A vehicle collision cushioning device, a vehicle, and a collision protection method

Abstract

This application provides a vehicle collision buffer device, a vehicle, and a collision protection method, which can reduce injuries to pedestrians outside the vehicle during a collision, relating to the field of vehicle technology. The vehicle collision buffer device provided by this application includes a mounting box, an impactor, and a buffer airbag. The mounting box forms a mounting cavity; the sidewall of the mounting cavity includes a first portion, which is part of the vehicle's outer wall. The impactor applies an impact force to the first portion to create a rupture, thereby allowing the mounting cavity to communicate with the vehicle's external environment through the rupture. The buffer airbag has a contracted state and an inflated state; in the contracted state, the buffer airbag is located within the mounting cavity; in the inflated state, the buffer airbag can extend out of the mounting cavity through the rupture. The vehicle collision buffer device provided by this application is used to generate a buffering effect during a collision.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a vehicle collision buffer device, a vehicle, and a collision protection method. Background Technology

[0002] Currently, vehicles have numerous protective measures for occupants, such as airbags integrated into the steering wheel. In the event of a collision, these airbags inflate and deploy backward from the steering wheel, cushioning the impact on the occupants. However, vehicles offer fewer protective measures for pedestrians outside the vehicle, making them more susceptible to serious injury in the event of a collision. Summary of the Invention

[0003] This application provides a vehicle collision buffer device, a vehicle, and a collision protection method, which can reduce the injury to pedestrians outside the vehicle during a collision.

[0004] In a first aspect, this application provides a vehicle collision buffer device, which includes a mounting box, an impactor, and a buffer airbag. The mounting box forms a mounting cavity; the sidewall of the mounting cavity includes a first portion, which is part of the vehicle's outer wall. The impactor applies an impact force to the first portion to create a rupture, thereby allowing the mounting cavity to communicate with the vehicle's external environment through the rupture. The buffer airbag has a contracted state and an inflated state; in the contracted state, the buffer airbag is located within the mounting cavity; in the inflated state, the buffer airbag can extend out of the mounting cavity through the rupture.

[0005] The vehicle collision buffer device provided in this application uses an impactor to impact the outer wall of the vehicle, creating a breach. This allows the airbag to extend through the breach into the mounting cavity outside the vehicle, thus protecting pedestrians and achieving a cushioning effect. Therefore, the vehicle collision buffer device provided in this application can reduce injuries to pedestrians outside the vehicle during a collision.

[0006] For example, the impactor includes an initiator capable of detonating an initiating agent, the impact force being the explosion pressure generated by the detonation of the initiating agent; and / or, the impactor includes a drive member and an impact hammer, the drive member being used to move the impact hammer toward the first part to impact the first part, thereby applying an impact force to the first part.

[0007] For example, an impactor is disposed within a mounting cavity, and the impactor causes the first portion to form a break by applying an impact force to a surface of the first portion near the mounting cavity.

[0008] For example, the first part is the lampshade of the vehicle headlight.

[0009] For example, the vehicle light is a headlight or a taillight; the sidewall of the mounting cavity also includes a lamp holder, the lamp holder has an opening, and the lamp cover is attached to the opening; a plurality of through holes are formed on the lamp holder, the through holes extend through the opposite sides of the lamp holder along the length direction of the vehicle, the plurality of through holes are arranged along the width direction of the vehicle, and the arrangement path of the plurality of through holes extends to both ends of the lamp holder in the width direction of the vehicle.

[0010] For example, the first part includes a first plate and a second plate, the first plate and the second plate are spliced ​​together, the first plate and the second plate are an integral structure, and the thickness of the first plate is less than the thickness of the second plate; the impactor is used to apply an impact force to the first plate to separate at least a portion of the first plate from the second plate, thereby forming a break in the second plate.

[0011] For example, along the thickness direction of the first plate portion, the surface of the first plate portion away from the mounting cavity is flush with the surface of the second plate portion away from the mounting cavity.

[0012] For example, the extension surface on the second plate portion protrudes along the thickness direction of the second plate portion to form a rib, and the rib extends along the outer edge of the first plate portion.

[0013] For example, the first portion is located at the end of the vehicle in the vehicle length direction; the thickness direction of the first plate portion is in the vehicle length direction, so that when in the inflated state, the buffer airbag extends out of the mounting cavity along the vehicle length direction.

[0014] For example, the first plate extends along the width of the vehicle so that, when inflated, the airbag extends along the width of the vehicle.

[0015] Secondly, this application provides a vehicle, which includes a vehicle body and a vehicle collision buffer device provided in the first aspect of this application, wherein the vehicle collision buffer device is disposed on the vehicle body.

[0016] The vehicle provided in this application, by including the vehicle collision buffer device provided in the first aspect of this application, can achieve the same effect, namely, reducing the injury to pedestrians outside the vehicle during a collision.

[0017] Thirdly, this application provides a collision protection method, which is applied to the vehicle provided in the second aspect of this application. The method includes: acquiring information about the vehicle's surrounding environment and / or vehicle motion information; when the information about the vehicle's surrounding environment and / or vehicle motion information indicates that a collision has occurred or is about to occur, controlling an impactor to apply an impact force to a first part, causing a rupture in the first part; and controlling the buffer airbag to switch from a contracted state to an inflated state, so that the buffer airbag extends out of the mounting cavity through the rupture.

[0018] The collision protection method provided in this application determines whether a collision has occurred or is about to occur based on information about the vehicle's surrounding environment and / or vehicle motion. When a collision occurs or is about to occur, an impactor strikes the vehicle's outer wall, creating a breach. An airbag then extends through this breach to protect pedestrians outside the vehicle, thus providing cushioning. Therefore, the collision protection method provided in this application can reduce injuries to pedestrians outside the vehicle during a collision. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the vehicle structure in some embodiments of this application;

[0020] Figure 2 This is a schematic diagram of the structure of the first part in some embodiments of this application;

[0021] Figure 3 This is a schematic diagram of the structure of the first part in some embodiments of this application;

[0022] Figure 4 This is a first-view structural diagram of the lamp holder in some embodiments of this application;

[0023] Figure 5 This is a second-view structural diagram of the lamp holder in some embodiments of this application;

[0024] Figure 6 This is a third-view structural diagram of the lamp holder in some embodiments of this application;

[0025] Figure 7 This is a flowchart illustrating the collision protection method in some embodiments of this application.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1-Vehicle body; 2-Vehicle collision buffer device; 21-Mounting box; 211-First part; 2111-First plate; 2112-Second plate; 212-Lamp holder; 2121-Through hole; 2122-Reinforcing rib; 21221-Notch; 2123-Weight reduction through hole; 22-Buffer airbag; 23-Light-emitting element; 3-Mounting cavity; a-Vehicle length direction; b-Vehicle width direction; A-Outline of the outer edge of the first plate. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application are further described in detail below with reference to the accompanying drawings and embodiments. The described embodiments should not be regarded as limitations on this application. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] In the following description, references to "some embodiments" refer to a subset of all possible embodiments; however, it is understood that "some embodiments" may be the same subset or different subsets of all possible embodiments. Unless otherwise specified, the embodiments and technical features described in this application can be combined with each other.

[0030] In the embodiments of this application, unless otherwise specified, the technical steps may be interchanged in a particular order or sequence so that the embodiments of this application described herein can be implemented in a sequence other than that illustrated or described herein.

[0031] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as representing a specific ordering of objects, nor should they be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0032] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium.

[0033] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0034] In the embodiments of this application, the words "exemplarily" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design described as "exemplarily" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design solutions. Specifically, the use of the words "exemplarily" or "for example" is intended to present the relevant concepts in a specific manner.

[0035] Unless otherwise defined, all technical and scientific terms used in the embodiments of this application have the same meaning as commonly understood by one of ordinary skill in the art to which the embodiments of this application pertain. The terminology used in the embodiments of this application is for descriptive purposes only and is not intended to limit the scope of the embodiments of this application.

[0036] This application provides a vehicle, and the type of vehicle is not limited. A vehicle can refer to a motor vehicle, a non-motor vehicle, or a rail transit vehicle, etc. For example, a vehicle can refer to a sedan, an off-road vehicle, and a sport utility vehicle (SUV), etc.

[0037] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the vehicle structure in some embodiments of this application. The vehicle provided in this application includes a body 1 and a vehicle collision buffer device 2. The vehicle collision buffer device 2 is disposed on the body 1 and is used to provide a buffering effect during the collision between the vehicle and people or objects in the surrounding environment.

[0038] Please refer to Figure 1 , Figure 2 and Figure 3 , Figure 2 This is a schematic diagram of the structure of the first part in some embodiments of this application. Figure 3 This is a schematic diagram of the structure of the first part in some embodiments of this application. The vehicle collision buffer device 2 provided in this application includes a mounting box 21, an impactor, and a buffer airbag 22. The mounting box 21 forms a mounting cavity 3; the sidewall of the mounting cavity 3 includes a first part 211, which is part of the vehicle's outer wall. The impactor applies an impact force to the first part 211 to create a rupture, thereby allowing the mounting cavity 3 to communicate with the vehicle's external environment through the rupture. The buffer airbag 22 has a contracted state and an inflated state; in the contracted state, the buffer airbag 22 is located within the mounting cavity 3; in the inflated state, the buffer airbag 22 can extend out of the mounting cavity 3 through the rupture. With this structure, the impactor can impact the vehicle's outer wall, creating a rupture, allowing the buffer airbag 22 to extend out of the mounting cavity 3 to the outside of the vehicle, thus protecting pedestrians outside the vehicle and achieving a buffering effect. Therefore, the vehicle collision buffer device 2 provided in this application can reduce injuries to pedestrians outside the vehicle during a collision.

[0039] Please refer to Figure 1 , Figure 2 and Figure 3It is understood that the vehicle collision buffer device 2 provided in this application embodiment is not limited to buffering during a vehicle collision with a pedestrian. Any vehicle collision accident can be buffered using the vehicle collision buffer device 2 provided in this application embodiment. For example, the collision accident can be a collision between moving vehicles, such as a rear-end collision or a head-on collision, or a collision between a vehicle and other stationary objects, such as a vehicle colliding with a building, or a collision between a falling object and a vehicle. During the buffering process, the inflated buffer airbag 22 is supported between the vehicle and the object or person colliding with the vehicle, thus playing a buffering role.

[0040] Please refer to Figure 1 , Figure 2 and Figure 3 It is understood that, in this embodiment of the application, when in the retracted state, the airbag 22 is disposed within the mounting cavity 3, which provides an installation position for the airbag 22. Moreover, the first part 211 can shield the airbag 22, preventing it from being exposed outside the vehicle and improving the vehicle's aesthetics.

[0041] Please refer to Figure 1 , Figure 2 and Figure 3 In some embodiments of this application, the airbag 22 has a vent hole for venting. When the airbag 22 comes into contact with an object or person that collides with the vehicle, the air inside the airbag 22 can be appropriately discharged through the vent hole, so that the inflated airbag 22 can be appropriately contracted, thereby improving the flexibility of the airbag 22 and improving the cushioning effect.

[0042] Please refer to Figure 1 , Figure 2 and Figure 3 It should be explained that in this embodiment of the application, the impactor and the buffer airbag 22 are two different components. The impact force generated by the impactor on the first part 211 during the impact of the impactor is greater than the pressure generated by the buffer airbag 22 on the first part 211 during the expansion process.

[0043] Please refer to Figure 1 , Figure 2 and Figure 3Understandably, without an impactor, the airbag 22's expansion pressure alone would force open the mounting box 21, creating an opening in its side wall. The airbag 22 would then extend out of the mounting cavity 3 through this opening. Because the airbag 22's expansion pressure is relatively low, the mounting strength of the portion of the box that engages with the opening would also need to be low to allow it to be successfully opened by the inflated airbag 22 and separated from the rest of the box. Therefore, such a structure results in low mounting strength for the portion engaging with the opening, making the structure unreliable. Furthermore, to achieve this structure, a large gap might need to be formed between the portion engaging with the opening and the rest of the box, affecting the vehicle's appearance. Additionally, this structure carries the risk that the airbag 22 may fail to open the mounting box 21 successfully, posing a significant safety hazard.

[0044] Please refer to Figure 1 , Figure 2 and Figure 3 In this embodiment, the impactor creates a break, eliminating the need for poor installation strength in the first part 211. The first part 211 can be tightly bonded to other parts of the mounting box 21 and the vehicle's outer wall. This improves reliability and the smoothness of the vehicle's outer wall, enhancing its aesthetic appeal. Furthermore, the strong impact force generated by the impactor reliably creates a break in the first part 211, further improving the reliability of the vehicle collision buffer device 2.

[0045] Please refer to Figure 1 , Figure 2 and Figure 3 In this application, the impactor can be implemented in various forms. In some embodiments of this application, the impactor includes a detonator capable of igniting an initiating agent, and the impact force is the explosion pressure generated by the explosion of the initiating agent. For example, the detonator can generate a flame, which ignites the initiating agent. After the initiating agent is ignited, it explodes, and the explosion generates high pressure in the mounting cavity 3, thereby applying an impact force to the first part 211.

[0046] Please refer to Figure 1 , Figure 2 and Figure 3 In some embodiments of this application, the impactor may also include a drive member and an impact hammer. The drive member is used to drive the impact hammer to move toward the first portion 211 to impact the first portion 211, thereby applying an impact force to the first portion 211. Exemplarily, the drive member may be a motor or a power cylinder, etc., and the impact hammer is a part made of a rigid material.

[0047] Please refer to Figure 1 , Figure 2 and Figure 3Of course, in some embodiments of this application, the impactor may also include an initiator, a drive element, and an impact hammer. The impact force generated by the impact hammer and the explosion pressure of the initiator detonating the detonator act together on the first part 211.

[0048] Please refer to Figure 1 , Figure 2 and Figure 3 In some embodiments of this application, the impactor is disposed within the mounting cavity 3. The impactor applies an impact force to the surface of the first portion 211 near the mounting cavity 3, causing the first portion 211 to form a break. With this structure, the impactor is disposed within the mounting cavity 3, which provides a mounting position for the impactor. Furthermore, the first portion 211 can shield the impactor, preventing it from being exposed outside the vehicle and improving the vehicle's aesthetics.

[0049] Please refer to Figure 1 , Figure 2 and Figure 3 In this embodiment, the first part 211, which is part of the vehicle's outer wall, can have various implementations. For example, the first part 211 can be a vehicle side panel, a vehicle front bumper, a vehicle rear bumper, a vehicle rear skirt, a vehicle fender, a door, the top wall of the vehicle body 1, and the lampshade of a vehicle headlight, etc. The vehicle headlight can be a headlight or a taillight, etc.

[0050] Please refer to Figure 1 , Figure 2 and Figure 3 In some embodiments of this application, the first part 211 is the lamp cover of the vehicle headlight. The lamp cover is relatively inexpensive and easy to replace after damage. However, the lamp cover has relatively low strength and is easily damaged under the impact of an impactor. In addition, the headlight position is also a position where the vehicle is prone to collision, and the airbag 22 deploys at the headlight position, which can play a good cushioning role.

[0051] Please refer to Figure 4 , Figure 5 and Figure 6 , Figure 4 This is a first-view structural diagram of the lamp holder in some embodiments of this application. Figure 5 This is a second-view structural diagram of the lamp holder in some embodiments of this application. Figure 6 This is a third-view structural diagram of the lamp holder in some embodiments of this application. In some embodiments of this application, the sidewall of the mounting cavity 3 also includes a lamp holder 212, which has an opening. The lamp cover is attached to the opening. The impactor can be disposed in the cavity of the lamp holder 212, and the buffer airbag 22 in a contracted state can also be disposed in the cavity. That is, the light emitting element 23 of the vehicle lamp can be disposed in the same cavity as the impactor, and the light emitting element 23 of the vehicle lamp can be disposed in the same cavity as the buffer airbag 22.

[0052] Please refer to Figure 1 Figure 2 and Figure 3 In some embodiments of this application, the vehicle buffer device further includes a shielding member, which can be a thin plastic sheet. The shielding member is disposed within the cavity, located on the side of the buffer airbag 22 near the lamp cover, and is used to shield the buffer airbag 22. This structural form helps to improve the aesthetics of the vehicle headlight. In some embodiments of this application, the shielding member can also shield the impactor to improve the aesthetics of the vehicle headlight. In some embodiments of this application, decorative parts or decorative patterns can also be provided on the surface of the shielding member near the lamp cover to improve the aesthetics of the vehicle headlight.

[0053] Please refer to Figure 4 , Figure 5 and Figure 6 In some embodiments of this application, the vehicle light is a headlight or a taillight; the sidewall of the mounting cavity 3 also includes a lamp holder 212, which has an opening, and the lamp cover is attached to the opening; the lamp holder 212 has a plurality of through holes 2121, which extend through opposite sides of the lamp holder 212 along the vehicle length direction a, and are arranged along the vehicle width direction b, with the arrangement path of the plurality of through holes 2121 extending to both ends of the lamp holder 212 in the vehicle width direction b. This structural form makes the location of the mounting hole on the lamp holder 212 relatively weak, and during a collision, the location of the through hole 2121 on the lamp holder 212 is prone to breakage, reducing the rigidity of the vehicle light and further reducing the damage caused by a collision. Moreover, the arrangement path of the multiple through holes 2121 extends to both ends of the lamp holder 212 in the vehicle width direction b, and the range of the lamp holder 212 fracture is large, which is conducive to the lamp holder 212 splitting into two parts after being impacted, with one part falling off without intruding into the passenger compartment, thus reducing the harm to the occupants.

[0054] Please refer to Figure 4 , Figure 5 and Figure 6 In some embodiments of this application, a reinforcing rib 2122 is formed on the lamp holder 212 in addition to having multiple through holes 2121. This structural form helps to appropriately improve the reliability of the lamp holder 212 and the durability of the lamp cover while reducing the rigidity of the lamp holder 212. In some embodiments of this application, a notch 21221 is formed on the part of the reinforcing rib 2122 near the through hole 2121. This structural form makes the part of the reinforcing rib 2122 near the through hole 2121 relatively weak, which helps to make the part of the reinforcing rib 2122 near the through hole 2121 more likely to break during a collision, thereby reducing the damage caused by the collision.

[0055] Please refer to Figure 4 , Figure 5 and Figure 6 In some embodiments of this application, the reinforcing rib 2122 is located on the side of the lamp holder 212 away from the lamp cover. With this structural form, the reinforcing rib 2122 is not easily seen through the lamp cover, which helps to improve the aesthetics of the vehicle lamp.

[0056] Please refer to Figure 4 , Figure 5 and Figure 6 In some embodiments of this application, a weight-reducing through hole 2123 is also formed on the lamp holder 212, and the weight-reducing through hole 2123 penetrates through the opposite sides of the vehicle along the vehicle length direction a.

[0057] Please refer to Figure 1 , Figure 2 and Figure 3 In some embodiments of this application, the first part 211 includes a first plate portion 2111 and a second plate portion 2112, which are spliced ​​together and form an integral structure. The thickness of the first plate portion 2111 is less than the thickness of the second plate portion 2112. An impactor is used to apply an impact force to the first plate portion 2111, causing at least a portion of the first plate portion 2111 to separate from the second plate portion 2112, thereby forming a break in the second plate portion 2112. With this structural configuration, the first plate portion 2111 is thinner and is a weak point in the first part 211, making it prone to detachment under stress. This makes it easier for the first part 211 to break along the preset contour, which is the outer contour of the first plate 2111 and also the circumferential contour of the break. This makes the circumferential contour of the break controllable, helps to avoid the first plate 2111 from breaking and generating a large number of fragments that could injure pedestrians, and also helps to make the contour of the break more regular, which helps to avoid the airbag 22 from being punctured.

[0058] Please refer to Figure 1 , Figure 2 and Figure 3 It is understandable that if the airbag 22 is easily punctured, the punctured position of the airbag 22 can be used as a vent, allowing the gas inside the airbag 22 to be properly discharged through the punctured position, thereby improving the flexibility of the airbag 22.

[0059] Please refer to Figure 1 , Figure 2 and Figure 3It is understood that, in the embodiments of this application, the rupture opening can also constrain the shape of the buffer airbag 22, causing the buffer airbag 22 to extend along a preset direction, and the shape of the buffer airbag 22 after inflation is controllable, which is beneficial to improving the utilization rate of the buffer airbag 22, thereby improving the buffering effect. In some embodiments of this application, the first part 211 is located at the end of the vehicle in the vehicle length direction a; the thickness direction of the first plate part 2111 is the vehicle length direction a, so that when in the inflated state, the buffer airbag 22 extends out of the mounting cavity 3 along the vehicle length direction a. It is understood that the probability of collision of the vehicle in the vehicle length direction a is relatively high. The buffer airbag 22 is set at the end in the vehicle length direction a, such as the front or rear end of the vehicle, and extends out of the mounting cavity 3 along the vehicle length direction a, which is beneficial to improving the support force of the buffer airbag 22 for the impacted object or person, thereby improving the buffering effect of the buffer airbag 22.

[0060] Please refer to Figure 1 , Figure 2 and Figure 3 Of course, in some embodiments of this application, the buffer airbag 22 may also extend out of the mounting cavity 3 along the vehicle width direction b, so that the buffer airbag 22 extends a longer distance in the vehicle width direction b, thereby increasing the contact area between the buffer airbag 22 and the person or object being hit.

[0061] Please refer to Figure 1 , Figure 2 and Figure 3 In some embodiments of this application, the first plate portion 2111 extends along the vehicle width direction b, so that when inflated, the airbag 22 extends along the vehicle width direction b. This structural configuration allows the airbag 22 to extend a longer distance along the vehicle width direction b, which improves the utilization rate of the airbag 22 and increases the contact area between the airbag 22 and the impacted person or object, thereby enhancing the cushioning effect. Please refer to... Figure 2 and Figure 3 In the figure, label A represents the outline of the outer edge of the first plate portion 2111. The outline of the outer edge of the first plate portion 2111 can be rectangular, elliptical, or rhomboid, etc.

[0062] Please refer to Figure 1 , Figure 2 and Figure 3 In some embodiments of this application, the airbag 22 extends along the vehicle width direction b during inflation. This structural configuration, with the airbag 22 extending a longer distance along the vehicle width direction b, improves the utilization rate of the airbag 22 and increases the contact area between the airbag 22 and the impacted person or object, thereby enhancing the cushioning effect. In some embodiments of this application, the airbag 22 is rhomboid in shape.

[0063] Please refer to Figure 1 , Figure 2 and Figure 3 Of course, in some embodiments of this application, the shape of the inflated airbag 22 may not be constrained by the rupture opening, and the outline of the rupture opening may be larger.

[0064] Please refer to Figure 1 , Figure 2 and Figure 3 In some embodiments of this application, the extended surface of the second plate portion 2112 protrudes along the thickness direction of the second plate portion 2112 to form ribs, which extend along the outer edge of the first plate portion 2111. This structural form strengthens the second plate portion 2112, making it less susceptible to damage during impact by an impactor on the first portion 211, and facilitating a higher degree of matching between the final break and the outer contour of the first plate portion 2111. In some embodiments of this application, the ribs are formed on the extended surface of the second plate portion 2112 near the receiving cavity. This structural form helps to make the outer surface of the first portion 211 relatively flat.

[0065] Please refer to Figure 1 , Figure 2 and Figure 3 In some embodiments of this application, along the thickness direction of the first plate portion 2111, the surface of the first plate portion 2111 away from the mounting cavity 3 is flush with the surface of the second plate portion 2112 away from the mounting cavity 3. This structural form is beneficial to improving the flatness of the appearance of the first portion 211, thereby improving the aesthetics of the vehicle's outer wall appearance.

[0066] This application also provides a collision protection method, which is applied to the vehicle provided in this application embodiment. Please refer to... Figure 7 The method includes:

[0067] S101, Obtain information about the vehicle's surrounding environment and / or vehicle motion information;

[0068] S102, determine whether a collision has occurred or is about to occur by using information about the vehicle's surrounding environment and / or vehicle motion information;

[0069] If not, return to step S101;

[0070] S103, if so, control the impactor to apply impact force to the first part, so that the first part will have a break.

[0071] S104 controls the buffer airbag to switch from a contracted state to an inflated state, allowing the buffer airbag to extend out of the installation cavity through the rupture opening.

[0072] The collision protection method provided in this application determines whether a collision has occurred or is about to occur based on information about the vehicle's surrounding environment and / or vehicle motion. When a collision occurs or is about to occur, an impactor strikes the vehicle's outer wall, creating a breach. An airbag 22 extends out of the vehicle through this breach to cushion pedestrians outside the vehicle. Therefore, the collision protection method provided in this application can reduce injuries to pedestrians outside the vehicle during a collision.

[0073] When a vehicle collision occurs, the airbag sensor 22 receives a collision signal and controls the electronic controller to send a start signal to the gas generator. After receiving the signal, the gas generator will ignite and produce a large amount of gas, causing the airbag to inflate rapidly in a short time, effectively protecting pedestrian safety.

[0074] The above are merely embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

Claims

1. A vehicle collision buffer device, characterized in that, include: The mounting box has a mounting cavity; the sidewall of the mounting cavity includes a first portion, which is part of the outer wall of the vehicle. An impactor is used to apply an impact force to the first part to create a rupture in the first part, thereby allowing the mounting cavity to communicate with the external environment of the vehicle through the rupture. The cushioning airbag has a contracted state and an inflated state; in the contracted state, the cushioning airbag is located within the mounting cavity; in the inflated state, the cushioning airbag can extend out of the mounting cavity through the rupture opening. The first part is the lamp cover of the vehicle lamp; the vehicle lamp is a headlight or a taillight; the side wall of the mounting cavity also includes a lamp holder, the lamp holder has an opening, and the lamp cover is attached to the opening; the lamp holder has a plurality of through holes formed thereon, the through holes penetrate through the opposite sides of the lamp holder along the length direction of the vehicle, the plurality of through holes are arranged along the width direction of the vehicle, and the arrangement path of the plurality of through holes extends to both ends of the lamp holder in the width direction of the vehicle.

2. The vehicle collision buffer device according to claim 1, characterized in that, The impactor includes an initiator capable of detonating an initiating agent, the impact force being the explosion pressure generated by the detonation of the initiating agent; and / or, the impactor includes a drive member and an impact hammer, the drive member being used to move the impact hammer toward the first portion to impact the first portion, thereby applying the impact force to the first portion.

3. The vehicle collision buffer device according to claim 1, characterized in that, The impactor is disposed within the mounting cavity, and the impactor applies the impact force to the surface of the first portion near the mounting cavity to cause the first portion to form the break.

4. The vehicle collision buffer device according to any one of claims 1 to 3, characterized in that, The first part includes a first plate and a second plate, which are spliced ​​together and are integral in structure. The thickness of the first plate is less than that of the second plate. The impactor is used to apply the impact force to the first plate to separate at least a portion of the first plate from the second plate, thereby forming the break in the second plate.

5. The vehicle collision buffer device according to claim 4, characterized in that, The extended surface on the second plate portion has raised ribs along the thickness direction of the second plate portion, and the raised ribs extend along the outer edge of the first plate portion.

6. The vehicle collision buffer device according to claim 4, characterized in that, Along the thickness direction of the first plate portion, the surface of the first plate portion away from the mounting cavity is flush with the surface of the second plate portion away from the mounting cavity.

7. A vehicle, characterized in that, include: Body; The vehicle collision buffer device according to any one of claims 1 to 6, wherein the vehicle collision buffer device is disposed on the vehicle body.

8. A collision protection method, characterized in that, Applied to the vehicle of claim 7, the method includes: Obtain information about the vehicle's surrounding environment and / or vehicle movement; When the vehicle's surrounding environment information and / or the vehicle's motion information indicate that a collision has occurred or is about to occur, the impactor is controlled to apply an impact force to the first part, causing the first part to develop the damage opening. The buffer airbag is controlled to switch from the contracted state to the inflated state, so that the buffer airbag extends out of the mounting cavity through the rupture opening.

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