CN104467098A - Charging control system and method for electromobile - Google Patents
Charging control system and method for electromobile Download PDFInfo
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- CN104467098A CN104467098A CN201410765773.9A CN201410765773A CN104467098A CN 104467098 A CN104467098 A CN 104467098A CN 201410765773 A CN201410765773 A CN 201410765773A CN 104467098 A CN104467098 A CN 104467098A
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- Prior art keywords
- charge power
- power unit
- electric motor
- motor car
- charging terminal
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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
- 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
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- 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
- H02J7/007—Regulation of charging or discharging current or voltage
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates to the field of electromobiles, and particularly provides a charging control system and method for an electromobile. The charging control system for the electromobile comprises a shared charging power unit set, a charging terminal set, a switching group and a charging control device. The charging control method for the electromobile comprises the following steps that the calibrated charging current information of the electromobile is obtained, the matched combination of shared charging power units is worked out, and the electromobile is charged in the manner that the switching group is controlled to select the shared charging power units in the combination to be communicated with charging terminals. According to the charging requirement of the electromobile, the matched combination of the shared charging power units is worked out, the shared charging power units in the combination are communicated with the electromobile, and the electromobile is charged. The combination of the communicated shared charging power units is dynamically adjusted according to the actual charging current information. According to the charging control system and method, the time sharing multiplex of the shared charging power units can be achieved, and the utilization rate of the shared charging power units is increased.
Description
Technical field
The present invention relates to electric automobiles, in particular to a kind of charge control system and method for electric motor car.
Background technology
Development strategy new industry, promote industry restructuring, the mode of accelerating economic development changes, and promotes international competitiveness, promotes the good and fast development of economic society---and " electric motor car " is one of first-selected new industry.And provide convenient and safe energy recharge just to seem particularly important for electric motor car.Electric motorcar charging station traditional is at present provided with several integrated chargers or split type charger, and each charger all has several charge power unit to be attached thereto.Because each charger is relatively independent, when the electric motor car charging of giving charge-current demands less, need the mode by carrying out current limliting to charge power unit to realize charging, which results in the low of charge efficiency.
Summary of the invention
In view of this, the object of the embodiment of the present invention is the charge control system and the method that provide a kind of electric motor car, to improve the utilance of charge power unit in electric motorcar charging station.
The present invention is achieved in that
First aspect, embodiments provide a kind of charge control system of electric motor car, the charge control system of described electric motor car comprises shared charge power unit group, charging terminal group, switches set and battery charge controller, described shared charge power unit group comprises N number of shared charge power unit, described charging terminal group comprises M charging terminal, and described switches set comprises S switch, wherein M≤S≤N × M, S is integer, and described N and M is the integer being more than or equal to 1; Described shared charge power unit group connects described switches set, and described switches set connects described charging terminal group, and described switches set is all connected described battery charge controller with described charging terminal group;
For M1 the charging terminal connecting electric motor car to be charged, described battery charge controller, according to the demarcation charging current information of electric motor car to be charged, is selected to share the P mated in charge power unit group by controlling described switches set
m1individual shared charge power unit is communicated with described M1 charging terminal, to described electric motor car to be charged charging, and wherein P
m1≤ N, 0≤M1≤M, P
m1integer is with M1.
In conjunction with first aspect, embodiments provide the first possible execution mode of first aspect, wherein said M1 charging terminal is also connected with D
m1individually exclusively enjoy charge power unit, wherein 0≤D
m1, D
m1for integer.
Exclusively enjoy charge power unit and only connect some charging terminals, exclusively enjoying charge power unit and can improving charge efficiency of right quantity is set.
