Vehicle-to-vehicle charging control method and device, electronic equipment and storage medium

Abstract

The invention relates to a vehicle-to-vehicle charging control method and device, electronic equipment, a computer readable storage medium and a computer program product, and the vehicle-to-vehicle charging control method in some embodiments comprises the steps: determining whether a pulse discharge starting condition is satisfied or not in a process of receiving the charging of a charged vehicle; under the condition that the pulse discharging starting condition is met, a pulse discharging request is sent to the charging vehicle, discharging is conducted, and the pulse discharging request is used for indicating the charging vehicle to stop charging; and when a pulse discharge ending condition is reached, sending a charging request to the charging vehicle to request the charging vehicle to recover charging. Based on the scheme of the embodiment of the invention, the safety in the vehicle-to-vehicle charging process can be improved.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a vehicle-to-vehicle charging control method, a vehicle-to-vehicle charging control device, an electronic device, a computer-readable storage medium, and a computer program product. Background Art

[0002] During the use of electric vehicles, when electric vehicles need to be replenished with energy, such as when the electric vehicles are insufficient in energy, they are generally replenished with energy through AC or DC charging piles. However, the convenience of charging is affected by the number and distribution of charging piles. With the development of mutual charging technology between vehicles, electric vehicles can be charged by electric vehicles, thus providing a favorable charging option for vehicles that cannot or are inconvenient to drive to the next charging pile. However, the current car-to-car charging method has the need to improve the safety of the charging process. Summary of the invention

[0003] Based on this, it is necessary to provide a car-to-car charging control method, a car-to-car charging control device, an electronic device, a computer-readable storage medium and a computer program product that can ensure charging safety during the car-to-car charging process in response to the above technical problems.

[0004] In a first aspect, the present application provides a vehicle-to-vehicle charging control method, the method comprising:

[0005] During the charging process of the charging vehicle, determining whether the pulse discharge starting conditions are met;

[0006] When the pulse discharge start condition is met, a pulse discharge request is sent to the charging vehicle and discharge is performed, wherein the pulse discharge request is used to instruct the charging vehicle to suspend charging;

[0007] When the pulse discharge end condition is reached, a charging request is sent to the charging vehicle to request the charging vehicle to resume charging.

[0008] Based on the vehicle-to-vehicle charging control method provided by the embodiments of the present application, during the vehicle-to-vehicle charging process, when the powered vehicle meets the pulse discharge start condition, the powered vehicle sends a pulse discharge request to the charging vehicle and discharges. The pulse discharge request instructs the charging vehicle to pause charging, and when the pulse discharge end condition is reached, a charging request is sent to the charging vehicle to request the charging vehicle to resume charging. Thus, during the vehicle-to-vehicle charging process, the powered vehicle not only receives the energy provided during the charging process of the charging vehicle, but also discharges intermittently, which can promote the lithium / sodium reinsertion of the powered vehicle, help restore the cell capacity of the powered vehicle, improve the cell life, and at the same time make the lithium / sodium deposition morphology more uniform, effectively avoiding the occurrence of the situation where lithium / sodium dendrites locally grow and pierce the diaphragm, and improving the charging safety during the vehicle-to-vehicle charging process.

[0009] In some embodiments, before receiving the charging from the charging vehicle, it further includes: when the charge and discharge conditions are met, sending a charging request to the charging vehicle.

[0010] Thus, during the vehicle-to-vehicle charging process, when the charge and discharge conditions are met, the powered vehicle sends a charging request to the charging vehicle to enter the vehicle-to-vehicle charging process, so as to further improve the safety of the vehicle-to-vehicle charging process.

[0011] In some embodiments, before determining whether the charge and discharge conditions are met, the method further includes:

[0012] Performing handshake communication with the other vehicle, and determining the charging vehicle and the powered vehicle for vehicle-to-vehicle charge and discharge according to the handshake communication result.

[0013] Thus, when determining the charging vehicle and the powered vehicle, after performing handshake communication between the two vehicles, according to the handshake communication result, it is determined which vehicle is the charging vehicle and which vehicle is the powered vehicle during the vehicle-to-vehicle charging process, so as to improve the communication reliability between the two vehicles during the vehicle-to-vehicle charging process and further improve the safety of the charging process.

[0014] In some embodiments, before determining whether the charge and discharge conditions are met, the method further includes:

[0015] Receiving a vehicle type confirmation instruction, and confirming itself as the powered vehicle according to the vehicle type confirmation instruction.

[0016] Thus, when determining the charging vehicle and the powered vehicle, it can be directly based on the received vehicle type confirmation instruction to determine whether it is the charging vehicle or the powered vehicle, so that it is not limited to the charging from the high-power vehicle to the low-power vehicle, and can be applied to more scenarios where vehicle-to-vehicle charging is required.

[0017] In some embodiments, when the remaining power of the charging vehicle is greater than a first preset power and the remaining power of the power-receiving vehicle is less than a second preset power, it is determined that the charging and discharging conditions are met.

[0018] Only when the remaining power of the charging vehicle is greater than the first preset power and the remaining power of the power-receiving vehicle is less than the second preset power, it is determined that the charging and discharging conditions are met, so as to ensure that the charging vehicle has sufficient power and supplying power externally will not affect the use of the charging vehicle, and it can enable the power-receiving vehicle to have power margin to receive charging, thereby further improving the safety of vehicle-to-vehicle charging.

[0019] In some embodiments, the first preset power is less than the second preset power.

[0020] Thus, by setting the first preset power to be less than the second preset power, even when the remaining power of the charging vehicle is less than that of the power-receiving vehicle, the charging vehicle can charge the power-receiving vehicle, that is, a vehicle with low power can also charge a vehicle with high power to meet the charging needs of the power-receiving vehicle, and it can be applicable to more scenarios where vehicle-to-vehicle charging is required.

[0021] In some embodiments, sending a pulse discharge request to the charging vehicle and discharging includes: sending a pulse discharge request to the charging vehicle and discharging to the charging vehicle.

[0022] Thus, when the power-receiving vehicle discharges, it can discharge to the charging vehicle to improve the safety of the vehicle-to-vehicle charging process.

[0023] In some embodiments, sending a pulse discharge request to the charging vehicle and discharging includes: sending a pulse discharge request to the charging vehicle and discharging to the load of the power-receiving vehicle.

[0024] Thus, when the power-receiving vehicle discharges, it can discharge to the load of the power-receiving vehicle, and during the vehicle-to-vehicle charging process, electrical energy can be provided to the load of the power-receiving vehicle at the same time to improve the experience during the vehicle-to-vehicle charging process.

[0025] In some embodiments, the method further includes: when the discharging duration reaches a preset duration, it is determined that the pulse discharge end condition is reached.

[0026] Thus, after the discharging duration of the power-receiving vehicle reaches the preset duration, the power-receiving vehicle determines that the pulse discharge end condition is reached, thereby ending the discharging process and sending a charging request to the charging vehicle again to enter the process of receiving charging from the charging vehicle again, and so on, thereby completing the entire process of vehicle-to-vehicle charging.

[0027] In some embodiments, the preset duration is greater than or equal to 3 seconds and less than or equal to 5 minutes.

[0028] Therefore, by setting the discharge duration of the power-receiving vehicle within a reasonable range, it is possible to ensure that the power-receiving vehicle has a safe discharge duration, and the discharge duration is not too long to affect the efficiency of vehicle-to-vehicle charging. Thus, while improving the safety of vehicle-to-vehicle charging, the efficiency of vehicle-to-vehicle charging is also enhanced.

[0029] In a second aspect, the present application provides a vehicle-to-vehicle charging control device, which includes:

[0030] A charging monitoring module, configured to determine whether a pulse discharge start condition is met during the process of receiving charging from the charging vehicle;

[0031] A charging control module, configured to send a pulse discharge request to the charging vehicle and perform discharge when the discharge monitoring module determines that the pulse discharge start condition is met, and send a charging request to the charging vehicle to request the charging vehicle to resume charging when the pulse discharge end condition is reached. The pulse discharge request is used to instruct the charging vehicle to pause charging.

[0032] In a third aspect, the present application provides an electronic device, including a memory and a processor. The memory stores a computer program. Wherein, when the processor executes the computer program, the steps of the method in any of the above embodiments are implemented.

[0033] In a fourth aspect, the present application provides a computer-readable storage medium, on which a computer program is stored. Wherein, when the computer program is executed by a processor, the steps of the method in any of the above embodiments are implemented.

[0034] In a fifth aspect, the present application provides a computer-readable storage medium, on which a computer program is stored. Wherein, when the computer program is executed by a processor, the steps of the method in any of the above embodiments are implemented.

[0035] The above description is only an overview of the technical solution of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented according to the content of the description. And in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the specific embodiments of the present application are specifically described below. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] By reading the detailed description of the preferred embodiments below, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present application. And in all the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0037] Figure 1Schematic diagram of the application scenario of vehicle - to - vehicle charging according to some embodiments of the present application;

[0038] Figure 2 Schematic diagram of the application scenario of vehicle - to - vehicle charging according to other embodiments of the present application;

[0039] Figure 3 Schematic flowchart of the vehicle - to - vehicle charging control method according to some embodiments of the present application;

[0040] Figure 4 Schematic flowchart of the vehicle - to - vehicle charging control method according to other embodiments of the present application;

[0041] Figure 5 Schematic flowchart of the vehicle - to - vehicle charging control method according to other embodiments of the present application;

[0042] Figure 6 Structural block diagram of the vehicle - to - vehicle charging control device according to some embodiments of the present application;

[0043] Figure 7 Internal structure diagram of the electronic device according to some embodiments of the present application. Detailed implementation manners

[0044] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0045] The embodiments of the technical solutions of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solutions of the present application more clearly, and thus are only examples and cannot be used to limit the protection scope of the present application.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above - mentioned drawings are intended to cover non - exclusive inclusion.

[0047] In the description of the embodiments of the present application, technical terms such as "first" and "second" are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity, specific order or primary - secondary relationship of the indicated technical features. In the description of the embodiments of the present application, "a plurality" means more than two, unless otherwise specifically defined.

[0048] References to "embodiments" in this document mean that the specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0049] In the description of the embodiments of the present application, the term "and / or" is merely a description of the associated relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally represents an "or" relationship between the associated objects before and after.

[0050] In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two). Similarly, "multiple groups" refers to two or more groups (including two groups), and "multiple pieces" refers to two or more pieces (including two pieces).

[0051] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "connection" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0052] Currently, with the popularization of electric vehicles, the convenience of charging electric vehicles has also become an important requirement in the use of electric vehicles. Currently, when an electric vehicle needs to replenish energy, such as when the remaining battery power of the electric vehicle is insufficient, or when the electric vehicle still has a relatively large amount of remaining battery power but needs more power to enable the electric vehicle to travel as far as possible, etc., usually the electric vehicle is driven to a charging pile for charging to replenish energy. However, charging piles are usually set at fixed locations, and for areas such as towns and suburbs, the configuration of charging piles may not be sufficient. Thus, when the vehicle is driving in areas such as towns and suburbs, if there is a need to charge the electric vehicle, it may not be able to drive to the charging pile in time for charging, or even if it can drive to the charging pile for charging, the driving direction to the charging pile may not be the same as the direction of the destination that the driver originally intended to go, resulting in a relatively long time spent on the way to charge.

[0053] Based on this, there has emerged a vehicle-to-vehicle charging technology that can charge an electric vehicle with another electric vehicle. When an electric vehicle needs to be charged, if it is inconvenient to drive to a charging pile, or even if it can drive to a charging pile but requires a long distance, and if the current other electric vehicles have sufficient power and can allocate a part of their power to it, then the other electric vehicles can charge this electric vehicle, thus providing a favorable charging option for this vehicle.

[0054] Currently, during the vehicle-to-vehicle charging process, when the charging vehicle (i.e., the vehicle that provides power and outputs electrical energy outward) charges the power-receiving vehicle (i.e., the vehicle that needs to replenish power), it usually charges continuously in order to transfer electrical energy from the charging vehicle to the power-receiving vehicle as soon as possible. However, for the power-receiving vehicle, if the charging speed is too high, it is easy to cause serious accumulation of lithium ions on the surface of the battery of the power-receiving vehicle, and there is a risk of lithium precipitation during the charging process. Moreover, the precipitated lithium dendrites may also pierce the battery separator, resulting in short circuit between the positive and negative electrodes, presenting a safety risk.

[0055] Through research, it is found that during the vehicle-to-vehicle charging process, when the charging vehicle charges the power-receiving vehicle, the power-receiving vehicle can perform short-term discharging to promote the re-insertion of the precipitated lithium in the power-receiving vehicle, inhibit the continuous accumulation of the precipitated lithium, and improve the safety during the vehicle-to-vehicle charging process. Further, during the discharging process, the power-receiving vehicle can discharge to the charging vehicle, thus realizing a two-way charging process during the vehicle-to-vehicle charging process to further improve safety. Further, by reasonably limiting the charging and discharging conditions, a vehicle with low power can also charge a vehicle with high power, without being limited to only high-power vehicles charging low-power vehicles, which can meet the requirements of vehicle-to-vehicle charging in actual scenarios.

[0056] Reference Figure 1 、 Figure 2 As shown, when vehicle-to-vehicle charging is required, the first vehicle 10 and the second vehicle 20 establish a communication connection, and both the first vehicle 10 and the second vehicle 20 are electric vehicles. Among them, the first vehicle 10 and the second vehicle 20 can be connected through the cable 30, or the communication connection between the first vehicle 10 and the second vehicle 20 can be realized through the energy conversion device 40. Reference Figure 2As shown, taking the communication connection between the first vehicle 10 and the second vehicle 20 through the energy conversion device 40 as an example, the first vehicle 10 is connected to the energy conversion device 40 through the cable 301, and the second vehicle 20 is connected to the energy conversion device 40 through the cable 302. The energy conversion device 40 is a device capable of realizing communication and energy transmission between the first vehicle 10 and the second vehicle 20. For example, after the electric energy of the first vehicle 10 is transmitted to the energy conversion device 40 through the cable 301, the energy conversion device 40 converts its energy and then transmits it to the second vehicle 20 through the cable 302. After the electric energy of the second vehicle 20 is transmitted to the energy conversion device 40 through the cable 302, the energy conversion device 40 converts its energy and then transmits it to the first vehicle 10 through the cable 301.

[0057] It should be understood that in other embodiments, the first vehicle 10 and the second vehicle 20 may also be connected and communicate in other ways, as long as the communication between the first vehicle 10 and the second vehicle 20 can be realized, and the electric energy transmission between the first vehicle 10 and the second vehicle 20 can be realized to complete the vehicle-to-vehicle charging process.

[0058] Reference Figure 3 As shown, an embodiment of the present application provides a vehicle-to-vehicle charging control method, which will be described by taking the power receiving vehicle in the vehicle-to-vehicle charging process as an example. Among them, the method includes:

[0059] Step S200: During the process of receiving charging from the charging vehicle, determine whether the pulse discharge start condition is satisfied.

[0060] The process of receiving charging from the charging vehicle means that the power receiving vehicle and the charging vehicle have already started the vehicle-to-vehicle charging process, and the charging vehicle is transmitting its own electric energy to the power receiving vehicle to charge the power receiving vehicle. Among them, the way for the charging vehicle and the power receiving vehicle to start charging is not limited, as long as it is in the process of the charging vehicle charging the power receiving vehicle.

[0061] The pulse discharge start condition refers to the condition that the charging vehicle pauses charging the power receiving vehicle and the power receiving vehicle starts discharging. The specific pulse discharge start condition is not limited and can be defined in combination with various technical requirements.

[0062] For example, in some embodiments, it may be that the charging duration of the charging vehicle to the power-receiving vehicle reaches a certain predetermined charging duration, and it is considered that the pulse discharge start condition is met. The predetermined charging duration can be set according to actual needs. For example, only one predetermined charging duration is set, and each time the predetermined charging duration is reached, it is considered that the pulse discharge start condition is met. Or multiple predetermined charging durations are set and arranged in sequence. When the charging duration of the first charging reaches the first predetermined charging duration, or the charging duration of the second charging reaches the second predetermined charging duration, and so on for the others, it is determined that the pulse discharge start condition is met.

[0063] In other embodiments, it may be that the amount of electricity charged by the charging vehicle to the power-receiving vehicle reaches a certain predetermined amount of electricity, and it is considered that the pulse discharge start condition is met. The predetermined amount of electricity can be set according to actual needs. For example, only one predetermined amount of electricity is set, and each time the predetermined amount of electricity is reached during the charging process, it is considered that the pulse discharge start condition is met. Or multiple predetermined amounts of electricity are set and arranged in sequence. When the amount of electricity of the power-receiving vehicle reaches the first predetermined amount of electricity after the first charging, or the amount of electricity of the power-receiving vehicle reaches the second predetermined amount of electricity after the second charging, and so on for the others, it is determined that the pulse discharge start condition is met.

[0064] It should be understood that in other embodiments, the pulse discharge start condition can also be set in other ways.

[0065] Step S400: When the pulse discharge start condition is met, send a pulse discharge request to the charging vehicle and perform discharge. The pulse discharge request is used to instruct the charging vehicle to suspend charging.

[0066] Meeting the pulse discharge start condition indicates that the power-receiving vehicle needs to start short-term discharge. Therefore, the power-receiving vehicle sends a pulse discharge request to the charging vehicle. The pulse discharge request is used to inform the charging vehicle that it needs to discharge, so as to instruct the charging vehicle to suspend charging, and then the power-receiving vehicle starts to discharge.

[0067] Step S600: When the pulse discharge end condition is reached, send a charging request to the charging vehicle to request the charging vehicle to resume charging.

[0068] The purpose of the discharge process of the power-receiving vehicle is to reduce the safety risks caused by lithium plating during continuous charging of the power-receiving vehicle. If the discharge process takes too long, it is easy to cause the power of the power-receiving vehicle to be insufficient, affecting the efficiency of vehicle-to-vehicle charging. Therefore, when the pulse discharge end condition is reached, the power-receiving vehicle sends a charging request to the charging vehicle to enter the process of receiving charging from the charging vehicle again, and so on, thus completing the entire process of vehicle-to-vehicle charging.

[0069] Based on the vehicle - to - vehicle charging control method provided by the embodiments of the present application, during the vehicle - to - vehicle charging process, when the powered vehicle meets the pulse discharge start condition, the powered vehicle sends a pulse discharge request to the charging vehicle and discharges. The pulse discharge request instructs the charging vehicle to pause charging, and when the pulse discharge end condition is reached, a charging request is sent to the charging vehicle to request the charging vehicle to resume charging. Thus, during the vehicle - to - vehicle charging process, the powered vehicle not only receives the energy provided during the charging process of the charging vehicle, but also discharges intermittently, which can promote the lithium / sodium re - insertion of the powered vehicle, help restore the capacity of the battery cells of the powered vehicle, improve the battery cell life, and at the same time make the lithium / sodium deposition morphology more uniform, effectively avoiding the occurrence of the situation where lithium / sodium dendrites locally grow and pierce the separator, and enhancing charging safety.

[0070] In some embodiments, as shown in Figure 4 before the powered vehicle accepts charging from the charging vehicle in step S200 above, it further includes:

[0071] Step S100: Send a charging request to the charging vehicle when the charge - discharge conditions are met.

[0072] The charge - discharge conditions refer to the conditions that need to be met for the charging vehicle to charge the powered vehicle. The specific charge - discharge conditions can be set according to actual technical needs. When the charge - discharge conditions are met, the powered vehicle sends a charging request to the charging vehicle to enter the charging process.

[0073] Thus, during the vehicle - to - vehicle charging process, only when the charge - discharge conditions are met does the powered vehicle send a charging request to the charging vehicle to enter the vehicle - to - vehicle charging process, further improving the safety of the vehicle - to - vehicle charging process.

[0074] In some embodiments, before determining whether the charge - discharge conditions are met, the method further includes:

[0075] Perform handshake communication with the other vehicle, and determine the charging vehicle and the powered vehicle for vehicle - to - vehicle charge - discharge according to the handshake communication result.

[0076] Among them, the way of handshake communication between the two vehicles is not limited, as long as it can determine which of the two vehicles is the charging vehicle and which is the powered vehicle through the handshake communication result.

[0077] Thus, when determining the charging vehicle and the powered vehicle, after performing handshake communication between the two vehicles, determine which vehicle is the charging vehicle and which vehicle is the powered vehicle during the vehicle - to - vehicle charging process according to the handshake communication result, improving the communication reliability between the two vehicles during the vehicle - to - vehicle charging process and further enhancing the safety of the charging process.

[0078] In some embodiments, before determining whether the charging and discharging conditions are met, the method further includes:

[0079] Receiving a vehicle type confirmation instruction, and confirming itself as a power receiving vehicle according to the vehicle type confirmation instruction.

[0080] Wherein, the issuer of the vehicle type confirmation instruction is not limited, as long as it can indicate the vehicle types of the two vehicles (charging vehicle or power receiving vehicle) during vehicle-to-vehicle charging. Combining Figure 2 Taking the example shown, the vehicle type confirmation instruction can be issued by the energy conversion device 40 to indicate the vehicle types of the two vehicles during vehicle-to-vehicle charging. For example, the energy conversion device 40 issues a vehicle type confirmation instruction to the confirmed power receiving vehicle to indicate that it is a power receiving vehicle, and issues a vehicle type confirmation instruction to the confirmed charging vehicle to indicate that it is a charging vehicle. It should be understood that the vehicle type confirmation instruction can also be issued to the two vehicles by other devices.

[0081] Thus, when determining the charging vehicle and the power receiving vehicle, it can directly determine whether it is a charging vehicle or a power receiving vehicle based on the received vehicle type confirmation instruction, so that it is not limited to high-power vehicles charging low-power vehicles, and can be applicable to more scenarios where vehicle-to-vehicle charging is required.

[0082] In some embodiments, when the remaining power of the charging vehicle is greater than a first preset power, and the remaining power of the power receiving vehicle is less than a second preset power, it is determined that the charging and discharging conditions are met.

[0083] The remaining power of the charging vehicle refers to the remaining power of the energy storage device of the charging vehicle, which can be reflected by the SOC (state of charge) of the charging vehicle. The remaining power of the power receiving vehicle refers to the remaining power of the energy storage device of the power receiving vehicle, which can also be reflected by the SOC of the power receiving vehicle.

[0084] Only when the remaining power of the charging vehicle is greater than the first preset power and the remaining power of the power receiving vehicle is less than the second preset power, it is determined that the charging and discharging conditions are met, so as to ensure that the charging vehicle has sufficient power and providing power outward will not affect the use of the charging vehicle, and enable the power receiving vehicle to have power margin to receive charging, so as to further improve the safety of vehicle-to-vehicle charging.

[0085] In some embodiments, the first preset power is less than the second preset power.

[0086] Thus, by setting the first preset power less than the second preset power, even when the remaining power of the charging vehicle is less than that of the power-receiving vehicle, the charging vehicle can charge the power-receiving vehicle, that is, a vehicle with low power can also charge a vehicle with high power to meet the charging needs of the power-receiving vehicle, and it can be applied to more scenarios where vehicle-to-vehicle charging is required.

[0087] Among them, the specific values of the first preset power and the second preset power can be set according to actual technical requirements, as long as it can meet the basic usage requirements of the charging vehicle when the remaining power is the first preset power, and the power-receiving vehicle can meet the power demand and will not cause oversaturation of the vehicle power when the remaining power is the second preset power. For example, in some embodiments, the first preset power can be set to 30% SOC, and the second preset power can be set to 80% SOC.

[0088] In some other embodiments, sending a pulse discharge request to the charging vehicle and discharging includes: sending a pulse discharge request to the charging vehicle and discharging to the load of the power-receiving vehicle.

[0089] Among them, discharging to the load of the power-receiving vehicle can refer to providing the electrical energy of the power-receiving vehicle to the load of the power-receiving vehicle, and through the use of electrical energy by the load, the discharging process is completed. The load of the power-receiving vehicle is not limited, such as the speaker, air conditioner, etc. of the power-receiving vehicle.

[0090] Thus, when the power-receiving vehicle discharges, it can discharge to the load of the power-receiving vehicle, and during the vehicle-to-vehicle charging process, electrical energy can be provided to the load of the power-receiving vehicle at the same time to improve the experience during the vehicle-to-vehicle charging process.

[0091] In some embodiments, sending a pulse discharge request to the charging vehicle and discharging includes: sending a pulse discharge request to the charging vehicle and discharging to the charging vehicle.

[0092] Thus, when the power-receiving vehicle discharges, it can discharge to the charging vehicle to improve the safety of the vehicle-to-vehicle charging process.

[0093] In some embodiments, the method further includes: when the discharging duration reaches a preset duration, determining that the pulse discharge end condition is reached.

[0094] Among them, the preset duration can be set according to actual technical requirements, as long as it can meet the requirement of reducing the safety risk caused by lithium plating and meet the charging efficiency requirement. In some embodiments, the preset duration can be greater than or equal to the first preset duration and less than or equal to the second preset duration.

[0095] Among them, the first preset duration can be determined based on the need to meet the requirement of reducing the safety risk caused by lithium plating. If the discharge time is too short, the process of lithium intercalation may not be fully completed. The second preset duration can be determined based on the need to meet the charging efficiency. If the discharge duration is too long, it may cause the powered vehicle to discharge too much power. Even if the powered vehicle discharges power to the charging vehicle during the discharge process, it may also cause the charging vehicle to repeatedly charge the powered vehicle, increasing the overall duration of the vehicle-to-vehicle charging process. Therefore, by setting the second preset duration, it helps to meet the charging efficiency requirement while ensuring safety.

[0096] Through experimental determination, when the discharge duration is greater than or equal to 3 seconds, the degree of lithium plating can be alleviated to a certain extent. Therefore, the first preset duration can be set to 3 seconds. In addition, when the discharge duration exceeds 5 minutes, the powered vehicle usually discharges more power. Therefore, the second preset duration can be set to 5 minutes. That is, in some specific examples, the preset duration is greater than or equal to 3 seconds and less than or equal to 5 minutes. In actual technical applications, the specific value of the preset duration can be determined according to actual technical needs. For example, in combination with the actual situations of the charging vehicle and the discharging vehicle, such as vehicle parameters, battery state parameters, etc., the specific value of the preset duration is comprehensively determined. The embodiments of the present application do not make specific limitations.

[0097] Thus, by setting the discharge duration of the powered vehicle within a reasonable range, the powered vehicle can have a safe discharge duration, and the discharge duration will not be too long to affect the efficiency of vehicle-to-vehicle charging. Therefore, while improving the safety of vehicle-to-vehicle charging, the efficiency of vehicle-to-vehicle charging is also improved.

[0098] Based on the above embodiments, the following will be illustrated with some specific application examples.

[0099] Taking vehicle A as an example, when vehicle A has a charging requirement, if vehicle A needs to be charged by another vehicle B, vehicle A and vehicle B are connected. Among them, vehicle A and vehicle B can be connected and communicate through a DC charging harness, a charge-discharge machine, or a charge-discharge gun, etc.

[0100] In some embodiments, after vehicle A and vehicle B are connected, vehicle A and vehicle B complete handshake communication to determine the charging vehicle and the powered vehicle among them. Taking the connection through a DC charging harness as an example, when vehicle A and vehicle B use the DC charging harness for charging and discharging, signal transmission can be completed through the low-voltage cable of the DC charging harness based on the CAN bus protocol to complete the handshake. In other embodiments, other devices can be used, such as Figure 2The energy conversion device shown in the figure sends a vehicle type confirmation instruction to vehicle A to indicate that it is a charging vehicle, and sends a vehicle type confirmation instruction to vehicle B to indicate that it is a power receiving vehicle.

[0101] Taking vehicle A and vehicle B completing handshake communication to determine the charging vehicle and the power receiving vehicle among them as an example, refer to Figure 5 As shown, in this specific example, the following steps may be included:

[0102] Step S501: The two vehicles complete a handshake. Through the handshake, a communication connection can be established between the two vehicles to facilitate data interaction.

[0103] Step S502: Determine the charging vehicle and the power receiving vehicle according to the handshake communication result. For example, vehicle A determines itself as the charging vehicle according to the handshake communication result, and vehicle B determines itself as the power receiving vehicle according to the handshake communication result.

[0104] Among them, the determination of the charging vehicle and the power receiving vehicle can be determined in combination with actual needs. For example, in the above handshake process, the two vehicles are determined based on the protocol during the handshake process. For another example, after the handshake is successful, one of the vehicles is designated as the power receiving vehicle. For another example, taking the connection between the two vehicles through a charging and discharging machine or a charging and discharging gun as an example, the charging and discharging machine or the charging and discharging gun can be provided with a main interface and a slave interface. The vehicle connected to the main interface of the charging and discharging machine or the charging and discharging gun is the power receiving vehicle, and the vehicle connected to the slave interface of the charging and discharging machine or the charging and discharging gun is the charging vehicle.

[0105] It should be understood that in other embodiments, the charging vehicle and the power receiving vehicle can also be determined by other means. It should be noted that when determining the charging vehicle and the power receiving vehicle, it is not necessary to be limited by the magnitude relationship of the remaining power of the two vehicles. It can be that the vehicle with the smaller remaining power is used as the power receiving vehicle.

[0106] Step S503: The power receiving vehicle determines whether the charging and discharging conditions are met. For example, it is judged whether the remaining power of the charging vehicle is greater than the first preset power SOC1, and whether the remaining power of the power receiving vehicle is less than the second preset power SOC2. If the charging and discharging conditions are met, that is, the remaining power of the charging vehicle is greater than SOC1 and the remaining power of the power receiving vehicle is less than SOC2, it is determined that the charging and discharging conditions are met, then the power receiving vehicle sends a charging request to the charging vehicle and enters step S504. Otherwise, it indicates that the power supply vehicle cannot supply power to the power receiving vehicle and directly enters step S510 to end the process.

[0107] Among them, the power receiving vehicle can obtain the information of the remaining power of the charging vehicle through the communication process with the charging vehicle.

[0108] Step S504: The charging vehicle charges the power receiving vehicle.

[0109] Step S505: The power-receiving vehicle determines whether the pulse discharge start condition is satisfied. If not, step S504 is maintained and the power-supplying vehicle continues to discharge to the power-receiving vehicle. If satisfied, step S506 is entered.

[0110] Step S506: The power-receiving vehicle sends a pulse discharge request to the power-supplying vehicle, and then enters step S507.

[0111] Wherein, after receiving the pulse discharge request, the power-supplying vehicle can gradually or rapidly reduce the charging current for charging the power-receiving vehicle until it is less than a preset current value, or even the charging current is 0.

[0112] Step S507: The power-receiving vehicle discharges to the power-supplying vehicle. Among them, the power-receiving vehicle can start discharging to the power-supplying vehicle when the charging current of the power-supplying vehicle for charging is less than a preset value or reaches 0.

[0113] Step S508: The power-receiving vehicle determines whether the discharge duration has reached the preset duration T. If not, the power-receiving vehicle continues to discharge. Otherwise, step S509 is entered.

[0114] Step S509, the power-receiving vehicle sends a charging request to the power-supplying vehicle to request the power-supplying vehicle to resume charging the power-receiving vehicle, and then returns to the above step S503.

[0115] It should be understood that although the steps in the flowcharts involved in the above-described embodiments are sequentially shown according to the arrows, these steps do not necessarily need to be executed in the order indicated by the arrows. Unless otherwise clearly stated in this article, the execution of these steps has no strict order limit, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-described embodiments may include multiple steps or multiple stages. These steps or stages do not necessarily need to be executed at the same time, but can be executed at different times. The execution order of these steps or stages does not necessarily need to be sequential, but can be executed alternately or alternately with at least a part of other steps or steps or stages in other steps.

[0116] Based on the same inventive concept, the embodiments of the present application also provide a vehicle-to-vehicle charging control device for implementing the vehicle-to-vehicle charging control method described above. The implementation solutions provided by this device to solve problems are similar to the implementation solutions described in the above method. Therefore, for the specific limitations in one or more embodiments of the vehicle-to-vehicle charging control device provided below, reference can be made to the limitations on the vehicle-to-vehicle charging control method in the above text, and details will not be repeated here.

[0117] The present application also provides a vehicle-to-vehicle charging control device, wherein, refer to Figure 6As shown, the vehicle - to - vehicle charging control device in some embodiments includes a charging monitoring module 601 and a charging control module 602. Among them:

[0118] The charging monitoring module 601 is configured to determine whether the pulse discharge start condition is met during the process of receiving charging from the charging vehicle.

[0119] The charging control module 602 is configured to, when the discharge monitoring module determines that the pulse discharge start condition is met, send a pulse discharge request to the charging vehicle, and perform discharge, and when the pulse discharge end condition is reached, send a charging request to the charging vehicle to request the charging vehicle to resume charging, and the pulse discharge request is used to instruct the charging vehicle to suspend charging.

[0120] In some embodiments, the device further includes:

[0121] The charging control module 602 is further configured to send a charging request to the charging vehicle when the charge - discharge condition is met.

[0122] In some embodiments, the device further includes:

[0123] A communication processing module, which performs handshake communication with the other vehicle, and determines the charging vehicle and the power - receiving vehicle for vehicle - to - vehicle charge - discharge according to the handshake communication result.

[0124] In some embodiments, the charging control module 602 is further configured to receive a vehicle type confirmation instruction, and confirm itself as the power - receiving vehicle according to the vehicle type confirmation instruction.

[0125] In some embodiments, the charging control module 602 is configured to determine that the charge - discharge condition is met when the remaining power of the charging vehicle is greater than a first preset power, and the remaining power of the power - receiving vehicle is less than a second preset power.

[0126] In some embodiments, the first preset power is less than the second preset power.

[0127] In some embodiments, the charging control module 602 is configured to send a pulse discharge request to the charging vehicle and discharge to the charging vehicle.

[0128] In some embodiments, the charging control module 602 is configured to send a pulse discharge request to the charging vehicle and discharge to the load of the power - receiving vehicle.

[0129] In some embodiments, the charging control module 602 is configured to determine that the pulse discharge end condition is reached when the discharge duration reaches a preset duration.

[0130] In some embodiments, the preset duration is greater than or equal to 3 seconds and less than or equal to 5 minutes.

[0131] Each module in the above vehicle - to - vehicle charging control device can be implemented in whole or in part by software, hardware, or a combination thereof. Each of the above modules can be embedded in the processor of the electronic device in hardware form or be independent of it, or can be stored in the memory of the electronic device in software form, so that the processor can call and execute the operations corresponding to each of the above modules.

[0132] In one embodiment, an electronic device is provided. The electronic device can be a terminal, and its internal structure diagram can be as Figure 7 shown. The electronic device includes a processor, a memory, a communication interface, and an input device connected through a system bus. Among them, the processor of the electronic device is used to provide computing and control capabilities. The memory of the electronic device includes a non - volatile storage medium and an internal memory. The non - volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non - volatile storage medium. The communication interface of the electronic device is used to communicate with external devices in a wired or wireless manner. For example, it can communicate with the other vehicle. The wireless manner can be implemented through WIFI, a carrier network, NFC (Near Field Communication), or other technologies. When the computer program is executed by the processor, it implements a vehicle - to - vehicle charging control method. The input device of the electronic device can be a touch layer covering the display screen, or a button, a trackball, or a touchpad provided on the housing of the electronic device, or an external keyboard, touchpad, or mouse, etc.

[0133] Those skilled in the art can understand that Figure 7 the structure shown in

[0134] is only a block diagram of some structures related to the solution of this application, and does not constitute a limitation on the electronic device to which the solution of this application is applied. The specific electronic device may include more or fewer components than those shown in the figure, or combine some components, or have a different component layout.

[0135] In one embodiment, an electronic device is provided, including a memory and a processor. A computer program is stored in the memory. When the processor executes the computer program, it implements the steps of the vehicle - to - vehicle charging control method in any of the above - mentioned embodiments.

[0136] In one embodiment, a computer program product or a computer program is provided. The computer program product or the computer program includes computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, causing the computer device to perform the steps of the vehicle-to-vehicle charging control method in any of the above embodiments.

[0137] Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be completed by instructing relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above methods. Among them, any reference to a memory, storage, database, or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memories. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, or optical memory, etc. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc.

[0138] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be covered by the scope of the claims and the description of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A vehicle-to-vehicle charging control method, characterized in that, the method includes: During the process of the receiving vehicle being charged, determining whether the pulse discharge start condition is met; When the pulse discharge start condition is met, sending a pulse discharge request to the charging vehicle and performing discharge, where the pulse discharge request is used to instruct the charging vehicle to pause charging; When the pulse discharge end condition is reached, sending a charging request to the charging vehicle to request the charging vehicle to resume charging.

2. The method according to claim 1, characterized in that, before receiving the charging of the charging vehicle, it further includes: When the charge-discharge condition is met, sending a charging request to the charging vehicle.

3. The method according to claim 2, characterized in that, before determining whether the charge-discharge condition is met, the method further includes: Performing handshake communication with the other vehicle, and determining the charging vehicle and the power-receiving vehicle for vehicle-to-vehicle charge-discharge according to the handshake communication result.

4. The method according to claim 2, characterized in that, before determining whether the charge-discharge condition is met, the method further includes: Receiving a vehicle type confirmation instruction, and confirming that itself is a power-receiving vehicle according to the vehicle type confirmation instruction.

5. The method according to claim 2 or 3 or 4, characterized in that: When the remaining power of the charging vehicle is greater than the first preset power, and the remaining power of the power-receiving vehicle is less than the second preset power, it is determined that the charge-discharge condition is met.

6. The method according to claim 5, characterized in that, the first preset power is less than the second preset power.

7. The method according to any one of claims 1 to 6, characterized in that, sending the pulse discharge request to the charging vehicle and performing discharge includes: Sending a pulse discharge request to the charging vehicle and discharging to the charging vehicle; or Sending a pulse discharge request to the charging vehicle and discharging to the load of the power-receiving vehicle.

8. The method according to any one of claims 1 to 7, characterized in that, the method further includes: When the discharge duration reaches the preset duration, determining that the pulse discharge end condition is reached.

9. The method according to claim 8, characterized in that, the preset duration is greater than or equal to 3 seconds and less than or equal to 5 minutes.

10. A vehicle-to-vehicle charging control device, characterized in that, the device includes: A charging monitoring module, used for determining whether the pulse discharge start condition is met during the process of the receiving vehicle being charged; A charging control module, used for, when the discharge monitoring module determines that the pulse discharge start condition is met, sending a pulse discharge request to the charging vehicle and performing discharge, and when the pulse discharge end condition is reached, sending a charging request to the charging vehicle to request the charging vehicle to resume charging, where the pulse discharge request is used to instruct the charging vehicle to pause charging.

11. An electronic device, including a memory and a processor, the memory stores a computer program, characterized in that, when the processor executes the computer program, it implements the steps of the method according to any one of claims 1 to 9.

12. A computer-readable storage medium having a computer program stored thereon, wherein, when the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 9.

13. A computer program product comprising a computer program, wherein, when the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 9.

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