CN107284285A - Electric control system of electric vehicle and its charge/discharge control method with interconnected communication - Google Patents
Electric control system of electric vehicle and its charge/discharge control method with interconnected communication Download PDFInfo
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- CN107284285A CN107284285A CN201710630869.8A CN201710630869A CN107284285A CN 107284285 A CN107284285 A CN 107284285A CN 201710630869 A CN201710630869 A CN 201710630869A CN 107284285 A CN107284285 A CN 107284285A
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- 238000007599 discharging Methods 0.000 claims description 11
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Classifications
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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
- B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
- B60L58/22—Balancing the charge of battery modules
-
- 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
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
-
- 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
- B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
- B60L58/21—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having the same nominal voltage
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
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- H02J7/0026—
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- 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
-
- 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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
-
- 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Chemical & Material Sciences (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention provides a kind of electric control system of electric vehicle and its charge/discharge control method with interconnected communication, described electric-control system includes polling module, signal processor, discharge module, charging module, communication module and control device；The signal input part of signal processor connects polling module and the signal output part of communication module respectively, and its signal output part connects the signal input part of discharge module, charging module and communication module respectively；The signal input part connection battery pack two ends of polling module and its series connection tap terminals of each modular battery；It can realize that the long-range information data to the modular battery is handled by the interconnected communication with this electric-control system and charge/discharge control method, and signal acquisition, processing are carried out to the real-time voltage of modular battery, 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 power supply design field of electric car, more particularly to a kind of electric car electricity with interconnected communication
Control system and its charge/discharge control method.
Background technology
Power battery pack and its charge and discharge control are one of technical bottlenecks of electric automobile, the object of conventional management of charging and discharging
It is control battery pack both end voltage, the modular battery deep discharge of capacity lagging in battery pack can be caused during electric discharge, meeting again during charging
It is led to that the modular battery of capacity lagging is overcharged and accelerates capacity attenuation；Also technical scheme proposes charging voltage managing object
Control is to modular battery, although in fact, this technical scheme charged for modular battery can be filled each modular battery
It is full, but because the modular battery capacity in battery pack is unbalanced, the modular battery of capacity lagging can be led in electric discharge next time
Occur the electric discharge of more depth, the life-span is terminated in advance.
Why power battery pack is difficult to reach projected life in practicality, and most common technical problem is the failure to timely hair
The modular battery of capacity lagging in existing battery pack, the modular battery is often referred to A-battery group, such as the lead of many lattice disjunctors stores
Battery, and monomer had internally not only been connected but also lithium battery pack in parallel.In the comercial operation management of electric car, manager is also past
Toward wishing that Charge Management link is controlled by the control device outside electric car, pass through the control management extension battery of control device
Service life, therefore, industry is wished to seek to the capacity lagging modular battery in a kind of energy remote discovery battery of electric vehicle group, prevented
Only capacity lagging modular battery is by deep discharge and is overcharged and Charge Management link is controlled by the technical side of control device
Case, the cost that reduction battery of electric vehicle is used.
The content of the invention
It is an object of the present invention to which the technological deficiency existed for the conventional management of charging and discharging of electric car series battery, is carried
It is controlled by the electric-control system of control device outside electric car for a kind of Charge Management link, the electric-control system can by interconnected communication
Capacity lagging modular battery in remote discovery battery pack, with preventing capacity lagging modular battery by deep discharge and overcharged
The control function of electricity, can extend the service life of battery of electric vehicle group.
To realize above-mentioned technical purpose, the invention provides a kind of electric control system of electric vehicle with interconnected communication, this is
System includes：Polling module, signal processor, charging module, discharge module, communication module and control device；At described signal
Manage device at least include voltage signal comparing function and logical process function, its signal input part connect respectively the polling module and
The signal output part of communication module, its signal output part connects the letter of the discharge module, charging module and communication module respectively
Number input；The power input of the discharge module connects the battery pack two ends of the electric car, the connection of its power output end
Discharge load；The power output end connection battery pack two ends of the charging module, its power input connects the outside of electric car
Power supply；The signal input part connection battery pack two ends of the polling module and the series connection tap terminals of each modular battery；The electricity
Motor-car electric-control system realizes the information data processing to the modular battery by the interconnected communication, and with any module
The voltage of battery drops to setting value and terminated to battery power discharge, and control performs next charging operations to battery pack.
In the present invention, the battery pack that the electric control system of electric vehicle with interconnected communication 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；Described communication
Module is the transmitting terminal to control device remote transmission data, while being the long-range reception for obtaining the instruction of control device coherent signal
End；The control device being arranged on outside electric car for obtain communication module remote transmission data receiving terminal, while for
The communication module sends the remote transmission end of coherent signal instruction.
In above-mentioned technical proposal, the automatically controlled program that next charging operations are performed to battery pack is built in charging module,
The charging constant pressure value of charging module is controlled by the signal instruction of the signal processor.
In above-mentioned technical proposal, described interconnected communication includes the remote radio communication net and arbitrary form of any wave band
Information interconnected network, LAN.
In above-mentioned technical proposal, the polling module of the electric control system of electric vehicle, signal processor, discharge module, charging
Discrete setting or selectivity combination are set between module and communication module or shared integrated module is set.
Based on the above-mentioned electric control system of electric vehicle with interconnected communication, present invention also offers a kind of electric car is automatically controlled
The charge/discharge control method of system, this method includes：
Step 1) data are carried out to the modules battery or/and the real-time discharge voltage of battery pack using polling module
Inspection；
Step 2) by step 1) the obtained data of inspection, using communication module the data to described middle control
Equipment real time remote is transmitted, and is compared the data with storage setting value in it by signal processor, any when detecting
When the voltage of the modular battery drops to interior storage setting value, send corresponding signal control discharge module and terminate to the battery pack
Electric discharge；
Step 3) by described control device record and storage steps 1) inspection obtains or step 2) battery pack is whole
The data of the minimum capacity lagging modular battery of magnitude of voltage that only discharging time is obtained；
Step 4) communication module is utilized to the described long-range obtaining step 3 of control device) the capacity lagging modular battery
Coherent signal instruction.
Step 5) using signal processor according to step 4) described in signal instruction monitor the capacity lagging modular battery
By charging voltage, when the voltage for monitoring the capacity lagging modular battery rises to the constant-voltage charge higher limit of interior storage setting
During Vm/V, send corresponding signal and control the real-time voltage that charging module was charged to the battery pack using the moment as constant pressure value,
When charging module drops to built-in setting value to the electric current that battery pack charges with the constant pressure value, if being transformed to constant current charge
The dry time terminates；Described constant current value is chosen between 0.02-0.1C/A.
In above-mentioned technical proposal, described step 2) or step 3) also include：Using communication module to the control device
Remote transmission modules battery is terminating the real-time voltage data of discharging time.
In above-mentioned technical proposal, the step 5) the constant-voltage charge higher limit Vm/V of setting, root are store in signal processor
Determined according to the modular battery species of the battery pack, the described preferred national technical standards of constant-voltage charge higher limit Vm/V or industry
To the recommendation of the kind of module battery.
A kind of electric control system of electric vehicle and its charge/discharge control method advantage with interconnected communication of the present invention is：
The modular battery discharge condition reflected in real time in battery pack with the electric control system of electric vehicle of the present invention, to battery pack
The real-time voltage state of middle modules battery carries out signal acquisition, processing, and control capability falls behind modular battery not by deep discharge,
And realize that the link that charged to battery pack is controlled by the control device being arranged on outside electric car, make described mould
Block battery is not overcharged, so as to effectively extend the service life of battery pack.
Brief description of the drawings
Fig. 1 is signal monitoring structural representation of the conventional electric car electric-control system to battery pack.
Fig. 2 a are signal monitoring control structure schematic diagram of the electric control system of electric vehicle to battery pack in the present invention.
Fig. 2 b are the structure rough schematic views of the electric control system of electric vehicle shown in Fig. 2 a.
Fig. 3 is that signal processor combines the electric control system of electric vehicle logic control constructs schematic diagram set with polling module.
Fig. 4 is that charging module combines the electric control system of electric vehicle 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 electronic of setting with polling module
Car electric-control system logic control constructs schematic diagram.
Accompanying drawing is identified：
1st, battery pack 1a, the first modular battery 1b, the second modular battery
2nd, signal processor 3, polling module 4, control device
5th, discharge module 6, charging module 7, discharge load
8th, communication module 9, conventional discharge management system 10, normal charge management system
Embodiment
With reference to the accompanying drawings and examples further to a kind of electric control system of electric vehicle with interconnected communication of the invention
And its charge/discharge control method is described in detail.