In conjunction with the first possible execution mode of first aspect, embodiments provide the execution mode that the second of first aspect is possible, wherein said battery charge controller comprises:
Battery information acquiring unit, the vehicle mounted battery management system for Q to be charged the electric motor car connected by described charging terminal group obtains the demarcation charging current information of described Q electric motor car to be charged, wherein 0≤Q≤M, and Q is integer;
Charge power unit combination computing unit, for the demarcation charging current information of the electric motor car to be charged according to described connection M1 charging terminal, calculate the total charge power of required reality, utilize the described required total charge power of reality to deduct the D be connected with described M1 charging terminal
m1the individual power exclusively enjoying charge power unit, obtains the power of required shared charge power unit, then calculates the combination C of shared charge power unit according to the power meter sharing charge power unit
m1, described combination C
m1comprise P
m1the shared charge power unit that individual and described M1 charging terminal is connected, the shared charge power unit comprised in the combination that each electric motor car to be charged of synchronization is corresponding is without common factor;
Switch control unit, combines C for controlling with described
m1the switch that included shared charge power unit is corresponding closes, to described combination C
m1corresponding electric motor car charging to be charged.
After battery charge controller detects the electric motor car be connected with charging terminal, by with vehicle mounted battery management system (Battery Management System, BMS) communicate, obtain the demarcation charging current information of electric motor car, the shared charge power unit group of needs is calculated according to demarcation charging current information, then control to close with the corresponding switch connected of shared charge power unit group, switch after closed has been communicated with shared charge power unit group and electric motor car, achieves the charging to electric motor car.
In conjunction with the execution mode that the second of first aspect is possible, embodiments provide the third possible execution mode of first aspect, wherein said battery charge controller also comprises:
Whether detecting unit, connect electric motor car to be charged for detecting described charging terminal group;
Charge power control unit, for controlling described shared charge power unit or exclusively enjoying output current and the output voltage of charge power unit.
The detecting unit that battery charge controller is arranged can detect charging terminal and whether be connected with electric motor car.The charge requirement situation of the spike of electric energy provided according to supply network or the electric motor car of the situation of low ebb or access, charge power control unit controls output current and the output voltage sharing charge power unit or exclusively enjoy charge power unit, realizes the optimum utilization to electric energy.
In conjunction with first aspect, embodiments provide the 4th kind of possible execution mode of first aspect, wherein each switch connects a shared charge power unit and a charging terminal, as S ﹦ N × M, each shared charge power unit connects M switch, and each charging terminal is by N number of switch and described N number of shared charge power units in series; As M≤S < N × M, each shared charge power unit at least connects a switch, and each charging terminal at least connects a switch.
The setting of switches set achieves the time-sharing multiplex of shared charge power unit, improves the utilance of shared charge power unit.During the quantity S ﹦ N × M of switch, each charging terminal all can connect all shared charge power unit, and as M≤S < N × M, each charging terminal can only connect partial sharing charge power unit.
Second aspect, embodiments provide a kind of charge control method of electric motor car, be applied to the charge control system of electric motor car, the charge control system of described electric motor car comprises shared charge power unit group, charging terminal group, switches set and battery charge controller, described shared charge power unit group comprises N number of shared charge power unit, described charging terminal group comprises M charging terminal, described switches set comprises S switch, wherein M≤S≤N × M, S is integer, and described N and M is the integer being more than or equal to 1; Described shared charge power unit group connects described switches set, and described switches set connects described charging terminal group, and described switches set is all connected described battery charge controller with described charging terminal group;
Said method comprising the steps of:
The vehicle mounted battery management system of Q to be charged the electric motor car connected by described charging terminal group obtains the demarcation charging current information of described Q electric motor car to be charged, wherein 0≤Q≤M, and Q is integer;
According to the demarcation charging current information of the electric motor car to be charged of described connection M1 charging terminal, calculate the combination C sharing charge power unit in the shared charge power unit group of coupling
m1, combination C
m1comprise P
m1the shared charge power unit that individual and described M1 charging terminal is connected, the shared charge power unit comprised in the combination that each electric motor car to be charged of synchronization is corresponding is without common factor;
The P of coupling is selected by controlling described switches set
m1individual shared charge power unit is communicated with described M1 charging terminal, to described electric motor car to be charged charging, and wherein P
m1≤ N, 0≤M1≤M, P
m1integer is with M1.
In conjunction with second aspect, embodiments provide the first possible execution mode of second aspect, wherein said M1 charging terminal is also connected with D
m1individually exclusively enjoy charge power unit, wherein 0≤D
m1, D
m1for integer;
Described method is further comprising the steps of:
According to the demarcation charging current information of the electric motor car to be charged of described connection M1 charging terminal, calculate the total charge power of required reality, the described required total charge power of reality deducts the D be connected with described M1 charging terminal
m1the individual power exclusively enjoying charge power unit, obtain the power of required shared charge power unit, power according to described required shared charge power unit combines the power sharing each shared charge power unit that charge power unit group comprises, and calculates the combination C of shared charge power unit
m1.
During charging, exclusively enjoy charge power unit and be preferably electric motor car charging, exclusively enjoy charge power unit when can not meet charge requirement, then be communicated with that to share charge power unit be electric motor car charging.
In conjunction with second aspect, embodiments provide the execution mode that the second of second aspect is possible, described M1 charging terminal is also connected with D
m1individually exclusively enjoy charge power unit, wherein 0≤D
m1, D
m1for integer, wherein said method is further comprising the steps of:
In charging process, described battery charge controller to obtain the actual charge current information of described Q electric motor car to be charged every the time of setting by described charging terminal;
According to the actual charge current information of the electric motor car to be charged of connection M1 charging terminal, calculate the total charge power of required reality, if the described required total charge power of reality is greater than the D be connected with described M1 charging terminal
m1the individual power exclusively enjoying charge power unit, then the described required total charge power of reality deducts the D be connected with described M1 charging terminal
m1the individual power exclusively enjoying charge power unit, obtains the power that required reality shares charge power unit, and the power meter sharing charge power unit according to described required reality calculates the combination C of shared charge power unit
m1X, described combination C
m1Xcomprise P
m1Xthe shared charge power unit that individual and described M1 charging terminal is connected, the shared charge power unit comprised in the combination that each electric motor car to be charged of synchronization is corresponding without common factor, described combination C
m1Xbe previously combined as C
m1X-1, wherein 2≤M1X, and M1X is integer, 0≤P
m1X≤ N, and P
m1Xfor integer;
If described combination C
m1X-1c is combined with described
m1Xthere is common factor, then disconnect described combination C
m1X-1comprise and described combination C
m1Xswitch corresponding to shared charge power unit not to be covered, closed described combination C
m1X-1do not comprise and described combination C
m1Xthe switch corresponding to shared charge power unit comprised, to described electric motor car to be charged charging;
If described combination C
m1X-1c is combined with described
m1Xwithout occuring simultaneously, then closed described combination C
m1Xthe switch corresponding to shared charge power unit comprised, disconnects described combination C
m1X-1the switch corresponding to shared charge power unit comprised, to described electric motor car to be charged charging.
In charging process, after the electricity of battery reaches certain value, the electric current of charging is needed to reduce.Battery charge controller is every the time detecting actual charge current information of setting, the combination of shared charge power unit is recalculated again according to actual charge current information, the switch controlling the combination correspondence of new shared charge power unit closes, and charges to electric motor car.The combination of charge power unit is shared in so dynamic adjustment, improves the utilance of shared charge power unit.
In conjunction with the execution mode that the second of second aspect is possible, embodiments provide the third possible execution mode of second aspect, wherein said method is further comprising the steps of:
If the described required total charge power of reality is less than or equal to the D be connected with described M1 charging terminal
m1the individual power exclusively enjoying charge power unit, then D
m1the individual charge power unit that exclusively enjoys is that the electric motor car be connected with described M1 charging terminal charges.
In charging process, if required actual charge current is less than or equal to and exclusively enjoys that charge power unit can provide, then exclusively enjoying charge power unit is the electric motor car charging connected, share charge power unit and be not communicated with charging terminal.
In conjunction with second aspect, embodiments provide the 4th kind of possible execution mode of second aspect, wherein said battery charge controller also obtains the battery level information of described Q electric motor car to be charged by the vehicle mounted battery management system of Q to be charged electric motor car of described charging terminal group connection
C is combined with described in control
m1included P
m1before the step that the switch that individual shared charge power unit is corresponding is closed, described method is further comprising the steps of:
Described battery charge controller, according to described battery level information, is respectively Q electric motor car to be charged and gives charging priority level, to charge; Or
According to the preferential charging instruction received, for Q electric motor car to be charged gives charging priority level, to charge.
According to the battery level information of electric motor car or whether there is emergency, be that priority level is given in the electric motor car simultaneously charged, charge according to priority level, improve the utilization to electric energy, also have more practicality.
In conjunction with second aspect, embodiments provide the 5th kind of possible execution mode of second aspect, wherein each switch connects a shared charge power unit and a charging terminal,
As S ﹦ N × M, each shared charge power unit connects M switch, and each charging terminal is by N number of switch and described N number of shared charge power units in series, and namely each charging terminal can connect the switch of any amount in N number of switch;
As M≤S < N × M, each shared charge power unit at least connects a switch, and each charging terminal at least connects a switch.
The setting of switches set achieves the time-sharing multiplex of shared charge power unit, improves the utilance of shared charge power unit.During the quantity S ﹦ N × M of switch, each charging terminal all can connect all shared charge power unit, and as M≤S < N × M, each charging terminal can only connect partial sharing charge power unit.
The technique effect that the present invention realizes: battery charge controller calculates the combination of the shared charge power unit of coupling according to the charge requirement of electric motor car, by the switch of control switch group, the shared charge power unit in the combination of shared charge power unit is made to be communicated with electric motor car, then the combination of the shared charge power unit be communicated with according to the charging current information dynamic conditioning of reality.Such charge control system and method can realize the time-sharing multiplex of shared charge power unit, improve the utilance sharing charge power unit.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment below, be to be understood that, the following drawings illustrate only some embodiment of the present invention, therefore the restriction to scope should be counted as, for those of ordinary skill in the art, under the prerequisite not paying creative work, other relevant accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 a shows the charge control system of the electric motor car that first embodiment of the invention provides;
Fig. 1 b shows the structure of the battery charge controller that first embodiment of the invention provides;
Fig. 2 shows the charge control method of the electric motor car that first embodiment of the invention provides;
Fig. 3 a shows the charge control system of the electric motor car that second embodiment of the invention provides;
Fig. 3 b shows the structure of the battery charge controller that second embodiment of the invention provides;
Fig. 4 shows the charge control method of the electric motor car that second embodiment of the invention provides.
Embodiment
Below in conjunction with accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.The assembly of the embodiment of the present invention describing and illustrate in usual accompanying drawing herein can be arranged with various different configuration and design.Therefore, below to the detailed description of the embodiments of the invention provided in the accompanying drawings and the claimed scope of the present invention of not intended to be limiting, but selected embodiment of the present invention is only represented.Based on embodiments of the invention, the every other embodiment that those skilled in the art obtain under the prerequisite not making creative work, all belongs to the scope of protection of the invention.
When there being Q electric motor car to be charged, consult Fig. 1 a and 1b, the first embodiment of the present invention discloses a kind of charge control system of electric motor car, and the charge control system of this electric motor car comprises shared charge power unit group 201, charging terminal group 501, switches set 301 and battery charge controller 101.
Battery charge controller 101 comprises battery information acquiring unit 102, charge power unit combination computing unit 103 and switch control unit 104.Share charge power unit group 201 and comprise N number of shared charge power unit 202, charging terminal group 501 comprises M charging terminal 401, and switches set 301 comprises S switch 302, and wherein M≤S≤N × M, S is integer, N and M is the integer being more than or equal to 1; Share charge power unit group 201 connecting valve group 301, switches set 301 connects charging terminal group 501, and switches set 301 is all connected battery charge controller 101 with charging terminal group 501.
