CN112858938A - Electric quantity calculation method and device, storage medium and electronic equipment - Google Patents
Electric quantity calculation method and device, storage medium and electronic equipment Download PDFInfo
- Publication number
- CN112858938A CN112858938A CN202110193630.5A CN202110193630A CN112858938A CN 112858938 A CN112858938 A CN 112858938A CN 202110193630 A CN202110193630 A CN 202110193630A CN 112858938 A CN112858938 A CN 112858938A
- Authority
- CN
- China
- Prior art keywords
- battery
- capacity
- charging
- calculating
- full charge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
- G01R31/387—Determining ampere-hour charge capacity or SoC
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
- G01R31/387—Determining ampere-hour charge capacity or SoC
- G01R31/388—Determining ampere-hour charge capacity or SoC involving voltage measurements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The application discloses an electric quantity calculation method, an electric quantity calculation device, a storage medium and electronic equipment. The method is applied to the electronic equipment, the electronic equipment comprises a battery, and the electric quantity calculation method comprises the following steps: when the battery starts to be charged, acquiring a first residual capacity of the battery; when the battery is fully charged, acquiring a first charging capacity of the battery, wherein the first charging capacity is the capacity of the battery charged in the process that the battery starts to be charged until the battery is fully charged; calculating a first full charge capacity of the battery according to the first residual capacity and the first charge capacity; and calculating the residual capacity of the battery according to the first full charge capacity. In the scheme of the application, the residual capacity is calculated by taking the actual full-charge capacity of the battery as a reference, and the method is not influenced by the increase of the internal resistance and can accurately calculate the residual capacity.
Description
Technical Field
The application belongs to the technical field of battery charging and discharging, and particularly relates to an electric quantity calculation method and device, a storage medium and electronic equipment.
Background
When the new battery is just put into use, the electronic equipment can accurately calculate the residual capacity. However, after repeated charging and discharging, the battery may be aged, so that the battery may be rapidly reduced after being fully charged, or may be suddenly turned off due to the fact that the actual power is lower than the remaining power displayed by the electronic device. This is because the increase of the internal resistance after the battery ages affects the calculation of the remaining capacity, and if the remaining capacity is calculated at this time by using the situation when the battery is just put into use, that is, without considering the situation of the increase of the internal resistance of the battery, the actual capacity is smaller than the calculated capacity, resulting in the problem that the calculation of the remaining capacity is inaccurate.
Disclosure of Invention
The embodiment of the application provides an electric quantity calculation method, an electric quantity calculation device, a storage medium and electronic equipment, and can solve the problem of inaccurate calculation of residual electric quantity caused by battery aging.
In a first aspect, an embodiment of the present application provides an electric quantity calculation method, which is applied to an electronic device, where the electronic device includes a battery, and the electric quantity calculation method includes:
when the battery starts to be charged, acquiring a first residual capacity of the battery;
when the battery is fully charged, acquiring first charging capacity of the battery, wherein the first charging capacity is the capacity of the battery charged in the process that the battery starts to be charged until the battery is fully charged;
calculating a first full charge capacity of the battery according to the first residual capacity and the first charge capacity;
and calculating the residual capacity of the battery according to the first full charge capacity.
In a second aspect, an embodiment of the present application provides an electric quantity calculation apparatus, which is applied to an electronic device, where the electronic device includes a battery, and the electric quantity calculation apparatus includes:
the first obtaining module is used for obtaining a first residual capacity of the battery when the battery starts to be charged;
the second acquisition module is used for acquiring first charging capacity of the battery when the battery is fully charged, wherein the first charging capacity is the capacity of the battery charged in the process from the beginning of charging the battery to the full charge;
a first calculation module for calculating a first full charge capacity of the battery according to the first remaining capacity and the first charge capacity;
and the second calculation module is used for calculating the residual electric quantity of the battery according to the first full charge capacity.
In a third aspect, an embodiment of the present application provides a storage medium, on which a computer program is stored, and when the computer program is executed on a computer, the computer is caused to execute the method provided by the embodiment of the present application.
In a fourth aspect, an embodiment of the present application further provides an electronic device, which includes a memory and a processor, where the processor is configured to execute the method provided in the embodiment of the present application by calling a computer program stored in the memory.
According to the method and the device, the actual full charge capacity of the battery is obtained, the full charge capacity is used as a full charge capacity reference, and the residual capacity is calculated. Since the full charge capacity is used as a reference for calculating the remaining capacity, the factor affected by the increase in the internal resistance is not used as a reference for calculating the remaining capacity. Therefore, the problem that the residual capacity is calculated inaccurately due to the aging internal resistance increase of the battery in the traditional residual capacity calculation mode is avoided. According to the scheme, the residual capacity is calculated by taking the actual full-charge capacity of the battery as a reference, the method is not affected by the increase of the internal resistance, and the residual capacity can be accurately calculated.
Drawings
The technical solutions and advantages of the present application will become apparent from the following detailed description of specific embodiments of the present application when taken in conjunction with the accompanying drawings.
Fig. 1 is a schematic flow chart of a power calculation method according to an embodiment of the present application.
Fig. 2 is another schematic flow chart of a power calculation method according to an embodiment of the present disclosure.
Fig. 3 to fig. 5 are schematic views of scenarios of an electric quantity calculation method according to an embodiment of the present application.
Fig. 6 is a schematic structural diagram of an electric quantity calculation device according to an embodiment of the present application.
Fig. 7 is a schematic structural diagram of an electronic device provided in an embodiment of the present application.
Fig. 8 is another schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
Referring to the drawings, wherein like reference numbers refer to like elements, the principles of the present application are illustrated as being implemented in a suitable computing environment. The following description is based on illustrated embodiments of the application and should not be taken as limiting the application with respect to other embodiments that are not detailed herein.
It is understood that the execution subject of the embodiment of the present application may be an electronic device such as a smart phone or a tablet computer.
Referring to fig. 1, fig. 1 is a schematic flow chart of a power calculation method according to an embodiment of the present application, where the flow chart may include:
101. when a battery starts to be charged, a first remaining capacity of the battery is acquired.
The Remaining capacity (RM) of the battery is the capacity of an energy storage device such as a storage battery Remaining after a certain period of use. The Full Charge Capacity (FCC) is a capacity of the battery when the battery is charged to a state where the cutoff voltage and the cutoff current are simultaneously triggered, and the capacity is defined as 100%. After the new battery is put into use, the aging internal resistance of the battery is increased after the battery is repeatedly charged and discharged. If the remaining capacity is calculated based on the situation immediately after the battery is put into use, regardless of the increase in the internal resistance of the battery, the actual full charge capacity is smaller than the full charge capacity immediately after the battery is put into use, and the actual capacity is smaller than the calculated capacity. Therefore, the situation that the electric quantity is rapidly reduced after the battery is fully charged or the situation that the actual electric quantity is lower than the residual electric quantity displayed by the electronic equipment, the electronic equipment is suddenly shut down, and the like, occurs. For example, when the battery reaches the full charge, the remaining capacity is 100%, and the actual remaining capacity is 98%. This results in a situation that the capacity of the battery drops greatly from 100% to 97% after the early battery starts to discharge. Or when the remaining power is about 5%, the user experience is affected by the sudden shutdown condition because the actual power is 0.
In the embodiment of the present application, when the battery is charged by using an external device, such as a wireless charging device, the electronic device may obtain the remaining capacity of the battery at that time, that is, the first remaining capacity.
102. When the battery is fully charged, acquiring a first charging capacity of the battery, wherein the first charging capacity is the capacity of the battery charged in the process from the beginning of charging the battery to the full charge.
When a battery is charged, it is considered that the battery is fully charged if the voltage and current of the battery reach a certain value, which is called cutoff voltage and cutoff current. For example, it can be set that when the charging voltage is 4.4V and the charging current is 200mA, the cut-off voltage and the cut-off current are reached, and the battery is considered to be fully charged. When the battery is fully charged, the electronic device may obtain a first charging capacity of the battery, which is a capacity charged to the battery during a process in which the battery starts to be charged until being fully charged.
103. A first full charge capacity of the battery is calculated based on the first remaining capacity and the first charge capacity.
In general, after the battery is put into use, the full charge capacity of a new battery is FCC ═ Qstart +. DELTA.q + RM, where Qstart is the difference between the capacity at the time of initial discharge and the maximum capacity of the battery, and in general, this value is zero in the case of full charge, and the maximum capacity Qmax of the battery is the design capacity value of the battery. Δ Q is the amount of charge that the battery has decreased during a period of time after the electronic device has been in use. The actual Qstart is not zero after the battery ages, but the Qstart is still treated as zero during the calculation, so the calculated full charge capacity is smaller than the actual capacity, resulting in the calculated remaining capacity being larger than the actual value. In the embodiment of the present application, since the battery capacity at each actual full charge is taken as the full charge capacity, the calculation of the remaining capacity is no longer affected by Qstart.
For example, after acquiring the first remaining capacity and the first charging capacity, the electronic device may calculate a first full charging capacity according to the first remaining capacity and the first charging capacity.
For example, the first remaining capacity obtained by the electronic device is 2000mAh, and the first charging capacity is 3500mAh, then the first full charging capacity may be calculated to be 5500 mAh.
As another example, the first remaining capacity obtained by the electronic device is 1500mAh, and the first charging capacity is 3900mAh, then the first full charging capacity may be calculated to be 5400 mAh.
104. And calculating the residual capacity of the battery according to the first full charge capacity.
The most widely used manner of estimating the remaining capacity is a manner of combining a Charge accumulation method with an Open Circuit Voltage (OCV) method, that is, a manner of remaining capacity (SOC) being remaining capacity/full Charge capacity. In order to calculate the remaining amount of electricity, the remaining capacity and the full charge capacity at that time need to be acquired. For example, after the battery is charged, the electronic device may obtain a first full charge capacity. After the battery consumes a part of the electric power for a while, the electronic device can calculate the remaining electric power according to the remaining capacity and the first full charge capacity after acquiring the remaining capacity and the first full charge capacity at the time.
For example, if the remaining capacity obtained by the electronic device at this time is 1750mAh and the first full charge capacity is 3500mAh, the remaining capacity may be calculated to be 50%.
For another example, if the remaining capacity obtained by the electronic device at this time is 700mAh and the first full charge capacity is 3500mAh, the remaining capacity may be calculated to be 20%.
It can be understood that, in the embodiment of the present application, the actual full charge capacity of the battery is obtained each time, the full charge capacity is taken as a full charge capacity reference, and then the remaining capacity is calculated according to the current remaining capacity and the full charge capacity. Since the full charge capacity is used as a reference for calculating the remaining capacity, the factor affected by the increase in the internal resistance is not used as a reference for calculating the remaining capacity. Therefore, the problem that the residual capacity is calculated inaccurately due to the aging internal resistance increase of the battery in the traditional residual capacity calculation mode is avoided. According to the scheme, the residual capacity is calculated by taking the actual full-charge capacity of the battery as a reference, the method is not affected by the increase of the internal resistance, and the residual capacity can be accurately calculated.
Referring to fig. 2, fig. 2 is another schematic flow chart of a power calculation method according to an embodiment of the present application, where the flow chart may include:
201. when a battery starts to be charged, a first remaining capacity of the battery is acquired.
202. When a battery is fully charged, a charging time is obtained, which is the time elapsed during which the battery starts to be charged until fully charged.
203. And acquiring a charging current.
204. A first charging capacity is determined based on the charging time and the charging current.
For example, when the battery is fully charged when the battery charge triggers the cutoff voltage and the cutoff current, the electronic device may obtain the time that elapses from the time the battery starts to be charged until it is fully charged, i.e., the charging time. Then, the electronic device may obtain the charging current during the period of time, and integrate the charging current to obtain a change value of the battery capacity during the charging process, i.e., the first charging capacity.
For example, the first charging capacity is Δ Q ═ idt, where ═ idt is the change in battery capacity after charge time t at current i. When the charging current is 800mA and the charging time is 30 minutes, the first charging capacity is
That is, the amount of capacity charged during the time elapsed from the start of charging the battery until the full charge was 400 mAh.
For another example, when the charging current is 1000mA and the charging time is 1 hour, the first charging capacity is
That is, the amount of capacity charged during the time elapsed from the start of charging the battery until the full charge was 1000 mAh.
205. And when the battery is not in a discharging state in the process of starting charging until the battery is fully charged, calculating the sum of the first residual capacity and the first charging capacity to obtain the first full charging capacity.
For example, when a user charges an electronic device using an external device, such as a wireless charging device, but does not use the electronic device, a battery is in a charging state and is not in a discharging state, and the amount of charge of the battery increases with the charging. After the electronic device obtains the first charging capacity, the sum of the first remaining capacity and the first charging capacity can be calculated to obtain a first full charging capacity.
For example, the first remaining capacity is 3000mAh, the first charge capacity is 400mAh after charging for 30 minutes at a charging current of 800mA, and the first full charge capacity is 3400 mAh.
In one embodiment, when the battery is in a discharging state in the process of starting charging of the battery until full charging, the discharge capacity of the battery is acquired, and the discharge capacity of the battery is the capacity released from the battery in the process of starting charging of the battery until full charging; a first full charge capacity of the battery is calculated based on the first remaining capacity, the first charge capacity, and the discharge capacity.
For example, when a user charges an electronic device using an external device, such as a wireless charging device, and uses the electronic device, the battery is in a charged and discharged state, and the amount of charge of the battery increases with the charging and decreases with the discharging. The electronic device may obtain a discharge capacity of the battery and then calculate a first full charge capacity of the battery based on the first remaining capacity, the first charge capacity, and the discharge capacity.
