CN118068200A - Battery power determining method, electronic device and storage medium - Google Patents
Battery power determining method, electronic device and storage medium Download PDFInfo
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
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- G—PHYSICS
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- 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]
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Abstract
The application relates to the field of battery charging, and discloses a method for determining battery power, electronic equipment and a storage medium, wherein the method for determining the battery power comprises the following steps: acquiring current state parameters, initial state parameters and historical state parameters of a battery to be charged; determining a state change parameter of the battery to be charged based on the current state parameter and the historical state parameter of the battery to be charged; determining a dynamic reference capacity according to the state change parameter and a preset reference capacity in the initial state parameter, wherein the preset reference capacity is used for representing that the battery to be charged is charged to a full charge capacity reference value of a full charge state in an ideal state; and determining the electric quantity of the battery to be charged based on the dynamic reference capacity. The preset reference capacity can unify the full charge capacity of the batteries of the same model produced by different manufacturers; the state change parameter can determine the state change of the battery; the dynamic reference capacity can further unify the full charge capacity, and display differences in the charge amount can be reduced.
Description
Technical Field
The present application relates to the field of battery charging, and in particular, to a method for determining battery power, an electronic device, and a storage medium.
Background
As cell phones become indispensable and difficult to replace in daily life, users also become more important for charging time. With the appearance of the quick charging technology, the charging time of the newly purchased mobile phone of the same type can be quickly acquired as a parameter for comparison. But in order to guarantee the supply chain of the mobile phone battery, there may be 2 to 3 suppliers of the same model of battery. The battery suppliers may also have inconsistent battery performance of the same type of battery they supply due to their own process, quality management, etc., and there is a high probability that there will be significant differences in many of the battery performances.
These differences can result in the same handset using the same type of battery, with the same battery age, as in the case of the full new, having a charge time difference of about 2 to 5 minutes, even more than 5 minutes. If the charging power is low, the charging time gap is more obvious, and the situation can lead to the doubt of the battery quality and the battery performance of the user, even the doubt that the mobile phone is not brand new, so that the experience of the user is poor.
In view of the foregoing, it is desirable to provide a battery power determination method, apparatus, and storage medium capable of reducing the difference in power display at the time of charging of batteries of the same model provided by different manufacturers.
Disclosure of Invention
The application provides a method, equipment and medium for determining the electric quantity of a battery, which can reduce the electric quantity display difference of batteries of the same model provided by different manufacturers during charging.
In a first aspect, the present application provides a method for determining a battery power, including:
Acquiring current state parameters, initial state parameters and historical state parameters of a battery to be charged;
Determining a state change parameter of the battery to be charged based on the current state parameter and the historical state parameter of the battery to be charged;
Determining a dynamic reference capacity according to the state change parameter and a preset reference capacity in the initial state parameter, wherein the preset reference capacity is used for representing that the battery to be charged is charged to a full charge capacity reference value of a full charge state in an ideal state;
and determining the electric quantity of the battery to be charged based on the dynamic reference capacity.
Preferably, the determining the state change parameter of the battery to be charged based on the current state parameter and the historical state parameter of the battery to be charged includes:
acquiring the current full charge capacity from the current state parameter;
Acquiring a history full charge capacity from the history state parameter;
and determining the state change parameter of the battery to be charged according to the current full charge capacity and the historical full charge capacity.
Preferably, before the dynamic reference capacity is determined according to the preset reference capacities in the state change parameter and the initial state parameter, the method further comprises:
if the historical state parameters comprise the dynamic reference capacity, determining a new dynamic reference capacity according to the state change parameters and the dynamic reference capacity;
Updating the dynamic reference capacity according to the new dynamic reference capacity;
And continuing to execute the step of determining the electric quantity of the battery to be charged based on the dynamic reference capacity.
Preferably, the determining the electric quantity of the battery to be charged based on the dynamic reference capacity includes:
acquiring the current depth of discharge of the battery to be charged;
Determining a residual capacity according to the current discharge depth;
And determining a first electric quantity estimated value according to the dynamic reference capacity and the residual capacity of the battery to be charged.
Preferably, after the determining the first estimated electric quantity value according to the dynamic reference capacity and the remaining capacity of the battery to be charged, the method further includes:
Determining whether the battery to be charged reaches a full charge state or not according to the first electric quantity estimated value;
Under the condition that the battery to be charged does not reach a full charge state, if the first electric quantity estimated value is smaller than a preset charge threshold value, determining a smooth capacity according to a second electric quantity estimated value, the first electric quantity estimated value, the dynamic reference capacity and a preset smooth time; charging the battery to be charged according to the smooth capacity and the preset smooth time, and determining the electric quantity of the battery to be charged;
And under the condition that the battery to be charged does not reach the full charge state, if the first electric quantity estimated value is larger than or equal to the preset charge threshold value, charging the battery to be charged by using a preset charging mode, and determining the electric quantity of the battery to be charged by using a preset electric quantity determining mode until the battery to be charged reaches the full charge state.
Preferably, the determining the smoothing capacity according to the second power estimation value, the first power estimation value, the dynamic reference capacity and the preset smoothing time includes:
Acquiring actual full charge capacity and actual residual capacity of the battery to be charged in the current state based on preset battery model parameters of the battery to be charged; the actual full charge capacity is the actual full charge capacity of the battery to be charged in the current state, which is obtained through simulation, and the actual residual capacity is the actual residual capacity of the battery to be charged in the current state, which is obtained through simulation;
determining a second electric quantity estimated value according to the actual full charge capacity and the actual residual capacity;
Determining an electric quantity estimation difference value according to the second electric quantity estimation value and the first electric quantity estimation value;
and determining a smooth capacity according to the electric quantity estimation difference value, the dynamic reference capacity and a preset smooth time.
