Vehicle falling-into-water detection structure

Abstract

The utility model provides a vehicle drowning detection structure, which relates to the technical field of vehicle safety, and comprises a detection part and an auxiliary part arranged on the side surface of the detection part, the detection part comprises a detection cabin and a pressure sensor arranged in the detection cabin, the side wall of the detection cabin is provided with a through hole, and the auxiliary part comprises a base and a humidity sensor arranged on the base. The plurality of humidity sensors are uniformly arranged around the detection part, and the pressure sensor is electrically connected with the humidity sensors. The device is simple in structure, the vehicle water falling condition can be obtained only through common induction of the humidity sensors and the pressure sensor, the humidity sensors evenly surround the pressure sensor, water falling data detection is stable, the water falling detection sensor is arranged in the bin body for effective protection, and the device can be arranged at any vehicle body height for use; influences of external collision, dust and water splashing are avoided, and vehicle falling-into-water detection errors are effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of vehicle safety technology, and in particular, it relates to a vehicle submersion detection structure. Background Technology

[0002] Currently, with the development of technology, intelligent driving has gained significant attention in both scientific research and commercial fields, and its optimization of vehicle traffic safety has sparked widespread discussion. Intelligent driving includes fully intelligent driving (autonomous driving) and semi-intelligent driving (assisted driving), but regardless of the type, the focus is on the vehicle's intelligent technology, namely, the vehicle's various onboard sensors that detect the surrounding environment and then make driving decision suggestions.

[0003] Among the various aspects of vehicle environment sensing, the wading depth of a vehicle is particularly important to prevent incidents where passengers are unable to escape after the vehicle falls into the water. This is primarily achieved by installing sensors on the vehicle to detect water conditions, effectively obtaining the wading depth. To further improve the safety of vehicles wading through water, a comprehensive judgment technology targeting both wading depth and direction of descent has been proposed. For example, Chinese invention patent CN108973895A provides a vehicle wading detection method, system, and vehicle. The vehicle wading detection method includes: detecting the vehicle's posture; detecting the reference water level between the vehicle's reference position and the water surface; and determining the highest water level relative to the vehicle based on the vehicle's posture and the reference water level. The highest water level refers to the distance from the highest point of the water surface relative to the vehicle along the vertical direction from the vehicle's reference position. This invention can easily and conveniently determine whether a vehicle can safely and reliably pass through puddles and other road surfaces, thus ensuring driving safety. Furthermore, this system is unaffected by changes in vehicle chassis height, whether the vehicle is unloaded or loaded. Regardless of changes in chassis height, it can accurately detect vehicle wading, offering the advantages of accurate and reliable wading detection.

[0004] However, the above-mentioned vehicle wading detection methods still have the following drawbacks: the wading detection equipment needs to obtain the vehicle's ECU information to know the wading depth of the vehicle, and the wading detection equipment is frequently immersed in the water, resulting in the wading detection equipment being installed at a low height. The wading detection equipment at this height is more affected by external collisions, dust and splashes, which often leads to detection errors in vehicle wading detection.

[0005] Therefore, in order to solve the above problems, it is necessary for us to design a vehicle submersion detection structure. Utility Model Content

[0006] The purpose of this invention is to provide a vehicle submersion detection structure. The structure is simple and can obtain information about a vehicle being submerged in water by using only a humidity sensor and a pressure sensor. Multiple humidity sensors are evenly arranged around the pressure sensor, ensuring stable submersion data detection. The submersion detection sensor is effectively protected by being housed inside the compartment and can be placed at any location on the vehicle body without being affected by external collisions, dust, or splashes of water. This effectively reduces the error in vehicle submersion detection.

[0007] To achieve the above objectives, this utility model employs the following technical solution:

[0008] A vehicle submersion detection structure includes a detection unit and an auxiliary unit disposed on the side of the detection unit. The detection unit includes a detection chamber and a pressure sensor disposed inside the detection chamber. The side wall of the detection chamber is provided with a through hole. The auxiliary unit includes a base and a humidity sensor disposed on the base. A plurality of humidity sensors are evenly arranged around the detection unit. The pressure sensor and the humidity sensor are electrically connected.

[0009] As a preferred embodiment of this utility model, it also includes a mounting plate, on which both the detection part and the auxiliary part are mounted, and a mounting wing plate is provided on the side of the mounting plate.

[0010] As a preferred embodiment of the present invention, the mounting plate is a generally vertically arranged rectangular plate, and the mounting wing plate includes a first wing plate located above the mounting plate, a second wing plate located below the mounting plate, a third wing plate located on the side of the mounting plate, and a fourth wing plate located on the side of the mounting plate away from the third wing plate.

[0011] As a preferred embodiment of this utility model, the first wing plate, the second wing plate, the third wing plate and the fourth wing plate are located on the same plane, the mounting plate is arranged parallel to the mounting wing plate, and the detection part and the auxiliary part are both arranged on the side of the mounting plate close to the mounting wing plate.

[0012] As a preferred embodiment of this utility model, the first wing plate is connected to the mounting plate via a first connecting plate, the second wing plate is connected to the mounting plate via a second connecting plate, the third wing plate is connected to the mounting plate via a third connecting plate, and the fourth wing plate is connected to the mounting plate via a fourth connecting plate.

[0013] As a preferred embodiment of this utility model, the first connecting plate, the second connecting plate, the third connecting plate, and the third connecting plate are all inclined.

[0014] As a preferred embodiment of the present invention, the humidity sensor includes a first sensor facing the gap between the first connecting plate and the third connecting plate, a second sensor facing the gap between the first connecting plate and the fourth connecting plate, a third sensor facing the gap between the second connecting plate and the third connecting plate, and a fourth sensor facing the gap between the second connecting plate and the fourth connecting plate.

[0015] As a preferred embodiment of this invention, the mounting plate is provided with a shock-absorbing pad.

[0016] As a preferred embodiment of this invention, the number of both the detection unit and the auxiliary unit is at least three.

[0017] As a preferred embodiment of this invention, a dustproof mesh is provided at the through hole.

[0018] The beneficial effects of this utility model of a vehicle water-fall detection structure are as follows: the structure is simple, and the vehicle water-fall situation can be obtained by sensing the humidity sensor and the pressure sensor together. Multiple humidity sensors are evenly surrounded around the pressure sensor, the water-fall data detection is stable, the water-fall detection sensor is set in the compartment for effective protection, it can be set in any position on the vehicle body and will not be affected by external collisions, dust and splashing water, and the vehicle water-fall detection error is effectively reduced.

[0019] Furthermore, multiple vehicle submersion detection structures are installed around the vehicle body. These multiple vehicle submersion detection structures are electrically connected to the vehicle ECU. The multiple vehicle submersion detection structures acquire the submersion status and wading depth of various parts of the vehicle body and send them to the vehicle ECU, so that the vehicle ECU can open the doors and windows for easy escape after the vehicle falls into the water. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of one embodiment of a vehicle submersion detection structure according to the present invention;

[0021] Figure 2 This is a schematic diagram of another embodiment of the vehicle submersion detection structure of this utility model;

[0022] Figure 3 This is a front view schematic diagram of another embodiment of the vehicle water-fall detection structure of this utility model;

[0023] In the diagram: 1. Detection unit, 11. Detection chamber, 12. Pressure sensor, 13. Through hole, 2. Auxiliary unit, 21. Base, 22. Humidity sensor, 3. Mounting plate, 31. Anti-vibration pad, 41. First wing plate, 42. Second wing plate, 43. Third wing plate, 44. Fourth wing plate, 51. First connecting plate, 52. Second connecting plate, 53. Third connecting plate, 54. Fourth connecting plate. Detailed Implementation

[0024] The following are specific embodiments of the present invention, which further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0025] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement and steps of the modules and steps set forth in these embodiments do not limit the scope of the present invention.

[0026] At the same time, it should be understood that, for ease of description, the process shown in the attached diagram is not performed in isolation, but rather involves multiple steps that overlap.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model 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 utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0029] Techniques, methods, and systems known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and systems should be considered part of this application specification.

[0030] Example 1: As Figure 1 The image shown is merely one embodiment of this utility model. A vehicle submersion detection structure includes a detection unit 1 and an auxiliary unit 2 disposed on the side of the detection unit 1. The detection unit 1 includes a detection chamber 11 and a pressure sensor 12 disposed within the detection chamber 11. A through hole 13 is provided on the side wall of the detection chamber 11. The auxiliary unit 2 includes a base 21 and a humidity sensor 22 disposed on the base 21. A plurality of humidity sensors 22 are evenly arranged around the detection unit 1. The pressure sensor 12 and the humidity sensor 22 are electrically connected.

[0031] It should be noted that several humidity sensors 22 are electrically connected to the pressure sensor 12, so that when all humidity sensors 22 sense that the humidity is greater than the first preset threshold, the pressure sensor 12 is activated, and the pressure sensor 12 then senses the water pressure to obtain the water depth value of the pressure sensor 12.

[0032] Here, each humidity sensor 22 is connected to a comparator. The comparison value of the comparator is the first preset threshold. The signals output by multiple humidity sensors 22 pass through an AND gate. The output signal of the AND gate is sent to the pressure sensor 12, which is then activated to detect water pressure.

[0033] In this invention, a pressure sensor 12 is placed in a detection chamber 11. The detection chamber 11 protects the pressure sensor 12 and reduces the damage caused by stones and dust splashed from the road surface. In addition, multiple humidity sensors 22 are evenly arranged around the outside of the detection chamber 11. During normal water splashing, the humidity sensors 22 detect the splashing situation. When all the humidity sensors 22 detect that the humidity is greater than a first preset threshold, it is determined that the vehicle has entered a water-wading state. At this time, the pressure sensor 12 is activated and water enters through the through hole 13 on the side wall of the detection chamber 11. The pressure sensor 12 obtains the water pressure and can then determine the wading depth, thereby judging whether the vehicle has waded too deep or even fallen into the water. Moreover, if the pressure sensor 12 senses that the pressure is greater than a second preset threshold, it will issue an emergency alarm to remind the driver and passengers to escape.

[0034] Here, the pressure sensor 12 and humidity sensor 22 are electrically connected in the form of wireless connection and wired connection. If it is a wired connection, the wire leading out from the humidity sensor 22 passes through the base 21 to the detection chamber 21 and is electrically connected to the pressure sensor 12.

[0035] Because the pressure sensor 12 is located in the detection chamber 11, it is less affected by external factors. In addition, it will not be impacted when splashing water or when the vehicle is wading through a small amount of water. If the vehicle is wading through deep water, the water will only enter through the through hole 13 and will not directly hit the pressure sensor 12 due to the high speed of the vehicle. The pressure obtained by the pressure sensor 12 is the accurate water pressure, and the error of vehicle water wading detection is effectively reduced. Of course, the detection chamber 11 can be set in any position for use. Since the influence of water and dust splashed from the ground is avoided, the detection chamber 11 can be set at a lower position, such as near the wheel hub or even at the bottom of the frame, which is more accurate and the safety of vehicle water wading detection is higher (conventional water wading detection structures need to be impact-avoided and dustproof, and in order to avoid water splashing and accidental water wading, the detection sensor needs to be set at a certain height above the frame).

[0036] Furthermore, the pressure sensor 12 is electrically connected to an alarm device, which can be a warning light or a horn to alert the driver and passengers to escape. Alternatively, the alarm device can be integrated into the vehicle ECU. Once the pressure sensor 12 senses a pressure greater than a second preset threshold, the vehicle ECU will sound an alarm.

[0037] This utility model discloses a vehicle submersion detection structure. Its structure is simple and can obtain the vehicle submersion status by sensing the humidity sensor and the pressure sensor together. Multiple humidity sensors are evenly surrounded around the pressure sensor, so the submersion data detection is stable. The pressure sensor is set in the compartment for effective protection. It can be used at any position and height on the vehicle body and will not be affected by external collisions, dust and splashes. The vehicle submersion detection error is effectively reduced.

[0038] Example 2, as Figures 1 to 3 The illustration shown is only one embodiment of this utility model. Based on embodiment one, the vehicle submersion detection structure of this utility model further includes a mounting plate 3. The detection part 1 and the auxiliary part 2 are both mounted on the mounting plate 3, and mounting wing plates are provided on the side of the mounting plate 3. That is, the mounting plate 3 is mounted on the vehicle body, the detection part 1 and the auxiliary part 2 are both mounted on the mounting plate 3, and the mounting wing plates on the side of the mounting plate 3 further fix the mounting plate 3, making the entire detection structure more stable.

[0039] Here, the mounting plate 3 is provided with a shock-absorbing pad 31, which means that during vehicle operation, the detection part 1 and the auxiliary part 2 are less affected by vibration and have a longer service life.

[0040] In addition, a dustproof net is provided at the through hole 13 to further protect the pressure sensor 12 in the detection chamber 11.

[0041] Example 3, still as Figures 1 to 3 As shown, this is only one embodiment of the present utility model. Based on any of the above embodiments, in the vehicle water-fall detection structure of the present utility model, the mounting plate 3 is a rectangular plate that is generally vertically arranged, and the mounting wing plate includes a first wing plate 41 located above the mounting plate 3, a second wing plate 42 located below the mounting plate 3, a third wing plate 43 located on the side of the mounting plate 3, and a fourth wing plate 44 located on the side of the mounting plate 3 away from the third wing plate 43.

[0042] In other words, the mounting plate 3 is set vertically, and mounting wing plates are set on the top, bottom, left and right sides of the mounting plate 3, respectively referred to as the first wing plate 41, the second wing plate 42, the third wing plate 43 and the fourth wing plate 44.

[0043] Here, the first wing plate 41 is connected to the mounting plate 3 via the first connecting plate 51, the second wing plate 42 is connected to the mounting plate 3 via the second connecting plate 52, the third wing plate 43 is connected to the mounting plate 3 via the third connecting plate 53, and the fourth wing plate 44 is connected to the mounting plate 3 via the fourth connecting plate 54. The first connecting plate 51, the second connecting plate 52, the third connecting plate 53, and the third connecting plate 54 are all inclined.

[0044] It should be noted that the first wing plate 41, the second wing plate 42, the third wing plate 43 and the fourth wing plate 44 are located on the same plane, but the mounting plate 3 is not located on the same plane as the mounting wing plate. Here, the mounting plate 3 is arranged parallel to the mounting wing plate, and the detection part 1 and the auxiliary part 2 are both arranged on the side of the mounting plate 3 close to the mounting wing plate.

[0045] In this way, the first connecting plate 51, the second connecting plate 52, the third connecting plate 53, and the fourth connecting plate 54 act as another outer shell, buffering and protecting the protruding stones and trees on the road surface, and preventing the detection structure from being damaged by the outside world.

[0046] Moreover, since the first connecting plate 51, the second connecting plate 52, the third connecting plate 53 and the fourth connecting plate 54 are inclined, there is a gap between two adjacent connecting plates. When water falls in, the water will also reach the detection structure area through this gap.

[0047] Furthermore, the humidity sensor 22 includes a first sensor facing the gap between the first connecting plate 51 and the third connecting plate 53, a second sensor facing the gap between the first connecting plate 51 and the fourth connecting plate 54, a third sensor facing the gap between the second connecting plate 52 and the third connecting plate 53, and a fourth sensor facing the gap between the second connecting plate 52 and the fourth connecting plate 54. All the sensors are positioned facing these gaps, so that the humidity sensor 22 can detect the vehicle falling into water immediately.

[0048] Example 4, still as Figures 1 to 3 As shown, this is only one embodiment of the present invention. Based on any of the above embodiments, in the vehicle water-falling detection structure of the present invention, the number of the detection part 1 and the auxiliary part 2 is at least three. In fact, there are three or four vehicle water-falling detection structures, distributed in different positions of the vehicle, and each vehicle water-falling detection structure can obtain the wading depth at that location.

[0049] This involves installing multiple vehicle submersion detection structures around the vehicle body. These structures are electrically connected to the vehicle's ECU. The submersion detection structures acquire information about the submersion status and wading depth at various locations on the vehicle body and send this information to the vehicle's ECU, allowing the ECU to open the doors and windows for easy escape after the vehicle has fallen into the water.

[0050] In one embodiment of this utility model, the installation heights of multiple vehicle water-falling detection structures can also be different. This way, by detecting the water pressure value through different vehicle water-falling detection structures, it can be determined whether the vehicle enters the water upright or backward.

[0051] For example, four vehicle submersion detection structures are set up at the front left, rear left, front right, and rear right of the vehicle, respectively. They can identify the wading depth of the vehicle in each direction, thereby knowing the vehicle's wading posture, that is, its submersion posture.

[0052] When the vehicle enters deep water while driving smoothly, the water pressure values ​​detected by the four vehicle water-fall detection structures are all greater than the second preset threshold, and the error of the four water pressure values ​​is less than the preset error range. At this time, the vehicle ECU controller sends a braking command to the vehicle braking system, and at the same time, the doors, sunroof, and window regulators send unlock and window opening commands; at the same time, an alarm command is sent to the in-vehicle alarm module, and the vehicle buzzer and screen prompt the occupants to escape in an emergency; at the same time, the controller activates the distress system and sends an emergency rescue request to the cloud.

[0053] When a vehicle overturns and falls into the water, if the water pressure detected by the water-fall detection structure on only the left or right side of the vehicle exceeds the second preset threshold, the vehicle's ECU controller sends unlock and window opening commands to the sunroof, the non-water-falling side door, and the power windows. At the same time, it sends an alarm command to the in-vehicle alarm module, and the vehicle's buzzer and screen prompt the occupants to escape in an emergency. Simultaneously, the controller activates the distress system and sends an emergency rescue request to the cloud.

[0054] When a vehicle overturns 180° and falls into the water, the water pressure values ​​detected by all four vehicle water-fall detection structures are greater than the second preset threshold, and the error of the four water pressure values ​​is less than the preset error range. Furthermore, the water pressure value detected by the vehicle water-fall detection structure at the higher setting is greater than the water pressure value detected by the vehicle water-fall detection structure at the lower setting. At this time, the vehicle ECU controller sends unlock and window opening commands to the doors, sunroof, and window regulators; at the same time, it sends an alarm command to the in-vehicle alarm module, and the vehicle buzzer and screen prompt the occupants to escape in an emergency; simultaneously, the controller activates the distress system and sends an emergency rescue request to the cloud.

[0055] This utility model discloses a vehicle submersion detection structure. The structure is simple and can obtain the vehicle submersion status by sensing the humidity sensor and the pressure sensor together. Multiple humidity sensors are evenly surrounded around the pressure sensor, and the submersion data detection is stable. The submersion detection sensor is effectively protected by being set inside the compartment. It can be used at any vehicle height and position and will not be affected by external collisions, dust and splashes. The vehicle submersion detection error is effectively reduced.

[0056] This utility model is not limited to the specific embodiments described above, and various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made to the above embodiments based on the technical essence of this utility model should be included within the protection scope of this utility model.

Claims

1. A vehicle submersion detection structure, characterized in that: The device includes a detection unit (1) and an auxiliary unit (2) disposed on the side of the detection unit (1). The detection unit (1) includes a detection chamber (11) and a pressure sensor (12) disposed in the detection chamber (11). The side wall of the detection chamber (11) is provided with a through hole (13). The auxiliary unit (2) includes a base (21) and a humidity sensor (22) disposed on the base (21). Several humidity sensors (22) are evenly arranged around the detection unit (1). The pressure sensor (12) and the humidity sensor (22) are electrically connected. The pressure sensor is used to wake up when all humidity sensors detect that the humidity is greater than a first preset threshold, and is used to detect water pressure.

2. The vehicle submersion detection structure according to claim 1, characterized in that: It also includes a mounting plate (3), on which the detection part (1) and the auxiliary part (2) are both mounted. The mounting plate (3) has mounting wing plates on its side.

3. The vehicle submersion detection structure according to claim 2, characterized in that: The mounting plate (3) is a rectangular plate that is generally vertically arranged. The mounting wing plate includes a first wing plate (41) located above the mounting plate (3), a second wing plate (42) located below the mounting plate (3), a third wing plate (43) located on the side of the mounting plate (3), and a fourth wing plate (44) located on the side of the mounting plate (3) away from the third wing plate (43).

4. The vehicle submersion detection structure according to claim 3, characterized in that: The first wing plate (41), the second wing plate (42), the third wing plate (43) and the fourth wing plate (44) are located on the same plane. The mounting plate (3) is arranged parallel to the mounting wing plate, and the detection part (1) and the auxiliary part (2) are both arranged on the side of the mounting plate (3) close to the mounting wing plate.

5. The vehicle submersion detection structure according to claim 4, characterized in that: The first wing plate (41) is connected to the mounting plate (3) through the first connecting plate (51), the second wing plate (42) is connected to the mounting plate (3) through the second connecting plate (52), the third wing plate (43) is connected to the mounting plate (3) through the third connecting plate (53), and the fourth wing plate (44) is connected to the mounting plate (3) through the fourth connecting plate (54).

6. The vehicle submersion detection structure according to claim 5, characterized in that: The first connecting plate (51), the second connecting plate (52), the third connecting plate (53) and the fourth connecting plate (54) are all inclined.

7. The vehicle submersion detection structure according to claim 5, characterized in that: The humidity sensor (22) includes a first sensor facing the gap between the first connecting plate (51) and the third connecting plate (53), a second sensor facing the gap between the first connecting plate (51) and the fourth connecting plate (54), a third sensor facing the gap between the second connecting plate (52) and the third connecting plate (53), and a fourth sensor facing the gap between the second connecting plate (52) and the fourth connecting plate (54).

8. A vehicle submersion detection structure according to claim 2, characterized in that: The mounting plate (3) is provided with a shock-absorbing pad (31).

9. A vehicle submersion detection structure according to claim 1, characterized in that: The number of the detection unit (1) and the auxiliary unit (2) is at least three.

10. A vehicle submersion detection structure according to claim 1, characterized in that: A dustproof net is provided at the through hole (13).

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