Intelligent engine compartment fire extinguishing method and device and vehicle

Abstract

The invention discloses an intelligent fire extinguishing method and device for an engine compartment and a vehicle. Smoke and temperature conditions in the engine compartment are detected through a smoke detector and a temperature sensor; the vehicle-mounted controller receives and processes the smoke and temperature signals and judges whether fire hazards exist or not; when the fire hazard exists, an alarm signal is sent to a driver; after the driver confirms the fire, a fire extinguishing system is triggered; the dry powder exploder starts the dry powder fire extinguishing device to spray dry powder into the cabin; meanwhile, an engine waste gas controller is turned on, and engine waste gas is released into a cabin from a turbine at high speed and high pressure so as to isolate air. According to the system, cabin fire extinguishing is intelligently completed without opening a cabin hood, a sensor in a cabin automatically triggers a fire extinguishing device on the hood to extinguish fire, and a driver can also extinguish fire in a passenger compartment through one key.

Description

Technical Field

[0001] The present invention belongs to the technical field of vehicle fire extinguishing, and in particular relates to an intelligent engine compartment fire extinguishing method, device and vehicle. Background Art

[0002] To ensure driving safety, modern car engine hoods usually use a double locking mechanism design. The first locking mechanism is located in the driver's seat of the passenger compartment and needs to be opened by pulling the unlocking wire; the second lock is arranged at the front of the engine compartment (i.e. the front of the vehicle), and the operator must stand in front of the vehicle and reach into the engine compartment hood to unlock it through a special unlocking mechanism. However, this design will cause serious problems when the car engine compartment catches fire.

[0003] When a fire occurs in the engine compartment, it becomes extremely difficult to open the hood, which hinders the possibility of using a fire extinguisher to extinguish the fire. More seriously, once the fire spreads, the fuel system and pipeline harness system in the cabin may lead the fire to the passenger compartment, posing a huge threat to the safety of the occupants. Therefore, it is particularly important to develop a fire extinguishing method that does not require opening the cabin hood.

[0004] At present, the fire extinguishing method without opening the cabin mainly relies on existing firefighting tools, such as external self-detonating dry powder fire extinguishing balls. These fire extinguishing balls are usually placed in the cabin and stuck between various parts. However, due to the small space in the cabin and the lack of fixings, these fire extinguishing balls are easy to roll during the driving of the car, and there is a possibility of falling off from the gaps between the parts and being lost. In addition, the detonation of the fire extinguishing ball requires specific high temperature conditions, and the parts in the cabin may hinder its self-detonation range, resulting in insufficient dry powder spraying and poor fire extinguishing effect. Worse, if the fire extinguishing ball is not placed exactly near the fire point, it may not reach the temperature required for self-detonation, and thus completely lose its fire extinguishing function.

[0005] Another common fire extinguishing method is to open the cabin hood and use a portable dry powder fire extinguisher to manually extinguish the fire. However, this method is extremely risky. In the case of a fire in the cabin, the operator needs great courage to risk his life to open the hood and perform fire extinguishing operations. What is more noteworthy is that suddenly opening the cabin hood that has caught fire will introduce a large amount of air, which may cause the fire to become more intense, which is counterproductive.

[0006] In summary, the existing methods for extinguishing fires in the engine compartment of automobiles have many deficiencies and potential safety hazards. Therefore, developing a new method that does not require opening the engine compartment hood and can effectively and safely extinguish fires is of great significance for improving automobile safety and protecting the lives of passengers. Summary of the invention

[0007] In view of the defects in the prior art, the present invention provides an intelligent engine compartment fire extinguishing method, device and vehicle, which can intelligently complete the engine compartment fire extinguishing without opening the engine compartment hood. The present invention uses a sensor in the engine compartment to automatically trigger the fire extinguishing device on the hood to extinguish the fire, and the driver can also extinguish the fire with one button in the passenger compartment.

[0008] The present invention discloses an intelligent engine compartment fire extinguishing method, which detects the smoke and temperature conditions in the engine compartment through smoke detectors and temperature sensors; the vehicle-mounted controller receives and processes the smoke and temperature signals to determine whether there is a fire hazard; when it is determined that there is a fire hazard, an alarm signal is sent to the driver; after the driver confirms the fire, the fire extinguishing system is triggered; the dry powder initiator starts the dry powder fire extinguishing device to spray dry powder into the engine compartment; at the same time, the engine exhaust gas controller is turned on to release the engine exhaust gas from the turbine into the engine compartment at high speed and high pressure to isolate the air.

[0009] In a preferred embodiment of the present invention, after the dry powder fire extinguishing device is activated, the dry powder is sprayed into the cabin in a mist form.

[0010] In a preferred embodiment of the present invention, the driver triggers the fire extinguishing system by pressing a one-touch fire extinguishing button.

[0011] In a preferred embodiment of the present invention, the dry powder fire extinguishing device is arranged according to the flammable points of the engine compartment power assembly, the fuel system, and the pipeline system.

[0012] The present invention also discloses a device for implementing a vehicle-mounted intelligent fire extinguishing control method, comprising: a smoke detector, a temperature sensor, a vehicle-mounted controller, a dry powder initiator, and an engine exhaust gas controller; the smoke detector and the temperature sensor are installed in the center of the inner plate of the hood, and are used to detect the smoke and temperature in the cabin; the vehicle-mounted controller is connected to the smoke detector and the temperature sensor, and is used to receive and process smoke and temperature signals; the dry powder initiator is installed on the cabin hood, and is used to control the start-up of the dry powder fire extinguishing device; the engine exhaust gas controller is installed on the turbine intake pipe, and is used to control the discharge of engine exhaust gas into the cabin.

[0013] In a preferred embodiment of the present invention, it also includes a driver's one-touch fire extinguishing button, which is installed on the dashboard on the left side of the driver and is used to manually trigger the fire extinguishing system.

[0014] In a preferred embodiment of the present invention, the semi-solid die-casting aluminum process includes: a fire extinguishing mark and a backlight effect are provided on the driver's one-touch fire extinguishing button.

[0015] In a preferred embodiment of the present invention, the dry powder fire extinguishing device controlled by the dry powder initiator is installed in a plurality of hollow structures on the inner panel of the engine compartment cover.

[0016] In a preferred embodiment of the present invention, the sensor heads of the smoke detector and the temperature sensor extend out of the hood sound insulation pad and are located directly above the cabin space.

[0017] The invention also discloses a vehicle, comprising an intelligent engine compartment fire extinguishing device.

[0018] The beneficial effects of the present invention are as follows: the vehicle-mounted intelligent fire extinguishing system and its control method have made significant progress in improving fire extinguishing efficiency, enhancing safety and realizing intelligent control. It not only overcomes the limitations of traditional fire extinguishing methods, but also provides an innovative solution for the field of automobile safety, which has important practical significance and application value for improving the overall safety of vehicles and protecting the lives and property of passengers.

[0019] First, the present invention successfully achieves the function of extinguishing a fire in the cabin without opening the cabin hood. This innovation greatly improves the timeliness and safety of fire extinguishing, and effectively solves the problem that opening the hood in the traditional method may aggravate the fire. By pre-installing a dry powder fire extinguishing device in the cabin and combining it with an intelligent control system, the present invention can respond quickly at the early stage of a fire, greatly reducing the risk of fire spreading.

[0020] Secondly, the present invention has innovatively formed a fire extinguishing method that combines dry powder fire extinguishing and engine exhaust fire extinguishing. This dual fire extinguishing mechanism not only improves the efficiency of fire extinguishing, but also enhances the reliability of fire extinguishing. Dry powder fire extinguishing can quickly reduce the flame temperature and isolate oxygen, while the introduction of engine exhaust gas further enhances the effect of isolating oxygen, fundamentally cutting off the conditions for the spread of fire. This innovative combination significantly improves the success rate of fire extinguishing and provides more comprehensive safety protection for vehicles and passengers.

[0021] Finally, the present invention realizes the intelligent identification, judgment and execution of fire extinguishing control of automobile engine compartment fire. By integrating multiple sensing devices such as smoke detectors and temperature sensors, combined with advanced control algorithms, the system can quickly and accurately identify fire hazards, make timely judgments and automatically execute fire extinguishing procedures. This intelligent control not only greatly improves the reaction speed of fire extinguishing, but also reduces the possibility of human misjudgment, making the entire fire extinguishing process more efficient and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments disclosed in the present invention, the drawings of the embodiments will be briefly introduced below. These drawings are only used for illustrative purposes and are not intended to limit the protection scope of the present invention.

[0023] Figure 1 is a flow chart of the method of the present invention; Figure 2 It is a schematic diagram of the layout of the present invention; Figure 3 It is a schematic diagram of the structure of the present invention; Figure 4 It is a schematic diagram of the structure of the present invention; Figure 5 This is a schematic diagram of the interior of a vehicle body of the present invention; Figure 6 It is a schematic diagram of the engine exhaust gas controller of the present invention. DETAILED DESCRIPTION

[0024] The technical solution (including the preferred technical solution) of the present invention is further described in detail below by means of the accompanying drawings and by listing some optional embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] The purpose of the present invention is to provide a vehicle-mounted intelligent fire extinguishing device and a control method thereof to solve the problem of difficulty and high risk of fire extinguishing in the engine compartment of an automobile in the prior art. The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. like Figure 1 As shown, the vehicle-mounted intelligent fire extinguishing device of this embodiment includes a smoke detector 1, a temperature sensor 2, a vehicle-mounted controller 3, a dry powder initiator 4, an engine exhaust gas controller 5, a dry powder fire extinguishing device 6 and a driver's one-touch fire extinguishing button 7.

[0026] The smoke detector 1 and the temperature sensor 2 are both installed in the center of the inner panel of the hood. Specifically, the sensor heads of the smoke detector 1 and the temperature sensor 2 extend out of the hood sound insulation pad and are located directly above the cabin space. This installation position ensures that the sensors can detect smoke and temperature changes in the cabin in a timely and accurate manner.

[0027] The vehicle controller 3 is electrically connected to the smoke detector 1 and the temperature sensor 2 to receive and process signals from the two sensors. The vehicle controller 3 uses a high-performance microprocessor with complex signal processing and decision-making algorithms, which can quickly analyze sensor data and determine whether there is a fire hazard.

[0028] The dry powder detonator 4 is installed on the engine hood and connected to the dry powder fire extinguishing device 6. The specific installation of the dry powder fire extinguishing device 6 is as follows: multiple hollow structures are designed on the inner plate of the engine hood for installing the flat dry powder fire extinguishing device 6. According to the flammable points of the engine hood power assembly, fuel system, and pipeline system, several dry powder fire extinguishing devices 6 are arranged. In terms of structural design, it is ensured that after the dry powder device is detonated, the dry powder can be evenly sprayed in a mist. This design not only ensures the coverage of the fire extinguishing, but also improves the fire extinguishing efficiency.

[0029] The engine exhaust gas controller 5 is installed on the turbine air intake pipe and is connected to the exhaust gas exhaust pipe in the engine room. Its main function is to control whether the exhaust gas exhaust pipe discharges exhaust gas into the engine room, and plays an important role in isolating air during the fire extinguishing process.

[0030] The driver's one-touch fire extinguishing button 7 is installed on the instrument panel on the left side of the driver. The button is equipped with a striking fire extinguishing logo and a backlight effect, which is convenient for the driver to quickly identify and locate the button position at night. This humanized design greatly improves the operating efficiency in emergency situations.

[0031] The working process of the vehicle-mounted intelligent fire extinguishing system of this embodiment is as follows: Under normal driving conditions, the smoke detector 1 and the temperature sensor 2 continuously monitor the environment in the cabin.

[0032] When a fire hazard occurs, the smoke detector 1 first detects abnormal smoke and immediately sends an abnormal signal to the vehicle controller 3.

[0033] After receiving the abnormal smoke signal, the vehicle controller 3 immediately checks the data of the temperature sensor 2. By comprehensively analyzing the smoke and temperature data, the vehicle controller 3 determines whether there is indeed a fire hazard.

[0034] If the result of the determination is that there is a potential fire hazard, the onboard controller 3 immediately issues an alarm to the driver and displays a warning message on the instrument panel.

[0035] After receiving the alarm, the driver can further confirm it by observing the surrounding environment, smelling, etc. If it is confirmed that there is a fire, the driver can press the one-touch fire extinguishing button 7.

[0036] When the one-touch fire extinguishing button 7 is pressed, the onboard controller 3 immediately starts the fire extinguishing procedure: a) First, the controller activates the dry powder detonator 4 to detonate the dry powder fire extinguishing device 6 installed above the hood. The dry powder is sprayed evenly from the top of the cabin downward in a mist, covering the entire cabin space. b) At the same time, the controller starts the engine exhaust controller 5, opens the exhaust pipe, and releases the engine exhaust gas from the turbine at high speed and high pressure into the cabin, further isolating the air and suppressing the fire.

[0037] The fire extinguishing process lasts for a preset time, usually 30-60 seconds. During this period, the vehicle controller 3 continuously monitors the data of the smoke detector 1 and the temperature sensor 2 to evaluate the fire extinguishing effect.

[0038] After the fire is extinguished, the system will notify the driver through sound and light signals that the fire extinguishing operation is completed, and prompt the driver to stop and check in time.

[0039] If the sensor data shows that the fire is still not under control after the preset time, the system will automatically carry out a second round of fire extinguishing and notify the driver for further assistance.

[0040] Preferably, the present invention can realize multi-area temperature monitoring: In Example 1, only one temperature sensor is used. This embodiment adds multiple temperature sensors, which are installed in different areas of the engine compartment, such as near the fuel system, electrical system and exhaust system. This multi-point temperature monitoring can locate the heat source more accurately and improve the accuracy of fire judgment.

[0041] Preferably, the present invention can realize intelligent recognition algorithm upgrade: the software algorithm of the vehicle controller 3 is upgraded and machine learning technology is introduced. The system can more intelligently identify abnormal temperature fluctuations based on historical data and normal temperature distribution under different driving conditions, reducing the false alarm rate.

[0042] Preferably, the present invention can achieve an improvement in fire extinguishing agent: the fire extinguishing agent used in the dry powder fire extinguishing device 6 is optimized, and a new environmentally friendly dry powder fire extinguishing agent is used. This fire extinguishing agent not only has a higher fire extinguishing efficiency, but also has a lower corrosiveness to engines and electronic equipment, which is conducive to vehicle repair after a fire.

[0043] Preferably, the present invention can realize the zoning control of the fire extinguishing device: the control system of the dry powder fire extinguishing device 6 is refined to realize the zoning control. According to the different locations of the fire source, the system can selectively start the fire extinguishing device in the corresponding area, which not only improves the fire extinguishing efficiency, but also reduces unnecessary waste of dry powder.

[0044] Preferably, the present invention can achieve refined exhaust gas control: the control logic of the engine exhaust gas controller 5 is optimized. The system can accurately control the release amount and direction of the exhaust gas according to the severity and location of the fire to achieve the best suffocation and fire extinguishing effect.

[0045] Preferably, the present invention can optimize the human-machine interaction interface: the design of the driver's one-touch fire extinguishing button 7 is improved. In addition to the original backlight function, tactile feedback is added, so that the driver can operate accurately even when wearing gloves. At the same time, a visual interface is added to the central control screen to display the fire location and fire extinguishing progress in real time.

[0046] Through the above improvements, the on-board intelligent fire extinguishing system of this embodiment has been significantly improved in fire prevention, rapid response, precise fire extinguishing and subsequent processing, providing more comprehensive and reliable protection for vehicle safety.

[0047] Those skilled in the art will readily appreciate that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, combinations, replacements, improvements, etc. made within the spirit and principles of the present invention are included within the protection scope of the present invention.

Claims

1. An intelligent engine compartment fire extinguishing method, characterized in that: The smoke and temperature conditions in the cabin are detected by smoke detectors and temperature sensors; the on-board controller receives and processes smoke and temperature signals to determine whether there is a fire hazard; when it is determined that there is a fire hazard, an alarm signal is sent to the driver; after the driver confirms the fire, the fire extinguishing system is triggered; the dry powder initiator starts the dry powder fire extinguishing device to spray dry powder into the cabin; at the same time, the engine exhaust controller opens to release the engine exhaust gas from the turbine into the cabin at high speed and high pressure to isolate the air.

2. The intelligent engine compartment fire extinguishing method according to claim 1, characterized in that: After the dry powder fire extinguishing device is activated, the dry powder is sprayed into the cabin in the form of mist.

3. The intelligent engine compartment fire extinguishing method according to claim 2, characterized in that: The driver triggers the fire extinguishing system by pressing a one-touch fire extinguishing button.

4. The intelligent engine compartment fire extinguishing method according to claim 3, characterized in that: The dry powder fire extinguishing device is arranged according to the flammable points of the engine compartment power assembly, fuel system, and pipeline system.

5. A device for implementing the vehicle-mounted intelligent fire extinguishing control method according to any one of claims 1 to 4, characterized in that: include: Smoke detector, temperature sensor, vehicle-mounted controller, dry powder initiator, engine exhaust gas controller; the smoke detector and temperature sensor are installed in the center of the inner plate of the hood, and are used to detect the smoke and temperature in the cabin; the vehicle-mounted controller is connected to the smoke detector and the temperature sensor, and is used to receive and process smoke and temperature signals; the dry powder initiator is installed on the cabin hood, and is used to control the start-up of the dry powder fire extinguishing device; the engine exhaust gas controller is installed on the turbine intake pipe, and is used to control the discharge of engine exhaust gas into the cabin.

6. The intelligent engine compartment fire extinguishing device according to claim 5, characterized in that: It also includes a driver's one-touch fire extinguishing button, which is installed on the dashboard on the left side of the driver and is used to manually trigger the fire extinguishing system.

7. The intelligent engine compartment fire extinguishing device according to claim 1, characterized in that: The driver's one-touch fire extinguishing button is provided with a fire extinguishing mark and a backlight effect.

8. The intelligent engine compartment fire extinguishing device according to claim 1, characterized in that: The dry powder fire extinguishing device controlled by the dry powder initiator is installed in a plurality of hollow structures on the inner plate of the engine compartment cover.

9. The intelligent engine compartment fire extinguishing device according to claim 1, characterized in that: The sensor heads of the smoke detector and the temperature sensor extend out of the hood sound insulation pad and are located just above the cabin space.

10. A vehicle, characterized in that: It comprises an intelligent engine compartment fire extinguishing device as described in any one of claims 5 to 9.

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