CN111521945B - Battery health state detection method and device, electronic equipment and storage medium - Google Patents
Battery health state detection method and device, electronic equipment and storage medium Download PDFInfo
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- CN111521945B CN111521945B CN202010374471.4A CN202010374471A CN111521945B CN 111521945 B CN111521945 B CN 111521945B CN 202010374471 A CN202010374471 A CN 202010374471A CN 111521945 B CN111521945 B CN 111521945B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/392—Determining battery ageing or deterioration, e.g. state of health
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
- G01R31/3842—Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/389—Measuring internal impedance, internal conductance or related variables
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Abstract
The embodiment of the application provides a battery health state detection method and device, electronic equipment and a storage medium. The specific implementation scheme is as follows: detecting reference parameter values of the reference battery under different reference residual capacities in the discharging process of the reference battery to obtain a reference relation between each reference residual capacity and each reference parameter value of the reference battery; detecting a detection parameter value of the battery to be detected in the using process of the battery to be detected; determining a battery performance index according to the reference relation and the detection parameter value of the battery to be detected; and determining the health state of the battery to be tested according to the battery performance index. The embodiment of the application can determine the health state of the battery of the equipment, so that the user is reminded of replacing the battery in time when the performance of the battery is reduced to a certain degree, the problems that the performance of the whole equipment is reduced, the charging time is prolonged, the service life after charging is shortened and the like due to the reduction of the performance of the battery can be avoided, and the user experience is good.
Description
Technical Field
The present disclosure relates to the field of battery technologies, and in particular, to a method and an apparatus for detecting a state of health of a battery, an electronic device, and a storage medium.
Background
As the battery is used for a longer period of time and the number of times, the battery performance is degraded, such as the battery is aged or deteriorated. The performance of the battery is reduced, so that the performance of the whole equipment using the battery is reduced, the charging time of the equipment is prolonged, the service life of the equipment after charging is shortened, and the like, so that the user experience is influenced.
Disclosure of Invention
The embodiment of the application provides a battery health state detection method, a battery health state detection device, electronic equipment and a storage medium, and aims to solve the problems in the related art, and the technical scheme is as follows:
in a first aspect, an embodiment of the present application provides a method for detecting a state of health of a battery, where the method includes:
detecting reference parameter values of the reference battery under different reference residual capacities in the discharging process of the reference battery to obtain a reference relation between each reference residual capacity and each reference parameter value of the reference battery;
detecting a detection parameter value of the battery to be detected in the using process of the battery to be detected;
determining a battery performance index according to the reference relation and the detection parameter value of the battery to be detected;
and determining the health state of the battery to be tested according to the battery performance index.
In a second aspect, an embodiment of the present application provides a battery state of health detection apparatus, including:
the first detection unit is used for detecting reference parameter values of the reference battery under different reference residual capacities in the discharging process of the reference battery so as to obtain a reference relation between each reference residual capacity and each reference parameter value of the reference battery;
the second detection unit is used for detecting the detection parameter value of the battery to be detected in the using process of the battery to be detected;
the first determining unit is used for determining the performance index of the battery according to the reference relation and the detection parameter value of the battery to be detected;
and the second determination unit is used for determining the health state of the battery to be tested according to the battery performance index.
In a third aspect, an embodiment of the present application provides an electronic device, including:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to cause the at least one processor to perform a method provided by any one of the embodiments of the present application.
In a fourth aspect, embodiments of the present application provide a computer-readable storage medium storing computer instructions that, when executed on a computer, perform a method in any one of the above-described aspects.
The advantages or beneficial effects in the above technical solution at least include: the health state of the battery of the equipment can be determined, so that a user is reminded of replacing the battery in time when the performance of the battery is reduced to a certain degree, the problems that the performance of the whole equipment is reduced, the charging time is prolonged, the service life after charging is shortened and the like caused by the reduction of the performance of the battery can be avoided, and the user experience is good. And moreover, the battery is replaced in time when the performance of the battery is reduced, so that the performance of the whole equipment can be improved, and the service life of the equipment can be prolonged.
The foregoing summary is provided for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present application will be readily apparent by reference to the drawings and following detailed description.
Drawings
In the drawings, like reference numerals refer to the same or similar parts or elements throughout the several views unless otherwise specified. The figures are not necessarily to scale. It is appreciated that these drawings depict only some embodiments in accordance with the disclosure and are therefore not to be considered limiting of its scope.
