CN205004413U - Lithium battery control system - Google Patents
Lithium battery control system Download PDFInfo
- Publication number
- CN205004413U CN205004413U CN201520761187.7U CN201520761187U CN205004413U CN 205004413 U CN205004413 U CN 205004413U CN 201520761187 U CN201520761187 U CN 201520761187U CN 205004413 U CN205004413 U CN 205004413U
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- China
- Prior art keywords
- isolation module
- lithium battery
- module
- lithium cell
- battery
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a lithium battery control system, including the lithium cell, battery monitoring module A, keep apart module A, the voltage control circuit, microcontroller and vehicle control unit, the lithium cell includes the lithium cell A of series connection, lithium cell B, lithium cell C and lithium cell D, lithium cell A passes through battery monitoring module A and connects isolation module A, lithium cell B passes through battery monitoring module B and connects isolation module B, lithium cell C passes through battery monitoring module C and connects isolation module C, lithium cell D passes through battery monitoring module D and connects isolation module D. The utility model discloses lithium battery control system adopts ADuM1250 to realize keeping apart, and the common ground problem between each lithium cell and each communication device is solved completely to the simplified circuit greatly, improves lithium battery protection ability and battery management system's fail safe nature.
Description
Technical field
The utility model relates to a kind of control system, specifically a kind of lithium battery control system.
Background technology
Hybrid vehicle, electric automobile and electric bicycle etc., using dynamic lithium battery as the vehicles of major impetus, are more and more subject to people's attention because of advantages such as its environmental protections.Its vehicle performance relies on self dynamic lithium battery to a great extent, dynamic lithium battery management system then to the fail safe of lithium battery, and and the communication aspects of Full Vehicle System play crucial function served as bridge.
Battery monitor system, by gathering each power battery information, sends the total processing unit of onboard system to by after the process of each dynamic lithium battery group control chip.In this course, in order to ensure the signal disturbing that control chip is not collected, and the destruction to control chip such as the over-voltage and over-current preventing dynamic lithium battery group from producing, therefore, need to make two parts circuit keep isolation on electrically, this just needs the VDD-to-VSS using isolator to float to connect both sides.In most dynamic lithium battery group monitoring module, module controls chip adopts bidirectional communications bus to be connected with the battery cell monitoring chip of dynamic lithium battery, to reduce connection, makes system more succinct.
Battery cell monitoring part detects the information such as power battery voltage, electric current and temperature, is communicated with power battery pack module control chip by bidirectional communications bus.Due to lithium battery overheated, overcharge/condition such as overdischarge stream, vibration, extruding under may cause shorter battery life so that damage, even can catch fire, the dangerous situation such as blast, therefore, its safety protective circuit is essential.Wherein, the fail safe for management system key components is particularly important, not only can guarantee the normal work of circuit main control chip, also can be user and provides safety guarantee.Therefore, all buses communicated to connect with control chip have all done insulation blocking.
In existing product design, traditional optical coupler isolation scheme can only be adopted, unique way of isolation two-way signaling cushions and isolates launching and receiving signal, isolate the discrete component that a road two-way signaling then at least needs two optical couplers and outside, to realize signal and the completely isolated circuit design of clock then needs No. four optical couplers to realize, this adds increased cost and circuit board space, and need to adopt a large amount of extra discrete components, add the complexity of circuit design, cause the prolongation of development time and the instability of circuit performance.
Utility model content
The purpose of this utility model is to provide a kind of lithium battery control system, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of lithium battery control system, comprise lithium battery, battery cell monitoring modules A, isolation module A, voltage regulator circuit, microcontroller and entire car controller, described lithium battery comprises the lithium battery A be connected in series, lithium battery B, lithium battery C and lithium battery D, lithium battery A connects isolation module A by battery cell monitoring modules A, lithium battery B connects isolation module B by battery cell monitoring module B, lithium battery C connects isolation module C by battery cell monitoring module C, lithium battery D connects isolation module D by battery cell monitoring module D, the isolation module A other end connects the isolation module B other end respectively, the isolation module C other end, the isolation module D other end and microcontroller, microcontroller also connects isolation module F respectively, isolation module G and isolation module E, the isolation module E other end is connected to lithium battery D positive pole by voltage regulator circuit, the isolation module F other end connects host computer, the isolation module G other end connects entire car controller, isolation module A ~ G all adopts ADuM1250.
As further program of the utility model: be connected by spi bus between described microcontroller with isolation module E.
As further program of the utility model: be connected by bidirectional communications bus between described microcontroller with isolation module A ~ D.
As further program of the utility model: be connected by CAN between described microcontroller with isolation module G.
As the utility model further scheme: described isolation module F is connected by RS232 with between host computer.
Compared with prior art; the beneficial effects of the utility model are: the utility model lithium battery control system adopts ADuM1250 to realize isolation; greatly simplify circuit; solve the common ground problem between each lithium battery and each communication device completely, improve the security reliability of li-ion cell protection ability and battery management system.
Accompanying drawing explanation
Fig. 1 is the circuit structure block diagram of lithium battery control system.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, in the utility model embodiment, plant lithium battery control system, comprise lithium battery, battery cell monitoring modules A, isolation module A, voltage regulator circuit, microcontroller and entire car controller, lithium battery comprises the lithium battery A be connected in series, lithium battery B, lithium battery C and lithium battery D, lithium battery A connects isolation module A by battery cell monitoring modules A, lithium battery B connects isolation module B by battery cell monitoring module B, lithium battery C connects isolation module C by battery cell monitoring module C, lithium battery D connects isolation module D by battery cell monitoring module D, the isolation module A other end connects the isolation module B other end respectively, the isolation module C other end, the isolation module D other end and microcontroller, microcontroller also connects isolation module F respectively, isolation module G and isolation module E, the isolation module E other end is connected to lithium battery D positive pole by voltage regulator circuit, the isolation module F other end connects host computer, the isolation module G other end connects entire car controller, isolation module A ~ G all adopts ADuM1250.
Be connected by spi bus between microcontroller with isolation module E.
Be connected by bidirectional communications bus between microcontroller with isolation module A ~ D.
Be connected by CAN between microcontroller with isolation module G.
Isolation module F is connected by RS232 with between host computer.
Operation principle of the present utility model is: refer to Fig. 1, ADuM1250 is a Magnetic isolation device without latch that can realize two-way signaling isolation, support hot plug, be specifically applied to the I2C of isolation cost sensitivity, SMBUS, the bidirectional communications bus such as PMBUS and 1-wire, eliminate the unnecessary trouble that light-coupled isolation need be divided into independent reception or transmission signal to bring two-way signaling, circuit board space is made to reduce 80%, containing schmidt shaping circuit in the imput output circuit of ADuM1250, can directly be connected transmit high-speed signals with various main control chip and waveform problems need not be worried, relative to the two-way buffer circuit of optocoupler, it is little that ADuM1250 has volume, low in energy consumption, the advantage that peripheral circuit is extremely simply etc. absolute.
ADuM1250 working temperature 105 DEG C, has warm connection function, supports the message transmission rate up to 1Mbps, provides the isolation voltage of 2.5KVrms/min.All be integrated in one owing to not needing additional element and all buffer memorys and Signal Regulation and encapsulate inside, therefore, use ADuM1250 reduce design complexity and shorten the research and development time.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technical scheme in each embodiment also through appropriately combined, can form other execution modes that it will be appreciated by those skilled in the art that.
Claims (5)
1. a lithium battery control system, comprise lithium battery, battery cell monitoring modules A, isolation module A, voltage regulator circuit, microcontroller and entire car controller, it is characterized in that, described lithium battery comprises the lithium battery A be connected in series, lithium battery B, lithium battery C and lithium battery D, lithium battery A connects isolation module A by battery cell monitoring modules A, lithium battery B connects isolation module B by battery cell monitoring module B, lithium battery C connects isolation module C by battery cell monitoring module C, lithium battery D connects isolation module D by battery cell monitoring module D, the isolation module A other end connects the isolation module B other end respectively, the isolation module C other end, the isolation module D other end and microcontroller, microcontroller also connects isolation module F respectively, isolation module G and isolation module E, the isolation module E other end is connected to lithium battery D positive pole by voltage regulator circuit, the isolation module F other end connects host computer, the isolation module G other end connects entire car controller, isolation module A ~ G all adopts ADuM1250.
2. lithium battery control system according to claim 1, is characterized in that, is connected between described microcontroller with isolation module E by spi bus.
3. lithium battery control system according to claim 1, is characterized in that, is connected between described microcontroller with isolation module A ~ D by bidirectional communications bus.
4. lithium battery control system according to claim 1, is characterized in that, is connected between described microcontroller with isolation module G by CAN.
5. lithium battery control system according to claim 1, is characterized in that, described isolation module F is connected by RS232 with between host computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520761187.7U CN205004413U (en) | 2015-09-29 | 2015-09-29 | Lithium battery control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520761187.7U CN205004413U (en) | 2015-09-29 | 2015-09-29 | Lithium battery control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205004413U true CN205004413U (en) | 2016-01-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520761187.7U Expired - Fee Related CN205004413U (en) | 2015-09-29 | 2015-09-29 | Lithium battery control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205004413U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105743177A (en) * | 2016-04-14 | 2016-07-06 | 电子科技大学 | Power supply management system for exoskeleton robot |
| CN109412629A (en) * | 2018-10-30 | 2019-03-01 | 浙江特康电子科技有限公司 | A kind of communication system of series-connected cell packet |
-
2015
- 2015-09-29 CN CN201520761187.7U patent/CN205004413U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105743177A (en) * | 2016-04-14 | 2016-07-06 | 电子科技大学 | Power supply management system for exoskeleton robot |
| CN105743177B (en) * | 2016-04-14 | 2018-11-06 | 电子科技大学 | A kind of power-supply management system of exoskeleton robot |
| CN109412629A (en) * | 2018-10-30 | 2019-03-01 | 浙江特康电子科技有限公司 | A kind of communication system of series-connected cell packet |
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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: 20160127 Termination date: 20190929 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |