CN108303650A - A kind of measuring method and system based on the rechargeable battery remaining charging time - Google Patents

A kind of measuring method and system based on the rechargeable battery remaining charging time Download PDF

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Publication number
CN108303650A
CN108303650A CN201711287404.3A CN201711287404A CN108303650A CN 108303650 A CN108303650 A CN 108303650A CN 201711287404 A CN201711287404 A CN 201711287404A CN 108303650 A CN108303650 A CN 108303650A
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China
Prior art keywords
rechargeable battery
battery remaining
charging time
current
equipment
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CN201711287404.3A
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Chinese (zh)
Inventor
周国华
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Shenzhen Nestle Holdings Ltd
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Shenzhen Nestle Holdings Ltd
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Priority to CN201711287404.3A priority Critical patent/CN108303650A/en
Publication of CN108303650A publication Critical patent/CN108303650A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/3644Constructional arrangements
    • G01R31/3648Constructional arrangements comprising digital calculation means, e.g. for performing an algorithm
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/382Arrangements for monitoring battery or accumulator variables, e.g. SoC

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

Abstract

The invention discloses a kind of measuring methods based on the rechargeable battery remaining charging time comprising following steps:System detectio starts LRCE flows afterwards in place to equipment charge, if equipment charge does not complete, whether the increment for detecting current rechargeable battery remaining capacity is more than predetermined threshold value;If more than the predetermined threshold value, then the rechargeable battery current residual electricity and current time are obtained respectively, and be assigned to described SOCend, Tend respectively;The equipment remaining charging time is obtained by the remaining charging time calculation formula of equipment.A kind of calculating system based on the rechargeable battery remaining charging time comprising:MCU, display module, adapter detection module.A kind of calculating system based on the rechargeable battery remaining charging time comprising:Initialization module, charging detecting model, remaining charging time computing module.It improves user experience with good transplantability, and user is facilitated to understand charge information in time, is widely used in charging field.

