CN107719155B - Battery management system and method - Google Patents
Battery management system and method Download PDFInfo
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- CN107719155B CN107719155B CN201710813626.8A CN201710813626A CN107719155B CN 107719155 B CN107719155 B CN 107719155B CN 201710813626 A CN201710813626 A CN 201710813626A CN 107719155 B CN107719155 B CN 107719155B
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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
-
- 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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
-
- 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
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention relates to battery technology field, a kind of battery management system and method are provided, firstly, passing through the status information of data collecting module collected power module, and status information is sent to the first control module and the second control module；Secondly, after second control module handles status information, state outcome is sent to the first control module, the state outcome that the status information and the second control module that first control module can send data acquisition module are sent is checked, it can quickly be identified when data are inconsistent and respond movement, it solves the problems, such as in the prior art since production technology, use environment etc. lead to not effective monitoring battery behavior, the service life of battery pack is improved, and provides guarantee for the safe handling of vehicle.
Description
Technical field
The present invention relates to battery technology fields, in particular to a kind of battery management system and method.
Background technique
With the development of science and technology, the battery pack energy resource system of large storage capacity is increasingly valued by the people, very
It is all widely used in multi-field, such as in the research and industrialization of electric car and hybrid electric vehicle, vehicle will be used as
Carry the main provider of the energy.Battery pack is composed in series by a certain number of batteries, it can be carried out hundred times to thousand times
Charge and discharge, therefore the characterisitic parameter, such as battery temperature, remaining capacity etc. of each battery of necessary effective monitoring in use, prevent
Only there is the problems such as overcharging, over-discharge and temperature are excessively high in battery.But since production technology, the difference of use environment lead to each battery
Inconsistency be gradually expanded in use, occur overcharging in single battery, over-discharge and when the problems such as hot-spot, often
It can not accomplish effective monitoring, seriously affect the service life and safety of battery pack.
Summary of the invention
The purpose of the present invention is to provide a kind of battery management system and methods, to improve the above problem.
To achieve the goals above, technical solution used in the embodiment of the present invention is as follows:
The present invention provides a kind of battery management system, be applied to automobile, the battery management system include power module,
Data acquisition module, the first control module, the second control module and capacitive load；Power module and data acquisition module and capacitive
Load is electrically connected, and data acquisition module is electrically connected with the first control module and the second control module, and the first control module
It is electrically connected with the second control module；Power module is used to charge for capacitive load；Data acquisition module is for acquiring power module
Status information, and status information is sent to the first control module and the second control module；Second control module is used for basis
Status information confirms the state outcome of power module, and state outcome is sent to the first control module；First control module is used
In judging whether status information is consistent with state outcome, if inconsistent, the access between power module and capacitive load is disconnected.
The present invention also provides a kind of battery management methods, applied to above-mentioned battery management system, the battery management
System is applied to automobile comprising power module, data acquisition module, the first control module, the second control module and capacitive are negative
It carries；Power module is electrically connected with data acquisition module and capacitive load, data acquisition module and the first control module and second
Control module is electrically connected, and the first control module and the electrical connection of the second control module.The described method includes: data acquisition module
The status information of power module is acquired, and status information is sent to the first control module and the second control module；Second control
Module confirms the state outcome of power module according to status information, and state outcome is sent to the first control module；First control
Molding block judges whether status information is consistent with state outcome, if inconsistent, disconnects between power module and capacitive load
Access.
Compared with the prior art, the invention has the following advantages: a kind of battery management system provided by the invention and side
Status information firstly, passing through the status information of data collecting module collected power module, and is sent to the first control module by method
With the second control module；Secondly, state outcome is sent to the first control after the second control module handles status information
Module, the state outcome that the first control module can send the status information and the second control module that data acquisition module is sent
Checked, movement can be quickly identified and responded when data are inconsistent, solve in the prior art due to production technology,
Use environment etc. leads to not the problem of effective monitoring battery behavior, improves the service life of battery pack, and is the peace of vehicle
It entirely uses and provides guarantee.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 shows the structural block diagram of battery management system provided by first embodiment of the invention.
Fig. 2 shows the circuit diagrams of battery management system provided by first embodiment of the invention.
Fig. 3 shows the work flow diagram of battery management system provided by first embodiment of the invention.
Fig. 4 shows the circuit diagram of battery management system provided by second embodiment of the invention.
Icon: 100,200- battery management system；110- power module；111- battery pack；120- data acquisition module；
121- electric quantity acquisition unit；122- data processing unit；123- physical quantity acquisition unit；124- charge balancing unit；130-
One control module；131- the first data monitoring unit；132- the first lock-step control unit；The second control module of 140-；141-
Two data monitoring units；142- the second lock-step control unit；150- switch module；151- preliminary filling switchs；160- capacitive load.
Specific embodiment
Below in conjunction with attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Usually exist
The component of the embodiment of the present invention described and illustrated in attached drawing can be arranged and be designed with a variety of different configurations herein.Cause
This, is not intended to limit claimed invention to the detailed description of the embodiment of the present invention provided in the accompanying drawings below
Range, but it is merely representative of selected embodiment of the invention.Based on the embodiment of the present invention, those skilled in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.Meanwhile of the invention
In description, term " first ", " second " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
First embodiment
Fig. 1 is please referred to, Fig. 1 shows the structural block diagram of battery management system 100 provided by the embodiment of the present invention.Battery
Management system 100 is applied to automobile comprising power module 110, data acquisition module 120, the first control module 130, second
Control module 140, switch module 150 and capacitive load 160.Power module 110 is electrically connected with data acquisition module 120, data
Acquisition module 120 is electrically connected with the first control module 130 and the second control module 140, and the first control module 130 and second
Control module 140 is electrically connected.Switch module 150 is electrically connected between power module 110 and capacitive load 160, and switch module
150 are electrically connected with the first control module 130 and the second control module 140.
Referring to figure 2., power module 110 be used for for capacitive load 160 charge, power module 110 can be it is multiple successively
The battery pack 111 that concatenated battery is constituted.As an implementation, power module 110 is multiple batteries being sequentially connected in series
The battery group of composition.
In the present embodiment, data acquisition module 120 is used to acquire the status information of power module 110, and state is believed
Breath is sent to the first control module 130 and the second control module 140, that is to say, that data acquisition module 120 is for acquiring battery
The status information of group 111, and status information is sent to the first control module 130 and the second control module 140.
In the present embodiment, data acquisition module 120 includes electric quantity acquisition unit 121, data processing unit 122, physics
Measure acquisition unit 123 and charge balancing unit 124.Electric quantity acquisition unit 121, physical quantity acquisition unit 123 are electrically connected to electricity
Between source module 110 and data processing unit 122, and data processing unit 122 and the first control module 130 and the second control mould
Block 140 is electrically connected.Charge balancing unit 124 and power module 110, the first control module 130 and the second control module 140 are
Electrical connection.
In the present embodiment, electric quantity acquisition unit 121 is used to acquire the information about power of battery pack 111, such as battery pack 111
Information of voltage, current information, remaining capacity information etc..As an implementation, electric quantity acquisition unit 121 may include electricity
Pressure sensor and current sensor also may include voltage transformer and current transformer.
In the present embodiment, physical quantity acquisition unit 123 is used to acquire the physical quantity information of battery pack 111, such as battery
The temperature information etc. of group 111.As an implementation, physical quantity acquisition unit 123 can be temperature sensor.
In the present embodiment, data processing unit 122 is used for the information about power and physics for acquiring electric quantity acquisition unit 121
It measures the physical quantity information processing that acquisition unit 123 acquires and is the status information of battery pack 111, and be sent to the first control module
130 and second control module 140.As an implementation, data processing unit 122 can be analog-digital converter.
In the present embodiment, charge balancing unit 124 is for receiving the first control module 130 or the second control module 140
The feedback information of transmission, and the feedback information carries out charge balancing to each battery in battery pack 111, and single battery is avoided to go out
The case where existing over-discharge.
In the present embodiment, in the present embodiment, charge balancing unit 124 is for receiving the first control module 130 or the
The feedback information that two control modules 140 are sent, and the feedback information carries out charge balancing to each battery in battery pack 111,
Single battery is avoided to occur overcharging or the case where over-discharge.
In the present embodiment, the status information that the second control module 140 is used to be sent according to data acquisition module 120 confirms
The state outcome of power module 110, and state outcome is sent to the first control module 130.Second control module 140 includes the
Two data monitoring units 141 and the second lock-step control unit 142, the second data monitoring unit 141 and data processing unit 122 and
Charge balancing unit 124 is electrically connected, and the second lock-step control unit 143 is electrically connected with the first control module 130, and the second control
Module 140 is electrically connected with switch module 150.
In the present embodiment, the first control module 130 is used to judge the status information and that data acquisition module 120 is sent
Whether the state outcome that two control modules 140 are sent consistent, if inconsistent, disconnect power module 110 and capacitive load 160 it
Between access.First control module 130 includes the first data monitoring unit 131 and the first lock-step control unit 132, the first data
Monitoring unit 131 is electrically connected with data processing unit 122 and charge balancing unit 124, the first lock-step control unit 132 and
The electrical connection of two lock-step control units 142, and the first control module 130 is electrically connected with switch module 150.
In the present embodiment, the first data monitoring unit 131 and the second data monitoring unit 141 be used to receive data adopt
Collect the status information that module 120 is sent, the first data monitoring unit 131 is also used to judge battery pack 111 according to the status information
Whether the remaining capacity of interior each battery is balanced, and feedback information is sent if unbalanced, controls 124 pairs of electricity of charge balancing unit
Each battery in pond group 111 carries out charge balancing.Second data monitoring unit 141 is also used to go out in the first control module 130
When existing failure, control charge balancing unit 124 carries out charge balancing to each battery in battery pack 111.
In the present embodiment, the first lock-step control unit 132 and the second lock-step control unit 142 are for making the first control mould
Block 130 and the second control module 140 carry out lock-step control, to be confirmed each other working condition.When the first control module 130 determines
When the status information that data acquisition module 120 is sent is consistent with the state outcome that the second control module 140 is sent, the first lock-step control
Unit 132 processed carries out self-test to the lockstep state of itself, when self-test state is normal, sends the first lock-step signal to the second lock-step
Control unit 142；Second lock-step control unit 142 is knowing 130 lockstep state of the first control module just according to the first lock-step signal
Often, self-test then is carried out to the lockstep state of itself, when self-test state is normal, sends the second lock-step signal to the first lock-step control
Unit 132 processed；First lock-step control unit 132 knows that 140 lockstep state of the second control module is normal according to the second lock-step signal.
After the lockstep state of confirmed first control module 130 and the second control module 140 is normal, the second control module 140 enters
The state of the first control module 130 order is received, the first control module 130 enters standby mode.
In the present embodiment, switch module 150 includes main positive contactor K1, main negative contactor K2 and preliminary filling switchs 151, in advance
Switch 151, main positive contactor K1 and main negative contactor K2 is filled to be electrically connected between power module 110 and capacitive load 160, and
The control terminal of preliminary filling switchs 151, main positive contactor K1 and main negative contactor K2 is electrically connected with the first control module 130, main negative
The control terminal of contactor K2 is electrically connected with the second control module 140.
In the present embodiment, the switch terminals of main positive contactor K1 are electrically connected to the anode and capacitive load 160 of battery pack 111
Between, the control terminal A1 and B1 of main positive contactor K1 is electrically connected with the first control module 130.
In the present embodiment, the switch terminals of main negative contactor K2 are electrically connected to the cathode and capacitive load 160 of battery pack 111
Between, the control terminal A2 and B2 of main negative contactor K2 is electrically connected with the first control module 130 and the second control module 140.
In the present embodiment, preliminary filling switchs 151 include preliminary filling contactor K3 and preliminary filling resistance R1, power module 110, preliminary filling
Contactor K3, preliminary filling resistance R1 and capacitive load 160 are sequentially connected electrically.The switch terminals of preliminary filling contactor K3 are electrically connected to battery pack
Between 111 cathode and capacitive load 160, the control terminal A3 and B3 of preliminary filling contactor K3 is electrically connected with the first control module 130.
In the present embodiment, after the first control module 130 enters standby mode, when the first control module 130 receives VCU
When the work request order of (Vehicle Control Unit, entire car controller), the main negative contact of the first control module 130 control
The switch terminals actuation of device K2, preliminary filling contactor K3, so that battery pack 111 is the charging of capacitive load 160.When capacitive load 160
The pressure difference of voltage V1 and the total voltage Vbat of battery pack 111 in safe range (for example, be less than 10V) when, the first control module
The switch terminals of the main positive contactor K1 of 130 controls are attracted, and the switch terminals for controlling preliminary filling contactor K3 disconnect.
As an implementation, the first control module 130 and the second control module 140 may each be PLD
(Programmable Logic Device, programmable logic device), CPU (CentralProcessing Unit, centre
Manage device), CPLD (Complex Programmable Logic Device, Complex Programmable Logic Devices), FPGA (Field-
Programmable Gate Array, field programmable gate array), single-chip microcontroller etc..
In the present embodiment, capacitive load 160 include first capacitor C1 and current-limiting resistance R2, one end of first capacitor C1 with
Main positive contactor K1 and preliminary filling resistance R1 is electrically connected, and the other end is electrically connected with main negative contactor K2, and current-limiting resistance R2 is parallel to
The both ends of first capacitor C1.
Referring to figure 3., Fig. 3 shows the workflow of battery management system 100 provided by first embodiment of the invention
Figure.The workflow of battery management system 100 is as follows:
Step S101, data acquisition module 120 acquire the status information of power module 110, and status information is sent to
First control module 130 and the second control module 140.
Step S102, the second control module 140 confirm the state outcome of power module 110 according to status information, and by shape
State result is sent to the first control module 130.
Step S103, the first control module 130 judge whether status information is consistent with state outcome, if inconsistent, break
Access between switch power supply module 110 and capacitive load 160.
The working principle of battery management system 100 provided by first embodiment of the invention is: first, data acquisition module
The status information of 120 acquisition power modules 110, and status information is sent to the first control module 130 and the second control module
140；The second, the second control module 140 confirms the state outcome of power module 110 according to status information, and state outcome is sent out
It send to the first control module 130；Third, the first control module 130 judges whether status information is consistent with state outcome, if different
It causes, then disconnects the access between power module 110 and capacitive load 160；4th, if unanimously, the first control module 130 and
Two control modules 140 carry out lock-step control, are confirmed each other the working condition of other side；5th, the first control module 130 and second is controlled
The lockstep state of molding block 140 is normal, then the second control module 140 enters the state for receiving the order of the first control module 130,
First control module 130 enters standby mode；6th, when the first control module 130 receives the work request order of VCU,
The switch terminals actuation of the main negative contactor K2 of first control module 130 control, preliminary filling contactor K3, so that battery pack 111 is capacitive
160 charging of load；7th, when the voltage V1 and battery pack 111 of capacitive load 160 total voltage Vbat pressure difference in safe range
When interior, the main positive contactor K1 of the first control module 130 control is attracted, and controls preliminary filling contactor K3 disconnection；8th, the first control
Module 130 and the second control module 140 enter charging monitoring module, judge whether the state of power module 110 is normal, if it is not,
Then the main positive contactor K1 of the first control module 130 control and main negative contactor K2 is disconnected, and main bear of the second control module 140 control connects
Tentaculum K2 is disconnected；9th, if so, when the work of the first control module 130VCU is ceased and desisted order, the first control module 130
Control main positive contactor K1 and main negative contactor K2 are disconnected, and the second control module 140 is controlled under the control of the first control module 130
The main negative contactor K2 of system is disconnected.
Second embodiment
Referring to figure 4., Fig. 4 shows the circuit diagram of battery management system 200 provided by second embodiment of the invention.Electricity
Pond management system 200 include power module 110, data acquisition module 120, the first control module 130, the second control module 140,
Switch module 150 and capacitive load 160.Battery management system 200 provided in this embodiment, in addition to power module 110 includes more
Other than a battery pack 111 and multiple data acquisition modules 120, battery management system of other circuits with first embodiment offer
100 is identical.
In the present embodiment, multiple battery packs 111 and the quantity of multiple data acquisition modules 120 are identical, multiple battery packs
111 and multiple data acquisition modules 120 correspond electrical connection, and multiple data acquisition modules 120 with the first control module
130 and second control module 140 be electrically connected.Each data acquisition module 120 is for acquiring corresponding single battery group 111
Status information, and status information is sent to the first control module 130 and the second control module 140.
In conclusion a kind of battery management system provided by the invention and method, are applied to automobile, the battery management system
System includes power module, data acquisition module, the first control module, the second control module and capacitive load；Power module and number
It is electrically connected according to acquisition module and capacitive load, data acquisition module is electrically connected with the first control module and the second control module
It connects, and the first control module and the electrical connection of the second control module.The battery management method includes: data collecting module collected electricity
The status information of source module, and status information is sent to the first control module and the second control module；Second control module root
According to the state outcome of status information confirmation power module, and state outcome is sent to the first control module；First control module
Judge whether status information is consistent with state outcome, if inconsistent, disconnects the access between power module and capacitive load.This
Invention passes through the second control module first, carries out redundancy monitoring to the status information of data collecting module collected；The second, the second control
After molding block handles status information, state outcome is sent to the first control module, the first control module can be with logarithm
The state outcome that the status information and the second control module sent according to acquisition module is sent is checked, can when data are inconsistent
Quickly identifies and respond movement；Third, the second control module carry out independent monitoring to status information and by connecing to main bear
The control of tentaculum can carry out secondary safety protection to battery, solve the prior art when the first control module occurs abnormal
In the problem of effective monitoring battery behavior is led to not due to production technology, use environment etc., improve battery pack uses the longevity
Life, and guarantee is provided for the safe handling of vehicle.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.It should also be noted that similar label and letter exist
Similar terms are indicated in following attached drawing, therefore, once being defined in a certain Xiang Yi attached drawing, are then not required in subsequent attached drawing
It is further defined and explained.
Claims (8)
1. a kind of battery management system, which is characterized in that be applied to automobile, the battery management system includes power module, number
According to acquisition module, the first control module, the second control module, switch module and capacitive load；
The power module is electrically connected with the data acquisition module and the capacitive load, the data acquisition module and institute
It states the first control module and second control module is electrically connected, and first control module and second control module
Electrical connection；
The power module is used to charge for the capacitive load；
The data acquisition module is used to acquire the status information of the power module, and the status information is sent to described
First control module and second control module；
Second control module is used to confirm according to the state information the state outcome of the power module, and by the shape
State result is sent to first control module；
First control module, if inconsistent, is broken for judging whether the status information is consistent with the state outcome
Open the access between the power module and the capacitive load；
Wherein, the switch module includes preliminary filling switchs, main positive contactor and main negative contactor, and the preliminary filling switchs, master just connect
Tentaculum and main negative contactor are electrically connected between the power module and capacitive load, and the preliminary filling switchs, main positive contact
The control terminal of device and main negative contactor is electrically connected with first control module, the control terminal of the negative contactor of master with it is described
The electrical connection of second control module.
2. battery management system as described in claim 1, which is characterized in that first control module includes the first lock-step control
Unit processed, second control module include the second lock-step control unit, the first lock-step control unit and second lock
Walk control unit electrical connection.
3. battery management system as described in claim 1, which is characterized in that the preliminary filling switchs include preliminary filling contactor and with
Preliminary filling resistance, the power module, preliminary filling contactor, preliminary filling resistance and capacitive load are sequentially connected electrically, the preliminary filling contactor
Control terminal be electrically connected with first control module.
4. battery management system as described in claim 1, which is characterized in that the data acquisition module includes electric quantity acquisition list
Member, physical quantity acquisition unit and data processing unit, the electric quantity acquisition unit, physical quantity acquisition unit are electrically connected to described
Between power module and the data processing unit, and the data processing unit and first control module and described second
Control module is electrically connected.
5. battery management system as claimed in claim 4, which is characterized in that the electric quantity acquisition unit includes voltage sensor
And current sensor.
6. battery management system as claimed in claim 4, which is characterized in that the physical quantity acquisition unit includes temperature sensing
Device.
7. battery management system as claimed in claim 4, which is characterized in that the data acquisition module further includes charge balancing
Unit, the charge balancing unit are electrically connected with the power module, the first control module and the second control module.
8. a kind of battery management method, which is characterized in that it is applied to the described in any item battery management systems of claim 1-7,
The described method includes:
The status information of power module described in the data collecting module collected, and the status information is sent to described first
Control module and second control module；
Second control module confirms the state outcome of the power module according to the state information, and by the state knot
Fruit is sent to first control module；
First control module judges whether the status information is consistent with the state outcome, if inconsistent, disconnects institute
State the access between power module and the capacitive load；
First control module and second control module judge whether the state of the power module is normal, if it is not, then
First control module controls the positive contactor of the master in the switch module, the negative contactor of the master disconnects, and described the
Two control modules control the negative contactor of the master and disconnect.
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| CN201710813626.8A CN107719155B (en) | 2017-09-11 | 2017-09-11 | Battery management system and method |
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| CN110015143B (en) * | 2018-03-16 | 2021-01-19 | 江苏赣锋动力科技有限公司 | Lithium battery system, lithium battery system management method and application |
| TWI651913B (en) * | 2018-04-20 | 2019-02-21 | 聯華聚能科技股份有限公司 | Battery management system |
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| CN1317802C (en) * | 2002-08-05 | 2007-05-23 | 财团法人工业技术研究院 | Extensible cell state monitoring circuit for cell managing system |
| KR100906907B1 (en) * | 2006-10-10 | 2009-07-08 | 현대자동차주식회사 | Car battery management system |
| CN101119036B (en) * | 2007-07-23 | 2011-01-19 | 柏禄帕迅能源科技有限公司 | Battery management system for electric automobile |
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