CN201174602Y - Digital communication interface suitable between multiple series and parallel cell packs - Google Patents
Digital communication interface suitable between multiple series and parallel cell packs Download PDFInfo
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- CN201174602Y CN201174602Y CNU2008200084242U CN200820008424U CN201174602Y CN 201174602 Y CN201174602 Y CN 201174602Y CN U2008200084242 U CNU2008200084242 U CN U2008200084242U CN 200820008424 U CN200820008424 U CN 200820008424U CN 201174602 Y CN201174602 Y CN 201174602Y
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- interface
- numeral
- battery pack
- battery
- signal
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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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Abstract
The utility model discloses a digital communication interface suitable for being used between multiple serial-parallel battery packs. An universal asynchronous sequence transmission interface is used, an uplink and downlink circuit constructed by a voltage isolation module as well as a battery core low-voltage protection signal and an overvoltage protection signal in a digital interface which is directly connected to each battery pack in series, and a receiving and transmission signal transmitted by an universal asynchronous sequence and a compulsory wakeup signal used to awake a battery pack protection board microprocessor are matched at the same time. A constructed battery monitoring system allows battery packs with the same specification to directly serially connect digital signals needed by monitoring batteries, is convenient for the serial-parallel connection use of the multiple battery packs, can randomly replace necessary battery packs during the maintenance, and can greatly reduce the cost for electric power design and maintenance of the batteries.
Description
[technical field]
The utility model is the numeral communication interface that is applicable between many strings and battery pack about a kind of, be meant a kind of can be applicable in the battery monitor system especially, can allow the battery pack of same specification directly to be connected in series the needed digital signal of monitoring battery, the string of convenient many battery pack and the numeral that connects use are linked up interface.
[background technology]
In the battery of existing motor vehicle uses, usually can use numeral and link up interface, in order to control as charge and discharge in the electric motor car electric power system, and the residual electric weight of monitoring battery and other working condition.But in the process of motor vehicle development, lifting gradually along with the battery capacity and the power of battery, under the consideration of best battery capacity combination, the use of many strings and battery pack, just like to become the inexorable trend of motor vehicle power system development, and the replacing in many strings and the battery pack is safeguarded, also becomes one of project that digital monitor system must consider.The previous digital interface patent relevant with battery management, in the digital information integrated interface, use is applicable to that Control Network connects the single-line type (One-Wire of (Network Connection) or starlike connection (Star Connection) more, Maxim/HDQ Bus, Ti) or two-wire system (Smart Management Bus, Intel/CAN-Bus, Controller Area Network) coffret, though the coffret of this class is not main, puzzlement from (Master/Slave) setting, but in use unavoidable the generation gone here and there more, and the transmission delay problem in the system, and the problems such as Call Collision (Collision) that transmission delay produced.In addition in the use of multi-string battery group, because the lifting of cell voltage, the interface voltage position of each battery pack is accurate different, and this also is the emphasis that must consider in many strings and battery pack.
Therefore, provide a kind of and be applicable to the string of many battery pack and connect use, no transmission delay problem, being convenient for changing numeral between many strings of being applicable to of maintenance and battery pack, to link up interface real in necessary.
[summary of the invention]
The purpose of this utility model promptly is to provide a kind of numeral communication interface that is applicable between many strings and battery pack; be to solve many strings and battery pack when digital ditch messenger connects; because the baffle work reference voltage difference of battery pack during serial connection; and rising along with serial connection voltage; work reference voltage difference may be up to three, five hectovolt spies, and existing netted connection network or starlike connection network can't use.More, when many groups connect, be easy to generate the situation of transmission collision owing in the call transmission pattern of netted connection network or starlike connection network, be not predetermined master slave mode in the transmission mostly.Consider the work of battery protecting plate again, do not using interruption to disturb under the requirement of battery protecting plate to battery cell monitoring, majority requires the netted connection network or the starlike connection network of real-time response, and the numeral that all is not suitable for many strings and battery pack is linked up interface.
Technology contents of the present utility model is to use universal asynchronous sequence transmission interface (UniversalAsynchronous Receiver/Transmitter; RS-232); and utilize upload (Up-Link) of the construction of voltage isolation assembly institute to reach biography (Down-Link) circuit down; directly the serial connection each battery pack digital interface in battery under-voltage protection signal (Low Voltage Protection; LVP); overvoltage protection signal (Over Voltage Protection; OVP); the reception of universal asynchronous sequence transmission and transmission signals, and the pressure wake-up signal that is used to wake up battery pack protection plate microprocessor (MCU).Because the built-in universal asynchronous sequence transmission interface of microprocessor, itself has the transmit buffering design, the transmission delay time of the voltage isolation assembly of many serial connections, can't cause the mistake in the signal transmission, as long as consider that in circuit design signal waveform rises (Rising Time), decline (Falling Time) temporal differences, or use and to exempt the problem in the transmission than low transmission rate (Baud Rate).
Use simple thumb-acting switch (DIP Switches) as identiflication number with a string and battery pack; limited amount recognition coding; make monitoring overall electric power system to do any predefined action to recognition coding; only need limited coding is done P-SCAN, can finish the setting work of all battery protection systems.More, when the maintenance operation needs, only need setting, just can finish the replacing operation of battery module, significantly reduce the technology burden of maintenance operation according to original thumb-acting switch because coded system is the visible thumb-acting switch of human eye.
After each battery protecting plate was finished recognition coding, supervisory control system can be called out the baffle of single battery module, and the baffle of corresponding recognition coding is then answered predefined module data of loopback and status signal.Link up in the interface in the numeral that this paper narrated; also comprise overvoltage protection signal (Over Voltage Protection commonly used in the general battery management system; OVP); and under-voltage protection signal (Low Voltage Protection; LVP); different is that overvoltage protection signal and under-voltage protection signal are status signals; in Interface design, just allow these two groups of status signals show at next stage in regular turn; in use as long as arbitrary battery module is unusual; this two states signal just can be passed to the afterbody battery module, and is presented on the digital interface of afterbody.
The numeral communication interface that is applicable between many strings and battery pack provided by the utility model when comparing mutually with other prior art, has more following advantage:
The utility model is applicable to the numeral communication interface between many strings and battery pack, can be established in battery monitor system, can allow the battery pack of same specification directly to be connected in series the needed digital signal of monitoring battery.
The utility model is applicable to that the numeral between many strings and battery pack links up interfaces, can allow many battery pack string and connect use easily, can change necessary battery pack arbitrarily in maintenance, the cost that can significantly reduce the battery electric power design and safeguard.
The utility model is applicable to that the numeral between many strings and battery pack links up interfaces, can significantly reduce existing many battery pack string and connect circuit complexity when using, and the circuit area that numeral is linked up interface is effectively reduced.
[description of drawings]
Fig. 1 is the circuit diagram of uploading that the utlity model has voltage isolation;
Fig. 2 is the following road schematic diagram that conducts electricity that the utlity model has voltage isolation;
Fig. 3 links up the enforcement configuration diagram of interface for this is applicable to the numeral between many strings and battery pack;
Fig. 4 links up the battery protecting plate schematic diagram of interface for this is applicable to the numeral between many strings and battery pack;
Fig. 5 links up the enforcement schematic diagram of Application of Interface on the battery protecting plate of four groups of serial connections for this is applicable to the numeral between many strings and battery pack.
[embodiment]
See also Fig. 1, for the utlity model has the circuit diagram of uploading of voltage isolation, by among the figure as can be known, this is uploaded, and employed voltage isolation assembly 13 is an optical coupler (Photo-Coupler) in the design of (Up-Link) circuit 11, because universal asynchronous sequence transmission signal at the voltage level of inactive state is " 1 ", for effectively reducing the power consumption in static, in this circuit, used anti-phase interface signal, just shown signal and actual signal differs 180 ° on the interface.Voltage isolation assembly 13 in the circuit also can make optical coupling field-effect transistor (Photo-MOSFET) or photo-coupled relay (Photo-Relay) reach similar circuit purpose.Logical circuit 14 in the circuit is except standard logic lock commonly used, by bipolar transistor (Bio-Polar Transistor, BJT), field-effect transistor (Field-Effect Transistor, FET) or metal oxide film field-effect transistor (Metal-Oxide-Semiconductor Field-Effect Transistor, MOSFET) the simple logic circuit of institute's construction, circuit size that more can the effective simplification digital interface.
See also Fig. 2, for the utlity model has the following road schematic diagram that conducts electricity of voltage isolation, by among the figure as can be known, this has following biography (Down-Link) circuit 12 of voltage isolation, its circuits built almost is the antimetrical circuit that figure one uploads circuit, just on the correctness of considering the transmission signal, done rational correction for the logical circuit in the interface.
See also Fig. 3; for being applicable to the numeral between many strings and battery pack, the utility model links up the enforcement configuration diagram of interface; by among the figure as can be known; numeral of the present utility model is linked up interface 1; be to be to use universal asynchronous sequence transmission interface (Universal Asynchronous Receiver/Transmitter; RS-232); and utilize 13 construction of voltage isolation assembly upload circuit 11 and under the road 12 that conducts electricity; directly the serial connection each battery pack digital interface in battery under-voltage protection signal (Low Voltage Protection; LVP) 15; overvoltage protection signal (Over Voltage Protection; OVP) 16; the reception of universal asynchronous sequence transmission and transmission signals 17; 18, and the pressure wake-up signal 19 that is used to wake up battery pack protection plate microprocessor (MCU) 20.Because the universal asynchronous sequence transmission interface that microprocessor 20 is built-in, itself has the transmit buffering design, the transmission delay time of the voltage isolation assembly 13 of many serial connections, can't cause the mistake in the signal transmission, as long as consider that in circuit design signal waveform rises (Rising Time), decline (Falling Time) temporal differences, or use and to exempt the problem in the transmission than low transmission rate (Baud Rate).The numeral between many strings and battery pack that is applicable to that the utility model proposed is linked up interface, is the use owing to voltage isolation assembly 13, and interface signal can be imported by the signal source of other different voltage levels, and adds signal remittance abroad at the corresponding levels.
See also Fig. 4; for being applicable to the numeral between many strings and battery pack, the utility model links up the battery protecting plate schematic diagram of interface; by among the figure as can be known; the utility model is owing to use the asynchronous sequence coffret to link up interface as numeral; the buffer rcgister that microprocessor 20 is built-in; what can make program code writes calculation in order to monitoring battery state and balancing for paying the utmost attention to, and not linked up by numeral and interrupts the interference that (Interrupt) requires.
See also Fig. 5; for being applicable to the numeral between many strings and battery pack, the utility model links up the enforcement schematic diagram of Application of Interface on the battery protecting plate of four groups of serial connections; by among the figure as can be known; the utility model digital interface 1 is connected in series under-voltage protection signal (LVP) 15 and overvoltage protection signal (OVP) 16; electric power output in order to the control battery; go into switch; when any one group of output LOW voltage or overvoltage signal are arranged in the four Battery pack baffles; the digital interface 1 that this signal can see through serial connection uploads to corresponding mains switch; in order to cut off discharge switch or charge switch, reach the due cell voltage protection of battery protection.Universal asynchronous sequence transmission interface 10 then can be via electric potential transfer circuit, or universal sequence coffret (Universal Serial Bus, USB) 21 accept self-diagnosis system 22 (for example: the work order personal digital aid (PDA) (PDA) of computer or diagnosis usefulness), the numerical data that passback diagnostic device 22 is required, as: each battery voltage, capacitance group capacity etc.; The signal that more can cooperate diagnostic device 22 to carry out overvoltage, low-voltage transmits.So the concatenation type of design numeral is linked up interface 1, not only can be used for being connected in series all battery protecting plates and supervisory control system and link up, and more can see through corresponding diagnostic program, finishes the functional diagnosis of battery protecting plate.Because universal asynchronous sequence transmission interface is the general-purpose interface of microprocessor, occasion in special use, also can utilize the mode of external keyset, convert digital signal to other interface, for example: driving computer Control Network interface (Can-Bus) 23 commonly used, under this framework, be a subsystem that battery system is considered as onboard system.
The above only is a preferable embodiment of the present utility model; protection range of the present utility model is not limited thereto, and those of skill in the art are any to be included within the utility model protection range based on non-material change on the technical solutions of the utility model.
Claims (9)
1. one kind is applicable to the numeral communication interface between many strings and battery pack; it is characterized in that; use universal asynchronous sequence transmission interface; and utilize the construction of voltage isolation assembly institute upload circuit and under the road that conducts electricity; directly battery under-voltage protection signal, the overvoltage protection signal in the digital interface of each battery pack of serial connection, the reception and the transmission signals of universal asynchronous sequence transmission, and the pressure wake-up signal that is used to wake up battery pack protection plate microprocessor.
2. the numeral communication interface that is applicable between many strings and battery pack as claimed in claim 1 is characterized in that this voltage isolation assembly is meant optical coupler, optical coupling field-effect transistor or photo-coupled relay.
3. the numeral communication interface that is applicable between many strings and battery pack as claimed in claim 1, it is characterized in that, this numeral is linked up the logical circuit of interface, can be the logical circuit of standard logic lock, bipolar transistor, field-effect transistor or the construction of metal oxide film field-effect transistor institute.
4. the numeral communication interface that is applicable between many strings and battery pack as claimed in claim 1 is characterized in that this numeral is linked up the interface that interface has direct serial connection compatibility.
5. the numeral communication interface that is applicable between many strings and battery pack as claimed in claim 1 is characterized in that the FPDP that this numeral is linked up interface is to link up with asynchronous transfer mode.
6. as claimed in claim 1ly be applicable to that the numeral between many strings and battery pack links up interfaces, it is characterized in that this numeral is linked up interface and had and uploads, and passes interface down, and the transfer function of uploading circuit and conducting electricity the road down can independently be operated.
7. the numeral communication interface that is applicable between many strings and battery pack as claimed in claim 1; it is characterized in that; this numeral is linked up its status signal kind of interface and is comprised under-voltage protection signal, overvoltage protection signal; and caution acoustic signal, battery abnormal signal and the required signal that wakes microprocessor up of collocation diagnostic device work.
8. the numeral communication interface that is applicable between many strings and battery pack as claimed in claim 1 wherein should be to use simple thumb-acting switch as the identiflication number with a string and battery pack, limited amount recognition coding by numeral communication interface.
9. the numeral communication interface that is applicable between many strings and battery pack as claimed in claim 1 is characterized in that this numeral is linked up the mode that interface can utilize external keyset, converts digital signal to the Control Network interface and uses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200084242U CN201174602Y (en) | 2008-03-13 | 2008-03-13 | Digital communication interface suitable between multiple series and parallel cell packs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200084242U CN201174602Y (en) | 2008-03-13 | 2008-03-13 | Digital communication interface suitable between multiple series and parallel cell packs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201174602Y true CN201174602Y (en) | 2008-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200084242U Expired - Lifetime CN201174602Y (en) | 2008-03-13 | 2008-03-13 | Digital communication interface suitable between multiple series and parallel cell packs |
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| CN (1) | CN201174602Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101488671B (en) * | 2009-02-24 | 2011-01-12 | 浙江大学 | Management module for multi-section series lithium ionic cell pack |
-
2008
- 2008-03-13 CN CNU2008200084242U patent/CN201174602Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101488671B (en) * | 2009-02-24 | 2011-01-12 | 浙江大学 | Management module for multi-section series lithium ionic cell pack |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160415 Address after: Chinese Taiwan New Taipei City and District Road No. 512, building 6. Patentee after: Bada Innovation Science and Technology Co., Ltd. Address before: Lake Road, Neihu district Taipei city Taiwan China section of No. 396 2 floor 1 Patentee before: Quanyang Energy Technology Corp. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081231 |