Description

A kind of measuring method and system based on the rechargeable battery remaining charging time
Technical field
The present invention relates to charging fields, specially measuring method and system based on the rechargeable battery remaining charging time.
Background technology
LRCE:Last Recently Charging Efficiency, nearest time charge efficiency.
With the development of lithium battery charging technique, rapid nitriding is obtained in Intelligent mobile terminal device and is answered extensively With.To embody the advantage of mobile terminal device quick charge, improving user experience, in charging process, Intelligent mobile is whole End equipment would generally show the lithium battery remaining charging time in user interface.
Intelligent terminal equipment generally use the following two kinds method calculates the lithium battery remaining charging time at present:
1) maximum allowable according to mobile terminal device lithium battery available capacity, current remaining capacity and mobile terminal device Charging current is calculated by formula 1:
T=FCC* (1-SOC)/Imax+0.5 formula 1
Wherein:FCC:Lithium battery available capacity;SOC:Lithium battery current residual electricity;Imax:Mobile terminal device is maximum Allow charging current, the value usually related to type of adapter;Such as:For the lithium battery that available capacity is 4000mah, if Current lithium battery remaining capacity is 20%, and the maximum allowable charging current of mobile terminal device is 2000mA, then can be with by formula 1 Calculate mobile terminal device lithium battery remaining charging time t=4000*0.8/2000+0.5=2.6h;
2) the maximum allowable charging current of mobile terminal device in above-mentioned formula 1 is replaced with into lithium battery mean charging current, Then it is estimated by formula 2:
T=FCC* (1-SOC)/Iavg+0.5 formula 2
FCC:Lithium battery available capacity;Iavg:System mean charging current;Generally by sampling one group of mobile terminal device Then lithium battery instantaneous charge current presses the sampling period again, it is system mean charging current to calculate average value;
However, for method 1:In charging process, mobile terminal device itself can consume one part of current, and consume The factors such as the size of electric current and mobile terminal device current system load, running background software are related;Pass through type of adapter The maximum allowable charging current of mobile terminal device of acquisition is practical to be split up into:Mobile terminal device currently consumes electric current and movement Two parts of terminal device lithium battery charging current;Therefore, the lithium calculated according to the maximum allowable charging current of mobile terminal device There is very big error between remaining battery charging time and actual value;As the improvement to scheme 1, in precision, scheme 2 calculates The lithium battery remaining charging time improve a lot, but sampling system transient current needs to increase additional hardware circuit, causes Mobile terminal device hardware cost improve, therefore and not all mobile terminal device all support the function.
To sum up, it is necessary to be improved for the technology.
Invention content
In order to solve the above-mentioned technical problem, the object of the present invention is to provide a kind of based on the rechargeable battery remaining charging time Measuring method and system.
The technical solution adopted in the present invention is:
The present invention provides a kind of measuring method based on the rechargeable battery remaining charging time comprising following steps:
System detectio to equipment charge it is in place after, record current rechargeable battery remaining capacity SOC start, and start LRCE Flow records time started Tstart, while initializing rechargeable battery remaining capacity at the end of the LRCE flows respectively SOCend and end time Tend is SOCstart and Tstart;
If system detectio is not completed to the equipment charge, whether the increment for detecting current rechargeable battery remaining capacity is big In predetermined threshold value;The increment size of the wherein described battery dump energy is SOCend-SOCstart;
If the increment of current rechargeable battery remaining capacity is less than the predetermined threshold value, return described in previous step judgement Equipment whether charging complete;
If the increment of current rechargeable battery remaining capacity is more than the predetermined threshold value, the rechargeable battery is obtained respectively Current residual electricity and current time, and it is assigned to described SOCend, Tend respectively;
The equipment remaining charging time is obtained by the remaining charging time calculation formula of equipment;
System constantly updates the data obtained and repeats the above steps, until the system detectio is completed to equipment charge, then moves back Go out the LRCE flows.
As the improvement of the technical solution, the remaining charging time calculation formula of the equipment is:
T=(100-SOCend)/K
Wherein, K is the nearest time charge efficiency of rechargeable battery;
And K=(SOCend-SOCstart)/(Tend-Tstart).
As the improvement of the technical solution, the predetermined threshold value is 1%~2%.
As the improvement of the technical solution, when the equipment charge is completed, then the SOCend is 100%.
As the improvement of the technical solution, if the increment of system detectio to current rechargeable battery remaining capacity be less than it is described pre- Gating limit value after then postponing the t1 times, returns to previous step.
As the improvement of the technical solution, the t1 is 10s.
On the other hand, the present invention also provides a kind of calculating systems based on the rechargeable battery remaining charging time comprising: MCU, display module, adapter detection module, the output end of the MCU are connect with the input terminal of the display module;The MCU It is connect with the adapter detection module.
