WO2018064865A1 - 一种获取电池电量的方法、装置和电子设备 - Google Patents

一种获取电池电量的方法、装置和电子设备 Download PDF

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Publication number
WO2018064865A1
WO2018064865A1 PCT/CN2016/113240 CN2016113240W WO2018064865A1 WO 2018064865 A1 WO2018064865 A1 WO 2018064865A1 CN 2016113240 W CN2016113240 W CN 2016113240W WO 2018064865 A1 WO2018064865 A1 WO 2018064865A1
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Prior art keywords
battery
detected
power
charging
voltage
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PCT/CN2016/113240
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English (en)
French (fr)
Inventor
朱双帅
郄勇
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歌尔科技有限公司
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Priority to US16/334,739 priority Critical patent/US10955482B2/en
Publication of WO2018064865A1 publication Critical patent/WO2018064865A1/zh

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    • 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]
    • G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
    • G01R31/3842—Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
    • 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
    • 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]
    • G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
    • G01R31/3835—Arrangements for monitoring battery or accumulator variables, e.g. SoC involving only voltage measurements
    • 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]
    • G01R31/392—Determining battery ageing or deterioration, e.g. state of health
    • 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]

Definitions

  • the present invention relates to the field of power electronics, and in particular, to a method, device, and electronic device for acquiring battery power.
  • the charging process of the completed lithium battery can be divided into three parts: trickle charging, constant current charging, and constant voltage charging. During the entire charging process, the charging voltage of the battery will be high. If the actual battery voltage is 3.6V, the battery may exhibit a voltage of 3.7V during charging. In the actual use of electronic devices, for example, the electronic device is a mobile phone, a watch or a wristband, etc., and the battery power is updated at any time during the charging process.
  • the battery power displayed directly is the battery voltage corresponding to the battery voltage measured during charging, the displayed battery power will be too large, even if the device display is full, but the actual battery power has not reached the displayed state.
  • a table corresponding to the actual voltage of the battery to be measured in an uncharged state and a virtual voltage at the time of charging is generally used, and the charging voltage is converted into an actual voltage through a correspondence table, and then the current battery power corresponding to the actual voltage is displayed. user.
  • the manner of determining the actual power of the rechargeable battery to be tested not only requires a large amount of manpower to detect the actual voltage and the virtual voltage in the early stage, and draws a voltage correspondence table, and the voltage corresponds to
  • the table is susceptible to the detection environment, resulting in large errors, and the applicable range of the voltage correspondence table is small and cannot be compatible with different electronic devices.
  • the invention provides a method, a device and an electronic device for acquiring battery power, so as to solve the method for determining the actual power of the rechargeable battery to be tested by using the actual voltage and virtual voltage correspondence table query in the prior art, which requires a large amount of human resources. Due to the influence of the detection environment factors, the error is large and the scope of application is small.
  • a method of obtaining battery power comprising:
  • an apparatus for obtaining a battery power comprising:
  • An instruction receiving unit configured to acquire a charging instruction
  • An information acquiring unit configured to acquire, according to the charging instruction, a discharge voltage value of the battery to be detected and a corresponding power and voltage threshold;
  • a charging power acquiring unit configured to acquire a charging power of the battery to be detected according to a discharge voltage value of the battery to be detected and the voltage threshold;
  • the battery power acquisition unit is configured to acquire the power quantity of the battery to be detected according to the power quantity corresponding to the discharge voltage value of the battery to be detected and the charge quantity of the battery to be detected.
  • an electronic device comprising: means for obtaining a battery power as in another aspect of the present invention.
  • the method and device for obtaining battery power of the present invention are: firstly, according to a charging instruction, automatically acquiring a discharge voltage value of a battery to be detected and a corresponding power amount and a voltage threshold thereof, and then detecting the battery according to the to-be-detected Obtaining a charge quantity of the battery and a voltage threshold of the battery, and obtaining a charge quantity of the battery to be detected; and finally summing the charge quantity of the battery to be detected and the discharge voltage value of the battery to be detected, and obtaining the Detect the current battery level.
  • the current power consumption of the battery to be detected in this technical solution is updated in real time according to the real-time acquisition of the charging power of the battery to be detected, and there is no need for a large amount of manual detection in the early stage, and the technical solutions of the present invention are automatically detected and updated in a loop, and will not Under the influence of the external detection environment, the detection error is small, and the battery power to be detected can be accurately obtained even in a low temperature environment, avoiding the rapid rise of the battery voltage due to the large internal resistance of the circuit in the low temperature environment of the prior art. problem.
  • the technical solution of the present invention is to obtain the charging power of the battery to be detected according to the discharge voltage value of the battery to be detected and the voltage threshold.
