CN114056276B - Pedestrian protection engine hood assembly - Google Patents
Pedestrian protection engine hood assembly Download PDFInfo
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- CN114056276B CN114056276B CN202111575152.0A CN202111575152A CN114056276B CN 114056276 B CN114056276 B CN 114056276B CN 202111575152 A CN202111575152 A CN 202111575152A CN 114056276 B CN114056276 B CN 114056276B
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- lock
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
- B60R21/38—Protecting non-occupants of a vehicle, e.g. pedestrians using means for lifting bonnets
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Abstract
The application discloses a pedestrian protection bonnet assembly, which comprises a vehicle body, a bonnet, a single-shaft hinge and a protection front bonnet lock; the front end of the engine cover is rotatably arranged on the vehicle body through a single-shaft hinge, and the rear end of the engine cover is locked on the vehicle body through a protective front cover lock; an exploder is arranged in the protective front cover lock, when a vehicle collides, the exploder is controlled to explode, and the exploder triggers the protective front cover lock to unlock the engine cover, and the rear end of the engine cover is sprung; when the rear end of the engine cover is sprung, the front end of the engine cover is pushed to be lifted by the single-shaft hinge. This application is with the front end at the bonnet with the unipolar hinge installation, and the rear end at the bonnet is installed to the protecgulum lock, and when the vehicle collision, the detonator detonates and triggers the protecgulum lock and make the bonnet rear end spring up, and the bonnet rotates around the unipolar hinge and makes the front end of bonnet also lift up, and the bonnet is whole to be lifted, makes the protection zone maximize of bonnet, realizes the best protection effect to the pedestrian.
Description
Technical Field
The application relates to the technical field of engine hoods, in particular to a pedestrian protection engine hood assembly.
Background
At present, pedestrian protection regulations in the automobile industry are more and more perfect, and requirements on safety star rating are also higher and higher. Pedestrian protection technology is becoming more and more popular, and mainly relates to applications of energy absorbing materials of vehicle bodies, such as energy absorbing bumpers, soft engine cover materials, headlamps, accessories, and the like without acute angles. The bonnet protection system is the most commonly used pedestrian protection method in the industry. In the event of a collision of the vehicle, the engine hood is quickly lifted by the detonation or ejection device. The engine cover is separated from the front engine room hard point, when the head of a pedestrian touches the engine cover, the engine cover is separated from the engine room hard point after secondary deformation, and the injury value is greatly reduced.
The existing engine cover has the pedestrian protection function by virtue of a pedestrian protection hinge, the pedestrian protection hinge is generally arranged at the rear end of the engine cover, and when collision occurs, the pedestrian protection hinge is sprung up to lift the rear end of the engine cover; however, the front cover lock at the front end of the engine cover is still in a locking state, and at the moment, the front end of the engine cover is lifted, and the whole engine cover rotates by taking the pedestrian protection hinge as an axis, so that the front end of the engine cover moves downwards to a certain extent; when a pedestrian collides with only a small area of the front end of the hood, more serious injury may be caused to the pedestrian. Accordingly, there is a need to provide a pedestrian protection hood assembly that enlarges the hood protection area and has a more comprehensive protection effect.
Disclosure of Invention
The utility model provides a solve the undersea that the bonnet protection area is little that the bonnet front end sinks when the pedestrian protection hinge bounces among the prior art, provide a pedestrian protection bonnet subassembly that enlarges bonnet protection area, protection effect are more comprehensive.
The technical scheme of the application provides a pedestrian protection engine hood assembly, which comprises an engine body, an engine hood, a single-shaft hinge and a protection front hood lock;
the front end of the engine cover is rotatably arranged on the vehicle body through the single-shaft hinge, and the rear end of the engine cover is locked on the vehicle body through the protective front cover lock;
an exploder is arranged in the protective front cover lock, when a vehicle collides, the exploder is controlled to explode, the exploder triggers the protective front cover lock to unlock the engine cover, and the rear end of the engine cover is sprung;
when the rear end of the engine cover is sprung, the single-shaft hinge simultaneously pushes the front end of the engine cover to be lifted.
