CN115347636A - Method and device for determining charging time and storage medium - Google Patents

Abstract

The disclosure relates to a method, device and storage medium for determining charging time, relates to the technical field of battery charging, and is used to improve the accuracy of battery charging time estimation. The method includes: obtaining charging parameters of the battery; The charging stage includes a constant current charging stage or a constant voltage charging stage; based on the charging parameters, determine the first charging time of the battery in the constant current charging stage, and determine the second charging time of the battery in the constant voltage charging stage based on the charging parameters ; Based on the first charging time and the second charging time, determine the charging time of the battery.

Description

Method, device and storage medium for determining charging time

technical field

The present disclosure relates to the technical field of battery charging, in particular to a method, device and storage medium for determining charging time.

Background technique

With the rapid development of electronic product technology, users have higher and higher requirements for accessories of electronic products. For example, for the battery on the terminal, the user needs to know the time required for one discharge and one charge of the battery, especially the display of the charging time. The accurate charging time can enable the user to arrange daily affairs reasonably.

However, the current terminal still uses relatively simple battery information for rough estimation in the estimation display of charging time, which cannot meet user needs. Users often perceive that there is a large gap between the estimated result and the actual charging time, which reduces the user experience and is easy to mislead. Users thought that there was an abnormal charging, which led to an increase in charging complaints.

Contents of the invention

In order to overcome the problems existing in related technologies, the present disclosure provides a method, device and storage medium for determining charging time.

According to the first aspect of an embodiment of the present disclosure, a method for determining charging time is provided, including: obtaining charging parameters of the battery; determining the charging stage of the battery at the current moment, and the charging stage includes a constant current charging stage or a constant voltage Charging stage; based on the charging parameters, determine the first charging time of the battery in the constant current charging stage, and determine the second charging time of the battery in the constant voltage charging stage based on the charging parameters; based on the The first charging time and the second charging time determine the charging time of the battery.

In an embodiment, the determining the first charging time of the battery in the constant current charging phase based on the charging parameters includes: in response to determining that the battery is in the constant current charging phase, and determining to turn on the multiple charging time of the battery Step constant current charging, determine the constant current correction charging current when charging the battery in the multi-step constant current charging stage and the constant voltage initial charging current when charging in the constant voltage charging stage; based on the charging parameters, the constant The current correction charging current and the constant voltage initial charging current determine the first charging time of the battery in the constant current charging phase.

In another embodiment, the charging parameters include full charge capacity, remaining capacity, and charging temperature; the battery is determined based on the charging parameters, the constant current correction charging current, and the constant voltage initial charging current. The first charging time in the constant current charging stage includes: based on the charging temperature and the constant voltage initial charging current, determining the amount to be charged in the constant voltage charging stage of the battery; The charging amount, the full charge capacity and the remaining capacity determine the amount to be charged of the battery in the multi-stage constant current charging stage; according to the amount to be charged in the multi-stage constant current charging stage and the constant current correction current, determine The first charging time of the battery in the constant current charging phase.

In yet another embodiment, the charging parameters include full charge capacity, remaining capacity and charging temperature;

The determining the first charging time of the battery in the constant current charging phase based on the charging parameters and the constant current initial charging current includes: based on the charging temperature and the constant current initial charging current, Determine the amount to be charged in the constant voltage charging phase of the battery; determine the amount to be charged in the constant current charging phase of the battery based on the amount to be charged in the constant voltage charging phase, the full charge capacity, and the remaining capacity; The amount to be charged in the constant current charging phase and the constant current initial charging current determine the first charging time of the battery in the constant current charging phase.

In yet another embodiment, the determining the first charging time of the battery in the constant current charging phase based on the charging parameters includes: in response to determining that the battery is in the constant current charging phase and determining that the battery is not turned on Multi-stage constant current charging, determine the constant current initial charging current when the battery is charged in the constant current phase; based on the charging parameters and the constant current initial charging current, determine the first charging time.

In yet another embodiment, the charging parameters include charging temperature, floating charge voltage change parameters, cut-off current change parameters, and errata constants; the second charging of the battery in the constant voltage charging stage is determined based on the charging parameters Time, including: based on the charging temperature and the constant voltage initial charging current when the battery is charged in the constant voltage charging phase, determine the corresponding constant voltage reference charging time of the battery in the constant voltage charging phase; according to the The floating charge voltage change parameter, the cut-off current change parameter and the errata constant are used to determine the time correction factor corresponding to the battery in the constant voltage charging stage; and to correct the constant voltage reference charging time based on the time correction factor , to obtain the second charging time of the battery in the constant voltage charging phase.

In yet another embodiment, the floating charge voltage change parameters include floating charge voltage increment, floating charge voltage decrement and reference floating charge voltage; the cut-off current change parameters include cut-off current increment, cut-off current decrement and reference cut-off Current; according to the floating charge voltage change parameter, the cut-off current change parameter and the errata constant, determining the time correction factor corresponding to the battery in the constant voltage charging stage includes: according to the reference float charge voltage , the floating charge voltage increment and the float charge voltage decrement determine the floating charge voltage variation ratio;

Determine the cut-off current change ratio according to the reference cut-off current, the cut-off current increment and the cut-off current decrement; determine the cut-off current change ratio based on the floating charge voltage change ratio, the cut-off current change ratio and the errata constant. The time correction factor corresponding to the charging stage of the battery at constant voltage and constant voltage.

According to the second aspect of an embodiment of the present disclosure, there is provided a device for determining charging time, the device comprising: an acquisition module, configured to acquire charging parameters of the battery; a determination module, configured to determine the charging stage of the battery at the current moment , the charging phase includes a constant current charging phase or a constant voltage charging phase; based on the charging parameters, determine the first charging time of the battery in the constant current charging phase, and determine the charging time of the battery in the charging phase based on the charging parameters A second charging time in the constant voltage charging phase; based on the first charging time and the second charging time, determining the charging time of the battery.

In an embodiment, the determining module is specifically configured to, in response to determining that the battery is in the constant current charging phase and determining to start the multi-stage constant current charging of the battery, determine that the battery is in the multi-stage constant current charging phase. The constant current corrected charging current during charging and the constant voltage initial charging current during the constant voltage charging stage; based on the charging parameters, the constant current corrected charging current and the constant voltage initial charging current, determine the The first charging time of the battery in the constant current charging phase.

In another embodiment, the charging parameters include full charge capacity, remaining capacity and charging temperature;

The determination module is specifically further configured to determine the amount to be charged in the constant voltage charging phase of the battery based on the charging temperature and the initial constant voltage charging current; based on the amount to be charged in the constant voltage charging phase, the According to the full charge capacity and the remaining capacity, determine the amount to be charged of the battery in the multi-stage constant current charging stage; according to the amount to be charged in the multi-stage constant current charging stage and the constant current correction current, determine the battery to be charged in the multi-stage constant current charging stage The first charging time of the constant current charging phase.

In yet another embodiment, the determination module is specifically configured to determine that the battery is being charged in the constant current phase in response to determining that the battery is in the constant current charging phase and determining that the multi-stage constant current charging of the battery is not enabled The constant current initial charging current at time; based on the charging parameters and the constant current initial charging current, determine the first charging time of the battery in the constant current charging phase.

In yet another embodiment, the charging parameters include full charge capacity, remaining capacity and charging temperature;

The determination module is specifically further configured to determine the amount to be charged during the constant voltage charging phase of the battery based on the charging temperature and the initial constant current charging current; based on the amount to be charged during the constant voltage charging phase, the According to the full charge capacity and the remaining capacity, determine the amount to be charged of the battery in the constant current charging stage; according to the amount to be charged in the constant current charging stage and the constant current initial charging current, determine the The first charging time of the charging phase.

In yet another embodiment, the charging parameters include charging temperature, float voltage change parameters, cut-off current change parameters, and errata constants;

The determining module is further configured to determine the corresponding constant voltage reference charge of the battery in the constant voltage charging stage based on the charging temperature and the constant voltage initial charging current when the battery is charged in the constant voltage charging stage. Time; according to the floating charge voltage change parameter, the cut-off current change parameter and the errata constant, determine the time correction factor corresponding to the battery in the constant voltage charging stage; based on the time correction factor, the constant voltage The reference charging time is corrected to obtain the second charging time of the battery in the constant voltage charging phase.

In yet another embodiment, the floating charge voltage change parameters include floating charge voltage increment, floating charge voltage decrement and reference floating charge voltage; the cut-off current change parameters include cut-off current increment, cut-off current decrement and reference cut-off current;

The determination module is specifically further configured to determine a floating charge voltage variation ratio according to the reference floating charge voltage, the float charge voltage increment, and the float charge voltage decrement; according to the reference cut-off current, the cut-off The current increment and the cut-off current decrement determine the cut-off current change ratio; based on the floating charge voltage change ratio, the cut-off current change ratio and the errata constant, determine the battery in the constant voltage and constant voltage charging stage. The corresponding time correction factor.

According to a third aspect of an embodiment of the present disclosure, there is provided an apparatus for determining charging time, including: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to: execute the above-mentioned first The battery time determination method described in the aspects and embodiments thereof.

According to the fourth aspect of the embodiments of the present disclosure, there is provided a non-transitory computer-readable storage medium. When the instructions in the storage medium are executed by the processor of the terminal, the terminal can perform the above-mentioned first aspect and its implementation. How to determine battery time as described in the example.

The technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects: By acquiring the charging parameters of the battery and determining that the charging phase of the battery includes a constant current charging phase or a constant voltage charging phase, the battery is determined based on the charging parameters in the constant current charging phase. The first charging time and the second charging time of the battery in the constant voltage charging stage, because the charging time of the battery is determined in stages, and the charging time of each stage is determined according to the charging parameters, so the first charging based on the constant current charging stage The estimated charging time of the battery determined by the time and the second charging time of the constant voltage charging stage is more accurate than the charging time determined only according to the charging capacity and charging current value of the battery in the related art, which improves the user experience.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description serve to explain the principles of the disclosure.

Fig. 1 is a flowchart showing a method for determining charging time according to an exemplary embodiment.

Fig. 2 is a flow chart showing another method for determining charging time according to an exemplary embodiment.

Fig. 3 is a schematic diagram showing a constant current charging phase and a multi-stage constant current charging phase according to an exemplary embodiment.

Fig. 4 is a flow chart showing another method for determining charging time according to an exemplary embodiment.

Fig. 5 is a flow chart showing another method for determining charging time according to an exemplary embodiment.

Fig. 6 is a flow chart showing another method for determining charging time according to an exemplary embodiment.

Fig. 7 is a flow chart showing another method for determining charging time according to an exemplary embodiment.

Fig. 8 is a flow chart showing another method for determining charging time according to an exemplary embodiment.

Fig. 9 is a block diagram of a device for determining charging time according to an exemplary embodiment.

Fig. 10 is a block diagram of an apparatus for determining charging time according to an exemplary embodiment.

Detailed ways

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure.

As mentioned in the background technology, current terminals still use relatively simple battery information for rough estimation on the estimation display of charging time, which cannot meet user needs. Users often perceive a large gap between the estimated result and the actual charging time, which reduces the use It is also easy to mislead users into thinking that there is a charging abnormality, which will lead to an increase in charging customer complaints.

Exemplarily, the estimation and display of the charging time of the current terminal is mainly obtained through a simple calculation formula, specifically by calculating the difference between the current power and the full charge, and then calculating the capacity value to be charged according to the battery capacity, and then Combined with the charging current value, calculate the remaining charging time.

However, with the development of terminal charging technology, charging time is strongly related to specific factors such as charging type, device support power, charging temperature rise scenario, and battery status, and there are huge differences. The current terminal fails to fully consider the charging impact caused by factors such as charging type, battery status, temperature rise and current limit in the estimation and display of charging time, which leads to large errors or lack of adaptability in the actual estimation results due to fewer calculation dimensions. result.

Based on the above problems, the embodiment of the present disclosure determines the charging time of the battery in stages, and the charging time of each stage is determined according to the charging parameters. The embodiment of the present disclosure considers the influence of the charging parameters on the charging time, thus improving the estimation accuracy of the charging time of the battery and improving the user experience at the same time.

Fig. 1 is a flow chart of a method for determining charging time according to an exemplary embodiment, as shown in Fig. 1 , it includes the following steps.

In step S11, the charging parameters of the battery are acquired.

Optionally, the charging parameters of the battery include but are not limited to fixed specification parameters of the battery (such as battery type, full charge capacity, durable parameters, etc.), parameters that change in real time during the charging process of the battery (such as charging current, voltage, remaining power, etc. ) and some artificially set parameters (such as floating charge voltage decrement, cut-off current decrement, etc.), the embodiment of the present disclosure does not limit the charging parameters of the battery.

In step S12, the charging stage of the battery at the current moment is determined.

Wherein, the charging phase of the battery includes a constant current charging phase or a constant voltage charging phase. The constant current charging stage means that the charging current when charging the battery is constant, and the constant voltage charging stage means that the charging voltage when charging the battery is constant. When the voltage of the battery in the constant current charging stage reaches the cut-off voltage, it enters the constant voltage charging stage.

In step S13, the first charging time of the battery in the constant current charging phase is determined based on the charging parameters, and the second charging time of the battery in the constant voltage charging phase is determined based on the charging parameters.

In step S14, the charging time of the battery is determined based on the first charging time and the second charging time.

Wherein, the charging time of the battery is an estimated charging time, and as the battery is being charged, the determined charging time of the battery is also constantly changing.

Specifically, the sum of the first charging time and the second charging time is the charging time of the battery.

The embodiment of the present disclosure determines the charging time of the battery by stages, and the charging time of each stage is determined according to the charging parameters, so the battery determined based on the first charging time of the constant current charging stage and the second charging time of the constant voltage charging stage Compared with the charging time determined only according to the charging capacity of the battery and the charging current value in the related art, the estimated charging time is more accurate and improves the user experience.

As a possible implementation, the current of the battery during the constant current charging phase is theoretically unchanged, but due to the influence of environmental factors, the state of the battery itself, etc., the current of the battery during the constant current charging phase will change. At this time, if the first charging time is calculated according to the constant current initial current of the battery in the constant current charging stage, an error will occur in the first charging time. Therefore, when the battery current changes in the constant current charging stage, the first charging The time is determined in the following manner, as shown in Figure 2, including the following steps:

In step S21, in response to determining that the battery is in the constant current charging stage, and determining to start the multi-stage constant current charging of the battery, determine the constant current corrected charging current when the battery is charged in the multi-stage constant current charging stage and the constant voltage charging stage. Constant voltage initial charge current during charging.

Among them, multi-stage constant current charging means that the current of the battery changes during the constant current charging stage, and the current corresponding to each time stage is different, and the current in each time stage is the same. Exemplarily, (a) in FIG. 3 shows a time-current diagram in the constant-current charging phase, and (b) in FIG. 3 shows a time-current diagram in the multi-stage constant-current charging phase.

Optionally, the current corresponding to each stage in the multi-stage constant current charging of the battery is the fixed specification information of the battery. That is to say, when it is determined to start the multi-stage constant current charging of the battery, the cut-off current of each stage of the battery under the multi-stage constant current charging can be determined according to the specifications of the battery. For example, if the specification of the battery is type A, then the order of its multi-stage constant current charging is 3 stages, then the cut-off current corresponding to the first stage is I1 (mA), the cut-off current corresponding to the second stage is I2 (mA), and the cut-off current corresponding to the second stage is I2 (mA). The cut-off current corresponding to the third order is I3 (mA). No matter how parameters such as temperature and voltage change, the cut-off current corresponding to each step will not change.

Optionally, the current charging voltage of the battery is used to determine whether the battery is in the constant current charging phase, and the current charging current of the battery is used to determine whether to enable multi-stage constant current charging of the battery.

Specifically, if the current charging voltage of the battery is less than the cut-off voltage, it is determined that the battery is in the constant current charging stage; current, it is determined to start the multi-stage constant current charging of the battery.

Optionally, the constant current correction charging current of the battery when charging in the multi-stage constant current charging stage is determined according to the formula Icc'=α·Icc, wherein, Icc' represents the constant current correction charging current (mA), and α represents the step charge correction Factor, Icc said constant current initial charging current (mA).

Wherein, the initial constant current charging current is the current at which the battery enters the constant current charging phase, and the current can be detected and obtained by a current sensor. The step charge correction factor is determined according to the multi-stage current in multi-stage constant current charging. For example, the current multi-stage current of the battery is i1, i2, and i3 respectively. When the current sensor detects that the current i4 of the battery is between i1 and i2, Then determine the charge correction factor according to the weight occupied by i4 between i1 and i3.

Further, the initial constant-voltage charging current during charging in the constant-voltage charging stage is the cut-off current in of the last stage under multi-stage constant-current charging. Exemplarily, as shown in (b) of FIG. 3 , i3 is the cut-off current of the last stage of multi-stage constant current charging, that is, i3 is the constant voltage initial charging current during charging in the constant voltage charging stage.

In step S22, the first charging time of the battery in the constant current charging stage is determined based on the charging parameters, the constant current corrected charging current and the constant voltage initial charging current.

In some embodiments, the charging parameters include full charge capacity, remaining capacity and charging temperature. Among them, the full charge capacity represents the rated capacity of the battery, the remaining capacity represents the remaining capacity of the battery at the current moment, and the charging temperature represents the current temperature of the battery (which can be obtained through a temperature sensor, etc.).

Based on this, as shown in FIG. 4 , step S22 may be specifically implemented as the following steps.

In step S221 , based on the charging temperature and the initial charging current of the constant voltage, the amount to be charged in the constant voltage charging phase of the battery is determined.

Optionally, if the charging temperature of the battery and the initial charging current of the constant voltage are determined, since the cut-off current when the battery is fully charged is determined, at the same temperature, the initial charging current of the constant voltage drops to the The slope of the cut-off current is fixed, so the current-time curve of the constant voltage charging phase is determined accordingly. Therefore, according to the design of the battery specifications, the simulation establishes the charging time mapping table of the constant voltage charging stage at different temperatures and different constant voltage initial charging currents. Since the full charge capacity of batteries of different specifications is different, it is shown in Table 1 below.

Table 1

Among them, T represents the charging temperature (°C) of the battery at the current moment, and Icv represents the constant voltage initial charging current (mA) of the battery. Since the full charge capacity of different batteries is different, when charging the battery at different charging rates The charging current is also different, so the constant voltage initial charging current in the above Table 1 is represented by Icv = charging rate (c) × full charge capacity FCC (mAh), and tcv represents the constant voltage reference charging of the battery in the constant voltage charging stage time(s).

Further, the current-time curve of the constant voltage charging stage can be determined according to the charging temperature and the constant voltage initial charging current, and the slope of the curve in the constant voltage charging stage can be further determined, and the battery can be determined according to the curve slope and the constant voltage initial charging current. The amount to be charged in the constant voltage charging stage.

