CN102723754A - Identifying circuit and identifying method of broken line of battery pack acquisition line of battery management system - Google Patents
Identifying circuit and identifying method of broken line of battery pack acquisition line of battery management system Download PDFInfo
- Publication number
- CN102723754A CN102723754A CN2012101785289A CN201210178528A CN102723754A CN 102723754 A CN102723754 A CN 102723754A CN 2012101785289 A CN2012101785289 A CN 2012101785289A CN 201210178528 A CN201210178528 A CN 201210178528A CN 102723754 A CN102723754 A CN 102723754A
- Authority
- CN
- China
- Prior art keywords
- line
- voltage
- broken string
- total
- battery
- 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.)
- Granted
Links
Images
Landscapes
- Secondary Cells (AREA)
Abstract
The invention discloses an identifying circuit and an identifying method of a broken line of a battery pack acquisition line of a battery management system. The identifying circuit comprises a voltage sampling chip, anode acquisition lines and cathode acquisition lines, wherein the anode acquisition lines are connected between a total anode end of the voltage sampling chip and each battery monomer of the battery pack; the cathode acquisition lines are connected between a total cathode end of the voltage sampling chip and each battery monomer of the battery pack; and switches which can be controlled independently are connected in series between each cathode acquisition line and each anode acquisition line. With the adoption of the identifying method, a broken acquisition line can be identified rapidly and conveniently. With the adoption of the identifying circuit and the identifying method, an acquisition line breaking fault can be reported and the number of the broken line can be reported, so that the maintenance is convenient, whether the acquisition line is broken can be judged in time, the precision in estimation of the left electricity quantity of a battery management system is improved, and the broadcasting on other functions such as overlow monomer voltage, overlow total voltage and the like is convenient.
Description
Technical field
The present invention relates to the improvement technology of a kind of battery management system for the battery set management monitoring technique.
Background technology
Battery management system (BMS) is provided with collection line, the parameter that is used for gathering each battery pack battery cell when administration battery pack.But present battery management system is not all gathered line broken string recognition function, can not report this unusual timely, and the dump energy of battery pack is to be the control threshold values with the minimum voltage, and this is to battery status estimation, battery failures forecast and battery maintenance.
Summary of the invention
In view of this, one of the present invention's technical problem that will solve provides a kind of battery management system of realizing the battery management system battery pack of respectively gathering the line broken string in the battery pack and judging is gathered line broken string identification circuit.
In order to solve the problems of the technologies described above, this technical problem adopts following scheme to solve:
A kind of battery management system battery pack is gathered line broken string identification circuit; This identification circuit comprise a voltage sample chip and be connected in the total anode of this voltage sample chip and each battery cell of battery pack between each anodal each negative pole of gathering line, being connected between the total negative terminal of this voltage sample chip and each battery cell of battery pack gather line, in each negative pole is gathered line and each positive pole collection line, all be in series with separately controllable switch.
And, on each collection line, all be in series with divider resistance, all be connected with protection electric capacity at each battery cell two ends.
But another technical problem that the present invention will solve provides a kind of battery management system battery pack and gathers the recognition methods of line broken string, accurately identifies to express delivery which root and gathers the line broken string.
In order to solve the problems of the technologies described above, this technical problem adopts following scheme to solve:
A kind of battery management system battery pack is gathered the recognition methods of line broken string, and this recognition methods comprises the steps:
1), battery management system energising, the self check of voltage sample chip is if self check is normally then carry out next step;
2), detect the total anode of voltage sample chip and total negative terminal voltage; Judge whether the total anode of voltage sample chip and total negative terminal exist broken string; If detect all batteries monomer voltage all is 0; Then be judged as the total anode of voltage sample chip or total negative terminal broken string, do not have broken string with total negative terminal, then get into following detection, judge each battery cell collection line broken string identification step otherwise be judged as the total anode of voltage sample chip;
3), if detect the 1st battery cell or N battery cell no-voltage, other battery cell has any one group of voltage normal, judges that then the 1st or N+1 root gather line and break; If detect the 1st with the 2nd battery cell no-voltage all, other has any Battery pack monomer voltage normal, judges that then gathering line for the 2nd breaks; Whether if (N-1) and N battery cell be no-voltage all, other has any Battery pack monomer voltage normal, judges that then the N root gathers line and break, detect N root collection line thus one by one and break.
And, above-mentioned 2) be provided with total voltage before the step and detect step, this total voltage detects step if detecting all battery cell voltage additions equals total voltage, judges that then respectively gathering line does not all have broken string; If all monomer voltage additions less than total voltage, then get into 3) step.
Compared with prior art, the present invention has following advantage:
1. can report and gather the line disconnection fault, and report the broken string wire size, maintain easily;
2. can judge in time whether gather line breaks, improve the precision of battery management system estimation dump energy;
3, make battery management system have the disconnection fault reporting functions, thereby made things convenient for other function such as monomer voltage is low excessively, total voltage is crossed function such as low forecast.
Description of drawings
Fig. 1 is that embodiment of the invention battery management system battery pack is gathered line broken string identification circuit principle schematic.
Embodiment
Below will combine accompanying drawing and embodiment that the present invention is described in further detail for the ease of it will be appreciated by those skilled in the art that:
It is the improvement on existing battery management system battery set management circuit that the battery management system battery pack that present embodiment discloses is gathered line broken string identification circuit; Make it to have the broken string recognition function, diagnose out quickly and easily whether to exist battery cell to gather line broken string and any bar broken string.
The present embodiment designed circuit comprises a voltage sample chip 1 and each anodal each negative pole of gathering line 4, being connected between this voltage sample chip 1 total negative terminal and each battery cell 3 of battery pack of being connected between this voltage sample chip 1 total anode and each battery cell 3 of battery pack is gathered line 5, in each negative pole is gathered line 5 and each positive pole collection line, all is in series with separately controllable switch 6.And, on each collection line, all be in series with divider resistance 7, all be connected with protection electric capacity 8 at each battery cell 3 two ends.Through preset control detection recognizer, the break-make that switch 6 in the line is respectively gathered in battery management system control, voltage sample chip 1 obtains the magnitude of voltage in the corresponding collection line, gathers the line broken string thereby identify which bar, and concrete recognition methods step is following:
1), battery management system energising, the self check of voltage sample chip is if self check is normally then carry out next step;
2), detect the total anode of voltage sample chip and total negative terminal voltage; Judge whether the total anode of voltage sample chip and total negative terminal exist broken string; If detect all batteries monomer voltage all is 0; Then be judged as the total anode of voltage sample chip or total negative terminal broken string, do not have broken string with total negative terminal, then get into following detection, judge each battery cell collection line broken string identification step otherwise be judged as the total anode of voltage sample chip;
3), if detect the 1st battery cell or N battery cell no-voltage, other battery cell has any one group of voltage normal, judges that then the 1st or N+1 root gather line and break; If detect the 1st with the 2nd battery cell no-voltage all, other has any Battery pack monomer voltage normal, judges that then gathering line for the 2nd breaks; Whether if (N-1) and N battery cell be no-voltage all, other has any Battery pack monomer voltage normal, judges that then the N root gathers line and break, detect N root collection line thus one by one and break.
And, above-mentioned 2) be provided with total voltage before the step and detect step, this total voltage detects step if detecting all battery cell voltage additions equals total voltage, judges that then respectively gathering line does not all have broken string; If all monomer voltage additions less than total voltage, then get into 3) step.
In above-mentioned steps is provided with, also be provided with in particular cases a step: when the 2nd or N root were gathered the line broken string, no matter whether the 1st or the collection of N+1 root break, program all was identified as broken string.When the adjacent 2 collection lines in middle 1 collection line both sides all break, gather line in the middle of this root and all unify to be identified as broken string no matter whether break.
Through said method, can find out the collection line apace and whether exist broken string and which bar to gather the line broken string.
More than be wherein concrete implementation of the present invention, it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the present invention's design, can also make some distortion and improvement, these conspicuous replacement forms all belong to protection scope of the present invention.
Claims (5)
1. a battery management system battery pack is gathered line broken string identification circuit; It is characterized in that; This identification circuit comprise a voltage sample chip (1) and be connected in the total anode of this voltage sample chip and each battery cell of battery pack (3) between each anodal each negative pole of gathering line (4), being connected between the total negative terminal of this voltage sample chip and each battery cell of battery pack gather line (5), in each negative pole is gathered line and each positive pole collection line, all be in series with separately controllable switch (6).
2. battery management system battery pack according to claim 1 is gathered line broken string identification circuit, it is characterized in that, gathers on the line and all is in series with divider resistance (7) at each, all is connected with protection electric capacity (8) at each battery cell two ends.
3. a battery management system battery pack is gathered the recognition methods of line broken string, it is characterized in that this recognition methods comprises the steps:
1), battery management system energising, the self check of voltage sample chip is if self check is normally then carry out next step;
2), detect the total anode of voltage sample chip and total negative terminal voltage; Judge whether the total anode of voltage sample chip and total negative terminal exist broken string; If detect all batteries monomer voltage all is 0; Then be judged as the total anode of voltage sample chip or total negative terminal broken string, do not have broken string with total negative terminal, then get into following detection, judge each battery cell collection line broken string identification step otherwise be judged as the total anode of voltage sample chip;
3), if detect the 1st battery cell or N battery cell no-voltage, other battery cell has any one group of voltage normal, judges that then the 1st or N+1 root gather line and break; If detect the 1st with the 2nd battery cell no-voltage all, other has any Battery pack monomer voltage normal, judges that then gathering line for the 2nd breaks; Whether if (N-1) and N battery cell be no-voltage all, other has any Battery pack monomer voltage normal, judges that then the N root gathers line and break, detect N root collection line thus one by one and break.
4. battery management system battery pack according to claim 3 is gathered the recognition methods of line broken string; It is characterized in that; Above-mentioned 2) be provided with total voltage before the step and detect step; This total voltage detects step if detecting all battery cell voltage additions equals total voltage, judges that then respectively gathering line does not all have broken string; If all monomer voltage additions less than total voltage, then get into 3) step.
5. battery management system battery pack according to claim 3 is gathered the recognition methods of line broken string; It is characterized in that; Special circumstances: when the 2nd or N root are gathered the line broken string; No matter whether the 1st or the collection of N+1 root are broken and all are identified as broken string, gather adjacent 2 when gathering lines and all breaking of line both sides when middle 1, gather line in the middle of this root and all unify to be identified as broken string no matter whether break.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210178528.9A CN102723754B (en) | 2012-06-01 | 2012-06-01 | Identifying circuit and identifying method of broken line of battery pack acquisition line of battery management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210178528.9A CN102723754B (en) | 2012-06-01 | 2012-06-01 | Identifying circuit and identifying method of broken line of battery pack acquisition line of battery management system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102723754A true CN102723754A (en) | 2012-10-10 |
| CN102723754B CN102723754B (en) | 2014-10-15 |
Family
ID=46949452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210178528.9A Active CN102723754B (en) | 2012-06-01 | 2012-06-01 | Identifying circuit and identifying method of broken line of battery pack acquisition line of battery management system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102723754B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103730700A (en) * | 2013-11-08 | 2014-04-16 | 天津力神电池股份有限公司 | Determining and treating methods of power cell system for sampling harness faults |
| CN103884988A (en) * | 2012-12-21 | 2014-06-25 | 比亚迪股份有限公司 | Battery pack fault detection device and detection method |
| CN106772082A (en) * | 2016-12-23 | 2017-05-31 | 惠州市蓝微新源技术有限公司 | A kind of voltage acquisition line wire break detection method of cell |
| 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 |
| CN107870283A (en) * | 2017-11-06 | 2018-04-03 | 山东谦恒电子科技有限公司 | BMS wiring testing devices and method |
| CN110061478A (en) * | 2019-04-28 | 2019-07-26 | 南京中感微电子有限公司 | A kind of battery pack thread-breakage protecting and system |
| CN111537916A (en) * | 2020-05-28 | 2020-08-14 | 上海金脉汽车电子有限公司 | Voltage sampling chip power supply ground disconnection fault diagnosis method, device and equipment |
| CN113740749A (en) * | 2021-09-06 | 2021-12-03 | 中山华野新能源有限公司 | Automatic detection method and system for battery pack connection |
| CN117214650A (en) * | 2023-11-09 | 2023-12-12 | 深圳市美鸿电子有限公司 | Intelligent detection method and system for comprehensive performance of diode |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201311484Y (en) * | 2008-11-27 | 2009-09-16 | 比亚迪股份有限公司 | Battery pack checking device |
| JP2010091520A (en) * | 2008-10-10 | 2010-04-22 | Toshiba Corp | Battery module abnormality detection circuit, and detection method therefor |
| WO2011009690A1 (en) * | 2009-07-20 | 2011-01-27 | Sb Limotive Company Ltd. | Hybrid battery system |
| CN201887440U (en) * | 2010-07-02 | 2011-06-29 | 清华大学 | Power battery pack safety protector |
| EP2339716A1 (en) * | 2009-12-28 | 2011-06-29 | Samsung SDI Co., Ltd | Battery pack and line open detecting method thereof |
-
2012
- 2012-06-01 CN CN201210178528.9A patent/CN102723754B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010091520A (en) * | 2008-10-10 | 2010-04-22 | Toshiba Corp | Battery module abnormality detection circuit, and detection method therefor |
| CN201311484Y (en) * | 2008-11-27 | 2009-09-16 | 比亚迪股份有限公司 | Battery pack checking device |
| WO2011009690A1 (en) * | 2009-07-20 | 2011-01-27 | Sb Limotive Company Ltd. | Hybrid battery system |
| EP2339716A1 (en) * | 2009-12-28 | 2011-06-29 | Samsung SDI Co., Ltd | Battery pack and line open detecting method thereof |
| CN201887440U (en) * | 2010-07-02 | 2011-06-29 | 清华大学 | Power battery pack safety protector |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103884988A (en) * | 2012-12-21 | 2014-06-25 | 比亚迪股份有限公司 | Battery pack fault detection device and detection method |
| US9835688B2 (en) | 2012-12-21 | 2017-12-05 | Byd Company Limited | Battery-pack fault detecting device and method for detecting fault of battery-pack |
| CN103730700A (en) * | 2013-11-08 | 2014-04-16 | 天津力神电池股份有限公司 | Determining and treating methods of power cell system for sampling harness faults |
| CN103730700B (en) * | 2013-11-08 | 2016-02-24 | 天津力神电池股份有限公司 | A kind of electrokinetic cell system is to the judgement of sampling wire harness fault and processing method |
| 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 |
| CN106772082A (en) * | 2016-12-23 | 2017-05-31 | 惠州市蓝微新源技术有限公司 | A kind of voltage acquisition line wire break detection method of cell |
| CN107870283A (en) * | 2017-11-06 | 2018-04-03 | 山东谦恒电子科技有限公司 | BMS wiring testing devices and method |
| CN110061478A (en) * | 2019-04-28 | 2019-07-26 | 南京中感微电子有限公司 | A kind of battery pack thread-breakage protecting and system |
| CN111537916A (en) * | 2020-05-28 | 2020-08-14 | 上海金脉汽车电子有限公司 | Voltage sampling chip power supply ground disconnection fault diagnosis method, device and equipment |
| CN113740749A (en) * | 2021-09-06 | 2021-12-03 | 中山华野新能源有限公司 | Automatic detection method and system for battery pack connection |
| CN117214650A (en) * | 2023-11-09 | 2023-12-12 | 深圳市美鸿电子有限公司 | Intelligent detection method and system for comprehensive performance of diode |
| CN117214650B (en) * | 2023-11-09 | 2024-01-26 | 深圳市美鸿电子有限公司 | Intelligent detection method and system for comprehensive performance of diode |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102723754B (en) | 2014-10-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102723754B (en) | Identifying circuit and identifying method of broken line of battery pack acquisition line of battery management system | |
| CN103884988B (en) | Battery pack fault detection device and detection method | |
| CN106787017B (en) | A kind of Cross prevention of spacecraft lithium battery and the control method that independently restores electricity | |
| CN106696724B (en) | A kind of power battery of electric vehicle and its control method, device and electric vehicle | |
| CN105470555A (en) | Power battery pack structure and management method thereof | |
| CN205484533U (en) | Battery voltage monitored control system | |
| CN106569128A (en) | Detection method and device | |
| CN106772082B (en) | Voltage acquisition line disconnection detection method for single battery | |
| CN106532163A (en) | Battery management system | |
| CN104242374B (en) | Charge-discharge control circuit and cell apparatus | |
| CN104991154B (en) | A kind of batteries of electric automobile bag monomer voltage gathering line wire break detection method and system | |
| CN105606950A (en) | Diagnosis method and diagnosis system for voltage sampling line fault of battery management system | |
| CN205376676U (en) | Battery pack management system | |
| CN108462214A (en) | A kind of double cell control method for parallel with software realization | |
| CN105576747A (en) | Power management system of multi-rotor manned aircraft and aircraft | |
| CN102608371B (en) | Storage battery detecting device and undervoltage protection method thereof | |
| CN104836269B (en) | The control device and method of battery management system and its relay | |
| CN103915875A (en) | Lithium battery charging and discharging control system for novel solar street lamp | |
| CN205355175U (en) | Power battery organizes structure | |
| CN111186338A (en) | Quick-response energy storage battery BMS system | |
| CN217213067U (en) | Battery health degree detection device | |
| CN205027882U (en) | Battery cell's voltage diagnosis collection system | |
| CN209088590U (en) | A kind of series connection energy density battery cyclic charge-discharge circuit | |
| CN103812087B (en) | The open circuit protection method and device of batteries in parallel connection | |
| CN208158151U (en) | A kind of automobile batteries protection system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |