Method, system and equipment for controlling oil filler cap of extended-range automobile and medium

Abstract

The invention belongs to the technical field of hybrid electric vehicles, and relates to a method, a system and equipment for controlling an oil filler cap of an extended-range vehicle and a medium. The refueling request is responded only when the vehicle power supply is the ON gear, the gear is the P gear and the vehicle speed is lower than the first threshold value, and it is ensured that the vehicle is refueled in the static and power-ready state. And in the shutdown state of the range extender, the high-pressure oil tank isolating valve is opened, the high-pressure oil tank relieves pressure, and the refueling safety is guaranteed. The opening cover is unlocked when the pressure of the fuel tank is normal, automatic locking is achieved after refueling is completed, user operation is simplified, manual operation omission is avoided, and meanwhile fuel steam leakage after refueling is prevented. And when the vehicle speed exceeds a second threshold value, the filler cap is automatically locked, and the filler cap is prevented from being accidentally opened during driving. According to the method, by continuously monitoring the key parameters of the vehicle, a real-time basis is provided for safety decision, safe pressure relief of the high-pressure oil tank is achieved, refueling safety is guaranteed, misoperation of a refueling port cover in the vehicle running or non-safe state is avoided, and potential safety hazards are prevented.

Description

Technical Field

[0001] The invention belongs to the technical field of hybrid electric vehicles, and relates to a method, system, device and medium for controlling a fuel filler cap of a range-extended vehicle. Background Art

[0002] With the popularization of new energy vehicles, the functions of automobiles have extended from a means of transportation to mobile office and smart interaction scenarios. The intelligent field of new energy vehicles is also changing with each passing day, and the functions of automobiles are becoming more abundant. Cars are not only a means of transportation, but also a mobile office space for customers. Therefore, the requirements for the safety of various functions of automobiles are getting higher and higher.

[0003] An extended-range vehicle is a vehicle that can meet its power performance requirements in pure electric mode. When the on-board energy storage system cannot meet the endurance requirements, the extended-range system can be activated and the generator can be used to generate electricity to provide electrical energy for the power system to extend the range.

[0004] Range-extended vehicles usually need to be equipped with high-pressure fuel tanks. The high-pressure fuel tank (pressure-type fuel tank) causes internal pressure fluctuations due to the frequent starting and stopping of the range extender. If the pressure is not completely released during refueling, and if there is no reasonable control refueling strategy, when the refueling personnel open the refueling port of the high-pressure fuel tank, there is a high possibility that there will be a high pressure in the high-pressure fuel tank, causing fuel to spray out, resulting in fuel waste and environmental pollution, and it is also easy to cause harm to the refueling personnel. Summary of the invention

[0005] The object of the present invention is to provide a method, system, device and medium for controlling the fuel filler cap of a range-extended vehicle, so as to solve the technical problem that the high-pressure fuel tank of the range-extended vehicle is prone to fuel spraying when the pressure is not completely relieved.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: In a first aspect, the present invention provides a method for controlling a fuel filler cap of an extended-range vehicle, comprising the following steps: Obtain vehicle power-on status, vehicle gear status, vehicle speed, range extender operating status and fuel tank pressure in real time; When the vehicle power is in the ON position, the gear is in the P position, and the vehicle speed is less than a first threshold speed, sending a refueling request; After receiving the refueling request confirmation signal, determine the operating status of the range extender; If the range extender is in operation, the range extender is controlled to shut down; If the range extender is in shutdown state, the high-pressure oil tank isolation valve is controlled to open; If the pressure in the fuel tank is within the pressure threshold range, the fuel filler cap is unlocked; After obtaining the fuel filler cap closing signal, control the closing of the fuel tank isolation valve; After the fuel tank isolation valve closing signal is obtained, when the vehicle speed is greater than a second threshold speed, the fuel filler cap is controlled to be locked.

[0007] Furthermore, if the gear position is not the P gear, an ICM pop-up box and voice prompt will be displayed saying “The gear position is not the P gear, the function is not available”.

[0008] Furthermore, if the vehicle speed is greater than the first threshold speed, an ICM pop-up window and voice prompt "vehicle speed is too high, function unavailable" are displayed; The first threshold speed is three kilometers per hour; The second threshold speed is equal to the first threshold speed.

[0009] Furthermore, after the fuel filler cap is unlocked, the fuel filler cap switch status is obtained in real time, and the fuel filler cap switch status is displayed in real time through the ICM; If the fuel filler cap is not closed and the vehicle starts, a voice prompt will be given and the ICM pop-up window will be used for confirmation. After receiving the confirmation signal from the pop-up window, control the vehicle to start.

[0010] Furthermore, the confirmation through the ICM pop-up window includes biometrics and password confirmation; If the biometric recognition fails, the SMS verification code secondary authentication will be triggered.

[0011] Furthermore, the control drives the fuel filler cap to be locked, and after obtaining a fuel filler cap locking confirmation signal, controls the fuel tank isolation valve to be closed.

[0012] Furthermore, after the fuel tank isolation valve is open for longer than a threshold time and no fuel filler cap closing signal is obtained, the fuel tank isolation valve is controlled to be closed.

[0013] In a second aspect, the present invention provides a control system for a fuel filler cap of an extended-range vehicle, comprising: Data acquisition module: used to obtain the vehicle power-on status, vehicle gear status, vehicle speed, range extender operating status and fuel tank pressure in real time; Condition judgment module: used to send a refueling request when the vehicle power is in the ON position, the gear is in the P position and the vehicle speed is less than the first threshold speed Range extender status processing module: used to determine the operating status of the range extender after receiving the refueling request confirmation signal; If the range extender is in operation, the range extender is controlled to shut down; If the range extender is in shutdown state, the high-pressure oil tank isolation valve is controlled to open; Pressure judgment module: used to drive the fuel filler cap to unlock if the pressure in the fuel tank is within the pressure threshold range; Isolation valve closing module: used to control the closing of the fuel tank isolation valve after obtaining the fuel filler cap closing signal; Fuel filler cap locking module: used to control the fuel filler cap to be locked after obtaining the fuel tank isolation valve closing signal when the vehicle speed is greater than the second threshold speed.

[0014] In a third aspect, the present invention provides an electronic device, comprising: a processor; a memory for storing computer program instructions; and a method for implementing a method for controlling a fuel filler cap of an extended-range vehicle when executing the computer program.

[0015] In a fourth aspect, the present invention provides a storage medium storing computer program instructions. When the computer program instructions are loaded and executed by a processor, the processor executes a method for controlling a fuel filler cap of an extended-range vehicle.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The method of the present invention sends a refueling request only when the vehicle power is in the ON gear, the gear is in the P gear and the vehicle speed is lower than the first threshold, ensuring that the vehicle is refueled in a stationary state. After receiving the refueling request confirmation signal, the operating status of the range extender is judged, and when the range extender is stopped, the high-pressure fuel tank isolation valve is opened, the high-pressure fuel tank is depressurized, and the pressure inside and outside the tank is balanced to ensure the safety of refueling. The cover is unlocked when the tank pressure is normal, and it is automatically locked after refueling is completed, which simplifies user operation, avoids manual operation omissions, and prevents fuel vapor leakage after refueling. When the vehicle speed exceeds the second threshold, the cover is automatically locked to prevent the fuel cap from being accidentally opened during driving. The method of the present invention continuously monitors the key parameters of the vehicle to provide a real-time basis for safety decision-making, realizes the safe pressure relief of the high-pressure fuel tank, ensures the safety of refueling, avoids misoperation of the fuel cap when the vehicle is driving or in an unsafe state, and prevents safety hazards.

[0017] The system of the present invention comprises: a data acquisition module, a condition judgment module, a range extender state processing module, a pressure judgment module, an isolation valve closing module and a fuel filler cap locking module; the data acquisition module is used for real-time acquisition of the vehicle power-on state, the vehicle gear state, the vehicle speed, the range extender operation state and the pressure in the fuel tank; the condition judgment module is used for sending a refueling request when the vehicle power is in the ON gear, the gear is the P gear and the vehicle speed is less than the first threshold speed; the range extender operation state processing module is used for judging the range extender operation state after receiving the refueling request confirmation signal; if the range extender is in the operation state, the range extender is controlled to be shut down; if the range extender is in the shutdown state, the high-pressure fuel tank isolation valve is controlled to be opened; the pressure judgment module is used for driving the fuel filler cap to be unlocked if the pressure in the fuel tank is within the pressure threshold range; the isolation valve closing module is used for controlling the closing of the fuel tank isolation valve after obtaining the fuel filler cap closing signal; the fuel filler cap locking module is used for controlling the driving fuel filler cap to be locked when the vehicle speed is greater than the second threshold speed after obtaining the fuel tank isolation valve closing signal. The various modules work together to achieve safe pressure relief in the high-pressure fuel tank and ensure the safety of refueling.

[0018] The electronic device and storage medium of the present invention can also achieve safe pressure relief of the high-pressure oil tank, thereby ensuring the safety of refueling. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a flow chart of a method according to an embodiment of the present invention; Figure 2 A system connection diagram of an embodiment of the present invention; Figure 3 4 is a system module diagram of an embodiment of the present invention. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0021] It should be noted that the terms "first", "second", etc. in the specification of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0022] The present invention is further described in detail below in conjunction with the accompanying drawings: The names and descriptions of the controllers involved are as follows: HCU: vehicle controller, responsible for judging the refueling request permission conditions and controlling the start and stop of the range extender; EMS: Engine control unit, receives the refueling request signal to control the high-pressure fuel tank isolation valve for pressure relief; receives the range extender request signal from the HCU to control the start and stop of the range extender; ZCU: Left domain controller, used to provide power mode and drive the fuel filler cap unlocking; ICM: Intelligent Cockpit Controller, used to display the fuel filler cap status and send fuel filler cap unlock request; Embodiment 1: See also Figure 1 The present invention discloses a method for controlling a fuel filler cap of a range-extended vehicle, comprising the following steps: S1, real-time acquisition of vehicle power-on status, vehicle gear status, vehicle speed, range extender operating status and fuel tank pressure, continuous monitoring of vehicle key parameters (power-on status, gear, vehicle speed, range extender status, fuel tank pressure), providing real-time basis for safety decision-making, avoiding accidental operation of the fuel filler cap when the vehicle is moving or in an unsafe state, and preventing safety hazards.

[0023] S2, when the vehicle power is in the ON gear, the gear is in the P gear and the vehicle speed is less than the first threshold speed, send a refueling request. Ensure that the vehicle is stationary and the power is ready to refuel, avoid vehicle movement or accidental activation of the power system during refueling, and the refueling request needs to be manually confirmed.

[0024] It should be noted that the vehicle power being in the ON position means that the vehicle is powered on; The first threshold speed is three kilometers per hour; The second threshold speed is equal to the first threshold speed.

[0025] Preferably, if the gear is not the P gear, an ICM pop-up box and voice prompt "The gear is not the P gear, the function is not available" are displayed, and the next step can only be performed when the gear is P, so as to avoid accidentally triggering the unlocking of the fuel filler cap while driving.

[0026] Preferably, if the vehicle speed is greater than the first threshold speed, an ICM pop-up window and voice prompt "vehicle speed is too high, function is not available" are displayed. This prevents sudden changes in tank pressure or mechanical shock under dynamic conditions and improves system stability.

[0027] S3, after receiving the refueling request confirmation signal, determine the operating status of the range extender; If the range extender is in operation, the range extender is controlled to shut down.

[0028] If the range extender is in the shutdown state, the high-pressure fuel tank isolation valve is controlled to open, that is, the high-pressure fuel tank isolation valve is opened after the range extender is shut down to balance the pressure inside and outside the fuel tank to ensure refueling safety.

[0029] S4, if the pressure in the fuel tank is within the pressure threshold range, the fuel filler cap is unlocked. The cap is unlocked when the fuel tank pressure is normal, and automatically locked after refueling is completed, which simplifies user operation, avoids manual operation omissions, and prevents fuel vapor leakage after refueling.

[0030] Preferably, the pressure threshold is configured to be temperature-dependent.

[0031] Preferably, after the fuel filler cap is unlocked, the fuel filler cap switch status is obtained in real time, and the fuel filler cap switch status is displayed in real time through the ICM; If the fuel filler cap is not closed and the vehicle starts, a voice prompt will be given and the ICM pop-up window will be used for confirmation. The confirmation through the ICM pop-up window includes: biometric identification and password confirmation; If biometric recognition fails, secondary authentication via SMS verification code will be triggered; After receiving the confirmation signal from the pop-up window, control the vehicle to start.

[0032] S5, after obtaining the fuel filler cap closing signal, controlling the closing of the fuel tank isolation valve; S6, after obtaining the fuel tank isolation valve closing signal, when the vehicle speed is greater than the second threshold speed, control the fuel filler cap to be locked, and after obtaining the fuel filler cap locking confirmation signal, control the fuel tank isolation valve to be closed to prevent the fuel filler cap from being accidentally opened during driving.

[0033] Preferably, after the opening time of the fuel tank isolation valve exceeds a threshold time, a fuel filler cap closing signal is obtained to control the closing of the fuel tank isolation valve.

[0034] The present invention eliminates the risk of human operational errors through multi-condition verification and automated control. The automated process reduces user operating steps, such as manual shutdown and valve opening and closing, thereby improving refueling convenience.

[0035] Based on the above method, this embodiment also discloses a fuel filler cap control system for an extended-range vehicle, see Figure 3 , including: a data acquisition module, a condition judgment module, a range extender operation status processing module, a range extender shutdown status processing module, a pressure judgment module, an isolation valve closing module and a fuel filler cap locking module; Data acquisition module: used to obtain the vehicle power-on status, vehicle gear status, vehicle speed, range extender operating status and fuel tank pressure in real time; Condition judgment module: when the vehicle power is in the ON position, the gear is in the P position and the vehicle speed is less than the first threshold speed, a refueling request is sent; Range extender status processing module: used to determine the operating status of the range extender after receiving the refueling request confirmation signal; If the range extender is in operation, the range extender is controlled to shut down; If the range extender is in shutdown state, the high-pressure oil tank isolation valve is controlled to open; Pressure judgment module: used to drive the fuel filler cap to unlock if the pressure in the fuel tank is within the pressure threshold range; Isolation valve closing module: used to control the closing of the fuel tank isolation valve after obtaining the fuel filler cap closing signal; Fuel filler cap locking module: used to control the fuel filler cap to be locked after obtaining the fuel tank isolation valve closing signal when the vehicle speed is greater than the second threshold speed.

[0036] Embodiment 2: See also Figure 2 , is a system block diagram in an implementation case of the present invention, showing the mutual information exchange between controllers in the control system. The system includes: refueling request, high-pressure tank pressure relief, fuel filler cap unlocking and locking processes, and specifically includes the following scenarios: Scenario 1: Fuel filler cap control method, as follows: Prerequisites: The vehicle power is on, the gear is in P gear, and the vehicle speed is less than 3km / h; The vehicle power ON position means that the high voltage system is ready, such as the power battery is high voltage, but the drive motor has not started, and the vehicle is in a drivable standby state; Trigger action: operate the ICM fuel filler cap soft switch; Execute action: S1, ICM sends a refueling request, and HCU determines the range extender status after receiving it. If the range extender is in operation, HCU sends a range extender shutdown request to EMS to control the range extender to shut down; S2, after the HCU determines that the refueling conditions are met, it sends a refueling request to the EMS. After receiving the refueling request from the HCU, the EMS prohibits the start of the range extender, drives the high-pressure fuel tank isolation valve to open, and the high-pressure fuel tank is depressurized. The EMS determines whether the pressure in the fuel tank is safe to open the fuel tank through the pressure sensor. If so, it feedbacks the refueling permission status; S3, ZCU receives the refueling permission status feedback from EMS, drives the fuel filler cap to unlock, and feedbacks the fuel filler cap unlocking status.

[0037] S4, after ICM receives the unlock status of the fuel filler cap, the large screen text prompts that the fuel filler cap is unlocked; S5, at this time, the fuel filler cap is unlocked, and the user can open the fuel filler cap to refuel by pressing the fuel filler cap cover; S6, after refueling is completed, the user closes the fuel filler cap, and after the EMS receives the fuel filler cap closing signal, the EMS controls the closing of the fuel tank isolation valve.

[0038] S7: When the ZCU receives the fuel filler cap closing signal and determines that the vehicle speed is greater than 3 km / h, it drives the fuel filler cap to lock.

[0039] Scenario 2: The control method when the fuel filler cap switch does not meet the operating conditions is as follows: S1, if the gear is not in P gear, when operating the fuel filler cap soft switch, the ICM large screen pops up a message "The gear is not in P gear, the function is not available"; S2, if the vehicle speed is greater than 3km / h, when operating the fuel filler cap soft switch, the ICM large screen pops up a message "The vehicle speed is too high and the function is not available".

[0040] Scenario 3: The vehicle control method is started when the fuel filler cap is not closed. The details are as follows: S1, the fuel filler cap is equipped with an open / closed state sensor, which sends the fuel filler cap state in real time; S2, ICM receives the fuel filler cap open status, and the large screen displays the fuel filler cap open status; S3, HCU receives the fuel filler cap open state. If the user starts the vehicle at this time, HCU prohibits the vehicle from starting and sends a fuel filler cap open prompt signal to ICM; S4, after the large screen receives the signal, a pop-up window prompts the confirmation message "The fuel filler cap is not closed, please close the fuel filler cap or click to confirm and start the vehicle"; S5, after the fuel filler cap is closed or the motor confirmation button is pressed, the HCU can control the vehicle to start; It should be noted that the pop-up confirmation button is designed to avoid damage or false alarms in the fuel filler cap status sensor, which can force the vehicle to start for subsequent maintenance work.

[0041] Scenario 4: The method of locking the fuel filler cap is as follows: S1, after refueling is completed and the fuel filler cap is closed, the ZCU receives the fuel filler cap closing signal and determines that the vehicle speed is greater than 3 km / h, and then drives the fuel filler cap to lock; S2, after refueling is completed and the fuel filler cap is closed, the ZCU receives the fuel filler cap closing signal for more than a certain period of time. If the fuel filler cap is still in the unlocked state, the fuel filler cap is driven to be locked.

[0042] Scenario 5: The control method of the oil tank isolation valve is as follows: S1, after refueling is completed and the fuel filler cap is closed, the EMS receives the fuel filler cap closing signal and drives the fuel tank isolation valve to close; S2, after the EMS drives the oil tank isolation valve to open, if it does not receive the fuel filler cap closing signal after a certain period of time, it is determined that refueling has been completed, and the oil tank isolation valve is driven to close.

[0043] The present invention responds to a refueling request only when the vehicle power is in the ON gear, the gear position is in the P gear and the vehicle speed is lower than a first threshold, thereby ensuring that the vehicle is refueled when it is stationary and in a power-ready state.

[0044] The present invention opens the high-pressure oil tank isolation valve only when the range extender is stopped, and the high-pressure oil tank is depressurized to balance the pressure inside and outside the oil tank, thereby ensuring the safety of refueling.

[0045] The invention unlocks the cover when the fuel tank pressure is normal and automatically locks it after refueling is completed, thereby simplifying user operation, avoiding manual operation omissions, and preventing fuel vapor leakage after refueling.

[0046] The present invention automatically locks the cover when the vehicle speed exceeds a second threshold value, thereby preventing the fuel filler cover from being accidentally opened during driving.

[0047] The present invention provides a real-time basis for safety decision-making by continuously monitoring key vehicle parameters, realizes safe pressure relief of the high-pressure fuel tank, ensures the safety of refueling, avoids misoperation of the fuel filler cap when the vehicle is driving or in an unsafe state, and prevents safety hazards.

[0048] An electronic device comprises: a processor; a memory for storing computer program instructions; and steps for implementing a method for controlling a fuel filler cap of a range-extended vehicle when executing the computer program.

[0049] A storage medium stores computer program instructions. When the computer program instructions are loaded and run by a processor, the processor executes a method for controlling a fuel filler cap of an extended-range vehicle.

[0050] It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0051] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0052] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0053] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0054] The above contents are only for explaining the technical idea of ​​the present invention and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present invention shall fall within the protection scope of the present invention.

Claims

1. A method for controlling a fuel filler cap of an extended-range vehicle, characterized in that: The following steps are involved: Obtain vehicle power-on status, vehicle gear status, vehicle speed, range extender operating status and fuel tank pressure in real time; When the vehicle power is in the ON position, the gear is in the P position, and the vehicle speed is less than a first threshold speed, sending a refueling request; After receiving the refueling request confirmation signal, determine the operating status of the range extender; If the range extender is in operation, the range extender is controlled to shut down; If the range extender is in shutdown state, the high-pressure oil tank isolation valve is controlled to open; If the pressure in the fuel tank is within the pressure threshold range, the fuel filler cap is unlocked; After obtaining the fuel filler cap closing signal, control the closing of the fuel tank isolation valve; After the fuel tank isolation valve closing signal is obtained, when the vehicle speed is greater than a second threshold speed, the fuel filler cap is controlled to be locked.

2. A method for controlling a fuel filler cap of a range-extended vehicle according to claim 1, characterized in that: If the gear position is not P, an ICM pop-up window and voice prompt will appear saying "The gear position is not P, function not available".

3. The method for controlling the fuel filler cap of a range-extended vehicle according to claim 1, characterized in that: If the vehicle speed is greater than the first threshold speed, an ICM pop-up window and voice prompt "vehicle speed is too high, function unavailable" are displayed; The first threshold speed is three kilometers per hour; The second threshold speed is equal to the first threshold speed.

4. The method for controlling the fuel filler cap of a range-extended vehicle according to claim 1, characterized in that: After the fuel filler cap is unlocked, the fuel filler cap switch status is acquired in real time, and the fuel filler cap switch status is displayed in real time through the ICM; If the fuel filler cap is not closed and the vehicle starts, a voice prompt will be given and the ICM pop-up window will be used for confirmation. After receiving the confirmation signal from the pop-up window, control the vehicle to start.

5. A method for controlling a fuel filler cap of a range-extended vehicle according to claim 4, characterized in that: The confirmation through the ICM pop-up window includes biometrics and password confirmation; If the biometric recognition fails, the SMS verification code secondary authentication will be triggered.

6. A method for controlling a fuel filler cap of a range-extended vehicle according to claim 1, characterized in that: The control drives the fuel filler cap to be locked, and after obtaining the fuel filler cap locking confirmation signal, controls the fuel tank isolation valve to be closed.

7. A method for controlling a fuel filler cap of a range-extended vehicle according to claim 1, characterized in that: After the fuel tank isolation valve is open for longer than a threshold time and no fuel filler cap closing signal is obtained, the fuel tank isolation valve is controlled to be closed.

8. A control system for a fuel filler cap of an extended-range vehicle, characterized in that: include: Data acquisition module: used to obtain the vehicle power-on status, vehicle gear status, vehicle speed, range extender operating status and fuel tank pressure in real time; Condition judgment module: used to send a refueling request when the vehicle power is in the ON gear, the gear is in the P gear and the vehicle speed is less than the first threshold speed; Range extender status processing module: used to determine the operating status of the range extender after receiving the refueling request confirmation signal; If the range extender is in operation, the range extender is controlled to shut down; If the range extender is in shutdown state, the high-pressure oil tank isolation valve is controlled to open; Pressure judgment module: used to drive the fuel filler cap to unlock if the pressure in the fuel tank is within the pressure threshold range; Isolation valve closing module: used to control the closing of the fuel tank isolation valve after obtaining the fuel filler cap closing signal; Fuel filler cap locking module: used to control the fuel filler cap to be locked after obtaining the fuel tank isolation valve closing signal when the vehicle speed is greater than the second threshold speed.

9. An electronic device, comprising: Processor; memory, electronic device used to store computer program instructions; characterized in that it is used to implement the steps of the extended-range vehicle fuel filler cap control method as described in any one of claims 1-7 when executing the computer program.

10. A storage medium storing computer program instructions, characterized in that: When the computer program instructions are loaded and executed by the processor, the processor executes the range-extended vehicle fuel filler cap control method according to any one of claims 1 to 7.

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