For example, if the first remaining capacity is 3000mAh, the charging is performed for 30 minutes at a charging current of 800mA, and the first charging capacity is 400mAh and the discharging capacity is 200mA after the discharging is performed for 30 minutes at a discharging current of 400mA, the first full charging capacity is 3200 mAh.
206. Acquiring a first depth of discharge of the battery; calculating a second remaining capacity of the battery according to the first depth of discharge; and calculating the residual capacity of the battery according to the second residual capacity and the first full charge capacity of the battery.
When the electronic equipment is in a standby state or a power-off state, the battery is regarded as standing still, and the capacity of the battery is not changed at the moment. For example, when the time when the electronic device is not used is more than 20 minutes, or the continuous current of the battery is less than 20mA, or the rate of change dV/dt of the battery voltage is less than 5uV/s, the battery may be considered to be stationary. Depth of discharge (DOD) represents the percentage of the amount of discharge of a battery to the rated capacity of the battery, which is the specified capacity of the battery at the time of design and production of the battery. The current common electricity estimation algorithm comprises a charge accumulation method and an open circuit voltage method. The open-circuit voltage method utilizes the characteristic that the open-circuit voltage of the lithium battery has a definite and monotonous corresponding relation with the charge quantity of the battery, and the battery charge quantity can be calculated if the accurate open-circuit voltage is obtained. Therefore, the open-circuit voltage values under different temperatures and different residual capacities can be obtained by off-line measurement to form a table. After the battery is installed in the electronic equipment, the form data can be called every time the power supply stopping state occurs, and the state of charge of the battery can be judged according to the measured open-circuit voltage. But this method must be used in the event of a circuit disconnection and after the battery has been left for a period of time.
The voltage versus charge can be obtained by first discharging the cell from a starting voltage to a cut-off voltage, for example from 4.4V to 3.0V, with a very small current, for example 0.01C. And then dividing the charge capacity by the design capacity or the maximum capacity value Qmax of the battery to obtain the discharge depth of the battery, so that the relation between the open-circuit voltage and the discharge depth can be obtained. Generally, in order to protect the battery, a voltage value is set as a shutdown voltage, and when the battery voltage drops to the set value, the battery is automatically shut down.
In the embodiment of the application, when the battery is still, the capacity of the battery is not changed, and the electronic device can directly read the voltage value of the battery as the open-circuit voltage value. And obtaining a first depth of discharge DOD1 according to the relation between the open-circuit voltage and the depth of discharge. The electronic device may then obtain a second depth of discharge DOD2, which is the depth of discharge when discharging to the shutdown voltage with the current in the current state. For example, the electronic device may look up a table to obtain that the internal resistance of the battery is R at the shutdown voltage, and the average discharge current is I at this time, and then may calculate an open-circuit voltage value at the shutdown voltage according to V ═ OCV + I × R, and then obtain the discharge depth at the shutdown voltage through a relationship between the open-circuit voltage and the discharge depth.
Finally, a third remaining capacity of the battery is calculated from RM ═ Qmax (DOD2-DOD 1).
For example, when the battery is at rest, the electronic device can directly read the voltage value of the battery as the open circuit voltage value of 4.0V, and the DOD1 can be 25% according to the relationship between the open circuit voltage and the discharge depth. Assuming that the design capacity of the Qmax battery is 4000mAh and the second depth of discharge is 80%, the third remaining capacity can be calculated as 2200mAh from RM — Qmax (DOD2-DOD 1).
After calculating the second remaining capacity and the first full charge capacity, the electronic device may calculate the remaining capacity according to the second remaining capacity and the first full charge capacity.
For example, if the second remaining capacity obtained by the electronic device at this time is 1750mAh and the first full charge capacity is 3500mAh, the remaining capacity may be calculated to be 50%.
For another example, if the second remaining capacity obtained by the electronic device at this time is 700mAh and the first full charge capacity is 3500mAh, the remaining capacity may be calculated to be 20%.
In one embodiment, when the battery capacity changes, a third depth of discharge is obtained, and the third depth of discharge is a real-time depth of discharge; acquiring a fourth depth of discharge; and calculating a third residual capacity of the battery according to the third depth of discharge and the fourth depth of discharge.
When the battery is in a discharge state, the open circuit voltage of the battery is constantly changing because the capacity is constantly changing. At this time, if the discharge depth is directly obtained according to the read voltage value of the battery and then the remaining power is calculated, the problem of inaccurate calculation of the remaining power is caused. Therefore, at this time, the real-time electric quantity needs to be continuously updated to obtain the real-time depth of discharge, i.e., the third depth of discharge. For example, after the battery starts to discharge, the initial voltage V0 of the battery is directly read, the initial voltage V0 is used as the initial open-circuit voltage OCV0, and the initial depth of discharge DOD0 is obtained according to the relationship between the open-circuit voltage and the depth of discharge. During the charging process, charge integration is continuously performed on the charging capacity value to obtain charge integration delta Q ═ idt. The real-time depth of discharge, i.e., the third depth of discharge DOD3 ═ DOD0- Δ Q/Qmax, is then calculated. Then, the electronic device may obtain a fourth depth of discharge DOD4, which is the depth of discharge when discharging to the shutdown voltage with the current in the current state. Finally, a third remaining capacity of the battery is calculated from RM ═ Qmax (DOD4-DOD 3).
For example, when the battery is in an electrical discharge state, the electronic device may read that the initial voltage value V0 ═ OCV0 ═ 3.5V of the battery, and the DOD0 may be found to be 60% from the relationship between the open circuit voltage and the depth of discharge. And then, continuously performing charge integration on the charging capacity value in the charging process to obtain a charge integration of 2000 mAh. Assuming that the design capacity of the Qmax battery is 4000mAh and the fourth depth of discharge is 80%, the third remaining capacity can be calculated to be 2800mAh from RM — Qmax (DOD4-DOD 3).
In an embodiment, when the remaining capacity is calculated, the open-circuit voltage value may be calculated by a series of estimation methods such as a least square method, a kalman filter algorithm, an extended kalman filter algorithm, a fusion estimation algorithm, and a neural network algorithm.
After calculating the third remaining capacity and the first full charge capacity, the electronic device may calculate the remaining capacity according to the third remaining capacity and the first full charge capacity.
For example, if the third remaining capacity obtained by the electronic device at this time is 1750mAh and the first full charge capacity is 3500mAh, the remaining capacity may be calculated to be 50%.
For another example, if the third remaining capacity obtained by the electronic device at this time is 700mAh and the first full charge capacity is 3500mAh, the remaining capacity may be calculated to be 20%.
207. And when the battery is charged again, if the battery is fully charged, acquiring a second charging capacity of the battery, wherein the second charging capacity is the capacity of the battery charged in the process of recharging the battery until the battery is fully charged.
For example, when the battery is discharged to a certain time and starts to be charged again, if the battery is fully charged, the electronic device may obtain a second charging capacity of the battery, where the second charging capacity is a capacity charged in the process that the battery is charged again until the battery is fully charged.
208. Acquiring a second residual capacity when the battery starts to charge again; and calculating a second full charge capacity of the battery according to the second residual capacity and the second charge capacity.
For example, the electronic device may obtain a second remaining capacity when the battery starts to be charged again, and then may calculate the second full charge capacity according to a second full charge capacity FCC2 ═ RM2 ^ idt2, where RM2 is the second remaining capacity and ^ idt2 is the second charge capacity.
For example, the second remaining capacity obtained by the electronic device is 2000mAh, and the second charging capacity is 3500mAh, then the second full charging capacity may be calculated to be 5500 mAh.
As another example, the electronic device obtains the second remaining capacity of 1500mAh and the second charging capacity of 3900mAh, and then the second full charging capacity of 5400mAh can be calculated.
209. And calculating the residual capacity of the battery according to the second full charge capacity.
For example, if the remaining capacity of the electronic device at this time is 1750mAh and the second full charge capacity is 3500mAh, the remaining capacity may be calculated to be 50%.
For another example, if the remaining capacity obtained by the electronic device at this time is 700mAh and the second full charge capacity is 3500mAh, the remaining capacity can be calculated to be 20%.
In one embodiment, when the battery is recharged, if the battery is not fully charged, the remaining capacity of the battery is calculated based on the first full charge capacity.
If the battery is charged again and is not charged to the cutoff voltage, that is, the battery is not fully charged, the charged capacity is not the full charge capacity, and the remaining capacity cannot be calculated with this capacity as a reference. The electronic device calculates the remaining capacity of the battery based on the first full charge capacity, which is the full charge capacity of the last full charge, as a reference for calculating the remaining capacity.
For example, the battery is recharged and the recharging is terminated when the battery is not fully charged. The last fully charged full charge capacity, i.e., the first full charge capacity, is 4800mAh, and the remaining capacity at this time is 3000mAh, then the remaining capacity at this time is 63%.
In one embodiment, if the battery is in an unfilled state when the charging is stopped, a first record is performed; and when the number of the first records is larger than the preset number, generating and outputting prompt information, wherein the prompt information is used for reminding a user of fully charging the battery so as to update the full charge capacity of the battery.
During the use of the battery, charging and discharging are repeated, but if the battery is not fully charged by continuous charging for many times, the full charge capacity of the battery which is long before the battery is still used is obtained when the residual capacity is calculated. However, since the battery is aged after multiple uses, the actual full charge capacity of the battery at this time has changed, and if the previous full charge capacity is still used as a calculation reference, an error occurs in the calculation of the remaining power. Therefore, the battery needs to be fully charged to renew the full charge capacity. For example, if the battery is in an unfilled state when the charging is stopped, the electronic device performs the first recording once, and performs the first recording 10 times when the battery is not fully charged 10 times in succession. When the number of the first records is larger than the preset number, the electronic equipment generates and outputs prompt information, and the prompt information is used for reminding a user of fully charging the battery so as to update the full charge capacity of the battery. For example, when the battery is not fully charged for 10 times continuously, the first record is 10, and if the preset number is 8, since the first record exceeds the preset number, at this time, the electronic device generates a prompt message "your mobile phone is not fully charged for multiple times, please fully charge the battery in time".
In one embodiment, after calculating the remaining capacity of the battery according to a first full charge capacity if the battery is not fully charged, if the battery is in a non-fully charged state when the battery stops charging, performing a second record; when the number of the second records is larger than the preset number, calculating the difference between the first full charge capacity and the preset capacity to obtain a third full charge capacity; and calculating the residual capacity of the battery according to the third full charge capacity.
For example, if the battery is not fully charged for 10 consecutive times, the first record is 10, and if the preset number is 8, since the first record exceeds the preset number, at this time, it is determined that the third full charge capacity is 3750mAh assuming that the first full charge capacity is 3800mAh and the preset capacity is 50 mAh.
Referring to fig. 3 to 5, fig. 3 to 5 are schematic views of a scenario of a power calculation method according to an embodiment of the present application.
For example, when a battery is charged, the electronic device may obtain the remaining capacity of the battery at this time, i.e., the first remaining capacity. When the battery charge triggers a cutoff voltage and a cutoff current, the battery is fully charged. At this time, the electronic device may obtain the time elapsed from the time the battery starts to charge until it is fully charged, i.e., the charging time. Then, the electronic device may obtain the charging current during the period of time, and integrate the charging current to obtain a change value of the battery capacity during the charging process, i.e., the first charging capacity. As shown in fig. 3.
For example, the first charging capacity is Δ Q ═ idt, where ═ idt is the change in battery capacity after charge time t at current i. When the charging current is 800mA and the charging time is 30 minutes, the first charging capacity is
That is, the amount of capacity charged during the time elapsed from the start of charging the battery until the full charge was 400 mAh.
When a user charges an electronic device using an external device, such as a wireless charging device, but does not use the electronic device, a battery is in a charged state and is not in a discharged state, and the amount of charge of the battery increases with the charging. After the electronic device obtains the first charging capacity, the sum of the first remaining capacity and the first charging capacity can be calculated to obtain a first full charging capacity.
For example, the first remaining capacity is 3000mAh, the first charge capacity is 400mAh after charging for 30 minutes at a charging current of 800mA, and the first full charge capacity is 3400 mAh.
When the battery is in a static state, the capacity of the battery is not changed, and the voltage value of the battery can be directly read by the electronic equipment to serve as the open-circuit voltage value. And obtaining a first depth of discharge DOD1 according to the relation between the open-circuit voltage and the depth of discharge. The electronic device may then obtain a second depth of discharge DOD2, which is the depth of discharge when discharging to the shutdown voltage with the current in the current state. For example, the electronic device may look up a table to obtain the internal resistance of the battery at the shutdown voltage as R, and the average discharge current at this time as I, and then may calculate the open-circuit voltage value at the shutdown voltage according to V ═ OCV + I × R, and then obtain the discharge depth at the shutdown voltage through the relationship between the open-circuit voltage and the discharge depth, as shown in fig. 4.
For example, if the second remaining capacity obtained by the electronic device at this time is 1750mAh and the first full charge capacity is 3500mAh, the remaining capacity may be calculated to be 50%.
When the battery is discharged to a certain moment and the charging is restarted, if the battery is fully charged, the electronic equipment can obtain a second charging capacity of the battery, wherein the second charging capacity is the capacity of the battery charged in the process that the battery is charged again until the battery is fully charged. The electronic device may acquire a second remaining capacity when the battery starts to be charged again, and then may calculate the second full charge capacity according to the second full charge capacity FFC2 ═ RM2 ^ idt2, where RM2 is the second remaining capacity and ^ idt2 is the second charge capacity.
