CN106183850B - A kind of power battery status signal acquisition methods obtain system and electric car - Google Patents
A kind of power battery status signal acquisition methods obtain system and electric car Download PDFInfo
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- CN106183850B CN106183850B CN201610549807.XA CN201610549807A CN106183850B CN 106183850 B CN106183850 B CN 106183850B CN 201610549807 A CN201610549807 A CN 201610549807A CN 106183850 B CN106183850 B CN 106183850B
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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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- 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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Abstract
This application discloses a kind of power battery status signal acquisition methods, obtain system and electric car, wherein, power battery status signal acquisition methods configure the battery cell number that the battery management system scoreboard of multiple electric cars acquires by way of sending configuration information to the battery management system of electric car；It include the invalid state signal of the second preset quantity in these status signals no matter then whether the respective configured number of battery management system scoreboard is status signal that the first preset quantity is all sent out the first preset quantity；Finally invalid state signal therein is weeded out after summarizing the status signal that multiple battery management system scoreboards are sent, to the acquisition of the status signal of the realization battery cell all to electric car, and then solve the problems, such as to need to design different power battery status signal acquisition methods for the electric car with different number battery cell.
Description
Technical field
This application involves technical field of new energy, obtain more specifically to a kind of power battery status signal
Method obtains system and electric car.
Background technique
In recent years, popularizing with motor vehicles, the exhaust emissions of conventional motor vehicle causes very big influence to environment.
In order to solve the problems, such as that the tail gas environmental pollution discharged due to conventional motor vehicle, universal new-energy automobile are a kind of good
Settling mode.The electric cars such as pure electric automobile, plug-in hybrid-power automobile are to use motor driven using power battery as power
A kind of new-energy automobile of wheel operation.The exhaust emissions of electric car is less, therefore its prospects are considered optimistic wildly.
The power battery of the electric car is its main power resources, and the power battery is by multiple battery cell structures
At it is generally necessary to obtain all battery lists for constituting the power battery in electric car actual moving process or R&D process
The status signal of body, this acquisition process are usually completed by battery management system.The battery management system includes cell tube
Reason system board and multiple battery management system scoreboards, the battery management system scoreboard are responsible for acquiring a certain number of battery lists
The status signal of body, multiple battery management system scoreboards will constitute the state letter of all battery cells of the power battery
It number is sent to the power battery mainboard, the power battery mainboard is in the laggard action of status signal for obtaining all battery cells
The application such as calculating of power battery dump energy.The type of the battery cell includes ferric phosphate lithium cell and ternary material battery
Deng leading to the power electric of different electric cars due to the difference of the model of the difference and electric car of battery cell type
The quantity of the battery cell in pond is generally different, in this way when to different electric car design point signal acquiring methods, needs
According to the different status signal acquisition methods of different battery cell quantitative designs, the work for considerably increasing designer is strong
Degree.
Therefore, a kind of power battery status signal suitable for the electric car with different number battery cell is needed to obtain
Take method.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of power battery status signal acquisition methods, obtaining system
And electric car, to solve to need to design different power battery states for the electric car with different number battery cell
The problem of signal acquiring method.
In order to solve the above technical problems, the embodiment of the invention provides following technical solutions:
A kind of power battery status signal acquisition methods, are applied to electric car, and the power battery status signal obtains
Method includes:
Configuration information is sent to the battery management system of the electric car, the configuration information is multiple described for configuring
The battery cell number of the battery management system scoreboard acquisition of electric car；
The state letter of the battery cell of each battery management system scoreboard acquisition configuration number electric car
Number, and the status signal of the first preset quantity is sent, the status signal of first preset quantity includes the configured number of acquisition
Status signal and the second preset quantity invalid state signal, first preset quantity is the battery management system point
The maximum number for the status signal that plate can acquire, second preset quantity are first preset quantity and the configuration number
Purpose difference；
Summarize the status signal that multiple battery management system scoreboards are sent, rejects invalid state signal therein, obtain
Obtain the status signal of all battery cells of power battery of the electric car.
Preferably, summarize the status signal that multiple battery management system scoreboards are sent, reject invalid state therein
Signal, after the status signal of all battery cells of power battery for obtaining the electric car further include:
Successively show the status signal of all battery cells of the power battery.
Preferably, the status signal includes the voltage signal of the battery cell and/or the temperature of the battery cell
The equalizing signal of signal and/or the battery cell.
Preferably, the invalid state signal is zero level signal or non-zero outlier signal.
Preferably, summarize the status signal that multiple battery management system scoreboards are sent, reject invalid state therein
Signal, after the status signal of all battery cells of power battery for obtaining the electric car further include:
According to the status signal of all battery units of the power battery calculate the power battery remaining capacity and/or
Cell health state.
A kind of power battery status signal acquisition system, is applied to electric car, the power battery management system includes:
Configuration information sending module, for sending configuration information to the battery management system, the configuration information is used for
Configure the battery cell number of the battery management system scoreboard acquisition of multiple electric cars；
State signal collecting module, including multiple battery management system scoreboards, each battery management system point
Status signal of the plate for the battery cell of the acquisition configuration number electric car, and send the state of the first preset quantity
Signal, the status signal of first preset quantity include the status signal and the second preset quantity of the configured number of acquisition
Invalid state signal, the maximum number for the status signal that first preset quantity can acquire for the battery management system scoreboard
Mesh, second preset quantity are the difference of first preset quantity and the configured number；
Battery information summarizing module, the status signal sent for summarizing multiple battery management system scoreboards, is rejected
Invalid state signal therein obtains the status signal of all battery cells of power battery of the electric car.
Preferably, the power battery management system further include:
Display module, for successively showing the status signal of all battery cells of the power battery.
Preferably, the status signal includes the voltage signal of the battery cell and/or the temperature of the battery cell
The equalizing signal of signal and/or the battery cell.
Preferably, the invalid state signal is zero level signal or non-zero outlier signal.
Preferably, the power battery status signal obtains system further include:
Computing module, for calculating the power battery according to the status signal of all battery units of the power battery
Remaining capacity and/or cell health state.
A kind of electric car obtains system including power battery status signal described in any of the above-described embodiment.
It can be seen from the above technical proposal that the embodiment of the invention provides a kind of power battery status signal acquisition sides
Method obtains system and electric car, wherein the power battery status signal acquisition methods pass through the electricity to the electric car
The mode that pond management system sends configuration information configures the battery of the battery management system scoreboard acquisition of multiple electric cars
Number of monomers；No matter then whether the respective configured number of battery management system scoreboard is that the first preset quantity is (i.e. described
The maximum number for the status signal that battery management system scoreboard can acquire) all it is sent out the state letter of the first preset quantity
Number, it include the invalid state signal of the second preset quantity in these status signals；Finally summarizing multiple battery managements
Invalid state signal therein is weeded out after the status signal that system scoreboard is sent, realizes the electricity all to the electric car
The acquisition of the status signal of pond monomer.No matter it can be seen from the above description that the power battery of the electric car is by how many
Battery cell is constituted, and the shape of the battery cell all to the electric car can be realized by the way that different configuration informations is arranged
The acquisition of state signal needs to design different power electrics for the electric car with different number battery cell to solve
The problem of pond status signal acquisition methods.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of process signal for power battery status signal acquisition methods that one embodiment of the application provides
Figure；
Fig. 2 is a kind of process signal for power battery status signal acquisition methods that another embodiment of the application provides
Figure；
Fig. 3 is a kind of process signal for power battery status signal acquisition methods that another embodiment of the application provides
Figure；
Fig. 4 is the structural representation that a kind of power battery status signal that one embodiment of the application provides obtains system
Figure；
Fig. 5 is the structural representation that a kind of power battery status signal that another embodiment of the application provides obtains system
Figure；
Fig. 6 is the structural representation that a kind of power battery status signal that another embodiment of the application provides obtains system
Figure.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the present application provides a kind of power battery status signal acquisition methods, as shown in Figure 1, being applied to electronic vapour
Vehicle, the power battery status signal acquisition methods include:
S101: configuration information is sent to the battery management system of the electric car, the configuration information is more for configuring
The battery cell number of the battery management system scoreboard acquisition of a electric car；
S102: the shape of the battery cell of each battery management system scoreboard acquisition configuration number electric car
State signal, and the status signal of the first preset quantity is sent, the status signal of first preset quantity includes the configuration of acquisition
The invalid state signal of the status signal of number and the second preset quantity, first preset quantity are the battery management system
The maximum number for the status signal that system scoreboard can acquire, second preset quantity are that first preset quantity is matched with described
Set the difference of number；
S103: summarizing the status signal that multiple battery management system scoreboards are sent, and rejects invalid state letter therein
Number, obtain the status signal of all battery cells of power battery of the electric car.
It should be noted that can be to the device that the battery management system of the electric car sends configuration information upper
Machine, entire car controller or the battery controller etc. being also possible to inside electric car.The application is to this and without limitation, specific to regard
Depending on actual conditions.
Show the specific of the power battery status signal acquisition methods provided by the embodiments of the present application in order to clearer
Implementation process illustrates the specific implementation process of the power battery status signal acquisition methods below with one embodiment:
In this example, it is assumed that the power battery of the electric car is made of N number of battery cell, it is assumed that described first
Preset quantity is A, and the configuration information includes tri- signals of X, Y, Z, and signal X is used to configure the battery management system of serial number 1
The configured number x of scoreboard, signal Y are used to configure the configured number y of the battery management system scoreboard of serial number 2, and signal Z is for matching
The configured number z of the battery management system scoreboard of serial number 3 is set, wherein A >=x/y/z, x+y+z=N, such serial number is respectively 1,
2, the acquisition of the status signal to N number of battery cell can be realized in 3 battery management system scoreboard.
For the battery management system after receiving the configuration information, internal serial number is respectively 1,2,3 three batteries
Management system scoreboard acquires the status signal of the battery cell of the x, y, z electric car respectively, and sends A state letter
Number, in this case, the battery management system scoreboard of serial number 1 needs to send the battery cell of the x electric cars of acquisition
Status signal and A-x invalid state signal；The battery management system scoreboard of serial number 2 needs to send y institute of acquisition
State the status signal and A-y invalid state signal of the battery cell of electric car, the battery management system scoreboard of serial number 3
Need to send the status signal and A-z invalid state signal of the battery cell of the z electric cars of acquisition；These electricity
The status signal that pond management system scoreboard is sent is by the full-vehicle control of battery management system mainboard or host computer or electric car
After device summarizes, invalid state signal therein is rejected according to the configuration information.
By taking the battery management system mainboard as an example, when the battery management system mainboard receives serial number 1,2,3
After the status signal that battery management system scoreboard is sent, according to the configuration information it is found that the battery management system of serial number 1 point
The status signal of the battery cell of plate acquisition is x, therefore there are A-x invalid states in A status signal of its transmission
Signal needs to weed out A-x for the invalid signals of the status signal of battery cell；The battery management of serial number 2
The status signal of the battery cell of system scoreboard acquisition is y, therefore there are A-y nothings in A status signal of its transmission
Status signal is imitated, needs to weed out A-y for the invalid state signal of the status signal of battery cell；Likewise,
There are A-z invalid state signal in the A status signal that the battery management system scoreboard of serial number 3 is sent, need A-z
It can not be weeded out for the invalid state signal of the status signal of battery cell.
As long as described above it can be found that the state that the invalid state signal battery cell can not occur
Signal, such as zero level signal or non-zero outlier signal (such as infinitely great level signal etc.), the application's
In one embodiment, the invalid state signal is preferably zero level signal.The application is specific to the invalid state signal
Content and without limitation, specifically depending on actual conditions.
On the basis of the above embodiments, in one embodiment of the application, as shown in Fig. 2, summarizing multiple electricity
The status signal that pond management system scoreboard is sent, rejects invalid state signal therein, obtains the power electric of the electric car
After the status signal of all battery cells in pond further include:
S104: the status signal of all battery cells of the power battery is successively shown.
It should be noted that the status signal may include the voltage signal and the battery cell of the battery cell
Temperature signal and the battery cell equalizing signal；It also may include the voltage signal or the battery of the battery cell
The equalizing signal of the temperature signal of monomer or the battery cell it is any one or more；It certainly can also include other representatives
The signal of the cell-state.The application to this and without limitation, specifically depending on actual conditions.
In the present embodiment, the purpose for successively showing the status signal of all battery cells of the power battery is easy for
The state of all battery cells of the power battery is controlled in the research and development experimentation of electric car in real time.
Likewise, in order to be better understood by the mistake for the status signal for successively showing all battery cells of the power battery
Journey is exemplified below.
In the present embodiment, by taking voltage signal as an example, it is assumed that first preset quantity is 12, and the electric car moves
Power battery is made of 30 battery cells；The configuration information matches the battery management system point that the serial number postponed is respectively 1,2,3
The configured number of plate is 10.It is 1-10's that then the battery management system scoreboard of serial number 1, which acquires number in the power battery,
The voltage signal of battery cell, but 12 voltage signals (number consecutively 1-12) are still sent, wherein number is 11 and 12
Voltage signal is zero level signal；Correspondingly, number is in the battery management system scoreboard acquisition power battery of serial number 2
The voltage signal of the battery cell of 11-20 sends 12 voltage signals (number consecutively 13-24), wherein number is 23 and 24
Voltage signal be zero level signal；It is numbered in the power battery correspondingly, the battery management system scoreboard of serial number 3 acquires
For the voltage signal of the battery cell of 21-30,12 voltage signals (number consecutively 25-36) are sent, wherein number is 35 Hes
36 voltage signal is zero level signal.
The battery management system mainboard or host computer weed out 6 therein after receiving this 36 voltage signals
Zero level signal, by the number that the battery management system scoreboard of serial number 2 acquires be 13-22 voltage signal number and meanwhile subtract
2, re-form the voltage signal that number is 11-20；Likewise, the number that the battery management system scoreboard of serial number 3 is acquired
Number for the voltage signal of 25-34 subtracts 4 simultaneously, re-forms the voltage signal that number is 21-30.It is compiled after above-mentioned processing
Number voltage signal for being 1-30 corresponds to the battery cell that number is 1-30, and the voltage signal for being 1-30 to number is shown i.e.
It can be appreciated that the voltage status of each battery cell.These voltage signals can be used for calculating the remaining capacity of power battery and estimate
Calculate the applications such as the health status of ground power battery.
Correspondingly, the temperature signal of the battery cell or other represent the acquisition of the signal of the cell-state with
And display process is similar with the acquisition of the voltage signal of the battery cell and display process, this will not be repeated here by the application.
In addition the acquisition and display of the battery cell can be used to carry out the state of each battery cell heat management, energy limit and
Fault diagnosis etc.；
Wherein, the heat management are as follows: cooling processing is carried out to it when the temperature is excessively high when some or certain battery cells, when
Heating treatment is carried out to it when the temperature of some battery cell is too low, to guarantee that each battery cell works in more suitable temperature
Degree.
The energy limit refers to: when some or certain battery cells brownout or when the temperature is excessively high limit its maximum
Output power, to reduce its temperature.
The fault diagnosis refers to: when the voltage or temperature of some or certain battery cells are more than normal value, can examine
Breaking, it breaks down, to the processing such as be forbidden to use or be sounded an alarm to it, avoids the battery cell continuous service of failure
And situations such as leakage, explosion occurs.
On the basis of the above embodiments, in another embodiment of the application, as shown in figure 3, summarizing multiple described
The status signal that battery management system scoreboard is sent, rejects invalid state signal therein, obtains the power of the electric car
After the status signal of all battery cells of battery further include:
S105: the remaining capacity of the power battery is calculated according to the status signal of all battery units of the power battery
And/or cell health state.
It should be noted that in the other embodiments of the application, according to the shape of all battery units of the power battery
State signal can also calculate the other parameters for indicating the power battery state, such as the equilibrium state of the power battery
Deng.The application to this and without limitation, specifically depending on actual conditions.
Correspondingly, the embodiment of the present application also provides a kind of power battery status signals to obtain system, as shown in figure 4, answering
For electric car, the power battery management system includes:
Configuration information sending module 100, for sending configuration information to the battery management system, the configuration information is used
In the battery cell number for the battery management system scoreboard acquisition for configuring multiple electric cars；
State signal collecting module 200, including multiple battery management system scoreboards, each battery management system
Status signal of the scoreboard for the battery cell of the acquisition configuration number electric car, and send the shape of the first preset quantity
State signal, the status signal of first preset quantity include the status signal and the second preset quantity of the configured number of acquisition
Invalid state signal, the maximum for the status signal that first preset quantity can acquire for the battery management system scoreboard
Number, second preset quantity are the difference of first preset quantity and the configured number；
Battery information summarizing module 300, the status signal sent for summarizing multiple battery management system scoreboards, is picked
Except invalid state signal therein, the status signal of all battery cells of power battery of the electric car is obtained.
It should be noted that can be to the device that the battery management system of the electric car sends configuration information upper
Machine, entire car controller or the battery controller etc. being also possible to inside electric car.The application is to this and without limitation, specific to regard
Depending on actual conditions.
Show that the power battery status signal provided by the embodiments of the present application obtains the specific of system in order to clearer
Implementation process illustrates that the power battery status signal obtains the specific work process of system below with one embodiment:
In this example, it is assumed that the power battery of the electric car is made of N number of battery cell, it is assumed that described first
Preset quantity is A, and the configuration information that the configuration information sending module 100 is sent includes tri- signals of X, Y, Z, and signal X is used for
The configured number x of the battery management system scoreboard of serial number 1 is configured, signal Y is used to configure the battery management system point of serial number 2
The configured number y of plate, signal Z are used to configure the configured number z of the battery management system scoreboard of serial number 3, wherein A >=x/y/
Z, x+y+z=N, such serial number are respectively that the state letter to N number of battery cell can be realized in 1,2,3 battery management system scoreboard
Number acquisition.
For the battery management system after receiving the configuration information, internal serial number is respectively 1,2,3 three batteries
Management system scoreboard acquires the status signal of the battery cell of the x, y, z electric car respectively, and sends A state letter
Number, in this case, the battery management system scoreboard of serial number 1 needs to send the battery cell of the x electric cars of acquisition
Status signal and A-x invalid state signal；The battery management system scoreboard of serial number 2 needs to send y institute of acquisition
State the status signal and A-y invalid state signal of the battery cell of electric car, the battery management system scoreboard of serial number 3
Need to send the status signal and A-z invalid state signal of the battery cell of the z electric cars of acquisition；These electricity
The status signal that pond management system scoreboard is sent is by the battery management system mainboard or host computer or electricity in battery management system
After the entire car controller of electrical automobile summarizes, invalid state signal therein is rejected according to the configuration information.
By taking the battery management system mainboard as an example, when the battery management system mainboard receives serial number 1,2,3
After the status signal that battery management system scoreboard is sent, according to the configuration information it is found that the battery management system of serial number 1 point
The status signal of the battery cell of plate acquisition is x, therefore there are A-x invalid states in A status signal of its transmission
Signal needs to weed out A-x for the invalid signals of the status signal of battery cell；The battery management of serial number 2
The status signal of the battery cell of system scoreboard acquisition is y, therefore there are A-y nothings in A status signal of its transmission
Status signal is imitated, needs to weed out A-y for the invalid state signal of the status signal of battery cell；Likewise,
There are A-z invalid state signal in the A status signal that the battery management system scoreboard of serial number 3 is sent, need A-z
It can not be weeded out for the invalid state signal of the status signal of battery cell.
As long as described above it can be found that the state that the invalid state signal battery cell can not occur
Signal, such as zero level signal or non-zero outlier signal (such as infinitely great level signal etc.), the application's
In one embodiment, the invalid state signal is preferably zero level signal.The application is specific to the invalid state signal
Content and without limitation, specifically depending on actual conditions.
On the basis of the above embodiments, in one embodiment of the application, as shown in figure 5, the power battery pipe
Reason system further include:
Display module 400, for successively showing the status signal of all battery cells of the power battery.
It should be noted that the status signal may include the voltage signal of the battery cell, the battery cell
Temperature signal and the battery cell equalizing signal；It also may include the voltage signal or the battery of the battery cell
The equalizing signal of the temperature signal of monomer or the battery cell it is any one or more；It certainly can also include other representatives
The signal of the cell-state.The application to this and without limitation, specifically depending on actual conditions.
In the present embodiment, the purpose for successively showing the status signal of all battery cells of the power battery is easy for
The state of all battery cells of the power battery is controlled in the research and development experimentation of electric car in real time.
Likewise, in order to be better understood by the mistake for the status signal for successively showing all battery cells of the power battery
Journey is exemplified below.
In the present embodiment, by taking voltage signal as an example, it is assumed that first preset quantity is 12, and the electric car moves
Power battery is made of 30 battery cells；The configuration information matches the battery management system point that the serial number postponed is respectively 1,2,3
The configured number of plate is 10.It is 1-10's that then the battery management system scoreboard of serial number 1, which acquires number in the power battery,
The voltage signal of battery cell, but 12 voltage signals (number consecutively 1-12) are still sent, wherein number is 11 and 12
Voltage signal is zero level signal；Correspondingly, number is in the battery management system scoreboard acquisition power battery of serial number 2
The voltage signal of the battery cell of 11-20 sends 12 voltage signals (number consecutively 13-24), wherein number is 23 and 24
Voltage signal be zero level signal；It is numbered in the power battery correspondingly, the battery management system scoreboard of serial number 3 acquires
For the voltage signal of the battery cell of 21-30,12 voltage signals (number consecutively 25-36) are sent, wherein number is 35 Hes
36 voltage signal is zero level signal.
The battery management system mainboard or host computer weed out 6 therein after receiving this 36 voltage signals
Zero level signal, by the number that the battery management system scoreboard of serial number 2 acquires be 13-22 voltage signal number and meanwhile subtract
2, re-form the voltage signal that number is 11-20；Likewise, the number that the battery management system scoreboard of serial number 3 is acquired
Number for the voltage signal of 25-34 subtracts 4 simultaneously, re-forms the voltage signal that number is 21-30.It is compiled after above-mentioned processing
Number voltage signal for being 1-30 corresponds to the battery cell that number is 1-30, and the host computer can will number voltage for 1-30
Signal is shown by the display module 400, can be appreciated that the voltage status of each battery cell in this way.These voltages letter
It number can be used for calculating the application such as the remaining capacity of power battery and the health status of estimation ground power battery.
Correspondingly, the temperature signal of the battery cell or other represent the acquisition of the signal of the cell-state with
And display process is similar with the acquisition of the voltage signal of the battery cell and display process, this will not be repeated here by the application.
In addition the acquisition and display of the battery cell can be used to carry out the state of each battery cell heat management, energy limit and
Fault diagnosis etc.；
Wherein, the heat management are as follows: cooling processing is carried out to it when the temperature is excessively high when some or certain battery cells, when
Heating treatment is carried out to it when the temperature of some battery cell is too low, to guarantee that each battery cell works in more suitable temperature
Degree.
The energy limit refers to: when some or certain battery cells brownout or when the temperature is excessively high limit its maximum
Output power, to reduce its temperature.
The fault diagnosis refers to: when the voltage or temperature of some or certain battery cells are more than normal value, can examine
Breaking, it breaks down, to the processing such as be forbidden to use or be sounded an alarm to it, avoids the battery cell continuous service of failure
And situations such as leakage, explosion occurs.
On the basis of the above embodiments, in another embodiment of the application, as shown in fig. 6, the power battery
Status signal obtains system further include:
Computing module 500, for calculating the power electric according to the status signal of all battery units of the power battery
The remaining capacity and/or cell health state in pond.
It should be noted that the computing module 500 can also be according to the power in the other embodiments of the application
The status signal of all battery units of battery calculates the other parameters for indicating the power battery state, such as the power electric
The equilibrium state etc. in pond.The application to this and without limitation, specifically depending on actual conditions.
Correspondingly, the embodiment of the present application also provides a kind of electric car, including dynamic as described in above-mentioned any embodiment
Power battery status signal obtains system.
In conclusion the embodiment of the present application provides a kind of power battery status signal acquisition methods, acquisition system and electricity
Electrical automobile, wherein the power battery status signal acquisition methods to the battery management system of the electric car by sending
The mode of configuration information configures the battery cell number of the battery management system scoreboard acquisition of multiple electric cars；Then not
It whether is the first preset quantity (i.e. described battery management system scoreboard by the respective configured number of battery management system scoreboard
The maximum number for the status signal that can be acquired) it is all sent out the status signal of the first preset quantity, in these status signals
Invalid state signal including the second preset quantity；Finally in the state for summarizing multiple battery management system scoreboards transmissions
Invalid state signal therein is weeded out after signal, realizes the status signal of the battery cell all to the electric car
It obtains.No matter being ok it can be seen from the above description that the power battery of the electric car is made of how many a battery cells
The acquisition for realizing the status signal of the battery cell all to the electric car by the way that different configuration informations is arranged, to solve
It has determined and has needed to design different power battery status signal acquisition methods for the electric car with different number battery cell
The problem of.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (11)
1. a kind of power battery status signal acquisition methods are applied to electric car, which is characterized in that the power battery state
Signal acquiring method includes:
Configuration information is sent to the battery management system of the electric car, the configuration information is multiple described electronic for configuring
The battery cell number of the battery management system scoreboard acquisition of automobile；
The status signal of the battery cell of each battery management system scoreboard acquisition configuration number electric car, and
The status signal of the first preset quantity is sent, the status signal of first preset quantity includes the state of the configured number of acquisition
The invalid state signal of signal and the second preset quantity, first preset quantity are battery management system scoreboard institute energy
The maximum number of the status signal of acquisition, second preset quantity are the difference of first preset quantity and the configured number
Value；
Summarize the status signal that multiple battery management system scoreboards are sent, rejects invalid state signal therein, obtain institute
State the status signal of all battery cells of power battery of electric car.
2. power battery status signal acquisition methods according to claim 1, which is characterized in that summarize multiple batteries
The status signal that management system scoreboard is sent, rejects invalid state signal therein, obtains the power battery of the electric car
After the status signal of all battery cells further include:
Successively show the status signal of all battery cells of the power battery.
3. power battery status signal acquisition methods according to claim 1, which is characterized in that the status signal includes
The equalizing signal of the temperature signal and/or the battery cell of the voltage signal of the battery cell and/or the battery cell.
4. power battery status signal acquisition methods according to claim 1, which is characterized in that the invalid state signal
For zero level signal or non-zero outlier signal.
5. power battery status signal acquisition methods according to claim 1, which is characterized in that summarize multiple batteries
The status signal that management system scoreboard is sent, rejects invalid state signal therein, obtains the power battery of the electric car
After the status signal of all battery cells further include:
The remaining capacity and/or battery of the power battery are calculated according to the status signal of all battery units of the power battery
Health status.
6. a kind of power battery status signal obtains system, it is applied to electric car, which is characterized in that power battery management system
Include:
Configuration information sending module, for sending configuration information to the battery management system, the configuration information is for configuring
The battery cell number of the battery management system scoreboard acquisition of multiple electric cars；
State signal collecting module, including multiple battery management system scoreboards, each battery management system scoreboard are used
In the status signal of the battery cell of the acquisition configuration number electric car, and send the state letter of the first preset quantity
Number, the status signal of first preset quantity includes the status signal of the configured number of acquisition and the nothing of the second preset quantity
Imitate status signal, the maximum number for the status signal that first preset quantity can acquire for the battery management system scoreboard
Mesh, second preset quantity are the difference of first preset quantity and the configured number；
Battery information summarizing module, the status signal sent for summarizing multiple battery management system scoreboards, is rejected wherein
Invalid state signal, obtain the status signal of all battery cells of power battery of the electric car.
7. power battery status signal according to claim 6 obtains system, which is characterized in that the power battery management
System further include:
Display module, for successively showing the status signal of all battery cells of the power battery.
8. power battery status signal according to claim 6 obtains system, the status signal includes the battery list
The equalizing signal of the temperature signal and/or the battery cell of the voltage signal of body and/or the battery cell.
9. power battery status signal according to claim 6 obtains system, which is characterized in that the invalid state signal
For zero level signal or non-zero outlier signal.
10. power battery status signal according to claim 6 obtains system, which is characterized in that the power battery shape
State signal acquisition system further include:
Computing module, for calculating the residue of the power battery according to the status signal of all battery units of the power battery
Electricity and/or cell health state.
11. a kind of electric car, which is characterized in that obtained including the described in any item power battery status signals of claim 6-10
Take system.
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| CN112009270B (en) * | 2020-08-31 | 2022-02-01 | 安徽江淮汽车集团股份有限公司 | Motor output power control method, power automobile and readable storage medium |
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| JPH07264709A (en) * | 1994-03-24 | 1995-10-13 | Mitsubishi Electric Corp | Motor controller for electric vehicle |
| JP3336777B2 (en) * | 1994-10-25 | 2002-10-21 | 株式会社エクォス・リサーチ | Hybrid vehicle and hybrid vehicle control method |
| JP3608017B2 (en) * | 1996-07-22 | 2005-01-05 | トヨタ自動車株式会社 | Power system |
| JP3360613B2 (en) * | 1998-06-25 | 2002-12-24 | トヨタ自動車株式会社 | Battery control device |
| JP3488136B2 (en) * | 1999-05-26 | 2004-01-19 | 矢崎総業株式会社 | Battery remaining capacity measurement device |
| US6437460B1 (en) * | 1999-10-27 | 2002-08-20 | Daimlerchrysler Corporation | Low power supervisor controller |
| US20070139012A1 (en) * | 2005-11-01 | 2007-06-21 | Aerovironment, Inc. | Motive power dual battery pack |
| KR101189885B1 (en) * | 2010-10-19 | 2012-10-10 | 산요덴키가부시키가이샤 | Power supply device, and vehicle and electrical storage device each equipped with same |
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