CN107918102A - For obtaining the method and electric power controller of battery capacity percentage - Google Patents
For obtaining the method and electric power controller of battery capacity percentage Download PDFInfo
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- CN107918102A CN107918102A CN201710924460.7A CN201710924460A CN107918102A CN 107918102 A CN107918102 A CN 107918102A CN 201710924460 A CN201710924460 A CN 201710924460A CN 107918102 A CN107918102 A CN 107918102A
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- battery
- percentage
- electric quantity
- quantity metering
- electricity
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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]
- G01R31/3644—Constructional arrangements
- G01R31/3646—Constructional arrangements for indicating electrical conditions or variables, e.g. visual or audible indicators
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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]
- G01R31/367—Software therefor, e.g. for battery testing using modelling or look-up tables
Abstract
The present invention discloses a kind of method and electric power controller for being used to obtain battery capacity percentage, and this method includes：The first electric quantity metering for being used to measure battery capacity percentage is performed to the battery to operate；The information obtained by reference to the second electric quantity metering operation performed to the battery, is operated using first electric quantity metering and obtains battery capacity percentage；Wherein, the second electric quantity metering operation is different from first electric quantity metering operation.It can be realized using this method and all battery status are realized with high-precision estimation and high applicability, and only need to wait the less time to obtain correct battery capacity percentage.
Description
Technical field
The present invention relates to the acquisition of battery capacity, more particularly, to a kind of side for being used to obtain battery capacity percentage
Method and electric power controller.
Background technology
In general, polytype traditional electric quantity metering (fuel gauge) scheme is provided with present to estimate battery
Electricity percentage, particularly when battery reconnects to electric quantity metering device or is first connected to electric quantity metering device.No
Good fortune, since battery can be replaced, charges, discharges, handles or remain static, traditional scheme each has performance office
Limit；That is, the state of battery may be different in different time.For example, some traditional schemes can realize it is high
Estimated accuracy, but can only be realized when battery remains static for a long time.Though other traditional schemes can be applied to
All battery status, but it is difficult to reach higher estimated accuracy.Therefore, it is difficult to only with single traditional electric quantity metering scheme
High estimated accuracy and high applicability are realized to be directed to all battery status.
The content of the invention
In view of this, the present invention provides a kind of method and electric power controller for being used to obtain battery capacity percentage, with
High-precision estimation and high applicability are realized all battery status in realization.
According to the first aspect of the invention, a kind of method for obtaining battery capacity percentage is disclosed, including：To described
Battery performs the first electric quantity metering operation for being used to measure battery capacity percentage；By reference to the battery is performed second
The information that electric quantity metering operation obtains, is operated using first electric quantity metering and obtains battery capacity percentage；Wherein, described
The operation of two electric quantity meterings is different from first electric quantity metering and operates.
According to the second aspect of the invention, a kind of electric power controller for being used to obtain battery capacity percentage is disclosed,
Including：Storage device；Controller, the controller are coupled to the storage device, and are configured to load from the storage device
Program code, to perform such as the step of any of the above-described the method.
Method provided by the present invention is performing the battery the first electric quantity metering operation acquisition battery capacity percentage
Afterwards, the operation of the first electric quantity metering rapidly can be compensated or calibrated by the information of the second electric quantity metering operational measure, so that
Using the acquisition battery capacity percentage of the first electric quantity metering operation fast and accurately, it can be achieved that being realized to all battery status high
The estimation of precision and high applicability, while present invention only requires wait the less time to obtain correct battery capacity percentage
Than.
Read then with the detailed description of the preferred embodiment of different attached drawings displaying after, it is of the invention these and its
Its target undoubtedly will be apparent for those of ordinary skills.
Brief description of the drawings
Fig. 1 shows the flow chart for being used to obtain the method for battery capacity percentage according to a first embodiment of the present invention；
Fig. 2 is the schematic diagram according to electric power controller of the flow chart of Fig. 1 for obtaining battery capacity percentage；
Fig. 3 shows the flow chart for being used to obtain the method for battery capacity percentage according to a second embodiment of the present invention.
Fig. 4 A and Fig. 4 B are the first exemplary flow charts of method shown in Fig. 3；
Fig. 5 is the second exemplary flow chart of method shown in Fig. 3；
Fig. 6 A and 6B are the 3rd exemplary flow charts of method shown in Fig. 3；
Fig. 7, Fig. 8 and Fig. 9 are to be based on battery use/historical information, temporal information, aging factor and/or temperature information, really
The flow chart of embodiment under the different scenes of fixed or configuration battery initial quantity of electricity percentage.
Figure 10 shows that the first operation of the controller of electric quantity metering operation information of the use based on Coulomb meter in Fig. 2 is shown
The flow chart of example, the controller are used to perform the electric quantity metering operation based on voltage to obtain correct battery capacity percentage.
Figure 11 shows that the second operation of the controller of electric quantity metering operation information of the use based on Coulomb meter in Fig. 2 is shown
The flow chart of example, the controller are used to perform the electric quantity metering operation based on voltage to obtain correct battery capacity percentage.
Figure 12 shows that the 3rd operation of the controller of electric quantity metering operation information of the use based on Coulomb meter in Fig. 2 is shown
The flow chart of example, the controller are used to perform the electric quantity metering operation based on voltage to obtain correct battery capacity percentage.
Embodiment
In description and subsequent claims specific components are referred to using particular term all the time.As this area
What technical staff was recognized, manufacturer can refer to component with different titles.This document has no intention to distinguish those titles not
With but the identical component of function.In the following specification and claim, term "comprising" and " comprising " are used for open
Type, therefore should be construed as to imply that " include, but are not limited to ... ".In addition, term " coupling " be intended to indicate that it is indirect or straight
The electrical connection connect.Therefore, if an equipment is coupled to another equipment, which can directly be electrically connected, or via
Miscellaneous equipment and the indirect electrical connection of connection.
Please refer to Fig.1, Fig. 1 is that the electricity of battery can accurately be measured/measured to the first embodiment for representing the present invention
The flow chart of the method for (particularly remaining capacity).This method can significantly improve the accurate of the battery percentage measurement of battery
Property.It should be noted that the battery capacity percentage in presently filed embodiment is by depth of discharge (DOD, depth-of-
Discharge) represent.This is not limitation of the present invention because battery capacity percentage can also by charged state (SOC,
State-of-charge) represent, charged state is the supplement of depth of discharge.This method is arranged to use and performs two kinds
Different electric quantity meterings is operated to generate two kinds of different information results, and every kind of information result includes the percentage represented by DOD
Than and with least one of both corresponding battery cell voltages of the percentage, wherein both different information results by regarding
For measurement result, and dynamically selected from the measurement result that two kinds of different electric quantity meterings operate according to the different situations of battery
Select one kind and be used as measurement result.In practice, this method is arranged to dynamically arrange/set at different conditions two kinds of electricity
The different confidence levels of metrological operation.In some cases, a kind of confidence level of electric quantity metering operation is configured as higher than another
A kind of confidence level of electric quantity metering operation, but it is configured as putting less than another electric quantity metering operation in other cases
Letter is horizontal.Therefore, by the grading of dynamic at different conditions/adjustment confidence level, this method can configure/measurement result is set
For the percentage operated with the electric quantity metering of higher confidence level.In addition, this method can be configured to putting based on them
Letter level selects a kind of measurement result of respective operations from least three kinds of electric quantity metering operations.The quantity of electric quantity metering operation is simultaneously
Non- is limitation of the present invention.
