CN105391145A - Electric vehicle non-contact charging automatic guiding and control system and method - Google Patents
Electric vehicle non-contact charging automatic guiding and control system and method Download PDFInfo
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- CN105391145A CN105391145A CN201510735740.4A CN201510735740A CN105391145A CN 105391145 A CN105391145 A CN 105391145A CN 201510735740 A CN201510735740 A CN 201510735740A CN 105391145 A CN105391145 A CN 105391145A
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/30—Constructional details of charging stations
- B60L53/35—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles
- B60L53/38—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles specially adapted for charging by inductive energy transfer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/12—Inductive energy transfer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
- B60L53/64—Optimising energy costs, e.g. responding to electricity rates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
- B60L53/66—Data transfer between charging stations and vehicles
- B60L53/665—Methods related to measuring, billing or payment
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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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
- Y02T90/14—Plug-in electric vehicles
Abstract
The invention discloses an electric vehicle non-contact charging automatic guiding and control system and a method. The system comprises a non-contact charging device, a non-contact charging positioning device and a charging monitoring backstage, wherein the charging monitoring backstage communicates with the electric vehicle and the non-contact charging device respectively; the non-contact charging device comprises a vehicle-mounted electric energy receiving device and a ground electric energy transmitting device; the ground electric energy transmitting device carries out charging electric energy transmission and transmits the electric energy to the vehicle-mounted electric energy receiving device; the vehicle-mounted electric energy receiving device transmits the received non-contact charging electric energy to a power battery of the electric vehicle; and the non-contact charging positioning device is provided with the ground electric energy transmitting device. Rough charging vehicle positioning and accurate charging position are carried out via a vehicle charging guiding device and a vision precision positioning device, and a basis is provided for high-efficiency non-contact charging.
Description
Technical field
The present invention relates to electric automobile field, particularly relate to the contactless charging homing guidance of a kind of electric automobile and control system and method.
Background technology
Under energy crisis and the impact of air pollution double factor; the whole world is all being advocated the development of electric automobile energetically and is popularizing; China is under new forms of energy policy support; electric automobile demand increases fast; fill and change electric Facilities Construction and be also rapidly developed; non-contact charging device does not need to be connected with electric power system by vehicle with attaching plug, socket, cable etc., just directly can carry out quick charge to it.In addition noncontact quick charge can be arranged in the multiple places such as parking lot, house, roadside, electric automobile is charged whenever and wherever possible and becomes possibility.But non-contact charger also has some limitations, comprise delivery of electrical energy distance shorter, charge efficiency is lower, charge efficiency is especially by transmission range and location precision, if charging distance of reaction is long or accurately do not aim at, then the efficiency of charging will decline greatly.
Contactless charging equipment charge efficiency in actual applications, under comparing laboratory environment, efficiency declines to a great extent, trace it to its cause, lack the contactless charging homing guidance of rational electric automobile and charge control method at present, cause the maximal efficiency that cannot play non-contact charger, both caused the huge waste of the energy, affected the charging interval again.
Summary of the invention
For solving the deficiency that prior art exists, the invention discloses the contactless charging homing guidance of a kind of electric automobile and control system and method, the present invention locates the control & monitor of guiding and charging process by contactless charging, the optimum Working of adjustment non-contact charger, improves charge efficiency.
For achieving the above object, concrete scheme of the present invention is as follows:
A kind of contactless charging homing guidance of electric automobile and control system, comprise non-contact charger, contactless charging positioner and charging monitoring backstage, described charging monitoring backstage communicates with electric automobile and non-contact charger respectively, described non-contact charger comprises vehicle-mounted electric energy receiving system and ground electric energy transmission device, ground electric energy transmission device carries out rechargeable electrical energy transmitting and transfers to vehicle-mounted electric energy receiving system, vehicle-mounted electric energy receiving system by receive contactless charging power delivery to electric automobile power battery, described contactless charging positioner is provided with ground electric energy transmission device,
Charging monitoring backstage adjusts ground electric energy transmission device in real time according to the contactless charge efficiency of electric automobile, positions adjust contactless charge efficiency to ground electric energy transmission device and vehicle-mounted electric energy receiving system.
Described ground electric energy transmission device comprises power transfer circuitry, transmitting coil and the first main control unit, and described main control unit is connected with power transfer circuitry, and described power transfer circuitry is sent to transmitting coil after the AC energy of electrical network being transformed;
Described vehicle-mounted electric energy receiving system comprises high-frequency rectification circuit, receiving coil and the second main control unit, and described receiving coil receives the electric power signal of transmitting coil transmission and this electric power signal carried out being sent to the second main control unit after rectification through high-frequency rectification circuit.
Preferably, described ground electric energy transmission device is placed in ground, carries out rechargeable electrical energy transmitting.
Preferably, described vehicle-mounted electric energy receiving system is connected with the on-vehicle battery of electric automobile, receives contactless charging electric energy.
Described ground electric energy transmission device also comprises the first protective circuit and the first radio communication unit, and described first radio communication unit is connected with the first main control unit, and described first protective circuit is arranged between the first main control unit and power transfer circuitry.First protective circuit plays the effect of protection to the Signal transmissions between the first main control unit and power transfer circuitry.First radio communication unit is used for carrying out communication with the supervisory control system of contactless charging.
Further, described power transfer circuitry comprises the first filter circuit, the first rectification circuit and the high-frequency inverter circuit that connect successively.The electric energy of electrical network is carried out filtering, rectification and high-frequency inversion process by power transfer circuitry successively, obtains the AC energy being suitable for wireless transmission band.
Described vehicle-mounted electric energy receiving system also comprises the second protective circuit and the second radio communication unit; described second radio communication unit is connected with the second main control unit; described second protective circuit is arranged between the second main control unit and high-frequency rectification circuit, and the second protective circuit plays the effect of protection to the Signal transmissions between the second main control unit and high-frequency rectification circuit.Second radio communication unit is also for carrying out communication with the supervisory control system of contactless charging.
Further, described high-frequency rectification circuit comprises and connects the second rectification circuit, voltage stabilizing circuit and the second filter circuit successively, described high-frequency rectification circuit carries out rectification, voltage stabilizing and filtering process to the electric power signal received, and the electric energy after process exports battery to and charges.
The contactless charging homing guidance of above-mentioned a kind of electric automobile and control system, further, described contactless charging positioner comprises vision accurate positioning device and charging platform; Described vision accurate positioning device comprises vision positioning device, transverse translation stepping motor, longitudinal translation stepping motor, lifting stepping motor and PLC;
Described PLC respectively with transverse translation stepping motor, longitudinal translation stepping motor, be elevated stepping motor, vision positioning device and charging monitoring backstage and be connected; Described PLC, transverse translation stepping motor, longitudinal translation stepping motor, lifting stepping motor are installed on charging platform, and after PLC receives the charging positioning instruction on charging monitoring backstage, Driving Stepping Motor carries out charging location.
Described charging platform is connected by ball with ground electric energy transmission device, and ground electric energy transmission device can be moved on charging platform.
Further, described vision positioning device comprises vision alignment sensor and vision alignment sensor target spot, and vision alignment sensor is connected with ground electric energy transmission device, is positioned at the center of ground electric energy transmission device; Vision alignment sensor target spot is connected with vehicle-mounted electric energy receiving system, is positioned at the center of vehicle-mounted electric energy receiving system.
Further, described contactless charging positioner also comprises Vehicular charging guiding device, and Vehicular charging guiding device comprises wheel V-type groove and vehicle guidance block rubber, is installed on ground, for the coarse localization of vehicle parking, be convenient to the success rate of precise positioning.
Described electric automobile power battery communicates with car-mounted terminal, and car-mounted terminal is used for Real-Time Monitoring electric automobile oneself state, and obtains the status data of battery, and the data of monitoring are sent to charging monitoring backstage by onboard wireless communication module by car-mounted terminal.
Described charging monitoring backstage is connected with ground electric energy transmission device, and described onboard wireless communication module is connected with car-mounted terminal; Charging monitoring backstage is communicated with onboard wireless communication module by communication, obtains electric automobile and power battery data.
The wireless communication mode of described charging monitoring backstage and onboard wireless communication module includes but not limited to Wifi, bluetooth, ZigBee local wireless communication mode.
Based on the method for the contactless charging homing guidance of above-mentioned a kind of electric automobile and control system, comprise the following steps:
Step one: electric automobile according to Non-contact type charging conductance leading-in device, by vehicle parking in contactless battery charger position;
Step 2: electric automobile, according to the contactless charging vehicle bit number stopped, sets up electric automobile and non-contact charger and the wireless telecommunications annexation with charging monitoring backstage;
Step 3: charging monitoring backstage sends charging positioning instruction to the ground electric energy transmission device of non-contact charger, PLC is by transverse translation stepping motor, the horizontal and vertical movement of longitudinal translation step motor control ground electric energy transmission device on charging platform, until vision alignment sensor on the electric energy transmission device of ground and the vision alignment sensor target spot on vehicle-mounted electric energy receiving system set up identify corresponding after, charging location completes;
Step 4: charging monitoring backstage obtains the battery status information of electric automobile by wireless communication mode, starts contactless charging;
Step 5: in charging process, the status data of non-contact charger, electric automobile vehicle state and electric automobile power battery is detected on charging monitoring backstage in real time, by the input power of ground electric energy transmission device and the power output of vehicle-mounted electric energy receiving system, calculate contactless charge efficiency, if charge efficiency is greater than the efficiency minimum of setting, then continue charging, until step 7, otherwise, proceed to step 6;
Step 6: re-start alignment sensor calibration, and move up and down adjustment by regulating longitudinal translation stepping motor to carry out ground electric energy transmission device, change the efficiency of contactless charging until charge efficiency is greater than the efficiency minimum of setting;
Step 7: keep charged state, until charging complete.
In step one, vehicle sails charging station into along the vehicle guidance block rubber of charging station both sides, and is fallen within by wheel in wheel V-type groove, carries out the coarse localization of vehicle parking.
Beneficial effect of the present invention:
1. the present invention carries out coarse localization and the charging precise positioning of charging vehicle, for efficient contactless charging provides basis according to Vehicular charging guiding device and vision accurate positioning device.
2. the present invention is by the running status of electric automobile, electrokinetic cell and non-vehicle-mounted charging device, and automatic start-stop charges, and in charging process, according to the change of charge efficiency, carry out non-vehicle-mounted charging device position dynamic conditioning, achieve the Automatic Optimal of charge efficiency, improve charge efficiency.
3. the present invention is applicable to the contactless charge mode of chassis type, and can be widely used in the occasions such as parking stall, multi-storied garage, parking lot, applied range, plays facilitation to the popularization of contactless charging.
Accompanying drawing explanation
Fig. 1 is system construction drawing of the present invention;
Fig. 2 is that Vehicular charging of the present invention stops guiding overall schematic;
Fig. 3 is accurate location of the present invention schematic diagram;
Fig. 4 is the contactless charging homing guidance of electric automobile of the present invention and control method flow chart;
Wherein, 100. non-contact charger, 101. electric automobile, 102. car-mounted terminal, 103. vehicle-mounted electric energy receiving systems, 104. ground electric energy transmission devices, 105. vision accurate positioning device, 106. charging platform, 107. Vehicular charging guiding devices, 108. charging monitoring backstages, 109. onboard wireless communication modules, 200. contactless charging positioners, 201.PLC controller, 202. transverse translation stepping motors, 203. longitudinal translation stepping motors, 204. lifting stepping motors, 205. vision alignment sensors, 206. vision alignment sensor target spots, 302.V type groove, 301 vehicle guidance block rubbers.
Embodiment:
Below in conjunction with accompanying drawing, the present invention is described in detail:
As Figure 1-3, the contactless charging homing guidance of a kind of electric automobile and control system comprise: non-contact charger 100, contactless charging positioner 200, charging monitoring backstage 108, car-mounted terminal 102, onboard wireless communication module 109.
Described non-contact charger 100 comprises vehicle-mounted electric energy receiving system 103, ground electric energy transmission device 104.Described vehicle-mounted electric energy receiving system 103, is connected with electric automobile 101 electrokinetic cell, can receive contactless charging electric energy; Described ground electric energy transmission device 104, is placed in ground, carries out rechargeable electrical energy transmitting.
Described contactless charging positioner 200, comprises Vehicular charging guiding device 107, vision accurate positioning device 105, charging platform 106.Described Vehicular charging guiding device 107, comprises wheel V-type groove 302, vehicle guidance block rubber 301.Described vision accurate positioning device 105, comprises vision alignment sensor 205, vision alignment sensor target spot 206, transverse translation stepping motor 202, longitudinal translation stepping motor 203, lifting stepping motor 204, PLC 201.Described vision alignment sensor 205 is connected with ground electric energy transmission device 104, is positioned at the center of ground electric energy transmission device 104; Vision alignment sensor target spot 206 is connected with vehicle-mounted electric energy receiving system 103, is positioned at the center of vehicle-mounted electric energy receiving system 103.Described PLC 201 respectively with transverse translation stepping motor 202, longitudinal translation stepping motor 203, be elevated stepping motor 204, vision alignment sensor 205 is connected.Described charging platform 106 is connected by ball with ground electric energy transmission device 104, and ground electric energy transmission device 104 can be moved on charging platform 106.
Ground electric energy transmission device 104 and vehicle-mounted electric energy receiving system 103, described ground electric energy transmission device 104 comprises power transfer circuitry, transmitting coil and the first main control unit, described main control unit is connected with power transfer circuitry, and described power transfer circuitry is sent to transmitting coil after the AC energy of electrical network being transformed;
Vehicle-mounted electric energy receiving system 103 comprises high-frequency rectification circuit, receiving coil and the second main control unit, and described receiving coil receives the electric power signal of transmitting coil transmission and this electric power signal carried out being sent to the second main control unit after rectification through high-frequency rectification circuit.
Preferably, ground electric energy transmission device 104 is placed in ground, carries out rechargeable electrical energy transmitting.Ground electric energy transmission device 104 also can be arranged on the position of setting according to the actual charge requirement of electric automobile.
Preferably, described vehicle-mounted electric energy receiving system 103 is connected with the on-vehicle battery of electric automobile, receives contactless charging electric energy.
Ground electric energy transmission device 104 also comprises the first protective circuit and the first radio communication unit, and described first radio communication unit is connected with the first main control unit, and described first protective circuit is arranged between the first main control unit and power transfer circuitry.First protective circuit plays the effect of protection to the Signal transmissions between the first main control unit and power transfer circuitry.First radio communication unit is used for carrying out communication with the supervisory control system of contactless charging.
Further, described power transfer circuitry comprises the first filter circuit, the first rectification circuit and the high-frequency inverter circuit that connect successively.The electric energy of electrical network is carried out filtering, rectification and high-frequency inversion process by power transfer circuitry successively, obtains the AC energy being suitable for wireless transmission band.
Described vehicle-mounted electric energy receiving system 103 also comprises the second protective circuit and the second radio communication unit; described second radio communication unit is connected with the second main control unit; described second protective circuit is arranged between the second main control unit and high-frequency rectification circuit, and the second protective circuit plays the effect of protection to the Signal transmissions between the second main control unit and high-frequency rectification circuit.Second radio communication unit is also for carrying out communication with the supervisory control system of contactless charging.
Further, described high-frequency rectification circuit comprises and connects the second rectification circuit, voltage stabilizing circuit and the second filter circuit successively, described high-frequency rectification circuit carries out rectification, voltage stabilizing and filtering process to the electric power signal received, and the electric energy after process exports battery to and charges.
Ground electric energy transmission device 104 is connected with electrical network, and by power transfer circuitry, the 50Hz AC energy of electrical network is converted into the AC energy being suitable for wireless transmission band, high-frequency ac electric energy is converted into electromagnetic energy by transmitting coil; The receiving coil of vehicle-mounted electric energy receiving system 103 becomes electric energy electromagnetic energy, charges by exporting battery to after high-frequency rectification circuit rectifying and wave-filtering.Communication is carried out by the charging monitoring backstage of the first wireless communication unit and the second wireless communication unit and contactless charging in charging process.
Described car-mounted terminal 102 is connected with electric automobile 101 electrokinetic cell, for Real-Time Monitoring electric automobile 101 oneself state, and obtains the status data of battery;
Described charging monitoring backstage 108 for monitoring contactless charging process, for efficient contactless charging provide strategy; Described charging monitoring backstage 108 is connected with ground electric energy transmission device 104, and described onboard wireless communication module 109 is connected with car-mounted terminal 102; Charging monitoring backstage 108 is communicated with onboard wireless communication module 109 by communication, obtains electric automobile 101 and power battery data.Described charging monitoring backstage 108 includes but not limited to Wifi, bluetooth, ZigBee local wireless communication mode with the wireless communication mode of onboard wireless communication module 109.
The contactless charging homing guidance of electric automobile and control workflow as shown in Figure 4, comprise following content:
Electric automobile 101 is parked on contactless battery charger position according to Non-contact type charging conductance leading-in device 107 by vehicle operator, electric automobile 101 is according to contactless battery charger bit number, onboard wireless communication module 109 and charging monitoring backstage 108 and non-contact charger 100 are connected, connects for one_to_one corresponding pattern;
Charging monitoring backstage 108 sends charging positioning instruction to the ground electric energy transmission device 104 of non-contact charger 100, PLC 201 controls the horizontal and vertical movement of ground electric energy transmission device 104 on charging platform 106 by transverse translation stepping motor 202, longitudinal translation stepping motor 203, until vision alignment sensor 205 on ground electric energy transmission device 104 and the vision alignment sensor target spot 206 on vehicle-mounted electric energy receiving system 103 set up identify corresponding after, charging location completes;
Charging monitoring backstage 108 obtains the battery status information of electric automobile 101 by wireless communication mode, starts contactless charging;
In charging process, non-contact charger 100 is detected in real time in charging monitoring backstage 108, the status data of electric automobile 101 vehicle-state and electric automobile power battery, by the input power of ground electric energy transmission device 104 and the power output of vehicle-mounted electric energy receiving system 103, calculate contactless charge efficiency, if charge efficiency is greater than the efficiency minimum of setting, then continue charging, otherwise re-start alignment sensor calibration, and carry out ground electric energy transmission device 104 and move up and down adjustment, change the efficiency of contactless charging, until reach the optimum of charge efficiency, continue to keep charged state, until charging complete.
In charging process, disconnect if charging monitoring backstage 108 is connected with electric automobile 101 communication, then the onboard wireless communication module 109 in electric automobile 101 carries out reconnection operation, connects, continue charging if recover in setting-up time, otherwise charging controls backstage 108 and cuts off power supply circuits.
In charging process, all status datas in the Real-time Collection charging process of charging monitoring backstage, and abnormal data is reported to the police.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.
Claims (10)
1. the contactless charging homing guidance of electric automobile and control system, it is characterized in that, comprise non-contact charger, contactless charging positioner and charging monitoring backstage, described charging monitoring backstage communicates with electric automobile and non-contact charger respectively, described non-contact charger comprises vehicle-mounted electric energy receiving system and ground electric energy transmission device, ground electric energy transmission device carries out rechargeable electrical energy transmitting and transfers to vehicle-mounted electric energy receiving system, vehicle-mounted electric energy receiving system by receive contactless charging power delivery to electric automobile power battery, described contactless charging positioner is provided with ground electric energy transmission device,
Charging monitoring backstage adjusts ground electric energy transmission device in real time according to the contactless charge efficiency of electric automobile, positions adjust contactless charge efficiency to ground electric energy transmission device and vehicle-mounted electric energy receiving system.
2. the contactless charging homing guidance of a kind of electric automobile as claimed in claim 1 and control system, it is characterized in that, described ground electric energy transmission device comprises power transfer circuitry, transmitting coil and the first main control unit, described main control unit is connected with power transfer circuitry, and described power transfer circuitry is sent to transmitting coil after the AC energy of electrical network being transformed;
Described vehicle-mounted electric energy receiving system comprises high-frequency rectification circuit, receiving coil and the second main control unit, and described receiving coil receives the electric power signal of transmitting coil transmission and this electric power signal carried out being sent to the second main control unit after rectification through high-frequency rectification circuit.
3. the contactless charging homing guidance of a kind of electric automobile as claimed in claim 2 and control system; it is characterized in that; described ground electric energy transmission device also comprises the first protective circuit and the first radio communication unit; described first radio communication unit is connected with the first main control unit, and described first protective circuit is arranged between the first main control unit and power transfer circuitry.
4. the contactless charging homing guidance of a kind of electric automobile as claimed in claim 2 and control system, it is characterized in that, described power transfer circuitry comprises the first filter circuit, the first rectification circuit and the high-frequency inverter circuit that connect successively, the electric energy of electrical network is carried out filtering, rectification and high-frequency inversion process by power transfer circuitry successively, obtains the AC energy being suitable for wireless transmission band.
