CN102544610A - Method and system for charging electric vehicle on road - Google Patents
Method and system for charging electric vehicle on road Download PDFInfo
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- CN102544610A CN102544610A CN201110000487XA CN201110000487A CN102544610A CN 102544610 A CN102544610 A CN 102544610A CN 201110000487X A CN201110000487X A CN 201110000487XA CN 201110000487 A CN201110000487 A CN 201110000487A CN 102544610 A CN102544610 A CN 102544610A
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention provides a method for charging an electric vehicle running on a road. In the running process of the electric vehicle, the electric vehicle is charged in a time slot between slow moving and stopping of the electric vehicle. A system comprises a starting system, a positioning/directional communication device, a connection device, a battery pack charger and a battery manager. The method comprises the following steps of: when the starting system determines a certain reduced speed at which the electric vehicle can be connected, starting a charging system; determining information such as the voltage of a battery and the relative position of a road charger by the charging system, and if the electric vehicle is in a connectable and chargeable state, starting the connection device; connecting the electric vehicle and the road charger by using the connection device, and starting charging the electric vehicle; in the charging process, monitoring a charging state and a connection state by the charging system; and if the electric vehicle and the road charger cannot be connected or the battery is fully charged, disconnecting the electric vehicle from the road charger.
Description
Technical field
The present invention relates to charging electric vehicle method and charging system for electric automobile, relate in particular to a kind of wireless power transmission system.
Background technology
Current, electric automobile has been the trend direction of following development of automobile.But reach several hours charging interval, short distance travelled, serious restriction the use of electric automobile.In addition, charging station involves great expense as yet and to popularize, and causes that fears are entertained that and can't in time charge and can't popularize.These problems all need the long-term accumulation of science and technology perfectly to solve.
Common charging modes has following defective at present:
1. the huge costliness of charging pile quantity.Traditional oils station refueling time is several minutes, and general charging station needs several hours.With an automobile pollution that the city is millions of, be the hundreds of times at traditional oils station in the time of charging station cost.If keep the automobile quantity in present city, the charging station quantity that need are newly-increased also will be the hundreds of times at existing oil station so, and this is very high on cost.
2. cause new urban disease.If can not all be equipped with charging pile in each parking lot, the power failure that several sub-districts perhaps the take place problem of rationing the power supply can imagine so how the charging station in the city can block up, and forms new urban disease.
3. service efficiency is low.Single charging station that relies in the city; The charging demand of city fraction vehicle certainly will be can only satisfied, must rely on the charger in sub-district and parking lot, Office Area, and the charger of each parking stall one or two vehicle service can only be every day; Most of the time all is wasted, and the service efficiency of unit cost is low.
The present invention makes full use of the traffic congestion time that the city is wasted originally through on road, laying wireless or wired power transmission device, electric automobile is carried out the charging that can be interrupted.Especially to being used for the vehicle of purposes on and off duty, distance travelled is less, and the road charging can be satisfied its demand basically, can significantly reduce the electric motor car quantity of in charging station, waiting for like this, reduces and waits for.And along with the development of battery technology and charging technique, the battery charge required time will inevitably reduce, and road charging system even possibly substitute charging station fully makes vehicle in urban road, realize uninterruptedly going so.
1. the charging interval is adjusted.The mode that present charging station fills soon under the situation of charging current 150～400A, generally spends 20 minutes to 2 hours.And according to " 2010 Chinese new city report " in Beijing on average the traffic congestion time be 52 minutes, Guangzhou 48 minutes, Shanghai 47 minutes, Shenzhen 46 minutes, Chengdu 31 minutes.If count the general wait traffic lights time in, the time can be more.
In addition, in the city vehicle recoverable amount, actual private car as purposes on and off duty accounts for big relatively ratio; This part vehicle distance travelled every day is less; So the charging interval that it is required, also can be far fewer than in the sub-district or the time of staying of Office Area, charging can be satisfied its consumption basically on road.
The charging modes that 2. can be interrupted has more performance.Have patent to set forth (patent No. 200420042802.0), pulse current discharges and recharges has the effect of strengthening its toughness, the life-span that recycles that can improve storage battery greatly to battery pole plates; Simultaneously, because the active material that " polarization " disappearance of phenomenon, pulse current again can activated batteries inside, profound ground, thereby improved the charging available capacity of storage battery significantly.
3. wireless power transmission technology.2008, the Massachusetts Institute of Technology announced the achievement in research of wireless power transmission Witricty project.Witricty company accomplishes at present, uses small size antenna, can in two meters distances, transmit to surpass 3.3 kilowatts electric power, and is identical with the power of general household lines.And be the more large-area antenna of automotive development, can transmit more high-power.Coupling mode transferring electric power efficient generally surpasses 90% altogether.In addition, in fail safe, human body is exposed to and does not have any risk in the strong magnetic field circumstance as non-magnetic object.When hospital carried out nuclear magnetic resonance check to patient, magnetic field intensity can not injure human body up to B～1T yet.By contrast, magnetic field intensity is in B～10-4T order of magnitude under the resonance state, only is equivalent to the intensity in earth magnetic field, therefore can not constitute harm to human body.And the present invention lays antenna on the road top layer, is about 0.1～0.22 meter with the automobile chassis distance, and radiation is littler, uses safer.And can adopt the overlarge area antenna at automobile chassis, then through-put power and efficient will be higher.
4. develop sustainability.The development of lithium ion battery chemistry and nanometer technology, the novel battery that brings charging to be exceedingly fast.Japan JFEEngineering corporation plan is released novel battery in March, 2011, only need 3 minutes, and charge volume just can reach 50%, 5 minute charge volume can reach 80%.When the efficient of charging acquires a certain degree, the road charging device quantity that the unit mileage needs will significantly reduce, and this scheme construction cost will reduce greatly.Possibly substitute charging station fully, in urban road, realize uninterruptedly going.
Summary of the invention
The present invention utilizes the time charging of waiting in the vehicle traveling process, and in order to overcome present stationary electric power plant method length with high costs, consuming time, quantity required is huge, uses inconvenient defective, alleviates the crowded state of city electric car charging station.
For reaching above-mentioned target, the present invention proposes a kind of new charging modes.In vehicle traveling process, utilize vehicle jogging and stop gap time to charge.System comprises start-up system, positioned/oriented communicator, jockey, group charger and battery manager.May further comprise the steps: start-up system is judged electric motor car and is decelerated to the degree that certain can connect, and then starts charging system; Charging system is judged information such as cell voltage and relative road charger position, if can connect the state of charging, then starts jockey; Jockey connects, and begins charging; In charging process, charging system monitoring charged state and connection status; But, just break off and connecting if exceed connection status or battery is full of.
The present invention also proposes a kind of electric motor car road charging system, uses lotus root antenna technology altogether, converts electrical energy into magnetic field and sends vehicle to.System comprises automatic start up system, battery set management device, positioner, communication device, external power source manager, reception antenna and transmitting antenna.Said automatic start up system is used to judge vehicle running state, in the speed of a motor vehicle slowly or start charging system when stopping.Said on-vehicle battery group manager is used to collect battery pack information, and according to battery status, need to judge whether charging, and intelligence adjustment charging incoming frequency and voltage.Said positioner, the position and the distance of judgement emission, reception antenna confirm whether connect.The said antenna that transmits and receives is used for interface channel, the transmission energy.Said communication device is used to transmit information such as on-vehicle battery group or ground power supply.Said ground power supply manager is used for linking to each other with external power source, and according to the on-vehicle battery group information Control power output that receives.
The present invention lays charger on road, save the power plant construction soil.Charger can be to a plurality of Vehicular chargings among one day, and repeat usage is high, reduce electric motor car use cost in the city.Easy-to-use, be beneficial to the popularization of electric automobile.And make full use of the time of blocking up, reduce vehicle, slow down even avoid the problem of blocking up of new generation in the stand-by period of charging station.
Description of drawings
Fig. 1 is the flow chart of electrical bicycle charging method of the present invention;
Fig. 2 is an electric vehicle system structure chart of the present invention;
Fig. 3 is a use sketch map of the present invention
Embodiment
Describe system of the present invention below in detail, the example of said system is shown in the drawings.In the structure chart of system, identical or similar label is represented identical or similar device, or has the system of identical or similar functions.Be exemplary through the system that is described with reference to the drawings below, only be used to explain the present invention, and can not be interpreted as limitation of the present invention.
Below in conjunction with accompanying drawing instance provided by the present invention is further explained.
As shown in Figure 2, charging system provided by the present invention is divided into vehicle-mounted part and above ground portion.Vehicle-mounted part comprises start-up system 120, location of communication system 130, charging management system 140 and reception antenna 170.Above ground portion comprises location of communication system 210, external power source manager 220 and transmitting antenna (battle array) 240.The external supply line 250 of above ground portion.
Shown in Fig. 1 flow chart, steps A at first, but the start-up system 120 of vehicle-mounted part detects that vehicle stops and during the entering join domain, just start charging management system 140, carries out step B; Management system 140 is through location of communication system 130, and control antenna 170 connects with ground.Ground location of communication system 210 receives behind the connection request and vehicle positioning communication system 130 exchange position informations, judges whether and can connect.If of course, get into step C, the external power source management system 220 of battery pack information to ground system is provided, external power source management system 220 is according to these information, and parameters such as the field intensity of adjustment antenna (battle array) and direction connect, and get into step D and E then.Vehicle-mounted management system 140 is monitored through 142 pairs of battery charging process of batteries management system after receiving the connection affirmation of location of communication system 130.When connect to break off, charging is accomplished or occur when unusual, management system 140 charge closing passages, and inform that through location of communication system 130 ground system closes.
Said start-up system 120 judges that vehicle gets into the traffic congestion state, whether gets into connection status but survey the road charging system.Wherein, the judgement of start-up system can have several different methods, for example can use the detection speed of a motor vehicle, gravity sensing, and infrared induction is specified one or more regional methods of charging.Use speed of a motor vehicle detection mode in this instance.
Said location of communication system 130 and 210 for the known any wired or wireless communication mode of those skilled in the art, can use radio frequency, and is infrared, LAN etc.Instance of the present invention is selected wireless RF-wise for use.
Said jockey 170 and 240 can use wired or wireless mode, and wireless mode can adopt medium modes such as magnetic field, battery or electromagnetic field again.The preferred radio frequency of this instance lotus root antenna mode altogether transmits energy.
Said ground-plane antenna (battle array) 240 can be made up of one or more antennas according to circumstances, can realize one or more vehicles are charged simultaneously.This instance is simple declaration, only introduces single antenna to a vehicle electric power thus supplied.
The external supply line 250 of said above ground portion can be a public line, can be high-tension line or low-voltage circuit.
Said external power source manager externally supplies power 250 when using civilian low-voltage circuit, can also comprise storage battery, and the short time high-voltage charging is provided, and improves charge efficiency.
Claims (8)
1. an electric motor car road charging method is characterized in that, through being installed in the charger on the road, but the electric motor car realization discontinuous charging to suspending in the driving process.Said charging system comprises start-up system, positioned/oriented device, jockey, group charger and battery manager.May further comprise the steps:
Start-up system is judged electric motor car and is decelerated to the degree that system can connect, and then starts charging system;
Charging system is judged cell voltage and relative road charger position, if can connect the state of charging, then starts jockey;
Jockey connects, and begins charging;
In charging process, charging system monitoring charged state and connection status;
But, just break off and connecting if exceed connection status or battery is full of.
2. according to right 1 described method, it is characterized in that the speed that the start-up system detecting vehicle goes judges whether to connect charging device.The behavior of detecting can be accomplished by vehicle, also can be accomplished by ground installation.In charging system of the present invention, select for use vehicle to control automatically.
3. according to right 1 described method, it is characterized in that jockey can be wired connection or wireless connections, in charging system of the present invention, selects wireless connections for use.
4. an electric motor car road wireless type charging system is characterized in that, uses wireless technology, converts electrical energy into other energy mode and sends vehicle to.Said system comprises automatic start up system, battery set management device, positioner, communication device, external power source manager, reception antenna and transmitting antenna.
Said automatic start up system is used to judge vehicle running state, in the speed of a motor vehicle slowly or start charging system when stopping.
Said on-vehicle battery group manager is used to collect battery pack information, and according to battery status, need to judge whether charging, and intelligence adjustment charging incoming frequency and voltage.
Said positioner, the position and the distance of judgement emission, reception antenna confirm whether connect.
The said antenna that transmits and receives is used for interface channel, the transmission energy.
Said communication device is used to transmit information such as on-vehicle battery group or ground power supply.
Said ground power supply manager is used for linking to each other with external power source, and according to the on-vehicle battery group information Control power output that receives.
5. according to right 4 described electric motor car road charging systems, it is characterized in that positioner can have multiple mode to realize.The present invention uses the wireless frequency modulation mode.
6. according to right 4 described electric motor car road charging systems, it is characterized in that positioner and communication device also can use same device to realize.Be same device in the present invention.
7. according to right 4 described electric motor car road charging systems, it is characterized in that having multiple wireless technology can transmit electric power, the present invention uses common lotus root antenna technology to transmit.
8. according to right 4 described electric motor car road charging systems, it is characterized in that transmitting antenna can transmit electric energy to one or more reception antennas simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110000487XA CN102544610A (en) | 2011-01-04 | 2011-01-04 | Method and system for charging electric vehicle on road |
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| CN201110000487XA CN102544610A (en) | 2011-01-04 | 2011-01-04 | Method and system for charging electric vehicle on road |
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| CN102544610A true CN102544610A (en) | 2012-07-04 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104283287A (en) * | 2014-10-28 | 2015-01-14 | 李晨莹 | Quick charge/feed method for public road traffic intersection |
| CN105119392A (en) * | 2015-09-30 | 2015-12-02 | 武汉大学 | Electric car dynamic wireless power supply system based on resonance magnetic coupling technology and method |
| CN105172613A (en) * | 2015-10-27 | 2015-12-23 | 厦门新页科技有限公司 | Charging method for electric vehicle |
| CN105270200A (en) * | 2015-11-02 | 2016-01-27 | 国网山东省电力公司电力科学研究院 | Intelligent quick charging device for electric automobiles, arranged on urban road, and intelligent quick charging method for electric automobiles |
| CN105529751A (en) * | 2014-09-29 | 2016-04-27 | 刘跃进 | Wireless charging belt system for providing charging, positioning, navigation and automatic driving for electric vehicle |
| CN105656126A (en) * | 2016-02-04 | 2016-06-08 | 陈思 | Automatic charging information uploading type charging station |
| CN107972666A (en) * | 2016-10-25 | 2018-05-01 | 奥迪股份公司 | The vehicle of the vehicle travelled on wireless charging track deviates early warning system and method |
| CN108597115A (en) * | 2018-04-20 | 2018-09-28 | 佛山市龙生光启科技有限公司 | a kind of intelligent road and management method |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105529751A (en) * | 2014-09-29 | 2016-04-27 | 刘跃进 | Wireless charging belt system for providing charging, positioning, navigation and automatic driving for electric vehicle |
| CN104283287A (en) * | 2014-10-28 | 2015-01-14 | 李晨莹 | Quick charge/feed method for public road traffic intersection |
| CN104283287B (en) * | 2014-10-28 | 2016-05-18 | 李晨莹 | Public way traffic intersection electric vehicle rapid charging/feed method |
| CN105119392A (en) * | 2015-09-30 | 2015-12-02 | 武汉大学 | Electric car dynamic wireless power supply system based on resonance magnetic coupling technology and method |
| CN105172613A (en) * | 2015-10-27 | 2015-12-23 | 厦门新页科技有限公司 | Charging method for electric vehicle |
| CN105270200A (en) * | 2015-11-02 | 2016-01-27 | 国网山东省电力公司电力科学研究院 | Intelligent quick charging device for electric automobiles, arranged on urban road, and intelligent quick charging method for electric automobiles |
| CN105270200B (en) * | 2015-11-02 | 2018-05-04 | 国网山东省电力公司电力科学研究院 | Electric automobile intelligence quick charge device and the method being arranged on urban road |
| CN105656126A (en) * | 2016-02-04 | 2016-06-08 | 陈思 | Automatic charging information uploading type charging station |
| CN107972666A (en) * | 2016-10-25 | 2018-05-01 | 奥迪股份公司 | The vehicle of the vehicle travelled on wireless charging track deviates early warning system and method |
| CN107972666B (en) * | 2016-10-25 | 2021-08-27 | 奥迪股份公司 | Vehicle deviation early warning system and method for vehicle running on wireless charging lane |
| CN108597115A (en) * | 2018-04-20 | 2018-09-28 | 佛山市龙生光启科技有限公司 | a kind of intelligent road and management method |
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Application publication date: 20120704 |