A car falling into water rescue system and method, and a car

Abstract

This invention provides a vehicle submerged in water rescue system and method, and a vehicle, relating to the field of automotive technology. The vehicle submerged in water rescue system includes a bottom airbag, an airbag controller, and two top airbags mounted on the vehicle body. The bottom airbag is located at the bottom of the vehicle body, and the two top airbags are respectively located on the left and right sides of the top of the vehicle body. The airbag controller is used to control only the deployment of the bottom airbag, or to control the deployment of the bottom airbag and the two top airbags in different sequences. This vehicle submerged in water rescue system can handle both unflipped and flipped vehicles, resulting in better rescue effectiveness and a wider range of applications.

Description

Technical Field

[0001] This invention relates to the field of automotive technology, and more specifically, to a vehicle submerged in water rescue system and method, and a vehicle. Background Technology

[0002] As the number of private cars gradually increases, the number of traffic accidents also increases accordingly, and the forms of traffic accidents are diverse, with common forms including car collisions, car rollovers, and cars falling into water.

[0003] Especially in car accidents involving falling into water, the vehicle's internal electrical circuits are often short-circuited after the car falls into the water, which may cause problems such as some electronically controlled doors becoming unable to open. At the same time, because water exerts pressure on the car doors, it is extremely difficult to escape by opening the doors after the car has fallen into the water.

[0004] Therefore, some cars are now equipped with self-rescue devices for submerged vehicles, which typically include airbags located at the bottom of the car. When the car falls into water, these airbags automatically deploy, causing the car to float on the surface and ensuring that the occupants inside are at least above the water's surface and able to breathe. However, car submersion scenarios vary. If the car falls into water in an upside-down position (with the roof facing down), even if this type of self-rescue device floats the car, the occupants inside may still be unable to breathe. Summary of the Invention

[0005] The present invention aims to improve the rescue effectiveness of existing car-in-water self-rescue devices.

[0006] To address the aforementioned problems, this invention provides a vehicle submersion rescue system, comprising a bottom airbag, an airbag controller, and two top airbags mounted on the vehicle body. The bottom airbag is located at the bottom of the vehicle body, and the two top airbags are respectively located on the left and right sides of the top of the vehicle body. The airbag controller is used to control only the deployment of the bottom airbag, or to control the deployment of the bottom airbag and the two top airbags in different sequences.

[0007] The present invention provides a car submerged in water rescue system, which, compared with the prior art, has, but is not limited to, the following technical effects:

[0008] The car water rescue system includes a bottom airbag for buoying the car. When the car falls into the water without flipping over, that is, when the car falls into the water with the roof facing outwards, the airbag controller can control the bottom airbag to deploy only when the car just hits the water or just before it hits the water. The deployed bottom airbag will eventually drag the car to the surface of the water, providing breathing space for the occupants. When a car falls into water in a flipped-over position, the airbag controller can deploy one top airbag immediately upon impact or just before impact, followed by the deployment of another top airbag to right the car. For example, if the car falls in flipped-over with the left side higher than the right, the left top airbag can be deployed first. Upon contact with the water, this airbag creates buoyancy, causing the lower right side of the car to rotate downwards around the higher left airbag until the roof of the car faces outwards. Then, the other top airbag (the right top airbag) is deployed, causing the car to continue rotating until the deployed right top airbag is level with the deployed left airbag, thus righting the car. Once the car is right, the bottom airbags can be deployed to keep the car afloat, providing breathing space for the occupants. This car rescue system can handle both flipped and non-flipped car rescues, offering better rescue results and a wider range of applications.

[0009] Furthermore, the vehicle submersion rescue system also includes an image sensor, which is located on the windshield of the vehicle body;

[0010] And / or, the vehicle submersion rescue system further includes an ultrasonic sensor, which is disposed at the exterior rearview mirror of the vehicle body;

[0011] And / or, the vehicle submersion rescue system further includes an angle sensor, which is located at the center of the vehicle body.

[0012] Furthermore, the vehicle submerged rescue system also includes an emergency call controller and a manual switch, the manual switch being located inside the vehicle body and connected to the emergency call controller.

[0013] Furthermore, the bottom airbag includes a bottom left airbag and a bottom right airbag, the bottom left airbag being disposed at the left sill beam of the vehicle body, and the bottom right airbag being disposed at the right sill beam of the vehicle body.

