CN117916606A

CN117916606A - Battery state determining method, device and storage medium

Info

Publication number: CN117916606A
Application number: CN202280004392.1A
Authority: CN
Inventors: 王兴成
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2022-05-12
Filing date: 2022-05-12
Publication date: 2024-04-19
Also published as: WO2023216192A1

Abstract

The disclosure relates to a battery state determining method, a battery state determining device and a storage medium, which are applied to a terminal. The method for determining the battery state comprises the following steps: acquiring charge and discharge related parameters of a battery of a terminal in preset time, determining corresponding current battery performance parameters according to the charge and discharge related parameters, determining a change state of the current battery performance parameters based on the preset battery performance parameters, judging whether the change state meets preset change conditions, and judging that a battery cell in the current battery is a target battery cell when the change state does not meet the preset change conditions.

Description

Battery state determining method, device and storage medium

Technical Field

The disclosure relates to the technical field of battery encryption, and in particular relates to a battery state determining method, a battery state determining device and a storage medium.

Background

In the related art, in order to protect a battery used by a terminal, the battery used by the terminal is generally encrypted. In the related art, an over-encryption IC (INTEGRATED CIRCUIT ) encrypts a battery, and the encryption IC is typically placed on a protection board. The encryption IC realizes the encryption identification of the battery through an encryption algorithm. However, the conventional encryption algorithm cannot encrypt the battery cell. When the battery replaces a third-party battery cell, the original factory protection board is still used, so that the encryption IC can identify the battery by encrypting the battery, and the protection of the battery cell is not facilitated.

Disclosure of Invention

To overcome the problems in the related art, the present disclosure provides a battery state determining method, apparatus, and storage medium.

According to a first aspect of embodiments of the present disclosure, there is provided a battery state determining method, applied to a terminal, the determining method including:

Acquiring charge and discharge related parameters of a battery of the terminal in a preset time;

Determining corresponding current battery performance parameters according to the charge-discharge related parameters;

Determining a change state of the current battery performance parameter based on a preset battery performance parameter, and judging whether the change state meets a preset change condition or not;

and if the change state does not accord with the preset change condition, judging that the current battery cell in the battery is a target battery cell.

In an exemplary embodiment, after the determining that the current cell in the battery is the target cell, the method further includes:

obtaining the maximum charge and discharge power corresponding to the target battery cell;

And carrying out charge and discharge control on the target battery cell based on the maximum charge and discharge power.

In an exemplary embodiment, the obtaining the maximum charge and discharge power corresponding to the target battery cell includes:

Acquiring a target battery performance parameter of the target battery cell;

and determining the maximum charge and discharge power of the target battery core according to the target battery performance parameter.

In an exemplary embodiment, the determining method further includes:

And after a terminal starting instruction is detected, entering the step of acquiring charge and discharge related parameters of a battery of the terminal in a preset time to judge whether the battery cell is the target battery cell or not.

In an exemplary embodiment, the determining method further includes:

And after the cell identification instruction is detected, entering the step of acquiring charge and discharge related parameters of the battery of the terminal in a preset time to judge whether the cell is the target cell.

In an exemplary embodiment, the determining the change state of the current battery performance parameter based on the preset battery performance parameter and determining whether the change state meets the preset change condition includes:

Determining a plurality of variation characterization values of the current battery performance parameter based on a preset battery performance parameter;

Judging whether the sum of the change characterization values is in a preset threshold range or not;

if yes, judging that the change state meets the preset change condition.

Determining a plurality of change characterization curves of the current battery performance parameters based on preset battery performance parameters;

judging whether the change characterization curves accord with a preset change trend or not;

if yes, judging that the change state meets the preset change condition.

In an exemplary embodiment, the charge-discharge related parameter information includes: voltage, and/or current, and/or temperature.

In an exemplary embodiment, the battery performance parameters include: resistance and/or capacitance.

