CN217864074U

CN217864074U - Outer gasbag device of car and unmanned vehicle

Info

Publication number: CN217864074U
Application number: CN202220940759.8U
Authority: CN
Inventors: 王猛; 李勇君; 马克平
Original assignee: Neolix Technologies Co Ltd
Current assignee: Neolithic Zhongyan Shanghai Technology Co ltd
Priority date: 2022-04-21
Filing date: 2022-04-21
Publication date: 2022-11-22
Anticipated expiration: 2032-04-21

Abstract

The utility model relates to an unmanned, unmanned car or autopilot technical field disclose an outer gasbag device of car and unmanned vehicle. The air bag device outside the vehicle comprises a brake air bag, wherein the brake air bag is provided with a first state and a braking state, the brake air bag in the braking state can be arranged below the vehicle body and can be abutted against the running surface, and the braking distance is reduced. By arranging the brake air bag, when the brake air bag is in a braking state, the brake air bag can be arranged below the vehicle body, so that the brake air bag is closer to a running surface; meanwhile, the braking airbag in the braking state can be abutted against the driving surface of the vehicle, the braking distance is reduced by increasing the friction force between the vehicle body and the driving surface, and the safety of pedestrians and vehicles applying the external airbag device is improved.

Description

Outer gasbag device of car and unmanned vehicle

Technical Field

The utility model relates to an unmanned, unmanned car or autopilot technical field especially relate to an outer gasbag device of car and unmanned vehicle.

Background

As the unmanned technology becomes more mature, the vehicle speed becomes faster and faster. Faster vehicle speeds necessarily result in longer braking distances for the unmanned vehicle. If the unmanned vehicle running at high speed cannot complete braking within a short braking distance, collision danger occurs, and great potential safety hazards are caused to pedestrians while the vehicle is damaged.

Therefore, there is a need for an external airbag device and an unmanned vehicle to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Based on above, an object of the utility model is to provide an outer gasbag device of car and unmanned vehicle can assist arresting gear to brake, has reduced braking distance.

In order to achieve the purpose, the utility model adopts the following technical proposal:

an exterior airbag device for a vehicle, comprising:

the braking air bag is provided with a first state and a braking state, the braking air bag in the braking state can be arranged below the vehicle body and can be abutted to the running surface, and the braking distance is reduced.

As a preferable aspect of the vehicle exterior airbag device, the vehicle exterior airbag device further includes an inflator assembly that communicates with the brake airbag to inflate the inside of the brake airbag placed in the first state to the braking state.

In a preferable embodiment of the vehicle exterior airbag device, a brake band is provided on a side of the brake airbag away from the vehicle body to increase a frictional force between the brake airbag and the running surface.

As a preferable scheme of the air bag device outside the vehicle, the extending direction of the braking band and the driving direction of the vehicle form an included angle, and the braking band is concave or convex relative to the driving surface.

As a preferable aspect of the vehicle exterior airbag device, the vehicle exterior airbag device further includes an airbag that is provided in front of the vehicle body, the airbag being provided with a second state and a protection state, the airbag being convertible from the second state to the protection state before a vehicle collision occurs, so that an object is brought into contact with the airbag placed in the protection state; the mounting airbag placed in the protection state is located outside the vehicle body.

In a preferable embodiment of the external airbag device, the airbag is provided integrally with the brake airbag.

As a preferable aspect of the exterior airbag device, the airbag includes a head-protecting airbag and a leg-protecting airbag, and the head-protecting airbag and the leg-protecting airbag are integrally provided.

In a preferable embodiment of the vehicle exterior airbag device, the airbag includes a head protection airbag and a leg protection airbag, and the head protection airbag and the leg protection airbag are provided separately.

An unmanned vehicle comprising a vehicle body and an external air bag device according to any preceding aspect disposed below the vehicle body.

As a preferred scheme of the unmanned vehicle, the unmanned vehicle further comprises a sensing device, the sensing device is used for acquiring the vehicle speed and the distance of the vehicle body target object, and the sensing device is in communication connection with the air bag device outside the vehicle.

The utility model has the advantages that:

the utility model is provided with the braking air bag which can be arranged below the vehicle body when the braking air bag is in a braking state, so that the braking air bag is closer to the running surface; meanwhile, the braking airbag in the braking state can be abutted against the driving surface of the vehicle, the braking distance is reduced by increasing the friction force between the vehicle body and the driving surface, and the safety of pedestrians and vehicles applying the external airbag device is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

Fig. 1 is a schematic view of an air bag device outside an unmanned vehicle according to an embodiment of the present invention;

fig. 2 is a schematic view illustrating the opening of an external airbag device of an unmanned vehicle according to an embodiment of the present invention;

fig. 3 is a schematic view of an external airbag device according to an embodiment of the present invention;

fig. 4 is a schematic view of another external airbag device according to an embodiment of the present invention.

In the figure:

100. a vehicle body; 110. a sensing device;

1. a brake airbag; 11. a braking band;

2. an air bag; 21. a head-protecting airbag; 22. a leg protection airbag.

Detailed Description

In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

The present embodiment discloses an unmanned vehicle including a vehicle body 100, a brake device, and an external airbag device provided below the vehicle body 100. When the unmanned vehicle runs and meets obstacles or pedestrians and needs emergency braking, the air bag device outside the vehicle can assist the braking device in braking the unmanned vehicle, so that the braking distance is greatly reduced, and the safety of the unmanned vehicle running and the safety of the pedestrians are effectively ensured.

As shown in fig. 1 to 4, the present embodiment provides an external airbag device that can be used for the above-described unmanned vehicle, and that includes a brake airbag 1, and the brake airbag 1 is provided with a first state and a braking state, and the brake airbag 1 placed in the braking state can be placed below a vehicle body 100 and can be brought into contact with a running surface to reduce a braking distance.

It should be noted that the first state of the brake airbag 1 is a state in which the brake airbag 1 is not activated and the unmanned vehicle is running normally. Braking state of the brake airbag 1 is activated for assisting the braking state.

By providing the brake airbag 1, when the brake airbag 1 is placed in a braking state, it can be placed below the vehicle body 100 so that the brake airbag 1 is closer to the running surface; meanwhile, the brake airbag 1 in the braking state can also abut against the traveling surface of the vehicle, and the braking distance is reduced by increasing the frictional force between the vehicle body 100 and the traveling surface, thereby improving the safety of pedestrians and vehicles to which the own external airbag device is applied.

Further, the brake airbag 1 is also provided with a first state in which the brake airbag 1 placed in the first state is housed below the vehicle body 100, so that the brake airbag 1 is more quickly switched to the braking state; on the other hand, the appearance of the vehicle body 100 is not affected, and the aesthetic property of the vehicle is ensured.

As an alternative to the vehicle exterior airbag apparatus, the vehicle exterior airbag apparatus further includes an inflator that inflates the brake airbag 1 placed in the first state to a braking state for braking by communicating the inflator with the brake airbag 1 when it is necessary for the brake airbag 1 to participate in braking. It is worth mentioning that the inflation assembly can compress air and inject the compressed air into the brake airbag 1, and can store air in a self-contained air tank.

In other embodiments, the air bag device outside the vehicle generates the gas for charging the brake air bag 1, such as sodium azide (NaN), by a chemical reaction ₃ ) With ammonium Nitrate (NH) ₄ NO ₃ ) When the brake air bag 1 needs to be switched into a braking state, the substances can be rapidly decomposed to generate a large amount of gas, the brake air bag 1 is filled with the gas, the sodium nitride is decomposed to generate nitrogen and solid sodium, and the ammonium nitrate is used as an oxidizing agent.

Alternatively, the brake airbag 1 is detachably disposed below the vehicle body 100, so that the brake airbag 1 can be replaced with a new one after the use of the brake airbag 1 without affecting the continued safe use of the unmanned vehicle.

As an alternative to the external airbag device, a braking band 11 is provided on a side of the brake airbag 1 away from the vehicle body 100, and the braking band 11 is provided to increase a contact area between the brake airbag 1 and the driving surface, thereby increasing a frictional force between the brake airbag 1 and the driving surface and improving a braking effect.

In this embodiment, the extending direction of the braking band 11 forms an included angle with the driving direction of the vehicle, which is beneficial to further increase the friction force between the braking airbag 1 and the driving surface.

In order to further increase the braking effect of the brake airbag 1, a plurality of braking belts 11 are provided, and the plurality of braking belts 11 are arranged in parallel at intervals. In the present embodiment, the brake band 11 is disposed perpendicular to the traveling direction of the vehicle. That is, the side of the brake airbag 1 away from the vehicle body 100 is provided with a plurality of brake bands 11 at intervals in parallel perpendicular to the traveling direction of the vehicle.

It should be noted that the braking band 11 is concave or convex relative to the driving surface, that is, the braking band 11 may be convex on the braking airbag 1, or may be formed by concave arrangement of the side of the braking airbag 1 away from the vehicle body 100, and the specific arrangement mode is not limited.

Optionally, the brake airbag 1 is thickened on the side provided with the brake band 11, so as to avoid the damage of the brake airbag 1 in the braking process, and ensure the effective auxiliary braking effect.

In other embodiments, an uneven structure may be further disposed on a side of the brake airbag 1 away from the vehicle body 100 to achieve an effect of increasing the friction force, and a person skilled in the art may set the uneven structure according to actual needs, which is not specifically limited herein.

The technology for protecting pedestrians by automatically driving vehicles in the running process at the present stage is weak, and the technology of adopting energy absorption blocks and increasing collision collapse space is basically adopted, so that the pedestrian cannot be well protected. Especially, unmanned logistics vehicle, it is different with passenger car molding structure, does not have the space and realizes the protection to the pedestrian through collapsing space and structure yet. In addition, the existing passenger car airbag technology is built in, and is matched with a restraint system to protect a driver and passengers. The working principle is that after collision, a signal is transmitted to the ECU through the collision sensor, then the ECU sends an instruction to the ignition device of the safety airbag, the airbag is ignited and detonated, and personnel in a cockpit are protected from collision injury. This technique can not be external to the vehicle front end, explodes the gasbag again when the automatic driving vehicle after colliding with the pedestrian, can not play the protection to the pedestrian, still produces secondary damage easily, flies the pedestrian bullet.

Therefore, as an alternative to the vehicle exterior airbag device, the vehicle exterior airbag device further includes an airbag 2, the airbag 2 is provided with a second state and a protection state, and before the vehicle collision occurs, the airbag 2 can be changed from the second state to the protection state so that the target object is abutted against the airbag 2 placed in the protection state; the airbag 2 placed in a protection state is located outside the vehicle body 100.

It is to be noted that the second state of the airbag 2 is a state in which the airbag 2 is not activated and the unmanned vehicle is normally running. Protection state of airbag 2 the airbag 2 is activated for protection against a state of damage of an object.

Through set up air bag 2 in the automobile body 100 outside to before the vehicle bumps, air bag 2 converts the protection state into by the second state, avoids pedestrian and automobile body 100's direct collision, has avoided the secondary damage to the pedestrian simultaneously.

Further, the airbag 2 is installed on at least one of four sides of the vehicle body 100, or the airbag 2 is installed on all four sides, so that a pedestrian who collides with the side where the airbag 2 is installed can be protected accordingly.

Preferably, since the collision occurrence probability is greater and the number of times is greater at the front of the vehicle body 100, the airbag 2 is provided only at the front of the vehicle body 100 in the present embodiment. Alternatively, the airbag placed in the second state is disposed at the front of the vehicle body 100, on the one hand, so that the airbag 2 can be closer to a pedestrian in front of the vehicle body 100, so that the transition of the airbag 2 to the protection state is more rapid; on the other hand, the appearance of the vehicle body 100 is not affected, and the aesthetic property of the vehicle is ensured.

It should be noted that the airbag 2 may also be in communication with the inflation assembly for transitioning from the second condition to the protective condition. Of course, the brake airbag 1 and the airbag 2 may have independent inflation components, as long as the respective state transitions can be achieved, and are not particularly limited herein.

Specifically, the airbag 2 includes a head-protecting airbag 21 and a leg-protecting airbag 22 to protect a pedestrian-vulnerable site more specifically.

In one embodiment, as shown in fig. 2 and 3, the head protecting airbag 21 and the leg protecting airbag 22 are separately disposed, and in this case, the head protecting airbag 21 and the leg protecting airbag 22 in the second state may be disposed at corresponding positions in front of the vehicle body 100, and those skilled in the art may separately install and replace the head protecting airbag and the leg protecting airbag as needed, so that the adaptability is better.

In another embodiment, as shown in fig. 4, the head-protecting airbag 21 and the leg-protecting airbag 22 are integrally provided, so that the front coverage of the vehicle body 100 is better, resulting in a better pedestrian protection effect.

Further, the airbag 2 and the airbag 1 are integrally provided, that is, the airbag 1 is integrally provided with the head protecting airbag 21 and the leg protecting airbag 22, so that the airbag 1, the head protecting airbag 21 and the leg protecting airbag 22 can be activated at the same time, and the activation response time is shorter.

The unmanned vehicle further comprises a sensing device 110 for acquiring the vehicle speed and the distance between the vehicle body 100 and a forward target object, and the sensing device 110 is in communication connection with an air bag device outside the vehicle. Exemplarily, the sensing device 110 may specifically be: a vehicle distance detection sensor, a vehicle speed detection sensor, a brake detection sensor and the like.

Specifically, the unmanned vehicle further comprises a control system, and the sensing device 110 and the air bag device outside the vehicle are in communication connection with the control system. Illustratively, the control system is an ECU of the unmanned vehicle.

After the control system obtains the vehicle speed and the distance between the vehicle body 100 and a target object in front, judging whether collision occurs or not, if not, braking in time to avoid collision; if so, a command is issued before the collision is set, the brake airbag 1 is controlled to be switched from the first state to the braking state for assisting braking, and the airbag 2 is controlled to be switched from the second state to the safety state for avoiding direct collision of the target object with the vehicle body 100.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the first feature "on" or "under" the second feature may include the first feature and the second feature being in direct contact, and may also include the first feature and the second feature being in contact not in direct contact but with another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims

1. An exterior airbag device for a vehicle, comprising:

the brake airbag (1) is provided with a first state and a braking state, and the brake airbag (1) in the braking state can be placed below the vehicle body (100) and can be abutted against a running surface to reduce the braking distance.

2. An air bag apparatus outside a vehicle according to claim 1, further comprising an inflator assembly communicating with said brake air bag (1) to inflate the inside of said brake air bag (1) placed in said first state to said braking state.

3. An air-bag arrangement outside a vehicle according to claim 1, characterised in that the side of the brake air-bag (1) remote from the vehicle body (100) is provided with a braking band (11) to increase the friction of the brake air-bag (1) with the driving surface.

4. An air-bag arrangement outside a vehicle according to claim 3, characterised in that the direction of extension of the braking band (11) is arranged at an angle to the direction of travel of the vehicle, the braking band (11) being concave or convex relative to the travel surface.

5. An exterior airbag device according to any of claims 1-4, characterized in that the exterior airbag device further comprises an airbag (2), the airbag (2) being provided with a second state and a protective state, the airbag (2) being convertible from the second state to the protective state before a vehicle collision occurs so that an object abuts against the airbag (2) placed in the protective state; the airbag (2) placed in the protection state is located outside the vehicle body (100).

6. An external airbag device according to claim 5, characterized in that the airbag (2) is provided integrally with the brake airbag (1).

7. An external airbag device according to claim 5, characterized in that the airbag (2) comprises a head-protecting airbag (21) and a leg-protecting airbag (22), the head-protecting airbag (21) and the leg-protecting airbag (22) being provided integrally.

8. An external airbag device according to claim 5, characterized in that the airbag (2) comprises a head-protecting airbag (21) and a leg-protecting airbag (22), the head-protecting airbag (21) and the leg-protecting airbag (22) being provided separately.

9. An unmanned vehicle comprising a vehicle body (100) and the vehicle exterior airbag device according to any one of claims 1 to 8 provided below the vehicle body (100).

10. The unmanned vehicle of claim 9, further comprising a sensing device (110), wherein the sensing device (110) is configured to obtain a vehicle speed and a distance between the vehicle body (100) and a target object, and the sensing device (110) is communicatively coupled to the external airbag device.