Further, the device also comprises a daily front cover lock which is matched and connected with the protective front cover lock;
the protective front cover lock is arranged on the engine cover, and the daily front cover lock is arranged on the vehicle body; or alternatively
The daily front cover lock is mounted on the engine cover, and the protective front cover lock is mounted on the vehicle body.
Further, the protective front cover lock is provided with a first locking claw, and the daily front cover lock is provided with a second locking claw;
the hood is locked when the first locking claw and the second locking claw are cooperatively connected.
Further, one end of the single-axis hinge is rotatably arranged on the vehicle body, the other end of the single-axis hinge is fixedly arranged at the front end of the engine cover, and a torsion energy storage piece is arranged between the single-axis hinge and the vehicle body;
when the rear end of the engine cover is locked by the protective front cover, the torsion energy storage piece stores energy;
when the protection front cover lock releases the locking of the engine cover, the torsion energy storage part releases energy to drive the engine cover to lift upwards.
Further, the exploder is in communication connection with the vehicle-mounted electronic control unit;
and when the vehicle-mounted electronic control unit receives a vehicle collision signal, the exploder is controlled to explode.
Further, the protective front cover lock further comprises a shell, a locking piece and a limiting piece, wherein the locking piece and the limiting piece are rotatably installed in the shell, the initiator is connected with the limiting piece, and the locking piece rotates between a locking position and an unlocking position;
when the protective front cover lock is in a locking state, the limiting piece limits the locking piece to the locking position, and the locking piece is connected with the engine cover in a matched mode;
when the exploder explodes, the exploder promotes the locating part rotates, the latch part rotates to the unblock position, the latch part with the bonnet breaks away from, the protection protecgulum lock is in the unblock state.
Further, the limiting piece is provided with a claw, and the locking piece is provided with a locking limiting claw and an unlocking limiting claw;
when the locking piece is positioned at the locking position, the locking limiting claw is matched with the claw;
when the locking piece is located at the unlocking position, the unlocking limiting claw is matched with the claw.
Further, a first energy storage piece is connected between the locking piece and the shell, a second energy storage piece is connected between the limiting piece and the shell, and when the protective front cover lock is in a locking state, the first energy storage piece and the second energy storage piece are both in an energy storage state;
when the exploder explodes, the second energy storage piece releases energy to push the limiting piece to rotate, and the locking limiting claw is separated from the claw;
and meanwhile, the first energy storage piece releases energy to push the locking piece to rotate to the unlocking position.
Further, the initiator comprises a gas generating part and a jacking part, wherein the gas generating part is fixedly arranged in the shell, and the jacking part is connected with the limiting piece;
when the initiator is detonated, the jacking part stretches out relative to the gas generating part to push the limiting part to rotate.
Further, two single-shaft hinges are arranged and are respectively connected to two sides of the front end of the engine cover; the protective front cover lock is at least provided with one.
After the technical scheme is adopted, the method has the following beneficial effects:
this application is with the front end at the bonnet with the unipolar hinge installation, and the rear end at the bonnet is installed to the protecgulum lock, and when the vehicle collision, the detonator detonates and triggers the protecgulum lock and make the bonnet rear end spring up, and the bonnet rotates around the unipolar hinge and makes the front end of bonnet also lift up, and the bonnet is whole to be lifted, makes the protection zone maximize of bonnet, realizes the best protection effect to the pedestrian.
Drawings
The disclosure of the present application will become more readily understood with reference to the accompanying drawings. It should be understood that: the drawings are for illustrative purposes only and are not intended to limit the scope of the present application. In the figure:
FIG. 1 is a schematic view of a pedestrian protection hood assembly in accordance with one embodiment of the present application;
FIG. 2 is a schematic view of the structure of a pedestrian protection hood assembly with the hood raised in accordance with one embodiment of the present application;
FIG. 3 is a schematic view of the structure of the lock for the protective front cover in a locked state according to an embodiment of the present application;
fig. 4 is a schematic structural view of the protective front cover lock in an unlocked state according to an embodiment of the present application.
