CN206374571U - Electric automobile and its battery management system - Google Patents
Electric automobile and its battery management system Download PDFInfo
- Publication number
- CN206374571U CN206374571U CN201621313528.5U CN201621313528U CN206374571U CN 206374571 U CN206374571 U CN 206374571U CN 201621313528 U CN201621313528 U CN 201621313528U CN 206374571 U CN206374571 U CN 206374571U
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- Prior art keywords
- battery
- battery management
- functional module
- management system
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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
-
- 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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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
A kind of battery management system includes multiple first functional modules and second functional module, and the multiple first functional module is connected with second functional module.Each first functional module is included with battery management unit that entire car controller and charger are communicated and for the battery control unit for the status information for gathering corresponding battery module.Second functional module includes the disconnection for control relay and data input output control unit, the expanding communication unit for detecting the battery bag to the Insulation monitoring unit of the insulation resistance value of car body and for being communicated with car-mounted terminal of closure.When the battery management unit in a certain first functional module breaks down, other first functional modules and the second functional module normal work.Above-mentioned battery management system remains to normal work when battery management unit breaks down.The utility model also provides a kind of electric automobile of the application battery management system.
Description
【Technical field】
The utility model is related to electric vehicle engineering field, more particularly to a kind of electric automobile and its battery management system.
【Background technology】
At present, the BMS (Battery Management System, battery management system) of electric automobile uses single BMU
(Battery Management Unit, battery management unit) is interacted with vehicle, to complete SOH (State of
Health, health status) function such as estimation, communication, Insulation monitoring, therefore the requirement to BMU is higher, BMU cost is also higher.
When BMU breaks down, whole BMS paralysis, so as to influence the safety of vehicle.
In view of the foregoing, it is necessary to provide a kind of new electric automobile and its battery management system to overcome the above in fact
Defect.
【The content of the invention】
The purpose of this utility model is to provide a kind of battery that normal work is remained to when battery management unit breaks down
Management system.
To achieve these goals, the utility model provides a kind of battery management system, and the battery management system is used for
Multiple battery modules in battery bag are managed, the battery management system includes multiple first functional modules and second function
Module, the multiple first functional module is connected with second functional module, and each first functional module includes and vehicle control
Battery management unit that device and charger processed are communicated and for the battery control for the status information for gathering corresponding battery module
Unit processed, second functional module include for control relay disconnection and closure data input output control unit,
For detecting the battery bag to the Insulation monitoring unit of the insulation resistance value of car body and for being communicated with car-mounted terminal
Expanding communication unit, when in a certain first functional module battery management unit break down when, other first functional modules and
The second functional module normal work.
Further, the multiple first functional module passes through Controller Area Network BUS and the second functional module phase
Even.
Further, the battery management unit and battery control unit in each first functional module pass through controller local
Network bus is communicated.
Further, each battery management unit is by Controller Area Network BUS and the entire car controller and described fills
Motor is communicated.
Further, the status information collected is exported corresponding battery management unit, institute by each battery control unit
Stating status information includes voltage, electric current and the temperature of the battery module, and the battery management unit is according to the state received
Information judges whether the battery module overcharges and mistake is put or whether temperature is too high.
Further, the insulation resistance value of the car body is less than in advance when the Insulation monitoring unit detects the battery bag
If during value, the battery management unit sends alarm signal, the data input output control unit controls the relay to cut
The High voltage output loop for the battery bag of breaking.
Further, the quantity of first functional module is more than or equal to the quantity of the battery module.
The purpose of this utility model is also to provide a kind of electric automobile of the application battery management system.
To achieve these goals, the utility model provides a kind of electric automobile, and the electric automobile includes battery bag, whole
Vehicle controller, charger, car-mounted terminal and battery management system as described above, the battery management system and the battery
Bag, the entire car controller, the charger and the car-mounted terminal are connected.
Compared to prior art, the utility model in the battery management system by setting multiple first functional modules
And second functional module, and setting battery management unit and battery control unit in each first functional module, and
Data input output control unit, Insulation monitoring unit and expanding communication unit are set in second functional module, so that institute
Stating battery management system can be managed to multiple battery modules in the battery bag, and in a certain first functional module
Battery management unit remains to normal work when breaking down, and ensures that the safety of the electric automobile.
【Brief description of the drawings】
The theory diagram for the electric automobile that Fig. 1 provides for embodiment of the present utility model.
【Embodiment】
In order that the purpose of this utility model, technical scheme and advantageous effects become apparent from understanding, below in conjunction with
Accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, and shows
So, described embodiment is only a part of embodiment of the utility model, rather than whole embodiments.It is new based on this practicality
Embodiment in type, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of the utility model protection.
When an element was considered as with another element " being connected ", it can be directly to another element or
It may be simultaneously present centering elements.Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to this reality
The implication being generally understood that with new those skilled in the art is identical.Made herein in specification of the present utility model
Term is intended merely to describe the purpose of specific embodiment, it is not intended that in limitation the utility model.
