CN106364362B - A kind of charging electric car method and its system - Google Patents
A kind of charging electric car method and its system Download PDFInfo
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- CN106364362B CN106364362B CN201611058148.6A CN201611058148A CN106364362B CN 106364362 B CN106364362 B CN 106364362B CN 201611058148 A CN201611058148 A CN 201611058148A CN 106364362 B CN106364362 B CN 106364362B
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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
-
- 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
- B60L53/30—Constructional details of charging stations
- B60L53/32—Constructional details of charging stations by charging in short intervals along the itinerary, e.g. during short stops
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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
-
- 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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- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of charging electric car methods, comprising steps of when electric car contact charging rail, to the energy storage device of electric car with predetermined current I1Charge T time, T=T1+T2, T1=k1×t1, k1For predetermined coefficient, k1>=1, t1The time required to contacting charging rail to electric car parking for electric car；T2For preset time period；According to energy storage device in preset time period T2Voltage value V when starting1With energy storage device in preset time period T2Voltage value V when termination2Obtain the capacitance C of energy storage device；According to capacitance C to energy storage device output adjustment electric current In；When electric car is detached from charging rail or energy storage device charging complete, stopping adjustment electric current InOutput.The invention also discloses a kind of charging electric car systems.Above-mentioned charging electric car method, is adjusted automatically according to the maximum charging current of energy storage device, it is ensured that energy storage device will not there is a situation where current charge, and to greatest extent guarantee electric car reliably run.
Description
Technical field
The present invention relates to rail traffic charging technique field, in particular to a kind of charging electric car method.The invention further relates to
A kind of charging electric car system.
Background technique
The energy storage device of modern energy storage type electric car often uses multiple groups parallel operation mode, the electrical source of power as electric car；
Electric car is charged by actively accessing charging system.
For the normal operation for guaranteeing trolley line, the every station of electric car, which is entered the station, charges, and limits the charging time.Normal
In the case of, multiple groups energy storage device works at the same time, and usually, charging system according to pre-seting charging with constant current, permanent function and
The charging modes such as constant pressure；So, if wherein one or more groups of energy storage devices break down, can not normal charge and discharge when,
Charging system is charged with constant current, the permanent charging modes such as function or constant pressure still according to pre-seting charging, it is most likely that causes peace
Full accident.
Summary of the invention
The object of the present invention is to provide a kind of charging electric car method, which can judge automatically electric car energy storage
Device working group number, is adjusted automatically according to the maximum charging current of energy storage device.It is a further object of the present invention to provide one
Kind charging electric car system.
To achieve the above object, the present invention provides a kind of charging electric car method, includes the following steps:
Obtain the running position of electric car；
When the electric car contacts charging rail, to the energy storage device of the electric car with predetermined current I1Charge T time, wherein T
=T1+T2, T1=k1×t1, wherein k1For predetermined coefficient, and k1>=1, t1Charging rail to the electric car is contacted for the electric car to stop
The time required to vehicle；T2For preset time period；
According to the energy storage device in the preset time period T2Voltage value V when starting1With the energy storage device described
Preset time period T2Voltage value V when termination2Obtain the capacitance C of the energy storage device；
According to the capacitance C to the energy storage device output adjustment electric current In；
When the electric car is detached from the charging rail or the energy storage device charging complete, the stopping adjustment electric current InIt is defeated
Out.
Relative to above-mentioned background technique, charging electric car method provided by the invention, core is, charges when electric car contacts
When rail, just start with predetermined current I1Charge T time；When electric car starts the T that contact charging rail stops to electric car1In time, with pre-
If electric current I1Charging；In T1In time, electric car passes through Brake energy recovery, therefore the received electric current of energy storage device institute is I1In addition
The electric current of energy regenerating；T after electric car stops2In time, still with predetermined current I1Charging, and electric car can exist at this time
Certain power loss, the loss etc. of electrical equipment, therefore the received electric current of energy storage device institute is I1Subtract loss part；
In addition to this, according to the energy storage device in preset time period T2Voltage value V when starting1With energy storage device in preset time period
T2Voltage value V when termination2The capacitance C of energy storage device is obtained, and energy storage device output adjustment is judged according to capacitance C
Electric current In, thus to energy storage device output adjustment electric current In, and then charge to electric car；Using aforesaid way, it can be determined that electricity
Working group's number of power supply in the energy storage device of vehicle, is adjusted automatically according to the maximum charging current of energy storage device, it is ensured that
Energy storage device will not there is a situation where current charge, and to greatest extent guarantee electric car reliably run.
Preferably, it is described according to the energy storage device in the T1The voltage value V at moment1With the energy storage device described
T2The voltage value V at moment2The step of obtaining the capacitance C of the energy storage device specifically includes:
Pass through formulaThe capacitance C of the energy storage device is calculated,
Wherein, I2It is the energy storage device in the T2Loss current in time.
Preferably, it is described according to the capacitance C to the energy storage device output adjustment electric current InThe step of specifically wrap
It includes:
Work as 1/3Cn≤ capacitance C≤the 4/3Cn, the adjustment electric current InFor one group of power supply in the energy storage device
Corresponding rated operational current；
Work as 5/3Cn≤ capacitance C≤the 7/3Cn, the adjustment electric current InFor two groups of power supplys in the energy storage device
Corresponding rated operational current；
Work as 8/3Cn≤ capacitance C≤the 10/3Cn, the adjustment electric current InFor three groups of electricity in the energy storage device
Rated operational current corresponding to source；
Wherein, above-mentioned CnFor the average value of the capacitance C for the energy storage device being calculated several times before.
Preferably, described when electric car contact charging rail, to the energy storage device of the electric car with predetermined current I1Charge T
The step of time, specifically includes:
When electric car contact charging rail, the ID number of the electric car is identified；
According to predetermined current I corresponding to the ID number1It charges to the energy storage device of the electric car.
Preferably, the predetermined coefficient k1Value range between 1.5~2.0.
Preferably, whole charging time are≤30s.
The present invention also provides a kind of charging electric car systems, comprising:
Position acquisition module: for obtaining the running position of electric car；
Trial charging module: for when electric car contact charging rail, to the energy storage device of the electric car with predetermined current I1
Charge T time, wherein T=T1+T2, and T1=k1×t1, wherein k1For predetermined coefficient, t1Charging rail is contacted extremely for the electric car
The time required to the electric car parking；
Capacity calculation module: it is used for according to the energy storage device in the T1The voltage value V at moment1With the energy storage device
In the T2The voltage value V at moment2Obtain the capacitance C of the energy storage device；
Quick charge module: it is used for according to the capacitance C to the energy storage device output adjustment electric current In；
Stop charging module: for when the electric car is detached from the charging rail or the energy storage device charging complete, stopping
The adjustment electric current InOutput.
Preferably,
The trial charging module and the quick charge module include to the change to energy storage device output electric current
Flow unit；And/or
The capacity calculation module includes the voltage detection unit to detect the energy storage device voltage.
Preferably, further includes:
Electric car recognition unit, to identify the ID number of the electric car when electric car contact charging rail.
Preferably, the electric car recognition unit includes being installed on the label of the electric car and to read the label
Card reader.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the flow chart of charging electric car method provided by the embodiment of the present invention；
Fig. 2 is a kind of flow chart of specific embodiment of charging electric car method provided by the embodiment of the present invention；
Fig. 3 is the structural block diagram of charging electric car system provided by the embodiment of the present invention；
Fig. 4 is the connection figure of charging electric car system and electric car provided by the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In order to make those skilled in the art more fully understand the present invention program, with reference to the accompanying drawing and it is embodied
The present invention is described in further detail for mode.
Please refer to figs. 1 to 4, and Fig. 1 is the flow chart of charging electric car method provided by the embodiment of the present invention；Fig. 2 is this
A kind of flow chart of specific embodiment of charging electric car method provided by inventive embodiments；Fig. 3 is institute of the embodiment of the present invention
The structural block diagram of the charging electric car system of offer；Fig. 4 is the company of charging electric car system and electric car provided by the embodiment of the present invention
Map interlinking.
A kind of charging electric car method provided by the invention, mainly includes the following steps:
S1, the running position for obtaining electric car；
S2, charging rail is contacted when the electric car, to the energy storage device of the electric car with predetermined current I1Charge T time,
In, T=T1+T2, T1=k1×t1, wherein k1For predetermined coefficient, and k1>=1, t1Charging rail is contacted to the electricity for the electric car
The time required to vehicle parking；T2For preset time period；
S3, according to the energy storage device in the preset time period T2Voltage value V when starting1Exist with the energy storage device
The preset time period T2Voltage value V when termination2Obtain the capacitance C of the energy storage device；
S4, according to the capacitance C to the energy storage device output adjustment electric current In；
S5, the charging rail or the energy storage device charging complete, the stopping adjustment electric current I are detached from when the electric carn
Output.
Core of the invention is, in step S2, once electric car starts contact charging rail, just starts to charge, and with
Predetermined current I1Charge T time；And T=T1+T2, and T1=k1×t1, wherein k1For predetermined coefficient, t1It is filled for electric car contact
The time required to electric rail stops to the electric car；That is, contact charges rail up to electric car stops this section of t since electric car1
In time, electric car is constantly in charged state；And a period of time (T after electric car stops1-t1) in, electric car is still with default
Electric current I1Charging.
k1For predetermined coefficient, and k1>=1, the present invention is preferably by k1Value range be arranged between 1.5~2.0, thus
Obtain relatively reasonable T1Period；In T1It in period, due to electric car Reduced Speed Now and is finally stopped, electric car passes through Brake Energy
Amount recycling, therefore the received electric current of energy storage device institute is I1In addition the electric current of energy regenerating.
With T1Period continuous T2In period, since electric car has stopped, at this time without energy for recycling, therefore
In T2The received electric current of energy storage device institute is I in period1Corresponding component (electrical components such as trolley air conditioner) is subtracted to be consumed
Electric energy, that is, the received electric current of energy storage device institute is I1Subtract loss part.
In step s3, energy storage device is detected respectively in preset time period T2Voltage value V when starting1Exist with energy storage device
The preset time period T2Voltage value V when termination2；Preset time period T2Voltage value V when starting1Namely T1Period is most
Voltage value corresponding to the point moment of end；Energy storage device is in the preset time period T2Voltage value V when termination2That is T2Period
The end point moment corresponding to voltage value V2, and according to voltage value V1And voltage value V2Obtain the overall electricity of energy storage device
Hold capacity C.
It, can be according to capacitance C to energy storage device output adjustment after knowing the overall capacitance capacity C of energy storage device
Electric current In, such as step S4.
In step s 5, when electric car is detached from the charging rail or energy storage device charging complete, the stopping adjustment electric current In
Output.As long as just terminating charging process that is, electric car is detached from charging rail；If electric car is without departing from charging rail, however energy storage
When the electricity of device has met preset requirement, it can equally terminate charging process.Here preset requirement can be energy storage device and fill
Electricity when full electricity, be also possible to energy storage device it is fully charged when electricity percentage or other, repeats no more herein.
It knows to find out by above-mentioned, once electric car starts contact charging rail, with predetermined current I1Charge T time, and presets
Electric current I1Current value it is often smaller, can be set to rated operational current corresponding to one group of power supply in energy storage device,
It can be decided according to the actual requirements.
In addition to this, in T2After the end point moment (namely last moment of T time) of period, according to T1
Voltage value V corresponding to the end point moment of period1And T2Voltage value corresponding to the end point moment of period
V2The capacitance C of energy storage device is obtained, so that charging current is adjusted, to adjust electric current InIt is exported, to be carried out to electric car
Charging.
So, entering the station the time for electric car is taken full advantage of, and can be according to the capacitor of current electric car energy storage device
Capacity C adjust charging current, it is ensured that energy storage device will not there is a situation where current charge, and to greatest extent guarantee electric car it is reliable
Operation.
For step S3, the current capacitance C of energy storage device in order to obtain electric car can pass through formulaThe capacitance C of the energy storage device is calculated, wherein I2For the storage
Energy device is in the T2Loss current in time.
In T2In period, loss current can be denoted as I2, and the current capacitor of energy storage device is obtained by above-mentioned formula
Capacity C；It is, of course, also possible to subregion judgement is carried out by the way that capacitance C is scaled voltage build-up rate, it can also be by increasing electric car
Communication between charging system, the normal work group number for collecting electric car energy storage device replace the calculating of charging system to judge, herein
It will not be described in great detail.
In above-mentioned steps S4, according to the capacitance C to the energy storage device output adjustment electric current InThe step of have
Body includes:
Work as 1/3Cn≤ capacitance C≤the 4/3Cn, the adjustment electric current InFor one group of power supply in the energy storage device
Corresponding rated operational current；
Work as 5/3Cn≤ capacitance C≤the 7/3Cn, the adjustment electric current InFor two groups of power supplys in the energy storage device
Corresponding rated operational current；
Work as 8/3Cn≤ capacitance C≤the 10/3Cn, the adjustment electric current InFor three groups of electricity in the energy storage device
Rated operational current corresponding to source；
Wherein, above-mentioned CnFor the average value of the capacitance C for the energy storage device being calculated several times before.
Specifically, after a certain period of time, the capacity of energy storage device can decay, when capacity attenuation 20%, energy storage for electric car operation
Device is replaced, therefore the actual capacity and rated capacity calculated has the error of maximum 20%, to guarantee energy storage dress
The judgement for setting working group's number is unaffected, can be by the label of card reader and electric car, the continuous energy storage dress for recording each column electric car
The capacity of calculating is set, and in this, as the reference frame of single group energy storage device actual capacity；
Assuming that detecting that n-th tag ID is 1# electric car, calculates and judge the energy storage device working group number of the electric car for 3
The capacity of energy storing device of calculating is C and saved to 1# electric car C by group0, while by preceding 1 energy storage for calculating and judging 1# electric car
Calculating capacity of energy storing device C when device working group number is 3 groups is saved to 1# electric car C1, and so on, record and save 1# electricity
Vehicle C15, then the capability value of this 16 times calculating is averaged, the value after calculating is as 1# electric car CnValue: Cn=∑ C1+C2+…+
Cn/n；That is, CnFor the average value of the capacitance C for the energy storage device being calculated several times before.
In addition to this, when the electric car contacts charging rail, to the energy storage device of the electric car with predetermined current I1When charging T
Between the step of specifically include:
When electric car contact charging rail, the ID number of the electric car is identified；
According to predetermined current I corresponding to the ID number1It charges to the energy storage device of the electric car.
The present invention will be when electric car contact charging rail, to the energy storage device of the electric car with predetermined current I1When charging T
Between start to described when the electric car is detached from the charging rail or the energy storage device charging complete, the stopping adjustment electric current In
Output until, whole charging time be≤30s.That is, to (T+ output adjustment electric current I of whole charging timenTime) carry out
Limitation, can satisfy electric car during dynamic duty in this way, and does not increase the long time and carry out energy storage device working group number
In the case where judgement, charging current is adjusted in time, is charged to electric car.
Figure of description 2 is a kind of process of specific embodiment of charging electric car method provided by the embodiment of the present invention
Figure；
Similar to the above, in step S10, triggering charging electric car method brings into operation, and in step S20, whether detection electric car
It enters the station, that is, judge whether electric car starts to contact with the charging rail in station, if so, step S30 is carried out, identification vehicle ID, and according to
Predetermined current I corresponding to the ID1It charges, i.e. progress step S40.
In step s 50, T is obtained1Voltage value V corresponding to the end point moment of period1；It is carried out when charging is lasting
T2After time, T is obtained2Voltage value V corresponding to the end point moment of period2；Step S60 is carried out, and according to above-mentioned electricity
The calculation formula for holding capacity C is calculated, and carries out step S70, calculates working group's number of electric car energy storage device；Assuming that energy storage fills
Group number when setting normal work is 3, then when calculating and the group number worked normally judged is 3 (step S80),
Carry out step S81；When calculating and the group number worked normally judged is 2 (step S90), step S91 is carried out；When
It calculates and when the group number worked normally judged is 1 (step S100), carries out step S110.This is calculated
The capacitance C of energy storage device stored, so as to subsequent for CnCalculating, such as step S200.
In step S300, judge electric car whether be detached from the charging rail or energy storage device whether charging complete, such as above
It is described；If so, stopping the adjustment electric current InOutput, that is, stop charging, such as step S400, and complete this charging
Process, such as step S500.
Charging electric car system provided in an embodiment of the present invention is introduced below, control system described below and above
The method can be compareed mutually.
Charging electric car system provided by the invention includes mainly following module, as shown in Figure of description 3.
Position acquisition module 100: for obtaining the running position of electric car；
Trial charging module 200: for when electric car contact charging rail, to the energy storage device of the electric car with predetermined current
I1Charge T time, wherein T=T1+T2, and T1=k1×t1, wherein k1For predetermined coefficient, t1Charging rail is contacted for the electric car
The time required to electric car parking；
Capacity calculation module 300: it is used for according to the energy storage device in the T1The voltage value V at moment1It is filled with the energy storage
It sets in the T2The voltage value V at moment2Obtain the capacitance C of the energy storage device；
Quick charge module 400: it is used for according to the capacitance C to the energy storage device output adjustment electric current In；
Stop charging module 500: for stopping when the electric car disengaging charging rail or the energy storage device charging complete
The only adjustment electric current InOutput.
Preferably, the trial charging module and the quick charge module include to export electricity to the energy storage device
The current transforming unit of stream；And/or
The capacity calculation module includes the voltage detection unit to detect the energy storage device voltage.
Preferably, further includes:
Electric car recognition unit, to identify the ID number of the electric car when electric car contact charging rail.
Preferably, the electric car recognition unit includes being installed on the label of the electric car and to read the label
Card reader.
Figure of description 4 shows the connection figure of charging electric car system and electric car, it can be seen that main in charging unit 1
Including control unit, current transforming unit, current detecting unit and voltage detection unit；Card reader 2 belongs to electric car recognition unit, electricity
The label 3 of vehicle is used for for the identification of card reader 2, and the accumulation power supply 4 of electric car can be located at the top of electric car 6, accumulation power supply 4 and charging
Rail 5 connects, and rail 7 is located at the bottom of electric car 6.With the ID number of electric car on label 3, and each column electric car has different ID
Number, so as to the identification of card reader 2.
It should be noted that each embodiment is described in a progressive manner in specification, each embodiment is stressed
Be the difference from other embodiments, similar portion may refer to each other between each embodiment.For embodiment public affairs
For the device opened, since it is corresponded to the methods disclosed in the examples, so description is relatively simple, related place is referring to method
Part illustrates.
Professional further appreciates that, unit described in conjunction with the examples disclosed in the embodiments of the present disclosure
And algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software generally describes each exemplary composition and step according to function in the above description.These
Function is executed in a manner of hardware or software actually, specific application and design constraint depending on technical solution.Specially
Industry personnel can use different methods to achieve the described function each specific application, but this realization should not be recognized
It is beyond the scope of this invention.
Charging electric car method provided by the present invention and its system are described in detail above.Tool used herein
Principle and implementation of the present invention are described for body example, the above embodiments are only used to help understand this hair
Bright method and its core concept.It should be pointed out that for those skilled in the art, not departing from the present invention
, can be with several improvements and modifications are made to the present invention under the premise of principle, these improvement and modification also fall into right of the present invention
It is required that protection scope in.
Claims (9)
1. a kind of charging electric car method, comprising: obtain the running position of electric car；
It is characterized by further comprising:
When the electric car contacts charging rail, to the energy storage device of the electric car with predetermined current I1Charge T time, wherein T=T1+
T2, T1=k1×t1, wherein k1For predetermined coefficient, and k1>=1, t1Charging rail is contacted to electric car parking institute for the electric car
It takes time；T2For preset time period, T1And T2For the continuous period, and T1In T2Before；
According to the energy storage device in the preset time period T2Voltage value V when starting1With the energy storage device described default
Period T2Voltage value V when termination2Obtain the capacitance C of the energy storage device；
According to the capacitance C to the energy storage device output adjustment electric current In；
When the electric car is detached from the charging rail or the energy storage device charging complete, the stopping adjustment electric current InOutput；
Wherein, it is described according to the capacitance C to the energy storage device output adjustment electric current InThe step of specifically include:
Work as 1/3Cn≤ capacitance C≤the 4/3Cn, the adjustment electric current InIt is right for one group of power supply in the energy storage device
The rated operational current answered；
Work as 5/3Cn≤ capacitance C≤the 7/3Cn, the adjustment electric current InIt is right for two groups of power supplys in the energy storage device
The rated operational current answered；
Work as 8/3Cn≤ capacitance C≤the 10/3Cn, the adjustment electric current InFor three groups of power supply institutes in the energy storage device
Corresponding rated operational current；
Wherein, above-mentioned CnFor the average value of the capacitance C for the energy storage device being calculated several times before.
2. charging electric car method according to claim 1, which is characterized in that it is described according to the energy storage device described pre-
If period T2Voltage value V when starting1With the energy storage device in the preset time period T2Voltage value V when termination2It obtains
The step of capacitance C of the energy storage device, specifically includes:
Pass through formulaThe capacitance C of the energy storage device is calculated, wherein
T2For the preset time period, I1For the predetermined current, I2It is the energy storage device in the T2Loss current in time.
3. charging electric car method according to claim 1 or 2, which is characterized in that it is described to work as electric car contact charging rail,
To the energy storage device of the electric car with predetermined current I1The step of T time that charges, specifically includes:
When electric car contact charging rail, the ID number of the electric car is identified；
According to predetermined current I corresponding to the ID number1It charges to the energy storage device of the electric car.
4. charging electric car method according to claim 3, which is characterized in that the predetermined coefficient k1Value range 1.5
Between~2.0.
5. charging electric car method according to claim 3, which is characterized in that whole charging time are≤30s.
6. a kind of charging electric car system characterized by comprising
Position acquisition module: for obtaining the running position of electric car；
Trial charging module: for when electric car contact charging rail, to the energy storage device of the electric car with predetermined current I1Charge T
Time, wherein T=T1+T2, and T1=k1×t1, wherein k1For predetermined coefficient, t1Charging rail is contacted to described for the electric car
The time required to electric car parking；
Capacity calculation module: it is used for according to the energy storage device in the T1The voltage value V at moment1With the energy storage device in institute
State T2The voltage value V at moment2Obtain the capacitance C of the energy storage device；
Quick charge module: it is used for according to the capacitance C to the energy storage device output adjustment electric current In；
Stop charging module: for when the electric car is detached from the charging rail or the energy storage device charging complete, described in stopping
Adjust electric current InOutput.
7. charging electric car system according to claim 6, which is characterized in that
The trial charging module and the quick charge module include to the unsteady flow list to energy storage device output electric current
Member；And/or
The capacity calculation module includes the voltage detection unit to detect the energy storage device voltage.
8. charging electric car system according to claim 6 or 7, which is characterized in that further include:
Electric car recognition unit, to identify the ID number of the electric car when electric car contact charging rail.
9. charging electric car system according to claim 8, which is characterized in that the electric car recognition unit includes being installed on institute
The label for stating electric car and the card reader to read the label.
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| CN103401287A (en) * | 2013-08-06 | 2013-11-20 | 南车株洲电力机车有限公司 | Intelligent charging system and method for energy accumulation type electric traction vehicle |
| WO2015016184A1 (en) * | 2013-07-31 | 2015-02-05 | 日本電気株式会社 | Power management system and power management method |
| CN104527448A (en) * | 2015-01-04 | 2015-04-22 | 南车株洲电力机车有限公司 | Voltage equilibrium control method and system |
| CN105161784A (en) * | 2015-10-21 | 2015-12-16 | 安徽江淮汽车股份有限公司 | Vehicle-mounted charging method and system |
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| CN101826745B (en) * | 2010-05-18 | 2014-06-04 | 郁百超 | Lithium ion power battery lossless charger |
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| WO2015016184A1 (en) * | 2013-07-31 | 2015-02-05 | 日本電気株式会社 | Power management system and power management method |
| CN103401287A (en) * | 2013-08-06 | 2013-11-20 | 南车株洲电力机车有限公司 | Intelligent charging system and method for energy accumulation type electric traction vehicle |
| CN104527448A (en) * | 2015-01-04 | 2015-04-22 | 南车株洲电力机车有限公司 | Voltage equilibrium control method and system |
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