FIG. 1 is a flow chart of a battery state of health detection method according to an embodiment of the present application;
FIG. 2 is a flow chart of a battery state of health detection method according to another embodiment of the present application;
FIG. 3 is a data flow diagram of a battery state of health detection method according to another embodiment of the present application;
FIG. 4 is a flow chart of a battery state of health detection method according to another embodiment of the present application;
FIG. 5 is a data flow diagram of a battery state of health detection method according to another embodiment of the present application;
FIG. 6 is a flow chart of a battery state of health detection method according to another embodiment of the present application;
FIG. 7 is a data flow diagram of a battery state of health detection method according to another embodiment of the present application;
FIG. 8 is a schematic diagram of a battery state of health detection apparatus according to an embodiment of the present application;
FIG. 9 is a schematic diagram of a battery state of health detection apparatus according to another embodiment of the present application;
fig. 10 is a block diagram of an electronic device for implementing a battery state of health detection method according to an embodiment of the present application.
Detailed Description
In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present application. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.
Fig. 1 is a flowchart of a battery state of health detection method according to an embodiment of the present application. As shown in fig. 1, the battery state of health detection method may include:
step S110, detecting reference parameter values of the reference battery under different reference residual capacities in the discharging process of the reference battery to obtain a reference relation between each reference residual capacity and each reference parameter value of the reference battery;
step S120, detecting a detection parameter value of the battery to be detected in the using process of the battery to be detected;
step S130, determining a battery performance index according to the reference relation and the detection parameter value of the battery to be detected;
and step S140, determining the health state of the battery to be tested according to the battery performance index.
The battery capacity detection system of the existing equipment can only calibrate and display the residual capacity of the battery generally. One way may be to display the remaining power on the device body. In another mode, the remaining power may be displayed on a mobile phone APP (Application program) of the user. Taking the vacuum cleaner as an example, the remaining battery capacity can be prompted through a display lamp or voice. For example, when the remaining battery power is greater than or equal to the set power threshold, the display light is not lit or is in a color (e.g., green). Otherwise, the display light is lit or in another color (e.g., red). The battery power detection system of the existing dust collector can only be used for calibrating the remaining power of the battery, can not be used for detecting the health state of the battery, and can not remind a user to replace the battery with seriously reduced performance.
In view of this, an embodiment of the present application provides a method for detecting a state of health of a battery, which compares a detection parameter value of a battery to be detected with a reference parameter value of a reference battery, and determines a performance index of the battery according to a comparison result, thereby determining the state of health of the battery to be detected.
In step S110, the battery in a healthy state may be used as a reference battery. The reference battery and the battery to be tested may be the same type of battery. The remaining capacity of the reference battery is referred to as a reference remaining capacity. The reference battery is gradually discharged, the reference residual capacity gradually reduced in the discharging process of the reference battery is recorded, and the reference parameter values under different reference residual capacities are detected. The reference parameter value may include an internal resistance value or a discharge time. For example, the internal resistance value is detected every 10% of the electricity consumed by the reference battery. Specifically, the first detection may be performed when the reference remaining capacity is 100%, the second detection may be performed when the reference remaining capacity is 90%, … …, and so on, until the discharge of the reference battery is finished. And obtaining the reference relation between each reference residual capacity of the reference battery and each reference parameter value according to each reference parameter value corresponding to each reference residual capacity. For example, the reference relationship may be a fitted curve of the reference remaining capacity and the corresponding reference parameter value.
In step S120, a battery under test in the device is detected. The device takes a dust collector as an example, and detects the detection parameter value of the battery to be detected in the use process of the battery after the dust collector is started. In one embodiment, the sensed parameter value and the reference parameter value may both be internal resistance values. In another embodiment, in the case that the reference parameter value is a discharge time, the detection parameter value may be a remaining capacity and a corresponding elapsed time of the battery to be tested during the use process.
The reference relationship obtained in step S110 represents a corresponding relationship between each reference remaining capacity and each reference parameter value in the discharging process of the battery in the healthy state. In step S130, the detected parameter value of the battery under test detected in step S120 is compared with the reference parameter value in the reference relationship, and the battery performance index is determined according to the reference relationship and the detected parameter value of the battery under test. The battery performance index represents the performance gap between the battery under test and the reference battery. Therefore, in step S140, the state of health of the battery under test can be determined according to the battery performance index. If the performance gap between the battery to be tested and the reference battery is large, the battery to be tested can be determined to be in an unhealthy state.
The embodiment of the application can determine the health state of the battery of the equipment, so that the user is reminded of replacing the battery in time when the performance of the battery is reduced to a certain degree, the problems that the performance of the whole equipment is reduced, the charging time is prolonged, the service life after charging is shortened and the like due to the reduction of the performance of the battery can be avoided, and the user experience is good. And moreover, the battery is replaced in time when the performance of the battery is reduced, so that the performance of the whole equipment can be improved, and the service life of the equipment can be prolonged.
Fig. 2 is a flowchart of a battery state of health detection method according to another embodiment of the present application. As shown in FIG. 2, in one embodiment, the reference parameter value and the sensed parameter value each include an internal resistance value; step S130 in fig. 1, determining a battery performance index according to the reference relationship and the detection parameter value of the battery to be tested, including:
step S210, determining corresponding reference residual capacity from a reference relation according to the internal resistance value of the battery to be tested;
step S220, using the corresponding reference remaining power as a battery performance index.
In this embodiment, the reference parameter value is a battery internal resistance value at different reference remaining capacities during discharge of the reference battery. The detection parameter value is an internal resistance value detected in the using process of the battery to be detected. In one example, the internal resistance value of the battery to be tested when it is fully charged and is beginning to be used may be detected. For example, the internal resistance value is 0.50 ohm when it is detected that the reference remaining capacity of the reference battery is 100%, and the internal resistance value is 0.52 ohm when the reference remaining capacity is 90% in step S110. The internal resistance value when the battery to be tested is detected to be fully charged and starts to be used is 0.52 ohm in step S120. Then, in step S210, according to the internal resistance value of the battery to be tested being 0.52 ohm, the corresponding reference remaining capacity is found to be 90% from the reference relationship. As can be seen from the above data, the internal resistance value when the battery to be measured is fully charged and starts to be used is equal to the internal resistance value when the reference remaining capacity of the reference battery is 90%. Then the corresponding reference remaining capacity 90% is used as the battery performance index in step S220. The battery performance index may reflect a performance gap between the battery under test and the reference battery. The larger the performance difference between the two is, namely the smaller the performance index of the battery is, the worse the performance of the battery to be tested is.
In the embodiment of the application, according to the corresponding relation between the residual capacity and the internal resistance value of the battery, the detection parameter value of the battery to be detected is compared with the reference parameter value of the reference battery, and the health state of the battery to be detected is determined according to the comparison result. As the most basic performance index of the battery, the internal resistance value of the battery has very important influence on the performance of the battery, so that the health state of the battery can be accurately detected by taking the internal resistance value as a reference parameter value and a detection parameter value.
Fig. 3 is a data flow diagram of a battery state of health detection method according to another embodiment of the present application. As shown in fig. 3, the reference cell is tested in step 3.1. The reference battery may be a battery that is fully charged in a healthy state. The internal resistance of the reference cell was measured and recorded as R0. Then, the battery fully charged in the batch is discharged step by step, the internal resistance is recorded once when 10% of electric quantity is consumed, an internal resistance value R1 corresponding to the condition that the reference residual electric quantity SOC (State of Charge, also called as the State of Charge) is 90%, an internal resistance value R2 corresponding to the condition that the reference residual electric quantity SOC is 80%, … … and so on are obtained, and finally, an internal resistance value R9 corresponding to the condition that the reference residual electric quantity SOC is 10% is obtained. In step 3.2, the data corresponding relation between the reference residual capacity SOC and the internal resistance value R of the reference battery is obtained. The SOC data and the internal resistance R data obtained in step 3.3 are fitted to form a curve.
In one embodiment, detecting a detection parameter value of a battery under test during use of the battery under test comprises:
responding to the full charge of the battery to be detected and starting to use, and detecting the open-circuit voltage, the current and the load voltage of the battery to be detected;
and calculating the internal resistance value of the battery to be tested according to the open-circuit voltage, the current and the load voltage.
In the embodiment of the application, the internal resistance value of the battery to be detected when the battery is fully charged and starts to be used is used as the detection parameter value, so that the health state of the battery can be accurately detected, and a user can be prompted to replace the battery in time according to the internal resistance value.
In the example of fig. 3, a battery being used while being installed in the cleaner is taken as a battery to be tested. In step 3.4, detecting the open-circuit voltage Vo, the current I in the battery and the load voltage Vi when the dust collector is fully started. Here, the open circuit voltage is a terminal voltage of the battery in an open circuit state and is referred to as an open circuit voltage. The open circuit voltage of a battery is equal to the difference between the positive electrode potential and the negative electrode potential of the battery when the battery is open circuited (i.e., when no current is passing through the two electrodes). During actual detection, the open circuit part is considered to be connected with a voltmeter, and the reading of the voltmeter is the open circuit voltage. The load voltage is the line-end voltage across the battery after the battery is connected to the load. In step 3.5, according to a formula of R '═ Vo-Vi)/I, the battery internal resistance value when the battery to be measured is fully charged and started is obtained, and the reference remaining capacity corresponding to R' is searched according to the fitting curve and recorded as SOC 1. For example, if the values of R 'and R1 are equal, the reference remaining capacity SOC corresponding to R' is recorded as SOC1 being 90% because of the internal resistance value R1 corresponding to the reference remaining capacity SOC being 90%. Therefore, SOC1 is 100% of the full charge of the battery at the current state of charge/state of health of the battery under test. The larger the value of SOC1, the smaller the performance difference between the battery under test and the reference battery, indicating the better the performance of the battery under test.
In step 3.6, a battery charge threshold is set, for example, the battery charge threshold may be set to 80%. If the SOC1 is larger than or equal to the threshold value, the battery to be tested is in a healthy state, and the user can continue to use the dust collector. Otherwise, the battery to be tested is unhealthy, and the user needs to be reminded to replace the battery. The ways to remind the user include, but are not limited to, APP display, display screen display, alarm light, alarm bell, etc.
Fig. 4 is a flowchart of a battery state of health detection method according to another embodiment of the present application. As shown in fig. 4, in one embodiment, the reference parameter value comprises a discharge time; detecting the parameter values including a first residual capacity and a second residual capacity of the battery to be detected and the time consumption from the first residual capacity to the second residual capacity; step S130 in fig. 1, determining a battery performance index according to the reference relationship and the detection parameter value of the battery to be tested, including:
step S310, according to the first residual capacity and the second residual capacity, respectively determining corresponding first discharging time and second discharging time from a reference relation;
step S320, calculating a discharge time difference according to the first discharge time and the second discharge time;
and step S330, determining the battery performance index according to the discharge time difference and the consumed time.
In this embodiment, the reference parameter value is a discharge time at different reference remaining capacities during discharge of the reference battery. For example, the discharge time when the reference remaining capacity of the reference battery is detected to be 90% is 50 minutes and the discharge time when the reference remaining capacity is 80% is 100 minutes in step S110.
The residual capacity of the battery to be tested in the using process is gradually reduced. The detection parameter values may include a first remaining capacity with a larger capacity, a second remaining capacity with a smaller capacity, and a time consumed from the first remaining capacity to the second remaining capacity. In step S120, a first remaining capacity may be detected at a first time point after the battery to be tested starts to be used. And detecting a second residual capacity at a second time point after a period of use, and recording the difference between the second time point and the first time point as time consumption. For example, when the device is powered on, the first time point is a time point, it is detected that the first remaining capacity of the battery to be tested is 90%, and after the device is used for 40 minutes (time consumption), it is detected that the capacity of the battery to be tested is reduced to 80% of the second remaining capacity.
In step S310, a first discharge time 50 minutes and a second discharge time 100 minutes are determined from the reference relationship according to the first remaining capacity 90% and the second remaining capacity 80%, respectively. In step S320, a discharge time difference of 50 minutes is calculated from the first discharge time and the second discharge time. In step S330, a battery performance index is determined from the discharge time difference of 50 minutes and the elapsed time of 40 minutes. For example, the ratio of 80% of the difference between the elapsed time and the discharge time can be used as a battery performance index. The battery performance index may reflect a performance gap between the battery under test and the reference battery. The larger the performance difference between the two is, namely the smaller the performance index of the battery is, the worse the performance of the battery to be tested is.
In the embodiment of the application, the detection parameter value of the battery to be detected is compared with the reference parameter value of the reference battery according to the corresponding relation between the residual capacity and the standby time of the battery, and the health state of the battery to be detected is determined according to the comparison result. The standby time is an important performance evaluation index of the battery, so that the health state of the battery can be accurately detected according to the corresponding relation between the residual capacity of the battery and the standby time, and a user can be further prompted to replace the battery in time according to the health state.
Fig. 5 is a data flow diagram of a battery state of health detection method according to another embodiment of the present application. As shown in fig. 5, the reference cell is tested in step 5.1. The reference battery may be a battery that is fully charged in a healthy state. And gradually discharging the battery with full charge, recording the discharge time every time when 10% of electricity is consumed, obtaining the corresponding discharge time t1 when the reference residual electricity SOC is 90%, obtaining the corresponding discharge time t2 and … … when the reference residual electricity SOC is 80%, and repeating the steps in the same way, and finally obtaining the corresponding discharge time t9 when the reference residual electricity SOC is 10%. In step 5.2, the data corresponding relation between the reference residual capacity SOC and the discharge time t of the reference battery is obtained. The SOC data obtained are fitted to the discharge time t data in step 5.3 to form a curve.
In the example of fig. 5, a battery being used while installed in the cleaner is taken as a battery to be tested. In step 5.4, a first remaining capacity SOC1 of the battery to be tested is detected when the vacuum cleaner is powered on. In step 5.5, a second remaining charge SOC2 of the battery under test after a period of use t' is recorded. And finding the first discharge time and the second discharge time corresponding to the SOC1 and the SOC2 according to the fitted curve, and respectively marking as t1 'and t 2'. A threshold is set that measures the state of health of the battery. If t '/(t 2 ' -t1 ') ≧ threshold at step 5.6, this indicates that the battery is healthy, the user can continue to use the cleaner. Otherwise, the battery of the dust collector is unhealthy, and the user needs to be reminded to replace the battery. The ways to remind the user include, but are not limited to, APP display, display screen display, alarm light, alarm bell, etc.
Fig. 6 is a flowchart of a battery state of health detection method according to another embodiment of the present application. As shown in fig. 6, in one embodiment, the reference parameter value comprises a discharge time; detecting the parameter values including a first residual capacity and a second residual capacity of the battery to be detected and the time consumption from the first residual capacity to the second residual capacity; step S130 in fig. 1, determining a battery performance index according to the reference relationship and the detection parameter value of the battery to be tested, including:
step S410, determining corresponding first discharging time from the reference relation according to the first residual electric quantity;
step S420, calculating second discharge time according to the first discharge time and the consumed time;
step S430, determining corresponding reference residual capacity from the reference relation according to the second discharging time;
step S440, determining a battery performance index according to the reference remaining power and the second remaining power.
In this embodiment, the reference parameter value is a discharge time at different reference remaining capacities during discharge of the reference battery. For example, the discharge time when the reference remaining capacity of the reference battery is detected to be 90% is 50 minutes and the discharge time when the reference remaining capacity is 80% is 100 minutes in step S110.
The detection parameter values may include a first remaining capacity with a larger capacity, a second remaining capacity with a smaller capacity, and a time consumed from the first remaining capacity to the second remaining capacity. In step S120, a first remaining capacity may be detected at a first time point after the battery to be tested starts to be used. And detecting a second residual capacity at a second time point after a period of use, and recording the difference between the second time point and the first time point as time consumption. For example, when the device is powered on, the first time point is a time point, it is detected that the first remaining capacity of the battery to be tested is 90%, and after the device is used for 50 minutes (time consumption), it is detected that the capacity of the battery to be tested is reduced to 75% of the second remaining capacity.
In step S410, the corresponding first discharge time 50 minutes is determined from the reference relationship according to the first remaining capacity 90%. In step S420, the second discharge time is calculated to be 100 minutes from the first discharge time of 50 minutes and the elapsed time of 50 minutes. In step S430, it is determined from the reference relationship that the corresponding reference remaining capacity is 80% according to the second discharge time 100 minutes. In step S440, a battery performance index is determined according to the reference remaining capacity of 80% and the second remaining capacity of 75%. For example, 93.75% of the ratio of the second remaining capacity to the reference remaining capacity may be used as the battery performance index. The battery performance index may reflect a performance gap between the battery under test and the reference battery. The larger the performance difference between the two is, namely the smaller the performance index of the battery is, the worse the performance of the battery to be tested is.
In the embodiment of the application, the detection parameter value of the battery to be detected is compared with the reference parameter value of the reference battery according to the corresponding relation between the residual capacity and the standby time of the battery, and the health state of the battery to be detected is determined according to the comparison result. The standby time is an important performance evaluation index of the battery, so that the health state of the battery can be accurately detected according to the corresponding relation between the residual capacity of the battery and the standby time, and a user can be further prompted to replace the battery in time according to the health state.
Fig. 7 is a data flow diagram of a battery state of health detection method according to another embodiment of the present application. As shown in fig. 7, the reference cell is tested in step 7.1. The reference battery may be a battery that is fully charged in a healthy state. And gradually discharging the battery with full charge, recording the discharge time every time when 10% of electricity is consumed, obtaining the corresponding discharge time t1 when the reference residual electricity SOC is 90%, obtaining the corresponding discharge time t2 and … … when the reference residual electricity SOC is 80%, and repeating the steps in the same way, and finally obtaining the corresponding discharge time t9 when the reference residual electricity SOC is 10%. In step 7.2, the data corresponding relation between the reference remaining capacity SOC and the discharge time t of the reference battery is obtained. The SOC data obtained are fitted to the discharge time t data in step 7.3 to form a curve.
In the example of fig. 7, a battery being used while being installed in the cleaner is taken as a battery to be tested. In step 7.4, a first remaining capacity SOC1 of the battery to be tested is detected when the cleaner is powered on. In step 7.5, a second remaining charge SOC2 of the battery under test after a period of use t' is recorded. And finding a first discharge time corresponding to the SOC1 according to the fitted curve, and marking the first discharge time as t 1'. And then, the reference residual capacity SOC2 ' corresponding to the t ' + t1 ' is searched according to the fitting curve. A threshold is set that measures the state of health of the battery. In step 7.6, if SOC2/SOC 2' ≧ threshold, this indicates that the battery is healthy, and the user can continue to use the vacuum cleaner. Otherwise, the battery of the dust collector is unhealthy, and the user needs to be reminded to replace the battery. The ways to remind the user include, but are not limited to, APP display, display screen display, alarm light, alarm bell, etc.
Referring to the examples of fig. 3, 5, and 7, in one embodiment, determining the state of health of the battery under test based on the battery performance indicator includes:
and under the condition that the performance index of the battery is smaller than a preset threshold value, determining that the battery to be tested is in an unhealthy state.
The threshold may be sized according to the type of battery, the environment of use, etc. Typically, the threshold may be set at 75% to 85%. For example, the threshold may be set to 80%.
In the embodiment of the application, through reasonable setting of the threshold value, whether the battery to be detected is in an unhealthy state or not can be accurately judged, so that a user is reminded to replace the battery in time when the performance of the battery is reduced to a certain degree.
In one embodiment, the method further comprises:
and sending out prompt information for replacing the battery under the condition that the battery to be tested is determined to be in an unhealthy state.
Referring to the examples of fig. 3, 5 and 7, ways to alert the user include, but are not limited to, APP display, display screen display, alarm light, alarm bell, etc.
In the embodiment of the application, the user is reminded of replacing the battery in time when the performance of the battery is reduced to a certain degree, the problems that the performance of the whole equipment is reduced, the charging time is prolonged, the service life after charging is shortened and the like due to the reduction of the performance of the battery can be avoided, and the user experience is good.
Fig. 8 is a schematic diagram of a battery state of health detection apparatus according to an embodiment of the present application. As shown in fig. 8, the battery state of health detecting means may include:
a first detecting unit 100, configured to detect reference parameter values of a reference battery at different reference remaining capacities during a discharging process of the reference battery, so as to obtain a reference relationship between each reference remaining capacity of the reference battery and each reference parameter value;
the second detection unit 200 is used for detecting the detection parameter value of the battery to be detected in the using process of the battery to be detected;
the first determining unit 300 is configured to determine a battery performance index according to the reference relationship and a detection parameter value of the battery to be detected;
and a second determining unit 400, configured to determine a state of health of the battery to be tested according to the battery performance index.
In one embodiment, the reference parameter value and the sensed parameter value each include an internal resistance value; the first determination unit 300 is configured to:
determining corresponding reference residual capacity from the reference relation according to the internal resistance value of the battery to be tested;
and taking the corresponding reference residual capacity as a battery performance index.
In one embodiment, the second detection unit 200 is configured to:
responding to the full charge of the battery to be detected and starting to use, and detecting the open-circuit voltage, the current and the load voltage of the battery to be detected;
and calculating the internal resistance value of the battery to be tested according to the open-circuit voltage, the current and the load voltage.
In one embodiment, the reference parameter value comprises a discharge time; detecting the parameter values including a first residual capacity and a second residual capacity of the battery to be detected and the time consumption from the first residual capacity to the second residual capacity; the first determination unit 300 is configured to:
according to the first residual electric quantity and the second residual electric quantity, respectively determining corresponding first discharging time and second discharging time from the reference relation;
calculating a discharge time difference according to the first discharge time and the second discharge time;
and determining the performance index of the battery according to the discharge time difference and the consumed time.
In one embodiment, the reference parameter value comprises a discharge time; detecting the parameter values including a first residual capacity and a second residual capacity of the battery to be detected and the time consumption from the first residual capacity to the second residual capacity; the first determination unit 300 is configured to:
determining corresponding first discharging time from the reference relation according to the first residual electric quantity;
calculating a second discharge time according to the first discharge time and the consumed time;
determining corresponding reference residual capacity from the reference relation according to the second discharge time;
and determining the battery performance index according to the reference residual capacity and the second residual capacity.
In one embodiment, the second determination unit 400 is configured to:
and under the condition that the performance index of the battery is smaller than a preset threshold value, determining that the battery to be tested is in an unhealthy state.
Fig. 9 is a schematic diagram of a battery state of health detection apparatus according to another embodiment of the present application. As shown in fig. 9, in an embodiment, the apparatus further includes a prompting unit 500, where the prompting unit 500 is configured to:
and sending out prompt information for replacing the battery under the condition that the battery to be tested is determined to be in an unhealthy state.
The functions of each unit in the battery health status detection apparatus according to the embodiment of the present application may refer to the corresponding description in the foregoing method, and are not described herein again.
Fig. 10 is a block diagram of an electronic device for implementing a battery state of health detection method according to an embodiment of the present application. As shown in fig. 10, the control apparatus includes: a memory 910 and a processor 920, the memory 910 having stored therein instructions executable on the processor 920. The processor 920, when executing the instructions, implements the battery state of health detection method in the embodiments described above. The number of the memory 910 and the processor 920 may be one or more. The control device is intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The control device may also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be examples only, and are not meant to limit implementations of the present application that are described and/or claimed herein.
The control device may further include a communication interface 930 for communicating with an external device for data interactive transmission. The various devices are interconnected using different buses and may be mounted on a common motherboard or in other manners as desired. The processor 920 may process instructions for execution within the control device, including instructions stored in or on a memory to display graphical information of a GUI on an external input/output apparatus (such as a display device coupled to an interface). In other embodiments, multiple processors and/or multiple buses may be used, along with multiple memories and multiple memories, as desired. Also, multiple control devices may be connected, with each device providing portions of the necessary operations (e.g., as a server array, a group of blade servers, or a multi-processor system). The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 10, but this is not intended to represent only one bus or type of bus.
Optionally, in an implementation, if the memory 910, the processor 920 and the communication interface 930 are integrated on a chip, the memory 910, the processor 920 and the communication interface 930 may complete communication with each other through an internal interface.
It should be understood that the processor may be a Central Processing Unit (CPU), other general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component, etc. A general purpose processor may be a microprocessor or any conventional processor or the like. It is noted that the processor may be an advanced reduced instruction set machine (ARM) architecture supported processor.
Embodiments of the present application provide a computer-readable storage medium (such as the above-mentioned memory 910) storing computer instructions, which when executed by a processor implement the methods provided in embodiments of the present application.
Alternatively, the memory 910 may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function; the storage data area may store data created according to use of the battery state of health detection device, and the like. Further, the memory 910 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, memory 910 may optionally include memory located remotely from processor 920, which may be connected to the battery state of health detection device via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more (two or more) executable instructions for implementing specific logical functions or steps in the process. And the scope of the preferred embodiments of the present application includes other implementations in which functions may be performed out of the order shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions.
It should be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. All or part of the steps of the method of the above embodiments may be implemented by hardware that is configured to be instructed to perform the relevant steps by a program, which may be stored in a computer-readable storage medium, and which, when executed, includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present application may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module may also be stored in a computer-readable storage medium if it is implemented in the form of a software functional module and sold or used as a separate product. The storage medium may be a read-only memory, a magnetic or optical disk, or the like.
While the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (14)
1. A battery state of health detection method, comprising:
detecting reference parameter values of the reference battery under different reference residual capacities in the discharging process of the reference battery to obtain a reference relation between each reference residual capacity and each reference parameter value of the reference battery;
detecting a detection parameter value of a battery to be detected in the using process of the battery to be detected;
determining a battery performance index according to the reference relation and the detection parameter value of the battery to be detected;
determining the state of health of the battery to be tested according to the battery performance index,
wherein the reference parameter value comprises a discharge time; the detection parameter values comprise a first residual capacity, a second residual capacity and time consumption from the first residual capacity to the second residual capacity of the battery to be detected; determining a battery performance index according to the reference relation and the detection parameter value of the battery to be detected, and the method comprises the following steps:
according to the first residual electric quantity and the second residual electric quantity, respectively determining corresponding first discharging time and second discharging time from the reference relation;
calculating a discharge time difference according to the first discharge time and the second discharge time;
and determining the battery performance index according to the discharge time difference and the consumed time.
2. The method of claim 1, wherein determining the state of health of the battery under test based on the battery performance indicator comprises:
and under the condition that the battery performance index is smaller than a preset threshold value, determining that the battery to be tested is in an unhealthy state.
3. The method of claim 1, further comprising:
and sending out prompt information for replacing the battery under the condition that the battery to be tested is determined to be in an unhealthy state.
4. A battery state of health detection method, comprising:
detecting reference parameter values of the reference battery under different reference residual capacities in the discharging process of the reference battery to obtain a reference relation between each reference residual capacity and each reference parameter value of the reference battery;
detecting a detection parameter value of a battery to be detected in the using process of the battery to be detected;
determining a battery performance index according to the reference relation and the detection parameter value of the battery to be detected;
determining the state of health of the battery to be tested according to the battery performance index,
wherein the reference parameter value comprises a discharge time; the detection parameter values comprise a first residual capacity, a second residual capacity and time consumption from the first residual capacity to the second residual capacity of the battery to be detected; determining a battery performance index according to the reference relation and the detection parameter value of the battery to be detected, and further comprising:
determining corresponding first discharging time from the reference relation according to the first residual electric quantity;
calculating a second discharge time according to the first discharge time and the consumed time;
determining corresponding reference residual electric quantity from the reference relation according to the second discharging time;
and determining the battery performance index according to the reference residual capacity and the second residual capacity.
5. The method of claim 4, wherein determining the state of health of the battery under test based on the battery performance indicator comprises:
and under the condition that the battery performance index is smaller than a preset threshold value, determining that the battery to be tested is in an unhealthy state.
6. The method of claim 4, further comprising:
and sending out prompt information for replacing the battery under the condition that the battery to be tested is determined to be in an unhealthy state.
7. A battery state of health detection apparatus, comprising:
the first detection unit is used for detecting reference parameter values of the reference battery under different reference residual capacities in the discharging process of the reference battery so as to obtain a reference relation between each reference residual capacity and each reference parameter value of the reference battery;
the second detection unit is used for detecting the detection parameter value of the battery to be detected in the using process of the battery to be detected;
the first determining unit is used for determining a battery performance index according to the reference relation and the detection parameter value of the battery to be detected;
a second determining unit for determining the state of health of the battery to be tested according to the battery performance index,
wherein the reference parameter value comprises a discharge time; the detection parameter values comprise a first residual capacity, a second residual capacity and time consumption from the first residual capacity to the second residual capacity of the battery to be detected; the first determination unit is configured to:
according to the first residual electric quantity and the second residual electric quantity, respectively determining corresponding first discharging time and second discharging time from the reference relation;
calculating a discharge time difference according to the first discharge time and the second discharge time;
and determining the battery performance index according to the discharge time difference and the consumed time.
8. The apparatus of claim 7, wherein the second determining unit is configured to:
and under the condition that the battery performance index is smaller than a preset threshold value, determining that the battery to be tested is in an unhealthy state.
9. The apparatus of claim 7, further comprising a prompting unit configured to:
and sending out prompt information for replacing the battery under the condition that the battery to be tested is determined to be in an unhealthy state.
10. A battery state of health detection apparatus, comprising:
the third detection unit is used for detecting reference parameter values of the reference battery under different reference residual capacities in the discharging process of the reference battery so as to obtain the reference relation between each reference residual capacity and each reference parameter value of the reference battery;
the fourth detection unit is used for detecting the detection parameter value of the battery to be detected in the using process of the battery to be detected;
the third determining unit is used for determining the battery performance index according to the reference relation and the detection parameter value of the battery to be detected;
a fourth determination unit for determining the state of health of the battery to be tested according to the battery performance index,
wherein the reference parameter value comprises a discharge time; the detection parameter values comprise a first residual capacity, a second residual capacity and time consumption from the first residual capacity to the second residual capacity of the battery to be detected; the third determination unit is configured to:
determining corresponding first discharging time from the reference relation according to the first residual electric quantity;
calculating a second discharge time according to the first discharge time and the consumed time;
determining corresponding reference residual electric quantity from the reference relation according to the second discharging time;
and determining the battery performance index according to the reference residual capacity and the second residual capacity.
11. The apparatus of claim 10, wherein the fourth determining unit is configured to:
and under the condition that the battery performance index is smaller than a preset threshold value, determining that the battery to be tested is in an unhealthy state.
12. The apparatus of claim 10, further comprising a prompting unit configured to:
and sending out prompt information for replacing the battery under the condition that the battery to be tested is determined to be in an unhealthy state.
13. An electronic device, comprising:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of claims 1 to 6.
14. A computer readable storage medium having stored therein computer instructions which, when executed by a processor, implement the method of any one of claims 1 to 6.
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| CN113791357B (en) * | 2021-11-16 | 2022-03-29 | 深圳维普创新科技有限公司 | Method and related device for intelligently correcting battery display electric quantity |
| CN117517979B (en) * | 2023-12-19 | 2024-04-05 | 浙江地芯引力科技有限公司 | Battery parameter updating method and device, electronic equipment and storage medium |
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