For example, the second remaining capacity obtained by the electronic device is 2000mAh, and the second charging capacity is 3500mAh, then the second full charging capacity may be calculated to be 5500 mAh.
And calculating the residual capacity of the battery according to the second full charge capacity.
For example, if the remaining capacity of the electronic device at this time is 1750mAh and the second full charge capacity is 3500mAh, the remaining capacity may be calculated to be 50%.
If the battery is charged again and is not charged to the cutoff voltage, that is, the battery is not fully charged, the charged capacity is not the full charge capacity, and the remaining capacity cannot be calculated with this capacity as a reference. The electronic device calculates the remaining capacity of the battery according to the first full charge capacity by using the full charge capacity charged last time as a reference for calculating the remaining capacity.
For example, when the battery is charged again and the charging is completed when the battery is not fully charged, the full charge capacity of the last full charge, that is, the first full charge capacity is 4800mAh, the remaining capacity at this time is 3000mAh, and the remaining capacity at this time is 63%.
If the battery is in an unfilled state when the charging is stopped, the electronic device performs the first recording once, and performs the first recording 10 times when the battery is not fully charged 10 times continuously. When the number of the first records is greater than the preset number, the electronic device generates and outputs a prompt message for prompting a user to fully charge the battery to update the full charge capacity of the battery, as shown in fig. 5.
For example, when the battery is not fully charged for 10 times continuously, the first record is 10, and if the preset number is 8, since the first record exceeds the preset number, at this time, the electronic device generates a prompt message "your mobile phone is not fully charged for multiple times, please fully charge the battery in time".
It can be understood that, in the embodiment of the present application, the actual full charge capacity of the battery is obtained each time, the full charge capacity is taken as a full charge capacity reference, and then the remaining capacity is calculated according to the current remaining capacity and the full charge capacity. Since the full charge capacity is used as a reference for calculating the remaining capacity, the factor affected by the increase in the internal resistance is not used as a reference for calculating the remaining capacity. Therefore, the problem that the residual capacity is calculated inaccurately due to the aging internal resistance increase of the battery in the traditional residual capacity calculation mode is avoided. According to the scheme, the residual capacity is calculated by taking the actual full-charge capacity of the battery as a reference, the method is not affected by the increase of the internal resistance, and the residual capacity can be accurately calculated.
Referring to fig. 6, fig. 6 is a schematic structural diagram of an electric quantity calculating device according to an embodiment of the present disclosure. The device 300 for calculating the electric quantity may include: a first obtaining module 301, a second obtaining module 302, a first calculating module 303, and a second calculating module 304.
A first obtaining module 301, configured to obtain a first remaining capacity of the battery when the battery starts to be charged;
a second obtaining module 302, configured to obtain a first charging capacity of the battery when the battery is fully charged, where the first charging capacity is a capacity charged into the battery when the battery starts to be charged until the battery is fully charged;
a first calculating module 303, configured to calculate a first full charge capacity of the battery according to the first remaining capacity and the first charge capacity;
a second calculating module 304, configured to calculate a remaining power of the battery according to the first full charge capacity.
In one embodiment, the second calculation module 304 may be configured to: when the battery is charged again, if the battery is fully charged, acquiring a second charging capacity of the battery, wherein the second charging capacity is the capacity charged into the battery in the process that the battery is charged again until the battery is fully charged; acquiring a second residual capacity when the battery starts to charge again; calculating a second full charge capacity of the battery according to the second residual capacity and the second charge capacity; calculating the residual capacity of the battery according to the second full charge capacity; and when the battery is charged again, if the battery is not fully charged, calculating the residual electric quantity of the battery according to the first full charge capacity.
In one embodiment, the first calculation module 303 may be configured to: when the battery is in a discharging state in the process of starting charging until full charging, acquiring the release capacity of the battery, wherein the release capacity of the battery is the capacity released from the battery in the process of starting charging until full charging; calculating a first full charge capacity of the battery according to the first residual capacity, the first charge capacity and the release capacity; and when the battery is not in a discharging state in the process of starting charging until the battery is fully charged, calculating the sum of the first residual capacity and the first charging capacity to obtain the first full charging capacity.
In one embodiment, the first calculation module 303 may be configured to: acquiring charging time, wherein the charging time is the time elapsed from the beginning of charging the battery to the full charge of the battery; acquiring a charging current; determining the first charging capacity according to the charging time and the charging current.
In one embodiment, the second calculation module 304 may be configured to: obtaining a first depth of discharge of the battery; calculating a second remaining capacity of the battery according to the first depth of discharge; and calculating the residual capacity of the battery according to the second residual capacity and the first full charge capacity of the battery.
In one embodiment, the second calculation module 304 is further configured to: if the battery is in an unfilled state when the charging is stopped, carrying out a first record; and when the number of the first records is larger than the preset number, generating and outputting prompt information, wherein the prompt information is used for reminding a user of fully charging the battery so as to update the full charge capacity of the battery.
In one embodiment, the second calculation module 304 is further configured to: if the battery is in an unfilled state when the charging of the battery is stopped, carrying out a second record once; when the number of the second records is larger than the preset number, calculating the difference between the first full charge capacity and the preset capacity to obtain a third full charge capacity; and calculating the residual capacity of the battery according to the third full charge capacity.
The embodiment of the present application provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed on a computer, the computer is caused to execute the flow in the electric quantity calculating method provided by the embodiment.
The embodiment of the present application further provides an electronic device, which includes a memory and a processor, where the processor is configured to execute the flow in the electric quantity calculation method provided in this embodiment by calling a computer program stored in the memory.
For example, the electronic device may be a mobile terminal such as a tablet computer or a smart phone. Referring to fig. 7, fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure.
The electronic device 400 may include components such as a battery 401, memory 402, a processor 403, and the like. Those skilled in the art will appreciate that the electronic device configuration shown in fig. 7 does not constitute a limitation of the electronic device and may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.
The memory 402 may be used to store applications and data. The memory 402 stores applications containing executable code. The application programs may constitute various functional modules. The processor 403 executes various functional applications and data processing by running an application program stored in the memory 402.
The processor 403 is a control center of the electronic device, connects various parts of the whole electronic device by using various interfaces and lines, and performs various functions of the electronic device and processes data by running or executing an application program stored in the memory 402 and calling data stored in the memory 402, thereby performing overall monitoring of the electronic device.