Preferably, the charging the battery to be charged according to the smoothing capacity and the preset smoothing time, and determining the electric quantity of the battery to be charged, includes:
Acquiring the integrated capacity per second of the battery to be charged in a charged state; and updating the residual capacity according to the integrated capacity per second and the smooth capacity.
Preferably, after said updating of said remaining capacity according to said integrated capacity per second and said smoothed capacity, further comprising:
and continuing to execute the step of determining the electric quantity of the battery to be charged based on the dynamic reference capacity until the battery to be charged reaches a full charge state.
Preferably, before the determining the state change parameter of the battery to be charged based on the current state parameter and the historical state parameter of the battery to be charged, the method further includes:
acquiring the design capacity of the battery to be charged from the initial state parameter, and acquiring the current full charge capacity from the current state parameter;
If the current full charge capacity is larger than the design capacity of the battery to be charged, determining the health state of the battery to be charged according to the current chemical capacity in the current state parameter, the dynamic reference capacity in the history state parameter, the design chemical capacity in the initial state parameter and the preset reference capacity;
Determining a first electric quantity estimated value according to the dynamic reference capacity and the residual capacity of the battery to be charged;
And performing charge smoothing according to the health state and the first electric quantity estimated value Escalation SOC.
Preferably, after the obtaining the design capacity of the battery to be charged from the initial state parameter and the obtaining the current full charge capacity from the current state parameter, the method further includes:
if the preset reference capacity is smaller than or equal to the design capacity of the battery to be charged, judging whether the preset reference capacity is larger than the actual full charge capacity of the battery to be charged;
and if the preset reference capacity is greater than or equal to the actual full charge capacity of the battery to be charged, updating the value of the actual full charge capacity TFCC into the dynamic reference capacity, and executing the step of determining the state change parameter of the battery to be charged based on the current state parameter and the historical initial state parameter of the battery to be charged.
In a second aspect, the present application proposes an electronic device comprising: a memory, a processor and a computer program stored on the memory and executable on the processor, the processor executing the computer program to perform the method of determining battery charge as described above.
In a third aspect, the present application proposes a computer readable storage medium having stored thereon computer readable instructions executable by a processor to implement a method of determining battery charge as described above.
The application has the advantages that: unifying full charge capacities of batteries to be charged which can be actually used through preset reference capacities, so that display differences of battery charge amounts caused by different full charge capacities of batteries of the same model generated by different manufacturers are reduced; by acquiring the state change parameters of the battery to be charged, the state changes such as the temperature and the health condition of the battery to be charged can be determined; the dynamic reference capacity is determined according to the state change parameters and the preset reference capacity, so that the full charge capacity which can be actually used by the battery can be further changed according to the state change of the battery to be charged, the state of health of the battery and the full charge capacity which is used by the battery of the same model and is similar to the conditions of the use environment of the battery are unified, and the display difference of the charge quantity is reduced.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for the purpose of illustrating preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
FIG. 1 is a schematic diagram of steps of a method for determining battery power according to the present application;
FIG. 2 is a schematic flow chart of a method for determining battery power according to the present application;
FIG. 3 is a schematic diagram illustrating a jump between a first estimated power level and a second estimated power level in a method for determining a battery power level according to the present application;
fig. 4 is a schematic structural diagram of a computer readable storage medium according to the present application.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs.
Due to the durability of the battery (such as the service life of the battery), the inconsistency, such as the capacity inconsistency, the impedance inconsistency, and the like, and even the difference in the charging rate, can cause the charging time inconsistency of the same type of mobile phone using the same type of battery, and the difference in the duration is about 5 minutes. These problems can directly affect the user experience and even lead to user questioning of battery quality. In addition, when the mobile phone is tested, the charging speed cannot meet the conventional standard due to the inconsistency of the batteries, so that the mobile phone needs to be tested repeatedly, and accordingly, the labor and the material resources are increased correspondingly. Because the test of the mobile phone charging rate is unified and standard during the test, the charging speed caused by the inconsistency of the batteries does not reach (for example, the capacity reaches the standard, but the electric quantity is not reported to a hundred), thereby causing repeated retests and affecting the manpower and material resources of the company. Currently, in order to solve this problem, the mobile phone manufacturer can make the battery provider strictly control the battery capacity, but this can lead to a corresponding increase in the cost of the battery.
In order to solve the above problems, the embodiment of the application provides a method for determining battery power, an electronic device and a medium.
Example 1
As shown in fig. 1, a schematic diagram of a method for determining battery power according to an embodiment of the present application includes:
s101, acquiring current state parameters, initial state parameters and historical state parameters of a battery to be charged;
s102, determining a state change parameter of the battery to be charged based on the current state parameter and the historical state parameter of the battery to be charged;
S103, determining dynamic reference capacity according to preset reference capacity in the state change parameter and the initial state parameter, wherein the preset reference capacity is used for representing a full charge capacity reference value that the battery to be charged is charged to a full charge state in an ideal state;
And S104, determining the electric quantity of the battery to be charged based on the dynamic reference capacity.
Wherein the historical state parameters include: historical state parameters such as historical full charge capacity, historical load voltage, historical operating temperature, historical charging current and the like of the battery to be charged during operation stored in the last preset time period. The current state parameters are the obtained current charging voltage, current full charge capacity, current charging temperature, current and other previous state parameters of the battery to be charged. The initial state parameters include: initial state parameters such as full charge capacity of the battery to be charged, preset reference capacity, battery model parameters and the like. The historical full charge capacity is updated continuously. The stored current full charge capacity is taken as the historical full charge capacity at the next preset time period.
The preset reference capacity in the embodiment of the application is determined according to the Full charge capacity (Full CHARGE CAPACITY IN MAH, FCC) obtained by actual measurement. Full charge capacity is obtained by performing discharge test on fresh cells using 0.2C discharge rate at normal temperature as shown in the following formula:
FCC=Qchem*(dodEOC-DODfinal)
wherein Qchem is chemical capacity, DODfinal is depth of discharge, dodEOC is depth of discharge of the battery to be charged recorded when full charge, the depth of discharge is 0% to 100%, the depth of discharge is 0% in a full charge state, and the depth of discharge is 100% in a discharge state. And after the full charge capacity of the same type of batteries of different manufacturers is obtained, taking the full charge capacity with the minimum capacity as the preset reference capacity of the battery of the same type.
Because the existing manufacturer adopts a separate modeling mode to improve the estimation precision of the battery capacity, the battery models of the same type of battery provided by different manufacturers are different. But the separate modeling approach does not solve the problem of inconsistent charge rates for the same type of battery. Also, for the same model of battery provided by different manufacturers, although the full charge voltage Vbat is uniform, the full charge capacity and chemical capacity actually measured are not uniform, which results in a difference in the increase in the value of the electric quantity display in the case of using a percentage display electric quantity. Therefore, by using the minimum full charge capacity as the preset reference capacity and configuring the minimum full charge capacity to the battery to be charged, the same preset reference capacity can be provided for the batteries of the same type with different full charge capacities, so that when any battery of the same type is used as the battery to be charged, the preset reference capacities of the batteries are not affected by different full charge capacities, and the difference of electric quantity display can be reduced during charging.
As shown in fig. 2, in the embodiment of the present application, for step S102, determining a state change parameter of a battery to be charged based on a current state parameter and a historical state parameter of the battery to be charged includes: acquiring the current full charge capacity from the current state parameters; acquiring a history full charge capacity from the history state parameter; and determining the state change parameters of the battery to be charged according to the current full charge capacity and the historical full charge capacity.
Wherein the state change parameter (K) is used for representing the change ratio of the current state to the historical state of the battery, and is determined according to the historical full charge capacity (fcc_old) and the current full charge capacity (fcc_new) by the following formula:
K=FCC_new/FCC_old
The state change parameters determined by this formula include: temperature change, change of discharge rate, influence of aging of a battery to be detected on impedance, and the like.
The full charge capacity Of the battery to be charged can be changed according to the use environment, such as temperature, load and the like, and the specific conditions, such as State Of Health (SOH) and the like, so that the residual capacity RM is correspondingly changed, therefore, the State change parameters Of the battery to be charged are obtained, and the dynamic reference capacity is determined by the State change parameters and the preset reference capacity, so that the full charge capacity Of the battery Of the same model, which is similar to the use environment and the like, which is actually used can be unified, and the display difference Of the electric quantity Of the battery to be charged Of the same model, which is provided by different manufacturers, during charging is reduced.
As shown in fig. 2, in the embodiment of the present application, for step S103, before determining the dynamic reference capacity according to the preset reference capacities in the state change parameter and the initial state parameter, the method further includes: if the historical state parameters comprise the dynamic reference capacity, determining a new dynamic reference capacity according to the state change parameters and the dynamic reference capacity; updating the dynamic reference capacity according to the new dynamic reference capacity; the step of determining the amount of charge of the battery to be charged based on the dynamic reference capacity is continued.
Further, the new dynamic reference capacity is determined by the following formula:
Design FCC_cla=Design FCC_cla*K
Wherein DESIGN FCC _cla on the left of the equal sign is a new dynamic reference capacity, DESIGN FCC _cla on the right of the equal sign is a dynamic reference capacity in the historical state parameters, and K is a state change parameter.
For the battery to be charged, the dynamic reference capacity which has been determined is stored as one of the historical state parameters, after the new state change parameter is obtained, the new dynamic reference capacity can be determined directly by using the newly obtained state change parameter and the dynamic reference capacity which has been obtained, and the dynamic reference capacity in the historical state parameter is updated by using the new dynamic reference capacity, so that the dynamic reference capacity of the battery to be charged can be changed according to specific conditions, and the phenomenon that the battery to be charged has power mutation during charging and use due to large capacity loss after battery aging is avoided.
In the embodiment of the present application, for step S104, determining the electric quantity of the battery to be charged based on the dynamic reference capacity includes: s141, acquiring the current depth of discharge of the battery to be charged; s142, determining the residual capacity according to the current depth of discharge; and S143, determining a first electric quantity estimated value according to the dynamic reference capacity and the residual capacity of the battery to be charged.
The first electric quantity estimated value is the electric quantity of the battery to be charged, and is expressed in percentage. The current depth of discharge (DODpresent) of the battery to be charged is determined from the recorded last depth of discharge point (DOD 0) of the battery to be charged, the accumulated charge (PASSEDCHARGE), the chemical capacity Qchem and the following formula:
DODpresent=DOD0+PassedCharge/Qchem
The remaining capacity RM of the battery to be charged is determined according to the recorded depth of discharge (DODfinal) at the time of discharging the battery to be charged, the current depth of discharge (DODpresent), the chemical capacity Qchem, and the following formula:
RM=(DODfinal- DODpresent)*Qchem
the first power estimation value EscalationSOC is obtained by the remaining capacity (RM), the dynamic reference capacity (design_fcc_cla), and the following formula:
EscalationSOC=RM/Design_FCC_cla
The state-of-the-art charge estimate (SOC) is determined from the remaining capacity (RM) and the Full Charge Capacity (FCC), soc=rm/FCC; however, the remaining capacity is affected by the real full charge capacity (TFCC) and the real available capacity (TRM), and the real full charge capacity (TFCC) and the real available capacity (TRM) are changed according to the aging of the battery or the temperature change, so that the accuracy of the charge estimation value SOC in the related art is poor and the jump is easily generated.
