CN106740131B - The monitoring method of electric quantity of batteries of electric vehicle, apparatus and system, monitoring server - Google Patents
The monitoring method of electric quantity of batteries of electric vehicle, apparatus and system, monitoring server Download PDFInfo
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- CN106740131B CN106740131B CN201611186922.1A CN201611186922A CN106740131B CN 106740131 B CN106740131 B CN 106740131B CN 201611186922 A CN201611186922 A CN 201611186922A CN 106740131 B CN106740131 B CN 106740131B
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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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
-
- 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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/12—Recording operating variables ; Monitoring of operating variables
-
- 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
- B60L2240/547—Voltage
-
- 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
- B60L2240/549—Current
-
- 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)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Secondary Cells (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention provides a kind of monitoring method of electric quantity of batteries of electric vehicle, apparatus and system, monitoring servers, wherein method includes: the current parameters information and open-circuit voltage parameter information of periodically acquisition battery；The first state-of-charge of battery is estimated according to the current parameters use of information current integration method；The second state-of-charge of open circuit voltage method estimation battery is utilized according to the open-circuit voltage parameter information；The first alarm command is generated according to first state-of-charge and second state-of-charge.The present invention can accurately monitor the remaining capacity of batteries of electric automobile, when the remaining capacity of battery is too low, reminds user to charge lead-acid battery, battery over-discharge is prevented, to extend the service life of battery.
Description
Technical field
The present invention relates to electric vehicle engineering field more particularly to the monitoring method of batteries of electric automobile remaining capacity, tools
It is exactly monitoring method, the apparatus and system, monitoring server of a kind of electric quantity of batteries of electric vehicle for body.
Background technique
Electric car (BEV) refers to using vehicle power supply as power, with motor driven wheels travel, meets road traffic, peace
The vehicle of full regulation requirements.Since effect on environment is smaller with respect to orthodox car, its prospects are considered optimistic wildly, but due to electricity
The battery of electrical automobile repairs complexity, and the reasons such as the charging time is long, and course continuation mileage is short, current electric car is difficult to large-scale promotion.
The characteristics of lead-acid battery is also known as lead-acid accumulator, cheap with its, voltage stabilization has been widely used as low
The power battery of fast electric car.It is long-term in lead-acid battery since there is lead-acid battery interior electricity voluntarily to consume, the characteristic of self discharge
Shelve or electric car for a long time be not used when, the self-discharge characteristics of lead-acid battery is likely to result in lead-acid battery overdischarge, performance
The problems such as decline, and then the service life of lead-acid battery can be reduced.
In order to correctly safeguard lead-acid battery, extend the service life of lead-acid battery, the prior art by acquiring lead-acid battery in real time
State-of-charge (SOC, State of Charge) monitor the remaining capacity of lead-acid battery, to avoid putting certainly for lead-acid battery
The performance for supplying electricity to battery impacts.But the method for these monitoring battery dump energies is usually extremely complex, and monitors electricity
The equipment manufacturing cost of pond remaining capacity is more expensive.The rising that will lead to the price of vehicle in the cost of spare and accessory parts, due to low speed electricity
Electrical automobile towards be exactly low-end market, will affect in this way low-speed electronic depot family the market competitiveness.
Therefore, the monitoring method for studying a kind of lead-acid battery remaining capacity of low cost has become low-speed electronic garage industry
Problem anxious to be resolved.
Summary of the invention
In view of this, the technical problem to be solved in the present invention is that providing a kind of monitoring side of electric quantity of batteries of electric vehicle
Method, apparatus and system, monitoring server, solving in the prior art can not be inexpensive, effective monitoring lead-acid battery remaining capacity
The problem of.
In order to solve the above-mentioned technical problem, a specific embodiment of the invention provides a kind of prison of electric quantity of batteries of electric vehicle
Prosecutor method, comprising: the periodically current parameters information and open-circuit voltage parameter information of acquisition battery；Believed according to the current parameters
Breath estimates the first state-of-charge of battery using current integration method；Open circuit voltage method is utilized according to the open-circuit voltage parameter information
Estimate the second state-of-charge of battery；The first alarm is generated according to first state-of-charge and second state-of-charge to refer to
It enables.
A specific embodiment of the invention also provides a kind of monitoring device of electric quantity of batteries of electric vehicle, comprising: acquisition is single
Member, for periodically acquiring the current parameters information and open-circuit voltage parameter information of battery；First evaluation unit, for according to institute
State the first state-of-charge of current parameters use of information current integration method estimation battery；Second evaluation unit, for according to
Open-circuit voltage parameter information estimates the second state-of-charge of battery using open circuit voltage method；Monitoring unit, for according to described the
One state-of-charge and second state-of-charge generate the first alarm command.
A specific embodiment of the invention also provides a kind of monitoring server of electric quantity of batteries of electric vehicle, comprising: receives
Unit, for receiving the first state-of-charge and the second state-of-charge of battery from monitoring device, wherein first state-of-charge
It is that the monitoring device is estimated according to current parameters use of information current integration method, second state-of-charge is the monitoring
Device utilizes open circuit voltage method estimation according to open-circuit voltage parameter information；Monitoring unit, for according to the described first charged shape
State and second state-of-charge generate the first alarm command.
A specific embodiment of the invention also provides a kind of system of electric quantity of batteries of electric vehicle, comprising: multiple monitoring dresses
The monitoring server set, connect with multiple monitoring devices, and the multiple user terminals being connect with the monitoring server.
Wherein, the monitoring server is used to receive the alarm signal that the monitoring device is sent；The user terminal is for passing through institute
It states monitoring server and receives the alarm signal from the monitoring device.
A specific embodiment of the invention also provides a kind of system of electric quantity of batteries of electric vehicle, comprising: monitoring server,
The multiple monitoring devices being connect with the monitoring server, and the multiple user terminals being connect with the monitoring server.Its
In, the monitoring device is used to receive the alarm signal that the monitoring server is sent；The user terminal is described for receiving
The alarm signal that monitoring server is sent.
Above-mentioned specific embodiment according to the present invention is it is found that the monitoring method of electric quantity of batteries of electric vehicle, device and be
System, monitoring server at least have the advantages that the current parameters information of period acquisition lead-acid battery, and using ampere-hour product
Point-score is according to the first state-of-charge SOC1 of the current parameters data-evaluation lead-acid battery of acquisition；Periodically acquire lead-acid battery
Open-circuit voltage parameter information, and use open circuit voltage method estimates the second lotus of the electrical storage device according to open-circuit voltage parameter information
Electricity condition SOC2；Finally, according to the size of the difference and preset threshold of the first state-of-charge SOC1 and the second state-of-charge SOC2
Confirm whether the electricity of lead-acid battery is too low.The present invention can accurately monitor the remaining capacity of lead-acid battery, when lead-acid battery
When remaining capacity is too low, warning message is generated, reminds user to charge lead-acid battery, facilitates user in time to lead-acid battery
It charges, extends the service life of lead-acid battery.
It is to be understood that above-mentioned general description and following specific embodiments are merely illustrative and illustrative, not
The range of the invention to be advocated can be limited.
Detailed description of the invention
Following appended attached drawing is part of specification of the invention, depicts example embodiments of the present invention, institute
Attached drawing is used to illustrate the principle of the present invention together with the description of specification.
Fig. 1 is a kind of embodiment one of the monitoring method for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides
Flow chart；
Fig. 2 is a kind of embodiment two of the monitoring method for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides
Flow chart；
Fig. 3 is a kind of embodiment three of the monitoring method for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides
Flow chart；
Fig. 4 is a kind of example IV of the monitoring method for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides
Flow chart；
Fig. 5 is a kind of embodiment five of the monitoring method for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides
Flow chart；
Fig. 6 is a kind of embodiment six of the monitoring method for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides
Flow chart；
Fig. 7 is a kind of embodiment seven of the monitoring method for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides
Flow chart；
Fig. 8 is a kind of embodiment eight of the monitoring method for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides
Flow chart；
Fig. 9 is a kind of embodiment one of the monitoring device for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides
Schematic block diagram；
Figure 10 is a kind of embodiment of the monitoring device for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides
Two schematic block diagram；
Figure 11 is a kind of embodiment of the monitoring device for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides
Three schematic block diagram；
Figure 12 is a kind of embodiment of the monitoring device for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides
Four schematic block diagram；
Figure 13 is a kind of implementation of the monitoring server for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides
The schematic block diagram of example one；
Figure 14 is a kind of implementation of the monitoring server for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides
The schematic block diagram of example two；
Figure 15 is a kind of implementation of the monitoring server for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides
The schematic block diagram of example three；
Figure 16 is a kind of embodiment of the monitoring system for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides
One schematic block diagram；
Figure 17 is a kind of embodiment of the monitoring system for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides
Two schematic block diagram；
Figure 18 is that a kind of structure of the monitoring system for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides is shown
It is intended to；
Figure 19 is a kind of embodiment of the monitoring system for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides
One timing diagram；
Figure 20 is a kind of embodiment of the monitoring system for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides
Two timing diagram.
Specific embodiment
Understand in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below will with attached drawing and in detail
Narration clearly illustrates the spirit of disclosed content, and any skilled artisan is understanding the content of present invention
After embodiment, when the technology that can be taught by the content of present invention, it is changed and modifies, without departing from the essence of the content of present invention
Mind and range.
The illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but not as a limitation of the invention.
In addition, in the drawings and embodiments the use of element/component of same or like label is for representing same or like portion
Point.
About " first " used herein, " second " ... etc., not especially censure the meaning of order or cis-position,
It is non-to limit the present invention, only for distinguish with same technique term description element or operation.
About direction term used herein, such as: upper and lower, left and right, front or rear etc. are only the sides with reference to attached drawing
To.Therefore, the direction term used is intended to be illustrative and not intended to limit this creation.
It is open term, i.e., about "comprising" used herein, " comprising ", " having ", " containing " etc.
Mean including but not limited to.
About it is used herein " and/or ", including any of the things or all combination.
About term used herein " substantially ", " about " etc., to modify it is any can be with the quantity or mistake of microvariations
Difference, but this slight variations or error can't change its essence.In general, microvariations that such term is modified or error
Range in some embodiments can be 20%, in some embodiments can be 10%, can be in some embodiments 5% or its
His numerical value.It will be understood by those skilled in the art that the aforementioned numerical value referred to can be adjusted according to actual demand, it is not limited thereto.
It is certain to describe the word of the application by lower or discuss in the other places of this specification, to provide art technology
Personnel's guidance additional in relation to the description of the present application.
Fig. 1 is a kind of embodiment one of the monitoring method for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides
Flow chart, as shown in Figure 1, periodically acquisition battery current parameters information and open-circuit voltage parameter information, joined according to electric current
Number information and open-circuit voltage parameter information calculate separately the first state-of-charge and the second state-of-charge, finally according to the first charged shape
State and the second state-of-charge generate alarm command.
The specific embodiment shown in the drawings includes:
Step 101: the periodically current parameters information and open-circuit voltage parameter information of acquisition battery.Specific reality of the invention
It applies in example, battery may include lead-acid battery, lithium battery and nickel-metal hydride battery etc..Period can be 3 seconds~10 minutes etc..
Step 102: the first state-of-charge SOC1 of battery is estimated according to the current parameters use of information current integration method.
Step 103: the second state-of-charge of open circuit voltage method estimation battery is utilized according to the open-circuit voltage parameter information
SOC2。
Step 104: the first alarm being generated according to the first state-of-charge SOC1 and the second state-of-charge SOC2 and is referred to
It enables.Specifically, if the difference of the first state-of-charge SOC1 and the second state-of-charge SOC2 are more than or equal to the first preset threshold,
Illustrate that battery dump energy is too low, needs to charge the battery.
Referring to Fig. 1, the first alarm command, Jin Ergen are generated according to the first state-of-charge SOC1 and the second state-of-charge SOC2
User is reminded according to the first alarm command, can accurately monitor the remaining capacity of battery, it, can be with when the remaining capacity of battery is too low
Warning message is generated, reminds user to charge the battery, battery over-discharge is prevented, to extend the service life of battery.
Fig. 2 is a kind of embodiment two of the monitoring method for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides
Flow chart, as shown in Fig. 2, if the difference of the first state-of-charge and the second state-of-charge be more than or equal to preset threshold, recognize
It is too low for battery dump energy.
In the specific embodiment shown in the drawings, step 104, specifically include:
Step 1041: calculating the state-of-charge difference of first state-of-charge and second state-of-charge.It is specific next
It says, after exactly subtracting each other the first state-of-charge and the second state-of-charge, obtains state-of-charge difference.
Step 1042: the size of the state-of-charge difference and the first preset threshold.It is specifically exactly to judge lotus
Whether electricity condition difference is more than or equal to the first preset threshold.
Step 1043: when the state-of-charge difference is more than or equal to first preset threshold, it is alert to generate described first
Report instruction.
Referring to fig. 2, after battery is fully charged, with the reduction of battery dump energy, the first state-of-charge and the second charged shape
Whether the difference of state is increasing, too low so as to effective monitoring battery dump energy, realizes simple.
Fig. 3 is a kind of embodiment three of the monitoring method for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides
Flow chart, as shown in figure 3, when judge the remaining capacity of battery it is whether too low monitoring server (monitoring server with it is electronic
Monitoring device wireless communication on automobile) in when realizing, if battery dump energy is too low, monitoring server is to electric car
Or/and user terminal sends alarm signal.
In the specific embodiment shown in the drawings, after step 104, this method further include:
Step 105: alarm signal is sent to monitoring device or/and user terminal according to first alarm command.
Referring to Fig. 3, for example, after monitoring server sends alarm signal to monitoring device according to the first alarm command, monitoring
Device sends triggering command to electric car, controls the car light periodic flicker of electric car or controls the loudspeaker of electric car
Periodically pipe；Or/and monitoring server sends a prompt information (for example, short message to user terminal according to the first alarm command
Breath etc.).
Fig. 4 is a kind of example IV of the monitoring method for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides
Flow chart, as shown in figure 4, when judge the remaining capacity of battery it is whether too low vehicle end i.e. monitoring device (monitoring device pacify
In electric car) in realize when, if battery dump energy is too low, monitoring device trigger electric car alarm.
In the specific embodiment shown in the drawings, after step 104, this method further include:
Step 106: electric car alarm is triggered according to first alarm command.
Referring to fig. 4, monitoring device triggers electric car alarm according to the first alarm command.Specifically, monitoring device root
A triggering command is sent to electric car according to the first alarm command, car light periodic flicker or the control for controlling electric car are electronic
The loudspeaker of automobile periodically pipe.
Fig. 5 is a kind of embodiment five of the monitoring method for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides
Flow chart, as shown in figure 5, monitoring the remaining capacity of battery in order to be more accurate, it is alert to generate second according to the second state-of-charge
Report instruction.
In the specific embodiment shown in the drawings, after step 103, this method further include:
Step 107: the second alarm command is generated according to second state-of-charge.It specifically, is exactly the second charged shape
When state is less than or equal to the second preset threshold, determine that battery dump energy is too low.
Referring to Fig. 5, according only to the remaining capacity of the second state-of-charge monitoring battery, dual prison is carried out to battery dump energy
Control, can the more accurate remaining capacity for monitoring battery.
Fig. 6 is a kind of embodiment six of the monitoring method for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides
Flow chart, as shown in fig. 6, when the second state-of-charge be less than or equal to the second preset threshold when, generate the second alarm command.
In the specific embodiment shown in the drawings, step 107 is specifically included:
Step 1071: the size of second state-of-charge and the second preset threshold.It is specifically exactly to judge
Whether two state-of-charges are less than or equal to the second preset threshold.
Step 1072: when second state-of-charge is less than or equal to second preset threshold, it is alert to generate described second
Report instruction.
Referring to Fig. 6, only by the second state-of-charge monitor battery remaining capacity, with pass through the first state-of-charge and second
The remaining capacity that state-of-charge monitors battery constitutes dual judgement, can the more accurate remaining capacity for monitoring battery.
Fig. 7 is a kind of embodiment seven of the monitoring method for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides
Flow chart, as shown in fig. 7, when judge battery remaining capacity whether too it is low realized on monitoring server when, if electronic
Automobile battery power is too low, then monitoring server sends alarm signal to monitoring device or/and user terminal.
In the specific embodiment shown in the drawings, after step 107, this method further include:
Step 108: alarm signal is sent to monitoring device or/and user terminal according to second alarm command.
Referring to Fig. 7, when judge battery remaining capacity whether too it is low realized on monitoring server when, if electric car
Battery capacity is too low, then sends alarm signal to electric car or/and user terminal, and user is reminded to charge the battery.
Fig. 8 is a kind of embodiment eight of the monitoring method for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides
Flow chart, as shown in figure 8, when whether the remaining capacity for judging battery too low realized on vehicle end i.e. monitoring device when, such as
Fruit batteries of electric automobile remaining capacity is too low, then monitoring device sends alarm signal to user terminal by server.
In the specific embodiment shown in the drawings, after step 107, this method further include:
Step 109: electric car alarm is triggered according to second alarm command.
Referring to Fig. 8, when whether the remaining capacity for judging battery is too low realizes on vehicle end i.e. monitoring device, if electric
Electrical automobile battery dump energy is too low, then triggers electric car alarm, user is reminded to charge the battery.
Fig. 9 is a kind of embodiment one of the monitoring device for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides
Schematic block diagram, if the whether too low judging process of remaining capacity occurs to occur on monitoring device in vehicle end, then supervise
Device is controlled as shown in figure 9, monitoring device as shown in Figure 9 can be applied in preceding method, when monitoring device monitoring battery
When remaining capacity, the current parameters information and open-circuit voltage parameter information of monitoring device periodically acquisition battery are joined according to electric current
Number information and open-circuit voltage parameter information calculate separately the first state-of-charge and the second state-of-charge, finally according to the first charged shape
State and the second state-of-charge generate the first alarm command.
In the specific embodiment shown in the drawings, monitoring device includes: acquisition unit 1, the first evaluation unit 2, second
Evaluation unit 3 and monitoring unit 4.Wherein, acquisition unit 1 is for periodically acquiring the current parameters information and open-circuit voltage of battery
Parameter information；First evaluation unit 2 is used to estimate the first lotus of battery according to the current parameters use of information current integration method
Electricity condition；Second evaluation unit 3 is used for second using open circuit voltage method estimation battery according to the open-circuit voltage parameter information
State-of-charge；Monitoring unit 4 is used to generate the first alarm command according to first state-of-charge and second state-of-charge.
Referring to Fig. 9, monitoring device generates alarm command according to the first state-of-charge and the second state-of-charge, can accurately supervise
The remaining capacity for controlling battery can produce warning message when the remaining capacity of battery is too low, and user is reminded to fill battery
Electricity prevents battery over-discharge, to extend the service life of battery.
Figure 10 is a kind of embodiment of the monitoring device for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides
Two schematic block diagram, as shown in Figure 10, if the difference of the first state-of-charge and the second state-of-charge is more than or equal to preset threshold,
Then think that battery dump energy is too low.
In the specific embodiment shown in the drawings, the monitoring unit 4 is specifically included: computing module 41, comparison module
42 and generation module 43, wherein computing module 41 is used to calculate the lotus of first state-of-charge and second state-of-charge
Electricity condition difference；Comparison module 42 is used for the size of the state-of-charge difference and the first preset threshold；Generation module 43
For generating first alarm command when the state-of-charge difference is more than or equal to first preset threshold.
Referring to Figure 10, after battery is fully charged, with the reduction of battery dump energy, the first state-of-charge and the second charged shape
The difference of state is increasing, if difference is greater than the first preset threshold, illustrates that battery dump energy crosses you, so as to effectively supervise
It whether too low controls battery dump energy, realizes simple.
Figure 11 is a kind of embodiment of the monitoring device for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides
Three schematic block diagram, as shown in figure 11, when judging that whether too low (monitoring device is mounted on electricity to battery dump energy in monitoring device
In electrical automobile) in complete when, if battery dump energy is too low, monitoring device to monitoring server send alarm signal, prison
It controls server and forwards the alarm signal to user terminal.
In the specific embodiment shown in the drawings, which further includes transmission unit 5, wherein transmission unit 5 is used
Alarm signal is sent to user terminal in passing through monitoring server according to first alarm command.
Referring to Figure 11, if battery dump energy is too low, monitoring device sends alarm signal, monitoring to monitoring server
Server forwards alarm signal to user terminal, reminds user to charge the battery, battery over-discharge is prevented, to extend electricity
The pond service life.
Figure 12 is a kind of embodiment of the monitoring device for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides
Four schematic block diagram, as shown in figure 12, when (monitoring device is mounted on electric car to monitoring battery dump energy in monitoring device
In) in realize when, if battery dump energy is too low, monitoring device trigger electric car alarm.
In the specific embodiment shown in the drawings, which further includes trigger unit 6, wherein trigger unit 6 is used
It alarms in triggering electric car according to first alarm command.
Referring to Figure 12, monitoring device triggers electric car according to the first alarm command and alarms.Specifically, monitoring device to
Electric car sends a triggering command, and the car light periodic flicker or loudspeaker for controlling electric car periodically pipe.
In a specific embodiment of the invention, monitoring unit 4 is also used to generate second according to second state-of-charge alert
Report instruction.The comparison module 42 is also used to the size of the second state-of-charge and the second preset threshold described in comparison；The generation
Module 43 is also used to generate second alarm command when second state-of-charge is less than or equal to the second threshold.It is described
Transmission unit 5 is also used to send alarm signal to user terminal by monitoring server according to second alarm command.It is described
Trigger unit 6 is also used to trigger electric car alarm according to second alarm command.Only pass through the second state-of-charge monitoring electricity
The remaining capacity in pond constitutes dual judgement with the remaining capacity for monitoring battery by the first state-of-charge and the second state-of-charge,
It can the more accurate remaining capacity for monitoring battery.
Figure 13 is a kind of implementation of the monitoring server for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides
The schematic block diagram of example one, if the whether too low judging process of remaining capacity occurs in server end, monitoring server is as schemed
Shown in 13, and monitoring device includes: acquisition unit 1, the first evaluation unit 2, the second evaluation unit 3 and transmission unit 5.Its
In, acquisition unit 1 is for periodically acquiring the current parameters information and open-circuit voltage parameter information of battery；First evaluation unit 2
For estimating the first state-of-charge of battery according to the current parameters use of information current integration method；Second evaluation unit 3 is used
In the second state-of-charge according to the open-circuit voltage parameter information using open circuit voltage method estimation battery；Transmission unit 5 is used for
Monitoring server is sent by the first state-of-charge and the second state-of-charge.Monitoring server can be applied to as shown in fig. 13 that
In preceding method, when the remaining capacity of monitoring server monitoring battery, the current parameters of monitoring device periodically acquisition battery
Then the first state-of-charge estimated and the second state-of-charge are sent to by information and open-circuit voltage parameter information, monitoring device
Monitoring server；Monitoring server generates the first alarm command further according to the first state-of-charge and the second state-of-charge.
In the specific embodiment shown in the drawings, monitoring server includes: receiving unit 10 and monitoring unit 20,
In, receiving unit 10 is used to receive the first state-of-charge and the second state-of-charge of battery from monitoring device, wherein described first
State-of-charge is that the monitoring device is estimated according to current parameters use of information current integration method, and second state-of-charge is
The monitoring device utilizes open circuit voltage method estimation, the monitoring device periodically acquisition electricity according to open-circuit voltage parameter information
The current parameters information and open-circuit voltage parameter information in pond；Monitoring unit 20 is used for according to first state-of-charge and described the
Two state-of-charges generate the first alarm command.
Referring to Figure 13, monitoring server generates the first alarm command according to the first state-of-charge and the second state-of-charge, into
And user is reminded to charge the battery according to the first alarm command.The present invention can accurately monitor the remaining capacity of battery, when
When the remaining capacity of battery is too low, warning message can produce, remind user to charge the battery, prevent battery over-discharge,
To extend the service life of battery.
Figure 14 is a kind of implementation of the monitoring server for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides
The schematic block diagram of example two, as shown in figure 14, if the difference of the first state-of-charge and the second state-of-charge is more than or equal to second in advance
If threshold value, then it is assumed that the remaining capacity of battery is too low.
In the specific embodiment shown in the drawings, monitoring unit 20 specifically includes computing module 201, comparison module 202
With generation module 203, wherein computing module 201 is used to calculate the lotus of first state-of-charge and second state-of-charge
Electricity condition difference；Comparison module 202 is used for the size of the state-of-charge difference and the first preset threshold；Generation module
203 for generating the first alarm command when the state-of-charge difference is more than or equal to first preset threshold.
Referring to Figure 14, after battery is fully charged, with the reduction of battery dump energy, the first state-of-charge and the second charged shape
The difference of state is increasing, therefore, by comparing the size of difference and preset threshold may determine that battery remaining capacity whether
It is too low, can whether too low with effective monitoring battery dump energy, it realizes simple.
Figure 15 is a kind of implementation of the monitoring server for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides
The schematic block diagram of example three, as shown in figure 15, when the remaining capacity of monitoring battery is in monitoring server (monitoring server and electronic vapour
Monitoring device wireless communication on vehicle) in when realizing, if battery dump energy is too low, monitoring server is to electric car
Or/and user terminal sends alarm signal.
In the specific embodiment shown in the drawings, which further includes transmission unit 30, wherein transmission unit
30 for sending alarm signal to monitoring device or/and user terminal according to first alarm command.
Referring to Figure 15, monitoring server sends alarm signal to monitoring device or/and user terminal according to the first alarm command
Number, remind user to charge the battery.Specifically, monitoring server sends to monitoring device according to the first alarm command and reports
After alert signal, monitoring device sends a triggering command to electric car, controls the car light flashing of electric car or controls electronic
The loudspeaker of automobile periodically pipe；Or/and monitoring server sends a prompt information to user terminal according to the first alarm command
(for example, short message etc.).
In the specific embodiment of the invention, monitoring unit 20 is also used to generate the second alarm according to second state-of-charge
Instruction.Comparison module 202 is also used to the size of the second state-of-charge and the second preset threshold described in comparison；Generation module 203 is also
For generating second alarm command when second state-of-charge is less than or equal to second preset threshold.Transmission unit
30 are also used to send alarm signal to monitoring device or/and user terminal according to second alarm command.Only pass through the second lotus
Electricity condition monitors the remaining capacity of battery, carries out dual monitoring to battery dump energy, more accurate can monitor the surplus of battery
Remaining electricity.
Figure 16 is a kind of embodiment of the monitoring system for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides
One schematic block diagram judges whether the remaining capacity of battery is too low in vehicle end i.e. monitoring device (monitoring device as shown in figure 16
Be mounted in electric car) in realize, wherein monitoring system includes: monitoring device 1000, connect with the monitoring device 1000
Monitoring server 2000, and the user terminal 3000 being connect with the monitoring server 2000.Wherein, monitoring device 1000
It specifically includes: acquisition unit 1, the first evaluation unit 2, the second evaluation unit 3, monitoring unit 4 and transmission unit 5.Wherein, it acquires
Unit 1 is for periodically acquiring the current parameters information and open-circuit voltage parameter information of battery；First evaluation unit 2 is used for basis
First state-of-charge of the current parameters use of information current integration method estimation battery；Second evaluation unit 3 is used for according to institute
Open-circuit voltage parameter information is stated using the second state-of-charge of open circuit voltage method estimation battery；Monitoring unit 4 is used for according to
First state-of-charge and second state-of-charge generate the first alarm command；Transmission unit 5 is used for according to first alarm
Instruction sends alarm signal to user terminal 3000 by monitoring server 2000.The monitoring server 2000 is for receiving institute
State the alarm signal of the transmission of monitoring device 1000；The user terminal 3000 is used for through the monitoring server 2000 from described
Monitoring device 1000 receives the alarm signal.
Referring to Figure 16, monitoring device 1000 is installed on electric car, and monitoring device 1000 not only acquires the electric current of battery
Parameter information and open-circuit voltage parameter information, and the first state-of-charge and the second state-of-charge are specifically calculated, and according to first
State-of-charge and the second state-of-charge generate alarm command.The remaining capacity that battery can accurately be monitored, when the residue electricity of battery
When measuring too low, alarm signal is generated, reminds user to charge the battery, prevents battery over-discharge, to extend plumbic acid electricity
The service life in pond.
Figure 17 is a kind of embodiment of the monitoring system for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides
Two schematic block diagram judges whether the remaining capacity of battery is too low and realizes on monitoring server as shown in figure 17, the monitoring system
The monitoring device 1000 that system includes: monitoring server 2000, is connect with the monitoring server 2000, and taken with the monitoring
The user terminal 3000 that business device 2000 connects.Wherein, monitoring device 1000 includes: acquisition unit 1, the first evaluation unit 2, second
Evaluation unit 3 and transmission unit 5.Wherein, acquisition unit 1 is for periodically acquiring the current parameters information and open-circuit voltage of battery
Parameter information；First evaluation unit 2 is used to estimate the first lotus of battery according to the current parameters use of information current integration method
Electricity condition；Second evaluation unit 3 is used for second using open circuit voltage method estimation battery according to the open-circuit voltage parameter information
State-of-charge；Transmission unit 5 is used to send monitoring server 2000 for the first state-of-charge and the second state-of-charge.Monitoring clothes
Business device 2000 includes: receiving unit 10, monitoring unit 20 and transmission unit 30, wherein receiving unit 10 is used for from monitoring device
1000 receive the first state-of-charge and the second state-of-charge of battery, wherein first state-of-charge is the monitoring device
1000 according to the estimation of current parameters use of information current integration method, and second state-of-charge is the monitoring device 1000
Open circuit voltage method estimation, the electric current ginseng of the monitoring device 1000 periodically acquisition battery are utilized according to open-circuit voltage parameter information
Number information and open-circuit voltage parameter information；Monitoring unit 20 is used for according to first state-of-charge and second state-of-charge
Generate the first alarm command；Transmission unit 30 is used for whole to monitoring device 1000 or/and user according to first alarm command
End 3000 sends alarm signal.The monitoring device 1000 is used to receive the alarm signal that the monitoring server 2000 is sent；
The user terminal 3000 is used to receive the alarm signal that the monitoring server 2000 is sent.
Referring to Figure 17, monitoring device 1000 is installed on electric car, and monitoring device 1000 acquires the current parameters of battery
Information and open-circuit voltage parameter information, and according to the first state-of-charge of current parameters data-evaluation and according to open-circuit voltage parameter
The second state-of-charge of data-evaluation；Monitoring server 2000 receives the first state-of-charge and the second lotus that monitoring device 1000 is sent
Electricity condition, and alarm command is generated according to the first state-of-charge and the second state-of-charge.The residue electricity of battery can accurately be monitored
Amount generates alarm signal when the remaining capacity of battery is too low, reminds user to charge the battery, prevents battery over-discharge,
To extend the service life of lead-acid battery.
Figure 18 is that a kind of structure of the monitoring system for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides is shown
It is intended to, as shown in figure 18, monitoring system includes: monitoring server 2000, multiple prisons for connecting with the monitoring server 2000
Control device 1000, and the multiple user terminals 3000 connecting with the monitoring server 2000.The setting of monitoring device 1000 exists
On electric car, the parameters of batteries of electric automobile can be acquired；Monitoring server 2000 wirelessly respectively with prison
It controls device 1000 and user terminal 3000 communicates.
Figure 19 is a kind of embodiment of the monitoring system for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides
One timing diagram, as shown in figure 19, monitoring device 1000 acquire the current parameters information and open-circuit voltage parameter information of battery, so
The first state-of-charge and the second state-of-charge are estimated according to current parameters information and open-circuit voltage parameter information respectively afterwards, further according to
First state-of-charge and the second state-of-charge generate alarm command；Electric car alarm is triggered according to alarm command, and passes through prison
It controls server 2000 and sends alarm signal to user terminal.
Figure 20 is a kind of embodiment of the monitoring system for electric quantity of batteries of electric vehicle that the specific embodiment of the invention provides
Two timing diagram, as shown in figure 20, monitoring device 1000 acquire the current parameters information and open-circuit voltage parameter information of battery, and
The first state-of-charge and the second state-of-charge are estimated respectively according to current parameters information and open-circuit voltage parameter information, then by
One state-of-charge and the second state-of-charge are sent to monitoring server 2000；Monitoring server 2000 receives monitoring device 1000 and sends out
The first state-of-charge and the second state-of-charge sent generates alarm command further according to the first state-of-charge and the second state-of-charge；
Alarm signal is sent to monitoring device 1000 and user terminal 3000 according to alarm command.
The above-mentioned embodiment of the present invention can be implemented in various hardware, Software Coding or both combination.For example, this hair
Bright embodiment can also be the execution above method in data signal processor (Digital Signal Processor, DSP)
Program code.The present invention can also refer to computer processor, digital signal processor, microprocessor or field-programmable gate array
Arrange the multiple functions that (Field Programmable Gate Array, FPGA) is executed.Above-mentioned processing can be configured according to the present invention
Device executes particular task, and machine-readable software code or the firmware generation of the ad hoc approach that the present invention discloses are defined by executing
Code is completed.Software code or firmware code can be developed as different program languages and different formats or form.Can also be
Different target platform composing software codes.However, executing software code and the other types configuration generation of task according to the present invention
Different code pattern, type and the language of code do not depart from spirit and scope of the invention.
The foregoing is merely the schematical specific embodiments of the present invention, before not departing from conceptions and principles of the invention
It puts, the equivalent changes and modifications that any those skilled in the art is made should belong to the scope of protection of the invention.
Claims (15)
1. a kind of monitoring method of electric quantity of batteries of electric vehicle, which is characterized in that this method comprises:
The periodically current parameters information and open-circuit voltage parameter information of acquisition battery；
The first state-of-charge of battery is estimated according to the current parameters use of information current integration method；
The second state-of-charge of open circuit voltage method estimation battery is utilized according to the open-circuit voltage parameter information；And
The first alarm command is generated according to first state-of-charge and second state-of-charge, comprising: calculates described first
The state-of-charge difference of state-of-charge and second state-of-charge；Compare the state-of-charge difference and the first preset threshold
Size；And when the state-of-charge difference is more than or equal to first preset threshold, generate first alarm command, institute
The first alarm command is stated for reminding user to charge the battery；
The second alarm command is generated according to second state-of-charge, comprising: second state-of-charge and second is preset
The size of threshold value；And when second state-of-charge is less than or equal to second preset threshold, generate second alarm
Instruction；Second alarm command is for reminding user to charge the battery；Wherein, first alarm command and described
Two alarm commands complete the dual judgement to battery dump energy.
2. the monitoring method of electric quantity of batteries of electric vehicle as described in claim 1, which is characterized in that this method further include:
Alarm signal is sent to monitoring device or/and user terminal according to first alarm command.
3. the monitoring method of electric quantity of batteries of electric vehicle as described in claim 1, which is characterized in that this method further include:
Electric car alarm is triggered according to first alarm command.
4. the monitoring method of electric quantity of batteries of electric vehicle as described in claim 1, which is characterized in that this method further include:
Alarm signal is sent to monitoring device or/and user terminal according to second alarm command.
5. the monitoring method of electric quantity of batteries of electric vehicle as described in claim 1, which is characterized in that this method further include:
Electric car alarm is triggered according to second alarm command.
6. a kind of monitoring device of electric quantity of batteries of electric vehicle, which is characterized in that the monitoring device includes:
Acquisition unit, for periodically acquiring the current parameters information and open-circuit voltage parameter information of battery；
First evaluation unit, for estimating the first charged shape of battery according to the current parameters use of information current integration method
State；
Second evaluation unit, for utilizing the second charged of open circuit voltage method estimation battery according to the open-circuit voltage parameter information
State；And
Monitoring unit, for generating the first alarm command according to first state-of-charge and second state-of-charge；It is described
Monitoring unit is also used to generate the second alarm command according to second state-of-charge；First alarm command is used for reminding
Family charges the battery, and second alarm command is for reminding user to charge the battery；Wherein, first alarm
Instruction and second alarm command complete the dual judgement to battery dump energy；
The monitoring unit includes:
Computing module, for calculating the state-of-charge difference of first state-of-charge and second state-of-charge；
Comparison module, for the size of the state-of-charge difference and the first preset threshold, the comparison module is also used to
Compare the size of second state-of-charge and the second preset threshold；And
Generation module, for generating first alarm when the state-of-charge difference is more than or equal to first preset threshold
Instruction, the generation module are also used to generate described the when second state-of-charge is less than or equal to second preset threshold
Two alarm commands.
7. the monitoring device of electric quantity of batteries of electric vehicle as claimed in claim 6, which is characterized in that the monitoring device also wraps
It includes:
Transmission unit, for sending alarm signal to user terminal by monitoring server according to first alarm command.
8. the monitoring device of electric quantity of batteries of electric vehicle as claimed in claim 7, which is characterized in that the monitoring device also wraps
It includes:
Trigger unit, for triggering electric car alarm according to first alarm command.
9. the monitoring device of electric quantity of batteries of electric vehicle as claimed in claim 8, which is characterized in that the transmission unit is also used
Alarm signal is sent to user terminal in passing through monitoring server according to second alarm command.
10. the monitoring device of electric quantity of batteries of electric vehicle as claimed in claim 8, which is characterized in that the trigger unit is also
For triggering electric car alarm according to second alarm command.
11. a kind of monitoring server of electric quantity of batteries of electric vehicle, which is characterized in that the monitoring server includes:
Receiving unit, for receiving the first state-of-charge and the second state-of-charge of battery from monitoring device, wherein described first
State-of-charge is that the monitoring device is estimated according to current parameters use of information current integration method, and second state-of-charge is
The monitoring device utilizes open circuit voltage method estimation according to open-circuit voltage parameter information；And
Monitoring unit, for generating the first alarm command according to first state-of-charge and second state-of-charge；It is described
Monitoring unit is also used to generate the second alarm command according to second state-of-charge；First alarm command is used for reminding
Family charges the battery, and second alarm command is for reminding user to charge the battery；Wherein, first alarm
Instruction and second alarm command complete the dual judgement to battery dump energy；The monitoring unit specifically includes:
Computing module, for calculating the state-of-charge difference of first state-of-charge and second state-of-charge；
Comparison module, for the size of the state-of-charge difference and the first preset threshold, the comparison module is also used to
Compare the size of second state-of-charge and the second preset threshold；And
Generation module, for generating first alarm when the state-of-charge difference is more than or equal to first preset threshold
Instruction；The generation module is also used to generate described the when second state-of-charge is less than or equal to second preset threshold
Two alarm commands.
12. the monitoring server of electric quantity of batteries of electric vehicle as claimed in claim 11, which is characterized in that the monitoring server
Further include:
Transmission unit, for sending alarm signal to monitoring device or/and user terminal according to first alarm command.
13. the monitoring server of electric quantity of batteries of electric vehicle as claimed in claim 12, which is characterized in that the transmission unit
It is also used to send alarm signal to monitoring device or/and user terminal according to second alarm command.
14. a kind of monitoring system of electric quantity of batteries of electric vehicle, which is characterized in that the monitoring system includes: multiple as right is wanted
The monitoring server seeking 6~10 any monitoring devices, being connect with multiple monitoring devices, and taken with the monitoring
Multiple user terminals of business device connection, wherein
The monitoring server is used to receive the alarm signal that the monitoring device is sent；
The user terminal is used to receive the alarm signal from the monitoring device by the monitoring server.
15. a kind of monitoring system of electric quantity of batteries of electric vehicle, which is characterized in that the monitoring system includes: such as claim 11
~13 any monitoring servers, the multiple monitoring devices being connect with the monitoring server, and taken with the monitoring
Multiple user terminals of business device connection, wherein
The monitoring device is used to receive the alarm signal that the monitoring server is sent；
The user terminal is used to receive the alarm signal that the monitoring server is sent.
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| CN107791971A (en) * | 2017-10-31 | 2018-03-13 | 珠海城市职业技术学院 | Automobile storage battery monitoring method, computer installation, computer-readable recording medium |
| CN108344952B (en) * | 2018-02-26 | 2021-07-09 | 深圳市道通智能航空技术股份有限公司 | Battery electric quantity calculation method and device |
| CN111231678A (en) * | 2018-02-26 | 2020-06-05 | 杭州翼兔网络科技有限公司 | Electric automobile terminal |
| CN110580825A (en) * | 2019-08-02 | 2019-12-17 | 武汉新能源研究院有限公司 | Electric ship monitoring method and system |
| CN110341549B (en) * | 2019-08-06 | 2021-07-30 | 奇瑞汽车股份有限公司 | Monitoring method and device for automobile storage battery and storage medium |
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| JP4217192B2 (en) * | 2004-06-01 | 2009-01-28 | 富士重工業株式会社 | Control device for hybrid vehicle |
| US20120109556A1 (en) * | 2010-10-29 | 2012-05-03 | GM Global Technology Operations LLC | Band select state of charge weighted scaling method |
| CN103529393A (en) * | 2013-10-22 | 2014-01-22 | 南京汽车集团有限公司 | SOC (start of charge) estimation method of automobile power lithium battery |
| CN203786271U (en) * | 2014-04-22 | 2014-08-20 | 桂林电子科技大学 | Device for testing state of charge (SOC) of electric automobile battery pack |
| CN104375090B (en) * | 2014-11-12 | 2017-05-24 | 国网重庆市电力公司电力科学研究院 | Rechargeable lithium battery remaining capacity remote monitoring method |
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