Pedestrian protection device and car thereof

Abstract

The application relates to a pedestrian protection device and a car thereof, which comprises an engine hood assembly, a cabin covering and a headlamp, the engine hood assembly comprises an engine hood outer plate and an engine hood inner plate, a first energy-absorbing structure is arranged between the engine hood outer plate and the engine hood inner plate; the cabin covering is arranged below the engine hood assembly, a safety gap is formed between the cabin covering and the engine hood assembly, a second energy-absorbing structure is arranged in the safety gap and below the first energy-absorbing structure; the headlamp is arranged below the cabin covering and connected with the cabin covering. The first energy-absorbing structure is arranged in the limited space between the engine hood outer plate and the engine hood inner plate, the second energy-absorbing structure is arranged in the limited space between the cabin covering and the engine hood assembly, when the head of a pedestrian collides with the engine hood outer plate, the impact force is transmitted along the first energy-absorbing structure and the second energy-absorbing structure to the front of the headlamp, and the collision energy is absorbed gradually.

Description

Technical Field

[0001] This application relates to the automotive field, and more particularly to a pedestrian protection device and the vehicle thereof. Background Technology

[0002] With the implementation of GB24550-2024 "Collision Protection of Motor Vehicles to Pedestrians" on January 1, 2025, domestic automobile design will face more stringent challenges in pedestrian protection performance. The upper front outer structure of a car includes the hood, engine compartment cover, headlights, and other accessories. Because this area is located at the edge of the vehicle, the space is limited. In addition, the headlights are generally fixed to the rigid frame of the vehicle body. When a pedestrian's head collides with this area of ​​the vehicle, the collision energy cannot be fully absorbed by the deformation of the hood, resulting in the impact force acting on the pedestrian's head and causing a higher value of head injury. Summary of the Invention

[0003] This application provides a pedestrian protection device and a vehicle thereof, which can solve the problem in the related art that when a pedestrian's head collides with the outer front upper part of the vehicle's structure, the impact force reacts to the pedestrian's head, resulting in a high value of head injury.

[0004] In a first aspect, embodiments of this application provide a pedestrian protection device, comprising: an engine hood assembly, a cabin cover, and a headlight. The engine hood assembly includes an outer engine hood panel and an inner engine hood panel, with a first energy-absorbing structure disposed between the outer and inner engine hood panels. The cabin cover is disposed below the engine hood assembly, and a safety gap is formed between the cabin cover and the engine hood assembly. A second energy-absorbing structure is disposed within the safety gap, and the second energy-absorbing structure is disposed below the first energy-absorbing structure. The headlight is disposed below the cabin cover and connected to the cabin cover.

[0005] In conjunction with the first aspect, in one embodiment, an energy-absorbing and force-transmitting path is provided on the first energy-absorbing structure along the width direction of the vehicle body.

[0006] In conjunction with the first aspect, in one embodiment, the first energy-absorbing structure includes: an inner panel bracket and an adhesive component, wherein the inner panel bracket is fixed to the top of the inner panel of the engine hood and has an energy-absorbing and force-transmitting path along the width direction of the vehicle body; and the adhesive component is bonded between the inner panel bracket and the outer panel of the engine hood.

[0007] In conjunction with the first aspect, in one embodiment, the inner panel bracket includes: a bracket body, a force-transmitting guide rib, a force-transmitting guide hole, and a reinforcing rib group. The bracket body is disposed on the inner panel of the engine hood along the width direction of the vehicle body. The force-transmitting guide rib is disposed on the bracket body, and the length extension direction of the force-transmitting guide rib is the same as that of the vehicle body. The force-transmitting guide hole is disposed on the bracket body and is adjacent to the force-transmitting guide rib. Reinforcing rib groups are disposed on both sides of the bracket body, and the length extension line of the reinforcing rib group intersects with the length extension line of the force-transmitting guide rib.