In embodiments, both different electric quantity meterings operations include the first electric quantity metering and operate (such as based on electricity
The electric quantity metering operation of pressure) and the second electric quantity metering operation (such as electric quantity metering operation based on Coulomb meter).Based on voltage
Metrological operation is using sensing resistance and measures the ohmically pressure drop of sensing, to estimate the electric current of battery, so as to measure the surplus of battery
Remaining electricity simultaneously obtains the first information, which is included by DOD corresponding first percentages represented and corresponding to the first percentage
It is at least one in first battery cell voltage of ratio.Electric quantity metering operation based on Coulomb meter is surveyed using coulomb counting circuit
The electric current of battery is measured, so as to measure the remaining capacity of battery and obtain the second information, which includes the phase represented by DOD
Answer the second percentage and corresponding at least one in the second battery cell voltage of the second percentage.This method can improve biography
System scheme, and operate the excellent of both according to using the electric quantity metering operation based on voltage and the electric quantity metering based on Coulomb meter
Gesture, it is more accurate to be provided to the user under the different conditions such as temperature, aging factor, battery history even if battery operation
Electric quantity metering result.
It should be noted that it is based on the first information and the second information to determine which percentage as the electricity percentage of battery
Determine.In practice, the first percentage can be based on and the second percentage performs and determines operation；Furthermore it is possible to based on the first electricity
Pool unit voltage and the second battery cell voltage, which perform, determines operation.Based on the first battery cell voltage and the second battery unit electricity
Pressure, which performs, determines that the advantage of operation is that in some cases, the excursion of respective battery cell voltage is than above-mentioned percentage
Excursion it is wider., can be with addition, by converting above-mentioned percentage based on look-up table to generate corresponding battery cell voltage
It is readily available corresponding battery cell voltage.
It as long as can realize essentially identical as a result, the sequencing shown in Fig. 1 the step of flow chart can be not required to strictly
In the order shown and need not be continuous, that is to say, that centre there can be other steps.The detailed step of Fig. 1 is as follows.
Step 105：Start；
Step 110：Determine whether to reevaluate or recalculate the electricity percentage of batteryIf so, perform step
120, otherwise, continue step 115；
Step 115：Ohmically pressure drop is sensed to estimate the electric current of battery by using sensing resistance and measurement, performs base
Operated in the electric quantity metering of voltage, so as to measure the residual power percentage of battery and generate the first percentage；
Step 120：The electric current of battery is measured by using Coulomb meter circuit, performs the electric quantity metering behaviour based on Coulomb meter
Make, so as to measure the residual power percentage of battery and generate the second percentage；
Step 125：Compare and calculate the percent difference between the first percentage and the second percentage；
Step 130：Determine whether the percent difference is higher than percentage thresholdIf percent difference is higher than percentage threshold,
Then the confidence level of the electric quantity metering operation based on voltage is configured as the confidence higher than the electric quantity metering operation based on Coulomb meter
Level, and flow further performs step 120；Otherwise, the confidence level of the electric quantity metering operation based on voltage is configured as
Less than the confidence level of the electric quantity metering operation based on Coulomb meter, flow proceeds to step 115.
In step 110, can be by determining whether battery in inactive state has kept a special time period to determine
Whether reevaluate or recalculate the operation of the electricity percentage of battery, inactive state refer to when battery in a static condition when
Battery does not provide electric current to system or provides seldom electric current.If battery has maintained special time period in the static conditions,
This method is arranged to determine that battery has been rested the special time period, and this method can be reevaluated or recalculated
The electricity percentage of battery, to calculate current electricity percentage.Then, step 120 is proceeded to.In the step 120, Coulomb meter
Circuit is used to measure/accumulate the electric current of battery in interim time, so as to measure the electricity percentage of battery.
It should be noted that this method is arranged to estimate or calculates the initial quantity of electricity percentage of battery in step 105, because
, when the system reboot being battery powered, method enters step 115 for this.In step 115, by using AC (exchange) resistance
Device simultaneously measures the ohmically pressure drops of AC to estimate the electric current of battery, performs the electric quantity metering operation based on voltage, works as so as to measure
The preceding battery capacity percentage represented by DOD or SOC.The change of pressure drop can reflect the change of battery current, therefore the party
Method can be according to the DOD percentages of the measure of the change present battery of pressure drop.
In step 125 and step 130, method is arranged to dynamically and selectively from the electric quantity metering based on Coulomb meter
Operation and based on voltage electric quantity metering operation two measurement results in select one.This method is arranged to compare and calculates
Percent difference between two percentages, then determines whether percent difference is higher than percentage threshold.If percent difference is higher than
Percentage threshold, this method determine the reliability of the electric quantity metering operation based on Coulomb meter less than the electric quantity metering behaviour based on voltage
The reliability of work, and correspondingly, the confidence level of the electric quantity metering operation based on Coulomb meter is arranged to relatively low value.Phase
Instead, if percent difference is less than percentage threshold, this method determines that the reliability of the electric quantity metering operation based on Coulomb meter is higher than
The reliability of electric quantity metering operation based on voltage, and correspondingly, the confidence level of the electric quantity metering operation based on Coulomb meter
It is arranged to higher value.By doing so, this method can effectively assess the electric quantity metering operation based on Coulomb meter and be based on
Voltage electric quantity metering operation reliability, and it is thus determined that one kind in two kinds of measurement results as battery capacity percentage knot
Fruit.Since two kinds of different electric quantity metering operations have different advantages, accuracy and measuring condition, by optionally using
As final result, this method can obtain the advantages of both different electric quantity meterings operate and avoid a kind of measurement result
Their limitation.For example, if battery has been maintained at static conditions, this method can use the electric quantity metering based on Coulomb meter
The percentage of operation is as final battery capacity percentage.If battery is not held in static conditions, this method can adopt
The percentage operated by the use of the electric quantity metering based on voltage is used as final battery capacity percentage.That is, this method is set
Being set to can use both different electric quantity meterings to operate and be dynamically selected what both different electric quantity meterings operated
One measurement result is as final result.Therefore, this method can improve the accuracy of final measurement and be shown for user
Show the final measurement of battery capacity percentage.
In another embodiment, for step 125, this method could be provided as comparing and calculate the first battery unit
Voltage difference between voltage and the second battery cell voltage.For step 130, this method could be provided as whether determining voltage difference
Higher than voltage threshold.If voltage difference is higher than voltage threshold, the confidence level of the electric quantity metering operation based on voltage is configured as
Higher than the confidence level of the electric quantity metering operation based on Coulomb meter.Otherwise, the confidence level of the electric quantity metering operation based on voltage
It is configured as the confidence level less than the electric quantity metering operation based on Coulomb meter.
In addition, if the confidence level of the electric quantity metering operation based on voltage is higher than the electric quantity metering operation based on Coulomb meter
Confidence level and exceeded high threshold (or if the percent difference between two percentages is higher than high percentage threshold),
This means based on voltage electric quantity metering operation measurement result become relatively reliable, in this case, should hold again
Electric quantity metering of the row based on Coulomb meter is operated to measure the electricity percentage of battery, generates the electric quantity metering based on Coulomb meter again
The percentage result of operation, and reappraise the confidence level of the electric quantity metering operation based on Coulomb meter.This equivalent to pass through ginseng
Examining the measurement result of the operation of the electric quantity metering based on voltage improves the accuracy of the electric quantity metering operation based on Coulomb meter.Equally
, if based on confidence level of the confidence level that the electric quantity metering of Coulomb meter operates higher than the electric quantity metering operation based on voltage
And high threshold (or if the percent difference between two percentages is higher than high percentage threshold) is exceeded, it means that base
Become relatively reliable in the measurement result that the electric quantity metering of Coulomb meter operates, in this case, it should re-execute based on electricity
The electric quantity metering of pressure operates the percentage for measure the electricity percentage of battery, generating the electric quantity metering operation based on voltage again
As a result, and reappraise based on voltage electric quantity metering operation confidence level.This is equivalent to by reference to based on Coulomb meter
The measurement result of electric quantity metering operation improves the accuracy of the electric quantity metering operation based on voltage.
It can be performed by controller or microcontroller from memory devices (such as register circuit) and load corresponding journey
Sequence code, to perform the above method or at least one step.Fig. 2 be can be measured exactly according to the flow chart of Fig. 1/measure electricity
The block diagram of the electric power controller 200 of the remaining capacity in pond 201.Electric power controller 200 is couple to battery 201, including storage
Equipment 205 and controller 210, it can be realized by single integrated circuit chip.Storage device 205 is arranged to store or delays
Rush to the measurement result (that is, electricity percentage) for stating electric quantity metering operation and corresponding program code.Controller 210, which is couple to, to be deposited
Store up equipment 205 and be arranged to when enabling software application or system, from 205 loading procedure code of storage device, come
Two electric quantity metering operations are enabled and performed to estimate the electricity percentage of battery.Then controller 210 is arranged to perform journey
Sequence code is to perform the operation of above-mentioned steps.Which is not described herein again for further description.
In addition, in second embodiment of the present invention, there is provided can more accurately estimate/calculate the electricity percentage of battery
The method of ratio.Especially, when the system reboot or battery that are battery powered rested a period of time (complete resting state or
Static state) when, electricity percentage may, for example, be the depth of discharge percentage (but not limited to) of battery.In some embodiment party
Formula, electricity percentage can use charged state (SOC, state-of-charge) percentage to represent.More specifically, this method
The initial quantity of electricity percentage of battery is can be configured to estimate or measured, and the standard of the estimation of initial quantity of electricity percentage can be improved
True property, particularly when battery First Contact Connections to or when reconnecting to Coulomb meter circuit.This method is arranged to according to from such as
The confidence level that lower information is calculated or determined is exactly from previous electricity percentage, software estimation percentage and hard ware measure percentage
Initial quantity of electricity percentage of the electricity percentage as the battery is selected than in, which includes above-mentioned at least a pair hundred
Divide both voltage differences between the percent difference than between and at least a pair of of battery cell voltage corresponding with above-mentioned percentage
At least one of.That is, can be poor based on percent difference and/or corresponding battery cell voltage, select an electricity hundred
Ratio is divided to be used as initial quantity of electricity percentage.In addition, this method can optionally display for a user previous electricity in some cases
Percentage is to improve user experience, even if the initial quantity of electricity percentage of battery is determined as software estimation percentage or hardware is surveyed
Measure percentage.Fig. 3 is second embodiment of the invention exemplified with the method for the electricity that can measure/measure battery exactly
Flow chart.It as long as can realize essentially identical as a result, the sequencing shown in Fig. 3 the step of flow chart can be not required to strictly
In the order shown and need not be continuous, that is to say, that centre there can be other steps.The detailed step of Fig. 3 is as follows：
Step 305：Start；
Step 310：From the storage device (such as register circuit) positioned at the internal battery pack comprising the battery or outside
Read previous electricity percentage RTCP (or being nearest electricity percentage)；
Step 315：By using hardware circuit (such as Coulomb meter circuit), the hard ware measure percentage HWP of battery is generated,
Wherein hard ware measure percentage HWP can such as hardware open-circuit voltage measurement percentage；
Step 320：By using the software algorithm that can estimate battery capacity, the software estimation percentage of battery is generated
SWP, wherein software estimation percentage SWP can such as software open-circuit voltage estimation percentages；
Step 325：According in previous electricity percentage RTCP, hard ware measure percentage HWP, software estimation percentage SWP
Difference between at least a pair of of percentage, is calculated or determined previous electricity percentage RTCP, hard ware measure percentage HWP, software and estimates
Count the confidence level of percentage SWP；
Step 330：By reference to above-mentioned confidence level, from previous electricity percentage RTCP, hard ware measure percentage HWP,
A percentage is dynamically selected in software estimation percentage SWP as initial quantity of electricity percentage；
Step 335：Terminate.
For example, if the difference (or absolute difference) between hard ware measure percentage HWP and previous electricity percentage RTCP is remote high
In threshold value (such as 30%DOD), this method is arranged to determine that the confidence level of previous electricity percentage RTCP is surveyed less than hardware
Measure percentage HWP.In addition, if the difference (or absolute difference) between software estimation percentage SWP and previous electricity percentage RTCP
Far above threshold value (such as 10%DOD), this method is arranged to determine the confidence level of software estimation percentage SWP higher than previous
The confidence level of electricity percentage RTCP.In addition, if between hard ware measure percentage HWP and software estimation percentage SWP
Poor (or absolute difference) is far above threshold value (such as 30%), and this method is arranged to determine the confidence water of software estimation percentage SWP
The flat confidence level higher than hard ware measure percentage HWP.In addition, if battery is not connected to charger device, is not adjusted
/ preset, and/or previous electricity percentage RTCP is not accessed/is changed to handle, then this method can improve previous electricity percentage
The confidence level of RTCP.In addition, if software estimation percentage SWP is less than relatively low threshold value (such as 3%DOD), this method can
To improve the confidence level of software estimation percentage SWP.Therefore, by referring to previous electricity percentage RTCP, hard ware measure
The confidence level of percentage HWP and software estimation percentage SWP carry out at least one step commented etc., configure or adjusted, the party
Method can select the initial quantity of electricity percentage as battery from three percentage correspondingly and exactly.In detail below
Ground provides the embodiment of several modifications.
In addition, in the another embodiment of step 325, this method can be configured to, according to these three percentages
Than in corresponding battery cell voltage it is at least a pair of between voltage difference, previous electricity percentage RTCP, hardware is calculated or determined
Measure the confidence level of percentage HWP and software estimation percentage SWP.
