CN203688782U - Pure electric vehicle unit cell voltage independent acquisition system - Google Patents
Pure electric vehicle unit cell voltage independent acquisition system Download PDFInfo
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- CN203688782U CN203688782U CN201420052392.1U CN201420052392U CN203688782U CN 203688782 U CN203688782 U CN 203688782U CN 201420052392 U CN201420052392 U CN 201420052392U CN 203688782 U CN203688782 U CN 203688782U
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Abstract
The utility model relates to a pure electric vehicle unit cell voltage independent acquisition system. The voltage independent acquisition system comprises a power unit cell module and a cell management system central controller module. The power unit cell module is connected with a cell partial voltage module. The cell partial voltage module is connected with a multipath switch module. The multipath switch module is connected with an AD acquisition module and a processor module. The processor module is connected with a CAN bus isolation module. The CAN bus isolation module is connected with the cell management system central controller module. The AD acquisition module and the processor module are connected with a power supply isolation module. The beneficial effects of the voltage independent acquisition system are that, direct acquisition work of a high-voltage zone unit cell voltage can be achieved in a battery management system, and effective high-speed photo-coupled isolation is employed for low-voltage zone; real-time and rapid acquisition work of a high-voltage zone unit cell voltage is achieved and acquisition results are accurate; the voltage independent acquisition system has advantages of simple structure, high stability, high cost performance and the like.
Description
Technical field
The utility model relates to a kind of pure electric automobile battery cell voltage independence acquisition system.
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 in the battery management system of pure electric automobile, monomer voltage acquisition scheme is less at present, scheme complexity, cost is higher, cannot meet the demand of high volume applications.The means such as the utility model adopts voltage dividing potential drop, independently gathers, isolation transmission accurately gather battery cell voltage, possess simple in structure, good stability, cost performance high.
Utility model content
The purpose of this utility model is to provide a kind of pure electric automobile battery cell voltage independence acquisition system, to overcome prior art above shortcomings.
The purpose of this utility model is to be achieved through the following technical solutions:
A kind of pure electric automobile battery cell voltage independence acquisition system, comprise electrokinetic cell monomer module and battery management system central controller module, described electrokinetic cell monomer module connects battery division module, described battery division module connects multi-way switch module, described multi-way switch module connects AD acquisition module and processor module, described processor module connects CAN Bus isolation module, and described CAN Bus isolation module is connected with battery management system central controller module; On described AD acquisition module and processor module, be connected with power isolation module.
Further, the large resistance divider resistance of high precision that described battery division module comprises three serial connections.
Further, described multi-way switch module comprises CD4051 chip and peripheral circuit.
Further, described AD acquisition module comprises 9S08DZ60 chip and peripheral circuit.
Further, described CAN Bus isolation module comprises TJA1043 chip and isolation high-speed light lotus root.
The beneficial effects of the utility model are: can realize in battery management system, the direct collecting work of higher-pressure region battery cell voltage, adopt high-speed light lotus root effectively to isolate with low-pressure area, realize the collecting work real-time to higher-pressure region battery cell voltage, collection result is accurate, possess simple in structure, good stability, cost performance high.
Accompanying drawing explanation
With reference to the accompanying drawings the utility model is described in further detail below.
Fig. 1 is the structured flowchart of pure electric automobile battery cell voltage independence acquisition system described in the utility model embodiment;
Fig. 2 is the multi-way switch module diagram of pure electric automobile battery cell voltage independence acquisition system described in the utility model embodiment.
In figure:
1, electrokinetic cell monomer module; 2, battery division module; 3, multi-way switch module; 4, AD acquisition module; 5, processor module; 6, CAN Bus isolation module; 7, battery management system central controller module; 8, power isolation module; 9, CD4051 chip.
Embodiment
As shown in Figure 1, a kind of pure electric automobile battery cell voltage independence acquisition system described in the utility model embodiment, comprise electrokinetic cell monomer module 1 and battery management system central controller module 7, described electrokinetic cell monomer module 1 connects battery division module 2, described battery division module 2 connects multi-way switch module 3, described multi-way switch module 3 connects AD acquisition module 4 and processor module 5, described processor module 5 connects CAN Bus isolation module 6, and described CAN Bus isolation module 6 is connected with battery management system central controller module 7; On described AD acquisition module 4 and processor module 5, be connected with power isolation module 8.
As shown in Figure 2, the large resistance divider resistance of high precision that described battery division module 2 comprises three serial connections.Described multi-way switch module 3 comprises CD4051 chip 9 and peripheral circuit.Described AD acquisition module 4 comprises 9S08DZ60 chip and peripheral circuit.Described CAN Bus isolation module 6 comprises TJA1043 chip and isolation high-speed light lotus root.
Pure electric automobile battery cell voltage independence acquisition system described in the utility model embodiment has following function: utilize electrokinetic cell monomer module 1 between battery cell voltage collection circuit and battery cell, to be connected in series the divider resistance of 3 large resistances of high precision, do large resistance resistive isolation, make to be connected in series one group of larger resistance between the both positive and negative polarity of battery cell, improve the security that gathers higher-pressure region battery cell voltage.Then utilize multi-way switch module 3 that multiple battery cell voltage is accessed respectively to AD acquisition module 4 and processor module 5, the supply voltage of AD acquisition module 4 and processor module 5 is provided by an insulating power supply module, can withstand voltage 1500V.Battery cell voltage converts CAN bus data to by AD acquisition module 4 and processor module 5, and is transferred in CAN bus by high-speed CAN bus isolation module 6, for the central processing controller Real-time Collection of battery management system.
The principle of work of the pure electric automobile battery cell voltage independence acquisition system described in the utility model embodiment is as follows: draw a road collection wire harness from the both positive and negative polarity of multichannel battery cell, in access battery division module 2, by doing current limliting isolation between the large resistance resistance in battery division module 2 and battery cell, avoid occurring in operating process the accident of battery cell short circuit.And do preliminary isolation.Then voltage signal is by the handoff functionality of multi-way switch module 3, accessing respectively AD acquisition module 4 processes, be converted to CAN bus data by processor module 5, and be transferred in CAN bus by CAN Bus isolation module 6, for battery management system central controller module 7 acquisition process of battery management system.
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 (5)
1. a pure electric automobile battery cell voltage independence acquisition system, comprise electrokinetic cell monomer module (1) and battery management system central controller module (7), it is characterized in that: described electrokinetic cell monomer module (1) connects battery division module (2), described battery division module (2) connects multi-way switch module (3), described multi-way switch module (3) connects AD acquisition module (4) and processor module (5), described processor module (5) connects CAN Bus isolation module (6), described CAN Bus isolation module (6) is connected with battery management system central controller module (7), on described AD acquisition module (4) and processor module (5), be connected with power isolation module (8).
2. a kind of pure electric automobile battery cell voltage independence acquisition system according to claim 1, is characterized in that: described battery division module (2) comprises the large resistance divider resistance of the high precision of three serial connections.
3. a kind of pure electric automobile battery cell voltage independence acquisition system according to claim 2, is characterized in that: described multi-way switch module (3) comprises CD4051 chip (9) and peripheral circuit.
4. a kind of pure electric automobile battery cell voltage independence acquisition system according to claim 3, is characterized in that: described AD acquisition module (4) comprises 9S08DZ60 chip and peripheral circuit.
5. a kind of pure electric automobile battery cell voltage independence acquisition system according to claim 4, is characterized in that: described CAN Bus isolation module (6) comprises TJA1043 chip and isolation high-speed light lotus root.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420052392.1U CN203688782U (en) | 2014-01-27 | 2014-01-27 | Pure electric vehicle unit cell voltage independent acquisition system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420052392.1U CN203688782U (en) | 2014-01-27 | 2014-01-27 | Pure electric vehicle unit cell voltage independent acquisition system |
Publications (1)
| Publication Number | Publication Date |
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| CN203688782U true CN203688782U (en) | 2014-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420052392.1U Expired - Fee Related CN203688782U (en) | 2014-01-27 | 2014-01-27 | Pure electric vehicle unit cell voltage independent acquisition system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109407012A (en) * | 2018-12-05 | 2019-03-01 | 上海翌芯电子科技有限公司 | A kind of battery management system and battery management method |
| CN110729502A (en) * | 2019-10-24 | 2020-01-24 | 武汉格罗夫氢能汽车有限公司 | Information acquisition system of proton exchange membrane fuel cell engine |
-
2014
- 2014-01-27 CN CN201420052392.1U patent/CN203688782U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109407012A (en) * | 2018-12-05 | 2019-03-01 | 上海翌芯电子科技有限公司 | A kind of battery management system and battery management method |
| CN110729502A (en) * | 2019-10-24 | 2020-01-24 | 武汉格罗夫氢能汽车有限公司 | Information acquisition system of proton exchange membrane fuel cell engine |
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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 |