CN106364362A - Tramcar charging method and system - Google Patents
Tramcar charging method and system Download PDFInfo
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- CN106364362A CN106364362A CN201611058148.6A CN201611058148A CN106364362A CN 106364362 A CN106364362 A CN 106364362A CN 201611058148 A CN201611058148 A CN 201611058148A CN 106364362 A CN106364362 A CN 106364362A
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- electric car
- energy storage
- charging
- storage device
- current
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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
-
- 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
-
- 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
Abstract
The invention discloses a tramcar charging method. The method comprises the steps that when a tramcar makes contact with a charging rail, an energy storage device of the tramcar is charged for time T on the basis of a preset current I1, wherein T=T1+T2, T1=k1*t1, k1 is a preset coefficient and is larger than or equal to 1, t1 is the time needed by the tramcar from making contact with the charging rail to stopping, and T2 is a preset time period; capacitance C of the energy storage device is obtained according to a voltage value V1 obtained at the beginning of the preset time period T2 and a voltage value V2 obtained at the end of the preset time period T2; a regulating current In is output to the energy storage device according to the capacitance C; when the tramcar gets away from the charging rail or energy storing device charging is completed, output of the regulating current In is stopped. The invention further discloses a tramcar charging system. According to the tramcar charging method, regulating can be conducted automatically according to the maximum charging current of the energy storing device, it is guaranteed that over-current charging cannot occur for the energy storing device, and reliable operation of the tramcar can be guaranteed to the maximum extent.
Description
Technical field
The present invention relates to track traffic charging technique field, particularly to a kind of charging electric car method.The invention still further relates to
A kind of charging electric car system.
Background technology
The energy storage device of modern energy storage type electric car often adopts multigroup parallel operation pattern, as the electrical source of power of electric car；
Electric car is charged by actively accessing charging system.
For ensureing the normal operation of trolley line, electric car often enter the station and be charged by station, and limits the charging interval.Normal
In the case of, multigroup energy storage device works simultaneously, and as a rule, and charging system charges with constant current according to pre-seting, permanent work(and
The charging modes such as constant voltage；So, if one of which or multigroup energy storage device break down it is impossible to during normal discharge and recharge,
Charging system is charged it is most likely that causing peace with constant current, the permanent charging modes such as work(or constant voltage still according to pre-seting to charge
Full accident.
Content of the invention
It is an object of the invention to provide a kind of charging electric car method, this charging electric car method can be with automatic decision 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
Plant charging electric car system.
For achieving the above object, the present invention provides a kind of charging electric car method, comprises the steps:
Obtain the run location of electric car；
When described electric car contacts charging rail, to the energy storage device of described electric car with predetermined current i1The charging t time, wherein, t
=t1+t2, t1=k1×t1, wherein, k1For predetermined coefficient, and k1>=1, t1Stop to described electric car for described electric car contact charging rail
Car required time；t2For preset time period；
According to described energy storage device in described preset time period t2Magnitude of voltage v when initial1With described energy storage device described
Preset time period t2Magnitude of voltage v during termination2Obtain the capacitance c of described energy storage device；
According to described capacitance c to described energy storage device output adjustment electric current in；
When described electric car departs from described charging rail or described energy storage device charging complete, stop described adjustment electric current inDefeated
Go out.
The charging electric car method providing with respect to above-mentioned background technology, the present invention, its core is, charges when electric car contacts
During rail, just start with predetermined current i1The charging t time；When electric car comes into contact with the t that charging rail stops to electric car1In time, with pre-
If electric current i1Charge；In t1In time, through Brake energy recovery, the electric current that therefore energy storage device is received is i to electric car1Add
The electric current of energy regenerating；T after electric car stops2In time, still with predetermined current i1Charge, and now electric car can exist
Certain power attenuation, the electric current that loss of electrical equipment etc., therefore energy storage device are received is i1Deduct loss part；
In addition, according to described energy storage device in preset time period t2Magnitude of voltage v when initial1With energy storage device in preset time period
t2Magnitude of voltage v during termination2Obtain the capacitance c of energy storage device, 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 electric car is charged；Using aforesaid way it can be determined that electricity
Working group's number of the power supply in the energy storage device of car, the maximum charging current according to energy storage device be automatically adjusted it is ensured that
Energy storage device will not occur the situation of current charge, and ensures that electric car is reliably runed to greatest extent.
Preferably, described according to described energy storage device in described t1The magnitude of voltage v in moment1With described energy storage device described
t2The magnitude of voltage v in moment2The step obtaining the capacitance c of described energy storage device specifically includes:
By formulaIt is calculated the capacitance c of described energy storage device,
Wherein, i2For described energy storage device in described t2Loss current in time.
Preferably, described according to described capacitance c to described energy storage device output adjustment electric current inStep specifically wrap
Include:
Work as 1/3cn≤ described capacitance c≤4/3cn, described adjustment electric current inFor one group of power supply in described energy storage device
Corresponding rated operational current；
Work as 5/3cn≤ described capacitance c≤7/3cn, described adjustment electric current inFor two groups of power supplys in described energy storage device
Corresponding rated operational current；
Work as 8/3cn≤ described capacitance c≤10/3cn, described adjustment electric current inFor three groups of electricity in described energy storage device
Rated operational current corresponding to source；
Wherein, above-mentioned cnThe meansigma methodss of the capacitance c of described energy storage device for calculating several times before.
Preferably, described contact charging rail when described electric car, to the energy storage device of described electric car with predetermined current i1Charging t
The step of time specifically includes:
When described electric car contacts charging rail, identify No. id of described electric car；
Predetermined current i according to corresponding to described No. id1The energy storage device of described electric car is charged.
Preferably, described predetermined coefficient k1Span between 1.5～2.0.
Preferably, whole charging intervals are≤30s.
The present invention also provides a kind of charging electric car system, comprising:
Position acquisition module: for obtaining the run location of electric car；
Trial charging module: for contacting charging rail when described electric car, to the energy storage device of described electric car with predetermined current i1
The charging t time, wherein, t=t1+t2, and t1=k1×t1, wherein, k1For predetermined coefficient, t1For described electric car contact charging rail extremely
Described electric car parking required time；
Capacity calculation module: for according to described energy storage device in described t1The magnitude of voltage v in moment1With described energy storage device
In described t2The magnitude of voltage v in moment2Obtain the capacitance c of described energy storage device；
Quick charge module: for according to described capacitance c to described energy storage device output adjustment electric current in；
Stop charging module: for departing from described charging rail or described energy storage device charging complete when described electric car, stop
Described adjustment electric current inOutput.
Preferably,
Described trial charging module and described quick charge module are all included in order to the change to described energy storage device output current
Stream unit；And/or
Described capacity calculation module includes detecting the voltage detection unit of described energy storage device voltage.
Preferably, also include:
Electric car recognition unit, in order to contact charging rail when described electric car, identifies No. id of described electric car.
Preferably, described electric car recognition unit includes being installed on the label of described electric car and in order to read described label
Card reader.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing providing obtains other accompanying drawings.
The flow chart of the charging electric car method that Fig. 1 is provided by the embodiment of the present invention；
A kind of flow chart of the specific embodiment of the charging electric car method that Fig. 2 is provided by the embodiment of the present invention；
The structured flowchart of the charging electric car system that Fig. 3 is provided by the embodiment of the present invention；
The connection figure of the charging electric car system that Fig. 4 is provided by the embodiment of the present invention and electric car.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work
Embodiment, broadly falls into the scope of protection of the invention.
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the accompanying drawings and be embodied as
The present invention is described in further detail for mode.
Refer to Fig. 1 to Fig. 4, the flow chart of the charging electric car method that Fig. 1 is provided by the embodiment of the present invention；Fig. 2 is this
A kind of flow chart of the specific embodiment of the charging electric car method that inventive embodiments are provided；Fig. 3 is embodiment of the present invention institute
The structured flowchart of the charging electric car system providing；The company of the charging electric car system that Fig. 4 is provided by the embodiment of the present invention and electric car
Map interlinking.
A kind of charging electric car method that the present invention provides, mainly comprises the steps:
S1, the run location of acquisition electric car；
S2, contact charging rail when described electric car, to the energy storage device of described electric car with predetermined current i1The charging t time, its
In, t=t1+t2, t1=k1×t1, wherein, k1For predetermined coefficient, and k1>=1, t1For described electric car contact charging rail to described electricity
Car parking required time；t2For preset time period；
S3, according to described energy storage device in described preset time period t2Magnitude of voltage v when initial1Exist with described energy storage device
Described preset time period t2Magnitude of voltage v during termination2Obtain the capacitance c of described energy storage device；
S4, according to described capacitance c to described energy storage device output adjustment electric current in；
S5, when described electric car departs from described charging rail or described energy storage device charging complete, stop described adjustment electric current in
Output.
The core of the present invention is, in step s2, once electric car comes into contact with charging rail, just proceeds by charging, and with
Predetermined current i1The charging t time；And t=t1+t2, and t1=k1×t1, wherein, k1For predetermined coefficient, t1Fill for the contact of described electric car
Electric rail is to described electric car parking required time；That is, coming into contact with charging rail until electric car stops this section of t from 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 i1Charge.
k1For predetermined coefficient, and k1>=1, the present invention is preferably by k1Span be arranged between 1.5～2.0, thus
Obtain relatively reasonable t1Time period；In t1In time period, due to electric car Reduced Speed Now and be finally stopped, electric car is through Brake Energy
Amount reclaims, and the electric current that therefore energy storage device is received is i1Electric current plus energy regenerating.
With t1Time period continuous t2In time period, because electric car has stopped, energy is not now had to be available for reclaiming, therefore
In t2The electric current that in time period, energy storage device is received is i1Deduct corresponding component (consuming parts such as trolley air conditioner) to be consumed
Electric energy, i.e. the electric current that energy storage device is received be i1Deduct loss part.
In step s3, detection energy storage device is in preset time period t respectively2Magnitude of voltage v when initial1Exist with energy storage device
Described preset time period t2Magnitude of voltage v during termination2；Preset time period t2Magnitude of voltage v when initial1Namely t1Time period is
Magnitude of voltage corresponding to the distal point moment；Energy storage device is in described preset time period t2Magnitude of voltage v during termination2I.e. t2Time period
The magnitude of voltage v corresponding to the end point moment2, and according to magnitude of voltage v1And magnitude of voltage v2Obtain the overall electricity of energy storage device
Hold capacity c.
After the overall capacitance capacity c knowing energy storage device, can be according to capacitance c to energy storage device output adjustment
Electric current in, such as step s4.
In step s5, when electric car departs from described charging rail or energy storage device charging complete, stop described adjustment electric current in
Output.As long as that is, electric car departs from charging rail, just complete charge process；If electric car is without departing from charging rail, but energy storage
When the electricity of device meets preset requirement, equally can complete charge process.Here preset requirement can be that energy storage device fills
The percentage ratio of electricity when electricity during full electricity or energy storage device are fully charged, or other, repeat no more herein.
Understand to find out by above-mentioned, once electric car comes into contact with charging rail, with predetermined current i1The charging t time, and preset
Electric current i1Current value often less, could be arranged to the rated operational current corresponding to one group of power supply in energy storage device,
Can be decided according to the actual requirements.
In addition, in t2After the end point moment (namely last moment of t time) of time period, according to t1
The magnitude of voltage v corresponding to the end point moment of time period1, and t2The magnitude of voltage corresponding to the end point moment of time period
v2Draw the capacitance c of energy storage device, thus adjusting charging current, to adjust electric current inExported, thus carrying out to electric car
Charge.
So, take full advantage of entering the station the time of electric car, and can be according to the electric capacity of current electric car energy storage device
Capacity c adjusts charging current it is ensured that energy storage device will not occur the situation of current charge, and ensures that electric car is reliable to greatest extent
Operation.
For step s3, the current capacitance c of the energy storage device in order to obtain electric car, can pass through formulaIt is calculated the capacitance c of described energy storage device, wherein, i2For described storage
Energy device is in described t2Loss current in time.
In t2In time period, loss current can be designated as i2, and the current electric capacity of energy storage device is obtained by above-mentioned formula
Capacity c；It is, of course, also possible to carry out subregion judgement by capacitance c is scaled voltage build-up rate, also can be by increasing electric car
Communication and between charging system, the normal work group number collecting electric car energy storage device replaces the calculating of charging system to judge, herein
Will not be described in great detail.
In above-mentioned steps s4, according to described capacitance c to described energy storage device output adjustment electric current inStep tool
Body includes:
Work as 1/3cn≤ described capacitance c≤4/3cn, described adjustment electric current inFor one group of power supply in described energy storage device
Corresponding rated operational current；
Work as 5/3cn≤ described capacitance c≤7/3cn, described adjustment electric current inFor two groups of power supplys in described energy storage device
Corresponding rated operational current；
Work as 8/3cn≤ described capacitance c≤10/3cn, described adjustment electric current inFor three groups of electricity in described energy storage device
Rated operational current corresponding to source；
Wherein, above-mentioned cnThe meansigma methodss of the capacitance c of described energy storage device for calculating several times before.
Specifically, after electric car operation certain time, the capacity of energy storage device can be decayed, when capacity attenuation 20%, energy storage
Device needs to be changed, and therefore the actual capacity of calculating and rated capacity have maximum 20% error, for ensureing energy storage dress
The judgement putting working group's number is unaffected, can be by the label of card reader and electric car, the energy storage dress of continuous record each column electric car
Put the capacity of calculating, and the reference frame in this, as single group energy storage device actual capacity；
Assume that n-th label id is detected is 1# electric car, calculates and judge that the energy storage device working group number of this electric car is 3
Group, the capacity of energy storing device of calculating for c and is preserved to 1# electric car c0, simultaneously by the energy storage calculating and judging 1# electric car for first 1 time
Device working group number is that calculating capacity of energy storing device c when 3 groups preserves to 1# electric car c1, by that analogy, record and preserve 1# electricity
Car 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, cnThe meansigma methodss of the capacitance c of described energy storage device for calculating several times before.
In addition, when described electric car contacts charging rail, to the energy storage device of described electric car with predetermined current i1During charging t
Between step specifically include:
When described electric car contacts charging rail, identify No. id of described electric car；
Predetermined current i according to corresponding to described No. id1The energy storage device of described electric car is charged.
The present invention will work as described electric car contact charging rail, to the energy storage device of described electric car with predetermined current i1During charging t
Between start to depart from described charging rail or described energy storage device charging complete to described when described electric car, stop described adjustment electric current in
Output till, whole charging intervals be≤30s.That is, to (t+ output adjustment electric current i of whole charging intervalsnTime) carry out
Limit, so disclosure satisfy that electric car during dynamic duty, and do not increase the long time and carry out energy storage device working group number
In the case of judgement, adjust charging current in time, electric car is charged.
A kind of flow process of the specific embodiment of the charging electric car method that Figure of description 2 is 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
Enter the station, i.e. judge whether electric car is come into contact with the charging rail in station, if so, carry out step s30, identify vehicle id, and according to
Predetermined current i corresponding to this id1It is charged, that is, carry out step s40.
In step s50, obtain t1The magnitude of voltage v corresponding to the end point moment of time period1；Persistently carry out when charging
t2After time, obtain t2The magnitude of voltage v corresponding to the end point moment of time period2；Carry out step s60, and according to above-mentioned electricity
The computing formula holding capacity c is calculated, and carries out step s70, calculates working group's number of electric car energy storage device；Assume energy storage dress
Put group number during normal work and be 3, then when calculate and judge to obtain can normal work group number as 3 when (step s80),
Carry out step s81；When calculate and judge to obtain can normal work group number as 2 when (step s90), carry out step s91；When
Calculate and judge to obtain can normal work group number as (step s100) when 1, carry out step s110.This is calculated
The capacitance c of energy storage device stored so that follow-up for cnCalculating, such as step s200.
In step s300, judge whether electric car departs from described charging rail, or energy storage device whether charging complete, such as above
Described；If so, then stop described adjustment electric current inOutput, that is, stop charging, such as step s400, and complete this charging
Process, such as step s500.
Below charging electric car system provided in an embodiment of the present invention is introduced, control system described below is with above
Described method can mutually compare.
The charging electric car system that the present invention provides, mainly includes such as lower module, as shown in Figure of description 3.
Position acquisition module 100: for obtaining the run location of electric car；
Trial charging module 200: for contacting charging rail when described electric car, to the energy storage device of described electric car with predetermined current
i1The charging t time, wherein, t=t1+t2, and t1=k1×t1, wherein, k1For predetermined coefficient, t1Contact charging rail for described electric car
To described electric car parking required time；
Capacity calculation module 300: for according to described energy storage device in described t1The magnitude of voltage v in moment1With described energy storage dress
Put in described t2The magnitude of voltage v in moment2Obtain the capacitance c of described energy storage device；
Quick charge module 400: for according to described capacitance c to described energy storage device output adjustment electric current in；
Stop charging module 500: for departing from described charging rail or described energy storage device charging complete when described electric car, stop
Only described adjustment electric current inOutput.
Preferably, described trial charging module and described quick charge module are all included in order to export electricity to described energy storage device
The current transforming unit of stream；And/or
Described capacity calculation module includes detecting the voltage detection unit of described energy storage device voltage.
Preferably, also include:
Electric car recognition unit, in order to contact charging rail when described electric car, identifies No. id of described electric car.
Preferably, described electric car recognition unit includes being installed on the label of described electric car and in order to read described 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 device 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 car is used for identifying for card reader 2, and the accumulation power supply 4 of electric car may 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.There is on label 3 No. id of electric car, and every string electric car has different id
Number, so that card reader 2 identifies.
It should be noted that each embodiment is described by the way of going forward one by one in description, each embodiment stresses
Be all difference with other embodiment, between each embodiment similar portion mutually referring to.Public for embodiment
For the device opened, because it corresponds to the method disclosed in Example, so description is relatively simple, referring to method in place of correlation
Part illustrates.
Professional further appreciates that, in conjunction with the unit of each example of the embodiments described herein description
And algorithm steps, can with electronic hardware, computer software or the two be implemented in combination in, in order to clearly demonstrate hardware and
The interchangeability of software, generally describes composition and the step of each example in the above description according to function.These
Function to be executed in the way of hardware or software actually, the application-specific depending on technical scheme and design constraint.Specially
Industry personnel can use different methods to each specific application realize described function, but this realization should not be recognized
For beyond the scope of this invention.
Above charging electric car method provided by the present invention and its system are described in detail.Tool used herein
Body example is set forth to the principle of the present invention and embodiment, and the explanation of above example is only intended to help and understands this
Bright method and its core concept.It should be pointed out that for those skilled in the art, without departing from the present invention
On the premise of principle, the present invention can also be carried out with some improvement and modify, these improve and modification also falls into right of the present invention
In the protection domain requiring.
Claims (10)
1. a kind of charging electric car method is it is characterised in that comprise the steps:
Obtain the run location of electric car；
When described electric car contacts charging rail, to the energy storage device of described electric car with predetermined current i1The charging t time, wherein, t=t1+
t2, t1=k1×t1, wherein, k1For predetermined coefficient, and k1>=1, t1For described electric car contact charging rail to described electric car parking institute
Take time；t2For preset time period；
According to described energy storage device in described preset time period t2Magnitude of voltage v when initial1With described energy storage device described default
Time period t2Magnitude of voltage v during termination2Obtain the capacitance c of described energy storage device；
According to described capacitance c to described energy storage device output adjustment electric current in；
When described electric car departs from described charging rail or described energy storage device charging complete, stop described adjustment electric current inOutput.
2. charging electric car method according to claim 1 it is characterised in that described according to described energy storage device in described t1
The magnitude of voltage v in moment1With described energy storage device in described t2The magnitude of voltage v in moment2Obtain the capacitance c of described energy storage device
Step specifically include:
By formulaIt is calculated the capacitance c of described energy storage device, wherein,
t2For described Preset Time, i1For described predetermined current, i2For described energy storage device in described t2Loss current in time.
3. charging electric car method according to claim 1 it is characterised in that described according to described capacitance c to described
Energy storage device output adjustment electric current inStep specifically include:
Work as 1/3cn≤ described capacitance c≤4/3cn, described adjustment electric current inRight for one group of power supply in described energy storage device
The rated operational current answered；
Work as 5/3cn≤ described capacitance c≤7/3cn, described adjustment electric current inRight for two groups of power supplys in described energy storage device
The rated operational current answered；
Work as 8/3cn≤ described capacitance c≤10/3cn, described adjustment electric current inFor three groups of power supply institutes in described energy storage device
Corresponding rated operational current；
Wherein, above-mentioned cnThe meansigma methodss of the capacitance c of described energy storage device for calculating several times before.
4. the charging electric car method according to claims 1 to 3 any one is it is characterised in that described connect when described electric car
Tactile charging rail, to the energy storage device of described electric car with predetermined current i1The step of charging t time specifically includes:
When described electric car contacts charging rail, identify No. id of described electric car；
Predetermined current i according to corresponding to described No. id1The energy storage device of described electric car is charged.
5. charging electric car method according to claim 4 is it is characterised in that described predetermined coefficient k1Span 1.5
Between～2.0.
6. charging electric car method according to claim 4 is it is characterised in that whole charging interval is≤30s.
7. a kind of charging electric car system is it is characterised in that include:
Position acquisition module: for obtaining the run location of electric car；
Trial charging module: for contacting charging rail when described electric car, to the energy storage device of described electric car with predetermined current i1Charging t
Time, wherein, t=t1+t2, and t1=k1×t1, wherein, k1For predetermined coefficient, t1Extremely described for described electric car contact charging rail
Electric car parking required time；
Capacity calculation module: for according to described energy storage device in described t1The magnitude of voltage v in moment1With described energy storage device in institute
State t2The magnitude of voltage v in moment2Obtain the capacitance c of described energy storage device；
Quick charge module: for according to described capacitance c to described energy storage device output adjustment electric current in；
Stop charging module: for departing from described charging rail or described energy storage device charging complete when described electric car, stop described
Adjustment electric current inOutput.
8. charging electric car system according to claim 7 it is characterised in that
Described trial charging module and described quick charge module are all included in order to the unsteady flow list to described energy storage device output current
Unit；And/or
Described capacity calculation module includes detecting the voltage detection unit of described energy storage device voltage.
9. the charging electric car system according to claim 7 or 8 is it is characterised in that also include:
Electric car recognition unit, in order to contact charging rail when described electric car, identifies No. id of described electric car.
10. charging electric car system according to claim 9 is it is characterised in that described electric car recognition unit includes being installed on
The label of described electric car and the card reader in order to read described label.
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| CN112765149A (en) * | 2020-12-03 | 2021-05-07 | 万克能源科技有限公司 | System and method for calculating capacity of energy storage system |
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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 |
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