In an exemplary embodiment, the determining method further includes:

Detecting whether a cell reset instruction is received;

And if the change state is judged to be not in accordance with the preset change condition and the cell resetting instruction is not received, judging that the current cell in the battery is a target cell.

In an exemplary embodiment, the detecting whether the cell reset instruction is received further includes:

If the cell resetting instruction is received, acquiring the latest battery performance parameter in the cell resetting instruction;

and re-determining the preset change condition according to the latest battery performance parameter.

According to a second aspect of embodiments of the present disclosure, there is provided a determining apparatus of a battery state, applied to a terminal, the determining apparatus including:

the acquisition module is configured to acquire charge and discharge related parameters of a battery of the terminal in preset time;

The first determining module is configured to determine corresponding current battery performance parameters according to the charge-discharge related parameters;

the second determining module is configured to determine a change state of the current battery performance parameter based on a preset battery performance parameter and judge whether the change state meets a preset change condition or not;

And the third determining module is configured to determine that the current battery cell in the battery is the target battery cell if the change state does not meet the preset change condition.

According to a third aspect of the embodiments of the present disclosure, there is provided a battery state determining apparatus including:

A processor;

A memory for storing processor-executable instructions;

Wherein the processor is configured to perform the method according to any of the first aspects of the embodiments of the present disclosure.

According to a fourth aspect of embodiments of the present disclosure, there is provided a non-transitory computer readable storage medium, which when executed by a processor of an apparatus, causes the apparatus to perform the method according to any one of the first aspects of embodiments of the present disclosure.

The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects: the state of the battery can be accurately determined, the identification of the battery cell can be realized, and whether the battery cell of the battery is replaced or not can be determined by determining whether the battery cell in the current battery is a target battery cell or not, so that the battery can be better protected.

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 disclosure.

Drawings

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

FIG. 1 is a flowchart illustrating a method of determining a battery state according to an exemplary embodiment;

FIG. 2 is a schematic diagram of a battery model shown according to an exemplary embodiment;

Fig. 3 is a flowchart exemplarily showing a method of determining a change state of the current battery performance parameter and judging whether the change state meets a preset change condition in step S103;

Fig. 4 is a flowchart exemplarily showing a method of determining a change state of the current battery performance parameter and judging whether the change state meets a preset change condition in step S103;

FIG. 5 is a flowchart illustrating a method of battery state determination according to an exemplary embodiment;

fig. 6 is a block diagram showing a battery state determining apparatus according to an exemplary embodiment;

fig. 7 is a block diagram illustrating a battery state determining apparatus according to an exemplary embodiment.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers 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 invention. Rather, they are merely examples of apparatus and methods consistent with aspects of the invention as detailed in the accompanying claims.

In an exemplary embodiment of the present disclosure, a battery state determining method is provided and applied to a terminal, where the terminal includes an electronic device having a battery structure, such as a mobile phone, a tablet, and an intelligent home appliance. Fig. 1 is a flowchart illustrating a battery state determining method according to an exemplary embodiment, and as shown in fig. 1, the battery state determining method includes the steps of:

Step S101: acquiring charge and discharge related parameters of a battery of a terminal in a preset time;

Step S102: determining corresponding current battery performance parameters according to the charge-discharge related parameters;

Step S103: determining the change state of the current battery performance parameter based on the preset battery performance parameter, and judging whether the change state meets the preset change condition or not;

Step S104: if the change state does not meet the preset change condition, the current battery cell is judged to be the target battery cell.

In an exemplary embodiment of the present disclosure, in order to overcome the disadvantage that the battery cell cannot be identified in the related art, a battery state determining method is provided to identify the state of the battery cell. Acquiring charge and discharge related parameters of a battery of a terminal in preset time, determining corresponding current battery performance parameters according to the charge and discharge related parameters, determining a change state of the current battery performance parameters based on the preset battery performance parameters, judging whether the change state meets preset change conditions, and if the change state does not meet the preset change conditions, judging that a battery cell in the current battery is a target battery cell, namely that the battery cell in the current battery is replaced.

In step S101, the charge-discharge related parameter may be a parameter of the battery in a charge-discharge state, and may include, for example, voltage, current, and/or temperature. The number and the types of the charge-discharge related parameters can be set according to actual requirements. The charge-discharge related parameter information of the battery can be obtained through the encryption IC of the battery, and the obtained charge-discharge related parameter information data is stored and filtered.

In an example, when the charge-discharge related parameters are acquired by the encryption IC, a processor that has a voltage acquisition port, a RAM (random access memory ) and other memories and is capable of running a filtering algorithm may be integrated in the encryption IC; the processor with the voltage acquisition port, the RAM and the processor capable of running the filtering algorithm can be respectively integrated into the encryption IC; the charge and discharge related parameters of the battery in the fuel gauge can also be read directly through IIC (Inter-INTEGRATED CIRCUIT, integrated circuit bus).

In step S102, the battery performance parameters include parameters describing battery performance or characteristics, such as resistance, capacitance, and the like. As shown in fig. 2, fig. 2 illustrates a battery model 200 provided by an exemplary embodiment of the present disclosure, the battery model 200 including battery performance parameters that characterize battery characteristics or performance, such as, for example, battery performance parameters including resistances R0, R1, and R2 and capacitances C1 and C2. The corresponding current battery performance parameters, the resistors R0, R1 and R2 and the capacitors C1 and C2 are determined by acquiring a plurality of charge-discharge related parameters of the current battery in a charge-discharge state, such as a plurality of information of voltage, current and/or temperature. The plurality of parameter values in the current battery performance parameter corresponding to the plurality of charge-discharge related parameters may be determined according to the plurality of charge-discharge related parameters in any manner.

For example, as shown in the battery model of fig. 2, a plurality of charge-discharge related parameters of the battery may be acquired within a preset time, for example, a plurality of voltage, current and/or temperature information may be acquired. The values of the parameters in the battery model shown in fig. 2, such as the resistance values of the resistors R0, R1 and R2, and the capacitance values of the capacitors C1 and C2, are identified according to the forgetting factor recursive least square method to determine the battery performance parameters of the battery.

In step S103, the preset battery performance parameter is a battery performance parameter when the battery cell in the battery is a preset battery cell, and the preset battery cell is a battery cell when the battery cell is not replaced, for example, a factory battery cell. The target battery cell is a third party battery cell, and when the battery cell of the battery is replaced by the third party battery cell, the change state of the battery performance parameter is different from the change state of the battery performance parameter before the battery cell is replaced, for example, the change state of the battery performance parameter of a preset battery cell.

The preset change condition is a battery performance parameter change state of the preset battery cell. Because the corresponding battery performance parameters of different battery cells are different, whether the change state of the current battery performance parameters accords with preset change conditions is determined according to the parameter values of the resistors R0, R1 and R2 and the capacitors C1 and C2, so as to accurately determine whether the battery cell of the battery is a target battery cell or not and accurately determine the state of the battery.

In step S104, when the battery cell is the preset battery cell, the change state of the battery performance parameter meets the preset change condition, and therefore, when the change state of the battery performance parameter does not meet the preset change condition, the battery cell can be determined as the target battery cell.

In an exemplary embodiment of the disclosure, a charge-discharge related parameter of a battery of a terminal in a preset time is obtained, a corresponding current battery performance parameter is determined according to the charge-discharge related parameter, a change state of the current battery performance parameter is determined based on the preset battery performance parameter, whether the change state meets a preset change condition is judged, and when the change state does not meet the preset change condition, a battery cell in the current battery is judged to be a target battery cell. The state of the battery can be accurately determined, the identification of the battery core can be realized, whether the battery core of the battery is replaced or not is determined, and the battery can be better protected.

In an exemplary embodiment, after determining that the current battery cell is the target battery cell, the maximum charge and discharge power corresponding to the target battery cell is obtained, and charge and discharge control is performed on the target battery cell based on the maximum charge and discharge power.

When the battery core of the battery is the target battery core, that is, the battery core of the battery is replaced by the third party battery core, the maximum charge and discharge power of the target battery core is obtained, for example, the configuration information of the target battery core is obtained, and the initial maximum charge and discharge power is obtained. And carrying out charge and discharge control on the target battery cell based on the maximum charge and discharge power so as to prevent the phenomenon that the battery is damaged due to overhigh charge and discharge power. If the maximum charge and discharge power of the target battery cell is smaller than the maximum charge and discharge power of a preset battery cell, such as a battery cell of a factory, the charge and discharge power of the target battery cell is used as the charge and discharge power of the battery to work; and if the maximum charge and discharge power of the target battery core is larger than the maximum charge and discharge power of the preset battery core, the charge and discharge power of the preset battery core is used as the charge and discharge power of the battery to work.

In an example, the maximum charge and discharge power of the preset battery cell is denoted as a, the maximum charge and discharge power of the target battery cell is denoted as b, and if a > b, the charge and discharge power of the target battery cell is used as the charge and discharge power of the battery to operate, i.e. the charge and discharge power of the battery is denoted as b; if a < b, the charging and discharging power of the preset battery cell is used as the charging and discharging power of the battery, namely the charging and discharging power of the battery is a.

In an exemplary embodiment, the maximum charge and discharge power corresponding to the target battery cell is obtained, and the maximum charge and discharge power of the target battery cell may be determined by obtaining the target battery performance parameter of the target battery cell and according to the target battery performance parameter. For example, through a battery model as shown in fig. 2, a plurality of parameter values corresponding to the target battery cell, such as resistance values of resistors R0, R1 and R2, and capacitance values of capacitors C1 and C2, are obtained to determine the battery performance parameter of the target battery cell, and then the maximum charge and discharge power of the target battery cell is determined in combination with the use time of the resistors and the capacitors.

In an exemplary embodiment, the method for determining the battery state may be performed after the terminal power-on command is detected, and after the terminal power-on command is detected, the method enters a step of acquiring the charge-discharge related parameters of the battery of the terminal within a preset time to determine whether the battery cell is a target battery cell. The method for determining the battery state can also be executed after the battery cell identification instruction is detected, for example, a battery state determination option in the terminal system is used, when a user opens the option, a battery cell identification instruction is issued, and when the terminal detects the battery cell identification instruction, a step of acquiring charge and discharge related parameters of a battery of the terminal in a preset time is entered to judge whether the battery cell is a target battery cell or not. The user can set the option to open automatically and set the automatic opening time.

In an exemplary embodiment, fig. 3 is a flowchart schematically showing a method for determining a change state of a current battery performance parameter in step S103 and determining whether the change state meets a preset change condition, as shown in fig. 3, including the steps of:

Step S301: determining a plurality of variation characterization values of the current battery performance parameter based on the preset battery performance parameter;

step S302: judging whether the sum of the change characterization values is in a preset threshold range or not;

Step S303: if yes, the change state is judged to be in accordance with the preset change condition.

The preset battery performance parameter is a battery performance parameter of a preset battery cell, and the preset battery cell is a battery cell which is not replaced, such as a battery cell of a factory. The plurality of change characterization values of the current battery performance parameter are calculated by parameter values representing the battery performance, the change characterization values can be used for describing the change states of the battery performance parameter, and the change characterization values can be redundancy values corresponding to the parameter values of the battery performance parameter. And when the sum of the variation characterization values is judged to be in the preset threshold range, judging that the variation accords with the preset variation condition.

In the exemplary embodiment of the present disclosure, the determination of the variation characterization value corresponding to the parameter value corresponding to the plurality of battery performance parameters in the battery model shown in fig. 2 is taken as an example. And obtaining charge and discharge related parameters at different moments within a preset time length. For example, when the charge-discharge related parameters include current, voltage and temperature, obtaining the charge-discharge related parameters at N different times may include current I1 at time K1, current I2 at time V1 and temperature T1, K2, voltage V2 and temperature T2, and so on, current In at time Kn, voltage Vn and temperature Tn. The plurality of battery performance parameters, resistors R0, R1 and R2 and capacitors C1 and C2 at N different times In the battery model shown In fig. 2 are identified according to a forgetting factor recursive least square method, corresponding parameter values, for example, resistors R01, R11 and R21 and capacitors C11 and C21 at K1 are identified according to current I1 at K1, voltage V1 and temperature T1, resistors R02, R12 and R22 and capacitors C12 and C22 at K2 are identified according to current I2 at K2, voltage V2 and temperature T2, and so on, and resistors R0N, R1N and R2N and capacitors C1N and C2N at Kn are identified according to current In at Kn, voltage Vn and temperature Tn.

And correspondingly determining the variation characterization values at different moments according to the parameter values of the battery performance parameters at different moments. For example, the change characterization value A1 at the time of K1 is determined from the resistors R01, R11 and R21 and the capacitors C11 and C21 at the time of K1, the change characterization value A2 at the time of K2 is determined from the resistors R02, R12 and R22 and the capacitors C12 and C22 at the time of K2, and so on, and the change characterization value An at the time of Kn is determined from the resistors R0n, R1n and R2n and the capacitors C1n and C2n at the time of Kn. The change characterization value may be determined in any manner that enables the determination of a change characterization value, for example, by the formula: ai=g (R0 i, R1i, R2i, C1i, and C2 i), where Ai is a change characterization value at the i-th time, i is a positive integer greater than or equal to 1 and less than or equal to n, and G is a redundancy function.

After determining the N variation characterization values at different moments, determining whether the sum of the N variation characterization values falls within a preset threshold range. The preset threshold range can be determined according to the characteristics and the performances of the battery cells, the characteristics and the performances of different battery cells are different, and the corresponding preset threshold ranges are different. When the battery core of the battery is not replaced, a preset threshold range is corresponding to the characteristics and the performances of the current battery core. When the battery core is replaced, the characteristics and the performances of the replaced battery core are different corresponding to the preset threshold range, and if the sum of the determined multiple variation characterization values falls into the preset threshold range, namely, the variation state is judged to be in accordance with the variation condition, the battery core of the battery is determined to be the preset battery core, namely, the battery core which is not replaced, such as the battery core of the original factory, so that the identification of the battery core is realized.

In an exemplary embodiment, fig. 4 is a flowchart schematically showing a method for determining a change state of a current battery performance parameter in step S103 and determining whether the change state meets a preset change condition, as shown in fig. 4, including the steps of:

step S401: determining a plurality of change characterization value curves of the current battery performance parameters based on preset battery performance parameters;

step S402: judging whether the multiple variation characterization value curves accord with a preset variation trend or not;

Step S403: if yes, the change state is judged to be in accordance with the preset change condition.

The determination manner of the change characterization value is the same as that of the change characterization value in step S301, and will not be described herein.

And determining a curve drawn by the plurality of change characterization values according to the plurality of change characterization values, wherein the drawn curve is the change characterization value curve. Judging whether the change characterization value curves accord with a preset change trend or not, and when the battery core of the battery is not replaced, enabling the performance of the battery to be in a stable state, so that the change trend of the change characterization value curves is stable and is the preset change trend. Because the performance parameters of different battery cells are different, after the battery cells are replaced, the determined battery performance parameters are different within a preset time period, corresponding change characterization values are also different, and the change trend of the change characterization value curves is also different from the preset change trend. Therefore, when the change trend of the change characterization value curves accords with the preset change trend, namely, the change state accords with the preset change condition, the battery cell is determined to be the preset battery cell, namely, the battery cell which is not replaced, such as the battery cell of the original factory, so as to realize the identification of the battery cell.

In an exemplary embodiment, the method for determining a battery state further includes: detecting whether a cell reset instruction is received; if the change state is judged to be not in accordance with the preset change condition and the cell resetting instruction is not received, the cell in the current battery is judged to be the target cell.

The battery core resetting instruction is an instruction sent after a user actively replaces the battery core, when the user actively replaces the battery core of the battery, the processor of the terminal can acquire that the battery is replaced in a signal sending mode, at the moment, the processor needs to determine the battery performance parameter of the replaced battery core, the latest replaced battery core is taken as a preset battery core, a preset change condition is determined according to the latest replaced battery core, and the latest replaced battery core is taken as a basis for subsequently determining the state of the battery. Therefore, when the change state of the battery performance parameter does not meet the preset change condition, if the cell resetting instruction is not received, the cell in the current battery can be judged to be the target cell. Through the cell reset instruction, when a user actively changes the cell, the state of the battery after changing the cell is determined, so that the real-time identification of the cell of the battery and the protection of the battery are realized.

In an exemplary embodiment, detecting whether a cell reset instruction is received further comprises: if a cell reset instruction is received, acquiring the latest battery performance parameter in the cell reset instruction; and re-determining the preset change condition according to the latest battery performance parameters.

When a cell reset instruction is received, the cell of the battery is replaced, the state of the battery is determined by the replaced cell, the performance parameters of the battery after replacement can be obtained by analyzing the latest battery performance parameters in the reset instruction, and the battery performance parameters after replacement, including resistance, capacitance and the like, are determined, so that the battery performance parameter change characterization value of the cell after replacement, namely the preset change condition, is determined, and when the method for determining the state of the battery is executed again, the real-time identification of the cell of the battery and the protection of the battery are realized by judging whether the change state of the battery performance parameters meets the latest preset change condition determined according to the latest battery performance parameters.

It should be noted that, the cell reset command may be sent at any step in the battery state determining process, and once the cell reset command is received, the predetermined change condition is started to be redetermined.

In an exemplary embodiment of the present disclosure, a method for determining a battery state is provided and applied to a terminal, and fig. 5 is a flowchart of a method for determining a battery state according to an exemplary embodiment, as shown in fig. 5, including the following steps:

Step S501: detecting a terminal starting instruction or detecting a battery cell identification instruction;

Step S502: acquiring charge and discharge related parameters of a battery of a terminal in a preset time;

the charge-discharge related parameters comprise the voltages, currents and/or temperatures at N times acquired within a preset duration.

Step S503: determining corresponding current battery performance parameters according to the charge-discharge related parameters;

The battery performance parameter may include the resistance and/or capacitance of the battery. And identifying a plurality of parameter value information of the battery performance parameters at N different moments according to the voltage, the current and/or the temperature at N different moments.

Step S504: determining a change state of the current battery performance parameter based on the preset battery performance parameter;

Step S505: determining whether the change state meets a preset change condition;

Judging whether the sum of the change characterization values is in a preset threshold range or not; or judging whether the change characterization value curves accord with the preset change trend.

If yes, go to step S512; if not, go to step S506.

Step S506: determining whether a cell reset instruction is received;

if yes, go to step S507; if not, step S509 is executed.

Step S507: acquiring the latest battery performance parameter in the battery core reset instruction;

step S508: and re-determining the preset change condition according to the latest battery performance parameters.

Step S509: judging the current battery cell as a target battery cell;

Step S510: obtaining the maximum charge and discharge power corresponding to the target battery cell;

and acquiring a target battery performance parameter of the target battery cell, and determining the maximum charge and discharge power of the target battery cell according to the target battery performance parameter.

Step S511: and carrying out charge and discharge control on the target battery cell based on the maximum charge and discharge power.

Step S512: the state of the battery is re-determined.

It should be noted that, any step in the battery state determining process may receive the cell reset command, and once the cell reset command is received, the predetermined change condition is started to be redetermined.

In the exemplary embodiment of the disclosure, the provided battery state determining method can accurately determine the state of the battery, can identify the battery core, and can better protect the battery by determining whether the battery core of the battery is a target battery core or not to determine whether the battery core of the battery is replaced or not.