  • the technical solution of the present invention obtains the charging power of the battery to be detected according to the actual parameters of the battery to be detected. Therefore, the method and device for obtaining the battery power according to the technical solution of the present invention are applicable to various rechargeable batteries.
  • the present invention also provides an electronic device, wherein the electronic device includes the device for obtaining battery power of the present invention, such that an application in the electronic device can be detected according to the device for acquiring battery power.
  • the charging power of the battery and the power of the battery to be detected display the charging power of the battery to be detected and the current battery power, so that the user can know the charging status of the charging battery of the electronic device in real time, thereby improving the user experience.
  • FIG. 1 is a flow chart of a method for obtaining battery power according to an embodiment of the present invention
  • FIG. 2 is a block diagram showing the structure of an apparatus for acquiring battery power according to an embodiment of the present invention
  • FIG. 3 is a structural block diagram of an electronic device according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of current versus time changes in a battery charging process according to an embodiment of the present invention.
  • a prior art technique for obtaining the current battery power corresponding to the actual voltage during the charging process of the electronic device is to determine the actual amount of the charged battery to be tested by using the actual voltage and the virtual voltage correspondence table query, which not only requires a large amount of manpower in the early stage.
  • To detect the actual voltage and the virtual voltage draw a voltage correspondence table, and the voltage correspondence table is susceptible to the detection environment, resulting in a large error, and the applicable range of the voltage correspondence table is small and cannot be compatible with different electronic devices.
  • the design concept of the present invention is that, in the prior stage, it takes a lot of manpower to detect the actual voltage and the virtual voltage, and draws a voltage correspondence table, and the voltage correspondence table is easily affected by the detection environment, resulting in a large error, and the said The applicable range of the voltage correspondence table is small and cannot be compatible with different electronic devices.
  • the technical solution of the present invention automatically acquires the discharge voltage value of the battery to be detected and the corresponding power and voltage threshold according to the charging instruction, and then according to the battery to be detected.
  • the current power consumption does not require a large amount of manual detection in the early stage, and the technical solutions of the present invention are automatically detected and updated, and are not affected by the external detection environment, and the detection error is small.
  • the application range of the voltage correspondence table in the prior art is small and cannot be compatible with different electronic device problems.
  • the technical solution of the present invention proposes to obtain the charging power of the battery to be detected according to the actual parameters of the battery to be detected, and is applicable to various types. Rechargeable Battery.
  • the battery to be detected in the embodiment is a lithium battery; the charging process of the lithium battery (see FIG. 4) can be divided into three. Part: Trickle charging, constant current charging, constant voltage charging; since the charging current for trickle charging is very small and the time is also very short, the trickle charging power is neglected in this embodiment.
  • the method for obtaining battery power of the present invention includes the following steps:
  • Step S11 acquiring a charging instruction
  • the charging instruction is used to initiate a process of acquiring battery power; usually issued by the main board.
  • Step S12 acquiring a discharge voltage value of the battery to be detected and a corresponding power and voltage threshold according to the charging instruction
  • the discharge voltage value of the battery to be detected is a current actual voltage value of the battery to be detected,
  • the corresponding power is the power of the actual current rechargeable battery
  • the voltage threshold includes: a lower limit voltage threshold and an upper limit voltage threshold; wherein the lower limit voltage threshold is generally a voltage value that the battery to be detected cannot output power; the upper limit voltage The threshold is typically the voltage value of the maximum output power of the battery to be detected.
  • Step S13 acquiring a charging power of the battery to be detected according to the discharge voltage value of the battery to be detected and the voltage threshold;
  • a step specific implementation process is as follows on a lower limit and an upper voltage threshold V voltage threshold V:
  • the timer T1 is counting state, acquires the charging time constant t1, obtaining The constant current charging power W1 of the battery to be detected;
  • the step of acquiring the constant current charging power W1 of the battery to be detected includes:
  • the step of acquiring the constant voltage charging power W3 of the battery to be detected includes:
  • the constant voltage charging electric quantity W3 of the battery to be detected is acquired.
  • the timing t3 can be converted according to the proportional relationship between the constant voltage charging time t3 recorded by the timer T3 and the total time length T2 required for the constant voltage charging phase.
  • Step S14 Acquire the power of the battery to be detected according to the amount of electricity corresponding to the discharge voltage value of the battery to be detected and the charge amount of the battery to be detected.
  • the step is specifically implemented as follows:
  • the battery When the charged electricity discharge voltage value V 0 of the battery is detected to be not smaller than the lower limit threshold voltage V, and smaller than the upper threshold voltage V, the battery is detected to be to be detected in the constant current charging of the battery power W1;
  • the charged power W of the battery to be detected is charged as the constant current charging power W1 of the battery to be detected and the constant voltage charging power of the battery to be detected.
  • the sum of W3, that is, W charge W1 + W3;
  • FIG. 2 is a structural block diagram of an apparatus for obtaining a battery power according to an embodiment of the present invention.
