CN102118071B - Method and device for remotely maintaining vehicle-mounted batteries - Google Patents
Method and device for remotely maintaining vehicle-mounted batteries Download PDFInfo
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- CN102118071B CN102118071B CN2010102591258A CN201010259125A CN102118071B CN 102118071 B CN102118071 B CN 102118071B CN 2010102591258 A CN2010102591258 A CN 2010102591258A CN 201010259125 A CN201010259125 A CN 201010259125A CN 102118071 B CN102118071 B CN 102118071B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
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- 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
- Y02T90/167—Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
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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
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- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
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Abstract
The invention relates to a new energy technique, in particular to a method and device for remotely maintaining batteries of a hybrid electric vehicle and an electric vehicle. In the method for remotely maintaining vehicle-mounted batteries, a power supply coil and a power-received coil which are suitable for mutual coupling are respectively arranged on a road and a vehicle to realize non-contact charging, the method comprises the following steps of: receiving the state information of the vehicle-mounted batteries; determining the current remaining power of the vehicle-mounted batteries according to the state information; selecting a driving route for the vehicle according to the determined current remaining power and the current position of the vehicle to charge the vehicle-mounted batteries to an appropriate remaining power level; and transmitting the selected driving route to the vehicle. In the embodiment of the invention, a battery charge state and the charging capacity of the road are brought into considering factors when the driving route is determined so that the determined route is more appropriate.
Description
The Chinese patent application 200910247792.1 that is entitled as " a kind of non-contact charge method and infrastructure for vehicle " that the application submitted on December 31st, 2009 requires priority.
Technical field
The present invention relates to new energy technology, particularly the battery of hybrid vehicle and electric automobile is carried out the method and apparatus of remote maintenance.
Background technology
In order significantly to reduce the CO2 emissions of automobile, car industry drops into a large amount of man power and materials and is researching and developing with the new automobile of electric power as power source, for example hybrid vehicle and electric automobile.In new automobile, battery is used to storage of electrical energy.Consider fail safe, cost and useful life, the energy content of battery density of the electric automobile of exploitation is not high at present, and this has limited the endurance distance after its each charging.Obviously, the perfect of charging infrastructure is that electric automobile obtains universal important prerequisite.In fact, the action of jointly improving charging infrastructure of enterprise and government is just being carried out in high gear in countries in the world.
If charging infrastructure can improve, so for the user, the endurance distance after the each charging of electric automobile just no longer is problem.What then, the user more paid close attention to will be charging interval and the charging modes of battery.
The concept of " charging " changes, and reason has been to occur to have long useful life and lithium ion battery that can quick charge.The appearance of the battery of life-span length and quickly-chargeable has also brought new selection for the design of electronic equipment.Such as, the design engineer can select the battery of low capacity, solves the problem of off-capacity by frequent charge, as long as the life-span of battery is enough long, just need not to change battery within the useful life period of equipment.
Above-mentioned battery is combined with the non-contact charge technology, just can develop the new equipment that can charge whenever and wherever possible.The appearance of this kind equipment also will impel the infrastructure of non-contact charge to improve.
Obviously, battery is becoming one of parts of the most core in the automobile, so the importance of battery maintenance also more highlights.
Summary of the invention
The present invention aims to provide long-distance maintenance method and the device of on-vehicle battery, and it can realize the good maintenance to on-vehicle battery.
According to the long-distance maintenance method to on-vehicle battery of the present invention, the power supply coil that is suitable for intercoupling is set respectively on road and vehicle and is subjected to electric coil to realize contactless charging, described method comprises the following steps:
Receive the state information of described on-vehicle battery from vehicle;
Determine the current residual electric weight of described on-vehicle battery according to described state information;
According to the current location of determined current residual electric weight and vehicle, for described vehicle select traffic route with in the process of moving with described charging on-vehicle battery to suitable dump energy level; And
Send selected traffic route to described vehicle.
Preferably, in said method, described state information comprises voltage, electric current, internal resistance and the temperature of described on-vehicle battery.
Preferably, in said method, described dump energy characterizes with battery charge state SOC, this battery charge state SOC is obtained by error anti-pass neural computing, this neural net comprises input layer, hidden layer and output layer, the input variable of described input layer is voltage, electric current, temperature and the internal resistance of described on-vehicle battery, and the output variable of described output layer is battery charge state SOC.
Preferably, in said method, described neural net is adjusted each layer weight according to following manner in the learning training process:
If neural net overall error rising or constant then reduces step-length after this weight adjustment, otherwise increase step-length, the step-length here trends towards zero difference trend degree according to the neural net overall error and determines.
Preferably, in said method, follow following functional relation between neural net overall error and the step-length:
Here η is step-length, and E is the neural net overall error, and α is the constant greater than zero.
Preferably, in said method, a plurality of described power supply coils are arranged on the described road with certain spacing, can be recharged incessantly in motion to guarantee described vehicle.
Preferably, in said method, receive the state information of described on-vehicle battery and send selected traffic route to described vehicle from vehicle through wireless communication unit.
According to the device for on-vehicle battery being carried out remote maintenance of the present invention, wherein, the power supply coil that is suitable for intercoupling is set respectively on road and vehicle and is subjected to electric coil to realize described contactless charging, described device comprises:
With the input unit of mobile communication system coupling, be used for receiving from vehicle the state information of described on-vehicle battery;
Computing unit with described input unit coupling, be used for determining according to described state information the current residual electric weight of described on-vehicle battery, and according to the current location of determined current residual electric weight and vehicle, for described vehicle select traffic route with in the process of moving with described charging on-vehicle battery to suitable dump energy level; And
With the output unit of described computing unit coupling, be used for sending selected traffic route through described mobile communication system to described vehicle.
In an embodiment of the present invention, by in the learning training process, adopting the step-length that changes, improved study precision and training speed, thereby obtained better battery charge state computational accuracy.In addition, in an embodiment of the present invention, the Consideration when including the charging ability of battery charge state and road in definite traffic route is so that the route of determining is more suitable.
From following detailed description by reference to the accompanying drawings, will make above and other objects of the present invention and advantage more fully clear.
Description of drawings
Fig. 1 is the schematic diagram according to the infrastructure of one embodiment of the present invention;
Fig. 2 installs the vehicle schematic diagram that is subjected to electric coil according to an embodiment of the invention;
Fig. 3 installs the vehicle schematic diagram that is subjected to electric coil in accordance with another embodiment of the present invention;
Fig. 4 is the schematic diagram of charging method according to an embodiment of the invention;
Fig. 5 a and 5b are the schematic diagrames that also has the power supply coil in the non-contact charger of an embodiment according to the present invention.
Fig. 6 a and 6b are the schematic diagrames that is subjected to the electric coil array that also has according to the present invention in the non-contact charger of an embodiment.
Fig. 7 is the schematic diagram for the artificial nerve network model of the SOC that calculates on-vehicle battery.
Fig. 8 is the flow chart of the learning training process of model shown in Figure 7.
Fig. 9 shows the schematic diagram that can use a scene of the present invention.
Figure 10 is the schematic diagram of on-vehicle battery remote maintenance device according to an embodiment of the invention.
Figure 11 shows the structured flowchart of computing unit 920 shown in Figure 10.
Figure 12 is the schematic flow sheet according to the on-vehicle battery long-distance maintenance method of one embodiment of the invention.
Embodiment
The below will specify the present invention according to the accompanying drawing of expression embodiment of the present invention.
Term
In the description of this specification, infrastructure refers to provide for social production and resident living the material job facilities of public service, such as including but not limited to the communal facilitys such as highway, railway, airport, communication, water power coal gas.Infrastructure has stationarity in form, mostly is nonvolatil building on the physical form, for the city produce and resident living for a long time, generally often do not upgrade and arbitrarily remove and discard.
In the description of this specification, highway or road refer to a kind of common for vehicle, current the passed through public way of humans and animals.
In the description of this specification, vehicle refers to a kind of vehicles that are used for land transport that can drive voluntarily that are equipped with, and unless stated otherwise, these two terms of vehicle and automobile in this manual can Alternate.
In the description of this specification, non-contact charge refers to a kind of charging device and device to be charged and need not just can realize that by contacting physically electric energy is transported to the latter's charging modes from the former, for example includes but not limited to way of electromagnetic induction and magnetic resonance mode.
Electromagnetic induction charged is utilized electromagnetic induction principle, carries out the transmission of energy by the coupling of primary coil and secondary coil (being subjected to electric coil).The content that the contactless charging mode of relevant employing is charged to vehicle can be referring to " power supply charge system of electric automobile " (light-duty vehicle technology 2001 (9) total 145 4-8 pages or leaves), and the mode that this piece paper is quoted in full comprises in this manual.In the resonance charging modes, when the natural frequency of receiving coil is consistent with the electromagnetic field frequency of transmitting coil, will produce resonance, magnetic Field Coupling intensity obviously strengthens at this moment, and the efficiency of transmission of electric power increases substantially.In the description of this specification, primary coil and transmitting coil are called again the power supply coil, and secondary coil and receiving coil are called again and are subjected to electric coil.
In the description of this specification, mobile communication system refers to the network system that at least one party in the two ends of setting up exchange message can be in mobile status, such as including but not limited to gsm mobile communication system, WCDMA mobile communication system, CDMA2000 mobile communication system and TD-SCDMA mobile communication system etc.
In the description of this specification, smart card refers to the miniaturized electronics that comprises integrated circuit, can store the information relevant with the electricity charge, for example remaining sum in integrated circuit.In a kind of typical smart card, include central processor CPU, programmable read only memory EEPROM, random access memory ram and be solidificated in card internal operating system COS in the read only memory ROM.
Infrastructure
One of them main points of the present invention are, the power supply coil is set at the infrastructure place and is subjected to electric coil vehicle setting, like this, when this infrastructure of vehicle process, because electromagnetic coupled or resonance coupling, electric energy is transferred to the energy storage device (for example battery or ultracapacitor) of vehicle.
Particularly, in a preferred embodiment, a plurality of power supply coils can be set below the road surface or below the roadbed, power infrastructures (for example municipal electrical network) is arranged and be connected to these power supply coils for example along the bearing of trend of road or the direct of travel of vehicle, so, when vehicle when road travels, on it be subjected to electric coil successively with these power supply coil generation electromagnetic coupled or resonance, thereby the battery of the vehicle under the motion state is carried out trickle charge.Although the electric weight that each power supply coil provides is limited, but when the power supply coil that sufficient amount is set below the roadbed of road (such power supply coil for example all is set on most of road), as long as vehicle travels on road, its battery in fact just is being recharged always, therefore the distance travelled of vehicle is subjected to the battery energy storage quantitative limitation hardly, its flying power even can far surpass with the conventional art vehicle of fossil fuel as power.In addition, in the present embodiment, consider that vehicle is larger at the stop probability of road cross, more powerful power supply coil can be set below the roadbed at crossing.
According to this preferred embodiment, because the power supply coil is arranged on the existing road, therefore can avoid building a large amount of charging stations in the roadside, this compares with the prior art scheme of the numerous charging stations of Quantity, has greatly saved land resource.In addition, because therefore mobile charging has when driving improved the convenience of charging.
Except road recited above, principle of the present invention equally also can be applicable to other infrastructure.For example, in another preferred embodiment, the power supply coil can be arranged on the parking stall of parking lot or road, for example bury the power supply coil underground below the zone, parking stall, like this, the battery that is docked in the vehicle on the parking stall can be recharged.Fig. 1 is the schematic diagram according to a kind of like this infrastructure of execution mode, has wherein illustrated among Fig. 1 at place, road parking position and has been provided with the power supply coil, sees the round shape thing 100 in the lower right corner among the figure.
Vehicle
According to preferred embodiment of the present invention, be subjected to electric coil in vehicle front bottom installation.Fig. 3 is the vehicle schematic diagram that is subjected to electric coil according to the installation of present embodiment.Referring to Fig. 3, vehicle 200 comprise be installed in the front bottom of vehicle be subjected to electric coil 210, it is connected to battery 230 through rectifier 220.When being subjected to electric coil 210 through power supply coil 100 tops or resting on power supply coil 100 top, by coupling or resonance mode, electric energy flows to battery 230 by the electrical network (not shown).
In order to improve delivery of electrical energy efficient, can adopt large type coil.For this reason, can as shown in Figure 3, at vehicle rear the high-power electric coil that is subjected to be installed.Referring to Fig. 3, vehicle 200 comprise be installed in vehicle rear be subjected to electric coil 210, it is connected to battery 230 through rectifier 220.When being subjected to electric coil 210 through power supply coil 100 tops or resting on power supply coil 100 top, by coupling or resonance mode, electric energy flows to battery 230 by the electrical network (not shown).
By present embodiment as seen, the installation that is subjected to electric coil on the vehicle can be adopted existing technology, has therefore obviously reduced research and development and manufacturing cost when implementing.
Non-contact power charging system
Non-contact power charging system according to one embodiment of the present of invention comprises the power supply coil and is subjected to electric coil, the former can be arranged on the infrastructure of vehicle process (such as road, railing, parking lot etc.), the latter is installed on the vehicle, like this, when vehicle when the infrastructure, the electric energy of electrical network is by the power supply coil and be subjected to coupling between the electric coil to be delivered to energy-storage units (for example battery or ultracapacitor) in the vehicle.
For example as shown in Figure 4, power supply coil 100 is set below road or in the roadbed and is subjected to electric coil 210 in the vehicle installation, realized the contactless charging of electrical network (not shown) to Vehicular battery 230.
Fig. 5 a and 5b show the schematic diagram that the power supply coil is set at road.Shown in Fig. 5 a and 5b, one group of power supply coil 100 is arranged on road 500 belows (for example in the roadbed 501 of road) with certain spacing, like this, the electric coil that is subjected to of vehicle namely can be sensed electric energy in motion incessantly, and realizes thus the charging to the energy-storage units of vehicle.
When the axes alignment of power supply coil and charge coil, the coupling of the two is the strongest.But can't guarantee the aligning in axle center during owing to Vehicle Driving Cycle, therefore will cause charging ability to descend.In order to address this problem, according to embodiments of the invention, can install at vehicle and be subjected to electric coil array or one group to be subjected to electric coil, because they are distributed in diverse location, even therefore the driving path of vehicle changes, also can guarantee to have all the time part to be subjected to electric coil and power supply coil is close coupling.
Fig. 6 a shows the schematic diagram that is subjected to the electric coil array according to one embodiment of the invention.Shown in Fig. 6 a, this is subjected to electric coil array 600 to comprise a plurality of electric coils 601 that are subjected to, these be subjected to electric coil 601 with matrix arrangement on substrate 700.Alternatively, also can be embedded in the substrate 700 by electric coil 601.On the other hand, these can for example be linked to each other with the energy-storage units of vehicle by electric coil 601 in parallel, thereby the electric energy of electrical network is filled with energy-storage units.Consider the fluctuating on ground, can also make part be subjected to electric coil and other to be subjected to the orientation of electric coil slightly different.
Fig. 6 b shows the schematic diagram that is subjected to the electric coil array according to another embodiment of the present invention.Shown in Fig. 6 b, this is subjected to electric coil array 600 to comprise a plurality of electric coils 602 that are subjected to, and these are subjected to electric coil 602 interlaced arrangement on substrate 700.Equally, also can be embedded in the substrate 700 by electric coil 602, and can link to each other with the energy-storage units of vehicle in parallel, thereby the electric energy of electrical network is filled with energy-storage units.In addition, also can make part be subjected to electric coil and other to be subjected to the orientation of electric coil slightly different.
Charging panel
For the electric energy that is coupled better, be subjected to the electric coil array generally all to be installed in the bottom of vehicle, yet the installation site of energy-storage units need not such restriction.Shown in Fig. 6 a and 6b, in one embodiment of the invention, be integrated on the substrate to manufacture a charging panel by electric coil, this charging panel is installed in the bottom of vehicle, and the energy-storage units of other position links to each other in will being subjected to the electric coil array and being installed in vehicle by wire.
The calculating of battery charge state (SOC)
Battery charge state can't directly measure, and is general by the detection of battery external characteristic (parameters such as cell voltage U, battery current I, internal resistance of cell R, battery temperature T) is inferred.But the relation of battery external characteristic and SOC changes with the process of cell degradation, and the operating state of electric automobile power battery and environment change with the condition of travelling, and this accurate calculating that causes SOC is difficulty relatively.
According to one embodiment of the present of invention, adopt the model based on neural net shown in Figure 7 to calculate the SOC of on-vehicle battery.
As shown in Figure 7, this model adopts three layers of BP neural net, and input layer is internal resistance R, voltage V, electric current I and the battery temperature T of battery, and the intermediate layer is hidden layer, and output layer is SOC.
Fig. 8 is the flow chart of the learning training process of model shown in Figure 7.As shown in Figure 8, in step 810, to the weight assignment of the unit in each layer.Then in step 820, input the output of a sample and expectation.In step 830, calculate the output of each layer and determine thus overall error according to Positive Propagation Algorithm.In step 840, trend towards adjusted value or the step-length that zero degree is determined weight according to overall error.In step 850, with the BP algorithm of standard the weight of each unit is revised.In step 860, again calculate the output of each layer and determine thus new overall error according to Positive Propagation Algorithm.In step 870, judge that this new overall error whether less than default threshold value, if so, then finishes the learning training process, otherwise returns step 840.
In above-mentioned steps 840, adopt following formula to determine adjusted value or the step-length of the weight of each unit:
Here η is step-length, and E is the overall error of neural net, and α is the constant greater than zero, for example preferably can value between 0.01-1.
The maintenance of on-vehicle battery
Fig. 9 shows the schematic diagram that can use a scene of the present invention.In this scene, suppose below the road surface of part or all of road or for example all be provided with the power supply coil of arranging and be connected to power infrastructures (for example municipal electrical network) along the direct of travel of the bearing of trend of road or vehicle below the roadbed, when vehicle when such road travels, install on it be subjected to electric coil successively with these power supply coil generation electromagnetic coupled or resonance, thereby the battery of the vehicle under the motion state is carried out trickle charge.
As shown in Figure 9, vehicle 200 travels at road 500, and the wireless communication unit 300 on the vehicle communicates with the base station 410 of mobile communication system 400, to send the state information of on-vehicle battery, for example comprises voltage, electric current, internal resistance and the temperature of battery.On-vehicle battery remote maintenance device 900 access mobile communication systems 400, it is used for calculating battery charge state according to the state information of on-vehicle battery also thus can be with the suitable traffic route of charging on-vehicle battery to required charge level for the vehicle selection.The calculated example of battery charge state is above-mentioned in conjunction with Fig. 7 and 8 described methods as adopting.Wireless communication unit 300 can be mobile unit (for example being the GPS navigation equipment of vehicle configuration), also can be periodic traffic equipment or the computing equipment of mobile communication terminal, personal digital assistant or the portable computer with wireless Internet access ability and so on.It is worthy of note, here on-vehicle battery remote maintenance device 900 can be by physically independently server realization, but alternatively, the calculating of SOC and the selection of traffic route also can realize under a kind of distributed environment, this moment by some spatially independently the computing equipment coordinated realize the remote maintenance of battery.These different execution modes all belong to spirit of the present invention and protection range.
When selecting traffic route for vehicle, on-vehicle battery remote maintenance device 900 also needs the information of relevant vehicle current location and the information of purpose.The shift position service (Location Based Service, LBS) that the information of current location can utilize mobile communication carrier for example to provide obtains.Particularly, because the shift position service can be determined the position of wireless communication unit 300, thereby the current location of vehicle is also determined.The shift position service refers to the cooperation by wireless terminal and wireless network, determines the business of mobile subscriber's actual position information.In mobile communications network, usually can be based on the location technology of Cell ID, it is obtained the base station Cell information at the current place of user to obtain user's current location by network side, and its precision depends on the distribution of mobile base station and the size of coverage.
Mobile communication terminal for access cdma communication network, can adopt the location technology based on AFLT (Advanced Forward Link Trilateration), AFLT is the exclusive technology of CDMA, when positioning action, mobile phone or mobile communication terminal are monitored the pilot frequency information of a plurality of base stations simultaneously, utilize the chip time delay to determine to arrive near the distance of base station, calculate the particular location of mobile communication terminal and be sent to on-vehicle battery remote maintenance device 900 with triangulation location at last.
Mobile communication terminal for being equipped with the GPS module can adopt the GPS location technology to locate.In order to improve positioning accuracy, also can adopt AGPS (wireless network assistant GPS location technology) technology.The AGPS technology with satellite scanner uni location computing etc. the most hard work transfer to location-server from terminal one side and finish, by the powerful operational capability of location-server, by the impact of unfavorable factors such as adopting complicated location algorithm to reduce to receive a little less than the signal.The latitude and longitude information that location-server calculates is sent back to mobile communication terminal by mobile communications network, is sent to on-vehicle battery remote maintenance device 900 by mobile communication terminal again.
Figure 10 is the schematic diagram that is used for according to an embodiment of the invention on-vehicle battery remote maintenance device.
As shown in figure 10, on-vehicle battery remote maintenance device 900 comprises input unit 910, computing unit 920 and output unit 930.Input unit 910 and mobile communication system coupling are for the on-vehicle battery state information (for example voltage of battery, electric current, internal resistance and temperature) of the information that receives the vehicle current location, destination information and vehicle transmission.The information of vehicle current location can offer input unit 910 through mobile communication system by wireless communication unit; perhaps offer input unit 910 by location-server through mobile communication system, these different execution modes all belong to spirit of the present invention and protection range.Input unit 910 also with computing unit 920 coupling, deliver to computing unit 920 with the state information of the battery that will receive, information and the destination information of vehicle current location.Computing unit 920 for example utilizes in conjunction with Fig. 7 and the described mode of Fig. 8, calculates battery charge state according to the state information of battery.Computing unit 920 judges after calculating battery charge state whether battery needs to charge and required charge capacity, if need charging, be provided with the road of power supply coil or the distribution map of charging station near then from the database (not shown), transferring the vehicle current location, select thus suitable traffic route.Output unit 930 and computing unit 920 couplings, thus the traffic route of selecting is sent to vehicle through mobile communication system.
In on-vehicle battery remote maintenance device 900 shown in Figure 10, can also comprise the authentication device (not shown) alternatively, whether registered for the user who determines request battery remote maintenance should business.
Figure 11 shows the schematic diagram of computing unit 920 shown in Figure 10.
As shown in figure 11, computing unit 920 comprise the required charge capacity determination module 921 of on-vehicle battery, memory module 922,, route retrieval module 923, charge capacity estimate module 924 and traffic route determination module 925.
The required charge capacity determination module 921 of on-vehicle battery for example utilizes in conjunction with Fig. 7 and the described mode of Fig. 8, calculates battery charge state and determines thus the required charge capacity of on-vehicle battery according to the state information of the battery that receives from input unit 910.The result that should determine is output to traffic route determination module 925.
The road that is provided with the power supply coil in (1) geographic area distributes and the position of charging station.
(2) potential route between the every pair of place.A geographic area can be divided into a plurality of grids, there is one or more path between every pair of grid point (being equivalent to every pair of place), remaining path was potential route after (should be less than preset value, one-way traffic restriction etc. such as path) be done filtering and processed according to default condition, and they are stored in the memory module 922 according to the mode corresponding with the every pair of grid point.
(3) every highway section that the path that is confirmed as potential route comprises.For every paths, it can be divided into the continuous highway section of multistage according to character of road and form.Here so-called character of road for example includes but not limited to: setting space and the size (can characterize charging ability) of the width of road (can characterize congested in traffic degree), vehicle flowrate (can characterize congested in traffic degree), vehicle average speed (can characterize congested in traffic degree) and power supply coil.It is worthy of note that the parameter of vehicle flowrate and vehicle average speed and so on can adopt the historical statistics value, also can real-time update.
(4) length in every highway section and charging ability.
The parameter that route retrieval module 923 retrieves is output to charge capacity and estimates module 924, is used for estimating that for the latter every potential route is to the charge capacity of on-vehicle battery.
Traffic route determination module 925 is defined as charge capacity traffic route and offers output unit 930 near one or more potential route of the required charge capacity of on-vehicle battery the most.