Specifically, according to the formula Ccv=k·Icv to determine the battery to be charged in the constant voltage charging stage, wherein, Ccv represents the battery to be charged in the constant voltage charging stage, k represents the slope of the curve in the constant voltage charging stage, Icv represents the constant voltage starting start charging current.

Optionally, if the constant voltage initial charging current of the battery is not shown in the above Table 1, the charging time tcv in the constant voltage charging stage is calculated by an interpolation method. For example, when entering the constant voltage charging stage, the charging temperature Tbat of the battery is 15 degrees, and the constant voltage initial charging current Icv is 1.2c×FCC, then the following formula can be used to calculate the The constant voltage reference charging time tcv(15, 1.2c×FCC) when the current is (1.2c×FCC)mA:

Among them, tcv(15, 1.2c×FCC) represents the constant voltage reference charging time of the battery when the charging temperature is 15°C and the constant voltage initial charging current Icv is 1.2c×FCC, and tcv(15, 1c×FCC) represents the battery The constant voltage reference charging time when the charging temperature is 15°C and the constant voltage initial charging current Icv is 1c×FCC, tcv(15,1.4c×FCC) means that the battery is charged at 15°C and the constant voltage initial charging current The constant voltage reference charging time when Icv is 1.4c×FCC, Icv(1.2c×FCC) means the constant voltage initial charging current of the battery is (1.2c×FCC)mA, and Icv(1c×FCC) means the constant voltage of the battery The initial charging current is (1c×FCC)mA, and Icv(1.4c×FCC) means that the constant voltage initial charging current of the battery is (1.4c×FCC)mA.

In step S222, based on the to-be-charged amount, the full charge capacity and the remaining capacity in the constant-voltage charging stage, the to-be-charged amount of the battery in the multi-stage constant-current charging stage is determined.

Specifically, according to the formula Ccc=FCC-RM-Ccv to determine the battery to be charged in the multi-stage constant current charging stage, wherein, Ccc represents the battery to be charged in the multi-stage constant current charging stage (mAh), FCC represents the full charge of the battery Capacity (mAh), RM means the remaining capacity of the battery (mAh), and Ccv means the amount to be charged in the constant voltage charging phase of the battery (mAh).

In step S223, the first charging time of the battery in the constant current charging phase is determined according to the amount to be charged in the multi-stage constant current charging phase and the constant current correction current.

确定电池在恒流充电阶段的第一充电时间。其中，tcc’表示电池在恒流充电阶段的第一充电时间(s)，Ccc表示多阶恒流充电阶段待充电量(mAh)，Icc’表示恒流修正电流(mA)，Icc’＝α·Icc。Specifically, according to the formula

Determine the first charging time of the battery in the constant current charging phase. Among them, tcc' represents the first charging time (s) of the battery in the constant current charging phase, Ccc represents the charging capacity (mAh) in the multi-stage constant current charging phase, Icc' represents the constant current correction current (mA), Icc'=α · Icc.

In summary, the first charging time of the battery in the constant current charging phase is determined according to the following formula:

Among them, tcc' represents the first charging time (s) of the battery in the constant current charging stage, Ccc represents the charging capacity (mAh) in the multi-stage constant current charging stage, Icc' represents the constant current correction current (mA), FCC represents the battery Full charge capacity (mAh), RM indicates the current remaining capacity of the battery (mAh), Ccv indicates the charging capacity of the battery in the constant voltage charging stage (mAh), α indicates the step charge correction factor, and Icc indicates the constant current initial charging current (mA ), k represents the slope of the curve in the constant voltage charging phase, and Icv represents the constant voltage initial charging current (mA).

In the embodiment of the present disclosure, when it is determined that the battery is in the constant current charging stage, and it is determined to start the multi-stage constant current charging of the battery, it means that the current of the battery in the constant current charging stage has changed compared with the constant current initial charging current , at this time, the constant current initial charging current is corrected according to the step charging correction factor under multi-stage constant current charging, and a more accurate constant current correction current is obtained; at the same time, due to the current change of the battery in the constant current charging stage, the battery The constant-voltage initial charging current in the constant-voltage charging stage changes, so based on the changed constant-voltage initial current, a more accurate charge amount in the constant-voltage charging stage can be determined, and a more accurate multi-stage constant-current charging stage can be determined. Therefore, the first charging time determined based on the to-be-charged amount in the multi-stage constant current charging stage and the constant current correction current is more accurate.

As another possible implementation, the current of the battery has not changed during the constant current charging phase, and the first charging time is determined in the following manner, as shown in Figure 5, including the following steps:

In step S31 , in response to determining that the battery is in the constant current charging phase and determining that the multi-stage constant current charging of the battery is not enabled, determine the initial constant current charging current when the battery is being charged in the constant current phase.

Optionally, if the current charging voltage of the battery is less than the cut-off voltage, it is determined that the battery is in the constant current charging phase; if the current charging current of the battery is equal to the constant current starting current, it is determined that the multi-stage constant current charging of the battery is not enabled.

In step S32, based on the charging parameters and the initial constant current charging current, the first charging time of the battery in the constant current charging phase is determined.

In some embodiments, the charging parameters include full charge capacity, remaining capacity and charging temperature. Based on this, as shown in FIG. 6 , step S32 may be specifically implemented as the following steps.

In step S321 , based on the charging temperature and the constant current initial charging current, the battery's chargeable amount in the constant voltage charging phase is determined.

Optionally, the process of determining the to-be-charged capacity of the battery during the constant-voltage charging phase in this step is the same as that in step S221, and will not be described here again.

The difference is that the constant current initial charging current in this embodiment is the same as the constant voltage initial charging current, so the constant current initial charging current is used to calculate the charging capacity of the battery during the constant voltage charging stage.

In step S322, based on the to-be-charged amount, the full charge capacity and the remaining capacity in the constant-voltage charging stage, the to-be-charged amount of the battery in the constant-current charging stage is determined.

Specifically, according to the formula Ccc ₁ =FCC-RM-Ccv to determine the battery to be charged in the constant current charging stage, wherein, Ccc ₁ represents the battery to be charged in the constant current charging stage (mAh), FCC represents the full charge capacity of the battery ( mAh), RM represents the remaining capacity of the battery (mAh), and Ccv represents the amount to be charged in the constant voltage charging phase of the battery (mAh).

In step S323, the first charging time of the battery in the constant current charging phase is determined according to the amount to be charged in the constant current charging phase and the initial constant current charging current.

确定电池在恒流充电阶段的第一充电时间。其中，tcc表示电池在恒流充电阶段的第一充电时间(s)，Ccc表示恒流充电阶段待充电量(mAh)，Icc表示恒流起始充电电流(mA)。Specifically, according to the formula

Determine the first charging time of the battery in the constant current charging phase. Among them, tcc represents the first charging time (s) of the battery in the constant current charging phase, Ccc represents the charging capacity (mAh) in the constant current charging phase, and Icc represents the constant current initial charging current (mA).

In summary, the first charging time of the battery in the constant current charging phase is determined according to the following formula:

在本公开实施例中，当确定电池处于恒流充电阶段，且确定未开启电池的多阶恒流充电时，则表示电池在恒流充电阶段的电流一直未发生变化，此时只需要根据电池的充电温度确定电池的恒压充电阶段待充电量，从而确定更为准确的恒流充电阶段待充电量，进一步的基于恒流充电阶段待充电量和恒流起始电流确定的第一充电时间更加准确。

In the embodiment of the present disclosure, when it is determined that the battery is in the constant current charging stage, and it is determined that the multi-stage constant current charging of the battery is not turned on, it means that the current of the battery in the constant current charging stage has not changed. The charging temperature of the battery determines the amount to be charged in the constant voltage charging stage of the battery, thereby determining a more accurate amount to be charged in the constant current charging stage, and further based on the amount to be charged in the constant current charging stage and the first charging time determined by the constant current initial current more precise.

In some embodiments, the charging parameters include charging temperature, float voltage variation parameters, cut-off current variation parameters, and errata constants. Based on this, the second charging time is determined in the following manner, as shown in Figure 7, including the following steps:

In step S41, based on the charging temperature and the constant voltage initial charging current when the battery is charged in the constant voltage charging stage, the constant voltage reference charging time corresponding to the battery in the constant voltage charging stage is determined.

Optionally, when the battery starts multi-stage constant current charging in the constant current charging stage, the constant voltage initial charging current is the cut-off current corresponding to the last stage in the multi-stage constant current charging; In step constant current charging, the constant voltage initial charging current is the constant current initial charging current.

Further, based on the charging temperature and the constant voltage initial charging current, the constant voltage reference charging time corresponding to the battery in the constant voltage charging stage is determined through the above Table 1.

Exemplarily, if the charging temperature is 15, and the constant voltage initial charging current is 1, then the constant voltage reference charging time of the battery is tcv(15, 1). If the constant voltage initial charging current of the battery is not shown in the above Table 1, the constant voltage reference charging time is calculated by interpolation method.

In step S42, the time correction factor corresponding to the constant voltage charging phase of the battery is determined according to the floating charge voltage change parameter, the cut-off current change parameter and the errata constant.

Optionally, in addition to the solution for determining the time correction factor provided by the embodiments of the present disclosure, there are other unfixed factors that lead to changes in the charging time, so the embodiments of the present disclosure perform corrections at any time by setting an errata constant.

Wherein, the float voltage change parameter includes float voltage increment, float voltage decrement, and reference float voltage; the cutoff current change parameter includes cutoff current increment, cutoff current decrement, and reference cutoff current. The reference floating charge voltage indicates the cut-off voltage of the battery during the constant current charging stage. When the voltage of the battery in the constant current charging stage reaches the reference floating charge voltage, the constant current charging stage ends; Cut-off current, when the current of the battery in the constant-voltage charging phase reaches the reference cut-off current, the constant-voltage charging phase ends. Both the reference float voltage and the reference cut-off current are predetermined according to the specifications of the battery.

Optionally, in order to speed up the charging rate of the battery, the reference float voltage will be increased on the basis of the reference float voltage to obtain a float voltage increment, so that the battery can quickly reach the reference float voltage during the constant current charging stage. Similarly, On the basis of the reference cut-off, the cut-off current is increased by increasing the reference cut-off current, so that the battery can quickly reach the reference cut-off current in the constant voltage charging stage.

Specifically, the float voltage increment and cut-off current increment are predetermined according to the charging type of the battery. The charging type is the charging type under the fast charging state, such as the charging type under the BC protocol, the charging type under the USB-pd protocol, the charging type under the Qualcomm QC protocol and other common charging types, and the battery under different charging protocols The set float voltage increment and cut-off current increment are different.

Due to the aging state of the battery, the actual capacity may be smaller than the full charge capacity in the above steps. Therefore, in order to avoid overcharging, the floating charge voltage decrement and cut-off current decrement are predetermined according to the battery health and battery durability parameters. , when the voltage reaches the floating charge voltage decrement, the charging in the constant current charging stage is stopped, and when the current reaches the cut-off current decrement, the charging in the constant voltage charging stage is stopped. Further, according to the reference float voltage, float voltage increment and float voltage decrement, determine the float voltage change ratio; according to the reference cut-off current, cut-off current increment and cut-off current decrement, determine the cut-off current change ratio, and Based on the change ratio of the floating charge voltage, the change ratio of the cut-off current and the errata constant, the time correction factor corresponding to the constant voltage and constant voltage charging stage of the battery is determined.

其中，Vflt表示基准浮充电压(V)，Vp表示浮充电压增量(V)，Vm表示浮充电压减量(V)，Iterm表示基准截止电流(mA)，Ip表示截止电流增量(mA)，Im表示截止电流减量mA)。Specifically, the time correction factor corresponding to the battery charging phase at constant voltage is determined according to the formula β=A·B·ω. Among them, β represents the time correction factor corresponding to the constant voltage charging stage of the battery, A represents the floating charge voltage change ratio, B represents the cut-off current change ratio, and ω is the errata constant. more specific,

Among them, Vflt represents the reference float voltage (V), Vp represents the float voltage increment (V), Vm represents the float voltage decrement (V), Iterm represents the reference cut-off current (mA), and Ip represents the cut-off current increment ( mA), Im represents the cut-off current decrement mA).

In step S43, the constant voltage reference charging time is corrected based on the time correction factor to obtain a second charging time of the battery in the constant voltage charging phase.

Specifically, the second charging time of the battery in the constant voltage charging phase is determined according to the formula tcv'=β·tcv, where tcv represents the constant voltage reference charging time (s).

In summary, the second charging time of the battery in the constant voltage charging phase is determined according to the following formula:

In the embodiment of the present disclosure, the second charging time is obtained by correcting the constant voltage reference charging time by the time correction factor. Since the time correction factor is determined based on multiple charging parameters and various factors are considered, the corrected first Second, the charging time is more accurate.

In some other embodiments, if the battery is currently in the constant voltage charging stage, the first charging time of the battery in the constant current charging stage is not considered, that is to say, the first charging time is 0, and the charging estimate of the battery at this time The time is the second charging time.

In order to more clearly illustrate the charging method of the charging time proposed by the embodiment of the present disclosure, the following will be described in conjunction with a specific flow chart, as shown in FIG. 8 .

The first solution is to obtain the charging parameters of the battery. When the battery is in the constant current charging stage and it is determined to start the multi-stage constant current charging of the battery, determine the constant current correction current Icc' and the constant voltage initial charging current Icv, and based on the charging parameters and constant current correction current Icc' and constant voltage initial charging current Icv determine the first charging time tcc' of the battery in the constant current charging phase, and then determine the constant voltage reference charging time tcv of the battery in the constant voltage charging phase based on the charging parameters, The time correction factor β is determined based on the charging parameters, and the constant voltage reference charging time tcv is corrected by the time correction factor β to determine the second charging time Tcv′, and the estimated charging time t=tcc′+tcv′.

The second scheme is to obtain the charging parameters of the battery. When the battery is in the constant current charging stage and it is determined that the multi-stage constant current charging of the battery is not turned on, determine the constant current initial charging current Icc (constant voltage initial charging current Icv=Icc ), and determine the first charging time tcc of the battery in the constant current charging stage based on the charging parameters and the constant current initial charging current Icc, and then determine the constant voltage reference charging time tcv of the battery in the constant voltage charging stage based on the charging parameters, and based on the charging The parameters determine the time correction factor β, and the constant voltage reference charging time tcv is corrected by the time correction factor β to determine the second charging time Tcv′, and the estimated charging time t=tcc+tcv′.

The third solution is to obtain the charging parameters of the battery. When the battery is in the constant voltage charging stage, the first charging time is 0. Based on the charging parameters, determine the constant voltage reference charging time tcv of the battery in the constant voltage charging stage, and based on the charging parameters Determine the time correction factor β, use the time correction factor β to correct the constant voltage reference charging time tcv, determine the second charging time Tcv′, and charge the estimated time t=tcv′.

In the embodiments of the present disclosure, the influence of the charging parameters on the charging time is fully considered, and the accuracy of the estimated charging time is improved.

Based on the same idea, an embodiment of the present disclosure also provides a device for determining charging time.

It can be understood that, in order to realize the above-mentioned functions, the device for determining the charging time provided by the embodiments of the present disclosure includes corresponding hardware structures and/or software modules for performing various functions. Combining the units and algorithm steps of each example disclosed in the embodiments of the present disclosure, the embodiments of the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software drives hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the technical solutions of the embodiments of the present disclosure.

Fig. 9 is a block diagram of an apparatus for determining charging time according to an exemplary embodiment. Referring to FIG. 9 , the device includes an acquisition module 101 and a determination module 102 .

The acquiring module 101 is configured to acquire charging parameters of the battery;

The determining module 102 is configured to determine the charging stage of the battery at the current moment, the charging stage includes a constant current charging stage or a constant voltage charging stage; based on the charging parameters, determine the first charging time of the battery in the constant current charging stage, and based on the charging The parameter determines the second charging time of the battery in the constant voltage charging phase; based on the first charging time and the second charging time, the charging time of the battery is determined.

In one embodiment, the determining module 102 is specifically configured to determine the constant current corrected charging when the battery is charged in the multi-stage constant current charging stage in response to determining that the battery is in the constant current charging stage and determining to enable the multi-stage constant current charging of the battery. Current and constant voltage initial charging current during charging in the constant voltage charging phase; based on charging parameters, constant current corrected charging current and constant voltage initial charging current, determine the first charging time of the battery in the constant current charging phase.

In another embodiment, the charging parameters include full capacity, remaining capacity and charging temperature;

The determination module 102 is also specifically configured to determine the chargeable amount of the battery in the constant voltage charging stage based on the charging temperature and the constant voltage initial charging current; The amount to be charged in the multi-stage constant current charging stage; according to the amount to be charged in the multi-stage constant current charging stage and the constant current correction current, the first charging time of the battery in the constant current charging stage is determined.

In yet another embodiment, the determination module 102 is specifically configured to, in response to determining that the battery is in the constant current charging phase and determining that the multi-stage constant current charging of the battery is not enabled, determine the constant current starting point when the battery is charged in the constant current phase. The initial charging current; based on the charging parameters and the constant current initial charging current, determine the first charging time of the battery in the constant current charging phase.

In yet another embodiment, the charging parameters include full capacity, remaining capacity and charging temperature;

The determination module 102 is also specifically configured to determine the chargeable amount of the battery in the constant voltage charging stage based on the charging temperature and the constant current initial charging current; The amount of battery to be charged in the constant current charging stage; according to the amount to be charged in the constant current charging stage and the initial charging current of the constant current, determine the first charging time of the battery in the constant current charging stage.

In yet another embodiment, the charging parameters include charging temperature, float voltage change parameters, cut-off current change parameters, and errata constants;

The determination module 102 is also specifically configured to determine the constant voltage reference charging time corresponding to the battery in the constant voltage charging phase based on the charging temperature and the constant voltage initial charging current when the battery is charged in the constant voltage charging phase; parameters, cut-off current change parameters, and errata constants to determine the corresponding time correction factor of the battery in the constant voltage charging stage; based on the time correction factor, the constant voltage reference charging time is corrected to obtain the second charging time of the battery in the constant voltage charging stage.

In yet another embodiment, the float voltage change parameters include float voltage increment, float voltage decrement, and reference float voltage; the cut-off current change parameters include cut-off current increment, cut-off current decrement, and reference cut-off current;

The determination module 102 is also specifically configured to determine the change ratio of the floating charge voltage according to the reference floating charge voltage, the increment of the float charge voltage and the decrement of the float charge voltage; according to the reference cut-off current, the increment of the cut-off current and the decrement of the cut-off current Determine the cut-off current change ratio; based on the floating charge voltage change ratio, the cut-off current change ratio and the errata constant, determine the time correction factor corresponding to the battery's constant voltage and constant voltage charging phase.

Regarding the apparatus in the foregoing embodiments, the specific manner in which each module executes operations has been described in detail in the embodiments related to the method, and will not be described in detail here.

Fig. 10 is a block diagram showing a device 200 for determining charging time according to an exemplary embodiment. For example, the apparatus 200 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like.

10, apparatus 200 may include one or more of the following components: processing component 202, memory 204, power component 206, multimedia component 208, audio component 210, input/output (I/O) interface 212, sensor component 214, and communication component 216 .

The processing component 202 generally controls the overall operations of the device 200, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 202 may include one or more processors 220 to execute instructions to complete all or part of the steps of the above method. Additionally, processing component 202 may include one or more modules that facilitate interaction between processing component 202 and other components. For example, processing component 202 may include a multimedia module to facilitate interaction between multimedia component 208 and processing component 202 .

The memory 204 is configured to store various types of data to support operations at the device 200 . Examples of such data include instructions for any application or method operating on device 200, contact data, phonebook data, messages, pictures, videos, and the like. The memory 204 can be implemented by any type of volatile or non-volatile storage device or their combination, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic or Optical Disk.

The power component 206 provides power to various components of the device 200 . Power components 206 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for device 200 .

The multimedia component 208 includes a screen that provides an output interface between the device 200 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may not only sense a boundary of a touch or swipe action, but also detect duration and pressure associated with the touch or swipe action. In some embodiments, the multimedia component 208 includes a front camera and/or a rear camera. When the device 200 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capability.

The audio component 210 is configured to output and/or input audio signals. For example, the audio component 210 includes a microphone (MIC), which is configured to receive external audio signals when the device 200 is in operation modes, such as call mode, recording mode and voice recognition mode. Received audio signals may be further stored in memory 204 or sent via communication component 216 . In some embodiments, the audio component 210 also includes a speaker for outputting audio signals.

The I/O interface 212 provides an interface between the processing component 202 and a peripheral interface module. The peripheral interface module may be a keyboard, a click wheel, a button, and the like. These buttons may include, but are not limited to: a home button, volume buttons, start button, and lock button.

Sensor assembly 214 includes one or more sensors for providing various aspects of status assessment for device 200 . For example, the sensor component 214 can detect the open/closed state of the device 200, the relative positioning of components, such as the display and keypad of the device 200, and the sensor component 214 can also detect a change in the position of the device 200 or a component of the device 200 , the presence or absence of user contact with the device 200 , the device 200 orientation or acceleration/deceleration and the temperature change of the device 200 . The sensor assembly 214 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact. Sensor assembly 214 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor component 214 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor or a temperature sensor.

The communication component 216 is configured to facilitate wired or wireless communication between the apparatus 200 and other devices. The device 200 can access wireless networks based on communication standards, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 216 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 216 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, Infrared Data Association (IrDA) technology, Ultra Wide Band (UWB) technology, Bluetooth (BT) technology and other technologies.

In an exemplary embodiment, apparatus 200 may be programmed by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable A gate array (FPGA), controller, microcontroller, microprocessor or other electronic component implementation for performing the methods described above.

In an exemplary embodiment, there is also provided a non-transitory computer-readable storage medium including instructions, such as the memory 204 including instructions, which can be executed by the processor 220 of the device 200 to implement the above method. For example, the non-transitory computer readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.

It can be understood that "plurality" in the present disclosure refers to two or more, and other quantifiers are similar. "And/or" describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and/or B may indicate: A exists alone, A and B exist simultaneously, and B exists independently. The character "/" generally indicates that the contextual objects are an "or" relationship. The singular forms "a", "said" and "the" are also intended to include the plural unless the context clearly dictates otherwise.

It can be further understood that the terms "first", "second", etc. are used to describe various information, but the information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another, and do not imply a specific order or degree of importance. In fact, expressions such as "first" and "second" can be used interchangeably. For example, without departing from the scope of the present disclosure, first information may also be called second information, and similarly, second information may also be called first information.

It can be further understood that although operations are described in a specific order in the drawings in the embodiments of the present disclosure, it should not be understood as requiring that these operations be performed in the specific order shown or in a serial order, or that Perform all operations shown to obtain the desired result. In certain circumstances, multitasking and parallel processing may be advantageous.

Other embodiments of the present disclosure will be readily apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any modification, use or adaptation of the present disclosure, and these modifications, uses or adaptations follow the general principles of the present disclosure and include common knowledge or conventional technical means in the technical field not disclosed in the present disclosure .

It should be understood that the present disclosure is not limited to the precise constructions which have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the scope of the appended claims.

Claims (16)

1. A method for determining charging time, characterized in that the method comprises: Obtain the charging parameters of the battery; Determine the charging phase of the battery at the current moment, the charging phase includes a constant current charging phase or a constant voltage charging phase; determining a first charging time of the battery in the constant current charging phase based on the charging parameters, and determining a second charging time of the battery in the constant voltage charging phase based on the charging parameters; Based on the first charging time and the second charging time, a charging time of the battery is determined. 2. The method according to claim 1, wherein the determining the first charging time of the battery in the constant current charging phase based on the charging parameters comprises: In response to determining that the battery is in the constant current charging phase and determining to start the multi-stage constant current charging of the battery, determine the constant current corrected charging current and the constant voltage charging phase when the battery is charged in the multi-stage constant current charging phase Constant voltage initial charging current during charging; Based on the charging parameters, the constant current correction charging current and the constant voltage initial charging current, a first charging time of the battery in the constant current charging phase is determined. 3. The method according to claim 2, wherein the charging parameters include full charge capacity, remaining capacity and charging temperature; The determining the first charging time of the battery in the constant current charging phase based on the charging parameters, the constant current corrected charging current and the constant voltage initial charging current includes: Based on the charging temperature and the constant-voltage initial charging current, determine the amount to be charged in the constant-voltage charging phase of the battery; Determining the amount to be charged of the battery in the multi-stage constant current charging stage based on the amount to be charged in the constant voltage charging stage, the full charge capacity and the remaining capacity; The first charging time of the battery in the constant current charging phase is determined according to the amount to be charged in the multi-stage constant current charging phase and the constant current correction charging current. 4. The method according to claim 1, wherein the determining the first charging time of the battery in the constant current charging phase based on the charging parameters comprises: In response to determining that the battery is in the constant current charging phase, and determining that the multi-stage constant current charging of the battery is not enabled, determine a constant current initial charging current when the battery is charged in the constant current phase; Based on the charging parameters and the initial constant current charging current, the first charging time of the battery in the constant current charging phase is determined. 5. The method according to claim 4, wherein the charging parameters include full capacity, remaining capacity and charging temperature; The determining the first charging time of the battery in the constant current charging phase based on the charging parameters and the constant current initial charging current includes: Based on the charging temperature and the constant current initial charging current, determine the amount to be charged in the constant voltage charging phase of the battery; determining the amount to be charged of the battery in the constant current charging stage based on the amount to be charged in the constant voltage charging stage, the full charge capacity, and the remaining capacity; The first charging time of the battery in the constant current charging phase is determined according to the amount to be charged in the constant current charging phase and the constant current initial charging current. 6. The method according to claim 1, wherein the charging parameters include charging temperature, float voltage change parameters, cut-off current change parameters, and errata constants; The determining the second charging time of the battery in the constant voltage charging phase based on the charging parameters includes: Based on the charging temperature and the constant voltage initial charging current when the battery is charged in the constant voltage charging phase, determine the constant voltage reference charging time corresponding to the battery in the constant voltage charging phase; According to the floating charge voltage change parameter, the cut-off current change parameter and the errata constant, determine a time correction factor corresponding to the battery in the constant voltage charging stage; The constant voltage reference charging time is corrected based on the time correction factor to obtain a second charging time of the battery in the constant voltage charging phase. 7. The method according to claim 6, characterized in that, said floating charge voltage change parameters include float charge voltage increment, float charge voltage decrement and reference float charge voltage; said cut-off current change parameters include cut-off current increase amount, cut-off current decrement and reference cut-off current; The determining the time correction factor corresponding to the battery in the constant voltage charging stage according to the floating charge voltage change parameter, the cut-off current change parameter and the errata constant includes: determining a float voltage variation ratio according to the reference float voltage, the float voltage increment, and the float voltage decrement; determining a cut-off current change ratio according to the reference cut-off current, the cut-off current increment and the cut-off current decrement; Based on the floating charge voltage change ratio, the cut-off current change ratio, and the errata constant, a time correction factor corresponding to the constant voltage and constant voltage charging phase of the battery is determined. 8. A device for determining charging time, characterized in that the device comprises: An acquisition module, configured to acquire charging parameters of the battery; A determining module, configured to determine the charging stage of the battery at the current moment, the charging stage includes a constant current charging stage or a constant voltage charging stage; based on the charging parameters, determine the first charge of the battery in the constant current charging stage time, and determine the second charging time of the battery in the constant voltage charging phase based on the charging parameters; determine the charging time of the battery based on the first charging time and the second charging time. 9. The device of claim 8, wherein: The determination module is specifically configured to, in response to determining that the battery is in the constant current charging phase and determining to start the multi-stage constant current charging of the battery, determine the constant current when the battery is charged in the multi-stage constant current charging phase Correcting the charging current and the constant-voltage initial charging current during the constant-voltage charging phase; based on the charging parameters, the constant-current corrected charging current, and the constant-voltage initial charging current, it is determined that the battery is charging at a constant current Phase 1 charge time. 10. The device according to claim 9, wherein the charging parameters include full charge capacity, remaining capacity and charging temperature; The determination module is specifically further configured to determine the amount to be charged in the constant voltage charging phase of the battery based on the charging temperature and the initial constant voltage charging current; based on the amount to be charged in the constant voltage charging phase, the The full charge capacity and the remaining capacity are used to determine the amount to be charged of the battery in the multi-stage constant current charging stage; according to the amount to be charged in the multi-stage constant current charging stage and the constant current correction current, it is determined that the battery is charged in the constant current charging stage. The first charging time of the flow charging phase. 11. The apparatus of claim 8, wherein: The determining module is specifically configured to, in response to determining that the battery is in the constant current charging phase and determining that the multi-stage constant current charging of the battery is not enabled, to determine the constant current start when the battery is charged in the constant current phase Charging current: based on the charging parameters and the constant current initial charging current, determine the first charging time of the battery in the constant current charging phase. 12. The device according to claim 11, wherein the charging parameters include full capacity, remaining capacity and charging temperature; The determination module is specifically further configured to determine the amount to be charged during the constant voltage charging phase of the battery based on the charging temperature and the initial constant current charging current; based on the amount to be charged during the constant voltage charging phase, the According to the full charge capacity and the remaining capacity, determine the amount to be charged of the battery in the constant current charging stage; according to the amount to be charged in the constant current charging stage and the constant current initial charging current, determine the The first charging time of the charging phase. 13. The device according to claim 8, wherein the charging parameters include charging temperature, float voltage change parameters, cut-off current change parameters, and errata constants; The determining module is further configured to determine the corresponding constant voltage reference charge of the battery in the constant voltage charging stage based on the charging temperature and the constant voltage initial charging current when the battery is charged in the constant voltage charging stage. Time; according to the floating charge voltage change parameter, the cut-off current change parameter and the errata constant, determine the time correction factor corresponding to the battery in the constant voltage charging stage; based on the time correction factor, the constant voltage The reference charging time is corrected to obtain the second charging time of the battery in the constant voltage charging phase. 14. The device according to claim 13, characterized in that, the floating charge voltage change parameters include float charge voltage increment, float charge voltage decrement and reference float charge voltage; the cut-off current change parameters include cut-off current increase amount, cut-off current decrement and reference cut-off current; The determination module is specifically further configured to determine a floating charge voltage variation ratio according to the reference floating charge voltage, the float charge voltage increment, and the float charge voltage decrement; according to the reference cut-off current, the cut-off The current increment and the cut-off current decrement determine the cut-off current change ratio; based on the floating charge voltage change ratio, the cut-off current change ratio and the errata constant, determine the battery in the constant voltage and constant voltage charging stage. The corresponding time correction factor. 15. A device for determining charging time, comprising: processor; memory for storing processor-executable instructions; Wherein, the processor is configured to: execute the method for determining the charging time according to any one of claims 1-7. 16. A non-transitory computer-readable storage medium, characterized in that when the instructions in the storage medium are executed by the processor of the terminal, the terminal can perform the charging according to any one of claims 1-7 method of determining time.

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