Fig. 4 A and Fig. 4 B are the flow charts for the first embodiment for showing method shown in Fig. 3.As long as it can realize basic phase
With as a result, the sequencing shown in Fig. 4 A and Fig. 4 B the step of flow chart can be not required in strict accordance with shown order and be not required to
It is if continuous, that is to say, that centre can have other steps.The detailed step of Fig. 4 A and Fig. 4 B are as follows：
Step 405：Start；
Step 410：If charger is connected with battery, stop/disabling the charger；
Step 415：Hardware metrological operation is performed to obtain hard ware measure percentage HWP, performs software metering operation to obtain
Software estimation percentage SWP is obtained, previous electricity percentage RTCP is read from storage device；
Step 420：Determine whether battery is replaced.If battery is not replaced, continue step 425；Otherwise, then continue
Step 455；
Step 425：Determine whether present battery is connected to charger device.If battery is not connected to charger and sets
It is standby, then continue to execute step 430；Otherwise, step 455 is performed；
Step 430：Determine whether to use previous electricity percentage RTCP as initial quantity of electricity percentage.If it is determined that previously
Electricity percentage RTCP, which is not used in, sets initial quantity of electricity percentage, continues to execute step 435；Otherwise, step 440 is performed；
Step 435：The confidence level or software estimation percentage SWP confidence levels for setting hard ware measure percentage HWP be
Highest level, and it is hard ware measure percentage HWP or software estimation percentage SWP to configure initial quantity of electricity percentage；
Step 440：Determine whether software estimation percentage SWP is less than Low threshold.If software estimation percentage SWP is less than
Low threshold (such as 3%DOD), continues to execute step 445；Otherwise, step 450 is performed；
Step 445：The confidence level for setting software estimation percentage SWP is highest level, and configures initial quantity of electricity hundred
It is software estimation percentage SWP to divide ratio, displays for a user previous electricity percentage RTCP to indicate to the user that and previous electricity hundred
Divide the initial quantity of electricity percentage more equal than RTCP, without showing software estimation percentage SWP, shown hence for battery capacity
The fluency of user experience；
Step 450：The confidence level for setting previous electricity percentage RTCP is highest level, and configures initial quantity of electricity hundred
Point than for previous electricity percentage RTCP, displaying for a user previous electricity percentage RTCP；
Step 455：Absolute difference between computing hardware measurement percentage HWP and previous electricity percentage RTCP, and really
Whether the fixed absolute difference is higher than specific threshold value；If absolute difference is higher than specific threshold value (such as 30%DOD), continue to hold
Row step 460；Otherwise, step 465 is performed；
Step 460：Computing hardware measurement percentage HWP and software estimation percentage SWP between the first absolute difference with
And the second absolute difference between software estimation percentage SWP and previous electricity percentage RTCP, and determine the first absolute difference
Whether the second absolute difference is less than；If so, starting to perform step 470, otherwise, step 465 is performed；
Step 465：Absolute difference between software for calculation estimation percentage SWP and previous electricity percentage RTCP, and really
Whether the fixed absolute difference is more than threshold value (such as 10 ± 1%)；If greater than the threshold value, start to perform step 475；Otherwise, perform
Step 430；
Step 470：Absolute difference between computing hardware measurement percentage HWP and software estimation percentage SWP, and determine
Whether the absolute difference is more than threshold value (such as 15%)；If greater than the threshold value, start to perform step 480；Otherwise, step is performed
485；
Step 475：Software for calculation estimation percentage SWP and previous electricity percentage RTCP between the 3rd absolute difference with
And the 4th absolute difference between software estimation percentage SWP and nominal cell percentage VBATP, and determine the 3rd absolute difference
Whether the 4th absolute difference is higher than；If so, starting to perform step 480, otherwise, step 430 is performed；
Step 480：The confidence level for setting software estimation percentage SWP is highest level, and configures initial quantity of electricity percentage
Than for software estimation percentage SWP, and display for a user software estimation percentage SWP；
Step 485：The confidence level for setting hard ware measure percentage HWP is highest level, and configures initial quantity of electricity percentage
Than for hard ware measure percentage HWP, and display for a user hard ware measure percentage HWP；
Step 490：Terminate.
Fig. 5 is the flow chart for the second embodiment for showing method shown in Fig. 3.As long as it can realize essentially identical knot
Fruit, the sequencing shown in Fig. 5 the step of flow chart can be not required in strict accordance with shown order and need not be continuous,
That is centre can have other steps.The detailed step of Fig. 5 is as follows：
Step 505：Start；
Step 510：If charger is connected with battery, stop/disabling the charger；
Step 515：Hardware metrological operation is performed to obtain hard ware measure percentage HWP, performs software metering operation to obtain
Software estimation percentage SWP is obtained, previous electricity percentage RTCP is read from storage device；
Step 520：Determine whether battery is embedded in battery pack.If be built-in in battery pack, step is continued to execute
Rapid 525；Otherwise, then step 530 is continued；
Step 525：It is embedded electricity percentage to configure initial quantity of electricity percentage；
Step 530：Determine whether battery is replaced.If battery is not replaced, continue step 535；Otherwise, then continue
Step 540；
Step 535：Determine whether present battery is connected to charger device.If battery is not connected to charger and sets
It is standby, then continue to execute step 525；Otherwise, step 545 is performed；
Step 540：Configuration circulating battery (battery cycle) is zero and the circulation of Coulomb meter circuit is zero；
Step 545：Absolute difference between computing hardware measurement percentage HWP and previous electricity percentage RTCP, and really
Whether the fixed absolute difference is higher than specific threshold value；If absolute difference is higher than the specific threshold value (such as 30%DOD), continue
Perform step 550；Otherwise, step 555 is performed；
Step 550：Computing hardware measurement percentage HWP and software estimation percentage SWP between the first absolute difference with
And the second absolute difference between software estimation percentage SWP and previous electricity percentage RTCP, and determine the first absolute difference
Whether the second absolute difference is less than；If so, starting to perform step 560, otherwise, step 555 is performed；
Step 555：The absolute difference between specified electric quantity percentage VBATP and previous electricity percentage RTCP is calculated, and
Determine whether the absolute difference is more than threshold value (such as 10%)；If greater than the threshold value, start to perform step 560；Otherwise, step is performed
Rapid 525；
Step 560：Absolute difference between computing hardware measurement percentage HWP and software estimation percentage SWP, and determine
Whether the absolute difference is more than threshold value (such as 15%)；If greater than the threshold value, start to perform step 565；Otherwise, step is performed
570；
Step 565：The confidence level for setting software estimation percentage SWP is highest level, and configures initial quantity of electricity hundred
It is software estimation percentage SWP to divide ratio, displays for a user software estimation percentage SWP；
Step 570：The confidence level for setting hard ware measure percentage HWP is highest level, and configures initial quantity of electricity percentage
Than for hard ware measure percentage HWP, and display for a user hard ware measure percentage HWP；
Step 575：Terminate.
Fig. 6 A and Fig. 6 B are the flow charts of the 3rd embodiment of the method shown in Fig. 3 that shows.As long as it can realize basic phase
With as a result, the sequencing shown in Fig. 6 A and Fig. 6 B the step of flow chart can be not required in strict accordance with shown order and be not required to
It is if continuous, that is to say, that centre can have other steps.The detailed step of Fig. 6 A and Fig. 6 B are as follows：
Step 605：Start；
Step 610：Determine whether to use previous electricity percentage RTCP as initial quantity of electricity percentage.It is if really previously electric
Amount percentage RTCP is not used in as initial quantity of electricity percentage, then performs step 615；Otherwise, step 630 is performed；
Step 615：Absolute difference between computing hardware measurement percentage HWP and software estimation percentage SWP, and determine
Whether the absolute difference is more than threshold value (such as 15%)；If greater than the threshold value, start to perform step 620；Otherwise, step is performed
625；
Step 620：The confidence level for setting software estimation percentage SWP is highest level, and configures initial quantity of electricity hundred
It is software estimation percentage SWP to divide ratio, software estimation percentage SWP is displayed for a user, to be indicated when system restarts
The electricity of battery；
Step 625：The confidence level for setting hard ware measure percentage HWP is highest level, and configures initial quantity of electricity percentage
Than for hard ware measure percentage HWP, and hard ware measure percentage HWP is displayed for a user, to refer to when system restarts
Show the electricity of battery；
Step 630：Determine whether previous electricity percentage RTCP is higher than software estimation percentage SWP.If previous electricity
Whether percentage RTCP is higher than software estimation percentage SWP, then starts to perform step 650；Otherwise, step 635 is performed；
Step 635：Determine whether battery is connected to or is inserted into now charger device.If battery is connected to charger
Equipment, performs step 645；Otherwise, step 640 is performed；
Step 640：Absolute difference between software for calculation estimation percentage SWP and previous electricity percentage RTCP, and really
Whether the fixed absolute difference is more than threshold value (such as 15% ± 1%)；If greater than 16% (or in some cases 14%), start
Perform step 650；Otherwise, step 645 is performed；
Step 645：The confidence level for setting previous electricity percentage RTCP is highest level, and configures initial quantity of electricity hundred
Point than for previous electricity percentage RTCP, previous electricity percentage RTCP being displayed for a user, to refer to when system restarts
Show the electricity of battery；
Step 650：Determine whether the absolute difference between software estimation percentage SWP and previous electricity percentage RTCP is big
In lower threshold (such as 10% ± 1%)；If greater than 11% (or in some cases 9%), start to perform step 655；It is no
Then, step 660 is performed；
Step 655：The confidence level for setting software estimation percentage SWP is highest level, and configures initial quantity of electricity hundred
Point ratio is software estimation percentage SWP, and displaying for a user previous electricity percentage RTCP, (or previous electricity percentage RTCP subtracted
Go 1%), to indicate the electricity of battery when system restarts；
Step 660：Determine whether software estimation percentage SWP is less than Low threshold (such as 3%)；If software estimation percentage
SWP is less than 3%, starts to perform step 655；Otherwise, step 645 is performed；
Step 665：Terminate.
The step of similarly, for Fig. 4 to Fig. 6, in other embodiments, this method could be provided as according to
In the corresponding battery cell voltage of these three percentages of RTCP, HWP and SWP it is at least a pair of between voltage difference, be calculated or determined
The confidence level of previous electricity percentage RTCP, hard ware measure percentage HWP and software estimation percentage SWP.With battery unit
The relevant corresponding operating of voltage (calculate and with threshold value comparison) is similar with these three percentage relevant operations, further retouches in detail
State and repeat no more.
In addition, in some embodiments, this method could be provided as based on battery use/historical information, temporal information,
Aging factor and/or temperature information etc. adjust the confidence level of above-mentioned three kinds of percentage.For example, this method can be by hard ware measure
The confidence level of percentage HWP rises to highest level, if temporal information show battery rested special time period (such as
30 minutes).That is, in this case, hard ware measure percentage HWP can directly be selected for use in setting initial electricity
Measure percentage.Therefore, this is being adjusted based on battery use/historical information, temporal information, aging factor and/or temperature information etc.
After the confidence level of three kinds of percentage, this method can set initial quantity of electricity percentage accordingly.If in addition, for example, detect
Be connected to the battery of charger device electric quantity consumption be less than low battery threshold value (such as 5mAH, but not limited to this), method can be with
The confidence level of adjustment.If in addition, for example, detect the voltage between new battery cell voltage and previous battery cell voltage
Difference be more than voltage threshold (such as 20mV, but not limited to this), this method can adjust confidence level.All these examples are not all
It is the limitation of the present invention.The state history that use/historical information of battery includes battery records.
Based on battery use/historical information, temporal information, aging factor and/or temperature information, this method can be more accurate
Determine or configuration battery initial quantity of electricity percentage.For example, in the first scene, as shown in fig. 7, this method is determined/detected
It is activated or activates to system and do not have charger to be connected with battery, i.e. is inserted into battery without charger.In this scene
In, this method is arranged to detect whether battery has been removed or has replaced.If detect that battery is not removed (step
705), this method is arranged to system down time (system off time) (step 710) of inspection/detection battery, with true
Determine whether system down time exceedes special time period, such as 30 minutes (steps 713).System down time refers to from system quilt
The final time of closing (disabling) plays the period between the current time opened and (enabled) to system.If system is closed
Between more than 30 minutes, then continue step 715, this method is arranged to the confidence level by setting hard ware measure percentage HWP
For highest level, the initial quantity of electricity percentage using hard ware measure percentage HWP as battery.And this method can be set
Percent difference (percentage gap) is subtracted to display for a user previous electricity percentage RTCP.On the contrary, if system is closed
Time is less than 30 minutes, performs step 720, and this method is arranged to the confidence level by setting previous electricity percentage RTCP
For highest level, the initial quantity of electricity percentage of battery is used as using previous electricity percentage RTCP.Meanwhile method be arranged to for
User shows previous electricity percentage RTCP.
In the second scene, as shown in figure 8, this method determines/detects that no charger is connected to battery and is being
Under the different temperature conditionss of temperature conditionss when uniting disabled, system is activated or activates.In this scene, this method is set
It is set to whether detection battery has been removed or has replaced.If detecting that battery is not removed (step 805), this method is set
The temperature between current battery temperature when the battery temperature for being inspection/detecting system last time when disabled and system are enabled again
Whether poor (the step 810) of degree, be higher than temperature threshold (step 815) with temperature difference.If temperature difference is no more than temperature threshold,
Step 820 is then performed, and this method is arranged to the system down time that time check/detection is used for battery.This method quilt
It is arranged to determine whether system down time exceedes special time period, such as 30 minutes (steps 825), if system down time
More than special time period, such as 30 minutes, then continue step 830, this method is arranged to by setting hard ware measure percentage
The confidence level of HWP is highest level, the initial quantity of electricity percentage using hard ware measure percentage HWP as battery.And should
Method, which can be configured to display for a user previous electricity percentage RTCP, subtracts percent difference (percentage gap).Phase
Instead, if system down time is less than 30 minutes, step 835 is performed, this method is arranged to by setting previous electricity percentage
Confidence level than RTCP is highest level, and the initial quantity of electricity percentage of battery is used as using previous electricity percentage RTCP.Together
When, method is arranged to display for a user previous electricity percentage RTCP.But in the second scene, if temperature difference is higher than
Temperature threshold, then perform step 840, and this method is arranged to based on previous electricity percentage RTCP, hard ware measure percentage
Than the confidence level of HWP and software measurement percentage SWP from previous electricity percentage RTCP, hard ware measure percentage HWP and soft
The initial quantity of electricity percentage as battery is selected in part measurement percentage SWP.
In the 3rd scene, as shown in figure 9, this method determines/detects that no charger is connected to battery and battery
It is removed.In this scene, method is arranged to detect whether battery has been removed or has replaced.If detect battery
It is removed, this method is arranged to the customizing messages of detection/inspection battery, the chemical composition or electricity of such as battery identification, battery
The feature in pond, to select corresponding battery parameter (step 905).After battery parameter is determined, this method is arranged to detection electricity
Whether pond has been removed or has replaced.In this scene, this method can detect that battery has been removed.Then, this method quilt
It is arranged to detect or checks battary removal time (step 910).Detect the battary removal time after, this method be arranged to compare and
Determine whether the battary removal time exceedes special time period, such as 30 minutes (steps 915).If the battary removal time is less than 30
Minute, then continue step 920, this method be arranged to detection/inspection system last time it is disabled when battery temperature and system quilt
Whether the temperature difference between current battery temperature when enabling again, be higher than temperature threshold Temp (steps with temperature difference
925).If temperature difference is no more than temperature threshold Temp, step 930 is performed, this method is arranged to be based on previous electricity hundred
Confidence level point than RTCP, hard ware measure percentage HWP and software measurement percentage SWP from previous electricity percentage RTCP,
The initial quantity of electricity percentage as battery is selected in hard ware measure percentage HWP and software measurement percentage SWP.It is if warm
Degree difference is higher than temperature threshold Temp, performs step 935, and this method is arranged to by setting putting for hard ware measure percentage HWP
Letter level is highest level, the initial quantity of electricity percentage using hard ware measure percentage HWP as battery.And this method is set
It is set to and displays for a user hard ware measure percentage HWP.But if the battary removal time is more than 30 minutes, continue step
940, it is highest level that this method, which is arranged to by the confidence level for setting hard ware measure percentage HWP, uses hard ware measure
Initial quantity of electricity percentages of the percentage HWP as battery.And this method is arranged to display for a user hard ware measure percentage
HWP or previous electricity percentages RTCP.
In the 4th scene, this method can determine/detect that close (disabling) from upper subsystem opens (enabling) to system
Current time between have charger insertion/extraction, with determine battery initial quantity of electricity percentage.This method can be configured to
Determine whether inserted with charger circuit.When detecting inserted with charger circuit, this method is arranged to use charger
Circuit performs hard ware measure percentage compared estimate and uses the measurement result of charger circuit as the initial quantity of electricity percentage of battery.
If on the contrary, having been extracted before detecting inserted with charger circuit but now, this method is arranged to by setting hardware
The confidence level for measuring HWP percentages or software measurement percentage SWP is highest level, using hard ware measure HWP percentages or
Software measures percentage SWP as initial quantity of electricity percentage.Meanwhile this method can be configured to display for a user hard ware measure
Percentage HWP or software measurement percentage SWP.
In the 5th scene, this method can determine/detect that close (disabling) from upper subsystem opens (enabling) to system
Current time between have charger insertion, with determine battery initial quantity of electricity percentage.This method can be configured to determine
Whether inserted with charger circuit.When detecting inserted with charger circuit, this method is arranged to use charger circuit
Perform hard ware measure percentage compared estimate and use the measurement result of charger circuit as the initial quantity of electricity percentage of battery.Phase
Instead, if extracted before detecting inserted with charger circuit but now, this method is arranged to by setting hardware to survey
The confidence level for measuring HWP percentages or software measurement percentage SWP is highest level, uses hard ware measure HWP percentages or soft
Part measures percentage SWP as initial quantity of electricity percentage.Meanwhile this method can be configured to display for a user hard ware measure hundred
Divide than HWP or software measurement percentage SWP.
It should be noted that this method can be configured to the electricity that the combine scenes based on above-mentioned different scenes determine battery
Measure percentage.That is, this method can be based on charger insertion/extraction, battery insertion/extraction, temperature difference, system closedown
At least one information in time, battary removal time, more accurately determines the electricity percentage of battery.It is pair that above-mentioned scene, which is not,
The limitation of the present invention.
The method or wherein at least one step of above-mentioned Fig. 3 to Fig. 6 can be performed from all by controller or microcontroller
Performed such as the corresponding program code of the storage device loading of register circuit.For example, the controller 210 of Fig. 2 can be set
For from 205 loading procedure code of storage device and executive program code is to perform at least one step, so that grade/adjust/
Confidence level is set dynamically to select the initial quantity of electricity percentage as battery from three kinds of percentage.Further retouch
State and repeat no more.
In addition, in some cases, SOC (charged state) percentages or DOD (depth of discharge) percentage that battery has
It may be mistaken as higher SOC/DOD percentages or relatively low SOC/DOD percentages.For example, 100% SOC may quilt
Be mistakenly considered 30% SOC, or 40% SOC may be erroneously interpreted as 100% SOC.In these cases, only wait
Longer convergence time could be completed to calibrate, and the electric quantity metering based on voltage can only be used, which to operate, successfully to be calibrated or adjust
The estimated result of whole battery capacity percentage；In fact, this convergence time can be equal to 30 minutes or one hour.For with
For family, it is very inconvenient that accurately battery capacity percentage could be obtained so long by, which only waiting,.
To solve the above-mentioned problems, in an embodiment of the present invention, electric power controller 200 can be configured as based on
The information of two electric quantity metering operational measures carrys out quick or execution rapidly and compensates/calibrate the operation of the first electric quantity metering, second electricity
Metrological operation is measured to operate different from the first electric quantity metering.The operation of first electric quantity metering can be the electric quantity metering behaviour based on voltage
Make, the operation of the second electric quantity metering is the electric quantity metering operation based on Coulomb meter.But above-mentioned not limitation of the present invention, first
Electric quantity metering can also be the electric quantity metering operation based on Coulomb meter, and the operation of the second electric quantity metering can also be the electricity based on voltage
Measure metrological operation.
In an embodiment of the present invention, electric power controller 200 is configured as using and performs the electricity based on Coulomb meter
Metrological operation measures and obtains accurate information, for example, the exact value of electricity/electric energy of 201 charge or discharge of battery and/or
Pass through the accurate cell current value of battery 201.For example, it can periodically measure electricity/electricity of 201 charge or discharge of battery
The numerical value of energy.Battery current by battery 201 can be instantaneous or average measurement battery current.For example, power management fills
200 exact values using electricity/electric energy from 201 charge or discharge of battery are put, are reversely derived by the accurate of battery 201
Cell current value, then using correct/accurate battery cell voltage for calculating battery 201 for the cell current value derived
Value.Electric power controller 200 may finally be according to correct/accurate battery cell voltage value, by referring to definition battery 201
The mapping table (or mapping curve) of relation obtains or obtains battery 201 between battery cell voltage and battery capacity percentage
Accurately/correct battery capacity percentage.Similarly, electric power controller 200 can be used directly by based on Coulomb meter
The accurate cell current value of electric quantity metering operational measure calculates correct/accurate battery cell voltage value of battery 201.This
Outside, after correct/accurate battery cell voltage value is calculated, electric power controller 200 can use this correct/accurate
The battery capacity percentage by the electric quantity metering operational measure based on Coulomb meter is calibrated or adjusted to battery cell voltage value.
Figure 10 is the flow using the first operation example of the controller 210 of the electric quantity metering operation information based on Coulomb meter
Figure, the controller 210 are used to perform the electric quantity metering operation based on voltage to obtain correct battery capacity percentage.As long as energy
Enough realize essentially identical as a result, the sequencing shown in Figure 10 the step of flow chart can be not required in strict accordance with shown order
And need not be continuous, that is to say, that centre there can be other steps.The detailed step of Figure 10 is as follows：
Step 1005：Start；
Step 1010：Controller 210 performs the electric quantity metering operation based on voltage, to generate or estimate that battery 201 charges
Or the first numerical value of electricity/electric energy of electric discharge；
Step 1015：Controller 210 performs the electric quantity metering operation based on Coulomb meter, is filled with generating or measuring battery 201
The second value of electricity or electricity/electric energy of electric discharge；
Step 1020：Controller 210 determines whether to perform quick compensation/calibration to the electric quantity metering operation based on voltage；
If it is, continue step 1025；Otherwise step 1010 is continued；
Step 1025：Second number of electricity/electric energy that controller 210 passes through the electric quantity metering operational measure based on Coulomb meter
Value operates to perform the electric quantity metering based on voltage, to derive and calculate the accurate battery cell voltage value of battery 201；
Step 1030：Controller 210 according to accurate battery cell voltage value, by referring to define battery cell voltage and
The mapping table of relation between battery capacity percentage, obtains the accurate battery capacity percentage of battery 201；
Step 1035：Terminate.
In step 1020, for example, controller 210 is arranged to calculate the difference of the first numerical value and second value, and
Determine that whether difference than is higher than specific threshold, quickly compensated to decide whether to operate the electric quantity metering based on voltage execution/
Calibration.But above-mentioned not limitation of the present invention.Controller 210 can also be arranged to perform to trigger based on other algorithms
Quick compensation/calibration.For example, specific threshold is 1% or 0.5%.If difference ratio is higher than 1% or 0.5%, continue step
1025；Otherwise, step 1010, and 210 repeat step 1010 of controller and step 1015 are continued.
In step 1025, controller 210 is using electricity/electric energy by the fuel metering operational measure based on Coulomb meter
Second value derive and calculate the accurate battery cell voltage value of battery 201.For example, controller 210 is based on such as the following
Formula calculates battery cell voltage value：
Wherein Δ CAR represent during time interval Δ T by the electricity of the electric quantity metering operational measure based on Coulomb meter/
The value of electric energy, I1 represent the battery current by battery 201, no matter battery 201 represents external cell in charge or discharge, Vbat
Voltage, can be operated to measure Vbat, R represents to use the electric quantity metering based on voltage by using the electric quantity metering based on voltage
The resistance for the sensing resistance that operation obtains, Vzcv represent the battery cell voltage value for the battery 201 that calculate/derive.As showing
Example, sensing resistance are included in battery 201；That is, the resistance of sensing resistance is the equivalent resistance of battery 201.Due to base
In voltage electric quantity metering operation can be configured to calculate electricity/electric energy the first numerical value, the present invention be equivalently used electricity/
The second value of electric energy replaces the first numerical value of electricity/electric energy.
After the accurate battery cell voltage value Vzcv of battery 201 is obtained, in step 1030, controller 210 can
With according to accurate battery cell voltage value, by referring to the mapping for defining relation between battery cell voltage and electricity percentage
Table directly obtains or obtains the accurate battery capacity percentage of battery 201.Define battery cell voltage and battery capacity percentage
Between relation mapping table be based on voltage electric quantity metering operation establish.
In another embodiment, controller 210 can in response to temperature change, the cell degradation factor change and/or
The change of original state performs quick compensation/calibration to determine to operate the electric quantity metering based on voltage.For example, when system is weighed
When being newly connected to battery and/or initially use battery, controller 210 can perform this electric quantity metering operation based on voltage
When quick compensation/calibration is performed to the electric quantity metering operation based on voltage.
Figure 11 is the flow chart of the second operation example of the controller for using the electric quantity metering operation information based on Coulomb meter,
The controller is used to perform the electric quantity metering operation based on voltage to obtain correct battery capacity percentage.As long as it can realize
It is essentially identical as a result, the sequencing shown in Figure 11 the step of flow chart can be not required in strict accordance with shown order and be not required to
It is if continuous, that is to say, that centre can have other steps.The detailed step of Figure 11 is as follows：
Step 1105：Start；
Step 1110：Controller 210 performs the electric quantity metering operation based on voltage, to generate or estimate that battery 201 charges
Or the first numerical value of electricity/electric energy of electric discharge；
Step 1115：Controller 210 is according to the original state of temperature change, the change of the cell degradation factor and/or battery
Change determine whether to perform quick compensation/calibration to the electric quantity metering operation based on voltage.If it is, continue step
1120, otherwise continue step 1110；
Step 1120：Controller 210 performs the electric quantity metering based on Coulomb meter and operates to generate or estimate that battery 201 charges
Or the second value of electricity/electric energy of electric discharge；
Step 1125：Second number of electricity/electric energy that controller 210 passes through the electric quantity metering operational measure based on Coulomb meter
Value derives and calculates the accurate battery cell voltage value of battery 201；
Step 1130：Controller 210 according to accurate battery cell voltage value, by referring to define battery cell voltage and
The mapping table of relation between battery capacity percentage, obtains the accurate battery capacity percentage of battery 201；
Step 1135：Terminate.
In addition, in step 1115, controller 210 may be also configured to periodically to the electric quantity metering based on voltage
Operation performs quick compensation/calibration.
In addition, in other embodiments, controller 210 can be configured to performing this electric quantity metering based on voltage
During operation, with reference to the battery current by the electric quantity metering operational measure based on Coulomb meter, the electric quantity metering based on voltage is grasped
Make to perform quick compensation/quick compensation/calibration of calibration execution.
Figure 12 is the flow chart of the 3rd operation example of the controller for using the electric quantity metering operation information based on Coulomb meter,
The controller is used to perform the electric quantity metering operation based on voltage to obtain correct battery capacity percentage.As long as it can realize
It is essentially identical as a result, the sequencing shown in Figure 12 the step of flow chart can be not required in strict accordance with shown order and be not required to
It is if continuous, that is to say, that centre can have other steps.The detailed step of Figure 12 is as follows：
Step 1205：Start；
Step 1210：Controller 210 performs the electric quantity metering operation based on voltage, to generate or estimate that battery 201 charges
Or the first numerical value of electricity/electric energy of electric discharge；
Step 1215：Controller 210 performs the electric quantity metering operation based on Coulomb meter, is filled with generating or measuring battery 201
The second value of electricity or electricity/electric energy of electric discharge；
Step 1220：Controller 210 determines whether to perform quick compensation/calibration to the electric quantity metering operation based on voltage；
If it is, continuing step 1225, otherwise continue step 1210；
Step 1225：Second number of electricity/electric energy that controller 210 passes through the electric quantity metering operational measure based on Coulomb meter
Value operates to perform the electric quantity metering based on voltage, to derive and calculate the accurate battery cell voltage value of battery 201；
Step 1230：Controller 210 according to accurate battery cell voltage value, by referring to define battery cell voltage and
The mapping table of relation between battery capacity percentage, obtains the accurate battery capacity percentage of battery 201；
Step 1235：Terminate.
