CN102074763A - Battery engine - Google Patents
Battery engine Download PDFInfo
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- CN102074763A CN102074763A CN2010106071657A CN201010607165A CN102074763A CN 102074763 A CN102074763 A CN 102074763A CN 2010106071657 A CN2010106071657 A CN 2010106071657A CN 201010607165 A CN201010607165 A CN 201010607165A CN 102074763 A CN102074763 A CN 102074763A
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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 invention relates to a battery engine, comprising a battery box in which (N+1) serially connected batteries are installed, wherein the amount of working batteries is N, the (N+1) battery is a standby battery, the battery engine further comprises a data acquisition module and an intelligent control chip, the data acquisition module comprises (N+1) acquisition ICs having the same structure and function, each acquisition IC is respectively connected with an anode signal and a cathode signal of the (N+1) batteries in the battery box, and each acquisition IC is connected to the intelligent control chip in parallel. The battery engine can detect voltage, current and temperature of each battery in real time, so as to implement balanced discharge of each single battery, and avoid shortening the service life of the whole battery pack for the reason that the failure of the whole battery pack is caused by premature failure of some single battery; and each battery pack is provided with a (N+1) single battery as a standby battery, so that trouble in changing batteries is avoided, and uninterrupted operation of electrical vehicles is ensured.
Description
Technical field
The present invention relates to the vehicle technology field, especially a kind of battery engine that is used to realize the non-loss-type balanced management of each cell in the battery of electric vehicle group.
Background technology
Current, because environmental pollution and petroleum resources is in short supply, motor vehicle has become the direction that substitutes the conventional truck development, in the development and Industry Promotion process of electronic battery car, the problem of battery technology becomes topmost restraining factors, and these problems mainly show following several aspect:
(1) electrokinetic cell is in manufacture process, because the difference of manufacturing process, even same batch battery, also inevitably exist difference, promptly the difference on the capacity directly shows on the terminal voltage of battery, in charging process, the cell voltage that capacity is little rises very fast, promptly when the underfill still of other batteries, the battery that capacity is little is full of, and continues charging and will cause the little battery of capacity to be in the overshoot state.The direct result of this species diversity is that the battery that capacity is little often is in the state of overcharging in charging process, be in the state of putting in the process of discharge, causes its cycle life obviously to shorten according to the wooden barrel principle, brings the whole group storage battery life-span to reduce.
(2) battery pack the situation that cell damages often occurs in the utilization process, and this situation will cause the performance of other storage battery to be seriously influenced if fail in time to find, and then causes the damage of whole Battery pack.Therefore must make the early prediction and very important that seem of reporting to the police to the failure condition that batteries may exist.
(3) battery not only is subjected to the influence of ambient temperature, battery divides inside and outside other in the encapsulation process of battery pack, under situation about discharging and recharging, caused differing of inside and outside battery temperature, be himself inboard battery temperature height, temperature outside is lower slightly, causes discharge and recharge inconsistent, certain cell occurs and cross and break through that to put phenomenon serious, thus the performance of the whole Battery pack of influence.
Except that above analysis, in the use of the motor vehicle of reality, also find, the life-span of single battery is long more than the battery in the electric automobile, studies show that this is because battery is in the unbalanced state, charge and discharge process is also unbalanced, and the charge and discharge process that constantly repeats has more aggravated unbalanced phenomena, the incomplete battery life that charges also shortens thereupon, cause the lost of life of the battery pack at place, thereby make the lost of life of entire cell system, make the use cost of electric automobile or electric bicycle increase, also cause the waste of the energy.
Summary of the invention
At the lack of uniformity between above existing each cell of battery of electric vehicle group, be necessary to provide a kind of battery engine that each cell discharges and recharges, operating state reaches non-loss-type equilibrium in the battery pack of electric motor car that makes.
The objective of the invention is by realizing by the following technical solutions: a kind of battery engine, it comprises in the battery case and comprises (N+1) individual battery that is connected in series, wherein, the number of working battery is N, (N+1) individual battery is a reserve battery, be in and treat operating state, the battery engine comprises a data acquisition module and intelligent control chip, described data acquisition module comprises the collection IC that (N+1) individual 26S Proteasome Structure and Function is all identical, each gather IC respectively with battery case in (N+1) individual battery just, negative signal connects, and each is gathered IC and all is connected in parallel to intelligent control chip.
As optimized technical scheme of the present invention, each is gathered IC and comprises battery information measuring circuit, temperature sensor, protective circuit, state acquisition circuit, and the effect of described battery information measuring circuit is to gather voltage, electric current, resistance and the residual capacitance data of battery in charge and discharge process; The effect of described temperature sensor is a temperature of measuring cell; The effect of described state acquisition circuit is to gather the section number of cell in battery case, information writing time, charge or discharge Status Flag; The effect of described protective circuit is according to parameters such as the electric current of the cell that is connected with this collection IC that collects, voltage, temperature, judging that this cell is in overcharges or crosses when putting state, this protective circuit can be cut off this cell loop automatically, and is unaffected with the function that guarantees other cells; The information of gathering the cell that IC breaks down parameter such as the inside battery information such as sequence number of the electric current that collects, voltage, temperature, internal resistance, dump energy, battery and cut-out all is sent to described intelligent control chip.
As optimized technical scheme of the present invention, described temperature sensor is an occasionally thermistor of thermoelectricity.
As optimized technical scheme of the present invention, described temperature sensor output signal is analog output signal or digital output signal.
As optimized technical scheme of the present invention; the method of work of described protective circuit is: when a certain cell overcharges; cross and put; temperature is on the low side or higher; and when having departed from the critical value of establishing in the protective circuit; the loop of this cell is cut off; after a period of time (for example 10 seconds); protection module recloses the loop of this cell; as voltage; the voltage that electric current and capacitance measurement circuit and temperature sensor measurement obtain about this cell; electric current; electric capacity; parameters such as temperature are normal; then system restoration is normal; otherwise; still undesired as parameter, then cut off the loop of this cell once more, and this information is sent to intelligent control chip.
As optimized technical scheme of the present invention, described intelligent control chip is made up of a series of intelligent management modules, it comprises protection module, monitoring modular, storage module, " N+1 " functional module and data computation module, the state processing module, described protection module comprises an information-processing circuit and a movable device, described information-processing circuit is gathered the various information of each battery of IC transmission according to each, detect filling of a certain battery, the state of state such as discharge or temperature or dump energy and other all batteries is unbalanced, but do not reach the critical value of establishing in the protective circuit of gathering IC, be that the loop of described unbalanced single battery is not when being cut off, described movable device sends regulating command, and this regulating command is passed to cell via gathering IC; The function of monitoring modular comprises calibration process, the acquisition measurement data to these parameters to electric current, voltage, the isoparametric measurement of temperature and system, handles through corresponding calculated then, obtains measuring numerical value; Electric current, voltage, temperature, the electrical parameter value of electric current, voltage, temperature, electrical parameter value and the discharge condition of the charged state of each cell that a plurality of collection of storage module storage IC send, and a certain owing to breaking down and by the sequence number of cell in battery case of the collection IC cut-off loop that it connected; The information that " N+1 " functional module is cut off connected cell loop according to a certain collection IC, it is " N+1 " individual collection IC that reserve battery is connected with " N+1 " individual battery extremely that this module sends an instruction, collection is connected this reserve battery loop according to this instruction, controls it and starts working.
As optimized technical scheme of the present invention, described movable device is vent diverter or voltage, electric current or electric capacity conversion element.
As optimized technical scheme of the present invention, the control method of described movable device is: the capacitance of the cell of capacitance maximum in the battery pack is shifted in the cell of part capacitance minimum to the battery pack.
As optimized technical scheme of the present invention, the control method of described movable device is: the capacitance of the bus of N in the battery case work parallel circuits is shifted in the cell of part capacitance minimum to the battery pack.
As optimized technical scheme of the present invention, described battery engine also comprises two parallel resistances, and it is connected in parallel to intelligent control chip with a plurality of collection IC respectively.
With respect to prior art, the present invention's battery engine can be in real time detects voltage, electric current, the temperature of every battery, and the state-of-charge of estimating battery, carry out the energy reallocation at disperse this problem owing to the inconsistent energy that causes of cell capacity, thereby realize balanced discharge to each cell, avoided because the premature depletion of a certain cell causes the whole battery group cisco unity malfunction, thereby shortened the useful life of whole battery group; On the other hand, each battery pack is equipped with (N+1) individual cell, (N+1) individual cell is as reserve battery, when some cells break down in the cell of N work, acquisition chip can cut off this fail battery loop automatically, and intelligent control chip is connected this reserve battery loop simultaneously, guarantees the operate as normal of whole battery group, avoid changing the trouble of battery, ensured running without interruption of motor vehicle.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing and specific embodiment:
Fig. 1 is the module principle schematic diagram of better embodiment of the present invention.
Embodiment
As shown in Figure 1, comprise (N+1) individual battery that is connected in series in the battery case that the battery engine is managed, wherein, the number of working battery is N, and (N+1) individual battery is a reserve battery, is in to treat operating state.The battery engine comprises a data acquisition module and intelligent control chip.Described data acquisition module comprises (N+1) individual collection IC, each is gathered IC and is connected with the positive and negative electrode signal of (N+1) individual battery in the battery case respectively, each is gathered IC and all is connected in parallel to intelligent control chip, simultaneously itself and di- resistance 10,20, this two resistance 10,20 is the outer meeting resistance of intelligent control chip.Each internal circuit configuration and function of gathering IC is all identical.
Each is gathered IC and comprises battery information measuring circuit, temperature sensor, protective circuit, state acquisition circuit.
The effect of described battery information measuring circuit is to gather voltage, electric current, resistance and the residual capacitance data of battery in charge and discharge process.
The effect of described temperature sensor is a temperature of measuring cell.The operating temperature range of cell is at-20 ℃-60 ℃, and temperature sensor commonly used has following a few class: thermocouple: can adopt the probe-type thermocouple that has exposed lead-in wire, advantage is the precision height, and temperature-measuring range is wide; Thermistor: have the resistance of negative temperature coefficient, low in the cost, but poor linearity need be carried out appropriate signal condition IC integrated temperature sensor.Temperature sensor output signal can be that simulation output also can be numeral output.
The effect of described state acquisition circuit is to gather the section number of cell in battery case, information writing time, charge or discharge Status Flag.
The effect of described protective circuit is according to parameters such as the electric current of the cell that is connected with this collection IC that collects, voltage, temperature; judging that this cell is in overcharges or crosses when putting state; this protective circuit can be cut off this cell loop automatically, and is unaffected with the function that guarantees other cells.Concrete grammar is: when a certain cell overcharges; cross and put; temperature is on the low side or higher; and when having departed from the critical value of establishing in the protective circuit; the loop of this cell is cut off; after a period of time (for example 10 seconds); protection module recloses the loop of this cell; as voltage; the voltage that electric current and capacitance measurement circuit and temperature sensor measurement obtain about this cell; electric current; electric capacity; parameters such as temperature are normal; then system restoration is normal; otherwise; still undesired as parameter; then cut off the loop of this cell once more, and this information is sent to intelligent control chip.
The information of gathering the cell that IC breaks down parameter such as the inside battery information such as sequence number of the electric current that collects, voltage, temperature, internal resistance, dump energy, battery and cut-out all is sent to described intelligent control chip.
Described intelligent control chip is made up of a series of intelligent management modules, and it comprises protection module, monitoring modular, storage module, " N+1 " functional module and data computation module, state processing module.
Protection module: comprise an information-processing circuit and a movable device, this activity device can be a vent diverter, can be voltage, electric current or electric capacity conversion element, and simultaneously, it both can be a digital device, also can be analogue device.Described information-processing circuit is gathered the various information of each battery of IC transmission according to each; the state that detects the charge and discharge of a certain battery or state such as temperature or dump energy and other all batteries is unbalanced; but do not reach the critical value of establishing in the protective circuit of gathering IC; be that the loop of described unbalanced single battery is not when being cut off; described movable device sends regulating command, and this regulating command is passed to cell via gathering IC.The control method of described movable device has two kinds: first kind, the capacitance of the cell of capacitance maximum in the battery pack is shifted in the cell of part capacitance minimum to the battery pack; Second kind, the capacitance of the bus of N in the battery case work parallel circuits is shifted in the cell of part capacitance minimum to the battery pack.The effect of two resistance 10,20 is: the current value of each cell in the auxiliary protection module regulating cell case.
Monitoring modular: its function comprises calibration process, the acquisition measurement data to these parameters to electric current, voltage, the isoparametric measurement of temperature and system, handles through corresponding calculated then, obtains measuring numerical value.Wherein the very high precision of the measurement requirement of electric current relates to the charge/discharge twocouese again and measures and gain controlling, needs to measure at every turn and fills, puts two numerical value and obtain difference, checks whether the gain and the gain that whether need to change measurement have reached maximum or minimum.
Storage module: electric current, voltage, temperature, the electrical parameter value of electric current, voltage, temperature, electrical parameter value and the discharge condition of the charged state of each cell that a plurality of collection of this module storage IC send, and a certain owing to breaking down and by the sequence number of cell in battery case of the collection IC cut-off loop that it connected.
" N+1 " functional module: the effect of this module is, according to the information of a certain collection IC with the cut-out of connected cell loop, it is " N+1 " individual collection IC that reserve battery is connected with " N+1 " individual battery extremely that this module sends an instruction, collection is connected this reserve battery loop according to this instruction, controls it and starts working.
The final effect of above-mentioned all modules guarantees that exactly battery pack under any circumstance can both operate as normal, and to the outside, and original the giving birth to of the battery pack that the N of battery case cell constitutes can index be constant.
Claims (10)
1. battery engine, it is characterized in that: it comprises in the battery case and comprises (N+1) individual battery that is connected in series, wherein, the number of working battery is N, (N+1) individual battery is a reserve battery, be in and treat operating state, it also comprises a data acquisition module and intelligent control chip, described data acquisition module comprises the collection IC that (N+1) individual 26S Proteasome Structure and Function is all identical, each is gathered IC and is connected with the positive and negative electrode signal of (N+1) individual battery in the battery case respectively, and each collection IC all is connected in parallel to intelligent control chip.
2. battery engine according to claim 1, it is characterized in that: each is gathered IC and comprises battery information measuring circuit, temperature sensor, protective circuit, state acquisition circuit, and the effect of described battery information measuring circuit is to gather voltage, electric current, resistance and the residual capacitance data of battery in charge and discharge process; The effect of described temperature sensor is a temperature of measuring cell; The effect of described state acquisition circuit is to gather the section number of cell in battery case, information writing time, charge or discharge Status Flag; The effect of described protective circuit is according to parameters such as the electric current of the cell that is connected with this collection IC that collects, voltage, temperature, judging that this cell is in overcharges or crosses when putting state, this protective circuit can be cut off this cell loop automatically, and is unaffected with the function that guarantees other cells; The information of gathering the cell that IC breaks down parameter such as the inside battery information such as sequence number of the electric current that collects, voltage, temperature, internal resistance, dump energy, battery and cut-out all is sent to described intelligent control chip.
3. battery engine according to claim 2 is characterized in that: described temperature sensor is an occasionally thermistor of thermoelectricity.
4. battery engine according to claim 2 is characterized in that: described temperature sensor output signal is analog output signal or digital output signal.
5. battery engine according to claim 2; it is characterized in that: the method for work of described protective circuit is: when a certain cell overcharges; cross and put; temperature is on the low side or higher; and when having departed from the critical value of establishing in the protective circuit; the loop of this cell is cut off; after a period of time (for example 10 seconds); protection module recloses the loop of this cell; as voltage; the voltage that electric current and capacitance measurement circuit and temperature sensor measurement obtain about this cell; electric current; electric capacity; parameters such as temperature are normal; then system restoration is normal; otherwise; still undesired as parameter; then cut off the loop of this cell once more, and this information is sent to intelligent control chip.
6. battery engine according to claim 2, it is characterized in that: described intelligent control chip is made up of a series of intelligent management modules, it comprises protection module, monitoring modular, storage module, " N+1 " functional module and data computation module, the state processing module, described protection module comprises an information-processing circuit and a movable device, described information-processing circuit is gathered the various information of each battery of IC transmission according to each, detect filling of a certain battery, the state of state such as discharge or temperature or dump energy and other all batteries is unbalanced, but do not reach the critical value of establishing in the protective circuit of gathering IC, be that the loop of described unbalanced single battery is not when being cut off, described movable device sends regulating command, and this regulating command is passed to cell via gathering IC; The function of monitoring modular comprises calibration process, the acquisition measurement data to these parameters to electric current, voltage, the isoparametric measurement of temperature and system, handles through corresponding calculated then, obtains measuring numerical value; Electric current, voltage, temperature, the electrical parameter value of electric current, voltage, temperature, electrical parameter value and the discharge condition of the charged state of each cell that a plurality of collection of storage module storage IC send, and a certain owing to breaking down and by the sequence number of cell in battery case of the collection IC cut-off loop that it connected; The information that " N+1 " functional module is cut off connected cell loop according to a certain collection IC, it is " N+1 " individual collection IC that reserve battery is connected with " N+1 " individual battery extremely that this module sends an instruction, collection is connected this reserve battery loop according to this instruction, controls it and starts working.
7. battery engine according to claim 6 is characterized in that: described movable device is vent diverter or voltage, electric current or electric capacity conversion element.
8. battery engine according to claim 7 is characterized in that: the control method of described movable device is: the capacitance of the cell of capacitance maximum in the battery pack is shifted in the cell of part capacitance minimum to the battery pack.
9. battery engine according to claim 7 is characterized in that: the control method of described movable device is: the capacitance of the bus of N in the battery case work parallel circuits is shifted in the cell of part capacitance minimum to the battery pack.
10. battery engine according to claim 1 is characterized in that:, described battery engine also comprises two parallel resistances, it is connected in parallel to intelligent control chip with a plurality of collection IC respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010106071657A CN102074763A (en) | 2010-12-27 | 2010-12-27 | Battery engine |
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| CN2010106071657A CN102074763A (en) | 2010-12-27 | 2010-12-27 | Battery engine |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303539A (en) * | 2011-06-02 | 2012-01-04 | 陈时升 | Control method for protection of automobile standby battery, and related control system |
| CN104157918A (en) * | 2014-07-31 | 2014-11-19 | 广州市明昕通信技术有限公司 | Method and device for performing redundant reassembling on storage batteries |
| CN104155613A (en) * | 2014-08-14 | 2014-11-19 | 国家电网公司 | Online electric power communication battery pack monitoring method |
| CN104813183A (en) * | 2012-11-30 | 2015-07-29 | 特斯拉汽车公司 | Transient detection of an exceptional charge event in a series connected battery element |
| CN104977536A (en) * | 2014-04-14 | 2015-10-14 | 中国移动通信集团河北有限公司 | Method and apparatus for detecting work state between storage battery packs |
| CN105186049A (en) * | 2015-08-27 | 2015-12-23 | 曾建波 | Intelligent management system and management method for battery pack |
| CN107040025A (en) * | 2017-05-10 | 2017-08-11 | 国网江西省电力公司电力科学研究院 | A kind of implementation method of the special integrated circuit of single battery |
| CN108123182A (en) * | 2018-01-18 | 2018-06-05 | 江苏兴云新能源有限公司 | The battery protection system of battery signal collection module and the application battery signal collection module |
| WO2019042430A1 (en) * | 2017-08-31 | 2019-03-07 | 比亚迪股份有限公司 | Battery information acquisition device, battery balancing system, vehicle, method, and storage medium |
| CN110370988A (en) * | 2019-07-15 | 2019-10-25 | 重庆工商大学 | New energy car battery is for electric regulating system |
| CN110588376A (en) * | 2019-09-16 | 2019-12-20 | 成都航天科工微电子系统研究院有限公司 | Voltage-dividing type battery pack power supply system |
| CN114043901A (en) * | 2021-11-09 | 2022-02-15 | 上海平野环保科技有限公司 | Protection method for lithium battery and lithium battery |
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2010
- 2010-12-27 CN CN2010106071657A patent/CN102074763A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303539B (en) * | 2011-06-02 | 2013-01-02 | 陈时升 | Control method for protection of automobile standby battery, and related control system |
| CN102303539A (en) * | 2011-06-02 | 2012-01-04 | 陈时升 | Control method for protection of automobile standby battery, and related control system |
| CN104813183A (en) * | 2012-11-30 | 2015-07-29 | 特斯拉汽车公司 | Transient detection of an exceptional charge event in a series connected battery element |
| CN104813183B (en) * | 2012-11-30 | 2018-05-22 | 特斯拉公司 | The Transient detection of abnormal charge event in the cell device being connected in series |
| CN104977536B (en) * | 2014-04-14 | 2018-05-18 | 中国移动通信集团河北有限公司 | The method and device of working condition between a kind of detection accumulator group |
| CN104977536A (en) * | 2014-04-14 | 2015-10-14 | 中国移动通信集团河北有限公司 | Method and apparatus for detecting work state between storage battery packs |
| CN104157918A (en) * | 2014-07-31 | 2014-11-19 | 广州市明昕通信技术有限公司 | Method and device for performing redundant reassembling on storage batteries |
| CN104155613A (en) * | 2014-08-14 | 2014-11-19 | 国家电网公司 | Online electric power communication battery pack monitoring method |
| CN105186049A (en) * | 2015-08-27 | 2015-12-23 | 曾建波 | Intelligent management system and management method for battery pack |
| CN107040025A (en) * | 2017-05-10 | 2017-08-11 | 国网江西省电力公司电力科学研究院 | A kind of implementation method of the special integrated circuit of single battery |
| CN107040025B (en) * | 2017-05-10 | 2020-02-28 | 国网江西省电力有限公司电力科学研究院 | Method for realizing integrated circuit special for single storage battery |
| WO2019042430A1 (en) * | 2017-08-31 | 2019-03-07 | 比亚迪股份有限公司 | Battery information acquisition device, battery balancing system, vehicle, method, and storage medium |
| CN108123182A (en) * | 2018-01-18 | 2018-06-05 | 江苏兴云新能源有限公司 | The battery protection system of battery signal collection module and the application battery signal collection module |
| CN110370988A (en) * | 2019-07-15 | 2019-10-25 | 重庆工商大学 | New energy car battery is for electric regulating system |
| CN110588376A (en) * | 2019-09-16 | 2019-12-20 | 成都航天科工微电子系统研究院有限公司 | Voltage-dividing type battery pack power supply system |
| CN114043901A (en) * | 2021-11-09 | 2022-02-15 | 上海平野环保科技有限公司 | Protection method for lithium battery and lithium battery |
| CN114043901B (en) * | 2021-11-09 | 2024-01-09 | 上海平野环保科技有限公司 | Protection method for lithium battery and lithium battery |
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Application publication date: 20110525 |