CN115384330A - Double-parking-space wireless charging pile and control method thereof - Google Patents

Double-parking-space wireless charging pile and control method thereof Download PDF

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Publication number
CN115384330A
CN115384330A CN202210859017.7A CN202210859017A CN115384330A CN 115384330 A CN115384330 A CN 115384330A CN 202210859017 A CN202210859017 A CN 202210859017A CN 115384330 A CN115384330 A CN 115384330A
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CN
China
Prior art keywords
pole double
throw switch
inverter
primary side
parking
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Pending
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CN202210859017.7A
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Chinese (zh)
Inventor
吴晓锐
唐春森
孙跃
肖静
陈绍南
朱晓宇
韩帅
莫宇鸿
吴宁
龚文兰
陈卫东
郭敏
郭小璇
王智慧
李小飞
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Chongqing University
Electric Power Research Institute of Guangxi Power Grid Co Ltd
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Chongqing University
Electric Power Research Institute of Guangxi Power Grid Co Ltd
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Priority to CN202210859017.7A priority Critical patent/CN115384330A/en
Publication of CN115384330A publication Critical patent/CN115384330A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L53/00Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10Methods 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
    • B60L53/12Inductive energy transfer
    • B60L53/122Circuits or methods for driving the primary coil, e.g. supplying electric power to the coil
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L53/00Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30Constructional details of charging stations
    • B60L53/31Charging columns specially adapted for electric vehicles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L53/00Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60Monitoring or controlling charging stations
    • B60L53/63Monitoring or controlling charging stations in response to network capacity
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L53/00Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60Monitoring or controlling charging stations
    • B60L53/65Monitoring or controlling charging stations involving identification of vehicles or their battery types
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L53/00Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60Monitoring or controlling charging stations
    • B60L53/66Data transfer between charging stations and vehicles
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H02J50/12Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/40Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies relating to charging of electric vehicles
    • Y02T90/12Electric charging stations

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The invention relates to the technical field of wireless charging piles, and particularly discloses a double-parking-position wireless charging pile and a control method thereof, wherein a first switch module is arranged between a first inverter and a first primary side resonant network, a second switch module is arranged between a second inverter and a second primary side resonant network, and 3 leads are also arranged, through controlling the switch states of the first switch module and the second switch module, two vehicles can be charged according to the maximum power under the connection of three leads, when only one vehicle has a charging requirement, the designed wireless charging pile is driven in series through the two inverters, so that the high-power output can be realized, the transmission power of a wireless charging system is expanded on the basis of safe and reliable operation of the system, the power distribution of the wireless charging pile of an electric vehicle is realized, and the transmission efficiency is improved.

Description

Double-parking-space wireless charging pile and control method thereof
Technical Field
The invention relates to the technical field of wireless charging piles, in particular to a double-parking-space wireless charging pile and a control method thereof.
Background
The wireless charging technology utilizes a high-frequency inverter to generate high-frequency alternating current, and the high-frequency alternating current transmits electric energy from a primary coil to a secondary coil under the action of electromagnetic conversion, so that the wireless power supply problem of equipment is solved, and the wireless charging technology is receiving more and more extensive attention in the fields of electric automobiles, rail transit, underwater or underground equipment charging and the like. In the field of wireless charging of electric vehicles, the existing charging facilities mainly use a slow charging pile, the quantity of high-power charging piles capable of providing high-efficiency and quick charging services for social vehicles is small, the increasing charging requirements of the electric vehicles cannot be met, moreover, most of the established charging piles of the electric vehicles are wired charging piles, the defects are prominent, the existing wired charging mode needs manual plugging and unplugging and starting and stopping operations, the intelligentization level is low, and the frequent plugging and unplugging of the charging piles can cause contact wear, and potential safety hazards exist. Therefore, the wireless charging pile is researched by the characteristics of flexibility, convenience, high intellectualization, strong environmental adaptability and the like of charging.
In addition, in the design and application of traditional wireless charging pile, only contain single high frequency inverter, but because switching device's power capacity is limited, single high frequency inverter can not satisfy the power transmission requirement of great power wireless charging electric automobile to the current technique can satisfy the charging demand of most electric automobile, but does not consider the availability factor problem of charging pile, leads to charging pile's utilization ratio on the low side. In the patent of 'a wireless charging parallel resonant cavity, a wireless charging method, a wireless charging coil and a device', the wireless charging parallel resonant cavity is adopted, so that the charging efficiency is improved.
Disclosure of Invention
The invention provides a double-parking-space wireless charging pile and a control method thereof, and solves the technical problems that: how to simply expand wireless charging system's transmission power reliably, realize the wireless power distribution who fills electric pile of electric automobile, promoted transmission efficiency.
In order to solve the technical problems, the invention provides a double-parking-space wireless charging pile which comprises a power grid power supply, a primary side controller, a first parking space power supply line and a second parking space power supply line, wherein the first parking space power supply line and the second parking space power supply line are connected with the power grid power supply in parallel;
the primary side controller is configured to control switching states of the first switching module and the second switching module, so that the first inverter and the second inverter respectively supply power to the first transmitting coil and the second transmitting coil at the same time under connection of the first wire, the second wire and the third wire, or the first inverter and the second inverter are connected in series to supply power to the first transmitting coil or the second transmitting coil.
Specifically, the first switch module comprises a first single-pole double-throw switch, a second single-pole double-throw switch, a third single-pole double-throw switch and a fourth lead; the second switch module comprises a fourth single-pole double-throw switch, a fifth single-pole double-throw switch, a sixth single-pole double-throw switch and a fifth lead;
the fixed end of the first single-pole double-throw switch is connected with the first inversion output end of the first inverter, and the movable end of the first single-pole double-throw switch is connected with the first input end of the first primary side resonant network or the first end of the first lead;
the fixed end of the second single-pole double-throw switch is connected with the second inversion output end of the first inverter, and the movable end of the second single-pole double-throw switch is connected with the first end of the second lead or the first end of the fourth lead;
the fixed end of the third single-pole double-throw switch is connected with the second input end of the first primary side resonant network, and the movable end of the third single-pole double-throw switch is connected with the second end of the fourth wire or the first end of the third wire;
the fixed end of the fourth single-pole double-throw switch is connected with the first inversion output end of the second inverter, and the movable end of the fourth single-pole double-throw switch is connected with the second end of the second lead or the first end of the fifth lead;
a fixed end of the fifth single-pole double-throw switch is connected with a first input end of the second primary-side resonant network, and a movable end of the fifth single-pole double-throw switch is connected with a second end of the first lead or a second end of the fifth lead;
the fixed end of the sixth single-pole double-throw switch is connected with the second inversion output end of the second inverter, and the movable end of the sixth single-pole double-throw switch is connected with the second end of the third wire or the second input end of the second primary side resonant network.
Specifically, the dual-parking-space wireless charging pile is further provided with a first vehicle detector and a second vehicle detector which are connected with the primary side controller, the first vehicle detector and the second vehicle detector are respectively used for detecting whether vehicles stop in the first parking space and the second parking space, if yes, corresponding signals are sent to the primary side controller, and the primary side controller analyzes that when only the vehicles stop in the first parking space, the first inverter and the second inverter are further controlled to be connected in series to supply power to the first transmitting coil together; when only the second parking space is parked with the vehicle, the first inverter and the second inverter are further controlled to be connected in series to supply power for the second transmitting coil; and when the first parking space and the second parking space are analyzed to stop vehicles, the first inverter and the second inverter are controlled to respectively supply power to the first transmitting coil and the second transmitting coil at the same time.
Specifically, the dual-parking-space wireless charging pile is further provided with a primary-side wireless communication module connected with the primary-side controller, and is configured to establish communication connection with a first vehicle parked on the first parking space and/or a second vehicle parked on the second parking space, to receive battery information sent by the first vehicle and/or the second vehicle, to send a charging request to the first vehicle and/or the second vehicle, to receive charging confirmation information sent by the first vehicle and/or the second vehicle, and to send the charging confirmation information to the primary-side controller, where the charging confirmation information is charging on information or charging off information.
Specifically, the primary side controller is further connected with a background server, the primary side controller sends the battery information to the background server, the background server generates the charging request when receiving the battery information, the charging request is a two-dimensional code image instantly generated by the background server, the two-dimensional code image received by the first vehicle and/or the second vehicle is displayed on an automobile center console, the automobile center console scans the two-dimensional code image or a user scans the two-dimensional code image through a mobile terminal, a charge prestoring and charging starting interface can be obtained, the background server sends charging starting information to the primary side controller after the user prestoring payment is completed, and the background server sends charging closing information to the primary side controller after a corresponding charging task is completed or after the user interrupts charging through logging in a specially-configured APP.
Specifically, after receiving the charging closing information, the primary side controller controls the corresponding charging channel to be closed, and the background server calculates the required cost and deducts the cost from the cost prestored by the user; the required cost calculated by the background server is calculated according to a formula:
COST=T1*A+T2*B,
wherein COST represents the calculated required COST, T1 represents the charging time length when only the first inverter or the second inverter supplies power, A is the corresponding unit price, T1 represents the charging time length when the first inverter and the second inverter are connected in series to supply power together, and B is the corresponding unit price.
The invention also provides a control method of the double-parking-space wireless charging pile, which comprises the following steps:
s1, the primary side controller controls the switching states of the first switching module and the second switching module to be initial states, so that the first inverter and the second inverter cannot output electric energy to the first parking space or the second parking space;
s2, the primary side controller judges whether a charging starting signal for supplying power to the first parking space and/or the first parking space is received or not, if so, the step S3 is executed if the charging starting signal only needs to supply power to the first parking space correspondingly, if so, the step S4 is executed if the charging starting signal only needs to supply power to the first parking space and the second parking space simultaneously correspondingly, if so, the step S5 is executed if the charging starting signal only needs to supply power to the second parking space correspondingly, and if not, the step S1 is returned to;
s3, controlling the switching state of the first switching module and the second switching module to be a first switching state, so that the first inverter and the second inverter are connected in series to supply power to the first transmitting coil;
s5, controlling the switching state of the first switching module and the second switching module to be a third switching state, so that the first inverter and the second inverter are connected in series to supply power to the second transmitting coil;
and S5, controlling the switching state of the first switching module and the second switching module to be a second switching state, so that the first inverter and the second inverter respectively supply power to the first transmitting coil and the second transmitting coil.
Further, the step S3 specifically includes: the primary side controller controls the movable end of the first single-pole double-throw switch to be connected with the first input end of the first primary side resonant network, the movable end of the second single-pole double-throw switch is connected with the first end of the second lead, the movable end of the third single-pole double-throw switch is connected with the first end of the third lead, the movable end of the fourth single-pole double-throw switch is connected with the second end of the second lead, the movable end of the fifth single-pole double-throw switch is randomly connected, and the movable end of the sixth single-pole double-throw switch is connected with the first end of the third lead.
Further, the step S4 specifically includes: the primary side controller controls the movable end of the first single-pole double-throw switch to be connected with the first input end of the first primary side resonance network, the movable end of the second single-pole double-throw switch is connected with the first end of the fourth wire, the movable end of the third single-pole double-throw switch is connected with the second end of the fourth wire, the movable end of the fourth single-pole double-throw switch is connected with the first end of the fifth wire, the movable end of the fifth single-pole double-throw switch is connected with the second end of the fifth wire, and the movable end of the sixth single-pole double-throw switch is connected with the second input end of the second primary side resonance network.
Further, the step S5 specifically includes: the primary side controller controls the movable end of the first single-pole double-throw switch to be connected with the first end of the first lead, the movable end of the second single-pole double-throw switch to be connected with the first end of the second lead, the movable end of the third single-pole double-throw switch is randomly connected, the movable end of the fourth single-pole double-throw switch is connected with the second end of the second lead, the movable end of the fifth single-pole double-throw switch is connected with the second end of the first lead, and the movable end of the sixth single-pole double-throw switch is connected with the second input end of the second primary side resonant network.
The invention provides a double-parking-position wireless charging pile and a control method thereof, and in view of the problem of the use efficiency of the charging pile, a first switch module is arranged between a first inverter and a first primary resonant network, a second switch module is arranged between a second inverter and a second primary resonant network, and 3 leads are also arranged.
Drawings
Fig. 1 is a circuit topology diagram of a dual-parking-space wireless charging pile according to an embodiment of the present invention;
FIG. 2 is a first connection state diagram of FIG. 1 provided by an embodiment of the present invention;
FIG. 3 is a second connection state diagram of FIG. 1 provided by an embodiment of the present invention;
fig. 4 is a third connection state diagram of fig. 1 according to an embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, which are given solely for the purpose of illustration and are not to be construed as limitations of the present invention, including reference to and illustration of the accompanying drawings, which are not to be construed as limitations of the scope of the invention, since many variations thereof are possible without departing from the spirit and scope of the invention.
The embodiment of the invention provides a double-parking-space wireless charging pile, which comprises a power grid power supply, a primary side controller, a first parking space power supply line and a second parking space power supply line, wherein the first parking space power supply line and the second parking space power supply line are connected with the power grid power supply in parallel, and the first parking space power supply line comprises a first inverter, a first switch module, a first primary side resonant network and a first transmitting coil (L) which are sequentially connected P1 ) The second station power supply line comprises a second inverter, a second switch module, a second primary resonant network and a second transmitting coil (L) which are connected in sequence P2 ) The double-parking-space wireless charging pile further comprises a first wire, a second wire and a third wire which are connected between the first switch module and the second switch module, and the first transmitting coil and the second transmitting coil are respectively installed on the first parking space and the second parking space.
The primary side controller is used for controlling the switching states of the first switching module and the second switching module, so that the first inverter and the second inverter respectively supply power to the first transmitting coil and the second transmitting coil at the same time under the connection of the first lead, the second lead and the third lead, or the first inverter and the second inverter are connected in series to supply power to the first transmitting coil or the second transmitting coil together.
Wherein each transmitting coil and its resonant network are designed according to a maximum power.
As a specific example, as shown in fig. 1, the first switch module includes a first single-pole double-throw switch S1, a second single-pole double-throw switch S2, a third single-pole double-throw switch S3, and a fourth wire; the second switch module includes a fourth single pole double throw switch S4, a fifth single pole double throw switch S5, a sixth single pole double throw switch S6, and a fifth wire.
The fixed end of the first single-pole double-throw switch S1 is connected with the first inversion output end of the first inverter, and the movable end of the first single-pole double-throw switch S1 is connected with the first input end 1a of the first primary side resonant network or the first end 1b of the first lead.
The fixed end of the second single-pole double-throw switch S2 is connected with the second inversion output end of the first inverter, and the movable end of the second single-pole double-throw switch S2 is connected with the first end 2b of the second lead or the first end 2a of the fourth lead.
The fixed end of the third single-pole double-throw switch S3 is connected to the second input end of the first primary side resonant network, and the movable end of the third single-pole double-throw switch S3 is connected to the second end 3a of the fourth wire or the first end 3b of the third wire.
The fixed end of the fourth single-pole double-throw switch S4 is connected with the first inversion output end of the second inverter, and the movable end of the fourth single-pole double-throw switch S4 is connected with the second end 4a of the second lead or the first end 4b of the fifth lead;
the fixed end of the fifth single-pole double-throw switch S5 is connected with the first input end of the second primary side resonant network, and the movable end of the fifth single-pole double-throw switch S5 is connected with the second end 5a of the first lead or the second end 5b of the fifth lead;
the fixed end of the sixth single-pole double-throw switch S6 is connected to the second inverting output end of the second inverter, and the movable end of the sixth single-pole double-throw switch S6 is connected to the second end 6a of the third wire or the second input end 6b of the second primary-side resonant network.
Specifically, the double-parking-space wireless charging pile is further provided with a first vehicle detector and a second vehicle detector which are connected with a primary side controller, the first vehicle detector and the second vehicle detector are respectively used for detecting whether vehicles stop at a first parking space and a second parking space, if yes, corresponding signals are sent to the primary side controller, and the primary side controller analyzes that when only the vehicles stop at the first parking space, the first inverter and the second inverter are further controlled to be connected in series to supply power for a first transmitting coil; when only the second parking space is parked by the vehicle, the first inverter and the second inverter are further controlled to be connected in series to supply power for the second transmitting coil; when the fact that vehicles stop in the first parking space and the second parking space is analyzed, the first inverter and the second inverter are controlled to respectively supply power to the first transmitting coil and the second transmitting coil at the same time. In this situation, the corresponding line is opened as long as it is detected that a vehicle stops at the corresponding parking space, which causes resource waste.
Further, the dual-parking-space wireless charging pile needs to have a more complex configuration, and specifically, the dual-parking-space wireless charging pile is further provided with a primary side wireless communication module connected with the primary side controller, and is used for establishing communication connection with a first vehicle parked on the first parking space and/or a second vehicle parked on the second parking space, so as to receive battery information sent by the first vehicle and/or the second vehicle, send a charging request to the first vehicle and/or the second vehicle, receive charging confirmation information sent by the first vehicle and/or the second vehicle, and send the charging confirmation information to the primary side controller, where the charging confirmation information is charging on information or charging off information. The corresponding battery information and the charging opening information or the charging closing information are obtained through the primary side wireless communication module, so that the battery charging system is opened only when charging is needed, and resource waste is avoided. The charging on information or the charging off information is automatically sent by the vehicle-mounted terminal according to the program setting.
For the double-parking-space wireless charging pile needing paying for use, the primary side controller is further connected with a background server, the primary side controller sends battery information to the background server, the background server generates a charging request when receiving the battery information, the charging request is a two-dimensional code image generated by the background server in real time, the two-dimensional code image received by a first vehicle and/or a second vehicle is displayed on an automobile central console (or a display screen arranged at the position of the double-parking-space wireless charging pile), the automobile central console scans or a user scans through a mobile terminal, a charge prestoring and charging opening interface can be obtained, after the user prestoring payment is completed, the background server sends charging opening information to the primary side controller, after the electric automobile is fully charged, the electric automobile sends charging closing information to the primary side wireless communication module, or after the user interrupts charging through logging in a special APP, the background server sends charging closing information to the primary side controller. Directly show the two-dimensional code at car center console, the user can confirm on the car to open and charge, and then get off the operation such as accessible mobile terminal visit APP after and look over the progress of charging and take interruption charging, facilitate for the user.
After receiving the charging closing information, the primary side controller controls the corresponding charging channel to be closed, and the background server calculates the required cost and deducts the cost from the cost prestored by the user; the required cost for the background server is calculated according to the formula:
COST=T1*A+T2*B,
wherein COST represents the calculated required COST, T1 represents the charging time length when only the first inverter or the second inverter supplies power, A is the corresponding unit price, T1 represents the charging time length when the first inverter and the second inverter are connected in series to supply power together, and B is the corresponding unit price.
In other embodiments, the required cost may be calculated according to other rules, such as by time, or by volume.
The embodiment adopts the expense pre-storage mode, so that the phenomenon that the user does not trust caused by using the payment mode after consuming can be avoided, and the pre-stored expense user who does not consume can take out the expense at any time.
For the system shown in fig. 1, the invention further provides a control method of the dual-parking-space wireless charging pile, which comprises the following steps:
s1, a primary side controller controls the switching states of a first switching module and a second switching module to be initial states, so that a first inverter and a second inverter cannot output electric energy to a first parking space or a second parking space;
s2, the primary side controller judges whether a charging opening signal for supplying power to a first parking space and/or supplying power to the first parking space is received, if so, the step S3 is executed if the charging opening signal corresponds to only the first parking space, if so, the step S4 is executed if the charging opening signal corresponds to only the second parking space, if so, the step S5 is executed if the charging opening signal corresponds to only the second parking space and simultaneously needs to supply power to the first parking space and the second parking space, otherwise, the step S1 is returned to;
s3, controlling the switching state of the first switching module and the second switching module to be a first switching state, so that the first inverter and the second inverter are connected in series to jointly supply power to the first transmitting coil;
s4, controlling the switching state of the first switching module and the second switching module to be a second switching state, so that the first inverter and the second inverter respectively supply power to the first transmitting coil and the second transmitting coil;
and S5, controlling the switching state of the first switching module and the second switching module to be a third switching state, so that the first inverter and the second inverter are connected in series to supply power for the second transmitting coil.
Wherein, the step S3 specifically comprises: the primary side controller controls the active end of the first single-pole double-throw switch S1 to be connected with the first input end 1a of the first primary side resonant network, the active end of the second single-pole double-throw switch S2 to be connected with the first end 2b of the second wire, the active end of the third single-pole double-throw switch S3 to be connected with the first end 3b of the third wire, the active end of the fourth single-pole double-throw switch S4 to be connected with the second end 4a of the second wire, the active end of the fifth single-pole double-throw switch S5 to be randomly connected, and the active end of the sixth single-pole double-throw switch S6 to be connected with the first end 6a of the third wire, as shown in fig. 2.
Wherein, the step S4 specifically comprises the following steps: the primary side controller controls the active end of the first single-pole double-throw switch S1 to be connected with the first input end 1a of the first primary side resonant network, the active end of the second single-pole double-throw switch S2 to be connected with the first end 2a of the fourth wire, the active end of the third single-pole double-throw switch S3 to be connected with the second end 3a of the fourth wire, the active end of the fourth single-pole double-throw switch S4 to be connected with the first end 4b of the fifth wire, the active end of the fifth single-pole double-throw switch S5 to be connected with the second end 5b of the fifth wire, and the active end of the sixth single-pole double-throw switch S6 to be connected with the second input end 6b of the second primary side resonant network, as shown in fig. 3.
Wherein, the step S5 specifically comprises the following steps: the primary side controller controls the movable end of the first single-pole double-throw switch S1 to be connected with the first end 1b of the first wire, the movable end of the second single-pole double-throw switch S2 to be connected with the first end 2b of the second wire, the movable end of the third single-pole double-throw switch S3 to be connected at will, the movable end of the fourth single-pole double-throw switch S4 to be connected with the second end 4a of the second wire, the movable end of the fifth single-pole double-throw switch S5 to be connected with the second end 5a of the first wire, and the movable end of the sixth single-pole double-throw switch S6 to be connected with the second input end 6b of the second primary side resonant network, as shown in fig. 4.
In step S1, the controlling, by the primary side controller, the switching states of the first switching module and the second switching module to be initial states specifically includes:
the primary side controller controls the movable end of a first single-pole double-throw switch S1 to be connected with a first input end 1a of a first primary side resonance network, the movable end of a second single-pole double-throw switch S2 to be connected with a first end 2b of a second lead wire, the movable end of a third single-pole double-throw switch S3 to be connected with a second end 3a of a fourth lead wire, the movable end of a fourth single-pole double-throw switch S4 to be connected with a second end 4a of the second lead wire, the movable end of a fifth single-pole double-throw switch S5 to be connected with a second end 5a of the first lead wire, and the movable end of a sixth single-pole double-throw switch S6 to be connected with a second end 6a of the third lead wire.
To sum up, in consideration of the problem of the use efficiency of the charging pile, the embodiment of the invention provides a dual-parking-position wireless charging pile and a control method thereof, wherein a first switch module is arranged between a first inverter and a first primary resonant network, a second switch module is arranged between a second inverter and a second primary resonant network, and 3 leads are also arranged, and by controlling the on-off states of the first switch module and the second switch module, two vehicles can be charged according to the maximum power under the connection of three leads.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.

Claims (10)

1. A double-parking-space wireless charging pile is characterized by comprising a power grid power supply, a primary side controller, a first parking space power supply line and a second parking space power supply line, wherein the first parking space power supply line and the second parking space power supply line are connected with the power grid power supply in parallel;
the primary side controller is configured to control switching states of the first switch module and the second switch module, so that the first inverter and the second inverter respectively supply power to the first transmitting coil and the second transmitting coil at the same time under connection of the first wire, the second wire and the third wire, or the first inverter and the second inverter are connected in series to jointly supply power to the first transmitting coil or the second transmitting coil.
2. The dual-parking-space wireless charging pile according to claim 1, wherein the first switch module comprises a first single-pole double-throw switch, a second single-pole double-throw switch, a third single-pole double-throw switch and a fourth wire; the second switch module comprises a fourth single-pole double-throw switch, a fifth single-pole double-throw switch, a sixth single-pole double-throw switch and a fifth lead;
the fixed end of the first single-pole double-throw switch is connected with the first inversion output end of the first inverter, and the movable end of the first single-pole double-throw switch is connected with the first input end of the first primary side resonant network or the first end of the first lead;
the fixed end of the second single-pole double-throw switch is connected with the second inversion output end of the first inverter, and the movable end of the second single-pole double-throw switch is connected with the first end of the second lead or the first end of the fourth lead;
a fixed end of the third single-pole double-throw switch is connected with a second input end of the first primary side resonant network, and a movable end of the third single-pole double-throw switch is connected with a second end of the fourth wire or a first end of the third wire;
the fixed end of the fourth single-pole double-throw switch is connected with the first inversion output end of the second inverter, and the movable end of the fourth single-pole double-throw switch is connected with the second end of the second lead or the first end of the fifth lead;
a fixed end of the fifth single-pole double-throw switch is connected with a first input end of the second primary-side resonant network, and a movable end of the fifth single-pole double-throw switch is connected with a second end of the first lead or a second end of the fifth lead;
the fixed end of the sixth single-pole double-throw switch is connected with the second inversion output end of the second inverter, and the movable end of the sixth single-pole double-throw switch is connected with the second end of the third wire or the second input end of the second primary side resonant network.
3. The dual-parking-space wireless charging pile according to claim 2, characterized in that: the double-parking-space wireless charging pile is further provided with a first vehicle detector and a second vehicle detector which are connected with the primary side controller, the first vehicle detector and the second vehicle detector are respectively used for detecting whether vehicles stop at the first parking space and the second parking space, if yes, corresponding signals are sent to the primary side controller, and the primary side controller further controls the first inverter and the second inverter to be connected in series to supply power to the first transmitting coil together when analyzing that only the first parking space has the vehicles to stop; when only the second parking space is parked with the vehicle, the first inverter and the second inverter are further controlled to be connected in series to supply power for the second transmitting coil; and when the first parking space and the second parking space are analyzed to stop vehicles, the first inverter and the second inverter are controlled to respectively supply power to the first transmitting coil and the second transmitting coil at the same time.
4. The dual-parking-space wireless charging pile according to claim 3, characterized in that: the double-parking-space wireless charging pile is further provided with a primary side wireless communication module connected with the primary side controller, and the primary side wireless communication module is used for establishing communication connection with a first vehicle parked on the first parking space and/or a second vehicle parked on the second parking space, receiving battery information sent by the first vehicle and/or the second vehicle, sending a charging request to the first vehicle and/or the second vehicle, receiving charging confirmation information sent by the first vehicle and/or the second vehicle and sending the charging confirmation information to the primary side controller, wherein the charging confirmation information is charging opening information or charging closing information.
5. The dual-parking-space wireless charging pile according to claim 4, characterized in that: the primary side controller is further connected with a background server, the primary side controller sends battery information to the background server, the background server generates a charging request when receiving the battery information, the charging request is a two-dimensional code image generated by the background server instantly, the two-dimensional code image is received by the first vehicle and/or the second vehicle and displayed on an automobile center console, the automobile center console scans or a user scans through a mobile terminal, a charge prestoring and charging opening interface can be obtained, the background server sends charging opening information to the primary side controller after the user prestores payment, and the background server sends charging closing information to the primary side controller after a corresponding charging task is completed or after the user interrupts charging through logging in a specially-established APP.
6. The dual-parking-space wireless charging pile according to claim 5, wherein the primary side controller controls the corresponding charging channel to be closed after receiving charging closing information, and the background server calculates the required cost and deducts the cost from the cost prestored by a user; the required calculation cost of the background server is calculated according to the formula:
COST=T1*A+T2*B,
wherein COST represents the calculated required COST, T1 represents the charging time length when only the first inverter or the second inverter supplies power, A is the corresponding unit price, T1 represents the charging time length when the first inverter and the second inverter are connected in series to supply power together, and B is the corresponding unit price.
7. The method for controlling the dual-parking-space wireless charging pile according to any one of claims 3 to 6, characterized by comprising the following steps:
s1, the primary side controller controls the switching states of the first switching module and the second switching module to be initial states, so that the first inverter and the second inverter cannot output electric energy to the first parking space or the second parking space;
s2, the primary side controller judges whether a charging starting signal for supplying power to the first parking space and/or the first parking space is received, if so, the step S3 is executed if the charging starting signal corresponds to the situation that only power needs to be supplied to the first parking space, if so, the step S4 is executed if the charging starting signal corresponds to the situation that power needs to be supplied to the first parking space and the second parking space simultaneously, if so, the step S5 is executed if the charging starting signal corresponds to the situation that only power needs to be supplied to the second parking space, and if not, the step S1 is returned to;
s3, controlling the switching state of the first switching module and the second switching module to be a first switching state, so that the first inverter and the second inverter are connected in series to supply power to the first transmitting coil;
s5, controlling the switching state of the first switching module and the second switching module to be a third switching state, so that the first inverter and the second inverter are connected in series to supply power to the second transmitting coil;
and S5, controlling the switching state of the first switching module and the second switching module to be a second switching state, so that the first inverter and the second inverter respectively supply power to the first transmitting coil and the second transmitting coil.
8. The method as claimed in claim 7, wherein the method further comprises the step of controlling the dual-parking-space wireless charging pile, it is characterized in that the preparation method is characterized in that,
the step S3 specifically comprises the following steps: the primary side controller controls the movable end of the first single-pole double-throw switch to be connected with the first input end of the first primary side resonant network, the movable end of the second single-pole double-throw switch is connected with the first end of the second lead, the movable end of the third single-pole double-throw switch is connected with the first end of the third lead, the movable end of the fourth single-pole double-throw switch is connected with the second end of the second lead, the movable end of the fifth single-pole double-throw switch is randomly connected, and the movable end of the sixth single-pole double-throw switch is connected with the first end of the third lead.
9. The method as claimed in claim 7, wherein the method further comprises the step of controlling the dual-parking-space wireless charging pile, it is characterized in that the preparation method is characterized in that,
the step S4 specifically comprises the following steps: the primary side controller controls the movable end of the first single-pole double-throw switch to be connected with the first input end of the first primary side resonant network, the movable end of the second single-pole double-throw switch to be connected with the first end of the fourth wire, the movable end of the third single-pole double-throw switch to be connected with the second end of the fourth wire, the movable end of the fourth single-pole double-throw switch to be connected with the first end of the fifth wire, the movable end of the fifth single-pole double-throw switch to be connected with the second end of the fifth wire, and the movable end of the sixth single-pole double-throw switch to be connected with the second input end of the second primary side resonant network.
10. The method for controlling the dual-parking-space wireless charging pile according to claim 7, wherein the method comprises the following steps:
the step S5 specifically comprises the following steps: the primary side controller controls the movable end of the first single-pole double-throw switch to be connected with the first end of the first lead, the movable end of the second single-pole double-throw switch to be connected with the first end of the second lead, the movable end of the third single-pole double-throw switch is randomly connected, the movable end of the fourth single-pole double-throw switch is connected with the second end of the second lead, the movable end of the fifth single-pole double-throw switch is connected with the second end of the first lead, and the movable end of the sixth single-pole double-throw switch is connected with the second input end of the second primary side resonant network.
CN202210859017.7A 2022-07-21 2022-07-21 Double-parking-space wireless charging pile and control method thereof Pending CN115384330A (en)

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