CN108666638A - A kind of battery module and its Energy Management System and method - Google Patents
A kind of battery module and its Energy Management System and method Download PDFInfo
- Publication number
- CN108666638A CN108666638A CN201810460323.7A CN201810460323A CN108666638A CN 108666638 A CN108666638 A CN 108666638A CN 201810460323 A CN201810460323 A CN 201810460323A CN 108666638 A CN108666638 A CN 108666638A
- Authority
- CN
- China
- Prior art keywords
- battery
- sub
- battery pack
- battery module
- energy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
Abstract
The present invention relates to a kind of battery module and its Energy Management System and method, battery module includes mainly several sub- battery packs (subpack), one sub- battery pack is made of several battery modules (module), one battery module is made of multiple batteries (cell), and every sub- battery pack is the absolute construction that can individually dismantle.The invention has the advantages that：The present invention designs in battery module can sub- battery pack that is independently-powered and can unloading replacement respectively, for the load energy demand corresponding to battery module, to determine to be mounted in the quantity of the sub- battery pack in battery module, with in the case where being capable of providing enough electric power, the battery module can be made to reach light-weighted purpose, it is convenient to use and repair, more efficient, more energy efficient environmental protection.
Description
Technical field
The present invention relates to the battery technology field of electric vehicle, especially a kind of battery module and its Energy Management System with
Method.
Background technology
Environmental consciousness plants the popular feelings deeply, and countries in the world are also continuing effort to towards the direction of carbon reduction, auto industry
It is to spare no effort towards this direction effort, is dedicated to researching and developing electric vehicle to effectively achieve the purpose of carbon reduction.Electric vehicle with
The electric power of battery is supplied to electrodynamic induction motor, by electric energy production rotating excitation field, to make motor drive vehicle.It therefore will not
Generated exhaust gas when having a gasoline combustion can dramatically improve the air quality of environment, and reduce carbon dioxide in large quantities
Discharge.
The Electric Design of electric vehicle forms a battery module (module) by multiple batteries (cell) at this stage, then
A battery pack (battery pack) is constituted by multiple battery modules.It is worth noting that, can meet in traveling, long-range distance
Electric vehicle, commonly referred to as global function vehicle (full performance car), the volume of the battery pack of such vehicle is very huge
Greatly, and weight weighs hundreds of kilograms.When the battery power exhausts, it is necessary to entire battery pack is unloaded down replacement, also because of body
The limitation of product and weight issue, causes the inconvenience replaced with.
By some documents it is found that either domestic or external, 90% vehicle is all public less than 100 per daily travel number
In.In other words, it is designed to provide in traveling, the electric power of long-range distance is not often used, i.e., the electricity of above-mentioned full function
If motor-car is only on and off duty, because operating range is short, and the volume of battery pack and weight are fixed again, and can not be according to electronic
The distance of vehicle traveling and be adjusted, bulky battery pack increases the load of traveling to electric vehicle instead in tow, wastes electricity
Many energy of pond group.
Based on the above issues, electric vehicle also develops the style of city vehicle (city car), i.e., by above-mentioned battery pack
The electric power and size reduction of (battery pack), specially to provide short distance distance travel.So design also directly sacrifices vehicle
In, the driveability of long-range distance.
Invention content
The shortcomings that the invention solves the above-mentioned prior arts, provide a kind of more preferable effect, more optimized battery module and
Its Energy Management System and method.
The present invention solves the technical solution of its technical problem use：This battery module includes mainly several height electricity
Pond group (subpack), a sub- battery pack are made of several battery modules (module), and a battery module is by multiple batteries
(cell) it constitutes, every sub- battery pack is the absolute construction that can individually dismantle.
The quantity of the sub- battery pack is determined by the energy requirement of the load corresponding to battery module.
The sub- battery pack is electrically connected in parallel；Battery module is electrically connected in parallel；Battery with
In parallel and concatenated mode is electrically connected；Battery is, for example, 18650 type lithium batteries.