It is pointed out that modules in the above-described computing unit 920 is based on function and divides, but concrete realization might not be adopted and functional module mode one to one.For example in one implementation, the function of memory module realizes by hardware entities (for example memory or data server) independently, and the required charge capacity determination module 921 of on-vehicle battery, route retrieval module 923, charge capacity are estimated the function of module 924 and traffic route determination module 925 and can be realized by operation software module on computers.And for example, also can utilize independent hardware (such as special circuits such as programmable logic devices) to realize respectively.All these different implementations all belong to spirit of the present invention and protection range.
Figure 12 is the schematic flow sheet according to the on-vehicle battery long-distance maintenance method of one embodiment of the invention.
As shown in figure 12, in step 1210, the user is at wireless communication unit 300 his/her destination information of input.Destination information also can be the fuzzy information of " near fast food restaurant " and so on such as being the precise informations such as concrete road name, number.
Then enter step 1220, wireless communication unit 300 sends the message of request battery maintenance to the base station 410 of mobile communication system 400, this message comprises the state information (such as the voltage that comprises battery, electric current, internal resistance and temperature etc.) of destination information and on-vehicle battery.
Enter subsequently step 1230, authentication device in the authentication server (not shown) of mobile communication network 400 or the on-vehicle battery remote maintenance device determines whether the user who sends this request message has registered the remote maintenance business, if unregistered, then enter step 1240, send note to wireless communication unit 300, prompting user is registered; Otherwise, then enter step 1250.
In step 1250, on-vehicle battery remote maintenance device 900 calculates battery charge state according to the state information of on-vehicle battery.The calculated example of battery charge state is above-mentioned in conjunction with Fig. 7 and 8 described methods as adopting.
In step 1260, on-vehicle battery remote maintenance device 900 judges whether battery needs to charge and required charge capacity subsequently, if need charging, then enters step 1270, otherwise enters step 1280, generates the message of on-vehicle battery current electric quantity abundance.
In step 1270, on-vehicle battery remote maintenance device 900 is that vehicle is selected suitable traffic route according to current location and the destination information of required charge capacity, vehicle.The selection of traffic route for example can be adopted as in conjunction with the described mode of Figure 11.
In step 1280, the traffic route that on-vehicle battery remote maintenance device 900 is selected to message or the step 1270 of the current electric quantity abundance of wireless communication unit forwarding step 1280 generations through mobile communication system.
It is worthy of note that the process of above-mentioned on-vehicle battery remote maintenance is by Client-initiated, but this process can be initiated by on-vehicle battery remote maintenance device also.Particularly, the on-vehicle battery remote maintenance can regularly or aperiodically receive the state information of on-vehicle battery and judge accordingly whether battery needs charge maintenance from vehicle.These different execution modes all belong within spirit of the present invention and the protection range.
Because can be under the spirit that does not deviate from essential characteristic of the present invention, implement the present invention with various forms, so present embodiment is illustrative and not restrictive, scope of the present invention is defined by claims.
Claims (10)
1. the long-distance maintenance method to on-vehicle battery wherein, arranges respectively the power supply coil that is suitable for intercoupling and is subjected to electric coil to realize contactless charging on road and vehicle, and described method comprises the following steps:
Receive the state information of described on-vehicle battery from vehicle;
Determine the current residual electric weight of described on-vehicle battery according to described state information;
According to the current location of determined current residual electric weight and vehicle, for described vehicle select traffic route with in the process of moving with described charging on-vehicle battery to suitable dump energy level; And
Send selected traffic route to described vehicle,
Wherein, described state information comprises voltage, electric current, internal resistance and the temperature of described on-vehicle battery, described dump energy characterizes with battery charge state SOC, this battery charge state SOC is obtained by error anti-pass neural computing, this neural net comprises input layer, hidden layer and output layer, the input variable of described input layer is voltage, electric current, temperature and the internal resistance of described on-vehicle battery, and the output variable of described output layer is battery charge state SOC.
2. the method for claim 1, wherein described neural net is adjusted each layer weight according to following manner in the learning training process:
If neural net overall error rising or constant then reduces step-length after this weight adjustment, otherwise increase step-length, the step-length here trends towards zero difference trend degree according to the neural net overall error and determines.
3. method as claimed in claim 2, wherein, follow following functional relation between neural net overall error and the step-length:
Here η is step-length, and E is the neural net overall error, and α is the constant greater than zero.
4. the method for claim 1, wherein a plurality of described power supply coils are arranged on the described road with certain spacing, can be recharged incessantly in motion to guarantee described vehicle.
5. the method for claim 1, wherein receive the state information of described on-vehicle battery and send selected traffic route to described vehicle from vehicle through wireless communication unit.
6. a device that is used for on-vehicle battery is carried out remote maintenance wherein, arranges respectively the power supply coil that is suitable for intercoupling and is subjected to electric coil to realize contactless charging on road and vehicle, and described device comprises:
With the input unit of mobile communication system coupling, be used for receiving from vehicle the state information of described on-vehicle battery;
Computing unit with described input unit coupling, be used for determining according to described state information the current residual electric weight of described on-vehicle battery, and according to the current location of determined current residual electric weight and vehicle, for described vehicle select traffic route with in the process of moving with described charging on-vehicle battery to suitable dump energy level; And
With the output unit of described computing unit coupling, be used for sending selected traffic route through described mobile communication system to described vehicle,
Wherein, described state information comprises voltage, electric current, internal resistance and the temperature of described on-vehicle battery, described dump energy characterizes with battery charge state SOC, this battery charge state SOC is obtained by error anti-pass neural computing, this neural net comprises input layer, hidden layer and output layer, the input variable of described input layer is voltage, electric current, temperature and the internal resistance of described on-vehicle battery, and the output variable of described output layer is battery charge state SOC.
7. device as claimed in claim 6, wherein, described neural net is adjusted each layer weight according to following manner in the learning training process:
If neural net overall error rising or constant then reduces step-length after this weight adjustment, otherwise increase step-length, the step-length here trends towards zero difference trend degree according to the neural net overall error and determines.
8. device as claimed in claim 7, wherein, follow following functional relation between neural net overall error and the step-length:
Here η is step-length, and E is the neural net overall error, and α is the constant greater than zero.
9. device as claimed in claim 6, wherein, a plurality of described power supply coils are arranged on the described road with certain spacing, can be recharged incessantly in motion to guarantee described vehicle.
10. device as claimed in claim 6, wherein, described current location is provided by described mobile communication system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010102591258A CN102118071B (en) | 2009-12-31 | 2010-08-16 | Method and device for remotely maintaining vehicle-mounted batteries |
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| CN200910247792 | 2009-12-31 | ||
| CN200910247792.1 | 2009-12-31 | ||
| CN2010102591258A CN102118071B (en) | 2009-12-31 | 2010-08-16 | Method and device for remotely maintaining vehicle-mounted batteries |
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| CN102118071A CN102118071A (en) | 2011-07-06 |
| CN102118071B true CN102118071B (en) | 2013-04-10 |
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| CN201010200604.2A Expired - Fee Related CN102118069B (en) | 2009-12-31 | 2010-06-03 | High-efficiency non-contact charging system and vehicle charged by same |
| CN2010102312851A Pending CN102118070A (en) | 2009-12-31 | 2010-07-08 | Method and device for charging non-contact charge and vehicle comprising device |
| CN2010102366141A Expired - Fee Related CN102117073B (en) | 2009-12-31 | 2010-07-16 | Method and device for determining driving route of vehicle during non-contact charging process |
| CN2010102591258A Expired - Fee Related CN102118071B (en) | 2009-12-31 | 2010-08-16 | Method and device for remotely maintaining vehicle-mounted batteries |
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| CN201010200604.2A Expired - Fee Related CN102118069B (en) | 2009-12-31 | 2010-06-03 | High-efficiency non-contact charging system and vehicle charged by same |
| CN2010102312851A Pending CN102118070A (en) | 2009-12-31 | 2010-07-08 | Method and device for charging non-contact charge and vehicle comprising device |
| CN2010102366141A Expired - Fee Related CN102117073B (en) | 2009-12-31 | 2010-07-16 | Method and device for determining driving route of vehicle during non-contact charging process |
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| CN102118069A (en) | 2011-07-06 |
| CN102117073B (en) | 2013-04-10 |
| CN102118070A (en) | 2011-07-06 |
| CN102118071A (en) | 2011-07-06 |
| CN102118069B (en) | 2014-12-17 |
| CN102117073A (en) | 2011-07-06 |
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