CN106443482B - Electronic equipment and battery discharge curve calibration method thereof - Google Patents
Electronic equipment and battery discharge curve calibration method thereof Download PDFInfo
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- CN106443482B CN106443482B CN201610973559.1A CN201610973559A CN106443482B CN 106443482 B CN106443482 B CN 106443482B CN 201610973559 A CN201610973559 A CN 201610973559A CN 106443482 B CN106443482 B CN 106443482B
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- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
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Abstract
The invention provides a battery curve calibration method, which comprises the following steps: correcting the voltage of the battery when the usage data of the battery matches a preset condition; obtaining at least one reference discharge curve of the battery from the database according to the use data; when the electronic equipment is in a constant power consumption mode, controlling the battery to discharge within a preset time length; calculating the discharge electric quantity of the battery according to the power consumption and the discharge duration of the electronic equipment in the constant power consumption mode; generating a discharge oblique line of the battery according to the voltage value of the discharge starting time point of the battery, the voltage value of the discharge ending time point of the battery and the discharge electric quantity; selecting a reference discharge curve matched with the slope of a discharge oblique line from at least one reference discharge curve as a correction discharge curve of the battery; and storing the corrected discharge curve. The invention also provides electronic equipment applying the method. The invention can effectively correct the discharge curve of the battery in time so as to solve the problem of virtual electricity of the battery.
Description
Technical Field
The invention relates to an electronic device and a battery curve calibration method thereof.
Background
Many electronic products utilize a battery to provide the electric energy required by the electronic products, especially mobile electronic products (such as mobile phones, tablet computers, notebook computers, electric vehicles, etc.), which rely on the battery to supply electric power. The battery may age with the use condition (for example, the number of charging and discharging times), and the aging of the battery may cause the battery curve to be different from the curve preset at the factory, thereby causing a virtual power problem.
Disclosure of Invention
In view of the above, it is desirable to provide an electronic device and a method for calibrating a battery discharge curve thereof to solve the above problems.
The invention provides a battery curve calibration method which is applied to electronic equipment. The method comprises the following steps:
correcting the voltage of the battery when the usage data of the battery matches a preset condition;
obtaining at least one reference discharge curve of the battery from a database according to the use data; the database stores a plurality of reference discharge curves, wherein the reference discharge curves are obtained through experiments and/or tests, and the reference discharge curves are obtained through the experiments and/or the tests under different use data conditions of the battery;
when the electronic equipment is in a constant power consumption mode, controlling the battery to discharge within a preset time length;
calculating the discharge electric quantity of the battery according to the power consumption and the discharge duration of the electronic equipment in the constant power consumption mode;
generating a discharging oblique line of the battery according to the voltage value of the battery discharging starting time point, the voltage value of the discharging ending time point and the discharging electric quantity;
selecting a reference discharge curve matched with the slope of the discharge slope from the at least one reference discharge curve as a correction discharge curve of the battery, wherein the slope matching refers to the same or closest slope; and
storing the corrected discharge curve.
The present invention also provides an electronic device comprising:
the correction module is used for correcting the voltage of the battery when the use data of the battery is matched with a preset condition;
the acquisition module is used for acquiring at least one reference discharge curve of the battery from a database according to the use data; the database stores a plurality of reference discharge curves, wherein the reference discharge curves are obtained through experiments and/or tests, and the reference discharge curves are obtained through the experiments and/or the tests under different use data conditions of the battery;
the discharging module is used for controlling the battery to discharge within a preset time length when the electronic equipment is in a constant power consumption mode;
the calculation module is used for calculating the discharge electric quantity of the battery according to the power consumption and the discharge duration of the electronic equipment in the constant power consumption mode;
the generation module is used for generating a discharging oblique line of the battery according to the voltage value of the discharging starting time point of the battery, the voltage value of the discharging ending time point of the battery and the discharging electric quantity;
a selecting module, configured to select, from the at least one reference discharge curve, a reference discharge curve matched with a slope of the discharge slope as a corrected discharge curve of the battery, where the slope matching indicates that the slopes are the same or closest; and
and the storage module is used for storing the correction discharge curve.
Further, in the method for correcting a battery discharge curve provided by the present invention, the usage data is the number of times of charging and discharging the battery or the temperature of the environment where the battery is located, and the preset condition is that the number of times of charging and discharging the battery reaches a preset value or the maximum absolute value of the temperature difference of the environment where the battery is located within a preset time period reaches a preset temperature difference value.
Further, in the method for correcting a battery discharge curve provided by the present invention, the usage data is the number of times of charging and discharging the battery or the temperature of the environment where the battery is located, and the preset condition is that the number of times of charging and discharging the battery falls within a preset range or the maximum absolute value of the temperature difference of the environment where the battery is located within a preset time period falls within a preset range of temperature difference.
Further, the method for correcting the battery discharge curve provided by the invention further comprises the following steps:
detecting a current state of the electronic device;
judging whether the electronic equipment is in a constant power consumption mode or not; and
when the electronic device is not in a constant power consumption mode, setting the electronic device in the constant power consumption mode.
Further, in the method for correcting a battery discharge curve provided by the present invention, in the constant power consumption mode, the electronic device is in a sleep state, a standby state, or a rated power consumption state.
Further, the electronic device further includes:
the detection module is used for detecting the current state of the electronic equipment;
the judging module is used for judging whether the electronic equipment is in a constant power consumption mode or not; and
the setting module is used for setting the electronic equipment into a constant power consumption mode when the electronic equipment is not in the constant power consumption mode.
Compared with the prior art, the electronic equipment and the battery curve calibration method thereof provided by the invention have the advantages that when the use data of the battery of the electronic equipment is matched with the preset conditions, the discharge curve of the battery is timely and effectively corrected, so that the virtual electricity problem caused by the conditions of battery aging or large temperature difference value of the battery in a short time is solved.
Further, the electronic device and the battery curve calibration method thereof provided by the invention also detect the current state of the electronic device, and judge whether the electronic device is in a constant power consumption mode, and when the electronic device is not in the constant power consumption mode, set the electronic device in the constant power consumption mode, and then control the electronic device to discharge. Therefore, the electronic equipment is ensured to discharge in a constant power consumption mode, so that a discharge curve of the battery is obtained, and a matched correction discharge curve is obtained.
Further, the electronic device and the battery curve calibration method thereof provided by the invention also obtain the charging and discharging times of the battery, and correct the voltage of the battery only when the charging and discharging times of the battery reaches the preset times. Therefore, the discharge curve of the battery is corrected when the charging and discharging of the battery reach a certain number of times, namely the battery is aged.
Further, the electronic device and the battery curve calibration method thereof provided by the invention also detect the temperature value of the environment where the battery is located within the preset time period, and control the discharge curve of the battery to be corrected when the maximum absolute value of the temperature difference of the battery within the preset time period reaches the preset temperature difference value, that is, when the maximum absolute value of the temperature difference of the environment where the battery is located reaches the preset temperature difference value.
Drawings
Fig. 1 is a flowchart of a battery discharge curve correction method according to a first embodiment of the present invention.
Fig. 2 is a flowchart of a battery discharge curve correction method according to a second embodiment of the present invention.
Fig. 3 is a flowchart of a battery discharge curve correction method according to a third embodiment of the present invention.
Fig. 4 is a flowchart of a battery discharge curve correction method according to a fourth embodiment of the present invention.
Fig. 5 is a schematic structural diagram of the electronic device of the present invention.
Fig. 6 is an exemplary functional block diagram of a system for correcting a battery discharge curve in the electronic device shown in fig. 5.
Description of the main elements
The following detailed description will further illustrate the invention in conjunction with the above-described figures.
Detailed Description
So that the manner in which the above recited objects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. In addition, the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth to provide a thorough understanding of the present invention, and the described embodiments are merely a subset of the embodiments of the present invention, rather than a complete embodiment. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Fig. 1 is a flowchart of a method for correcting a battery discharge curve according to a first embodiment of the present invention. As shown in fig. 1, the method for correcting the battery discharge curve specifically includes the following steps:
101: and correcting the voltage of the battery when the use data of the battery is matched with a preset condition. In this embodiment, the preset conditions are: and the charging and discharging times of the battery reach preset times. For example, the preset number of times is 500, and the number of times of charging and discharging is 1 to 1 for the battery to be fully charged and discharged.
In an embodiment, the preset condition may be: the maximum absolute value of the temperature difference of the environment where the battery is located within the preset time length reaches the preset temperature difference value. The preset time can be any time in 1-10 seconds, and the preset temperature difference value can be 10 degrees. It is understood that the predetermined time period and the preset temperature difference value can be set by the user.
In another embodiment, the preset condition may be preset by the system or the user
102: obtaining at least one reference discharge curve of the battery from a database according to the use data; the database stores a plurality of reference discharge curves, and the reference discharge curves are obtained through experiments and/or tests, and are used for the battery under different use data situations.
103: and when the electronic equipment is in a constant power consumption mode, controlling the battery to discharge within a preset time length. The constant power consumption mode includes: the electronic equipment is in a sleep state, a standby state and a rated power state.
104: and calculating the discharge electric quantity of the battery according to the power consumption and the discharge duration of the electronic equipment in the constant power consumption mode. Because the power consumption of the electronic equipment is constant in a certain power consumption mode, the discharge electric quantity of the battery in the preset time length is calculated according to the power consumption and the discharge time length.
105: and generating a discharging oblique line of the battery according to the voltage value of the battery discharging starting time point, the voltage value of the discharging ending time point and the discharging electric quantity.
106: and selecting a reference discharge curve matched with the slope of the discharge slope from the at least one reference discharge curve as a correction discharge curve of the battery. In the present embodiment, slope matching means that slopes are the same or closest.
107: storing the corrected discharge curve.
It is understood that the step 102 may also be performed before the step 101, or before the step 106, and the step 102 is only performed before the step 106, and is not limited herein.
In this embodiment, with the method for correcting a discharge curve of a battery, when usage data of the battery of the electronic device matches a preset condition, for example, when a number of charging and discharging times of the battery reaches a preset number or a temperature difference of an ambient temperature of the battery within a predetermined time period reaches a preset temperature difference value, a voltage of the battery is corrected, and when the electronic device is in a constant power consumption mode, the battery is controlled to discharge within the preset time period, a discharge slope is obtained according to a discharge condition of the battery, a reference discharge curve matching a slope of the discharge slope is selected from the database as a corrected discharge curve of the battery, and the corrected discharge curve is stored. Therefore, when the use data of the battery of the electronic equipment is matched with the preset conditions, the discharge curve of the battery is timely and effectively corrected, and the virtual electricity problem caused by the conditions of battery aging or large temperature difference value of the battery in a short time is solved.
Fig. 2 is a flowchart of a method for correcting a discharge curve according to a second embodiment of the present invention. The second embodiment is mainly different from the first embodiment in that in the second embodiment, the current state of the electronic device is further detected before the electronic device is controlled to discharge, and when the current state of the electronic device is not in the constant power consumption mode, the electronic device is further set to the constant power consumption mode, and then the electronic device is controlled to discharge.
It should be noted that, within the spirit of the present invention, each specific solution applied to the first embodiment can be correspondingly applied to the second embodiment, and for the sake of brevity and avoidance of repetition, the detailed description thereof is omitted here.
As shown in fig. 2, the method for correcting the discharge curve specifically includes the following steps:
fig. 2 is a flowchart of a method of correcting a battery discharge curve according to a second embodiment of the present invention. As shown in fig. 2, the method for correcting the battery discharge curve specifically includes the following steps:
201: and correcting the voltage of the battery when the use data of the battery is matched with a preset condition. In this embodiment, the preset conditions are: and the charging and discharging times of the battery reach preset times. For example, the preset number of times is 500, and the number of times of charging and discharging is 1 to 1 for the battery to be fully charged and discharged.
In an embodiment, the preset condition may be: the maximum absolute value of the temperature difference of the environment where the battery is located within the preset time length reaches the preset temperature difference value. The preset time can be any time in 1-10 seconds, and the preset temperature difference value can be 10 degrees.
202: obtaining at least one reference discharge curve of the battery from a database according to the use data; the database stores a plurality of reference discharge curves, and the reference discharge curves are obtained through experiments and/or tests, and are used for the battery under different use data situations.
203: detecting a current state of the electronic device.
204: and judging whether the electronic equipment is in a constant power consumption mode, if so, entering a step 206, and if not, entering a step 205.
205: setting the electronic device to a constant power consumption mode. The constant power consumption mode includes: the electronic equipment is in a sleep state, a standby state and a rated power state.
206: and controlling the battery to discharge within a preset time length.
207: and calculating the discharge electric quantity of the battery according to the power consumption and the discharge duration of the electronic equipment in the constant power consumption mode. Because the power consumption of the electronic equipment is constant in a certain power consumption mode, the discharge electric quantity of the battery in the preset time length is calculated according to the power consumption and the discharge time length.
208: and generating a discharging oblique line of the battery according to the voltage value of the battery discharging starting time point, the voltage value of the discharging ending time point and the discharging electric quantity.
209: and selecting a reference discharge curve matched with the slope of the discharge slope from the at least one reference discharge curve as a correction discharge curve of the battery.
210: storing the corrected discharge curve.
It is understood that the step 202 may also be performed before the step 201 or before the step 209, and the step 202 is only required to be performed before the step 209, and is not limited herein.
The second embodiment, in addition to the technical solution mentioned in the first embodiment and the corresponding technical effects, also detects the current state of the electronic device, and determines whether the electronic device is in the constant power consumption mode, and when the electronic device is not in the constant power consumption mode, sets the electronic device to the constant power consumption mode, and then controls the electronic device to discharge. Therefore, the electronic equipment is ensured to discharge in a constant power consumption mode, so that a discharge curve of the battery is obtained, and a matched correction discharge curve is obtained.
Fig. 3 is a flowchart of a method of correcting a battery discharge curve according to a third embodiment of the present invention. It should be noted that, within the spirit of the present invention, each specific solution applied to the first embodiment may also be correspondingly applied to the third embodiment, and for the sake of brevity and avoidance of repetition, detailed description thereof is omitted here.
As shown in fig. 3, the method for correcting the battery discharge curve specifically includes the following steps:
301: and acquiring the charging and discharging times of the battery. In this embodiment, the preset number of times is 500, and the number of times of charging and discharging is 1 to 1 for the battery to be fully charged and discharged.
302: and judging whether the charging and discharging times of the battery reach the preset times, if so, entering the step 303, and if not, returning to the step 301.
303: correcting the voltage of the battery.
304: obtaining at least one reference discharge curve of the battery from a database according to the use data; the database stores a plurality of reference discharge curves, and the reference discharge curves are obtained through experiments and/or tests, and are used for the battery under different use data situations.
305: and when the electronic equipment is in a constant power consumption mode, controlling the battery to discharge within a preset time length. The constant power consumption mode includes: the electronic equipment is in a sleep state, a standby state and a rated power state.
306: and calculating the discharge electric quantity of the battery according to the power consumption and the discharge duration of the electronic equipment in the constant power consumption mode. Because the power consumption of the electronic equipment is constant in a certain power consumption mode, the discharge electric quantity of the battery in the preset time length is calculated according to the power consumption and the discharge time length.
307: and generating a discharging oblique line of the battery according to the voltage value of the battery discharging starting time point, the voltage value of the discharging ending time point and the discharging electric quantity.
308: and selecting a reference discharge curve matched with the slope of the discharge slope from the at least one reference discharge curve as a correction discharge curve of the battery.
309: storing the corrected discharge curve.
It is understood that the step 304 may also be performed before the step 303, or before the step 308, and the step 304 is only performed before the step 308, and is not limited herein.
In addition to the technical solution and the corresponding technical effects mentioned in the first embodiment, the third embodiment further obtains the number of times of charging and discharging the battery, and corrects the voltage of the battery when it is determined that the number of times of charging and discharging the battery reaches a preset number. Therefore, when the number of times of charging and discharging of the battery reaches a preset number, the subsequent steps are executed. Therefore, the discharge curve of the battery is corrected when the charging and discharging of the battery reach a certain number of times, namely the battery is aged.
Fig. 4 is a flowchart of a method of correcting a battery discharge curve according to a fourth embodiment of the present invention. It should be noted that, within the spirit of the present invention, each specific solution applied to the first embodiment may also be correspondingly applied to the fourth embodiment, and for the sake of brevity and avoidance of repetition, detailed description thereof is omitted here.
As shown in fig. 4, the method for correcting the battery discharge curve specifically includes the following steps:
401: and detecting the temperature value of the environment of the battery within a preset time. In this embodiment, the temperature value of the environment where the battery is located within the predetermined time period is detected according to a preset detection frequency, for example, the temperature value of the environment where the battery is located within the predetermined time period is detected every 1 second, that is, in this step, the detected temperature value may include a plurality of temperature values within the predetermined time period.
402: and judging whether the maximum absolute value of the temperature difference of the environment of the battery in the preset time period reaches a preset temperature difference value, if so, entering the step 403, and otherwise, returning to the step 401. The preset time can be any time in 1-10 seconds, and the preset temperature difference value can be 10 degrees.
403: correcting the voltage of the battery.
404: obtaining at least one reference discharge curve of the battery from a database according to the use data; the database stores a plurality of reference discharge curves, and the reference discharge curves are obtained through experiments and/or tests, and are used for the battery under different use data situations.
405: and when the electronic equipment is in a constant power consumption mode, controlling the battery to discharge within a preset time length. The constant power consumption mode includes: the electronic equipment is in a sleep state, a standby state and a rated power state.
406: and calculating the discharge electric quantity of the battery according to the power consumption and the discharge duration of the electronic equipment in the constant power consumption mode. Because the power consumption of the electronic equipment is constant in a certain power consumption mode, the discharge electric quantity of the battery in the preset time length is calculated according to the power consumption and the discharge time length.
407: and generating a discharging oblique line of the battery according to the voltage value of the battery discharging starting time point, the voltage value of the discharging ending time point and the discharging electric quantity.
408: and selecting a reference discharge curve matched with the slope of the discharge slope from the at least one reference discharge curve as a correction discharge curve of the battery.
409: storing the corrected discharge curve.
It is understood that the step 404 may also be performed before the step 403, or before the step 408, and the step 404 is only required to be performed before the step 408, and is not limited herein.
In addition to the technical solution and the corresponding technical effect mentioned in the first embodiment, the fourth embodiment further detects a temperature value of the environment where the battery is located within a predetermined time period, and executes subsequent steps when it is determined that the maximum absolute value of the temperature difference of the environment where the battery is located within the predetermined time period reaches a preset temperature difference value. Therefore, the discharge curve of the battery is corrected when the maximum absolute value of the temperature difference of the battery within the preset time length reaches the preset temperature difference value, namely the maximum absolute value of the temperature difference value of the environment where the battery is located reaches the preset temperature difference value.
The above is a detailed description of the method provided by the present invention. The order of execution of the blocks in the flowcharts shown may be changed, and some blocks may be omitted, according to various needs. The system provided by the present invention is described below.
Fig. 5 is a schematic structural diagram of an electronic device to which the above embodiments can be applied. As shown in fig. 5, the electronic device 1 includes a storage 10. The storage device 10 stores a correction system 100 applied to a battery discharge curve of the electronic apparatus 1. The electronic device 1 may be a battery-equipped electronic device such as a mobile phone, a tablet computer, a personal digital assistant, and the like. The battery discharge curve correction system 100 is configured to correct a voltage of a battery of the electronic device when usage data of the battery matches a preset condition, control the battery to discharge within a preset time period to obtain a discharge slope of the battery when the electronic device is in a constant power consumption mode, select a reference discharge curve matched with a slope of the discharge slope in a database as a corrected discharge curve of the battery, and store the corrected discharge curve. Therefore, when the use data of the battery of the electronic equipment is matched with the preset conditions, the discharge curve of the battery is timely and effectively corrected, and the virtual electricity problem caused by the conditions of battery aging or large temperature difference value of the battery in a short time is solved.
In this embodiment, the electronic device 1 is a mobile phone. The electronic device 1 may further include a temperature sensor 20 and a processor 30. The storage device 10 and the temperature sensor 20 may be electrically connected to the processor 30.
The memory device 10 may be different types of memory devices for storing various types of data. For example, the memory may be a memory of the electronic device 1, and may also be a memory Card that is externally connectable to the electronic device 1, such as a flash memory, an SM Card (Smart media Card), an SD Card (Secure Digital Card), and the like. The storage device 10 is used to store various types of data, for example, various types of Applications (Applications) installed in the electronic apparatus 1, the database storing a plurality of reference discharge curves, the calibration system 100 setting using the battery discharge curve, acquired data, and the like.
The temperature sensor 20 is installed in the electronic device 1 for sensing a temperature value of a current environment.
The processor 30 is used for executing the battery discharge curve calibration system 100 and various types of software installed in the electronic device 1, such as an operating system and battery discharge curve calibration software. The processor 30 includes, but is not limited to, a Central Processing Unit (CPU), a Micro Controller Unit (MCU), and other devices for interpreting computer instructions and Processing data in computer software.
The system 100 for correcting a battery discharge curve may be divided into one or more modules, and the one or more modules are stored in the storage device 10 of the electronic device 1 and configured to be executed by one or more processors (in this embodiment, one processor 30) to complete the present invention. For example, referring to fig. 6, the system 100 for calibrating the battery discharge curve can be divided into a calibration module 11, an acquisition module 12, a discharge module 13, a calculation module 14, a generation module 15, a selection module 16, a storage module 17, a detection module 18, a judgment module 19, and a setting module 21. The modules referred to in this application are program segments that perform a certain function and are better suited than programs for describing the execution of software on a processor.
It is understood that, corresponding to the embodiments of the method for correcting a discharge curve, the system 100 for correcting a discharge curve of a battery may be divided into some or all of the functional modules shown in fig. 6, and the functions of the functional modules will be described in detail below. It should be noted that the same noun and its specific explanation in the above embodiments of the discharge curve correction method can also be applied to the following functional description of each module. For brevity and to avoid repetition, further description is omitted.
And the correction module 11 is used for correcting the voltage of the battery when the use data of the battery is matched with a preset condition.
The correction module 11 may be further configured to correct the voltage of the battery when the number of charging and discharging times of the battery reaches a preset number; and the voltage of the battery is corrected when the maximum absolute value of the temperature difference of the environment where the battery is located within the preset time length reaches a preset temperature difference value.
The obtaining module 12 may be configured to obtain at least one reference discharging curve of the battery from a database according to the usage data, and obtain the charging and discharging times of the battery.
And the discharging module 13 is configured to control the battery to discharge within a preset time period when the electronic device is in the constant power consumption mode.
And the calculating module 14 is configured to calculate the discharge electric quantity of the battery according to the power consumption and the discharge time of the electronic device in the constant power consumption mode.
The generating module 15 is configured to generate a discharge slope of the battery according to the voltage value at the discharge start time point of the battery, the voltage value at the discharge end time point of the battery, and the discharge electric quantity.
The selecting module 16 is configured to select a reference discharge curve matching the slope of the discharge slope from the at least one reference discharge curve as a corrected discharge curve of the battery.
A storage module 17, configured to store the calibration discharge curve selected by the selection module 16.
The detection module 18 may be configured to detect a current state of the electronic device 1 and detect a temperature value of an environment where the battery is located within a predetermined time period.
The determining module 19 is configured to determine whether the electronic device 1 is in a constant power consumption mode, and determine whether the number of charging and discharging times of the battery reaches a preset number.
The determining module 19 may further be configured to determine whether a maximum absolute value of a temperature difference of an environment where the battery is located within the predetermined time period reaches a preset temperature difference value.
A setting module 21, configured to set the electronic device to the constant power consumption mode when the determining module 19 determines that the electronic device 1 is not in the constant power consumption mode.
In the several embodiments provided in the present invention, it should be understood that the disclosed system and method may be implemented in other ways. For example, the system embodiments described above are merely illustrative, and for example, the division of the modules is only one logical functional division, and other divisions may be realized in practice.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it is obvious that the word "comprising" does not exclude other elements or steps, and the singular does not exclude the plural. Several units or means recited in the system claims may also be implemented by one and the same unit or means in software or hardware. The terms first, second, etc. are used to denote names, but not any particular order.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention.
Claims (10)
1. A method for correcting a battery discharge curve is applied to electronic equipment, and is characterized by comprising the following steps:
correcting the voltage of the battery when the usage data of the battery matches a preset condition;
obtaining at least one reference discharge curve of the battery from a database according to the use data; the database stores a plurality of reference discharge curves, wherein the reference discharge curves are obtained through experiments and/or tests, and the reference discharge curves are obtained through the experiments and/or the tests under different use data conditions of the battery;
when the electronic equipment is in a constant power consumption mode, controlling the battery to discharge within a preset time length;
calculating the discharge electric quantity of the battery according to the power consumption and the discharge duration of the electronic equipment in the constant power consumption mode;
generating a discharging oblique line of the battery according to the voltage value of the battery discharging starting time point, the voltage value of the discharging ending time point and the discharging electric quantity;
selecting a reference discharge curve matched with the slope of the discharge slope from the at least one reference discharge curve as a correction discharge curve of the battery, wherein the slope matching refers to the same or closest slope; and
storing the corrected discharge curve.
2. The method for correcting a battery discharge curve according to claim 1, characterized in that: the using data is the charging and discharging times of the battery or the ambient temperature of the battery, and the preset condition is that the charging and discharging times of the battery reach a preset value or the maximum absolute value of the temperature difference of the environment of the battery within a preset time length reaches a preset temperature difference value.
3. The method for correcting a battery discharge curve according to claim 1, characterized in that: the usage data is the charging and discharging times of the battery or the ambient temperature of the battery, and the preset condition is that the charging and discharging times of the battery fall within a preset range or the maximum absolute value of the temperature difference of the environment of the battery within a preset time length falls within a preset temperature difference range.
4. The method for correcting a battery discharge curve according to claim 1, further comprising:
detecting a current state of the electronic device;
judging whether the electronic equipment is in a constant power consumption mode or not; and
when the electronic device is not in a constant power consumption mode, setting the electronic device in the constant power consumption mode.
5. The method for correcting a battery discharge curve according to any one of claims 1 to 4, characterized in that: in the constant power consumption mode, the electronic device is in a sleep state, a standby state or a rated power consumption state.
6. An electronic device, comprising:
the correction module is used for correcting the voltage of the battery when the use data of the battery is matched with a preset condition;
the acquisition module is used for acquiring at least one reference discharge curve of the battery from a database according to the use data; the database stores a plurality of reference discharge curves, wherein the reference discharge curves are obtained through experiments and/or tests, and the reference discharge curves are obtained through the experiments and/or the tests under different use data conditions of the battery;
the discharging module is used for controlling the battery to discharge within a preset time length when the electronic equipment is in a constant power consumption mode;
the calculation module is used for calculating the discharge electric quantity of the battery according to the power consumption and the discharge duration of the electronic equipment in the constant power consumption mode;
the generation module is used for generating a discharging oblique line of the battery according to the voltage value of the discharging starting time point of the battery, the voltage value of the discharging ending time point of the battery and the discharging electric quantity;
a selecting module, configured to select, from the at least one reference discharge curve, a reference discharge curve matched with a slope of the discharge slope as a corrected discharge curve of the battery, where the slope matching indicates that the slopes are the same or closest; and
and the storage module is used for storing the correction discharge curve.
7. The electronic device of claim 6, wherein: the using data is the charging and discharging times of the battery or the ambient temperature of the battery, and the preset condition is that the charging and discharging times of the battery reach a preset value or the maximum absolute value of the temperature difference of the environment of the battery within a preset time length reaches a preset temperature difference value.
8. The electronic device of claim 6, wherein: the usage data is the charging and discharging times of the battery or the ambient temperature of the battery, and the preset condition is that the charging and discharging times of the battery fall within a preset range or the maximum absolute value of the temperature difference of the environment of the battery within a preset time length falls within a preset temperature difference range.
9. The electronic device of claim 6, further comprising:
the detection module is used for detecting the current state of the electronic equipment;
the judging module is used for judging whether the electronic equipment is in a constant power consumption mode or not; and
the setting module is used for setting the electronic equipment into a constant power consumption mode when the electronic equipment is not in the constant power consumption mode.
10. The electronic device of any of claims 6-9, wherein: in the constant power consumption mode, the electronic device is in a sleep state, a standby state or a rated power consumption state.
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| KR102253781B1 (en) * | 2017-04-28 | 2021-05-20 | 주식회사 엘지화학 | Apparatus and method for controlling discharge |
| CN108874108B (en) * | 2017-05-16 | 2023-09-05 | 复旦大学 | Frequency modulation method and device for CPU |
| CN108128191A (en) * | 2017-12-25 | 2018-06-08 | 衢州量智科技有限公司 | The capacity correction method and device of electric automobile lithium battery based on big data |
| CN113884916A (en) * | 2020-07-02 | 2022-01-04 | 聚众联合科技股份有限公司 | Electric quantity judging module and electric quantity correcting method thereof |
| CN111796195B (en) * | 2020-07-31 | 2022-04-01 | 中国汽车工程研究院股份有限公司 | Method for identifying fault battery monomer by accumulating charge-discharge curves of power battery |
| CN111751756B (en) * | 2020-07-31 | 2022-06-03 | 中国汽车工程研究院股份有限公司 | Method for identifying fault battery monomer by using accumulated power battery temperature curve |
| US20230305064A1 (en) * | 2022-03-28 | 2023-09-28 | Ratnesh Kumar Sharma | Systems and methods for managing diverse batteries |
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| TWI420126B (en) * | 2011-09-27 | 2013-12-21 | Neotec Semiconductor Ltd | Device for battery capacity prediction and method for the same |
| TWI478418B (en) * | 2012-01-20 | 2015-03-21 | Via Tech Inc | Calibration method and system for discharging curve of a battery |
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