Reference numeral control table:
the vehicle body 01, the hood 02, the single-axis hinge 03, the protective front cover lock 04, the initiator 41, the gas generating portion 411, the jack-up portion 412, the catch piece 42, the lock restricting claw 421, the unlock restricting claw 422, the first lock claw 423, the restricting piece 43, the claw 431, the first shaft 44, and the second shaft 45.
Detailed Description
Specific embodiments of the present application are further described below with reference to the accompanying drawings.
It is easy to understand that, according to the technical solution of the present application, those skilled in the art may replace various structural manners and implementation manners without changing the true spirit of the present application. Accordingly, the following detailed description and drawings are merely illustrative of the present application and are not intended to be exhaustive or to be limiting of the application.
Terms of orientation such as up, down, left, right, front, rear, front, back, top, bottom, etc. mentioned or possible to be mentioned in the present specification are defined with respect to the configurations shown in the drawings, which are relative concepts, and thus may be changed according to different positions and different use states thereof. These and other directional terms should not be construed as limiting terms. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, 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; can be directly connected or indirectly connected through an intermediate medium, and can be communication between the two components. The above-described specific meanings belonging to the present application are understood as appropriate by those of ordinary skill in the art.
The pedestrian protection bonnet assembly in the embodiment of the application, as shown in fig. 1 and 2, comprises a vehicle body 01, a bonnet 02, a single-axis hinge 03 and a protection front bonnet lock 04;
the front end of the engine cover 02 is rotatably mounted on the vehicle body 01 through a single-shaft hinge 03, and the rear end of the engine cover 02 is locked on the vehicle body through a protective front cover lock 04;
an initiator 41 is arranged in the protective front cover lock 04, when a vehicle collides, the initiator 41 is controlled to detonate, and the initiator 41 triggers the protective front cover lock 04 to unlock the engine cover 02, and the rear end of the engine cover 02 is sprung;
when the rear end of the hood 02 is sprung, the single-axis hinge 03 simultaneously pushes the front end of the hood 02 up.
The application installs the front end at the hood 02 with the single-axis hinge 03, protects the front cover lock 04 and installs at the rear end of hood 02, protects the front cover lock 04 and is used for locking the hood 02 on the automobile body, makes the hood 02 be in the closed state.
The initiator 41 triggered during collision is provided in the protective front cover lock 04, and when a vehicle collides, the protective front cover lock is triggered to unlock the locking of the engine cover 02, and the engine cover 02 is lifted up integrally under the action of the torsion force of the single-axis hinge 03: as shown by an arrow in fig. 1, the rear end of the hood 02 is sprung upward while the entire hood 02 rotates in the counterclockwise direction about the uniaxial hinge 03.
Specifically, the single-axis hinges 03 are provided in two, and are respectively connected to both sides of the front end of the bonnet 02; at least one protective front cover lock 04 is arranged, if two or more protective front cover locks 04 are arranged, the protective front cover locks 04 are uniformly distributed along the front end of the engine cover 02, and when collision occurs, all the protective front cover locks 04 trigger unlocking at the same time.
All the detonators 41 of the protective front cover lock 04 are in communication connection with a vehicle-mounted electronic control unit (a driving computer); when the vehicle-mounted electronic control unit receives a vehicle collision signal, the initiator 41 is controlled to initiate. The initiator 41 responds to the vehicle collision signal, and the vehicle-mounted electronic control unit controls the initiation of the initiator, rather than a mechanical linkage structure, so that the timely response of the initiator 41 can be ensured, and the pedestrian is protected.
The pedestrian protection engine hood assembly has the advantages that when collision occurs, the whole engine hood 02 is lifted upwards to a certain height, and all areas of the engine hood are protection areas, so that the protection areas are maximized, and the protection effect on pedestrian collision is improved.
In one embodiment, the device further comprises a daily front cover lock (not shown) in matched connection with the protective front cover lock 04;
the protective front cover lock 04 is arranged on the engine cover 02, and the daily front cover lock is arranged on the vehicle body 01; or alternatively
The daily front cover lock is mounted on the engine cover 02, and the protective front cover lock is mounted on the vehicle body 01.
The protective front cover lock 04 and the daily front cover lock are respectively arranged on the engine cover 02 and the vehicle body 01, the engine cover 02 is in a closed state when the protective front cover lock and the daily front cover lock are matched with each other, and the engine cover 02 is opened when the protective front cover lock and the daily front cover lock are separated from each other.
Specifically, the protective front cover lock 04 is provided with a first locking claw 423 (see fig. 3 and 4), and the daily front cover lock is provided with a second locking claw;
the hood 02 is locked when the first locking claw 423 is cooperatively connected with the second locking claw.
The protective front cover lock 04 and the daily front cover lock are locked by the mutual cooperation of the first locking claw 423 and the second locking claw. Upon initiation of the initiator 41 protecting the front cover lock 04, the first locking claw 423 is driven to be separated from the second locking claw, thereby opening the hood 02.
As an example, the daily front cover lock is provided with a driving mechanism for driving the second locking claw to operate, and when a non-collision occurs, for example, when a vehicle is repaired or a fitting is replaced, the driving mechanism in the daily front cover lock is controlled to drive the second locking claw to operate, so that the hood 02 is opened so that the second locking claw is separated from the first locking claw 423. For the driving structure of the daily front cover lock, see the front cover lock structure in the prior art, and the description thereof is omitted.
According to the embodiment of the application, the daily front cover lock and the second locking claw are arranged, so that the front cover lock 04 can be matched and locked with the protection front cover lock. And a driving structure can be further arranged in the daily front cover lock to distinguish the action mode of opening the engine cover during daily opening of the engine cover from the action mode of opening the engine cover during collision.
In one embodiment, one end of the single-axis hinge 03 is rotatably mounted on the vehicle body 01, the other end of the single-axis hinge 03 is fixedly mounted at the front end of the engine cover 02, and a torsion energy storage member (not shown) is arranged between the single-axis hinge 03 and the vehicle body 01;
when the rear end of the engine cover 02 is locked by the protective front cover lock 04, the torsion energy storage part stores energy;
when the lock of the protective front cover lock 04 to the engine cover 02 is released, the torsion energy storage element releases energy to drive the engine cover 02 to lift upwards.
Specifically, the uniaxial hinge 03 connects the vehicle body 01 and the hood 02, and the uniaxial hinge 03 is rotatable about a connecting shaft with the vehicle body 01, the longitudinal direction of the uniaxial hinge 03 being set in the front-rear direction of the vehicle body, and the connecting shaft being set in the left-right direction of the vehicle body. The hood 02 is attached to the other end of the single-axis hinge 03 so that the hood 02 can be turned around the attachment shaft to be opened and closed.
A torsion energy storage member, such as a torsion spring, a tension spring, etc., is connected between the engine cover 02 and the single-axis hinge 03, and the torsion energy storage member is used for providing torsion force for the single-axis hinge 03, and is used for driving the single-axis hinge 03 to drive the engine cover 02 to rotate relative to the connecting shaft when the front cover lock 04 is protected from locking the engine cover 02, so that the engine cover 02 is lifted integrally.
In one embodiment, as shown in fig. 3 and 4, the protective front cover lock 04 further includes a housing (not shown) and a latch member 42 and a stopper 43 rotatably mounted in the housing, the initiator 41 being connected to the stopper 43, the latch member 42 being rotatable between a locked position and an unlocked position;
when the protective front cover lock 04 is in a locking state, the limiting piece 43 limits the locking piece 42 to a locking position, and the locking piece 42 is matched and connected with the engine cover 02;
when the initiator 41 is detonated, the initiator 41 pushes the limiting piece 43 to rotate, the locking piece 42 rotates to the unlocking position, the locking piece 42 is separated from the engine cover 02, and the front cover lock 04 is protected to be in the unlocking state.