In step 1225, controller 210 by the battery current I1 of the electric quantity metering operational measure based on Coulomb meter come
Derive and calculate the accurate battery cell voltage value of battery 201.For example, controller 210, which is based on the following formula, calculates battery list
First magnitude of voltage：
In order to summarize the embodiment of Fig. 1 and Fig. 2.As shown in figs. 10-12, when the first electric quantity metering of execution is operated to estimate electricity
During the electricity percentage of pond, controller 210 can be configured to operate (such as the electricity based on Coulomb meter by the second electric quantity metering
Metrological operation) measurement information (such as battery current and/or electricity/electric energy) come to the first electric quantity metering operation (such as based on
The electric quantity metering operation of voltage) quick/hastily compensation/calibration is performed, to calculate directly and rapidly the accurate of battery 201
Battery cell voltage value, quickly to obtain/generate correctly using accurate battery cell voltage value and based on above-mentioned mapping table
Battery capacity percentage.Electric power controller 200 can be by performing quick compensation/calibration and with reference to mapping table come fast
Speed obtains correct battery capacity percentage.Therefore, electrical management device 200 only needs to wait the less time to obtain just
True battery capacity percentage.
Those skilled in the art will easily observe, keep present invention teach that while, can make it is many should
The modifications and changes of apparatus and method.Therefore, above disclosure should be interpreted only by the appended claims boundary and
Scope is limited.
Claims (10)
- A kind of 1. method for obtaining battery capacity percentage, it is characterised in that including：The first electric quantity metering for being used to measure battery capacity percentage is performed to the battery to operate；The information obtained by reference to the second electric quantity metering operation performed to the battery, is grasped using first electric quantity metering Make to obtain battery capacity percentage；Wherein, the second electric quantity metering operation is different from first electric quantity metering operation.
- 2. the method according to claim 1 for obtaining battery capacity percentage, it is characterised in that first electricity Metrological operation is the electric quantity metering operation based on voltage, and the second electric quantity metering operation is the electric quantity metering behaviour based on Coulomb meter Make.
- 3. the method according to claim 1 for obtaining battery capacity percentage, it is characterised in that it is described by reference to The information that the second electric quantity metering operation performed to the battery obtains, is operated using first electric quantity metering and obtains battery electricity The step of measuring percentage specifically includes：The electricity or electric energy of the battery charge or discharge during prefixed time interval are obtained using the operation of the second electric quantity metering；The battery cell voltage of the battery is calculated by reference to the electricity or electric energy；AndAccording to the battery cell voltage of the battery for calculating and obtaining, reflected with reference to what first electric quantity metering operation obtained Firing table obtains battery capacity percentage, wherein the mapping table defines the battery cell voltage of the battery for calculating and obtaining With the relation between battery capacity percentage.
- 4. the method according to claim 3 for obtaining battery capacity percentage, it is characterised in that it is described by reference to The step of battery cell voltage of electricity or the electric energy calculating battery, specifically includes：Battery current is obtained according to the electricity or electric energy and prefixed time interval；AndDescribed in being calculated according to the battery current, cell resistance and by the external battery voltage that the operation of the first electric quantity metering obtains The battery cell voltage of battery.
- 5. the method according to claim 1 for obtaining battery capacity percentage, it is characterised in that it is described by reference to The information that the second electric quantity metering operation performed to the battery obtains, is operated using first electric quantity metering and obtains battery electricity The step of measuring percentage specifically includes：Operated using the second electric quantity metering and obtain battery current；The battery cell voltage of the battery is calculated by reference to the battery current；AndAccording to the battery cell voltage of the battery for calculating and obtaining, reflected with reference to what first electric quantity metering operation obtained Firing table, obtains battery capacity percentage, wherein the mapping table defines the battery unit electricity of the battery for calculating and obtaining Relation between pressure and battery capacity percentage.
- 6. the method according to claim 5 for obtaining battery capacity percentage, it is characterised in that it is described by reference to The step of battery cell voltage of the battery current calculating battery, specifically includes：Described in being calculated according to the battery current, cell resistance and by the external battery voltage that the operation of the first electric quantity metering obtains The battery cell voltage of battery.
- 7. the method according to claim 1 for obtaining battery capacity percentage, it is characterised in that the method is into one Step includes：Perform the operation of the first electric quantity metering and obtain the electricity of battery charge or discharge or the first numerical value of electric energy；Perform the two the first electric quantity metering operations and obtain the electricity of battery charge or discharge or the second value of electric energy；AndFirst numerical value is determined whether that triggering enters the acquisition battery capacity percentage compared with the second value Compare the step of.
- 8. the method according to claim 7 for obtaining battery capacity percentage, it is characterised in that described by described One numerical value determines whether that the step of triggering enters the acquisition battery capacity percentage is specific compared with the second value Including：Calculate the difference ratio between first numerical value and the second value；AndWhen the difference ratio is more than predetermined threshold value, the step of determining to enter the acquisition battery capacity percentage.
- 9. the method according to claim 1 for obtaining battery capacity percentage, it is characterised in that the method is into one Step includes：Calibrate or adjust according to the described second electricity using the battery capacity percentage obtained according to first electric quantity metering operation Measure another battery capacity percentage that metrological operation obtains.
- A kind of 10. electric power controller for being used to obtain battery capacity percentage, it is characterised in that including：Storage device；Controller, the controller are coupled to the storage device, and are configured to from the storage device loading procedure code, with The step of performing the method as any such as claim 1-9.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15/287,720 US20170227609A1 (en) | 2016-02-04 | 2016-10-06 | Method and apparatus capable of accurately estimating/determining power percentage of battery based on confidence levels determined from resultant information of multiple different fuel gauge operations and/or information of battery history, aging factor, sleep time, or battery temperature |
| US15/287,720 | 2016-10-06 | ||
| US15/713,696 US10942221B2 (en) | 2016-02-04 | 2017-09-24 | Method and apparatus capable of accurately estimating/determining power percentage of battery based on confidence levels determined from resultant information of multiple different fuel gauge operations and/or information of battery history, aging factor, sleep time, or battery temperature |
| US15/713,696 | 2017-09-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107918102A true CN107918102A (en) | 2018-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710924460.7A Withdrawn CN107918102A (en) | 2016-10-06 | 2017-09-30 | For obtaining the method and electric power controller of battery capacity percentage |
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| Country | Link |
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| CN (1) | CN107918102A (en) |
| TW (1) | TW201814318A (en) |
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| TWI710888B (en) * | 2019-04-10 | 2020-11-21 | 宏碁股份有限公司 | Electronic device and control method thereof |
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| CN105372602A (en) * | 2015-12-10 | 2016-03-02 | 惠州Tcl移动通信有限公司 | Battery remaining capacity detecting method of mobile terminal and device thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112793461A (en) * | 2019-11-13 | 2021-05-14 | 上海度普新能源科技有限公司 | Battery management system, electric vehicle and initial state determination method of lithium battery |
| CN112793461B (en) * | 2019-11-13 | 2022-04-29 | 上海度普新能源科技有限公司 | Battery management system, electric vehicle and initial state determination method of lithium battery |
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