[0014] Furthermore, the vehicle submersion rescue system also includes a first gas generator and a second gas generator. The first gas generator is located in the engine compartment of the vehicle body and is connected to the airbag controller and the bottom airbag respectively. The second gas generator is located in the trunk of the vehicle body and is connected to the airbag controller and the two top airbags respectively.

[0015] Furthermore, the top airbag, after deployment, has a strip-shaped structure, extends along the length of the vehicle body, and the two deployed top airbags are symmetrically arranged about the top center line of the vehicle body.

[0016] The present invention also provides a vehicle including the vehicle submerged in water rescue system as described above.

[0017] Since the technological improvements and effects of the vehicle are the same as those of the vehicle water rescue system, the vehicle will not be described in detail again.

[0018] The present invention also provides a method for rescuing a car that has fallen into water, based on the car rescue system described above, comprising:

[0019] When the vehicle body falls into the water to a set depth or when the water depth is greater than the calibrated depth, and when the vehicle body is not in a flipped state, the bottom airbags are deployed by the airbag controller.

[0020] When the vehicle body falls into the water to a set depth or when the water depth is greater than the calibrated depth, and when the vehicle body is in a flipped state, the airbag controller first controls one of the two top airbags to deploy, then controls the other of the two top airbags to open, so that the vehicle body is righted, and finally controls the bottom airbags to deploy.

[0021] The present invention provides a method for rescuing a car that has fallen into water, which is based on the aforementioned car rescue system. Therefore, the technical effect of this method is at least the same as that of the car rescue system, and the technical effect of the method will not be described further.

[0022] Furthermore, methods for rescuing a car that has fallen into water also include:

[0023] The system detects whether the vehicle is in a water-falling scenario using image sensors and / or map information of the vehicle itself.

[0024] The distance from the corresponding exterior rearview mirror to the water surface is detected by an ultrasonic sensor, and the tilt angle of the vehicle body is detected by an angle sensor. The water depth of the vehicle body is determined based on the distance from the water surface, the tilt angle of the vehicle body, h1, and h2, where h1 is the vertical height from the bottom of the vehicle body's tires to the exterior rearview mirror, and h2 is the vertical height from the roof of the vehicle body to the exterior rearview mirror; or, the water depth is detected by the ultrasonic sensor.

[0025] An angle sensor is used to detect whether the vehicle body is in a flipped-over state with the roof facing inwards towards the water surface.

[0026] Furthermore, when the vehicle body falls into the water to a set depth or when the water depth is greater than the calibrated depth, and when the vehicle body is in a flipped-over state, the airbag controller first controls one of the top left airbag and the top right airbag to deploy, and then controls the other of the top left airbag and the top right airbag to open, so as to right the vehicle body, including:

[0027] When the vehicle body falls into the water to the set depth or when the water depth is greater than the calibrated depth, and when the vehicle body is in a flipped state, the minimum distance value among the distances from the water detected by the four ultrasonic sensors located on the upper and lower sides of the two exterior rearview mirrors is obtained, and the exterior rearview mirror corresponding to the minimum distance value is designated as the first exterior rearview mirror, and the other exterior rearview mirror is designated as the second exterior rearview mirror.

[0028] When the minimum distance value is less than or equal to the set value, the top airbag on the same side as the second exterior rearview mirror is controlled to deploy so that the roof of the vehicle body faces the outside of the water surface.

[0029] The top airbag, located on the same side as the first exterior rearview mirror, is deployed to straighten the vehicle body.

[0030] Furthermore, methods for rescuing a car that has fallen into water also include:

[0031] When the bottom airbag deploys, the emergency call controller sends an electronic distress signal to the back end of the PTZ. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the rear view structure of a car according to an embodiment of the present invention;

[0033] Figure 2 This is a side view structural diagram of a car according to an embodiment of the present invention;

[0034] Figure 3 This is a top view of the structure of a car according to an embodiment of the present invention;

[0035] Figure 4 This is a schematic diagram of the various stages of the car body falling into the water when it is in a flipped state, according to an embodiment of the present invention.

[0036] Figure 5 This is a schematic diagram of the various stages of the vehicle body falling into the water when it is not in a flipped-over state, according to an embodiment of the present invention.

