CN105259415B - Internal resistance of cell computational methods - Google Patents

Internal resistance of cell computational methods Download PDF

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CN105259415B
CN105259415B CN201510717136.9A CN201510717136A CN105259415B CN 105259415 B CN105259415 B CN 105259415B CN 201510717136 A CN201510717136 A CN 201510717136A CN 105259415 B CN105259415 B CN 105259415B
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current
discharge
battery
voltage
cell
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CN105259415A (en
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陈煜儒
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AU Optronics Corp
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AU Optronics Corp
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Abstract

A kind of internal resistance of cell computational methods, it is comprised the steps of:In the first stage, judge whether the electric discharge of battery reaches a constant-current discharge state, to obtain the electric current of constant-current discharge;If it is determined that the electric discharge of battery reaches constant-current discharge state, then into second stage;In second stage, constant-current discharge state continued to default discharge time, judged whether the electric discharge of battery ends, to obtain blanking voltage;If it is determined that battery reaches cut-off discharge condition, then into the phase III;In the phase III, judge whether the cut-off discharge condition of battery persistently presets time of repose, to obtain steady state voltage;And according to steady state voltage, blanking voltage and the electric current of constant-current discharge to calculate the internal resistance of cell of battery.

Description

Internal resistance of cell computational methods
Technical field
The present invention relates to a kind of battery technology, particularly a kind of internal resistance of cell computational methods.
Background technology
For that accurately can be controlled to battery, it is necessary to reasonably estimate the electricity of battery, and estimate the master of battery electric quantity One of factor is wanted, is the internal resistance of battery.The above-mentioned internal resistance of cell can turn into one of principal element of estimation battery electric quantity, be due to The internal resistance of cell can improve with cell degradation, therefore, it is impossible to it is simple with internal resistance of cell during battery production, to estimate battery Electricity, to avoid the error that electricity is estimated.
As can be seen here, existing mode obviously still suffers from inconvenience and defect, and has much room for improvement.In order to solve the above problems, Association area there's no one who doesn't or isn't painstakingly seeks solution, but does not develop appropriate solution yet for a long time.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of internal resistance of cell computational methods, to improve the upper of prior art State problem.
To achieve these goals, the invention provides a kind of internal resistance of cell computational methods, the method to comprise the steps of: Judge whether the electric discharge of battery reaches constant-current discharge state in the first stage, to obtain the electric current of constant-current discharge;If battery Electric discharge reach constant-current discharge state, then in second stage continue constant-current discharge to default discharge time after, judge electricity Whether the electric discharge in pond ends, to obtain the blanking voltage of battery;If the electric discharge of battery has ended, into the phase III, pass through After default time of repose, judge whether the voltage of battery recovers to steady state voltage;And according to steady state voltage, blanking voltage and determine The electric current of current discharge is to calculate the internal resistance of cell of battery.
The technical effects of the invention are that:
The present invention goes out the internal resistance of cell to estimate battery electricity by providing a kind of internal resistance of cell computational methods with instant computing Amount, to avoid the error that electricity is estimated.
Below in conjunction with the drawings and specific embodiments, the present invention will be described in detail, but not as a limitation of the invention.
Brief description of the drawings
Fig. 1 is a kind of flow chart of internal resistance of cell computational methods according to an embodiment of the present invention;
Fig. 2 is a kind of detailed step of internal resistance of cell computational methods as shown in Figure 1 according to another embodiment of the present invention Schematic diagram;
Fig. 3 is a kind of detailed step of internal resistance of cell computational methods as shown in Figure 1 according to yet another embodiment of the invention Schematic diagram;
Fig. 4 is a kind of detailed step of internal resistance of cell computational methods as shown in Figure 1 according to further embodiment of this invention Schematic diagram.
Wherein, reference
1000:Method
1100、1200、1300、1400:Step
1110~1160:Step
1210~1260:Step
1310~1350:Step
Embodiment
The structural principle and operation principle of the present invention are described in detail below in conjunction with the accompanying drawings:
In order that the narration of the content of the invention is more detailed with complete, below for form of implementation and the specific reality of the present invention Apply example and propose illustrative description;But this not implements or the unique forms with the specific embodiment of the invention.Embodiment In cover multiple specific embodiments feature and to construction with operate these specific embodiments method and step it is suitable with it Sequence.However, it can also reach identical or impartial function and sequence of steps using other specific embodiments.
Unless this specification is defined otherwise, the implication of science and technology vocabulary used herein is led with technology belonging to the present invention Field technique personnel understand identical with usual meaning.According to usual operating type, in accompanying drawing various features with element not Scale, its drafting mode are in order to which specific features and element related to the present invention are presented in optimal manner.In addition, Between different figures, similar elements/components are censured with same or analogous component symbol.
To understand the technical characteristic of the present invention, the situation for the battery that the present invention is detected is introduced in advance.This battery is discharging Under the different situation of electric current, although discharge cut-off voltage is identical, however, the actual depth of discharge to battery is different.Above-mentioned condition The origin cause of formation, be due to that the internal resistance of cell causes battery pressure drop, this battery pressure drop can become big with discharge current and increase.Work as battery After electric discharge ends and stands a period of time, battery can slowly return to open-circuit voltage, and the open-circuit voltage that battery is replied can be with electric discharge electricity The difference of stream and it is different, for example, if discharge current is bigger, then battery reply open-circuit voltage can be higher.
In order to avoid different load currents, the discharge capacity of every primary cell is influenceed, and then influences the essence of battery electric quantity estimation Accuracy.In battery discharge, internal resistance compensation function can be added, allows battery to maintain fixed depth of discharge.Above-mentioned internal resistance compensates work( It can be when cell voltage reaches discharge cut-off voltage, current battery voltage is added into pressure drop caused by internal resistance, to estimate at present The rational open-circuit voltage values of battery.Once the open-circuit voltage values estimated reach discharge cut-off voltage, just stop to battery discharge.
If battery management system is intended to realize above-mentioned internal resistance compensation function, battery management system must have a set of mechanism, in electricity Under situation in the use of pond, immediately calculate and renewal internal resistance of cell value.In summary, the internal resistance of cell is gone out for instant computing to estimate Battery electric quantity is calculated, to avoid the error that electricity is estimated, the present invention proposes a kind of internal resistance of cell computational methods, illustrates as after.
Fig. 1 is a kind of flow chart of internal resistance of cell computational methods according to an embodiment of the present invention.As illustrated, battery Internal resistance computational methods 1000 comprise the steps of:
Step 1100:Judge whether the electric discharge of battery reaches constant-current discharge state in the first stage;Step 1200:It is if electric The electric discharge in pond reaches constant-current discharge state, then after second stage continues constant-current discharge to default discharge time, judges Whether the electric discharge of battery ends, to obtain the blanking voltage of battery;Step 1300:If the electric discharge of battery has ended, into In three stages, after default time of repose, judge whether the voltage of battery recovers to steady state voltage;And step 1400:It is if electric The voltage in pond has recovered to steady state voltage, then in fourth stage according to steady state voltage, blanking voltage and the electric current of constant-current discharge To calculate the internal resistance of cell of battery.
Step 1100 is referred to, this step is intended to judge whether battery is in constant-current discharge state, if battery Discharge current it is too small, internal resistance of cell computational methods 1000 will be caused not calculated effectively, and cause calculation error.Cause This, during the first stage, detects the discharge current and cell voltage of battery, and judge whether the current discharge current (Cp) of battery is big In predetermined current (Cm).In one embodiment, the current value of this predetermined current (Cm) can be but be not limited to 20A (ampere).Work as mesh Preceding discharge current (Cp), which is more than predetermined current (Cm), can determine whether battery is (detailed later in constant-current discharge state State), if then continuing subsequent step, with into follow-up phase;If current discharge current (Cp) is less than predetermined current (Cm), represent Battery is non-to be in constant-current discharge state, will not enter follow-up phase.
Step 1200 is referred to, once judge that the electric discharge of battery is in constant-current discharge state, then into second stage, with Judge whether the electric discharge of battery ends, enter phase III (step 1300) if battery discharge ends, if battery discharge is not yet Cut-off then returns to first stage (step 1100).The blanking voltage for being intended to find out battery of this step, with sharp further battery The calculation procedure of internal resistance.In one embodiment, specifically, if the current discharge current (Cp) of above-mentioned battery and the residual electricity of battery Amount is all zero, then it represents that battery has discharged cut-off, and voltage now is referred to as the blanking voltage of battery.So-called residual electricity means battery Remaining electricity, it can represent current remaining electricity in a manner of 0~100%.Once the residual electricity of battery is zero, then generation Table battery has exhausted the electric energy of its storage, and in other words, battery has discharged cut-off.
In another embodiment, please continue to refer to step 1200.During second stage continues constant-current discharge, if If the curent change of constant-current discharge is more than preset difference value, in other words, if the situation of battery discharge has not met and has determined electric current and put The condition of electricity, and now battery discharge current is non-zero, then returns to the first stage to rejudge whether the electric discharge of battery reaches Constant-current discharge state.
Step 1300 is referred to, once judging battery discharge cut-off, then in the phase III, battery is in standing preset time Afterwards, judge whether the voltage of battery recovers to steady state voltage.The steady state voltage for being intended to find out battery of this step, after profit The calculation procedure of the continuous internal resistance of cell.In one embodiment, above-mentioned standing preset time can be but be not limited to 30 minutes, when battery is quiet After putting 30 minutes, the voltage returns of battery are referred to as steady state voltage to steady-state conditions, voltage now.If in standing preset time Afterwards, the voltage of battery recovers then to enter fourth stage (step 1400) to steady state voltage, if the voltage of battery does not recover to stable state Voltage then returns to first stage (step 1100), and whether the electric discharge for rejudging battery is constant-current discharge.
Step 1400 is referred to, once judge that the voltage of battery recovers to steady state voltage, then in fourth stage, according to steady State voltage, blanking voltage and the electric current of constant-current discharge are to calculate the internal resistance of cell of battery.
Consequently, it is possible to by each step of above-mentioned internal resistance of cell computational methods 1000, constant-current discharge can be respectively obtained Electric current, blanking voltage and steady state voltage, therefore, internal resistance of cell computational methods 1000 are able to immediately according to above-mentioned parameter in terms of really Calculate the internal resistance of cell of battery, and reasonable estimation battery electric quantity, to avoid the error that electricity is estimated.
Fig. 1 step 1400 is referred to, in this embodiment, step 1400 also comprises the steps of:Steady state voltage is subtracted Blanking voltage is removed to obtain voltage difference;And by voltage difference divided by the electric current of constant-current discharge to obtain the internal resistance of cell.According to The internal resistance of cell then can be accurately calculated according to above-mentioned steps.To make above-mentioned steps it can be readily appreciated that being arranged such as following formula, so originally Invention is not limited thereto:
It should be noted that each step 1100~1400 of internal resistance of cell computational methods 1000 can be subject to by hardware or software Perform.For example, the mechanism of the judgement of step 1100~1300 can by central processing unit, appropriate electronic component or software Lai Perform, and the step of calculating internal resistance of cell of step 1400 can also be added by central processing unit, appropriate electronic component or software To perform.In addition, first stage~fourth stage described in step 1100~1400, only with order to explaining internal resistance of cell meter Each practice condition of calculation method 1000, and beneficial to understanding, it is not intended to limiting the invention.The first rank will be described in detail respectively hereinafter Each practice condition of section~fourth stage.
Fig. 2 is the detailed step of the first stage of the internal resistance of cell computational methods as shown in Figure 1 according to the embodiment of the present invention Schematic diagram.First, in step 1110, the discharge current and cell voltage of battery are detected, to obtain current discharge current (Cp) With newest cell voltage.Then, in step 1120, judge whether the current discharge current (Cp) of battery is more than predetermined current (Cm).Then, if it is determined that the current discharge current (Cp) of battery is more than predetermined current, step 1130 is further performed, to judge Whether the curent change of discharge current (Cp) is more than preset difference value at present.If it is determined that the curent change of current discharge current (Cp) is not More than preset difference value, then subsequent steps 1140.In one embodiment, above-mentioned curent change for calculate current discharge current (Cp) with Difference (Cp-Cd) between original discharge current (Cd), above-mentioned preset difference value can be but be not limited to 2A (ampere).
In one embodiment, when above-mentioned steps 1140 are performed, except the current discharge current (Cp) of renewal battery is original Outside, the discharge current that can also calculate battery simultaneously is more than the continuous discharging time of predetermined current to discharge current (Cd).Then, Yu Bu In rapid 1150, judge whether continuous discharging time is more than default discharge time.Then, if it is determined that continuous discharging time is more than default Discharge time, then into the second stage shown in step 1200, to judge whether the battery of continuous discharge ends electric discharge.Need to illustrate , above-mentioned steps are intended, it is ensured that battery is in constant-current discharge state, and this state continues for some time, to enter One step avoids the generation of calculation error.In one embodiment, above-mentioned default discharge time can be but be not limited to 150 seconds.
If the current discharge current (Cp) that step 1120 determines battery determines no more than predetermined current, step 1130 The curent change of discharge current (Cp) is more than preset difference value at present or step 1150 determines continuous discharging time no more than default Discharge time, then step 1160 is performed, current discharge current (Cp) is set as original discharge current (Cd), and by continuous discharge Time is set as zero, in other words, by parameter reset, is then return to step 1110, re-executes the detection of the discharge current of battery Step.
Fig. 3 is the detailed step of the second stage of the internal resistance of cell computational methods as shown in Figure 1 according to the embodiment of the present invention Schematic diagram.First, in step 1210, the discharge current and cell voltage of battery are persistently detected, to obtain current discharge current (Cp) with newest cell voltage.Then, in step 1220, judge whether the curent change of current discharge current (Cp) is more than in advance If difference.Difference (Cp-Cd) of the above-mentioned curent change between the current discharge current (Cp) of calculating and original discharge current (Cd). In one embodiment, above-mentioned preset difference value can be but be not limited to 2A (ampere).Then, if it is determined that the electricity of current discharge current (Cp) Rheologyization is more than preset difference value, then step 1250 is performed, to judge the blanking voltage of current discharge current (Cp) and cell voltage Whether it is zero, if it is determined that when the blanking voltage of discharge current (Cp) and cell voltage is zero at present, then into the phase III 1300, To judge whether the voltage of battery recovers to steady state voltage.
In another embodiment, step 1220 is referred to, if it is determined that the curent change of discharge current (Cp) is not more than at present Preset difference value, then as shown in step 1230, it is original discharge current (Cd) to update current discharge current (Cp).In execution step After 1230 to update original discharge current (Cd), then step 1240 is performed, to judge it is pre- whether original discharge current (Cd) is more than If electric current.If it is determined that original discharge current is more than predetermined current, then step 1210 is later performed, with the electric discharge of lasting detection battery Electric current, represent that battery discharge not yet ends, and still in lasting constant-current discharge.In one embodiment, above-mentioned predetermined current can be But it is not limited to 20A (ampere).
In another embodiment, if step 1240 determines original discharge current (Cd) and is not more than predetermined current or step When 1250 blanking voltages for determining current discharge current (Cp) and cell voltage are not zero, then step 1260 is performed, will be current Discharge current (Cp) is set as original discharge current (Cd), and continuous discharging time is set as into zero, in other words, by parameter weight If being then return to the first stage of step 1100, judge whether the discharge current of battery is more than predetermined current etc. to re-execute Step.
Fig. 4 is the detailed step of the phase III of the internal resistance of cell computational methods as shown in Figure 1 according to the embodiment of the present invention Schematic diagram.First, in step 1310, the discharge current and cell voltage of battery are persistently detected, to obtain current discharge current (Cp) with newest cell voltage.Then, in step 1320, judge whether current discharge current (Cp) is zero.Then, if it is determined that Discharge current (Cp) is zero at present, then as shown in step 1330, updates the duration that discharge current is zero.Then, in step In 1340, judge whether the duration that discharge current is zero is more than default time of repose.If it is determined that discharge current is zero to hold The continuous time is more than default time of repose, represents that battery is completed to stand, and measured cell voltage is steady state voltage when completing to stand, The fourth stage shown in step 1400 is subsequently entered, to calculate the internal resistance of cell of battery.In one embodiment, above-mentioned preset time It can be but be not limited to 30 minutes.
In another embodiment, step 1340 is referred to, if it is determined that the duration that discharge current is zero is no more than default Time of repose, then step 1310 is returned to, detect the discharge current and cell voltage of battery again.
In another embodiment, if step 1320 determines current discharge current, (Cp) is not zero, then performs step 1350, current discharge current (Cp) is set as original discharge current (Cd), continuous discharging time is set as to zero, and will be default Time of repose is set as zero, in other words, by parameter reset, the first stage of step 1100 is then return to, to re-execute battery Discharge current detecting step.
Those skilled in the art are when it can be appreciated that each step in internal resistance of cell computational methods 1000 is given according to its function of performing With name, only for making the technology of the present invention more obvious understandable, such step is not limited to.Each step is integrated Into same step or multiple steps are split into, or either step is changed into another step and performed, all still fall within the present invention The embodiment of content.
From the invention described above embodiment, there are following advantages using the present invention.The embodiment of the present invention passes through offer A kind of internal resistance of cell computational methods, the internal resistance of cell is gone out with instant computing to estimate battery electric quantity, to avoid the error that electricity is estimated The problem of.
Certainly, the present invention can also have other various embodiments, ripe in the case of without departing substantially from spirit of the invention and its essence Know those skilled in the art when can be made according to the present invention it is various it is corresponding change and deformation, but these corresponding change and become Shape should all belong to the protection domain of appended claims of the invention.

Claims (10)

1. a kind of internal resistance of cell computational methods, it is characterised in that include:
In a first stage, judge whether the electric discharge of a battery reaches a constant-current discharge state, to obtain a constant-current discharge Electric current;
If it is determined that the electric discharge of the battery reaches the constant-current discharge state, then into a second stage;
In the second stage, the constant-current discharge state continued to a default discharge time, and judging the electric discharge of the battery is No cut-off, to obtain a blanking voltage;
If it is determined that the battery reaches cut-off discharge condition, then into a phase III;
In the phase III, judge whether the cut-off discharge condition of the battery continues a default time of repose, it is steady to obtain one State voltage;
According to the electric current of the steady state voltage, the blanking voltage and the constant-current discharge to calculate an internal resistance of cell of the battery;
Wherein, judge that the step of whether electric discharge of battery reaches constant-current discharge state includes in the first stage:
The discharge current of the battery is detected, to obtain a current discharge current;
Judge whether the current discharge current is more than a predetermined current;
If it is determined that the current discharge current is more than the predetermined current, then judge whether the curent change of the current discharge current is more than One preset difference value;
If it is determined that the curent change of the current discharge current is not more than the preset difference value, then it is former for one to update the current discharge current Beginning discharge current;
The discharge current for calculating the battery is more than a continuous discharging time of the predetermined current;
Judge whether the continuous discharging time is more than a default discharge time;
If it is determined that the continuous discharging time is more than the default discharge time, then into the second stage to judge the electric discharge of the battery Whether end, to obtain the blanking voltage;And
In the second stage, if the curent change of the constant-current discharge is more than a preset difference value and the electric discharge electricity of the constant-current discharge Flow non-zero, then return to the first stage to rejudge whether the electric discharge of the battery reaches the constant-current discharge state.
2. internal resistance of cell computational methods as claimed in claim 1, it is characterised in that also include:
In the second stage, if the curent change of the constant-current discharge is more than a preset difference value and the electric discharge electricity of the constant-current discharge Flow non-zero, then return to the first stage to rejudge whether the electric discharge of the battery reaches the constant-current discharge state.
3. internal resistance of cell computational methods as claimed in claim 1, it is characterised in that according to the steady state voltage, the blanking voltage And the discharge current is included with calculating the step of the internal resistance of cell of the battery:
The steady state voltage is subtracted into the blanking voltage to obtain a voltage difference;And
By the voltage difference divided by the discharge current to obtain the internal resistance of cell.
4. internal resistance of cell computational methods as claimed in claim 1, it is characterised in that the curent change of the current discharge current is Calculate the difference between an original discharge current of the current discharge current and previous time point.
5. internal resistance of cell computational methods as claimed in claim 1, it is characterised in that in the second stage constant-current discharge shape State continues after presetting discharge time to this, judges whether the electric discharge of the battery ends, and is wrapped with obtaining the step of the blanking voltage Contain:
Discharge current and a cell voltage of the battery are detected, to obtain a current discharge current and a cell voltage;
Judge whether the curent change of the current discharge current is more than a preset difference value;
If it is determined that the curent change of the current discharge current is more than the preset difference value, then the current discharge current and the battery are judged Whether the blanking voltage of voltage is zero;And
If it is determined that the blanking voltage of the current discharge current and the cell voltage is zero, then into the phase III to judge battery Voltage whether recover to the steady state voltage.
6. internal resistance of cell computational methods as claimed in claim 5, it is characterised in that in the second stage constant-current discharge shape State continues after presetting discharge time to this, judges whether the electric discharge of the battery ends, the step of to obtain the blanking voltage also Comprising:
If it is determined that the curent change of the current discharge current is not more than the preset difference value, then it is the original to update the current discharge current Beginning discharge current;
Judge whether the original discharge current is more than a predetermined current;And
If it is determined that the original discharge current is more than the predetermined current, then the discharge current and the electricity for detecting the battery are re-executed The step of cell voltage.
7. internal resistance of cell computational methods as claimed in claim 6, it is characterised in that in the second stage constant-current discharge shape State continues after presetting discharge time to this, judges whether the electric discharge of the battery ends, the step of to obtain the blanking voltage also Comprising:
If it is determined that the blanking voltage of the current discharge current and the cell voltage is not zero or the original discharge current is no more than this Predetermined current, then the current discharge current is set as the original discharge current and a continuous discharging time is set as zero, and The first stage is returned to rejudge whether the electric discharge of the battery reaches the constant-current discharge state.
8. internal resistance of cell computational methods as claimed in claim 1, it is characterised in that being somebody's turn to do for the battery is judged in the phase III Persistently whether the default time of repose is included cut-off discharge condition with obtaining the step of the steady state voltage:
The discharge current of the battery is detected, to obtain a current discharge current;
Judge whether the current discharge current is zero;
If it is determined that the current discharge current is zero, then the duration that the discharge current is zero is updated;
Judge whether the duration that the discharge current is zero is more than the default time of repose;And
If it is determined that the duration that the discharge current is zero is more than the default time of repose, then into the fourth stage to calculate The internal resistance of cell of the battery.
9. internal resistance of cell computational methods as claimed in claim 8, it is characterised in that being somebody's turn to do for the battery is judged in the phase III Persistently whether the default time of repose is also included cut-off discharge condition with obtaining the step of the steady state voltage:
If it is determined that the duration that the discharge current is zero no more than the default time of repose, then re-executes the detection electricity The step of discharge current in pond.
10. internal resistance of cell computational methods as claimed in claim 9, it is characterised in that judge the battery in the phase III Persistently whether the default time of repose is also included the cut-off discharge condition with obtaining the step of the steady state voltage:
If it is determined that the current discharge current is not zero, then the current discharge current is set as the original discharge current, held one Continuous discharge time is set as zero and this is preset into time of repose being set as zero, and returns to the first stage to rejudge the battery Electric discharge whether reach the constant-current discharge state.
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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110346651A (en) * 2019-07-19 2019-10-18 国网天津市电力公司 Super capacitor module capacity internal resistance test device and its detection method

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6298278A (en) * 1985-10-25 1987-05-07 Nissan Motor Co Ltd Battery state detecting device
CN2769900Y (en) * 2005-02-07 2006-04-05 杭州华塑电子设备有限公司 Accumulator battery on-line monitoring system
CN101359035A (en) * 2007-07-30 2009-02-04 比亚迪股份有限公司 Method and apparatus for measuring battery internal resistance
TW201105993A (en) * 2009-08-13 2011-02-16 Neotec Semiconductor Ltd Battery capacity estimation by DCIR
JP2013032947A (en) * 2011-08-01 2013-02-14 Auto Network Gijutsu Kenkyusho:Kk Device and method for calculating internal resistance value
CN103018566A (en) * 2012-11-26 2013-04-03 力神迈尔斯动力电池系统有限公司 Lithium ion battery direct current internal resistance testing method and battery screening method
CN202939223U (en) * 2012-10-23 2013-05-15 江苏省电力公司苏州供电公司 Storage battery on-line internal resistance testing device
JP2013101076A (en) * 2011-11-09 2013-05-23 Furukawa Electric Co Ltd:The Internal resistance measuring apparatus and internal resistance measurement method
CN103308858A (en) * 2012-03-07 2013-09-18 深圳市柏特瑞电子有限公司 Online inspection system for internal resistances of batteries
JP2014178324A (en) * 2014-04-16 2014-09-25 Gs Yuasa Corp Method for diagnosing charging state of battery pack

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5558941B2 (en) * 2010-06-30 2014-07-23 三洋電機株式会社 How to detect battery internal resistance
CN102393508A (en) * 2011-09-30 2012-03-28 湖南大学 Nondestructive diagnosis of battery performance
CN103901344A (en) * 2012-12-24 2014-07-02 财团法人金属工业研究发展中心 Battery residual power estimating system and estimating method thereof
TW201531725A (en) * 2014-02-11 2015-08-16 Hon Hai Prec Ind Co Ltd Method and apparatus for detecting internal resistance of a battery

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6298278A (en) * 1985-10-25 1987-05-07 Nissan Motor Co Ltd Battery state detecting device
CN2769900Y (en) * 2005-02-07 2006-04-05 杭州华塑电子设备有限公司 Accumulator battery on-line monitoring system
CN101359035A (en) * 2007-07-30 2009-02-04 比亚迪股份有限公司 Method and apparatus for measuring battery internal resistance
TW201105993A (en) * 2009-08-13 2011-02-16 Neotec Semiconductor Ltd Battery capacity estimation by DCIR
JP2013032947A (en) * 2011-08-01 2013-02-14 Auto Network Gijutsu Kenkyusho:Kk Device and method for calculating internal resistance value
JP2013101076A (en) * 2011-11-09 2013-05-23 Furukawa Electric Co Ltd:The Internal resistance measuring apparatus and internal resistance measurement method
CN103308858A (en) * 2012-03-07 2013-09-18 深圳市柏特瑞电子有限公司 Online inspection system for internal resistances of batteries
CN202939223U (en) * 2012-10-23 2013-05-15 江苏省电力公司苏州供电公司 Storage battery on-line internal resistance testing device
CN103018566A (en) * 2012-11-26 2013-04-03 力神迈尔斯动力电池系统有限公司 Lithium ion battery direct current internal resistance testing method and battery screening method
JP2014178324A (en) * 2014-04-16 2014-09-25 Gs Yuasa Corp Method for diagnosing charging state of battery pack

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