CN207549967U - Battery management system and electric vehicle with Big Dipper terminal - Google Patents
Battery management system and electric vehicle with Big Dipper terminal Download PDFInfo
- Publication number
- CN207549967U CN207549967U CN201720377888.XU CN201720377888U CN207549967U CN 207549967 U CN207549967 U CN 207549967U CN 201720377888 U CN201720377888 U CN 201720377888U CN 207549967 U CN207549967 U CN 207549967U
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- China
- Prior art keywords
- battery pack
- big dipper
- connect
- dipper terminal
- resistor
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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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- 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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- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a kind of battery management systems and electric vehicle with Big Dipper terminal, current sensing circuit, relay, battery pack state detector, DC/DC power modules and the Big Dipper terminal being connect the system comprises central processing unit and with the central processing unit.Position and the status information of battery pack can be exported in real time by the Big Dipper terminal, state and position so as to real-time query any one battery pack, it and can be by the alarm module alert in Big Dipper terminal, operation management system to be asked to be handled.The location information for the battery pack that operation management system is sent according to Big Dipper terminal can determine the position of battery pack quickly, convenient for quickly being handled battery pack, provide great convenience to the user.In addition, effective protection is carried out to battery pack by relay.The utility model realizes the intelligent management and control to battery pack, and energy and alarm, simple in structure, at low cost, has good practical application effect.
Description
Technical field
The utility model is related to field of intelligent control technology, more particularly to a kind of battery management system with Big Dipper terminal and
Electric vehicle.
Background technology
In recent years, electric vehicle sales volume surges, and Ministry of Industry and Information announces that the coming five years will establish 4,800,000 charging piles, and issue
Charging pile relevant national standard.The electric vehicle of the early stage in China is all based on the refitted car on vapour/diesel oil bassinet structure, by
In battery pack in electric vehicle cost proportion it is larger (passenger car about 50%, bus about 70%), along with country benefit
Patch policy, battery pack just become the focus of Development of Electric Vehicles.
At present, many electric vehicles are for managing all batteries packet of operator in the case where changing power mode, and change under power mode,
Battery is lease, cannot be timely particularly when battery pack breaks down so need state and the position of management and control battery pack
It detects and provides early warning, this can bring very big inconvenience to user, and at present can be in office there is no a kind of battery management system
When the state that all may know that any one battery pack and position are waited.In addition, current battery management system also lacks to battery
The effective protection of packet.
Therefore, it is badly in need of a kind of state for being capable of management and control battery pack and position, novel battery management system at present.
Utility model content
The utility model proposes a kind of battery management system and electric vehicle with Big Dipper terminal, can fully eliminate due to
One or more problems caused by the limitation of the prior art and defect.
The utility model other advantage, purpose and characteristic, a part will be set forth in the following description, and another
A part is for those of ordinary skill in the art by will be apparent to the investigation of following explanation or from the utility model
Implementation in acquire.It can realize and obtain by the structure particularly pointed out in the specification and claims of word and attached drawing
Obtain the utility model aim and advantage.
The utility model provides a kind of battery management system with Big Dipper terminal, wherein, the system comprises centres
Reason unit and current sensing circuit, relay, battery pack state detector, the DC/DC being connect with the central processing unit
Power module and Big Dipper terminal, the relay are connect with the current sensing circuit, the current sensing circuit, battery bag-like
State detector and DC/DC power modules are connect with battery pack；Wherein：
The current sensing circuit includes current sensor, first resistor, operational amplifier, 3rd resistor, the 4th resistance
And capacitance, wherein, the output terminal of the current sensor is connect with one end of the first resistor, the first resistor it is another
End is connect with the in-phase input end of the operational amplifier, and the output terminal of the operational amplifier and one end of the capacitance connect
It connects, the other end of the capacitance is connect with the inverting input of the operational amplifier；4th resistance and 3rd resistor string
In parallel with the capacitance after connection, one end of the 4th resistance is connect with the output terminal of the operational amplifier, the 4th electricity
The other end of resistance is connect with one end of the 3rd resistor, the other end ground connection of the 3rd resistor.
Preferably, the Big Dipper terminal includes communication module and alarm module, the communication module and alarm module and institute
State central processing unit connection.
Preferably, the battery pack state detector includes voltage sensor, temperature sensor and humidity sensor.
Preferably, the current sensor is CS040G type Hall current sensors, and the operational amplifier is LM324
Operational amplifier.
Preferably, the battery management system with Big Dipper terminal further includes automobile middle control interface, and the automobile middle control connects
Mouth is connect with the central processing unit.
Preferably, the battery management system with Big Dipper terminal further includes display unit, is used to show the battery
Voltage, temperature, humidity and the position of packet.
The utility model additionally provides a kind of electric vehicle, and the electric vehicle includes the band described in any of the above-described embodiment
The battery management system of Big Dipper terminal.