For M1 the charging terminal 401 connecting electric motor car to be charged, battery charge controller 101, according to the demarcation charging current information of electric motor car to be charged, selects by control switch group 301 P sharing coupling in charge power unit group 201
m1individual shared charge power unit 202 is communicated with M1 charging terminal 401, to electric motor car to be charged charging, and wherein P
m1≤ N, 0≤M1≤M, P
m1integer is with M1.
Wherein, battery information acquiring unit 102, for detecting the electric motor car be connected with charging terminal 401, by communicating with BMS, obtains the demarcation charging current information of electric motor car.
Charge power unit combination computing unit 103 is for calculating the combination C of the shared charge power unit 202 mated with electric motor car to be charged according to demarcation charging current information
m1, combination C
m1for P
m1individual shared charge power unit combination.
Switch control unit 104 is for controlling and combination C
m1the switch 302 of shared charge power unit 202 correspondence comprised closes, and charges to electric motor car.
Consult Fig. 2, disclosed in the first embodiment of the present invention, the charge control method of electric motor car comprises the following steps:
S201 step: the demarcation charging current obtaining Q electric motor car to be charged, wherein 0≤Q≤M, and Q is integer.
S202 step: the combination C calculating the shared charge power unit 202 that the electric motor car to be charged that is connected with M1 charging terminal 401 mates
m1.
S203 step: control and combination C
m1the switch 302 of shared charge power unit 202 correspondence comprised closes, and charges to electric motor car.
Consult Fig. 3 a and 3b, the second embodiment of the present invention discloses a kind of charge control system of electric motor car, and the charge control system of this electric motor car comprises shared charge power unit group 201, charging terminal group 501, switches set 301, battery charge controller 101 and exclusively enjoys charge power unit 601.Each charging terminal 401 connects D
m1individually exclusively enjoy charge power unit 601,0≤D
m1, D
m1for integer.
Battery charge controller 101 comprises detecting unit 105, battery information acquiring unit 102, charge power unit combination computing unit 103, switch control unit 104 and charge power control unit 106.
Wherein, whether detecting unit 105 connects electric motor car to be charged for detecting charging terminal group 501;
Battery information acquiring unit 102 communicates for the BMS of Q the electric motor car be connected with charging terminal group 501, obtains the demarcation charging current information of Q electric motor car.
Charge power unit combination computing unit 103 is for calculating the combination C of the shared charge power unit 202 mated with electric motor car to be charged according to the demarcation charging current information obtained
m1, combination C
m1for P
m1individual shared charge power unit combination.
Switch control unit 104 is for controlling and combination C
m1the switch 302 of shared charge power unit 202 correspondence comprised closes, and charges to electric motor car.
Charge power control unit 106 is for controlling shared charge power unit or exclusively enjoying output current and the output voltage of charge power unit.
Consult Fig. 4, the second embodiment of the present invention discloses the another kind of charge control method of electric motor car, except the step of method as shown in Figure 2, also comprises:
S200 step: detect charging terminal group 501 and whether connect electric motor car to be charged.
In charging process, due to the change of battery electric quantity, the charged electrical of actual demand fails to be convened for lack of a quorum reduction, calls according to the charging current of reality the utilance that shared charge power unit 202 can improve shared charge power unit 202.
Perform S201 ' step every the time of setting: the vehicle mounted battery management system of Q to be charged the electric motor car connected by charging terminal group 501, obtain the actual charge current information of Q electric motor car to be charged.
S204 step: calculate the total charge power of reality needed for electric motor car be connected with M1 charging terminal.
S205 step: whether the total charge power of the reality needed for judgement is greater than the D that M 1 charging terminal 401 connects
m1the individual power exclusively enjoying charge power unit 601.
If the total charge power of required reality is less than or equal to the D that M 1 charging terminal 401 connects
m1the individual power exclusively enjoying charge power unit 601, then perform:
S206 step: D
m1the individual charge power unit 601 that exclusively enjoys is the electric motor car charging connected.
