CN107284275A - Electric car control panel and its charge/discharge control method with display device - Google Patents
Electric car control panel and its charge/discharge control method with display device Download PDFInfo
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- CN107284275A CN107284275A CN201710568365.8A CN201710568365A CN107284275A CN 107284275 A CN107284275 A CN 107284275A CN 201710568365 A CN201710568365 A CN 201710568365A CN 107284275 A CN107284275 A CN 107284275A
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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
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
- B60L58/14—Preventing excessive discharging
-
- 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
- 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
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
- G01R31/3842—Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a kind of electric car control panel and its charge/discharge control method with display device, the control panel includes signal processor, polling module, discharge module, charging module and display device；The signal input part of signal processor connects the signal output part of polling module, and its signal output part connects the signal input part of discharge module and charging module respectively；The signal input part connection signal processor or the signal output part of polling module of display device；The signal input part connection battery pack two ends of polling module and its series connection tap terminals of each modular battery；Display device is used to provide information for the outside of the control panel；With electric car control panel of the present invention and charge/discharge control method, the discharge condition of each modular battery can be understood in real time by display device, and control capability falls behind modular battery and is not overcharged by deep discharge and not, extends the service life of battery of electric vehicle group.
Description
Technical field
The present invention relates to the control panel design field of electric car, more particularly to a kind of electric car electricity with display device
Control equipment and its charge/discharge control method.
Background technology
The power battery pack and its charge and discharge control of electric automobile are technical bottlenecks, and power battery pack requires high voltage, is
This needs numerous batteries to be used in series, so as to produce management of charging and discharging problem；Management of charging and discharging controls that to monomer cost can be caused
Too high, often selection control is to modular battery in practicality, and the modular battery of industry generally meaning is A-battery group, for example lead storage
Battery is often referred to many lattice disjunctor batteries, and nickel-based battery is often referred to the outer series battery of monomer, and lithium battery had been often referred to monomer internally both
Series connection and battery bag in parallel.
In routine techniques, the electric discharge management of electric car is typically the final voltage value for controlling whole group battery, will cause electricity
The long-term deep discharge of the modular battery of certain capacity lagging, terminates the life-span in advance in the group of pond；Charge Management pattern is mostly to become the multistage
The constant voltage management in electric current combined charge latter stage is changed, when charging voltage management object is whole group battery, battery pack can be led to
The modular battery of middle capacity lagging is overcharged；Also technical scheme proposes charging voltage managing object control to modular battery,
Although in fact, this technical scheme charged for modular battery can be filled each modular battery, due to whole group electricity
Modular battery capacity in pond is unbalanced, can be led to that more depth occurs when next whole group is discharged for the modular battery of capacity lagging
Electric discharge, accelerate capacity attenuation.
Series battery why short life, one of important technology reason be without in time find battery pack in certain hold
Measure backward modular battery, if using the minium operation voltage of capacity lagging modular battery as terminate battery power discharge according to
According to, it is possible to prevent modular battery deep discharge；If similarly in charging using fall behind the actual capacity of modular battery as management according to
According to, it is possible to prevent that the modular battery of capacity lagging from being overcharged.Therefore, industry wishes to seek to one kind to find that capacity falls in time
Afterwards modular battery, effectively prevent capacity lagging modular battery by deep discharge and the technical scheme being overcharged, reach extension string
Join battery pack service life, reduce the purpose of battery use cost.
The content of the invention
It is an object of the present invention to the above-mentioned technology existed for the conventional management of charging and discharging of series battery of electric car
Defect is there is provided a kind of electric car control panel with display device, and the equipment has for the outside control for providing information data
Function, can prevent capacity lagging modular battery by deep discharge and be overcharged, and can effectively extend capacity lagging modular battery
Matching service life, reduce series battery replacement cost.Heretofore described modular battery, is included but are not limited to
Many lattice disjunctor batteries, outer series battery and battery bag commonly referred to as.
To realize above-mentioned technical purpose, the invention provides a kind of electric car control panel with display device, the electricity
Motor-car control panel includes：Signal processor, polling module, charging module, discharge module and display device；At described signal
Managing device at least includes voltage signal comparing function and logical process function, and its signal input part connects the signal of the polling module
Output end, its signal output part connects the signal input part of the discharge module and charging module respectively；The display device is used
Information is provided outside for the electric car control panel；The power input of the discharge module connects the electric car
The two ends of battery pack, its power output end connects the discharge load of battery pack；The power output end connection electricity of the charging module
The two ends of pond group, its power input connects the external power source of the electric car；The signal input part connection of the polling module
The series connection tap terminals of each modular battery in the two ends of the battery pack and battery pack；Described electric car control panel is with described
The discharge voltage of any modular battery drops to set value calculation discharge module and terminated to battery power discharge, and with capacity lagging mould
Block battery is risen to the next charging operations that setting value performs constant real-time voltage value to battery pack by charging voltage.
In the present invention, the battery pack that the electric car control panel with display device is used is coordinated to include at least two
The modular battery being connected in series, and serial interface of the modular battery two ends in battery pack is provided with tap terminals.
It is described that described signal processor is built in the control program that battery pack performs constant voltage charging operation.
In above-mentioned technical proposal, the signal of the signal input part and signal processor or polling module of the display device is defeated
Go out end connection.
In above-mentioned technical proposal, the display mode of the display module includes：Digital-scroll technique, aspect, text importing
And auditory tone cues.
Improve, the signal processor of the electric car control panel, polling module, put as one kind of above-mentioned technical proposal
Discrete setting or selectivity combination are set between electric module, charging module and display device or shared integrated module is set.Institute
The selectivity combination stated is set, including integrated, the example the partial function or repertoire of the control submodule of each module
The partial function or repertoire of polling module are integrated in signal processor, discharge module collection integrated with charging module as described
Into design.The power supply output form of the discharge module is any, including the ripple that direct current, inversion are regular alternating current electricity and electric current
Shape, frequency are any.
It is foregoing with display dress present invention also offers one kind based on the above-mentioned electric car control panel with display device
The charge/discharge control method for the control panel put, this method includes：
Step 1) data routing inspection is carried out to the real-time discharge voltage of modules battery in battery pack using polling module, and
Utilize display device Dynamic Announce modules battery or/and the real-time discharge voltage data of battery pack；
Step 2) by signal processor receiving step 1) in the obtained corresponding voltage polling number of each modular battery of inspection
According to, and be compared described voltage polling data and the threshold values of storage setting in it by signal processor, work as signal processor
When the magnitude of voltage for detecting any modular battery drops to the threshold values of interior storage setting, send corresponding signal control discharge module and terminate
To the battery power discharge；
Step 3) utilize signal processor recording step 1) inspection obtains or step 2) terminate the battery power discharge moment and obtain
The minimum capacity lagging modular battery of discharge voltage value data；
Step 4) by step 2) or step 3) signal record, utilize signal processor to monitor the capacity lagging module
Battery next time charging voltage rise condition, when monitor the capacity lagging modular battery reached by charging voltage it is interior storage setting
Constant-voltage charge higher limit Vm/V when, signal processor using battery pack the moment real-time voltage value as constant voltage values,
Send constant-voltage charge programme-control charging module to charge to battery pack, charging module drops to setting to the charging current of battery pack
During value, the termination of constant current charge some time is transformed to；Described constant current value is chosen between 0.03-0.10C/A..
In above-mentioned technical proposal, described step 2) or step 3) also include：When terminating to battery power discharge, letter is utilized
Number processor, which records and stores the modules battery, is terminating the real-time voltage data of discharging time, and passes through display device
Stationary state shows the real-time voltage data of the modules battery.
In above-mentioned technical proposal, the step 4) described in the constant-voltage charge higher limit of setting is store in signal processor
Vm/V, the species of modular battery is determined in battery pack, described preferred national technical standards of constant-voltage charge higher limit Vm/V or
Recommendation of the industry to the kind of module battery.
A kind of the electric car control panel and its charge/discharge control method advantage with display device of the present invention is：
Electric car control panel with the present invention enters to the real-time voltage state of modules battery in series battery
Row signal acquisition, processing, to provide data outside control panel, control capability falls behind modular battery not by deep discharge and not by mistake
Charging, so as to extend the matching service life of modular battery, reduces battery replacement cost.
Brief description of the drawings
Fig. 1 is signal monitoring structural representation of the conventional control panel to battery pack.
Fig. 2 a are signal monitoring control structure schematic diagram of the control panel to battery pack in the present invention.
Fig. 2 b are the structure rough schematic views of the control panel shown in Fig. 2 a.
Fig. 3 is that signal processor combines the control panel logic control constructs schematic diagram set with polling module.
Fig. 4 is that charging module combines the control panel logic control constructs schematic diagram set with discharge module.
Fig. 5 is that charging module combines setting with discharge module and signal processor combines the automatically controlled of setting with polling module
Apparatus logic control structure schematic diagram.
Fig. 6 is the control panel logic control constructs schematic diagram of another setting display module.
Accompanying drawing is identified：
1st, battery pack 1a, the first modular battery 1b, the second modular battery
2nd, signal processor 3, polling module 4, display module
5th, discharge module 6, charging module 7, discharge load
9th, conventional discharge management system 10, normal charge management system
Embodiment
With reference to the accompanying drawings and examples further to a kind of electric car control panel with display device of the invention
And its charge/discharge control method is described in detail.
Shown in Fig. 1 it is one and the most simple of battery of electric vehicle group is constituted by the first modular battery 1a and the second modular battery 1b
The characteristics of stating example, conventional charge and discharge control be the two ends using two modular battery 1a/1b series connection as voltage signal monitoring object, often
Rule electric discharge management system 9 is all connected with the two ends of battery pack with normal charge management system 10, during electric discharge, when battery pack both end voltage
When dropping to design load, conventional discharge management system 9 is terminated to battery power discharge automatically, and this simple discharge control method is not
The true actual discharge voltage for predicting two modular battery 1a/1b, when two modular battery 1a/1b are unbalanced, necessarily there is it
In modular battery occur deep discharge.
Referring to shown in Fig. 2 a, in one embodiment, the electric car control panel with display device that the present invention is provided
Including：Polling module 3, signal processor 2, discharge module 5, charging module 6 and display device 4, wherein, battery pack 1 is by two
The first modular battery 1a being connected in series and the second modular battery 1b compositions, and the first modular battery 1a and the second modular battery 1b
Serial interface be provided with series connection tap terminals；Signal processor 2 has the logical process function of voltage signal, its signal input part
Connect polling module 3 voltage signal output end, its three signal output parts connect respectively discharge module 5, charging module 6 and
The signal input part of display device；The power input of discharge module 5 connects the two ends of battery pack 1, the connection of its power output end
The discharge load 7 of battery pack；The power output end of charging module 6 connects the two ends of battery pack 1, and the connection of its power input is described
The external power source of electric car (represents logic control relation, Fig. 2 a do not indicate the charging module 6 of discharge module 5/ and battery pack to be clear
The connection at 1 two ends)；Three signal input parts of polling module 3 connect the first modular battery 1a and the second modular battery 1b respectively
The two ends being connected in series and series connection tap terminals.In the embodiment, display module 4 uses digital-scroll technique, and polling module 3 is by right
Two modular battery 1a/1b discharge voltage data carry out real-time inspection and data dynamic storage in signal processor 2 can
Store in reading, the voltage data discharged in real time by 4 Dynamic Announce of display device, two modular battery 1a/1b；Signal processor 2
Also two modular battery 1a/1b discharge voltage data is compared with interior storage data, when detecting any modular battery
When magnitude of voltage drops to the threshold values of interior storage setting, control discharge module 5 is terminated to battery power discharge；In the discharge process, signal
Processor also monitors and records the low modular battery data of discharge voltage value, for battery pack next time charging provide monitoring objective according to
According to, and setting value is risen to under the constant real-time voltage value of battery pack execution by charging voltage with the capacity lagging modular battery
Secondary charging operations.
In the present invention, described control panel can with the conventional management of charging and discharging system of electric car is discrete sets, also can be by
Its partial function or repertoire and described conventional management of charging and discharging System all-in-one Integration；Described discharge load 7 includes
Motor driven systems, control panel system and other use dc source device；The battery pack of described electric car or/and
Modular battery, including the secondary cell used that can arbitrarily charge repeatedly, such as lithium battery, lead battery, nickel-zinc cell and metal
Hydrogen storage battery；Described modular battery can be one of series/parallel inside cell or multiple cells
Body product, including modular battery group, modular battery group refer exclusively to more than two modular batteries internal or external series/parallel combinations
Connected mode, it can be considered the higher modular battery of external voltage.Described electric car, including one wheel more than using battery as
The power car of drive energy.
The internal structure of signal processor 2 generally comprises signaling interface, operating circuit and some function sub-modules, for example
Interior storage, timing, computing submodule, due to the development of large scale integrated circuit, the one of in the market a large amount of signal logic processing
Body IC-components, therefore in technical solutions according to the invention, the function that signal processor 2 needs only is illustrated, it is right
Inside modules structure is not limited in any way.The threshold values of storage setting, preferred module battery 1a/1b species in the signal processor 2
National technical standard or industry recommendation depending on, such as modular battery 1a/1b select nominal 12V lead accumulator, national skill
The electric discharge lower limit of art standard is 10.50V.
In the present invention, discharge module 5 has is controlled electric discharge and by the priority acccess control of signal processor 2 by electric car operation device
Function, it can also be provided that the priority acccess control interface circuit of electric car conventional discharge management system, i.e. discharge module 5 can be complete
Ground independent design, can also add the interface circuit of priority acccess control in electric car conventional discharge management system and be formed, including set
The logic power being connected in series with battery power discharge output end is set to switch.Priority acccess control of the discharge module 5 by signal processor 2
Method generally uses 0/1 digital control logic, and in one embodiment, discharge module 5 and battery power discharge management system are discrete
Set, discharge module 5 is the priority acccess control interface circuit of electric discharge management system, the priority acccess control interface circuit is controlled by signal
Manage 0/1 instruction that device 2 is exported, normal work when discharge module 5 receives " 1 " signal, the discharge module 5 when receiving " 0 " signal
Do not work.
Charging module 6, which has, receives function of the information command of signal processor 2 to the constant-potential charge of battery pack 1, and
Charging current monitors the function with constant current charge, and the control program of its constant-potential charge or the instruction of its constant pressure value are controlled by
The control program of signal processor 2, charging current monitoring and constant current charge is built in charging module 6；When charging module 6 connects
Receiving the constant-voltage charge priority acccess control program or constant-voltage charge information command that signal processor 2 sends, (signal processor 2 is by patrolling
What inspection module 3 monitored capacity lagging modular battery is risen to setting value by charging voltage, is floatingly selected by preset rules to battery pack 1
Charging constant pressure value), the operation of corresponding modified constant-voltage charge is performed to battery pack 1, and continue executing with the built-in perseverance imposed a condition
The constant-current charge some time.
Display device 4 is to provide information data outside control panel, for showing that each modular battery and battery pack 1 are dynamic
Store in the real-time discharge voltage value of state, the data using signal processor 2 can also stationary state show each modular battery and battery pack 1
Terminate the real-time voltage value of discharging time.In the foregoing embodiment as shown in Fig. 2 a/2b, display module 4 Dynamic Announce, two moulds
Block battery 1a/1b and battery pack 1 real-time discharge voltage value, are recorded using being store in the data of signal processor 2, can also stationary state
Show that two modular battery 1a/1b and battery pack 1 terminate the real-time voltage value of discharging time；Described termination electric discharge, including
Signal processor 2 sends signal control discharge module 5 and terminates the electric discharge to battery pack 1, and electric car under steam to battery
The manual control of group 1 terminates electric discharge, and electric car user is supervised by the voltage value data to display module 4, can understood in real time
Into battery pack, the voltage status of each modular battery, modular battery is changed beneficial to user in time.
The integrated circuit modules that market is exclusively used in voltage signal inspection are typically made up of A/D conversion chips plus microprocessor,
A/D conversion chips are responsible for the analog signal of voltage being converted to data signal, and microprocessor is controlled not in the same time to series electrical
Certain modular battery in the group of pond is sampled, and is compared by the sampling time, it is possible to accurately know the real-time electricity of certain modular battery
Pressure, using this kind of special polling module, the first modular battery 1a and the second module shown in Fig. 2 a can be just predicted from its output end
Battery 1b real-time voltage, general higher, the signal input part of precision of the integrated circuit modules of this kind of special inspection signal transacting
Also it is more, it is adaptable to the real-time voltage inspection of numerous modular batteries.When the signal input part for the signal processor 2 chosen is enough
Used time, the signal processing function of voltage polling can also be integrated in signal processor, the signal input part one of the voltage polling
As be designed as (n+1) road input channel, n is the modular battery number of elements in series battery, during work, inside signal processor
A/D transform subblocks are responsible for the analog signal of voltage being converted to data signal, and microprocessor is controlled not in the same time to battery
Certain modular battery in group is sampled, and the real-time voltage of certain modular battery more equally can be accurately known by the sampling time.
In a polling module 3 and the interface-embodiment of battery pack, examined in determination is electric for the 72V of low-speed electronic automobile
Pond group, the battery pack is composed in series by 6 12V lead accumulators, and its two ends adds 5 tap terminals totally 7 external signaling interfaces, respectively
Connect with 7 signal input parts of polling module, polling module selection A/D changes special chip, its signal output part and signal
The signal input part of processor connects, and A/D conversion special chips are responsible for the analog signal of voltage being converted to data signal, by believing
Number processor 2 controls the polling module not sampled in the same time to the modular battery in battery pack, passes through sampling time ratio
Compared with the real-time voltage of modular battery can be known.Real-time voltage of the polling module 3 except monitoring each modular battery in battery pack,
The voltage at battery pack two ends can also be monitored simultaneously.In the following drawings and explanation, no longer special sign polling module 3 is with connecting
The inspection schematic construction of modular battery in battery pack 1, the control panel schematic diagram of inspection structure shown in Fig. 2 a is reduced to Fig. 2 b institutes
Show.
Polling module 3, signal processor 2, the charging module 6 of discharge module 5 and the display dress of control panel of the present invention
Put 4 discrete to set, also alternative combination is set, and the above-mentioned function by voltage polling module 3, which is integrated in signal processor 2, is
One embodiment that selectivity combination is set, as shown in Figure 3；Similarly, the function of discharge module 5 and charging module 6 can also be shared
Integrated module is set, as shown in Figure 4 and Figure 5；Even can be by polling module 3, signal processor 2, discharge module 5, charging mould
The repertoire that block 6 includes display device 4 shares integrated module setting.The signal input part of display module 4 can also be connected and patrolled
Examine the signal output part of module 3, the connected mode can only Dynamic Announce battery pack and each modular battery real-time voltage value, such as
Shown in Fig. 6.
, should present invention also offers a kind of charge/discharge control method of the electric car control panel with display device
The threshold values that method drops to interior storage setting using the real-time discharge voltage value of any modular battery in battery pack discharges as termination
Foundation, and using the capacity lagging modular battery in battery pack by charging pressure condition as monitoring object, by signal transacting
Device control charging module performs the charging operations of flotation constant pressure value to whole group battery.Electric car with reference to shown in Fig. 2-6 is automatically controlled to be set
Standby, described charge/discharge control method specifically includes following steps：
Step 1) data routing inspection is carried out to the real-time discharge voltage of modules battery in battery pack 1 using polling module 3,
And utilize the Dynamic Announce modules battery of display device 4 or/and the real-time discharge voltage data of battery pack 1；
Step 2) by the receiving step 1 of signal processor 2) in the obtained corresponding voltage polling number of each modular battery of inspection
According to, and be compared described voltage polling data and the threshold values of storage setting in it by signal processor 2, work as signal processor
When 2 magnitudes of voltage for detecting any modular battery drop to the threshold values of interior storage setting, corresponding signal control discharge module 5 is sent eventually
Only the battery pack 1 is discharged；
Step 3) utilize signal processor 2 recording step 1) inspection obtains or step 2) terminate the discharging time of battery pack 1 and obtain
The data of the minimum capacity lagging modular battery of the discharge voltage value that arrives；
Step 4) by step 2) or step 3) signal record, monitor the capacity lagging mould using signal processor 2
Block battery next time charging voltage rise condition, when monitor the capacity lagging modular battery reached by charging voltage it is interior storage set
During fixed constant-voltage charge higher limit Vm/V, signal processor 2 is used as constant voltage using real-time voltage value of the battery pack 1 at the moment
Value, sends constant-voltage charge programme-control charging module 6 and battery pack 1 is charged, charging module 6 is under the charging current of battery pack 1
When being down to setting value, the termination of constant current charge some time is transformed to；Described constant current value 0.03-0.10C/A it
Between choose..
It is foregoing in existing conventional techniques, discharging control device is the lower voltage limit for monitoring battery of electric vehicle group two ends, is led
Cause the modular battery deep discharge of capacity lagging；And conventional charge control apparatus is on the voltage for monitor battery pack two ends when charging
Limit, causes the modular battery overcharge of capacity lagging；If being respectively filled with electricity to each modular battery, it can cause again in battery pack
The capacity of each modular battery is more unbalanced.The charge/discharge control method of control panel of the present invention, is by monitoring modules
The voltage status of battery, reaches lower limit as according to whole group battery discharge is terminated using the discharge voltage of any modular battery, prevents from holding
Measure backward modular battery deep discharge.Above-mentioned steps 3) capacity lagging modular battery data, including its discharge voltage value or
Its position memory in a power, the technical purpose of the data is recorded using signal processor 2, is for battery pack 1 next time
Charging provides monitoring objective foundation.
By above-mentioned steps 3) record, signal processor 2 is with capacity lagging mould when monitoring charging next time of battery pack 1
Block battery by charging pressure condition as foundation, risen to the Vm/V moment to determine charge to whole group battery by charging voltage with it
Constant pressure value, this constant pressure value storage in signal processor 2 is set according to the species of the modular battery；Such as 6 nominal 12V lead
The battery pack of battery series connection, the national standard recommendation of nominal 12V lead accumulators constant-voltage charge is 14.7V, when signal processor 2 is supervised
Measure when being risen to 14.7V by charging voltage of the capacity lagging modular battery, send with this moment whole group battery by it is substantial when electricity
Press the charging control program as constant pressure value to charging module 6, control is charged to whole group battery；Described flotation, refers to this
Constant pressure value to whole group battery real time charging is not fixed, constant pressure value being risen to by charging voltage by capacity lagging modular battery
Determined at the time of 14.7V, so as to prevent that capacity lagging modular battery from being overcharged；The design side to battery pack latter stage of charging
Method, is that one kind prevents battery pack overcharge and promotes each modular battery to tend to summarize the experience in a balanced way, constant current charge conversion
The electric current to decline setting value category preferred, chosen typically between 0.02-0.04C/A；The constant current charge it is " some
Time ", the current strength set by selection is filled with depending on 0.02-0.10C/Ah electricity to battery pack 1.
Following examples are only used for further illustrating technical scheme, and these technical schemes can be used alone,
It can add or combine and use other mature technologies.
Embodiment 1
A kind of control panel of four-wheel electric automobile is designed, the control panel includes：Polling module 3, signal processor 2,
Discharge module 5, charging module 6 and display device 4, wherein, the battery pack 1 that the supporting electric automobile is used is by 6 12V150Ah
The electrically coupled in series composition of lead accumulator, and the serial interface of 6 batteries is provided with series connection tap terminals, i.e., the 72V battery packs by its two
End adds 5 tap terminals totally 7 external signaling interfaces, is connected respectively with 7 signal input parts of polling module 3；Signal processor 2
Signal input part connect the signal output part of polling module 3, two signal output part is integrally connected the electric discharge of design respectively
The signal input part of module 5 and charging module 6；Display device 4 uses digital-scroll technique mode, its signal input part connection inspection mould
Another signal output part of block 3, the control logic structural representation of each functional module is as shown in Figure 6.
The power input of discharge module 5 connects the two ends of battery pack 1, and the electric discharge of its power output end connection battery pack is born
7 are carried, the discharge module 5 adds priority acccess control interface circuit by electric car conventional discharge management system and formed, and the priority acccess control connects
Mouthful circuit is controlled by 0/1 instruction of the output of signal processor 2, the normal work when receiving " 1 " signal of discharge module 5, when connecing
Do not worked when receiving " 0 " signal.The power output end of charging module 6 connects the two ends of battery pack 1, and the connection of its power input is described
The external power source of electric car, the charging module 6 is built-in with some charging procedures, and specific charging constant pressure value is controlled by signal processor
The command adapted thereto of 2 outputs.
When the control panel works, display device 4 shows each modular battery and battery pack 1 to control panel external dynamic
Real-time discharge voltage data；When the discharge voltage of 6 batteries is above 10.5V, signal processor 2 to control discharge module
5 send " 1 " signal, and discharge module 5 is controlled regular picture by artificial operation device；Polling module 3 passes through to 6 lead accumulators
Inspection obtains real-time discharge voltage data, and polling period is 3 seconds, the real-time discharge voltage for each battery that each inspection is obtained
Data send signal processor 2 to, are compared by signal processor 2 and the data of interior storage setting, when signal processor 2 is detected
When into 6 lead accumulators, the magnitude of voltage of any battery drops to the 10.5V of interior storage setting, by being sent out to control discharge module 5
Go out " 0 " signal and terminate the electric discharge to 72V battery packs.During the electric discharge observing and controlling, signal processor 2 is also in discharge process
Voltage is relatively minimum or termination discharging time reaches that 10.5V battery makes record first, and the record is with the position in power circuit
Confidence number is kept in the interior storage of signal processor 2, is used as the voltage monitoring target foundation to charging next time of battery pack 1.
Charging procedure is set as：Charging module 6 with 25A constant currents to the initiation of charge of battery pack 1, when signal processor 2
Monitor that voltage is relatively minimum in discharge process or discharge voltage reaches that the charging voltage of 10.5V battery rises to first
During 14.7V, preferential charging control program is sent to charging module 6, control charging module 6 fills this moment to whole group battery pack 1
The real-time voltage of electricity is charged as constant voltage values with the constant magnitude of voltage, limitation 25A current versus cells group 1, and the mould that charges
Block 6 when charging current drops to 3.00A naturally, be transformed to battery pack 1 not voltage limit constant current 10A charge 15 minutes
Terminate.
The control panel of the present embodiment is by display device 4 to each modular battery of outside Dynamic Announce and battery pack 1
Real-time discharge voltage value, makes user be directly acquainted with the modular battery state of batteries of electric automobile group, easily knows in Support
Not, the battery of capacity lagging is changed, is conducive to extending the service life of battery pack.
Embodiment 2
The signal input part of display module 4 described in embodiment 1 is changed into the signal output part that connection signal processor 2 is set up,
As shown in Figure 4.Programmed by the interior storage of signal processor 2, except 6 batteries in the control Dynamic Announce battery pack of display module 4
Outside real-time discharge voltage value, it is also set to：When discharge module 5 is terminated to battery power discharge, the stationary state of display module 4 shows 6
Battery is terminating the magnitude of voltage of discharging time, and it is whole that the magnitude of voltage sends " 0 " signal control discharge module 5 including signal processor 2
Only electric discharge (voltage of one battery of wherein at least drops to the 10.5V of storage setting in signal processor 2), and signal processor
2 send two kinds of situations that " 1 " signal condition but the electric automobile conventional manual manipulation termination battery pack 1 of discharge module 5 are discharged, and make electricity
Electrical automobile user is very clear to the capacity lagging battery in battery pack.
It should be noted last that, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted.Although ginseng
The present invention is described in detail according to embodiment, it will be understood by those within the art that, to the technical side of the present invention
Case is modified or equivalent substitution, and without departure from the spirit and scope of technical solution of the present invention, it all should cover in the present invention
Right among.
Claims (7)
1. a kind of electric car control panel with display device, it is characterised in that including signal processor (2), polling module
(3), discharge module (5) charging module (6) and display device (4), the signal input part connection of the signal processor (2) are described
The signal output part of polling module (3), its signal output part connects the letter of the discharge module (5) and charging module (6) respectively
Number input；The display device (4) is used to provide information for the outside of the electric car control panel；The discharge module
(5) power input connects the two ends of the battery pack (1) of the electric car, and the electric discharge of its power output end connection battery pack is born
Carry (7)；The two ends of the power output end connection battery pack (1) of the charging module (6), its power input connection is described electronic
The external power source of car；It is each in the two ends of the signal input part connection battery pack (1) of polling module (3) and battery pack (1)
The series connection tap terminals of modular battery；Described electric car control panel is dropped to the discharge voltage of any modular battery to be set
Setting control discharge module (5), which is terminated, to discharge battery pack (1), and is risen to and set by charging voltage with capacity lagging modular battery
Definite value performs the next charging operations of constant real-time voltage value to battery pack (1).
2. the electric car control panel according to claim 1 with display device, it is characterised in that described to battery pack
(1) control program for performing constant voltage charging operation is built in described signal processor (2).
3. the electric car control panel according to claim 1 with display device, it is characterised in that the display device
(4) signal input part is connected with the signal output part of signal processor (2) or polling module (3).
4. the electric car control panel according to claim 3 with display device, it is characterised in that the display module
(4) display mode includes：Digital-scroll technique, aspect, text importing and auditory tone cues.
5. the electric car control panel according to claim 1 with display device, it is characterised in that the signal transacting
Discrete setting or selective group between device (2), polling module (3), discharge module (5), charging module (6) and display device (4)
Close and set, or shared integrated module is set.
6., should based on the charge/discharge control method of any electric car control panel with display device of Claims 1 to 5
Method includes：
Step 1) data routing inspection is carried out to the real-time discharge voltage of modules battery in battery pack (1) using polling module (3),
And utilize display device (4) Dynamic Announce modules battery or/and the real-time discharge voltage data of battery pack (1)；
Step 2) by signal processor (2) receiving step 1) in the obtained corresponding voltage polling number of each modular battery of inspection
According to, and be compared described voltage polling data and the threshold values of storage setting in it by signal processor (2), work as signal transacting
When the magnitude of voltage that device (2) detects any modular battery drops to the threshold values of interior storage setting, corresponding signal control electric discharge mould is sent
Block (5), which is terminated, to discharge the battery pack (1)；
Step 3) utilize signal processor (2) recording step 1) inspection obtains or step 2) terminate battery pack (1) discharging time and obtain
The data of the minimum capacity lagging modular battery of the discharge voltage value that arrives；
Step 4) by step 2) or step 3) signal record, utilize signal processor (2) to monitor the capacity lagging module
Battery next time charging voltage rise condition, when monitor the capacity lagging modular battery reached by charging voltage it is interior storage setting
Constant-voltage charge higher limit Vm/V when, signal processor (2) is used as constant electricity using real-time voltage value of the battery pack (1) at the moment
Pressure value, sends constant-voltage charge programme-control charging module (6) and battery pack (1) is charged, charging module (6) is to battery pack (1)
When charging current drops to setting value, the termination of constant current charge some time is transformed to；Described constant current value is in 0.03-
Chosen between 0.10C/A.
7. having the charge/discharge control method of the electric car control panel of display device according to claim 6, its feature exists
In described step 2) or step 3) also include：When termination is discharged battery pack (1), using signal processor (2) record simultaneously
Store the modules battery and terminating the real-time voltage data of discharging time, and institute is shown by display device (4) stationary state
State the real-time voltage data of modules battery.
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| CN201710568365.8A CN107284275A (en) | 2017-07-13 | 2017-07-13 | Electric car control panel and its charge/discharge control method with display device |
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| CN201710568365.8A CN107284275A (en) | 2017-07-13 | 2017-07-13 | Electric car control panel and its charge/discharge control method with display device |
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