The utility model is configured with Big Dipper terminal for each battery pack, and electricity can be exported in real time by the Big Dipper terminal
The position of Chi Bao and status information so as to reality to inquiring state and the position of any one battery pack, and work as electricity
When pond management system detectio goes out battery pack and breaks down, can by the alarm module alert in Big Dipper terminal, with
Request operation management system is handled.The location information for the battery pack that operation management system is sent according to Big Dipper terminal can be very
The position of fast determining battery pack, convenient for quickly being handled battery pack, has provided great convenience to the user.In addition, pass through
Control of the central processing unit to the on off state of relay, realizes the effective protection to battery pack.The utility model is realized
Intelligent management and control to battery pack, and can and alarm, it is simple in structure, it is at low cost, there is good practical application effect.
Description of the drawings
Fig. 1 is the block diagram according to the utility model embodiment, battery management system with Big Dipper terminal.
Fig. 2 is the circuit diagram according to the utility model embodiment, current sensing circuit.
Specific embodiment
The utility model is described more fully with reference to the accompanying drawings, wherein illustrating the exemplary reality of the utility model
Apply example.
As shown in Figure 1, the battery management system with Big Dipper terminal that the utility model embodiment proposes includes central processing
Unit and the current sensing circuit being connect with the central processing unit, relay, battery pack state detector, DC/DC electricity
Source module and Big Dipper terminal, wherein, the relay is connect with the current sensing circuit, the current sensing circuit, battery
Packet state detector and DC/DC power modules are connect with battery pack.
The function of modules is described in detail below.
The current sensing circuit is used to acquire the electric current of battery pack, and the central processing unit is according to the current sense
The electric current of circuit acquisition determines the working condition of the battery pack.Specifically, the central processing unit is according to the electricity
The presence or absence of electric current of influenza slowdown monitoring circuit acquisition determines whether battery pack is in running order.
As shown in Fig. 2, the current sensing circuit includes current sensor U3, first resistor R5, operational amplifier U4, the
Three resistance R3, the 4th resistance R4 and capacitance C2, wherein, the output terminal of the current sensor U3 and the one of the first resistor R5
End connection, the other end of the first resistor R5 are connect with the in-phase input end (pin 5) of the operational amplifier U4, the fortune
The output terminal (pin 7) for calculating amplifier U4 is connect with one end of the capacitance C2, the other end and the operation of the capacitance C2
Inverting input (pin 6) connection of amplifier U4；The 4th resistance R4 and 3rd resistor R3 series connection after with the capacitance C2
Parallel connection, one end of the 4th resistance R4 are connect with the output terminal (pin 7) of the operational amplifier U4, the 4th resistance R4
The other end connect with one end of the 3rd resistor R3, the other end of 3rd resistor R3 ground connection.In addition, as shown in Fig. 2,
The pin 4 of the operational amplifier U4 connects+5V power supplys, and pin 11 is grounded.
Preferred embodiment according to the present utility model, the current sensor U3 are CS040G type Hall current sensors,
The operational amplifier U4 is LM324 operational amplifiers.The current sensing circuit that the utility model is proposed is compared to existing
Current sensing circuit for, have circuit structure it is simple, it is highly practical, it is at low cost the advantages of, convenient for putting into production use.
The relay is for protecting battery pack, specifically, being disconnected when battery pack is not at charged state
(that is, when battery pack is in running order, using the normally opened contact of relay) can protect the safety of battery pack itself in this way,
It avoids that accident occurs.The state of relay is by the central processing unit controls.Preferred embodiment according to the present utility model, institute
The capacity for stating relay is 3 times of the battery inclusion quantity, can reduce the contact resistance of contact to greatest extent in this way, more preferably
To battery pack provide protection.
The DC/DC power modules are connected with the central processing unit and battery pack, for whole for the band Big Dipper
The battery management system at end provides power supply.Wherein, the input terminal phase of the output terminal of the battery pack and the DC/DC power modules
Connection, to be powered by the battery pack as the DC/DC power modules.Preferably, it is sufficient in order to be provided for the system
Power supply, the power of the DC/DC power modules are more than twice of the total system power consumption.
The battery pack state detector is used to detect the working condition of battery pack, preferred implementation according to the present utility model
Example, the battery pack state detector includes voltage sensor, temperature sensor and humidity sensor, to acquire battery pack respectively
Voltage, temperature and humidity.The battery pack is connected with the central processing unit by CAN buses.
Big Dipper terminal, the Big Dipper terminal include communication module and alarm module (not shown), the communication module and report
Alert module is connect with the central processing unit.The communication module receives battery pack state-detection from the central processing unit
The status information (including voltage, temperature and humidity) of the battery pack of device acquisition, and by the location information of the battery pack, the electricity
The status information of Chi Bao is supplied to the operation management system together.The utility model is by Big Dipper terminal to operation management system
Position and the status information of battery pack are provided, the performance of Big Dipper terminal is effectively utilized, further simplifies system structure, is dropped
Low cost.
In addition, when central processing unit detects that battery pack breaks down, by the alarm module in Big Dipper terminal to
Operation management system alert, operation management system to be asked to be handled.Operation management system is according to Big Dipper terminal
The location information of the battery pack of transmission can determine the position of battery pack quickly, convenient for quickly being handled battery pack, be
User provides great convenience.