In an exemplary embodiment of the present disclosure, a battery state determining apparatus is provided and applied to a terminal. Fig. 6 is a battery state determining apparatus according to an exemplary embodiment, as shown in fig. 6, the determining apparatus includes:

an obtaining module 601, configured to obtain a charge-discharge related parameter of a battery of the terminal within a preset time;

a first determining module 602 configured to determine a corresponding current battery performance parameter according to the charge-discharge related parameter;

a second determining module 603 configured to determine a change state of the current battery performance parameter based on a preset battery performance parameter, and determine whether the change state meets a preset change condition;

and a third determining module 604, configured to determine that the current cell in the battery is the target cell if the change state does not meet the preset change condition.

The specific manner in which the various modules perform the operations in the apparatus of the above embodiments have been described in detail in connection with the embodiments of the method, and will not be described in detail herein.

Fig. 7 is a block diagram illustrating a battery state determining apparatus 700 according to an exemplary embodiment when the battery state determining apparatus is a terminal.

Referring to fig. 7, an apparatus 700 may include one or more of the following components: a processing component 702, a memory 704, a power component 706, a multimedia component 708, an audio component 710, an input/output (I/O) interface 712, a sensor component 714, and a communication component 716.

The processing component 702 generally controls overall operation of the apparatus 700, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 702 may include one or more processors 720 to execute instructions to perform all or part of the steps of the methods described above. Further, the processing component 702 can include one or more modules that facilitate interaction between the processing component 702 and other components. For example, the processing component 702 may include a multimedia module to facilitate interaction between the multimedia component 708 and the processing component 702.

The memory 704 is configured to store various types of data to support operations at the apparatus 700. Examples of such data include instructions for any application or method operating on the apparatus 700, contact data, phonebook data, messages, pictures, videos, and the like. The memory 704 may be implemented by any type or combination of volatile or nonvolatile memory devices 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 supply component 706 provides power to the various components of the apparatus 700. The power components 706 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the device 700.

The multimedia component 708 includes a screen between the device 700 and the user that provides an output interface. 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 sense not only the boundary of a touch or slide action, but also the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 708 includes a front-facing camera and/or a rear-facing camera. The front-facing camera and/or the rear-facing camera may receive external multimedia data when the apparatus 700 is in an operational mode, such as a photographing mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

The audio component 710 is configured to output and/or input audio signals. For example, the audio component 710 includes a Microphone (MIC) configured to receive external audio signals when the device 700 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may be further stored in the memory 704 or transmitted via the communication component 716. In some embodiments, the audio component 710 further includes a speaker for outputting audio signals.

The I/O interface 712 provides an interface between the processing component 702 and peripheral interface modules, which may be a keyboard, click wheel, buttons, etc. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button.

The sensor assembly 714 includes one or more sensors for providing status assessment of various aspects of the apparatus 700. For example, the sensor assembly 714 may detect an on/off state of the device 700, a relative positioning of the components, such as a display and keypad of the device 700, a change in position of the device 700 or a component of the device 700, the presence or absence of user contact with the device 700, an orientation or acceleration/deceleration of the device 700, and a change in temperature of the device 700. The sensor assembly 714 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 714 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 714 may also include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 716 is configured to facilitate communication between the apparatus 700 and other devices in a wired or wireless manner. The apparatus 700 may access a wireless network based on a communication standard, such as WiFi,2G or 3G, or a combination thereof. In one exemplary embodiment, the communication component 716 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 716 further includes a Near Field Communication (NFC) module to facilitate short range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the apparatus 700 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic elements for executing the methods described above.

In an exemplary embodiment, a non-transitory computer readable storage medium is also provided, such as memory 704, including instructions executable by processor 720 of apparatus 700 to perform the above-described 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, etc.

A non-transitory computer readable storage medium, which when executed by a processor of an apparatus, causes the apparatus to perform a method of determining a battery state, the method comprising any of the methods described above.

Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.

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

Industrial applicability

The battery state determining method can accurately determine the state of the battery, can realize the identification of the battery core, so as to determine whether the battery core of the battery is replaced or not, and can better protect the battery.

Claims

A battery state determining method applied to a terminal, the determining method comprising:

Acquiring charge and discharge related parameters of a battery of the terminal in a preset time;

Determining corresponding current battery performance parameters according to the charge-discharge related parameters;

Determining a change state of the current battery performance parameter based on a preset battery performance parameter, and judging whether the change state meets a preset change condition or not;

and if the change state does not accord with the preset change condition, judging that the current battery cell in the battery is a target battery cell.
The battery state determination method according to claim 1, wherein after the determination that the cell in the battery is the target cell, further comprising:

obtaining the maximum charge and discharge power corresponding to the target battery cell;

And carrying out charge and discharge control on the target battery cell based on the maximum charge and discharge power.
The method for determining a battery state according to claim 2, wherein the obtaining the maximum charge/discharge power corresponding to the target cell includes:

Acquiring a target battery performance parameter of the target battery cell;

and determining the maximum charge and discharge power of the target battery core according to the target battery performance parameter.
The battery state determination method according to claim 1, characterized in that the determination method further comprises:

And after a terminal starting instruction is detected, entering the step of acquiring charge and discharge related parameters of a battery of the terminal in a preset time to judge whether the battery cell is the target battery cell or not.
The battery state determination method according to claim 1, characterized in that the determination method further comprises:

And after the cell identification instruction is detected, entering the step of acquiring charge and discharge related parameters of the battery of the terminal in a preset time to judge whether the cell is the target cell.
The battery state determining method according to claim 1, wherein the determining a change state of the current battery performance parameter based on a preset battery performance parameter and judging whether the change state meets a preset change condition includes:

Determining a plurality of variation characterization values of the current battery performance parameter based on a preset battery performance parameter;

Judging whether the sum of the change characterization values is in a preset threshold range or not;

if yes, judging that the change state meets the preset change condition.
The battery state determining method according to claim 1, wherein the determining a change state of the current battery performance parameter based on a preset battery performance parameter and judging whether the change state meets a preset change condition includes:

Determining a plurality of variation characterization value curves of the current battery performance parameters based on preset battery performance parameters;

judging whether the change characterization value curves accord with a preset change trend or not;

if yes, judging that the change state meets the preset change condition.
The battery state determination method according to claim 1, wherein the charge-discharge related parameter information includes: voltage, and/or current, and/or temperature.
The battery state determination method according to claim 1, wherein the battery performance parameters include: resistance and/or capacitance.
The battery state determination method according to claims 1 to 9, characterized in that the determination method further comprises:

Detecting whether a cell reset instruction is received;

And if the change state is judged to be not in accordance with the preset change condition and the cell resetting instruction is not received, judging that the current cell in the battery is a target cell.
The battery state determination method according to claim 10, wherein after the detecting whether the cell reset instruction is received, further comprising:

If the cell resetting instruction is received, acquiring the latest battery performance parameter in the cell resetting instruction;

and re-determining the preset change condition according to the latest battery performance parameter.
A battery state determining apparatus applied to a terminal, characterized in that the determining apparatus comprises:

the acquisition module is configured to acquire charge and discharge related parameters of a battery of the terminal in preset time;

The first determining module is configured to determine corresponding current battery performance parameters according to the charge-discharge related parameters;

the second determining module is configured to determine a change state of the current battery performance parameter based on a preset battery performance parameter and judge whether the change state meets a preset change condition or not;

And the third determining module is configured to determine that the current battery cell in the battery is the target battery cell if the change state does not meet the preset change condition.
A battery state determining apparatus, characterized by comprising:

A processor;

A memory for storing processor-executable instructions;

wherein the processor is configured to perform the method of any of claims 1-11.
A non-transitory computer readable storage medium, which when executed by a processor of an apparatus, causes the apparatus to perform the method of any of claims 1-11.