Fire extinguishing method, device and equipment for vehicle fire and storage medium

Abstract

The invention discloses a whole vehicle fire extinguishing method, device and equipment and a storage medium, and the method comprises the steps: monitoring whether a fire exists in a preset fire area of a vehicle in real time, the preset fire area including a power battery pack area, a vehicle chassis area and an engine compartment area; and if it is detected that the fire exists in any preset fire area, non-stored-pressure fire extinguishing equipment arranged in the corresponding fire area is started in at least one mode of hot start, electric control start or manual emergency start, so that fire extinguishing agents are sprayed out through the non-stored-pressure fire extinguishing equipment to extinguish the fire in the corresponding fire area. The fire extinguishing system can quickly extinguish an initial fire of the new energy automobile, effectively delay fire spreading or extinguish the fire, greatly prolong the escape time of passengers and avoid major safety accidents, is small and convenient, can be conveniently carried on the automobile, meets the lightweight requirement, is free of maintenance, and reduces the use cost.

Description

Technical Field

[0001] This invention relates to the field of new energy vehicle safety technology, and in particular to a method, apparatus, equipment and storage medium for extinguishing a fire in a vehicle. Background Technology

[0002] With the escalating global energy crisis and environmental pollution, new energy vehicles have seen their market share rapidly increase year by year due to their advantages in energy conservation and environmental protection. However, along with the surge in the number of new energy vehicles, fire safety accidents have become frequent, a prominent issue of widespread social concern and a serious impact on enterprise development. New energy vehicles, especially pure electric vehicles and hybrid vehicles, store a large amount of chemical energy in their power battery packs. Once thermal runaway occurs, the fires often start quickly, spread fiercely, and are difficult to extinguish, easily causing significant casualties and property damage.

[0003] Currently, fire protection technologies for new energy vehicles have certain limitations. Traditional fire protection measures are mainly designed for building fire protection systems and are difficult to apply directly to mobile new energy vehicles. As for the fire protection technologies integrated into the vehicle, most existing technologies focus on extinguishing fires within the power battery pack itself. This approach, which only addresses the battery pack, cannot prevent fires from spreading throughout the entire vehicle, and consequently cannot prevent secondary fires caused by the spread of the fire.

[0004] How to comprehensively and effectively prevent and control fires in different high-risk areas of new energy vehicles and effectively prevent the spread of fire is a technical problem that urgently needs to be solved. Summary of the Invention

[0005] The main objective of this invention is to provide a method, device, equipment, and storage medium for extinguishing fires in vehicles, which can quickly extinguish initial fires in new energy vehicles, effectively delay the spread of fires or extinguish fires, significantly extend the escape time for occupants, and prevent major safety accidents. At the same time, the fire extinguishing system is compact and convenient, can be easily installed on vehicles, meets the requirements of lightweighting, and requires no maintenance, thus reducing operating costs.

[0006] Firstly, this application provides a method for extinguishing a vehicle fire, the method comprising the steps of: Real-time monitoring of whether there is a fire in the vehicle's preset fire areas, including: the power battery pack area, the vehicle chassis area, and the engine compartment area; If a fire is detected in any of the preset fire zones, the non-pressurized fire extinguishing equipment located in the corresponding fire zone will be activated by at least one of the following methods: hot start, electrical start, or manual emergency start, so that the fire extinguishing agent can be sprayed out by the non-pressurized fire extinguishing equipment to extinguish the fire in the corresponding fire zone.

[0007] In conjunction with the first aspect mentioned above, as an optional implementation method, if a fire is determined to exist in the power battery pack area, the non-pressurized fire extinguishing equipment arranged in the battery pack area is automatically activated using linear detection components to extinguish the fire. Alternatively, if a fire is determined to exist in the power battery pack area, a composite detector connected to the fire extinguishing equipment is used to detect carbon monoxide gas, smoke, and temperature, and a composite judgment is made to generate an activation signal. The start signal is transmitted to the VCU and BMS; After receiving the start signal, the VCU sends a high-voltage cutoff signal to the PDU to cut off the high voltage, and then feeds back the signal after the high voltage cutoff to the BMS. The BMS activates non-pressurized fire suppression equipment located in the battery pack area to extinguish the fire. Alternatively, if a fire is confirmed in the area of ​​the power battery pack, the target object can remotely control the activation of fire extinguishing equipment; When the VCU receives the start signal, it sends a high-voltage cut-off signal to the PDU to cut off the high voltage, and then feeds back the signal after the high voltage is cut off to the BMS. The BMS activates the non-pressurized fire suppression equipment located in the battery pack area to extinguish the fire.

[0008] In conjunction with the first aspect mentioned above, as an optional implementation method, if a fire is determined to exist in the vehicle chassis area, the non-pressurized fire extinguishing equipment arranged in the vehicle chassis area will be automatically activated by the heat detection component to extinguish the fire. Alternatively, if a fire is confirmed to exist in the vehicle chassis area, the target can remotely control the activation of fire extinguishing equipment. When the VCU receives the start signal, the switch closes and uses the vehicle's battery to power the fire extinguishing equipment located in the vehicle chassis area to start the fire extinguishing equipment.

[0009] In conjunction with the first aspect mentioned above, as an optional implementation method, if a fire is determined to exist in the engine compartment area, the non-pressurized fire extinguishing equipment arranged in the engine compartment area is automatically activated using the linear detection component to extinguish the fire. Alternatively, if a fire is confirmed in the engine compartment area, a composite detector connected to the fire extinguishing equipment is used to detect carbon monoxide gas, smoke, and temperature, and a composite judgment is made to generate an activation signal. The start signal is transmitted to the VCU, and based on the VCU receiving the start signal, a high voltage cut-off signal is sent to the PDU to cut off the high voltage. The signal after the high voltage is cut off is fed back to the VCU, and the start signal is sent to the fire extinguishing equipment located in the engine compartment area so as to use the vehicle battery to start the fire extinguishing equipment to extinguish the fire. Alternatively, if a fire is confirmed in the engine compartment area, the target can remotely control the activation of fire extinguishing equipment. Based on the start signal received by the VCU, a high-voltage cutoff signal is sent to the PDU to cut off the high voltage. The signal after the high voltage is cut off is fed back to the VCU, and the start signal is sent to the fire extinguishing equipment located in the engine compartment area to start the fire extinguishing equipment using the vehicle battery to extinguish the fire.

[0010] In conjunction with the first aspect above, as an optional implementation method, the detection components distributed in the preset fire areas are used to monitor in real time whether there is a fire in each fire area. The detection components include: a linear thermal detection component and a temperature-sensitive thermal detection component. The linear thermal detection component includes: a thermal wire and an energy amplifier. The temperature-sensitive thermal detection component includes: a temperature-sensitive cable and a glass bulb. Specifically, the linear thermal detection component is used to detect the temperature inside the battery pack. If the temperature exceeds a first set range, it is determined that there is a fire in the power battery pack area. The temperature of the battery pack is continuously detected using a temperature-sensing thermal detection component. If the temperature of the battery pack continues to exceed the first set range and the temperature of the vehicle chassis area shows an increasing trend, it is determined that there is a fire in the vehicle chassis area. The temperature inside the engine compartment is detected using a linear thermal detection component. If the temperature exceeds a second set range, it is determined that there is a fire in the engine compartment area.

[0011] In conjunction with the first aspect mentioned above, as an optional implementation method, a gas generator or aerosol generator inside the fire extinguishing equipment undergoes an oxidation-reduction reaction to generate an inert gas from a solid state, which propels the aerosol extinguishing agent, perfluorohexanone extinguishing agent, and liquid nitrogen extinguishing agent to be sprayed directly from the nozzle of the fire extinguishing equipment for fire extinguishing.

[0012] In conjunction with the first aspect mentioned above, as an optional implementation method, the VCU can be used to receive the signal that the fire extinguishing equipment has been activated; The VCU transmits the received signal that the fire extinguishing equipment has been activated to the instrument and / or T-BOX to alert the target.

[0013] Secondly, this application provides a fire extinguishing device for a vehicle fire, the device comprising: The monitoring module is used to monitor in real time whether there is a fire in a preset fire area of ​​the vehicle. The preset fire areas include: the power battery pack area, the vehicle chassis area, and the engine compartment area. The control module is used to activate, by means of at least one of hot start, electrical start or manual emergency start, the non-pressurized fire extinguishing equipment arranged in the corresponding fire area if a fire is detected in any preset fire area, so as to spray fire extinguishing agent through the non-pressurized fire extinguishing equipment to extinguish the fire in the corresponding fire area.

[0014] Thirdly, this application also provides an electronic device, the electronic device comprising: a processor; and a memory storing computer-readable instructions, which, when executed by the processor, implement the method described in any one of the first aspects.

[0015] Fourthly, this application also provides a computer-readable storage medium storing computer program instructions that, when executed by a computer, cause the computer to perform the method described in any of the first aspects.

[0016] This application provides a method, apparatus, equipment, and storage medium for extinguishing fires in vehicles. The method includes the steps of: real-time monitoring of whether a fire exists in a preset fire area of ​​the vehicle, the preset fire area including: a power battery pack area, a vehicle chassis area, and an engine compartment area; if a fire is detected in any of the preset fire areas, then activating a non-pressurized fire extinguishing device located in the corresponding fire area through at least one of hot start, electronic start, or manual emergency start, so as to spray extinguishing agent through the non-pressurized fire extinguishing device to extinguish the fire in the corresponding fire area. This application can quickly extinguish the initial fire in new energy vehicles, effectively delay the spread of the fire or extinguish the fire, significantly extend the escape time for occupants, and avoid major safety accidents. At the same time, the fire extinguishing system is compact and convenient, can be easily installed in the vehicle, meets the requirements of lightweight design, and requires no maintenance, reducing operating costs.

[0017] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the invention. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0019] Figure 1 This is a flowchart of a method for extinguishing a vehicle fire provided in an embodiment of this application; Figure 2 This is a schematic diagram of a fire extinguishing device for a vehicle fire provided in an embodiment of this application; Figure 3 This is a schematic diagram of fire extinguishing for a vehicle fire provided in an embodiment of this application. Figure 4 This is a schematic diagram of an electronic device provided in an embodiment of this application; Figure 5 This is a schematic diagram of a computer-readable program medium provided in an embodiment of this application. Detailed Implementation

[0020] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the invention as detailed in the appended claims.

[0021] Furthermore, the accompanying drawings are merely illustrative of this disclosure and are not necessarily drawn to scale. Some of the block diagrams shown in the drawings represent functional entities and do not necessarily correspond to physically or logically independent entities.

[0022] The embodiments of this application will be further described in detail below with reference to the accompanying drawings.

[0023] Reference Figure 1 , Figure 1 The diagram shown is a flowchart of a method for extinguishing a vehicle fire provided by the present invention. Figure 1 As shown, the method includes the following steps: Step S101: Monitor in real time whether there is a fire in the vehicle's preset fire areas, which include: the power battery pack area, the vehicle chassis area, and the engine compartment area.

[0024] Specifically, the system monitors in real time whether there is a fire in each fire zone based on the detection components distributed in the preset fire zones. The detection components include: a linear thermal detection component and a temperature-sensitive thermal detection component. The linear thermal detection component includes: a thermal wire and an energy amplifier. The temperature-sensitive thermal detection component includes: a temperature-sensitive cable and a glass bulb. Specifically, the linear thermal detection component is used to detect the temperature inside the battery pack. If the temperature exceeds a first set range, it is determined that there is a fire in the power battery pack area. The temperature of the battery pack is continuously detected using a temperature-sensing thermal detection component. If the temperature of the battery pack continues to exceed the first set range and the temperature of the vehicle chassis area shows an increasing trend, it is determined that there is a fire in the vehicle chassis area. The temperature inside the engine compartment is detected using a linear thermal detection component. If the temperature exceeds a second set range, it is determined that there is a fire in the engine compartment area.

[0025] Understandably, detection devices are installed in different fire hazard areas to monitor for fires, and fire extinguishing systems are also installed in different fire hazard areas, namely, fire extinguishing equipment (installed in 1. inside the battery pack, 2. the chassis (around flammable materials on the underbody panel), and 3. the engine compartment). Each location has its own detector. The detection and extinguishing signals are only directed to their respective circuits. If only the power battery is on fire, only the power battery will be extinguished. If the fire spreads to the chassis, the chassis detectors will detect the fire and execute their own extinguishing logic.

[0026] It needs to be explained that this application 1. Install fire extinguishing devices that can be automatically or manually extinguished, quickly detect and activate them to extinguish initial fires in new energy vehicles.

[0027] 2. Starting from the concept of the whole vehicle, develop special fire detection and activation systems for the power battery, chassis and engine compartment that are prone to fire, and realize a combination of automatic and manual fire extinguishing methods.

[0028] 3. The fire extinguishing equipment is positioned at the corresponding point of ignition, allowing the extinguishing agent to act directly on the fire source and effectively extinguish the fire. (For example, if a battery pack catches fire, because the battery pack is sealed, the extinguishing agent cannot enter the fire source, and personnel cannot extinguish the fire with a fire extinguisher.) 4. Existing fire extinguishing technologies all inject extinguishing agents into the corresponding locations through pipelines. This technology uses non-pressurized fire extinguishing devices, where the extinguishing agent is sprayed directly from the extinguishing device located at the corresponding fire point to extinguish the fire (without pipelines, pressure, or large tanks for storing extinguishing agents).

[0029] Step S102: If a fire is detected in any of the preset fire areas, the non-pressurized fire extinguishing equipment arranged in the corresponding fire area is activated by at least one of the following methods: hot start, electric start, or manual emergency start, so as to spray extinguishing agent through the non-pressurized fire extinguishing equipment to extinguish the fire in the corresponding fire area.

[0030] Specifically, when the applied vehicle is a hybrid vehicle, the content is divided into three parts: power battery fire extinguishing methods and systems, vehicle chassis fire extinguishing methods and systems, and engine compartment fire extinguishing methods and systems. When the applied vehicle type is a pure electric vehicle, the content is divided into two parts: power battery fire extinguishing methods and systems, and vehicle chassis fire extinguishing methods and systems. (Hybrid vehicles are powered by both a battery pack and an engine, while pure electric vehicles are powered only by a battery pack; this is used to distinguish between pure electric and hybrid vehicles.)

[0031] The fire extinguishing method and system activation mode of the power battery consists of three parts: automatic fire extinguishing activated by the linear thermal detection component, automatic fire extinguishing activated by electric start, and manual emergency fire extinguishing activated.

[0032] The vehicle chassis fire extinguishing method and system activation mode consist of two parts: heat detection-activated fire extinguishing and manual emergency activation fire extinguishing.

[0033] The engine compartment fire extinguishing method and system activation mode consist of three parts: automatic fire extinguishing activated by the linear thermal detection component, automatic fire extinguishing activated by electric start, and manual emergency fire extinguishing activated.

[0034] The fire extinguishing method and system activation mode of the power battery consists of three parts: automatic fire extinguishing activated by the linear thermal detection component, automatic fire extinguishing activated by electric start, and manual emergency fire extinguishing activated.

[0035] Specifically, if a fire is detected in the power battery pack area, the non-pressurized fire extinguishing equipment deployed in the battery pack area will be automatically activated using linear detection components to extinguish the fire. Alternatively, if a fire is determined to exist in the power battery pack area, a composite detector connected to the fire extinguishing equipment is used to detect carbon monoxide gas, smoke, and temperature, and a composite judgment is made to generate an activation signal. The start signal is transmitted to the VCU and BMS; After receiving the start signal, the VCU sends a high-voltage cutoff signal to the PDU to cut off the high voltage, and then feeds back the signal after the high voltage cutoff to the BMS. The BMS activates non-pressurized fire suppression equipment located in the battery pack area to extinguish the fire. Alternatively, if a fire is confirmed in the area of ​​the power battery pack, the target object can remotely control the activation of fire extinguishing equipment; When the VCU receives the start signal, it sends a high-voltage cut-off signal to the PDU to cut off the high voltage, and then feeds back the signal after the high voltage is cut off to the BMS. The BMS activates the non-pressurized fire suppression equipment located in the battery pack area to extinguish the fire.

[0036] The vehicle chassis fire extinguishing method and system activation mode consist of two parts: heat detection-activated fire extinguishing and manual emergency activation fire extinguishing.

[0037] Specifically, if a fire is confirmed in the vehicle chassis area, the non-pressurized fire extinguishing equipment located in the vehicle chassis area will be automatically activated by the heat detection component to extinguish the fire. Alternatively, if a fire is confirmed to exist in the vehicle chassis area, the target can remotely control the activation of fire extinguishing equipment. When the VCU receives the start signal, the switch closes and uses the vehicle's battery to power the fire extinguishing equipment located in the vehicle chassis area to start the fire extinguishing equipment.

[0038] The engine compartment fire suppression method and system consists of three parts: automatic fire suppression initiated by the linear thermal detection component, automatic fire suppression initiated by electric start, and manual emergency fire suppression initiated by manual start.