[0037] Figure 6 This is a flowchart illustrating the car-in-water rescue method according to an embodiment of the present invention. Figure 1 ;

[0038] Figure 7 This is a flowchart illustrating the car-in-water rescue method according to an embodiment of the present invention. Figure 2 .

[0039] Explanation of reference numerals in the attached figures:

[0040] 1. Vehicle body; 11. Exterior rearview mirror; 111. Exterior left rearview mirror; 112. Exterior right rearview mirror; 21. Bottom airbag; 211. Bottom left airbag; 212. Bottom right airbag; 22. Top airbag; 221. First top airbag; 222. Second top airbag; 231. First gas generator; 232. Second gas generator; 24. Airbag controller; 25. Emergency call controller; 26. Image sensor; 27. Ultrasonic sensor; 28. Angle sensor; 3. Water surface. Detailed Implementation

[0041] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0042] In the description of this invention, it should be understood that the terms "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0043] Furthermore, in the attached diagram, the X-axis represents the longitudinal direction, that is, the front-to-back direction, with the positive direction of the X-axis representing the front and the negative direction of the X-axis representing the back; in the attached diagram, the Y-axis represents the transverse direction, that is, the left-to-right direction, with the positive direction of the Y-axis representing the left and the negative direction of the Y-axis representing the right.

[0044] It should also be noted that the aforementioned X-axis and Y-axis representations are only for the purpose of facilitating the description of the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0045] See Figure 1 An embodiment of the present invention provides a car submerged rescue system, including a bottom airbag 21, an airbag controller 24, and two top airbags 22 disposed on a car body 1. The bottom airbag 21 is disposed at the bottom of the car body 1, and the two top airbags 22 are respectively disposed on the left and right sides of the top of the car body 1. The airbag controller 24 is used to control only the bottom airbag 21 to deploy, or to control the bottom airbag 21 and the two top airbags 22 to deploy in different sequences.

[0046] In this embodiment, the car water rescue system includes a bottom airbag 21 for buoying the car body 1. When the car body 1 falls into the water without flipping over, that is, when the car body 1 falls into the water with the roof facing outwards from the water surface 3, the airbag controller 24 can control the bottom airbag 21 to deploy when the car body 1 just falls into the water or just before it falls into the water. The deployed bottom airbag 21 will eventually drag the car body 1 to float on the water surface 3, providing breathing space for the occupants. When the car body 1 falls into the water in a flipped-over state, the airbag controller 24 can control one top airbag 22 to deploy immediately upon or just before the car body 1 falls into the water, and then control the other top airbag 22 to deploy, so that the car body 1 can be righted. For example, when the car body 1 falls into the water in a flipped-over state, with the left side higher than the right side, the left top airbag 22 can be deployed first. When the deployed left top airbag 22 touches the water, it will generate buoyancy for the car body 1 at this point, which will cause the lower right side of the car body 1 to rotate downward around the higher left top airbag 22 until the roof of the car body 1 faces the outside of the water surface 3. At this time, the other top airbag 22 (right top airbag 22) can be deployed, which will cause the car body 1 to continue to rotate until the deployed right top airbag 22 is level with the deployed left top airbag 22, thus achieving the righting of the car body. After the car body 1 is righted, the bottom airbag 21 can be deployed to float the car body 1 on the water surface 3, providing breathing space for the occupants. This car water rescue system can handle both unflipped and flipped car water rescues, resulting in better rescue effectiveness and a wider range of applications.

[0047] It should be noted that when the vehicle body 1 is in a flipped state, it means that the roof of the vehicle body 1 is facing outward from the water surface 3. When the vehicle body 1 is not in a flipped state, it means that the bottom of the vehicle body 1 is facing inward from the water surface 3.

[0048] See Figure 1-3 Optionally, the vehicle submersion rescue system further includes an image sensor 26, which is disposed on the windshield of the vehicle body 1.

[0049] And / or, the vehicle submersion rescue system further includes an ultrasonic sensor 27, which is disposed at the exterior rearview mirror 11 of the vehicle body 1.

[0050] And / or, the vehicle submersion rescue system further includes an angle sensor 28, which is located at the center of the vehicle body 1.

[0051] In this embodiment, the image sensor 26 can detect whether the vehicle body 1 is in a water-related scenario. If it is, it means that there is water around the vehicle body 1. Water-related scenarios include, but are not limited to, water falling into an underground garage, water falling into a bridge or underpass, water falling into a river, and flooding on urban roads. For example, if the vehicle body 1 is parked in an underground garage, water may accumulate in the garage due to rain. If there is water under the vehicle body 1, the image sensor 26 will identify that the vehicle is in a water-related scenario. Similarly, if the vehicle body 1 is parked on an urban road, water may accumulate on the road due to rain. If there is water under the vehicle body 1, the image sensor 26 will also identify that the vehicle is in a water-related scenario. For example, if the vehicle body 1 is traveling on a bridge or road and is involved in an accident and runs off the bridge or road, and there is water under both sides of the bridge or road, the image sensor 26 on the vehicle body 1 can also identify that the vehicle body 1 is in the corresponding water-related scenario. If the vehicle body 1 is not in any water-related scenario, the top airbag 22 and the bottom airbag 21 will remain in a non-deployed state. Furthermore, the image sensor 26 can be positioned at the top center of the windshield, meaning that the image sensor 26 can be a camera in the conventional vehicle body 1.

[0052] In this embodiment, the distance from the corresponding exterior rearview mirror 11 to the water surface 3 can be detected by the ultrasonic sensor 27, and the water depth can also be detected by the ultrasonic sensor 27. Furthermore, for example, there are four ultrasonic sensors 27, respectively located on the upper and lower sides of the two exterior rearview mirrors 11 of the vehicle body 1. When the vehicle body 1 is not overturned, the distance from the water or the water depth can be detected by the ultrasonic sensor 27 on the lower side of the exterior rearview mirror 11. When the vehicle body 1 is overturned, the distance from the water or the water depth can be detected by the ultrasonic sensor 27 on the upper side of the exterior rearview mirror 11. Regardless of whether the vehicle is overturned or not, if the vehicle body 1 is tilted (the two exterior rearview mirrors 11 are at different heights), for example, when the left exterior rearview mirror 11 is lower than the right exterior rearview mirror 11, the ultrasonic signal of the ultrasonic sensor 27 at the right exterior rearview mirror 11 may be blocked by the vehicle body 1. Therefore, in this case, the distance from the water or the water depth can be detected by the lower left ultrasonic sensor 27. Moreover, the placement of these four ultrasonic sensors 27 does not alter the structural design of the original vehicle body 1, making them highly adaptable. Furthermore, if the vehicle body 1 is involved in an accident, such as a side collision (among many accidents involving moving vehicles, side collisions are often the cause of vehicles veering off the road and into water), even if the exterior rearview mirrors 11 are damaged, usually only one side of the exterior rearview mirror 11 will be damaged; the other side's exterior rearview mirror 11 and the corresponding ultrasonic sensor 27 will remain intact and can be used to detect data.

[0053] In this embodiment, an angle sensor 28 is also included, which is located at the center of the vehicle body 1 to facilitate the detection of the tilt angle of the vehicle body 1. Moreover, the angle sensor 28 is located at this position so that the vehicle body 1 is less likely to be damaged in the event of an accident.

[0054] In this embodiment, by setting up sensors such as image sensor 26, ultrasonic sensor 27 and angle sensor 28, more and more accurate relevant data can be detected, which can play a better role in the rescue of the vehicle body 1. Moreover, these sensors are commonly used sensors and have low cost.

[0055] Optionally, the vehicle submerged rescue system further includes an emergency call controller 25 and a manual switch, wherein the manual switch is located inside the vehicle body 1 and is connected to the emergency call controller 25.

[0056] In this embodiment, after the bottom airbag 21 deploys, the emergency call controller 25 can also spontaneously send electronic call information to the gimbal rear end of the vehicle body 1. This electronic call information may include at least one of the following: the location information of the vehicle body 1, water level information, and vehicle posture information. Personnel at the gimbal rear end can use this information to determine whether to initiate rescue operations. Of course, the vehicle body 1 also has a manual switch, which occupants can manually activate. After activation, the emergency call controller 25 will also send electronic call information to the gimbal rear end of the vehicle body 1.

[0057] See Figure 1-3 Optionally, the bottom airbag 21 includes a bottom left airbag 211 and a bottom right airbag 212. The bottom left airbag 211 is arranged at the left door sill beam of the vehicle body 1, and the bottom right airbag 212 is arranged at the right door sill beam of the vehicle body 1.

[0058] In this embodiment, for the electric vehicle, the bottom left airbag 211 and the bottom right airbag 212 are respectively located between the battery pack and the left and right side door sill beams, without requiring any changes to the original design structure of the electric vehicle. The two top airbags 22 can be respectively located within the frames on the left and right sides of the sunroof, without requiring any changes to the original structure of the vehicle.

[0059] See Figure 3 Optionally, the vehicle submersion rescue system further includes a first gas generator 231 and a second gas generator 232. The first gas generator 231 is located in the engine compartment of the vehicle body 1 and is connected to the airbag controller 24 and the bottom airbag 21 respectively. The second gas generator 232 is located in the trunk of the vehicle body 1 and is connected to the airbag controller 24 and the two top airbags 22 respectively.

[0060] In this embodiment, the airbag controller 24 can control the first gas generator 231 to inflate the bottom airbag 21, thereby controlling the deployment of the bottom airbag 21. The airbag controller 24 can also control the second gas generator 232 to inflate one of the top airbags 22. The second gas generator 232 can inflate one of the top airbags 22 first, then the other, instead of both airbags simultaneously. In this embodiment, the two gas generators are located in the engine compartment and the trunk, respectively, without altering the original design structure of the vehicle body 1.

[0061] See Figure 3Optionally, the top airbag 22 is arranged in a strip-shaped structure after deployment. The deployed top airbag 22 extends along the length direction of the vehicle body 1, and the two deployed top airbags 22 are symmetrically arranged about the top center line of the vehicle body 1.

[0062] The present invention also provides a vehicle including the vehicle submerged in water rescue system as described above.

[0063] Since the technological improvements and effects of the vehicle are the same as those of the vehicle water rescue system, the vehicle will not be described in detail again.

[0064] See Figure 6 The present invention also provides a method for rescuing a car that has fallen into water, based on the car rescue system described above, comprising:

[0065] When the vehicle body 1 falls into the water to a set depth or when the water depth is greater than the calibrated depth, and when the vehicle body 1 is not in a flipped state, the bottom airbag 21 is deployed by the airbag controller 24.

[0066] When the vehicle body 1 falls into the water to a set depth or when the water depth is greater than the calibrated depth, and when the vehicle body 1 is in a flipped state, the airbag controller 24 first controls one of the two top airbags 22 to deploy, then controls the other of the two top airbags 22 to open, so that the vehicle body 1 is righted, and finally controls the bottom airbag 21 to deploy.

[0067] The present invention provides a method for rescuing a car that has fallen into water, which is based on the aforementioned car rescue system. Therefore, the technical effect of this method is at least the same as that of the car rescue system, and the technical effect of the method will not be described further.

[0068] Alternatively, methods for rescuing a car that has fallen into water also include:

[0069] The system detects whether the vehicle body 1 is in a water-falling scenario using image sensor 26 and / or map information of the vehicle body 1.

[0070] The distance from the corresponding exterior rearview mirror 11 to the water surface 3 is detected by ultrasonic sensor 27, and the tilt angle of the vehicle body 1 is detected by angle sensor 28. The water depth of the vehicle body 1 is determined based on the distance from the water, the tilt angle of the vehicle body 1, h1, and h2, where h1 is the vertical height from the bottom of the tire of the vehicle body 1 to the exterior rearview mirror 11, and h2 is the vertical height from the roof of the vehicle body 1 to the exterior rearview mirror 11; or, the water depth is detected by ultrasonic sensor 27.

[0071] The angle sensor 28 detects whether the vehicle body 1 is in a flipped state with the roof facing the inside of the water surface 3.

[0072] It should be noted that, regardless of the aforementioned car-in-water rescue system or the car-in-water rescue method of this embodiment, the car and the water surface 3 are in relative motion, regardless of the specific water-in-water scenario. This relative motion can be categorized into two situations. The first situation is when the car is stationary (parked in an underground garage or on a city road), while the water surface 3 gradually rises and tends to submerge the car (the car is submerged). The second situation is when a moving car, due to an accident, runs off the road or bridge and is about to plunge into a nearby river (in this case, the river surface 3 is fixed, and the car is moving).

[0073] Regardless of the relative motion, in this embodiment, the distance (distance from water) between the exterior rearview mirror 11 on the vehicle body 1 and the water surface 3 gradually changes from a large value to zero, or even a negative value (a negative value indicates that the corresponding exterior rearview mirror 11 has completely sunk into the water surface 3). The greater the overall depth of the vehicle body 1 in the water, the smaller the distance from water. Therefore, the airbag controller 24 can determine whether to deploy the airbags based on the depth of the vehicle body 1 in the water. When the depth of the vehicle body 1 in the water reaches the set depth, the airbags can be deployed. The specific airbags to be deployed depends on whether the vehicle body 1 is in a flipped state, detected by the angle sensor 28. If it is in a flipped state, the airbag controller 24 first deploys one of the two top airbags 22, then deploys the other of the two top airbags 22 to straighten the vehicle body 1, and finally deploys the bottom airbag 21. If the vehicle body 1 is not in a flipped state, only the bottom airbag 21 needs to be deployed. The depth of the vehicle body 1 in the water can be calculated based on the distance from the water, the tilt angle of the vehicle body 1, h1, and h2. For example, Figure 5 As shown, h1 is the vertical height from the bottom of the tire to the exterior rearview mirror 11 when the vehicle body 1 is in a normal position, and h2 is the vertical height from the roof of the vehicle body 1 to the exterior rearview mirror 11 when the vehicle body 1 is in a normal position. This is because h1 and h2 are both fixed. The tilt angle of the vehicle body 1 can be detected by the angle sensor 28, and the distance from the water can be detected by the ultrasonic sensor 27. Based on these parameters, the depth of immersion in water can be calculated, and even if there is some error, it is within the allowable error range. Of course, in other embodiments, the detection or calculation of the depth of immersion in water can use existing technology.

[0074] Alternatively, the airbag controller 24 can determine whether to deploy the airbags without relying on the water depth. Instead, it can determine the deployment based on the distance from the water detected by the ultrasonic sensor 27 at the exterior rearview mirror 11. When the minimum distance from the water decreases to less than a first threshold, it indicates that the water surface 3 is extremely close to the lowest position of the exterior rearview mirror 11, meaning that part of the vehicle body 1 has been submerged. At this point, the airbag controller 24 can control the airbags to deploy. As for which airbag to deploy, as mentioned earlier, it is also necessary to determine whether the vehicle body 1 is in a flipped-over state. The aforementioned "when the vehicle body 1 falls into the water to a set depth" includes: when the minimum distance from the water (minimum distance value) is less than the first threshold.

[0075] In addition, regardless of the relative motion, if the water depth is greater than the calibrated depth, it means that the conventional car will sink completely or most of the way into the water after falling in, posing a danger to the occupants. In this case, the airbag controller 24 can also determine whether to deploy the airbag based on the water depth. If the water depth (which can be detected by the ultrasonic sensor 27) is greater than the calibrated depth, the airbag controller 24 controls the airbag to deploy. As for which airbag to deploy, as mentioned above, it is also necessary to determine whether the car body 1 is in a flipped state.

[0076] See Figure 7 Optionally, when the vehicle body 1 falls into the water to a set depth or when the water depth is greater than the calibrated depth, and when the vehicle body 1 is in a flipped state, the airbag controller 24 first controls one of the top left airbag and the top right airbag to deploy, and then controls the other of the top left airbag and the top right airbag to open, so as to restore the vehicle body 1 to its upright position, including:

[0077] When the vehicle body 1 falls into the water to the set depth or when the water depth is greater than the calibrated depth, and when the vehicle body 1 is in a flipped state, the minimum distance value among the distances from the water detected by the four ultrasonic sensors 27 is obtained, and the exterior rearview mirror 11 corresponding to the minimum distance value is designated as the first exterior rearview mirror, and the other exterior rearview mirror 11 is designated as the second exterior rearview mirror.

[0078] When the minimum distance value is less than or equal to the set value, the top airbag 22, which is on the same side as the second exterior rearview mirror, is controlled to deploy so that the roof of the vehicle body 1 faces the outside of the water surface 3.

[0079] The top airbag 22, which is located on the same side as the first exterior rearview mirror, is deployed to straighten the vehicle body 1.

[0080] In this embodiment, when the vehicle body 1 falls into the water to a set depth or when the water depth is greater than the calibrated depth, and when the vehicle body 1 is in a flipped state, the minimum distance value among the distances from the water detected by the four ultrasonic sensors 27 is first obtained, and the exterior rearview mirror 11 corresponding to the minimum distance value is designated as the first exterior rearview mirror, and the other exterior rearview mirror 11 as the second exterior rearview mirror; when the minimum distance value is less than or equal to the set value, the top airbag 22 on the same side as the second exterior rearview mirror is deployed, so that the roof of the vehicle body 1 faces outwards from the water surface 3; the top airbag 22 on the same side as the first exterior rearview mirror is also deployed, so that the vehicle body 1 returns to its upright position. Figure 4 To illustrate, referring to the various states of the car and the positions of the left and right exterior rearview mirrors 111 and 112 in each state, the explanation of the car's rollover state is as follows: Since the top airbag 22, after deployment, has a strip-like structure, extending along the length of the car body 1, and the two deployed top airbags 22 are symmetrically arranged about the top centerline of the car body 1, therefore, in state (a) before the car body 1 falls into the water, if the ultrasonic sensor 27 detects that the water depth is greater than the calibrated depth, or in state (b) the calculated water depth has reached the set depth, then in state (a)... In state (b), the top airbag 22 on the side of the second exterior rearview mirror (referred to as the first top airbag 221) is opened. The car body 1 will then rotate from state (b) to state (c) under the buoyancy provided by the first top airbag 221, so that the roof faces the outside of the water surface 3. At this time, another top airbag 22 (referred to as the second top airbag 222) can be opened. The car body 1 will gradually return to the correct position from state (c) to state (d). After returning to the correct position, the bottom left airbag 211 and the bottom right airbag 212 can be controlled to deploy simultaneously, thereby lifting the car body 1 upward to state (e). The first top airbag 221 and the second top airbag 222 can be smaller than the bottom left airbag 211 or the bottom right airbag 212 after deployment. The first top airbag 221 and the second top airbag 222 mainly serve to adjust the position of the vehicle body 1, while the bottom left airbag 211 and the bottom right airbag 212 mainly serve to support the vehicle body 1.

[0081] When the vehicle body 1 falls into the water to a set depth or when the water depth is greater than the calibrated depth, and when the vehicle body 1 is not in a flipped-over state, the airbag controller 24 controls the bottom airbag 21 to deploy. Figure 5Example illustration: Referring to the various states of the car and the positions of the left and right side mirrors 111 and 112 in each state, the following is an explanation of the state when the car has not overturned: (a) When it is detected that the car body 1 has fallen into the water to a set depth or when the water depth is greater than the calibrated depth, the bottom left airbag 211 and bottom right airbag 212 are deployed simultaneously. In (a) state, the deployed bottom left airbag 211 first contacts the water surface 3 and generates buoyancy. Under this buoyancy, the car body 1 will rotate around the deployed bottom left airbag 211 to the upright position, that is, rotate to the (b) state. The deployed bottom right airbag 212 also contacts the water surface 3 and generates buoyancy, and finally the car body 1 floats on the water surface 3 in an upright posture. Of course, in other embodiments, if the inertial force of the car body 1 is very large, even if the bottom left airbag 211 and bottom right airbag 212 are deployed before falling into the water, the huge inertial force will still cause the car body 1 to completely sink below the water surface 3 before stopping. In order to make the car body more upright when it is below the water surface 3 in this case, the bottom left airbag 211 and bottom right airbag 212 can be deployed at the same time, and the low-position top airbag 22 can be deployed at the same time. After the car body is upright, the other top airbag 22 can be deployed.

[0082] Optionally, the vehicle-to-water rescue method further includes: when the bottom airbag 21 deploys, the emergency call controller 25 sends an electronic distress signal to the rear end of the gimbal. Here, after the bottom airbag 21 deploys, the emergency call controller 25 can also spontaneously send an electronic distress signal to the rear end of the gimbal of the vehicle body 1. This electronic distress signal may include at least one of the vehicle body 1's location information, water level information, and vehicle posture information. Personnel at the rear end of the gimbal can use this information to determine whether to initiate rescue operations.

[0083] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" and "second" may explicitly or implicitly include at least one of those features.

[0084] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A car submersion rescue system, characterized in that, The system includes a bottom airbag (21), an airbag controller (24), and two top airbags (22) mounted on the vehicle body (1). The bottom airbag (21) is located at the bottom of the vehicle body (1), and the two top airbags (22) are located on the left and right sides of the top of the vehicle body (1). The airbag controller (24) is used to control only the bottom airbag (21) to deploy, or to control the bottom airbag (21) and the two top airbags (22) to deploy in different sequences. The vehicle submerged rescue system also includes an ultrasonic sensor (27), which is located at the exterior rearview mirror (11) of the vehicle body (1). The ultrasonic sensor (27) detects the distance from the corresponding exterior rearview mirror (11) to the water surface (3); When the vehicle body (1) falls into the water to a set depth or when the water depth is greater than the calibrated depth, and when the vehicle body (1) is in a flipped state, the minimum distance value among the distances from the water detected by the four ultrasonic sensors (27) located on the upper and lower sides of the two exterior rearview mirrors is obtained, and the exterior rearview mirror (11) corresponding to the minimum distance value is designated as the first exterior rearview mirror, and the other exterior rearview mirror (11) is designated as the second exterior rearview mirror; When the minimum distance value is less than or equal to the set value, the airbag controller (24) is used to receive the minimum distance value signal and control the top airbag (22) located on the same side as the second exterior rearview mirror to deploy so that the roof of the vehicle body (1) faces the outside of the water surface (3); The airbag controller (24) is used to receive the minimum distance value signal and control the top airbag (22) located on the same side as the first exterior rearview mirror to deploy so that the body of the vehicle (1) is straightened.

2. The car submersion rescue system according to claim 1, characterized in that, It also includes an image sensor (26), which is disposed on the windshield of the vehicle body (1); And / or, the vehicle submersion rescue system further includes an angle sensor (28) located at the center of the vehicle body (1).

3. The car submersion rescue system according to claim 1, characterized in that, It also includes an emergency call controller (25) and a manual switch, the manual switch being located inside the vehicle body (1) and connected to the emergency call controller (25).

4. The car submersion rescue system according to claim 1, characterized in that, The bottom airbag (21) includes a bottom left airbag (211) and a bottom right airbag (212). The bottom left airbag (211) is located at the left door sill of the vehicle body (1), and the bottom right airbag (212) is located at the right door sill of the vehicle body (1).

5. The car submersion rescue system according to claim 1, characterized in that, It also includes a first gas generator (231) and a second gas generator (232). The first gas generator (231) is located in the engine compartment of the vehicle body (1) and is connected to the airbag controller (24) and the bottom airbag (21) respectively. The second gas generator (232) is located in the trunk of the vehicle body (1) and is connected to the airbag controller (24) and the two top airbags (22) respectively.

6. The car submersion rescue system according to claim 1, characterized in that, The top airbag (22) is a strip structure after it is deployed. The deployed top airbag (22) extends along the length of the vehicle body (1), and the two deployed top airbags (22) are symmetrically arranged about the top center line of the vehicle body (1).

7. A method for rescuing a car that has fallen into water, based on the car rescue system as described in any one of claims 1-6, characterized in that, include: When the vehicle body (1) falls into the water to a set depth or when the water depth is greater than the calibrated depth, and when the vehicle body (1) is not in a flipped state, the bottom airbag (21) is deployed by the airbag controller (24). When the vehicle body (1) falls into the water to a set depth or when the water depth is greater than the calibrated depth, and when the vehicle body (1) is in a flipped state, the airbag controller (24) first controls one of the two top airbags (22) to deploy, then controls the other of the two top airbags (22) to open, so that the vehicle body (1) is upright, and finally controls the bottom airbag (21) to deploy.

8. The method for rescuing a car that has fallen into water according to claim 7, characterized in that, Also includes: The system detects whether the vehicle body (1) is in a water-falling scenario using the image sensor (26) and / or the map information of the vehicle body (1); The tilt angle of the vehicle body (1) is detected by the angle sensor (28), and the water depth of the vehicle body (1) is determined according to the distance from the water, the tilt angle of the vehicle body (1), h1 and h2, where h1 is the vertical height from the bottom of the tire of the vehicle body (1) to the exterior rearview mirror (11), and h2 is the vertical height from the roof of the vehicle body (1) to the exterior rearview mirror (11); or, the water depth is detected by the ultrasonic sensor (27). The angle sensor (28) detects whether the vehicle body (1) is in a flipped state with the roof facing the inside of the water surface (3).

9. A car, characterized in that, Including the vehicle submersion rescue system as described in any one of claims 1-6.

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