Wireless emergency energy interaction system, receiving method and sending method of electric vehicle

Abstract

The invention provides a wireless emergency energy interaction system, a receiving method and a sending method of an electric vehicle, and relates to the technical field of electric vehicles. The wireless emergency energy interaction system comprises an energy wireless transmission module, an energy management module and a communication module, the energy wireless transmission module is connected with the energy management module, and the energy management module is connected with a power battery of the electric vehicle; the communication module is connected with the energy management module, and the communication module is used for sending a charging request signal to a to-be-matched electric vehicle or receiving the charging request signal of the to-be-matched electric vehicle and establishing communication connection with the to-be-matched electric vehicle according to the charging request signal; the energy wireless transmission module is used for establishing wireless energy transmission connection with a to-be-matched electric vehicle and receiving energy transmitted by the to-be-matched electric vehicle or transmitting energy of the power battery to the to-be-matched electric vehicle. The wireless emergency energy interaction system can achieve the technical effects of improving the charging flexibility and improving the user experience.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric vehicles, in particular to a wireless emergency energy interaction system of an electric vehicle, a receiving method and a sending method. BACKGROUND

[0002] An electric vehicle refers to a vehicle that uses a vehicle-mounted power source as power, is driven by an electric motor, and meets the requirements of road traffic and safety regulations. Since the environmental impact is relatively small compared to traditional cars, the prospects of electric vehicles are widely optimistic. At present, with the popularization of electric vehicles, the range anxiety has become an important factor affecting the user experience. In actual use, there may be a situation that a new energy vehicle is short of power and there is no charging pile nearby, or the number of charging piles is insufficient during peak hours, or even the charging pile is damaged due to natural disasters. The traditional charging method relies on fixed charging pile facilities, which has problems such as limited charging location and long queuing time, resulting in limited charging flexibility and reducing customer experience. SUMMARY

[0003] The purpose of the present application is to provide a wireless emergency energy interaction system of an electric vehicle, a receiving method and a sending method, which can achieve the technical effects of improving charging flexibility and improving user experience.

[0004] In a first aspect, the present application provides a wireless emergency energy interaction system of an electric vehicle, comprising an energy wireless transmission module, an energy management module and a communication module; The energy wireless transmission module is connected with the energy management module, and the energy management module is connected with the power battery of the electric vehicle; The communication module is connected with the energy management module, and the communication module is used for sending a charging request signal to a to-be-matched electric vehicle or accepting a charging request signal of the to-be-matched electric vehicle, and establishing a communication connection with the to-be-matched electric vehicle according to the charging request signal; the energy wireless transmission module is used for establishing a wireless energy transmission connection with the to-be-matched electric vehicle, and receiving energy transmitted by the to-be-matched electric vehicle or transmitting energy of the power battery to the to-be-matched electric vehicle.

[0005] In the above implementation process, the energy wireless transmission module in the wireless emergency energy interaction system can establish a wireless transmission connection with the energy wireless transmission module of other electric vehicles, and realize wireless energy transmission between two electric vehicles, so as to wirelessly transmit the power battery energy of one electric vehicle to the power battery of another electric vehicle, thereby realizing wireless emergency energy interaction between new energy vehicles, providing temporary charging for electric vehicles with insufficient power in an emergency, improving the use convenience and emergency capability of new energy vehicles, and achieving the technical effects of improving charging flexibility and improving user experience.

[0006] Further, the energy wireless transmission module comprises an energy receiving coil and an energy transmitting coil, and the energy receiving coil and the energy transmitting coil are connected with the power battery and the energy management module respectively.

[0007] In the above implementation process, the energy receiving coil and the energy transmitting coil in the energy wireless transmission module can share a set of public coils. When the energy wireless transmission module serves as an energy transmitting end, the public coils serve as the energy transmitting coil under the control of the energy management module, and the energy of the power battery is transmitted to the power battery of another electric vehicle. When the energy wireless transmission module serves as an energy receiving end, the public coils serve as the energy receiving coil under the control of the energy management module, and the energy transmitted by another electric vehicle is received and transmitted to the power battery.

[0008] Further, the wireless emergency energy interaction system further comprises a positioning module, and the positioning module is connected with the communication module.

[0009] In the above implementation process, the vehicle positioning can be realized through the positioning module, so as to facilitate the adjustment of the relative positions of the two electric vehicles and the establishment of the wireless energy transmission connection between the two electric vehicles.

[0010] Further, the wireless emergency energy interaction system further comprises a charging module, and the energy wireless transmission module is connected with the energy management module or the power battery through the charging module.

[0011] In the above implementation process, the energy transmission between the two electric vehicles can be metered through the charging module to obtain energy transmission data, so that the charging data can be obtained through the energy transmission data for charging, and the energy settlement between the two electric vehicles can be facilitated.

[0012] Further, the wireless emergency energy interaction system further comprises a charging gun, and the charging gun is connected with the energy management module and the power battery respectively.

[0013] In the above implementation process, the charging gun is connected with the power battery, that is, the charging gun can be connected with an external power supply to charge the power battery. In addition, the charging gun is connected with the energy management module, so that part of the energy of the charging gun is shunted through the relay power supply mode, and then transmitted directly to the to-be-matched electric vehicle through the energy wireless transmission module.

[0014] In a second aspect, the present application provides a wireless emergency energy receiving method of an electric vehicle, applied to the wireless emergency energy interaction system of the electric vehicle in any one of the first aspect, and the wireless emergency energy receiving method comprises: sending a charging request signal to the to-be-matched electric vehicle; acquire an acceptance request information sent by the electric vehicle to be matched, and establish a communication connection with the electric vehicle to be matched according to the acceptance request information; establish a wireless energy transmission connection with the electric vehicle to be matched through the energy wireless transmission module, and receive energy transmitted by the electric vehicle to be matched.

[0015] In the implementation process, if the electric vehicle has a charging demand, the electric vehicle can send a charging request signal to other electric vehicles around through the communication module; if the electric vehicle to be matched agrees to the charging request, the electric vehicle to be matched sends an acceptance request information to the electric vehicle; thus, after the electric vehicle and the electric vehicle to be matched establish a communication connection, the electric vehicle establishes a wireless energy transmission connection with the electric vehicle to be matched through the energy wireless transmission module, receives energy transmitted by the electric vehicle to be matched, realizes wireless energy transmission of the electric vehicle, and improves charging flexibility and user experience.

[0016] Further, after the step of receiving the energy transmitted by the electric vehicle to be matched, the wireless emergency energy receiving method further includes: confirming that the battery capacity information of the power battery is greater than or equal to a charging capacity threshold, and disconnecting the wireless energy transmission connection and the communication connection with the electric vehicle to be matched.

[0017] In the implementation process, if the battery capacity information of the power battery is greater than or equal to the charging capacity threshold, it indicates that the emergency charging demand has been completed, at which time the wireless energy transmission connection and the communication connection with the electric vehicle to be matched can be disconnected, thereby avoiding excessive consumption of the power battery capacity of the electric vehicle to be matched.

[0018] Further, the step of establishing a wireless energy transmission connection with the electric vehicle to be matched through the energy wireless transmission module includes: acquiring remaining capacity information of the electric vehicle to be matched; determining a charging parameter according to the battery capacity information of the power battery and the remaining capacity information of the electric vehicle to be matched; determining a wireless energy transmission parameter according to the charging parameter, and controlling the energy wireless transmission module to establish a wireless energy transmission connection with the electric vehicle to be matched based on the wireless energy transmission parameter.

[0019] In the implementation process, the charging parameter is determined according to the battery capacity information of the power battery and the remaining capacity information of the electric vehicle to be matched, and the wireless energy transmission parameter is determined according to the charging parameter, so as to ensure that the wireless energy transmission parameter is matched and set when the electric vehicle and the electric vehicle to be matched establish a wireless energy transmission connection, and to ensure normal operation of the wireless energy transmission.

[0020] Further, before the step of establishing a wireless energy transmission connection with the to-be-matched electric vehicle by the energy wireless transmission module, the wireless emergency energy receiving method further comprises: obtaining first positioning information of the electric vehicle and second positioning information of the to-be-matched electric vehicle; generating position adjustment information according to the first positioning information and the second positioning information; controlling the electric vehicle to perform position adjustment according to the position adjustment information.

[0021] In the above implementation process, the position adjustment information is generated by the first positioning information of the electric vehicle and the second positioning information of the to-be-matched electric vehicle, so that the electric vehicle can be controlled to perform position adjustment according to the position adjustment information, and the relative positions of the electric vehicle and the to-be-matched electric vehicle are kept constant to keep the wireless energy transmission connection stable.

[0022] In a third aspect, the present application provides a wireless emergency energy sending method of an electric vehicle, applied to the wireless emergency energy interaction system of the electric vehicle of any one of the first aspect, and the wireless emergency energy sending method comprises: obtaining a charging request signal sent by a to-be-matched electric vehicle, the charging request signal comprising charging demand power information; obtaining available power information according to battery power information of a power battery; confirming that the available power information is greater than the charging demand power information, and sending an acceptance request information to the to-be-matched electric vehicle; establishing a communication connection with the to-be-matched electric vehicle; establishing a wireless energy transmission connection with the to-be-matched electric vehicle by an energy wireless transmission module, and sending energy to the to-be-matched electric vehicle by the energy wireless transmission module.

[0023] In the above implementation process, after obtaining the charging request signal sent by the to-be-matched electric vehicle, if the available power information is greater than the charging demand power information, the to-be-matched electric vehicle can be wirelessly charged; the charging request is agreed, and an acceptance request information is sent to the to-be-matched electric vehicle, a communication connection and a wireless energy transmission connection are established with the to-be-matched electric vehicle, and energy is sent to the to-be-matched electric vehicle by the energy wireless transmission module, so as to realize wireless energy transmission of the electric vehicle, improve charging flexibility, and improve user experience.

[0024] Further, after the step of sending energy to the to-be-matched electric vehicle by the energy wireless transmission module, the wireless emergency energy sending method further comprises: confirming that the battery power information is less than or equal to a preset power threshold, and disconnecting the wireless energy transmission connection and the communication connection with the to-be-matched electric vehicle.

[0025] In the implementation process, if the battery power information is less than or equal to the preset power threshold, it indicates that the emergency charging demand has been completed, at which time the wireless energy transmission connection and the communication connection with the to-be-matched electric vehicle can be disconnected, thereby avoiding excessive consumption of the power battery power of the electric vehicle.

[0026] Further, the step of transmitting energy to the to-be-matched electric vehicle by the energy wireless transmission module comprises: determining a charging parameter according to the battery power information of the power battery and the residual power information of the to-be-matched electric vehicle; determining a wireless energy transmission parameter of the energy wireless transmission module according to the charging parameter, and controlling the energy wireless transmission module to transmit energy to the to-be-matched electric vehicle by the wireless energy transmission parameter.

[0027] In the implementation process, the charging parameter is determined according to the battery power information of the power battery and the residual power information of the to-be-matched electric vehicle, and the wireless energy transmission parameter is determined according to the charging parameter, so as to ensure that the wireless energy transmission parameter is matched and set when the electric vehicle and the to-be-matched electric vehicle establish the wireless energy transmission connection, and to ensure the normal operation of the wireless energy transmission.

[0028] Other features and advantages of the present application will be described in the following description, or can be known or determined without doubt from the description, or can be known or determined without doubt from the description.

[0029] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the following preferred embodiments are described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments of the present application. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0031] Figure 1 A structural schematic diagram of a wireless emergency energy interaction system of an electric vehicle provided by the embodiments of the present application; Figure 2 A flowchart of a wireless emergency energy receiving method of an electric vehicle provided by the embodiments of the present application; Figure 3 Another flowchart of a wireless emergency energy receiving method of an electric vehicle provided by the embodiments of the present application; Figure 4 A flowchart of a wireless emergency energy transmission method of an electric vehicle provided by an embodiment of the present application is shown in the figure; Figure 5 A flowchart of another wireless emergency energy transmission method of an electric vehicle provided by an embodiment of the present application is shown in the figure; Figure 6 A schematic diagram of a normal power supply mode provided by an embodiment of the present application is shown in the figure; Figure 7 A schematic diagram of a relay power supply mode provided by an embodiment of the present application is shown in the figure.

[0032] Reference signs: energy wireless transmission module 100; energy management module 200; communication module 300; power battery 400; positioning module 500; charging module 600; charging gun 700. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0034] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0035] In addition, in addition to being used to indicate the orientation or positional relationship, the above-mentioned partial terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. Those skilled in the art can understand the specific meaning of these terms in the present application according to the specific situation.

[0036] In addition, the terms "mounting", "arrangement", "provided with", "connected", "linked" should be understood broadly. For example, it can be fixed connection, detachable connection, or integral structure; it can be mechanical connection, or point connection; it can be direct connection, or indirect connection through intermediate medium, or internal connection between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by the person skilled in the art according to the specific circumstances.

[0037] In addition, the terms "first", "second" and the like are mainly used to distinguish different devices, elements or components (the specific type and structure may be the same or different), and are not intended to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise stated, the meaning of "multiple" is two or more.

[0038] Generally, electric vehicles refer to vehicles powered by on-board power sources, driven by electric motors, and meeting the requirements of road traffic and safety regulations. Since the environmental impact is relatively small compared to traditional cars, the prospects of electric vehicles are widely optimistic. At present, with the popularity of electric vehicles, the range anxiety has become an important factor affecting user experience. In actual use, there may be a situation that a new energy vehicle is short of power and there is no charging pile nearby, or the number of charging piles is short during peak hours, or even the charging pile is damaged due to natural disasters. The traditional charging method relies on fixed charging pile facilities, which has the problems of limited charging location and long queuing time, resulting in limited charging flexibility and reducing customer experience.

[0039] In order to solve the above-mentioned technical problems, the embodiments of the present application provide a wireless emergency energy interaction system of an electric vehicle, a receiving method and a sending method. By setting a wireless emergency energy interaction system on an electric vehicle, the wireless emergency energy interaction system can perform wireless energy transmission with other electric vehicles, thereby realizing wireless emergency energy interaction between new energy vehicles, providing temporary charging for vehicles with insufficient power in emergency situations, improving the use convenience and emergency capability of new energy vehicles, and achieving the technical effects of improving charging flexibility and improving user experience.

[0040] Please refer to Figure 1 , Figure 1 A structural schematic diagram of a wireless emergency energy interaction system of an electric vehicle provided by the embodiments of the present application is shown in the figure. The wireless emergency energy interaction system of the electric vehicle includes an energy wireless transmission module 100, an energy management module 200 and a communication module 300. The energy wireless transmission module 100 is connected with the energy management module 200, and the energy management module 200 is connected with the power battery 400 of the electric vehicle. The communication module 300 is connected with the energy management module 200, the communication module 300 is used for sending a charging request signal to a to-be-matched electric vehicle or accepting a charging request signal of the to-be-matched electric vehicle, and a communication connection is established with the to-be-matched electric vehicle according to the charging request signal; the energy wireless transmission module 100 is used for establishing a wireless energy transmission connection with the to-be-matched electric vehicle, and receiving energy transmitted by the to-be-matched electric vehicle or transmitting energy of the power battery to the to-be-matched electric vehicle.

[0041] Exemplarily, the energy wireless transmission module 100 can realize wireless power transmission through electromagnetic induction or resonance; The energy wireless transmission module 100 can realize wireless charging based on a wireless charging technology; the wireless charging technology can be divided into two modes of small-power wireless charging and large-power wireless charging; The small-power wireless charging is commonly electromagnetic induction type; the large-power wireless charging is commonly resonance type, energy is transmitted from a power supply device (charger) to a device for use, the device uses the received energy to charge a battery and simultaneously supply power for its own operation.

[0042] Exemplarily, the energy management module 200 can obtain power battery parameters of the electric vehicle in real time, and manage power battery parameters of the electric vehicle and power distribution of the charging gun based on the power battery parameters; For example, the circuit of the energy management module 200 is in communication with the power battery, the electric vehicle can directly transmit the power of the power battery to the to-be-matched electric vehicle through the energy wireless transmission module 100 in a normal power supply mode; the energy management module 200 can also actively disconnect the wireless energy transmission with the to-be-matched electric vehicle; Optionally, the energy management module 200 can bypass the power battery through a power supply bypass, shunt part of the energy of the charging gun through a relay power supply mode, and then directly transmit the energy to the to-be-matched electric vehicle through the energy wireless transmission module 100.

[0043] Exemplarily, the two electric vehicles matched in the embodiment of the application are both equipped with the wireless emergency energy interaction system, for the convenience of description, one of the electric vehicles is referred to as a to-be-matched electric vehicle; the electric vehicle and the to-be-matched electric vehicle first establish a communication connection through respective communication modules 300, after the communication connection is established, the electric vehicle and the to-be-matched electric vehicle adjust corresponding positions, and the energy wireless transmission module 100 is controlled by the respective energy management modules 200 to establish a wireless energy transmission connection; thus, after the wireless energy transmission connection is established, the power can be transmitted between the electric vehicle and the to-be-matched electric vehicle as needed, such as receiving energy transmitted by the to-be-matched electric vehicle or transmitting energy of the power battery to the to-be-matched electric vehicle.

[0044] Exemplarily, the energy management module 200 can be a microcontroller or a microprocessor, such as various microcontroller units (MCU), microprocessor units (MPU), etc., responsible for running energy management algorithms, monitoring sensor data, making control decisions (such as charging / discharging control, load switching, power distribution), etc.

[0045] Exemplarily, the hardware components of the communication module 300 can be Wi-Fi, Bluetooth, cellular 4G / 5G, LoRa, Zigbee, Ethernet, serial port, etc., and the appropriate application type is selected according to the specific performance requirements.

[0046] The wireless emergency energy interaction system of the electric vehicle provided by the embodiment of the application can establish a wireless transmission connection with the energy wireless transmission module 100 equipped on other electric vehicles through the energy wireless transmission module 100 in the wireless emergency energy interaction system, and realize wireless energy transmission between the two electric vehicles, wirelessly transmit the power battery energy of one electric vehicle to the power battery of another electric vehicle, so as to realize wireless emergency energy interaction between new energy vehicles, provide temporary charging for electric vehicles with insufficient power in an emergency, improve the use convenience and emergency capability of new energy vehicles, and achieve the technical effects of improving charging flexibility and improving user experience.

[0047] In some embodiments, the energy wireless transmission module 100 includes an energy receiving coil and an energy transmitting coil, and the energy receiving coil and the energy transmitting coil are respectively connected with the power battery 400 and the energy management module 200.

[0048] Exemplarily, the energy receiving coil and the energy transmitting coil in the energy wireless transmission module 100 can share a set of public coils. When the energy wireless transmission module 100 serves as an energy transmitting end, the public coils serve as energy transmitting coils under the control of the energy management module 200, and the energy of the power battery 400 is transmitted to the power battery of other electric vehicles. When the energy wireless transmission module 100 serves as an energy receiving end, the public coils serve as energy receiving coils under the control of the energy management module 200, and the energy transmitted by other electric vehicles is received and transmitted to the power battery 400.

[0049] In some embodiments, the energy transmitting coil of the energy wireless transmission module 100 provided by the embodiment of the application is used to transmit a wireless charging signal of a specific frequency to the energy receiving coil on other electric vehicles; wherein the wireless transmission mode of the energy wireless transmission module 100 can be magnetic resonance, adopt A4WP standard, and the resonance frequency is 6.78MHz, and the wireless transmission power is 50W. Optionally, the wireless transmission mode of the energy wireless transmission module 100 can also adopt the wireless charging mode of the WPC Qi standard, and the working frequency is 100KHz-200KHz, and the wireless transmission power is 25W. The wireless transmission mode of the energy wireless transmission module 100 can also adopt other wireless charging standards, such as the Power Matters Alliance standard, the iNPOFi standard, etc., which are only used as examples and are not limited.

[0050] In some implementation scenarios, the normal driving power of the electric vehicle is usually several kilowatts; if the wireless transmission power of the wireless emergency energy interaction system provided by the embodiment of the application is low, the wireless energy transmission between two electric vehicles during driving cannot be supported. Exemplarily, when the energy wireless transmission module 100 of the electric vehicle needs to perform wireless energy transmission on the to-be-matched electric vehicle, it needs to be performed in the state that the electric vehicle and the to-be-matched electric vehicle are both kept stationary, so as to ensure that the wireless transmission power is greater than the real-time whole vehicle power of the power receiving vehicle, thereby ensuring that the power battery of the power receiving vehicle can obtain emergency supplement.

[0051] In some embodiments, the wireless emergency energy interaction system further comprises a positioning module 500 connected with the communication module 300.

[0052] Exemplarily, the vehicle positioning can be realized through the positioning module 500, so as to facilitate the adjustment of the relative positions of the two electric vehicles and the establishment of the wireless energy transmission connection between the two electric vehicles.

[0053] Optionally, the positioning module 500 can comprise a GNSS (Global Navigation Satellite System) chip, which can calculate the position, speed, and time information by receiving and demodulating satellite signals (such as GPS, Beidou, GLONASS, etc.); thus, through the GNSS chip, the position information of the current electric vehicle can be determined.

[0054] Optionally, the positioning module 500 can comprise an image acquisition unit and a ranging unit, which realize the mutual positioning between the two electric vehicles by acquiring the image information and distance information of the to-be-matched electric vehicle.

[0055] In some embodiments, the wireless emergency energy interaction system further comprises a charging module 600, and the energy wireless transmission module 100 is connected with the energy management module 200 or the power battery 400 through the charging module 600.

[0056] Exemplarily, the charging module 600 can measure the electric energy transmission between the two electric vehicles to obtain electric energy transmission data; then, the electric energy transmission data is used for charging to obtain charging data, thereby facilitating the electric energy settlement between the two electric vehicles.

[0057] Exemplarily, the charging module 600 includes an electric energy measurement chip and a signal acquisition device, wherein the electric energy measurement chip includes an application-specific integrated circuit (such as ADE7755, ATT7022, ADE9153B, 71M6543, etc.), which is responsible for high-precision sampling of voltage and current signals, calculation of active / reactive power, power factor and other parameters. The signal acquisition device in the charging module 600 can be a current transformer or a shunt resistor, which is used to acquire a current signal; for example, a manganese-copper shunt can be used for direct measurement, and a current transformer can be used for isolation measurement.

[0058] The signal acquisition device in the charging module 600 can also be a voltage transformer or a resistance voltage divider network, which is used to acquire a voltage signal (such as a 1MΩ and 1kΩ resistance series voltage divider).

[0059] In some embodiments, the wireless emergency energy interaction system further includes a charging gun 700, which is connected with the energy management module 200 and the power battery 400, respectively.

[0060] Exemplarily, the charging gun 700 is connected with the power battery 400, that is, the charging gun 700 can be connected with an external power supply to charge the power battery 400; in addition, the charging gun 700 is connected with the energy management module 200, so as to bypass the power battery 400 through a power supply bypass, and to shunt part of the energy of the charging gun 700 through a relay power supply mode, and then to directly transmit the energy to the to-be-matched electric vehicle through the energy wireless transmission module 100.

[0061] Please refer to Figure 2 , Figure 2 A flowchart of a wireless emergency energy receiving method of an electric vehicle is provided for the embodiments of the present application, and the wireless emergency energy receiving method of the electric vehicle is applied to the wireless emergency energy interaction system of the electric vehicle shown in Figure 1 The wireless emergency energy receiving method includes the following steps: S110: sending a charging request signal to a to-be-matched electric vehicle; S120: obtaining acceptance request information sent by the to-be-matched electric vehicle, and establishing a communication connection with the to-be-matched electric vehicle according to the acceptance request information; S130: establishing a wireless energy transmission connection with the to-be-matched electric vehicle through the energy wireless transmission module, and receiving energy transmitted by the to-be-matched electric vehicle.

[0062] Exemplarily, if the electric vehicle has a charging demand, a charging request signal can be sent to other electric vehicles around through the communication module; if the to-be-matched electric vehicle agrees to the charging request, an acceptance request information is sent to the electric vehicle; thus, after the electric vehicle and the to-be-matched electric vehicle establish a communication connection, a wireless energy transmission connection is established between the electric vehicle and the to-be-matched electric vehicle through the energy wireless transmission module, energy transmitted by the to-be-matched electric vehicle is received, wireless energy transmission of the electric vehicle is realized, and charging flexibility and user experience are improved.

[0063] Please refer to Figure 3 , Figure 3 Another flowchart of a wireless emergency energy receiving method of an electric vehicle provided by the embodiments of the present application is shown.

[0064] In some embodiments, after the step of S130: receiving energy transmitted by the to-be-matched electric vehicle, the wireless emergency energy receiving method further comprises: S140: confirming that the battery capacity information of the power battery is greater than or equal to the charging capacity threshold, and disconnecting the wireless energy transmission connection and the communication connection with the to-be-matched electric vehicle.

[0065] Exemplarily, if the battery capacity information of the power battery is greater than or equal to the charging capacity threshold, it indicates that the emergency charging demand has been completed, at which time the wireless energy transmission connection and the communication connection with the to-be-matched electric vehicle can be disconnected, thereby avoiding excessive consumption of the power battery capacity of the to-be-matched electric vehicle.

[0066] In some embodiments, the step of S130: establishing a wireless energy transmission connection with the to-be-matched electric vehicle through the energy wireless transmission module comprises: S131: obtaining the residual capacity information of the to-be-matched electric vehicle; S132: determining charging parameters according to the battery capacity information of the power battery and the residual capacity information of the to-be-matched electric vehicle; S133: determining wireless energy transmission parameters according to the charging parameters, and controlling the energy wireless transmission module to establish a wireless energy transmission connection with the to-be-matched electric vehicle based on the wireless energy transmission parameters.

[0067] Exemplarily, the charging parameters are determined according to the battery capacity information of the power battery and the residual capacity information of the to-be-matched electric vehicle, and the wireless energy transmission parameters are determined according to the charging parameters, so as to ensure that the wireless energy transmission parameters are matched and set when the electric vehicle and the to-be-matched electric vehicle establish a wireless energy transmission connection, and the normal operation of the wireless energy transmission is ensured.

[0068] In some embodiments, before the step of S120: establishing a wireless energy transmission connection with the to-be-matched electric vehicle through the energy wireless transmission module, the wireless emergency energy receiving method further comprises: S111: Obtain first positioning information of the electric vehicle and second positioning information of the to-be-matched electric vehicle; S112: Generate position adjustment information according to the first positioning information and the second positioning information; S113: Control the electric vehicle to perform position adjustment according to the position adjustment information.

[0069] Exemplarily, the position adjustment information is generated through the first positioning information of the electric vehicle and the second positioning information of the to-be-matched electric vehicle, so that the electric vehicle can be controlled to perform position adjustment according to the position adjustment information, and the relative positions of the electric vehicle and the to-be-matched electric vehicle are kept constant, so as to keep the wireless energy transmission connection stable.

[0070] Optionally, the electric vehicle and the to-be-matched electric vehicle can be controlled to perform position adjustment according to the position adjustment information, which is only an example and is not limited.

[0071] Please refer to Figure 4 , Figure 4 A flowchart of a wireless emergency energy sending method of an electric vehicle is provided for the embodiments of the present application, and the wireless emergency energy sending method of the electric vehicle is applied to the wireless emergency energy interaction system of the electric vehicle shown in Figure 1 The wireless emergency energy sending method includes the following steps: S210: Obtain a charging request signal sent by a to-be-matched electric vehicle, and the charging request signal includes charging demand power information; S220: Obtain available power information according to battery power information of a power battery; S230: Confirm that the available power information is greater than the charging demand power information, and send acceptance request information to the to-be-matched electric vehicle; S240: Establish a communication connection with the to-be-matched electric vehicle; S250: Establish a wireless energy transmission connection with the to-be-matched electric vehicle through an energy wireless transmission module, and send energy to the to-be-matched electric vehicle through the energy wireless transmission module.

[0072] Exemplarily, after obtaining the charging request signal sent by the to-be-matched electric vehicle, if the available power information is greater than the charging demand power information, the to-be-matched electric vehicle can be wirelessly charged; the charging request is agreed, and the acceptance request information is sent to the to-be-matched electric vehicle; a communication connection and a wireless energy transmission connection are established with the to-be-matched electric vehicle; energy is sent to the to-be-matched electric vehicle through the energy wireless transmission module, so as to realize wireless energy transmission of the electric vehicle, improve charging flexibility, and improve user experience.

[0073] In an example, in the step of obtaining the available power supply information according to the battery power information of the power battery, the electric vehicle calculates power demand information of the vehicle, and determines the available power supply information according to the power demand information and the battery power information of the power battery; generally, the battery power information of the power battery is equal to the sum of the power demand information and the available power supply information.

[0074] Please refer to Figure 5 , Figure 5 The flowchart of another wireless emergency energy transmission method of an electric vehicle provided by the embodiment of the application is shown.

[0075] In some embodiments, after the step S250 of transmitting energy to the to-be-matched electric vehicle by the energy wireless transmission module, the wireless emergency energy transmission method further comprises: S260: disconnecting the wireless energy transmission connection and the communication connection with the to-be-matched electric vehicle when the battery power information is less than or equal to the preset power threshold.

[0076] In an example, when the battery power information is less than or equal to the preset power threshold, it indicates that the emergency charging demand has been completed, and at this time, the wireless energy transmission connection and the communication connection with the to-be-matched electric vehicle can be disconnected, so as to avoid excessive consumption of the power battery of the electric vehicle.

[0077] In some embodiments, the step S250 of transmitting energy to the to-be-matched electric vehicle by the energy wireless transmission module comprises: S251: determining charging parameters according to the battery power information of the power battery and the residual power information of the to-be-matched electric vehicle; S252: determining wireless energy transmission parameters of the energy wireless transmission module according to the charging parameters, and controlling the energy wireless transmission module to transmit energy to the to-be-matched electric vehicle by the wireless energy transmission parameters.

[0078] In an example, the charging parameters are determined according to the battery power information of the power battery and the residual power information of the to-be-matched electric vehicle, and the wireless energy transmission parameters are determined according to the charging parameters, so as to ensure that the wireless energy transmission parameters are matched and set when the electric vehicle and the to-be-matched electric vehicle establish the wireless energy transmission connection, and the normal operation of the wireless energy transmission is ensured.

[0079] Please refer to Figure 6 and Figure 7 , Figure 6 The schematic diagram of the general power supply mode provided by the embodiment of the application is shown. Figure 7 The schematic diagram of the relay power supply mode provided by the embodiment of the application is shown.

[0080] The wireless emergency energy interaction system, the receiving method and the sending method of the electric vehicle provided by the embodiments of the present application can realize wireless charging between electric vehicles / new energy vehicles, solve the emergency charging problem of electric vehicles / new energy vehicles in the case of no charging pile or lack of charging pile, and effectively avoid problems such as limited charging location and long charging queue time; Exemplarily, the wireless emergency energy interaction system of the electric vehicle provided by the present application is a dual-mode vehicle-mounted wireless emergency energy interaction system. The energy interaction system includes an energy wireless transmission module 100, an energy management module 200, a communication module 300, a positioning module 500, a billing module 600 and the like. The energy interaction process is as shown in Figure 6 or Figure 7 ; When the powered vehicle needs to be charged, the communication module 300 sends a charging request signal to the surrounding other electric vehicles. After the power supply vehicle receives the request signal, it establishes a communication connection with the powered vehicle, and the two sides exchange vehicle information and battery state information. According to the detection results of the positioning module 500 and the alignment module, the relative positions of the power supply vehicle and the powered vehicle are adjusted to align the transmitting coil and the receiving coil. The position adjustment of the vehicle can be realized through the auxiliary driving system of the vehicle or manual operation of the driver. According to the battery state of the powered vehicle and the remaining power of the power supply vehicle, the charging parameters such as charging power and charging time are determined through the communication module; Optionally, the energy transmitting module of the power supply vehicle converts the energy of the battery into an alternating magnetic field and radiates outward through the transmitting coil. The energy receiving module of the powered vehicle senses the alternating magnetic field and converts the magnetic field energy into direct current to charge the battery of the powered vehicle. During the charging process, the communication module 300 monitors the charging state in real time and adjusts the charging parameters as needed. When the battery of the powered vehicle reaches the set charging capacity or the remaining power of the power supply vehicle is lower than the safety threshold, the communication module sends a charging end signal, the energy transmitting module stops transmitting energy, and the charging process ends.

[0081] Exemplarily, when the charging gun is not connected, as shown in Figure 6 , the circuit of the energy management module 200 is connected with the power battery, and the power supply vehicle can directly transfer the battery capacity to the powered vehicle through the energy transmitting module through the ordinary power supply mode; When the charging gun is connected, as shown in Figure 7 , the energy management module 200 can bypass the power battery 400 through the power supply bypass, and divert part of the energy of the charging gun 700 to the powered vehicle through the energy transmitting module through the relay power supply mode; Normal power supply mode: the driver 1 drives the vehicle without paying attention to the remaining power, and drives in an environment without charging equipment around; or the charging pile is damaged due to natural disasters. When the vehicle is low in power, the driver 1 starts the wireless charging function, and the communication module of the powered vehicle sends a charging request signal to the surrounding. After the nearby power supply vehicle receives the request signal, the driver 2 can confirm to start the normal power supply mode. The two vehicles establish a connection through the communication module, exchange vehicle information and battery state information, and the billing module determines the normal power supply mode billing strategy according to the output power. Relay power supply mode: the driver 1 is in an environment with a shortage of charging piles, and the driver 1 starts the wireless charging function. The communication module of the powered vehicle sends a charging request signal to the surrounding. After the vehicle connected with the charging gun receives the request, the driver 2 can confirm to start the relay power supply mode. The two vehicles establish a connection through the communication module, exchange vehicle information and battery state information, and the billing module determines the relay power supply mode billing strategy according to the charging pile charging strategy, so as to realize charging of two vehicles at the same time by one gun.

[0082] Exemplarily, the wireless emergency energy interaction system of the electric vehicle provided by the embodiment of the present application has the normal power supply mode and the relay power supply mode, and the user can select according to the actual scene. The two different power supply modes (the normal power supply mode and the relay power supply mode) coexist in the same vehicle-mounted system, and are automatically selected by the energy management module according to the connection state of the external charging gun. The energy management module includes a power supply bypass switch circuit. When no external charging gun is detected to be connected, the energy management module selects the connection circuit of the power battery, and guides the power battery power to the energy emission module. When the external charging gun is detected to be connected, the bypass circuit is turned on to form the power supply bypass, and the external input power is directly guided to the energy emission module.

[0083] In some implementation scenarios, the wireless energy interaction is used to provide temporary endurance for the vehicle with insufficient power, which is suitable for scenes such as field rescue, traffic congestion or natural disasters, and can make up for the insufficient flexibility of traditional fixed charging facilities.

[0084] It should be understood that the "in the present embodiment", "in the present embodiment" or "as an optional implementation" mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, "in the present embodiment", "in the present embodiment" or "as an optional implementation" appearing throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. Those skilled in the art should also know that the embodiments described in the specification are optional embodiments, and the actions and modules involved are not necessarily required by the present application.

[0085] In various embodiments of the present application, it should be understood that the magnitude of the sequence number of the above-mentioned processes does not mean the inevitable sequence of execution order, and the execution order of the processes should be determined according to their functions and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0086] The above merely provides a specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A wireless emergency energy interaction system for electric vehicles, characterized in that: It includes energy wireless transmission module, energy management module and communication module; The energy wireless transmission module is connected to the energy management module, and the energy management module is connected to the power battery of the electric vehicle; The communication module is connected to the energy management module, and the communication module is used to send a charging request signal to the electric vehicle to be matched, or receive a charging request signal from the electric vehicle to be matched, and establish a communication connection with the electric vehicle to be matched according to the charging request signal; the energy wireless transmission module is used to establish a wireless energy transmission connection with the electric vehicle to be matched, and receive the energy transmitted by the electric vehicle to be matched, or transmit the energy of the power battery to the electric vehicle to be matched.

2. The wireless emergency energy interaction system for electric vehicles according to claim 1, characterized in that: The energy wireless transmission module includes an energy receiving coil and an energy transmitting coil, and the energy receiving coil and the energy transmitting coil are connected to the power battery and the energy management module respectively.

3. The wireless emergency energy interaction system for electric vehicles according to claim 1 or 2, characterized in that: The wireless emergency energy interaction system further includes a positioning module, which is connected to the communication module.

4. The wireless emergency energy interaction system for electric vehicles according to claim 1 or 2, characterized in that: The wireless emergency energy interaction system further includes a billing module, and the energy wireless transmission module is connected to the energy management module or the power battery via the billing module.

5. The wireless emergency energy interaction system for electric vehicles according to claim 1, characterized in that: The wireless emergency energy interaction system further includes a charging gun, which is connected to the energy management module and the power battery respectively.

6. A wireless emergency energy receiving method for an electric vehicle, characterized in that: The wireless emergency energy interaction system for an electric vehicle according to any one of claims 1 to 5, wherein the wireless emergency energy receiving method comprises: Sending a charging request signal to the electric vehicle to be matched; Acquiring acceptance request information sent by the electric vehicle to be matched, and establishing a communication connection with the electric vehicle to be matched according to the acceptance request information; A wireless energy transmission connection is established with the electric vehicle to be matched through the energy wireless transmission module to receive energy transmitted by the electric vehicle to be matched.

7. The wireless emergency energy receiving method for an electric vehicle according to claim 6, characterized in that: After the step of receiving the energy transmitted by the electric vehicle to be matched, the wireless emergency energy receiving method further includes: Confirm that the battery power information of the power battery is greater than or equal to the charging power threshold, and disconnect the wireless energy transmission connection and communication connection with the electric vehicle to be matched.

8. The wireless emergency energy receiving method for an electric vehicle according to claim 6 or 7, characterized in that: The step of establishing a wireless energy transmission connection with the electric vehicle to be matched through the wireless energy transmission module includes: Obtaining the remaining power information of the electric vehicle to be matched; Determining charging parameters according to the battery power information of the power battery and the remaining power information of the electric vehicle to be matched; The wireless energy transmission parameters are determined according to the charging parameters, and the energy wireless transmission module is controlled based on the wireless energy transmission parameters to establish a wireless energy transmission connection with the electric vehicle to be matched.

9. The wireless emergency energy receiving method for an electric vehicle according to claim 6, characterized in that: Before the step of establishing a wireless energy transmission connection with the electric vehicle to be matched through the energy wireless transmission module, the wireless emergency energy receiving method further includes: Acquire first positioning information of the electric vehicle and second positioning information of the electric vehicle to be matched; generating position adjustment information according to the first positioning information and the second positioning information; The electric vehicle is controlled to adjust its position according to the position adjustment information.

10. A wireless emergency energy transmission method for an electric vehicle, characterized in that: The wireless emergency energy interaction system for an electric vehicle according to any one of claims 1 to 5, wherein the wireless emergency energy transmission method comprises: Obtaining a charging request signal sent by the electric vehicle to be matched, wherein the charging request signal includes charging required power information; Obtaining available power information based on battery power information of the power battery; Confirming that the available power information is greater than the charging required power information, and sending an acceptance request message to the electric vehicle to be matched; Establishing a communication connection with the electric vehicle to be matched; A wireless energy transmission connection is established with the electric vehicle to be matched through the energy wireless transmission module, and energy is sent to the electric vehicle to be matched through the energy wireless transmission module.

11. The wireless emergency energy transmission method for an electric vehicle according to claim 10, characterized in that: After the step of sending energy to the electric vehicle to be matched through the energy wireless transmission module, the wireless emergency energy sending method further includes: Confirm that the battery power information is less than or equal to a preset power threshold, and disconnect the wireless energy transmission connection and communication connection with the electric vehicle to be matched.

12. The wireless emergency energy transmission method for an electric vehicle according to claim 10, characterized in that: The step of sending energy to the electric vehicle to be matched through the energy wireless transmission module includes: Determining charging parameters according to the battery power information of the power battery and the remaining power information of the electric vehicle to be matched; The wireless energy transmission parameters of the energy wireless transmission module are determined according to the charging parameters, and the energy wireless transmission module is controlled to send energy to the electric vehicle to be matched through the wireless energy transmission parameters.

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