A power transmission device based on dynamic wireless vehicle-to-vehicle charging technology

By utilizing a dynamic wireless vehicle-to-vehicle charging technology with a power transfer device that employs a 3D transmitting coil and radar data unit, combined with autonomous driving technology, the safety issues of conductive charging and the poor positional adaptability of wireless power transmission are resolved, enabling efficient, convenient, and safe power transmission during vehicle operation.

CN116572768BActive Publication Date: 2026-04-24HEBEI UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HEBEI UNIV OF TECH
Filing Date
2023-04-23
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing conductive vehicle charging technologies have safety issues such as carbon buildup and wear leading to short circuits, and wireless power transfer is not commonly used in dynamic charging applications, has poor location adaptability, and affects charging efficiency.

Method used

A power transfer device based on dynamic wireless vehicle-to-vehicle charging technology is adopted. It uses a 3D transmitting coil and radar data unit to realize the power transfer of the vehicle during the driving process, and combines autonomous driving technology to achieve automatic coil alignment and position adaptive control.

Benefits of technology

It enables efficient, convenient and safe power transmission during vehicle operation, improves anti-deviation and charging efficiency, and alleviates the pressure on the power grid and the driver's range anxiety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides a kind of energy transmission device based on dynamic wireless vehicle-to-vehicle charging technology, including transmitting unit, receiving unit and radar data unit;Transmitting unit includes transmitting coil, receiving unit includes receiving coil;Radar data unit includes radar sensing module, data planning module, for judging the position of receiving coil on the vehicle to be charged, and the data planning module is used to control the coil according to the information collected by the radar sensing module.The beneficial effects of the present application are as follows: a kind of energy transmission device based on dynamic wireless vehicle-to-vehicle charging technology, realizes the energy exchange between electric vehicles and another electric vehicle, and better overcomes the problem of efficiency reduction caused by coil offset, provides real-time and convenience for wireless electric energy charging, and has broad market prospect.
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Description

Technical Field

[0001] This invention belongs to the field of wireless power transmission, and in particular relates to a power transmission device based on dynamic wireless vehicle-to-vehicle charging technology. Background Technology

[0002] Most existing vehicle-to-vehicle (V2V) charging technologies are based on conductive charging, which can lead to various safety issues such as carbon buildup and aging of wiring, short circuits due to wiring wear, and limited charging location. Currently, vehicle charging based on wireless power transfer is mostly used in vehicle-to-grid (V2G) charging technology. This indicates that wireless power transfer technology is not commonly used in V2V applications, especially in dynamic charging. Furthermore, ordinary wireless power transfer coil devices have extremely high requirements for the coil's (vehicle's) position; position adaptability is a crucial indicator affecting vehicle charging efficiency.

[0003] Therefore, there is an urgent need for a wireless charging device with high anti-offset performance to be applied to dynamic V2V technology, so as to meet the needs of convenient, real-time and efficient vehicle charging, alleviate the pressure on the power grid, and solve the driver's "range anxiety". Summary of the Invention

[0004] In view of this, the present invention aims to propose an energy transfer device based on dynamic wireless vehicle-to-vehicle charging technology, which enables the vehicle to continue transmitting electrical energy while in motion, making vehicle charging more convenient and emergency-ready; it can be combined with autonomous driving technology to make driving more efficient and safe; and the vehicle's coil device is different from the traditional 2D coil device for wireless power transmission. Its special three-dimensional structure can effectively improve the anti-offset of the entire transmission system and ensure the stability of power transmission.

[0005] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0006] A power transfer device based on dynamic wireless vehicle-to-vehicle charging technology includes a transmitting unit, a receiving unit, and a radar data unit.

[0007] The transmitting unit includes a transmitting coil, and the receiving unit includes a receiving coil;

[0008] The radar data unit includes a radar sensing module and a data planning module. The radar sensing module is used to determine the position of the receiving coil on the vehicle to be charged, and the data planning module is used to control the operation of the coil based on the information collected by the radar sensing module.

[0009] Furthermore, the transmitting coil is installed on the power supply vehicle, and the receiving coil is installed on the vehicle to be charged; or the transmitting coil and the receiving coil are installed on the same vehicle.

[0010] Furthermore, the vehicle is equipped with an electrical control unit, which includes a transmitting part and a receiving part;

[0011] The electrical control unit of the transmitter includes a vehicle battery pack, a V2V discharge control module, and a PFC+ inverter module connected in sequence, and is connected to the transmitter unit through the PFC+ inverter module;

[0012] The electrical control unit of the receiving section includes a vehicle battery pack V2V charging control module, a rectifier, and a transmission module connected in sequence, and the receiving unit is connected through the rectifier and the transmission module.

[0013] Furthermore, the radar data unit includes interconnected switch controller and circuit breaker modules, and the radar data unit is connected to the PFC+ inverter module through the switch controller and to the transmitting unit through the radar data unit.

[0014] Furthermore, the transmitting unit includes a 3D transmitting coil, which outputs electrical energy to the receiving unit through an electromagnetic field.

[0015] Furthermore, multiple transmitting coils form a 3D transmitting coil, and the radar data unit controls the opening and closing of each transmitting coil through a switch controller.

[0016] Furthermore, this solution discloses an electronic device, including a processor and a memory communicatively connected to the processor and used to store executable instructions of the processor, wherein the processor is used to execute an energy transfer method based on dynamic wireless vehicle-to-vehicle charging technology.

[0017] Furthermore, this solution discloses a server, including at least one processor and a memory communicatively connected to the processor, the memory storing instructions executable by the at least one processor, the instructions being executed by the processor to cause the at least one processor to perform an energy transfer method based on dynamic wireless vehicle-to-vehicle charging technology.

[0018] Furthermore, this solution discloses a computer-readable storage medium storing a computer program, which, when executed by a processor, implements an energy transfer method based on dynamic wireless vehicle-to-vehicle charging technology.

[0019] Furthermore, this solution discloses a power transfer method based on dynamic wireless vehicle-to-vehicle charging technology, and a power transfer device based on dynamic wireless vehicle-to-vehicle charging technology, comprising the following steps:

[0020] S1. The sensing system in the charging vehicle radar data system scans the position of the receiving coil of the vehicle in front and obtains the position data of the receiving coil.

[0021] S2. The perception system uploads the position data of the front vehicle coil to the planning system. The planning system, with the goal of maximizing energy utilization, controls the opening and closing of each transmitting coil through the switch controller. At this time, the vehicle based on the autonomous driving function reaches the designated position to prepare for V2V charging. If the vehicle's position shifts due to force majeure during the driving process, the discharge vehicle radar data system will recalculate the real-time position of the front vehicle coil and reasonably control the on and off of different transmitting coils to complete the charging.

[0022] S3. The V2V discharge control module inside the charging vehicle is activated, and the vehicle body discharge circuit is connected.

[0023] S4. The electrical energy generated by the battery pack inside the charging vehicle is connected to the PFC+ inverter module through wires. At this time, while stabilizing the power factor, the current is converted from DC to AC at the required frequency.

[0024] S5. AC power is connected to the 3D transmitting coil for electromagnetic coupling to release energy to the outside.

[0025] S6. The V2V charging control module inside the vehicle to be charged is activated, and the vehicle body charging circuit is connected.

[0026] S7. The receiving coil of the vehicle to be charged converts the magnetic field energy in the space into alternating current. The electrical energy is connected to the rectifier + transmission module through the wire. At this time, the current is converted from alternating current to direct current of the required frequency.

[0027] S8. Direct current is connected to the battery pack inside the vehicle to be charged via a wire to complete V2V charging.

[0028] Compared with existing technologies, the energy transfer device based on dynamic wireless vehicle-to-vehicle charging technology described in this invention has the following advantages:

[0029] (1) The energy transfer device based on dynamic wireless vehicle-to-vehicle charging technology described in this invention realizes energy exchange between electric vehicles and other electric vehicles, and better overcomes the problem of reduced efficiency caused by coil offset, providing real-time and convenient wireless power charging, and has broad market prospects.

[0030] (2) The energy transfer device based on dynamic wireless vehicle-to-vehicle charging technology described in this invention can be applied to the field of transportation based on wireless power transmission, especially suitable for wireless charging of electric vehicles. It has strong adaptability and wide application.

[0031] (3) The energy transmission device based on dynamic wireless vehicle-to-vehicle charging technology described in this invention enables the vehicle to transmit electrical energy while driving, making vehicle charging more convenient and emergency-ready; it is often combined with autonomous driving technology to make driving more efficient and safe; and the vehicle's coil device is different from the traditional 2D coil device for wireless power transmission. Its special three-dimensional structure can effectively improve the anti-offset of the entire transmission system and ensure the stability of power transmission. Attached Figure Description

[0032] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0033] Figure 1 This is a schematic diagram of the working principle of the present invention;

[0034] Figure 2 This is a system structure diagram of the present invention;

[0035] Figure 3 This invention relates to the radar data system;

[0036] Figure 4 This is a structural diagram of the receiving coil of the present invention;

[0037] Figure 5 This is a structural diagram of the transmitting coil of the present invention;

[0038] Figure 6 This is a top view structural diagram of the transmitting coil layout of the present invention;

[0039] Figure 7 This is a three-dimensional structural schematic diagram of the vehicle front launching mechanism of the present invention;

[0040] Figure 8 This is a schematic diagram of the structure of the vehicle front launching mechanism of the present invention;

[0041] Figure 9 This is a schematic diagram showing the specific location of the vehicle front launching mechanism of the present invention;

[0042] Figure 10 This is a magnetic field simulation diagram of the launching mechanism of the present invention.

[0043] Explanation of reference numerals in the attached figures:

[0044] 1-Vehicle battery pack; 2-V2V discharge control module; 3-PFC + inverter module; 4-3D transmitting coil; 5-V2V charging control module; 6-Rectifier and transmission module; 7-Receiving coil; 8-Electromagnetic field; 9-Switch controller; 10-Circuit breaker module and radar data unit. Detailed Implementation

[0045] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0046] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0047] This patent belongs to the field of wireless power transmission, enabling energy exchange between electric vehicles and better overcoming the efficiency reduction problem caused by coil misalignment. It provides real-time and convenient wireless charging, and has broad market prospects. This patent can be applied to the transportation sector based on wireless power transmission, and is particularly suitable for wireless charging of electric vehicles, demonstrating strong adaptability and wide applicability.

[0048] As environmental problems caused by traditional gasoline-powered vehicles intensify, sales of electric vehicles have been rising year by year. Meanwhile, to alleviate the pressure on the power grid for vehicle charging and to address drivers' "range anxiety," vehicle-to-vehicle (V2V) charging technology has emerged. However, current conductive charging technology is prone to safety issues such as carbon buildup, wear, and short circuits, and it is difficult to achieve energy transfer while the vehicle is in motion.

[0049] This invention enables vehicles to transmit electrical energy while in motion, making vehicle charging more convenient and emergency-ready; it can be combined with autonomous driving technology to make driving more efficient and safer; and the vehicle's coil device is different from the traditional 2D coil device for wireless power transmission. Its special three-dimensional structure can effectively improve the anti-offset of the entire transmission system and ensure the stability of power transmission.

[0050] Existing vehicle-to-vehicle (V2V) charging technologies are mostly based on conductive charging, which can lead to various safety issues such as carbon buildup and aging of wiring, short circuits due to wire wear, and limited charging location. Currently, vehicle charging based on wireless power transfer is primarily used in vehicle-to-grid (V2G) technology, indicating that wireless power transfer technology is not commonly used in V2V applications, especially in dynamic charging. Ordinary wireless power transfer coil devices have extremely high requirements for the coil's (vehicle's) position; position adaptability is a crucial indicator affecting vehicle charging efficiency. Therefore, there is an urgent need for a wireless charging device with high anti-misalignment performance for use in dynamic V2V technology to meet the needs of convenient, real-time, and efficient vehicle charging, alleviate grid power supply pressure, and address drivers' "range anxiety."

[0051] The main problem this invention aims to solve is to improve existing conductive V2V technology to achieve wireless V2V technology, thereby meeting the dynamic charging needs of vehicles. The energy transfer coil mechanism installed on the vehicle body is improved to give the new structure better anti-deviation performance, enabling the charging vehicle to have higher position adaptability and improving charging efficiency. This technology is then combined with autonomous driving technology to achieve efficient and safe travel.

[0052] The 3D transmitting coil 4, the basic unit coil, and the planar receiving coil 7 are wound as single-layer square coils, using Litz wire wound 7 turns. The 3D transmitting mechanism is based on the Toyota bZ3 new energy vehicle as an example, with overall dimensions of 4725x1835x1475mm. Due to the streamlined structure of the car, the center of the front is slightly lower than the center of the rear. Considering the vehicle dimensions and bumper position, the transmitting structure is placed in front of the license plate, with the license plate slightly recessed into the body. The transmitting structure is located at its front end, and a PET protective shell is added to the outside of the transmitting mechanism. The license plate is made of ABS plastic. Similarly, the receiving coil 7 is placed in the space in front of the rear license plate, with the license plate position, the relative position of the receiving coil 7, and the material similar to the front. Considering the national standard license plate size of 440mm×140mm, the receiving coil 7 has dimensions of 800 / 230mm. The transmitting coil is folded in three directions based on the curved structure of the vehicle's front end, conforming to the shape of the vehicle body as closely as possible without affecting the position of other components. Viewed from above, the three coils of the transmitting coil present an inverted C-shape, consisting of three unit coils. The middle unit coil measures 600 / 230mm, while the two outer unit coils measure 125 / 230mm. The obtuse angle between the outer and middle unit coils is 143.13°.

[0053] According to the national standard GB / T 38775.1-2020, which specifies electromagnetic radiation standards for the human body, a ferrite core is placed behind the coil to concentrate the magnetic field and reduce the harm of electromagnetic radiation to the human body.

[0054] The patent focuses on V2V charging, thus ignoring the V2G charging coil and its associated devices located at the bottom of the vehicle.

[0055] The V2V charging device comprises four main parts: a transmitting unit, a receiving coil 7, a wireless charging electrical control section, and a radar data unit. These are further subdivided into: a vehicle battery pack 1; a V2V discharge control module 2; a PFC + inverter module; a 3D transmitting coil 4; a V2V charging control module 5; a rectifier and transmission module 6; a receiving coil 7; an electromagnetic field 8; a switch controller 9; a circuit breaker module; and a radar data unit 10. The vehicle wireless charging and discharging electrical system operates on the same principle as ordinary wireless charging and discharging, and will not be elaborated upon here. Furthermore, the radar data unit is part of the autonomous driving system, and will not be detailed here. The main focus is on the working relationship between the radar data module and the transmitting structure: the radar sensing module in the radar data unit determines the position of the coil of the vehicle to be charged and uploads the data to the data planning system. The data planning system determines which two of the three coils of the transmitting mechanism are in working condition based on the position of the coil of the vehicle to be charged. The planning system converts the instructions into signals and inputs them to the switch controller 9. The controller then controls the circuit breakers of the three coils to open and close, designating the coils to operate. The 3D coil, due to its special three-dimensional structure, can effectively enhance the position adaptability of vehicle charging. The magnetic field generated by the coil will be wider and more uniform than that generated by ordinary 2D coils, thus improving the position adaptability and transmission efficiency during dynamic charging.

[0056] The aforementioned energy transfer devices are often combined with autonomous driving technology to achieve automatic coil alignment, eliminating the need for imprecise manual control. Furthermore, due to the special structure of the transmitting coil, the offset error caused by uncontrollable factors can be reduced.

[0057] like Figure 1 As shown, vehicles AB complete V2V energy transfer through energy transfer coils located at the front and rear of the vehicles.

[0058] like Figure 2 As shown, the present invention discloses a power transfer device based on dynamic wireless vehicle-to-vehicle charging technology, comprising: ① a vehicle battery pack; ② a V2V discharge control module; ③ a PFC + inverter module; ④ a 3D transmitting coil; ⑤ a V2V charging control module; ⑥ a rectifier and transmission module; ⑦ a receiving coil; ⑧ an electromagnetic field; ⑨ a switch controller; ⑩ a circuit breaker module; and a radar data unit. The above components are connected by 0.1mm thick, 0.5m long copper enameled wire.

[0059] like Figure 3As shown, the radar data unit belongs to the autonomous driving component and is broadly divided into two modules: a radar perception module and a data planning system. The radar perception module is responsible for collecting the position data of the object to be measured, while the data planning system analyzes the collected instructions to make the next decision. A controller connected to the transmitting mechanism controls the opening and closing of the coil circuit breaker, completing energy-efficient power transfer. When the receiving coil 7 is slightly offset to the left of the transmitting coil, the switch controller 9 activates the middle coil and the left-side unit coil of the transmitting mechanism to provide energy to the offset coil; when the receiving coil 7 is offset to the right of the transmitting coil, the controller activates the middle coil and the right-side coil to provide energy; if there is no offset, only the middle coil is activated.

[0060] like Figure 4 As shown, the 3D transmitting coil 4 consists of three unit transmitting coils. The middle unit coil measures 600 / 230mm, while the two side unit coils measure 125 / 230mm. The obtuse angle between the two side unit coils and the middle unit coil is 143.13°. The transmitting coil is folded in three directions based on the curved surface structure of the vehicle's front, and the three coils appear as an inverted C-shape when viewed from above. The receiving coil 7 measures 800 / 230mm. In the X-axis direction, it is longer than the middle coil of the transmitting mechanism and also longer than the sum of the lengths of the one-side unit transmitting coil and the middle coil in the X-axis direction. The purpose of this larger receiving coil 7 is to receive a wider range of electromagnetic energy.

[0061] like Figure 5 As shown, electromagnetic shielding is required to meet the safety limits for electromagnetic radiation protection of the human body as stipulated in national standards. Installing a rectangular ferrite core behind the coil can concentrate electromagnetic transmission, achieving the safe leakage magnetic field limit for the human body.

[0062] like Figure 6 As shown, taking the vehicle front-end transmitting mechanism as an example, the license plate is made of ABS plastic to reduce the impact of ferromagnetic materials on energy transmission efficiency. ABS plastic also has good resistance, is hard, and easy to color. The license plate is slightly recessed into the vehicle body to make the vehicle's shape more streamlined. The transmitting mechanism is located in front of the coil and is equipped with a PET material shell with a nano-coating. PET material has stable chemical properties, is not easily corroded by acids or alkalis, and the nano-coating has good anti-fouling capabilities. The 3D transmitting structure conforms to the streamlined shape of the vehicle's front end, fits the vehicle perfectly, and achieves efficient magnetic field transmission.

[0063] like Figure 7The diagram shows a simulation of the magnetic field of the transmitting mechanism of this invention. As can be seen from the figure, the three-dimensional structure of this invention generates a wider and more uniform magnetic field than traditional planar coils, improving the system's anti-offset performance and transmission efficiency. Furthermore, due to the special structure of the transmitting coil, it has higher anti-offset performance than ordinary 2D coils. Ordinary 2D square coils generate a symmetrical gourd-shaped magnetic field, which weakens towards the outside. In contrast, the 3D transmitting coil 4 of this invention generates a wider and more uniform magnetic field. For relative vehicle displacement caused by uncontrollable factors, such as when the vehicle being charged is to the left or right of the vehicle being discharged, power is transmitted through the unit coils on both sides of the transmitting mechanism. Within a certain range, this will not lead to a significant decrease in vehicle charging efficiency, making vehicle charging during dynamic driving more efficient and safer.

[0064] This invention relates to an energy transfer device based on dynamic wireless vehicle-to-vehicle charging technology: New energy vehicles can still overcome environmental and location limitations to achieve efficient and environmentally friendly energy transfer during dynamic driving. Each vehicle is equipped with a coil at both the front and rear for discharging and charging. Taking a discharging vehicle as an example, when the vehicle is providing power, the V2V discharging control module 2 is activated and the discharging circuit is connected. The vehicle's battery pack 1 provides energy to the outside. The electrical energy is converted from DC to AC through a PFC+inverter module to stabilize the power factor, and then transmitted outwards through a 3D transmitting coil 4. The radar sensing module scans the position of the receiving coil 7 of the preceding vehicle and uploads the data to the data planning system. The planning system makes a judgment and sends a command to the switch controller 9. Based on the position of the receiving coil 7 of the preceding vehicle, the circuit breakers of each transmitting coil are controlled to open and close, selecting the optimal coil for energy transfer to charge the preceding vehicle.

[0065] Furthermore, this technology is based on autonomous driving technology. When the vehicle is traveling on the road, the discharging vehicle closely follows the rear of the vehicle to be charged, aligning their coils as much as possible to ensure efficient energy transfer. If the vehicle has autonomous driving capabilities, it can rely on its own positioning and tracking to ensure that the two vehicles remain relatively stationary during dynamic movement. Automatic alignment of the vehicle coils is based on autonomous driving technology. The autonomous vehicle integrates camera and LiDAR technology to deduce the position and size of the cooperating vehicle's coil through geometric transformations and performs positioning. Based on the planned position of the cooperating vehicle's coil and the perception of the current environment, the next action plan is made, requiring algorithmic analysis. The controller generates a control trajectory based on measurement feedback and error comparison, bringing the vehicle closer to the cooperating vehicle so that both coils are within a reasonable charging range to complete the charging task. Moreover, this invention fills the gap caused by vehicle body error deviations due to uncontrollable factors such as road conditions and weather, which can lead to charging failures or efficiency reductions.

[0066] Those skilled in the art will recognize that the units and method steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.

[0067] In the several embodiments provided in this application, it should be understood that the disclosed methods and systems can be implemented in other ways. For example, the division of units described above is merely a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. The aforementioned units may or may not be physically separated. The components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of the embodiments of the present invention according to actual needs.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

[0069] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A power transfer device based on dynamic wireless vehicle-to-vehicle charging technology, characterized in that: Includes a transmitting unit, a receiving unit, and a radar data unit; The transmitting unit includes a transmitting coil, and the receiving unit includes a receiving coil (7); The radar data unit includes a radar sensing module and a data planning module, which are used to determine the position of the receiving coil (7) on the vehicle to be charged. The data planning module is used to control the coil to work based on the information collected by the radar sensing module. The transmitting unit includes a 3D transmitting coil (4), which outputs electrical energy to the receiving unit through an electromagnetic field (8); Multiple transmitting coils form a 3D transmitting coil (4), and the radar data unit controls the opening and closing of each transmitting coil through a switch controller (9); The 3D transmitting coil (4) consists of three unit transmitting coils. The size of the middle unit coil is 600 / 230mm, and the size of the two side unit coils is 125 / 230mm. The obtuse angle between the two side unit coils and the middle unit coil is 143.13°. The transmitting coil is based on the curved surface structure of the car head and is folded in three sides. The three coils appear as an inverted C-shape when viewed from above. The energy transfer method includes the following steps: S1. The sensing system in the charging vehicle radar data system scans the position of the receiving coil of the vehicle in front and obtains the position data of the receiving coil. S2. The perception system uploads the position data of the coil of the preceding vehicle to the planning system. The planning system controls the opening and closing of each transmitting coil through the switch controller. At this time, the vehicle based on the autonomous driving function reaches the designated position to prepare for V2V charging behavior. If the vehicle's position shifts relative to the vehicle's position due to force majeure during operation, the vehicle's radar data system will recalculate the real-time position of the front vehicle's coil and control the switching on and off of different transmitting coils to complete the charging process. S3. The V2V discharge control module inside the charging vehicle is activated, and the vehicle body discharge circuit is connected. S4. The electrical energy generated by the battery pack inside the charging vehicle is connected to the PFC+ inverter module through wires. At this time, while stabilizing the power factor, the current is converted from DC to AC at the required frequency. S5. AC power is connected to the 3D transmitting coil for electromagnetic coupling to release energy to the outside. S6. The V2V charging control module inside the vehicle to be charged is activated, and the vehicle body charging circuit is connected. S7. The receiving coil of the vehicle to be charged converts the magnetic field energy in the space into alternating current. The electrical energy is connected to the rectifier + transmission module through the wire. At this time, the current is converted from alternating current to direct current of the required frequency. S8. Direct current is connected to the battery pack inside the vehicle to be charged via a wire to complete V2V charging.

2. The energy transfer device based on dynamic wireless vehicle-to-vehicle charging technology according to claim 1, characterized in that: The transmitting coil is installed on the power supply vehicle, and the receiving coil (7) is installed on the vehicle to be charged; Or the same vehicle may have both a transmitting coil and a receiving coil installed (7).

3. The energy transfer device based on dynamic wireless vehicle-to-vehicle charging technology according to claim 1, characterized in that: The vehicle is equipped with an electrical control unit, which includes a transmitting part and a receiving part; The electrical control unit of the transmitter includes a vehicle battery pack (1), a V2V discharge control module (2), and a PFC+ inverter module connected in sequence, and is connected to the transmitter unit through the PFC+ inverter module; The electrical control unit of the receiving section includes a vehicle battery pack (1), a V2V charging control module (5), a rectifier, and a transmission module (6) connected in sequence, and the receiving unit is connected through the rectifier and the transmission module (6).

4. The energy transfer device based on dynamic wireless vehicle-to-vehicle charging technology according to claim 1, characterized in that: The radar data unit includes a switch controller (9) and a circuit breaker module that are interconnected. The radar data unit is connected to the PFC+ inverter module through the switch controller (9) and is connected to the transmitting unit through the radar data unit.

5. An electronic device, comprising a processor and a memory communicatively connected to the processor and used for storing processor-executable instructions, characterized in that: The processor is used to execute the energy transfer method of the energy transfer device described in claim 1.

6. A server, characterized in that: It includes at least one processor and a memory communicatively connected to the processor, the memory storing instructions executable by the at least one processor, the instructions being executed by the processor to cause the at least one processor to perform the energy transfer method of the energy transfer device as described in claim 1.

7. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by the processor, it implements the energy transfer method of the energy transfer device as described in claim 1.

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