If the total charge power of required reality is greater than the D that M1 charging terminal 401 connects
m1the individual power exclusively enjoying charge power unit 601, then perform:
S202 ' step: the total charge power of required reality deducts the D be connected with M 1 charging terminal 401
m1the individual power exclusively enjoying charge power unit 601, obtains the power that required reality shares charge power unit 202, and the power meter sharing charge power unit 202 according to required reality calculates the combination C of shared charge power unit
m1X, combination C
m1Xcomprise P
m1Xthe individual shared charge power unit 202 be connected with M1 charging terminal 401, the shared charge power unit 202 comprised in the combination that each electric motor car to be charged of synchronization is corresponding without common factor, combination C
m1Xbe previously combined as C
m1X-1, wherein 2≤M1X, and M1X is integer, 0≤P
m1X≤ N, and P
m1Xfor integer.
S203 ' step: judge C
m1X-1with combination C
mX1whether there is common factor, the closed or cut-off switch 302 according to judged result.
If combination C
m1X-1with combination C
m1Xthere is common factor, then open combinations C
m1X-1comprise and combine C
m1Xswitch 302 corresponding to shared charge power unit 202 not to be covered, closed combination C
m1X-1do not comprise and combine C
m1Xthe switch 302 corresponding to shared charge power unit 202 comprised, charges to electric motor car to be charged;
If combination C
m1X-1with combination C
m1Xwithout occuring simultaneously, then closed combination C
m1Xthe switch 302, open combinations C corresponding to shared charge power unit 202 comprised
m1X-1the switch 302 corresponding to shared charge power unit 202 comprised, charges to electric motor car to be charged.
The total charge power of reality needed for electric motor car that M1 the charging terminal calculated when S204 step connects is 0, then illustrate that the electric motor car of M1 charging terminal connection is full of electricity.
Switches set 301 Connection Sharing charge power unit group 201 and charging terminal group 501, concrete connected mode is: each switch 302 connects a shared charge power unit 202 and a charging terminal 401; As S ﹦ N × M, each shared charge power unit 202 connects M switch 302, each charging terminal 401 is connected with described N number of shared charge power unit 202 by N number of switch 302, and namely each charging terminal 401 can connect the switch 302 of any amount in N number of switch 302; As M≤S < N × M, each shared charge power unit 202 at least connects a switch 302, each charging terminal 401 at least connects a switch 302, and namely each charging terminal can only connect the partial switch 302 in N number of switch 302
The setting of switches set 301 achieves the time-sharing multiplex of shared charge power unit 202, improves the utilance of shared charge power unit 202.
In order to improve charge efficiency better, the vehicle mounted battery management system of Q to be charged the electric motor car that battery charge controller 101 is also connected by charging terminal group 501 obtains the battery level information of Q electric motor car to be charged, being respectively Q electric motor car to be charged according to the battery level information obtained and giving charging priority level, is electric motor car charging according to the order of priority level.Priority level also can be produced by the setting of operating personnel.Charge according to priority level, the situation of urgent charging can be met, have more practicality.
The charge power control unit 106 Connection Sharing charge power unit 202 that battery charge controller 101 is arranged and exclusively enjoy charge power unit 601, when there is spike or low ebb in the electric energy provided at supply network, or share charge power unit 202 according to actual charge requirement control or exclusively enjoy output current and the output voltage of charge power unit 601, improve the utilance of electric energy.
Above-mentioned charging terminal 401 is charging branch, and electric motor car to be charged is connected with charging terminal 401 after connecting charging pile.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. the charge control system of an electric motor car, it is characterized in that, the charge control system of described electric motor car comprises shared charge power unit group, charging terminal group, switches set and battery charge controller, described shared charge power unit group comprises N number of shared charge power unit, described charging terminal group comprises M charging terminal, and described switches set comprises S switch, wherein M≤S≤N × M, S is integer, and described N and M is the integer being more than or equal to 1; Described shared charge power unit group connects described switches set, and described switches set connects described charging terminal group, and described switches set is all connected described battery charge controller with described charging terminal group;
For M1 the charging terminal connecting electric motor car to be charged, described battery charge controller, according to the demarcation charging current information of electric motor car to be charged, is selected to share the P mated in charge power unit group by controlling described switches set
m1individual shared charge power unit is communicated with described M1 charging terminal, to described electric motor car to be charged charging, and wherein P
m1≤ N, 0≤M1≤M, P
m1integer is with M1.