  • the device 20 for obtaining battery power includes:
  • the instruction receiving unit 201 is configured to acquire a charging instruction
  • the information obtaining unit 202 is configured to acquire, according to the charging instruction, a discharge voltage value of the battery to be detected and a corresponding power and voltage threshold thereof;
  • the charging power acquiring unit 203 is configured to acquire the charging power of the battery to be detected according to the discharge voltage value of the battery to be detected and the voltage threshold;
  • the battery power obtaining unit 204 is configured to acquire the power quantity of the battery to be detected according to the power quantity corresponding to the discharge voltage value of the battery to be detected and the power quantity of the battery to be detected.
  • the charging power acquiring unit 203 includes:
  • Charging power acquisition sub-unit for discharging a voltage value to be detected when the battery has not reached the lower limit value of the threshold voltage, discharge voltage value corresponding to the quantity to be detected remaining power of the battery to be detected remaining battery W
  • the timer T1 is started to start timing; when the discharge voltage value of the battery to be detected is not less than the lower limit voltage threshold and less than the upper limit
  • the timer T1 is in a timed state, the constant current charging time t1 is obtained, and the constant current charging power W1 of the battery to be detected is acquired; when the discharging voltage value of the battery to be detected reaches the upper limit voltage threshold Ending the timer T1 and starting the timer T3 to start timing; when the discharge voltage value of the battery to be detected is not less than the upper limit voltage threshold, the timer T3 is in a timed state, and the constant is obtained.
  • the charging power acquisition subunit is further configured to acquire the constant current charging time t1 and the constant current charging current I1, and multiply the constant current charging time t1 by the constant current charging current I1. Obtaining a constant current charging power W1 of the battery to be detected.
  • the charging power acquisition sub-unit is further configured to acquire the standard nominal power W of the battery to be detected; the detection of the battery to be charged according to the nominal standard power W and the constant current of said battery is detected to be
  • the current I1 and the constant current charging power W1 of the battery to be detected obtain the constant voltage charging total time T2 and the constant voltage charging total power; according to the constant voltage charging time t3 recorded by the timer T3, the total constant voltage charging time T2 and the total amount of constant voltage charging, obtaining a constant voltage charging power W3 of the battery to be detected.
  • the battery power acquiring unit is further configured to: when the discharge voltage value of the battery to be detected is not less than the lower limit voltage threshold, and less than the upper limit voltage threshold, charging of the battery to be detected
  • the electric quantity is the constant current charging electric quantity W1 of the battery to be detected
  • the electric quantity of the battery to be detected is obtained according to the sum of the electric quantity corresponding to the discharge voltage value of the battery to be detected and the constant current charging electric quantity W1 of the battery to be detected
  • the charge amount of the battery to be detected is the sum of the constant current charge amount W1 of the battery to be detected and the constant voltage charge amount W3 of the battery to be detected.
  • the working process of the device for obtaining the battery power in the embodiment corresponds to the implementation step of the method for obtaining the battery power, and thus the working process of the device for obtaining the battery power in this embodiment is no longer here.
  • the working process of the device for obtaining the battery power in this embodiment is no longer here.
  • FIG. 3 is a structural block diagram of an electronic device according to an embodiment of the present invention.
  • the electronic device 30 includes: A device 301 that obtains battery power.
  • a device 301 that obtains battery power For the implementation principle and working process of the device 301 for obtaining the battery power, refer to the detailed description of the device 20 for obtaining the battery power in the foregoing third embodiment.
  • the method and device for obtaining battery power of the present invention are: firstly, according to a charging instruction, automatically acquiring a discharge voltage value of a battery to be detected and a corresponding power amount and a voltage threshold thereof, and then detecting the battery according to the to-be-detected Obtaining a charge quantity of the battery and a voltage threshold of the battery, and obtaining a charge quantity of the battery to be detected; and finally summing the charge quantity of the battery to be detected and the discharge voltage value of the battery to be detected, and obtaining the Detect the current battery level.
  • the current power consumption of the battery to be detected in this technical solution is updated in real time according to the real-time acquisition of the charging power of the battery to be detected, and there is no need for a large amount of manual detection in the early stage, and the technical solutions of the present invention are automatically detected and updated in a loop, and will not Under the influence of the external detection environment, the detection error is small, and the battery power to be detected can be accurately obtained even in a low temperature environment, avoiding the rapid rise of the battery voltage due to the large internal resistance of the circuit in the low temperature environment of the prior art. problem.
  • the technical solution of the present invention is to obtain the charging power of the battery to be detected according to the discharge voltage value of the battery to be detected and the voltage threshold.
  • the technical solution of the present invention obtains the charging power of the battery to be detected according to the actual parameters of the battery to be detected. Therefore, the method and device for obtaining the battery power according to the technical solution of the present invention are applicable to various rechargeable batteries.
  • the present invention also provides an electronic device, wherein the electronic device includes the device for obtaining battery power of the present invention, such that an application in the electronic device can be detected according to the device for acquiring battery power.
  • the charging power of the battery and the power of the battery to be detected display the charging power of the battery to be detected and the current battery power, so that the user can know the charging status of the charging battery of the electronic device in real time, thereby improving the user experience.

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  • General Physics & Mathematics (AREA)
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  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

一种获取电池电量的方法、装置以及电子设备，该方法包括：获取充电指令(S11)；根据所述充电指令，获取待检测电池的放电电压值及其对应的电量和电压阈值(S12)；根据所述待检测电池的放电电压值和所述电压阈值，获取所述待检测电池的充电电量(S13)；根据所述待检测电池的放电电压值对应的电量及所述待检测电池的充电电量，获取所述待检测电池的电量(S14)。通过自动获取待检测电池的放电电压值及其对应的电量和电压阈值，确定所述待检测电池的当前充电电量，进而可以获取到准确的待检测电池的当前电量。不但节省大量人力资源，且电池电量的获取过程不受到外界环境的影响，适用于不同电子设备。

Description

一种获取电池电量的方法、装置和电子设备 技术领域
本发明涉及电力电子技术领域，具体涉及一种获取电池电量的方法、装置和电子设备。
发明背景
随着电力电子技术的不断发展，电力电子产品种类层出不穷。其中，绝大多的电子产品都可以使用可充电电池。以可充电电池是锂电池为例，完成的锂电池的充电过程可以分为3部分：涓流充电、恒流充电，恒压充电。在整个充电过程中，电池的充电电压都会偏高，如实际电池电压是3.6V，充电时电池表现出的电压则可能是3.7V。在实际的电子设备使用过程中，例如：电子设备为手机，手表或者手环等在充电过程中都要随时更新显示电池电量。如果直接显示的电池电量为充电时测到的电池电压对应的电量，显示的电池电量就会偏大，甚至设备显示充满，但是实际电池电量并未达到显示的状态。现有技术中，通常采用待测量电池在未充电状态下实际电压与其在充电时的虚电压对应表，通过对应表将充电电压转化为实际电压，进而将对应实际电压对应的当前电池电量显示给用户。
在实际的电池电量的获取过程中，发明人发现现有技术至少存在以下问题：
现有技术中通过采用实际电压与虚电压对应表查询，确定待测充电电池的实际电量的方式，不但前期需要耗费大量人力来检测实际电压与虚电压，绘制电压对应表，且所述电压对应表容易受到检测环境的影响，导致误差较大，而且所述电压对应表的适用范围较小不能兼容不同电子设备。
发明内容
本发明提供了一种获取电池电量的方法、装置和电子设备，以解决现有技术中通过采用实际电压与虚电压对应表查询，确定待测充电电池的实际电量的方式，需要耗费大量人力资源，由于受到检测环境因素的影响而误差较大，且适用范围较小的问题。
根据本发明的一个方面，提供了一种获取电池电量的方法，该方法包括：
获取充电指令；
根据所述充电指令，获取待检测电池的放电电压值及其对应的电量和电压阈值；
根据所述待检测电池的放电电压值和所述电压阈值，获取所述待检测电池的充电电量；
根据所述待检测电池的放电电压值对应的电量及所述待检测电池的充电电量，获取所 述待检测电池的电量。
根据本发明的另一个方面，提供了一种获取电池电量的装置，该装置包括：
指令接收单元，用于获取充电指令；
信息获取单元，用于根据所述充电指令，获取待检测电池的放电电压值及其对应的电量和电压阈值；
充电电量获取单元，用于根据所述待检测电池的放电电压值和所述电压阈值，获取所述待检测电池的充电电量；
电池电量获取单元，用于根据所述待检测电池的放电电压值对应的电量及所述待检测电池的充电电量，获取所述待检测电池的电量。
根据本发明的又一个方面，提供了一种电子设备，该电子设备包括：如本发明另一个方面获取电池电量的装置。
本发明的有益效果是：本发明的这种获取电池电量的方法和装置，首先，根据充电指令，自动获取待检测电池的放电电压值及其对应的电量和电压阈值，然后根据所述待检测电池的放电电压值和所述电压阈值，获取所述待检测电池的充电电量；最后将所述待检测电池的充电电量与所述待检测电池的放电电压值对应的电量求和，获取到待检测电池的当前电量。此技术方案中获取待检测电池的当前电量都是根据实时获取所述待检测电池的充电电量进行实时更新，无需前期大量的人工检测，且本发明技术方案都是循环自动检测及更新，不会受到外界检测环境的影响，检测误差较小，即使在低温环境也能较精确地获取到待检测电池电量，避免现有技术中低温环境下，由于电路内阻变大，导致电池电压快速上升的问题。
其次，本发明的技术方案是根据所述待检测电池的放电电压值和所述电压阈值，获取所述待检测电池的充电电量。具体的讲，就是本发明技术方案会根据各种待检测电池的实际参数获取其待检测电池的充电电量，因此，本发明技术方案获取电池电量的方法和装置适用于各种充电电池。
另外，本发明还提供了一种电子设备，由于该电子设备包括了本发明的这种获取电池电量的装置，这样，电子设备中的应用可以根据所述获取电池电量的装置获取到的待检测电池的充电电量及待检测电池的电量对所述待检测电池的充电电量及电池当前电量进行显示，以便用户实时了解电子设备充电电池的充电情况，提高了用户体验。
结合附图阅读本申请实施方式的详细描述后，本申请的其他特点和优点将变得更加清楚。
附图简要说明
图1是本发明一个实施例的一种获取电池电量的方法的流程图；
图2是本发明一个实施例的一种获取电池电量的装置的结构框图；
图3是本发明一个实施例的一种电子设备的结构框图；
图4是本发明一个实施例的一种电池充电过程中电流随时间变化坐标示意图。
具体实施方式
电子设备在充电过程中获取实际电压对应的当前电池电量的一种现有技术是：通过采用实际电压与虚电压对应表查询，确定待测充电电池的实际电量的方式，不但前期需要耗费大量人力来检测实际电压与虚电压，绘制电压对应表，且所述电压对应表容易受到检测环境的影响，导致误差较大，而且所述电压对应表的适用范围较小不能兼容不同电子设备。
本发明的设计构思是：针对现有的前期需要耗费大量人力来检测实际电压与虚电压，绘制电压对应表，且所述电压对应表容易受到检测环境的影响，导致误差较大，而且所述电压对应表的适用范围较小不能兼容不同电子设备的问题，本发明技术方案根据充电指令，自动获取待检测电池的放电电压值及其对应的电量和电压阈值，然后根据所述待检测电池的放电电压值和所述电压阈值，获取所述待检测电池的充电电量；最后将所述待检测电池的充电电量与所述待检测电池的放电电压值对应的电量求和，获取到待检测电池的当前电量，无需前期大量的人工检测，且本发明技术方案都是自动检测及更新，不会受到外界检测环境的影响，检测误差较小。另外，针对现有技术中电压对应表的适用范围较小不能兼容不同电子设备问题，本发明的技术方案提出根据待检测电池的实际参数，进行待检测电池的充电电量的获取，适用于各种充电电池。
实施例一
图1是本发明一个实施例的一种获取电池电量的方法的流程图，参见图1，设本实施例中待检测电池为锂电池；锂电池充电过程(参见附图4)可以分为三部分：涓流充电、恒流充电，恒压充电；由于涓流充电的充电电流非常小，时间也很短，本实施例中将所述涓流充电电量忽略不计。本发明获取电池电量的方法包括步骤如下：
步骤S11，获取充电指令；
在本实施例中，所述充电指令用于启动获取电池电量的流程；通常由主板发出。
步骤S12，根据所述充电指令，获取待检测电池的放电电压值及其对应的电量和电压阈值；
在本实施中，所述待检测电池的放电电压值是所述待检测电池的当前实际电压值，其 对应的电量是实际当前充电电池的电量；所述电压阈值包括：下限电压阈值和上限电压阈值；其中，所述下限电压阈值通常为所述待检测电池无法输出电量的电压值；所述上限电压阈值通常为所述待检测电池的最大输出电量的电压值。
步骤S13，根据所述待检测电池的放电电压值和所述电压阈值，获取所述待检测电池的充电电量；
在本实施例中，根据所述电压阈值包括：下限电压阈值V下和上限电压阈值V上该步骤具体实现流程如下：
当所述待检测电池的放电电压值V0未达到所述下限电压阈值V下时，所述待检测电池的放电电压值V0对应的电量W0为所述待检测电池的剩余电量W剩；
当所述待检测电池的放电电压值V0达到所述下限电压阈值V下时，启动计时器T1，开始计时；
当所述待检测电池的放电电压值V0不小于所述下限电压阈值V下，且小于所述上限电压阈值V上时，所述计时器T1处于计时状态，获取恒流充电时间t1，获取所述待检测电池的恒流充电电量W1；
当所述待检测电池的放电电压值达V0到所述上限电压阈值V上时，结束所述计时器T1计时，同时启动计时器T3，开始计时；
当所述待检测电池的放电电压值V0不小于所述上限电压阈值V上时，所述计时器T3处于计时状态，获取所述恒压充电时间t3及所述待检测电池的恒压充电电量W3。
基于以上步骤，所述获取所述待检测电池的恒流充电电量W1的步骤，包括：
获取所述恒流充电时间t1及所述恒流充电电流I1；
根据所述恒流充电时间t1与所述恒流充电电流I1乘积，获取所述待检测电池的恒流充电电量W1，即W1＝I1*t1。
基于以上步骤，所述获取所述待检测电池的恒压充电电量W3的步骤，包括：
获取所述待检测电池的标称电量W标；
根据所述待检测电池的标称电量W标和所述待检测电池的恒流充电电流I1及待检测电池的恒流充电电量W1，获取恒压充电总时长T2和恒压充电总电量W2，即W2＝W标－W1＝I1*T2/2。
根据所述计时器T3记录的所述恒压充电时间t3，所述恒压充电总时长T2和所述恒压充电总电量W2，获取所述待检测电池的恒压充电电量W3。
需要说明的是，本实施例中将如图4所示的电池充电过程中电流随时间变化坐标示意 图中的恒压充电阶段等效为图4中左侧三角形，即W2＝W标－W1＝I1*T2/2，可以估算出恒压充电阶段需要的总时长T2。从恒流充电阶段转恒压充电阶段开始计时t3，根据所述计时器T3记录的所述恒压充电时间t3与所述恒压充电阶段需要的总时长T2的比例关系可以换算出所述恒压充电阶段的充电电量W3，即W3＝t32*I1/2T2；所述待检测电池当前的全部电量即为W＝W1+W3。
步骤S14，根据所述待检测电池的放电电压值对应的电量及所述待检测电池的充电电量，获取所述待检测电池的电量。
在本实施例中，该步骤具体实现如下：
当所述待检测电池的放电电压值V0不小于所述下限电压阈值V下，且小于所述上限电压阈值V上时，所述待检测电池的充电电量为待检测电池的恒流充电电量W1；
根据所述待检测电池的放电电压值对应的电量W0及所述待检测电池的恒流充电电量W1，获取所述待检测电池的电量W，即W＝W0+W1；
当所述待检测电池的放电电压值不小于所述上限电压阈值时，所述待检测电池的充电电量W充为待检测电池的恒流充电电量W1和所述待检测电池的恒压充电电量W3之和，即W充＝W1+W3；
根据所述待检测电池的放电电压值对应的电量W0及所述待检测电池的恒流充电电量W1和所述待检测电池的恒压充电电量W3之和，获取所述待检测电池的电量W，即W＝W0+W1+W3。
实施例二
图2是本发明一个实施例的一种获取电池电量的装置的结构框图，该获取电池电量的装置20包括：
指令接收单元201，用于获取充电指令；
信息获取单元202，用于根据所述充电指令，获取待检测电池的放电电压值及其对应的电量和电压阈值；
充电电量获取单元203，用于根据所述待检测电池的放电电压值和所述电压阈值，获取所述待检测电池的充电电量；
电池电量获取单元204，用于根据所述待检测电池的放电电压值对应的电量及所述待检测电池的充电电量，获取所述待检测电池的电量。
本实施例中，所述充电电量获取单元203，包括：
判断子单元，用于所述待检测电池的放电电压值是否达到所述电压阈值；
充电电量获取子单元，用于当所述待检测电池的放电电压值未达到所述下限电压阈值时，所述待检测电池的放电电压值对应的电量为所述待检测电池的剩余电量W剩；当所述待检测电池的放电电压值达到所述下限电压阈值时，启动计时器T1，开始计时；当所述待检测电池的放电电压值不小于所述下限电压阈值，且小于所述上限电压阈值时，所述计时器T1处于计时状态，获取恒流充电时间t1，获取所述待检测电池的恒流充电电量W1；当所述待检测电池的放电电压值达到所述上限电压阈值时，结束所述计时器T1计时，同时启动计时器T3，开始计时；当所述待检测电池的放电电压值不小于所述上限电压阈值时，所述计时器T3处于计时状态，获取所述恒压充电时间t3及所述待检测电池的恒压充电电量W3。
本实施例中，所述充电电量获取子单元还用于获取所述恒流充电时间t1及所述恒流充电电流I1，根据所述恒流充电时间t1与所述恒流充电电流I1乘积，获取所述待检测电池的恒流充电电量W1。
本实施例中，所述充电电量获取子单元还用于获取所述待检测电池的标称电量W标；根据所述待检测电池的标称电量W标和所述待检测电池的恒流充电电流I1及待检测电池的恒流充电电量W1，获取恒压充电总时长T2和恒压充电总电量；根据所述计时器T3记录的所述恒压充电时间t3，所述恒压充电总时长T2和所述恒压充电总电量，获取所述待检测电池的恒压充电电量W3。
在本实施例中，所述电池电量获取单元，还用于当所述待检测电池的放电电压值不小于所述下限电压阈值，且小于所述上限电压阈值时，所述待检测电池的充电电量为待检测电池的恒流充电电量W1；根据所述待检测电池的放电电压值对应的电量及所述待检测电池的恒流充电电量W1之和，获取所述待检测电池的电量；当所述待检测电池的放电电压值不小于所述上限电压阈值时，所述待检测电池的充电电量为待检测电池的恒流充电电量W1和所述待检测电池的恒压充电电量W3之和；根据所述待检测电池的放电电压值对应的电量及所述待检测电池的恒流充电电量W1和所述待检测电池的恒压充电电量W3之和，获取所述待检测电池的电量。
需要说明的是，本实施例中的获取电池电量的装置的工作过程是与前述获取电池电量的方法的实现步骤相对应，因而本实施例中对获取电池电量的装置的工作过程此处不再赘述，具体可以参见本发明前述实施例的相关说明。
实施例三
图3是本发明一个实施例的一种电子设备的结构框图，参见图3，该电子设备30包括： 获取电池电量的装置301。该获取电池电量的装置301的实现原理和工作过程可以参见前述实施例三中对获取电池电量的装置20的详细说明。
本发明的有益效果是：本发明的这种获取电池电量的方法和装置，首先，根据充电指令，自动获取待检测电池的放电电压值及其对应的电量和电压阈值，然后根据所述待检测电池的放电电压值和所述电压阈值，获取所述待检测电池的充电电量；最后将所述待检测电池的充电电量与所述待检测电池的放电电压值对应的电量求和，获取到待检测电池的当前电量。此技术方案中获取待检测电池的当前电量都是根据实时获取所述待检测电池的充电电量进行实时更新，无需前期大量的人工检测，且本发明技术方案都是循环自动检测及更新，不会受到外界检测环境的影响，检测误差较小，即使在低温环境也能较精确地获取到待检测电池电量，避免现有技术中低温环境下，由于电路内阻变大，导致电池电压快速上升的问题。
其次，本发明的技术方案是根据所述待检测电池的放电电压值和所述电压阈值，获取所述待检测电池的充电电量。具体的讲，就是本发明技术方案会根据各种待检测电池的实际参数获取其待检测电池的充电电量，因此，本发明技术方案获取电池电量的方法和装置适用于各种充电电池。
另外，本发明还提供了一种电子设备，由于该电子设备包括了本发明的这种获取电池电量的装置，这样，电子设备中的应用可以根据所述获取电池电量的装置获取到的待检测电池的充电电量及待检测电池的电量对所述待检测电池的充电电量及电池当前电量进行显示，以便用户实时了解电子设备充电电池的充电情况，提高了用户体验。
以上已经描述了本发明的各实施例，上述说明是示例性的，并非穷尽性的，并且也不限于所披露的各实施例。在不偏离所说明的各实施例的范围和精神的情况下，对于本技术领域的普通技术人员来说许多修改和变更都是显而易见的。本文中所用术语的选择，旨在最好地解释各实施例的原理、实际应用或对市场中的技术改进，或者使本技术领域的其它普通技术人员能理解本文披露的各实施例。本发明的范围由所附权利要求来限定。

Claims (10)

  1. 一种获取电池电量的方法，其特征在于，该方法包括：
    获取充电指令；
    根据所述充电指令，获取待检测电池的放电电压值及其对应的电量和电压阈值；
    根据所述待检测电池的放电电压值和所述电压阈值，获取所述待检测电池的充电电量；
    根据所述待检测电池的放电电压值对应的电量及所述待检测电池的充电电量，获取所述待检测电池的电量。
  2. 根据权利要求1所述的方法，其特征在于，所述根据所述待检测电池的放电电压值和所述电压阈值，获取所述待检测电池的充电电量的步骤，包括：
    当所述待检测电池的放电电压值未达到所述下限电压阈值时，所述待检测电池的放电电压值对应的电量为所述待检测电池的剩余电量W剩；
    当所述待检测电池的放电电压值达到所述下限电压阈值时，启动计时器T1，开始计时；
    当所述待检测电池的放电电压值不小于所述下限电压阈值，且小于所述上限电压阈值时，所述计时器T1处于计时状态，获取恒流充电时间t1及所述待检测电池的恒流充电电量W1；
    当所述待检测电池的放电电压值达到所述上限电压阈值时，结束所述计时器T1计时，同时启动计时器T3，开始计时；
    当所述待检测电池的放电电压值不小于所述上限电压阈值时，所述计时器T3处于计时状态，获取恒压充电时间t3及所述待检测电池的恒压充电电量W3；
    其中，所述获取所述待检测电池的恒流充电电量W1的步骤，包括：
    获取所述恒流充电时间t1及所述恒流充电电流I1；
    根据所述恒流充电时间t1与所述恒流充电电流I1乘积，获取所述待检测电池的恒流充电电量W1。
  3. 根据权利要求2所述的方法，其特征在于，所述获取所述待检测电池的恒压充电电量W3的步骤，包括：
    获取所述待检测电池的标称电量W标；
    根据所述待检测电池的标称电量W标和所述待检测电池的恒流充电电流I1及待检测电池的恒流充电电量W1，获取恒压充电总时长T2和恒压充电总电量W2；
    根据所述计时器T3记录的所述恒压充电时间t3，所述恒压充电总时长T2和所述恒压充电总电量W2，获取所述待检测电池的恒压充电电量W3。
  4. 根据权利要求3所述的方法，其特征在于，所述根据所述待检测电池的放电电压值对应的电量及所述待检测电池的充电电量，获取所述待检测电池的电量的步骤，包括：
    当所述待检测电池的放电电压值不小于所述下限电压阈值，且小于所述上限电压阈值时，所述待检测电池的充电电量为待检测电池的恒流充电电量W1；
    根据所述待检测电池的放电电压值对应的电量及所述待检测电池的恒流充电电量W1之和，获取所述待检测电池的电量；
    当所述待检测电池的放电电压值不小于所述上限电压阈值时，所述待检测电池的充电电量为待检测电池的恒流充电电量W1和所述待检测电池的恒压充电电量W3之和；
    根据所述待检测电池的放电电压值对应的电量及所述待检测电池的恒流充电电量W1和所述待检测电池的恒压充电电量W3之和，获取所述待检测电池的电量。
  5. 一种获取电池电量的装置，其特征在于，该装置包括：
    指令接收单元，用于获取充电指令；
    信息获取单元，用于根据所述充电指令，获取待检测电池的放电电压值及其对应的电量和电压阈值；
    充电电量获取单元，用于根据所述待检测电池的放电电压值和所述电压阈值，获取所述待检测电池的充电电量；
    电池电量获取单元，用于根据所述待检测电池的放电电压值对应的电量及所述待检测电池的充电电量，获取所述待检测电池的电量。
  6. 根据权利要求5所述的装置，其特征在于，所述充电电量获取单元，包括：
    判断子单元，用于所述待检测电池的放电电压值是否达到所述电压阈值；
    充电电量获取子单元，用于当所述待检测电池的放电电压值未达到所述下限电压阈值时，所述待检测电池的放电电压值对应的电量为所述待检测电池的剩余电量W剩；当所述待检测电池的放电电压值达到所述下限电压阈值时，启动计时器T1，开始计时；当所述待检测电池的放电电压值不小于所述下限电压阈值，且小于所述上限电压阈值时，所述计时器T1处于计时状态，获取恒流充电时间t1及所述待检测电池的恒流充电电量W1；当所述待检测电池的放电电压值达到所述上限电压阈值时，结束所述计时器T1计时，同时启动计时器T3，开始计时；当所述待检测电池的放电电压值不小于所述上限电压阈值时，所述计时器T3处于计时状态，获取所述恒压充电时间t3及所述待检测电池的恒压充电电量 W3。
  7. 根据权利要求6所述的装置，其特征在于，所述充电电量获取子单元还用于获取所述恒流充电时间t1及所述恒流充电电流I1，根据所述恒流充电时间t1与所述恒流充电电流I1乘积，获取所述待检测电池的恒流充电电量W1。
  8. 根据权利要求7所述的装置，其特征在于，所述充电电量获取子单元还用于获取所述待检测电池的标称电量W标；根据所述待检测电池的标称电量W标和所述待检测电池的恒流充电电流I1及待检测电池的恒流充电电量W1，获取恒压充电总时长T2和恒压充电总电量W2；根据所述计时器T3记录的所述恒压充电时间t3，所述恒压充电总时长T2和所述恒压充电总电量W2，获取所述待检测电池的恒压充电电量W3。
  9. 根据权利要求8所述的装置，其特征在于，所述电池电量获取单元，还用于当所述待检测电池的放电电压值不小于所述下限电压阈值，且小于所述上限电压阈值时，所述待检测电池的充电电量为待检测电池的恒流充电电量W1；根据所述待检测电池的放电电压值对应的电量及所述待检测电池的恒流充电电量W1之和，获取所述待检测电池的电量；当所述待检测电池的放电电压值不小于所述上限电压阈值时，所述待检测电池的充电电量为待检测电池的恒流充电电量W1和所述待检测电池的恒压充电电量W3之和；根据所述待检测电池的放电电压值对应的电量及所述待检测电池的恒流充电电量W1和所述待检测电池的恒压充电电量W3之和，获取所述待检测电池的电量。
  10. 一种电子设备，其特征在于，该电子设备包括：权利要求5-9中任意一项所述获取电池电量的装置。
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