5. the contactless charging homing guidance of a kind of electric automobile as claimed in claim 2 and control system, it is characterized in that, described vehicle-mounted electric energy receiving system also comprises the second protective circuit and the second radio communication unit, described second radio communication unit is connected with the second main control unit, described second protective circuit is arranged between the second main control unit and high-frequency rectification circuit, second protective circuit plays the effect of protection to the Signal transmissions between the second main control unit and high-frequency rectification circuit, second radio communication unit is also for carrying out communication with the supervisory control system of contactless charging.
6. the contactless charging homing guidance of a kind of electric automobile as claimed in claim 5 and control system, it is characterized in that, described high-frequency rectification circuit comprises and connects the second rectification circuit, voltage stabilizing circuit and the second filter circuit successively, described high-frequency rectification circuit carries out rectification, voltage stabilizing and filtering process to the electric power signal received, and the electric energy after process exports battery to and charges.
7. the contactless charging homing guidance of a kind of electric automobile as claimed in claim 1 and control system, is characterized in that, described contactless charging positioner comprises vision accurate positioning device and charging platform; Described vision accurate positioning device comprises vision positioning device, transverse translation stepping motor, longitudinal translation stepping motor, lifting stepping motor and PLC;
Described PLC respectively with transverse translation stepping motor, longitudinal translation stepping motor, be elevated stepping motor, vision positioning device and charging monitoring backstage and be connected; Described PLC, transverse translation stepping motor, longitudinal translation stepping motor, lifting stepping motor are installed on charging platform, and after PLC receives the charging positioning instruction on charging monitoring backstage, Driving Stepping Motor carries out charging location;
Described charging platform is connected by ball with ground electric energy transmission device, and ground electric energy transmission device can be moved on charging platform.
8. the contactless charging homing guidance of a kind of electric automobile as claimed in claim 7 and control system, it is characterized in that, described vision positioning device comprises vision alignment sensor and vision alignment sensor target spot, vision alignment sensor is connected with ground electric energy transmission device, is positioned at the center of ground electric energy transmission device; Vision alignment sensor target spot is connected with vehicle-mounted electric energy receiving system, is positioned at the center of vehicle-mounted electric energy receiving system.
9. the contactless charging homing guidance of a kind of electric automobile as claimed in claim 7 and control system, it is characterized in that, described contactless charging positioner also comprises Vehicular charging guiding device, and Vehicular charging guiding device comprises wheel V-type groove and vehicle guidance block rubber.
10., based on the method for the contactless charging homing guidance of a kind of electric automobile described in the claims 1 and control system, it is characterized in that, comprise the following steps:
Step one: electric automobile according to Non-contact type charging conductance leading-in device, by vehicle parking in contactless battery charger position;
Step 2: electric automobile, according to the contactless charging vehicle bit number stopped, sets up electric automobile and non-contact charger and the wireless telecommunications annexation with charging monitoring backstage;
Step 3: charging monitoring backstage sends charging positioning instruction to the ground electric energy transmission device of non-contact charger, PLC is by transverse translation stepping motor, the horizontal and vertical movement of longitudinal translation step motor control ground electric energy transmission device on charging platform, until vision alignment sensor on the electric energy transmission device of ground and the vision alignment sensor target spot on vehicle-mounted electric energy receiving system set up identify corresponding after, charging location completes;
Step 4: charging monitoring backstage obtains the battery status information of electric automobile by wireless communication mode, starts contactless charging;
Step 5: in charging process, the status data of non-contact charger, electric automobile vehicle state and electric automobile power battery is detected on charging monitoring backstage in real time, by the input power of ground electric energy transmission device and the power output of vehicle-mounted electric energy receiving system, calculate contactless charge efficiency, if charge efficiency is greater than the efficiency minimum of setting, then continue charging, until step 7, otherwise, proceed to step 6;
Step 6: re-start alignment sensor calibration, and move up and down adjustment by regulating longitudinal translation stepping motor to carry out ground electric energy transmission device, change the efficiency of contactless charging until charge efficiency is greater than the efficiency minimum of setting;
Step 7: keep charged state, until charging complete.
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| CN105391145B (en) | 2018-08-10 |
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