CN106740191A - Battery management system - Google Patents
Battery management system Download PDFInfo
- Publication number
- CN106740191A CN106740191A CN201611115538.2A CN201611115538A CN106740191A CN 106740191 A CN106740191 A CN 106740191A CN 201611115538 A CN201611115538 A CN 201611115538A CN 106740191 A CN106740191 A CN 106740191A
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- Prior art keywords
- node
- module
- battery
- vice
- management system
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- 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.)
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Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Automation & Control Theory (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention provides a kind of battery management system, including CAN, host module, charging module, insulation monitoring module and multiple balance modules；Host module includes main frame host node and main frame vice-node, and is connected with CAN by main frame host node or main frame vice-node；Charging module includes charging from node and charging from node vice-node, and is connected with CAN from node vice-node from node or charging by charging；Insulating monitoring module includes Insulation monitoring from node and Insulation monitoring from node vice-node, and is connected with CAN from node vice-node from node or Insulation monitoring by Insulation monitoring；Each balance module includes equilibrium from node and equilibrium from node vice-node, and is connected with CAN from node vice-node from node or equilibrium by equilibrium；The battery management system is communicated using CANOPEN agreements.The battery management system security that the present invention is provided is higher.
Description
【Technical field】
The present invention relates to electric vehicle engineering field, more particularly to a kind of battery management system.
【Background technology】
With developing rapidly for New-energy electric vehicle, the endurance of electric automobile is also increasingly stronger, correspondingly, power
The voltage and capacity of battery also more and more higher, based on CAN (Controller Area Network, controller LAN) bus
Distributed network interior joint quantity is increasingly for the BMS (Battery Management System, battery management system) of communication
It is many, and then cause that CAN load occupancy is increasing.
At present, main flow BMS networking modes are based on SAE J1939 agreements, mode of the network from node at a time interval
Field data is uploaded to BMS host nodes.However, with the increase of internal nodes of network quantity, network transmission efficiency is increasingly
It is low, error rate also more and more higher.Additionally, key node, for example, BMS host nodes and Insulation monitoring are total from node deadlock or CAN
Line communication failures, are likely to result in serious property and personal safety accident, and then lead to irremediable loss.
In consideration of it, real be necessary to provide a kind of new battery management system to overcome drawbacks described above.
【The content of the invention】
It is an object of the invention to provide a kind of battery management system, the battery management system is entered using CANOPEN agreements
Row network management, improves the security of battery management system.
To achieve these goals, the present invention provides a kind of battery management system, and it is applied in electric automobile and to institute
The battery bag for stating electric automobile is managed；Wherein, the battery bag includes multiple battery packs, and the battery pack includes some lists
Body battery；The battery management system include for communicate CAN, the host module for estimating the battery bag SOC,
Insulation monitoring mould for carrying out the charging module of management of charging and discharging, insulation values for detecting the battery pack to the battery
Multiple balance modules of block and the electricity for the cell in balanced the multiple battery pack；The host module includes
Main frame host node and main frame vice-node, and by the main frame host node or the main frame vice-node and the CAN
It is attached communication；The charging module include charge from node and charge from node vice-node, and by it is described charge from
Node or the charging are attached with the CAN from node vice-node and communicate；The insulation monitoring module includes exhausted
Edge is detected from node and Insulation monitoring from node vice-node, and by the Insulation monitoring from node or the Insulation monitoring
It is attached with the CAN from node vice-node and is communicated；Described each balance module includes balanced from node and equilibrium
From node vice-node, and connected with the CAN from node vice-node from node or the equilibrium by the equilibrium
Connect letter.
Battery management system provided by the present invention carries out network management using CANOPEN agreements, each Module nodes
The mode of Redundancy Design is taken, but only one of which node leads in each device node in task status, and network simultaneously
Cross heartbeat message mutually to supervise, when a node failure, its corresponding vice-node immediately enters mission mode, and then lifts institute
State the security of battery management system.
【Brief description of the drawings】
Fig. 1 is the structural representation of the battery management system of offer in the embodiment of the present invention.
Fig. 2 is the cut-away view of each module in Fig. 1.
【Specific embodiment】
In order that the purpose of the present invention, technical scheme and Advantageous Effects become apparent from understanding, below in conjunction with accompanying drawing and
Specific embodiment, the present invention will be described in further detail.It should be appreciated that the specific implementation described in this specification
Mode is not intended to limit the present invention just for the sake of explaining the present invention.
Fig. 1 is referred to, it is the structural representation of the battery management system 100 of offer in the embodiment of the present invention.The electricity
The battery bag that pond management system 100 is applied in electric automobile and to the electric automobile is managed.Wherein, the battery bag
Including multiple battery packs, the battery pack includes some cells.Specifically, the battery management system 100 includes CAN
Host module 20 that (Controller Area Network, controller LAN) bus 10 is connected with the CAN, fill
Electric module 30, insulation monitoring module 40, multiple balance module 50 and GPRS (General Packet Radio Service,
General packet radio service) communication module 60.In the present embodiment, the battery management system 100 uses CANOPEN agreements
Network management is carried out to realize the communication between each module.
The host module 20 is used to estimate the SOC (State of Charge, state-of-charge) of the battery bag, i.e. electricity
Pond dump energy, and ensure that SOC is maintained in rational scope, prevents the damage to the battery bag due to overcharge or overdischarge
Wound, so as to forecast the state-of-charge that the battery is protected at any time.Additionally, during the host module 20 is additionally operable to detect the battery pack
Cell function it is whether normal, and the validity to the cell judges in time, if finding the battery bag
In there is cell to fail, when will fail or increase with other cell inconsistencies, then send the first alarm signal with
Point out the cell exception.In the present embodiment, the host module 20 includes main frame host node 21 and main frame pair
Node 22, the host module 20 can be total with the CAN by the main frame host node 21 or the main frame vice-node 22
Line 10 is attached communication, and when detecting the cell and being abnormal, first alarm signal also is passed through into the CAN
Bus 10 is sent to the GPRS communication module 60.
The charging module 30 is used to carry out management of charging and discharging to the battery.Specifically, the charging module 30 includes
Charge from node 31 and charge from node vice-node 32.The charging module 30 can be charged from node 31 by described or
The charging is attached with the CAN 10 from node vice-node 32 and communicates.
The insulation monitoring module 40 is used to detect the insulation values of the battery pack, and when the insulation values of the battery pack are low
The second alarm signal is sent when preset value.In the present embodiment, the insulation monitoring module 40 includes Insulation monitoring from section
, from node vice-node 42, the insulation monitoring module 40 can be by the Insulation monitoring from node 41 for point 41 and Insulation monitoring
Or the Insulation monitoring is attached with the CAN 10 from node vice-node 42 and communicates.Further, when the battery
Group insulation values it is too low when, the insulation monitoring module 40 by second alarm signal by the CAN 10 send to
The GPRS communication module 60.
The electricity of the cell that the multiple balance module 50 is used in balanced the multiple battery pack, and then cause institute
Each cell all reaches balanced consistent state in stating battery pack.In the present embodiment, the multiple balance module 50
Corresponded with the multiple battery pack.Further, described each balance module 50 includes balanced from node 51 and equilibrium
From node vice-node 52, described each balance module 50 is by described balanced from node 51 or described balanced from node vice-node
52 are attached with the CAN 10 and communicate.
The GPRS communication module 60 is used to receive first alarm signal and second alarm signal, and by institute
State the first alarm signal and second alarm signal sends handheld device to far-end server or supervisor, such as hand
Machine, to pass on the warning information of the battery bag in real time, and then can in time notify that related personnel makes emergent management measure, so that
The generation of security incident can be kept away.In the present embodiment, the GPRS communication module 60 include GPRS communication nodes 61 and
GPRS communication nodes vice-node 62, the GPRS communication module 60 is communicated by the GPRS communication nodes 61 or the GPRS
Node vice-node 62 is attached with the CAN 10 and communicates.
Referring again to Fig. 2, it is the cut-away view of each module.The host module 20, charging module 30, Insulation monitoring
Module 40, multiple balance modules 50 and GPRS communication module 60 include BMS system equipments sub-protocol 101, object dictionary 102
And communication interface 103 is supporting the CANOPEN agreements.Wherein, the object dictionary 102 specifically includes data type, leads to
News object and application.The communication interface 103 includes NMT (Network management, network management) agreement, the heart
Jump agreement (Heartbeat protocol), SDO (Service Data Object, Service Data Object) agreements and PDO
(Process data object, process data object) agreement.Wherein, the NMT agreements are used to change the state of module.Institute
Heart-beat protocol is stated for monitoring the node in network and confirming its normal work.Specifically, the producer of heartbeat message is periodically
Submitting function code 1110, ID be node ID itself information, the data portion of information has a position for expression node state.And
The consumer of heartbeat message is responsible for receiving above-mentioned data, if within a specified time, consumer does not receive information, can determine that heartbeat
Producer's failure or mistake of information.The SDO agreements are used to access the object dictionary of distant-end node, read or set therein
Data.The PDO agreements are used to exchange instant data between many nodes.
Principle is operated using CANOPEN agreements to the battery management system 100 below to illustrate.
After electricity on the battery management system 100, each functional node enters init state, and sends BOOT-
UP starts message, while notifying that the main frame host node 21 of BMS enters pre-operation state；In pre-operation state, the main frame master
Node 21 passes through first " Connect_Remote_Node " message (being CAL NMT service) and its host module for connecting
20 set up dialogue.If session establishment success, its communication interface 103 (SDO and PDO) CAL DBT service distributes each from node
ID, it is achieved thereby that the dynamically distributes of communication id address.Additionally, in pre-operation state, the main frame host node 21 also leads to
Cross the configuration of SDO Service Data Objects each from node and vice-node object dictionary 102.Specifically, in the present embodiment, the electricity
Pond management system 100 each functional node object dictionary 102 is configured with PDO messaging parameters, mapping parameters and SDO and receives ginseng
Number.
Further, the host module 20 is also according to task busy extent distribution synchronization SYNC data, services, overall association
Adjust synchronous each node PDO data transfers；Wherein, each node object dictionary 102 is provided with Heartbeat heartbeat message parameters；
Main frame host node 21 sends Start_Remote_node (0x01) message after the completion of configuring, and allows each to enter operation from node and transports
Row state；Each to be set to the Heartbeat heartbeat message producers from node, vice-node is consumed as Heartbeat heartbeat messages
Person, and be one timeout value of Heartbeat node sets, when one of them from node because occurring abnormal when there is time-out, disconnect
Should should upgrade to corresponding function node from the corresponding vice-node of node and work on from node connection.
When main frame host node 21 itself workload is busy, other can be allowed in network from node for example, such as Insulation monitoring
Module 40 or the issue SYNC sync messages of GPRS communication module 60；Main frame host node 21 is dynamically adjusted always according to offered load amount
SYNC messages send the time, are serviced by SDO, and network is configured again.When BMS networks increase from node, can be automatic
Distribution network ID, then should be from node object dictionary 102, so as to reach automatic network expanding function by SDO service configuration.
Network management is carried out using CANOPEN agreements in battery management system provided by the present invention 100, each module
Node takes the mode of Redundancy Design, but only one of which node is in each equipment section in task status, and network simultaneously
Point is mutually supervised by heartbeat message, and when a node failure, its corresponding vice-node immediately enters mission mode, and then makes
The security performance for obtaining the battery management system 100 is greatly promoted.Further, the host module 20 is also busy according to task
Degree dynamically distributes task to child node, and system work in can dynamically distributes network equipment node address ID and dynamic adjust
The parameter configuration of whole network equipment node, and then cause that field data obtains effectively treatment in time, network efficiency is greatly promoted.This
Outward, because the network equipment supports dynamically distributes node address ID so that networking expansion without manpower intervention, prevented production and
The error rate of maintenance, and reduce cost of labor.
The present invention is not restricted to described in specification and implementation method, therefore for the personnel of familiar field
Additional advantage and modification are easily achieved, therefore in the essence of the universal limited without departing substantially from claim and equivalency range
In the case of god and scope, the present invention is not limited to specific details, representational equipment and shown here as the diagram with description
Example.
Claims (9)
1. a kind of battery management system, its battery bag for being applied in electric automobile and to the electric automobile is managed；Its
In, the battery bag includes multiple battery packs, and the battery pack includes some cells；It is characterized in that：The cell tube
Reason system is including the CAN for communicating, the host module for estimating the battery bag SOC, for entering to the battery
The charging module of row management of charging and discharging, the insulation monitoring module of insulation values for detecting the battery pack and for balanced institute
State multiple balance modules of the electricity of cell in multiple battery packs；The host module includes main frame host node and master
Machine vice-node, and be attached with the CAN and communicated by the main frame host node or the main frame vice-node；It is described
Charging module includes charging from node and charging from node vice-node, and by it is described charge from node or the charging from
Node vice-node is attached with the CAN and communicates；The insulation monitoring module include Insulation monitoring from node and absolutely
Edge detected from node vice-node, and by the Insulation monitoring from node or the Insulation monitoring from node vice-node with it is described
CAN is attached communication；Described each balance module includes equilibrium from node and equilibrium from node vice-node, and passes through
The equilibrium is attached with the CAN from node vice-node and communicates from node or the equilibrium；The battery management
System uses the CANOPEN agreements to carry out network management to realize the communication between each module.
2. battery management system as claimed in claim 1, it is characterised in that：The battery management system is also communicated including GPRS
Module；The GPRS communication module includes GPRS communication nodes and GPRS communication node vice-nodes, and logical by the GPRS
News node or the GPRS communication nodes vice-node are attached with the CAN and communicate.
3. battery management system as claimed in claim 2, it is characterised in that：The host module is additionally operable to detect the battery
Whether the cell function in group is normal, and sends the first alarm signal and pass through when detecting the cell and being abnormal
The CAN is sent to the GPRS communication module；The GPRS communication module is used to receive first alarm signal, and
First alarm signal is sent the handheld device to far-end server or supervisor to pass on the battery bag in real time
Warning information.
4. battery management system as claimed in claim 2, it is characterised in that：When the insulation values of the battery are less than preset value
When, the insulation monitoring module is sent the second alarm signal and is sent to the GPRS communication module by the CAN；Institute
State GPRS communication module to be additionally operable to receive second alarm signal, and first alarm signal is sent to far-end server
Or the handheld device of supervisor passing on the warning information of the battery bag in real time.
5. battery management system as claimed in claim 1, it is characterised in that：It is the CAN, the host module, described
Charging module, the insulation monitoring module of the insulation values and the multiple balance module include BMS system equipments sub-protocol,
Object dictionary and communication interface are run with supporting the CANOPEN agreements.
6. battery management system as claimed in claim 5, it is characterised in that：The object dictionary includes data type, communication
Object and application.
7. battery management system as claimed in claim 5, it is characterised in that：The communication interface includes that NMT agreements, heartbeat are assisted
View, SDO agreements and PDO agreements；The NMT agreements are used to change the state of module；The heart-beat protocol is used to monitor network
In node and confirm its normal work；The SDO agreements are used to access the object dictionary of distant-end node, read or set wherein
Data；The PDO agreements are used to exchange instant data among multiple nodes.
8. battery management system as claimed in claim 1, it is characterised in that：The multiple balance module and the multiple battery
Group is corresponded.
9. battery management system as claimed in claim 2, it is characterised in that：The GPRS communication module sets including BMS systems
Standby sub-protocol, object dictionary and communication interface are run with supporting the CANOPEN agreements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611115538.2A CN106740191A (en) | 2016-12-07 | 2016-12-07 | Battery management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611115538.2A CN106740191A (en) | 2016-12-07 | 2016-12-07 | Battery management system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106740191A true CN106740191A (en) | 2017-05-31 |
Family
ID=58876993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611115538.2A Pending CN106740191A (en) | 2016-12-07 | 2016-12-07 | Battery management system |
Country Status (1)
| Country | Link |
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| CN (1) | CN106740191A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112124131A (en) * | 2019-06-24 | 2020-12-25 | 普天信息技术有限公司 | Unified access management method and system for charging piles based on multiple communication protocols |
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|---|---|---|---|---|
| CN202142877U (en) * | 2011-05-27 | 2012-02-08 | 南昌大学 | Multi-CAN battery pack management apparatus |
| CN103064769A (en) * | 2012-12-30 | 2013-04-24 | 长沙湘计海盾科技有限公司 | Dual hot standby server system |
| CN103683428A (en) * | 2013-12-20 | 2014-03-26 | 奇瑞汽车股份有限公司 | Battery management system for electronic vehicle and electronic vehicle |
| EP2928041A1 (en) * | 2013-10-25 | 2015-10-07 | LG Chem, Ltd. | Battery management system capable of transmitting secondary protection signal and diagnostic signal using few insulation elements |
| CN105730274A (en) * | 2016-02-03 | 2016-07-06 | 安徽江淮汽车股份有限公司 | Battery management system and control method thereof |
-
2016
- 2016-12-07 CN CN201611115538.2A patent/CN106740191A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202142877U (en) * | 2011-05-27 | 2012-02-08 | 南昌大学 | Multi-CAN battery pack management apparatus |
| CN103064769A (en) * | 2012-12-30 | 2013-04-24 | 长沙湘计海盾科技有限公司 | Dual hot standby server system |
| EP2928041A1 (en) * | 2013-10-25 | 2015-10-07 | LG Chem, Ltd. | Battery management system capable of transmitting secondary protection signal and diagnostic signal using few insulation elements |
| CN103683428A (en) * | 2013-12-20 | 2014-03-26 | 奇瑞汽车股份有限公司 | Battery management system for electronic vehicle and electronic vehicle |
| CN105730274A (en) * | 2016-02-03 | 2016-07-06 | 安徽江淮汽车股份有限公司 | Battery management system and control method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112124131A (en) * | 2019-06-24 | 2020-12-25 | 普天信息技术有限公司 | Unified access management method and system for charging piles based on multiple communication protocols |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20191030 Address after: 518000 Shenyu Science and Technology Park, No. 68 Lanjingbei Road, Laokeng Community, Longtian Street, Pingshan District, Shenzhen City, Guangdong Province, 101 Applicant after: Shenzhen Anding New Energy Technology Development Co., Ltd. Address before: 518000 Guangdong Province, Shenzhen City Pingshan Pingshan community Zhu Keng Industrial Zone 9 1-3 Applicant before: Shenzhen Optimum Battery Co., Ltd. |
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