CN105576304A - Battery pack management system and battery pack management method - Google Patents
Battery pack management system and battery pack management method Download PDFInfo
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- CN105576304A CN105576304A CN201610110840.2A CN201610110840A CN105576304A CN 105576304 A CN105576304 A CN 105576304A CN 201610110840 A CN201610110840 A CN 201610110840A CN 105576304 A CN105576304 A CN 105576304A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
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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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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The invention discloses a battery pack management system and a battery pack management method. The system comprisesa battery pack composed of n single batteries which are connected in series, and a main circuit composed of a resistive load R, and further comprises a temperature detection device, a temperature parameter regulation circuit, an optical coupler relay array, a pressure sensor, a current sensor, a main control chip, at least one relay logic control circuit, a first driving circuit, a second driving circuit, a control switch and a display panel. The battery pack management system can be used for detecting working parameters of each single battery of the battery pack, and estimating a residual capacity SOC index and an SOH health index of each single battery; when the working parameters of each single battery are abnormal, the single battery is regulated and protected, so that phenomena that a bucket effect of each single battery occurs so that normal work of the whole battery pack is influenced and the whole battery pack is damaged is avoided.
Description
Technical field
The present invention relates to technical field of battery management, be specifically related to a kind of batteries management system and battery pack management method.
Background technology
The quality of accumulator property directly affects the mobility of armament systems and the performance of fighting efficiency, and current vehicle-mounted series-connected batteries in use exists following problem:
Series-connected batteries there are differences because of cell performance and actual use capacity, along with the increase of discharge and recharge number of times, easily occur " the bucket effect " of single battery, cause batteries normally to work, also easily because the damage of single battery affects the normal work of whole battery pack.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of batteries management system and battery pack management method, can monitor the running parameter of each cell in battery pack.
The technical scheme that the present invention solves the problems of the technologies described above is as follows:
On the one hand, the invention provides a kind of batteries management system, comprise the major loop that the battery pack that is composed in series by n cell and ohmic load R form, also comprise temperature-detecting device, temperature parameter modulate circuit, light coupling relay array, voltage sensor, current sensor, main control chip, at least one relay logical control circuit, the first drive circuit, the second drive circuit, control switch and display floater;
Described temperature-detecting device comprises n temperature sensor, and each temperature sensor is all placed on corresponding cell, for detecting the working temperature of corresponding cell; Each temperature sensor is all connected with temperature parameter modulate circuit, and the working temperature for the cell of the correspondence by detection sends to temperature parameter modulate circuit, and wherein, n is positive integer;
Described light coupling relay array comprises n light coupling relay, and each light coupling relay is in parallel with corresponding cell, for detecting the operating voltage of corresponding cell; Each light coupling relay is all connected with voltage sensor, and the operating voltage for the cell of the correspondence by detection sends to voltage sensor, and wherein, n is positive integer;
Described current sensor is arranged in series in major loop, for detecting the operating current of each cell;
Described temperature parameter modulate circuit, voltage sensor and current sensor are all electrically connected with main control chip, the working temperature of each cell is transferred to main control chip by described temperature parameter modulate circuit, the operating voltage of each cell is transferred to main control chip by described voltage sensor, and the operating current of each cell is transferred to main control chip by described current sensor;
Described main control chip, Treatment Analysis is carried out for the working temperature to each cell, operating voltage and operating current, judge that whether the working temperature of each cell, operating voltage and operating current be abnormal, if abnormal, then carry out alarm by the warning circuit on display floater; Also for when the operating current of cell is abnormal, then control control switch by the first drive circuit and cut off major loop, wherein, control switch is arranged in series in major loop; And also for when the operating voltage of cell is abnormal, control the switch in parallel with abnormal cell by the second drive circuit to close, wherein, each cell is in parallel with cell after being all configured with corresponding resistance Rn and K switch n, described resistance Rn and K switch n series connection;
Described switch power module, for outside 220V voltage transitions is become each parts required voltage, for each parts provide required voltage.
Beneficial effect of the present invention is: detect the working temperature of each cell of battery pack, operating voltage and operating current; and judge the working temperature of each cell, operating voltage and operating current whether in normal range (NR); when occurring abnormal; take appropriate measures and carry out adjustment protection; and carry out alarm; avoid " the bucket effect " that occur single battery, affect the normal work of whole battery pack, and damage whole battery pack.
On the basis of technique scheme, following improvement can also be done.
Further, described main control chip comprises AD converter, described AD converter is electrically connected with voltage sensor and current sensor respectively, the operating current of the analog form of each cell sent for the operating voltage of the analog form of each cell that sends voltage sensor and current sensor carries out A/D conversion, form operating voltage and the operating current of digital form, for main control chip, Treatment Analysis is carried out to the operating voltage of digital form and operating current.
Further; described batteries management system also comprises signal conditioning circuit; described signal conditioning circuit is connected between described temperature sensor and described A/D convertor circuit, carries out low-pass filtering for the electric current detected described current sensor, with protection of transfiniting to operating current.
Further, described display floater also comprises LCD display and key circuit;
Described LCD display, for showing the working temperature of each cell detected, operating voltage, operating current and abnormal backlog information;
Described key circuit, for inputting the current threshold of the operating temperature threshold of each cell, the operating voltage threshold value of each cell and each cell.
Described further beneficial effect is: be shown in LCD display, the running parameter of each cell detected so that administrative staff check.
Further, described main control chip, carries out Treatment Analysis for the working temperature to each cell, operating voltage and operating current, judges that whether the working temperature of each cell, operating voltage and operating current be abnormal and specifically comprises:
Judge whether the working temperature of each cell is greater than corresponding operating temperature threshold, if so, then abnormal; If not, then normally;
Judge whether the operating voltage of each cell is greater than corresponding operating voltage threshold value, if so, then abnormal, if not, then normally;
Judge whether the operating current of each cell is greater than corresponding operating current threshold value, if so, then abnormal, if not, then normally.
Further, described main control chip also for:
According to the working temperature of each cell, operating voltage and operating current, adopt Kalman filter method, in conjunction with battery remaining power SOC experience estimation formulas, the residual capacity SOC index often saving cell is estimated, and with display floater on show;
And, by means of internal resistance of cell method, the health indicator SOH often saving cell is estimated, and with display floater on show.
Described further beneficial effect is: carry out battery remaining power SOC and health indicator SOH to each cell and estimate, to understand the useful life of each cell in time.
Further, the quantity of described relay logical control circuit is determined according to real needs.
On the other hand, the invention provides a kind of battery pack management method, comprising:
The temperature sensor be placed on each cell detects the working temperature of each cell, the light coupling relay in parallel with each cell detects the operating voltage of each cell, the current sensor be series in major loop detects the operating current of each cell, and the working temperature of each cell, operating voltage and operating current are sent to main control chip;
Main control chip judges that whether the working temperature of each cell, operating voltage and operating current be abnormal, if abnormal, then by display floater carries out alarm; And when the operating current of cell is abnormal, then control control switch by the first drive circuit and cut off major loop, wherein, control switch is arranged in series in major loop; And when the operating voltage of cell is abnormal, control the switch in parallel with abnormal cell by the second drive circuit to close, wherein, each cell is in parallel with cell after being all configured with corresponding resistance Rn and K switch n, described resistance Rn and K switch n series connection.
Beneficial effect of the present invention is: detect the working temperature of each cell of battery pack, operating voltage and operating current; and judge the working temperature of each cell, operating voltage and operating current whether in normal range (NR); when occurring abnormal; take appropriate measures and carry out adjustment protection; and carry out alarm; avoid " the bucket effect " that occur single battery, affect the normal work of whole battery pack, and damage whole battery pack.
On the basis of technique scheme, following improvement can also be done.
Further, the current threshold of the operating temperature threshold of each cell, the operating voltage threshold value of each cell and each cell is inputted by display floater;
Described main control chip judges that whether the working temperature of each cell, operating voltage and operating current be abnormal and specifically comprises:
Judge whether the working temperature of each cell is greater than corresponding operating temperature threshold, if so, then abnormal; If not, then normally;
Judge whether the operating voltage of each cell is greater than corresponding operating voltage threshold value, if so, then abnormal, if not, then normally;
Judge whether the operating current of each cell is greater than corresponding operating current threshold value, if so, then abnormal, if not, then normally.
Further, also comprise:
Main control chip is according to the working temperature of each cell, operating voltage and operating current, adopt Kalman filter method, in conjunction with battery remaining power SOC experience estimation formulas, the residual capacity SOC index often saving cell is estimated, and with display floater on show;
And, by means of internal resistance of cell method, the health indicator SOH often saving cell is estimated, and with display floater on show.
Described further beneficial effect is: carry out battery remaining power SOC and health indicator SOH to each cell and estimate, to understand the useful life of each cell in time.
Accompanying drawing explanation
Fig. 1 is the management system schematic diagram of a kind of battery pack of the embodiment of the present invention 1;
Fig. 2 is the management method flow chart of a kind of battery pack of the embodiment of the present invention 2.
Embodiment
Be described principle of the present invention and feature below in conjunction with accompanying drawing, example, only for explaining the present invention, is not intended to limit scope of the present invention.
Embodiment 1, a kind of batteries management system.Below in conjunction with Fig. 1, the system that the present embodiment provides is described.
See Fig. 1, the batteries management system that the present embodiment provides comprises the major loop that the battery pack that is composed in series by n cell and ohmic load R form, and also comprises temperature-detecting device, temperature parameter modulate circuit, light coupling relay array, voltage sensor, current sensor, main control chip, at least one relay logical control circuit, drive circuit, control switch and display floater.Described temperature-detecting device comprises n temperature sensor, and each temperature sensor is all placed on corresponding cell, for detecting the working temperature of corresponding cell; Each temperature sensor is all connected with temperature parameter modulate circuit, and the working temperature for the cell of the correspondence by detection sends to temperature parameter modulate circuit.Described light coupling relay array comprises n light coupling relay, and each light coupling relay is in parallel with corresponding cell, for detecting the operating voltage of corresponding cell; Each light coupling relay is all connected with voltage sensor, operating voltage for the cell of the correspondence by detection sends to voltage sensor, wherein, above-mentioned n is positive integer, circuit in the present embodiment is all integrated on chip, due to the restriction by die size, n is generally the positive integer being less than or equal to 100.Described current sensor is arranged in series in major loop, for detecting the operating current of each cell.
Described temperature parameter modulate circuit, voltage sensor and current sensor are all electrically connected with main control chip, the working temperature of each cell detected is transferred to main control chip by described temperature parameter modulate circuit, the operating voltage of each cell detected is transferred to main control chip by described voltage sensor, and the operating current of each cell detected is transferred to main control chip by described current sensor.
Described main control chip, Treatment Analysis is carried out for the working temperature to each cell, operating voltage and operating current, judge that whether the working temperature of each cell, operating voltage and operating current be abnormal, if abnormal, then carry out alarm by the warning circuit on display floater; Also for when the operating current of cell is abnormal, then control control switch by the first drive circuit and cut off major loop, wherein, control switch is arranged in series in major loop; And also for when the operating voltage of cell is abnormal, control the switch in parallel with abnormal cell by the second drive circuit to close, wherein, each cell is in parallel with cell after being all configured with corresponding resistance Rn and K switch n, described resistance Rn and K switch n series connection;
Described switch power module, for outside 220V voltage transitions is become each parts required voltage, for each parts provide required voltage.
Wherein, described main control chip comprises AD converter, described AD converter is electrically connected with voltage sensor and current sensor respectively, the operating current of the analog form of each cell sent for the operating voltage of the analog form of each cell that sends voltage sensor and current sensor carries out A/D conversion, form operating voltage and the operating current of digital form, for main control chip, Treatment Analysis is carried out to the operating voltage of digital form and operating current.Described batteries management system also comprises signal conditioning circuit; described signal conditioning circuit is connected between described temperature sensor and described A/D convertor circuit; operating current for each cell detected current sensor carries out low-pass filter, has reached the function of protection of transfiniting.
Described display floater also comprises LCD display and key circuit; Described LCD display, for showing the working temperature of each cell detected, operating voltage, operating current and abnormal backlog information; Described key circuit, for inputting the current threshold of the operating temperature threshold of each cell, the operating voltage threshold value of each cell and each cell.Described main control chip judges whether the working temperature of each cell is greater than corresponding operating temperature threshold, if so, then abnormal; If not, then normally; Judge whether the operating voltage of each cell is greater than corresponding operating voltage threshold value, if so, then abnormal, if not, then normally; Judge whether the operating current of each cell is greater than corresponding operating current threshold value, if so, then abnormal, if not, then normally.Described main control chip also for: according to the working temperature of each cell, operating voltage and operating current, adopt Kalman filter method, in conjunction with battery remaining power SOC experience estimation formulas, the residual capacity SOC index often saving cell is estimated, and with display floater on show; And, by means of internal resistance of cell method, the health indicator SOH often saving cell is estimated, and with display floater on show.
Embodiment 2, a kind of battery pack management method.Below in conjunction with Fig. 2, the method that the present embodiment provides is described.
See Fig. 2, the method that the present embodiment provides comprises: S1, the temperature sensor be placed on each cell detect the working temperature of each cell, the light coupling relay in parallel with each cell detects the operating voltage of each cell, the current sensor be series in major loop detects the operating current of each cell, and the working temperature of each cell, operating voltage and operating current are sent to main control chip.
Concrete, each temperature sensor is all connected with temperature parameter modulate circuit, and the working temperature of the cell of the correspondence of detection is sent to main control chip by temperature parameter modulate circuit by each temperature sensor; Each light coupling relay is all connected with voltage sensor, and the operating voltage of the cell of the correspondence of detection is sent to main control chip by voltage sensor by each light coupling relay.Current sensor is connected with main control chip by signal conditioning circuit, and the operating current of each cell detected is sent to main control chip.
S3a, main control chip are analyzed the working temperature of each cell, operating voltage and operating current, judge whether exception.
S3a, main control chip judge that whether the working temperature of each cell, operating voltage and operating current be abnormal, if abnormal, then by display floater carries out alarm.
Concrete, the current threshold of the operating temperature threshold of each cell, the operating voltage threshold value of each cell and each cell is inputted by display floater.Main control chip judges whether the working temperature of each cell is greater than corresponding operating temperature threshold, if so, then abnormal; If not, then normally; Judge whether the operating voltage of each cell is greater than corresponding operating voltage threshold value, if so, then abnormal, if not, then normally; Judge whether the operating current of each cell is greater than corresponding operating current threshold value, if so, then abnormal, if not, then normally.When the running parameter of cell occurs abnormal, carry out alarm by display floater, and the running parameter of each cell and abnormal information are shown on display floater.
S3b, when the operating current of cell is abnormal, then control control switch by the first drive circuit and cut off major loop, wherein, control switch is arranged in series in major loop; And when the operating voltage of cell is abnormal, control the switch in parallel with abnormal cell by the second drive circuit to close, wherein, each cell is in parallel with cell after being all configured with corresponding resistance Rn and K switch n, described resistance Rn and K switch n series connection.
Main control chip is also according to the working temperature of each cell, operating voltage and operating current, adopt Kalman filter method, in conjunction with battery remaining power SOC experience estimation formulas, the residual capacity SOC index often saving cell is estimated, and with display floater on show; And, by means of internal resistance of cell method, the health indicator SOH often saving cell is estimated, and with display floater on show.By the estimation to the residual capacity SOC and health indicator SOH that often save cell, the measurable remaining life often saving cell.
A kind of batteries management system provided by the invention and management method, detect the working temperature of each cell of battery pack, operating voltage and operating current, realize the real-time monitoring to each single cell operation parameter in battery pack, and judge the working temperature of each cell, whether operating voltage and operating current be in normal range (NR), when occurring abnormal, carry out alarm, and take appropriate measures to battery pack carry out adjustment protection, avoid " the bucket effect " that occur single battery, affect the normal work of whole battery pack, and damage whole battery pack.According to the working temperature of each cell, operating voltage and operating current, estimation often saves residual capacity SOC and the health indicator SOH of cell, and prediction often saves the remaining life of cell.
In the description of this specification, concrete grammar, device or feature that the description of reference term " embodiment one ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, method, device or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification or example and different embodiment or example can carry out combining and combining by those skilled in the art.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a batteries management system, comprise the major loop that the battery pack that is composed in series by n cell and ohmic load R form, it is characterized in that, also comprise temperature-detecting device, temperature parameter modulate circuit, light coupling relay array, voltage sensor, current sensor, main control chip, at least one relay logical control circuit, the first drive circuit, the second drive circuit, control switch display floater and switch power module;
Described temperature-detecting device comprises n temperature sensor, and each temperature sensor is all placed on corresponding cell, for detecting the working temperature of corresponding cell; Each temperature sensor is all connected with temperature parameter modulate circuit, and the working temperature for the cell of the correspondence by detection sends to temperature parameter modulate circuit, and wherein, n is positive integer;
Described light coupling relay array comprises n light coupling relay, and each light coupling relay is in parallel with corresponding cell, for detecting the operating voltage of corresponding cell; Each light coupling relay is all connected with voltage sensor, and the operating voltage for the cell of the correspondence by detection sends to voltage sensor, and wherein, n is positive integer;
Described current sensor is arranged in series in major loop, for detecting the operating current of each cell;
Described temperature parameter modulate circuit, voltage sensor and current sensor are all electrically connected with main control chip, the working temperature of each cell is transferred to main control chip by described temperature parameter modulate circuit, the operating voltage of each cell is transferred to main control chip by described voltage sensor, and the operating current of each cell is transferred to main control chip by described current sensor;
Described main control chip, Treatment Analysis is carried out for the working temperature to each cell, operating voltage and operating current, judge that whether the working temperature of each cell, operating voltage and operating current be abnormal, if abnormal, then carry out alarm by the warning circuit on display floater; Also for when the operating current of cell is abnormal, then control control switch by the first drive circuit and cut off major loop, wherein, control switch is arranged in series in major loop; And also for when the operating voltage of cell is abnormal, control the switch in parallel with abnormal cell by the second drive circuit to close, wherein, each cell is in parallel with cell after being all configured with corresponding resistance Rn and K switch n, described resistance Rn and K switch n series connection;
Described switch power module, for outside 220V voltage transitions is become each parts required voltage, for each parts provide required voltage.
2. batteries management system as claimed in claim 1, it is characterized in that, described main control chip comprises AD converter, described AD converter is electrically connected with voltage sensor and current sensor respectively, the operating current of the analog form of each cell sent for the operating voltage of the analog form of each cell that sends voltage sensor and current sensor carries out A/D conversion, form operating voltage and the operating current of digital form, for main control chip, Treatment Analysis is carried out to the operating voltage of digital form and operating current.
3. batteries management system as claimed in claim 2; it is characterized in that; described batteries management system also comprises signal conditioning circuit; described signal conditioning circuit is connected between described temperature sensor and described A/D convertor circuit, and the electric current for detecting described current sensor carries out low-pass filtering with protection of transfiniting to operating current.
4. batteries management system as claimed in claim 1, it is characterized in that, described display floater also comprises LCD display and key circuit;
Described LCD display, for showing the working temperature of each cell detected, operating voltage, operating current and abnormal backlog information;
Described key circuit, for inputting the current threshold of the operating temperature threshold of each cell, the operating voltage threshold value of each cell and each cell.
5. batteries management system as claimed in claim 4, it is characterized in that, described main control chip, carry out Treatment Analysis for the working temperature to each cell, operating voltage and operating current, judge that whether the working temperature of each cell, operating voltage and operating current be abnormal and specifically comprise:
Judge whether the working temperature of each cell is greater than corresponding operating temperature threshold, if so, then abnormal; If not, then normally;
Judge whether the operating voltage of each cell is greater than corresponding operating voltage threshold value, if so, then abnormal, if not, then normally;
Judge whether the operating current of each cell is greater than corresponding operating current threshold value, if so, then abnormal, if not, then normally.
6. batteries management system as claimed in claim 5, is characterized in that, described main control chip also for:
According to the working temperature of each cell, operating voltage and operating current, adopt Kalman filter method, in conjunction with battery remaining power SOC experience estimation formulas, the residual capacity SOC index often saving cell is estimated, and with display floater on show;
And, by means of internal resistance of cell method, the health indicator SOH often saving cell is estimated, and with display floater on show.
7. batteries management system as claimed in claim 1, it is characterized in that, the quantity of described relay logical control circuit is determined according to real needs.
8. a battery pack management method, comprises the major loop that the battery pack that is composed in series by n cell and ohmic load R form, it is characterized in that, comprising:
The temperature sensor be placed on each cell detects the working temperature of each cell, the light coupling relay in parallel with each cell detects the operating voltage of each cell, the current sensor be series in major loop detects the operating current of each cell, and the working temperature of each cell, operating voltage and operating current are sent to main control chip;
Main control chip judges that whether the working temperature of each cell, operating voltage and operating current be abnormal, if abnormal, then by display floater carries out alarm; And when the operating current of cell is abnormal, then control control switch by the first drive circuit and cut off major loop, wherein, control switch is arranged in series in major loop; And when the operating voltage of cell is abnormal, control the switch in parallel with abnormal cell by the second drive circuit to close, wherein, each cell is in parallel with cell after being all configured with corresponding resistance Rn and K switch n, described resistance Rn and K switch n series connection.
9. battery pack management method as claimed in claim 8, be is characterized in that, inputted the current threshold of the operating temperature threshold of each cell, the operating voltage threshold value of each cell and each cell by display floater;
Described main control chip judges that whether the working temperature of each cell, operating voltage and operating current be abnormal and specifically comprises:
Judge whether the working temperature of each cell is greater than corresponding operating temperature threshold, if so, then abnormal; If not, then normally;
Judge whether the operating voltage of each cell is greater than corresponding operating voltage threshold value, if so, then abnormal, if not, then normally;
Judge whether the operating current of each cell is greater than corresponding operating current threshold value, if so, then abnormal, if not, then normally.
10. battery pack management method as claimed in claim 8, is characterized in that, also comprise:
Main control chip is according to the working temperature of each cell, operating voltage and operating current, adopt Kalman filter method, in conjunction with battery remaining power SOC experience estimation formulas, the residual capacity SOC index often saving cell is estimated, and with display floater on show;
And, by means of internal resistance of cell method, the health indicator SOH often saving cell is estimated, and with display floater on show.
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| CN106143192A (en) * | 2016-07-08 | 2016-11-23 | 孙健春 | A kind of intelligent electric automobile power-supply management system and method |
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| CN106356574A (en) * | 2016-09-23 | 2017-01-25 | 北京新能源汽车股份有限公司 | Capacity matching method and device |
| CN106598104A (en) * | 2017-01-05 | 2017-04-26 | 刘泽法 | Lithium battery temperature digital controller |
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| TWI614512B (en) * | 2016-07-14 | 2018-02-11 | 神基科技股份有限公司 | Gauging method for battery discharge-capacity corresponding to temperature and electronic device using the same |
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| US10020548B2 (en) | 2016-08-08 | 2018-07-10 | Getac Technology Corporation | Gauging method for battery discharge-capacity corresponding to temperature and electronic device using the same |
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| CN107219462A (en) * | 2017-05-04 | 2017-09-29 | 西安陆海地球物理科技有限公司 | A kind of real-time observation circuit of electricity |
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| CN110544801A (en) * | 2019-09-12 | 2019-12-06 | 河南理工大学 | Battery pack dual-target adaptive equalization control method based on health state |
| CN110544801B (en) * | 2019-09-12 | 2020-11-03 | 河南理工大学 | Battery pack dual-target adaptive equalization control method based on health state |
| CN111584955A (en) * | 2020-05-13 | 2020-08-25 | 瑞浦能源有限公司 | Regulating and controlling method of storage battery, electronic equipment and storage medium |
| CN111584955B (en) * | 2020-05-13 | 2021-09-10 | 瑞浦能源有限公司 | Regulating and controlling method of storage battery, electronic equipment and storage medium |
| CN111993953A (en) * | 2020-08-27 | 2020-11-27 | 安徽江淮汽车集团股份有限公司 | Battery control method, power automobile and readable storage medium |
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