WO2022135520A1 - 一种电芯容量异常判断方法及装置、车辆、存储介质 - Google Patents
一种电芯容量异常判断方法及装置、车辆、存储介质 Download PDFInfo
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4285—Testing apparatus
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
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- the present application relates to the technical field of power batteries, and in particular to a method and device for judging abnormal cell capacity, a vehicle, and a storage medium.
- the embodiments of the present application disclose a method and device for judging abnormal cell capacity, a vehicle, and a storage medium, which can solve or partially solve the problem of abnormal cell capacity existing in the prior art.
- a first aspect of the embodiments of the present application discloses a method for judging abnormal cell capacity, the method comprising:
- the preset first number of lowest voltage cell strings is to sort all voltage cell strings according to voltage, and use the cell string with the lowest voltage Start to sequentially select the preset first number of cell strings in the direction of high voltage;
- the preset second number of highest-voltage battery cell strings is to sort all voltage battery strings according to voltage, and use the battery string with the highest voltage Start to sequentially select the second preset number of cell strings in the direction of low voltage;
- a second aspect of the embodiments of the present application discloses a device for judging abnormal cell capacity, the device comprising:
- the charging start signal acquisition module is used to acquire the battery charging start signal
- the first string number obtaining module is used to obtain the string number of the battery string with the first minimum voltage preset at the beginning of charging;
- the charging end signal acquisition module is used to acquire the battery charging end signal
- the second string number obtaining module is used to obtain the string number of the preset second number of highest voltage battery cell strings at the end of charging;
- a judging module for judging whether the preset first number of lowest-voltage battery cell strings has the same number of battery cell strings as the preset second number of highest-voltage battery cell strings, and if they are the same, the number of strings Cell strings with the same number have abnormal cell capacity.
- a third aspect of embodiments of the present application discloses a vehicle, the vehicle includes one or more processors; and one or more machine-readable media having instructions stored thereon, when executed by the one or more processors , so that the vehicle executes the method for judging abnormal cell capacity disclosed in the first aspect of the embodiments of the present application.
- a fourth aspect of the embodiments of the present application discloses a computer-readable storage medium storing a computer program, wherein the computer program enables a computer to execute the method for judging abnormal cell capacity disclosed in the first aspect of the embodiments of the present application.
- the embodiments of the present application have the following beneficial effects: if the solution proposed by the embodiments of the present application recognizes a preset first number of cell strings with the lowest voltage at the beginning of charging and a preset second number of cells at the end of charging If the same cell string exists in the cell string with the highest voltage, it means that the capacity of the cell string is abnormal.
- FIG. 1 is a schematic flowchart of a method for judging abnormal cell capacity disclosed in an embodiment of the present application
- FIG. 2 is a schematic flowchart of another method for judging abnormal cell capacity disclosed in an embodiment of the present application
- FIG. 3 is a schematic block diagram of a device for judging abnormal cell capacity disclosed in an embodiment of the present application.
- An embodiment of the present application provides a method for judging abnormal cell capacity, which is mainly based on whether the cell string with the lowest voltage at the beginning of charging the power battery is the same cell string as the cell string with the highest voltage at the end of charging, and if so, the description The battery capacity is abnormal.
- the following description will be given in conjunction with specific embodiments.
- FIG. 1 it is a schematic flowchart of an embodiment of a method for judging abnormal cell capacity according to an embodiment of the present application, including:
- obtaining the battery charging start signal means that the battery is about to or just enters the charging state. Specifically, for example, it can be determined by the value of the charging state parameter or the value of the message. For example, when the value reaches the set value, the battery starts to be charged.
- the value of the state-of-charge parameter or the message value signal obtained at this time can be regarded as the battery charging start signal;
- the power battery includes a plurality of battery cell strings, each battery cell string has a string number, and the voltage value of each battery cell string is obtained when charging starts, and the preset first number of the lowest voltage battery cell string is to combine all the voltage battery cells.