In another aspect, the present invention also provides a kind of calculating systems based on the rechargeable battery remaining charging time comprising:
It is remaining to record current rechargeable battery for executing after step system detects that equipment charge is in place for initialization module Electricity SOCstart, and start LRCE flows, time started Tstart is recorded, while initializing the LRCE flows knot respectively Rechargeable battery remaining capacity SOC end and end time Tend is SOCstart and Tstart when beam;
Charging detecting model, if not completed to the equipment charge for executing step system detectio, detection is currently filled Whether the increment of electric battery dump energy is more than predetermined threshold value;The increment size of the wherein described battery dump energy is SOCend- SOCstart;
If the increment of current rechargeable battery remaining capacity is less than the predetermined threshold value, previous step is returned to, and judge The equipment whether charging complete;
Remaining charging time computing module, if for executing the increment of the current rechargeable battery remaining capacity of step more than described Predetermined threshold value then obtains the rechargeable battery current residual electricity and current time respectively, and is assigned to respectively described SOCend、Tend;
The equipment remaining charging time is obtained by the remaining charging time calculation formula of equipment;
System constantly updates the data obtained and repeats the above steps, until the system detectio is completed to equipment charge, then moves back Go out the LRCE flows.
Further, further include delay control module, if surplus to current rechargeable battery for executing step system detectio The increment of remaining electricity is less than the predetermined threshold value, then after postponing the t1 times, returns to previous step and judge whether equipment has charged At.
The beneficial effects of the invention are as follows:Measuring method provided by the invention based on the rechargeable battery remaining charging time and it is System, utilizes the nearest time charge efficiency LRCE of mobile terminal device (LRC Last Recently Charging Efficiency), the mobile terminal device remaining charging time is calculated;And in charging process, by tracking the nearest period The variation of charge efficiency updates the remaining charging time of mobile terminal device, until charging cycle terminates.This method is to mobile whole End equipment hardware circuit is while unrelated with mobile terminal device software platform without particular/special requirement, has good transplantability, application Range is wide, and improves user experience.
Description of the drawings
The specific implementation mode of the present invention is described further below in conjunction with the accompanying drawings:
Fig. 1 is the control flow chart of first embodiment of the invention;
Fig. 2 is the system schematic of second embodiment of the invention;
Fig. 3 is the system schematic of third embodiment of the invention.
Specific implementation mode
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase Mutually combination.
Referring to Fig.1, the present invention provides a kind of measuring method based on the rechargeable battery remaining charging time comprising following step Suddenly:
System detectio to equipment charge it is in place after, record current rechargeable battery remaining capacity SOC start, and start LRCE Flow records time started Tstart, while initializing rechargeable battery remaining capacity at the end of the LRCE flows respectively SOCend and end time Tend is SOCstart and Tstart;
If system detectio is not completed to the equipment charge, whether the increment for detecting current rechargeable battery remaining capacity is big In predetermined threshold value;The increment size of the wherein described battery dump energy is SOCend-SOCstart;
If the increment of current rechargeable battery remaining capacity is less than the predetermined threshold value, return described in previous step judgement Equipment whether charging complete;
If the increment of current rechargeable battery remaining capacity is more than the predetermined threshold value, the rechargeable battery is obtained respectively Current residual electricity and current time, and it is assigned to described SOCend, Tend respectively;
The equipment remaining charging time is obtained by the remaining charging time calculation formula of equipment;
System constantly updates the data obtained and repeats the above steps, until the system detectio is completed to equipment charge, then moves back Go out the LRCE flows.
As the improvement of the technical solution, the remaining charging time calculation formula of the equipment is:
T=(100-SOCend)/K
Wherein, K is the nearest time charge efficiency of rechargeable battery;
And K=(SOCend-SOCstart)/(Tend-Tstart).
As the improvement of the technical solution, the predetermined threshold value is 1%~2%.
As the improvement of the technical solution, when the equipment charge is completed, then the SOCend is 100%.
As the improvement of the technical solution, if the increment of system detectio to current rechargeable battery remaining capacity be less than it is described pre- Gating limit value after then postponing the t1 times, returns to previous step.
As the improvement of the technical solution, the t1 is 10s.
The charging equipment of this programme includes all kinds of rechargeable devices such as mobile phone, computer comprising all kinds of rechargeable batteries, such as lithium Battery etc..
It is set based on nearest time charge efficiency LRCE (Last Recently Charging) computational intelligence mobile terminal The flow in standby residue charging time is shown referring to Fig.1.
The LRCE flow Detailed operating procedures of this programme are as follows:
1, system detectio to equipment charge it is in place after, start LRCE flows;Lithium battery is current when record LRCE flows start Remaining capacity SOC start, and time started Tstart;Simultaneously by lithium battery remaining capacity at the end of label L RCE flows SOCend and end time Tend are initialized as SOCstart, Tstart respectively;
2, whether the charging of detection mobile terminal device is completed;If charging complete, LRCE flows are exited;Otherwise it jumps to Next step;
When mobile terminal device charging complete, the lithium battery remaining capacity that terminates of label mobile terminal device LRCE flows Whether SOCend will be 100%, therefore can be 100% judgement mobile terminal device charged state by detecting SOCend;
Whether the increment Delta SOC for 3, detecting current lithium battery house remaining capacity are more than predetermined threshold value Step (usually It is 1%~2%);If it is less than predetermined threshold value Step, then after postponing a period of time (being usually 10s), step 2 is again returned to; Otherwise next step is jumped to;
Wherein, the increment Delta SOC values of lithium battery remaining capacity are SOCend-SOCstart;
4, lithium battery current residual electricity and current time are obtained, is assigned to SOCend, Tend respectively;Then basis Formula 3 calculates the mobile terminal setting remaining charging time:
T=(100-SOCend)/K formula 3
(K=(SOCend-SOCstart)/(Tend-Tstart))
Wherein K is the nearest time charge efficiency of lithium battery;
5, lithium battery current residual electricity SOCstart when record LRCE flows start, and time started are constantly updated Tstart is respectively SOCend, Tend, then jumps to step 2.
With reference to Fig. 2, the present invention also provides a kind of calculating systems based on the rechargeable battery remaining charging time comprising: MCU, display module, adapter detection module, the output end of the MCU are connect with the input terminal of the display module;The MCU It is connect with the adapter detection module.Processor after the power is turned on, starts adapter detection module, is detected in place for adapter; After adapter detection module detects that adapter is in place, pass through external interrupt mode notifier processes device;Processor starts LRCE Method carries out the calculating of remaining battery charging time;After LRCE methods update SOC Start and current time Tstart, call Display module external interface, more new user interface remaining battery charging time.
With reference to Fig. 3, the present invention also provides a kind of calculating systems based on the rechargeable battery remaining charging time comprising:
It is remaining to record current rechargeable battery for executing after step system detects that equipment charge is in place for initialization module Electricity SOCstart, and start LRCE flows, time started Tstart is recorded, while initializing the LRCE flows knot respectively Rechargeable battery remaining capacity SOC end and end time Tend is SOCstart and Tstart when beam;
Charging detecting model, if not completed to the equipment charge for executing step system detectio, detection is currently filled Whether the increment of electric battery dump energy is more than predetermined threshold value;The increment size of the wherein described battery dump energy is SOCend- SOCstart;If the increment of current rechargeable battery remaining capacity is less than the predetermined threshold value, previous step is returned to, and judge The equipment whether charging complete;
Remaining charging time computing module, if for executing the increment of the current rechargeable battery remaining capacity of step more than described Predetermined threshold value then obtains the rechargeable battery current residual electricity and current time respectively, and is assigned to respectively described SOCend、Tend;The equipment remaining charging time is obtained by the remaining charging time calculation formula of equipment;System constantly updates gained Data simultaneously repeat the above steps, until the system detectio is completed to equipment charge, then exit the LRCE flows.
Further, further include delay control module, if surplus to current rechargeable battery for executing step system detectio The increment of remaining electricity is less than the predetermined threshold value, then after postponing the t1 times, returns to previous step and judge whether equipment has charged At.
The present invention has strict regulations in view of mobile terminal device running frequency, the adjustment time interval for starting CPU core number, Therefore, in adjacent frequency modulation twice, in the tune core period, mobile terminal device load has relative stability, i.e.,:In the period Interior, mobile terminal device load is not in significantly continuous fluctuation.In this case, the system power consumption of mobile terminal device It can preserve and stablize relatively.The present invention is based on this characteristics of mobile terminal device, utilize the nearest time charging effect of mobile terminal device Rate LRCE (LRC Last Recently Charging Efficiency) calculates the mobile terminal device remaining charging time;And And in charging process, by tracking the variation of nearest period charge efficiency, when updating the remaining charging of mobile terminal device Between, until charging cycle terminates.This method to mobile terminal device hardware circuit without particular/special requirement, while and mobile terminal device Software platform is unrelated, has good transplantability, has a wide range of application, and improve user experience, facilitates user to understand in time and fill Power information.
It is to be illustrated to the preferable implementation of the present invention, but the invention is not limited to the implementation above Example, those skilled in the art can also make various equivalent variations or be replaced under the premise of without prejudice to spirit of that invention It changes, these equivalent deformations or replacement are all contained in the application claim limited range.

Claims (9)

1. a kind of measuring method based on the rechargeable battery remaining charging time, which is characterized in that it includes the following steps:
System detectio to equipment charge it is in place after, record current rechargeable battery remaining capacity SOC start, and start LRCE flows, Record time started Tstart, at the same initialize respectively at the end of the LRCE flows rechargeable battery remaining capacity SOC end and End time Tend is SOCstart and Tstart;
If system detectio is not completed to the equipment charge, whether the increment for detecting current rechargeable battery remaining capacity is more than in advance Gating limit value;The increment size of the wherein described battery dump energy is SOCend-SOCstart;
If the increment of current rechargeable battery remaining capacity is less than the predetermined threshold value, returns to previous step and judge the equipment Whether charging complete;
If the increment of current rechargeable battery remaining capacity is more than the predetermined threshold value, it is current that the rechargeable battery is obtained respectively Remaining capacity and current time, and it is assigned to described SOCend, Tend respectively;
The equipment remaining charging time is obtained by the remaining charging time calculation formula of equipment;
System constantly updates the data obtained and repeats the above steps, until the system detectio is completed to equipment charge, then exits institute State LRCE flows.
2. the measuring method according to claim 1 based on the rechargeable battery remaining charging time, which is characterized in that described to set It is for residue charging time calculation formula:
T=(100-SOCend)/K
Wherein, K is the nearest time charge efficiency of rechargeable battery;
And K=(SOCend-SOCstart)/(Tend-Tstart).
3. the measuring method according to claim 1 or 2 based on the rechargeable battery remaining charging time, which is characterized in that institute It is 1%~2% to state predetermined threshold value.
4. the measuring method according to claim 3 based on the rechargeable battery remaining charging time, which is characterized in that when described When equipment charge is completed, then the SOCend is 100%.
5. the measuring method according to claim 4 based on the rechargeable battery remaining charging time, which is characterized in that if system It detects that the increment of current rechargeable battery remaining capacity is less than the predetermined threshold value, then after postponing the t1 times, returns to previous step Suddenly.
6. the measuring method according to claim 5 based on the rechargeable battery remaining charging time, which is characterized in that the t1 For 10s.
7. a kind of calculating system based on the rechargeable battery remaining charging time, which is characterized in that it includes:MCU, display module, Adapter detection module, the output end of the MCU are connect with the input terminal of the display module;The MCU and the adapter Detection module connects.
8. a kind of calculating system based on the rechargeable battery remaining charging time, which is characterized in that it includes:
Initialization module records current rechargeable battery remaining capacity for executing after step system detects that equipment charge is in place SOCstart, and start LRCE flows, time started Tstart is recorded, while being filled at the end of initializing the LRCE flows respectively Electric battery dump energy SOCend and end time Tend is SOCstart and Tstart;Charging detecting model, for executing If step system detectio is not completed to the equipment charge, whether the increment for detecting current rechargeable battery remaining capacity is more than in advance Gating limit value;
The increment size of the wherein described battery dump energy is SOCend-SOCstart;
If the increment of current rechargeable battery remaining capacity is less than the predetermined threshold value, previous step is returned to, and described in judgement Equipment whether charging complete;
Remaining charging time computing module, if the increment for executing the current rechargeable battery remaining capacity of step is more than described preset Threshold value then obtains the rechargeable battery current residual electricity and current time respectively, and be assigned to respectively the SOCend, Tend;
The equipment remaining charging time is obtained by the remaining charging time calculation formula of equipment;
System constantly updates the data obtained and repeats the above steps, until the system detectio is completed to equipment charge, then exits institute State LRCE flows.
9. the calculating system according to claim 8 based on the rechargeable battery remaining charging time, which is characterized in that it is also wrapped Delay control module is included, if the increment for executing step system detectio to current rechargeable battery remaining capacity is less than described preset Threshold value, then after postponing the t1 times, return previous step judge equipment whether charging complete.
CN201711287404.3A 2017-12-07 2017-12-07 A kind of measuring method and system based on the rechargeable battery remaining charging time Pending CN108303650A (en)

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CN114407727A (en) * 2022-01-24 2022-04-29 四川野马汽车股份有限公司 Method and system for estimating charging remaining time of electric automobile
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
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