In this embodiment, the processor 403 in the electronic device loads the executable code corresponding to the processes of one or more application programs into the memory 402 according to the following instructions, and the processor 403 runs the application programs stored in the memory 402, so as to execute:
when the battery starts to be charged, acquiring a first residual capacity of the battery;
when the battery is fully charged, acquiring first charging capacity of the battery, wherein the first charging capacity is the capacity of the battery charged in the process that the battery starts to be charged until the battery is fully charged;
calculating a first full charge capacity of the battery according to the first residual capacity and the first charge capacity;
and calculating the residual capacity of the battery according to the first full charge capacity.
Referring to fig. 8, the electronic device 400 may include a battery 401, a memory 402, a processor 403, an input unit 404, an output unit 405, a speaker 406, and the like.
The memory 402 may be used to store applications and data. The memory 402 stores applications containing executable code. The application programs may constitute various functional modules. The processor 403 executes various functional applications and data processing by running an application program stored in the memory 402.
The processor 403 is a control center of the electronic device, connects various parts of the whole electronic device by using various interfaces and lines, and performs various functions of the electronic device and processes data by running or executing an application program stored in the memory 402 and calling data stored in the memory 402, thereby performing overall monitoring of the electronic device.
The input unit 404 may be used to receive input numbers, character information, or user characteristic information, such as a fingerprint, and generate keyboard, mouse, joystick, optical, or trackball signal inputs related to user settings and function control.
The output unit 405 may be used to display information input by or provided to a user and various graphical user interfaces of the electronic device, which may be made up of graphics, text, icons, video, and any combination thereof. The output unit may include a display panel.
In this embodiment, the processor 403 in the electronic device loads the executable code corresponding to the processes of one or more application programs into the memory 402 according to the following instructions, and the processor 403 runs the application programs stored in the memory 402, so as to execute:
when the battery starts to be charged, acquiring a first residual capacity of the battery;
when the battery is fully charged, acquiring first charging capacity of the battery, wherein the first charging capacity is the capacity of the battery charged in the process that the battery starts to be charged until the battery is fully charged;
calculating a first full charge capacity of the battery according to the first residual capacity and the first charge capacity;
and calculating the residual capacity of the battery according to the first full charge capacity.
In one embodiment, after the processor 403 calculates the remaining capacity of the battery according to the first full charge capacity, it may further perform: when the battery is charged again, if the battery is fully charged, acquiring a second charging capacity of the battery, wherein the second charging capacity is the capacity charged into the battery in the process that the battery is charged again until the battery is fully charged; acquiring a second residual capacity when the battery starts to charge again; calculating a second full charge capacity of the battery according to the second residual capacity and the second charge capacity; calculating the residual capacity of the battery according to the second full charge capacity; and when the battery is charged again, if the battery is not fully charged, calculating the residual electric quantity of the battery according to the first full charge capacity.
In one embodiment, when processor 403 executes the first remaining capacity and the first charging capacity to calculate a first full charging capacity of the battery, it may execute: when the battery is in a discharging state in the process of starting charging until full charging, acquiring the release capacity of the battery, wherein the release capacity of the battery is the capacity released from the battery in the process of starting charging until full charging; calculating a first full charge capacity of the battery according to the first residual capacity, the first charge capacity and the release capacity; and when the battery is not in a discharging state in the process of starting charging until the battery is fully charged, calculating the sum of the first residual capacity and the first charging capacity to obtain the first full charging capacity.
In one embodiment, the processor 403 may perform the following when acquiring the first charging capacity of the battery when the battery is fully charged: acquiring charging time, wherein the charging time is the time elapsed from the beginning of charging the battery to the full charge of the battery; acquiring a charging current; determining the first charging capacity according to the charging time and the charging current.
In one embodiment, when the processor 403 executes the calculating of the remaining capacity of the battery according to the first full charge capacity, it may execute: obtaining a first depth of discharge of the battery; calculating a second remaining capacity of the battery according to the first depth of discharge; and calculating the residual capacity of the battery according to the second residual capacity and the first full charge capacity of the battery.
In one embodiment, after the processor 403 executes the following steps after calculating the remaining capacity of the battery according to the first full charge capacity if the battery is not fully charged when the battery is charged again, the following steps may be further executed: if the battery is in an unfilled state when the charging is stopped, carrying out a first record; and when the number of the first records is larger than the preset number, generating and outputting prompt information, wherein the prompt information is used for reminding a user of fully charging the battery so as to update the full charge capacity of the battery.
In one embodiment, after the processor 403 executes the following steps after calculating the remaining capacity of the battery according to the first full charge capacity if the battery is not fully charged when the battery is charged again, the following steps may be further executed: if the battery is in an unfilled state when the charging of the battery is stopped, carrying out a second record once; when the number of the second records is larger than the preset number, calculating the difference between the first full charge capacity and the preset capacity to obtain a third full charge capacity; and calculating the residual capacity of the battery according to the third full charge capacity.
In the above embodiments, the descriptions of the embodiments have respective emphasis, and parts that are not described in detail in a certain embodiment may refer to the above detailed description of the electric quantity calculation method, and are not described herein again.
The electric quantity calculation device provided in the embodiment of the present application and the method for adjusting the matching degree in the above embodiments belong to the same concept, and any method provided in the electric quantity calculation embodiment may be run on the electric quantity calculation device, and a specific implementation process thereof is described in the electric quantity calculation method embodiment in detail, and is not described herein again.
It should be noted that, for the electric quantity calculating method described in the embodiment of the present application, it can be understood by those skilled in the art that all or part of the process of implementing the electric quantity calculating method described in the embodiment of the present application can be completed by controlling the relevant hardware through a computer program, where the computer program can be stored in a computer-readable storage medium, such as a memory, and executed by at least one processor, and during the execution, the process of the embodiment of the electric quantity calculating method can be included. The storage medium may be a magnetic disk, an optical disk, a Read Only Memory (ROM), a Random Access Memory (RAM), or the like.
For the electric quantity calculating device in the embodiment of the present application, each functional module may be integrated in one processing chip, or each module may exist alone physically, or two or more modules are integrated in one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium, such as a read-only memory, a magnetic or optical disk, or the like.
The foregoing describes in detail an electric quantity calculation method, an electric quantity calculation apparatus, a storage medium, and an electronic device provided in the embodiments of the present application, and a specific example is applied in the present application to explain the principles and embodiments of the present application, and the description of the foregoing embodiments is only used to help understand the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. An electric quantity calculation method is applied to electronic equipment, and is characterized in that the electronic equipment comprises a battery, and the method comprises the following steps:
when the battery starts to be charged, acquiring a first residual capacity of the battery;
when the battery is fully charged, acquiring first charging capacity of the battery, wherein the first charging capacity is the capacity of the battery charged in the process that the battery starts to be charged until the battery is fully charged;
calculating a first full charge capacity of the battery according to the first residual capacity and the first charge capacity;
and calculating the residual capacity of the battery according to the first full charge capacity.
