Safety control method and device for hydrogen discharging system, vehicle and storage medium

Abstract

The invention relates to the technical field of vehicles, in particular to a safety control method and device for a hydrogen discharging system, a vehicle and a storage medium, and the method comprises the steps that the current hydrogen discharging working condition of the vehicle is determined, and if a hydrogen discharging request signal corresponding to the current hydrogen discharging working condition is received, based on the hydrogen discharging request signal corresponding to the current hydrogen discharging working condition, a hydrogen discharging request signal corresponding to the current hydrogen discharging working condition is received; and obtaining a vehicle surrounding environment identification result, generating a safety control strategy of the current hydrogen discharge working condition according to the vehicle surrounding environment identification result, and controlling the vehicle to perform safe hydrogen discharge based on the safety control strategy. Therefore, the problems that due to the lack of an intelligent safety detection and control mechanism, accidents such as hydrogen gathering and even explosion are easily caused by misoperation in the hydrogen discharging process, and the safety of the hydrogen discharging process in a complex environment is difficult to ensure are solved, the hydrogen discharging environment is recognized, and a corresponding safety control strategy is generated when the hydrogen discharging risk exists, so that the safety of the hydrogen discharging process in the complex environment is ensured. Therefore, the safety of hydrogen discharge is improved.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a safety control method, device, vehicle and storage medium for a hydrogen discharge system. Background Art

[0002] Hydrogen fuel cell vehicles use high-pressure gaseous hydrogen as an energy supply method. To ensure vehicle safety, when hydrogen needs to be discharged, it is usually discharged in three ways: (1) After the vehicle stops, the hydrogen fuel cell is purged to discharge hydrogen from the exhaust pipe; (2) In an emergency, the TPRD (Thermal Protection Release Device) of the hydrogen bottle mouth valve is activated to discharge hydrogen from the high-pressure exhaust pipe; (3) Before inspecting or replacing the hydrogen supply system, the low-pressure exhaust valve is activated to discharge hydrogen from the low-pressure exhaust pipe.

[0003] In the related art, simple mechanical valve control is usually relied upon to discharge hydrogen when one of the above three situations occurs.

[0004] However, since hydrogen itself is flammable and explosive, a safe hydrogen discharge environment and control method are required. However, the above method lacks an intelligent safety detection and control mechanism. Improper operation during the hydrogen discharge process can easily lead to hydrogen accumulation, which in turn may cause fire or explosion accidents. It is difficult to ensure the safety of the hydrogen discharge process in a complex environment, and this problem needs to be solved urgently. Summary of the invention

[0005] The present application provides a safety control method, device, vehicle and storage medium for a hydrogen discharge system to solve the problem that due to the lack of an intelligent safety detection and control mechanism, improper operation during the hydrogen discharge process can easily lead to hydrogen accumulation and even accidents such as explosions, making it difficult to ensure the safety of the hydrogen discharge process in a complex environment.

[0006] The first embodiment of the present application provides a safety control method for a hydrogen discharge system, comprising the following steps:

[0007] Determine the current hydrogen exhaust condition of the vehicle;

[0008] If a hydrogen discharge request signal corresponding to the current hydrogen discharge operating condition is received, obtaining a vehicle surrounding environment recognition result based on the hydrogen discharge request signal corresponding to the current hydrogen discharge operating condition;

[0009] A safety control strategy for the current hydrogen discharge condition is generated according to the vehicle surrounding environment recognition result, and the vehicle is controlled to discharge hydrogen safely based on the safety control strategy.

[0010] According to one embodiment of the present application, the hydrogen discharge conditions of the vehicle include a hydrogen discharge condition by purging, a hydrogen discharge condition by TPRD activation, and a hydrogen discharge condition by low-pressure drain valve activation.

[0011] According to an embodiment of the present application, the current hydrogen discharge condition is the hydrogen purge condition, generating a safety control strategy for the current hydrogen discharge condition according to the vehicle surrounding environment recognition result, and controlling the vehicle to safely discharge hydrogen based on the safety control strategy, including:

[0012] Based on the vehicle surrounding environment recognition result, determining whether there is a target obstacle around the vehicle;

[0013] If the target obstacle does not exist around the vehicle, the first solenoid valve of the hydrogen discharge system is controlled to open and perform a purge action to discharge hydrogen from the vehicle; otherwise, a first distance between the target obstacle and the vehicle is obtained, wherein the first solenoid valve is respectively connected to a fuel cell controller, a fuel cell and a first temperature sensor of the hydrogen discharge system;

[0014] If the first distance satisfies a first hydrogen discharge distance threshold, the first solenoid valve is controlled to open and a purge action is performed to discharge hydrogen from the vehicle; otherwise, temperature data around the vehicle is obtained, and it is determined whether the temperature data is greater than a first preset temperature threshold;

[0015] If the temperature data is less than or equal to the first preset temperature threshold, the first solenoid valve is controlled to open and a purge action is performed to discharge hydrogen from the vehicle; otherwise, it is determined whether the vehicle meets an active starting condition;

[0016] If the vehicle meets the active starting condition, the vehicle is controlled to start actively and the vehicle surrounding environment recognition result is reacquired; otherwise, a first hydrogen discharge rejection signal is generated and a first reminder signal is sent to the user.

[0017] According to an embodiment of the present application, the current hydrogen discharge condition is the TPRD activated hydrogen discharge condition, the generating of the safety control strategy for the current hydrogen discharge condition according to the vehicle surrounding environment recognition result, and controlling the vehicle to discharge hydrogen safely based on the safety control strategy, includes:

[0018] generating a second reminder signal according to the hydrogen discharge request signal corresponding to the TPRD activation hydrogen discharge condition, and sending the second reminder signal to the user, and judging whether there is a target obstacle around the vehicle based on the vehicle surrounding environment recognition result;

[0019] If the target obstacle does not exist around the vehicle, the hydrogen bottle valve, the pressure reducing valve, the safety valve and the second solenoid valve of the hydrogen discharge system are controlled to be in an open state to discharge hydrogen from the vehicle; otherwise, a second distance between the target obstacle and the vehicle is obtained, wherein the second solenoid valve is respectively connected to the safety valve, the second temperature sensor and the hydrogen discharge system controller of the hydrogen discharge system;

[0020] If the second distance meets a second hydrogen discharge distance threshold, the hydrogen bottle valve, the pressure reducing valve, the safety valve and the second solenoid valve are all controlled to be in an open state to discharge hydrogen from the vehicle; otherwise, it is determined whether the vehicle meets an active acceleration condition;

[0021] If the vehicle meets the active acceleration condition, the vehicle is controlled to perform active acceleration, and the hydrogen bottle valve, the pressure reducing valve, the safety valve and the second solenoid valve are all controlled to be in an open state to discharge hydrogen from the vehicle; otherwise, the second distance between the target obstacle and the vehicle is reacquired.

[0022] According to an embodiment of the present application, the current hydrogen discharge condition is a hydrogen discharge condition in which the low-pressure drain valve activates the hydrogen discharge condition, and the safety control strategy for the current hydrogen discharge condition is generated according to the vehicle surrounding environment recognition result, and the vehicle is controlled to discharge hydrogen safely based on the safety control strategy, including:

[0023] Based on the vehicle surrounding environment recognition result, determining whether there is a target obstacle around the vehicle;

[0024] If the target obstacle does not exist around the vehicle, the second solenoid valve of the hydrogen discharge system is controlled to open to discharge hydrogen from the vehicle; otherwise, a third distance between the target obstacle and the vehicle is obtained;

[0025] If the third distance satisfies a third hydrogen discharge distance threshold, the second solenoid valve of the hydrogen discharge system is controlled to open, and hydrogen is discharged from the vehicle; otherwise, temperature data around the vehicle is obtained, and it is determined whether the temperature data is greater than a second preset temperature threshold;

[0026] If the temperature data is less than or equal to the second preset temperature threshold, the second solenoid valve is controlled to open and hydrogen is discharged from the vehicle; otherwise, it is determined whether the vehicle meets the active starting condition;

[0027] If the vehicle meets the active starting condition, the vehicle is controlled to start actively and the vehicle surrounding environment recognition result is reacquired; otherwise, a second hydrogen discharge rejection signal is generated and a third reminder signal is sent to the user.

[0028] According to the safety control method of the hydrogen discharge system of the embodiment of the present application, the current hydrogen discharge condition of the vehicle is determined. If a hydrogen discharge request signal corresponding to the current hydrogen discharge condition is received, the vehicle surrounding environment recognition result is obtained based on the hydrogen discharge request signal corresponding to the current hydrogen discharge condition, so as to generate a safety control strategy for the current hydrogen discharge condition based on the vehicle surrounding environment recognition result, and control the vehicle to discharge hydrogen safely based on the safety control strategy. In this way, the problem that improper operation during the hydrogen discharge process is prone to hydrogen accumulation and even explosion accidents due to the lack of intelligent safety detection and control mechanism is solved, and it is difficult to ensure the safety of the hydrogen discharge process in a complex environment. By identifying the hydrogen discharge environment and generating a corresponding safety control strategy when there is a risk of hydrogen discharge, the safety of hydrogen discharge is improved.

[0029] A second aspect of the present application provides a safety control device for a hydrogen discharge system, comprising:

[0030] A determination module, used to determine a current hydrogen exhaust condition of the vehicle;

[0031] an acquisition module, configured to acquire a vehicle surrounding environment recognition result based on the hydrogen discharge request signal corresponding to the current hydrogen discharge working condition if a hydrogen discharge request signal corresponding to the current hydrogen discharge working condition is received;

[0032] A control module is used to generate a safety control strategy for the current hydrogen discharge condition according to the vehicle surrounding environment identification result, and control the vehicle to discharge hydrogen safely based on the safety control strategy.

[0033] According to one embodiment of the present application, the hydrogen discharge conditions of the vehicle include a hydrogen discharge condition by purging, a hydrogen discharge condition by TPRD activation, and a hydrogen discharge condition by low-pressure drain valve activation.

[0034] According to one embodiment of the present application, the control module includes:

[0035] A first judgment unit, configured to judge whether there is a target obstacle around the vehicle based on the vehicle surrounding environment recognition result;

[0036] a first control unit, configured to control a first solenoid valve of a hydrogen discharge system to open and perform a purge action to discharge hydrogen from the vehicle if the target obstacle does not exist around the vehicle, and otherwise obtain a first distance between the target obstacle and the vehicle, wherein the first solenoid valve is respectively connected to a fuel cell controller, a fuel cell and a first temperature sensor of the hydrogen discharge system;

[0037] a second judgment unit, configured to control the first solenoid valve to open and perform a purge action to discharge hydrogen from the vehicle if the first distance satisfies a first hydrogen discharge distance threshold, and otherwise, obtain temperature data around the vehicle and judge whether the temperature data is greater than a first preset temperature threshold;

[0038] a third judgment unit, configured to control the first solenoid valve to open and perform a purge action to discharge hydrogen from the vehicle if the temperature data is less than or equal to the first preset temperature threshold, and otherwise, to judge whether the vehicle meets an active starting condition;

[0039] The second control unit is used to control the vehicle to actively start if the vehicle meets the active starting condition and re-acquire the vehicle surrounding environment recognition result; otherwise, generate a first hydrogen discharge rejection signal and send a first reminder signal to the user.

[0040] According to one embodiment of the present application, the control module includes:

[0041] A fourth judgment unit is used to generate a second reminder signal according to the hydrogen discharge request signal corresponding to the TPRD activation hydrogen discharge condition, and send the second reminder signal to the user, and at the same time, judge whether there is a target obstacle around the vehicle based on the vehicle surrounding environment recognition result;

[0042] a first acquisition unit, configured to control the hydrogen bottle valve, the pressure reducing valve, the safety valve and the second solenoid valve of the hydrogen discharge system to be in an open state to discharge hydrogen from the vehicle if the target obstacle does not exist around the vehicle, and otherwise, to acquire a second distance between the target obstacle and the vehicle, wherein the second solenoid valve is respectively connected to the safety valve, the second temperature sensor and the hydrogen discharge system controller of the hydrogen discharge system;

[0043] a fifth judgment unit, configured to control the hydrogen bottle valve, the pressure reducing valve, the safety valve and the second solenoid valve to be in an open state to discharge hydrogen from the vehicle if the second distance meets a second hydrogen discharge distance threshold, and otherwise, to judge whether the vehicle meets an active acceleration condition;

[0044] The third control unit is used to control the vehicle to actively accelerate if the vehicle meets the active acceleration condition, and control the hydrogen bottle valve, the pressure reducing valve, the safety valve and the second solenoid valve to be in an open state to discharge hydrogen from the vehicle; otherwise, re-acquire the second distance between the target obstacle and the vehicle.

[0045] According to one embodiment of the present application, the control module includes:

[0046] A sixth judgment unit, configured to judge whether there is a target obstacle around the vehicle based on the vehicle surrounding environment recognition result;

[0047] a fourth control unit, configured to control the second solenoid valve of the hydrogen discharge system to open to discharge hydrogen from the vehicle if the target obstacle does not exist around the vehicle, and otherwise, to obtain a third distance between the target obstacle and the vehicle;

[0048] a seventh judgment unit, configured to control the second solenoid valve of the hydrogen discharge system to open and discharge hydrogen from the vehicle if the third distance satisfies a third hydrogen discharge distance threshold, and otherwise, obtain temperature data around the vehicle and judge whether the temperature data is greater than a second preset temperature threshold;

[0049] an eighth judgment unit, configured to control the second solenoid valve to open and discharge hydrogen from the vehicle if the temperature data is less than or equal to the second preset temperature threshold, and otherwise, to judge whether the vehicle meets an active starting condition;

[0050] The second acquisition unit is used to control the vehicle to actively start and re-acquire the vehicle surrounding environment recognition result if the vehicle meets the active starting condition; otherwise, generate a second hydrogen discharge rejection signal and send a third reminder signal to the user.

[0051] According to the safety control device of the hydrogen discharge system of the embodiment of the present application, the current hydrogen discharge condition of the vehicle is determined. If a hydrogen discharge request signal corresponding to the current hydrogen discharge condition is received, the vehicle surrounding environment recognition result is obtained based on the hydrogen discharge request signal corresponding to the current hydrogen discharge condition, so as to generate a safety control strategy for the current hydrogen discharge condition based on the vehicle surrounding environment recognition result, and control the vehicle to discharge hydrogen safely based on the safety control strategy. In this way, the problem that improper operation during the hydrogen discharge process is prone to hydrogen accumulation and even explosion accidents due to the lack of intelligent safety detection and control mechanism is solved, and it is difficult to ensure the safety of the hydrogen discharge process in a complex environment. By identifying the hydrogen discharge environment and generating a corresponding safety control strategy when there is a risk of hydrogen discharge, the safety of hydrogen discharge is improved.

[0052] A third aspect of the present application provides a vehicle, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the safety control method of the hydrogen discharge system as described in the above embodiment.

[0053] A fourth aspect of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable the computer to execute the safety control method of the hydrogen discharge system as described in the above embodiment.

[0054] A fifth aspect of the present application provides a computer program product, including a computer program, which is executed to implement the safety control method of the hydrogen discharge system described in the above embodiment.

[0055] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0057] Figure 1 A flowchart of a safety control method for a hydrogen discharge system provided according to an embodiment of the present application;

[0058] Figure 2 A schematic diagram of the layout of a hydrogen system for a hydrogen fuel cell vehicle according to an embodiment of the present application;

[0059] Figure 3 A schematic diagram of the purge and hydrogen discharge control logic according to an embodiment of the present application;

[0060] Figure 4 A schematic diagram of TPRD activation hydrogen discharge control logic according to an embodiment of the present application;

[0061] Figure 5 A schematic diagram of hydrogen discharge control logic for activating a low-pressure discharge valve according to one embodiment of the present application;

[0062] Figure 6 is an exemplary diagram of a safety control device for a hydrogen discharge system according to an embodiment of the present application;

[0063] Figure 7 It is a schematic diagram of the structure of a vehicle according to an embodiment of the present application. DETAILED DESCRIPTION

[0064] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0065] The following describes the safety control method, device, vehicle and storage medium of the hydrogen discharge system of the embodiment of the present application with reference to the accompanying drawings. In view of the problem mentioned in the above background technology that due to the lack of intelligent safety detection and control mechanism, improper operation during the hydrogen discharge process is prone to hydrogen accumulation, and even explosions and other accidents, making it difficult to ensure the safety of the hydrogen discharge process in a complex environment, the present application provides a safety control method for a hydrogen discharge system, in which the current hydrogen discharge condition of the vehicle is determined. If a hydrogen discharge request signal corresponding to the current hydrogen discharge condition is received, the vehicle surrounding environment recognition result is obtained based on the hydrogen discharge request signal corresponding to the current hydrogen discharge condition, so as to generate a safety control strategy for the current hydrogen discharge condition according to the vehicle surrounding environment recognition result, and control the vehicle to discharge hydrogen safely based on the safety control strategy. Thus, the problem that due to the lack of intelligent safety detection and control mechanism, improper operation during the hydrogen discharge process is prone to hydrogen accumulation, and even explosions and other accidents, making it difficult to ensure the safety of the hydrogen discharge process in a complex environment is solved, and the safety of hydrogen discharge is improved by identifying the hydrogen discharge environment and generating a corresponding safety control strategy when there is a risk of hydrogen discharge.

[0066] Specifically, Figure 1 A schematic flow chart of a safety control method for a hydrogen discharge system provided in an embodiment of the present application.

[0067] like Figure 1 As shown, the safety control method of the hydrogen discharge system includes the following steps:

[0068] In step S101 , the current hydrogen exhaust condition of the vehicle is determined.

[0069] According to one embodiment of the present application, the hydrogen discharge conditions of the vehicle include a hydrogen discharge condition with purge, a hydrogen discharge condition with TPRD activation, and a hydrogen discharge condition with low-pressure drain valve activation.

[0070] Specifically, if Figure 2 As shown, under the condition of hydrogen discharge from a hydrogen fuel vehicle, first, before discharge, it is necessary to actively identify the collected vehicle surrounding information through the 360-degree panoramic camera and the temperature sensor, and check the hydrogen discharge environment at the rear of the vehicle based on the collected vehicle surrounding information. When there is a risk of hydrogen discharge, multiple actuators such as the exhaust gas discharge pipeline solenoid valve, the low-pressure exhaust pipeline solenoid valve, and the vehicle start are used for safety triggering, and the user is reminded through the instrument, vehicle voice, etc., thereby minimizing the possibility of safety accidents of hydrogen fuel cell vehicles.

[0071] Among them, there are three types of hydrogen discharge conditions for hydrogen fuel cell vehicles. After parking, the hydrogen fuel cell is purged to discharge hydrogen from the exhaust emission pipeline, that is, the vehicle is in a purging and hydrogen discharge condition; in an emergency, the TPRD of the hydrogen bottle mouth valve is activated to discharge hydrogen from the high-pressure exhaust pipeline, that is, the vehicle is in a TPRD-activated hydrogen discharge condition; before inspecting or replacing the hydrogen supply system, the low-pressure exhaust valve is activated to discharge hydrogen from the low-pressure exhaust pipeline, that is, the vehicle is in a low-pressure exhaust valve-activated hydrogen discharge condition.

[0072] In step S102 , if a hydrogen discharge request signal corresponding to the current hydrogen discharge operating condition is received, a vehicle surrounding environment recognition result is acquired based on the hydrogen discharge request signal corresponding to the current hydrogen discharge operating condition.

[0073] Specifically, if the vehicle is in any of the three hydrogen discharge conditions mentioned above, a corresponding hydrogen discharge request signal will be sent based on the current hydrogen discharge condition of the vehicle, so as to obtain the vehicle surrounding environment recognition result based on the hydrogen discharge request signal corresponding to the current hydrogen discharge condition.

[0074] In step S103, a safety control strategy for the current hydrogen discharge condition is generated according to the vehicle surrounding environment recognition result, and the vehicle is controlled to discharge hydrogen safely based on the safety control strategy.

[0075] According to an embodiment of the present application, the current hydrogen discharge condition is a purge hydrogen discharge condition, a safety control strategy for the current hydrogen discharge condition is generated according to the vehicle surrounding environment recognition result, and the vehicle is controlled to discharge hydrogen safely based on the safety control strategy, including: judging whether there is a target obstacle around the vehicle based on the vehicle surrounding environment recognition result; if there is no target obstacle around the vehicle, controlling the first solenoid valve of the hydrogen discharge system to open, and performing a purge action to discharge hydrogen from the vehicle, otherwise, obtaining a first distance between the target obstacle and the vehicle, wherein the first solenoid valve is respectively connected to the fuel cell controller of the hydrogen discharge system, the fuel cell and the first temperature sensor of the hydrogen discharge system; a device connected to the vehicle; if the first distance meets the first hydrogen discharge distance threshold, the first solenoid valve is controlled to open, and a purge action is performed to discharge hydrogen from the vehicle; otherwise, temperature data around the vehicle is obtained, and it is determined whether the temperature data is greater than a first preset temperature threshold; if the temperature data is less than or equal to the first preset temperature threshold, the first solenoid valve is controlled to open, and a purge action is performed to discharge hydrogen from the vehicle; otherwise, it is determined whether the vehicle meets the active starting condition; if the vehicle meets the active starting condition, the vehicle is controlled to start actively, and the vehicle surrounding environment recognition result is re-acquired; otherwise, a first hydrogen discharge rejection signal is generated, and a first reminder signal is sent to the user.

[0076] Among them, the first hydrogen discharge distance threshold and the first preset temperature threshold can be set by technical personnel in this field according to actual test requirements, and can also be pre-set through vehicle CAE (Computer-Aided Engineering) analysis and test simulation, and are not specifically limited here.

[0077] Specifically, if the current hydrogen discharge condition is a hydrogen purge discharge condition, a safety control strategy for the hydrogen purge discharge condition is generated according to the vehicle surrounding environment recognition result, and the vehicle is controlled to discharge hydrogen safely based on the safety control strategy for the hydrogen purge discharge condition.

[0078] Specifically, if Figure 3 As shown, if the current hydrogen discharge condition is the purge hydrogen discharge condition, the fuel cell control system FCCU (Fuel Cell Control Unit) sends a purge request signal based on the purge hydrogen discharge condition, and collects vehicle surrounding information through a 360-degree panoramic camera to obtain a vehicle surrounding environment recognition result, and sends the collected vehicle surrounding information to the ECU (Electronic Control Unit) to determine whether there is a target obstacle at the rear of the vehicle, such as other vehicles, pedestrians, obstacles, and other objects that may hinder hydrogen discharge. If there is no target obstacle around the vehicle, the first solenoid valve ( Figure 2 The solenoid valve 2) is opened, and the ECU agrees to perform the purge action to discharge hydrogen from the vehicle. Otherwise, the first distance between the target obstacle and the vehicle is obtained. If the first distance meets the first hydrogen discharge distance threshold, that is, the first distance meets the safe hydrogen discharge distance requirement, the first solenoid valve is controlled to be opened, and the ECU agrees to perform the purge action to discharge hydrogen from the vehicle. Otherwise, the temperature sensor ( Figure 2 The temperature sensor 2) collects the temperature data of the vehicle's surroundings and sends it to the ECU to determine whether the temperature data is greater than a first preset temperature threshold. If the temperature data is less than or equal to the first preset temperature threshold, the first solenoid valve is controlled to open, and the ECU agrees to perform the purging action to discharge hydrogen from the vehicle. Otherwise, the ECU further determines whether the vehicle meets the active starting conditions. If the vehicle meets the active starting conditions, the vehicle is controlled to start actively and the vehicle's surrounding environment recognition result is re-acquired. Otherwise, the ECU refuses to perform the purging action, generates a first hydrogen discharge rejection signal, and sends a first reminder signal to the user. For example, a signal is sent to the user to cause the instrument light to explode and the vehicle computer to alarm, reminding the user to drive the vehicle away.

[0079] The first solenoid valve is respectively connected to the fuel cell controller of the hydrogen discharge system, the fuel cell and the first temperature sensor of the hydrogen discharge system ( Figure 2 The temperature sensor 2) is connected.

[0080] According to an embodiment of the present application, the current hydrogen discharge condition is the TPRD activated hydrogen discharge condition, a safety control strategy for the current hydrogen discharge condition is generated according to the vehicle surrounding environment recognition result, and the vehicle is controlled to discharge hydrogen safely based on the safety control strategy, including: generating a second reminder signal according to the hydrogen discharge request signal corresponding to the TPRD activated hydrogen discharge condition, and sending the second reminder signal to the user, and judging whether there is a target obstacle around the vehicle based on the vehicle surrounding environment recognition result; if there is no target obstacle around the vehicle, the hydrogen bottle valve, the pressure reducing valve, the safety valve and the second solenoid valve of the hydrogen discharge system are all in the open state to discharge hydrogen from the vehicle. , otherwise, obtain a second distance between the target obstacle and the vehicle, wherein the second solenoid valve is respectively connected to the safety valve of the hydrogen discharge system, the second temperature sensor and the hydrogen discharge system controller; if the second distance meets the second hydrogen discharge distance threshold, the hydrogen bottle valve, the pressure reducing valve, the safety valve and the second solenoid valve are all controlled to be in an open state to discharge hydrogen from the vehicle, otherwise, determine whether the vehicle meets the active acceleration condition; if the vehicle meets the active acceleration condition, control the vehicle to actively accelerate, and control the hydrogen bottle valve, the pressure reducing valve, the safety valve and the second solenoid valve to be in an open state to discharge hydrogen from the vehicle, otherwise, re-acquire the second distance between the target obstacle and the vehicle.

[0081] The second hydrogen discharge distance threshold is set by those skilled in the art according to actual test requirements and is not specifically limited here.

[0082] Specifically, if the current hydrogen discharge condition is the TPRD activated hydrogen discharge condition, a safety control strategy for the TPRD activated hydrogen discharge condition is generated according to the vehicle surrounding environment recognition result, and the vehicle is controlled to safely discharge hydrogen based on the safety control strategy for the TPRD activated hydrogen discharge condition.

[0083] Specifically, if Figure 4 As shown, TPRD is activated to send out a hydrogen discharge request signal, and ECU generates a second reminder signal according to the hydrogen discharge request signal corresponding to the TPRD activated hydrogen discharge condition, and sends the second reminder signal to make the instrument light up and the vehicle alarm, reminding the user to leave the cockpit. At the same time, the vehicle surrounding information is collected through the 360-degree panoramic camera to obtain the vehicle surrounding environment recognition result, and the collected vehicle surrounding information is sent to the vehicle control unit ECU to determine whether there is a target obstacle at the rear of the vehicle, such as other vehicles, pedestrians, obstacles and other objects that may hinder hydrogen discharge. If there is no target obstacle around the vehicle, the emergency disposal under the TPRD activation condition is executed, that is, the hydrogen bottle valve, pressure reducing valve, safety valve and second solenoid valve (i.e., the hydrogen discharge system) are controlled. Figure 2The solenoid valves 1) are all in the open state to discharge hydrogen from the vehicle. Otherwise, the second distance between the target obstacle and the vehicle is obtained. If the second distance meets the second hydrogen discharge distance threshold, the hydrogen bottle valve, the pressure reducing valve, the safety valve and the second solenoid valve are all controlled to be in the open state to discharge hydrogen from the vehicle. Otherwise, the ECU determines whether the vehicle meets the active acceleration conditions. If the vehicle meets the active acceleration conditions, the vehicle is controlled to actively accelerate, and the hydrogen bottle valve, the pressure reducing valve, the safety valve and the second solenoid valve are all controlled to be in the open state to discharge hydrogen from the vehicle. Otherwise, the ECU determines again whether the distance meets the safe hydrogen discharge distance requirement, that is, the second distance between the target obstacle and the vehicle is re-obtained.

[0084] The second solenoid valve is respectively connected to the safety valve of the hydrogen exhaust system and the second temperature sensor ( Figure 2 The temperature sensor 1) is connected to the hydrogen discharge system controller.

[0085] It should be noted that emergency response measures when TPRD is activated should include opening the hydrogen bottle valve, pressure reducing valve, safety valve and solenoid valve 1 to ensure that the hydrogen in the hydrogen supply system can be quickly discharged outside the vehicle. At the same time, the vehicle should be able to actively unlock the four doors and, if conditions permit, open the front engine compartment cover and trunk cover to avoid hydrogen leakage and accumulation after a collision between the front engine compartment fuel cell and the hydrogen supply system near the trunk, and open the sunroof to avoid hydrogen leakage and accumulation after a collision in the passenger compartment.

[0086] According to one embodiment of the present application, the current hydrogen discharge condition is a low-pressure exhaust valve activated hydrogen discharge condition, a safety control strategy for the current hydrogen discharge condition is generated according to the vehicle surrounding environment recognition result, and the vehicle is controlled to safely discharge hydrogen based on the safety control strategy, including: based on the vehicle surrounding environment recognition result, judging whether there is a target obstacle around the vehicle; if there is no target obstacle around the vehicle, controlling the second solenoid valve of the hydrogen discharge system to open to discharge hydrogen from the vehicle, otherwise, obtaining a third distance between the target obstacle and the vehicle; if the third distance meets a third hydrogen discharge distance threshold, controlling the second solenoid valve of the hydrogen discharge system to open, and discharge hydrogen from the vehicle, otherwise, obtaining temperature data around the vehicle, and judging whether the temperature data is greater than a second preset temperature threshold; if the temperature data is less than or equal to the second preset temperature threshold, controlling the second solenoid valve to open, and discharge hydrogen from the vehicle, otherwise, judging whether the vehicle meets the active starting condition; if the vehicle meets the active starting condition, controlling the vehicle to start actively, and re-obtaining the vehicle surrounding environment recognition result, otherwise, generating a second hydrogen discharge rejection signal, and sending a third reminder signal to the user.

[0087] Among them, the third hydrogen discharge distance threshold and the second preset temperature threshold can be set by technical personnel in this field according to actual test requirements, and can also be pre-set through vehicle CAE analysis and test simulation, and are not specifically limited here.

[0088] Specifically, if the current hydrogen discharge condition is a low-pressure drain valve activated hydrogen discharge condition, a safety control strategy for the low-pressure drain valve activated hydrogen discharge condition is generated according to the vehicle surrounding environment recognition result, and the vehicle is controlled to safely discharge hydrogen based on the safety control strategy for the low-pressure drain valve activated hydrogen discharge condition.

[0089] Specifically, if Figure 5 As shown, if the current hydrogen discharge condition is the low-pressure drain valve activated hydrogen discharge condition, then the HMS (Hydrogen Management System, hydrogen supply system control system) sends a low-pressure drain valve activated hydrogen discharge request signal based on the low-pressure drain valve activated hydrogen discharge condition, and collects vehicle surrounding information through a 360-degree panoramic camera to obtain a vehicle surrounding environment recognition result, and at the same time sends the collected vehicle surrounding information to the vehicle control unit ECU to determine whether there is a target obstacle at the rear of the vehicle, such as other vehicles, pedestrians, obstacles and other objects that may hinder hydrogen discharge. If there is no target obstacle around the vehicle, the ECU agrees to execute the low-pressure drain valve activation request and controls the second solenoid valve of the hydrogen discharge system to open to discharge hydrogen from the vehicle. Otherwise, the third distance between the target obstacle and the vehicle is obtained. If the third distance meets the third hydrogen discharge distance threshold, the second solenoid valve of the hydrogen discharge system is controlled to open. The valve is opened and hydrogen is discharged from the vehicle. Otherwise, the temperature data around the vehicle collected by the first temperature sensor is obtained and sent to the ECU to determine whether the temperature data is greater than the second preset temperature threshold. If the temperature data is less than or equal to the second preset temperature threshold, the ECU agrees to execute the low-pressure drain valve activation request, controls the second solenoid valve to open, and discharges hydrogen. Otherwise, it is determined whether the vehicle meets the active starting conditions. If the vehicle meets the active starting conditions, the vehicle is controlled to start actively and the vehicle surrounding environment recognition result is re-acquired. Otherwise, the ECU refuses to execute the low-pressure drain valve activation request, generates a second hydrogen discharge rejection signal, and sends a third reminder signal to the user, so that the instrument light explodes and the vehicle computer alarms, reminding the user to leave.

[0090] According to the safety control method of the hydrogen discharge system of the embodiment of the present application, the current hydrogen discharge condition of the vehicle is determined. If a hydrogen discharge request signal corresponding to the current hydrogen discharge condition is received, the vehicle surrounding environment recognition result is obtained based on the hydrogen discharge request signal corresponding to the current hydrogen discharge condition, so as to generate a safety control strategy for the current hydrogen discharge condition based on the vehicle surrounding environment recognition result, and control the vehicle to discharge hydrogen safely based on the safety control strategy. In this way, the problem that improper operation during the hydrogen discharge process is prone to hydrogen accumulation and even explosion accidents due to the lack of intelligent safety detection and control mechanism is solved, and it is difficult to ensure the safety of the hydrogen discharge process in a complex environment. By identifying the hydrogen discharge environment and generating a corresponding safety control strategy when there is a risk of hydrogen discharge, the safety of hydrogen discharge is improved.

[0091] Next, the safety control device of the hydrogen discharge system proposed in the embodiment of the present application is described with reference to the accompanying drawings.

[0092] Figure 6 It is a block diagram of a safety control device for a hydrogen discharge system according to an embodiment of the present application.

[0093] like Figure 6 As shown, the safety control device 10 of the hydrogen discharge system includes: a determination module 100 , an acquisition module 200 and a control module 300 .

[0094] Wherein, the determination module 100 is used to determine the current hydrogen exhaust condition of the vehicle;

[0095] The acquisition module 200 is used to acquire the vehicle surrounding environment recognition result based on the hydrogen discharge request signal corresponding to the current hydrogen discharge working condition if a hydrogen discharge request signal corresponding to the current hydrogen discharge working condition is received;

[0096] The control module 300 is used to generate a safety control strategy for the current hydrogen discharge condition according to the vehicle surrounding environment identification result, and control the vehicle to discharge hydrogen safely based on the safety control strategy.

[0097] According to one embodiment of the present application, the hydrogen discharge conditions of the vehicle include a hydrogen discharge condition with purge, a hydrogen discharge condition with TPRD activation, and a hydrogen discharge condition with low-pressure drain valve activation.

[0098] According to one embodiment of the present application, the control module 300 includes:

[0099] A first judgment unit, used to judge whether there is a target obstacle around the vehicle based on the recognition result of the vehicle surrounding environment;

[0100] a first control unit, configured to control a first solenoid valve of the hydrogen discharge system to open and perform a purge action to discharge hydrogen from the vehicle if there is no target obstacle around the vehicle, and otherwise obtain a first distance between the target obstacle and the vehicle, wherein the first solenoid valve is respectively connected to a fuel cell controller, a fuel cell, and a first temperature sensor of the hydrogen discharge system;

[0101] a second judgment unit, configured to control the first solenoid valve to open and perform a purge action to discharge hydrogen from the vehicle if the first distance satisfies a first hydrogen discharge distance threshold, and otherwise, obtain temperature data around the vehicle and determine whether the temperature data is greater than a first preset temperature threshold;

[0102] A third judgment unit is used to control the first solenoid valve to open and perform a purge action to exhaust hydrogen from the vehicle if the temperature data is less than or equal to a first preset temperature threshold, otherwise, to judge whether the vehicle meets the active starting condition;

[0103] The second control unit is used to control the vehicle to actively start if the vehicle meets the active starting conditions and re-acquire the vehicle surrounding environment recognition result; otherwise, generate a first hydrogen discharge rejection signal and send a first reminder signal to the user.

[0104] According to one embodiment of the present application, the control module 300 includes:

[0105] A fourth judgment unit is used to generate a second reminder signal according to the hydrogen discharge request signal corresponding to the TPRD activation hydrogen discharge condition, send the second reminder signal to the user, and judge whether there is a target obstacle around the vehicle based on the vehicle surrounding environment recognition result;

[0106] A first acquisition unit is used to control the hydrogen bottle valve, the pressure reducing valve, the safety valve and the second solenoid valve of the hydrogen discharge system to be in an open state to discharge hydrogen from the vehicle if there is no target obstacle around the vehicle; otherwise, obtain a second distance between the target obstacle and the vehicle, wherein the second solenoid valve is respectively connected to the safety valve, the second temperature sensor and the hydrogen discharge system controller of the hydrogen discharge system;

[0107] a fifth judgment unit, configured to control the hydrogen bottle valve, the pressure reducing valve, the safety valve and the second solenoid valve to be in an open state to discharge hydrogen from the vehicle if the second distance meets a second hydrogen discharge distance threshold, and otherwise, to judge whether the vehicle meets an active acceleration condition;

[0108] The third control unit is used to control the vehicle to actively accelerate if the vehicle meets the active acceleration conditions, and control the hydrogen bottle valve, the pressure reducing valve, the safety valve and the second solenoid valve to be in an open state to discharge hydrogen from the vehicle; otherwise, re-obtain the second distance between the target obstacle and the vehicle.

[0109] According to one embodiment of the present application, the control module 300 includes:

[0110] A sixth judgment unit, used to judge whether there is a target obstacle around the vehicle based on the vehicle surrounding environment recognition result;

[0111] a fourth control unit, configured to control the second solenoid valve of the hydrogen discharge system to open to discharge hydrogen from the vehicle if there is no target obstacle around the vehicle, and otherwise, to obtain a third distance between the target obstacle and the vehicle;

[0112] a seventh judgment unit, configured to control the second solenoid valve of the hydrogen discharge system to open and discharge hydrogen from the vehicle if the third distance satisfies a third hydrogen discharge distance threshold, and otherwise, obtain temperature data around the vehicle and judge whether the temperature data is greater than a second preset temperature threshold;

[0113] an eighth judgment unit, configured to control the second solenoid valve to open and discharge hydrogen from the vehicle if the temperature data is less than or equal to a second preset temperature threshold, and otherwise, to judge whether the vehicle meets an active starting condition;

[0114] The second acquisition unit is used to control the vehicle to actively start if the vehicle meets the active starting condition and re-acquire the vehicle surrounding environment recognition result; otherwise, generate a second hydrogen discharge rejection signal and send a third reminder signal to the user.

[0115] According to the safety control device of the hydrogen discharge system of the embodiment of the present application, the current hydrogen discharge condition of the vehicle is determined. If a hydrogen discharge request signal corresponding to the current hydrogen discharge condition is received, the vehicle surrounding environment recognition result is obtained based on the hydrogen discharge request signal corresponding to the current hydrogen discharge condition, so as to generate a safety control strategy for the current hydrogen discharge condition based on the vehicle surrounding environment recognition result, and control the vehicle to discharge hydrogen safely based on the safety control strategy. In this way, the problem that improper operation during the hydrogen discharge process is prone to hydrogen accumulation and even explosion accidents due to the lack of intelligent safety detection and control mechanism is solved, and it is difficult to ensure the safety of the hydrogen discharge process in a complex environment. By identifying the hydrogen discharge environment and generating a corresponding safety control strategy when there is a risk of hydrogen discharge, the safety of hydrogen discharge is improved.

[0116] Figure 7 A schematic diagram of the structure of a vehicle provided in an embodiment of the present application. The vehicle may include:

[0117] A memory 701 , a processor 702 , and a computer program stored in the memory 701 and executable on the processor 702 .

[0118] When the processor 702 executes the program, the safety control method of the hydrogen discharge system provided in the above embodiment is implemented.

[0119] Furthermore, the vehicle also includes:

[0120] The communication interface 703 is used for communication between the memory 701 and the processor 702 .

[0121] The memory 701 is used to store computer programs that can be executed on the processor 702 .

[0122] The memory 701 may include a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory.

[0123] If the memory 701, the processor 702 and the communication interface 703 are implemented independently, the communication interface 703, the memory 701 and the processor 702 can be connected to each other through a bus and communicate with each other. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 7 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0124] Optionally, in a specific implementation, if the memory 701, the processor 702 and the communication interface 703 are integrated on a chip, the memory 701, the processor 702 and the communication interface 703 can communicate with each other through an internal interface.

[0125] The processor 702 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application.

[0126] This embodiment also provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the safety control method of the hydrogen discharge system as described above is implemented.

[0127] This embodiment also provides a computer program product, including a computer program, which is executed to implement the safety control method of the hydrogen discharge system of the above embodiment.

[0128] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or N embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0129] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0130] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.

[0131] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purpose of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or N wirings (electronic devices), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), a fiber optic device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or otherwise processing in a suitable manner if necessary, and then stored in a computer memory.

[0132] It should be understood that the various parts of the present application can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiment, the N steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0133] A person skilled in the art may understand that all or part of the steps in the above-mentioned embodiment method may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0134] In addition, each functional unit in each embodiment of the present application may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0135] The storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, etc. Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. A person of ordinary skill in the art may change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A safety control method for a hydrogen discharge system, characterized in that: The following steps are involved: Determine the current hydrogen exhaust condition of the vehicle; If a hydrogen discharge request signal corresponding to the current hydrogen discharge operating condition is received, obtaining a vehicle surrounding environment recognition result based on the hydrogen discharge request signal corresponding to the current hydrogen discharge operating condition; A safety control strategy for the current hydrogen discharge condition is generated according to the vehicle surrounding environment recognition result, and the vehicle is controlled to discharge hydrogen safely based on the safety control strategy.

2. The method according to claim 1, characterized in that: The hydrogen discharge working conditions of the vehicle include a purge hydrogen discharge working condition, a TPRD activated hydrogen discharge working condition, and a low-pressure drain valve activated hydrogen discharge working condition.

3. The method according to claim 2, characterized in that The current hydrogen discharge condition is the hydrogen purge condition, generating a safety control strategy for the current hydrogen discharge condition according to the vehicle surrounding environment recognition result, and controlling the vehicle to safely discharge hydrogen based on the safety control strategy, including: Based on the vehicle surrounding environment recognition result, determining whether there is a target obstacle around the vehicle; If the target obstacle does not exist around the vehicle, the first solenoid valve of the hydrogen discharge system is controlled to open and perform a purge action to discharge hydrogen from the vehicle; otherwise, a first distance between the target obstacle and the vehicle is obtained, wherein the first solenoid valve is respectively connected to a fuel cell controller, a fuel cell and a first temperature sensor of the hydrogen discharge system; If the first distance satisfies a first hydrogen discharge distance threshold, the first solenoid valve is controlled to open and a purge action is performed to discharge hydrogen from the vehicle; otherwise, temperature data around the vehicle is obtained, and it is determined whether the temperature data is greater than a first preset temperature threshold; If the temperature data is less than or equal to the first preset temperature threshold, the first solenoid valve is controlled to open and a purge action is performed to discharge hydrogen from the vehicle; otherwise, it is determined whether the vehicle meets an active starting condition; If the vehicle meets the active starting condition, the vehicle is controlled to start actively and the vehicle surrounding environment recognition result is reacquired; otherwise, a first hydrogen discharge rejection signal is generated and a first reminder signal is sent to the user.

4. The method according to claim 2, characterized in that: The current hydrogen discharge condition is the TPRD activated hydrogen discharge condition, generating a safety control strategy for the current hydrogen discharge condition according to the vehicle surrounding environment recognition result, and controlling the vehicle to discharge hydrogen safely based on the safety control strategy, including: generating a second reminder signal according to the hydrogen discharge request signal corresponding to the TPRD activation hydrogen discharge condition, and sending the second reminder signal to the user, and judging whether there is a target obstacle around the vehicle based on the vehicle surrounding environment recognition result; If the target obstacle does not exist around the vehicle, the hydrogen bottle valve, the pressure reducing valve, the safety valve and the second solenoid valve of the hydrogen discharge system are controlled to be in an open state to discharge hydrogen from the vehicle; otherwise, a second distance between the target obstacle and the vehicle is obtained, wherein the second solenoid valve is respectively connected to the safety valve, the second temperature sensor and the hydrogen discharge system controller of the hydrogen discharge system; If the second distance meets a second hydrogen discharge distance threshold, the hydrogen bottle valve, the pressure reducing valve, the safety valve and the second solenoid valve are all controlled to be in an open state to discharge hydrogen from the vehicle; otherwise, it is determined whether the vehicle meets an active acceleration condition; If the vehicle meets the active acceleration condition, the vehicle is controlled to perform active acceleration, and the hydrogen bottle valve, the pressure reducing valve, the safety valve and the second solenoid valve are all controlled to be in an open state to discharge hydrogen from the vehicle; otherwise, the second distance between the target obstacle and the vehicle is reacquired.

5. The method according to claim 2, characterized in that: The current hydrogen discharge working condition is a hydrogen discharge working condition in which the low-pressure drain valve activates hydrogen discharge. The safety control strategy for the current hydrogen discharge working condition is generated according to the vehicle surrounding environment recognition result, and the vehicle is controlled to discharge hydrogen safely based on the safety control strategy, including: Based on the vehicle surrounding environment recognition result, determining whether there is a target obstacle around the vehicle; If the target obstacle does not exist around the vehicle, the second solenoid valve of the hydrogen discharge system is controlled to open to discharge hydrogen from the vehicle; otherwise, a third distance between the target obstacle and the vehicle is obtained; If the third distance satisfies a third hydrogen discharge distance threshold, the second solenoid valve of the hydrogen discharge system is controlled to open, and hydrogen is discharged from the vehicle; otherwise, temperature data around the vehicle is obtained, and it is determined whether the temperature data is greater than a second preset temperature threshold; If the temperature data is less than or equal to the second preset temperature threshold, the second solenoid valve is controlled to open and hydrogen is discharged from the vehicle; otherwise, it is determined whether the vehicle meets the active starting condition; If the vehicle meets the active starting condition, the vehicle is controlled to start actively and the vehicle surrounding environment recognition result is reacquired; otherwise, a second hydrogen discharge rejection signal is generated and a third reminder signal is sent to the user.

6. A safety control device for a hydrogen discharge system, characterized in that: include: A determination module, used to determine a current hydrogen exhaust condition of the vehicle; an acquisition module, configured to acquire a vehicle surrounding environment recognition result based on the hydrogen discharge request signal corresponding to the current hydrogen discharge working condition if a hydrogen discharge request signal corresponding to the current hydrogen discharge working condition is received; A control module is used to generate a safety control strategy for the current hydrogen discharge condition according to the vehicle surrounding environment identification result, and control the vehicle to discharge hydrogen safely based on the safety control strategy.

7. The device according to claim 6, characterized in that The hydrogen discharge working conditions of the vehicle include a purge hydrogen discharge working condition, a TPRD activated hydrogen discharge working condition, and a low-pressure drain valve activated hydrogen discharge working condition.

8. The device according to claim 7, characterized in that The control module comprises: A first judgment unit, configured to judge whether there is a target obstacle around the vehicle based on the vehicle surrounding environment recognition result; a first control unit, configured to control a first solenoid valve of a hydrogen discharge system to open and perform a purge action to discharge hydrogen from the vehicle if the target obstacle does not exist around the vehicle, and otherwise obtain a first distance between the target obstacle and the vehicle, wherein the first solenoid valve is respectively connected to a fuel cell controller, a fuel cell and a first temperature sensor of the hydrogen discharge system; a second judgment unit, configured to control the first solenoid valve to open and perform a purge action to discharge hydrogen from the vehicle if the first distance satisfies a first hydrogen discharge distance threshold, and otherwise, obtain temperature data around the vehicle and judge whether the temperature data is greater than a first preset temperature threshold; a third judgment unit, configured to control the first solenoid valve to open and perform a purge action to discharge hydrogen from the vehicle if the temperature data is less than or equal to the first preset temperature threshold, and otherwise, to judge whether the vehicle meets an active starting condition; The second control unit is used to control the vehicle to actively start if the vehicle meets the active starting condition and re-acquire the vehicle surrounding environment recognition result; otherwise, generate a first hydrogen discharge rejection signal and send a first reminder signal to the user.

9. A vehicle, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the safety control method for the hydrogen discharge system according to any one of claims 1 to 5.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: The program is executed by a processor to implement the safety control method for a hydrogen discharge system as described in any one of claims 1 to 5.

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