[0008] In conjunction with the first aspect, in one embodiment, the reinforcing rib group includes: a front reinforcing rib and a rear reinforcing rib, wherein the front reinforcing rib is fixed to the support body and has an angle with the horizontal plane, the angle being an acute angle; the rear reinforcing rib is fixed to the support body and is vertically arranged on one side of the front reinforcing rib; wherein both the front and rear reinforcing ribs are provided with deformation guiding folds in the middle so that both the front and rear reinforcing ribs form a stepped structure, and an inner plate welding bonding surface is provided between the front and rear reinforcing ribs.

[0009] In conjunction with the first aspect, in one embodiment, the inner panel bracket further includes: a fitting portion, a recessed platform, and a flanged surface; the fitting portion is disposed on the bracket body, and the adhesive is bonded to the fitting portion; the recessed platform is disposed on the bracket body and is fixed to the inner panel of the engine hood; one end of the bracket body is bent to form a flanged surface, and there is a gap between the flanged surface and the inner panel of the engine hood.

[0010] In conjunction with the first aspect, in one embodiment, the engine hood inner panel includes: a sealing strip mounting surface, an inner panel vertical surface, and an inner panel bottom surface, wherein a safety gap is formed between the sealing strip mounting surface and the engine compartment cover; the inner panel vertical surface is connected to the sealing strip mounting surface; and the inner panel bottom surface is connected to the inner panel vertical surface.

[0011] In conjunction with the first aspect, in one embodiment, the bottom surface of the inner plate is lower than the mounting surface of the sealing strip, and the first energy-absorbing structure is disposed above the bottom surface of the inner plate.

[0012] In conjunction with the first aspect, in one embodiment, an opening is provided on the vertical surface of the inner panel, and a flap extending towards the inner panel support is provided at one end of the vertical surface of the inner panel, and the flap is fixed to the inner panel support.

[0013] Secondly, embodiments of this application provide a vehicle that includes: the pedestrian protection device described above.

[0014] The beneficial effects of the technical solutions provided in this application include:

[0015] This application provides a pedestrian protection device and its vehicle. By setting a first energy-absorbing structure in the limited space between the outer and inner panels of the hood and a second energy-absorbing structure in the limited space between the engine compartment cover and the hood assembly, when a pedestrian's head impacts the outer panel of the hood assembly, the impact force is transmitted downwards along the first energy-absorbing structure, the second energy-absorbing structure, and the engine compartment cover to the headlights, absorbing the collision energy step by step, thus greatly reducing the injury value to the pedestrian's head. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic cross-sectional view of the overall structure provided in an embodiment of this application;

[0018] Figure 2 This is a schematic diagram of the inner panel of the engine hood provided in an embodiment of this application;

[0019] Figure 3 This is a schematic diagram of the engine hood inner panel bracket provided in an embodiment of this application;

[0020] Figure 4 This is a schematic diagram of the engine hood inner panel bracket provided in an embodiment of this application;

[0021] Figure 5 This is a schematic diagram of the inner panel of the engine hood provided in an embodiment of this application;

[0022] Figure 6 This is a schematic diagram illustrating the effect of the collision acceleration curve provided in the embodiments of this application.

[0023] In the diagram: 1. Engine hood assembly; 11. Engine hood outer panel; 12. Engine hood inner panel; 121. Sealing strip mounting surface; 122. Inner panel bottom surface; 123. Inner panel elevation; 124. Opening; 125. Flip plate; 13. Inner panel bracket; 130. Bracket body; 131. Fitting part; 132. Force transmission guide rib; 133. Force transmission guide hole; 134. Flanged surface; 135. Inner panel welding surface; 136. Front reinforcing rib; 137. Rear reinforcing rib; 138. Deformation guide fold; 139. Recessed platform; 14. Expansion film;

[0024] 2. Cabin coverings;

[0025] 3. Headlight;

[0026] 4. Sealing strip structure. Detailed Implementation

[0027] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0028] This application provides a pedestrian protection device and a vehicle thereof, which can solve the problem in the related art that when a pedestrian's head collides with the outer front upper structure area of ​​a vehicle, the impact force reacts to the pedestrian's head, resulting in a high value of head injury.