2. The method of calculating the amount of power according to claim 1, further comprising, after calculating the remaining amount of power of the battery according to the first full charge capacity:
when the battery is charged again, if the battery is fully charged, acquiring a second charging capacity of the battery, wherein the second charging capacity is the capacity charged into the battery in the process that the battery is charged again until the battery is fully charged;
acquiring a second residual capacity when the battery starts to charge again;
calculating a second full charge capacity of the battery according to the second residual capacity and the second charge capacity;
calculating the residual capacity of the battery according to the second full charge capacity;
and when the battery is charged again, if the battery is not fully charged, calculating the residual electric quantity of the battery according to the first full charge capacity.
3. The method of calculating an amount of power according to claim 1, wherein calculating a first full charge capacity of the battery based on the first remaining capacity and the first charge capacity includes:
when the battery is in a discharging state in the process of starting charging until full charging, acquiring the release capacity of the battery, wherein the release capacity of the battery is the capacity released from the battery in the process of starting charging until full charging;
calculating a first full charge capacity of the battery according to the first residual capacity, the first charge capacity and the release capacity;
and when the battery is not in a discharging state in the process of starting charging until the battery is fully charged, calculating the sum of the first residual capacity and the first charging capacity to obtain the first full charging capacity.
4. The electric quantity calculation method according to any one of claims 1 to 3, wherein the acquiring a first charge capacity of the battery when the battery is fully charged includes:
acquiring charging time, wherein the charging time is the time elapsed from the beginning of charging the battery to the full charge of the battery;
acquiring a charging current;
determining the first charging capacity according to the charging time and the charging current.
5. The method of calculating the amount of power according to claim 1, wherein calculating the remaining power of the battery according to the first full charge capacity includes:
obtaining a first depth of discharge of the battery;
calculating a second remaining capacity of the battery according to the first depth of discharge;
and calculating the residual capacity of the battery according to the second residual capacity and the first full charge capacity of the battery.
6. The method of calculating an amount of power of claim 2, wherein the step of calculating the remaining amount of power of the battery according to the first full charge capacity when the battery is charged again and if the battery is not fully charged further comprises:
if the battery is in an unfilled state when the charging is stopped, carrying out a first record;
and when the number of the first records is larger than the preset number, generating and outputting prompt information, wherein the prompt information is used for reminding a user of fully charging the battery so as to update the full charge capacity of the battery.
7. The method of calculating an amount of power of claim 2, wherein after calculating the remaining amount of power of the battery according to the first full charge capacity if the battery is not fully charged, further comprising:
if the battery is in an unfilled state when the charging of the battery is stopped, carrying out a second record once;
when the number of the second records is larger than the preset number, calculating the difference between the first full charge capacity and the preset capacity to obtain a third full charge capacity;
and calculating the residual capacity of the battery according to the third full charge capacity.
8. An electric quantity calculation device applied to an electronic device, wherein the electronic device comprises a battery, the electric quantity calculation device comprises:
the first acquisition module is used for acquiring the residual capacity of the battery when the battery starts to be charged;
the second acquisition module is used for acquiring the charging capacity of the battery when the battery is fully charged, wherein the charging capacity is the capacity of the battery charged in the process that the battery starts to be charged until the battery is fully charged;
a first calculation module for calculating a first full charge capacity of the battery according to the remaining capacity and the charge capacity;
and the second calculation module is used for calculating the residual electric quantity of the battery according to the first full charge capacity.
9. A computer-readable storage medium, on which a computer program is stored, which, when executed on a computer, causes the computer to carry out the method according to any one of claims 1 to 7.
10. An electronic device comprising a memory, a processor, wherein the processor executes the method of any one of claims 1 to 7 by invoking a computer program stored in the memory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110193630.5A CN112858938B (en) | 2021-02-20 | 2021-02-20 | Electric quantity calculation method and device, storage medium and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110193630.5A CN112858938B (en) | 2021-02-20 | 2021-02-20 | Electric quantity calculation method and device, storage medium and electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112858938A true CN112858938A (en) | 2021-05-28 |
| CN112858938B CN112858938B (en) | 2022-10-21 |
Family
ID=75988327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110193630.5A Active CN112858938B (en) | 2021-02-20 | 2021-02-20 | Electric quantity calculation method and device, storage medium and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112858938B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115656845A (en) * | 2022-10-27 | 2023-01-31 | 拓尔微电子股份有限公司 | Battery electric quantity calculation method and device, terminal and storage medium |
| CN115825758A (en) * | 2021-12-29 | 2023-03-21 | 宁德时代新能源科技股份有限公司 | Method and system for determining remaining time of battery charging |
| CN116699430A (en) * | 2023-08-04 | 2023-09-05 | 上海泰矽微电子有限公司 | Battery residual capacity and state of charge synchronization method, electric equipment and medium |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003217678A (en) * | 2002-01-17 | 2003-07-31 | Honda Motor Co Ltd | Charging control method for secondary battery and charging control device for secondary battery |
| JP2003219570A (en) * | 2002-01-17 | 2003-07-31 | Honda Motor Co Ltd | Method and apparatus for control of charging of secondary battery |
| JP2003232839A (en) * | 2002-02-12 | 2003-08-22 | Matsushita Electric Ind Co Ltd | Residual capacity operation method of secondary battery |
| US20050046389A1 (en) * | 2002-11-08 | 2005-03-03 | Mteq Systems Inc. | Method for counting cycle count of a smart battery and method and device for correcting full charge capacity of a smart battery using the same |
| CN104698388A (en) * | 2015-03-02 | 2015-06-10 | 惠州Tcl移动通信有限公司 | Method and device for detecting battery ageing of mobile terminal |
| CN106207291A (en) * | 2016-07-12 | 2016-12-07 | 宁德新能源科技有限公司 | A kind of charging method, device and battery system |