Referring to Fig. 1, the theory diagram for the electric automobile 10 that Fig. 1 provides for embodiment of the present utility model.It is described electronic
Automobile 10 includes battery management system 100, battery bag 200, entire car controller 300, charger 500 and car-mounted terminal 600.It is described
Battery management system 100 and the battery bag 200, the entire car controller 300, the charger 500 and the car-mounted terminal
600 are connected.Multiple battery modules 210 in the battery management system 100 management battery bag 200, and with the full-vehicle control
Device 300, the charger 500 and the car-mounted terminal 600 communicate.
The battery management system 100 includes multiple first functional modules 110 and second functional module 120, described
Multiple first functional modules 110 are connected with second functional module 120.Each first functional module 110 include with it is described whole
The BMU (Battery Management Unit, battery management unit) that vehicle controller 300 and the charger 500 are communicated
112 and (Battery Control Unit, battery control is single for the BCU of the status information that gathers corresponding battery module 210
Member) 116.Second functional module 120 includes the disconnection and closure and the DI/ for carrying out strong and weak electricity isolation for control relay
DO (Data Input/Data Output, data input output) control unit 122, for detecting the battery bag 200 to car
The Insulation monitoring unit 126 of the insulation resistance value of body and the expanding communication unit for being communicated with the car-mounted terminal 600
128.When the BMU 112 in a certain first functional module 110 breaks down, other first functional modules 110 and described second
The normal work of functional module 120.
In the present embodiment, the multiple first functional module 110 passes through CAN (Controller Area
Network, controller LAN) bus is connected with second functional module 120.BMU in each first functional module 110
112 and BCU 116 is communicated by CAN.Each BMU 112 passes through CAN and the entire car controller 300 and institute
Charger 500 is stated to be communicated.The quantity of first functional module 110 is more than or equal to described in the battery management system 100
The quantity of battery module 210 in battery bag 200.The status information of the battery module 210 includes the electricity of the battery module 210
Pressure, electric current and temperature.The multiple battery module 210 is connected, and each battery module 210 includes multiple cells, described many
Individual cell is connected by way of first parallel connection is connected again.
In the present embodiment, the BMU 112 is inexpensive process chip, so as to reduce the battery management system
The cost of system 100.The car-mounted terminal 600 has merged GPS (Global Position System, global positioning system) skill
The technologies such as art, mileage location technology and automobile black box technology, it is achieved thereby that the traffic safety to the electric automobile 10 is monitored
The modern managements such as management, operation management, Service Quality Management, intelligent centralized dispatching management.The expanding communication unit 128 is also
The communication between other modules or electronic component in second functional module 120 and the electric automobile 10 can be realized.
The battery management system 100 can also realize that the institute of existing battery management system is functional, for example, calculating the SOC of battery
(State of Charge, charge condition) and SOH (State of Health, health status), precharge, high-voltage interlocking,
The functions such as weighing apparatus control.
The operation principle to the utility model electric automobile 10 and its battery management system 100 is illustrated below.
When the battery bag 200 is in charge or discharge state, each BCU 116 gathers corresponding battery module 210
Status information, and the status information collected is exported to corresponding BMU 112.The BMU 112 is according to the shape received
State signal judges whether the battery module 210 overcharges and mistake is put and whether temperature is too high.
When the BMU 112 judges that a certain battery module 210 is overcharged, the BMU 112 controls the charger 500 to stop
Only charged to the battery bag 200.When the BMU 112 judges that a certain battery module 210 is put excessively, the BMU 112 is sent
Alarm signal, and discharge signal is exported to the DI/DO control units 122 and the entire car controller 300, the DI/DO
Control unit 122 receives the High voltage output time crossed after discharge signal, control the relay cut-out battery bag 200
Road.When the BMU 112 judges that the temperature of a certain battery module 210 is too high, the BMU 112 sends alarm signal, and will
The too high signal output of temperature gives the DI/DO control units 122 and the entire car controller 300, the DI/DO control units
122, which receive the temperature, crosses after high RST, controls the relay to cut off the High voltage output loop of the battery bag 200.
Preset when the insulation resistance value that the Insulation monitoring unit 126 detects 200 pairs of car bodies of battery bag is less than
During value, show the battery bag 200 in electric leakage, the BMU 112 sends alarm signal, and the DI/DO control units 122 are controlled
The relay cuts off the High voltage output loop of the battery bag 200, to ensure the safety of user.
When the BMU 112 in a certain first functional module 110 breaks down, other first functional modules 110 and described
The normal work of second functional module 120, the battery management system 100 remains to normal work, and keeps and the full-vehicle control
Device 300 is communicated, so as to ensure that the normal operation of the electric automobile 10.
The utility model in the battery management system 100 by setting multiple first functional modules 110 and one
Two functional modules 120, and the setting BMU 112 and BCU 116 in each first functional module 110, and in second function
DI/DO control units 122, Insulation monitoring unit 126 and expanding communication unit 128 are set in module 120, so that the cell tube
Reason system 100 can be managed to multiple battery modules 210 in the battery bag 200, and in a certain first functional module 110
In BMU 112 break down when remain to normal work, ensure that the safety of the electric automobile 10.
The utility model is not restricted to described in description and embodiments, thus for familiar field personnel and
Additional advantage and modification is easily achieved in speech, therefore in the universal limited without departing substantially from claim and equivalency range
In the case of spirit and scope, the utility model be not limited to specific details, representational equipment and shown here as with description
Examples shown.
Claims (8)
1. a kind of battery management system, for managing multiple battery modules in battery bag, it is characterised in that：The battery management
System includes multiple first functional modules and second functional module, the multiple first functional module and second function
Module is connected, and each first functional module includes the battery management unit communicated with entire car controller and charger and is used for
The battery control unit of the status information of corresponding battery module is gathered, second functional module includes being used for control relay
Disconnection and closure data input output control unit, for detecting that the battery bag is examined to the insulation of the insulation resistance value of car body
Survey unit and the expanding communication unit for being communicated with car-mounted terminal, the battery management in a certain first functional module
When unit breaks down, other first functional modules and the second functional module normal work.
2. battery management system as claimed in claim 1, it is characterised in that：The multiple first functional module passes through controller
Local area network bus is connected with second functional module.
3. battery management system as claimed in claim 1, it is characterised in that：Battery management list in each first functional module
Member and battery control unit are communicated by Controller Area Network BUS.
4. battery management system as claimed in claim 1, it is characterised in that：Each battery management unit passes through controller local
Network bus is communicated with the entire car controller and the charger.
5. battery management system as claimed in claim 1, it is characterised in that：Each battery control unit is by the state collected
Information exports corresponding battery management unit, and the status information includes voltage, electric current and the temperature of the battery module, described
Battery management unit judges whether the battery module overcharges and mistake is put or whether temperature is too high according to the status information received.
6. battery management system as claimed in claim 1, it is characterised in that：When the Insulation monitoring unit detects the electricity
When Chi Bao is less than preset value to the insulation resistance value of the car body, the battery management unit sends alarm signal, and the data are defeated
Enter the High voltage output loop that output control unit controls the relay to cut off the battery bag.
7. battery management system as claimed in claim 1, it is characterised in that：The quantity of first functional module is more than or waited
In the quantity of the battery module.
8. a kind of electric automobile, including battery bag, entire car controller, charger and car-mounted terminal, it is characterised in that：It is described electronic
Automobile also includes the battery management system as any one of claim 1-7, the battery management system and the battery
Bag, the entire car controller, the charger and the car-mounted terminal are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621313528.5U CN206374571U (en) | 2016-12-01 | 2016-12-01 | Electric automobile and its battery management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621313528.5U CN206374571U (en) | 2016-12-01 | 2016-12-01 | Electric automobile and its battery management system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206374571U true CN206374571U (en) | 2017-08-04 |
Family
ID=59406408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621313528.5U Active CN206374571U (en) | 2016-12-01 | 2016-12-01 | Electric automobile and its battery management system |
Country Status (1)
| Country | Link |
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| CN (1) | CN206374571U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107623150A (en) * | 2017-09-23 | 2018-01-23 | 江苏金坛长荡湖新能源科技有限公司 | The charging method and system of a kind of New-energy electric vehicle |
| CN108839566A (en) * | 2018-06-15 | 2018-11-20 | 威马智慧出行科技（上海）有限公司 | Vehicle insulation fault processing method, storage medium and electronic equipment |
| CN109606200A (en) * | 2018-12-19 | 2019-04-12 | 江苏科达车业有限公司 | A kind of new energy car battery management system |
-
2016
- 2016-12-01 CN CN201621313528.5U patent/CN206374571U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107623150A (en) * | 2017-09-23 | 2018-01-23 | 江苏金坛长荡湖新能源科技有限公司 | The charging method and system of a kind of New-energy electric vehicle |
| CN108839566A (en) * | 2018-06-15 | 2018-11-20 | 威马智慧出行科技（上海）有限公司 | Vehicle insulation fault processing method, storage medium and electronic equipment |
| CN109606200A (en) * | 2018-12-19 | 2019-04-12 | 江苏科达车业有限公司 | A kind of new energy car battery management system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 523000 Room 204, building 7, No.1 Xuefu Road, Songshanhu Park, Dongguan City, Guangdong Province Patentee after: Guangdong hengwo Technology Co., Ltd Address before: 523808 Guangdong Province, Dongguan City Lake Songshan Lake high tech Industrial Development Zone Branch Industrial Park building three Room 501 Patentee before: Guangdong Dynamic Power Technology Co., Ltd. Heng wo |