CN107107768A - For the method for the battery cell of multiple different configurations of switching battery group and the battery pack with the battery cell for possessing multiple different configurations battery pack system - Google Patents
For the method for the battery cell of multiple different configurations of switching battery group and the battery pack with the battery cell for possessing multiple different configurations battery pack system Download PDFInfo
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- CN107107768A CN107107768A CN201580053778.1A CN201580053778A CN107107768A CN 107107768 A CN107107768 A CN 107107768A CN 201580053778 A CN201580053778 A CN 201580053778A CN 107107768 A CN107107768 A CN 107107768A
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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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/12—Recording operating variables ; Monitoring of operating variables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
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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
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/64—Constructional details of batteries specially adapted for electric vehicles
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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
- B60L58/19—Switching between serial connection and parallel connection of battery modules
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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
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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
- B60L58/22—Balancing the charge of battery modules
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/005—Detection of 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
- 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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- 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
- B60L2260/00—Operating Modes
- B60L2260/40—Control modes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- 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)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
It is used for switching battery group the present invention relates to one kind（111）Multiple battery cells（24、27）Method, plurality of battery cell（24、27）It can be one another in series, battery pack is electrically coupled to corresponding first probability P 1i respectively（111）It is upper and respectively with corresponding second probability P 2i from battery pack（111）Upper electrically decoupling.Here, multiple battery cells（24、27）Constitute a Battery pack Battery pack（24、27）, described group includes the battery cell of mutually the same construction（24）The first subgroup（114）And/or mutually the same construction and relative to the first subgroup（114）Battery cell（24）The battery cell of different configuration（27）The second subgroup（117）.In addition, for the first subgroup（114）Each battery cell（24）, using quality factor G1i as with flowing through battery pack（111）The current value related first function of battery pack current calculate, and/or for the second subgroup（117）Each battery cell（27）, quality factor G2i is calculated as related and different with the first function second function of the current value from battery pack current.For the first subgroup（114）Each battery cell（24）And/or for the second subgroup（117）Each battery cell（27）, corresponding first probability P 1i and corresponding second probability P 2i are also respectively according to respective battery Battery pack（24、27）The quality factor calculated（G1i、G2i）To determine.
Description
Technical field
The present invention relates to a kind of method of multiple battery cells for switching battery group.The invention further relates to one kind tool
There is the battery pack system for the battery pack for possessing multiple battery cells, wherein distributing one respectively in electricity to each battery cell
The battery cell monitoring module of Chi Zuzhong arrangements.
Background technology
Figure 1 illustrates by battery pack system 10 known in the art, the battery pack system includes having multiple batteries
Battery pack unit（Intelligent battery unit, SCU）20 battery pack 11, the battery cell has a battery pack respectively
Battery 21 and the battery cell monitoring module for distributing to battery cell 21（Battery cell electronic module or battery cell
Electronic installation）22.For the diagram in simplification figure 1, only two battery cells are drawn and are equipped with accompanying drawing
Mark 20.Battery cell monitoring module 22 can realize the independent control of each battery cell 21.In order to produce battery pack
11 output voltage（Total output voltage）U, battery cell monitoring module 22 is connected with each other with series circuit by linkage section, should
Output voltage U also serves as the output voltage U of battery pack system 10.Battery pack system 10 also includes being used to control battery pack system 10
Central control unit（Central Control Unit, CCU）30.
In order to produce the output voltage adjusted of battery pack 11（Total output voltage）U, each battery cell 21 is distinguished
Connected by the battery cell monitoring module 22 distributed, i.e., battery cell 21 is respectively with taking out relative to output voltage U
The positive or negative polarity of head is incorporated into series circuit.In order to produce the output voltage adjusted of battery pack 11（Total output voltage）
U, each battery cell 21 is also cut off by the battery cell monitoring module 22 distributed respectively, that is, the battery to be cut off
Battery pack 21 is separated from series circuit in the following manner, i.e., the connection terminal of the battery cell 21 each to be cut off by
The battery cell monitoring module 22 distributed is electrically connected, and thus bridges corresponding battery cell 21.Therefore, series connection is accessed to
The battery cell 21 of circuit can be respectively at and be referred to as the connection status of " forward direction access " or other be referred to as that " negative sense connects
Enter " connection status.In addition, the battery cell 21 separated from series circuit is in the connection status for being referred to as " bridging ".
In such battery pack system 10（Intelligent battery battery pack system）In, dispersedly supervised in corresponding battery cell
Control the decision for the change that the connection status on battery cell 21 is carried out in module 22.Actual regulatory function is controlled by center
Unit 30 processed realizes that the central control unit is configured to spend the central adjuster realized less.
Here, in battery pack system 10, the first control is carried out by being configured to the communication section 31 of one-way communication interface
Parameter P1's and the second controling parameter P2 is predetermined, is uniquely wrapped only one by central control unit 30 by the communication section
The message for including current controling parameter P1 and P2 is sent to all battery cell monitoring modules 22.All battery cells monitor mould
Block 22 receives identical message and independently or the battery cell 21 distributed respectively is accessed into series circuit or passed through
The corresponding switch being respectively present in battery cell monitoring module 22（It is not shown）To bridge the battery pack distributed respectively electricity
Pond 21.According to control algolithm, two control ginsengs of the numeric form that central control unit 30 predetermined two is located between 0 and 1
P1, P2 are measured, the controling parameter is by central control unit（CCU）30 are transferred to battery cell monitoring module by communication section 31
（SCU）22 and similarly received by all battery cell monitoring modules 22.It is applicable herein：0≤P1≤1 and 0≤P2≤
1。
Implement equally distributed random process in each battery cell monitoring module 22, the random process explains P1
For be referred to as probability of successful service comple the first probability and by P2 be construed to referred to as cut off probability the second probability, connected with the first probability
Each cut-off battery cell 21, the battery cell 21 being each switched on is cut off with the second probability.Center control is single
30 tracing control parameter P1 and P2 of member so that battery pack system U current output voltage U and desired output voltage Us it
Between there is difference as small as possible（Regulation is poor）.
In addition to producing the output voltage U adjusted of battery pack 11, it can carry out being held by central control unit 30
The simple extension of capable control algolithm so that effective battery cell functional status balance（Battery cell is balanced）By for
Battery cell 21 is realized using the validity period of weighting simultaneously.In this regard, each battery cell monitoring module 22 is according to quality
Factor scaling related controling parameter P1 or P2, i.e. identical reception and according to the connection shape of the battery cell 21 distributed
State carrys out the controling parameter P1 or P2 of selection, and the quality factor are according to the charged state of the battery cell 21 distributed（SOC）With
Ageing state（SOH）To calculate.As a result, the cut-off battery cell 21 with higher figure of merit is than with relatively low（Compared with
It is small）The battery cell 21 of quality factor is connected with higher probability.On the contrary, the battery cell with relatively low quality factor
21 are cut off than the battery cell 21 with higher figure of merit with bigger probability.The time averagely on, with relatively low product
The battery cell 21 of prime factor is less frequently to be loaded, thus effective between the battery cell 21 of execution battery pack 11
Battery cell functional status is balanced, wherein charged state difference between balancing the different battery cells 21 of battery pack 11 and
Ageing state is poor.
A kind of hybrid battery with high-power battery group and high-energy battery group as known to the A2 of document WO 03/088375
Group, wherein high-power battery group and high-energy battery group are connected in parallel to each other.Here, high-power battery group and high-energy battery group can be mixed
Close and be switched on and cut off respectively in battery power discharge.For example high-energy battery group can have the electric current with high current value
In the case of be cut off and high-power battery group can exist with low current value electric current in the case of be cut off.
The content of the invention
A kind of method that multiple battery cells for switching battery group are proposed according to the present invention, plurality of battery pack
Battery can be one another in series, and be electrically coupled to respectively with corresponding first probability in battery pack and respectively with corresponding second probability
The electrically decoupling from battery pack.Here, multiple battery cells constitute a Battery pack Battery pack, the group includes mutually the same construction
First subgroup of battery cell and/or mutually the same construction and the battery cell different configuration relative to the first subgroup
Battery cell the second subgroup.In addition, for each battery cell of the first subgroup, using quality factor as with flowing through
The current value of the battery pack current of battery pack related first function is calculated, and/or for each battery pack of the second subgroup
Battery, quality factor are counted as related and different with the first function second function of the current value from battery pack current
Calculate.Here, each battery cell for the first subgroup and/or each battery cell for the second subgroup, accordingly
First probability and corresponding second probability are determined according to the quality factor calculated of respective battery Battery pack respectively.
In addition, a kind of battery pack system for the battery pack for having and possessing multiple battery cells is provided according to the present invention, its
In distribute the battery cell arranged in a battery pack monitoring module respectively and plurality of to each battery cell
Battery cell can be one another in series by the battery cell monitoring module distributed.Here, each battery cell monitoring
Module is configured to, and the battery cell distributed is electrically coupled in battery pack and with corresponding with corresponding first probability
The second probability from battery pack electrically decoupling.In addition, multiple battery cells constitute a Battery pack Battery pack, the group is included each other
First subgroup of the battery cell of same configuration and/or mutually the same construction and the battery pack electricity relative to the first subgroup
Second subgroup of the battery cell of pond different configuration.Here, distributing to each battery of the battery cell in the first subgroup
Battery pack monitoring module is configured to, for the battery cell distributed, using quality factor as with flowing through battery pack
The current value of battery pack current related first function is calculated, and/or distributes to the every of battery cell in the second subgroup
Individual battery cell monitoring module is configured to, for the battery cell distributed, using quality factor as with battery pack
The current value of electric current it is related and the second function different from first function calculate.In addition, distributing in the first subgroup
Each battery cell monitoring module of battery cell and/or each battery for distributing to the battery cell in the second subgroup
Battery pack monitoring module is configured to, for the battery cell distributed, by corresponding first probability and corresponding second
Probability is determined according to the quality factor calculated of the battery cell distributed respectively.
Dependent claims show the preferred improvement project of the present invention.
The present invention it is a kind of very preferred embodiment in, each battery cell of the first subgroup is energy cell
And each battery cell of the second subgroup is capacity cell.Here, can be stored as maximum in each energy cell
Business between the quality of first energy fluence and corresponding energy cell is more than as in each power come the first energy density calculated
Business in battery between the quality of maximum the second energy fluence that can be stored and corresponding power battery is come the second energy density for calculating.
Preferably, in normal operation, each capacity cell can be come than each energy cell with the electric current with higher current value
Electric discharge and/or charging.Further preferably, in order to calculate used in the quality factor of each battery cell in the first subgroup
First function is the function of the monotonic decreasing of the current value of battery pack current.Further preferably, in order to calculate in the second subgroup
Second function used in the quality factor of each battery cell is the function of the monotone increasing of the current value of battery pack current.
In the present invention, quality is defined for each battery cell of the battery pack of the battery pack system according to the present invention
Factor, the current value of the battery pack current of the quality factor partially or completely to flowing through battery pack is related.Each battery pack electricity
The quality factor of such definition in pond also can also be related to the characteristic of involved battery cell.Preferably, if currently
The current value of battery pack current be small, then energy cell obtains the high quality factor according to the present invention, and if current
Battery pack current current value be it is big, then energy cell obtain it is small according to the present invention quality factor.Further preferably,
The quality factor according to the present invention of capacity cell show just the opposite.
Preferably, in order to calculate first function used in the quality factor of each battery cell in the first subgroup this
Sample it is related to the current value of battery pack current, if that is, the current value of battery pack current minimum current limiting value and maximum electricity
Change between limiting value is flowed, then the quality factor of each battery cell in the first subgroup are also in maximum first quality factor pole
Change between limit and the minimum first quality factor limit.Further preferably, it is electric in order to calculate each battery pack in the second subgroup
Second function used in the quality factor in pond is related to the current value of battery pack current in this wise, if i.e. battery pack current
Current value changes between minimum current limiting value and maximum current limiting value, then each battery cell in the second subgroup
Quality factor also change between the minimum second quality factor limit and the maximum second quality factor limit.Here, minimum first
The quality factor limit is particularly equal to the minimum second quality factor limit and/or the maximum first quality factor limit is particularly equal to
The maximum second quality factor limit.
Preferably, in order to calculate first function used in the quality factor of each battery cell in the first subgroup this
Sample it is related to the current value of battery pack current and in order to calculate the quality factor of each battery cell in the second subgroup
Used second function is related to the current value of battery pack current in this wise, if that is, battery pack current has positioned at minimum electricity
Flow the pre-defined current value between limiting value and maximum current limiting value, then each battery cell in the first subgroup
Quality factor are equal with the quality factor of each battery cell in the second subgroup.
Preferably, in order to calculate first function used in the quality factor of each battery cell in the first subgroup
It is also related at least one other parameter unrelated with the current value of battery pack current.Further preferably, in order to calculate second
Second function used in the quality factor of each battery cell in subgroup is yet related at least one other parameter.
In a kind of highly beneficial embodiment of the present invention, be each battery cell in the first subgroup and/or
The first probability used in each battery cell in the second subgroup be respective battery Battery pack the quality calculated because
The particularly linear function of several monotone increasings.
In another highly beneficial embodiment of the present invention, be each battery cell in the first subgroup and/
Or the second probability used in each battery cell in the second subgroup is the quality calculated of respective battery Battery pack
The particularly linear function of the monotonic decreasing of factor.
If it means that the battery pack current with small current value flows through battery pack, the battery pack of the first subgroup
Battery, i.e. energy cell preferably more strongly discharge or charged.If it also means that the battery pack with big current value
Electric current flowing, the then battery cell of the second subgroup, i.e. capacity cell preferably more strongly electric discharge or charging.Therefore, each
Battery cell is used according to its characteristic in optimal working point, i.e., each battery cell is more often put with following electric current
Electricity or charging, the battery cell has been described in detail for the electric current.This, which can be realized, incites somebody to action not only energy cell but also work(
Rate battery is arranged in the same battery group according to the battery pack system of the present invention.Energy cell specific power battery has higher
Energy density（Wh/kg）.Due to the reason, according to the battery pack system of the present invention be wherein provided with not only energy cell but also
The energy density of the battery pack of capacity cell can be significantly improved compared to the battery pack for being wherein only provided with capacity cell.
In the battery pack system that analysis can be used in vehicle, for example, it can specify that：In such battery pack system
The typical load defined for discharge cycle in, the electricity is extracted with the discharge current of the C speed with preferably less than 3C
The lion's share of the energy fluence of the battery pack of pond system system.If battery pack is with C rate discharges or charging, the current value of electric current
Calculated as the product between C speed and the specified charge volume of the battery pack, the battery pack is discharged or charged with the current value.
1C C speed is it is meant that specified charge volume for example with 1Ah and provide 1A electricity with the battery pack of 1C C rate discharges
Flow a small duration.Because energy cell specific power battery has higher energy density（Wh/kg）, so this of energy fluence
The lion's share referred to before can be provided preferably by energy cell, and capacity cell can be preferably provided from the battery
The smaller share of the energy fluence extracted in the battery pack of system system, the smaller share is with the electric discharge electricity with higher C speed
Stream is extracted.Therefore, such battery pack can be improved in the case of with the discharge current for keeping constant maximum C speed
The energy density of the battery pack of system, energy cell and capacity cell are provided with the battery pack simultaneously.
In the form then shown, the energy fluence AE extracted from the battery pack of the battery pack system share is
Illustrated in one row with percentage % and the C speed of corresponding discharge current illustrates in a second column.
| AE（%） | C speed |
| 27% | <1C |
| 24% | 1C to 2C |
| 27% | 2C to 3C |
| 14% | 3C to 4C |
| 5% | 4C to 5C |
| 1% | 5C to 6C |
| 2% | ≥7C |
In the battery pack system according to the present invention, for each battery cell in the first subgroup and/or for the
Each battery cell in two subgroups, is used by the battery cell monitoring module for being respectively allocated to the battery cell
The first probability be preferably with corresponding first factor scale the first controling parameter.In addition, for every in the first subgroup
Individual battery cell and/or for each battery cell in the second subgroup, by being respectively allocated to the battery cell
Second probability used in battery cell monitoring module is preferably the second controling parameter scaled with corresponding second factor.
Preferably, the quality factor of the first controling parameter and/or the second controling parameter respectively with respective battery Battery pack are unrelated, and the
One factor and the second factor are pre-defined according to the quality factor of respective battery Battery pack respectively.
Preferably, central control unit is had according to the battery pack system of the present invention, the central control unit is constructed use
In in order to produce the desired output voltage of battery pack, being all battery cells of the first subgroup and/or be the second subgroup
Each predetermined first controling parameter of all battery cells and each second controling parameter, and by the first controling parameter and
Second controling parameter is delivered to all battery cell monitoring modules for the battery cell distributed in the first subgroup and/or divided
All battery cell monitoring modules of battery cell in the subgroup of dispensing second.Further preferably, the control unit is by structure
Make the current output voltage applied to measurement battery pack and be compared the desired output voltage of itself and battery pack, and
And change the first controling parameter and the second control ginseng when there is the difference between current output voltage and desired output voltage
Amount so that the poor absolute value between current output voltage and desired output voltage is minimized.
Here, measured current output voltage and desired output voltage are preferably not the instantaneous of relevant voltage
Value, but the assembly average of average value or relevant voltage of the relevant voltage on multiple regulating cycles.
Another aspect of the present invention is related to a kind of vehicle having according to battery pack system of the invention.
Brief description of the drawings
Embodiments of the invention are described in detail referring next to accompanying drawing.In the accompanying drawings：
Fig. 1 is by the battery system with the battery pack for possessing multiple battery cells that can be connected known in the art
System,
Fig. 2 is according to the first embodiment of the invention constructed with the battery for possessing multiple battery cells that can be connected
The battery pack system of group, and
Fig. 3 be directed to Fig. 2 in battery pack system battery pack different configuration battery cell shown in quality factor with
With the correlation of the corresponding C speed of current value of the battery pack current for the battery pack for flowing through the battery pack system shown in Fig. 2.
Embodiment
Fig. 2 shows the battery pack system 100 according to the present invention according to the first embodiment of the invention.According to the present invention
Battery pack system 100 and Fig. 1 in show and multiple batteries are differently included by battery pack system known in the art
Battery pack 24,27, the battery cell constitutes a Battery pack Battery pack 24,27, and the group includes the battery of mutually the same construction
First subgroup 114 of Battery pack 24 and/or mutually the same construction and the battery cell 24 relative to the first subgroup 114 not
Second subgroup 117 of syntectonic battery cell 27.Here, the battery cell 24 of the first subgroup 114 is also referred to as energy electricity
The battery cell 27 of pond 24 and the second subgroup 117 is also referred to as capacity cell 27.The area of energy cell 24 and capacity cell 27
It is not that the specific power battery 27 of energy cell 24 has higher energy density（WH/kg）And particularly also reside in capacity cell
27 can be with the current discharge with higher current value and/or charging compared with energy cell 24.
In the battery pack system 100 according to the present invention, also each battery cell 24,27 to battery pack 111 is distinguished
Distribute a battery cell monitoring module 124,127.Here, each battery cell 24,27 herein also with distributing respectively
Corresponding battery cell 125,128 is constituted together to its battery cell monitoring module 124,127.In addition, in root
In battery pack system 100 according to the present invention, each battery cell monitoring module 124,127 is also configured to be distributed
Battery cell 24,27 is connected with corresponding first probability P 1i, that is, is electrically coupled in battery pack 111, and with corresponding second
Probability P 2i is cut off, i.e., from electrically decoupling in battery pack 111.
In addition, being also arranged to according to the battery cell 125,128 of the battery pack system 100 of the present invention so that
If corresponding battery cell 24,27 is switched on, these battery cells are one another in series, that is, the battery cell connected
24th, 27 it can also be incorporated into respectively with positive or negative polarity in series circuit at this.
The difference of battery pack system according to the battery pack system 100 of the present invention with being shown in Fig. 1 is to distribute to battery
The feature of the battery cell monitoring module 124,127 of Battery pack 24,27.According to the battery cell monitoring module of the present invention
124th, 127 it is configured to use by central control unit 30 predetermined controling parameter P1 and P2 with showing in Fig. 1
The different scaling of the battery cell monitoring module of battery pack system.Therefore, according to the battery cell monitoring module of the present invention
124th, 127 be also configured to differently to determine to the battery cell monitoring module of the battery pack system shown in Fig. 1 it is corresponding
The first probability P 1i and corresponding second probability P 2i, wherein connecting distributed battery cell respectively with first probability
24th, 27, distributed battery cell 24,27 is cut off with second probability respectively.Here, i is to be located at 1 and battery pack 111
Multiple battery cells 24,27 quantity n between natural number.
The feature of each battery cell monitoring module 124,127 according to the present invention is then described in detail：
Distribute to the battery cell 24 in the first subgroup 114 each battery cell monitoring module 124 be configured to by
The quality factor G1i of the battery cell 24 distributed is related as the current value of the battery pack current to flowing through battery pack 111
The first function of monotonic decreasing calculate.Preferably, the product for each battery cell 24 in the first subgroup 114 of calculating
Prime factor G1i first function is the function of the monotonic decreasing of the current value of battery pack current.It is suitable in 1≤i of this relational expression≤n1
For i, wherein n1 is the quantity of the battery cell 24 of the first subgroup 114.
The each battery cell monitoring module 127 for distributing to the battery cell 27 in the second subgroup 117 is constructed use
In the current value using the quality factor G2i of the battery cell distributed 27 as the battery pack current with flowing through battery pack 111
The related and second function different from first function is calculated.Preferably, for calculating each electricity in the second subgroup 117
The quality factor G2i of pond Battery pack 27 second function is the function of the monotone increasing of the current value of battery pack current.Close herein
It is that formula n1+1≤i≤n is applied to i.
In addition, in the battery pack system 100 according to the present invention, central control unit 30 is also configured to predetermined the
One controling parameter P1 and the second controling parameter P2 and by its by communication section 31 be delivered to battery cell monitoring module 124,
127。
In addition, each battery cell monitoring module 124,127 according to the present invention is configured to, for what is distributed
Battery cell 24,27, is used as corresponding first probability by the first controling parameter P1 scaled using corresponding first factor f1i
P1i and will using the second factor f2i scale the second controling parameter P2 be used as corresponding second probability P 2i.
Preferably, each quilt of battery cell monitoring module 124 of the battery cell 24 in the first subgroup 114 is distributed to
It is configured to, for the battery cell 24 distributed, according to relational expression（1）To determine corresponding first probability P 1i and root
According to relational expression（2）To determine corresponding second probability P 2i：
P1i=f1iP1=G1iP1,1≤i≤n1（1）
P2i=f2i·P2=（1-G1i）P2,1≤i≤n1（2）.
Further preferably, each battery cell monitoring module of the battery cell 27 in the second subgroup 117 is distributed to
127 are configured to, for the battery cell 27 distributed, according to relational expression（3）To determine corresponding first probability P 1i simultaneously
And according to relational expression（4）To determine corresponding second probability P 2i：
P1i=f1iP1=G2iP1, n1+1≤i≤n（3）
P2i=f2i·P2=（1-G2i）P2, n1+1≤i≤n（4）.
In relational expression（1）Extremely（4）In, P1 is the first controling parameter and P2 is the second controling parameter, and f1i is corresponding
First factor of i battery cell 24,27, f2i is the second factor of corresponding i-th of battery cell 24,27, and
G1i or G2i are the quality factor of i-th of battery cell 24,27.
Figure 3 illustrates the quality factor G1i of each battery cell 24 in the first subgroup 114, i.e. battery pack 111
The quality factor G1i of each energy cell 24 with and flow through battery pack 111 battery pack current the corresponding C speed R of current value
Correlation.It can be seen from figure 3 that the quality factor G1i of each energy cell of battery pack 111 is the electricity with flowing through battery pack 111
The function of the corresponding C speed R of current value of pond group electric current monotonic decreasing and therefore current value phase also with battery pack current
Close.Be also shown from Fig. 3, when C speed R changes between minimum C rate limits Rmin and maximum C rate limits Rmax and because
This is also when the current value of battery pack current changes between minimum current limiting value and maximum current limiting value, battery pack 111
Each energy cell 24 quality factor G1i in maximum first quality factor limit G1max and minimum first quality factor pole
Limit change between G1min.
Quality factor G2i, the i.e. battery pack 111 of each battery cell 27 in the second subgroup 117 is also showed that in figure 3
Each capacity cell 27 quality factor G2i with and flow through battery pack 111 battery pack current the corresponding C speed of current value
R correlation.It can be seen from figure 3 that the quality factor G2i of each energy cell 27 of battery pack 111 is with flowing through battery pack 111
The function of the corresponding C speed R of current value of battery pack current monotone increasing and therefore current value also with battery pack current
It is related.Be also shown from Fig. 3, when C speed R changes between minimum C rate limits Rmin and maximum C rate limits Rmax and
Therefore also when the current value of battery pack current changes between minimum current limiting value and maximum current limiting value, battery pack
The quality factor G2i of 111 each capacity cell 27 is in minimum second quality factor limit G2min and maximum second quality factor
Change between limit G2max.
Preferably, minimum first quality factor limit G1min is equal with minimum second quality factor limit G2min.In addition
Preferably, maximum first quality factor limit G1max is equal with maximum second quality factor limit G2max.
It is also shown from Fig. 3, the quality factor G1i of each energy cell 24 of battery pack 111 and each work(of battery pack 111
The quality factor G2i of rate battery 27 is equal, and is located at minimum C rate limits Rmin and maximum C speed pole when C speed R has
When limiting the pre-defined C rate value R0 between Rmax and therefore also it is located at minimum current limiting value when battery pack current has
During pre-defined current value between maximum current limiting value, pre-defined quality factor G0 is drawn.
In addition to the above disclosure of character property, for the further open present invention, hereby addedly with reference to Fig. 2 and
Diagram in 3.
Claims (14)
1. for switching battery group（111）Multiple battery cells（24、27）Method, plurality of battery cell（24、
27）It can be one another in series, battery pack is electrically coupled to corresponding first probability P 1i respectively（111）Above and respectively with corresponding
Second probability P 2i is from battery pack（111）Upper electrically decoupling, it is characterised in that multiple battery cells（24、27）Constitute a Battery pack
Battery pack（24、27）, described group includes the battery cell of mutually the same construction（24）The first subgroup（114）And/or each other
Same configuration and relative to the first subgroup（114）Battery cell（24）The battery cell of different configuration（27）
Two subgroups（117）, wherein for the first subgroup（114）Each battery cell（24）, by quality factor（G1i）As with stream
Through battery pack（111）The current value related first function of battery pack current calculate, and/or for the second subgroup（117）
Each battery cell（27）, by quality factor（G2i）As related to the current value of battery pack current and with first
Function different second function is calculated, and for the first subgroup（114）Each battery cell（24）And/or for
Two subgroups（117）Each battery cell（27）, corresponding first probability P 1i and corresponding second probability P 2i basis respectively
Respective battery Battery pack（24、27）The quality factor calculated（G1i、G2i）To determine.
2. according to the method described in claim 1, wherein the first subgroup（114）Each battery cell（24）It is energy cell
（24）And the second subgroup（117）Each battery cell（27）It is capacity cell（27）, wherein as in each energy electricity
Pond（24）The first energy fluence and corresponding energy cell that middle maximum can be stored（24）Quality between business come the first energy for calculating
Metric density is more than as in each capacity cell（27）The second energy fluence and corresponding power battery that middle maximum can be stored（27）'s
Business between quality is come the second energy density for calculating, and/or wherein in order to calculate the first subgroup（114）In each battery pack
Battery（24）Quality factor（G1i）Used first function is the function of the monotonic decreasing of the current value of battery pack current,
And/or in order to calculate the second subgroup（117）In each battery cell（27）Quality factor used in second function be
The function of the monotone increasing of the current value of battery pack current.
3. method according to claim 1 or 2, wherein in order to calculate the first subgroup（114）In each battery cell
（24）Quality factor（G1i）Used first function is related to the current value of battery pack current in this wise, if i.e. battery
The current value of group electric current changes between minimum current limiting value and maximum current limiting value, then the first subgroup（114）In it is every
Individual battery cell（24）Quality factor（G1i）Also in the maximum first quality factor limit（G1max）With minimum first quality
The factor limit（G1min）Between change, and/or in order to calculate the second subgroup（117）In each battery cell（27）Product
Prime factor（G2i）Used second function is related to the current value of battery pack current in this wise, if i.e. battery pack current
Current value changes between minimum current limiting value and maximum current limiting value, then the second subgroup（117）In each battery pack
Battery（27）Quality factor（G2i）Also in the minimum second quality factor limit（G2min）With the maximum second quality factor limit
（G2max）Between change, wherein the minimum first quality factor limit（G1min）The particularly equal to minimum second quality factor limit
（G2min）And/or the maximum first quality factor limit（G1max）The particularly equal to maximum second quality factor limit（G2max）.
4. the method according to one of the claims, wherein in order to calculate the first subgroup（114）In each battery pack
Battery（24）Quality factor（G1i）Used first function it is related to the current value of battery pack current in this wise and in order to
Calculate the second subgroup（117）In each battery cell（27）Quality factor（G2i）Used second function is in this wise
It is related to the current value of battery pack current, if that is, battery pack current has positioned at minimum current limiting value and the maximum current limit
Pre-defined current value between value, then the first subgroup（114）In each battery cell（24）Quality factor（G1i）
With the second subgroup（117）In each battery cell（27）Quality factor（G2i）It is equal.
5. the method according to one of the claims, wherein in order to calculate the first subgroup（114）In each battery pack
Battery（24）Quality factor（G1i）The used first function electric current with battery pack current other yet with least one
The unrelated parameter of value is related, and/or in order to calculate the second subgroup（117）In each battery cell（27）Quality factor
（G2i）Used second function is yet related at least one other parameter.
6. the method according to one of the claims, wherein being the first subgroup（114）In each battery cell
（24）And/or be the second subgroup（117）In each battery cell（27）Used first probability P 1i is respective battery group
Battery（24、27）The quality factor calculated（G1i、G2i）Monotone increasing particularly linear function, and/or be the
One subgroup（114）In each battery cell（24）And/or be the second subgroup（117）In each battery cell（27）Institute
The the second probability P 2i used is respective battery Battery pack（24、27）The quality factor calculated（G1i、G2i）Monotonic decreasing
Particularly linear function.
7. have and possess multiple battery cells（24、27）Battery pack（111）Battery pack system（100）, wherein to each
Battery cell（24、27）One is distributed respectively in battery pack（111）The battery cell monitoring module of middle arrangement（124、
127）, and plurality of battery cell（24、27）Can be by the battery cell monitoring module distributed（124、127）
It is one another in series, and each battery cell monitoring module（124、127）It is configured to, by the battery cell distributed
（24、27）Battery pack is electrically coupled to corresponding first probability P 1i（111）It is upper and with corresponding second probability P 2i from battery
Group（111）Upper electrically decoupling, it is characterised in that the multiple battery cell（24、27）Constitute a Battery pack Battery pack（24、
27）, described group includes the battery cell of multiple mutually the same constructions（24）The first subgroup（114）And/or multiple phases each other
It is syntectonic and relative to the first subgroup（114）Battery cell（24）The battery cell of different configuration（27）Second
Subgroup（117）, wherein distributing to the first subgroup（114）In battery cell（24）Each battery cell monitoring module
（114）It is configured to, for the battery cell distributed（24）, by quality factor（G1i）As with flowing through battery pack
The current value of battery pack current related first function is calculated, and/or distributes to the second subgroup（117）In battery cell
（27）Each battery cell monitoring module（127）It is configured to, for the battery cell distributed（24、27）, will
Quality factor（G2i）Counted as related and different with the first function second function of the current value from battery pack current
Calculate, wherein distributing to the first subgroup（114）In battery cell（24）Each battery cell monitoring module（124）With/
Or distribute to the second subgroup（117）In battery cell（27）Each battery cell monitoring module（127）It is constructed use
In for the battery cell distributed（24、27）, corresponding first probability P 1i and corresponding second probability P 2i is distinguished into root
According to the battery cell distributed（24、27）The quality factor calculated（G1i、G2i）To determine.
8. battery pack system according to claim 7（100）, wherein the first subgroup（114）Each battery cell
（24）It is energy cell（24）And the second subgroup（117）Each battery cell（27）It is capacity cell（27）, wherein making
For maximum the first energy fluence and corresponding energy cell that can be stored in each energy cell（24）Quality between business count
The first energy density calculated is more than as in each capacity cell（27）The second energy fluence and corresponding power that middle maximum can be stored
Battery（27）Quality between business come the second energy density for calculating, and/or wherein in order to calculate the first subgroup（114）In
Each battery cell（24）Quality factor（G1i）Used first function be the current value of battery pack current it is dull under
The function of drop, and/or in order to calculate the second subgroup（117）In each battery cell（27）Quality factor（G2i）Made
Second function is the function of the monotone increasing of the current value of battery pack current.
9. the battery pack system according to claim 7 or 8（100）, wherein in order to calculate the first subgroup（114）In it is each
Battery cell（24）Quality factor（G1i）And by distributing to the battery cell monitoring module of the battery cell
（124）Used first function is related to the current value of battery pack current in this wise, if the i.e. current value of battery pack current
Change between minimum current limiting value and maximum current limiting value, then the first subgroup（114）In each battery cell
（24）Quality factor（G1i）Also in the maximum first quality factor limit（G1max）With the minimum first quality factor limit
（G1min）Between change, and/or in order to calculate the second subgroup（117）In each battery cell（27）Quality factor
（G2i）And by distributing to the battery cell monitoring module of the battery cell（127）Used second function is in this wise
It is related to the current value of battery pack current, if that is, the current value of battery pack current is in minimum current limiting value and maximum current pole
Change between limit value, then the second subgroup（117）In each battery cell（27）Quality factor（G2i）Also in minimum second
The quality factor limit（G2min）With the maximum second quality factor limit（G2max）Between change, wherein minimum first quality factor
The limit（G1min）The particularly equal to minimum second quality factor limit（G2min）And/or the maximum first quality factor limit
（G1max）The particularly equal to maximum second quality factor limit（G2max）.
10. the battery pack system according to one of claim 7 to 9（100）, wherein in order to calculate the first subgroup（114）In
Each battery cell（24）Quality factor（G1i）And mould is monitored by the battery cell for distributing to the battery cell
Block（124）Used first function is related to the current value of battery pack current in this wise and in order to calculate the second subgroup
（117）In each battery cell（27）Quality factor（G2i）And by distributing to the battery pack electricity of the battery cell
Cell monitoring module（127）Used second function is related to the current value of battery pack current in this wise, if i.e. battery pack electricity
Stream has the pre-defined current value being located between minimum current limiting value and maximum current limiting value, then the first subgroup
（114）In each battery cell（24）Quality factor（G1i）With the second subgroup（117）In each battery cell
（27）Quality factor（G2i）It is equal.
11. the battery pack system according to one of claim 7 to 10（100）, wherein in order to calculate the first subgroup（114）In
Each battery cell（24）Quality factor（G1i）And mould is monitored by the battery cell for distributing to the battery cell
Block（124）Used first function yet with the current value of the battery pack current unrelated parameter phase other with least one
Close, and/or in order to calculate the second subgroup（117）In each battery cell（27）Quality factor（G2i）And by distributing to
The battery cell monitoring module of the battery cell（127）The used second function parameter other also with least one
It is related.
12. the battery pack system according to one of claim 7 to 11（100）, wherein being the first subgroup（114）In it is each
Battery cell（24）And/or be the second subgroup（117）In each battery cell（27）And by being respectively allocated to the electricity
The battery cell monitoring module of pond Battery pack（124、127）Used first probability P 1i is respective battery Battery pack（24、
27）The quality factor calculated（G1i、G2i）Monotone increasing particularly linear function, and/or be the first subgroup
（114）In each battery cell（24）And/or be the second subgroup（117）In each battery cell（27）And by respectively
Distribute to the battery cell monitoring module of the battery cell（124、127）Used second probability P 2i is corresponding electricity
Pond Battery pack（24、27）The quality factor calculated（G1i、G2i）Monotonic decreasing particularly linear function.
13. the battery pack system according to one of claim 7 to 12（100）, wherein being the first subgroup（114）In it is each
Battery cell（24）And/or be the second subgroup（117）In each battery cell（27）And by being respectively allocated to the electricity
The battery cell monitoring module of pond Battery pack（124、127）Used first probability P 1i is to utilize corresponding first factor
First controling parameter P1 of f1i scalings, and be the first subgroup（114）In each battery cell（24）And/or be second
Subgroup（117）In each battery cell（27）And mould is monitored by the battery cell for being respectively allocated to the battery cell
Block（124、127）Used first probability P 2i is the second controling parameter P2 scaled using corresponding second factor f2i, its
In the first controling parameter P1 and/or the second controling parameter P2 respectively with respective battery Battery pack（24、27）Quality factor（G1i、
G2i）It is unrelated, and the first factor f1i and the second factor f2i are respectively according to respective battery Battery pack（24、27）Quality factor
（G1i、G2i）To pre-define.
14. battery pack system according to claim 13（100）, with central control unit（30）, the center control
Unit is configured to, in order to produce battery pack（100）Desired output voltage Us, be the first subgroup（114）It is all
Battery cell（24）And/or be the second subgroup（117）All battery cells（27）Each predetermined first controling parameter
P1 and each second controling parameter P2, and the first controling parameter P1 and the second controling parameter P2 are delivered to distribute to the first son
Group（114）In battery cell（24）All battery cell monitoring modules（124）And/or distribute to the second subgroup
（117）In battery cell（27）All battery cell monitoring modules（127）, and preferably measure battery pack
（111）Current output voltage（U）And by itself and battery pack（111）Desired output voltage Us be compared, and
There is current output voltage（U）Change the controls of the first controling parameter P1 and second during difference between desired output voltage Us
Parameter P2 processed so that current output voltage（U）Poor absolute value between desired output voltage Us is minimized.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014220098.9A DE102014220098A1 (en) | 2014-10-02 | 2014-10-02 | A method of switching a plurality of differently shaped battery cells of a battery and battery system with a battery having a plurality of differently shaped battery cells |
| DE102014220098.9 | 2014-10-02 | ||
| PCT/EP2015/070231 WO2016050446A1 (en) | 2014-10-02 | 2015-09-04 | Method for connecting multiple differently designed battery cells of a battery, and battery system comprising a battery with multiple differently designed battery cells |
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| Publication Number | Publication Date |
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| CN107107768A true CN107107768A (en) | 2017-08-29 |
| CN107107768B CN107107768B (en) | 2020-04-03 |
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| CN201580053778.1A Active CN107107768B (en) | 2014-10-02 | 2015-09-04 | Method for switching a plurality of differently configured battery cells of a battery pack and battery pack system having a battery pack with a plurality of differently configured battery cells |
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| Country | Link |
|---|---|
| KR (1) | KR20170067730A (en) |
| CN (1) | CN107107768B (en) |
| DE (1) | DE102014220098A1 (en) |
| WO (1) | WO2016050446A1 (en) |
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| 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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| DE102016222126A1 (en) * | 2016-11-10 | 2018-05-17 | Robert Bosch Gmbh | Method for operating an electrical energy storage system and corresponding machine-readable storage medium, electronic control unit and electrical energy storage system |
| WO2018107065A1 (en) | 2016-12-11 | 2018-06-14 | Sandeep Agarwal | Smart energy storage system |
| CN106655414A (en) * | 2017-03-13 | 2017-05-10 | 四川力垦锂动力科技有限公司 | Lithium ion storage battery with high capacity and instant high-rate discharge performance |
| CN107120717A (en) * | 2017-05-09 | 2017-09-01 | 四川力垦锂动力科技有限公司 | Small-sized heating installation for Home Heating |
| JP2023135763A (en) * | 2022-03-16 | 2023-09-29 | トヨタ自動車株式会社 | battery management system |
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| US20140167515A1 (en) * | 2011-06-09 | 2014-06-19 | Robert Bosch Gmbh | Energy storage device, system with energy storage device and method for generating a supply voltage of an enegry storage device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
|---|---|
| CN107107768B (en) | 2020-04-03 |
| KR20170067730A (en) | 2017-06-16 |
| WO2016050446A1 (en) | 2016-04-07 |
| DE102014220098A1 (en) | 2016-04-07 |
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