Charging interface security control method and device, equipment and storage medium

Abstract

The application discloses a charging interface safety control method and device, equipment and storage medium, relates to the technical field of vehicle-mounted charging, and is applied to a charging cabin. The charging cabin comprises a charging interface and an electronic locking device. The method comprises the following steps: when a cabin door unlocking request of the charging cabin is received, the state information of a relay device of the charging interface is collected; whether the relay device is in a sticking state is judged according to the state information; and when the relay device is in the sticking state, the electronic locking device is controlled to keep a safe locking state. Since the charging interface is arranged in the charging cabin, the charging cabin is provided with the electronic locking device, the sticking state of the relay device can be judged when the cabin door unlocking request is received, the charging cabin can be prohibited from being opened through the electronic locking device if there is a sticking fault, the situation that the safety risk of electric shock exists after the relay device is stuck can be avoided, direct contact of a person with high-voltage electricity is prevented, and therefore, the safety of direct-current charging of a new energy automobile is improved.

Description

Technical Field

[0001] This application relates to the field of vehicle charging technology, and in particular to a charging interface safety control method, device, equipment and storage medium. Background Technology

[0002] With the increasing popularity of new energy vehicles, their charging technology is becoming increasingly important. New energy vehicles generally have two charging modes: DC charging and AC charging, i.e., fast charging and slow charging. However, in the current design of DC charging interfaces for new energy vehicles, the dimensions of the high-voltage positive and negative terminals of the vehicle's DC charging socket are typically Ф12.2 (0, +0.2) mm. If a person touches the positive or negative terminal of the charging port with their finger, they may come into contact with the high-voltage conductive terminals of the charging interface. Furthermore, if the vehicle's charging interface can still receive high voltage even after a relay has stuck, touching the vehicle's DC socket could directly expose the vehicle's power battery, posing a risk of electric shock. Summary of the Invention

[0003] The main objective of this application is to provide a charging interface safety control method, device, equipment, and storage medium, aiming to solve the technical problem that if a vehicle charging interface can normally receive high voltage after a relay sticking, and a person touches the vehicle's DC socket, they can directly touch the vehicle's power battery, posing a high voltage safety risk of electric shock.

[0004] To achieve the above objectives, this application proposes a charging interface safety control method, which is applied to a charging compartment. The charging compartment includes a charging interface and an electronic locking device. The method includes:

[0005] Upon receiving a request to unlock the charging compartment door, the status information of the relay device of the charging interface is collected based on the request.

[0006] Determine whether the relay device is in a stuck state based on the status information;

[0007] When the relay device is in a stuck state, the electronic locking device is controlled to maintain a safe locking state.

[0008] In one embodiment, the status information includes the front-end voltage and the rear-end voltage of the relay device, and the step of determining whether the relay device is in a stuck state based on the status information includes:

[0009] Collect the battery system voltage of the charging compartment;

[0010] The voltage difference of the relay device is obtained by comparing the front-end voltage and the rear-end voltage.

[0011] The relay device is determined to be stuck based on the voltage difference and the battery system voltage.

[0012] In one embodiment, the step of determining whether the relay device is in a stuck state based on the voltage difference and the battery system voltage includes:

[0013] If the front-end voltage is equal to the battery system voltage and the rear-end voltage is zero volts, then the relay device is determined to be in normal condition.

[0014] If the front-end voltage is equal to the battery system voltage, and the rear-end voltage is equal to the front-end voltage, then the relay device is determined to be in a stuck state.

[0015] In one embodiment, the electronic locking device includes a DC motor and an electronic locking device actuator, the charging compartment further includes a charging compartment door, the electronic locking device actuator is connected to the charging compartment door, and after the step of determining whether the relay device is in a stuck state based on the status information, the method further includes:

[0016] When the relay device is not in a stuck state, an unlocking command corresponding to the hatch unlocking request is generated;

[0017] The unlocking command is sent to the DC motor, so that the DC motor drives the electronic locking device actuator to open the charging compartment door according to the unlocking command.

[0018] In one embodiment, the charging compartment further includes a microswitch sensor, and after sending the unlock command to the DC motor, it further includes:

[0019] After charging is complete, a charging end command is generated;

[0020] The opening and closing status of the charging compartment door is detected according to the charging end command, and the opening and closing status is obtained by the micro switch sensor.

[0021] If the opening / closing state is closed, then the electronic locking device is controlled to lock the charging compartment door.

[0022] In one embodiment, the step of controlling the electronic locking device to maintain a safe locking state when the relay device is in an stuck state includes:

[0023] When the relay device is in a stuck state, a stuck alarm command is generated;

[0024] The user is alerted according to the adhesion alarm command, and the electronic locking device is controlled to maintain a safe locking state.

[0025] Furthermore, to achieve the above objectives, this application also proposes a charging interface safety control device, which is applied to a charging compartment. The charging compartment includes a charging interface and an electronic locking device. The charging interface safety control device includes:

[0026] The status acquisition module is used to acquire the status information of the relay device of the charging interface according to the door unlocking request when the door unlocking request of the charging compartment is received.

[0027] An adhesion detection module is used to determine whether the relay device is in an adhesion state based on the status information.

[0028] The safety control module is used to control the electronic locking device to maintain a safe locking state when the relay device is in a stuck state.

[0029] In addition, to achieve the above objectives, this application also proposes a charging interface safety control 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 charging interface safety control method described above.

[0030] 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 charging interface safety control method described above.

[0031] 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 charging interface safety control method described above.

[0032] One or more technical solutions proposed in this application have at least the following technical effects: This application proposes a charging interface safety control method, which is applied to a charging compartment. The charging compartment includes a charging interface and an electronic locking device. When a door unlocking request is received from the charging compartment, the status information of the relay device of the charging interface is collected according to the door unlocking request; the status information is used to determine whether the relay device is in a stuck state; when the relay device is in a stuck state, the electronic locking device is controlled to maintain a safe locking state. Since this application places the charging interface inside the charging compartment, and the charging compartment is equipped with an electronic locking device, when a door unlocking request is received, the stuck state of the relay device can be determined. If a stuck fault exists, the electronic locking device can prevent the opening of the charging compartment, thus avoiding the risk of electric shock due to the stuck relay device and preventing personnel from directly contacting high voltage electricity, thereby improving the safety of DC charging of new energy vehicles. Attached Figure Description

[0033] 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.

[0034] 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.

[0035] Figure 1 Design diagram for high-voltage circuit charging of new energy vehicles;

[0036] Figure 2 This is a flowchart illustrating an embodiment of the charging interface safety control method of this application.

[0037] Figure 3 An interactive diagram of high-voltage safety protection provided in Embodiment 1 of this application;

[0038] Figure 4 This is a flowchart illustrating Embodiment 2 of the charging interface safety control method of this application.

[0039] Figure 5 This is a structural diagram of the relay device adhesion detection provided in Embodiment 2 of this application;

[0040] Figure 6 This is a schematic diagram of the charging compartment structure provided in Embodiment 2 of this application;

[0041] Figure 7 This is a schematic diagram of the charging interface safety protection control strategy provided in Embodiment 2 of this application;

[0042] Figure 8 This is a schematic diagram of the module structure of the charging interface safety control device according to an embodiment of this application;

[0043] Figure 9 This is a schematic diagram of the device structure of the hardware operating environment involved in the charging interface safety control method in the embodiments of this application.

[0044] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0045] 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.

[0046] 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.

[0047] It should be noted that the DC charging circuit containing the vehicle's DC charging interface is generally designed with a fast charging relay device, see reference. Figure 1 , Figure 1 This diagram illustrates the high-voltage charging circuit design for new energy vehicles. The power battery is connected to both the main positive and negative relays. The two ends of the main positive relay are connected to the pre-charge resistor and the pre-charge relay, respectively. The high-voltage control system is also connected to both the main positive and negative relays. The DC charging socket is connected to both the positive and negative relays. Under normal circumstances, when the vehicle is not charging, the relays are in the open state, ensuring that the connection between the power battery and the DC charging interface remains disconnected during normal vehicle use. If, due to an abnormal situation, the fast-charging relay becomes stuck, and the vehicle is reconnected to high voltage, the fast-charging port will be directly connected to the power battery, posing a high-voltage safety risk of electric shock.

[0048] When a fast-charging relay malfunctions and sticks, there are generally two scenarios: the vehicle can normally connect to high voltage, or the vehicle is prohibited from connecting to high voltage. If the vehicle can normally connect to high voltage, there is a risk of electric shock if someone touches the vehicle's DC connector. If the vehicle is prohibited from connecting to high voltage, it will cause the vehicle to break down, and the customer will need to contact a tow truck to transport the vehicle to a repair shop.

[0049] To address the aforementioned issues, this application proposes a high-voltage safety protection scheme for the DC charging interface of new energy vehicles. In this scheme, the DC charging interface is located inside the charging compartment, and the charging compartment door is equipped with an electronic locking device. When a customer attempts to unlock the charging compartment door, the vehicle control system determines the sticking status of the fast-charging relay. If a fast-charging relay sticking fault is detected, opening the charging compartment door is prohibited, and a fault warning is issued to the customer via the human-machine interface. This effectively prevents the risk of electric shock or breakdown in new energy vehicles caused by fast-charging relay sticking.

[0050] It should be noted that the executing entity in this embodiment can be a computing service device with information collection, fault diagnosis, and safety control functions, such as a personal computer, an in-vehicle computer, or a vehicle control system, or an electronic device capable of performing the above functions, or a charging interface safety control device (hereinafter referred to as the control device) executing the charging interface safety control method of this application, etc. This embodiment does not limit this. The following uses the control device as an example to describe this embodiment and the following embodiments.

[0051] Based on this, embodiments of this application provide a charging interface safety control method, referring to... Figure 2 , Figure 2This is a flowchart illustrating an embodiment of the charging interface safety control method of this application.

[0052] In this embodiment, the charging interface safety control method is applied to a charging compartment, which includes a charging interface and an electronic locking device. The charging interface safety control method includes steps S10 to S20:

[0053] Step S10: Upon receiving a request to unlock the charging compartment door, collect the status information of the relay device of the charging interface according to the request.

[0054] It should be noted that the charging compartment is a device used to store and protect the charging port. It contains an electronic locking mechanism, the charging port, and a motor. When the charging port is placed inside the charging compartment, the risk of electric shock during charging is avoided.

[0055] It should be noted that the charging interface is a connection port used to connect the power battery and the device that needs to be charged (i.e., the vehicle) to realize the transfer of electrical energy and allow the vehicle to be charged.

[0056] For example, the charging interface may include a DC charging interface and an AC charging interface. This embodiment takes a DC charging interface as an example, but it does not limit the solution.

[0057] It should be noted that the electronic locking device is a device that uses electronic control to lock the charging compartment. The opening and closing of the charging compartment can be controlled via electronic signals to ensure charging safety.

[0058] It should be noted that the hatch unlock request is an application or signal to open the charging compartment door.

[0059] For example, the door unlocking request can be made through the unlocking button or switch of the charging compartment, the unlocking option on the vehicle's central control screen, or the remote unlocking control command of a mobile phone. This embodiment does not limit this.

[0060] It should be noted that a relay device is a type of switch control element, an automatic switch that uses a small current to control a large current operation.

[0061] It should be noted that the status information is related to the current working status of the relay device, such as whether it is in a closed or open state, whether there is a fault, and whether the operation is normal.

[0062] In one implementation, when a user needs to charge, they can unlock the charging compartment door. When the control device receives the door unlocking request for the charging compartment, it can collect the status information of the relay device in the charging circuit where the charging interface is located.

[0063] Step S20: Determine whether the relay device is in a stuck state based on the status information.

[0064] It should be noted that the sticking state is when the contacts of the relay device fail to open normally when they should, due to some reason (such as contact erosion, impurities, etc.), and remain in a closed state, as if they are stuck together.

[0065] This sticking condition can cause malfunctions in the DC charging interface, preventing charging and potentially even leading to electric shock. Therefore, detecting and determining whether the relay device is stuck can help identify and address the issue promptly, avoiding the risk of electric shock.

[0066] Step S30: When the relay device is in an stuck state, control the electronic locking device to maintain a safe locking state.

[0067] It should be noted that the safety lock state is a state in which the electronic locking device remains locked to prevent unauthorized operation of the charging compartment and ensure that it cannot be opened at will. The lock state will only be released when the relay device is working properly and there is no risk of electric shock.

[0068] In this embodiment, when a user needs to charge, they can unlock the charging compartment door. Upon receiving the door unlock request, the control device collects the status information of the relay device in the charging circuit where the charging interface is located. Then, based on the status information, it determines whether the relay device is stuck, for example, due to contact erosion or impurities. If the relay device is functioning normally, there is no risk of electric shock, the lock is released, and the charging compartment door is opened for user charging. If the relay device is stuck, the electronic locking device is controlled to maintain a safe locked state. This prevents personnel from directly contacting the high-voltage electricity at the charging interface, avoiding the risk of electric shock.

[0069] In one feasible implementation, step S30 of this embodiment may include the steps of: generating an adhesion alarm command when the relay device is in an adhesion state; alarming the user according to the adhesion alarm command; and controlling the electronic locking device to maintain a safe locking state.

[0070] It should be noted that the adhesion alarm command is an alarm indication signal issued when an abnormal adhesion state is detected in the relay device.

[0071] For example, the alarm can be implemented by a pop-up reminder on the vehicle's instrument panel or display screen, the power level of the fault alarm light at the charging compartment door, or by remotely sending alarm information to the user's mobile phone. This example does not limit this.

[0072] In this embodiment, for ease of understanding, please refer to Figure 3 , Figure 3This is an interactive diagram of the high-voltage safety protection provided in Embodiment 1 of this application. The charging compartment is equipped with a charging interface and an electronic locking device. The power battery is connected to the charging compartment to charge the vehicle. The vehicle control system is connected to both the charging compartment and the power battery. The vehicle control system is also connected to a Human-Machine Interface (HMI) and sends control signals to the electronic locking device based on the relay sticking status and the charging compartment door to control the opening and closing of the charging compartment. When the relay sticks, a sticking alarm command is sent to the HMI to alert the user.

[0073] This embodiment provides a safety control method for a charging interface. When a user needs to charge, they can unlock the charging compartment door. Upon receiving a door unlocking request, the control device collects the status information of the relay device in the charging circuit where the charging interface is located. Then, based on the status information, it determines whether the relay device is stuck, for example, due to contact erosion or impurities. If the relay device is working normally, there is no risk of electric shock, the lock is released, and the charging compartment door is opened for user charging. If the relay device is stuck, the electronic locking device is controlled to maintain a safe lock. This prevents personnel from directly contacting the high-voltage electricity of the charging interface, avoiding the risk of electric shock. Because this embodiment places the charging interface inside the charging compartment, and the charging compartment has an electronic locking device, when a door unlocking request is received, the sticking status of the relay device can be determined. If a sticking fault exists, the electronic locking device can prevent the charging compartment from opening, avoiding the safety risk of electric shock due to a stuck relay device and preventing personnel from directly contacting high-voltage electricity, thereby improving the safety of DC charging for new energy vehicles.

[0074] 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 the first embodiment described above can be referred to the above description, and will not be repeated hereafter. Based on this, please refer to... Figure 2 and Figure 4 , Figure 4 This is a flowchart illustrating Embodiment 2 of the charging interface safety control method of this application.

[0075] The status information includes the front-end voltage and the rear-end voltage of the relay device. In this example, step S20 includes steps S21 to S23:

[0076] Step S21: Collect the battery system voltage of the charging compartment.

[0077] It should be noted that the battery system voltage is the voltage value of the power battery connected to the charging interface inside the charging compartment.

[0078] Step S22: Compare the front-end voltage and the back-end voltage to obtain the voltage difference of the relay device.

[0079] It should be noted that the front-end voltage is the voltage input to the relay device. The back-end voltage is the voltage measured at the output terminal of the relay device after it has been activated.

[0080] It should be noted that the voltage difference is the difference between the front-end voltage and the back-end voltage. The voltage difference can be used to determine whether the relay device is stuck.

[0081] Step S23: Determine whether the relay device is stuck based on the voltage difference and the battery system voltage.

[0082] In this embodiment, the control device can collect the battery system voltage of the charging compartment; then compare the front-end voltage and the rear-end voltage to obtain the voltage difference of the relay device; finally, based on the voltage difference and the battery system voltage, it is determined whether the relay device is stuck. If the relay device is normal, the voltage difference is the battery system voltage when the relay is open; if the relay device is stuck, the voltage difference is 0 when the relay is open. Thus, the sticking status of the relay device can be quickly determined by the value of the voltage difference.

[0083] In one feasible implementation, step S23 of this embodiment may include the following steps: if the front-end voltage is equal to the battery system voltage and the rear-end voltage is zero volts, then the relay device is determined to be in a normal state; if the front-end voltage is equal to the battery system voltage and the rear-end voltage is equal to the front-end voltage, then the relay device is determined to be in a stuck state.

[0084] In this embodiment, for ease of understanding, please refer to Figure 5 , Figure 5 This is a structural diagram of the relay device adhesion detection provided in Embodiment 2 of this application. Figure 3 and Figure 5 The power battery is connected to the main positive relay (K1) and the main negative relay (K2) respectively. One end of the main positive relay is connected to the positive relay (K4), and one end of the main negative relay is connected to the negative relay (K5) to control the operation of the charging interface. Figure 5As shown, the front and back ends of the relay can be connected through the Battery Management System (BMS) inside the power battery to detect whether the relay is stuck and send status signals in real time. At this time, the voltage at the back end of the relay can be compared with the voltage at the front end to determine whether the relay is stuck. For example, when the vehicle is in a high-voltage state and not charging, the main positive relay (K1) and main negative relay (K2) are in the closed state. At this time, the voltage at the front end of the relay, U1, is equal to the battery system voltage. Simultaneously, because the BMS does not control the relays to work, the positive relay (K4) and negative relay (K5) are in the open state. At this time, the voltage at the back end of the relay, U2, should be 0V. If, under these conditions, the BMS detects that U2 and U1 are equal, it indicates that the fast-charging relay has a stuck fault. Therefore, the stuck state of the relay device can be quickly determined through voltage detection by the battery management system.

[0085] In another feasible implementation, the electronic locking device of this embodiment includes a DC motor and an electronic locking device actuator. The charging compartment also includes a charging compartment door. The electronic locking device actuator is connected to the charging compartment door. After step S20, the following steps may be included: when the relay device is not in a stuck state, generating an unlocking command corresponding to the door unlocking request; sending the unlocking command to the DC motor so that the DC motor drives the electronic locking device actuator to open the charging compartment door according to the unlocking command.

[0086] It should be noted that the actuator of the electronic locking device is the key control component of the electronic locking device. Its function is to perform the action of locking or unlocking the charging compartment door. The mechanical structure of the actuator is driven by a DC motor to complete the actual locking or unlocking action.

[0087] It should be noted that the unlock command is for unlocking the charging case.

[0088] In this embodiment, for ease of understanding, please refer to Figure 6 , Figure 6 This is a schematic diagram of the charging compartment structure provided in Embodiment 2 of this application. The DC charging interface is located inside the charging compartment, which has an electronic locking device for locking or unlocking the charging compartment door. This electronic locking device is controlled by the vehicle control system. The electronic locking device contains a low-voltage DC motor. When a positive voltage is applied externally, the motor rotates forward and drives the electronic locking device actuator through a gear structure to lock the compartment. When a reverse voltage is applied externally, the motor rotates backward and drives the electronic locking device actuator through the gear structure to unlock the compartment. The electronic locking device actuator ensures the opening and closing of the charging compartment.

