CN104349932B - For determining the method for loss state of battery module, battery management system, electric pressure battery system and motor vehicles - Google Patents
For determining the method for loss state of battery module, battery management system, electric pressure battery system and motor vehicles Download PDFInfo
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- CN104349932B CN104349932B CN201380029538.9A CN201380029538A CN104349932B CN 104349932 B CN104349932 B CN 104349932B CN 201380029538 A CN201380029538 A CN 201380029538A CN 104349932 B CN104349932 B CN 104349932B
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000005259 measurement Methods 0.000 claims abstract description 10
- 238000000926 separation method Methods 0.000 claims abstract description 7
- 238000003860 storage Methods 0.000 claims description 13
- 230000010363 phase shift Effects 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 7
- 238000001453 impedance spectrum Methods 0.000 claims description 7
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract description 3
- 229910001416 lithium ion Inorganic materials 0.000 abstract description 3
- 230000001052 transient effect Effects 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 description 13
- 238000010168 coupling process Methods 0.000 description 13
- 238000005859 coupling reaction Methods 0.000 description 13
- 230000032683 aging Effects 0.000 description 4
- 238000007599 discharging Methods 0.000 description 2
- 239000002000 Electrolyte additive Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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]
- G01R31/389—Measuring internal impedance, internal conductance or related variables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/51—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by AC-motors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/16—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to battery ageing, e.g. to the number of charging cycles or the state of health [SoH]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
- B60L58/21—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having the same nominal voltage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/547—Voltage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/549—Current
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/392—Determining battery ageing or deterioration, e.g. state of health
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Secondary Cells (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention relates to a kind of for the method determining the loss state of battery module (130), this battery module (130) has at least one secondary battery unit, such as lithium ion battery cells, such as apply in the traction battery (140) of electric or hybrid motor vehicles such as it, also apply in the motor vehicles with at least part of or temporary transient electrically driven (operated) driving means (150).Therefore the present invention is directed to motor vehicles and battery management system (160).Described method includes that basis determines ohmic internal resistance to the measurement of current intensity.Described battery module (100) can or electrical separation series electrically connected with at least one another battery module (100).The method is characterized in that, described method includes separating described battery module (100) and measuring the current intensity of separated battery module (100).Therefore the determination on loss state does not affect other application of at least one another battery module.
Description
Technical field
A kind of method that the present invention relates to loss state for determining battery module, this storage
Battery module has at least one secondary battery unit, such as lithium ion battery cells, such as its example
As applied in the traction battery of electric or hybrid motor vehicles, also there is at least portion
Divide or the motor vehicles of temporary transient electrically driven (operated) driving means is applied.Therefore the present invention is directed to motor-driven
Car and battery management system.
Background technology
Owing to the storage capacity improved, rechargeablility frequently and higher energy are close
Degree accumulator is increasingly widely applied.There is the accumulator of less energy storage capability
Such as little portable electronic device, as mobile phone, kneetop computer, video camera and
Like this, and there is the accumulator of high ability as the energy for hybrid power or electric motor car
The driving of the motor of grade or be used as static accumulator.
Accumulator can such as be formed by being connected in series battery module, partly
Also realize being connected in parallel of battery module, and battery module self can by series connection and/
Or the secondary battery unit composition being connected in parallel.
Driving particularly electric pressure accumulator for hybrid power or the motor of electric vehicle
System is applicable, and this electric pressure battery system is also referred to as the direct transducer of accumulator
(BDC).Electric pressure battery system includes at least one battery module group, and it has
One or more battery modules being connected in series.Other battery module group can be therewith
It is connected in parallel.Battery module have at this coupling unit and by means of coupling unit can
Body ground is electrically connected and can electrical separation.Therefore, it is possible to by correspondingly connected and separation module
Carry out applied voltage grade battery system, in order to produce the voltage curve that classification is variable.Accordingly
Design such as can produce the voltage gradation distribution of three substantially the same mutual phase shifts, institute
State voltage gradation distribution and can be used for electronic or mixing electricity by means of the rearmounted device for inversion
The driving of machine.
For battery management, such as in order to drive control module in principle, in order to improve accumulator
Safety, for battery module and the efficiency of battery system that combined by battery module
Improve and life uses battery management system.The task of battery management system determines that
The current state of battery module.Belong to the information applied for this be such as battery module or
The impedance of the secondary battery unit being included in battery module, ohmic internal resistance, its middle impedance relies on
Charged state, temperature and degree of aging in secondary battery unit.
According to prior art realize accumulator properly functioning outside belonging to measurement.Example
As proposed in ISO 12405, in accumulator to be tested time interval in second scope
Apply the charging and discharging electric current of pulse form and before and after current impulse, measure electric power storage
Voltage on pond.Impedance is so produced as the difference of the voltage of measurement and the ratio of the intensity of current impulse
Example.
Summary of the invention
According to the present invention provide a kind of according to claim 1 for determining the damage of battery module
The method of consumption state.Described method includes that basis determines ohmic internal resistance to the measurement of current intensity,
Wherein said battery module can be series electrically connected with at least one another battery module
Or separate with at least one another battery module described.The method is characterized in that, described side
Method includes separating described battery module and measuring separated electric power storage in the loop disconnected
The current intensity of pond module.
Therefore the determination on loss state does not affect other application of remaining battery module.
Therefore in a kind of form of implementation, when described during using described battery module group
When battery module (100) is separated to produce variable voltage, implement described method.
Described method can include electrical impedance spectrum.
Electrical impedance spectrum can include applying voltage modulated to battery module.Described method
It is then able to include determining, according to measured current intensity, the electricity caused due to voltage modulated
Intensity of flow is modulated.Determine the ohmic internal resistance of described battery module, to enable to voltage modulated
It is modulated into ratio with current intensity.In so easily can determining ohm by means of phasing
Resistance.
The most in one form, the scope of electrical impedance spectrum changes electricity as follows
Pressure modulation so that described voltage modulated and determined by current intensity modulation between phase shift
It is zero.Described ohmic internal resistance so can be determined directly as voltage modulated and current intensity modulation
Business.
In order to determine that loss state can particularly realize having the voltage tune of a modulating frequency
System and electrical impedance spectrum can include that at least another voltage with another modulating frequency is adjusted
System.
Can be that the different charged states of battery module realize measurement to current intensity.
By means of the measurement of current intensity being can determine the electrification characterizing described battery module
The time constant of process.Realize the time constant predetermined with at least one to compare, in order to especially
Accurately determine the loss state of described battery module.
The present invention is additionally related to a kind of battery management system for battery module group,
This battery module group includes storage that is that at least two can be connected in series with each other and that can be separately separated
Battery module, wherein said battery module group fits through connection and separates described accumulator mould
Block produces variable voltage.Furthermore battery management system includes for measuring battery module electric current
The device of intensity and for the current intensity of measurement is sent to described battery management system
Device.Said battery management system be set to by least two battery module it
The battery module current intensity of one is used for determining one of described at least two battery module
Loss state, described current intensity described in the separation implemented to produce variable voltage extremely
One of few two battery modules period is transmitted.
In one form, described battery management system includes one for producing friendship
Flow the device of voltage and be additionally set to cause to the applying friendship of separated battery module
Stream voltage, determines the alternating current intensity caused due to described alternating voltage and determines described storage
The ohmic internal resistance of battery module is so that described alternating voltage becomes ratio with described alternating current intensity
Example.Said battery management system can also be set to, and so changes described alternating voltage,
So that the phase shift between described alternating voltage and the described alternating current intensity determined is zero.
And described ohmic internal resistance can be defined as alternating voltage and friendship by described battery management system
The business of stream current intensity.
The present invention also relates to electric pressure battery system, being used for producing mutual phase shift can
The voltage become, including battery module group with according to the battery management system of the present invention.
The present invention is finally directed to a kind of motor vehicles, including the most temporarily or partially can electrically drive
Dynamic driver element and the electric pressure battery system according to the present invention.
The present invention is advantageously improved and proposes in the dependent claims and say in explanation
Bright.
Accompanying drawing explanation
It is further elucidated with embodiments of the invention with reference to the accompanying drawings with following description.Wherein:
Fig. 1 shows exemplary battery module, and the present invention can be applied thereon；
Fig. 2 shows exemplary battery module group, and the present invention can be applied thereon；
And
Fig. 3 shows the exemplary electric pressure battery system according to the present invention.
Detailed description of the invention
The present invention is at the electric pressure battery system for electric or hybrid motor vehicles
Research and development scope completes and hereinafter describes in embodiment.The present invention but be not restricted to that
This embodiment, but all electric power storages being made up of multiple battery modules can be advantageously applied in
In cell system, described battery system allow battery module series connection connect, the most electric
Connect；And separate, namely bridge.Particularly the application purpose of battery system is for this
Invent inessential.
Fig. 1 shows the exemplary battery module 100 with coupling unit 110.Coupling
Close unit 110 or the integrated ingredient of battery module 100 or as in FIG
Shown in be the part of the system 120 including battery module 100.Coupling unit 110 allows electricity
Gas connects and separates battery module 100, such as, separate the internal terminal of battery module and be
The terminal 105 and 106 of system 120.The terminal 105 and 106 also referred to as accumulator of system 120
Module pole.It is to drive that the coupling unit of the example illustrated passes through a signal input part 107 for this
Control.But it is also possible that coupling unit 110 is not having outside to drive control with predetermined frequency
In the case of connect and separate this module.It is possible to produce rectangular voltage.
If present multiple such module 100 or system 120 are in series at battery module
Arranging in group 130, as shown in FIG. 2, and the time repeatedly connects and separates with staggering,
So can produce the classification of voltage between the terminal 135 and 136 of battery module group 130
Variable voltage curve.The terminal 135 and 136 also referred to as accumulator of battery module group 130
Group terminal or accumulator battery pole.Produce the current curve corresponding to voltage curve under a load.
In a unshowned embodiment, all modules concentrated in a group are via uniquely
Common coupling unit connects and separates.This can be set to, and produces variable with predetermined frequency
Voltage.Or can be the variable voltage with variable frequency, particularly if there are jointly
The control of driving of coupling unit be possibly used for the change of frequency.
Fig. 3 shows an exemplary electric pressure battery system 140, the most mutually
Three battery module groups 130 are set in parallel.By the driving of coupling unit 110 in group 130
In each in so connect and separation module 100, so that group 130 offer accordingly has
The most variable voltage of single phase position.The such as variable voltage of each group 130 mutually has
There is the phase shift in 1/3rd cycles.By means of electric pressure battery system 140 with after being suitable for
The device 170 for inversion put can so produce rotating field, can be driven by this rotating field
Galvanic electricity moves or hybrid powder motor 150.Additionally, the width of the variable voltage provided by change
Current curve in group can be matched with the predeterminated target of motor 150 by value and/or mutually phase shift
Moment of torsion is also matched with the predeterminated target power of motor 150 by power then.At motor 150 at machine
It is also possible that passed through motor 150 by Brake Energy and obtain electric energy and incite somebody to action in application in motor-car
These electric energy feed back to by means of inverter 170 and by driving control coupling unit 110 accordingly
Charge in battery module 100 and the most again to module.
Each in battery module 100 is providing during alternating voltage or in such feedback
Period periodically separates a time period.The battery module 100 separated is deposited as the loop disconnected
And thus for loss diagnosis be addressable.
This determines at continuous operation, the most namely during discharging or in charging
Period and be also possible with one such as lower frequency, this frequency is corresponding to the frequency of separation process
Rate.If changed during such as impedance is determined and to be in operation, and the predetermined mesh of motor 150
Mark power does not the most change, then this represents the ageing process of the module related to.The most possible
It is that corresponding rated impedance can be saved in storage by predetermined target power by the difference for motor 150
In the memory element of battery management system.So determined by measurement under given target power
The deviation energy of impedance and the rated impedance that given target power preserved in the memory unit
The change of the secondary battery unit in enough representation modules.
The battery module separated particularly can implement electrical impedance spectrum EIS.?
This measures current intensity modulation, and the modulation of this current intensity is due to accumulator applying voltage modulated
Realize.Voltage modulated can be to have smaller amplitude and the alternating voltage of variable frequencies omegaThe current intensity modulation so measuredFollow and there is same frequency ω and phase place's
Voltage modulated.For what impedance was so suitable for it is
If the frequency change of voltage modulated now, then phase place can be zero.So voltage
Amplitude produces impedance with the business of current intensity amplitude
Under a load and during charging between module 100 different separate corresponding module
Charged state change.According to charged state, the chemical combination of electrode member, surface,
The result of the thickness effect EIS of granular size and electrode.Particularly in lithium-ions battery so
And not only there, the relevant change of the combination of electrolyte and/or in the electrolyte additive
Affect charged state, EIS, because electrochemical process based on voltage generation enters by different way
OK.This reflects with the most different frequencies or time constant.Time constant and charged state it
Between relation, the particularly change of this relation can accordingly act as the loss for battery module
State or the feature of loss.
In a unshowned embodiment all in electric pressure battery system concentrate
Module connects via the most common coupling unit and separates.
One exemplary battery management system 160 combines figure 3 illustrates exemplary
Voltage classification battery system 140 to detect the electric current provided by each battery module 130 strong
Spend and control module 100 or the system arranged in group 130 via the connection with group 130
120.Battery management system 160 includes an other alternating current the most unshowned
Potential source, is used for producing AC influence voltage, its have the amplitude the least compared to variable voltage and
Variable frequency.By applying AC influence voltage to the battery module separated, flow through exchange
Electric current.So can be determined as follows the ohmic internal resistance of battery module 100, its side
Method is so that AC influence voltage is proportional to alternating current intensity.Ohmic internal resistance and frequency
Wherein AC influence voltage and alternating current can be used in determining electric power storage in a phase place
The loss of pond module.
The present invention so allows in the continuous operation subcontinuous monitoring to module status.
This achieves basis and the determination of impedance and/or time constant is come quickly and reliably identification module
Loss in efficiency or the most malfunctioning.This is favourable, because module is identified as loss or old
That change and be identified as malfunctioning or aging module and can be replaced, and because by changing accordingly
Become to drive coupling unit to control and can compensate at least in part owing to malfunctioning or aging module is drawn
The interference of the power provided by accumulator battery risen.
Claims (10)
1. the method being used for determining the loss state of battery module (100), wherein said side
Method includes that basis determines ohmic internal resistance, and wherein said accumulator to the measurement of current intensity
Module (100) can series electrically connected with at least one another battery module (100) or
Separate with at least one another battery module (100) described, it is characterised in that described side
Method includes separating described battery module (100) and measuring separated in the loop disconnected
The current intensity of battery module (100).
Method the most according to claim 1, wherein, when using described accumulator mould
Block (100) and at least one another battery module (100) period described accumulator mould described
When block (100) is separated to produce variable voltage, implement described method.
Method the most according to claim 1 and 2, wherein, described method includes electrically
Impedance spectra applies voltage modulated, according to measured electricity to described battery module (100)
Intensity of flow determines the current intensity modulation caused due to described voltage modulated, and is used for determining
The ohmic internal resistance of described battery module (100), so that described voltage modulated and described electricity
Intensity of flow is modulated into ratio.
Method the most according to claim 3, wherein, described electrical impedance spectrum is such
Change described voltage modulated so that described voltage modulated with determined by current intensity modulation
Between phase shift be zero, and described ohmic internal resistance is confirmed as voltage modulated and current intensity and adjusts
The business of system.
Method the most according to claim 1 and 2, wherein, for described battery module
(100) different charged states carry out the measurement to current intensity.
Method the most according to claim 5, wherein, by means of the survey to current intensity
Amount determines the time constant of the electrochemical process characterizing described battery module (100), will
The described time constant time constant predetermined with at least one compares, in order to determine described accumulator
The loss state of module (100).
7. for the battery management system (160) of battery module group (130), this storage
Group of battery modules includes storage that is that at least two can be serially connected electrical connection and that can be separately separated
Battery module (100), wherein said battery module group (130) fits through connection and divides
Variable voltage, described battery management system (160) is produced from described battery module (100)
Including for measuring the device of battery module current intensity and also including for by measured
Current intensity is sent to the device of described battery management system (160), wherein said electric power storage
Pond management system (160) be set to be used for measured current intensity to determine described at least two
The loss state of one of individual battery module (100), wherein said measured electric current is strong
Degree is at the separation described at least two battery module implemented to produce described variable voltage
One of (100) period is transmitted.
Battery management system the most according to claim 7 (160), wherein, described
Battery management system (160) includes the device for producing alternating voltage and additionally sets
It is set to cause and applies alternating voltage to separated battery module, determine due to described alternating current
Press the alternating current intensity caused and the ohmic internal resistance determining described battery module (100)
So that described alternating voltage is proportional to described alternating current intensity, wherein said accumulator pipe
Reason system (160) is also configured to, and so changes described alternating voltage, so that in described friendship
Stream voltage and determined by phase shift between alternating current intensity be zero, and wherein said electric power storage
Described ohmic internal resistance is defined as alternating voltage and alternating current intensity by pond management system (160)
Business.
9. electric pressure battery system (140), variable for producing mutual phase shift
Voltage, including battery module group (130) with according to one of claim 7 to 8 Suo Shu
Battery management system (160).
10. motor vehicles, including driver element (150) that the most temporarily or partially can be electrically driven
With electric pressure battery system (140) according to claim 9.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012209648.5A DE102012209648B4 (en) | 2012-06-08 | 2012-06-08 | Method for determining a wear condition of a battery module, battery management system, voltage level battery system and motor vehicle |
| DE102012209648.5 | 2012-06-08 | ||
| PCT/EP2013/060746 WO2013182435A2 (en) | 2012-06-08 | 2013-05-24 | Method for determining the state of exhaustion of a battery module, battery management system, voltage step battery system and motor vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104349932A CN104349932A (en) | 2015-02-11 |
| CN104349932B true CN104349932B (en) | 2016-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380029538.9A Active CN104349932B (en) | 2012-06-08 | 2013-05-24 | For determining the method for loss state of battery module, battery management system, electric pressure battery system and motor vehicles |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN104349932B (en) |
| DE (1) | DE102012209648B4 (en) |
| WO (1) | WO2013182435A2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016202495A1 (en) * | 2016-02-18 | 2017-08-24 | Continental Automotive Gmbh | Method for calibrating a measuring resistor, calibration device, battery sensor and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009038663B4 (en) | 2009-08-24 | 2017-07-06 | Audi Ag | Motor vehicle with a plurality of batteries and method for battery diagnosis |
| TWI404963B (en) * | 2010-02-10 | 2013-08-11 | Chung Shan Inst Of Science | Method for detecting battery module status |
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| Publication number | Publication date |
|---|---|
| WO2013182435A2 (en) | 2013-12-12 |
| DE102012209648A1 (en) | 2013-12-12 |
| CN104349932A (en) | 2015-02-11 |
| DE102012209648B4 (en) | 2024-02-01 |
| WO2013182435A3 (en) | 2014-04-24 |
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