CN103715725A - Electric vehicle charging system and method - Google Patents
Electric vehicle charging system and method Download PDFInfo
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- CN103715725A CN103715725A CN201210376088.8A CN201210376088A CN103715725A CN 103715725 A CN103715725 A CN 103715725A CN 201210376088 A CN201210376088 A CN 201210376088A CN 103715725 A CN103715725 A CN 103715725A
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Abstract
Provided is a charging system for electric vehicles. The charging system comprises a travel plan creating unit configured to create a travel plan based on the travel time and travel distance, a charging scheme computing unit configured to compute a charging scheme based on the travel plan, a monitoring unit configured to monitor whether a deviation occurs between the actual travel and the travel plan, and an analyzing unit configured to analyze whether the deviation influences the nearest charging point in the charging scheme if the deviation occurs between the actual travel and the travel plan, and enable the travel plan creating unit to recreate a travel plan and the charging scheme computing unit to re-compute a charging scheme based on the recreated travel plan if the deviation influences the nearest charging point in the charging scheme. A corresponding charging method is further provided. By the adoption of the system and the method, the travel plan is simplified, the charging scheme is enabled to be more personalized, frequent data update can be avoided, and computing resources are saved.
Description
Technical field
The application relates to field of traffic, is specifically related to a kind of charging system for electric motor car and method.
Background technology
Be accompanied by the progress of new energy technology, the technology relevant with electric motor car continually developed.Charging problem is a key problem of electric motor car.The common way of prior art is: reminding user charging when the battery electric quantity of electric motor car is not enough, and help near the charging station of user searching; Whether or it is sufficient user, before travel to calculate electric weight, if need charging in way, calculate the charging route (for example tell user to go on a journey in way and to which charging station charge ratio save time, to which charging station detour apart from fewer, etc.) of some optimizations.Yet these prior aries are all that the information of only considering current trip decides and how to charge, and are all chargings in trip way, do not make full use of vehicle and charge in the time of staying of destination.
In addition, some existing charging technique need to be known user's detailed plan of travel, comprises starting point, terminal and the corresponding time of each trip.Then, based on this plan of travel, obtain charging scheme.In user's trip process, need the actual trip of real-time supervisory user whether consistent with initial plan.If find that user's actual trip changes (not being inconsistent such as starting point, terminal or time etc. and original plan), needs to upgrade plan of travel and charging scheme.
Visible, existing charging technique needs detailed plan of travel the actual trip of strict monitoring vehicle, so need to be with user continually alternately to determine related data.In addition, owing to formulating plan of travel, need accurate starting point and terminal, but for user, be sometimes difficult to provide in advance concrete place (such as user After Hours can first go to restaurant every day, have a meal, but the place in restaurant be not fix and also often before setting out just decision to go to which restaurant).In addition, in the monitor procedure of existing charging technique, as long as find user's plan of travel and be not just inconsistent in the original plan to upgrade charging scheme, this causes the frequent updating of data.Yet in practice, the change of some behavior can't affect charging scheme, so in fact without upgrading charging scheme.
In addition, charging room topic can be followed the whole process that electric motor car is used.If can consider the following long-term travel behaviour of user, thereby determine each charging interval, charging modes etc., will bring the income of global optimum to user.For example, in the face of time-of-use tariffs policy, consider the trip of following a period of time, in the time of the charging interval can being arranged in to low ebb electricity price as far as possible.And when peak electricity tariff and necessary charging, can consider only to fill part electricity, will greatly reduce user's charging expense like this.In addition, the charging interval of electric motor car is longer.Utilize existing charging technique, trickle charge will spend about eight hours, fills soon also and will spend half an hour.For a lot of users, the electric motor car most of the time is all in dead ship condition, if can be according to user's plan of travel, charging is arranged in time of staying of destination the charging times greatly reducing in trip process, this will save a large amount of unnecessary charging stand-by period for user as far as possible.
Therefore, need a kind of charging system of electric powercar and method, at least a portion problem in can overcoming the above problems.
Summary of the invention
According to the application, first generate user's plan of travel, its content comprises departure time and the trip distance of each trip.Based on this plan, generate charging scheme.Charging scheme has provided each charging opportunity that vehicle should charge in future, i.e. charge point.The trip of supervisory user is upgraded plan of travel and is recalculated charging scheme when finding that user's agenda and given plan have deviation and have influence on nearest charge point.In this application, charge point refers to the charging opportunity that electric motor car charges.Particularly, in electric motor car is travelling way while charging, charging opportunity can be to charge when the residue operating range of electric motor car is less than or equal to charge threshold.When electric motor car in destination (or destination periphery) when charging, charging can be charging while meeting the required duration of charging within the time of staying of this destination (, start charging interval be greater than the required time that charges with the difference of leaving the time on this ground) opportunity.The information relevant with charge point can comprise: in charge point the charge mode of required time, charging, the price of charging, etc.
According to an aspect of the present invention, provide a kind of charging system for electric motor car, having comprised: plan of travel creating unit, has been configured to create plan of travel based on travel time and trip distance; Charging scheme computing unit, is configured to calculate charging scheme based on plan of travel, and described charging scheme comprises the information relevant with charge point; Monitoring unit, is configured to monitor actual trip and plan of travel whether deviation occurs; And analytic unit, be configured to: whether if actual trip and plan of travel generation deviation, analyzing described deviation affects charge point nearest in charging scheme; If nearest charge point in described deviation effects charging scheme, makes described plan of travel creating unit re-create plan of travel, and make the plan of travel of described charging scheme computing unit based on re-creating recalculate charging scheme.
Preferably, described plan of travel creating unit is configured to: based on historical travel time and trip distance or travel time and trip distance based on user's input, create plan of travel.
Preferably, described charging scheme computing unit is configured to calculate optimum charging scheme based on plan of travel, and described optimum charging scheme meets following at least one: in way the charging interval the shortest, charge best in quality and charging price is minimum.
Preferably, described analytic unit is configured to: if the predetermined trip distance in actual trip distance or time and plan of travel or the deviation of time are greater than threshold value, make described plan of travel creating unit re-create plan of travel, and make the plan of travel of described charging scheme computing unit based on re-creating recalculate charging scheme.
Preferably, described analytic unit is configured to: if other charge point of the nearest charge point of appointment are charged in being different from charging scheme, make described plan of travel creating unit re-create plan of travel, and make the plan of travel of described charging scheme computing unit based on re-creating recalculate charging scheme.
Preferably, described charging scheme computing unit is configured to: based on plan of travel, for each trip cost, calculate corresponding optimum charging scheme, described trip cost comprises in way, charge stand-by period, charging quality and charging price.
Preferably, described analytic unit is configured to: if other charge point of the nearest charge point of appointment are charged in being different from a plurality of charging schemes, make described plan of travel creating unit re-create plan of travel, and make the plan of travel of described charging scheme computing unit based on re-creating recalculate corresponding a plurality of optimum charging scheme.
Preferably, described analytic unit is configured to: if nearest charge point in actual trip and plan of travel generation deviation and all charging schemes of described deviation effects, make described plan of travel creating unit re-create plan of travel, and make the plan of travel of described charging scheme computing unit based on re-creating recalculate corresponding a plurality of optimum charging scheme.
Preferably, described charging system also comprises: user's selective reception unit, is configured to receive user to for calculating the selection of the trip cost of charging scheme; Wherein, described charging scheme computing unit is configured to: the trip cost based on plan of travel and user's selection is calculated charging scheme.
Preferably, described user's selective reception unit is also configured to: receive the selection of user to one or more charging scheme in a plurality of charging schemes; And described monitoring unit is also configured to: one or more charging scheme that supervisory user is selected.
According to a further aspect in the invention, provide a kind of charging method for electric motor car, having comprised: created plan of travel based on travel time and trip distance; Based on plan of travel, calculate charging scheme, described charging scheme comprises the information relevant with charge point; Whether the actual trip of monitoring there is deviation with plan of travel; And if actual trip and plan of travel generation deviation, whether analyze described deviation affects charge point nearest in charging scheme; If nearest charge point in described deviation effects charging scheme, re-creates plan of travel, and charging scheme is recalculated in the plan of travel based on re-creating.
Preferably, based on historical travel time and trip distance or travel time and trip distance based on user's input, create plan of travel.
Preferably, based on plan of travel, calculate optimum charging scheme, described optimum charging scheme meets following at least one: in way the charging interval the shortest, charge best in quality and charging price is minimum.
Preferably, if the predetermined trip distance in actual trip distance or time and plan of travel or the deviation of time are greater than threshold value, re-create plan of travel, and charging scheme is recalculated in the plan of travel based on re-creating.
Preferably, if other charge point of the nearest charge point of appointment are charged in being different from charging scheme, re-create plan of travel, and charging scheme is recalculated in the plan of travel based on re-creating.
Preferably, based on plan of travel, for each trip cost, calculate corresponding optimum charging scheme, described trip cost comprises in way, charge stand-by period, charging quality and charging price.
Preferably, if other charge point of the nearest charge point of appointment are charged in being different from a plurality of charging schemes, re-create plan of travel, and corresponding a plurality of optimum charging scheme is recalculated in the plan of travel based on re-creating.
Preferably, if nearest charge point in actual trip and plan of travel generation deviation and all charging schemes of described deviation effects re-create plan of travel, and corresponding a plurality of optimum charging scheme is recalculated in the plan of travel based on re-creating.
Preferably, described charging method also comprises: receive user to for calculating the selection of the trip cost of charging scheme; And the trip cost based on plan of travel and user's selection is calculated charging scheme.
Preferably, described charging method also comprises: receive the selection of user to one or more charging scheme in a plurality of charging schemes; And one or more charging scheme of supervisory user selection.
According to the application, when formulating plan of travel, only need following departure time and distance, without knowing concrete starting point and terminal, thereby make plan of travel become simple.For example, by considering a plurality of factors relevant with plan of travel (distance of each trip, in the time of staying of each point, the electricity price in the corresponding moment, charging modes, charging interval etc.), obtain charging scheme, thereby make charging scheme more personalized.In addition, only have when actual trip changes and affects nearest charge point and just upgrade plan of travel and charging scheme, avoided Data Update frequently.
Accompanying drawing explanation
By detailed description with the accompanying drawing below, above-mentioned and further feature of the present invention will become more apparent, wherein:
Fig. 1 shows the block diagram of charging system according to an embodiment of the invention.
Fig. 2 shows the block diagram of charging system in accordance with another embodiment of the present invention.
Fig. 3 shows the flow chart of charging method according to an embodiment of the invention.
Fig. 4 shows the schematic diagram of application scenarios according to an embodiment of the invention.
Embodiment
Below, the description to specific embodiments of the invention in conjunction with the drawings, principle of the present invention and realization will become obvious.It should be noted in the discussion above that the present invention should not be limited to specific embodiment hereinafter described.In addition, for for simplicity, omitted the detailed description of known technology unrelated to the invention.
the first embodiment
Fig. 1 shows the block diagram of charging system according to an embodiment of the invention.As shown in Figure 1, the charging system in the present embodiment 10 comprises plan of travel creating unit 110, charging scheme computing unit 120, monitoring unit 130 and analytic unit 140.
Plan of travel creating unit 110 creates plan of travel based on travel time and distance.Plan of travel can be user following one day or the even plan of travel of longer time of some skies, and it can comprise time and the distance of each trip in user future.
Table 1 has below provided an example of the plan of travel being created by plan of travel creating unit 110:
Table 1
Table 1 is comprised of a series of row, and each row comprises the departure time of once trip and the trip distance between the starting point of this trip.In addition, each row also comprises the time of advent and the time of staying, and wherein the time of advent and the time of staying can be based on departure time and trip distance by calculating.For example, the time of staying can calculate according to following exemplary method:
Suppose that Stop_Time (n) represents that user is in the time of staying of the destination of the n time trip:
Stop_Time(n)＝TimDiff(End_Time(n)，Start_Time(n+1))
Wherein, TimeDiff (T, T ') represents from time T to T ' time difference, the End_Time time of advent (n) obtains based on departure time Start_Time (n) estimation, n+1 represents the n time trip next time of going on a journey.
Plan of travel creating unit 110 can be based on user historical trip data, the mode by prediction creates plan of travel.For example, in a period of time in the past, find user 7:00 in the morning left and right Cong Jiadao company of will driving on every Mondays, distance is 15km.Then near Che company, dock to 6:00 in the afternoon body-building shop of driving again, etc.According to this historical data, the trip that can predict user's next Monday is also probably so so, the Cong Jiadao company of will driving about 7:00 morning, and distance is 15km....
In addition, plan of travel creating unit 110 also can the craft input based on user create plan of travel.Alternatively, plan of travel creating unit 110 can also provide the plan of travel of prediction, then by user, is confirmed and revises partial content.For example, when user know starting point title but do not know apart from time, can input concrete starting point, by plan of travel creating unit 110, automatically calculate row distance.In addition, when user only knows trip distance, but also during uncertain concrete starting point, also can directly input trip distance.
Charging scheme is calculated in the plan of travel that charging scheme computing unit 120 creates based on plan of travel creating unit 110.Particularly, charging scheme computing unit 120 can look to the future the distance of trip, in factors such as time of staying of each destination and electricity prices, again in conjunction with user to charging cost demand, from overall situation consideration, provide the percentage of best charge point, charging and the time spending and price etc., thereby calculate the charging scheme (optimum charging scheme) of charging cost optimum.For example, this optimum charging scheme meets following at least one: in way the charging interval the shortest, charge best in quality and charging price is minimum.In this application, the top-quality implication of charging is the useful life that is conducive to extend battery most.For example, once battery be full of and for battery charges but is not all full of to compare, be more conducive to extend the life of a cell continually.In addition, charging modes comprises and filling soon and trickle charge: conventionally, trickle charge is wanted can be full of electricity in about 8 hours, and fill soon half an hour, can be charged to 80% of battery electric quantity.Those skilled in the art will appreciate that and adopt the mode of trickle charge than adopting the mode of filling to be soon more conducive to extend the life of a cell.
Can obtain according to different optimisation strategy different charging schemes.According to an embodiment, wish to utilize as far as possible vehicle in time of staying of destination as the charging interval, thereby reduce the time spending because of charging.When vehicle is when the time of staying of certain destination is greater than the required minimum charging interval, can utilize in the time of staying of destination charge (that is, charge point is in the destination of trip).When the distance of certain trip is greater than while being full of electric course continuation mileage, need to charging in trip way (that is, charge point is not in the destination of trip).
Table 2 has below provided an example of the charging scheme being calculated by charging scheme computing unit 120:
Table 2
Whether the actual trip of monitoring unit 130 monitoring there is deviation with plan of travel.For example, monitoring unit 130 can obtain travel time and the position of the actual trip of user's vehicle in real time, and relatively whether user's actual trip is consistent with plan of travel in real time.If consistent, monitoring unit 130 continues monitoring; If inconsistent, illustrate that user's actual trip and plan of travel has deviation.
If the deviation of existence, whether analytic unit 140 is analyzed this deviation affects charge point nearest in charging scheme.If do not affect this charge point, monitoring unit 130 continues the trip of supervisory user.Otherwise if having influence on this charge point, analytic unit 140 makes plan of travel creating unit 110 re-create plan of travel, and make the plan of travel of charging scheme computing unit 120 based on re-creating recalculate charging scheme.
According to an embodiment, whether analytic unit 140 is analyzed this deviation as follows affects charge point nearest in charging scheme:
(1) when user's actual trip distance and plan of travel have deviation
If the deviation of the predetermined trip distance in actual trip distance and plan of travel is greater than threshold value (Thd), will affect nearest charge point so.Otherwise, although trip distance changes to some extent, as long as the time of staying of the destination at this charge point place is unaffected, think that this deviation does not affect nearest charge point.
According to an example, suppose CurD
realrepresent the trip distance that current trip is actual, CurD
planrepresent the trip predetermined trip distance of this trip in the works.If CurD
real=CurD
plan, the predetermined trip distance zero deflection in actual trip distance and plan of travel is described.Otherwise, illustrate that the predetermined trip distance in actual trip distance and plan of travel has deviation.If the absolute value of this deviation | CurD
real-CurD
plan| be greater than threshold value Thd, illustrate that this deviation will affect nearest charge point.Wherein, the value of threshold value Thd can be:
(1) work as CurD
real> CurD
plantime, Thd=RemD
plan.Wherein, RemD
planbe illustrated in the residue operating range while travelling to nearest charge point in plan of travel.This condition represents that actual trip distance is greater than predetermined trip distance, and this difference makes the residue operating range of vehicle be not enough to arrive nearest charge point.
(2) work as CurD
real< CurD
plantime, Thd=(RemD
plan+ NextD
plan).Wherein, NextD
planrepresent the plan trip distance of trip for the first time after nearest charge point.This condition represents that actual trip distance is less than predetermined trip distance, and this difference can make after nearest charge point moves backward to next time trip.
For example, suppose that starting point and the terminal of certain trip travel 1 is respectively L1 and L2, nearest charge point A is the terminal at another trip travel 2.Further the actual range of hypothesis travel1 is 30km, and in plan of travel, the trip distance from L1 to L2 is that 20km and the trip distance from L2 to L3 are 18km, to the residue operating range of nearest charge point A, is 5km.Because the actual trip distance of travel1 is greater than plan trip distance, and deviation is 30-20=10km, and this departs from and is greater than threshold value 5km.Therefore the variation of analytic unit 140 these travel behaviours of judgement is bound to affect nearest charge point A.
(2) when actual travel time of user and plan of travel have deviation
If the deviation of the predetermined travel time in actual travel time and plan of travel is greater than threshold value (Thd), will affect nearest charge point so.Otherwise, in user's actual trip distance, do not exceed under the prerequisite of maximum course continuation mileage, although the travel time changes to some extent, think that this deviation does not affect nearest charge point.
According to an example, suppose CurT
realrepresent that this trip arrives the real time of destination, CurT
planthis trip in the works that represent to go on a journey arrives the predetermined travel time of destination.If CurT
real=CurT
plan, the predetermined travel time zero deflection in actual travel time and plan of travel is described.Otherwise, illustrate that there is deviation the predetermined travel time in actual travel time and plan of travel.Based on CurT
realthe time that predictive user arrives nearest charge point (is NCPT
real).NCPT
planbe illustrated in the time that arrives nearest charge point in plan of travel.Work as NCPT
realearly than NCPT
plantime, can not cause in the time of staying of this charge point and reduce, so do not affect this charge point.Work as NCPT
realbe later than NCPT
plantime, can cause in the time of staying of this charge point and reduce, judge that this departs from (NCPT
real-NCPT
plan) whether be greater than threshold value (Thd), Thd=NCPSTime-NCPChTime wherein, NCPSTime is illustrated in the plan time of staying of nearest charge point, and NCPChTime is illustrated in nearest charge point and charges the required time.If (NCPT
real-NCPT
plan) > Thd, illustrate that charging interval in nearest charge point is by deficiency, so depart from can the nearest charge point of impact for this.Otherwise, although can reduce in the time of staying of charge point, do not affect charging, this departs from does not affect nearest charge point.
For example, suppose that the starting point of certain trip and terminal are respectively L4, L5, nearest charge point B is positioned at the terminal of this trip.Further hypothesis is 12:00 in the actual time of departure of L4, and departure time in plan of travel is that 12:40 and the time of advent are 14:00.Actual time of departure based on vehicle at L4, in conjunction with operating range and transport information etc., can dope vehicle is 13:00 in the time of advent of L5.Because time of advent of the expectation of L5 is early than the time of advent in plan of travel, this shows that vehicle can arrive destination L5 in advance, so 140 these times of judgement of analytic unit change, can not affect nearest charge point B.
(3) no matter whether the trip distance of user's reality and time change, as long as user's vehicle is not in the charge point charging of appointment, thinks and can affect nearest charge point.
When nearest charge point is affected, analytic unit 140 makes plan of travel creating unit 110 re-create plan of travel, and makes the plan of travel of charging scheme computing unit 120 based on re-creating recalculate charging scheme.
According to the present embodiment, when formulating plan of travel, only need following departure time and distance, without knowing concrete starting point and terminal, thereby make the formulation of plan of travel become simple.For example, by considering a plurality of factors in plan of travel (distance of each trip, in the time of staying of each point, the electricity price in the corresponding moment, charging modes, charging interval etc.), obtain charging scheme, make charging scheme more personalized.In addition, only have when actual trip changes and affects nearest charge point and just upgrade plan of travel and charging scheme, avoided Data Update frequently.
the second embodiment
Fig. 2 shows the block diagram of charging system in accordance with another embodiment of the present invention.As shown in Figure 2, the charging system in the present embodiment 20 comprises plan of travel creating unit 210, charging scheme computing unit 220, monitoring unit 230, analytic unit 240 and user's selective reception unit 250.
Be similar to the plan of travel creating unit 110 in the first embodiment, the historical trip data that the plan of travel creating unit 210 in the present embodiment can be based on user, the mode by prediction creates plan of travel.In addition, plan of travel creating unit 210 also can the craft input based on user create plan of travel.Alternatively, plan of travel creating unit 210 can also provide the plan of travel of prediction, then by user, is confirmed and revises partial content.
Charging scheme computing unit 220 can, based on plan of travel, calculate corresponding optimum charging scheme for each trip cost.Preferably, trip cost comprises charge stand-by period, charging modes and charging price in way, etc.
From different in the first embodiment, charging scheme computing unit 220 can also the trip cost based on plan of travel and user's selection calculate charging scheme.Particularly, user's selective reception unit 250 can receive user to for example, for calculating the selection of the trip cost (way charge stand-by period, charging modes or charging price) of charging scheme, and the trip cost of then selecting based on selected plan of travel and user is calculated corresponding charging scheme.
Correspondingly, user's selective reception unit 250 can receive the selection of user to one or more charging scheme in a plurality of charging schemes, thus the monitoring unit 230 actual trip of supervisory user simultaneously and one or more charging schemes that user selects.Monitor a plurality of charging schemes and mean that user has a plurality of alternative charge point in current course continuation mileage, different charge point can make different charging cost optimizations, and user can determine to select specific charge point on the way.
In addition, in user's trip, the charge point that analytic unit 240 can be based in a plurality of charging schemes, the charge point that reminding user is nearest and last charge point in current course continuation mileage, and the corresponding cost of these charge point.Last charge point in current course continuation mileage means that this is that user can make the optimized last charger meeting of certain charging cost.
When finding that user charges in certain charge point, analytic unit 240 makes plan of travel creating unit 210 re-create plan of travel, and makes the plan of travel of charging scheme computing unit 220 based on re-creating recalculate corresponding a plurality of charging scheme.
For example, following table 3 has provided example of a plurality of charging schemes that charging scheme computing unit 220 calculates.
Table 3
If user charge but actual distance of going on a journey or time and original plan of travel have deviation in other charge point, analytic unit 240 judges whether this deviation affects all charge point in current course continuation mileage.If these charge point are all affected, upgrade plan of travel and charging scheme, otherwise which charge point of reminding user become unavailable, and continue the remaining charge point of monitoring.
For example, suppose monitoring unit 230 3 charging scheme 1-3 shown in monitoring form 3 simultaneously.Along with travelling of vehicle, the next charge point that analytic unit 240 can reminding user will arrive and last charge point in current course continuation mileage.Suppose that charge point C is last charge point in current course continuation mileage in this example.
If user charges when through charge point A, need so to upgrade charging scheme, otherwise continue the trip of supervisory user.In the situation that actual trip distance is greater than the trip distance in plan of travel:
--if affect charge point B, but do not affect charge point C, reminding user charge point B is unavailable so, continues monitoring charge point C.
--if affect charge point B and C, charging system can re-create plan of travel and calculate new charging scheme so.
In the present embodiment, can be according to the different multiple charging schemes of trip cost creation, such as cheapest charging scheme, the top-quality charging scheme that charges, etc.User can select wherein one or more charging schemes according to the hobby of oneself.When user selects a plurality of charging scheme, which charge point user can determine to select from a plurality of schemes in reality trip.
Fig. 3 shows the flow chart of charging method according to an embodiment of the invention.As shown in Figure 3, method 30 starts at step S310 place to carry out.
At step S320 place, create plan of travel based on travel time and trip distance.Plan of travel can be user following one day or the even plan of travel of longer time of some skies, and it can comprise time and the distance of each trip in user future.Historical trip data that can be based on user the mode by prediction create plan of travel, also can the craft input based on user create plan of travel.Alternatively, can also provide the plan of travel of prediction, then by user, confirmed and revise.An example of the trip planning generating is as shown in table 1 above.
At step S330 place, based on plan of travel, calculate charging scheme, this charging scheme comprises the information relevant with charge point.For example, can look to the future the distance of trip, in factors such as time of staying of each destination and electricity prices, again in conjunction with user to charging cost demand, from overall situation consideration, provide the percentage of best charge point, charging and the time spending and price etc., thereby calculate the charging scheme (optimum charging scheme) of charging cost optimum.Preferably, optimum charging scheme meets following at least one: in way the charging interval the shortest, charge best in quality and charging price is minimum.An example of the charging scheme generating is as shown in table 2 above.
At step S340 place, whether the actual trip of monitoring there is deviation with plan of travel.For example, can obtain in real time travel time and the position of the actual trip of user's vehicle, relatively whether user's actual trip is consistent with plan of travel in real time.If there is not deviation ("No" at step S340 place), method 30 is proceeded monitoring.
If actual trip and plan of travel generation deviation ("Yes" at step S340 place), nearest charge point in whether step S350 place this deviation of analysis affects charging scheme.As described above, can be by determining course continuation mileage, the time of advent or noly having carried out charging in charge point and carry out this analysis.
If do not affect charge point nearest in charging scheme ("No" at step S350 place), method 30 is got back to the continuation of step S340 place and is carried out monitoring.
If have influence on charge point nearest in charging scheme ("Yes" at step S350 place), re-create plan of travel at step S360 place, and charging scheme recalculated in the plan of travel based on re-creating.
Finally, method 30 finishes at step S370 place.
Alternatively, method 30 can also, based on plan of travel, be calculated corresponding optimum charging scheme for each trip cost, and monitor a plurality of charging schemes simultaneously.In addition, can also the trip cost based on plan of travel and user's selection calculate charging scheme.Particularly, first method 30 can receive user to for example, for calculating the selection of the trip cost (way charge stand-by period, charging modes or charging price) of charging scheme, and the trip cost of then selecting based on selected plan of travel and user is calculated corresponding charging scheme (in step S330).Correspondingly, one or more charging schemes (in step S340) that the actual trip of supervisory user and user select simultaneously.Monitor a plurality of charging schemes and mean that user has a plurality of alternative charge point in current course continuation mileage, different charge point can make different charging cost optimizations, and user can determine to select specific charge point on the way.An example of a plurality of charging schemes is as shown in table 2 above.
Fig. 4 shows the schematic diagram of application scenarios according to an embodiment of the invention.For schematic object, three user 401-1,401-2 and 401-3, network 402 and charging system 403 have been shown in Fig. 4 example.Yet those skilled in the art are appreciated that after the instruction of having read specification user's number is not limited to three, but can be less than three or be greater than three.
In reality trip, each in user 401-1,401-2 and 401-3 can be by car-mounted device to network 402 transmission data.Particularly, these data can comprise the data relevant with plan of travel, such as the beginning or end of travel time, trip, trip distance etc.In addition, car-mounted device can also gather the data for example, with user's trip (user's current location and time) relevant and transmit to network 402.Preferably, car-mounted device also possesses the unit and the unit that shows charging scheme of selecting charging scheme for user.
Network 402 can be wireless network, for example the Internet or satellite communication network.It will be understood by those skilled in the art that network 402 is not limited to this, can also be other multiple wireless networks that are suitable for transmitting data between user and charging system.
Charging system 403 can by example as shown in Figure 1 the charging system 20 shown in charging system 10 or Fig. 2 realize.In actual applications, charging system 403 receives plan of travel data and the real-time monitor data from user 401-1,401-2 and 401-3 via network 402, calculates thus applicable charging scheme and each user's trip and corresponding charging scheme are monitored.In addition the function that, it will be understood by those skilled in the art that charging system 403 also can for example, be realized by a plurality of entities (server).
By adopting the application's charging system and method, can simplify the formulation process of plan of travel, make charging scheme more personalized, and can avoid Data Update frequently, thereby saved computational resource.
Should be appreciated that, the above embodiment of the present invention can realize by both combinations of software, hardware or software and hardware.For example, charging system in above-described embodiment and inner various assemblies thereof can be realized by multiple device, these devices include but not limited to: analog circuit, digital circuit, general processor, Digital Signal Processing (DSP) circuit, programmable processor, application-specific integrated circuit (ASIC) (ASIC), field programmable gate array (FPGA), programmable logic device (CPLD), etc.
In addition, those skilled in the art will appreciate that and that in the embodiment of the present invention, describe can be stored in local data base with data travel time and distance dependent.In addition, these data also can be stored in distributed data base or can be stored in remote data base.
In addition, embodiments of the invention disclosed herein can be realized on computer program.More specifically, this computer program is following a kind of product: have computer-readable medium, on computer-readable medium, coding has computer program logic, and when carrying out on computing equipment, this computer program logic provides relevant operation to realize technique scheme of the present invention.While carrying out at least one processor at computing system, computer program logic makes the operation (method) described in the processor execution embodiment of the present invention.This set of the present invention is typically provided as and arranges or be coded in such as the software on the computer-readable medium of light medium (such as CD-ROM), floppy disk or hard disk etc., code and/or other data structures or such as other media or the Downloadable software image in one or more module, the shared data bank etc. of the firmware on one or more ROM or RAM or PROM chip or microcode.Software or firmware or this configuration can be arranged on computing equipment, so that the one or more processors in computing equipment are carried out the described technical scheme of the embodiment of the present invention.
Although below show the present invention in conjunction with the preferred embodiments of the present invention, one skilled in the art will appreciate that without departing from the spirit and scope of the present invention, can carry out various modifications, replacement and change to the present invention.Therefore, the present invention should not limited by above-described embodiment, and should be limited by claims and equivalent thereof.
Claims (20)
1. for a charging system for electric motor car, comprising:
Plan of travel creating unit, is configured to create plan of travel based on travel time and trip distance;
Charging scheme computing unit, is configured to calculate charging scheme based on plan of travel, and described charging scheme comprises the information relevant with charge point;
Monitoring unit, is configured to monitor actual trip and plan of travel whether deviation occurs; And
Analytic unit, is configured to: whether if actual trip and plan of travel generation deviation, analyzing described deviation affects charge point nearest in charging scheme; If nearest charge point in described deviation effects charging scheme, makes described plan of travel creating unit re-create plan of travel, and make the plan of travel of described charging scheme computing unit based on re-creating recalculate charging scheme.
2. charging system according to claim 1, wherein, described plan of travel creating unit is configured to: based on historical travel time and trip distance or travel time and trip distance based on user's input, create plan of travel.
3. charging system according to claim 1, wherein, described charging scheme computing unit is configured to calculate optimum charging scheme based on plan of travel, and described optimum charging scheme meets following at least one: in way the charging interval the shortest, charge best in quality and charging price is minimum.
4. charging system according to claim 1, wherein, described analytic unit is configured to: if the predetermined trip distance in actual trip distance or time and plan of travel or the deviation of time are greater than threshold value, make described plan of travel creating unit re-create plan of travel, and make the plan of travel of described charging scheme computing unit based on re-creating recalculate charging scheme.
5. charging system according to claim 1, wherein, described analytic unit is configured to: if other charge point of the nearest charge point of appointment are charged in being different from charging scheme, make described plan of travel creating unit re-create plan of travel, and make the plan of travel of described charging scheme computing unit based on re-creating recalculate charging scheme.
6. charging system according to claim 1, wherein, described charging scheme computing unit is configured to: based on plan of travel, for each trip cost, calculate corresponding optimum charging scheme, described trip cost comprises in way, charge stand-by period, charging quality and charging price.
7. charging system according to claim 6, wherein, described analytic unit is configured to: if other charge point of the nearest charge point of appointment are charged in being different from a plurality of charging schemes, make described plan of travel creating unit re-create plan of travel, and make the plan of travel of described charging scheme computing unit based on re-creating recalculate corresponding a plurality of optimum charging scheme.
8. charging system according to claim 6, wherein, described analytic unit is configured to: if nearest charge point in actual trip and plan of travel generation deviation and all charging schemes of described deviation effects, make described plan of travel creating unit re-create plan of travel, and make the plan of travel of described charging scheme computing unit based on re-creating recalculate corresponding a plurality of optimum charging scheme.
9. charging system according to claim 6, also comprises:
User's selective reception unit, is configured to receive user to for calculating the selection of the trip cost of charging scheme;
Wherein, described charging scheme computing unit is configured to: the trip cost based on plan of travel and user's selection is calculated charging scheme.
10. charging system according to claim 9, wherein,
Described user's selective reception unit is also configured to: receive the selection of user to one or more charging scheme in a plurality of charging schemes; And
Described monitoring unit is also configured to: one or more charging scheme that supervisory user is selected.
11. 1 kinds of charging methods for electric motor car, comprising:
Create plan of travel based on travel time and trip distance;
Based on plan of travel, calculate charging scheme, described charging scheme comprises the information relevant with charge point;
Whether the actual trip of monitoring there is deviation with plan of travel; And
If whether actual trip and plan of travel generation deviation, analyzing described deviation affects charge point nearest in charging scheme;
If nearest charge point in described deviation effects charging scheme, re-creates plan of travel, and charging scheme is recalculated in the plan of travel based on re-creating.
12. charging methods according to claim 11, wherein, create plan of travel based on historical travel time and trip distance or travel time and trip distance based on user's input.
13. charging methods according to claim 11, wherein, calculate optimum charging scheme based on plan of travel, and described optimum charging scheme meets following at least one: in way the charging interval the shortest, charge best in quality and charging price is minimum.
14. charging methods according to claim 11, wherein, if the predetermined trip distance in actual trip distance or time and plan of travel or the deviation of time are greater than threshold value, re-create plan of travel, and charging scheme is recalculated in the plan of travel based on re-creating.
15. charging methods according to claim 11, wherein, if other charge point of the nearest charge point of appointment are charged in being different from charging scheme, re-create plan of travel, and charging scheme are recalculated in the plan of travel based on re-creating.
16. charging methods according to claim 11, wherein, based on plan of travel, calculate corresponding optimum charging scheme for each trip cost, and described trip cost comprises in way, charge stand-by period, charging quality and charging price.
17. charging methods according to claim 16, wherein, if other charge point of the nearest charge point of appointment are charged in being different from a plurality of charging schemes, re-create plan of travel, and corresponding a plurality of optimum charging scheme is recalculated in the plan of travel based on re-creating.
18. charging methods according to claim 16, wherein, if nearest charge point in actual trip and plan of travel generation deviation and all charging schemes of described deviation effects, re-create plan of travel, and corresponding a plurality of optimum charging scheme is recalculated in the plan of travel based on re-creating.
19. charging methods according to claim 16, also comprise:
Receive user to for calculating the selection of the trip cost of charging scheme; And
Trip cost based on plan of travel and user's selection is calculated charging scheme.
20. charging methods according to claim 19, also comprise:
Receive the selection of user to one or more charging scheme in a plurality of charging schemes; And
One or more charging scheme that supervisory user is selected.
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