| CN106772091A (en) * | 2016-12-30 | 2017-05-31 | 广东欧珀移动通信有限公司 | The update method of battery capacity value, device and terminal |
| CN107783051A (en) * | 2016-08-30 | 2018-03-09 | 太普电子(常熟)有限公司 | Full charge capacity calibration method |
| CN108279385A (en) * | 2018-01-26 | 2018-07-13 | 深圳市道通智能航空技术有限公司 | State of charge evaluation method, device and the electronic equipment of battery |
| WO2019116640A1 (en) * | 2017-12-13 | 2019-06-20 | 住友電気工業株式会社 | Battery monitoring device, computer program, and battery monitoring method |
| TW201932863A (en) * | 2018-01-19 | 2019-08-16 | 新盛力科技股份有限公司 | Method for estimated battery capacity |
| TWI673507B (en) * | 2018-12-06 | 2019-10-01 | 新盛力科技股份有限公司 | Estimation method for state of charge of battery |
| CN110927590A (en) * | 2019-12-17 | 2020-03-27 | Oppo广东移动通信有限公司 | Method and device for estimating remaining battery capacity, electronic device, and computer-readable storage medium |
| US20200182941A1 (en) * | 2018-12-06 | 2020-06-11 | Stl Technology Co., Ltd. | Estimation method for state of charge of battery |
| CN111781518A (en) * | 2020-07-28 | 2020-10-16 | 东莞市创明福兴电子科技有限公司 | Method and device for displaying battery electric quantity and terminal |
| CN112038720A (en) * | 2020-08-06 | 2020-12-04 | 江苏美的清洁电器股份有限公司 | Battery total capacity correction method, control device and electric appliance |
| CN112198438A (en) * | 2020-09-29 | 2021-01-08 | Oppo广东移动通信有限公司 | Method and device for detecting residual electric quantity of battery, electronic equipment and storage medium |
-
2021
- 2021-02-20 CN CN202110193630.5A patent/CN112858938B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003219570A (en) * | 2002-01-17 | 2003-07-31 | Honda Motor Co Ltd | Method and apparatus for control of charging of secondary battery |
| JP2003217678A (en) * | 2002-01-17 | 2003-07-31 | Honda Motor Co Ltd | Charging control method for secondary battery and charging control device for secondary battery |
| JP2003232839A (en) * | 2002-02-12 | 2003-08-22 | Matsushita Electric Ind Co Ltd | Residual capacity operation method of secondary battery |
| US20050046389A1 (en) * | 2002-11-08 | 2005-03-03 | Mteq Systems Inc. | Method for counting cycle count of a smart battery and method and device for correcting full charge capacity of a smart battery using the same |
| CN104698388A (en) * | 2015-03-02 | 2015-06-10 | 惠州Tcl移动通信有限公司 | Method and device for detecting battery ageing of mobile terminal |
| CN106207291A (en) * | 2016-07-12 | 2016-12-07 | 宁德新能源科技有限公司 | A kind of charging method, device and battery system |
| CN107783051A (en) * | 2016-08-30 | 2018-03-09 | 太普电子(常熟)有限公司 | Full charge capacity calibration method |
| CN106772091A (en) * | 2016-12-30 | 2017-05-31 | 广东欧珀移动通信有限公司 | The update method of battery capacity value, device and terminal |
| WO2019116640A1 (en) * | 2017-12-13 | 2019-06-20 | 住友電気工業株式会社 | Battery monitoring device, computer program, and battery monitoring method |
| TW201932863A (en) * | 2018-01-19 | 2019-08-16 | 新盛力科技股份有限公司 | Method for estimated battery capacity |
| CN108279385A (en) * | 2018-01-26 | 2018-07-13 | 深圳市道通智能航空技术有限公司 | State of charge evaluation method, device and the electronic equipment of battery |
| TWI673507B (en) * | 2018-12-06 | 2019-10-01 | 新盛力科技股份有限公司 | Estimation method for state of charge of battery |
| US20200182941A1 (en) * | 2018-12-06 | 2020-06-11 | Stl Technology Co., Ltd. | Estimation method for state of charge of battery |
| CN110927590A (en) * | 2019-12-17 | 2020-03-27 | Oppo广东移动通信有限公司 | Method and device for estimating remaining battery capacity, electronic device, and computer-readable storage medium |
| CN111781518A (en) * | 2020-07-28 | 2020-10-16 | 东莞市创明福兴电子科技有限公司 | Method and device for displaying battery electric quantity and terminal |
| CN112038720A (en) * | 2020-08-06 | 2020-12-04 | 江苏美的清洁电器股份有限公司 | Battery total capacity correction method, control device and electric appliance |
| CN112198438A (en) * | 2020-09-29 | 2021-01-08 | Oppo广东移动通信有限公司 | Method and device for detecting residual electric quantity of battery, electronic equipment and storage medium |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115825758A (en) * | 2021-12-29 | 2023-03-21 | 宁德时代新能源科技股份有限公司 | Method and system for determining remaining time of battery charging |
| CN115825758B (en) * | 2021-12-29 | 2023-11-17 | 宁德时代新能源科技股份有限公司 | Method and system for determining remaining time of battery charge |
| CN115656845A (en) * | 2022-10-27 | 2023-01-31 | 拓尔微电子股份有限公司 | Battery electric quantity calculation method and device, terminal and storage medium |
| CN115656845B (en) * | 2022-10-27 | 2023-11-14 | 拓尔微电子股份有限公司 | Method, device, terminal and storage medium for calculating battery electric quantity |
| CN116699430A (en) * | 2023-08-04 | 2023-09-05 | 上海泰矽微电子有限公司 | Battery residual capacity and state of charge synchronization method, electric equipment and medium |
| CN116699430B (en) * | 2023-08-04 | 2023-11-21 | 上海泰矽微电子有限公司 | Battery residual capacity and state of charge synchronization method, electric equipment and medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112858938B (en) | 2022-10-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112858938B (en) | Electric quantity calculation method and device, storage medium and electronic equipment | |
| TWI419390B (en) | Predicting method of remaining capacity and remaining run-time of a battery device | |
| CN106646256B (en) | Battery capacity calculating method | |
| CN107436418B (en) | Method, terminal and device for calibrating electric quantity attenuation of battery | |
| CN107024665B (en) | Method for calibrating residual capacity of battery | |
| CN106772091B (en) | Method and device for updating battery capacity value and terminal | |
| CN110729790B (en) | Charging method and device, computer equipment and storage medium | |
| CN111679206B (en) | Electric quantity detection method and device, and storage medium | |
| CN112051504B (en) | Battery capacity prediction method, device, terminal and computer readable storage medium | |
| WO2021238198A1 (en) | Charging method, charging chip, and terminal device | |
| CN111740464B (en) | Battery power compensation method, device, equipment and readable storage medium | |
| CN113567862A (en) | SOH estimation method and device for lithium battery standby system | |
| CN112630661A (en) | Battery state of charge (SOC) estimation method and device | |
| CN115704865A (en) | Battery management method and device, storage medium and electronic equipment | |
| CN109596989B (en) | Method and device for displaying electric quantity of electronic equipment and electronic equipment | |
| CN108351386B (en) | Electric quantity value calculation method, electronic equipment and storage medium | |
| JP2012149970A (en) | Battery capacity correcting device and battery capacity correcting method | |
| CN106329645B (en) | Mobile terminal and electric quantity display control method and system thereof | |
| CN108232346B (en) | Charging method and device | |
| CN117081185A (en) | Charging control method, device, equipment and storage medium | |
| CN112398212B (en) | Standby power supply control method and device, energy storage system and storage medium | |
| CN114454766A (en) | Power battery charging method, system and equipment | |
| CN110650394B (en) | Computer readable storage medium and wireless headset | |
| CN113690960A (en) | Lithium battery management method and device and related components | |
| TWI687701B (en) | Method for determining state of charge and electronic device thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |