CN102426339A - Voltage collecting circuit for monomer batteries of battery pack - Google Patents
Voltage collecting circuit for monomer batteries of battery pack Download PDFInfo
- Publication number
- CN102426339A CN102426339A CN2011102847767A CN201110284776A CN102426339A CN 102426339 A CN102426339 A CN 102426339A CN 2011102847767 A CN2011102847767 A CN 2011102847767A CN 201110284776 A CN201110284776 A CN 201110284776A CN 102426339 A CN102426339 A CN 102426339A
- Authority
- CN
- China
- Prior art keywords
- voltage
- circuit
- solid
- bus
- microcontroller
- Prior art date
- 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.)
- Pending
Links
Images
Landscapes
- Secondary Cells (AREA)
Abstract
The invention relates to a voltage collecting circuit for monomer batteries of a battery pack. After voltages of the monomer batteries of the power battery pack are isolated and sampled by employing a solid-state relay, a signal conditioning and isolating circuit and a microcontroller in a matching manner, the voltages are fed into an A/D (Analog-to-Digital) passage of the microcontroller for analog-to-digital conversion; the microcontroller is used for rapidly controlling two paths of solid-state relays connected with two electrodes of any monomer battery to operate at the same moment, thus, a terminal voltage of the corresponding monomer battery can be obtained on a sampling bus; simultaneously, as for electrical security, a terminal voltage signal, obtained from the battery pack, of the monomer battery needs to be isolated by an isolation amplifier, then can be input to the A/D passage of the microcontroller; and the process above is suitable for the voltage collecting circuit for the monomer batteries of the power battery pack. The circuit is low in cost, simple and practical, as well as safe and reliable.
Description
Technical field
The present invention relates to the battery management system field, relate in particular to a kind of monomer battery voltage Acquisition Circuit.
Background technology
The new situations of global energy and environment are just impelling countries in the world to accelerate transportation and energy's strategic transformation; New-energy automobile becomes the direction of following development of automobile just gradually; Battery is as the main power source or the auxiliary power source of new forms of energy vehicle, and its technology is one of principal element of restricting current new forms of energy vehicle development.Electrokinetic cell since most current cost also than higher, limited as the vehicle power source distance travelled, serviceable life is very limited, has so just had a strong impact on the popularization of new forms of energy batteries.For this reason, on existing battery technology basis, through the scientific management to battery, can make its life-span obtain prolonging, use cost is reduced, and security protection is protected.
The management of electrokinetic cell relates to the accurate detection of battery operated parameter, estimation, balance charge/discharge control, fault diagnosis and the security protection etc. of SOC.The detection of wherein relevant battery operated parameter is the basis of battery management, has only guaranteed the running parameter exact acquisition to every joint cell in the power battery pack, can estimate for SOC, balance charge/discharge control, fault diagnosis, security protection provides foundation; Wherein the voltage to every joint cell in the power battery pack detects extremely important in real time; Because the Vehicular dynamic battery group is to be made up of a lot of joint cells and string; Its voltage ratio vehicle control system electric system voltage is much higher, and the key when measuring the voltage of every joint cell is the sampling to every joint monomer battery voltage.Because the cell quantity of power battery pack serial connection is more, the voltage of formation is also higher, so micro controller system can not carry out cell voltage sampling detection to multiple batteries by synchronization, can only sample a joint cell at the synchronization micro control system.
In application such as accumulator system, battery backup system, also need monitor, need to use battery management system to gather the monomer battery voltage of electric battery electric battery.
Sampling method to monomer battery voltage also has much aspect battery management at present.One of which; Useful special intelligent battery monitoring IC chip, like LTC6803 battery detecting chip, its every voltage and the temperature monitoring of expansion that can monitor 12 joint cells; Record data and be transferred to micro control system through spi bus; But measured object is defined as lithium battery, and its nude film cost is higher, adds that forming the Acquisition Circuit cost behind the necessary peripheral components reaches 1 dollar of every batteries at least.Its two, use relay (can make the photoelectric-isolated relay, also can be coil type relay) matrix; The corresponding a pair of relay of every batteries promptly by the N batteries, just needs with 2N road relay; Control through microcontroller; Make at synchronization and guarantee the special relay work that connects any cell the two poles of the earth, can gating should the joint cell, then the monomer battery voltage signal that obtains is sent into the A/D passage of microcontroller after through filtering, conditioning, amplification.This method uses relay quantity too many, and especially coil type relay is slow time response, can influence the touring real-time that detects; Its three, use electronic switch matrix, make the corresponding pair of electronic switches of every joint cell, similar second kind of its control sampling thought, this method is used electronic switch in a large number, complicated circuit, integrated level are not high; Following method is proposed for this reason; Use relay, with method two, three different be the corresponding single-contact relay of node of each connection of power battery pack of serial connection, the N batteries is arranged; Use N+1 relay; Because connect the both positive and negative polarity of cell on disconnecting relay (electric battery two ends except) the corresponding node both sides of electric battery node, so monomer battery voltage that is obtained or plus or minus, the positive/negative voltage signal that is obtained is just all being got through signal conditioning circuit; Consider from electrical safety afterwards, after isolating processing and amplifying, send into microcontroller again.This method makes that circuit cost is low, simple and practical, safety.
Summary of the invention
The purpose of this invention is to provide a kind of low cost, simple and practical, safe Vehicular dynamic battery monomer battery voltage Acquisition Circuit, solve in the existing method that precision is low, complicated circuit, cost height and real-time problem.
For realizing above-mentioned purpose, the present invention realizes through following technical proposals.
Power battery pack monomer battery voltage Acquisition Circuit comprises cell voltage routing inspection circuit, signal condition and buffer circuit, microcontroller three parts; The system design electric battery contains the electrokinetic cell of N joint series connection; 1≤N≤A wherein, A=Vbr/Vmax, Vbr are the solid-state relay withstand voltage; Vmax is the cell ceiling voltage; Obtain the voltage of specific monocell by microprocessor controls cell voltage routing inspection circuit, go into microcontroller AD passage, obtain the voltage of this specific monocell through signal condition and buffer circuit lossless process are laggard.
Said cell voltage routing inspection circuit, the electric battery of forming for the series connection of N batteries, its total N+1 battery node; To in requisition for N+1 solid-state relay; Solid-state relay has higher response speed, and the withstand voltage of solid-state relay needs the total voltage upper limit greater than power battery pack, can select withstand voltage lower solid-state relay to reduce the cost of circuit in the scope that meets; Solid-state relay is directly controlled by microcontroller, uses microcontroller to supply power with power supply; Each battery node (N) of the power battery pack of series connection connects with output one end (Re_n_4) of a corresponding solid-state relay (Re_n) through a current-limiting resistance (Rn); The output other end (Re_n_3) of all odd number solid-state relays links together; Form sampling bus B us-A; The output other end (Re_n_3) of all even number solid-state relays links together, and forms sampling bus B us-B, and sampling bus B us-A and Bus-B form the sampling bus.If need obtain the terminal voltage of N batteries; Microprocessor controls solid-state relay Re_n and Re_n+1 are closed; Then the terminal voltage of N batteries is passed to sampling bus B us-A and sampling bus B us-B through solid-state relay; This voltage deducts sampling bus B us-B voltage for sampling bus B us-A voltage, if for the N+1 batteries, the terminal voltage that same mode can be obtained the N+1 batteries deducts sampling bus B us-A voltage for sampling bus B us-B voltage; The cell voltage that gets access on sampling bus B us-A and the sampling bus B us-B is positive and negative alternating signals; At any time, microcontroller only needs on request adjacent arbitrarily N road and N+1 road relay to be connected, and just can select N joint cell, and its terminal voltage just can be obtained on the sampling bus, can realize the real-time voltage monitoring to power battery pack.It should be noted that the voltage that can only obtain a batteries at any time; It is adjacent two-way solid-state relay closure; Forbid non-adjacent 2 or any solid-state relay of isolating more than 2 to be connected simultaneously; Otherwise the voltage signal that is obtained just may surpass measurement range or battery short circuit, and battery and circuit are suffered damage.
Said signal condition and buffer circuit; Form by devices such as bipolarity operational amplifier, isolated amplifier, voltage-reference and resistance, electric capacity, diodes; Bipolarity operational amplifier, isolated amplifier input stage adopt independently bipolar power supply power supply, and the output stage of isolated amplifier adopts and microcontroller bipolar power supply power supply altogether; Sampling bus B us-B links to each other with the ground of the bipolarity operational amplifier of signal condition and buffer circuit; Sampling bus B us-A is connected with the bipolarity operational amplifier in-phase end of signal condition and buffer circuit; Forming follower output signal is handled by the absolute value circuit of signal condition and buffer circuit; Because the input current of bipolarity operational amplifier is the uA level; System is not from electric battery ABSORPTION CURRENT and the basic not decay after the sampling bus of cell terminal voltage signal; To the take a sample voltage of bus of follower cushions, afterwards with the positive and negative alternate voltages difference of cell voltage routing inspection circuit sampling bus B us-A and sampling bus B us-B convert on the occasion of, signal is carried out lossless process after isolated amplifier passes to microcontroller handles; For the higher applicable cases of electric battery single battery voltage, signal conditioning circuit can carry out convergent-divergent to sampled voltage, makes this voltage can meet the process range of microcontroller.Because the total voltage of tested power battery pack is higher; In order to ensure the electrical safety of cell voltage Acquisition Circuit microcontroller and complementary work thereof ability circuit; Adopt 1: 1 isolated amplifier of high-precision low-power consumption; It from electric isolation, guarantees the sampling and measuring security of system with tested electric battery and microcontroller.The A/D passage of microcontroller is sent in the output of isolated amplifier after holding circuit.Its temperature can change when battery operated; Cause the environment temperature of sample circuit metering circuit to change; Will cause the inaccurate of measurement data, voltage-reference voltage is constant, according to the voltage signal of the reference power supply that records with variation of temperature; Monomer battery voltage to measuring carries out temperature compensation, can make that also the monomer battery voltage that records is more accurate.Long-term work causes the enlargement factor of component parameter and operational amplifier to change, and reference power supply voltage can not change.Because the variation of circuit devcie parameter, the reference power supply voltage that records also changes, and the influence of this variation is equal basically as far as measured monomer battery voltage.Next for referencial use with the reference voltage that records, monomer battery voltage to be revised, the degree of accuracy of the monomer battery voltage that obtains just can be guaranteed.
Said microcontroller adopts to have 12 or higher AD translation interface, and has the single-chip microcomputer greater than 5 I/O output interfaces; Microcontroller is according to specific strategy, and every separated control of specific time cell voltage Acquisition Circuit is carried out voltage to electric battery and carried out touring collection successively.
Advantage of the present invention:
System has higher sampling precision;
The response speed piece of solid-state relay, system has higher real-time;
System is succinctly practical, and the chief component solid-state relay can require to select according to applied voltage, and cost is had control preferably, and solid-state relay has long serviceable life as the circuit main devices;
System is with good expansibility, and can carry out exaptation to different application, can be used for the field of Vehicular dynamic battery or all the other use series batteries.
Description of drawings
Fig. 1 is a system architecture schematic diagram of the present invention.
Fig. 2 is a cell voltage routing inspection circuit principle schematic of the present invention.
Fig. 3 is the circuit theory diagrams of the cell voltage routing inspection circuit of a kind of application of the present invention.
Fig. 4 is the signal condition and the isolating amplifier circuit schematic diagram of a kind of application of the present invention.
Fig. 5 is the microcontroller circuit schematic diagram of a kind of application of the present invention.
Embodiment
Like accompanying drawing 3,4, shown in 5, below with gather 20 the joint cells be that example is described embodiment of the present invention.This embodiment all is suitable for ni-mh and lithium battery detection.
Cell voltage routing inspection circuit of the present invention is seen Fig. 3, and this circuit mainly constitutes by being numbered 11 the two-way solid-state relay AQW214 chips and the line of IC1 to IC11.And only need provide No. 21 solid-state relay paths to get final product; Each path is connected on the electrode of battery through a current-limiting resistance and line; Need gating 20 batteries altogether; So be numbered 21 the sampling current-limiting resistances of R22 to R42 to having; One end of 21 current-limiting resistances of R22 to R42 connects 21 electrodes of the Polar (1) of electric battery to Polar (21) respectively; The other end connects the 8th pin and the 6th pin of IC1 to IC11 respectively; Go back reference numeral simultaneously and be Control-1 to 21 control ends of Control-21 also need be numbered 21 current-limiting resistance one ends of R1 and be connected to R21, the other end of current-limiting resistance R1 to R21 connects the 2nd pin and the 4th pin of IC1 to IC11 respectively, Control-1 directly is connected respectively on the 17th, 18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,49,50,51,52,53 ports of microcontroller to 21 control ends of Control-21 again; The 7th pin of IC1 to IC11 all is connected on the Bus-B; Its 5th pin all is connected on the Bus-A, and the 1st and the 3rd pin of solid-state relay meets working power Vs2 respectively, and the power supply source of this power supply and microcontroller belongs to same electric system; At synchronization, microcontroller only needs on request adjacent arbitrarily N road and N+1 road solid-state relay to be connected, and just can select N joint cell, and its terminal voltage just can be obtained on Bus-A and Bus-B bus.Bus-A links to each other with the input end of signal conditioning circuit with the Bus-B bus, and Bus-A connects the 3rd pin of signal conditioning circuit chip IC 12, and Bus-B connects the power supply ground GND1 of signal conditioning circuit.
Signal condition and buffer circuit: this circuit is as shown in Figure 4; By 1 four high guaily unit IC chip NCV2902,1 isolated amplifier ISO124 and resistance R 43, R44, R45, R46, R47, R48, R49, R50; Capacitor C 1, C2; Diode D1, D1, voltage stabilizing diode D3 forms, and has wherein only used the 1st, the 2nd, the 4 road operational amplification circuit among the four-operational amplifier NCV2902.The operational amplifier working power is provided by the Vs1 power supply.Through absolute value circuit obtaining battery voltage value is just all being got, so can inputed to the A/D ALT-CH alternate channel of microcontroller.The sampling voltage bus B us-A of cell voltage routing inspection circuit connects the 1st operational amplification circuit in-phase input end (the 3rd pin of NCV2902) of NCV2902; Sampling voltage bus B us-B connects the earth terminal GND1 of Vs1; The output signal of signal conditioning circuit inputs to the 27th pin of isolating amplifier circuit IC13 then by the 14th pin output of NCV2902.Optical isolation amplifier is used ISO124, and its supplying power for input end source is consistent with the power supply source of battery voltage signal modulate circuit, the 1st, 2,28 pins of ISO124 connect respectively power supply Vs1+Vs1 ,-Vs1, GND1; Its output terminal power supply source is consistent with the power supply source of micro controller system, the 15th, 16,14 pins of ISO124 connect respectively power supply Vs2+Vs2 ,-Vs2, GND2; NCV2902 output signal end the 14th pin links to each other with input end 27 pins of ISO124; The voltage measurement signal of last battery is sent into the 61st pin of microcontroller again through the output terminal 13 pins output of ISO124 through the filtering amplitude limiter circuit of being made up of capacitor C 3, resistance R 52, R51, voltage stabilizing diode D4.
Micro-control processor: adopted Freescale company 8-bit microprocessor MC9S08DZ60; It has 53 I/O mouths; 24 tunnel 12 AD ALT-CH alternate channel is arranged wherein; Main completion is carried out the A/D conversion to the control of the solid-state relay of battery routing inspection circuit and to the battery voltage signal that samples; Simultaneously, microcontroller also will be accomplished the sampling processing to battery total voltage, electric current and battery temperature in the entire cell management system, to the control of the estimation of battery charge state SOC, battery failures diagnosis etc.Because what the core devices of battery routing inspection circuit used is solid-state relay, so the control address selection wire of the solid-state relay of battery routing inspection circuit can directly use any I/O port of microprocessor to get final product.
The 17th, 18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,49,50,51,52,53 ports of microcontroller are connected to 21 control ends of Control-21 with the Control-1 of cell voltage routing inspection circuit respectively, and the cell voltage routing inspection circuit will be guaranteed isolation from electric going up with the power supply source of microprocessor here.Crystal oscillator X1 among Fig. 5, capacitor C 4 and C5, resistance R 53 are formed microcontrolled clock oscillation circuit; Resistance R 54 and capacitor C 6 are formed the reset circuit of microcontrollers among Fig. 5; The 7th pin of microcontroller meets power supply+Vs2, and the 8th pin meets the earth terminal GND2 of Vs2, between the 7th, 8 pins and meet capacitor C 9, C10; The 39th pin of microcontroller meets power supply+Vs2, and the 38th pin meets the earth terminal GND2 of Vs2, between the 39th, 38 pins and meet capacitor C 7, C8; The 57th, 58 pins of microcontroller meet power supply+Vs2, and the 55th, 56 pins meet the earth terminal GND2 of Vs2, ask and connect capacitor C 11, C12 at the 57th, 58 and 55,56 pins; Input to 61 pins of microcontroller from the battery voltage signal Vcell of isolated amplifier output.
The present invention is not limited to the foregoing description, and protection scope of the present invention is all classified in any equivalent concepts or change in the technical scope that the present invention discloses as.
Claims (3)
1. a batteries monomer battery voltage Acquisition Circuit is made up of cell voltage routing inspection circuit, signal condition and buffer circuit, microcontroller three parts; It is characterized in that: microprocessor controls voltage polling circuit obtains the specific monomer battery terminal voltage; Through converting the voltage signal that microcontroller can directly be handled into after signal condition and the buffer circuit lossless process, can obtain corresponding cell terminal voltage signal after the microcontroller A/D conversion.
2. batteries monomer battery voltage Acquisition Circuit as claimed in claim 1 is characterized in that: said cell voltage routing inspection circuit is made up of the solid-state relay of specific quantity; Each node in the series connected battery group all is connected respectively to a side output pin of No. 1 solid-state relay, and the opposite side output pin of all odd number solid-state relays is connected to BUS-A, and the opposite side output pin of all even number solid-state relays is connected to BUS-B; The series connection of N joint cell, a corresponding N+1 node and N+1 solid-state relay, wherein 1≤N≤A; A=Vbr/Vmax; Vbr is the solid-state relay withstand voltage, and Vmax is the cell ceiling voltage, any time; Choose adjacent two solid-state relay Re_n, Re_n+1, can obtain N joint cell terminal voltage through BUS-A, BUS-B.
3. batteries monomer battery voltage Acquisition Circuit as claimed in claim 1; It is characterized in that: sampling bus B US-B links to each other with the ground of signal condition and buffer circuit; Sampling bus B US-A is connected with the bipolarity operational amplifier in-phase end of signal condition and buffer circuit; Form follower output signal and handled by the absolute value circuit of signal condition and buffer circuit, the monomer battery voltage signal is undamped on the sampling bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102847767A CN102426339A (en) | 2011-09-03 | 2011-09-03 | Voltage collecting circuit for monomer batteries of battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102847767A CN102426339A (en) | 2011-09-03 | 2011-09-03 | Voltage collecting circuit for monomer batteries of battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102426339A true CN102426339A (en) | 2012-04-25 |
Family
ID=45960344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102847767A Pending CN102426339A (en) | 2011-09-03 | 2011-09-03 | Voltage collecting circuit for monomer batteries of battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102426339A (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103616557A (en) * | 2013-10-29 | 2014-03-05 | 广东易事特电源股份有限公司 | A voltage detecting circuit for single batteries in a series storage battery set, a detecting method for the same, and a detecting device for the same |
| CN103837831A (en) * | 2012-11-30 | 2014-06-04 | 凯迈(洛阳)电子有限公司 | Battery effectiveness analyzing model |
| WO2014094597A1 (en) * | 2012-12-21 | 2014-06-26 | Shenzhen Byd Auto R&D Company Limited | Battery pack fault detection device and method for detecting fault of battery pack |
| CN104749523A (en) * | 2013-12-25 | 2015-07-01 | 天维讯达无线电设备检测（北京）有限责任公司 | Device for acquiring electrical characteristics of lithium battery pack |
| CN104991198A (en) * | 2015-07-11 | 2015-10-21 | 安徽继远电网技术有限责任公司 | Battery tour inspection processing circuit based on ARM platform multichannel switching |
| WO2015165147A1 (en) * | 2014-04-29 | 2015-11-05 | 江苏华东锂电技术研究院有限公司 | Lithium battery pack temperature and voltage monitoring system |
| CN105403840A (en) * | 2015-10-29 | 2016-03-16 | 湖北三江航天红阳机电有限公司 | Thermal battery tester |
| CN106231723A (en) * | 2016-08-02 | 2016-12-14 | 惠勇 | A kind of EMI Filtering LED drive power |
| CN107085189A (en) * | 2017-06-08 | 2017-08-22 | 中国工商银行股份有限公司 | UPS power failure monitoring device |
| CN107171033A (en) * | 2017-05-18 | 2017-09-15 | 江苏中天科技软件技术有限公司 | A kind of large-scale energy-storage system |
| CN107591572A (en) * | 2016-07-06 | 2018-01-16 | 深圳市沃特玛电池有限公司 | Battery management system acquisition module automatic number system and method |
| CN107656208A (en) * | 2017-08-21 | 2018-02-02 | 上海空间电源研究所 | Space samples integration module with single battery voltage high accuracy |
| WO2018076807A1 (en) * | 2016-10-28 | 2018-05-03 | 宁德时代新能源科技股份有限公司 | Method and device for spark detection and detection system |
| CN109031149A (en) * | 2018-08-30 | 2018-12-18 | 重庆长安汽车股份有限公司 | A kind of unitized method of realization storage battery sensor |
| CN109213251A (en) * | 2018-11-01 | 2019-01-15 | 深圳市质能达微电子科技有限公司 | Voltage sample based on BMS scales circuit |
| CN112117797A (en) * | 2020-09-09 | 2020-12-22 | 深圳大学 | Defibrillation discharging device and defibrillation method |
| CN116774091A (en) * | 2023-08-24 | 2023-09-19 | 南京市计量监督检测院 | High-precision power battery pack SOH online measurement system and method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001218376A (en) * | 2000-02-03 | 2001-08-10 | Toyota Motor Corp | Device and method for controlling charring condition of single batteries constituting batter pack, and battery module using device, and electric-motor vehicle |
| US6462510B1 (en) * | 1998-09-11 | 2002-10-08 | Matsushita Electric Industrial Co., Ltd. | Battery voltage detector |
| CN1614440A (en) * | 2003-11-07 | 2005-05-11 | 上海燃料电池汽车动力系统有限公司 | Voltage measuring circuit of single accumulator |
| CN101603981A (en) * | 2008-06-11 | 2009-12-16 | 上海汽车集团股份有限公司 | The monomer battery voltage measurement circuit of multi-section serial battery pack system for automobile |
| CN201903579U (en) * | 2010-12-08 | 2011-07-20 | 广东高新兴通信股份有限公司 | Measuring device for carrying out online measurement on voltage of 48 monomer batteries |
-
2011
- 2011-09-03 CN CN2011102847767A patent/CN102426339A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6462510B1 (en) * | 1998-09-11 | 2002-10-08 | Matsushita Electric Industrial Co., Ltd. | Battery voltage detector |
| JP2001218376A (en) * | 2000-02-03 | 2001-08-10 | Toyota Motor Corp | Device and method for controlling charring condition of single batteries constituting batter pack, and battery module using device, and electric-motor vehicle |
| CN1614440A (en) * | 2003-11-07 | 2005-05-11 | 上海燃料电池汽车动力系统有限公司 | Voltage measuring circuit of single accumulator |
| CN101603981A (en) * | 2008-06-11 | 2009-12-16 | 上海汽车集团股份有限公司 | The monomer battery voltage measurement circuit of multi-section serial battery pack system for automobile |
| CN201903579U (en) * | 2010-12-08 | 2011-07-20 | 广东高新兴通信股份有限公司 | Measuring device for carrying out online measurement on voltage of 48 monomer batteries |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103837831A (en) * | 2012-11-30 | 2014-06-04 | 凯迈(洛阳)电子有限公司 | Battery effectiveness analyzing model |
| WO2014094597A1 (en) * | 2012-12-21 | 2014-06-26 | Shenzhen Byd Auto R&D Company Limited | Battery pack fault detection device and method for detecting fault of battery pack |
| US9835688B2 (en) | 2012-12-21 | 2017-12-05 | Byd Company Limited | Battery-pack fault detecting device and method for detecting fault of battery-pack |
| CN103616557A (en) * | 2013-10-29 | 2014-03-05 | 广东易事特电源股份有限公司 | A voltage detecting circuit for single batteries in a series storage battery set, a detecting method for the same, and a detecting device for the same |
| CN104749523A (en) * | 2013-12-25 | 2015-07-01 | 天维讯达无线电设备检测（北京）有限责任公司 | Device for acquiring electrical characteristics of lithium battery pack |
| WO2015165147A1 (en) * | 2014-04-29 | 2015-11-05 | 江苏华东锂电技术研究院有限公司 | Lithium battery pack temperature and voltage monitoring system |
| CN104991198A (en) * | 2015-07-11 | 2015-10-21 | 安徽继远电网技术有限责任公司 | Battery tour inspection processing circuit based on ARM platform multichannel switching |
| CN105403840A (en) * | 2015-10-29 | 2016-03-16 | 湖北三江航天红阳机电有限公司 | Thermal battery tester |
| CN107591572A (en) * | 2016-07-06 | 2018-01-16 | 深圳市沃特玛电池有限公司 | Battery management system acquisition module automatic number system and method |
| CN106231723A (en) * | 2016-08-02 | 2016-12-14 | 惠勇 | A kind of EMI Filtering LED drive power |
| CN106231723B (en) * | 2016-08-02 | 2018-10-26 | 惠勇 | A kind of EMI Filtering LED drive power |
| WO2018076807A1 (en) * | 2016-10-28 | 2018-05-03 | 宁德时代新能源科技股份有限公司 | Method and device for spark detection and detection system |
| CN107171033B (en) * | 2017-05-18 | 2023-07-07 | 江苏中天互联科技有限公司 | Large-scale energy storage system |
| CN107171033A (en) * | 2017-05-18 | 2017-09-15 | 江苏中天科技软件技术有限公司 | A kind of large-scale energy-storage system |
| CN107085189A (en) * | 2017-06-08 | 2017-08-22 | 中国工商银行股份有限公司 | UPS power failure monitoring device |
| CN107656208A (en) * | 2017-08-21 | 2018-02-02 | 上海空间电源研究所 | Space samples integration module with single battery voltage high accuracy |
| CN109031149A (en) * | 2018-08-30 | 2018-12-18 | 重庆长安汽车股份有限公司 | A kind of unitized method of realization storage battery sensor |
| CN109213251A (en) * | 2018-11-01 | 2019-01-15 | 深圳市质能达微电子科技有限公司 | Voltage sample based on BMS scales circuit |
| CN112117797A (en) * | 2020-09-09 | 2020-12-22 | 深圳大学 | Defibrillation discharging device and defibrillation method |
| CN116774091A (en) * | 2023-08-24 | 2023-09-19 | 南京市计量监督检测院 | High-precision power battery pack SOH online measurement system and method thereof |
| CN116774091B (en) * | 2023-08-24 | 2023-10-17 | 南京市计量监督检测院 | High-precision power battery pack SOH online measurement system and method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102426339A (en) | Voltage collecting circuit for monomer batteries of battery pack | |
| CN202330663U (en) | Voltage collecting circuit for single battery of battery pack | |
| CN107839500B (en) | Lithium battery pack balance control method and system for dynamically correcting SOC | |
| CN106471699B (en) | A kind of the dynamic equalization circuit and its method for dynamically balancing of battery management system | |
| CN205178581U (en) | Lithium ion power batteries management system | |
| CN208109933U (en) | A kind of insulating resistor detecting circuit | |
| CN201508409U (en) | Intelligent battery data logging device | |
| CN100516916C (en) | Circuit for measuring synchronized sampler of flying capacitance | |
| CN203786271U (en) | Device for testing state of charge (SOC) of electric automobile battery pack | |
| CN205122716U (en) | Battery management system of electric car | |
| CN109278589A (en) | Two-way active equalization batteries of electric automobile monitoring system and control method based on PIC single chip microcomputer | |
| CN104734228A (en) | Solar panel measuring circuit of solar charge controller of common positive pole structure | |
| CN102967831B (en) | On-line detection system and detection method of lead-acid storage battery performance | |
| CN207753126U (en) | A kind of lithium battery management system | |
| CN103323646A (en) | Current sensor for electric vehicle and detecting method by means of same | |
| CN105158632A (en) | Power cell insulation and leakage detection system | |
| CN102928789A (en) | Distributed detection method with vibration and temperature and humidity detection for lithium battery pack | |
| CN102721928A (en) | Storage battery parameter monitor and parameter monitoring method | |
| CN205622283U (en) | Management device for batteries of electric vehicles | |
| CN102165626A (en) | Multiple series/multiple parallel battery pack | |
| CN103171451A (en) | Battery management system based on co-processor and solid-state relay | |
| CN103293355B (en) | A kind of tension measuring circuit | |
| CN206038760U (en) | A battery voltage acquisition circuit for battery management system | |
| CN205945121U (en) | Battery management system's dynamic equalizer circuit | |
| CN202614914U (en) | Storage battery parameter monitor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120425 |