Fig. 1 is one and constitutes most simply stating for battery of electric vehicle group by the first modular battery 1a and the second modular battery 1b
Example, is for voltage signal monitoring using the two ends of two modular battery 1a/1b series connection in Fig. 1 examples, the characteristics of charge and discharge control
Object, conventional discharge management system 9 is all connected with the two ends of battery pack, this simple controlling party with normal charge management system 10
Method and the untrue actual discharge voltage for predicting two modular battery 1a/1b, when two modular batteries are unbalanced, necessarily there is it
In modular battery occur deep discharge.
Referring to shown in Fig. 2 a, in one embodiment of the electric control system of electric vehicle with interconnected communication of the invention provided
In, electric control system of electric vehicle includes：Polling module 3, signal processor 2, discharge module 5, charging module 6, communication module 8 and in
Equipment 4 is controlled, wherein, the first modular battery 1a and the second modular battery 1b that battery pack 1 is connected in series by two are constituted, and module
Battery 1a/1b serial interface is provided with tap terminals；Signal processor 2 has the logical process function of voltage signal, one
Signal input part connects the voltage signal output end of polling module 3, and the signal of another signal input part connection communication module 8 is defeated
Go out end, its three signal output parts connect the signal input part of discharge module 5, charging module 6 and communication module respectively；Electric discharge
The power input of module 5 connects the two ends of battery pack 1, and its power output end connects the discharge load 7 of battery pack 1；Charge mould
The power output end of block 6 connects the two ends of battery pack 1, and the external charging power supply of its power input connection battery pack 1 (is clear
Logic control relation is represented, Fig. 2 a do not indicate the charging module 6 of discharge module 5/ and the connection at the two ends of battery pack 1)；Polling module 3
Three signal input parts two ends that link block battery 1a/1b is connected in series respectively and tap terminals.In the embodiment, inspection
Module 3 carries out real-time inspection by the discharge voltage data to modular battery 1a/1b, by communication module 8 two module electricity
The real-time discharge voltage data in pond is transferred to control device 4 by interconnected communication real time remote, and by signal processor 2 and interior storage
Data are compared, and when the voltage for detecting any modular battery in modular battery 1a/1b drops to interior storage setting value, are sent
Signal control discharge module 5, which is terminated, to discharge battery pack 1；When being charged to battery pack 1, control device 4 is by the module recorded
The data of discharge voltage relatively low (capacity lagging) are by the interconnected communication remote transmission to communication module 8 in battery 1a/1b
Under being performed after battery pack charging next time offer monitoring objective foundation, the related signal instruction of signal processor acquisition to battery pack 1
Secondary charging operations.
In the present invention, the discrete setting of conventional management of charging and discharging system that described electric control system of electric vehicle can be with electric car,
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 include 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 that series/parallel is formed inside cell or multiple cells
Integral structure product, the latter can be considered the higher modular battery of external voltage.It is more than described electric car, including a wheel
The power car using battery as 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.Storage setting value, the state of preferred module battery 1a/1b species in the signal processor 2
Depending on family's technical standard or industry recommendation, such as, when modular battery 1a/1b selects nominal 12V lead accumulator, national standard is recommended
Electric discharge lower limit be 10.50V.
Discharge module 5 has is controlled electric discharge and by the function of the priority acccess control of signal processor 2 by electric car operation device,
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 intactly independent
Design, can also electric car conventional discharge management system add priority acccess control interface circuit and be formed, including be set to
The logic power switch that battery power discharge output end is connected in series.The power supply output form of discharge module 5 is any, including direct current
Electricity, inversion are that regular alternating current electricity and the waveform of electric current, frequency are any.Priority acccess control side of the discharge module 5 by signal processor 2
Method generally uses 0/1 digital control logic, in one embodiment, discharge module 5 with battery power discharge management system is discrete sets
Put, discharge module 5 is the priority acccess control interface circuit of electric discharge management system, the interface circuit is controlled by signal processor 2 and exported
0/1 instruction, normal work when discharge module 5 receives " 1 " signal, when receive " 0 " signal when discharge module 5 do not work.
Charging module 6 has to the function of the constant-potential charge of battery pack 1, and to the monitoring of the charging current of battery pack 1 and
The function of constant current charge, the instruction of its constant voltage values charging is controlled by signal processor 2, and charging current is monitored and constant
The control program of electric current charging is built in charging module 6；When charging module 6 receives the constant pressure instruction that signal processor 2 is sent
(signal processor 2 is risen to setting value by what polling module 3 monitored capacity lagging modular battery by charging voltage), to battery
Group 1 performs corresponding constant voltage charging operation, and continues executing with the constant current charge some time of built-in setting.Charging module 6
Can independent design, the constant pressure value that can be charged by the priority acccess control of signal processor 2 also can be added in normal charge management system and being patrolled
Collect interface and formed.
Polling module 3 can be independently arranged, and its inspection function can be also integrated in signal processor 2.Market is exclusively used in electricity
Press the integrated circuit modules of signal inspection are general to add microprocessor to constitute by A/D conversion special chips, A/D conversion special chips are born
The analog signal of voltage is converted to data signal by duty, and microprocessor is controlled not in the same time to certain module in series battery
Battery is sampled, and is compared by the sampling time, it is possible to accurately know the real-time voltage of certain modular battery, using this kind of special
Polling module, the real-time electricity of the first modular battery 1a and the second modular battery 1b shown in Fig. 2 a can be just predicted from its output end
Pressure, the precision of the integrated circuit modules of this kind of special inspection signal transacting is general higher, and signal input part is also more, it is adaptable to many
The real-time voltage inspection of multimode battery., can also be by electricity when the signal input part enough used times for the signal processor 2 chosen
The signal processing function of pressure inspection is integrated in signal processor, and the signal input part of the voltage polling is typically designed as (n+1) road
Input channel, n is the modular battery number of elements in series battery, during work, and the A/D transform subblocks inside signal processor are born
The analog signal of voltage is converted to data signal by duty, and microprocessor is controlled not in the same time to certain modular battery in battery pack
Sampled, the real-time voltage of certain modular battery is more equally would know that 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 series battery, during by sampling
Between compare, the real-time voltage of modular battery can be known.Real-time discharge voltage of the polling module 3 except monitoring each modular battery,
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 and series electrical
The inspection schematic construction of modular battery in pond group 1, the electric control system of electric vehicle schematic diagram of inspection structure shown in Fig. 2 a is reduced to figure
Shown in 2b.
Communication module 8 is to handle the Information Number of the modular battery to be realized with control device 4 by the interconnected communication
According to signal processor 2 and control device 4 are provided with the submodule store in data.The letter of the electric control system of electric vehicle processing
Data are ceased, including communication module 8 is to each modular battery discharge voltage data of the remote transmission of control device 4, such as it is described above
First modular battery 1a and the second modular battery 1b real-time/termination discharge voltage value, and real-time/termination of battery pack are discharged
Magnitude of voltage；Described termination electric discharge, including signal processor 2 send signal control discharge module 5 and terminate putting to battery pack 1
Electricity, and termination of the discharge load 7 to battery pack 1 in conventional operation are discharged.Set by being arranged on the middle control outside electric car
Standby 4 contact with the interconnected communication of the communication module 8, can grasp the real-time discharge condition of each modular battery, be easy in electric car
Operation process grasps the state of battery pack at any time, detects, changes the modular battery of capacity lagging exactly in maintenance.
Control device 4 is provided with the submodule of storage in data, the work(except transmitting data with reception communication module 8
Can, also with the function that signal instruction is transmitted to communication module 8, the signal instruction transmitted to communication module 8, including to hold
Amount falls behind the signal instruction that modular battery discharge voltage data edits conversion for foundation, or with capacity lagging modular battery in electricity
Position memory in the group power circuit of pond；Communication module 8 remotely obtains the signal by the interconnected communication to control device 4
After instruction, instantaneous transmission is to signal processor 2, so as to provide voltage monitoring target for charging next time of battery pack 1.This is by letter mould
Block 8 transmitted to control device 4 the capacity lagging modular battery discharge voltage data, in turn from letter module 8 to it is middle control set
Standby 4 obtain the Functional Design of the signal instruction, are for the charging with described control device 4 to battery of electric vehicle group 1
Link is managed control.
In electric control system of electric vehicle of the present invention with interconnected communication, described polling module 3, signal processor
2nd, the charging module 6 of discharge module 5 and communication module 8 discrete can be set, and also alternative combination is set, above-mentioned by voltage polling mould
It is one embodiment that selectivity combination is set that the function of block 3, which is integrated in signal processor 2, as shown in Figure 3；Similarly, discharge mould
The function of block 5 and charging module 6 can also share integrated module setting, as shown in Figure 4 and Figure 5；Even can by polling module 3,
The repertoire that signal processor 2, discharge module 5, charging module 6 include communication module 8 shares integrated module setting.
Present invention also offers a kind of charge/discharge control method of the electric control system of electric vehicle with interconnected communication, this method
The discharge voltage data of modules battery or/and battery pack 1 is handled by interconnected communication, and with any in battery pack
The discharge voltage of modular battery drops to setting value as the foundation for terminating electric discharge, is fed back by the signal instruction of control device 4,
Using the capacity lagging modular battery in battery pack by charging pressure condition as monitoring object, by signal processor control charging mould
Block performs the charging operations of flotation constant pressure value to whole group battery.Electric control system of electric vehicle with reference to shown in Fig. 2-5, described charge and discharge
Electric control method specifically includes following steps：
Step 1) enter line number using the real-time discharge voltage of 3 pairs of modules batteries of polling module or/and battery pack 1
According to inspection；
Step 2) by step 1) the obtained data of inspection, using communication module 8 the data in described
The transmission of equipment 4 real time remote is controlled, and is compared by signal processor 2 by setting value is store in the data and its, when detecting
When the voltage of any modular battery drops to interior storage setting value, send corresponding signal control discharge module 5 and terminate to described
Battery pack 1 is discharged；
Step 3) by the described record of control device 4 and storage steps 1) inspection obtains or step 2) battery pack 1
Terminate the data of the minimum capacity lagging modular battery of the obtained magnitude of voltage of discharging time；
Step 4) communication module 8 is utilized to the described long-range obtaining step 3 of control device 4) the capacity lagging module electricity
The coherent signal instruction in pond.
Step 5) using signal processor 2 according to step 4) described in signal instruction monitor the capacity lagging modular battery
By charging voltage, when the voltage for monitoring the capacity lagging modular battery rises to the constant-voltage charge higher limit of interior storage setting
During Vm/V, send corresponding signal control charging module 6 and constant pressure is used as to the real-time voltage that the battery pack 1 charges using the moment
Value, when charging module 6 drops to built-in setting value to the electric current that battery pack 1 charges with the constant pressure value, is transformed to constant current
The charging some time terminates；Described constant current value is chosen between 0.02-0.1C/A.
It is foregoing in existing conventional techniques, charge and discharge control equipment is the voltage for monitoring battery of electric vehicle group two ends, can be led
Cause modular battery deep discharge and the overcharge of capacity lagging；If being respectively filled with electricity to each modular battery, electricity can be caused again
The capacity of each modular batteries of Chi Zuzhong is more unbalanced.The charge/discharge control method of the present invention, is with capacity lagging modular battery
Discharge voltage reach lower limit be according to terminate to whole group battery discharge, prevent the modular battery deep discharge of capacity lagging, it is described
With step 3) data draw step 4) described in coherent signal instruction, including using capacity lagging modular battery discharge voltage as according to
According to and edit the signal instruction of conversion, or position memory of the capacity lagging modular battery in battery power circuit, at signal
The purpose that device 2 obtains coherent signal instruction using communication module 8 to control device 4 is managed, is to provide electricity for charging next time of battery pack 1
The target foundation of monitoring is pressed, while being carried out using the control device 4 of the electric control system of electric vehicle to the charging link of battery pack
Management control.
By above-mentioned step 3) and step 4), being risen to by charging voltage with capacity lagging modular battery of being charged in next time
The Vm/V moment determines the constant pressure value charged to whole group battery, and this constant pressure value is according to the species of the modular battery by signal
Manage storage setting flotation logic in device 2.For example in the battery pack for 6 nominal 12V lead accumulators series connection that low-speed electronic car is commonly used,
The national standard recommendation of nominal 12V lead accumulator constant-voltage charges is 14.7V, when signal processor 2 monitors the capacity lagging module
When being risen to 14.7V by charging voltage of battery, send signal control charging module 6 this moment whole group battery is charged it is real-time
Voltage is used as constant pressure value；Described flotation, refers to that the constant pressure value of this pair of whole group batteries charging is not fixed, the constant pressure value be by
The charging voltage of the capacity lagging modular battery is determined at the time of rising to 14.7V, so as to prevent the module electricity of capacity lagging
Pond is overcharged.
Step 5) charging module 6 is transformed to not limit the constant current of voltage to battery pack 1 in constant-voltage charge latter stage
The terminating method of charging some time, is that one kind promotes each modular battery to tend to industry experience summary, the constant electricity in a balanced way
The electric current of current charge conversion declines setting value category preferably, is chosen typically between 0.02-0.04C/A, described " some time "
Battery pack 1 is filled with depending on 0.02-0.10C/Ah electricity by the current strength set.
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
Design a kind of electric control system of electric vehicle of four-wheel electric automobile, the electric control system of electric vehicle include polling module 3,
Signal processor 2, discharge module 5, charging module 6, communication module 8 and control device 4, wherein, the supporting electric automobile is used
Battery pack 1 by 6 12V150Ah lead accumulator it is electrically coupled in series constitute, and the serial interface of 6 batteries is provided with series connection tap
End, i.e., the 72V battery packs add 5 tap terminals totally 7 external signaling interfaces by its two ends, respectively with 7 signals of polling module 3
Input is connected；Signal processor 2 has voltage signal comparing function and logical process function, the connection of one signal input part
The signal output part of polling module 3, another signal input part connects the signal output part of control device 4, and its three signals are defeated
The signal for going out signal input part, the signal input part of charging module 6 and communication module 8 that end connects discharge module 5 respectively is defeated
Enter end, the control logic structural representation of each functional module is as shown in Figure 2 a.
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 electric control system of electric vehicle works, signal processor 2 sends " 1 " signal, discharge module to control discharge module 5
5 are controlled regular picture by the artificial operation device of electric car；Polling module 3 is obtained by the inspection to 6 lead accumulators and put in real time
Piezoelectric voltage data, polling period is 3 seconds；Meanwhile, the real-time discharge voltage for each battery that polling module 3 obtains each inspection
Data send signal processor 2 to, and the real-time discharge voltage data of 6 modular batteries and battery pack 1 is led to by communication module 8
Cross interconnected communication real time remote and be transferred to control device 4, and be compared by signal processor 2 and the data of interior storage setting, when
When the voltage that signal processor 2 detects any battery in 6 lead accumulators drops to the 10.5V of interior storage setting, by control
Discharge module 5 processed sends " 0 " signal and terminates the electric discharge to 72V battery packs.In the electric discharge observing and controlling, signal processor 2 is also to putting
Electric real-time voltage is relatively minimum or termination discharging time reaches that 10.5V battery makes record first, and the record is existed with the battery
Position signalling mode in the power circuit of battery pack 1, from communication module 8 by interconnected communication to the teletransmission of control device 4, and
Kept in being provided with control device 4 that submodule is store in data, as the voltage monitoring target to charging next time of battery pack 1 according to
According to the interconnected communication uses the remote radio communication net of any wave band；When starting charging next time to battery pack 1, by communicating
Module 8 remotely obtains position signalling of the battery in the power circuit of battery pack 1 by interconnected communication to control device 4, by this
Signal sends the charging procedure that signal processor 2 performs setting to.
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, control signal is sent to charging module 6, at the time of charging module 6 receives instruction, this moment is filled to battery pack 1
The real-time voltage of electricity continues to charge as constant voltage values with the constant real-time voltage value, limitation 25A current versus cells group 1, when
When the charging current of battery pack 1 drops to 3.00A naturally, it is transformed to constant current 7.50A and does not limit voltage charging 15 minutes certainly
It is dynamic to terminate.
Family can be used to grasp the real-time voltage value of each battery discharge in battery pack in real time for the present embodiment, be easy to described four
The battery of wheel electric automobile accurate detection capacity lagging when safeguarding, reduces the turnover rate of battery pack.
Embodiment 2
In the present embodiment, the discharge module 5 and charging module 6 of embodiment 1 are carried out into integrated design, with reference to shown in Fig. 4
Electric control system of electric vehicle structure.
In embodiment 1, communication module 8 be the real-time discharge voltage data of 6 modular batteries and battery pack 1 is passed through it is mutual
UNICOM believes remote transmission to control device 4, and the present embodiment is further configured to the interior storage programming of signal processor 2：Work as electric discharge
When module 5 is terminated to battery power discharge, control communication module 8 transmits 6 electricity by interconnected communication to the real time remote of control device 4
Pond terminate discharging time magnitude of voltage, the magnitude of voltage include signal processor 2 send " 0 " signal control discharge module 5 terminate
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
The two kinds of situations discharged in " 1 " signal condition but the electric automobile conventional manual manipulation termination battery pack 1 of discharge module 5.This reality
Apply example and family can be used by interconnected communication, to a discharge condition data more mesh for 6 batteries of the battery of electric vehicle group 1
So.
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 (6)
1. a kind of electric control system of electric vehicle with interconnected communication, it is characterised in that including polling module（3）, signal processor
（2）, discharge module（5）Charging module（6）, communication module（8）And control device（4）, the signal processor（2）Signal it is defeated
Enter end and connect the polling module respectively（3）And communication module（8）Signal output part, its signal output part connects described respectively
Discharge module（5）, charging module（6）And communication module（8）Signal input part；The discharge module（5）Power input
Connect the battery pack of the electric car（1）Two ends, its power output end connection discharge load（7）；The charging module（6）Electricity
Source output terminal connects battery pack（1）Two ends, its power input connects the external power source of electric car；The polling module（3）'s
Signal input part connects battery pack（1）Two ends and the series connection tap terminals of each modular battery；The electric control system of electric vehicle passes through
The interconnected communication, which is realized, to be handled the information data of the modular battery, and drops to setting with the voltage of any modular battery
Value is terminated to battery pack（1）Electric discharge, is controlled to battery pack（1）Perform next charging operations.
2. the electric control system of electric vehicle according to claim 1 with interconnected communication, it is characterised in that described to battery pack
（1）The automatically controlled program for performing next charging operations is built in charging module（6）, charging module（6）Charging constant pressure value be controlled by
The signal processor（2）Signal instruction.
3. the electric control system of electric vehicle according to claim 1 with interconnected communication, it is characterised in that described mutual UNICOM
Letter includes the remote radio communication net and any form of information interconnected network, LAN of any wave band.
4. the electric control system of electric vehicle according to claim 1 with interconnected communication, it is characterised in that the polling module
（3）, signal processor（2）, discharge module（5）, charging module（6）And communication module（8）Between discrete setting or selective group
Close and set, or shared integrated module is set.
5., should based on the charge/discharge control method of any electric control system of electric vehicle with interconnected communication of Claims 1 to 4
Method includes：
Step 1）Utilize polling module（3）To the modules battery or/and battery pack（1）Real-time discharge voltage enter line number
According to inspection；
Step 2）By step 1）The data that inspection is obtained, utilize communication module（8）The data to described middle control
Equipment（4）Real time remote is transmitted, and by signal processor（2）The data are compared with storage setting value in it, work as detection
To any modular battery voltage drop to it is interior storage setting value when, send corresponding signal control discharge module（5）Termination pair
The battery pack（1）Electric discharge；
Step 3）Pass through described control device（4）Record and storage steps 1）Inspection is obtained or step 2）The battery pack（1）
Terminate the data of the minimum capacity lagging modular battery of the obtained magnitude of voltage of discharging time；
Step 4）Utilize communication module（8）To described control device（4）Long-range obtaining step 3）The capacity lagging module electricity
The coherent signal instruction in pond；
Step 5）Utilize signal processor（2）According to step 4）Described signal instruction monitors the capacity lagging modular battery
By charging voltage, when the voltage for monitoring the capacity lagging modular battery rises to the constant-voltage charge higher limit Vm/V of interior storage setting
When, send corresponding signal control charging module（6）With the moment to the battery pack（1）The real-time voltage of charging is used as constant pressure
Value, charging module（6）With the constant pressure value to battery pack（1）When the electric current of charging drops to built-in setting value, it is transformed to constant
The electric current charging some time terminates；Described constant current value is chosen between 0.02-0.1C/A.
6. having the charge/discharge control method of the electric control system of electric vehicle of interconnected communication according to claim 5, its feature exists
In described step 2）Or step 3）Also include：Utilize communication module（8）To the control device（4）Each mould of remote transmission
Block battery is terminating the real-time voltage data of discharging time.
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| CN201710630869.8A CN107284285A (en) | 2017-07-28 | 2017-07-28 | Electric control system of electric vehicle and its charge/discharge control method with interconnected communication |
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| CN201710630869.8A CN107284285A (en) | 2017-07-28 | 2017-07-28 | Electric control system of electric vehicle and its charge/discharge control method with interconnected communication |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110474113A (en) * | 2019-07-05 | 2019-11-19 | 深圳市普禄科智能检测设备有限公司 | Electronic cell device |
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| CN1294993A (en) * | 1999-10-25 | 2001-05-16 | 雅马哈发动机株式会社 | Dual-purpose power supply device for electric motor car |
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