The Energy Management System of this battery module includes mainly battery module described above, battery module
In every sub- battery pack be connected with a battery management system (Battery Management System, BMS), if
Dry battery management system is connected with battery control unit (Battery Control Unit, BCU).
The energy management method of this battery module includes mainly battery module described above, and steps are as follows；
(1) according to energy requirement, the state of charge of every sub- battery pack in battery module is obtained；
(2) the sub- battery pack by state of charge less than electric discharge critical value is closed；
(3) in never pent sub- battery pack, select electric power that can meet a sub- battery pack of the energy requirement, and open
It is battery-powered to open the son.
While the sub- battery pack that state of charge is less than to electric discharge critical value is closed, further comprises providing and unload this
The information of sub- battery pack.
After the completion of the step (3), when the sub- battery pack cannot be satisfied the energy requirement, following step is further included
Suddenly：Never in pent sub- battery pack, the summation after selecting electric power to be added can meet multiple sub- batteries of the energy requirement
Group, and it is a little battery-powered to open this simultaneously.
The quantity of the sub- battery pack can just meet the needs of energy.
The invention has the advantages that：The present invention designs in battery module can be independently-powered and can unload replacement respectively
Sub- battery pack, for the load energy demand corresponding to battery module, to determine to be mounted in the son electricity in battery module
The quantity of pond group, in the case where being capable of providing enough electric power, the battery module can be made to reach light-weighted purpose,
It is convenient to use and repair, more efficient, more energy efficient environmental protection.
Description of the drawings
Fig. 1 is the structural schematic diagram of the battery module of the present invention；
Fig. 2 is the circuit box schematic diagram of the Energy Management System of the battery module of the present invention.
Fig. 3 is the flow chart of the energy management method of the battery module of the present invention
Reference sign：Battery module 10, battery module I 12, battery module II 14, battery module III 16, son electricity
Pond group I 20, sub- battery pack II 22, sub- battery pack III 24, energy relationship system 30, battery management system I 32, battery management system
II 34, battery management system III 36, battery control unit 38, bus 40.
Specific implementation mode
The invention will be further described below in conjunction with the accompanying drawings：
As shown in Figure 1, this battery module, includes mainly several sub- battery packs, sub- battery pack I 20, sub- battery pack
II 22, sub- battery pack III 24 is electrically connected to each other in parallel is constituted, and sub- battery pack I 20 is by several battery modules I
12 are electrically connected to each other in parallel is constituted, and is then by multiple batteries (typically 18650 types inside battery module I 12
Lithium battery) it is electrically connected and is constituted in a manner of in parallel and concatenated, battery is typically 18650 type lithium batteries, sub- battery pack II 22,
Sub- battery pack III 24 is electrically connected to each other institute's structure by several battery modules II 14, battery module III 16 in parallel respectively
At being then to be electrically connected institute's structure in a manner of in parallel and concatenated by multiple batteries inside battery module II 14, battery module III 16
At.Every sub- battery pack is the absolute construction that can individually dismantle.
The present invention can all unload the design of replacement by every sub- battery pack independently-powered and respectively, can be directed to battery pack mould
The energy requirement of load corresponding to block, to determine to be mounted in the quantity of the sub- battery pack in battery module, to carry
In the case of for enough electric power, the battery module can be made to reach lightweight.The energy requirement of the load refers to electric vehicle work
It is dynamic or meet electric power needed for chainage, such as refer to electric vehicle start (high speed, climbing ...) or meet needed for chainage
Electric power.
In the present embodiment, by taking battery module I 12 as an example, there are three types of schemes, as follows：
A battery modular structures I：60P2S indicates that 60 cell parallels are connected as one group, then will two groups of parallel connections identical in this way
Battery is connected in series with to constitute battery module 12；
B battery modular structure II：40P2S indicates that 40 cell parallels are connected as one group, then will identical in this way two groups simultaneously
Connection battery is connected in series with to constitute battery module 12；
C battery modular structures III：20P2S indicates that 20 cell parallels are connected as one group, then will identical in this way two groups simultaneously
Connection battery is connected in series with to constitute battery module 12.
