211-T211-红外＝T221-基准-T221-红外，即T211＝T221-基准-T221-红外+T211-红外。即可计算第一电池单体T211的温度T211。第二电池单体212、第三电池单体213、第四电池单体214的温度的算法和第一电池单体211的温度算法一样。同理，第五电池单体215、第六电池单体216的温度是根据T215-红外、T216-红外、T222-红外、T222-基准计算得到的，计算的方法和根据T211-红外、T221-基准、T221-红外计算T211的方法一样，在此不再做赘述。Specifically, FIG. 5 shows the battery cell distribution of a battery module in the battery pack. The battery module has a total of eight battery cells, and the eight battery cells include two reference battery cells. The battery cells are the
应当理解，第一基准电池单体221的T221-基准、T221-红外之间的算数关系可以是任何一种合理的算数关系，不仅限于上述所述的“之差”的算数关系，只要能够使得计算出来的电池单体的温度相对比较准确，第一基准电池单体221的T221-基准、T221-红外之间的算数关系不仅限于“之差”的关系。It should be understood that the arithmetic relationship between T 221-reference and T 221-infrared of the first
本发明实施例通过以一个电池模组为单位，每个电池模组内包括至少一个基准电池单体，以电池管理系统检测到的该基准电池单体的温度为基准温度，以该电池模组的红外热成像分图为基础计算该电池模组内的所有电池单体的实际温度，能够快速准确的获取电池包内的每个电池的温度。In the embodiment of the present invention, a battery module is used as a unit, each battery module includes at least one reference battery cell, the temperature of the reference battery cell detected by the battery management system is used as the reference temperature, and the battery module is The actual temperature of all battery cells in the battery module is calculated based on the infrared thermal imaging sub-map of the battery module, which can quickly and accurately obtain the temperature of each battery in the battery pack.
电池包内的电池模组的红外热成像分图中反应的该电池模组内的所有电池单体的温度是否准确，与红外热成像系统设置在电池包内的位置有很大的关系，例如当红外热成像系统设置在电池包内的左侧壁上，那么位于电池包内的右侧的电池模组的红外热成像分图所反应的该电池模组的红外温度的准确度则较低，因此在本发明一实施例中，参见图3和图7，将多个电池模组划分为多个第一电池模组(即图3中左边两个电池模组2)和多个第二电池模组(即图3中右边两个电池模组2)；此时，如图12所示，步骤S102具体的包括以下步骤：Whether the temperature of all battery cells in the battery module reflected in the infrared thermal imaging sub-image of the battery module in the battery pack is accurate has a great relationship with the position of the infrared thermal imaging system in the battery pack. For example, When the infrared thermal imaging system is arranged on the left side wall of the battery pack, the accuracy of the infrared temperature of the battery module reflected by the infrared thermal imaging sub-map of the battery module located on the right side of the battery pack is low. , so in an embodiment of the present invention, referring to FIG. 3 and FIG. 7 , the plurality of battery modules are divided into a plurality of first battery modules (that is, the two
步骤S1021：获取多个第一电池模组内的所有电池单体的第一红外热成像总图；Step S1021 : acquiring a first infrared thermal imaging general map of all battery cells in the plurality of first battery modules;
步骤S1022：获取多个第二电池模组内的所有电池单体的第二红外热成像总图；以及Step S1022 : obtaining a second infrared thermal imaging general image of all battery cells in the plurality of second battery modules; and
步骤S1023：将第一红外热成像总图与第二红外热成像总图进行图像合成，生成红外热成像总图。Step S1023: Perform image synthesis on the first general infrared thermal imaging map and the second general infrared thermal imaging map to generate a general infrared thermal imaging map.
本发明实施例中，对于位于电池包箱体内的两侧的电池模组，分别采用不同的红外热成像模块进行拍照，将两个红外热成像模块获取的两个图像进行图像合成，在合成的红外热成像图即为红外热成像总图，如此一来，红外热成像模块准确的获取了位于电池包内各个位置的电池单体的红外温度，能够更加准确的计算得出电池包内的各个电池的温度。In the embodiment of the present invention, for the battery modules located on both sides of the battery pack box, different infrared thermal imaging modules are used to take pictures, and the two images obtained by the two infrared thermal imaging modules are combined. The infrared thermal imaging map is the general infrared thermal imaging map. In this way, the infrared thermal imaging module can accurately obtain the infrared temperature of the battery cells located at various positions in the battery pack, and can more accurately calculate the temperature of each battery cell in the battery pack. temperature of the battery.
获取两个红外热成像图后，也就是在步骤S1021以及步骤S1022后，不仅可以进行上述所述的步骤S1023将两个分图合成一个总图，然后继续进行步骤S103，还可以分别以两张红外热成像图进行分别计算，如图13所示，即步骤S102具体包括：After acquiring two infrared thermal imaging images, that is, after step S1021 and step S1022, not only can the above-mentioned step S1023 be performed to combine the two sub-images into one overall image, and then proceed to step S103, two The infrared thermal images are calculated separately, as shown in Figure 13, that is, step S102 specifically includes:
步骤S1021：获取多个第一电池模组内的所有电池单体的第三红外热成像总图；以及Step S1021 : obtaining a third general infrared thermal image of all battery cells in the plurality of first battery modules; and
步骤S1022：获取多个第二电池模组内的所有电池单体的第四红外热成像总图；Step S1022: acquiring a fourth general infrared thermal imaging image of all battery cells in the plurality of second battery modules;
步骤S103具体包括：Step S103 specifically includes:
步骤S1031:在第一温度数据集中获取多个第一电池模组内的所有电池单体的第四温度数据集，并以第四温度数据集为基准温度，在第三红外热成像总图的基础上，计算多个第一电池模组内的所有电池单体的第五温度数据集；以及Step S1031: Obtain the fourth temperature data set of all the battery cells in the plurality of first battery modules in the first temperature data set, and use the fourth temperature data set as the reference temperature, in the third infrared thermal imaging general map. based on calculating a fifth temperature data set for all battery cells within the plurality of first battery modules; and
步骤S1032:在第一温度数据集中获取多个第二电池模组内的所有电池单体的第六温度数据集，并以第六温度数据集为基准温度，在第四红外热成像总图的基础上，计算多个第二电池模组内的所有所述电池单体的第七温度数据集；Step S1032: Obtain the sixth temperature data set of all the battery cells in the plurality of second battery modules in the first temperature data set, and use the sixth temperature data set as the reference temperature, in the fourth infrared thermal imaging general map. On the basis, calculating a seventh temperature data set of all the battery cells in the plurality of second battery modules;
其中，第二温度数据集包括所述第五温度数据集以及所述第七温度数据集。Wherein, the second temperature data set includes the fifth temperature data set and the seventh temperature data set.
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明保护的范围之内。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection.
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