Vehicle emergency charging method, device, equipment and storage medium

Abstract

The application discloses a vehicle emergency charging method and device, equipment and storage medium, and relates to the technical field of vehicles. The vehicle emergency charging method comprises the following steps: when vehicle feedback information meets a preset checking condition, sending request charging function information to the vehicle; when the vehicle feedback vehicle end request function information is received within a preset time length, determining a corresponding function information type according to the vehicle end request function information; when the function information type is a first information type, determining that the charging pile operation mode is an emergency mode; and performing emergency charging of the vehicle according to the emergency mode. The low-voltage auxiliary power supply of the charging pile wakes up the vehicle, and then the high-voltage action is completed, the charging and starting of the vehicle are completed, and the vehicle is started under the condition that the battery pack is fed.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to vehicle emergency charging methods, devices, equipment and storage media. Background Technology

[0002] In the charging circuit specified by national standards, the charging process for a vehicle is as follows: after the vehicle receives high voltage, K5 and K6 are closed. Then, the charging station detects that U1 meets the target voltage value and closes K3 and K4, completing the charging circuit connection and allowing charging to begin. However, in emergency situations where the battery cannot discharge externally, including the 12V battery, the high voltage input cannot be completed, causing the entire charging process to fail. Therefore, how to start the vehicle when the battery cannot discharge externally has become a pressing issue. Summary of the Invention

[0003] The main purpose of this application is to provide a vehicle emergency charging method, device, equipment and storage medium, which aims to solve the technical problem of how to start the vehicle when the battery cannot discharge to the outside.

[0004] To achieve the above objectives, this application proposes a vehicle emergency charging method, which includes: When the vehicle feedback information meets the preset verification conditions, a request for charging function information is sent to the vehicle; When the vehicle-side request function information is received from the vehicle within a preset time period, the corresponding function information type is determined according to the vehicle-side request function information. When the functional information type is the first information type, the charging pile operation mode is determined to be the emergency mode; Emergency charging of the vehicle is performed according to the emergency mode described.

[0005] In one embodiment, before sending the request for charging function information to the vehicle when the vehicle feedback information meets the preset verification conditions, the method further includes: When the charging plug is fully connected to the vehicle and a card swipe operation is detected, the vehicle is woken up by the auxiliary power supply and a handshake message is sent to the vehicle. Upon receiving vehicle feedback information sent by the vehicle based on the new handshake message, the vehicle feedback information is verified according to preset verification conditions.

[0006] In one embodiment, after determining the corresponding function information type based on the vehicle-side function request information upon receiving the vehicle's feedback function information within a preset time period, the method further includes: When the functional information type is the second information type, the charging pile operation mode is determined to be the charging mode; Emergency charging of the vehicle is performed according to the described charging mode.

[0007] In one embodiment, after determining the corresponding function information type based on the vehicle-side function request information upon receiving the vehicle's feedback function information within a preset time period, the method further includes: When the functional information type is the third information type, the charging pile operation mode is determined to be the preheating mode; Emergency charging of the vehicle is performed according to the preheating mode.

[0008] In one embodiment, after determining the corresponding function information type based on the vehicle-side function request information upon receiving the vehicle's feedback function information within a preset time period, the method further includes: When the functional information type is the fourth information type, the charging pile operation mode is determined to be the timeout termination mode; Emergency charging of the vehicle is terminated according to the timeout termination mode.

[0009] In one embodiment, the emergency charging of the vehicle according to the emergency mode includes: The emergency mode is sent to the vehicle so that the vehicle can obtain the battery pack power supply signal based on the mode operation information corresponding to the emergency mode, generate a contactor closing command according to the battery pack power supply signal, generate a corresponding boost function command according to the contactor closing command, and feed back high voltage power-on completion information. Emergency charging of the vehicle is performed based on the high-voltage power-on completion information.

[0010] In one embodiment, the emergency charging of the vehicle based on the power-on completion information includes: Based on the high-voltage power-on completion information, switch the emergency mode to the charging mode; Emergency charging of the vehicle is performed according to the described charging mode.

[0011] Furthermore, to achieve the above objectives, this application also proposes a vehicle emergency charging device, which includes: The sending module is used to send a request for charging function information to the vehicle when the vehicle feedback information meets the preset verification conditions; The processing module is used to determine the corresponding function information type based on the vehicle-side request function information when it receives the vehicle-side request function information within a preset time period. The processing module is also used to determine the charging pile operation mode as emergency mode when the functional information type is the first information type; The control module is used to perform emergency charging of the vehicle according to the emergency mode.

[0012] In addition, to achieve the above objectives, this application also proposes a vehicle emergency charging device, the device comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the vehicle emergency charging method described above.

[0013] In addition, to achieve the above objectives, this application also proposes a storage medium, which is a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, it implements the steps of the vehicle emergency charging method described above.

[0014] In addition, to achieve the above objectives, this application also provides a computer program product, which includes a computer program that, when executed by a processor, implements the steps of the vehicle emergency charging method described above.

[0015] This application sends a charging request to the vehicle when the vehicle's feedback information meets preset verification conditions; upon receiving the vehicle's request within a preset time period, it determines the corresponding function information type based on the request; if the function information type is a first information type, it determines the charging pile's operating mode as emergency mode; and performs emergency charging of the vehicle according to the emergency mode. The vehicle is awakened by the low-voltage auxiliary power supply of the charging pile, thereby completing the high-voltage connection, charging, and starting the vehicle, achieving vehicle startup even when the battery pack is depleted. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a flowchart illustrating an embodiment of the vehicle emergency charging method of this application. Figure 2 This is a schematic diagram of the charging circuit provided in Embodiment 1 of the vehicle emergency charging method of this application; Figure 3 This is a flowchart illustrating Embodiment 2 of the vehicle emergency charging method of this application; Figure 4 A simplified flowchart illustrating the vehicle emergency charging method provided in Embodiment 2 of this application; Figure 5 This is a schematic diagram of the module structure of the vehicle emergency charging device according to an embodiment of this application; Figure 6 This is a schematic diagram of the equipment structure of the hardware operating environment involved in the vehicle emergency charging method in the embodiments of this application.

[0019] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] It should be understood that the specific embodiments described herein are merely illustrative of the technical solutions of this application and are not intended to limit this application.

[0021] To better understand the technical solution of this application, a detailed description will be provided below in conjunction with the accompanying drawings and specific implementation methods.

[0022] The main solution of this application embodiment is as follows: when the vehicle feedback information meets the preset verification conditions, a request for charging function information is sent to the vehicle; when the vehicle-side request for function information is received within a preset time period, the corresponding function information type is determined according to the vehicle-side request for function information; when the function information type is the first information type, the charging pile operation mode is determined to be the emergency mode; and emergency charging of the vehicle is performed according to the emergency mode.

[0023] In the charging circuit specified by national standards, the charging process for a vehicle is as follows: after the vehicle receives high voltage, K5 and K6 are closed. Then, the charging station detects that U1 meets the target voltage value and closes K3 and K4, completing the charging circuit connection and allowing charging to begin. However, in emergency situations where the battery cannot discharge externally, including the 12V battery, the high voltage input cannot be completed, causing the entire charging process to fail. Therefore, how to start the vehicle when the battery cannot discharge externally has become a pressing issue.

[0024] This application proposes a method to send a charging request to the vehicle when the vehicle feedback information meets preset verification conditions; upon receiving the vehicle-side request within a preset time period, determining the corresponding function information type based on the vehicle-side request; if the function information type is a first information type, determining the charging pile operation mode as emergency mode; and performing emergency charging of the vehicle according to the emergency mode. The vehicle is awakened by the low-voltage auxiliary power supply of the charging pile, thereby completing the high-voltage connection, charging, and starting the vehicle, achieving vehicle starting even when the battery pack is depleted.

[0025] It should be noted that the executing entity in this embodiment can be a computing service device with data processing, network communication, and program execution functions, such as a tablet computer, personal computer, or mobile phone, or a vehicle emergency charging device capable of performing the above functions. The following description uses a vehicle emergency charging device as the executing entity to illustrate this embodiment and the subsequent embodiments.

[0026] Based on this, this application provides a vehicle emergency charging method, referring to... Figure 1 , Figure 1 This is a flowchart illustrating the first embodiment of the vehicle emergency charging method of this application.

[0027] In this embodiment, the vehicle emergency charging method includes steps S10 to S40: Step S10: When the vehicle feedback information meets the preset verification conditions, send a request for charging function information to the vehicle. It should be noted that, as Figure 2 As shown, in the charging circuit specified by the national standard, the charging process for a vehicle is as follows: after the vehicle receives high voltage, K5 and K6 are closed. Then, the charging station detects that U1 is at the target voltage value, and closes K3 and K4. The charging circuit is then connected and charging can begin. However, in emergency situations where the battery cannot discharge externally, and even the 12V battery cannot discharge externally, the high voltage input cannot be completed, causing the entire charging process to fail.

[0028] It should be noted that in this embodiment, the charging pile first sends a handshake message (CHR, Charge Handshake Request). After receiving the CHR, the vehicle immediately sends back vehicle information (VIR, Vehicle Information Response). After the protocol verification is passed, the function confirmation stage begins. The charging pile first sends a charging function request (CFR, Charge Function Request) to the vehicle. After receiving the charging function request, the vehicle selects the corresponding function based on the vehicle system self-check and sends a vehicle function response (VFR, Vehicle Function Response). Then, the data interaction stage begins, which can be referred to national standards. Finally, the charging pile selectively enters the corresponding function, such as charging or preheating, based on the vehicle function response.

[0029] As can be understood, vehicle feedback information refers to the information response from the vehicle, that is, the first message sent by the vehicle to the charging pile after receiving the handshake information message (CHR) sent by the charging pile. It is used to respond to the handshake request of the charging pile and provide relevant information about the vehicle. Preset verification conditions refer to the pre-set protocol verification conditions. Request charging function information refers to the charging function request. The charging function request is a message sent by the charging pile to the vehicle after receiving the vehicle information message (VIR) sent by the vehicle. It is used to request to start charging or other functions.

[0030] In practice, the CHR message is sent for 2 seconds. If a VIR message is received within 2 seconds, it is determined that the corresponding preheating function cannot be supported, and the charging process can continue according to the national standard (27920). If no VIR message is received within 2 seconds, the interaction is normal according to the national standard protocol. The CHR contains the charging pile software version information, as shown in Table 1. The vehicle VIR can contain vehicle information: vehicle VIN, current voltage, maximum voltage, maximum current of the battery pack, and supported functions (charging, preheating, etc.).

[0031] Table 1

[0032] In one feasible implementation, steps A11-A12 may be included before step S10: Step A11: When the charging plug is fully connected to the vehicle and a card swipe operation is detected, the vehicle is woken up by the auxiliary power supply and a handshake message is sent to the vehicle. It is understandable that auxiliary power refers to the low-voltage auxiliary power installed in the charging pile, and handshake information refers to the first communication message sent by the charging pile to the vehicle during the charging process of an electric vehicle, which is used to initialize the communication link between the charging pile and the vehicle.

[0033] In practice, the user plugs in the charging gun and completes the card swipe. The charging pile provides A+ and A-, wakes up the vehicle, and the charging pile first sends a handshake information message (CHR) to the vehicle.

[0034] Step A12: Upon receiving vehicle feedback information sent by the vehicle based on the new handshake message, verify the vehicle feedback information according to preset verification conditions.

[0035] Understandably, once the user plugs in the charging gun and completes the card swipe, the charging pile provides A+ and A- to wake up the vehicle. Then, it starts sending CHR messages for 2 seconds. If a VIR message is received within 2 seconds, it is determined that the corresponding preheating function cannot be supported, and the charging process can continue according to the national standard (27920). If no VIR message is received within 2 seconds, the interaction will proceed normally according to the national standard protocol.

[0036] Step S20: When the vehicle-side request function information is received within a preset time period, the corresponding function information type is determined according to the vehicle-side request function information. It is understandable that the preset duration refers to the pre-set duration of the message. Functional information types include no special functional intent or state (int), charging mode, warm-up mode, and emergency mode.

[0037] In practice, after receiving the VIR, the charging pile starts sending a charging function request CFR for 2 seconds, as shown in Table 2. The CFR may include the functions supported by the charging pile, such as charging and preheating. The following situations may occur: as shown in Table 3, if no VFR message is received within 2 seconds, the timeout ends; if a VFR is received within 2 seconds and it is VFR=0x1: charging, the charging pile will then proceed with the charging process; if a VFR is received within 2 seconds and it is VFR=0x2: preheating, the charging pile will then proceed with the preheating process; if VFR=0x3: emergency, the charging pile will then proceed with the emergency process.

[0038] Table 2:

[0039] Table 3:

[0040] In one possible implementation, step A21-A22 may be included after step S20: Step A21: When the functional information type is the second information type, determine the charging pile operation mode as the charging mode; Understandably, the second type of information refers to charging mode information. By analyzing the VFR messages fed back by the vehicle, when the charging mode information is identified, the charging pile's operating mode is determined to be charging mode.

[0041] Step A22: Perform emergency charging of the vehicle according to the charging mode.

[0042] In practice, when the charging pile is in charging mode, it executes the charging process to provide emergency charging for the vehicle and then starts the vehicle.

[0043] In one possible implementation, steps S20 may be followed by steps B21-B22: Step B21: When the functional information type is the third information type, determine the charging pile operation mode as the preheating mode; Understandably, the third information type refers to preheating mode information. By analyzing the VFR messages fed back by the vehicle, when preheating mode information is identified, the charging pile's operating mode is determined to be preheating mode.

[0044] Step B22: Perform emergency charging of the vehicle according to the preheating mode.

[0045] In practice, when the charging pile is in preheating mode, it performs a preheating process to provide emergency charging for the vehicle and then start the vehicle.

[0046] In one possible implementation, steps C21-C22 may be included after step S20: Step C21: When the functional information type is the fourth information type, determine that the charging pile operation mode is the timeout termination mode; Understandably, the fourth information type refers to information about the vehicle not having any particular functional intent or status. By analyzing the VFR messages fed back by the vehicle, when information about the vehicle not having any particular functional intent or status is identified, the charging pile operation mode is determined to be the timeout termination mode.

[0047] Step C22: End the emergency charging of the vehicle according to the timeout termination mode.

[0048] In practice, when the charging pile is in timeout mode, the charging pile will execute timeout mode, that is, if no VFR message is received within a preset time, the charging pile will time out and end charging.

[0049] Step S30: When the functional information type is the first information type, determine the charging pile operation mode as emergency mode; Understandably, the second information type refers to emergency mode information. By analyzing the VFR messages fed back by the vehicle, when emergency mode information is identified, the charging pile's operating mode is determined to be emergency mode information.

[0050] Step S40: Perform emergency charging of the vehicle according to the emergency mode.

[0051] In practice, when the charging pile is in emergency mode, the vehicle's VCU receives the battery pack power supply signal stored in the BMS. The VCU sends the closing command K5 and K6 to the BMS, and the BMS controls the contactors K5 and K6 to close. After receiving the information that K5 and K6 have been closed, the VCU sends the command to start the DC-DC booster function. The VCU will send the DC-DC booster mode start signal to the DC-DC to boost the auxiliary power supply 12V of the charging pile to the current battery voltage U1. At this time, the vehicle is connected to high voltage, and the charging pile switches to charging mode.

[0052] This embodiment sends a charging request to the vehicle when the vehicle's feedback information meets preset verification conditions; upon receiving the vehicle's request within a preset time period, it determines the corresponding function information type based on the request; if the function information type is a first information type, it determines the charging pile's operating mode as emergency mode; and performs emergency charging of the vehicle according to the emergency mode. The vehicle is awakened by the low-voltage auxiliary power supply of the charging pile, thereby completing the high-voltage connection, charging, and starting the vehicle, achieving vehicle startup even when the battery pack is depleted.

[0053] Based on the first embodiment of this application, in the second embodiment of this application, the content that is the same as or similar to that in Embodiment 1 above can be referred to the above description, and will not be repeated hereafter. Based on this, please refer to... Figure 3 The vehicle emergency charging method further includes steps S41-S42 in step S40: Step S41: Send the emergency mode to the vehicle so that the vehicle can obtain the battery pack power supply signal based on the mode operation information corresponding to the emergency mode, generate a contactor closing command according to the battery pack power supply signal, generate a corresponding boost function command according to the contactor closing command, and feed back high voltage power-on completion information. Understandably, the mode operation information refers to the operating mode information of the charging pile; the battery pack power supply signal refers to the battery pack status signal monitored by the battery pack management system (BMS), including but not limited to battery voltage, current, temperature, etc., which determines that the vehicle battery pack is in a power supply state; the contactor closing command refers to the command to control the contactor to close; the boost function command is used to instruct the on-board DC / DC converter to increase the input voltage to the specified output voltage; and the high voltage power-on completion information refers to the information sent by the vehicle control system (usually the vehicle control unit VCU) to other systems or components after the vehicle completes the power-on process of the high voltage system during the charging process of the electric vehicle, indicating that the high voltage system is ready and can start charging.

[0054] In practice, when the VCU receives the battery pack power supply signal stored in the BMS, the VCU sends the closing command K5 and K6 to the BMS. The BMS controls the contactors K5 and K6 to close. After receiving the information that K5 and K6 have been closed, the VCU sends the command to start the DC-DC booster function. The VCU will send the signal to start the DC-DC booster mode to the DC-DC, boosting the auxiliary power supply 12V of the charging pile to the current battery voltage U1. At this time, the high voltage is applied to the vehicle.

[0055] Step S42: Perform emergency charging of the vehicle based on the high-voltage power-on completion information.

[0056] It is understandable that the DC-DC booster mode signal refers to a command sent by the vehicle control unit (VCU) to the on-board DC / DC converter during the charging process of an electric vehicle, which is used to boost the lower voltage to a higher voltage to meet the voltage requirements of the vehicle's high-voltage system. When the vehicle has completed the connection to high voltage, the charging station switches from emergency mode to charging mode to realize emergency charging of the vehicle.

[0057] In one feasible implementation, step S42 may include steps A421-A422: Step A421: Switch the emergency mode to charging mode based on the high-voltage power-on completion information; Understandably, by using a low-voltage auxiliary power supply to boost a lower voltage to a higher voltage, and when the voltage requirements of the vehicle's high-voltage system are met, it indicates that the vehicle can be charged normally. This allows the charging station to switch to charging mode, enabling the vehicle to start even when the battery pack is depleted.

[0058] Step A422: Perform emergency charging of the vehicle according to the charging mode.

[0059] In practice, when the charging pile is in charging mode, it executes the charging process to provide emergency charging for the vehicle and then starts the vehicle.

[0060] This embodiment sends the emergency mode to the vehicle, enabling the vehicle to obtain a battery pack power supply signal based on the corresponding emergency mode operation information. Based on the battery pack power supply signal, it generates a contactor closing command and a corresponding boost function command, and feeds back high-voltage power-on completion information. Emergency charging of the vehicle is then performed based on this high-voltage power-on completion information. By sending a closing command to control the contactor to close when the vehicle receives the battery pack power supply signal, and sending a boost function start command after receiving the contactor closure completion information, the vehicle is connected to high voltage, and the charging station switches to charging mode. This enables vehicle startup even when the battery pack is depleted.

[0061] For example, to help understand the implementation process of the vehicle emergency charging method obtained by combining this embodiment with the above embodiment one, please refer to... Figure 4 , Figure 4 A simplified flowchart of a vehicle emergency charging method is provided. Specifically: when both the battery and the 12V storage battery are unusable, the signal is temporarily stored in the BMS. After the charging gun is connected, the charging station supplies power to A... + With A -The low-voltage auxiliary power supply wakes up the vehicle and then enters the protocol verification process: The charging pile first sends a handshake information message (CHR). After receiving the CHR, the vehicle immediately responds with vehicle information (VIR). After the protocol verification is successful, the function confirmation stage begins. The charging pile first sends a charging function request (CFR) to the vehicle. After receiving the charging function request, the vehicle selects the corresponding function based on the vehicle system self-test and sends a vehicle function feedback (VFR). Then, the data interaction stage begins, which can be referenced according to national standards. Finally, the charging pile selectively enters the corresponding function, such as charging or preheating, based on the vehicle function feedback.

[0062] It should be noted that the above examples are only for understanding this application and do not constitute a limitation on the vehicle emergency charging method of this application. Any simple modifications based on this technical concept are within the protection scope of this application.

[0063] This application also provides a vehicle emergency charging device; please refer to [reference needed]. Figure 5 The vehicle emergency charging device includes: The sending module 10 is used to send a request for charging function information to the vehicle when the vehicle feedback information meets the preset verification conditions; Processing module 20 is used to determine the corresponding function information type based on the vehicle-side request function information when it receives the vehicle-side request function information within a preset time period. The processing module 20 is also used to determine the charging pile operation mode as emergency mode when the functional information type is the first information type; The control module 30 is used to perform emergency charging of the vehicle according to the emergency mode.

[0064] Optionally, the sending module 10 is further configured to: When the charging plug is fully connected to the vehicle and a card swipe operation is detected, the vehicle is woken up by the auxiliary power supply and a handshake message is sent to the vehicle. Upon receiving vehicle feedback information sent by the vehicle based on the new handshake message, the vehicle feedback information is verified according to preset verification conditions.

[0065] Optionally, the processing module 20 is further configured to: When the functional information type is the second information type, the charging pile operation mode is determined to be the charging mode; Emergency charging of the vehicle is performed according to the described charging mode.

[0066] Optionally, the processing module 20 is further configured to: When the functional information type is the third information type, the charging pile operation mode is determined to be the preheating mode; Emergency charging of the vehicle is performed according to the preheating mode.

[0067] Optionally, the processing module 20 is further configured to: When the functional information type is the fourth information type, the charging pile operation mode is determined to be the timeout termination mode; Emergency charging of the vehicle is terminated according to the timeout termination mode.

[0068] Optionally, the control module 30 is further configured to: The emergency mode is sent to the vehicle so that the vehicle can obtain the battery pack power supply signal based on the mode operation information corresponding to the emergency mode, generate a contactor closing command according to the battery pack power supply signal, generate a corresponding boost function command according to the contactor closing command, and feed back high voltage power-on completion information. Emergency charging of the vehicle is performed based on the high-voltage power-on completion information.

[0069] Optionally, the control module 30 is further configured to: Based on the high-voltage power-on completion information, switch the emergency mode to the charging mode; Emergency charging of the vehicle is performed according to the described charging mode.

[0070] The vehicle emergency charging device provided in this application, employing the vehicle emergency charging method described in the above embodiments, can solve the technical problem of how to start a vehicle when the battery cannot discharge externally. Compared with the prior art, the beneficial effects of the vehicle emergency charging device provided in this application are the same as those of the vehicle emergency charging method provided in the above embodiments, and other technical features of the vehicle emergency charging device are the same as those disclosed in the methods of the above embodiments, and will not be repeated here.

[0071] This application provides a vehicle emergency charging device, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the vehicle emergency charging method in Embodiment 1 above.

[0072] The following is for reference. Figure 6The diagram illustrates a structural schematic suitable for implementing vehicle emergency charging devices according to embodiments of this application. Vehicle emergency charging devices in embodiments of this application may include, but are not limited to, mobile terminals such as mobile phones, laptops, digital radio receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Description), PMPs (Portable Media Players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. Figure 6 The vehicle emergency charging device shown is merely an example and should not impose any limitations on the functionality and scope of use of the embodiments of this application.

[0073] like Figure 6 As shown, the vehicle emergency charging device may include a processing unit 1001 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 1002 or a program loaded from a storage device 1003 into a random access memory (RAM) 1004. The RAM 1004 also stores various programs and data required for the operation of the vehicle emergency charging device. The processing unit 1001, ROM 1002, and RAM 1004 are interconnected via a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Typically, the following systems can be connected to the I / O interface 1006: input devices 1007 including, for example, a touchscreen, touchpad, keyboard, mouse, image sensor, microphone, accelerometer, gyroscope, etc.; output devices 1008 including, for example, a liquid crystal display (LCD), speaker, vibrator, etc.; storage devices 1003 including, for example, magnetic tape, hard disk, etc.; and communication devices 1009. The communication device 1009 allows the vehicle emergency charging equipment to communicate wirelessly or wiredly with other devices to exchange data. Although the figures show vehicle emergency charging equipment with various systems, it should be understood that implementation or possession of all the systems shown is not required. More or fewer systems may be implemented alternatively.

[0074] Specifically, according to the embodiments disclosed in this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments disclosed in this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication device, or installed from storage device 1003, or installed from ROM 1002. When the computer program is executed by processing device 1001, it performs the functions defined in the methods of the embodiments disclosed in this application.

[0075] The vehicle emergency charging device provided in this application, employing the vehicle emergency charging method described in the above embodiments, can solve the technical problem of how to start a vehicle when the battery cannot discharge externally. Compared with the prior art, the beneficial effects of the vehicle emergency charging device provided in this application are the same as those of the vehicle emergency charging method provided in the above embodiments, and other technical features of this vehicle emergency charging device are the same as those disclosed in the previous embodiment method, and will not be repeated here.

[0076] It should be understood that the various parts disclosed in this application can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0077] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0078] This application provides a computer-readable storage medium having computer-readable program instructions (i.e., a computer program) stored thereon, the computer-readable program instructions being used to execute the vehicle emergency charging method in the above embodiments.

[0079] The computer-readable storage medium provided in this application may be, for example, a USB flash drive, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, system, or device. The program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0080] The aforementioned computer-readable storage medium may be included in the vehicle emergency charging equipment; or it may exist independently and not be installed in the vehicle emergency charging equipment.

[0081] The aforementioned computer-readable storage medium carries one or more programs. When the aforementioned one or more programs are executed by the vehicle emergency charging device, the vehicle emergency charging device causes the following: when the vehicle feedback information meets preset verification conditions, it sends a request for charging function information to the vehicle; when it receives the vehicle-side request for function information within a preset time period, it determines the corresponding function information type based on the vehicle-side request for function information; when the function information type is a first information type, it determines the charging pile operation mode to be emergency mode; and performs emergency charging of the vehicle according to the emergency mode.

[0082] Computer program code for performing the operations of this application can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a Local Area Network (LAN) or a Wide Area Network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0083] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0084] The modules described in the embodiments of this application can be implemented in software or hardware. The names of the modules do not necessarily limit the functionality of the unit itself.

[0085] The readable storage medium provided in this application is a computer-readable storage medium that stores computer-readable program instructions (i.e., a computer program) for executing the above-described vehicle emergency charging method, which can solve the technical problem of how to start a vehicle when the battery cannot discharge externally. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in this application are the same as the beneficial effects of the vehicle emergency charging method provided in the above embodiments, and will not be repeated here.

[0086] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the vehicle emergency charging method described above.

[0087] The computer program product provided in this application solves the technical problem of how to start a vehicle when the battery cannot discharge externally. Compared with the prior art, the beneficial effects of the computer program product provided in this application are the same as those of the vehicle emergency charging method provided in the above embodiments, and will not be repeated here.

[0088] The above description is only a part of the embodiments of this application and does not limit the patent scope of this application. All equivalent structural transformations made under the technical concept of this application and using the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included in the patent protection scope of this application.

Claims

1. A method for emergency charging of a vehicle, characterized in that, In the charging circuit, the positive and negative terminals of the vehicle's battery pack are connected to the charging pile via contactors K5 and K6, respectively. The auxiliary power supply of the charging pile is connected to the vehicle's DC-DC converter, which is connected to the charging circuit. The vehicle emergency charging method includes: When the vehicle feedback information meets the preset verification conditions, a request for charging function information is sent to the vehicle; When the vehicle-side request function information is received from the vehicle within a preset time period, the corresponding function information type is determined according to the vehicle-side request function information. When the functional information type is the first information type, the charging pile operation mode is determined to be the emergency mode; Emergency charging of the vehicle is performed according to the emergency mode. When the charging pile is in emergency mode, the vehicle VCU receives the battery pack power supply signal stored in the BMS. The VCU sends the closing command K5 and K6 to the BMS. The BMS controls the contactors K5 and K6 to close. After receiving the information that K5 and K6 have been closed, the VCU sends the command to start the DC-DC boost function. The VCU will send the DC-DC booster mode start signal to the DC-DC to boost the auxiliary power supply 12V of the charging pile to the current battery voltage U1. At this time, the vehicle is connected to high voltage and the charging pile switches to charging mode. The emergency charging of the vehicle according to the emergency mode includes: The emergency mode is sent to the vehicle so that the vehicle can obtain the battery pack power supply signal based on the mode operation information corresponding to the emergency mode, generate a contactor closing command according to the battery pack power supply signal, generate a corresponding boost function command according to the contactor closing command, and feed back high voltage power-on completion information. Emergency charging of the vehicle is performed based on the high-voltage power-on completion information; The emergency charging of the vehicle based on the power-on completion information includes: Based on the high-voltage power-on completion information, switch the emergency mode to the charging mode; Emergency charging of the vehicle is performed according to the described charging mode.

2. The method as described in claim 1, characterized in that, Before sending the charging request information to the vehicle when the vehicle feedback information meets the preset verification conditions, the method further includes: When the charging plug is fully connected to the vehicle and a card swipe operation is detected, the vehicle is woken up by the auxiliary power supply and a handshake message is sent to the vehicle. Upon receiving vehicle feedback information sent by the vehicle based on the handshake information, the vehicle feedback information is verified according to preset verification conditions.

3. The method as described in claim 1, characterized in that, When the vehicle-side request function information is received from the vehicle within a preset time period, after determining the corresponding function information type based on the vehicle-side request function information, the process further includes: When the functional information type is the second information type, the charging pile operation mode is determined to be the charging mode; Emergency charging of the vehicle is performed according to the described charging mode.

4. The method as described in claim 1, characterized in that, When the vehicle-side request function information is received from the vehicle within a preset time period, after determining the corresponding function information type based on the vehicle-side request function information, the process further includes: When the functional information type is the third information type, the charging pile operation mode is determined to be the preheating mode; Emergency charging of the vehicle is performed according to the preheating mode.

5. The method as described in claim 1, characterized in that, When the vehicle-side request function information is received from the vehicle within a preset time period, after determining the corresponding function information type based on the vehicle-side request function information, the process further includes: When the functional information type is the fourth information type, the charging pile operation mode is determined to be the timeout termination mode; Emergency charging of the vehicle is terminated according to the timeout termination mode.

6. A vehicle emergency charging device, characterized in that, In the charging circuit, the positive and negative terminals of the vehicle's battery pack are connected to the charging pile via contactors K5 and K6, respectively. The auxiliary power supply of the charging pile is connected to the DC-DC converter inside the vehicle, which is connected to the charging circuit. The device includes: The sending module is used to send a request for charging function information to the vehicle when the vehicle feedback information meets the preset verification conditions; The processing module is used to determine the corresponding function information type based on the vehicle-side request function information when it receives the vehicle-side request function information within a preset time period. The processing module is also used to determine the charging pile operation mode as emergency mode when the functional information type is the first information type; The control module is used to perform emergency charging of the vehicle according to the emergency mode. When the charging pile is in emergency mode, the vehicle VCU receives the battery pack power supply signal stored in the BMS. The VCU sends the closing command K5 and K6 to the BMS. The BMS controls the contactors K5 and K6 to close. After receiving the information that K5 and K6 have been closed, the VCU sends the command to start the DC-DC booster function. The VCU will send the signal to start the DC-DC booster mode to the DC-DC to boost the auxiliary power supply 12V of the charging pile to the current battery voltage U1. At this time, the vehicle is connected to high voltage and the charging pile switches to charging mode. The control module is used to send the emergency mode to the vehicle so that the vehicle can obtain the battery pack power supply signal based on the mode operation information corresponding to the emergency mode, generate a contactor closing command according to the battery pack power supply signal, generate a corresponding boost function command according to the contactor closing command, and feed back high voltage power-on completion information. Emergency charging of the vehicle is performed based on the high-voltage power-on completion information; A control module, used for emergency charging of the vehicle based on the power-on completion information, includes: Based on the high-voltage power-on completion information, switch the emergency mode to the charging mode; Emergency charging of the vehicle is performed according to the described charging mode.

7. A vehicle emergency charging device, characterized in that, The device includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the vehicle emergency charging method as described in any one of claims 1 to 5.

8. A storage medium, characterized in that, The storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, it implements the steps of the vehicle emergency charging method as described in any one of claims 1 to 5.

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