Another embodiment according to the present utility model, the battery management system with Big Dipper terminal further include automobile middle control
Interface, the automobile middle control interface are connect with the central processing unit.The central processing unit passes through the automobile middle control
Interface and automobile middle control exchange information.Specifically, at work, once central processing unit connects normally with automobile middle control
Afterwards, central processing unit will control relay to be closed, and battery pack is made to provide power to automobile；Once confirm automobile key not in work
Make state (that is, central processing unit and automobile middle control do not contact), central processing unit just controls relay to disconnect；Charging
When, the automobile middle control interface will be connected with the CAN mouths of charging equipment, by charging equipment order central processing unit controls relay
Device is closed.After charging, central processing unit controls relay disconnects.Preferably, the automobile middle control interface connects for CAN
Mouthful.
Another embodiment according to the present utility model, it is single that the battery management system with Big Dipper terminal further includes display
Member is used to show the state of the battery pack, specifically includes voltage, temperature, humidity and the position for showing the battery pack.
The utility model can be applied to electric vehicle, that is, the utility model also proposed a kind of electric vehicle, the electricity
Electrical automobile includes the battery management system with Big Dipper terminal described in any of the above-described embodiment.
More than content is only the preferred embodiment of the utility model, for those of ordinary skill in the art, according to this reality
With novel thought, there will be changes, the content of the present specification should not be construed as in specific embodiments and applications
Limitation to the utility model.
Claims (7)
1. a kind of battery management system with Big Dipper terminal, which is characterized in that the system comprises central processing unit, Yi Jiyu
Current sensing circuit, relay, battery pack state detector, DC/DC power modules and the north of the central processing unit connection
Struggle against terminal, and the relay connect with the current sensing circuit, the current sensing circuit, battery pack state detector and
DC/DC power modules are connect with battery pack；Wherein：
The current sensing circuit includes current sensor, first resistor, operational amplifier, 3rd resistor, the 4th resistance and electricity
Hold, wherein, the output terminal of the current sensor is connect with one end of the first resistor, the other end of the first resistor and
The in-phase input end connection of the operational amplifier, the output terminal of the operational amplifier are connect with one end of the capacitance, institute
The other end for stating capacitance is connect with the inverting input of the operational amplifier；4th resistance and 3rd resistor series connection after with
The capacitance is in parallel, and one end of the 4th resistance is connect with the output terminal of the operational amplifier, the 4th resistance it is another
One end is connect with one end of the 3rd resistor, the other end ground connection of the 3rd resistor.
2. system according to claim 1, which is characterized in that the Big Dipper terminal includes communication module and alarm module,
The communication module and alarm module are connect with the central processing unit.
3. system according to claim 1, which is characterized in that the battery pack state detector include voltage sensor,
Temperature sensor and humidity sensor.
4. system according to claim 1, which is characterized in that the current sensor is sensed for CS040G types Hall current
Device, the operational amplifier are LM324 operational amplifiers.
5. system according to claim 1, which is characterized in that the battery management system with Big Dipper terminal further includes vapour
Interface is controlled in vehicle, the automobile middle control interface is connect with the central processing unit.
6. system according to claim 1, which is characterized in that the battery management system with Big Dipper terminal further includes aobvious
Show unit, be used to show voltage, temperature, humidity and the position of the battery pack.
7. a kind of electric vehicle, the electric vehicle includes the battery management with Big Dipper terminal described in any of the above-described claim
System.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720377888.XU CN207549967U (en) | 2017-04-11 | 2017-04-11 | Battery management system and electric vehicle with Big Dipper terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720377888.XU CN207549967U (en) | 2017-04-11 | 2017-04-11 | Battery management system and electric vehicle with Big Dipper terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207549967U true CN207549967U (en) | 2018-06-29 |
Family
ID=62672341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720377888.XU Expired - Fee Related CN207549967U (en) | 2017-04-11 | 2017-04-11 | Battery management system and electric vehicle with Big Dipper terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207549967U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110001452A (en) * | 2019-03-07 | 2019-07-12 | 北京长城华冠汽车科技股份有限公司 | Electric vehicle and its battery operation monitoring system |
| CN110962627A (en) * | 2019-12-16 | 2020-04-07 | 湖南铃本环保科技有限公司 | Electric vehicle storage battery monitoring system based on GPS positioning and application thereof |
-
2017
- 2017-04-11 CN CN201720377888.XU patent/CN207549967U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110001452A (en) * | 2019-03-07 | 2019-07-12 | 北京长城华冠汽车科技股份有限公司 | Electric vehicle and its battery operation monitoring system |
| CN110962627A (en) * | 2019-12-16 | 2020-04-07 | 湖南铃本环保科技有限公司 | Electric vehicle storage battery monitoring system based on GPS positioning and application thereof |
| CN110962627B (en) * | 2019-12-16 | 2021-02-26 | 湖南铃本环保科技有限公司 | Electric vehicle storage battery monitoring system based on GPS positioning and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180629 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |