CN104349932A - Method for determining the state of exhaustion of battery module, battery management system, voltage step battery system and motor vehicle - Google Patents
Method for determining the state of exhaustion of battery module, battery management system, voltage step battery system and motor vehicle Download PDFInfo
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- CN104349932A CN104349932A CN201380029538.9A CN201380029538A CN104349932A CN 104349932 A CN104349932 A CN 104349932A CN 201380029538 A CN201380029538 A CN 201380029538A CN 104349932 A CN104349932 A CN 104349932A
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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]
- G01R31/389—Measuring internal impedance, internal conductance or related variables
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- 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]
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- 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
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- 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
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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]
- G01R31/392—Determining battery ageing or deterioration, e.g. state of health
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- 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
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- 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 invention relates to a method for determining a state of exhaustion of a battery module (130) comprising at least one battery cell, for example a lithium ion battery cell, such as are used for example in traction batteries (140) of electric or hybrid motor vehicles, i.e. in motor vehicles having at least partly or intermittently electrically driven drives (150). The invention therefore also relates to a motor vehicle and a battery management system (160). The method comprises the determination of the non-reactive internal resistance from measurements of current intensities. The battery module (100) can be connected electrically in series to at least one further battery module (100) or isolated electrically. The method is characterized in that the method comprises isolating the battery module (100) and measuring current intensities of the isolated battery module (100). The other use of the at least one further battery module is therefore not impaired by the determination of the state of exhaustion.
Description
Technical field
The present invention relates to a kind of method of the loss state for determining battery module, this battery module has at least one battery cell, such as lithium ion battery cells, as it such as applies in the traction battery of electronic or hybrid motor vehicle, also apply in the self-propelled vehicle with at least part of or temporary transient electrically operated actuating device.Therefore the present invention also relates to self-propelled vehicle and battery management system.
Background technology
Because the storage capacity, rechargeablility frequently and the higher energy density storage battery that improve obtain applying more and more widely.There is the storage battery of less energy storage capability such as little portable electronic device, as vehicular telephone, kneetop computer, pick up camera and like this, and the storage battery with high ability as the energy for the driving of the motor of hybrid power or elec. vehicle etc. or be used as static storage battery.
Storage battery can such as be formed by being connected in series battery module, wherein partly also realizes being connected in parallel of battery module, and battery module self can be made up of the battery cell of connecting and/or be connected in parallel.
For the motor of hybrid power or elec. vehicle driving particularly voltage class battery system be applicable, this voltage class battery system is also referred to as the direct conv of storage battery (BDC).Voltage class battery system comprises at least one battery module group, and it has one or more battery module be connected in series.Other battery module group can connect with it in parallel.Battery module has coupling unit at this and can be individually electrically connected by means of coupling unit and can electrical separation.Therefore, it is possible to by correspondingly connection and separation module carry out applied voltage grade battery system, to produce the variable voltage curve of classification.In respective design, such as can produce the voltage gradation distribution of three substantially the same mutual phase shifts, described voltage gradation distribution can be used for driving that is electronic or hybrid electric motor by means of the rearmounted device for inversion.
In order to battery management, such as, in order to drive control module in principle, in order to improve the safety of storage battery, in order to battery module and the efficiency of battery system that combined by battery module improve and life employing battery management system.The task of battery management system determines the current state of battery module.What belong to the information for this reason applied is such as battery module or be included in impedance, the ohmic internal resistance of the battery cell in battery module, and its middle impedance depends on the charge condition of battery cell, temperature and degree of aging.
According to the measurement belonging to existing techniques in realizing is outside the normal operation of storage battery.Such as propose in ISO 12405, in the time gap in second scope, apply the charging and discharging electric current of pulse form and the voltage measured before and after current impulse on storage battery to storage battery to be tested.Impedance is so produced as the ratio of the difference of the voltage of measurement and the intensity of current impulse.
Summary of the invention
According to the invention provides a kind of according to claim 1 for determining the method for the loss state of battery module.Described method comprises according to determining ohmic internal resistance to the measurement of intensity of current, and wherein said battery module can be connected with at least one another battery module and is electrically connected or be separated with at least one another battery module described.The method is characterized in that, described method comprises the intensity of current being separated described battery module and measuring separated battery module in the loop disconnected.
Therefore the determination of loss state is not affected to other application of all the other battery modules.
Therefore in a kind of form of implementation, when use described battery module (100) during described battery module group separated to produce variable voltage time, implement described method.
Described method can comprise electrical impedance spectrum.
Electrical impedance spectrum can comprise accumulators module and apply voltage modulated.According to measured intensity of current, described method can comprise subsequently determines that the intensity of current caused due to voltage modulated is modulated.Determine the ohmic internal resistance of described battery module, be modulated into ratio so that voltage modulated and intensity of current can be made.So can easily by means of phase correction determination ohmic internal resistance.
Therefore in one form, in the scope of electrical impedance spectrum, voltage modulated is changed as follows, to make phase shift between described voltage modulated and determined intensity of current are modulated for zero.Described ohmic internal resistance so directly can be defined as the business that voltage modulated and intensity of current are modulated.
In order to determine that loss state particularly can realize having the voltage modulated of a modulating frequency and electrical impedance spectrum can comprise at least that another has the voltage modulated of another modulating frequency.
Can be the measurement of different charge conditions realizations to intensity of current of battery module.
By means of the time constant can determining the electrochemical process characterizing described battery module to the measurement of intensity of current.Realize comparing with at least one constant, so that the special loss state determining described battery module exactly predetermined time.
The present invention relates to a kind of battery management system for battery module group in addition, this battery module group comprises at least two battery modules with being separated separately that are that can mutually be connected in series, and wherein said battery module group is applicable to by connecting and being separated described battery module generation variable voltage.Battery management system moreover the device comprised for measuring battery module intensity of current and the device for the intensity of current of measurement being sent to described battery management system.Loss state one of at least two battery modules described in said battery management system is set to the battery module intensity of current one of at least two battery modules to be used for determine, described intensity of current is being transmitted to one of produce at least two battery modules described in separation that variable voltage implements period.
In one form, described battery management system comprises one for generation of the device of alternating-current voltage/AC voltage and is set in addition to cause and applies alternating-current voltage/AC voltage to separated battery module, determine alternating current intensity because described alternating-current voltage/AC voltage causes and determine the ohmic internal resistance of described battery module with make described alternating-current voltage/AC voltage and described alternating current intensity proportional.Said battery management system can also be set to, and so changes described alternating-current voltage/AC voltage, to make phase shift between described alternating-current voltage/AC voltage and the described alternating current intensity determined for zero.And described ohmic internal resistance can be defined as the business of alternating-current voltage/AC voltage and alternating current intensity by described battery management system.
The present invention also relates to voltage class battery system, for generation of the voltage that mutual phase shifts is variable, comprise battery module group and according to battery management system of the present invention.
The present invention finally also relates to a kind of self-propelled vehicle, comprises at least temporarily or part can electric gas-powered driver element and according to voltage class battery system of the present invention.
The favourable improvement of the present invention proposes in the dependent claims and is described in explanation.
Accompanying drawing explanation
Embodiments of the invention are illustrated further with reference to the accompanying drawings with following explanation.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 according to exemplary voltage class battery system of the present invention.
Detailed description of the invention
The present invention completes and describes in embodiment hereinafter in the research and development scope of the voltage class battery system for electronic or hybrid motor vehicle.The present invention is still not limited to this embodiment, but can advantageously be applied in all battery systems be made up of multiple battery module, and described battery system allows the series connection of battery module to connect, be namely electrically connected; And be separated, namely bridge joint.Particularly the application purpose of battery system is inessential for the present invention.
Fig. 1 shows the exemplary battery module 100 with coupling unit 110.The integrated component part of coupling unit 110 or battery module 100 or be the part of the system 120 comprising battery module 100 as shown in FIG. 1.Coupling unit 110 allows electrical connection and is separated battery module 100, such as, be separated the internal terminal of battery module and the terminal 105 and 106 of system 120.The terminal 105 and 106 of system 120 is also referred to as battery module pole.The coupling unit of the example illustrated can drive control by a signal input part 107 for this reason.But also possible that, coupling unit 110 is connected when not having outside to drive control with predetermined frequency and is separated this module.Rectangular voltage can be produced thus.
If present multiple such module 100 or system 120 are in series arranged in battery module group 130, as shown in FIG. 2, and the time repeatedly connects and is separated with staggering, the voltage curve that the classification of voltage is variable so can be produced between the terminal 135 and 136 of battery module group 130.The terminal 135 and 136 of battery module group 130 is also referred to as battery pack terminal or battery pack pole.Produce the current curve corresponding to voltage curve under a load.
In a unshowned embodiment, all modules concentrated in a group connect via uniquely common coupling unit and are separated.This can be set to, and produces variable voltage with predetermined frequency.Or can be the variable voltage with variable frequency, if particularly there is driving control and may being used for the change of frequency of common coupling unit.
Fig. 3 shows an exemplary voltage class battery system 140, wherein arranges three battery module groups 130 parallel with one another.By so connecting and separation module 100 in each in group 130 of the driving of coupling unit 110, provide the voltage variable equally with single phase position to make organizing 130 accordingly.Such as the variable voltage of each group 130 has the phase shift in 1/3rd cycles mutually.So can produce rotation field by means of voltage class battery system 140 and the applicable rearmounted device 170 for inversion, electronic or hybrid powder motor 150 can be driven by this rotation field.In addition, by change the amplitude of variable voltage that provides and/or mutually phase shift the current curve in group can be matched with the intended target power of motor 150 and then moment of torsion be matched with the intended target power of motor 150.In motor 150 application in a motor vehicle also possible that, obtain electric energy by braking energy by motor 150 and these electric energy to be fed back in battery module 100 by means of inverter 170 by the corresponding control coupling unit 110 that drives and charged to module again thus.
Each in battery module 100 is regularly separated a time period during providing alternating-current voltage/AC voltage or during such feedback.The battery module 100 be separated exists as the loop disconnected and diagnoses for loss is thus addressable.
This is determined at continuous operation, under a load namely at interdischarge interval or between charge period and with one if lower frequency is also possible, this frequency is corresponding to the frequency of separation process.If such as impedance is determined and to be in operation change, and the predetermined target power of motor 150 does not also change, so this represents the ageing process of the module related to.In addition likely for the difference of motor 150 can be predetermined target power corresponding rated impedance is kept in the memory cell of battery management system.So can the change of battery cell in representation module by the deviation measuring the impedance determined and the rated impedance of preserving in the memory unit for given target power under given target power.
The battery module be separated particularly can implement electrical impedance spectrum EIS.Measure intensity of current modulation at this, the modulation of this intensity of current realizes because accumulators applies voltage modulated.Voltage modulated can be the alternating-current voltage/AC voltage with smaller amplitude and variable frequencies omega
the intensity of current modulation of so measuring
follow and there is same frequency ω and phase place
voltage modulated.What be so suitable for for impedance is
If the change of frequency of voltage modulated now, so phase place can be zero.So the business of voltage magnitude and intensity of current amplitude produces impedance
Between the difference of module 100 is separated, the charge condition of corresponding module changes under a load and between charge period.According to charge condition, the result of the thickness effect EIS of the chemical association of electrode member, surface, grain size and electrode.Particularly in lithium-ions battery but not only there, the relevant variable effect charge condition of electrolytical combination and/or in the electrolyte additive, EIS, because the electrochemical process produced based on voltage carries out by different way.This is with corresponding different frequency or time constant reflection.Therefore the change of the relation between time constant and charge condition, particularly this relation can be used as the loss state of battery module or the feature of loss.
In a unshowned embodiment, all modules concentrated in voltage class battery system connect via unique common coupling unit and are separated.
Exemplary battery management system 160 detects in conjunction with exemplary voltage classification battery system 140 shown in Figure 3 the intensity of current that provided by each battery module 130 and the module 100 arranged in group 130 via the connection control with group 130 or system 120.Battery management system 160 comprises a unshowned other AC voltage source in the accompanying drawings, and for generation of AC influence voltage, it has compared to the very little amplitude of variable voltage and variable frequency.By applying AC influence voltage to the battery module be separated, flow through alternating current.So can determine the ohmic internal resistance of battery module 100 in the following way, its method be make AC influence voltage and alternating current intensity proportional.Ohmic internal resistance and frequency---wherein AC influence voltage and alternating current are in a phase place---can be used in the loss determining battery module.
The present invention so allows in the subcontinuous monitoring of continuous operation to module status.This achieve according to coming fast the determination of impedance and/or time constant and the reliably loss in efficiency of identification module or even malfunctioning.This is favourable, because module is identified as loss or aging and be identified as malfunctioning or aging module and can be replaced, and because by corresponding change the interference that control can compensate the power provided by battery pack caused due to malfunctioning or aging module is at least in part driven to coupling unit.
Claims (10)
1. for determining the method for the loss state of battery module (100), wherein said method comprises according to determining ohmic internal resistance to the measurement of intensity of current, and wherein said battery module (100) can be connected with at least one another battery module (100) and is electrically connected or be separated with at least one another battery module (100) described, it is characterized in that, described method comprises the intensity of current being separated described battery module (100) and measuring separated battery module (100) in the loop disconnected.
2. method according to claim 1, wherein, when during using described battery module (100) and at least one another battery module (100) described described battery module (100) separated to produce variable voltage time, implement described method.
3. method according to claim 1 and 2, wherein, described method comprises electrical impedance spectrum and applies voltage modulated to described battery module (100), the intensity of current modulation because described voltage modulated causes is determined according to measured intensity of current, and for determining the ohmic internal resistance of described battery module (100), be modulated into ratio to make described voltage modulated and described intensity of current.
4. method according to claim 3, wherein, described electrical impedance spectrum so changes described voltage modulated, and to make phase shift between described voltage modulated and determined intensity of current are modulated for zero, and described ohmic internal resistance is confirmed as the business that voltage modulated and intensity of current are modulated.
5. according to the method one of the claims Suo Shu, wherein, for the different charge conditions of described battery module (100) carry out the measurement to intensity of current.
6. method according to claim 5, wherein, by means of the time constant measurement of intensity of current being determined to the electrochemical process characterizing described battery module (100), described time constant is compared, to determine the loss state of described battery module (100) with at least one constant predetermined time.
7. for the battery management system (160) of battery module group (130), this battery module group comprise at least two can mutually connect electrical connection with the battery module that can be separated separately (100), wherein said battery module group (130) is applicable to by connecting and being separated described battery module (100) generation variable voltage, described battery management system (160) comprises the device for measuring battery module intensity of current and also comprises the device for measured intensity of current being sent to described battery management system (160), loss state one of at least two battery modules (100) described in wherein said battery management system (160) is set to measured intensity of current to be used for determine, wherein said measured intensity of current is being transmitted to one of produce at least two battery modules (100) described in separation that described variable voltage implements period.
8. battery management system according to claim 7 (160), wherein, described battery management system (160) comprises the device for generation of alternating-current voltage/AC voltage and is set in addition cause to separated battery module applying alternating-current voltage/AC voltage, determine alternating current intensity because described alternating-current voltage/AC voltage causes and determine the ohmic internal resistance of described battery module (100) with make described alternating-current voltage/AC voltage and described alternating current intensity proportional, wherein said battery management system (160) is also set to, the described alternating-current voltage/AC voltage of change like this, to make phase shift between described alternating-current voltage/AC voltage and determined alternating current intensity for zero, and described ohmic internal resistance is defined as the business of alternating-current voltage/AC voltage and alternating current intensity by wherein said battery management system (160).
9. voltage class battery system (140), for generation of the voltage that mutual phase shifts is variable, comprises battery module group (130) and according to the battery management system (160) one of claim 7 to 8 Suo Shu.
10. self-propelled vehicle, comprises at least temporarily or part can electric gas-powered driver element (150) and voltage class battery system according to claim 9 (140).
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 true CN104349932A (en) | 2015-02-11 |
| CN104349932B CN104349932B (en) | 2016-12-14 |
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| 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) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107091954A (en) * | 2016-02-18 | 2017-08-25 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Method, calibrating installation, battery sensor and the storage medium of calibration measurement resistance |
| CN109416391A (en) * | 2016-07-12 | 2019-03-01 | 宝马股份公司 | For determining method, battery module and the device of the internal resistance of battery cell |
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| US20110234166A1 (en) * | 2010-02-10 | 2011-09-29 | Chin-Chuan Liu | Battery module state detection method |
| WO2011128136A1 (en) * | 2010-04-16 | 2011-10-20 | Sb Limotive Company Ltd. | Battery with variable output voltage |
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| DE102010041046A1 (en) | 2010-09-20 | 2012-03-22 | Sb Limotive Company Ltd. | Method for setting a DC link voltage |
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2012
- 2012-06-08 DE DE102012209648.5A patent/DE102012209648B4/en active Active
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2013
- 2013-05-24 CN CN201380029538.9A patent/CN104349932B/en active Active
- 2013-05-24 WO PCT/EP2013/060746 patent/WO2013182435A2/en active Application Filing
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| US20110234166A1 (en) * | 2010-02-10 | 2011-09-29 | Chin-Chuan Liu | Battery module state detection method |
| WO2011128136A1 (en) * | 2010-04-16 | 2011-10-20 | Sb Limotive Company Ltd. | Battery with variable output voltage |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107091954A (en) * | 2016-02-18 | 2017-08-25 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Method, calibrating installation, battery sensor and the storage medium of calibration measurement resistance |
| CN107091954B (en) * | 2016-02-18 | 2021-11-12 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Method for calibrating a measuring resistor, calibration device, battery sensor and storage medium |
| CN109416391A (en) * | 2016-07-12 | 2019-03-01 | 宝马股份公司 | For determining method, battery module and the device of the internal resistance of battery cell |
| CN109416391B (en) * | 2016-07-12 | 2024-05-10 | 宝马股份公司 | Method for determining the internal resistance of a battery cell, battery module and device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013182435A3 (en) | 2014-04-24 |
| DE102012209648B4 (en) | 2024-02-01 |
| WO2013182435A2 (en) | 2013-12-12 |
| DE102012209648A1 (en) | 2013-12-12 |
| CN104349932B (en) | 2016-12-14 |
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