[0029] With the implementation of GB24550-2024 "Collision Protection of Motor Vehicles against Pedestrians" on January 1, 2025, domestic automotive design will face more stringent challenges in pedestrian protection performance. The upper front outer structure of a vehicle includes the hood, engine compartment cover, headlights, and other accessories. Because this area is located at the edge of the vehicle and has limited space, and because headlights are generally fixed to the rigid frame of the vehicle body, when a pedestrian's head collides with this area, the impact energy cannot be fully absorbed by the deformation of the hood, resulting in a high head injury value due to the impact force reacting on the pedestrian's head. This addresses the issue of high head injury values ​​caused by the impact force reacting on the pedestrian's head when colliding with the upper front outer structure of a vehicle. See also... Figures 1 to 6 In a first aspect, embodiments of this application provide a pedestrian protection device, comprising: an engine hood assembly 1, a cabin cover 2, and a headlight 3. The engine hood assembly 1 includes an outer engine hood panel 11 and an inner engine hood panel 12, with a first energy-absorbing structure disposed between the outer engine hood panel 11 and the inner engine hood panel 12. The cabin cover 2 is disposed below the engine hood assembly 1, and a safety gap is formed between the cabin cover 2 and the engine hood assembly 1. A second energy-absorbing structure is disposed within the safety gap, and the second energy-absorbing structure is disposed below the first energy-absorbing structure. The headlight 3 is disposed below the cabin cover 2 and is connected to the cabin cover 2 by a snap-fit ​​connection.

[0030] In this application, by setting a first energy-absorbing structure in the limited space between the outer panel 11 and the inner panel 12 of the engine hood, and setting a second energy-absorbing structure in the limited space between the engine compartment cover 2 and the engine hood assembly 1, when a pedestrian's head hits the outer panel 11 of the engine hood assembly 1, the impact force is transmitted downwards along the first energy-absorbing structure, the second energy-absorbing structure and the engine compartment cover 2 to the headlight 3, absorbing the collision energy step by step, which greatly reduces the injury value of the pedestrian's head.

[0031] In this embodiment, two energy-absorbing and force-transmitting paths are designed. One path consists of a first energy-absorbing structure, a second energy-absorbing structure, a hood cover 2, and a headlight 3, which transmits force downwards. The other path is an energy-absorbing and force-transmitting path along the width of the vehicle body, located on the first energy-absorbing structure, which transmits force to both sides of the first energy-absorbing structure along the width of the vehicle body. Through these two energy-absorbing and force-transmitting paths, the engine hood assembly 1 can fully absorb collision energy through deformation.

[0032] Based on the above embodiments, in this embodiment, the first energy-absorbing structure includes: an inner panel support 13 and an adhesive component. The inner panel support 13 is fixed to the top of the inner panel 12 of the engine hood and has an energy-absorbing and force-transmitting path along the width direction of the vehicle body. The adhesive component is bonded between the inner panel support 13 and the outer panel 11 of the engine hood.

[0033] Specifically, the inner panel bracket 13 is disposed between the outer panel 11 and the inner panel 12 of the hood, and the inner panel bracket 13 is disposed along the width direction of the vehicle body. Therefore, the inner panel bracket 13 can absorb the downward collision energy and transfer the collision energy to the inner panel 12 of the hood, and can also transfer the collision energy along its own length direction after absorbing the collision energy.

[0034] The inner plate support 13 includes: a support body 130, a force transmission guide rib 132, a force transmission guide hole 133, and a reinforcing rib group.

[0035] The bracket body 130 is mounted on the inner panel 12 of the engine hood along the width direction of the vehicle body, serving as a mounting base. The bracket body 130 can accommodate structures such as force transmission guide ribs 132 and force transmission guide holes 133 on its surface. The force transmission guide ribs 132 are mounted on the bracket body 130, and the length extension direction of the force transmission guide ribs 132 is the same as the width direction of the vehicle body. The force transmission guide holes 133 are mounted on the bracket body 130 and are adjacent to the force transmission guide ribs 132. Reinforcing rib groups are provided on both sides of the bracket body 130, and the length extension line of the reinforcing rib group intersects with the length extension line of the force transmission guide ribs 132.

[0036] In this embodiment, the reinforcing rib group includes a front reinforcing rib 136 and a rear reinforcing rib 137. Therefore, a plurality of force-transmitting guide ribs 132 are provided on one side of the front reinforcing rib 136 and a plurality of force-transmitting guide ribs 132 are also provided on one side of the rear reinforcing rib 137. For easy distinction, the plurality of force-transmitting guide ribs 132 provided on one side of the front reinforcing rib 136 are referred to as the first force-transmitting guide ribs, and the plurality of force-transmitting guide ribs 132 provided on one side of the rear reinforcing rib 137 are referred to as the second force-transmitting guide ribs.

[0037] More specifically, in this embodiment, reinforcing ribs are fixed on both sides of the support body 130, that is, a front reinforcing rib 136 and a rear reinforcing rib 137 are fixed on each side. Therefore, two first force-transmitting guide ribs are provided, corresponding to the front reinforcing ribs 136 on both sides of the support body 130, and two second force-transmitting guide ribs are provided, corresponding to the rear reinforcing ribs 137 on both sides of the support body 130. When a pedestrian's head collides, the force-transmitting guide ribs 132 and force-transmitting guide holes 133 transmit the collision energy as much as possible to the direction of the reinforcing ribs, while ensuring that the head acceleration curve effectively absorbs energy in the initial stage.

[0038] Furthermore, the front reinforcing rib 136 is fixed to the bracket body 130, and the front reinforcing rib 136 has an acute angle with the horizontal plane. In this embodiment, the direction of the front reinforcing rib 136 is basically consistent with the impact direction of the head, and the angle with the horizontal plane is designed to be between 45° and 60° depending on the height of the vehicle. The rear reinforcing rib 137 is fixed to the bracket body 130 and is vertically arranged on one side of the front reinforcing rib 136.

[0039] The front reinforcing rib 136 and the rear reinforcing rib 137 are both provided with deformation guiding folds 138 in the middle, so that the front reinforcing rib 136 and the rear reinforcing rib 137 form a stepped structure. During the collision of the pedestrian's head, the front reinforcing rib 136 deforms and absorbs energy in sequence, and the rear reinforcing rib 137 deforms and absorbs energy in sequence, thereby gradually reducing the value of the head acceleration curve.

[0040] An inner plate welding surface 135 is provided between the front reinforcing rib 136 and the rear reinforcing rib 137. The inner plate welding surface 135 is welded and fixed to the inner plate of the engine hood 12, thereby increasing the contact area between the inner plate of the engine hood 12 and the inner plate bracket 13.

[0041] Furthermore, the inner panel bracket 13 also includes: a fitting part 131, a recessed platform 139, and a flanged surface 134. The fitting part 131 is disposed on the bracket body 130, and the adhesive is bonded to the fitting part 131. The recessed platform 139 is disposed on the bracket body 130 and is fixed to the engine hood inner panel 12. One end of the bracket body 130 is bent to form a flanged surface 134, and there is a gap between the flanged surface 134 and the engine hood inner panel 12.

[0042] Specifically, the bonding portion 131 is located in the middle of the bracket body 130 and protrudes from the surface of the bracket body 130. The top of the bonding portion 131 is the bonding surface, which is consistent with the curved surface of the engine hood outer panel 11, and a gap is provided between the bonding surface and the engine hood outer panel 11 for the installation of the adhesive. In this embodiment, the adhesive is an expansion film 14, and the gap between the bonding surface and the engine hood outer panel 11 is 3mm.

[0043] In this embodiment, both the recessed platform 139 and the flanged surface 134 are configured to cooperate with the inner panel 12 of the engine hood. The inner panel 12 of the engine hood includes: a sealing strip mounting surface 121, an inner panel vertical surface 123, and an inner panel bottom surface 122. A safety gap is formed between the sealing strip mounting surface 121 and the engine compartment cover 2. The inner panel vertical surface 123 is connected to the sealing strip mounting surface 121; the inner panel bottom surface 122 is connected to the inner panel vertical surface 123. The inner panel bottom surface 122 is lower than the sealing strip mounting surface 121, and the first energy-absorbing structure is positioned above the inner panel bottom surface 122. This arrangement facilitates head roll-over during a collision between a pedestrian and a vehicle, reducing head injury. An opening 124 is provided on the inner panel vertical surface 123, which weakens the strength supporting the inner panel vertical surface 123. At the opening 124, a flap 125 extending towards the inner panel support 13 is provided at one end of the inner panel vertical surface 123. The main function of the recessed platform 139 set on the bracket body 130 is to strengthen the front rigidity of the inner plate bracket 13 and provide a certain support strength in the initial stage of collision energy absorption. The recessed platform 139 is welded and fixed to the flap 125 on the inner plate of the engine hood 12 to ensure sufficient torsional rigidity. When the recessed platform 139 transmits the collision force to the flap 125 on the inner plate of the engine hood 12, the flap 125 deforms to absorb energy.

[0044] The flange 134 is located at the front of the inner panel bracket 13 and above the sealing strip mounting surface 121 of the inner panel 12 of the engine hood. It maintains a 3mm gap with the sealing strip mounting surface 121. During a pedestrian head collision, when the flange 134 impacts the sealing strip mounting surface 121, it deforms and absorbs energy, which can reduce head injury and also accelerate head rollover.

[0045] It should also be noted that, compared to the traditional bracket body 130 being arranged front and rear on the sealing strip mounting surface 121, in this application, the reinforcing ribs on both sides of the bracket body 130 are welded to the bottom surface 122 of the inner plate through the inner plate welding bonding surface 135, and the reinforcing ribs arranged on the left and right deform more thoroughly in the collision.

[0046] Based on the above embodiments, in this embodiment, the second energy-absorbing structure includes a sealing strip structure 4. A 10mm safety gap is left between the inner panel 12 of the engine hood assembly 1 and the engine compartment cover 2. At the same time, a sealing strip structure 4 is arranged in the safety gap. In addition to its sealing function, the sealing strip structure 4 also has a certain buffering and energy-absorbing function. During the collision, it absorbs energy by deforming under the pressure of the inner panel 12 of the engine hood.

[0047] Since the severity of pedestrian head injuries primarily depends on two factors—impact force and duration—this application combines... Figure 6The head impact acceleration curve and injury value curve further illustrate the role of this application in the collision process: In the figure, the solid curve A and the dashed curve B are the head impact acceleration curves with and without the inner plate support 13, respectively; From the acceleration curves, the curve without the inner plate support 13 is smoother, while the curve with the inner plate support 13 has multiple small peaks, and the overall peak time is earlier. Among them, the small peaks 1 to 7 are the deformation energy absorption positions of the engine hood outer plate 11 and expansion film 14, force transmission guide rib 132, flange surface 134 and flap 125, sealing strip, front reinforcing rib 136, headlight 3, and rear reinforcing rib 137, respectively. It can be seen that different structures absorb the collision energy successively in the collision, thereby reducing the injury value. The solid line C and the dashed line D are the damage value curves with and without the inner plate support 13, respectively. The vertical line represents the head integration time domain, and the horizontal line represents the magnitude of the damage value. From the damage value curves, although the head damage time domain with the inner plate support 13 is larger, the damage value is smaller. That is, the inner plate support 13 plays a role in dispersing and reducing the peak acceleration during the entire head collision process, thereby reducing the damage value.

[0048] In summary, this application ensures the installation strength of the headlight 3 while also guaranteeing pedestrian protection performance in the upper outer front area of ​​the vehicle. Given the limited space between the engine hood outer panel 11 and the headlight 3, it absorbs collision energy sequentially before the impact force on the pedestrian's head is transmitted to the headlight 3, thus significantly reducing the injury value to the pedestrian's head. This application has a simple structure, low cost, and reduces constraints on styling and layout, making it suitable for widespread application.

[0049] Secondly, embodiments of this application provide a vehicle that includes the pedestrian protection device provided in any of the above embodiments of this application.

[0050] In this application, by setting a first energy-absorbing structure in the limited space between the outer panel 11 and the inner panel 12 of the engine hood, and setting a second energy-absorbing structure in the limited space between the engine compartment cover 2 and the engine hood assembly 1, when a pedestrian's head hits the outer panel 11 of the engine hood assembly 1, the impact force is transmitted downwards along the first energy-absorbing structure, the second energy-absorbing structure and the engine compartment cover 2 to the headlight 3, absorbing the collision energy step by step, which greatly reduces the injury value of the pedestrian's head.

[0051] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0052] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 limitations, 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 said element.

[0053] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A pedestrian protection device, characterized in that It includes: The engine hood assembly (1) includes an engine hood outer plate (11) and an engine hood inner plate (12), and a first energy-absorbing structure is arranged between the engine hood outer plate (11) and the engine hood inner plate (12); The nacelle cover (2) is arranged below the engine hood assembly (1), and a safety gap is formed between the nacelle cover (2) and the engine hood assembly (1), and a second energy-absorbing structure is arranged in the safety gap, and the second energy-absorbing structure is arranged below the first energy-absorbing structure; The headlamp (3) is arranged below the nacelle cover (2) and connected with the nacelle cover (2); The first energy-absorbing structure includes: The inner plate support (13) is fixed to the top end of the engine hood inner plate (12), and an energy-absorbing force transmission path is arranged on the inner plate support (13) along the vehicle body width direction; The adhesive is bonded between the inner plate support (13) and the engine hood outer plate (11); The inner plate support (13) includes: The support body (130) is arranged on the engine hood inner plate (12) along the vehicle body width direction; The force transmission guide rib (132) is arranged on the support body (130), and the length extension direction of the force transmission guide rib (132) is the same as the vehicle body width direction; The force transmission guide hole (133) is arranged on the support body (130) and adjacent to the force transmission guide rib (132); The support body (130) is provided with a group of reinforcing ribs on both sides, and the length extension line of the group of reinforcing ribs intersects with the length extension line of the force transmission guide rib (132); The inner plate support (13) further includes: The fitting part (131) is arranged on the support body (130), and the adhesive is bonded to the fitting part (131); The sunken platform (139) is arranged on the support body (130), and the sunken platform (139) is fixed to the engine hood inner plate (12); The flange surface (134) is formed by bending one end of the support body (130), and the flange surface (134) has a gap with the engine hood inner plate (12).

2. The pedestrian protection device according to claim 1, wherein: An energy-absorbing force transmission path is arranged on the first energy-absorbing structure along the vehicle body width direction.

3. Pedestrian protection device according to claim 1, characterized in that The group of reinforcing ribs includes: The front reinforcing rib (136) is fixed to the support body (130), and the front reinforcing rib (136) has an included angle with the horizontal plane, and the included angle is an acute angle; The rear reinforcing rib (137) is fixed to the support body (130) and arranged vertically on one side of the front reinforcing rib (136); The front reinforcing rib (136) and the rear reinforcing rib (137) are provided with deformation guiding flanges (138) in the middle part, so that the front reinforcing rib (136) and the rear reinforcing rib (137) form a stepped structure, and the inner plate welding and adhering surface (135) is arranged between the front reinforcing rib (136) and the rear reinforcing rib (137).

4. Pedestrian protection device according to claim 1, characterized in that The engine cover inner plate (12) comprises: A sealing strip mounting surface (121) is formed with a safety gap between the sealing strip mounting surface (121) and the nacelle cover (2); An inner plate vertical surface (123) is connected with the sealing strip mounting surface (121); An inner plate bottom surface (122) is connected with the inner plate vertical surface (123).

5. The pedestrian protection device according to claim 4, characterized in that: The inner plate bottom surface (122) is lower than the sealing strip mounting surface (121), and the first energy absorption structure is arranged above the inner plate bottom surface (122).

6. The pedestrian protection device according to claim 5, characterized in that: The inner plate vertical surface (123) is provided with an opening (124), and one end of the inner plate vertical surface (123) is provided with a turning plate (125) extending to one side of the inner plate support (13), and the turning plate (125) is fixed with the inner plate support (13).

7. An automobile characterized by comprising: It comprises: The pedestrian protection device according to any one of claims 1-6.

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