Wherein the catch member 42 is mounted on a first shaft 44 in the housing, the catch member 42 being rotatable about the first shaft 44; the stopper 43 is mounted on a second shaft 45 in the housing, and the stopper 43 is rotatable about the second shaft 45.
The catch member 42 rotates between the locked position and the unlocked position under the restriction of the stopper 43.
Specifically, the limiting member 43 is provided with a claw 431, and the catch member 42 is provided with a locking limiting claw 421 and an unlocking limiting claw 422;
as shown in fig. 3, when the catch piece 42 is located at the locking position, the locking limit claw 421 is engaged with the claw 431;
as shown in fig. 4, when the catch member 42 is in the unlocked position, the unlocking limiting pawl 422 is engaged with the pawl 431.
The locking and unlocking limit claws 421 and 422 are respectively matched with the claws 431 of the limit part 43 through the arrangement of the locking and unlocking limit claws 421 and 422 on the locking and locking part 42, so that the locking and unlocking limit of the locking and unlocking part 42 is realized.
As shown in fig. 3, in the locked state, the lock restricting pawl 421 cooperates with the pawl 431 to restrict the catch piece 42 to the lock position for locking the hood 02. When the initiator 41 detonates, the initiator 41 pushes the limiting piece 43 to rotate clockwise around the second shaft 45, so that the claw 431 and the locking limiting claw 421 are separated, the locking piece 42 rotates clockwise around the first shaft 44 until the claw 431 and the unlocking limiting claw 422 are matched, at this time, the locking piece 42 rotates to an unlocking position shown in fig. 4, and the first locking claw 423 arranged on the locking piece 42 is driven to rotate, so that the front cover lock 04 is protected to be in an unlocking state.
Further, a first energy storage member is connected between the locking member 42 and the housing, a second energy storage member is connected between the limiting member 43 and the housing, and when the front cover lock 04 is in a locking state, the first energy storage member and the second energy storage member are both in an energy storage state;
when the initiator 41 is detonated, the second energy storage piece releases energy to push the limiting piece 43 to rotate, and the locking limiting claw 421 is separated from the claw 431;
at the same time, the first energy storage member releases energy to push the locking member 42 to rotate to the unlocking position.
Specifically, the second energy storage member is sleeved outside the second periphery 45, one end of the second energy storage member is connected with the second shaft 45, one end of the second energy storage member is connected with the limiting member 43, and when the protective front cover lock 04 is in the locking state shown in fig. 3, the first energy storage member stores energy. When the initiator 41 is detonated, the second energy storage member releases energy, and the limiting member 43 rotates clockwise around the second shaft 45 under the combined action of the driving force of the initiator 41 and the torsion force of the second energy storage member, so that the limiting member 43 can respond to a collision event quickly.
The first energy storage member is sleeved outside the first shaft 44, one end of the first energy storage member is connected with the first shaft 44, and the other end of the first energy storage member is connected with the locking member 42, so that when the locking member 42 is positioned at the locking position shown in fig. 3, the first energy storage member stores energy. When the initiator 41 is detonated, after the limiting piece 43 rotates clockwise, the locking limiting claw 421 and the claw 431 are separated, the first energy storage piece releases energy, the locking piece 42 rotates clockwise around the first shaft 44 under the action of the torsion force of the first energy storage piece until the unlocking limiting claw 422 and the claw 431 are matched, and the locking piece 42 is located in an unlocking position shown in fig. 4.
In one embodiment, as shown in fig. 4, the initiator 41 includes a gas generating portion 411 and a jack-up portion 412, the gas generating portion 411 is fixedly installed in the housing, and the jack-up portion 412 is connected with the stopper 43;
when the initiator 41 is initiated, the jack 412 extends out relative to the gas generating portion 411, and the stopper 43 is pushed to rotate.
Specifically, the initiator 41 is composed of a gas generating portion 411 and a jack-up portion 412, wherein a high-pressure gas chamber is provided in the gas generating portion 411, and in a normal state, the high-pressure gas chamber is closed, and when the in-vehicle electronic control unit receives a collision signal, the ejection of the high-pressure gas in the high-pressure gas chamber is controlled to eject the jack-up portion 412. The jack-up portion 412 pushes the stopper 43 to rotate when extended, thereby triggering the unlocking of the protective front cover lock 04.
Optionally, an initiator mounting seat for mounting the initiator 41 may also be provided in the protective front cover lock 04, the initiator mounting seat being rotatably mounted in the housing as well, the initiator mounting seat being rotatable between a first position and a second position, the initiator mounting seat being in the first position when the protective front cover lock 04 is in the locked state; when the initiator mounting seat rotates to the second position, the initiator mounting seat drives the initiator 41 to integrally rotate, so that the initiator 41 integrally pushes the limiting piece 43 to rotate clockwise, and the protective front cover lock 04 is unlocked.
In this technical solution, the driving structure is not required to be provided in the daily front cover lock, and when a non-collision occurs, for example, when a vehicle is repaired or a fitting is replaced, only the initiator mounting seat is required to be driven to rotate, so that the protective front cover lock 04 can be opened, and the actuation of the initiator 41 is not affected when the collision occurs.
In addition, in order to avoid collision, the initiator 41 is required to push the initiator mounting seat reversely during initiation, and a baffle plate is required to be arranged in the shell to limit the initiator mounting seat at the first position.
The above technical schemes can be combined according to the need to achieve the best technical effect.
What has been described above is merely illustrative of the principles and preferred embodiments of the present application. It should be noted that, for a person skilled in the art, embodiments which are obtained by appropriately combining the technical solutions respectively disclosed in the different embodiments are also included in the technical scope of the present invention, and that several other modifications are possible on the basis of the principles of the present application and should also be regarded as the protection scope of the present application.
Claims (9)
1. A pedestrian protection hood assembly comprising a body, a hood, a single axis hinge, and a protective front hood lock;
the front end of the engine cover is rotatably arranged on the vehicle body through the single-shaft hinge, and the rear end of the engine cover is locked on the vehicle body through the protective front cover lock;
an exploder is arranged in the protective front cover lock, when a vehicle collides, the exploder is controlled to explode, the exploder triggers the protective front cover lock to unlock the engine cover, and the rear end of the engine cover is sprung;
when the rear end of the engine cover is sprung, the single-shaft hinge simultaneously pushes the front end of the engine cover to be lifted;
one end of the single-axis hinge is rotatably arranged on the vehicle body, the other end of the single-axis hinge is fixedly arranged at the front end of the engine cover, and a torsion energy storage piece is arranged between the single-axis hinge and the vehicle body;
when the rear end of the engine cover is locked by the protective front cover, the torsion energy storage piece stores energy;
when the protection front cover lock releases the locking of the engine cover, the torsion energy storage part releases energy to drive the engine cover to lift upwards.
2. The pedestrian protection hood assembly of claim 1 further comprising a day-to-day front hood lock cooperatively connected with the protection front hood lock;
the protective front cover lock is arranged on the engine cover, and the daily front cover lock is arranged on the vehicle body; or alternatively
The daily front cover lock is mounted on the engine cover, and the protective front cover lock is mounted on the vehicle body.
3. The pedestrian protection hood assembly of claim 2 wherein the protective front cover latch is provided with a first locking claw and the everyday front cover latch is provided with a second locking claw;
the hood is locked when the first locking claw and the second locking claw are cooperatively connected.
4. The pedestrian protection hood assembly of claim 1 wherein the initiator is communicatively connected to an on-board electronic control unit;
and when the vehicle-mounted electronic control unit receives a vehicle collision signal, the exploder is controlled to explode.
5. The pedestrian protection hood assembly of any one of claims 1-4 wherein the protective front hood lock further includes a housing and a catch member and a limiter rotatably mounted in the housing, the initiator being coupled to the limiter member, the catch member rotating between a locked position and an unlocked position;
when the protective front cover lock is in a locking state, the limiting piece limits the locking piece to the locking position, and the locking piece is connected with the engine cover in a matched mode;
when the exploder explodes, the exploder promotes the locating part rotates, the latch part rotates to the unblock position, the latch part with the bonnet breaks away from, the protection protecgulum lock is in the unblock state.
6. The pedestrian protection hood assembly of claim 5 wherein the retainer is provided with a pawl, and the latch is provided with a locking pawl and an unlocking pawl;
when the locking piece is positioned at the locking position, the locking limiting claw is matched with the claw;
when the locking piece is located at the unlocking position, the unlocking limiting claw is matched with the claw.
7. The pedestrian protection hood assembly of claim 6, wherein a first energy storage member is connected between the latch member and the housing, a second energy storage member is connected between the limit member and the housing, and both the first energy storage member and the second energy storage member are in an energy storage state when the protection front cover lock is in a locked state;
when the exploder explodes, the second energy storage piece releases energy to push the limiting piece to rotate, and the locking limiting claw is separated from the claw;
and meanwhile, the first energy storage piece releases energy to push the locking piece to rotate to the unlocking position.
8. The pedestrian protection hood assembly of claim 5 wherein the initiator includes a gas generating portion fixedly mounted in the housing and a jacking portion connected to the retainer;
when the initiator is detonated, the jacking part stretches out relative to the gas generating part to push the limiting part to rotate.
9. The pedestrian protection hood assembly of any one of claims 1-4 wherein the single-axis hinge is provided in two, respectively connected to both sides of the hood front end; the protective front cover lock is at least provided with one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111575152.0A CN114056276B (en) | 2021-12-21 | 2021-12-21 | Pedestrian protection engine hood assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111575152.0A CN114056276B (en) | 2021-12-21 | 2021-12-21 | Pedestrian protection engine hood assembly |
Publications (2)
| Publication Number | Publication Date |
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| CN114056276A CN114056276A (en) | 2022-02-18 |
| CN114056276B true CN114056276B (en) | 2023-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111575152.0A Active CN114056276B (en) | 2021-12-21 | 2021-12-21 | Pedestrian protection engine hood assembly |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116176487A (en) * | 2022-07-27 | 2023-05-30 | 中国第一汽车股份有限公司 | Automobile active engine cover executing mechanism, system, control method, maintenance method and storage medium |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203681475U (en) * | 2013-10-22 | 2014-07-02 | 长安大学 | Active reversible automobile engine hood with synchronously lifted front and back |
| CN203681476U (en) * | 2014-01-10 | 2014-07-02 | 长安大学 | Reversible type front and back synchronous lifting mechanism for automobile engine cover |
| KR102596236B1 (en) * | 2016-11-23 | 2023-11-01 | 현대자동차주식회사 | Active hood device for vehicle |
| CN107009999A (en) * | 2017-04-13 | 2017-08-04 | 成都科力夫科技有限公司 | The bonnet of human body is protected when hitting |
| CN207842877U (en) * | 2017-12-28 | 2018-09-11 | 爱驰汽车有限公司 | Preceding cover hinge arrangement with pedestrian protecting function |
| JP7011985B2 (en) * | 2018-07-17 | 2022-02-10 | 本田技研工業株式会社 | Body structure |
| JP7143237B2 (en) * | 2019-03-11 | 2022-09-28 | 本田技研工業株式会社 | Hood pop-up structure |
| CN109927665A (en) * | 2019-03-18 | 2019-06-25 | 厦门理工学院 | A kind of protective device based on children pedestrian, guard method and automobile |
| CN213831608U (en) * | 2020-09-17 | 2021-07-30 | 华人运通(江苏)技术有限公司 | Novel active engine hood structure |
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| CN114056276A (en) | 2022-02-18 |
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