Fire suppression device, fire suppression system and vehicle

Abstract

The invention discloses a fire suppression device, a fire suppression system and a vehicle, relates to the technical field of vehicle fire fighting, and is used for performing fire suppression control on fire hazard areas. The fire suppression device comprises a pressure container and at least one spray head, the pressure container is communicated with the at least one spray head through a pipeline, the pipeline corresponding to each spray head in the at least one spray head is provided with a control valve, the at least one spray head is arranged in a fire hazard area on the vehicle, and a fire extinguishing agent is stored in the pressure container. On the basis, the pressure container is used for receiving a first control signal from the controller and spraying out a fire extinguishing agent; the control valve is used for receiving a second control signal from the controller and opening a hollow channel of a pipeline where the control valve is located, so that the fire extinguishing agent is sprayed in a fire hazard area, the inerting concentration of the fire hazard area is improved, fire suppression control is conducted on the fire hazard area, the vehicle is prevented from being burnt, and the vehicle explosion risk is avoided; therefore, the safety of vehicles and personnel is guaranteed.

Description

Technical Field

[0001] This application relates to the field of vehicle fire protection technology, and in particular to a fire suppression device, fire suppression system and vehicle. Background Technology

[0002] With the widespread use of vehicles, they have become a daily mode of transportation, making the management of vehicle fire hazards particularly important. Taking battery thermal runaway as an example, thermal runaway refers to the process by which the battery's internal chain reaction causes a rapid rise in temperature, ultimately leading to combustion or explosion. This means that if a battery experiences thermal runaway, it poses a fire hazard, thereby affecting vehicle safety.

[0003] Currently, when a vehicle has a fire hazard, it is impossible to effectively control the area where the fire hazard may occur. This means that the vehicle still has the risk of fire and explosion. Summary of the Invention

[0004] This application provides a fire suppression device, a fire suppression system, and a vehicle for fire suppression control in areas with potential fire hazards, thereby reducing the risk of vehicle fire and explosion.

[0005] Firstly, this application proposes a fire suppression device for use in a vehicle. The fire suppression device includes a pressure vessel and at least one nozzle. The pressure vessel and the at least one nozzle are connected via a pipe. Each nozzle has a corresponding pipe equipped with a control valve. The at least one nozzle is positioned in a fire hazard area on the vehicle. The pressure vessel contains a fire extinguishing agent. Based on this, the pressure vessel receives a first control signal from a controller to discharge the fire extinguishing agent; the first control signal instructs the discharge of the fire extinguishing agent. The control valve receives a second control signal from the controller to open the hollow passage of the pipe containing the control valve; the second control signal instructs the opening of the control valve.

[0006] Based on the above device, the extinguishing agent sprayed from the pressure vessel is ejected from the nozzle through pipelines, allowing it to be sprayed onto the fire hazard area. This increases the inerting concentration in the fire hazard area, suppressing the fire and preventing vehicle fires, thus avoiding the risk of vehicle explosion and ensuring the safety of vehicles and personnel. Furthermore, a control valve can be used to open only the hollow channel of the corresponding pipeline, enabling targeted and precise release to specific fire hazard areas.

[0007] Optionally, the controller mentioned above can be a vehicle control unit (VCU), vehicle information unit (VIU), or vehicle domain controller (VDC) or other device that implements vehicle control; the controller can also be a smart driving domain control unit or mobile data center (MDC) or other device used to implement smart driving or assisted driving functions, and its specific form is not limited.

[0008] One possible design for a pressure vessel includes, but is not limited to, the following two structures.

[0009] Structure 1: The pressure vessel is an independent, integral structure.

[0010] Using Structure 1, the pressure vessel can be flexibly installed on the vehicle as an independent structure. For example, the pressure vessel can be placed in the center of multiple fire hazard areas, or in a location close to areas of multiple fire hazard areas where fires are likely to occur, thereby ensuring the rationality and reliability of the pressure vessel installation.

[0011] Optionally, the pressure vessel of this structure is installed in the pressure storage device of the vehicle's air suspension. This pressure storage device can be a device for supplying air to the vehicle's suspension and other mechanisms; for example, the pressure storage device can be an air tank.

[0012] This design allows for the reuse of available space next to the pressure storage device, eliminating the need to allocate additional space for the pressure vessel in other locations on the vehicle. This saves vehicle space and facilitates management and maintenance.

[0013] Optionally, the pressure vessel is connected to the pressure storage device; wherein the connection method between the pressure vessel and the pressure storage device includes one or more of the following: welding, bolting, riveting, and bonding.

[0014] This design ensures the stability and reliability of the pressure vessel and pressure storage device, preventing the pressure vessel from falling off or being damaged in scenarios such as high-speed vehicle travel, sudden braking, or accidents.

[0015] Optionally, the pressure vessel of this structure is located in the chassis of the vehicle.

[0016] The design takes into account that the vehicle's power battery pack is generally located in the vehicle's chassis, so that the pressure vessel is closer to the power battery pack, in order to ensure the timeliness and reliability of fire suppression control of the power battery.

[0017] Optionally, the fire suppression device also includes a housing, with a pressure vessel disposed inside the housing, which is located at the chassis position of the vehicle.

[0018] This design secures the pressure vessel within an outer casing, which is fixed to the vehicle's chassis, thus protecting the pressure vessel from damage. Furthermore, the stability of the pressure vessel can be ensured by incorporating cushioning devices within the casing.

[0019] Optionally, the housing includes a pipe interface, a communication interface, and a pressure display; wherein, the pipe interface is used to allow a pipe to pass through the housing and communicate with the pressure vessel, the communication interface is used to connect to the aforementioned controller, and the pressure display is used to display the pressure inside the pressure vessel.

[0020] Structure 2: The pressure vessel and the pressure storage device of the vehicle's air suspension are integrated into one structure.

[0021] Using Structure 2 eliminates the need to allocate space for the pressure vessel on the vehicle, thus saving space. Furthermore, it simplifies the overall structure by eliminating the need to consider the connection method between the pressure vessel and the pressure storage device.

[0022] Optionally, the integrated structure divides the inner cavity of the pressure vessel and the inner cavity of the pressure storage device by a partition.

[0023] With this design, the partition is equivalent to the containment chamber structure shared by the pressure vessel and the pressure storage device, making the integrated structure more compact and further saving space.

[0024] One possible design is that the pressure vessel is equipped with a solenoid valve and a head valve at the bottle opening. One end of the head valve is connected to the extinguishing agent stored inside the pressure vessel via a siphon tube, and the other end of the head valve is connected to a pipeline. The solenoid valve is specifically used to: respond to a first control signal to control the opening of the head valve.

[0025] In this design, the pressure vessel also contains high-pressure inert gas. Therefore, when the cylinder valve is opened, the extinguishing agent in the pressure vessel, based on the action of the high-pressure inert gas, flows sequentially from the siphon pipe, cylinder valve, and pipeline to the nozzle, and then the extinguishing agent is sprayed out from the nozzle and sprinkled on the fire hazard area.

[0026] One possible design includes fire hazard areas including one or more of the following: the inside of the power battery pack, the front compartment of the vehicle, the rear compartment of the vehicle, and the cell casing.

[0027] In this design, the fire hazard area can be designed according to factors such as the type and location of components in the vehicle. This allows for accurate and comprehensive fire suppression control of components in the vehicle that are prone to fire, ensuring the accuracy and specificity of the fire suppression control.

[0028] One possible design is that each of at least one nozzle is equipped with a one-way valve.

[0029] In this design, the one-way valve can prevent the extinguishing agent from flowing back, ensuring the reliability and stability of the pressure vessel.

[0030] In one possible design, the solenoid valve of the pressure vessel is connected to the controller via a low-pressure wiring harness, and the control valve is also connected to the controller via a low-pressure wiring harness.

[0031] In this design, the use of low-voltage wiring harnesses can ensure the stability and security of communication.

[0032] In one possible design, the pressure vessel is also used to receive a third control signal from the controller to stop the discharge of the extinguishing agent; wherein the third control signal is used to indicate the cessation of the discharge of the extinguishing agent.

[0033] In one possible design, the control valve is also used to receive a fourth control signal from the controller to close the hollow passage of the pipeline in which the control valve is located; wherein the fourth control signal is used to instruct the control valve to be closed.

[0034] This design can prevent pressure vessels from excessively releasing extinguishing agent.

[0035] One possible design is that the pressure vessel stores a high-pressure inert gas, which includes one or more of the following: nitrogen, helium, neon, argon, and krypton.

[0036] One possible design includes one or more of the following extinguishing agents: perfluorohexanone and heptafluoropropane.

[0037] Secondly, this application proposes a fire suppression system, which includes a controller and the fire suppression device described in the first aspect above. The controller is connected to the fire suppression device via a low-voltage wiring harness. Based on this system architecture, the controller is used to detect potential fire hazard areas on the vehicle. When it determines that the potential fire hazard area meets the fire suppression conditions, it sends a first control signal and a second control signal to the fire suppression device. The first control signal is used to instruct the spraying of extinguishing agent, and the second control signal is used to instruct the opening of a control valve in the fire suppression device; the fire suppression device is used to spray extinguishing agent towards the potential fire hazard area.

[0038] The controller can be a vehicle control unit (VCU), vehicle information unit (VIU), or vehicle domain controller (VDC) or other device that implements vehicle control; the controller can also be a smart driving domain control unit or mobile data center (MDC) or other device that implements smart driving or driver assistance functions, and its specific form is not limited.

[0039] One possible design involves an area with a fire hazard zone including the interior of the power battery pack. Based on this, the controller is specifically used to: acquire thermal runaway parameters inside the power battery pack, and determine that the interior of the power battery pack meets fire suppression conditions when the thermal runaway parameters meet preset conditions. The thermal runaway parameters include one or more of the following: voltage, current, temperature, gas pressure, temperature rise rate, and flammable gas concentration.

[0040] In this design, the fire suppression device can be activated to reduce the temperature of the power battery pack when the power battery pack experiences thermal runaway (i.e., when the thermal runaway parameter exceeds the reference threshold) by using thermal runaway parameters. This prevents open flames from appearing inside the power battery pack and enables fire suppression control of the power battery pack even when no open flames appear inside the power battery pack.

[0041] One possible design includes one or more of the following preset conditions: voltage greater than voltage threshold, current greater than current threshold, temperature greater than temperature threshold, gas pressure greater than gas pressure threshold, temperature rise rate greater than rate threshold, and combustible gas concentration greater than concentration threshold.

[0042] In this design, a single parameter can be used to determine whether preset conditions are met, thereby improving the efficiency of fire suppression decisions. Alternatively, multiple parameters can be used to determine whether preset conditions are met, thereby improving the accuracy of fire suppression decisions.

[0043] One possible design includes areas with potential fire hazards, excluding the interior of the power battery pack. Based on this, the controller is specifically used to: acquire detection information from other areas; and, when the detection information determines that other areas pose a fire risk, determine that those areas meet fire suppression conditions. The detection information includes one or more of the following: visual images, temperature, and infrared radiation energy.

[0044] In this design, when an open flame is detected in a fire hazard area, a fire suppression device is activated to suppress the open flame in the fire hazard area, thereby ensuring the accuracy of fire suppression control.

[0045] In one possible design, the controller is also used to send a third and a fourth control signal to the fire suppression device when it is determined that the fire hazard area does not meet the fire suppression conditions. The third control signal instructs the dispensing of extinguishing agent to stop, and the fourth control signal instructs the control valve to close. Specifically, the fire suppression device is used to stop dispensing extinguishing agent into the fire hazard area.

[0046] This design can prevent excessive discharge of extinguishing agent from pressure vessels.

[0047] In one possible design, the fire suppression system also includes an active activation device connected to the fire suppression device via a low-voltage wiring harness. Specifically, the active activation device receives user input and sends a first control signal and a second control signal to the fire suppression device. The first control signal instructs the release of the extinguishing agent, and the second control signal instructs the opening of the control valve. Alternatively, the active activation device receives user input and sends a third and a fourth control signal to the fire suppression device. The third control signal instructs the cessation of extinguishing agent release, and the fourth control signal instructs the closing of the control valve.

[0048] This design provides active fire suppression control for areas with potential fire hazards, ensuring fire suppression control even when the controller is unable to control the fire suppression device, thus further guaranteeing the reliability of fire suppression control.

[0049] In one possible design, the controller is also used to report thermal runaway information or fire risk warning information of the power battery pack to the user when the fire suppression conditions are met in the fire hazard area.

[0050] This design enables users to be aware of potential fire hazards in a timely manner, allowing them to take appropriate measures as early as possible.

[0051] One possible design is that the controller can also be used to power down the battery pack or the entire vehicle when fire suppression conditions are met in areas with potential fire hazards.

[0052] This design can avoid risks such as electrical leakage and short circuits caused by fire hazards, prevent the fire hazard from spreading, and prevent other potential hazards from arising.

[0053] In one possible design, the controller is also used to determine whether there are passengers in the passenger compartment when the fire suppression conditions are met in the fire hazard area, and to issue a prompt message to remind passengers to evacuate if there are passengers in the passenger compartment.

[0054] This design can remind passengers to move away from the vehicle in time to ensure their safety.

[0055] Thirdly, this application proposes a fire suppression control method, which is applied to the controller mentioned in the second aspect above, the controller being connected to the fire suppression device via a low-voltage wiring harness. Based on this, the method includes:

[0056] The controller periodically detects potential fire hazard areas on the vehicle.

[0057] When the controller determines that the fire hazard area meets the fire suppression conditions, it sends a first control signal and a second control signal to the fire suppression device. The first control signal and the second control signal are used by the fire suppression device to spray extinguishing agent into the fire hazard area.

[0058] One possible design includes areas with potential fire hazards, such as the interior of the battery pack. Based on this, the controller periodically detects potential fire hazard areas on the vehicle, specifically including:

[0059] The thermal runaway parameters inside the power battery pack are periodically acquired from the Battery Management System (BMS). The thermal runaway parameters include one or more of the following: voltage, current, temperature, gas pressure, temperature rise rate, and combustible gas concentration.

[0060] Determining that the fire hazard area meets the fire suppression conditions specifically includes: when the thermal runaway parameters meet preset conditions, determining that the interior of the power battery pack meets the fire suppression conditions. These preset conditions include one or more of the following: voltage greater than a voltage threshold, current greater than a current threshold, temperature greater than a temperature threshold, gas pressure greater than a gas pressure threshold, temperature rise rate greater than a rate threshold, and combustible gas concentration greater than a concentration threshold.

[0061] One possible design includes fire hazard areas encompassing areas other than the interior of the battery pack; based on this, the controller periodically detects fire hazard areas on the vehicle, specifically including:

[0062] Acquire detection information from other areas, including one or more of the following: visual images, temperature, and infrared radiation energy;

[0063] Determining that an area with a fire hazard meets the fire suppression conditions specifically includes: when other areas are determined to have a fire risk based on detection information, determining that those other areas meet the fire suppression conditions.

[0064] One possible design, the method further includes: when the controller determines that the fire hazard area does not meet the fire suppression conditions, sending a third control signal and a fourth control signal to the fire suppression device, the third control signal and the fourth control signal being used by the fire suppression device to stop spraying extinguishing agent into the fire hazard area.

[0065] One possible design, the method further includes: when the controller determines that the fire hazard area meets the fire suppression conditions, it reports thermal runaway information or fire risk warning information of the power battery pack to the user.

[0066] One possible design, the method also includes: when the controller determines that the fire hazard area meets the fire suppression conditions, it controls the power battery pack or the whole vehicle to shut down.

[0067] One possible design, the method further includes: when the controller determines that the fire hazard area meets the fire suppression conditions, it determines whether there are passengers in the passenger compartment, and if there are passengers in the passenger compartment, it issues a prompt message to remind passengers to evacuate.

[0068] Fourthly, this application provides a vehicle that includes a fire suppression device as described in the first aspect above, or a fire suppression system as described in the second aspect above; wherein the fire suppression system includes a controller for performing the method of any of the third aspects above.

[0069] Fifthly, this application provides a computer-readable storage medium storing a computer program that, when run on a computer, causes the computer to perform any of the methods described in the third aspect above.

[0070] Sixthly, this application provides a computer program product that, when run on a computer, causes the computer to perform any of the methods described in the third aspect above.

[0071] In a seventh aspect, this application provides a chip, which includes a processor and a data interface. The processor reads instructions stored in a memory through the data interface and executes the method of any one of the third aspects above.

[0072] In one possible design, the chip may also include a memory storing instructions, and a processor for executing the instructions stored in the memory. When the instructions are executed, the processor uses the method described in any of the third aspects above.

[0073] Based on the implementations provided in the above aspects, this application can be further combined to provide more implementations.

[0074] The technical effects that can be achieved in any of the third to seventh aspects mentioned above can be referred to the descriptions of the technical effects that can be achieved in the first or second aspects mentioned above, and the repetitions will not be discussed. Attached Figure Description

[0075] Figure 1 A schematic diagram illustrating an application scenario provided in an embodiment of this application;

[0076] Figure 2 This is a schematic diagram of the structure of a fire suppression system provided in an embodiment of this application;

[0077] Figure 3 A schematic flowchart of a fire suppression control method provided in an embodiment of this application;

[0078] Figure 4A flowchart illustrating a method for detecting potential fire hazard areas provided in Implementation Plan 1;

[0079] Figure 5 A flowchart illustrating a method for detecting potential fire hazard areas provided for implementation scheme two;

[0080] Figure 6 A schematic diagram of a pressure vessel provided for structure one;

[0081] Figure 7 A schematic diagram of another pressure vessel provided for Structure 1;

[0082] Figure 8 A schematic diagram of a pressure vessel provided for Structure 2;

[0083] Figure 9 A structural schematic diagram of another fire suppression system provided for implementation scheme one;

[0084] Figure 10 A schematic diagram of an execution device provided in an embodiment of this application;

[0085] Figure 11 This is a schematic diagram of another execution device provided in an embodiment of this application. Detailed Implementation

[0086] In recent years, lithium-ion batteries have been widely used in electric bicycles, electric vehicles, power tools, consumer electronics, and energy storage due to their advantages such as high energy density, high power density, low self-discharge, and long lifespan, and have broad market application prospects. However, as power battery packs for mobile devices (such as electric vehicles and electric bicycles), lithium-ion batteries can cause fires under thermal runaway, hindering the development of mobile devices and related fields. Thermal runaway refers to the process in which the battery's internal chain reaction causes a rapid rise in temperature, ultimately leading to combustion or explosion.

[0087] Causes of thermal runaway in power battery packs include, but are not limited to, mechanical abuse, electrical abuse, and thermal abuse. Mechanical abuse refers to mechanical deformation of the power battery pack due to impacts, compression, or punctures, or even partial rupture of the internal separator leading to an internal short circuit. Electrical abuse refers to short circuits caused by external short circuits, overcharging, over-discharging, high-current charging, or low-temperature charging. Thermal abuse refers to excessively high battery temperatures caused by heating or exposure to direct sunlight, leading to damage to the internal separator and short circuits between the positive and negative terminals.

[0088] It can be seen that under the influence of mechanical abuse, electrical abuse, and thermal abuse, a power battery pack will generate a large amount of high-temperature electrolyte vapor after thermal runaway, thus creating a fire hazard. Furthermore, power battery pack fires generally originate inside the battery modules, making rescue difficult and almost impossible to extinguish effectively; the flames will also shoot outwards from inside the battery modules.

[0089] With the increasing prevalence of vehicles, they have become a daily mode of transportation, especially electric vehicles. Therefore, managing fire hazards caused by battery thermal runaway, as mentioned above, is particularly important. It should be noted that besides battery thermal runaway, other components in the vehicle can also pose a fire hazard if their temperature becomes too high. For example, an overheated engine can also lead to a fire.

[0090] Currently, when a vehicle has a fire hazard, the affected area cannot be effectively controlled, which leads to the vehicle having a fire hazard and an explosion risk.

[0091] In view of this, the embodiments of this application provide a fire suppression control scheme, specifically designing a fire suppression device, a fire suppression system and a fire suppression control method, which aims to spray fire extinguishing agent on the fire hazard area of ​​the vehicle, so as to suppress and control the fire in the fire hazard area, prevent the vehicle from catching fire and avoid the risk of vehicle explosion, thereby ensuring the safety of the vehicle and personnel.

[0092] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0093] In the following embodiments, the terminology used is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used in the specification and appended claims of this application, the singular expressions “a,” “an,” “the,” “the,” “the,” and “this” are intended to also include expressions such as “one or more,” unless the context clearly indicates otherwise. It should also be understood that in the embodiments of this application, “one or more” means one, two, or more; “and / or” describes the relationship between related objects, indicating that three relationships may exist; for example, A and / or B can represent: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. The character “ / ” generally indicates that the preceding and following related objects are in an “or” relationship.

[0094] In the description of this specification, references to "one embodiment" or "some embodiments," etc., mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification, do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0095] The "multiple" mentioned in the embodiments of this application refers to two or more. It should be noted that in the description of the embodiments of this application, terms such as "first" and "second" are used only for the purpose of distinguishing descriptions and should not be construed as indicating or implying relative importance, nor should they be construed as indicating or implying order.

[0096] The fire suppression device provided in this application can be applied to vehicles, such as: vehicles (e.g., autonomous vehicles, intelligent vehicles, electric vehicles, buses, digital vehicles or buses, etc.), aircraft (e.g., passenger aircraft, cargo aircraft, helicopters, agricultural machinery, forest protection aircraft, aerial survey aircraft, medical rescue aircraft, sightseeing aircraft or weather aircraft, etc.), engineering vehicles (e.g., cranes, water trucks, road rollers, excavators, bulldozers, etc.).

[0097] For example, taking the application of a fire suppression device in a vehicle as an example, please refer to [link to relevant documentation]. Figure 1 , Figure 1 This is a schematic diagram of an application scenario provided by an embodiment of this application. The fire suppression device 100 is installed on a vehicle and is used to suppress fire in areas of potential fire hazard on the vehicle (shown as the power battery pack).

[0098] In this embodiment, the fire hazard area can be defined based on the distribution of components on the vehicle. For example, the fire hazard area includes the area where the power battery pack is located and the area where the engine is located (such as the front compartment area of ​​the vehicle). This allows for accurate and comprehensive fire suppression control of easily flammable components in the vehicle, ensuring the accuracy and targeted nature of the fire suppression control. It should be noted that this application does not limit the division or number of fire hazard areas.

[0099] Optionally, fire hazard areas include one or more of the following: the inside of the power battery pack, the front compartment of the vehicle, the rear compartment of the vehicle, and the cell casing.

[0100] For further details, please refer to Figure 2 , Figure 2This is a schematic diagram of a fire suppression system provided in an embodiment of this application. It includes a fire suppression device 100 and a controller 200.

[0101] The following is a detailed introduction to each component of the fire suppression system.

[0102] The fire suppression device 100 includes a pressure vessel 101 and at least one nozzle 102 (two are shown in the illustration, but the number of nozzles 102 is not limited here). The pressure vessel 101 and the at least one nozzle 102 are connected by a pipe 103 (shown as a thick solid line in the illustration). (In other words, one end of the pipe 103 is connected to the pressure vessel 101, and the other end is connected to the nozzle 102). Each nozzle 102 has a control valve 104 installed in the pipe 103 corresponding to it. The at least one nozzle 102 is located in a fire hazard area on the vehicle, and the pressure vessel 101 contains a fire extinguishing agent.

[0103] Optional extinguishing agents include, but are not limited to, perfluorohexanone, heptafluoropropane, and other extinguishing agents. It should be noted that the capacity of the extinguishing agent is designed based on the volume of the potential fire hazard area, such as the power battery pack, as well as factors such as inerting concentration, extinguishing concentration, and residual 103 in the pipeline; this application does not impose any limitations on these factors. Inerting concentration refers to the minimum volume percentage of gaseous extinguishing agent required to inhibit the combustion of flammable substances under specific temperature and pressure conditions; extinguishing concentration refers to the minimum volume percentage of gaseous extinguishing agent required to extinguish a specific fire under standard conditions.

[0104] Optionally, at least two nozzles 102 may correspond to different fire hazard areas, which simplifies the structural complexity of the entire fire suppression device 100 while comprehensively targeting fire hazard areas.

[0105] Optionally, each of at least one nozzle 102 is equipped with a one-way valve. Since the one-way valve prevents backflow of the extinguishing agent, it ensures the reliability and stability of the pressure vessel 101.

[0106] The controller 200 is a device with wireless transceiver capabilities. For example, the controller 200 can be an electronic device (such as an onboard server) installed in a vehicle to enable data communication, information processing, and control functions between the vehicle and external systems. The controller 200 can also be a wireless terminal in autonomous driving. Optionally, the controller 200 can be a vehicle control unit (VCU), vehicle information unit (VIU), or vehicle domain controller (VDC) to implement vehicle control; the controller 200 can also be an onboard terminal. The controller 200 can also be an intelligent driving domain control unit or a mobile data center (MDC) to implement intelligent driving or assisted driving functions. This application does not limit the specific technology or device form used in the controller 200.

[0107] Optionally, the controller 200 and the fire suppression device 100 can be wirelessly connected, communicating via wireless communication. Wireless communication methods include, but are not limited to, any of the following: Bluetooth, radio frequency identification (RFID), ultra-wideband (UWB), Near Link, near field communication (NFC), ZigBee, infrared or wireless fidelity (Wi-Fi), Wi-Fi Aware technology, general short-range communication technology, and other future types of short-range communication technologies. This application does not specifically limit the wireless communication method.

[0108] Optionally, the controller 200 and the fire suppression device 100 are connected via a low-voltage wiring harness. This wiring harness may include a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus. The bus can be categorized as an address bus, data bus, control bus, etc. For ease of representation, Figure 2 The bus is represented by only a thin dashed line, but this does not mean that there is only one bus or one type of bus. Specifically, the solenoid valve of pressure vessel 101 is connected to controller 200 through a low-pressure wiring harness, and control valve 104 is connected to controller 200 through a low-pressure wiring harness.

[0109] Based on the above system structure, the pressure vessel 101 is used to receive a first control signal from the controller 200, and then spray the extinguishing agent; wherein, the first control signal is used to indicate the spraying of the extinguishing agent.

[0110] The control valve 104 is used to receive a second control signal from the controller 200, thereby opening the hollow passage of the pipeline 103 where the control valve 104 is located, so that the extinguishing agent sprayed from the pressure vessel 101 reaches the nozzle corresponding to the control valve 104, and the extinguishing agent is sprayed from the nozzle; wherein, the second control signal is used to instruct the control valve 104 to be opened.

[0111] based on Figure 2 The system structure shown is as follows: Figure 3 This diagram illustrates a flow chart of a fire suppression control method provided in this application. The process is applicable to the aforementioned fire suppression device 100 and controller 200, and further applicable to the pressure vessel 101 and control valve 104 in the fire suppression device 100, as well as the controller 200. The process includes the following steps:

[0112] Step 301: Controller 200 detects potential fire hazard areas on the vehicle.

[0113] Optionally, fire hazard areas include one or more of the following: the inside of the power battery pack, the front compartment of the vehicle, the rear compartment of the vehicle, and the cell casing.

[0114] Step 302: Determine whether the fire hazard area meets the fire suppression conditions; if so, proceed to step 303; otherwise, return to step 301.

[0115] Optionally, this application provides the following implementation schemes for detecting fire hazard areas, depending on the specific fire hazard area.

[0116] Implementation Plan 1: The fire hazard area includes the inside of the power battery pack. Figure 4 The diagram illustrates a method for detecting potential fire hazards provided in Implementation Scheme 1. The process includes the following steps:

[0117] Step 3011: Controller 200 acquires thermal runaway parameters inside the power battery pack collected by the Battery Management System (BMS).

[0118] Optional thermal runaway parameters include one or more of the following: voltage, current, temperature, gas pressure, rate of temperature rise, and concentration of combustible gas.

[0119] Step 3021: When the controller 200 determines that the thermal runaway parameters meet the preset conditions, it determines that the internal conditions of the power battery pack meet the fire suppression conditions.

[0120] Optionally, the preset conditions include one or more of the following: voltage greater than a voltage threshold, current greater than a current threshold, temperature greater than a temperature threshold, gas pressure greater than a gas pressure threshold, temperature rise rate greater than a rate threshold, and combustible gas concentration greater than a concentration threshold. It should be noted that the voltage threshold, current threshold, temperature threshold, gas pressure threshold, rate threshold, and concentration threshold can be values ​​based on empirical thresholds, and this application does not impose specific limitations on them.

[0121] For example, when the controller 200 determines that any parameter exceeds the corresponding threshold (such as the temperature being greater than 50°C, where 50°C is the temperature threshold), it determines that the internal conditions for fire suppression of the power battery pack are met. For example, when the controller determines that the internal temperature of the power battery pack exceeds the corresponding reference threshold (such as 50°C), it determines that the internal conditions for fire suppression of the power battery pack are met.

[0122] For example, when the controller 200 determines that multiple parameters exceed their corresponding thresholds (e.g., temperature greater than 50℃ and combustible gas concentration greater than 10mg / m³), 3 The 10mg / m 3 (The concentration threshold) determines whether the internal conditions of the power battery pack meet the fire suppression requirements.

[0123] It should be noted that there are many more combinations of judgment methods based on the above thermal runaway parameters, which will not be elaborated here. When the internal conditions for fire suppression are met, it can be understood that the power battery pack has experienced thermal runaway.

[0124] Based on Implementation Scheme 1, this application can activate the fire suppression device 100 to reduce the temperature of the power battery pack when it experiences thermal runaway (at which point open flames are generally not present) using thermal runaway parameters. Furthermore, since the nozzle is directly installed inside the power battery pack, the extinguishing agent can directly act on the interior of the power battery pack, thereby preventing open flames from appearing inside and achieving fire suppression control of the power battery pack even when no open flames are present.

[0125] Implementation Plan 2 includes areas with fire hazards other than the inside of the power battery pack (such as the vehicle's front compartment). Figure 5 The diagram illustrates a method for detecting potential fire hazards provided in Implementation Scheme 2. The process includes the following steps:

[0126] Step 3012: The controller 200 acquires detection information from other areas collected by the sensing device.

[0127] Optional sensing devices include, but are not limited to: visual sensors, temperature sensors, and infrared sensors. Correspondingly, the detected information includes one or more of the following: visual images, temperature, and infrared radiation energy.

[0128] Step 3022: When the controller 200 determines that there is a fire risk in other areas based on the detection information, it determines that the other areas meet the fire suppression conditions.

[0129] Optionally, the existence of a fire risk indicates the presence of open flames or smoke in other areas. For example, the controller 200 may determine that there is a fire risk in other areas when it can visually identify flames or smoke; or, the controller 200 may determine that there is a fire risk in other areas when it determines that the temperature is within the range of open flame temperatures; or, the controller 200 may determine that there is a fire risk in other areas when it determines that the infrared radiation energy is within the range of open flame infrared radiation energy or smoke infrared radiation energy. The open flame temperature range, open flame infrared radiation energy range, or smoke infrared radiation energy range can be preset values ​​based on experience, and this application does not impose any restrictions on them.

[0130] Based on Implementation Scheme 2, this application can determine that when an open flame is clearly present in a fire hazard area, the fire suppression device 100 can be activated to suppress the open flame in the fire hazard area, thereby ensuring the accuracy of fire suppression control.

[0131] Step 303: Controller 200 sends a first control signal to pressure vessel 101.

[0132] In this step, the first control signal can be understood as energizing the solenoid valve of the pressure vessel 101, thereby controlling the opening of the bottle head valve of the pressure vessel 101. For details, please refer to the following structural description of the pressure vessel 101.

[0133] Step 304: Controller 200 sends a second control signal to control valve 104.

[0134] In this step, since the control valve 104 corresponds to the fire hazard area, the controller 200 will only send the second control signal to the control valve 104 corresponding to the fire hazard area that meets the fire suppression conditions. As described above... Figure 2 For example, assuming the fire hazard area that meets the fire suppression conditions is fire hazard area 1 (such as inside the power battery pack), then the controller 200 will send a second control signal to the control valve 104 corresponding to fire hazard area 1 (the control valve 104 installed on the uppermost pipe 103 in the figure). The second control signal can be understood as energizing the control valve 104.

[0135] It should be noted that steps 303 and 304 can be performed simultaneously.

[0136] Step 305: Pressure vessel 101 sprays out extinguishing agent.

[0137] Step 306: Control valve 104 opens the hollow passage of the pipeline in which it is located.

[0138] In this step, control valve 104 responds to the second control signal, or in other words, control valve 104 is energized, thereby opening control valve 104 to open the hollow passage of its corresponding pipeline 103. Since control valve 104 corresponds to the fire hazard area, when control valve 104 is open and pressure vessel 101 sprays extinguishing agent, pipeline 103 containing control valve 104 will direct the extinguishing agent to its corresponding nozzle, thereby the nozzle spraying extinguishing agent into the fire hazard area.

[0139] In summary, the extinguishing agent sprayed from pressure vessel 101 can be sprayed onto the fire hazard area through pipeline 103 and nozzle, thereby increasing the inerting concentration in the fire hazard area, suppressing and controlling the fire, preventing vehicle fire and avoiding the risk of vehicle explosion, and thus ensuring the safety of vehicles and personnel.

[0140] In one possible embodiment, after the controller 200 determines that a fire hazard area meeting the fire suppression conditions has been controlled, i.e., when the fire hazard area no longer meets the fire suppression conditions, it can send a third control signal to the pressure vessel 101 and a fourth control signal to the control valve 104. The third control signal is used to instruct the extinguishing agent to be stopped, and the fourth control signal is used to instruct the control valve 104 to be closed. This prevents the pressure vessel 101 from excessively discharging the extinguishing agent.

[0141] The third control signal can be understood as energizing the solenoid valve of pressure vessel 101, thereby controlling the cylinder head valve of pressure vessel 101 to close. For details, please refer to the structural description of pressure vessel 101 below. The fourth control signal can be understood as energizing the control valve 104, thereby closing the control valve 104 to close the hollow passage of its pipeline 103.

[0142] In this embodiment of the application, in order to further ensure personnel safety, the controller 200 may also perform the following measures.

[0143] Measure one: The controller 200 is also used to report thermal runaway information or fire risk warnings of the power battery pack to the user when fire suppression conditions are met in the fire hazard area. For example, it may report "thermal runaway of the power battery pack" to the user. This allows the user to be aware of the fire hazard in a timely manner so that they can take appropriate measures as early as possible. The reporting method can be voice broadcast, prompt tone, text display, icon display, etc., and this application does not restrict this. The warning information can be reported to the user's terminal device (such as a mobile phone) or to in-vehicle equipment (such as a car audio system, in-vehicle display, etc.).

[0144] Secondly, the controller 200 is also used to control the power battery pack or the entire vehicle to shut down when the fire suppression conditions are met in the fire hazard area. For example, it can control the power off of the vehicle's high-voltage wiring harness and the power battery pack to avoid risks such as leakage and short circuits caused by the fire hazard, prevent the fire hazard from spreading, and prevent other hazards from occurring.

[0145] Thirdly, the controller 200 is also used to determine whether there are passengers in the passenger compartment (i.e., the vehicle's seating area) when the fire suppression conditions are met in the fire hazard area, and to issue a warning message to remind passengers to evacuate if passengers are present in the passenger compartment. For example, a voice reminder such as "Power battery pack thermal runaway, please evacuate and stay away from the vehicle as soon as possible" can be issued to remind passengers to leave the vehicle in time to ensure their safety. The reminder methods include, but are not limited to, voice reminders and alarm tone reminders, etc., which are not restricted in this application.

[0146] Optionally, the controller 200 determines whether a passenger exists in the passenger compartment by acquiring sensing information about the passenger compartment and determining whether a passenger exists based on that sensing information. The sensing information can be information collected by sensing devices such as cameras and radar, including visual images and radar signals. This application does not specifically limit the sensing information or methods used to detect passengers.

[0147] In one possible embodiment, depending on the situation, the controller 200 may selectively execute one or more of the above measures. For example, when the vehicle is in motion, the controller 200 may only execute measures one and three to avoid situations where the vehicle cannot move or the doors cannot be opened due to a power outage.

[0148] In one possible embodiment, considering the computing resources of the controller 200, the above measures can be performed simultaneously, or the above measures can be performed in a pre-set execution order according to different situations (i.e., more computing resources can be called to execute measures with priority order in order to improve the execution efficiency and timeliness of the measures).

[0149] For example, if there are no passengers in the passenger compartment, the execution order of the above measures can be: Measure 1, Measure 3, Measure 2, to improve the efficiency and timeliness of implementing Measure 1 and promptly remind users of the fire hazard. If the vehicle is in motion, the execution order of the above measures can be: Measure 2, Measure 3, Measure 1, to improve the efficiency and timeliness of implementing Measure 2 and promptly address the expansion of the fire hazard and the emergence of other hazards. If there are passengers in the passenger compartment and the vehicle is not in motion, the execution order of the above measures can be: Measure 3, Measure 2, Measure 1, to improve the efficiency and timeliness of implementing Measure 3 and promptly remind users to stay away from the vehicle. It should be noted that this application can also set the execution order of the above measures according to more situations, and this application does not limit it here.

[0150] In one possible embodiment, the design of the pressure vessel 101 includes, but is not limited to, the following two structures.

[0151] Structure 1: Pressure vessel 101 is an independent integral structure.

[0152] Using structure one, the pressure vessel 101 can be flexibly installed on the vehicle as an independent structure. For example, the pressure vessel 101 can be placed in the center of multiple fire hazard areas, or it can be placed close to areas in multiple fire hazard areas where fires are likely to occur, thereby ensuring the rationality and reliability of the pressure vessel installation.

[0153] Optionally, the pressure vessel 101 of this structure is disposed within the pressure storage device 400 of the vehicle's air suspension. The pressure storage device 400 can be a device for supplying air to the vehicle's suspension (such as an air suspension), for example, the pressure storage device is an air tank for the air suspension. This reuses the vacant space next to the pressure storage device 400, eliminating the need to allocate space for the pressure vessel 101 in other locations on the vehicle, thereby saving vehicle space and facilitating management and maintenance.

[0154] Please see Figure 6 , Figure 6 This is a schematic diagram of a pressure vessel 101 provided for structure one. The pressure vessel 101 is connected to a pressure storage device 400. For example, as shown in the diagram, the pressure vessel 101 is connected below the pressure storage device 400, or it can be connected above the pressure storage device 400.

[0155] Optionally, the connection method between the pressure vessel 101 and the pressure storage device 400 includes one or more of the following: welding, bolting, riveting, and bonding. These connection methods can ensure the stability and reliability of the connection between the pressure storage device 400 and the pressure vessel 101, and prevent the pressure vessel from falling off or being damaged in scenarios such as high-speed vehicle travel, sudden braking, or accidents.

[0156] In conclusion, Figure 6 The structure is simple and the cost is low. It can also reduce the weight impact of installing the fire suppression device 100 on the vehicle, thereby improving the vehicle's range. It can also effectively utilize the vehicle's space, which is beneficial for the placement of the pressure vessel 101 in the vehicle, making the fire suppression device 100 applicable to more vehicle models.

[0157] Furthermore, the pressure vessel 101 is equipped with a solenoid valve at its opening. Figure 6 (Not shown in the image) and a bottle head valve 106, and a siphon tube 107 is provided in the inner cavity of the pressure vessel 101. The solenoid valve is connected to the controller 200 (as described above, the solenoid valve and controller 200 are connected via a low-voltage wiring harness) and is used to control the opening or closing of the bottle head valve 106; one end of the bottle head valve 106 is connected to the extinguishing agent stored in the inner cavity of the pressure vessel 101 via the siphon tube 107. Figure 6 Not shown in the image, please refer to the image. Figure 8 The other end of the bottle valve 106 is connected to the pipe 103.

[0158] Please see Figure 7 , Figure 7 This is a schematic diagram of another pressure vessel 101 provided for Structure 1. The pressure vessel 101 is disposed inside a housing 108, which includes a top cover 1081 and a shell 1082. This design secures the pressure vessel 101 within the housing 108, allowing the housing 108 to protect the pressure vessel from damage. Optionally, a cushioning device is provided within the housing 108 to ensure the stability of the pressure vessel 101.

[0159] Optionally, the housing 108 includes a pipe interface 1083, a communication interface 1084, and a pressure display 1085. The pipe interface 1083 allows a pipe 103 to pass through the housing 108 and connect to the pressure vessel 101. The communication interface 1084 connects to the controller 200, and the pressure display 1085 displays the pressure inside the pressure vessel 101. Further, the communication interface 1084 connects the solenoid valve of the pressure vessel 101 inside the housing 108 to the controller 200. For example, the communication interface 1084 is an aviation connector.

[0160] With this design, the solenoid valve installed at the mouth of pressure vessel 101 ( Figure 7(Not shown) The solenoid valve is connected to the controller 200 via communication interface 1084 (as described above, the solenoid valve and the controller 200 are connected via a low-voltage wiring harness based on communication interface 1084). The solenoid valve is used to control the opening or closing of the bottle head valve 106 provided at the bottle opening of the pressure vessel 101. One end of the bottle head valve 106 is connected to the extinguishing agent stored in the inner cavity of the pressure vessel 101 through a siphon tube in the inner cavity of the pressure vessel 101, and the other end of the bottle head valve 106 is connected to the pipe 103 (in other words, one end of the pipe 103 passes through the outer shell 108 via pipe interface 1083 and is connected to the other end of the bottle head valve 106, and the other end of the pipe 103 is connected to the nozzle 102).

[0161] Optionally, the housing 108 is located at the chassis of the vehicle, that is, the pressure vessel 101 is located at the chassis of the vehicle. Alternatively, the housing 108 may be located at other locations on the vehicle (such as under the seats). This application does not limit the location of the housing 108.

[0162] The design takes into account that the vehicle's power battery pack is generally located in the vehicle's chassis, so that the pressure vessel 101 is closer to the power battery pack, in order to ensure the timeliness and reliability of fire suppression control of the power battery.

[0163] Structure 2: The pressure vessel 101 and the vehicle's pressure storage device 400 are integrated into one structure.

[0164] Using Structure 2 eliminates the need to allocate space for the pressure vessel on the vehicle, thus saving vehicle space. Furthermore, it simplifies the overall structure by eliminating the need to consider the connection method between the pressure vessel and the pressure storage device 400.

[0165] Please see Figure 8 , Figure 8 This is a schematic diagram of a pressure vessel 101 provided for Structure 2. The integrated structure divides the inner cavity of the pressure vessel 101 and the inner cavity of the pressure storage device 400 by a partition 500. Alternatively, the partition 500 acts as a shared accommodating chamber structure for both the pressure vessel 101 and the pressure storage device 400, making the integrated structure more compact and further saving space. It can be seen that the pressure storage device 400 and the pressure vessel 101 are set up as a whole, separated by the partition 500 to avoid affecting their respective functions. This also reduces the weight impact of installing the fire suppression device 100 on the vehicle, improving the vehicle's range. Furthermore, it effectively utilizes vehicle space, facilitating the placement of the pressure vessel 101 within the vehicle, allowing the fire suppression device 100 to be applied to a wider range of vehicle models.

[0166] Furthermore, the pressure vessel 101 is equipped with a solenoid valve at its opening. Figure 8(Not shown in the diagram) and a bottle head valve 106, and a siphon tube 107 is provided in the inner cavity of the pressure vessel 101. The solenoid valve is connected to the controller 200 (as described above, the solenoid valve and controller 200 are connected via a low-voltage wiring harness) to control the opening or closing of the bottle head valve 106; one end of the bottle head valve 106 is connected to the extinguishing agent stored in the inner cavity of the pressure vessel 101 via the siphon tube, and the other end of the bottle head valve 106 is connected to the pipeline 103.

[0167] Optionally, the pressure vessel 101 is also provided with a pressure display 1085; wherein the pressure display 1085 is used to display the pressure inside the pressure vessel 101.

[0168] In the above description, the controller 200 is used to control the solenoid valve of the pressure vessel 101, thereby controlling the pressure vessel 101 to spray extinguishing agent or to stop the spraying of extinguishing agent. Specifically, the controller 200 controls the solenoid valve by energizing the solenoid valve (i.e., the solenoid valve responds to a first control signal), causing the cylinder head valve 106 of the pressure vessel 101 to open, thereby allowing the pressure vessel 101 to spray extinguishing agent. Alternatively, the controller 200 can de-energize the solenoid valve (i.e., the solenoid valve responds to a third control signal), causing the cylinder head valve 106 of the pressure vessel 101 to close, thereby stopping the spraying of extinguishing agent.

[0169] In this embodiment, the pressure vessel 101 also contains a high-pressure inert gas. Optionally, the high-pressure inert gas includes one or more of the following: nitrogen, helium, neon, argon, and krypton, which are not limited herein.

[0170] It is understandable that, since pressure vessel 101 contains high-pressure inert gas, when the valve 106 of pressure vessel 101 is opened, the high-pressure inert gas in pressure vessel 101 compresses the extinguishing agent, causing the extinguishing agent to flow sequentially from siphon pipe 107, valve 106, and pipeline 103 to nozzle 102, and then the extinguishing agent is sprayed from nozzle 102 onto the fire hazard area. Similarly, when the valve 106 of pressure vessel 101 is closed, the extinguishing agent in pressure vessel 101 no longer sprays out.

[0171] Optional, please refer to Figure 9 , Figure 9 This is a schematic diagram of another fire suppression system provided in an embodiment of this application. The system also includes an active activation device 300. The emergency active activation device 300 can be a switch or a button (such as a physical button or a virtual button on a display screen). The embodiments of this application do not limit the specific technology or specific equipment form adopted by the active activation device 300.

[0172] Optionally, the fire suppression device 100 and the active activation device 300 are connected via a low-voltage wiring harness. Specifically, the active activation device 300 is used to send a first control signal and a second control signal to the fire suppression device 100 based on user operation (i.e., sending a first control signal to the solenoid valve of the pressure vessel 101 and a second control signal to the control valve 104). Optionally, user operation can be clicking, pulling, pressing, etc., and this application does not limit the user operation.

[0173] Alternatively, the active activation device 300 is specifically used to: send a third control signal and a fourth control signal to the fire suppression device 100 based on user operation (i.e., send a third control signal to the solenoid valve of the pressure vessel 101 and a fourth control signal to the control valve 104). The operation of the fire suppression device 100 in response to the signals can be referred to the above content, and will not be repeated here.

[0174] It is understandable that the active activation device 300 can enable occupants to actively control the fire suppression in areas with potential fire hazards, so that even when the controller 200 is unable to control the fire suppression device, the fire suppression in areas with potential fire hazards can still be controlled, thus further ensuring the reliability of fire suppression control.

[0175] Based on the fire suppression control method described above, this application can also provide an execution device. This execution device can be used to perform the method executed by the controller 200 in the above fire suppression control method; relevant features can be found in the above method embodiments, and will not be repeated here. Please refer to... Figure 10 The diagram shows a possible structural schematic of the execution device 1000. The execution device 1000 includes a processing unit 1010 and a transceiver unit 1020.

[0176] It should be noted that the aforementioned processing unit 1010 and transceiver unit 1020 can be implemented using virtual modules. For example, processing unit 1010 can be implemented using software functional units or virtual devices, and transceiver unit 1020 can be implemented using software functions or virtual devices. Alternatively, processing unit 1010 and transceiver unit 1020 can also be implemented using physical devices. For example, if the execution device 1000 is implemented using chip / chip circuitry, processing unit 1010 and transceiver unit 1020 can be integrated processors, microprocessors, or integrated circuits.

[0177] The unit division in this application embodiment is illustrative and only represents one logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in each embodiment of this application can be integrated into a single processor, exist as separate physical units, or two or more units can be integrated into a single module. The integrated module can be implemented in hardware or as a software functional module.

[0178] The specific operations of the processing unit 1010 and the transceiver unit 1020 are described below.

[0179] When the actuator 1000 executes the steps performed by the controller 200, the actuator 1000 may be a device or module with processing capabilities integrated in the vehicle (such as a processor, chip, or chip system), or it may be an apparatus applied to or used in conjunction with the device or its module to implement the method executed by the device or its module. The actuator 1000 may include various units or modules for implementing the steps executed by the controller 200 in the fire suppression control method shown in any of the above embodiments, such as those described above. Figure 3 , Figure 4 as well as Figure 5 Each unit or module of the steps executed by the controller 200 in the fire suppression control method shown in any of the attached figures.

[0180] For example, in one instance, the device 1000 performs the above... Figure 4 In the fire suppression control method shown, the processing unit 1010 is used to acquire the thermal runaway parameters inside the power battery pack through the transceiver unit 1020; then, the processing unit 1010 is used to determine that the power battery pack meets the fire suppression conditions when the thermal runaway parameters meet the preset conditions. The preset conditions include one or more of the following: voltage greater than a voltage threshold, current greater than a current threshold, temperature greater than a temperature threshold, gas pressure greater than a gas pressure threshold, temperature rise rate greater than a rate threshold, and combustible gas concentration greater than a concentration threshold.

[0181] For example, please refer to one example. Figure 11 The diagram illustrates another possible structural schematic of the execution device 1000. For example, the execution device 1000 may be a chip or a chip system, used to implement the functions of the execution device 1000 or its units (such as a processor, chip, or chip system) described in the foregoing embodiments. Optionally, in the embodiments of this application, the chip system may be composed of chips, or may include chips and other discrete devices.

[0182] like Figure 11As shown, the execution device 1000 may include at least one processor 1110, which is coupled to a memory. Optionally, the memory may be located within the execution device 1000, integrated with the processor 1110, or the memory 1120 may be located outside the execution device 1000. For example, the execution device 1000 may further include at least one memory 1120. The at least one memory 1120 stores the necessary computer programs (or instructions) and / or data for implementing any of the above embodiments; the at least one processor 1111 can execute the computer programs (or instructions) and / or data stored in the at least one memory 1120 to complete the methods in any of the above embodiments.

[0183] The execution device 1000 may also include a communication interface 1130, through which the execution device 1000 can interact with other devices. For example, the communication interface 1130 may be a transceiver, circuit, bus, module, pin, or other type of communication interface. When the execution device 1000 is a chip-type device or circuit, the communication interface 1130 in the execution device 1000 may also be an input / output circuit, capable of inputting information (or receiving information) and outputting information (or sending information). The processor 1111 is an integrated processor, microprocessor, integrated circuit, or logic circuit, and the processor 1111 can determine the output information based on the input information.

[0184] The coupling in this embodiment is an indirect coupling or communication connection between devices, units, or modules, which can be electrical, mechanical, or other forms, used for information exchange between devices, units, or modules. The processor 1111 may operate in conjunction with the memory 1120 and the communication interface 1130. This embodiment does not limit the connection medium between the processor 1111, the memory 1120, and the communication interface 1130.

[0185] Optional, see Figure 11 The processor 1111, memory 1120, and communication interface 1130 are interconnected via a bus. The bus can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. The bus can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 11 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0186] In the embodiments of this application, the processor 1111 can be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, capable of implementing or executing the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of this application can be directly manifested as being executed by a hardware processor, or being executed by a combination of hardware and software modules in the processor.

[0187] In this embodiment, the memory 1120 can be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), or it can be volatile memory, such as random-access memory (RAM). The memory 1120 can be any other medium capable of carrying or storing desired program code in the form of instructions or data structures, and accessible by a computer, but is not limited thereto. The memory 1120 in this embodiment can also be a circuit or any other device capable of implementing a storage function for storing program instructions and / or data.

[0188] Based on the above embodiments, this application also provides a fire suppression system, including the fire suppression device 100 and controller 200 mentioned above. Optionally, the system may further include an active activation device 300. Related details are described above and will not be repeated here.

[0189] It should be noted that the functions of each device in the above fire suppression system, the concepts involved and related to the technical solutions provided in this application, explanations, detailed descriptions and other steps are described in the foregoing method embodiments, and will not be repeated here.

[0190] Based on the above, this application can also provide a terminal device, including the above-mentioned fire suppression device 100 and controller 200, as described above. Figure 2 or Figure 8 The fire suppression device 100 and controller 200 are shown. Alternatively, the fire suppression system may include the above-described fire suppression system. Figure 2 or Figure 9 The fire suppression system shown.

[0191] For example, the terminal device can be a vehicle, such as a car, truck, motorcycle, bus, recreational vehicle, amusement park vehicle, construction equipment, tram, toy car, golf cart, train, etc., and this application does not impose any particular limitation. In addition, the vehicle can be a new energy vehicle, including electric vehicles, such as two-wheel drive electric vehicles or four-wheel drive electric vehicles, or a fuel vehicle, and this application does not impose any limitation in this regard.

[0192] Alternatively, the terminal equipment can also be other means of transportation, such as airplanes, ships, trains, high-speed trains, etc.

[0193] Alternatively, the terminal device can also be a non-transportation vehicle, such as a smart home robot, an industrial robot, or an autonomous following wheelchair.

[0194] Based on the above, this application also provides a computer-readable storage medium storing instructions that, when executed, cause the method provided in any of the above-described method embodiments to be implemented. The computer-readable storage medium may include various media capable of storing program code, such as a USB flash drive, portable hard drive, read-only memory, random access memory, magnetic disk, or optical disk.

[0195] Based on the above, this application also provides a computer program product, which includes: a computer program (also referred to as code or instructions), which, when run on a computer, causes the computer to perform the method provided in any of the above method embodiments.

[0196] Based on the above embodiments, this application also provides a chip for reading a computer program stored in a memory to implement the method provided in the above embodiments. Optionally, the chip may include a processor coupled to the memory for reading the computer program stored in the memory to implement the method provided in the above embodiments. Optionally, the chip may also include components such as a memory, a communication interface, and a power supply module. The memory is used to store the computer program; the communication interface is used to receive and send data; and the power supply module is used to supply power to the processor.

[0197] Based on the above embodiments, this application provides a chip system including a processor for supporting a computer device in implementing the methods provided in the above embodiments. In one possible design, the chip system further includes a memory for storing necessary programs and data of the computer device. This chip system may be composed of chips or may include chips and other discrete devices.

[0198] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, etc.) containing computer-usable program code.

[0199] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to this application. It should be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0200] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0201] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0202] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A fire suppression device, characterized in that, Applied to vehicles, the fire suppression device includes a pressure vessel and at least one nozzle. The pressure vessel and the at least one nozzle are connected by a pipeline. Each nozzle has a control valve installed in the pipeline corresponding to it. The at least one nozzle is installed in the fire hazard area of ​​the vehicle. The pressure vessel contains a fire extinguishing agent. The pressure vessel is used to receive a first control signal from the controller and to spray the extinguishing agent, wherein the first control signal is used to instruct the spraying of the extinguishing agent. The control valve is used to receive a second control signal from the controller to open the hollow channel of the pipeline where the control valve is located. The second control signal is used to instruct the control valve to be opened.

2. The fire suppression device as described in claim 1, characterized in that, The pressure vessel is disposed in the pressure storage device of the vehicle's air suspension.

3. The fire suppression device as described in claim 2, characterized in that, The pressure vessel is connected to the pressure storage device; The connection method between the pressure vessel and the pressure storage device includes one or more of the following: welding, bolting, riveting, and bonding.

4. The fire suppression device as described in claim 2, characterized in that, The pressure vessel and the pressure storage device are an integrated structure.

5. The fire suppression device as described in claim 4, characterized in that, The integrated structure divides the inner cavity of the pressure vessel and the inner cavity of the pressure storage device by a partition.

6. The fire suppression device as described in claim 1, characterized in that, The pressure vessel is located on the chassis of the vehicle.

7. The fire suppression device as described in claim 6, characterized in that, The fire suppression device also includes a housing, the pressure vessel is disposed inside the housing, and the housing is disposed at the chassis position of the vehicle.

8. The fire suppression device as described in claim 7, characterized in that, The housing includes a pipe interface, a communication interface, and a pressure display. The pipe interface is used to allow a pipe to pass through the outer shell and communicate with the pressure vessel, the communication interface is used to connect to the controller, and the pressure display is used to display the pressure inside the pressure vessel.

9. The fire suppression device according to any one of claims 1-8, characterized in that, The pressure vessel is equipped with a solenoid valve and a head valve at its opening. One end of the head valve is connected to the extinguishing agent stored inside the pressure vessel via a siphon tube, and the other end of the head valve is connected to the pipeline. Specifically, the solenoid valve is used to: respond to the first control signal and control the bottle head valve to open.

10. The fire suppression device according to any one of claims 1-9, characterized in that, The fire hazard areas include one or more of the following: the inside of the power battery pack, the front compartment of the vehicle, the rear compartment of the vehicle, and the outer casing of the battery cells.

11. The fire suppression device according to any one of claims 1-10, characterized in that, Each of the at least one nozzle is equipped with a one-way valve.

12. The fire suppression device according to any one of claims 1-11, characterized in that, The solenoid valve of the pressure vessel is connected to the controller via a low-pressure wiring harness, and the control valve is also connected to the controller via a low-pressure wiring harness.

13. The fire suppression device according to any one of claims 1-12, characterized in that, The pressure vessel is also configured to receive a third control signal from the controller to stop discharging the extinguishing agent, the third control signal being used to instruct the extinguishing agent to be stopped.

14. The fire suppression device according to any one of claims 1-13, characterized in that, The control valve is also configured to receive a fourth control signal from the controller to close the hollow passage of the pipeline in which the control valve is located, the fourth control signal being used to instruct the control valve to be closed.

15. A fire suppression system, characterized in that, Includes a controller and a fire suppression device as described in any one of claims 1-14, wherein the controller is connected to the fire suppression device via a low-voltage wiring harness; The controller is used to detect fire hazard areas on the vehicle. When it is determined that the fire hazard area meets the fire suppression conditions, it sends a first control signal and a second control signal to the fire suppression device. The first control signal is used to instruct the spraying of the fire extinguishing agent, and the second control signal is used to instruct the opening of the control valve in the fire suppression device. The fire suppression device is used to spray the fire extinguishing agent into the fire hazard area.

16. The fire suppression system as described in claim 15, characterized in that, The area where a fire hazard is located includes the inside of the power battery pack; The controller is specifically used for: The thermal runaway parameters inside the power battery pack are obtained, and the thermal runaway parameters include one or more of the following: voltage, current, temperature, gas pressure, temperature rise rate, and combustible gas concentration; When the thermal runaway parameters are determined to meet the preset conditions, the internal conditions of the power battery pack are determined to meet the fire suppression conditions.

17. The fire suppression system as described in claim 16, characterized in that, The preset conditions include one or more of the following: Voltage is greater than voltage threshold, current is greater than current threshold, temperature is greater than temperature threshold, gas pressure is greater than gas pressure threshold, temperature rise rate is greater than rate threshold, and combustible gas concentration is greater than concentration threshold.

18. The fire suppression system as described in claim 15, characterized in that, The fire hazard area includes areas other than the inside of the power battery pack; The controller is specifically used for: Acquire detection information for the other regions, the detection information including one or more of the following: visual image, temperature, infrared radiation energy; When it is determined, based on the detection information, that other areas have a fire risk, the other areas are determined to meet the fire suppression conditions.

19. The fire suppression system according to any one of claims 15-18, characterized in that, The controller is also used for: When it is determined that the fire hazard area does not meet the fire suppression conditions, a third control signal and a fourth control signal are sent to the fire suppression device. The third control signal is used to instruct the extinguishing agent to be stopped, and the fourth control signal is used to instruct the control valve to be closed. The fire suppression device is specifically used to: stop the spraying of the fire extinguishing agent into the fire hazard area.

20. The fire suppression system according to any one of claims 15-19, characterized in that, It also includes an active activation device, which is connected to the fire suppression device via a low-voltage wiring harness; The active activation device is used to receive user operation and send a first control signal and a second control signal to the fire suppression device. The first control signal is used to indicate the spraying of the fire extinguishing agent, and the second control signal is used to indicate the opening of the control valve. or, The active activation device is used to receive user operations and send a third control signal and a fourth control signal to the fire suppression device. The third control signal is used to instruct the extinguishing agent to be stopped, and the fourth control signal is used to instruct the control valve to be closed.

21. The fire suppression system according to any one of claims 15-20, characterized in that, The processor is also used to report thermal runaway information or fire risk warning information of the power battery pack to the user when the fire suppression conditions are met in the fire hazard area.

22. The fire suppression system according to any one of claims 15-21, characterized in that, The processor is also used to control the power battery pack or the entire vehicle to shut down when the fire suppression conditions are met in the fire hazard area.

23. The fire suppression system according to any one of claims 15-22, characterized in that, The processor is also used to determine whether there are passengers in the passenger compartment when the fire suppression conditions are met in the fire hazard area, and to issue a prompt message to remind passengers to evacuate if there are passengers in the passenger compartment.

24. A vehicle, characterized in that, include: The fire suppression device as described in any one of claims 1-14, or the fire suppression system as described in any one of claims 15-23.

25. The vehicle as claimed in claim 24, characterized in that, The vehicles mentioned are new energy vehicles, hybrid vehicles, range-extended electric vehicles, or fuel vehicles.

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