The sub- battery pack I 20 of battery module 10 of the present invention, sub- battery pack II 22, sub- battery pack III 24 is designed to can
Independently-powered, and can remove and be replaced from battery module 10 respectively.Design can be directed to battery module 10 in this way
Corresponding load energy requirement, to determine the quantity for the sub- battery pack being mounted on battery module 10.
The corresponding load of above-mentioned battery module 10 refers to electric vehicle start (high speed, climbing ...) or meets chainage
Required electric power.Assuming that electric vehicle needs in travelling, long range, it can be by three groups of sub- battery packs I 20, sub- battery pack II 22, son electricity
Pond group III 24 is all equipped in battery module 10 and (claims fully loaded), and when electric vehicle only needs to travel short distance, can will
One group of sub- battery pack I 20 or two groups of sub- battery packs I 20, sub- battery pack II 22, which are equipped in battery module 10, (claims underloading
Or semi-load) energy requirement can be met.
The quantity of battery, battery module and sub- battery pack that the present embodiment is previously mentioned only as illustrating to use, is not limited to
The application range of the present invention depends entirely on the energy demand of corresponding load.
As shown in Fig. 2, the Energy Management System of this battery module, the main battery pack including described in above-described embodiment
Module 10, every sub- battery pack in battery module 10, sub- battery pack I 20, sub- battery pack II 22, sub- battery pack III 24 with
One battery management system, battery management system I 32, battery management system II 34, battery management system III 36 are connected, several
A battery management system is connected with battery control unit 38, battery control unit 38, control unit for vehicle and motor control list
Member is connected by bus 40 with power assisted steering controller and man-machine interface.
Equipped with sub- battery pack I 20, sub- battery pack II 22, sub- battery pack III 24 in battery module 10.Battery management system
Unite I 32, battery management system II 34, battery management system III 36 monitor respectively sub- battery pack I 20, sub- battery pack II 22, son electricity
The state of charge (State Of Charge, SOC) of pond group III 24, and according to the selected battery management system I of state of charge notice
32, battery management system II 34, battery management system III 36, with control corresponding sub- battery pack I 20, sub- battery pack II 22,
The power supply of sub- battery pack III 24.Specifically, state of charge shows how many charge can be transmitted, with the hundred of the rated power of battery
Ratio is divided to indicate.In addition, battery management system I 32, battery management system II 34, battery management system III 36 can also monitor respectively
Sub- battery pack I 20, sub- battery pack II 22, the health status of sub- battery pack III 24 (State Of Health, SOH), health status
Indicate battery can store how many charge, to eliminate the most battery of service life.
For the present embodiment, battery control unit 38 receives battery management system I 32, battery management system under normal conditions
II 34, the state of charge of battery management system III 36 is monitored sub- battery pack I 20, sub- battery pack II 22, sub- battery pack III 24
With health status.When energy requirement of the battery control unit 38 in the reception electric vehicle of bus 40 start (high speed, climbing ...),
Battery management system I 32, cell tube are notified according to the state of charge of sub- battery pack I 20, sub- battery pack II 22, sub- battery pack III 24
Reason system II 34, battery management system III 36, and select to power with which sub- battery pack.
As shown in figure 3, the energy management method of this battery module, the main battery including described in above-described embodiment
Group module 10, steps are as follows；According to energy requirement (such as the case where loads increase such as acceleration, climbing), battery module is obtained
The state of charge of every sub- battery pack in 10；Next, it is determined that whether there is the state of charge of sub- battery pack less than electric discharge critical value
(threshold), if so, then the sub- battery pack by state of charge less than electric discharge critical value is closed；Then, never pent son
In battery pack, select a state of charge that can meet the sub- battery pack of the energy requirement, and it is battery-powered to open the son.So
Afterwards, judge that can the single sub- battery pack persistently meet the energy requirement；When above-mentioned single sub- battery pack cannot be satisfied the energy
When demand, i.e., in never pent sub- battery pack, the summation after selecting electric power to be added can meet the multiple of the energy requirement
Sub- battery pack, and it is a little battery-powered to open this simultaneously.
It is preferential that the above-mentioned multiple sub- battery packs being previously mentioned, which are with the minimum number that can meet the energy requirement,.This battery
The energy management method feature of group module is：Based on the power drain of single sub- battery pack, and when the sub- battery pack can not
When meeting energy requirement, just opens other sub- batteries and give assistance.
In addition, while executing the above-mentioned sub- battery pack closing that state of charge is less than to electric discharge critical value, may also comprise
The step of information of the sub- battery pack is unloaded in offer so that can remind driver that battery station is needed to replace son according to the information
Battery pack.
The present invention, can be according to the energy need needed for the distance or start that electric vehicle travels for applying in electric automobiles
It asks, the sub- battery pack of different number is carried in battery module.To meet global function vehicle (full performance
Car long-range demand), you can all sub- battery packs are fully loaded in battery module；If conversely, only to meet city vehicle
Short distance demand, you can by part sub- battery pack semi-load (or underloading) in battery module, to reduce the weight of battery module,
And reduce the load of electric vehicle traveling.The present invention can meet electric vehicle in addition to the basic performance demand that can meet electric vehicle
Endurance.
Although the present invention describes as above with reference to preferred embodiment and illustrative attached drawing, it is not intended to restrict the invention.
In addition to the implementation, the present invention can also have other embodiment.Person skilled in the art person is to its structure and concrete example
Various modifications, omission and the variation that content is done, all technical solutions formed using equivalent substitution or equivalent transformation should all include
Within protection scope of the present invention.
Claims (8)
1. a kind of battery module includes mainly several sub- battery packs, it is characterized in that：One sub- battery pack is by several batteries
Module forms, and a battery module is made of multiple batteries, and every sub- battery pack is the absolute construction that can individually dismantle.
2. battery module according to claim 1, it is characterized in that：The quantity of the sub- battery pack is by battery module institute
The energy requirement of corresponding load is determined.
3. battery module according to claim 1, it is characterized in that：The sub- battery pack electrically connects in parallel
It connects；Battery module is electrically connected in parallel；Battery is electrically connected in a manner of in parallel and concatenated；Battery is 18650 types
Lithium battery.
4. a kind of Energy Management System of battery module includes mainly the battery pack mould described in above-mentioned any one claim
Block (10), it is characterized in that：Every sub- battery pack in battery module (10) is connected with a battery management system, several
A battery management system is connected with battery control unit (38).
5. a kind of energy management method of battery module includes mainly the battery pack mould described in above-mentioned any one claim
Block (10), it is characterized in that：Steps are as follows；
(1) according to energy requirement, the state of charge of every sub- battery pack in battery module (10) is obtained；
(2) the sub- battery pack by state of charge less than electric discharge critical value is closed；
(3) in never pent sub- battery pack, select electric power that can meet a sub- battery pack of the energy requirement, and opening should
Son is battery-powered.
6. the energy management method of battery module according to claim 5, it is characterized in that：It is described to be less than state of charge
While the sub- battery pack for critical value of discharging is closed, further comprise providing the information for unloading the sub- battery pack.
7. the energy management method of battery module according to claim 5 or 6, it is characterized in that：The step (3) is completed
Afterwards, when the sub- battery pack cannot be satisfied the energy requirement, the following steps are further included：Never pent sub- battery pack
In, the summation after selecting electric power to be added can meet multiple sub- battery packs of the energy requirement, and open this little battery simultaneously
Group power supply.
8. the energy management method of battery module according to claim 7, it is characterized in that：The quantity of the sub- battery pack
Can just meet the needs of energy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810460323.7A CN108666638A (en) | 2018-05-15 | 2018-05-15 | A kind of battery module and its Energy Management System and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810460323.7A CN108666638A (en) | 2018-05-15 | 2018-05-15 | A kind of battery module and its Energy Management System and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108666638A true CN108666638A (en) | 2018-10-16 |
Family
ID=63779555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810460323.7A Withdrawn CN108666638A (en) | 2018-05-15 | 2018-05-15 | A kind of battery module and its Energy Management System and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108666638A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3896819A1 (en) * | 2020-04-16 | 2021-10-20 | Commissariat À L'Énergie Atomique Et Aux Énergies Alternatives | Assembly of storage or electrical energy production cells comprising a circuit for managing cells |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102376988A (en) * | 2010-08-10 | 2012-03-14 | 华创车电技术中心股份有限公司 | Battery pack module, energy management system thereof and energy management method thereof |
| CN104709104A (en) * | 2015-02-09 | 2015-06-17 | 浙江吉利汽车研究院有限公司 | Method and system for rapidly switching battery packs of electric vehicle |
| CN105845992A (en) * | 2016-01-27 | 2016-08-10 | 乐卡汽车智能科技（北京）有限公司 | Detachable charging battery, battery pack, electric automobile and value reckoning system |
-
2018
- 2018-05-15 CN CN201810460323.7A patent/CN108666638A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102376988A (en) * | 2010-08-10 | 2012-03-14 | 华创车电技术中心股份有限公司 | Battery pack module, energy management system thereof and energy management method thereof |
| CN104709104A (en) * | 2015-02-09 | 2015-06-17 | 浙江吉利汽车研究院有限公司 | Method and system for rapidly switching battery packs of electric vehicle |
| CN105845992A (en) * | 2016-01-27 | 2016-08-10 | 乐卡汽车智能科技（北京）有限公司 | Detachable charging battery, battery pack, electric automobile and value reckoning system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3896819A1 (en) * | 2020-04-16 | 2021-10-20 | Commissariat À L'Énergie Atomique Et Aux Énergies Alternatives | Assembly of storage or electrical energy production cells comprising a circuit for managing cells |
| FR3109480A1 (en) * | 2020-04-16 | 2021-10-22 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Assembly of electrical energy storage or production cells comprising a cell management circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Budde-Meiwes et al. | A review of current automotive battery technology and future prospects | |
| CN104853949B (en) | Dual function battery system and method | |
| Xu et al. | Application of Pontryagin's Minimal Principle to the energy management strategy of plugin fuel cell electric vehicles | |
| US8729727B2 (en) | Controller driving apparatus of electric vehicle | |
| CN109130880B (en) | Method for designing a machine | |
| CN102376988B (en) | Battery pack module, energy management system thereof and energy management method thereof | |
| CN102105319A (en) | Vehicle battery systems and methods | |
| CN201189858Y (en) | Urban low cost pure electric public transport system | |
| CN106671802A (en) | Battery apparatus for vehicle | |
| KR100878941B1 (en) | Circuit for battery voltage estimation and cell balancing in electric vehicle and hybrid electric vehicle | |
| CN109050518B (en) | Hybrid power system and cold start method thereof | |
| Ajao et al. | Overview Analysis of Recent Developments on Self-Driving Electric Vehicles | |
| Ekici et al. | Efficiency analysis of various batteries with real-time data on a hybrid electric vehicle | |
| CN111152655B (en) | Multi-shaft hybrid power vehicle energy integrated power supply and distribution system and method | |
| CN108666638A (en) | A kind of battery module and its Energy Management System and method | |
| CN102381172B (en) | Electrical storage device and electric vehicle carrying electrical storage device | |
| CN110271530A (en) | It is operable as the automatic cut-off of the vehicle of generator | |
| Devi et al. | Transport supercapacitors | |
| CN208993661U (en) | The package system and electric car of power battery | |
| CN108099680B (en) | Electric vehicle lithium battery system and electric vehicle | |
| CN102501750B (en) | Power storage device and electric automobile with same | |
| Schofield et al. | AH/sub 2/PEM fuel cell and high energy dense battery hybrid energy source for an urban electric vehicle | |
| CN111605414A (en) | Strategy scheme for grouping power supply and replacement of new energy automobile battery | |
| CN213167843U (en) | Emergency emergency power supply vehicle for hydrogen energy | |
| Ajao et al. | Overview Analysis of Recent Developments on Autonomous Electric Vehicles |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181016 |
|
| WW01 | Invention patent application withdrawn after publication |