[0039] Specifically, if a fire is confirmed in the engine compartment area, the non-pressurized fire extinguishing equipment deployed in the engine compartment area will be automatically activated using the linear detection components to extinguish the fire. Alternatively, if a fire is confirmed in the engine compartment area, a composite detector connected to the fire extinguishing equipment is used to detect carbon monoxide gas, smoke, and temperature, and a composite judgment is made to generate an activation signal. The start signal is transmitted to the VCU, and based on the VCU receiving the start signal, a high voltage cut-off signal is sent to the PDU to cut off the high voltage. The signal after the high voltage is cut off is fed back to the VCU, and the start signal is sent to the fire extinguishing equipment located in the engine compartment area so as to use the vehicle battery to start the fire extinguishing equipment to extinguish the fire. Alternatively, if a fire is confirmed in the engine compartment area, the target can remotely control the activation of fire extinguishing equipment. Based on the start signal received by the VCU, a high-voltage cutoff signal is sent to the PDU to cut off the high voltage. The signal after the high voltage is cut off is fed back to the VCU, and the start signal is sent to the fire extinguishing equipment located in the engine compartment area to start the fire extinguishing equipment using the vehicle battery to extinguish the fire.

[0040] It should be explained that if the high voltage is not cut off first, the release of the extinguishing medium under high voltage may cause side reactions, resulting in short circuits and thermal runaway of more batteries, which is not conducive to fire extinguishing.

[0041] In addition, the option to execute any one of the three methods for fire suppression (automatic, electric start, and manual) is to ensure that if any one of them fails, the other methods can still be used to extinguish the fire.

[0042] In one embodiment, if a fire is detected in any preset fire area, the non-pressurized fire extinguishing equipment located in the corresponding fire area is activated by at least one of the following methods: hot start, electrical start, or manual emergency start. This includes: receiving a signal that the fire extinguishing equipment has been activated using a VCU; the VCU then transmits the received signal to an instrument and / or a T-BOX to alert the target object.

[0043] In one embodiment, a gas generator or aerosol generator inside the fire extinguishing equipment undergoes an oxidation-reduction reaction to generate an inert gas from a solid state, which propels the aerosol extinguishing agent, perfluorohexanone extinguishing agent, and liquid nitrogen extinguishing agent directly out of the nozzle of the fire extinguishing equipment for fire extinguishing.

[0044] It is understood that the medium inside the fire extinguishing device can be any one of aerosol generators, gas generators and perfluorohexanone extinguishing agents, or gas generators and liquid nitrogen extinguishing agents. Specifically, upon receiving a thermal or electrical start signal, the gas generator or aerosol generator inside the fire extinguishing device undergoes a rapid oxidation-reduction reaction, producing a large amount of inert gas from its solid state. This gas propels the aerosol extinguishing agent, perfluorohexanone extinguishing agent, or liquid nitrogen extinguishing agent directly out of the nozzle of the fire extinguishing device to extinguish the fire.

[0045] Reference Figure 2 , Figure 2 The diagram shown is a schematic of a fire extinguishing device for a whole vehicle fire provided by the present invention. Figure 2 As shown, the device includes: Monitoring module 201: It is used to monitor in real time whether there is a fire in a preset fire area of ​​the vehicle. The preset fire area includes: the power battery pack area, the vehicle chassis area and the engine compartment area.

[0046] Control module 202: If a fire is detected in any preset fire area, it activates the non-pressurized fire extinguishing equipment arranged in the corresponding fire area by at least one of the following methods: hot start, electrical start, or manual emergency start, so as to spray extinguishing agent through the non-pressurized fire extinguishing equipment to extinguish the fire in the corresponding fire area.

[0047] Furthermore, in one possible implementation, the control module is also used to automatically activate non-pressurized fire extinguishing equipment arranged in the battery pack area to extinguish the fire if a fire is determined to exist in the power battery pack area; Alternatively, if a fire is determined to exist in the power battery pack area, a composite detector connected to the fire extinguishing equipment is used to detect carbon monoxide gas, smoke, and temperature, and a composite judgment is made to generate an activation signal. The start signal is transmitted to the VCU and BMS; After receiving the start signal, the VCU sends a high-voltage cutoff signal to the PDU to cut off the high voltage, and then feeds back the signal after the high voltage cutoff to the BMS. The BMS activates non-pressurized fire suppression equipment located in the battery pack area to extinguish the fire. Alternatively, if a fire is confirmed in the area of ​​the power battery pack, the target object can remotely control the activation of fire extinguishing equipment; When the VCU receives the start signal, it sends a high-voltage cut-off signal to the PDU to cut off the high voltage, and then feeds back the signal after the high voltage is cut off to the BMS. The BMS activates the non-pressurized fire suppression equipment located in the battery pack area to extinguish the fire.

[0048] Furthermore, in one possible implementation, the control module is also used to automatically activate non-pressurized fire extinguishing equipment arranged in the vehicle chassis area to extinguish the fire if a fire is determined to exist in the vehicle chassis area; Alternatively, if a fire is confirmed to exist in the vehicle chassis area, the target can remotely control the activation of fire extinguishing equipment. When the VCU receives the start signal, the switch closes and uses the vehicle's battery to power the fire extinguishing equipment located in the vehicle chassis area to start the fire extinguishing equipment.

[0049] Furthermore, in one possible implementation, the control module is also used to automatically activate non-pressurized fire extinguishing equipment arranged in the engine compartment area to extinguish the fire if a fire is determined to exist in the engine compartment area using a linear detection component. Alternatively, if a fire is confirmed in the engine compartment area, a composite detector connected to the fire extinguishing equipment is used to detect carbon monoxide gas, smoke, and temperature, and a composite judgment is made to generate an activation signal. The start signal is transmitted to the VCU, and based on the VCU receiving the start signal, a high voltage cut-off signal is sent to the PDU to cut off the high voltage. The signal after the high voltage is cut off is fed back to the VCU, and the start signal is sent to the fire extinguishing equipment located in the engine compartment area so as to use the vehicle battery to start the fire extinguishing equipment to extinguish the fire. Alternatively, if a fire is confirmed in the engine compartment area, the target can remotely control the activation of fire extinguishing equipment. Based on the start signal received by the VCU, a high-voltage cutoff signal is sent to the PDU to cut off the high voltage. The signal after the high voltage is cut off is fed back to the VCU, and the start signal is sent to the fire extinguishing equipment located in the engine compartment area to start the fire extinguishing equipment using the vehicle battery to extinguish the fire.

[0050] Furthermore, in one possible implementation, the monitoring module is also used to monitor in real time whether there is a fire in each fire area according to the detection components distributed in the preset fire area. The detection components include: a linear thermal detection component and a temperature-sensitive thermal detection component. The linear thermal detection component includes: a thermal wire and an energy amplifier. The temperature-sensitive thermal detection component includes: a temperature-sensitive cable and a glass bulb. Specifically, the linear thermal detection component is used to detect the temperature inside the battery pack. If the temperature exceeds a first set range, it is determined that there is a fire in the power battery pack area. The temperature of the battery pack is continuously detected using a temperature-sensing thermal detection component. If the temperature of the battery pack continues to exceed the first set range and the temperature of the vehicle chassis area shows an increasing trend, it is determined that there is a fire in the vehicle chassis area. The temperature inside the engine compartment is detected using a linear thermal detection component. If the temperature exceeds a second set range, it is determined that there is a fire in the engine compartment area.

[0051] Furthermore, in one possible implementation, the control module is also used to utilize the gas generator or aerosol generator in the fire extinguishing equipment to undergo an oxidation-reduction reaction, generating an inert gas from a solid state, which propels the aerosol fire extinguishing agent, perfluorohexanone fire extinguishing agent, and liquid nitrogen fire extinguishing agent directly from the nozzle of the fire extinguishing equipment for fire extinguishing.

[0052] Furthermore, in one possible implementation, the control module is also used to receive a signal from the VCU that the fire extinguishing equipment has been activated; The VCU transmits the received signal that the fire extinguishing equipment has been activated to the instrument and / or T-BOX to alert the target.

[0053] Reference Figure 3 , Figure 3 The diagram shown is a schematic diagram of fire extinguishing for a vehicle fire provided by the present invention. Figure 3 As shown: The fire extinguishing method and system activation mode of the power battery consists of three parts: automatic fire extinguishing activated by the linear thermal detection component, automatic fire extinguishing activated by electric start, and manual emergency fire extinguishing activated.

[0054] The vehicle chassis fire extinguishing method and system activation mode consist of two parts: heat detection-activated fire extinguishing and manual emergency activation fire extinguishing.

[0055] The engine compartment fire extinguishing method and system activation mode consist of three parts: automatic fire extinguishing activated by the linear thermal detection component, automatic fire extinguishing activated by electric start, and manual emergency fire extinguishing activated.

[0056] The fire extinguishing method and system activation mode of the power battery consists of three parts: automatic fire extinguishing activated by the linear thermal detection component, automatic fire extinguishing activated by electric start, and manual emergency fire extinguishing activated.

[0057] The power battery fire extinguishing system is a non-pressurized fire extinguishing device that does not require an external power source, thus achieving pipeline-free transmission and valve operation. The medium inside the fire extinguishing device can be any one of aerosol generators, gas generators, perfluorohexanone extinguishing agents, or gas generators and liquid nitrogen extinguishing agents. Specifically, upon receiving a thermal or electrical start signal, the gas or aerosol generator inside the fire extinguishing device undergoes a rapid oxidation-reduction reaction, generating a large amount of inert gas from its solid state. This gas propels the aerosol extinguishing agent, perfluorohexanone extinguishing agent, or liquid nitrogen extinguishing agent directly out of the fire extinguishing device's nozzle to extinguish the fire. The fire extinguishing device is a fire extinguishing equipment.

[0058] 1. The linear thermal detection component activates automatic fire suppression: 1.1 Thermal runaway occurred in the battery cells inside the battery pack, causing the battery pack to catch fire.

[0059] 1.2 The fire extinguishing device is equipped with a linear thermal detection component to detect the temperature inside the battery pack. If the temperature exceeds 170°C ± 10°C, the linear thermal detection component automatically activates, subsequently triggering the fire extinguishing device to start extinguishing the fire. The dimensions of the fire extinguishing device do not exceed L200mm × W200mm × 30mm. The fire extinguishing device is not pressurized and is under normal pressure. The linear detection component includes: a thermal wire and an energy amplifier. The thermal wire serves as a fire detector, and the energy amplifier amplifies the energy of the thermal wire, causing a reaction between the aerosol generator and the gas generator in the fire extinguishing device.

[0060] 1.3 The fire extinguishing device is equipped with a feedback signal line, and the feedback signal is transmitted to the BMS after activation. 1.4 The BMS transmits the feedback signal to the VCU.

[0061] 1.5 The VCU transmits the feedback signal to the instrument and T-BOX, and the instrument and T-BOX display that the fire extinguishing device has been activated.

[0062] 2. Electrically activated automatic fire suppression: 2.1 Thermal runaway occurred in the battery cells inside the battery pack, causing the battery pack to catch fire.

[0063] 2.2 The composite detector connected to the fire extinguishing device detects carbon monoxide gas, smoke, and temperature, performs a composite judgment, and generates an activation signal.

[0064] 2.3 The start signal is transmitted to the BMS.

[0065] 2.4 The start signal is transmitted to the VCU.

[0066] 2.5 After receiving the start signal, the VCU sends a high-voltage cut-off signal to the PDU to cut off the high voltage.

[0067] 2.6 After the PDU cuts off the high voltage, it sends a feedback to the VCU, and then the VCU sends a feedback to the BMS.

[0068] 2.7 The BMS will execute the start signal, and the fire extinguishing device will be powered by the vehicle's small battery.

[0069] 2.8 The fire extinguishing device is automatically electrically activated to extinguish the fire.

[0070] 2.9 The fire extinguishing device is equipped with a feedback signal line, and the feedback signal is transmitted to the BMS after activation.

[0071] 2.10 The BMS transmits the feedback signal to the VCU.

[0072] 2.11 The VCU transmits the feedback signal to the instrument and T-BOX, and the instrument and T-BOX display that the fire extinguishing device has been activated.

[0073] 3. Manual emergency fire extinguishing: 3.1 Thermal runaway occurred in the battery cells inside the battery pack, causing the battery pack to catch fire.

[0074] 3.2 After the occupants leave the vehicle, the driver shall manually press the start button using the remote controller.

[0075] 3.3 The VCU receives the start signal and then sends a high-voltage cut-off signal to the PDU.

[0076] 3.4 After cutting off the high voltage, feedback is sent to the VCU.

[0077] 3.5 The VCU sends the start signal to the BMS.

[0078] 3.6 The BMS will execute the start signal, which will be powered by the vehicle's small battery to the fire extinguishing device, which will then be activated.

[0079] 3.7 The fire extinguishing device is equipped with a feedback signal line, and the feedback signal is transmitted to the BMS after activation.

[0080] 3.8 The BMS transmits the feedback signal to the VCU.

[0081] 3.9 The VCU transmits the feedback signal to the instrument and T-BOX, and the instrument and T-BOX display that the fire extinguishing device has been activated.

[0082] The vehicle chassis fire extinguishing method and system activation mode consist of two parts: heat detection-activated fire extinguishing and manual emergency activation fire extinguishing.

[0083] 1. Fire suppression is activated by heat detection: 1.1 After the battery pack caught fire, the fire spread to the combustibles in the chassis, causing the chassis to catch fire.

[0084] 1.2 When the temperature reaches the predetermined activation temperature threshold, the temperature-sensing thermal activation component activates. This component can be a temperature-sensing cable, a glass bulb, or a fusible metal. The switch closes, powering the 12V vehicle battery and activating fire extinguishing device 2 to extinguish the fire. The medium inside the fire extinguishing device can be any one of aerosol generators, perfluorohexanone extinguishing agents, liquid nitrogen extinguishing agents, or dry powder extinguishing agents. It should be noted that the chassis itself will not catch fire; the fire is ignited by the battery pack, which then ignites the flammable materials there. However, the fire extinguishing device inside the battery pack cannot extinguish this fire, so an additional fire extinguishing system is required.

[0085] 1.3 After the fire extinguishing device is activated, it sends a feedback signal to the VCU.

[0086] 1.4 The VCU transmits the feedback signal to the instrument and T-BOX, and the instrument and T-BOX display that the fire extinguishing device has been activated.

[0087] 2. Manual emergency fire extinguishing: 2.1 After the battery pack caught fire, the fire spread to the combustibles in the chassis, causing the chassis to catch fire.

[0088] 2.2 After the occupants leave the vehicle, the driver shall manually press the start button using the remote controller to send a signal to activate the fire extinguishing device.

[0089] 2.3 The VCU receives the activation signal of the fire extinguishing device.

[0090] 2.4 When the switch is closed, the 12V vehicle battery supplies power and activates the fire extinguishing device 2 to extinguish the fire.

[0091] 2.5 After the fire extinguishing device is activated, it sends a feedback signal to the VCU.

[0092] 2.6 The VCU transmits the feedback signal to the instrument and T-BOX, and the instrument and T-BOX display that the fire extinguishing device has been activated.

[0093] The engine compartment fire suppression method and system consists of three parts: automatic fire suppression initiated by the linear thermal detection component, automatic fire suppression initiated by electric start, and manual emergency fire suppression initiated by manual start.

[0094] 1. The linear thermal detection component activates automatic fire suppression: 1.1 A fire broke out in the engine compartment.

[0095] 1.2 The fire extinguishing device is equipped with a linear thermal detection component to detect the temperature inside the engine compartment. If the temperature exceeds 170°C ± 10°C, the linear thermal detection component will automatically activate, subsequently triggering the fire extinguishing device 3 to start extinguishing the fire. The medium inside the fire extinguishing device can be any one of aerosol generator, perfluorohexanone extinguishing agent, liquid nitrogen extinguishing agent, or dry powder extinguishing agent. The dimensions of the fire extinguishing device 3 shall not exceed L100mm × W100mm × 30mm. The fire extinguishing device is not pressurized and is under normal pressure.

[0096] 1.3 The fire extinguishing device 3 is equipped with a feedback signal line. After the fire extinguishing device is activated, it sends a feedback signal and transmits it to the VCU.

[0097] 1.4 The VCU transmits the feedback signal to the instrument and T-BOX, and the instrument and T-BOX display that the fire extinguishing device has been activated.

[0098] 2. Electrically activated automatic fire suppression: 2.1 A fire broke out in the engine compartment.

[0099] 2.2 The composite detector connected to the fire extinguishing device detects smoke and temperature, makes a composite judgment, and generates an activation signal.

[0100] 2.3 The start signal is transmitted to the VCU.

[0101] 2.4 After receiving the start signal, the VCU sends a high-voltage cut-off signal to the PDU to cut off the high voltage.

[0102] 2.5 After the PDU cuts off the high voltage, it feeds back to the VCU and sends a start signal to the fire extinguishing device 3, which is powered by the 12V vehicle battery.

[0103] 2.6 The fire extinguishing device is automatically electrically activated to extinguish the fire.

[0104] 2.7 The fire extinguishing device is equipped with a feedback signal line, and the feedback signal is transmitted to the VCU after activation.

[0105] 2.8 The VCU transmits the feedback signal to the instrument and T-BOX, and the instrument and T-BOX display that the fire extinguishing device has been activated.

[0106] 3. Manual emergency fire extinguishing: 3.1 A fire broke out in the engine compartment.

[0107] 3.2 After the occupants leave the vehicle, the driver shall manually press the emergency start button using the remote controller.

[0108] 3.3 The VCU receives the start signal and then sends a high-voltage cut-off signal to the PDU.

[0109] 3.4 After the high voltage is cut off, feedback is sent to the VCU, and a start signal is sent to the fire extinguishing device 3, which is powered by the 12V vehicle battery.

[0110] 3.5 The fire extinguishing device is automatically electrically activated to extinguish the fire.

[0111] 3.6 The fire extinguishing device is equipped with a feedback signal line, and the feedback signal is transmitted to the VCU after activation.

[0112] 3.7 The VCU transmits the feedback signal to the instrument and T-BOX, and the instrument and T-BOX display that the fire extinguishing device has been activated.

[0113] In summary, by employing a non-pressurized fire extinguishing device combined with a multi-level activation method, the initial fire of new energy vehicles can be quickly extinguished, effectively delaying the spread of the fire or extinguishing it, significantly extending the escape time for occupants, and preventing major safety accidents. At the same time, the fire extinguishing system is compact and convenient, can be easily installed on the vehicle, meets the requirements of lightweighting, and requires no maintenance, thus reducing operating costs.

[0114] The following reference Figure 4 To describe an electronic device 400 according to this embodiment of the present invention. Figure 4 The electronic device 400 shown is merely an example and should not impose any limitations on the functionality and scope of use of the embodiments of the present invention.

[0115] like Figure 4 As shown, the electronic device 400 is manifested in the form of a general-purpose computing device. The components of the electronic device 400 may include, but are not limited to: at least one processing unit 410, at least one storage unit 420, and a bus 430 connecting different system components (including storage unit 420 and processing unit 410).

[0116] The storage unit stores program code that can be executed by the processing unit 410, causing the processing unit 410 to perform the steps described in the "Embodiment Methods" section of this specification according to various exemplary embodiments of the present invention.

[0117] Storage unit 420 may include readable media in the form of volatile storage units, such as random access memory (RAM) 421 and / or cache memory 422, and may further include read-only memory (ROM) 423.

[0118] Storage unit 420 may also include a program / utility 424 having a set (at least one) of program modules 425, including but not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of these examples may include an implementation of a network environment.

[0119] Bus 430 can represent one or more of several types of bus structures, including a memory cell bus or memory cell controller, a peripheral bus, a graphics acceleration port, a processing unit, or a local bus using any of the various bus structures.

[0120] Electronic device 400 can also communicate with one or more external devices (e.g., keyboard, pointing device, Bluetooth device, etc.), one or more devices that enable a user to interact with electronic device 400, and / or any device that enables electronic device 400 to communicate with one or more other computing devices (e.g., router, modem, etc.). This communication can be performed via input / output (I / O) interface 450. Furthermore, electronic device 400 can also communicate with one or more networks (e.g., local area network (LAN), wide area network (WAN), and / or public networks, such as the Internet) via network adapter 460. As shown, network adapter 460 communicates with other modules of electronic device 400 via bus 430. It should be understood that, although not shown in the figures, other hardware and / or software modules can be used in conjunction with electronic device 400, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0121] From the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein can be implemented by software or by combining software with necessary hardware. Therefore, the technical solutions according to the embodiments of this disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (such as a CD-ROM, USB flash drive, external hard drive, etc.) or on a network, including several instructions to cause a computing device (such as a personal computer, server, terminal device, or network device, etc.) to execute the methods according to the embodiments of this disclosure.

[0122] According to the present disclosure, a computer-readable storage medium is also provided, on which a program product capable of implementing the methods described above is stored. In some possible embodiments, various aspects of the present invention can also be implemented as a program product comprising program code that, when the program product is run on a terminal device, causes the terminal device to perform the steps of the various exemplary embodiments of the present invention described in the "Exemplary Methods" section above.

[0123] refer to Figure 5 As shown, a program product 500 for implementing the above-described method according to an embodiment of the present invention is described. It may employ a portable compact disc read-only memory (CD-ROM) and include program code, and may run on a terminal device, such as a personal computer. However, the program product of the present invention is not limited thereto. In this document, the readable storage medium may be any tangible medium containing or storing a program that may be used by or in conjunction with an instruction execution system, apparatus, or device.

[0124] The program product may employ any combination of one or more readable media. A readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of readable storage media (a non-exhaustive list) include: an electrical connection having one or more wires, a portable disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0125] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, carrying readable program code. Such propagated data signals may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A readable signal medium may also be any readable medium other than a readable storage medium, capable of sending, propagating, or transmitting programs for use by or in conjunction with an instruction execution system, apparatus, or device.

[0126] The program code contained on the readable medium may be transmitted using any suitable medium, including but not limited to wireless, wired, optical fiber, RF, etc., or any suitable combination thereof.

[0127] Program code for performing the operations of this invention can be written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Java and C++, and conventional procedural programming languages ​​such as C or similar languages. The program code can execute entirely on the user's computing device, partially on the user's device, as a standalone software package, partially on the user's computing device and partially on a remote computing device, or entirely on a remote computing device or server. In cases involving remote computing devices, the remote computing device can be connected to the user's computing device via any type of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computing device (e.g., via the Internet using an Internet service provider).

[0128] Furthermore, the above figures are merely illustrative of the processes included in the method according to exemplary embodiments of the present invention, and are not intended to be limiting. It is readily understood that the processes shown in the above figures do not indicate or limit the temporal order of these processes. Additionally, it is readily understood that these processes may be executed synchronously or asynchronously, for example, in multiple modules.

[0129] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

[0130] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will 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 and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

Claims

1. A method for extinguishing a fire involving an entire vehicle, characterized in that, include: Real-time monitoring of whether there is a fire in the vehicle's preset fire areas, including: the power battery pack area, the vehicle chassis area, and the engine compartment area; If a fire is detected in any of the preset fire zones, the non-pressurized fire extinguishing equipment located in the corresponding fire zone will be activated by at least one of the following methods: hot start, electrical start, or manual emergency start, so that the fire extinguishing agent can be sprayed out by the non-pressurized fire extinguishing equipment to extinguish the fire in the corresponding fire zone.

2. The method according to claim 1, characterized in that, If a fire is detected in any preset fire zone, the non-pressurized fire extinguishing equipment located in the corresponding fire zone is activated by at least one of the following methods: hot start, electrical start, or manual emergency start, including: If a fire is detected in the power battery pack area, the non-pressurized fire extinguishing equipment located in the battery pack area will be automatically activated using the linear detection components to extinguish the fire. Alternatively, if a fire is determined to exist in the power battery pack area, a composite detector connected to the fire extinguishing equipment is used to detect carbon monoxide gas, smoke, and temperature, and a composite judgment is made to generate an activation signal. The start signal is transmitted to the VCU and BMS; After receiving the start signal, the VCU sends a high-voltage cutoff signal to the PDU to cut off the high voltage, and then feeds back the signal after the high voltage cutoff to the BMS. The BMS activates non-pressurized fire suppression equipment located in the battery pack area to extinguish the fire. Alternatively, if a fire is confirmed in the area of ​​the power battery pack, the target object can remotely control the activation of fire extinguishing equipment; When the VCU receives the start signal, it sends a high-voltage cut-off signal to the PDU to cut off the high voltage, and then feeds back the signal after the high voltage is cut off to the BMS. The BMS activates the non-pressurized fire suppression equipment located in the battery pack area to extinguish the fire.

3. The method according to claim 1, characterized in that, If a fire is detected in any preset fire zone, the non-pressurized fire extinguishing equipment located in the corresponding fire zone is activated by at least one of the following methods: hot start, electrical start, or manual emergency start, including: If a fire is detected in the vehicle chassis area, the non-pressurized fire extinguishing equipment located in the vehicle chassis area will be automatically activated by the heat detection component to extinguish the fire. Alternatively, if a fire is confirmed to exist in the vehicle chassis area, the target can remotely control the activation of fire extinguishing equipment. When the VCU receives the start signal, the switch closes and uses the vehicle's battery to power the fire extinguishing equipment located in the vehicle chassis area to start the fire extinguishing equipment.

4. The method according to claim 1, characterized in that, If a fire is detected in any preset fire zone, the non-pressurized fire extinguishing equipment located in the corresponding fire zone is activated by at least one of the following methods: hot start, electrical start, or manual emergency start, including: If a fire is confirmed in the engine compartment area, the non-pressurized fire extinguishing equipment located in the engine compartment area will be automatically activated using the linear detection components to extinguish the fire. Alternatively, if a fire is confirmed in the engine compartment area, a composite detector connected to the fire extinguishing equipment is used to detect carbon monoxide gas, smoke, and temperature, and a composite judgment is made to generate an activation signal. The start signal is transmitted to the VCU, and based on the VCU receiving the start signal, a high voltage cut-off signal is sent to the PDU to cut off the high voltage. The signal after the high voltage is cut off is fed back to the VCU, and the start signal is sent to the fire extinguishing equipment located in the engine compartment area so that the fire extinguishing equipment can be started using the vehicle battery to extinguish the fire. Alternatively, if a fire is confirmed in the engine compartment area, the target can remotely control the activation of fire extinguishing equipment. Based on the start signal received by the VCU, a high-voltage cutoff signal is sent to the PDU to cut off the high voltage. The signal after the high voltage is cut off is fed back to the VCU, and the start signal is sent to the fire extinguishing equipment located in the engine compartment area to start the fire extinguishing equipment using the vehicle battery to extinguish the fire.

5. The method according to claim 1, characterized in that, The real-time monitoring of whether a fire exists in the preset fire zone of the vehicle includes: The detection components distributed in the preset fire areas monitor in real time whether there is a fire in each fire area. The detection components include: a linear thermal detection component and a temperature-sensitive thermal detection component. The linear thermal detection component includes: a thermal wire and an energy amplifier. The temperature-sensitive thermal detection component includes: a temperature-sensitive cable and a glass bulb. Specifically, the linear thermal detection component is used to detect the temperature inside the battery pack. If the temperature exceeds a first set range, it is determined that there is a fire in the power battery pack area. The temperature of the battery pack is continuously detected using a temperature-sensing thermal detection component. If the temperature of the battery pack continues to exceed the first set range and the temperature of the vehicle chassis area shows an increasing trend, it is determined that there is a fire in the vehicle chassis area. The temperature inside the engine compartment is detected using a linear thermal detection component. If the temperature exceeds a second set range, it is determined that there is a fire in the engine compartment area.

6. The method according to claim 1, characterized in that, The method of extinguishing a fire in a corresponding fire area by spraying extinguishing agent through a non-pressurized fire extinguishing device includes: The fire extinguishing equipment utilizes a gas generator or aerosol generator to undergo an oxidation-reduction reaction, producing an inert gas from a solid state. This gas propels the aerosol extinguishing agent, perfluorohexanone extinguishing agent, and liquid nitrogen extinguishing agent directly out of the nozzle of the fire extinguishing equipment to extinguish the fire.

7. The method according to claim 1, characterized in that, If a fire is detected in any preset fire zone, the method of activating the non-pressurized fire extinguishing equipment located in the corresponding fire zone via at least one of the following methods: hot start, electrical start, or manual emergency start, includes: The VCU receives a signal indicating that the fire extinguishing equipment has been activated. The VCU transmits the received signal that the fire extinguishing equipment has been activated to the instrument and / or T-BOX to alert the target.

8. A fire extinguishing device for a whole vehicle fire, characterized in that, include: The monitoring module is used to monitor in real time whether there is a fire in a preset fire area of ​​the vehicle. The preset fire areas include: the power battery pack area, the vehicle chassis area, and the engine compartment area. The control module is used to activate, by means of at least one of hot start, electrical start or manual emergency start, the non-pressurized fire extinguishing equipment arranged in the corresponding fire area if a fire is detected in any preset fire area, so as to spray fire extinguishing agent through the non-pressurized fire extinguishing equipment to extinguish the fire in the corresponding fire area.

9. An electronic device, characterized in that, The electronic device includes: processor; A memory storing computer-readable instructions that, when executed by the processor, implement the method as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, It stores computer program instructions that, when executed by a computer, cause the computer to perform the method according to any one of claims 1 to 7.

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