[0089] In another feasible implementation, the charging compartment further includes a micro switch sensor. After sending the unlocking command to the DC motor as described in this embodiment, the method further includes: generating a charging end command after charging is completed; detecting the opening and closing state of the charging compartment door according to the charging end command, wherein the opening and closing state is obtained by the micro switch sensor; and controlling the electronic locking device to lock the charging compartment door if the opening and closing state is closed.

[0090] It should be noted that a microswitch sensor is a sensor capable of sensing tiny, rapidly moving mechanisms. The microswitch sensor converts mechanical motion into electrical signals, which are then used to detect the position of the charging compartment door.

[0091] It should be noted that the charging end command is generated when the charging interface is disconnected from the power battery or when the vehicle is fully charged.

[0092] In this embodiment, the electronic locking device also includes a position detection function for the charging compartment door, and contains a microswitch sensor that indicates the opening and closing status. When the charging compartment door is closed, the door presses against the actuator of the electronic locking device, causing the internal microswitch to close, indicating that the door is currently closed. When the charging compartment door is opened, the microswitch opens, indicating that the door is currently open. Therefore, after charging is completed, the control device can generate a charging end command and detect the opening and closing status of the charging compartment door through the microswitch sensor. If the opening and closing status is closed, the electronic locking device is controlled to lock the charging compartment door. This ensures that the charging compartment remains closed when not in use to prevent electric shock accidents.

[0093] In this embodiment, when the vehicle relay sticks, the vehicle charging compartment door remains closed and a fault alarm is triggered, which can prevent personnel from directly contacting high voltage electricity; or prevent the vehicle from breaking down due to relay sticking. After the relay sticks, the customer can also drive to a repair shop for repairs, which can effectively prevent the risk of high voltage electric shock caused by relay sticking.

[0094] For example, to help understand the implementation flow of the charging interface safety control method obtained by combining Embodiment 1 and Embodiment 2 above, please refer to... Figure 3 and Figure 7 , Figure 7 This is a schematic diagram of the charging interface safety protection control strategy provided in Embodiment 2 of this application; specifically:

[0095] 1. Before charging begins, a door unlocking request must be detected. First, the system detects the user's request to unlock the charging compartment door and sends an unlocking request signal. This can be achieved through: an unlock button or switch, an unlocking option on the vehicle's central control screen, or a remote unlocking control command from a mobile phone. For example, when a user wants to charge, they first click the charging compartment door unlock icon on the central control screen. After detecting this request, the central control screen converts the user's request into a CAN signal and sends it to the vehicle control system.

[0096] 2. Next, determine if the relay is stuck. After receiving the charging compartment unlocking request from the HMI, the vehicle control system receives the relay status signal from the battery management system (BMS) inside the power battery system, judges the signal status, and controls the electronic locking device in conjunction with the status of the door.

[0097] 3. If the relay is not stuck, the vehicle control system can control the electronic locking device of the charging compartment to unlock the compartment door, and determine whether the compartment door is closed after charging is completed. After the charging compartment door is closed, control the electronic locking device to lock it again.

[0098] 4. If the fast charging relay experiences a sticking fault, the vehicle control system should keep the electronic locking device locked and send a relay sticking alarm signal. The user should be alerted via: a pop-up notification on the instrument panel or display screen, a fault warning light at the charging compartment door, or by remotely sending an alarm message to the user's mobile phone. Finally, the safety control process for the charging interface should end.

[0099] It should be noted that the above examples are only for understanding this application and do not constitute a limitation on the charging interface safety control method of this application. Any simple modifications based on this technical concept are within the protection scope of this application.

[0100] This application also provides a charging interface safety control device, please refer to... Figure 8 , Figure 8 This is a schematic diagram of the module structure of the charging interface safety control device according to an embodiment of this application; the charging interface safety control device is applied to the charging compartment, the charging compartment includes a charging interface and an electronic locking device, and the charging interface safety control device includes:

[0101] The status acquisition module 801 is used to acquire the status information of the relay device of the charging interface according to the door unlocking request when the door unlocking request of the charging compartment is received.

[0102] Adhesion detection module 802 is used to determine whether the relay device is in an adhesive state based on the status information;

[0103] The safety control module 803 is used to control the electronic locking device to maintain a safe locking state when the relay device is in an adhesive state.

[0104] The charging interface safety control device provided in this application, employing the charging interface safety control method described in the above embodiments, can solve the technical problem that if a vehicle charging interface can still receive high voltage after a relay sticking, and a person touches the vehicle's DC socket, they could directly touch the vehicle's power battery, posing a high-voltage safety risk of electric shock. Compared with the prior art, the beneficial effects of the charging interface safety control device provided in this application are the same as those of the charging interface safety control method provided in the above embodiments, and other technical features in the charging interface safety control device are the same as those disclosed in the methods of the above embodiments, and will not be repeated here.

[0105] This application provides a charging interface safety control 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 charging interface safety control method in the above embodiment 1.

[0106] The following is for reference. Figure 9 , Figure 9 This is a schematic diagram of the hardware operating environment involved in the charging interface safety control method in the embodiments of this application, showing a structural diagram of a charging interface safety control device suitable for implementing the embodiments of this application. The charging interface safety control device in the embodiments of this application may include, but is not limited to, mobile terminals such as mobile phones, laptops, digital broadcast 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 9 The charging interface safety control 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.

[0107] like Figure 9As shown, the charging interface safety control 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 charging interface safety control 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 charging interface safety control device to communicate wirelessly or wiredly with other devices to exchange data. Although the figures show charging interface safety control devices 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.

[0108] 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.

[0109] The charging interface safety control device provided in this application, employing the charging interface safety control method described in the above embodiments, can solve the technical problem that if a vehicle charging interface can still receive high voltage after a relay sticking, and a person touches the vehicle's DC socket, they could directly touch the vehicle's power battery, posing a high-voltage safety risk of electric shock. Compared with the prior art, the beneficial effects of the charging interface safety control device provided in this application are the same as those of the charging interface safety control method provided in the above embodiments, and other technical features of this charging interface safety control device are the same as those disclosed in the previous embodiment method, and will not be repeated here.

[0110] 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.

[0111] 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.

[0112] 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 charging interface safety control method in the above embodiments.

[0113] 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.

[0114] The aforementioned computer-readable storage medium may be included in the charging interface safety control device; or it may exist independently and not assembled into the charging interface safety control device.

[0115] The aforementioned computer-readable storage medium carries one or more programs. When the aforementioned one or more programs are executed by the charging interface safety control device, the charging interface safety control device: upon receiving a request to unlock the charging compartment door, collects the status information of the relay device of the charging interface according to the door unlocking request; determines whether the relay device is in a stuck state according to the status information; and controls the electronic locking device to maintain a safe locking state when the relay device is in a stuck state.

[0116] 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).

[0117] 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.

[0118] 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.

[0119] 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 charging interface safety control method. This addresses the technical problem that if a vehicle's charging interface can still receive high voltage after a relay sticking, and a person touches the vehicle's DC socket, they could directly contact the vehicle's power battery, posing a high-voltage safety risk of electric shock. Compared to the prior art, the beneficial effects of the computer-readable storage medium provided in this application are the same as those of the charging interface safety control method provided in the above embodiments, and will not be elaborated upon here.

[0120] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the charging interface safety control method described above.

[0121] The computer program product provided in this application solves the technical problem that if a vehicle charging interface can still receive high voltage after a relay sticking, and a person touches the vehicle's DC socket, they could directly touch the vehicle's power battery, posing a high-voltage safety risk of electric shock. Compared with the prior art, the beneficial effects of the computer program product provided in this application are the same as those of the charging interface safety control method provided in the above embodiments, and will not be repeated here.

[0122] 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 charging interface safety control method, characterized in that, The charging interface safety control method is applied to a charging compartment, which includes a charging interface and an electronic locking device. The electronic locking device includes a DC motor and an electronic locking device actuator. The charging compartment also includes a charging compartment door. The electronic locking device actuator is connected to the charging compartment door and is used to lock or unlock the charging compartment door. The electronic locking device contains a low-voltage DC motor. When a positive voltage is provided externally, the low-voltage DC motor rotates forward and drives the electronic locking device actuator through a gear structure to lock the device. When a reverse voltage is provided externally, the low-voltage DC motor rotates in reverse and drives the electronic locking device actuator through a gear structure to unlock the device. The electronic locking device is controlled by the vehicle control system; the method includes: Upon receiving a request to unlock the charging compartment door, the status information of the relay device of the charging interface is collected based on the request. Determine whether the relay device is in a stuck state based on the status information; When the relay device is in an adhered state, the electronic locking device is controlled to maintain a safe locking state; The method further includes, after the step of determining whether the relay device is in an adhesive state based on the status information, generating an unlocking command corresponding to the door unlocking request when the relay device is not in an adhesive state; and sending the unlocking command to the DC motor so that the DC motor drives the electronic locking device actuator to open the charging compartment door according to the unlocking command. The power battery is connected to a main positive relay and a main negative relay, respectively. One end of the main positive relay is connected to the positive terminal relay, and one end of the main negative relay is connected to the negative terminal relay. The status information includes the front-end voltage and the rear-end voltage of the relay device. The step of determining whether the relay device is in a stuck state based on the status information includes: collecting the battery system voltage of the charging compartment; comparing the front-end voltage and the rear-end voltage to obtain the voltage difference of the relay device; if the front-end voltage is equal to the battery system voltage and the rear-end voltage is zero volts, it is determined that the positive and negative relays are in an open state, and the relay device is in a normal state; if the front-end voltage is equal to the battery system voltage and the rear-end voltage is equal to the front-end voltage, it is determined that the relay device is in a stuck state. The charging compartment further includes a microswitch sensor. After sending the unlock command to the DC motor, the process further includes: generating a charging end command after charging is completed; detecting the opening and closing state of the charging compartment door according to the charging end command, wherein the opening and closing state is obtained by the microswitch sensor; wherein when the charging compartment door is closed, the charging compartment door presses the actuator of the electronic locking device, causing the internal microswitch to close to indicate that the charging compartment door is in the closed state; when the charging compartment door is open, it causes the internal microswitch to open to indicate that the charging compartment door is in the open state; if the opening and closing state is the closed state, the electronic locking device is controlled to lock the charging compartment door.

2. The method as described in claim 1, characterized in that, The step of controlling the electronic locking device to maintain a safe locking state when the relay device is in an adhesive state includes: When the relay device is in a stuck state, a stuck alarm command is generated; The user is alerted according to the adhesion alarm command, and the electronic locking device is controlled to maintain a safe locking state.

3. A charging interface safety control device, characterized in that, The charging interface safety control device implements the charging interface safety control method as described in claim 1. The charging interface safety control device is applied to the charging compartment, which includes a charging interface and an electronic locking device. The charging interface safety control device includes: The status acquisition module is used to acquire the status information of the relay device of the charging interface according to the door unlocking request when the door unlocking request of the charging compartment is received. An adhesion detection module is used to determine whether the relay device is in an adhesion state based on the status information. The safety control module is used to control the electronic locking device to maintain a safe locking state when the relay device is in a stuck state.

4. A charging interface safety control 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 charging interface safety control method as described in any one of claims 1 to 2.

5. 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 charging interface safety control method as described in any one of claims 1 to 2.

6. A computer program product, characterized in that, The computer program product includes a computer program that, when executed by a processor, implements the steps of the charging interface safety control method as described in any one of claims 1 to 2.

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