- the strings are sorted according to the voltage, and the preset first number of cell strings are selected in order from the cell string with the lowest voltage to the high voltage direction;
- the preset first number of the lowest voltage cell strings may have only one string number, that is, the one corresponding to the lowest voltage; in some embodiments, there may be more than one, for example, three, then at this time Then obtain the serial numbers of the 3 cell strings with the lowest voltage;
- the charging ends when it reaches the set SOC value, and if the SOC value for charging cut-off is not set, it usually ends when the charging reaches the default value;
- the preset second number of cell strings with the highest voltage is to sort all voltage cell strings according to the voltage size, and start with the cell string with the highest voltage in the direction of low voltage. Select the preset second number of cell strings;
- the preset second number of strings of the highest voltage cell strings may be only one, that is, the one corresponding to the highest voltage; in some embodiments, there may be more than one, for example, three, then at this time Then get the string numbers of the 3 cell strings with the highest voltage;
- the voltage increases of each cell string are basically the same or similar, so the cell string with the lowest voltage at the beginning of charging usually cannot become the cell string with the highest voltage at the end of charging. Based on this, this implementation If the method proposed in the example identifies that the cell string with the lowest voltage at the beginning of charging and the cell string with the highest voltage at the end of charging are the same cell string, it means that the capacity of the cell string is abnormal. Further, if the string of cells is a single cell, it means that the capacity of the single cell is abnormally attenuated or has other problems; if the string of cells contains multiple cells, it means that the capacity of at least one of the cells is abnormally attenuated. Or there are other problems.
- the string numbers of multiple (at least 2) lowest-voltage battery cell strings may be obtained at the beginning of charging, and the string numbers of multiple (at least 2) highest-voltage battery cell strings may be obtained at the end of charging. number, and then determine whether there are battery strings with the same number of strings.
- This method can detect multiple battery strings at the same time, and can detect when multiple battery strings are abnormal at the same time, and can also prevent multiple battery strings.
- the abnormality of the core string is similar to the situation of missed detection.
- the situation of missed detection can be: the abnormal conditions of multiple battery strings are very similar, and the detected battery string A is the lowest voltage battery string at the beginning of charging, but At the end of charging, cell string B, which is very similar to cell string A, is detected as the highest voltage cell string. At this time, if only the lowest and the highest cell string is judged, a missed detection will occur.
- the cell strings in the various embodiments of the present application not only include the case where each cell string includes two or more cells, but also include the case where each cell string only includes one cell.
- the big data cloud or the local BMS can make the above judgment and send the alarm information, and the alarm information can be sent to the background service personnel, so as to analyze the cause of the failure and determine the problem in time. And repair the vehicle to improve the battery life and performance degradation caused by the abnormal reduction of battery capacity, and improve the user experience.
- FIG. 2 is a schematic flowchart of another embodiment of the method for judging abnormal battery cell capacity according to an embodiment of the present application. include:
- the fault diagnosis of the system can be performed through the BMS, and the fault status of the battery system can be obtained.
- the reasons for the fault status can include, but are not limited to, the cell voltage is too high, the cell voltage is too low, and the temperature is too high. High, relay adhesion, etc.; when there is no fault in the battery system, subsequent actions will be allowed; when there is a fault in the battery system, the process will end;
- the validity status of the signal message can be judged. Specifically, for example, the judgment can be made by reading the validity check bit of the message. When the check bit is a preset value It is valid when it is valid, and subsequent actions will be allowed; when the check digit is not a preset value, it is invalid, and the process will end;
- the situation that may affect the judgment of abnormal cell capacity is excluded, so that subsequent It is more accurate to judge abnormal cell capacity.
- the above method of judging the battery system fault state information and the validity state of the signal message can be understood as first judging whether the battery is in a normal charging state, and then acquiring the battery charging start signal when the battery is in a normal charging state.
- Other ways of judging whether the battery is in a normal charging state for example, can also be a way of judging battery system fault state information or judging the validity state of a signal message.
- the embodiment of the present application also provides a device for judging abnormal cell capacity.
- FIG. 3 it is a schematic block diagram of a device for judging abnormal battery capacity proposed by the present application, including:
- a charging start signal acquisition module 301 configured to acquire a battery charging start signal
- a battery system information acquisition module 302 configured to acquire battery system fault status information
- a signal packet validity obtaining module 303 configured to obtain the signal packet validity status
- the first string number obtaining module 304 is used to obtain the preset first number of minimum voltage cell strings when charging starts when the battery system fault status information is no fault and the signal packet validity status is valid. serial number;
- the charging end signal acquisition module 305 is used to acquire the battery charging end signal
- the second string number obtaining module 306 is used to obtain the string number of the preset second number of highest voltage battery cell strings when charging ends;
- the determination module 307 is configured to determine whether the preset first quantity of the lowest voltage cell strings has the same number of cell strings as the preset second quantity of the highest voltage cell strings; The cell strings with the same number have abnormal cell capacity;
- the alarm module 308 is configured to send alarm information when there is an abnormal capacity of the battery cell string.
- the embodiment of the present application further discloses a vehicle, which includes the device for judging abnormality of battery cell capacity.
- the embodiment of the present application further discloses a computer-readable storage medium, which stores a computer program, wherein the computer program enables a computer to execute any one of the above-mentioned methods for judging abnormal cell capacity.
- the embodiments of the present application also disclose a computer program product, wherein when the computer program product runs on a computer, the computer is caused to execute some or all of the steps of the methods in the above method embodiments.
- the embodiment of the present application also discloses an application publishing platform, which is used for publishing a computer program product, wherein when the above-mentioned computer program product runs on a computer, the computer is made to execute parts of the methods in the above method embodiments or all steps.
- Read-Only Memory ROM
- Random Access Memory Random Access Memory
- PROM Programmable Read-only Memory
- EPROM Erasable Programmable Read Only Memory
- OTPROM One-time Programmable Read-Only Memory
- EEPROM Electronically Erasable Programmable Read-Only Memory
- CD-ROM Compact Disc
- CD-ROM Compact Disc
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- Chemical Kinetics & Catalysis (AREA)
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
一种电芯容量异常判断方法及装置、车辆、存储介质,所述方法包括:获取电池充电开始信号(101);获取充电开始时预设第一数量最低电压电芯串的串数编号(102);获取电池充电结束信号(103);获取充电结束时预设第二数量最高电压电芯串的串数编号(104);判断所述预设第一数量最低电压电芯串是否存在与所述预设第二数量最高电压电芯串的串数编号相同的电芯串(105),若相同则所述串数编号相同的电芯串存在电芯容量异常。该方法若识别到充电开始时的预设第一数量电压最低的电芯串与充电结束时预设第二数量电压最高的电芯串存在相同的电芯串,则说明所述电芯串容量异常。
Description
相关申请的交叉引用
本申请要求于2020年12月24日提交的申请号为2020115514357的中国申请的优先权,其在此处于所有目的通过引用将其全部内容并入本文。
本申请涉及动力电池技术领域,具体涉及一种电芯容量异常判断方法及装置、车辆、存储介质。
目前,动力锂离子电池作为移动能量载体,是新能源汽车的核心部件,并不断的在改变人们智能化出行生活方式中发挥着重要作用。但受限于锂离子电池自身特性、技术发展及工艺制程等限制,目前动力锂离子电池组在车辆使用过程中,仍经常会出现内部单颗电芯异常衰减的情况,如何快速准确识别到异常电芯,对改善维修效率,保障车辆安全和正常使用有重要作用。
发明内容
本申请实施例公开了一种电芯容量异常判断方法及装置、车辆、存储介质,能够解决或者部分解决现有技术中存在的电芯容量异常的问题。
本申请实施例第一方面公开了一种电芯容量异常判断方法,所述方法包括:
获取电池充电开始信号;
获取充电开始时预设第一数量最低电压电芯串的串数编号;所述预设第一数量最低电压电芯串为将所有电压电芯串按照电压大小排序,以电压最低的电芯串开始向高电压方向顺序选取预设第一数量个电芯串;
获取电池充电结束信号;
获取充电结束时预设第二数量最高电压电芯串的串数编号;所述预设第二数量最高电压电芯串为将所有电压电芯串按照电压大小排序,以电压最高 的电芯串开始向低电压方向顺序选取预设第二数量个电芯串;
判断所述预设第一数量最低电压电芯串是否存在与所述预设第二数量最高电压电芯串的串数编号相同的电芯串,若相同则所述串数编号相同的电芯串存在电芯容量异常。
本申请实施例第二方面公开了一种电芯容量异常判断装置,所述装置包括:
充电开始信号获取模块,用于获取电池充电开始信号;
第一串数编号获取模块,用于获取充电开始时预设第一数量最低电压电芯串的串数编号;
充电结束信号获取模块,用于获取电池充电结束信号;
第二串数编号获取模块,用于获取充电结束时预设第二数量最高电压电芯串的串数编号;
判断模块,用于判断所述预设第一数量最低电压电芯串是否存在与所述预设第二数量最高电压电芯串的串数编号相同的电芯串,若相同则所述串数编号相同的电芯串存在电芯容量异常。
本申请实施例第三方面公开一种车辆,所述车辆包括一个或多个处理器;其上存储有指令的一个或多个机器可读介质,当由所述一个或多个处理器执行时,使得所述车辆执行本申请实施例第一方面公开的电芯容量异常判断方法。
本申请实施例第四方面公开一种计算机可读存储介质,其存储计算机程序,其中,所述计算机程序使得计算机执行本申请实施例第一方面公开的电芯容量异常判断方法。
与现有技术相比,本申请实施例具有以下有益效果:本申请实施例提出的方案若识别到充电开始时的预设第一数量电压最低的电芯串与充电结束时预设第二数量电压最高的电芯串存在相同的电芯串,则说明所述电芯串容量异常。
为了更清楚地说明本申请实施例中的技术方案,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申请的一些实施例,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他的附图。
图1是本申请实施例公开的一种电芯容量异常判断方法的流程示意图;
图2是本申请实施例公开的另一种电芯容量异常判断方法的流程示意图;
图3是本申请实施例公开的一种电芯容量异常判断装置的模块示意图。
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
需要说明的是,本申请的说明书和权利要求书中的术语“第一”、“第二”、“第三”和“第四”等是用于区别不同的对象,而不是用于描述特定顺序。本申请实施例的术语“包括”和“具有”以及他们的任何变形,意图在于覆盖不排他的包含,例如,包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
本申请实施例提供了一种电芯容量异常判断方法,主要根据动力电池充电开始时具有最低电压的电芯串是否与充电结束时具有最高电压的电芯串为同一电芯串,若是则说明电芯容量异常。以下结合具体实施例进行说明。
如图1所示,为本申请实施例的一种电芯容量异常判断方法的一实施例的流程示意图,包括:
101、获取电池充电开始信号;
通常获取电池充电开始信号即就是意味着电池即将或者刚好进入充电状态,具体地,例如可以通过充电状态参数的数值或者报文数值来确定,例如所述数值达到设定数值即为电池充电开始,此时获得的充电状态参数的数值 或者报文数值信号可以视为电池充电开始信号;
102、获取充电开始时预设第一数量最低电压电芯串的串数编号;
所述动力电池包括若干电芯串,各个电芯串具有串数编号,当开始充电时获取各个电芯串的电压值,所述预设第一数量最低电压电芯串为将所有电压电芯串按照电压大小排序,以电压最低的电芯串开始向高电压方向顺序选取预设第一数量个电芯串;
所述预设第一数量最低电压电芯串的串数编号可以是只有一个,即就是最低电压对应的那一个;在一些实施例中,也可以是多个,例如是3个,那么此时则获取电压最低的3个电芯串的串数编号;
103、获取电池充电结束信号;
通常充电至设定的SOC值时充电结束,若没有设置充电截止的SOC值则通常充电至默认值结束;
104、获取充电结束时预设第二数量最高电压电芯串的串数编号;
当充电结束时获取各个电芯串的电压值,所述预设第二数量最高电压电芯串为将所有电压电芯串按照电压大小排序,以电压最高的电芯串开始向低电压方向顺序选取预设第二数量个电芯串;
所述预设第二数量最高电压电芯串的串数编号可以是只有一个,即就是最高电压对应的那一个;在一些实施例中,也可以是多个,例如是3个,那么此时则获取电压最高的3个电芯串的串数编号;
105、判断所述预设第一数量最低电压电芯串是否存在与所述预设第二数量最高电压电芯串的串数编号相同的电芯串,若相同则所述串数编号相同的电芯串存在电芯容量异常;
106、当存在电芯串电芯容量异常时,发送告警信息。
由于在充电过程中,各个电芯串的电压增长幅度基本相同或者近似,所以充电开始时的电压最低的电芯串通常不可能在充电结束时成为电压最高的电芯串,基于此,本实施例提出的方法若识别到充电开始时的电压最低的电芯串与充电结束时电压最高的电芯串为同一电芯串,则说明所述电芯串容量异常。进一步地,若此串电芯为单颗电芯,则说明此单颗电芯容量异常衰减 或者存在其他问题;若此串电芯包含多颗电芯,则说明其中至少一个电芯容量异常衰减或者存在其他问题。
进一步地,本申请实施例还可以在充电开始时获得多个(至少2个)最低电压电芯串的串数编号,充电结束时获得多个(至少2个)最高电压电芯串的串数编号,再判断其中是否存在串数编号相同的电芯串,这种方式可以同时检测多个电芯串,当多个电芯串同时出现异常时也能检测到,而且还可以防止多个电芯串异常情况近似而造成漏检的情况,所述漏检的情况例如可以是:多个电芯串异常情况非常近似,其中在充电开始时检测电芯串A为最低电压电芯串,但是在充电结束时与电芯串A非常近似的电芯串B被检测为最高电压电芯串,那么此时若只根据最低与最高的一个电芯串判断则会发生漏检。
本申请各个实施例中的电芯串不仅包括每个电芯串包含2个或2个以上电芯的情形,还包括每个电芯串只包含一个电芯的情形。
所述发送告警信息的方式可以有多种,例如可以由大数据云端或者本地BMS进行以上的判断并发送告警信息,所述告警信息可以向后台服务人员发送,以便于分析故障原因,及时确定问题并对车辆进行维修,改善由于电池容量异常减少而带来的车辆续航与性能衰减的问题,提高了用户体验。
进一步地,在进行获取电池充电开始信号之后,还可以包括电池状态判断的步骤,如图2所示,为本申请实施例的一种电芯容量异常判断方法的另一实施例的流程示意图,包括:
201、获取电池充电开始信号;
202、获取电池系统故障状态信息;
在一些具体实施例中,例如可以通过BMS对系统进行故障诊断,获取电池系统的故障状态,产生故障状态的原因例如可以包括但不限于:单体电压过高、单体电压过低、温度过高、继电器粘连等;当电池系统不存在故障时,将会允许进行后续的动作;当电池系统存在故障时,将会结束流程;
203、获取信号报文有效性状态;
为了排除通讯故障的影响,在一些实施例中,可以判断信号报文有效性状态,具体地,例如可以通过读报文的有效性校验位进行判断,当所述校验 位为预设数值时即为有效,将会允许进行后续的动作;当所述校验位不是预设数值时即为无效,将会结束流程;
204、当所述电池系统故障状态信息为无故障且所述信号报文有效性状态为有效时,获取充电开始时预设第一数量最低电压电芯串的串数编号;
205、获取电池充电结束信号;
206、获取充电结束时预设第二数量最高电压电芯串的串数编号;
207、判断所述预设第一数量最低电压电芯串是否存在与所述预设第二数量最高电压电芯串的串数编号相同的电芯串,若相同则所述串数编号相同的电芯串存在电芯容量异常;
208、当存在电芯串电芯容量异常时,发送告警信息。
在上述一种电芯容量异常判断方法的另一实施例中,通过先判断电池系统故障状态信息以及信号报文有效性状态的方式,排除了可能会影响判断电芯容量异常的情况,使得后续进行电芯容量异常判断时更准确。以上判断电池系统故障状态信息以及信号报文有效性状态的方式可以理解为先判断电池是否处于正常充电状态,当电池处于正常充电状态时再去获取电池充电开始信号。其他的判断电池是否处于正常充电状态的方式例如还可以是判断电池系统故障状态信息或判断信号报文有效性状态的方式。
本申请实施例还提供了一种电芯容量异常判断装置,如图3所示,为本申请提出的一种电芯容量异常判断装置的模块示意图,包括:
充电开始信号获取模块301,用于获取电池充电开始信号;
电池系统信息获取模块302,用于获取电池系统故障状态信息;
信号报文有效性获取模块303,用于获取信号报文有效性状态;
第一串数编号获取模块304,用于当所述电池系统故障状态信息为无故障且所述信号报文有效性状态为有效时,获取充电开始时预设第一数量最低电压电芯串的串数编号;
充电结束信号获取模块305,用于获取电池充电结束信号;
第二串数编号获取模块306,用于获取充电结束时预设第二数量最高电压电芯串的串数编号;
判断模块307,用于判断所述预设第一数量最低电压电芯串是否存在与所述预设第二数量最高电压电芯串的串数编号相同的电芯串,若相同则所述串数编号相同的电芯串存在电芯容量异常;
告警模块308,用于当存在电芯串电芯容量异常时,发送告警信息。
本申请实施例还公开一种车辆,该车辆包括所述一种电芯容量异常判断装置。
本申请实施例还公开一种计算机可读存储介质,其存储计算机程序,其中,该计算机程序使得计算机执行上述任意一种电芯容量异常判断方法。
本申请实施例还公开一种计算机程序产品,其中,当计算机程序产品在计算机上运行时,使得计算机执行如以上各方法实施例中的方法的部分或全部步骤。
本申请实施例还公开一种应用发布平台,该应用发布平台用于发布计算机程序产品,其中,当上述计算机程序产品在计算机上运行时,使得计算机执行如以上各方法实施例中的方法的部分或全部步骤。
本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步骤是可以通过程序来指令相关的硬件来完成,该程序可以存储于一计算机可读存储介质中,存储介质包括只读存储器(Read-Only Memory,ROM)、随机存储器(Random Access Memory,RAM)、可编程只读存储器(Programmable Read-only Memory,PROM)、可擦除可编程只读存储器(Erasable Programmable Read Only Memory,EPROM)、一次可编程只读存储器(One-time Programmable Read-Only Memory,OTPROM)、电子抹除式可复写只读存储器(Electrically-Erasable Programmable Read-Only Memory,EEPROM)、只读光盘(Compact Disc Read-Only Memory,CD-ROM)或其他光盘存储器、磁盘存储器、磁带存储器、或者能够用于携带或存储数据的计算机可读的任何其他介质。
以上对本申请实施例公开的一种电芯容量异常判断方法及装置、存储介质进行了详细介绍,本文中应用了具体个例对本申请的原理及实施方式进行了阐述,以上实施例的说明只是用于帮助理解本申请的方法及其核心思想; 同时,对于本领域的一般技术人员,依据本申请的思想,在具体实施方式及应用范围上均会有改变之处,综上所述,本说明书内容不应理解为对本申请的限制。
Claims (10)
- 一种电芯容量异常判断方法,其特征在于,包括:获取电池充电开始信号;获取充电开始时预设第一数量最低电压电芯串的串数编号;所述预设第一数量最低电压电芯串为将所有电压电芯串按照电压大小排序,以电压最低的电芯串开始向高电压方向顺序选取预设第一数量个电芯串;获取电池充电结束信号;获取充电结束时预设第二数量最高电压电芯串的串数编号;所述预设第二数量最高电压电芯串为将所有电压电芯串按照电压大小排序,以电压最高的电芯串开始向低电压方向顺序选取预设第二数量个电芯串;判断所述预设第一数量最低电压电芯串是否存在与所述预设第二数量最高电压电芯串的串数编号相同的电芯串,若相同则所述串数编号相同的电芯串存在电芯容量异常。
- 如权利要求1所述的电芯容量异常判断方法,其特征在于,还包括:判断所述电池是否处于正常充电状态;所述获取充电开始时预设第一数量最低电压电芯串的串数编号的步骤具体包括:若所述电池处于正常充电状态,则获取充电开始时预设第一数量最低电压电芯串的串数编号。
- 如权利要求2所述的电芯容量异常判断方法,其特征在于:所述判断所述电池是否处于正常充电状态的步骤具体包括:获取电池系统故障状态信息,根据所述电池系统故障状态信息判断所述电池是否处于正常充电状态;所述若所述电池处于正常充电状态,则获取充电开始时预设第一数量最低电压电芯串的串数编号的步骤具体包括:若所述电池未处于故障状态,则获取充电开始时预设第一数量最低电压电芯串的串数编号。
- 如权利要求2所述的电芯容量异常判断方法,其特征在于:所述判断所述电池是否处于正常充电状态的步骤具体包括:获取信号报文有效性状态,根据所述信号报文有效性状态判断所述电池是否处于正常充电状态;所述若所述电池处于正常充电状态,则获取充电开始时预设第一数量最低电压电芯串的串数编号的步骤具体包括:若所述信号报文有效性状态为有效,则获取充电开始时预设第一数量最低电压电芯串的串数编号。
- 如权利要求2所述的电芯容量异常判断方法,其特征在于:所述判断所述电池是否处于正常充电状态的步骤具体包括:获取电池系统故障状态信息与信号报文有效性状态,根据所述电池系统故障状态信息与信号报文有效性状态判断所述电池是否处于正常充电状态;所述若所述电池处于正常充电状态,则获取充电开始时预设第一数量最低电压电芯串的串数编号的步骤具体包括:若所述电池未处于故障状态且所述信号报文有效性状态为有效,则获取充电开始时预设第一数量最低电压电芯串的串数编号。
- 如权利要求1所述的电芯容量异常判断方法,其特征在于,还包括:当存在电芯串电芯容量异常时,发送告警信息。
- 一种电芯容量异常判断装置,其特征在于,包括:充电开始信号获取模块,用于获取电池充电开始信号;第一串数编号获取模块,用于获取充电开始时预设第一数量最低电压电芯串的串数编号;充电结束信号获取模块,用于获取电池充电结束信号;第二串数编号获取模块,用于获取充电结束时预设第二数量最高电压电芯串的串数编号;判断模块,用于判断所述预设第一数量最低电压电芯串是否存在与所述预设第二数量最高电压电芯串的串数编号相同的电芯串,若相同则所述串数编号相同的电芯串存在电芯容量异常。
- 如权利要求7所述的电芯容量异常判断装置,其特征在于,还包括:告警装置模块,用于当存在电芯串电芯容量异常时,发送告警信息。
- 一种车辆,其特征在于,包括:一个或多个处理器;和其上存储有指令的一个或多个机器可读介质,当由所述一个或多个处理器执行时,使得所述车辆执行如权利要求1-6任一项所述的电芯容量异常判断方法。
- 一种计算机可读存储介质,其特征在于,所述计算机可读存储介质存储计算机程序,其中,所述计算机程序使得计算机执行权利要求1-6任一项所述的电芯容量异常判断方法。
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