CN1956254A - Intelligent careful manager for charging discharging of dynamic lithium battery - Google Patents
Intelligent careful manager for charging discharging of dynamic lithium battery Download PDFInfo
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- CN1956254A CN1956254A CNA200610096170XA CN200610096170A CN1956254A CN 1956254 A CN1956254 A CN 1956254A CN A200610096170X A CNA200610096170X A CN A200610096170XA CN 200610096170 A CN200610096170 A CN 200610096170A CN 1956254 A CN1956254 A CN 1956254A
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- cell
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- lithium battery
- permanent magnetism
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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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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
An intelligent manager of charge / discharge on power Li cell set is prepared as connecting permanent-magnet holding relay on each cell in cell set, connecting each cell in cell set to be mode of variable series connection, utilizing microprocessor to monitor each cell independently for ensuring charge / discharge of cell set to be on right position, utilizing keyboard display module to output difference data of each cell for carrying out intelligent management on cell set.
Description
Technical field
The present invention relates to secondary energy sources dynamic lithium battery group, be specifically related to intelligent careful manager for charging discharging of dynamic lithium battery.
Background technology
Lithium-ion-power cell has been widely used in the army and the people fields such as Aero-Space, mobile communication, motor vehicle as a kind of secondary energy sources that drive usefulness, yet present dynamic lithium battery group charge-discharge control circuit both domestic and external all is to adopt the battery pack global voltage as the control foundation, belongs to the low level management pattern.As everyone knows, the nominal voltage of single lithium battery is 3.6V, must not be higher than 4.2V during charging, must not be lower than 2.6V during discharge, overcharges or crosses to put all and will shorten battery life even accidents caused; Suppose that certain battery pack is composed in series by m cell, then the nominal voltage of this battery pack is 3.6V * m, and charging voltage total under the perfect condition must not be higher than 4.2V * m, and total discharge voltage must not be lower than 2.6V * m; In fact, consider the otherness of cell, in order to ensure safety, batteries charging stops voltage and may be set at about 3.8V * m, discharge stops voltage and often is set at about 3V * m, should be m 1.6V (=4.2V-2.6V) use amplitude but shrink as m 0.8V (=3.8V-3.0V) about, this has just wasted only about half of resource virtually, both reduced the continuation of the journey index after each charging, be difficult to also guarantee that whole battery group reaches life expectancy, even cause the loss of scrapping in advance.
Must " quoted in broken sentences " in order to ensure cell safety only with middle, therefore form the common fault of battery pack " undercharge, discharge are inadequately ", when even each cell performance is consistent relatively in the battery pack when just dispatching from the factory, low level management can not guarantee cell rightly abundance put enough; After using a period of time, comparatively evident difference appears in cell, and low level management is just more powerless, and this ubiquitous management of charging and discharging is not in place just to have become nothing to be surprised at, habitual drawback.
Summary of the invention
The objective of the invention is: discharge and recharge potentiality in order to excavate the lithium battery group, a kind of intelligent careful manager for charging discharging of dynamic lithium battery is provided, utilize discharging and recharging of this manager control lithium battery group, prolong the continuation of the journey index of dynamic lithium battery group.
Technical solution of the present invention is: be connected into the battery pack main circuit by one group of cell, it is characterized in that: connect a permanent magnetism latching relay on each cell, the output of permanent magnetism latching relay connects the positive pole of cell respectively, negative pole and battery pack series connection main line, the input of permanent magnetism latching relay connects the microcomputer controller, described microcomputer controller is mainly by electronic switch, the bound voltage comparator, microprocessor is formed, the end correspondence of throwing of electronic switch connects each permanent magnetism latching relay, the cutter end of electronic switch connects the upper voltage limit comparator respectively, the test input of lower voltage limit comparator and ground connection, wherein two incoming lines of microprocessor connect the output of bound voltage comparator respectively, wherein some output lines of microprocessor connect the coding bus of electronic switch respectively, and wherein some output lines of microprocessor connect the input of permanent magnetism latching relay respectively through overdriving; Wherein 1 incoming line connects the charging test point, and wherein some output lines of microprocessor connect light-emitting diode respectively.
In the intelligent careful manager for charging discharging of dynamic lithium battery of the present invention, connect keyboard display module by connector or infrared ray on the microcomputer controller, keyboard display module can be made the separate unit that is similar to the TV remote controller sample.
Respectively saving of lithium battery group connects the permanent magnetism latching relay on the cell, this relay has 3 outputs and 3 inputs, 3 contacts that 3 outputs are equivalent to " single-pole double throw " switch are called a, b, c, wherein c is the intermediate conversion contact, the positive pole of a order body battery, the negative pole of b order body battery, c connects the series connection main line, if the corresponding cell E of ca phase general rule is a presence, if the corresponding cell E of cb phase general rule is an off-line state, 3 inputs are called S, O, R, O connection microcomputer controller wherein " ", S end and R end are connected the output line of microcomputer controller respectively through driver, can be with the set and resetting respectively of permanent magnetism latching relay, the just online and off-line of cell difference when exporting high level.
The microcomputer controller is mainly by electronic switch, the bound voltage comparator, microprocessor is formed, electronic switch is equivalent to the change over switch that a cutter is thrown more, a end and b end that its " throwing end " correspondence is connected in each permanent magnetism latching relay are the positive pole and the negative pole of each cell, 3 " cutter ends " have 2 test inputs that connect the lower voltage limit comparator respectively, 1 " cutter end " dead earth, wherein 2 incoming lines of microprocessor connect the output of bound voltage comparator respectively, wherein some output lines connect the coding bus of electronic switch respectively to determine the channel number of " cutter is thrown more ", wherein some output lines S end and R of connecting the permanent magnetism latching relay respectively through overdriving holds, control the online and off-line of cell as required, wherein 1 incoming line connect " charging test point " with inform computer current be charged state or discharge condition, wherein some output lines connect the online and off-line that light-emitting diode is used to refer to each cell respectively.
The present invention has the following advantages: 1. each cell is converted into variable series connection by fixing series connection, put in place to discharge and recharge to greatest extent in conjunction with the monomer redundancy, when charging, guarantee every joint cell m+n full charge rightly, also can guarantee to greatest extent during discharge charge and can put, if n=m, can guarantee that then m cell all put rightly, even if n=0 does not promptly have under the reserve battery situation, m cell is all sufficient during charging, at least 1 is put into Minimum Acceptable Value during discharge, under the control of intelligent precision management device, not only the continuation of the journey index of battery pack can have clear improvement, to such an extent as to and stopped to realize making the best use of everything because of discharging and recharging the loss that improper battery pack is scrapped in advance in the use, aim of saving; 2. manager is equipped with keyboard display module, and the statistics of cell otherness is filed, shows in real time, safeguards that reminding, change suggestion etc. realizes intelligent additional management.
Description of drawings
Fig. 1 is a main circuit of the present invention.
Fig. 2 is the cell connection layout of Fig. 1.
Fig. 3 is a manager microcomputer controller circuit diagram.
Fig. 4 is a manager keyboard display module circuit diagram.
Fig. 5 is a flow chart.
Among the figure: 1. cell, 2. permanent magnetism latching relay, 3. microcomputer controller, 4. electronic switch, 5. upper voltage limit comparator, 6. lower voltage limit comparator, 7. microprocessor, 8. keyboard display module.
Embodiment
As Fig. 1,2,3 are connected into the battery pack main circuit by one group of cell 1, it is characterized in that: connect a permanent magnetism latching relay 2 on each cell 1, the output of permanent magnetism latching relay 2 connects the positive pole of cell 1 respectively, negative pole and battery pack series connection main line, the input of permanent magnetism latching relay 2 connects microcomputer controller 3, described microcomputer controller 3 is mainly by electronic switch 4, bound voltage comparator 5,6, microprocessor 7 is formed, the end correspondence of throwing of electronic switch 4 connects each permanent magnetism latching relay 2, the cutter end of electronic switch 4 connects upper voltage limit comparator 5 respectively, the test input of lower voltage limit comparator 6, wherein two incoming lines of microprocessor 7 connect bound voltage comparator 5 respectively, 6 output, wherein some output lines of microprocessor 7 connect the coding bus of electronic switch 4 respectively, and wherein some output lines of microprocessor 7 connect the input of permanent magnetism latching relay 2 respectively through overdriving.
In the intelligent careful manager for charging discharging of dynamic lithium battery of the present invention, wherein 1 incoming line of microprocessor 7 connects the charging test point, and wherein some output lines of microprocessor 7 connect light-emitting diode respectively.
In the intelligent careful manager for charging discharging of dynamic lithium battery of the present invention, microcomputer controller 3 connects keyboard display module 8 by connector or infrared ray, and as shown in Figure 4, this module can be made the separate unit that is similar to the TV remote controller sample.
Respectively saving of lithium battery group connects the permanent magnetism latching relay on the cell, this relay has 3 outputs and 3 inputs, 3 contacts that 3 outputs are equivalent to " single-pole double throw " switch are called a, b, c, wherein c is the intermediate conversion contact, the positive pole of a order body battery, the negative pole of b order body battery, c connects the series connection main line, if the corresponding cell E of ca phase general rule is a presence, if the corresponding cell E of cb phase general rule is an off-line state, 3 inputs are called S, O, R, O connection microcomputer controller wherein " ", S end and R end are connected the output line of microcomputer controller respectively through driver, can be with the set and resetting respectively of permanent magnetism latching relay, the just online and off-line of cell difference when exporting high level.
The microcomputer controller is mainly by electronic switch, the bound voltage comparator, microprocessor is formed, electronic switch is equivalent to the change over switch that a cutter is thrown more, a end and b end that its " throwing end " correspondence is connected in each permanent magnetism latching relay are the positive pole and the negative pole of each cell, 3 " cutter ends " have 2 test inputs that connect the lower voltage limit comparator respectively, 1 " cutter end " dead earth, wherein 2 incoming lines of microprocessor connect the output of bound voltage comparator respectively, wherein some output lines connect the coding bus of electronic switch respectively to determine the channel number of " cutter is thrown more ", wherein some output lines S end and R of connecting the permanent magnetism latching relay respectively through overdriving holds, control the online and off-line of cell as required, wherein 1 incoming line connect " charging test point " with inform computer current be charged state or discharge condition, wherein some output lines connect the online and off-line that light-emitting diode is used to refer to each cell respectively.
Supposing that certain battery pack is originally by m cell series connection, is m+n cell series connection (0≤n≤m, m, n are integer) now, in order to narrate conveniently, might as well be that example illustrates with m=4, n=1, as relay contact c
1a
1E during connection
1Online series connection, and contact c
1b
1E during connection
1Off-line is had a rest, all the other are similar, by that analogy, this has just changed in the past, and being fixedly connected of each cell of battery pack is variable series connection, although battery pack is made up of 5 joint cells, but its total voltage is no more than the total voltage after 4 joint cells are connected when discharge, and that is to say has 1 joint cell to be in the off-line resting state all the time, is E as shown in fig. 1
1→ E
4Online series connection, E
5Off-line is had a rest, the purpose of permanent magnetism latching relay is a saves energy, this relay needs pulse current to drive when only switching mutually between two stable states, and is the therefore energy content of battery of consume valuable not that is stabilized in a certain state by permanent magnetism power at ordinary times.
Though Fig. 3 and Fig. 1 separately draw, but in fact they are indivisible integral body, all be installed on the bar printing wiring board, electronic switch is equivalent to the change over switch that a cutter is thrown more, a end and b end that its " throwing end " correspondence is connected in each permanent magnetism latching relay are the positive pole and the negative pole of each cell, 3 " cutter ends " have 2 test inputs that connect the lower voltage limit comparator respectively, 1 " cutter end " dead earth, microprocessor 2 incoming lines wherein connect the output of bound voltage comparator respectively, and wherein 6 output lines connect the coding bus of electronic switch respectively to determine the channel number of " cutter is thrown more "; Wherein 10 output lines S end and R of connecting the permanent magnetism latching relay respectively through overdriving holds, control the online and off-line of cell as required, wherein 1 incoming line connect " charging test point " be among Fig. 3 CD with inform computer current be charged state or discharge condition, wherein 5 output lines connect the online and off-line that 5 red light emitting diodes are used to refer to 5 joint cells respectively; The microcomputer controller is monitored the voltage of every joint cell by electronic switch, the touring measurement of dual-threshold voltage comparator under the coordination of special-purpose software by a microprocessor MCU, each joint can both sufficient 4.2V and do not overcharge when guaranteeing to charge, if a certain joint cell at first drops to 2.6V during discharge, then controlling main circuit is automatically replaced it by reserve battery, when not having reserve battery interchangeable, just stop discharge, at this moment had at least 2 cells to discharge into Minimum Acceptable Value.
Keyboard display module as shown in Figure 4, in the specific implementation it is made the separate unit that is similar to the TV remote controller sample, this module connects by connector or infrared ray with the microcomputer controller, it is different and different with the integrated package model with the connection between the microprocessor, in order to reduce product cost and to reduce its volume and weight, keyboard display module is general only inquires about the statistics that respectively saves cell as a specific purpose tool for the maintenance personal of manufacturer, also can sell separately as a kind of optional component in case of necessity.
Be illustrated in figure 5 as flow chart, systems soft ware will be different with the difference of selected MCU, and promptly program language should match with microprocessor.
It should be noted that especially battery pack series connection major loop (input that does not contain " permanent magnetism latching relay ") relatively independent with the circuit of microcomputer controller, must not be altogether!
Claims (7)
1. intelligent careful manager for charging discharging of dynamic lithium battery, it is characterized in that: the main circuit that is connected into battery pack by one group of cell (1), each cell (1) is gone up and is connected a permanent magnetism latching relay (2), the output of permanent magnetism latching relay (2) connects the series connection main line of positive pole, negative pole and the battery pack of cell (1) respectively, and the input of permanent magnetism latching relay (2) connects microcomputer controller (3) respectively.
2. intelligent careful manager for charging discharging of dynamic lithium battery according to claim 1, it is characterized in that: microcomputer controller (3) is mainly by electronic switch (4), bound voltage comparator (5,6), microprocessor (7) is formed, " throwing end " correspondence of electronic switch (4) is connected in each permanent magnetism latching relay (2), " the cutter end " of electronic switch (4) connects bound voltage comparator (5 respectively, 6) test input and dead earth, wherein 2 incoming lines of microprocessor (7) connect bound voltage comparator (5 respectively, 6) output, wherein some output lines of microprocessor (7) connect the coding bus of electronic switch (4) respectively, and wherein some output lines of microprocessor (7) connect permanent magnetism latching relay (2) respectively through overdriving S end and R hold.
3. intelligent careful manager for charging discharging of dynamic lithium battery according to claim 2 is characterized in that: wherein 1 incoming line of microprocessor (7) connects the charging test point.
4. intelligent careful manager for charging discharging of dynamic lithium battery according to claim 2 is characterized in that: wherein some output lines of microprocessor (7) connect light-emitting diode respectively.
5. intelligent careful manager for charging discharging of dynamic lithium battery according to claim 2 is characterized in that: go up by connector or infrared ray connection keyboard display module (8) at microcomputer controller (3).
6. intelligent careful manager for charging discharging of dynamic lithium battery according to claim 2, it is characterized in that: the cell (1) that respectively saves in the lithium battery group is gone up connection permanent magnetism latching relay (2), this relay has 3 outputs and 3 inputs, 3 contacts that 3 outputs are equivalent to " single-pole double throw " switch are called a, b, c, wherein c is the intermediate conversion contact, the positive pole of a order body battery (1), the negative pole of b order body battery (1), c connects the series connection main line, 3 inputs are called S, O, R, O connection microcomputer controller wherein " ", the S end is held the output line that is connected the microcomputer controller respectively through driver with R.
7. intelligent careful manager for charging discharging of dynamic lithium battery according to claim 2, it is characterized in that: a end and b end that " throwing end " correspondence of electronic switch (4) is connected in each permanent magnetism latching relay (2) are the positive pole and the negative pole of each cell (1), 3 " cutter ends " have 2 to connect lower voltage limit comparator (5 respectively, 6) test input, 1 " cutter end " dead earth, microprocessor (7) 2 incoming lines wherein connect bound voltage comparator (5 respectively, 6) output, wherein 6 output lines connect the coding bus of electronic switch (4) respectively to determine the channel number of " cutter is thrown more "; Wherein 10 output lines S end and R of connecting permanent magnetism latching relay (2) through overdriving respectively holds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200610096170XA CN1956254A (en) | 2006-09-20 | 2006-09-20 | Intelligent careful manager for charging discharging of dynamic lithium battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200610096170XA CN1956254A (en) | 2006-09-20 | 2006-09-20 | Intelligent careful manager for charging discharging of dynamic lithium battery |
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| CN1956254A true CN1956254A (en) | 2007-05-02 |
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| CNA200610096170XA Pending CN1956254A (en) | 2006-09-20 | 2006-09-20 | Intelligent careful manager for charging discharging of dynamic lithium battery |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104192022A (en) * | 2014-09-16 | 2014-12-10 | 中投仙能科技（苏州）有限公司 | Comprehensive electromobile control system |
| CN106840715A (en) * | 2017-02-13 | 2017-06-13 | 中国铁道科学研究院 | Train bogie unstability detection sensor detecting system and method |
| CN109581235A (en) * | 2019-01-15 | 2019-04-05 | 中国第汽车股份有限公司 | A kind of electric automobile power battery is online and offline volume test connector equipment and application method |
-
2006
- 2006-09-20 CN CNA200610096170XA patent/CN1956254A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104192022A (en) * | 2014-09-16 | 2014-12-10 | 中投仙能科技（苏州）有限公司 | Comprehensive electromobile control system |
| CN106840715A (en) * | 2017-02-13 | 2017-06-13 | 中国铁道科学研究院 | Train bogie unstability detection sensor detecting system and method |
| CN109581235A (en) * | 2019-01-15 | 2019-04-05 | 中国第汽车股份有限公司 | A kind of electric automobile power battery is online and offline volume test connector equipment and application method |
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