CN205790262U - The distributed battery management system of electric automobile - Google Patents
The distributed battery management system of electric automobile Download PDFInfo
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- CN205790262U CN205790262U CN201620535601.7U CN201620535601U CN205790262U CN 205790262 U CN205790262 U CN 205790262U CN 201620535601 U CN201620535601 U CN 201620535601U CN 205790262 U CN205790262 U CN 205790262U
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- battery
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- management system
- acquisition module
- acquisition
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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Abstract
This utility model relates to the distributed battery management system of a kind of electric automobile, including the battery acquisition module of more than a group, one Battery pack acquisition management module and a battery control unit, daisy chaining cascade is used to connect between described battery acquisition module, each battery acquisition module connects one to one with a Battery pack group respectively, highest level battery acquisition management module includes collecting unit and CPU module, the battery pack information of each battery acquisition module collection is processed by described CPU module, described highest level battery acquisition module is connected with rear class battery acquisition module communication.Connection between acquisition module and battery acquisition management module is simple, makes the good reliability of battery management system, security performance high；And the compact conformation of battery management system, simple, it is substantially reduced taking up room of battery management system；Additionally it is substantially reduced components and parts cost.
Description
Technical field
This utility model relates to the technical field of battery management of electric automobile, is specifically related to the distribution of electric automobile
Formula battery management system.
Background technology
Along with electronics, automobile, the development of battery technology, the every R&D-based growth of electric automobile is ripe,
Electric automobile is the most progressively to all trades and professions popularization and application.The battery management system of electric automobile mainly uses concentration
Formula and two kinds of structures of collecting and distributing type.Centralized configuration refers to that all functions of battery management system all concentrate on one
In module, also referred to as all-in-one, this structure is suitable applies in general to that battery capacity is less, the string less low speed of number
Parking lot is closed, such as logistic car, passenger car etc..The most distributed structure of collecting and distributing type, corresponding one of each battery case
Acquisition node, every cover system has a host node, thus forms the network structure of an one master and multiple slaves, i.e.
One battery management system comprises a main control unit BCU module and multiple from control unit B MU module, this knot
The suitable battery capacity that is generally used for of structure is compared with big, string number more speed car occasion.
Existing distributed frame battery management system, each set of cells need to be equipped with a corresponding BMU module, right
The voltage of this set of cells, temperature, equalization information are managed, and the information collected is led to by each BMU module
Cross CAN communication and transmit between main control unit BCU, BMU module separate.Each BMU mould of this structure
Block need to include corresponding CPU module and process the information collected, and will cause CPU and peripheral circuit
Electronic devices and components increasing number, the cost of system increases therewith, on the other hand will reduce battery management system
Reliability.Wherein,
BMM: i.e. battery acquisition module, gathers the information such as the voltage of battery, temperature.
BMU: battery acquisition management module, i.e. from control unit, set battery voltage acquisition, temperature acquisition, equilibrium
The electrical system that the functions such as management, communication, protection are integrated.
BCU: battery control unit, i.e. main control unit, be the important component part of battery management system, mainly
Complete a series of prisons such as current acquisition, the detection of battery stagnation pressure, Insulation monitoring, Control, car load communication
Observing and controlling function.
Set of cells: the intersection of the multiple batteries being combined in different series-parallel modes by more piece monomer battery core,
It is mainly used in the electric automobile using battery as power resources or the different skill such as energy-accumulating power station or UPS device
Art field.
Utility model content
The purpose of this utility model is to overcome shortcomings and deficiencies of the prior art, it is provided that a kind of simple in construction and one-tenth
The distributed battery management system of this cheap electric automobile.
The purpose of this utility model is achieved through the following technical solutions:
The distributed battery management system of electric automobile, including battery acquisition module, a battery of more than one group
Acquisition management module and a battery control unit, described battery acquisition module uses daisy chaining cascade to connect,
Each battery acquisition module with connect one to one with a Battery pack group respectively, described battery acquisition management module
Including highest level battery acquisition module and CPU module, each battery acquisition module is adopted by described CPU module
The battery pack information of collection processes, and described battery acquisition management module is connected with battery control unit communication.
Preferably, described battery acquisition module includes the battery for gathering its corresponding set of cells
The battery collecting unit of group information.
Preferably, described battery pack information includes information of voltage and temperature information.
Preferably, described battery acquisition management module is controlled with battery by CAN communication mode
Unit communication connects.
Preferably, connected by SPI isolation communication modes cascade between described battery acquisition module.
Preferably, described highest level battery acquisition module and CPU module by SPI every
Connect from communication modes.
This utility model includes advantages below and beneficial effect compared to existing technology:
(1) this utility model by using daisy chaining cascade to connect by battery acquisition module, and only battery is adopted
Collection management module is connected with battery control unit communication, thus between battery acquisition module and battery control unit
Connection simple, make the good reliability of battery management system, security performance high；And battery management system
Compact conformation, simple, it is substantially reduced taking up room of battery management system；Additionally it is substantially reduced components and parts
Cost.
(2) battery acquisition module uses daisy chaining cascade to connect, and can increase and decrease battery according to actual needs and adopt
The quantity of collection module, motility is good, installs and easy to maintenance.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below by right
In embodiment or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that below,
Accompanying drawing in description is embodiments more of the present utility model, for those of ordinary skill in the art,
On the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic diagram of the distributed battery management system of the electric automobile in embodiment 1.
Detailed description of the invention
For making the purpose of this utility model embodiment, technical scheme and advantage clearer, below in conjunction with this
Accompanying drawing in utility model embodiment, carries out clear, complete to the technical scheme in this utility model embodiment
Ground describes, it is clear that described embodiment is a part of embodiment of this utility model rather than whole realities
Execute example.Based on the embodiment in this utility model, those of ordinary skill in the art are not making creative labor
The every other embodiment obtained under dynamic premise, broadly falls into the scope of this utility model protection.
Embodiment 1
The present embodiment provides the distributed battery management system of a kind of electric automobile.With reference to Fig. 1, described cell tube
Reason system include more than one group battery acquisition module (BMM), battery acquisition management module (BMU) and
One battery control unit (BCU).Described battery acquisition module uses daisy chaining cascade to connect, Mei Yi electricity
Pond acquisition module with connect one to one with a Battery pack group respectively.Described battery acquisition management module includes
Higher leveled battery acquisition module and CPU module, the electricity that each battery acquisition module is gathered by described CPU module
Pond group information processes, and described battery acquisition management module is connected with battery control unit communication.
Described battery acquisition module (BMM 1, BMM1 2 ..., BMM1 n) include gathering its corresponding battery
The set of cells of group (set of cells 1, set of cells 2 ..., the battery collecting unit of set of cells n) information (electricity
Pond collecting unit 1, battery collecting unit 2 ..., battery collecting unit n), communication unit (communication list
Unit 1, communication unit 2 ..., communication unit n) and peripheral protected location (peripheral protected location 1,
Peripheral protected location 2 ..., peripheral protected location n).It is corresponding that described battery collecting unit is used for gathering it
The battery pack information of set of cells, in the present embodiment, described battery pack information includes information of voltage and temperature letter
Breath.
The battery collecting unit 1 of described battery acquisition module at the highest level by SPI isolation communication modes with
CPU module isolation communication, it is achieved realize on high-tension side while battery collecting unit 1 and CPU module communication
Battery collecting unit 1 is electrically isolated from one another with the CPU module of low-pressure side.Described battery acquisition management module is led to
Cross CAN communication mode to communicate to connect with battery control unit.Described CPU module is by battery collecting unit (electricity
Pond collecting unit 1, battery collecting unit 2 ..., the corresponding battery that battery collecting unit n) collects
Group information of voltage and temperature information process, and will process after information of voltage and temperature information pass through CAN
Communication mode sends to battery control unit.By battery acquisition module uses daisy chaining cascade connect,
Only battery acquisition management module is connected with battery control unit communication, and except highest level battery acquisition module
Other outer battery acquisition modules need not arrange CPU module also without the most direct with battery control unit
Connect, thus the connection between battery acquisition module and battery control unit is simple, makes battery management system
Good reliability, security performance are high；And the compact conformation of battery management system, simple, it is substantially reduced battery
Taking up room of management system；Additionally it is substantially reduced components and parts cost.
In the present embodiment, connected by SPI isolation communication modes cascade between described battery acquisition module.
Generally, during single battery collecting unit gathers set of cells, the quantity of monomer battery core is gone here and there to 14 from 12
Between string, it is also possible to increase and decrease single battery collecting unit gathers the quantity of monomer battery core according to actual needs.Example
As, during the battery management system that if desired 24 go here and there, available one comprises one 12 string battery collecting unit 1
Battery acquisition module 1 and battery acquisition module 2 cascade communication comprising 12 string battery collecting units
Connect；During the battery management system that if desired 48 go here and there, available one comprises one 12 string battery collecting unit 1
Battery acquisition module 1, the battery acquisition module 2, that comprises 12 string battery collecting units comprise
Battery acquisition module 3 and the battery comprising 12 string battery collecting units of 12 string battery collecting units are adopted
Collection module 4 cascade communication connects.As the situation of higher voltage need to be suitable for, the level of battery acquisition module can be increased
Connection quantity, to meet different demands.Battery acquisition module uses daisy chaining cascade to connect, can basis
Being actually needed the quantity of increase and decrease battery acquisition module, motility is good, installs and easy to maintenance.
At this it should be noted that one of ordinary skill in the art will appreciate that and realize in above-described embodiment method
All or part of step can be by program and complete to instruct relevant hardware, described program is permissible
In being stored in a computer read/write memory medium, described storage medium, as ROM/RAM, disk,
CD etc..
Embodiment described above only have expressed embodiment of the present utility model, and it describes more concrete and detailed,
But therefore can not be interpreted as the restriction to this utility model the scope of the claims.It should be pointed out that, for this
For the those of ordinary skill in field, without departing from the concept of the premise utility, it is also possible to if making
Dry deformation and improvement, these broadly fall into protection domain of the present utility model.Therefore, this utility model patent
Protection domain should be as the criterion with claims.
Claims (6)
1. the distributed battery management system of electric automobile, it is characterised in that: include that the battery of more than a group is adopted
Collection module, battery acquisition management module and a battery control unit, described battery acquisition module uses Flos Chrysanthemi
Chain mode cascades connection, each battery acquisition module with connect one to one with a Battery pack group respectively, described
Battery acquisition management module includes highest level battery acquisition module and CPU module, and described CPU module will
The battery pack information of each battery acquisition module collection processes, described battery acquisition management module and battery control
Unit communications processed connects.
The distributed battery management system of electric automobile the most according to claim 1, it is characterised in that:
Described battery acquisition module includes the battery collecting unit of the battery pack information for gathering its corresponding set of cells.
The distributed battery management system of electric automobile the most according to claim 2, it is characterised in that:
Described battery pack information includes information of voltage and temperature information.
4., according to the distributed battery management system of the electric automobile described in Claims 2 or 3, its feature exists
In: described battery acquisition management module is communicated to connect with battery control unit by CAN communication mode.
5., according to the distributed battery management system of the electric automobile described in Claims 2 or 3, its feature exists
In: connected by SPI isolation communication modes cascade between described battery acquisition module.
6., according to the distributed battery management system of the electric automobile described in Claims 2 or 3, its feature exists
In: described highest level battery acquisition module is connected by SPI isolation communication modes with CPU module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620535601.7U CN205790262U (en) | 2016-06-01 | 2016-06-01 | The distributed battery management system of electric automobile |
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| CN201620535601.7U CN205790262U (en) | 2016-06-01 | 2016-06-01 | The distributed battery management system of electric automobile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105914411A (en) * | 2016-06-01 | 2016-08-31 | 惠州市蓝微新源技术有限公司 | Distributed type battery management system for electric vehicle |
| CN113555613A (en) * | 2021-07-15 | 2021-10-26 | 深圳市嘉洋电池有限公司 | Intelligent management system for battery pack clusters |
-
2016
- 2016-06-01 CN CN201620535601.7U patent/CN205790262U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105914411A (en) * | 2016-06-01 | 2016-08-31 | 惠州市蓝微新源技术有限公司 | Distributed type battery management system for electric vehicle |
| CN113555613A (en) * | 2021-07-15 | 2021-10-26 | 深圳市嘉洋电池有限公司 | Intelligent management system for battery pack clusters |
| CN113555613B (en) * | 2021-07-15 | 2022-05-17 | 深圳市嘉洋电池有限公司 | Intelligent management system for battery pack clusters |
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