Compared with the state of charge (FCC) and residual capacity (RM) of the battery to be charged in the prior art, the first electric quantity estimated value determined based on the dynamic reference capacity is not affected by the real full charge capacity and the real available capacity, so that jump is not generated, corresponding adjustment can be automatically performed according to the state change parameters of the battery to be charged, the change consistency between the first electric quantity estimated value and the dynamic reference capacity is improved, and the accuracy of the first electric quantity estimated value is improved.
As shown in fig. 2, in the embodiment of the present application, for step S143, after determining the first estimated value of the electric quantity according to the dynamic reference capacity and the remaining capacity of the battery to be charged, the method further includes: s144, determining whether the battery to be charged reaches a full charge state according to the first electric quantity estimated value; s145, if the first electric quantity estimated value is smaller than the preset charging threshold value under the condition that the battery to be charged does not reach the full charge state, determining the smooth capacity according to the second electric quantity estimated value, the first electric quantity estimated value, the dynamic reference capacity and the preset smooth time; s146, charging the battery to be charged according to the smooth capacity and the preset smooth time, and determining the electric quantity of the battery to be charged; and S147, under the condition that the battery to be charged does not reach the full charge state, if the first electric quantity estimated value is larger than or equal to a preset charge threshold value, charging the battery to be charged by using a preset charge mode, and determining the electric quantity of the battery to be charged by using a preset electric quantity determining mode until the battery to be charged reaches the full charge state.
Wherein, whether the battery to be charged reaches the full charge state can be judged according to whether the first electric quantity estimated value is equal to 100; if the first electric quantity estimated value is equal to 100, the battery to be charged reaches a full charge state, and if the first electric quantity estimated value is not equal to 100, the battery to be charged does not reach the full charge state. The preset charge threshold may be set to between 80% and 85% and include any value of 80% and 85%. For the battery to be charged, if the first electric quantity estimation threshold is greater than or equal to the preset charging threshold, a constant-current and constant-voltage mode (preset charging mode) is generally used for charging the battery to be charged, instead of a quick charging mode. The constant-current and constant-voltage charging mode is slow, but can protect the battery to be charged. Under the constant-current and constant-voltage charging mode, the electric quantity of the battery to be charged is hardly displayed in a jumping condition, so that the existing battery electric quantity determining mode can be used. And for the battery to be charged, the first electric quantity estimation threshold value of which is smaller than the preset charging threshold value, the charging mode of the battery to be charged is a quick charging mode.
According to the preset charging threshold, different charging modes are used for protecting the battery to be charged, reducing the damage to the health state of the battery to be charged and delaying the service life of the battery to be charged.
Because the charging rates of the battery cells of the same type of battery provided by different manufacturers have inconsistency, under the same environment, the same charging strategy is adopted, and the capacities of the battery cells of the same type provided by different manufacturers are different, which affects the charging speed of the mobile phone of the same type.
Therefore, when the charging is stopped through the voltage and current control or the charging is stopped according to the full charge mark reported by the electricity meter, whether the charging is stopped can be judged according to whether the first electric quantity estimated value is equal to 100, namely, when the first electric quantity estimated value is equal to 100, the charging can be stopped, or the voltage of the battery to be charged is greater than or equal to the full charge voltage, the charging can be stopped, or the current of the battery to be charged is less than or equal to the full charge current, the charging can be stopped, or the voltage is greater than or equal to the full charge voltage and the current is less than or equal to the full charge current, and the charging can be stopped. Thus, the charging rates of the batteries to be charged of the same type with similar state change parameters can be similar, and the charging rate difference among the batteries to be charged of the same type can be reduced. In the discharging process of the battery to be charged, the dynamic reference capacity is updated and adjusted according to the full charge capacity and the state change parameter, so that the first electric quantity estimated value can be ensured not to jump to be less than 99% immediately after the first electric quantity estimated value is equal to 100, and the user experience is improved.
In addition, because the first electric quantity estimated value is determined based on the preset reference capacity, and the preset reference capacity is the minimum full charge capacity in the battery of the same model, even if the first electric quantity estimated value of the battery to be charged is equal to 100, the battery is not fully charged to the limit, so that a certain delay effect on battery aging is achieved, the service life of the battery is prolonged, the ageing resistance of the battery is improved, the user experience is further improved, and the improvement of the quality of the battery is important.
As shown in fig. 2, in the embodiment of the present application, for step S145, determining the smoothing capacity according to the second power estimation value, the first power estimation value, the dynamic reference capacity, and the preset smoothing time includes: acquiring actual full charge capacity and actual residual capacity of the battery to be charged in the current state based on preset battery model parameters of the battery to be charged; the actual full charge capacity is the actual full charge capacity of the battery to be charged in the current state, which is obtained through simulation, and the actual residual capacity is the actual residual capacity of the battery to be charged in the current state, which is obtained through simulation; determining a second electric quantity estimated value according to the actual full charge capacity and the actual residual capacity; determining an electric quantity estimation difference value according to the second electric quantity estimation value and the first electric quantity estimation value; and determining the smooth capacity according to the electric quantity estimation difference value, the dynamic reference capacity and the preset smooth time.
The preset smoothing time is between 1000 seconds and 3000 seconds and comprises any time of 1000 seconds and 3000 seconds, and the smoothing time can be adaptively adjusted according to the residual electric quantity and the charging time; the smoothing capacity is an adjustment capacity per second for adjusting the power display in the power display, and thus the balancing capacity may be a positive number or a negative number.
As shown in fig. 3, when the temperature of the battery to be charged is greatly changed, such as from a high temperature to a low temperature, the second estimated electric quantity (TSOC) is changed, and the True Full Charge Capacity (TFCC) is correspondingly reduced. The first power estimate (EscalationSOC) is required to respond to the jump of the second power estimate (TSOC), so that a smoothing capacity is required to be determined, and the first power estimate (EscalationSOC) is smoothed, so that the rising rate of the first power estimate (EscalationSOC) is slowed down in the process of the jump of the second power estimate (TSOC), and after a period of smoothing, the first power estimate (EscalationSOC) and the second power estimate (TSOC) gradually approach each other and are equal.
Since the remaining capacity of the battery to be charged is affected by the actual full charge capacity and the actual available capacity, and the actual full charge capacity (TFCC) and the actual available capacity (TRM) are changed according to the aging of the battery or the temperature change, the first and second estimated electric quantities are likely to be unequal at the beginning of charging. The second charge estimation value (TSOC) may be determined according to the True Full Charge Capacity (TFCC) and the true available capacity (TRM) of the battery to be charged, using the following formula:
TSOC=TRM/TFCC
In this case, it is necessary to determine a power estimation difference (Δsoc) between the first power estimation value and the second power estimation value, i.e., Δsoc= TSOC-EscalationSOC.
After determining the charge estimation difference, the smoothing capacity (Δcap) needs to be determined according to a preset smoothing time (t), the charge estimation difference (Δsoc), and the dynamic reference capacity (design_fcc_cla) using the following formula:
Δcap=ΔSOC*Design_FCC_cla/t
By determining the electric quantity estimation difference value, the difference value between the second electric quantity estimation value corresponding to the actual remaining capacity of the battery to be charged and the first electric quantity estimation value corresponding to the remaining capacity of the battery to be charged can be accurately determined; the smooth capacity is determined by the dynamic reference capacity, the preset smooth time and the electric quantity estimation difference value, so that the difference between the second electric quantity estimation value and the first electric quantity estimation value which are slowly reduced in the quick charging process of the battery to be charged can be avoided, and the situation that the displayed electric quantity of the battery to be charged is jumped in the quick charging process is avoided.
In the embodiment of the present application, for step S146, charging the battery to be charged according to the smoothing capacity and the preset smoothing time, and determining the electric quantity of the battery to be charged includes: acquiring the integrated capacity per second of the battery to be charged in a charged state; the remaining capacity is updated based on the integrated capacity and the smoothed capacity per second.
The update of the remaining capacity (RM) is according to the following formula:
RM=RM+ΔmAh+Δcap
The Δmah is the integral capacity per second in the charging process, which is the actually increased capacity per second in the charging process of the battery to be charged. The remaining capacity RM is used only for the displayed amount of electricity of the battery to be charged.
By updating the remaining capacity together with the smoothed capacity, the integrated capacity per second, and the remaining capacity, the electric quantity estimation difference can be slowly and smoothly incorporated into the updating of the remaining capacity, thereby avoiding abrupt jump in the electric quantity of the battery to be charged.
As shown in fig. 2, in the embodiment of the present application, for step S146, after updating the remaining capacity according to the integrated capacity per second and the smoothed capacity, the method further includes: and continuously executing the step of determining the electric quantity of the battery to be charged based on the dynamic reference capacity until the battery to be charged reaches a full charge state.
In the charging process, the actual full charge capacity and the actual available capacity of the battery to be charged may also be changed according to the aging of the battery or the temperature change, so that continuous charging is performed under the condition that no mutation occurs in the external environment of the battery to be charged, and the electric quantity of the battery to be charged needs to be periodically determined again according to the dynamic reference capacity, so that the first electric quantity estimated value corresponding to the updated residual capacity can be more similar to the actual second electric quantity estimated value of the battery to be charged, and the accuracy of the displayed electric quantity is improved. And the smooth capacity is calculated repeatedly in the charging process, and the obtained smooth capacity is blended into the update of the residual capacity in a plurality of times, so that the update of the residual capacity can be flexibly adjusted, and the accuracy of the displayed electric quantity is further improved.
Further, before continuing to perform the step of determining the charge of the battery to be charged based on the dynamic reference capacity until the first charge estimation value is 100, the method further includes: if the difference between the current temperature of the battery to be charged and the stored temperature in the last preset time period exceeds a preset temperature threshold value or the difference between the time of the stored state change parameter and the current time exceeds a preset time threshold value, the step of determining the state change parameter of the battery to be charged based on the current state parameter and the historical state parameter of the battery to be charged is continuously executed.
The preset temperature threshold may be 10 degrees or 20 degrees, and the preset time threshold may be 2 days, 5 days, 10 days, or1 month, 2 months, 3 months, or 6 months, and the preset time threshold may be adjusted according to the health state, the service life, or the service duration of the battery to be charged, for example, the longer the service time of the battery to be charged, the shorter the preset time threshold.
The state change parameters are redetermined according to the change of the current temperature and the change of the service time of the battery to be charged, so that the dynamic reference capacity can be correspondingly adjusted, and the accuracy of electric quantity display in the charging process is improved.
In the embodiment of the present application, for step S102, before determining the state change parameter of the battery to be charged based on the current state parameter and the historical state parameter of the battery to be charged, the method further includes: s121, obtaining the design capacity of the battery to be charged from the initial state parameter, and obtaining the current full charge capacity from the current state parameter; s122, if the current full charge capacity is larger than the design capacity of the battery to be charged, determining the health state of the battery to be charged according to the current chemical capacity in the current state parameter, the dynamic reference capacity in the history state parameter, the design chemical capacity in the initial state parameter and the preset reference capacity; and S123, determining a first electric quantity estimated value according to the dynamic reference capacity and the residual capacity of the battery to be charged, and carrying out charging smoothing according to the health state and the first electric quantity estimated value.
The design capacity (DESIGN CAPACITY) is the nominal capacity of the battery to be charged when the battery leaves the factory, and is usually larger than the full charge capacity, so the current full charge capacity is usually smaller than the design capacity of the battery to be charged. If the current full charge capacity of the battery to be charged is larger than the design capacity, a certain aging condition of the battery to be charged is indicated, so that a conventional electric quantity calculation mode is needed in the condition, and the error of the battery to be charged in the capacity is reduced. In the embodiment of the present application, however, the state of health (SOH) of the battery to be charged is determined using the following formula:
SOH=a*Qchem_new/design_Qchem+b*Design_FCC_cla&25℃/Design_FCC
Wherein Qchem _new is the current chemical capacity, the chemical capacity Qchem changes the aging condition of the updated battery, and the previous chemical capacity is obtained by collecting the discharge capacity and open-circuit voltage of the battery for updating; design_fcc_cla &25 ℃ is a dynamic reference capacity obtained at a temperature of 25 degrees, which can be determined by a Full Charge Capacity (FCC) obtained at a temperature of 25 degrees and a state change parameter (K) obtained at a temperature of 25 degrees; design_fcc is a preset reference capacity; design_ Qchem is the design chemistry capacity; a and b are parameters for adjusting weight, and can be set and updated respectively.
Compared with the conventional health state obtained based on the value with the fixed full charge capacity, the health state determining method provided by the application adopts the ratio between the chemical capacities and the ratio between the set full charge capacities and weights the ratio to obtain the health state with higher precision and better stability.
In the embodiment of the present application, for step S121, after obtaining the design capacity of the battery to be charged from the initial state parameter and obtaining the current full charge capacity from the current state parameter, the method further includes: if the preset reference capacity is smaller than or equal to the design capacity of the battery to be charged, judging whether the preset reference capacity is larger than the actual full charge capacity of the battery to be charged; if the preset reference capacity is larger than or equal to the actual full charge capacity of the battery to be charged, updating the value of the actual full charge capacity into the dynamic reference capacity, and executing the step of determining the state change parameter of the battery to be charged based on the current state parameter and the historical initial state parameter of the battery to be charged.
Because the battery can be aged, when the actual full charge capacity obtained by simulating the battery to be charged at room temperature is smaller than the preset reference capacity, the value of the preset reference capacity can be directly replaced by the value of the actual full charge capacity, and then the step of determining the state change parameter of the battery to be charged based on the current state parameter and the historical state parameter of the battery to be charged is executed, so that the subsequent electric quantity determination and the electric quantity determination during charging are carried out. Because the performance of the batteries of the same model is inconsistent, some batteries may have larger capacity, but ageing is faster, some batteries may have smaller capacity, but ageing performance is better (ageing is slower), so that under the condition that the battery cells are aged later, the actual full charge capacity or the full charge capacity can be used for replacing the preset reference capacity, thereby avoiding influencing the use experience of users.
Example two
Based on the same concept as the above-mentioned method for determining the battery power, the present embodiment further provides an electronic device, including: a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor executing the computer program to perform the method of embodiment one.
The electronic device provided in this embodiment is based on the same concept as the above-mentioned method for determining the battery power, so at least the beneficial effects that can be achieved by the above-mentioned method for determining the battery power can be achieved, and any implementation of the above-mentioned method for determining the battery power can be applied to the electronic device provided in this embodiment, which is not described herein again.
Example III
Based on the same concept as the above-mentioned method for determining the battery power, the present embodiment also provides a computer readable storage medium having computer readable instructions stored thereon, where the computer readable instructions are executable by a processor to implement the method according to the first embodiment.
The computer readable storage medium shown in fig. 4 is an optical disc 30, on which a computer program (i.e. a program product) is stored, which, when being executed by a processor, performs the method for determining the battery level provided by any of the embodiments described above.
It should be noted that examples of the computer readable storage medium may also include, but are not limited to, a phase change memory (PRAM), a Static Random Access Memory (SRAM), a Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), a Read Only Memory (ROM), an Electrically Erasable Programmable Read Only Memory (EEPROM), a flash memory, or other optical or magnetic storage medium, which will not be described in detail herein.
The computer readable storage medium provided by the above embodiment of the present invention has the same advantages as the method adopted, operated or implemented by the application program stored therein, because the same inventive concept is adopted for the determination method of the battery power provided by the embodiment of the present invention.
It should be noted that the above-mentioned embodiments illustrate rather than limit the application, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. Although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application, and are intended to be included within the scope of the appended claims and description. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict.
In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The application can be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the words first, second, third, etc. do not denote any order. These words may be interpreted as names.
The present application is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present application are intended to be included in the scope of the present application. Therefore, the protection scope of the application is subject to the protection scope of the claims.
Claims (12)
1. A method for determining the amount of battery power, comprising:
Acquiring current state parameters, initial state parameters and historical state parameters of a battery to be charged;
Determining a state change parameter of the battery to be charged based on the current state parameter and the historical state parameter of the battery to be charged;
Determining a dynamic reference capacity according to the state change parameter and a preset reference capacity in the initial state parameter, wherein the preset reference capacity is used for representing that the battery to be charged is charged to a full charge capacity reference value of a full charge state in an ideal state;
and determining the electric quantity of the battery to be charged based on the dynamic reference capacity.
2. The method according to claim 1, wherein the determining the state change parameter of the battery to be charged based on the current state parameter and the history state parameter of the battery to be charged includes:
acquiring the current full charge capacity from the current state parameter;
Acquiring a history full charge capacity from the history state parameter;
and determining the state change parameter of the battery to be charged according to the current full charge capacity and the historical full charge capacity.
3. The method of determining battery level according to claim 1, further comprising, before said determining a dynamic reference capacity from a preset reference capacity in said state change parameter and said initial state parameter:
if the historical state parameters comprise the dynamic reference capacity, determining a new dynamic reference capacity according to the state change parameters and the dynamic reference capacity;
Updating the dynamic reference capacity according to the new dynamic reference capacity;
And continuing to execute the step of determining the electric quantity of the battery to be charged based on the dynamic reference capacity.
4. The method of determining the charge of a battery according to claim 1, wherein the determining the charge of the battery to be charged based on the dynamic reference capacity includes:
acquiring the current depth of discharge of the battery to be charged;
Determining a residual capacity according to the current discharge depth;
And determining a first electric quantity estimated value according to the dynamic reference capacity and the residual capacity of the battery to be charged.
5. The method of determining a battery charge according to claim 4, further comprising, after said determining a first charge estimate from said dynamic reference capacity and a remaining capacity of said battery to be charged:
Determining whether the battery to be charged reaches a full charge state or not according to the first electric quantity estimated value;
the method for determining the battery electric quantity determines a smooth capacity according to a second electric quantity estimated value, the first electric quantity estimated value, the dynamic reference capacity and a preset smooth time if the first electric quantity estimated value is smaller than a preset charging threshold value under the condition that the battery to be charged does not reach a full charge state; charging the battery to be charged according to the smooth capacity and the preset smooth time, and determining the electric quantity of the battery to be charged;
And under the condition that the battery to be charged does not reach the full charge state, if the first electric quantity estimated value is larger than or equal to the preset charge threshold value, charging the battery to be charged by using a preset charging mode, and determining the electric quantity of the battery to be charged by using a preset electric quantity determining mode until the battery to be charged reaches the full charge state.
6. The method of claim 5, wherein determining a smoothed capacity based on a second power estimate, the first power estimate, the dynamic reference capacity, and a preset smoothing time comprises:
Acquiring actual full charge capacity and actual residual capacity of the battery to be charged in the current state based on preset battery model parameters of the battery to be charged; the actual full charge capacity is the actual full charge capacity of the battery to be charged in the current state, which is obtained through simulation, and the actual residual capacity is the actual residual capacity of the battery to be charged in the current state, which is obtained through simulation;
determining a second electric quantity estimated value according to the actual full charge capacity and the actual residual capacity;
Determining an electric quantity estimation difference value according to the second electric quantity estimation value and the first electric quantity estimation value;
and determining a smooth capacity according to the electric quantity estimation difference value, the dynamic reference capacity and a preset smooth time.
7. The method according to claim 5 or 6, wherein the charging the battery to be charged according to the smoothing capacity and the preset smoothing time, and determining the electric quantity of the battery to be charged, comprises:
Acquiring the integrated capacity per second of the battery to be charged in a charged state; and updating the residual capacity according to the integrated capacity per second and the smooth capacity.
8. The method of determining the battery level according to claim 7, further comprising, after said updating said remaining capacity based on said integrated capacity per second and said smoothed capacity:
and continuing to execute the step of determining the electric quantity of the battery to be charged based on the dynamic reference capacity until the battery to be charged reaches a full charge state.
9. The method according to claim 1, characterized by further comprising, before said determining a state change parameter of said battery to be charged based on a current state parameter and a history state parameter of said battery to be charged:
acquiring the design capacity of the battery to be charged from the initial state parameter, and acquiring the current full charge capacity from the current state parameter;
If the current full charge capacity is larger than the design capacity of the battery to be charged, determining the health state of the battery to be charged according to the current chemical capacity in the current state parameter, the dynamic reference capacity in the history state parameter, the design chemical capacity in the initial state parameter and the preset reference capacity;
Determining a first electric quantity estimated value according to the dynamic reference capacity and the residual capacity of the battery to be charged;
and carrying out charge smoothing according to the health state and the first electric quantity estimated value.
10. The method according to claim 9, characterized in that after the obtaining the design capacity of the battery to be charged from the initial state parameter and the obtaining the current full charge capacity from the current state parameter, further comprising:
if the preset reference capacity is smaller than or equal to the design capacity of the battery to be charged, judging whether the preset reference capacity is larger than the actual full charge capacity of the battery to be charged;
And if the preset reference capacity is larger than or equal to the actual full charge capacity of the battery to be charged, updating the value of the actual full charge capacity into the dynamic reference capacity, and executing the step of determining the state change parameter of the battery to be charged based on the current state parameter and the historical initial state parameter of the battery to be charged.
11. An electronic device, comprising: memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor executes to implement the method of determining the battery level according to any of the claims 1-10 when the computer program is run.
12. A computer readable storage medium having stored thereon computer readable instructions executable by a processor to implement the method of determining battery charge according to any of claims 1-10.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118444196A (en) * | 2024-07-05 | 2024-08-06 | 浙江地芯引力科技有限公司 | Battery health state prediction method, device, electronic equipment and program product |
| CN118444196B (en) * | 2024-07-05 | 2024-11-19 | 浙江地芯引力科技有限公司 | Battery health state prediction method, device, electronic equipment and program product |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5808445A (en) * | 1995-12-06 | 1998-09-15 | The University Of Virginia Patent Foundation | Method for monitoring remaining battery capacity |
| US6174617B1 (en) * | 1998-07-20 | 2001-01-16 | Sony Chemicals Corporation | Communication method, remaining capacity calculation method, total capacity calculation method, overcharge protection method, information display method, and battery pack |
| KR20020035263A (en) * | 2000-11-06 | 2002-05-11 | 이계안 | Method for estimating residual energy of battery of electric car |
| JP2006170867A (en) * | 2004-12-16 | 2006-06-29 | Sanyo Electric Co Ltd | Calculation method of remaining capacity of battery |
| CN103135056A (en) * | 2011-11-25 | 2013-06-05 | 新德科技股份有限公司 | Battery capacity predicting device and battery capacity predicting method |
| JP2015184194A (en) * | 2014-03-25 | 2015-10-22 | 日本電信電話株式会社 | Method for determining state of battery and system for determining state of battery |
| CN107632272A (en) * | 2017-11-08 | 2018-01-26 | 中颖电子股份有限公司 | A kind of electrokinetic cell electric discharge state-of-charge precise Estimation Method based on the prediction of battery core internal temperature |
| CN109425829A (en) * | 2017-08-31 | 2019-03-05 | 加百裕工业股份有限公司 | Lithium battery capacity check method |
| CN110068765A (en) * | 2018-01-19 | 2019-07-30 | 新盛力科技股份有限公司 | The predictor method of battery capacity |
| JP2021009061A (en) * | 2019-06-28 | 2021-01-28 | パナソニックＩｐマネジメント株式会社 | Storage battery capacity detection method, program, and storage battery capacity detection system |
| CN112540313A (en) * | 2019-09-20 | 2021-03-23 | 比亚迪股份有限公司 | Method for correcting available capacity of battery, vehicle and medium |
| CN112698224A (en) * | 2020-12-03 | 2021-04-23 | Oppo广东移动通信有限公司 | Remaining power estimation method, device, equipment and readable storage medium |
| CN115327422A (en) * | 2022-09-05 | 2022-11-11 | 大连理工大学 | Electric bus power battery health degree evaluation method based on charging and discharging behaviors |
| CN115714437A (en) * | 2021-08-23 | 2023-02-24 | 中兴通讯股份有限公司 | Method and device for displaying charging capacity of battery, electric terminal and storage medium |
| CN117420463A (en) * | 2023-12-19 | 2024-01-19 | 浙江地芯引力科技有限公司 | Method and device for updating chemical capacity of battery, electronic equipment and storage medium |
-
2024
- 2024-04-22 CN CN202410480885.3A patent/CN118068200B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5808445A (en) * | 1995-12-06 | 1998-09-15 | The University Of Virginia Patent Foundation | Method for monitoring remaining battery capacity |
| US6174617B1 (en) * | 1998-07-20 | 2001-01-16 | Sony Chemicals Corporation | Communication method, remaining capacity calculation method, total capacity calculation method, overcharge protection method, information display method, and battery pack |
| KR20020035263A (en) * | 2000-11-06 | 2002-05-11 | 이계안 | Method for estimating residual energy of battery of electric car |
| JP2006170867A (en) * | 2004-12-16 | 2006-06-29 | Sanyo Electric Co Ltd | Calculation method of remaining capacity of battery |
| CN103135056A (en) * | 2011-11-25 | 2013-06-05 | 新德科技股份有限公司 | Battery capacity predicting device and battery capacity predicting method |
| JP2015184194A (en) * | 2014-03-25 | 2015-10-22 | 日本電信電話株式会社 | Method for determining state of battery and system for determining state of battery |
| CN109425829A (en) * | 2017-08-31 | 2019-03-05 | 加百裕工业股份有限公司 | Lithium battery capacity check method |
| CN107632272A (en) * | 2017-11-08 | 2018-01-26 | 中颖电子股份有限公司 | A kind of electrokinetic cell electric discharge state-of-charge precise Estimation Method based on the prediction of battery core internal temperature |
| CN110068765A (en) * | 2018-01-19 | 2019-07-30 | 新盛力科技股份有限公司 | The predictor method of battery capacity |
| JP2021009061A (en) * | 2019-06-28 | 2021-01-28 | パナソニックＩｐマネジメント株式会社 | Storage battery capacity detection method, program, and storage battery capacity detection system |
| CN112540313A (en) * | 2019-09-20 | 2021-03-23 | 比亚迪股份有限公司 | Method for correcting available capacity of battery, vehicle and medium |
| CN112698224A (en) * | 2020-12-03 | 2021-04-23 | Oppo广东移动通信有限公司 | Remaining power estimation method, device, equipment and readable storage medium |
| CN115714437A (en) * | 2021-08-23 | 2023-02-24 | 中兴通讯股份有限公司 | Method and device for displaying charging capacity of battery, electric terminal and storage medium |
| CN115327422A (en) * | 2022-09-05 | 2022-11-11 | 大连理工大学 | Electric bus power battery health degree evaluation method based on charging and discharging behaviors |
| CN117420463A (en) * | 2023-12-19 | 2024-01-19 | 浙江地芯引力科技有限公司 | Method and device for updating chemical capacity of battery, electronic equipment and storage medium |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118444196A (en) * | 2024-07-05 | 2024-08-06 | 浙江地芯引力科技有限公司 | Battery health state prediction method, device, electronic equipment and program product |
| CN118444196B (en) * | 2024-07-05 | 2024-11-19 | 浙江地芯引力科技有限公司 | Battery health state prediction method, device, electronic equipment and program product |
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