2. the charge control system of electric motor car according to claim 1, is characterized in that, described M1 charging terminal is also connected with D
m1individually exclusively enjoy charge power unit, wherein 0≤D
m1, D
m1for integer.
3. the charge control system of electric motor car according to claim 2, is characterized in that, described battery charge controller comprises:
Battery information acquiring unit, the vehicle mounted battery management system for Q to be charged the electric motor car connected by described charging terminal group obtains the demarcation charging current information of described Q electric motor car to be charged, wherein 0≤Q≤M, and Q is integer;
Charge power unit combination computing unit, for the demarcation charging current information of the electric motor car to be charged according to connection M1 charging terminal, calculate the total charge power of required reality, utilize the described required total charge power of reality to deduct the D be connected with described M1 charging terminal
m1the individual power exclusively enjoying charge power unit, obtains the power of required shared charge power unit, then calculates the combination C of shared charge power unit according to the power meter sharing charge power unit
m1, described combination C
m1comprise P
m1the shared charge power unit that individual and described M1 charging terminal is connected, the shared charge power unit comprised in the combination that each electric motor car to be charged of synchronization is corresponding is without common factor;
Switch control unit, combines C for controlling with described
m1the switch that included shared charge power unit is corresponding closes, to described combination C
m1corresponding electric motor car charging to be charged.
4. the charge control system of electric motor car according to claim 3, is characterized in that, described battery charge controller also comprises:
Whether detecting unit, connect electric motor car to be charged for detecting described charging terminal group;
Charge power control unit, for controlling described shared charge power unit or exclusively enjoying output current and the output voltage of charge power unit.
5. the charge control system of electric motor car according to claim 1, it is characterized in that, each switch connects a shared charge power unit and a charging terminal, as S ﹦ N × M, each shared charge power unit connects M switch, and each charging terminal is by N number of switch and described N number of shared charge power units in series; As M≤S < N × M, each shared charge power unit at least connects a switch, and each charging terminal at least connects a switch.
6. the charge control method of an electric motor car, be applied to the charge control system of electric motor car, it is characterized in that, the charge control system of described electric motor car comprises shared charge power unit group, charging terminal group, switches set and battery charge controller, and described shared charge power unit group comprises N number of shared charge power unit, and described charging terminal group comprises M charging terminal, described switches set comprises S switch, wherein M≤S≤N × M, S is integer, and described N and M is the integer being more than or equal to 1; Described shared charge power unit group connects described switches set, and described switches set connects described charging terminal group, and described switches set is all connected described battery charge controller with described charging terminal group;
Said method comprising the steps of:
The vehicle mounted battery management system of Q to be charged the electric motor car connected by described charging terminal group obtains the demarcation charging current information of described Q electric motor car to be charged, wherein 0≤Q≤M, and Q is integer;
According to the demarcation charging current information of the electric motor car to be charged of described connection M1 charging terminal, calculate the combination C sharing charge power unit in the shared charge power unit group of coupling
m1, combination C
m1comprise P
m1the shared charge power unit that individual and described M1 charging terminal is connected, the shared charge power unit comprised in the combination that each electric motor car to be charged of synchronization is corresponding is without common factor;
The P of coupling is selected by controlling described switches set
m1individual shared charge power unit is communicated with described M1 charging terminal, to described electric motor car to be charged charging, and wherein P
m1≤ N, 0≤M1≤M, P
m1integer is with M1.
7. the charge control method of electric motor car according to claim 6, is characterized in that, described M1 charging terminal is also connected with D
m1individually exclusively enjoy charge power unit, wherein 0≤D
m1, D
m1for integer;
Described method is further comprising the steps of:
According to the demarcation charging current information of the electric motor car to be charged of described connection M1 charging terminal, calculate the total charge power of required reality, the described required total charge power of reality deducts the D be connected with described M1 charging terminal
m1the individual power exclusively enjoying charge power unit, obtain the power of required shared charge power unit, power according to described required shared charge power unit combines the power sharing each shared charge power unit that charge power unit group comprises, and calculates the combination C of shared charge power unit
m1.
8. the charge control method of electric motor car according to claim 6, is characterized in that, described M1 charging terminal is also connected with D
m1individually exclusively enjoy charge power unit, wherein 0≤D
m1, D
m1for integer, described method is further comprising the steps of:
In charging process, described battery charge controller to obtain the actual charge current information of described Q electric motor car to be charged every the time of setting by described charging terminal;
According to the actual charge current information of the electric motor car to be charged of connection M1 charging terminal, calculate the total charge power of required reality, if the described required total charge power of reality is greater than the D be connected with described M1 charging terminal
m1the individual power exclusively enjoying charge power unit, then the described required total charge power of reality deducts the D be connected with described M1 charging terminal
m1the individual power exclusively enjoying charge power unit, obtains the power that required reality shares charge power unit, and the power meter sharing charge power unit according to described required reality calculates the combination C of shared charge power unit
m1X, described combination C
m1Xcomprise P
m1Xthe shared charge power unit that individual and described M1 charging terminal is connected, the shared charge power unit comprised in the combination that each electric motor car to be charged of synchronization is corresponding without common factor, described combination C
m1Xbe previously combined as C
m1X-1, wherein 2≤M1X, and M1X is integer, 0≤P
m1X≤ N, and P
m1Xfor integer;
If described combination C
m1X-1c is combined with described
m1Xthere is common factor, then disconnect described combination C
m1X-1comprise and described combination C
m1Xswitch corresponding to shared charge power unit not to be covered, closed described combination C
m1X-1do not comprise and described combination C
m1Xthe switch corresponding to shared charge power unit comprised, to described electric motor car to be charged charging;
If described combination C
m1X-1c is combined with described
m1Xwithout occuring simultaneously, then closed described combination C
m1Xthe switch corresponding to shared charge power unit comprised, disconnects described combination C
m1X-1the switch corresponding to shared charge power unit comprised, to described electric motor car to be charged charging.
9. the charge control method of electric motor car according to claim 8, is characterized in that, described method is further comprising the steps of:
If the described required total charge power of reality is less than or equal to the D be connected with described M1 charging terminal
m1the individual power exclusively enjoying charge power unit, then D
m1the individual charge power unit that exclusively enjoys is that the electric motor car be connected with described M1 charging terminal charges.
10. the charge control method of electric motor car according to claim 6, it is characterized in that, described battery charge controller also obtains the battery level information of described Q electric motor car to be charged by the vehicle mounted battery management system of Q to be charged electric motor car of described charging terminal group connection
C is combined with described in control
m1included P
m1before the step that the switch that individual shared charge power unit is corresponding is closed, described method is further comprising the steps of:
Described battery charge controller, according to described battery level information, is respectively Q electric motor car to be charged and gives charging priority level, so that according to described charging priority level arrangement charging; Or
According to the preferential charging instruction received, for charging priority level is given in Q electric motor car to be charged, so that according to described charging priority level arrangement charging.
The charge control method of 11. electric motor cars according to claim 6, is characterized in that, each switch connects a shared charge power unit and a charging terminal,
As S ﹦ N × M, each shared charge power unit connects M switch, and each charging terminal is by N number of switch and described N number of shared charge power units in series, and namely each charging terminal can connect the switch of any amount in N number of switch;
As M≤S < N × M, each shared charge power unit at least connects a switch, and each charging terminal at least connects a switch.
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