CN203688657U - Busbar current magnetic isolation and acquisition circuit in pure electric vehicle battery management system - Google Patents
Busbar current magnetic isolation and acquisition circuit in pure electric vehicle battery management system Download PDFInfo
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- CN203688657U CN203688657U CN201420051944.7U CN201420051944U CN203688657U CN 203688657 U CN203688657 U CN 203688657U CN 201420051944 U CN201420051944 U CN 201420051944U CN 203688657 U CN203688657 U CN 203688657U
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- magnetic isolation
- management system
- battery management
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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Abstract
The utility model relates to a busbar current magnetic isolation and acquisition circuit in a pure electric vehicle battery management system. The circuit comprises a battery pack busbar. The battery pack busbar is connected with a magnetic isolation Hall current sensor module. The output end of the magnetic isolation Hall current sensor module is connected with a signal amplification module. The output end of the signal amplification module is connected with an AD acquisition module of a central processing unit module. The output end of the central processing unit module is connected with a CAN bus communication module. The output end of the CAN bus communication module is connected with a battery pack bus monitoring module. The beneficial effects of the circuit are that, effective isolation of high-voltage zone busbar current acquisition, low-voltage zone AD acquisition and a processing circuit can be achieved in a battery management system; real-time and rapid acquisition work of a high-voltage zone busbar current is achieved and acquisition results are accurate; the circuit has advantages of simple structure, high stability, high cost performance and the like.
Description
Technical field
The utility model relates to a kind of battery management system of pure electric automobile median generatrix electric current magnetic isolation Acquisition Circuit.
Background technology
At present, due to constantly climbing to a higher point of the pollution of fuel-engined vehicle to environment and International Petroleum Price, pure electric automobile is as a branch of New Green Energy source technology, have that zero-emission, noise are low, structure is relatively simple, can realize transportation and energy's advantages such as diversification of originating, by people are paid close attention to, the market share also increases year by year gradually.But the battery management system median generatrix current acquisition scheme of pure electric automobile is less at present, scheme complexity, cost is higher, cannot meet the demand of high volume applications.
Utility model content
The purpose of this utility model is to provide a kind of battery management system of pure electric automobile median generatrix electric current magnetic isolation Acquisition Circuit, to overcome currently available technology above shortcomings.
The purpose of this utility model is to be achieved through the following technical solutions:
A kind of battery management system of pure electric automobile median generatrix electric current magnetic isolation Acquisition Circuit, comprise power brick bus, described power brick bus is connected with magnetic isolation Hall current sensor module, described magnetic isolation Hall current sensor module output terminal is connected with signal amplification module, described signal amplification module output terminal is connected with the AD acquisition module of CPU (central processing unit) module, described CPU (central processing unit) module output terminal is connected with CAN bus communication module, and described CAN bus communication module output terminal is connected with power brick monitoring bus module.
Further, described magnetic isolation Hall current sensor module is connected to form by Hall element and peripheral circuit.
Further, described signal amplification module is connected to form by chip OPA2350 and peripheral circuit.
Further, described CPU (central processing unit) module is connected to form by single-chip microcomputer SPC5643L processor and peripheral circuit.
The beneficial effects of the utility model are: can realize in battery management system, effective isolation of the AD sampling and processing circuit of higher-pressure region bus current collection and low-pressure area, realize the collecting work real-time to higher-pressure region bus current, collection result is accurate, possess simple in structure, good stability, cost performance high.
Brief description of the drawings
With reference to the accompanying drawings the utility model is described in further detail below.
Fig. 1 is the circuit structure block diagram of the battery management system of pure electric automobile median generatrix electric current magnetic isolation Acquisition Circuit described in the utility model embodiment;
Fig. 2 is the circuit theory diagrams of the magnetic isolation Hall current sensor module of the battery management system of pure electric automobile median generatrix electric current magnetic isolation Acquisition Circuit described in the utility model embodiment;
Fig. 3 is the circuit theory diagrams of the signal amplification module of the battery management system of pure electric automobile median generatrix electric current magnetic isolation Acquisition Circuit described in the utility model embodiment;
Fig. 4 is the circuit theory diagrams of the CAN bus communication module of the battery management system of pure electric automobile median generatrix electric current magnetic isolation Acquisition Circuit described in the utility model embodiment;
Fig. 5 is the battery management system of pure electric automobile median generatrix electric current magnetic isolation AD acquisition module of Acquisition Circuit and the circuit theory diagrams of CPU (central processing unit) module described in the utility model embodiment.
In figure:
1, power brick bus; 2, magnetic isolation Hall current sensor module; 3, signal amplification module; 4, CPU (central processing unit) module; 5, AD acquisition module; 6, CAN bus communication module; 7, power brick monitoring bus module.
