CN107839529A - A kind of battery management system and its application - Google Patents
A kind of battery management system and its application Download PDFInfo
- Publication number
- CN107839529A CN107839529A CN201711096641.1A CN201711096641A CN107839529A CN 107839529 A CN107839529 A CN 107839529A CN 201711096641 A CN201711096641 A CN 201711096641A CN 107839529 A CN107839529 A CN 107839529A
- Authority
- CN
- China
- Prior art keywords
- management system
- battery
- module
- electronic class
- control device
- 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.)
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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
- 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
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
-
- 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
-
- 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
Abstract
The invention provides it is a kind of it is simple in construction, security performance is high, is readily disassembled and battery management system that battery efficiency is high, the battery management system includes battery pack and the boost module being connected with battery pack, the battery pack includes the battery unit of multiple series connection, each battery unit, which is isolated, to come, and the battery unit includes battery cell and the active equalization module being connected；The boost module establishes connection via the load of power distribution equipment and electrical equipment, for the voltage of battery pack to be risen to the operating voltage of electrical equipment.The invention also discloses application of the above-mentioned battery management system in the electronic class vehicles, provide a kind of management system and management method of the electronic class vehicles, especially suitable for currently a popular shared vehicle modes, there is the characteristics of convenient, fast, efficient.
Description
Technical field
The invention belongs to cell art, and in particular to a kind of battery management system and its application, can realize great Rong
The battery module of amount is applied in the electronic class vehicles.
Background technology
The electric moter voltage of the electronic class vehicles is typically between 36V ~ 72V, and the voltage of single lithium battery typically exists
Between 2.0V ~ 5.0V, therefore, multiple lithium cells are generally concatenated to voltage required during reaching motor work.Due to lithium
The inconsistency of battery performance, such as：The difference of internal resistance, capacity and self-discharge performance, the lithium battery of series connection is in charge and discharge process
In the inconsistent phenomenon of discharge and recharge occurs.Super-charge super-discharge can not only influence the life-span of whole battery pack, and it is hidden also to bury safety
Suffer from.
In order to solve the problems, such as super-charge super-discharge, the lithium cells of each series connection are monitored using control chip, when some lithium electricity
When the voltage of pool unit exceedes overcharged voltage or pressed less than overdischarge, control chip will stop charge and discharge process, due to each
The inconsistency of lithium cells performance, the voltage of Individual cells can be higher or relatively low, so as to cause discharge and recharge premature end, leads
The capacity of whole battery pack is caused to decline.In the prior art, the method for balancer being connected on generally use battery unit improves
The capacity of battery pack, conventional is passive balancer, and it is released energy in the form of electric discharge, individually reduces overtension
Lithium cells so that the discharge and recharge of whole battery pack continues.In order that lithium battery group voltage reaches motor operating voltage,
7 ~ 17 low pressure lithium cells of series connection are generally required at present, shortcoming is：1st, because each battery unit is required to and chip control
Device connection processed, causes whole system attachment structure intricate, battery unit that is not easy-maintaining or changing damage；If the 2nd, battery list
Member has larger capacity, then whole battery pack is sufficiently bulky, very heavy；3rd, battery pack is less efficient.Active equalization device is
The electricity of the lithium cells of overtension is transferred in the relatively low battery unit of voltage, have can reduce energy loss,
The advantages of battery pack efficiency is higher, but cost is higher.
Therefore, there is an urgent need to research and develop a kind of battery management system, the system includes the electricity of a small amount of battery cells in series composition
Pond group, the battery system have simple in construction, small volume and lower-cost excellent while motor operating voltage is met
Point.
The content of the invention
In view of the deficiencies of the prior art, one there is provided that a kind of battery cells in series number is few, structure is simple to the present invention
Battery management system single, security performance is high, the battery management system include battery pack and the boosting mould being connected with battery pack
Block, the battery pack include the battery unit of multiple series connection, and the battery unit includes the battery cell being connected and active
Weigh module；The boost module establishes connection via the load of power distribution equipment and electrical equipment, for by the voltage liter of battery pack
To the operating voltage of electrical equipment.The technical scheme eliminates the control chip in conventional method, is no longer prevented by control chip
Only each battery unit is by super-charge super-discharge, but each battery unit is arranged into active equalization module, to reduce each battery
Inconsistency between unit, the possibility of each battery unit super-charge super-discharge is significantly reduced, effectively reduces battery
The number of unit concatenation, the weight and volume of whole battery pack are reduced, improve the efficiency of whole battery pack.
Further, each described battery unit is covered by metal shell respectively, so that each battery unit quilt
Keep apart.Such safety for being designed to ensure whole battery pack, avoid the occurrence of once a battery unit is on fire, entirely
The problem of battery pack is on fire, also allow for the battery unit of maintenance damage.
Further, the boost module includes multiple converters, and each described converter is via power distribution equipment with using
Connection is established in the load of electric equipment.It is such to design the application for having widened whole battery management system, flexibly and easily.
Further, the battery management system also includes battery equilibrium module, in the current boost module and battery
Battery equilibrium module is connected between group, the stability of whole battery management system power supply can be ensured.
Further, the battery management system also includes control device of wireless, and control device of wireless leads to boost module
News connection, for controlling being turned on and off for boost module.
Further, control device of wireless described in described control device of wireless includes the main control module of connection, communication mould
Block, locating module, detection module and information storage module, the communication module establish communication connection with user terminal.
The present invention two is the application for disclosing above-mentioned battery management system in the electronic class vehicles, there is provided Yi Zhong electricity
The management system of the dynamic class vehicles, it can allow for taking in greatly battery module applied in the electronic class vehicles, it is especially advantageous
Transformed again in electric bicycle in by the battery pack of electric automobile.
The management system of the electronic class vehicles includes high in the clouds management system, intelligent bicycle lock and above-mentioned battery management
System, between described intelligent bicycle lock and battery management system, and described high in the clouds management system and battery management system it
Between establish communication connection.
In addition, present invention also offers a kind of management method of the electronic class vehicles, using above-mentioned electronic class traffic work
The management system of tool, this method, which is particularly suitable for use in, manages the currently a popular shared vehicles.The management method specifically include with
Lower step：
S1, user log in the predetermined electric bicycle of high in the clouds management system, obtain including electronic class vehicles address really
Recognize notice；
S2, high in the clouds management system send authorization signal to the control device of wireless of the electronic class vehicles, wait user to pick up the car,
Or after user reaches electronic class vehicles position, authorization signal is directly sent by user terminal；
After S3, the electronic class vehicles receive authorization signal, intelligent vehicle is voluntarily released by the control device of wireless of itself
Lock；
After S4, the electronic class vehicles unblock, control device of wireless automatically turns on boost module, rises to the voltage of battery pack
The operating voltage of the electronic class vehicles；
When S5, user give back the electronic class vehicles, by user terminal or directly from high in the clouds management system to electrical salf-walking
The control device of wireless of car sends locking signal, and after control device of wireless receives signal, manipulation intelligent bicycle lock is locked and closed
Boost module.
Beneficial effects of the present invention：
1st, the invention provides it is a kind of it is simple in construction, security performance is high, is readily disassembled and battery management system that battery efficiency is high
System, the battery pack of the system are included on a small quantity（2~4）Series-connected cell unit, each series-connected cell unit arrange actively
Weighed module, and battery pack is boosted to the operating voltage of motor by boost module, is effectively reducing battery pack volume and letter
While changing electric connection structure so that battery unit of the invention can use the battery cell of Large Copacity；
2nd, the management system and management method of the electronic class vehicles provided by the invention, shared especially suitable for currently a popular
Vehicle modes, there is the characteristics of convenient, fast, efficient, orderly automatic management can be realized, and quilt can be followed the trail of
The vehicles of lending.
Brief description of the drawings
Fig. 1 is a kind of battery management system structural representation disclosed in embodiment 1.
Fig. 2 is the connection diagram of members in a kind of battery management system disclosed in embodiment 2.
Embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings, but does not limit the protection of the present invention
Scope.
Embodiment 1
Present embodiment discloses a kind of battery management system.Reference picture 1, there is disclosed the structure of the present embodiment battery management system
Composition, includes the lithium battery group 1 and DC boosting module 2 of connection, DC boosting module 2 is via dc bus and DC distribution list
The input connection of member 4, and the load 5 of the output end of Direct Current Distribution Unit 4 connection electrical equipment.
The lithium battery group 1 of the present embodiment includes the battery unit 10 of four series connection, and each battery unit 10 includes being connected
Battery cell and active equalization module, and each battery unit 10 is covered by metal shell respectively, so that each
Battery unit 10, which is isolated, to come.The present embodiment reduces the voltage difference of each battery unit 10 by active equalization module,
As shown by data, active equalization module can reduce the voltage difference of each battery unit 10 in 0.1V or so, therefore, largely
The possibility of battery cell super-charge super-discharge is reduced, and then effectively reduces the number of the concatenation of battery unit 10, in this implementation
Four battery units 10 of connecting only are needed in example, and seven to ten seven battery units of series connection are usually required in conventional method, significantly
Ground simplifies the electric connection structure of whole battery pack, and reduces the volume and weight of battery pack, so as to use great Rong
The battery cell of amount, such as：Improved batteries of electric automobile.At the same time, in order to prevent the failure of active equalization module, often
Individual battery unit 10 will be covered by metal-back, to ensure being perfectly safe for system.In conventional methods where, using control chip to every
The voltage of individual battery unit 10 is detected, and using electronic switch control discharge and recharge, because the series number of battery unit 10 is more
And lack isolation, once a battery catches fire, whole battery pack all can be on fire.And the present embodiment is dropped by active equalization module
Inconsistency between low each battery unit 10, does not need control chip, by each battery list for being connected with active equalization module
Member 10 avoids super-charge super-discharge problem；In addition, each battery unit 10 is kept apart by metal shell, not only facilitate to battery list
Member 10 is repaired and changed, and ensure that the security performance of whole battery pack.
The DC boosting module 2 of the present embodiment connects lithium battery group 1, is set for the voltage of lithium battery group 1 to be risen into electricity consumption
The operating voltage of standby direct current generator.Multiple converters are set in DC boosting module 2, and each converter is via dc bus and directly
Flow power supply unit 4 and connection is established in the load 5 of electrical equipment.
Embodiment 2
Present embodiment discloses a kind of battery management system, the difference with embodiment 1 is：Add the He of battery equilibrium module 3
Control device of wireless, and the attachment structure reference picture 2 between lithium battery group 1, DC boosting module 2 and battery equilibrium module 3
It is shown；Control device of wireless includes main control module, communication module, detection module, locating module and information storage module, described
Communication module establishes communication connection with user terminal.The composition structure of lithium battery group 1 is with reference to described in embodiment 1；Compare embodiment
1, DC boosting module 2 is equipped with automatic switch, and the automatic switch is manipulated by control device of wireless.
Entirely the attachment structure of battery management system is：Lithium battery group 1 connects battery equilibrium module 3, battery equilibrium module 3
DC boosting module 2 is connected, DC boosting module 2 is connected via dc bus with the input of Direct Current Distribution Unit 4, and direct current
The load 5 of the output end connection electrical equipment of power supply unit 4；And control device of wireless is electric with DC boosting module 2 and lithium respectively
Pond group 1 establishes communication connection.
The open and close of control device of wireless manipulation DC boosting module 2, when the detection module of control device of wireless is supervised
When measuring the voltage of lithium battery group 1 and reaching the operating voltage of electrical equipment, DC boosting module 2 can be closed automatically.
Embodiment 3
Present embodiment discloses a kind of management system of electric bicycle, including battery management system described in embodiment 2, high in the clouds
Management system and intelligent bicycle lock, between described intelligent bicycle lock and battery management system, and described high in the clouds management system
Communication connection is established between battery management system.The system, which is particularly suitable for use in, manages the currently a popular shared class vehicles.
Because the control device of wireless in battery management system has locating module, therefore, can monitor in real time by user
The current state of the vehicles borrowed.The main control module of control device of wireless can basis signal manipulation intelligent bicycle lock solved
Lock or lock.
Embodiment 4
Present embodiment discloses a kind of management method of shared electric bicycle, using the management system described in embodiment 3, specifically
Step is as described below：
S1, user log in the predetermined electric bicycle of high in the clouds management system, obtain including electronic class vehicles address really
Recognize notice；
S2, high in the clouds management system send authorization signal to the control device of wireless of the electronic class vehicles, wait user to pick up the car,
Or after user reaches electronic class vehicles position, authorization signal is directly sent by user terminal；
After S3, the electronic class vehicles receive authorization signal, intelligent vehicle is voluntarily released by the control device of wireless of itself
Lock；
After S4, the electronic class vehicles unblock, control device of wireless automatically turns on boost module, rises to the voltage of battery pack
The operating voltage of the electronic class vehicles；
When S5, user give back the electronic class vehicles, by user terminal or directly from high in the clouds management system to electrical salf-walking
The control device of wireless of car sends locking signal, and after control device of wireless receives signal, manipulation intelligent bicycle lock is locked and closed
Boost module.
It should be noted that the relevant information of shared electric bicycle is stored in the management system of high in the clouds.User terminal can
For mobile phone, and authorization signal can be the appointment codes of NFC signals that mobile phone is sent or application program of mobile phone.
Described above is only the preferred embodiment of the present invention, not makees any formal limitation to the present invention.Should
Point out, for those skilled in the art, under the premise without departing from the principles of the invention, if can also make
Dry improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of battery management system, it is characterised in that the boost module being connected including battery pack and with battery pack, the electricity
Pond group includes the battery unit of multiple series connection, and each battery unit, which is isolated, to come, and the battery unit includes the electricity being connected
Pond monomer and active equalization module；The boost module establishes connection via the load of power distribution equipment and electrical equipment, for inciting somebody to action
The voltage of battery pack rises to the operating voltage of electrical equipment.
A kind of 2. battery management system according to claim 1, it is characterised in that each described battery unit respectively by
Metal shell covers.
3. a kind of battery management system according to claim 1, it is characterised in that the battery unit number of the series connection is
2~4.
4. according to a kind of battery management system described in claim any one of 1-3, it is characterised in that the boost module bag
Multiple converters are included, each described converter establishes connection via the load of power distribution equipment and electrical equipment.
5. a kind of battery management system according to claim 4, it is characterised in that the battery management system also includes electricity
Pond balance module, battery equilibrium module is connected between the current boost module and battery pack.
6. according to a kind of battery management system any one of claim 1,2,3 and 5, it is characterised in that the battery
Management system also includes control device of wireless, and the control device of wireless connects with boost module communication, for controlling the mould that boosts
Block is turned on and off.
7. a kind of battery management system according to claim 6, it is characterised in that the control device of wireless includes connection
Main control module, communication module, detection module, locating module and information storage module, the communication module and user terminal
Establish communication connection.
8. a kind of management system of the electronic class vehicles, it is characterised in that including cell tube as claimed in claims 6 or 7
Reason system, high in the clouds management system and intelligent bicycle lock, between described intelligent bicycle lock and battery management system, and described cloud
Hold and communication connection is established between management system and battery management system.
9. a kind of management method of the electronic class vehicles, it is characterised in that using the management system described in claim 8, tool
Body comprises the following steps：
S1, user log in the predetermined electric bicycle of high in the clouds management system, obtain including electronic class vehicles address really
Recognize notice；
S2, high in the clouds management system send authorization signal to the control device of wireless of the electronic class vehicles, wait user to pick up the car,
Or after user reaches electronic class vehicles position, authorization signal is directly sent by user terminal；
After S3, the electronic class vehicles receive authorization signal, intelligent vehicle is voluntarily released by the control device of wireless of itself
Lock；
After S4, the electronic class vehicles unblock, control device of wireless automatically turns on boost module, rises to the voltage of battery pack
The operating voltage of the electronic class vehicles；
When S5, user give back the electronic class vehicles, by user terminal or directly from high in the clouds management system to electrical salf-walking
The control device of wireless of car sends locking signal, and after control device of wireless receives signal, manipulation intelligent bicycle lock is locked and closed
Boost module.
A kind of 10. management method of electronic class vehicles according to claim 9, it is characterised in that described mandate
Signal is the appointment codes of the NFC signals that mobile phone is sent or application program.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711096641.1A CN107839529A (en) | 2017-11-09 | 2017-11-09 | A kind of battery management system and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711096641.1A CN107839529A (en) | 2017-11-09 | 2017-11-09 | A kind of battery management system and its application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107839529A true CN107839529A (en) | 2018-03-27 |
Family
ID=61682468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711096641.1A Pending CN107839529A (en) | 2017-11-09 | 2017-11-09 | A kind of battery management system and its application |
Country Status (1)
| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109649213A (en) * | 2018-11-22 | 2019-04-19 | 西安电子科技大学芜湖研究院 | A kind of open cell Distribution Management System |
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Effective date of registration: 20210224 Address after: 311200 room 301-52, Xiaoshan science and Technology City, building 1, ChuanHua science and technology building, Xiaoshan District, Hangzhou City, Zhejiang Province Applicant after: Weiai energy (Hangzhou) Co.,Ltd. Address before: 516229 room 1208, building C, Kaichen technology business incubator, No. 49, Chenjiang Avenue North, Chenjiang street, Zhongkai high tech Zone, Huizhou City, Guangdong Province Applicant before: WEIAI ENERGY (HUIZHOU) Co.,Ltd. |
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