Embodiment
As Figure 1-5, a kind of battery management system of pure electric automobile median generatrix electric current magnetic isolation Acquisition Circuit described in the utility model embodiment, comprise power brick bus 1, described power brick bus 1 is connected with magnetic isolation Hall current sensor module 2, described magnetic isolation Hall current sensor module 2 output terminals are connected with signal amplification module 3, described signal amplification module 3 output terminals are connected with the AD acquisition module 5 of CPU (central processing unit) module 4, described CPU (central processing unit) module 4 output terminals are connected with CAN bus communication module 6, described CAN bus communication module 6 output terminals are connected with power brick monitoring bus module 7, described magnetic isolation Hall current sensor module 2 is connected to form by Hall element and peripheral circuit, described signal amplification module 3 is connected to form by chip OPA2350 and peripheral circuit, described CPU (central processing unit) module 4 is connected to form by single-chip microcomputer SPC5643L processor and peripheral circuit.
When concrete use, the design that the isolation of battery management system of pure electric automobile high-pressure section bus current magnetic gathers comprises magnetic isolation Hall current sensor module, signal amplification module, AD acquisition module and a few part compositions of CPU (central processing unit) module.Magnetic isolation Hall current sensor module is made up of Hall element and peripheral circuit, and signal amplification module is made up of chip OPA2350 and peripheral circuit.AD acquisition module and CPU (central processing unit) are made up of 32 single-chip microcomputer SPC5643L processors of Freescale automotive grade double-core and peripheral circuit.
Magnetic is isolated to Hall element and be inserted on power brick bus, utilize electromagnetic induction principle to produce the voltage signal of a 0-5V, well solve higher-pressure region and low-pressure area signal isolation collection.The voltage signal of input is connected to the AD acquisition channel in CPU (central processing unit) module after signal amplification module is processed.Complete the collecting work of bus current, after become numerical information to be transferred in CAN bus by CAN bus module through CPU (central processing unit) module converts, for the central processing controller Real-time Collection of battery management system.
The utility model mainly solves the difficult point that current battery management system of pure electric automobile mesohigh part bus current gathers, the technical matters solving is the difficulty that the isolation of battery management system of pure electric automobile high-pressure section bus current gathers, relate to a kind of battery management system of pure electric automobile median generatrix electric current magnetic isolation acquisition scheme, adopt the means such as bus current magnetic isolation collection, signal amplification accurately to gather bus current collection, possess simple in structure, good stability, cost performance high.
The utility model is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present utility model; no matter but do any variation in its shape or structure; every have identical with a application or akin technical scheme, within all dropping on protection domain of the present utility model.
Claims (4)
1. a battery management system of pure electric automobile median generatrix electric current magnetic isolation Acquisition Circuit, comprise power brick bus (1), it is characterized in that: described power brick bus (1) is connected with magnetic isolation Hall current sensor module (2), described magnetic isolation Hall current sensor module (2) output terminal is connected with signal amplification module (3), described signal amplification module (3) output terminal is connected with the AD acquisition module (5) of CPU (central processing unit) module (4), described CPU (central processing unit) module (4) output terminal is connected with CAN bus communication module (6), described CAN bus communication module (6) output terminal is connected with power brick monitoring bus module (7).
2. battery management system of pure electric automobile median generatrix electric current magnetic isolation Acquisition Circuit according to claim 1, is characterized in that: described magnetic isolation Hall current sensor module (2) is connected to form by Hall element and peripheral circuit.
3. battery management system of pure electric automobile median generatrix electric current magnetic isolation Acquisition Circuit according to claim 2, is characterized in that: described signal amplification module (3) is connected to form by chip OPA2350 and peripheral circuit.
4. battery management system of pure electric automobile median generatrix electric current magnetic isolation Acquisition Circuit according to claim 3, is characterized in that: described CPU (central processing unit) module (4) is connected to form by single-chip microcomputer SPC5643L processor and peripheral circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420051944.7U CN203688657U (en) | 2014-01-27 | 2014-01-27 | Busbar current magnetic isolation and acquisition circuit in pure electric vehicle battery management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420051944.7U CN203688657U (en) | 2014-01-27 | 2014-01-27 | Busbar current magnetic isolation and acquisition circuit in pure electric vehicle battery management system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203688657U true CN203688657U (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420051944.7U Expired - Fee Related CN203688657U (en) | 2014-01-27 | 2014-01-27 | Busbar current magnetic isolation and acquisition circuit in pure electric vehicle battery management system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203688657U (en) |
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2014
- 2014-01-27 CN CN201420051944.7U patent/CN203688657U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20220127 |
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| CF01 | Termination of patent right due to non-payment of annual fee |