CN110371075A - Active device for protecting legs of passersby - Google Patents
Active device for protecting legs of passersby Download PDFInfo
- Publication number
- CN110371075A CN110371075A CN201910710951.0A CN201910710951A CN110371075A CN 110371075 A CN110371075 A CN 110371075A CN 201910710951 A CN201910710951 A CN 201910710951A CN 110371075 A CN110371075 A CN 110371075A
- Authority
- CN
- China
- Prior art keywords
- gas curtain
- active device
- cover board
- front bumper
- passersby
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000001133 acceleration Effects 0.000 claims abstract description 21
- 230000000977 initiatory effect Effects 0.000 claims abstract description 17
- 238000005474 detonation Methods 0.000 claims abstract description 12
- 241000736199 Paeonia Species 0.000 claims abstract description 9
- 235000006484 Paeonia officinalis Nutrition 0.000 claims abstract description 9
- 230000002265 prevention Effects 0.000 claims description 10
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 230000002745 absorbent Effects 0.000 abstract description 11
- 239000002250 absorbent Substances 0.000 abstract description 11
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 230000006378 damage Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
-
- 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
- B60R21/36—Protecting non-occupants of a vehicle, e.g. pedestrians using airbags
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention discloses a kind of active device for protecting legs of passersbies, including crash sensor, control module, initiating unit and gas curtain；The crash sensor is used to detect the acceleration of Chinese herbaceous peony pedestrian, and the acceleration signal that will acquire passes to the control module；The control module issues time break for judging whether after receiving the acceleration signal；The initiating unit is for detonating and inflating into the gas curtain after receiving the time break；It is unfolded after the gas curtain inflation towards Chinese herbaceous peony.The present invention replaces conventional energy absorbent block using gas curtain, and when there is the generation of pedestrian impact accident, initiating unit starting, gas curtain detonates rapidly inflation, and is unfolded forward, absorbs collision energy, protection pedestrian shank is safe.The present invention is folded compression before gas curtain detonation, occupies little space, can shorten front overhang length due to eliminating conventional use of energy absorbent block.
Description
Technical field
The present invention relates to automobile technical field more particularly to a kind of active pedestrian's legs suitable for automobile front beam system
Portion's protective device.
Background technique
Device for protecting legs of passersby is conducive to preferably absorb collision energy when pedestrian impact accident process occurs, protection
Pedestrian shank safety.If collision only results in the damage of gas curtain cover board, after-sales service only needs to change gas curtain and gas curtain cover board, saves
Maintenance cost.And the space between front bumper covering and collision prevention girders is liberated, shorter front overhang is allowed to arrange.
Common pedestrian shank energy absorption device is energy-absorbing block assembly on automobile at present, and energy absorbent block is generally EPP material, also has
Minority is TPO injected plastics material.
Energy absorbent block is between front bumper covering and energy absorbent block, and in order to avoid occurring in front bumper installation process
Interference problem, energy absorbent block and adjacent non-installation part must assure that sufficiently large gap.
This energy absorption device can absorb most of collision energy, protection pedestrian shank peace when pedestrian occurs
Entirely.But since energy-absorbing block size is bigger, and to guarantee with peripheral component gap, cause to occupy during arrangement of parts big
The space of amount, it is very big to front overhang effect length.
It occupies little space therefore, it is necessary to design one kind, the active pedestrian lower leg protection of front overhang length can be shortened
Device.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide one kind to occupy little space, before capable of shortening automobile
The active device for protecting legs of passersby of outstanding length.
Technical solution of the present invention provides a kind of active device for protecting legs of passersby, including crash sensor, control module,
Initiating unit and gas curtain；
The crash sensor is used to detect the acceleration of Chinese herbaceous peony pedestrian, and the acceleration signal that will acquire pass to it is described
Control module；
The control module issues time break for judging whether after receiving the acceleration signal；
The initiating unit is for detonating and inflating into the gas curtain after receiving the time break；
It is unfolded after the gas curtain inflation towards Chinese herbaceous peony.
Further, the active device for protecting legs of passersby further includes gas curtain cover board, and the gas curtain cover board is mounted on vapour
On the front bumper covering of vehicle and it is located at the front side of the gas curtain, by the gas curtain cover board from the preceding guarantor when inflatable curtain deployment
It is ejected on dangerous thick stick covering.
Further, the gas curtain and the initiating unit be mounted on the front bumper covering and automobile collision prevention girders it
Between.
Further, seam broken has been offered on the front bumper covering, the gas curtain cover board is connected by a snap in institute
It has stated in seam broken, seam broken is stretched out from described when the inflatable curtain deployment.
Further, the gas curtain cover board and the front bumper covering are made of plastics,
Further, the crash sensor is mounted on the front bumper assembly of automobile.
Further, the active device for protecting legs of passersby further includes harness, and the harness is mounted on the preceding guarantor of automobile
On dangerous thick stick assembly, for transmitting the acceleration signal and the time break.
Further, the control module integrates in finished vehicle electronic control unit.
After adopting the above technical scheme, having the following beneficial effects:
The present invention replaces conventional energy absorbent block using gas curtain, when there is the generation of pedestrian impact accident, initiating unit starting, and gas
Curtain detonates rapidly inflation, and is unfolded forward, absorbs collision energy, protection pedestrian shank safety.The present invention is due to eliminating routine
The energy absorbent block used is folded compression before gas curtain detonation, occupies little space, can shorten front overhang length.
Detailed description of the invention
Referring to attached drawing, the disclosure of the present invention will become more readily understood.It is understood that these attached drawings are merely illustrative
Purpose, and be not intended to limit the scope of protection of the present invention.In figure:
Fig. 1 is the cross-sectional view in one embodiment of the invention before the detonation of active device for protecting legs of passersby；
Fig. 2 is the cross-sectional view in one embodiment of the invention after the detonation of active device for protecting legs of passersby；
Fig. 3 is the perspective view in one embodiment of the invention before the detonation of active device for protecting legs of passersby；
Fig. 4 is the perspective view in one embodiment of the invention after the detonation of active device for protecting legs of passersby；
Fig. 5 is the partial structural diagram of active device for protecting legs of passersby in one embodiment of the invention.
The appended drawing reference table of comparisons:
1 gas curtain of crash sensor, 2 gas curtain cover board 3
Buckle 31 harness, 4 front bumper covering 10
Play 101 collision prevention girders of seam broken, 20 front bumper assembly 100
Specific embodiment
Further illustrate a specific embodiment of the invention with reference to the accompanying drawing.
It is readily appreciated that, according to the technique and scheme of the present invention, in the case where not changing true spirit, the general skill of this field
The various structures mode and implementation that art personnel can be replaced mutually.Therefore, following specific embodiments and attached drawing are only
To the exemplary illustration of technical solution of the present invention, and it is not to be construed as whole of the invention or is considered as to inventive technique scheme
It defines or limits.
It mentions in the present specification or up, down, left, right, before and after, front, the back side, top, the bottom that may mention etc.
Positional terms are defined relative to each construction shown in the drawings, they are opposite concepts, and it is therefore possible to can root
Correspondingly changed according to different location locating for it, different use states.So also should not be by these or others side
Position term is construed to restricted term.
In the present embodiment, as shown in Figure 1 and Figure 5, active device for protecting legs of passersby, including crash sensor 1, control mould
Block, initiating unit and gas curtain 2；
Crash sensor 1 is used to detect the acceleration of Chinese herbaceous peony pedestrian, and the acceleration signal that will acquire passes to control mould
Block；
Control module issues time break for judging whether after receiving acceleration signal；
Initiating unit is for detonating and inflating into gas curtain 2 after receiving time break；
Gas curtain 2 is unfolded after inflating towards Chinese herbaceous peony.
Replace conventional energy absorbent block in the present embodiment using gas curtain, when there is the generation of pedestrian impact accident, crash sensor 1
It detects acceleration, and acceleration signal is passed into control module, control module judges that acceleration signal is more than the threshold of setting
Value issues time break to initiating unit, and initiating unit starting is detonated and inflated into gas curtain 2, the detonation inflation rapidly of gas curtain 2,
And be unfolded forward, absorb collision energy, protection pedestrian shank safety.The present embodiment eliminates conventional use of energy absorbent block, liberation
Space between front bumper covering 10 and collision prevention girders 20, can shorten front overhang length.Gas curtain 2 is folded pressure before detonation
Contracting, the volume that gas curtain 20 occupies are very small.After the detonation expansion of gas curtain 2, expands and stretch out from Chinese herbaceous peony, for protecting pedestrian shank.
Further, as shown in Figs. 1-2, active device for protecting legs of passersby further includes gas curtain cover board 3, and gas curtain cover board 3 is pacified
Front side (i.e. the right side of Fig. 2-3) on the front bumper covering 10 of automobile and positioned at gas curtain 2, by gas curtain when gas curtain 2 is unfolded
Cover board 3 is ejected from preceding Abdeckung Stossfaenger 10.
Specifically, as shown in figures 1 and 3, before gas curtain 2 detonates, positioned at the dead astern of gas curtain cover board 3.Gas curtain cover board 3 is with before
Abdeckung Stossfaenger 10 is seen as an entirety from the appearance of automobile, and gas curtain cover board 3 blocks gas curtain 2.
As shown in Figure 2 and Figure 4, after gas curtain 2, which detonates, to be unfolded, gas curtain 2 expands, and impacts gas curtain cover board 3 forward, by gas curtain
Cover board 3 is released forward, and gas curtain cover board 3 is separated with front bumper covering 10 at this time.Gas curtain 2 is at least partly from preceding Abdeckung Stossfaenger 10
In reach outside vehicle, for buffering pedestrian shank.
Gas curtain cover board 3 is ejected by gas curtain 2, but does not damage the other parts of front bumper assembly 100.If collision only results in gas
Curtain cover board 3 damages, then no replacement is required when after-sales service entire front bumper assembly 100, only needs to change gas curtain 2 and gas curtain cover board 3
?.
Wherein, front bumper assembly 100 includes front bumper covering 10 and collision prevention girders 20.
Further, as shown in Figs. 1-2, gas curtain 2 and initiating unit are mounted on the anticollision of front bumper covering 10 Yu automobile
Between beam 20.
Gas curtain 2 plays certain protective effect to collision prevention girders 20, has also buffered the impact to collision prevention girders 20.
Further, as shown in figure 4, having offered seam broken 101 on front bumper covering 10, gas curtain cover board 3 passes through buckle
31 have been connected in seam broken 101, and gas curtain 2 is unfolded Shi Congqi seam broken 101 and stretches out.
Specifically, playing the opening that seam broken 101 is the thin-and-long extended along the left and right directions of vehicle body, the shape of gas curtain cover board 3
It is just matched with seam broken 101 is played.After gas curtain cover board 3 has been connected to seam broken 101, gas curtain cover board 3 and 10 shape of front bumper covering
At a complete appearance and modeling, the aesthetics of automobile is not influenced.
Optionally, gas curtain cover board 3 can also be integrally formed with front bumper covering 10, and gas curtain cover board 3 and front bumper cover
A circle reduction slot or weakened line are formed between skin 10, when gas curtain 2, which detonates, to be unfolded, gas curtain cover board 3 is along reduction thread breakage and preceding guarantor
Dangerous thick stick covering 10 separates.Reduction slot or weakened line can not be a closed circle, it can be half-turn, gas curtain cover board 3 and preceding guarantor
It can be partially separated between dangerous thick stick covering 10, part still connects, and prevents gas curtain cover board 3 from flying out, causes secondary injury to pedestrian.
Preferably, gas curtain cover board 3 and front bumper covering 10 are made of plastics,
Further, as shown in figure 5, crash sensor 1 is mounted on the front bumper assembly 100 of automobile.
Further, active device for protecting legs of passersby as shown in Figure 5 further includes harness 4, before harness 4 is mounted on automobile
On bumper assembly 100, for transmitting acceleration signal and time break.
Specifically, harness 4 connects crash sensor 1 and control module, it is also connected with control module and initiating unit, harness 4
Acceleration signal is passed into control module from crash sensor 1, moreover it is possible to which time break is passed into detonation list from control module
Member.
In the present embodiment, initiating unit becomes one with gas curtain 2, be mounted on collision prevention girders 20 and front bumper covering 10 it
Between.
Crash sensor 1 can use radar or infrared ray to monitor the acceleration of pedestrian.
Further, control module integrates in finished vehicle electronic control unit.
In the present embodiment, when pedestrian impact accident occurs, the acceleration that harness 4 is detected crash sensor 1 is believed
It number is transferred to control module, control module issues time break by processing, is transferred to initiating unit by harness 4, gas curtain 2 is fast
Speed detonation inflation, the characteristic curve along front bumper covering 10 are unfolded forward, absorb collision energy, protection pedestrian shank safety.This
When gas curtain cover board 3 ejected by gas curtain 2, but do not damage the other parts of front bumper assembly 100, it is whole that no replacement is required when after-sales service
A front bumper assembly 100, only needs to change gas curtain 2 and gas curtain cover board 3.Due to eliminating conventional use of energy absorbent block, solve
The space between front bumper covering 10 and collision prevention girders 20 has been put, front overhang length can be shortened.
Above-described is only the principle of the present invention and preferred embodiment.It should be pointed out that for the common skill of this field
For art personnel, on the basis of the principle of the invention, several other modifications can also be made, also should be regarded as protection model of the invention
It encloses.
Claims (8)
1. a kind of active device for protecting legs of passersby, which is characterized in that including crash sensor, control module, initiating unit and
Gas curtain；
The crash sensor is used to detect the acceleration of Chinese herbaceous peony pedestrian, and the acceleration signal that will acquire passes to the control
Module；
The control module issues time break for judging whether after receiving the acceleration signal；
The initiating unit is for detonating and inflating into the gas curtain after receiving the time break；
It is unfolded after the gas curtain inflation towards Chinese herbaceous peony.
2. active device for protecting legs of passersby according to claim 1, which is characterized in that the active pedestrian lower leg protection
Device further includes gas curtain cover board, before the gas curtain cover board is mounted on the front bumper covering of automobile and is located at the gas curtain
Side, when inflatable curtain deployment, eject the gas curtain cover board from the front bumper covering.
3. active device for protecting legs of passersby according to claim 2, which is characterized in that the gas curtain and the detonation are single
Member is mounted between the front bumper covering and the collision prevention girders of automobile.
4. active device for protecting legs of passersby according to claim 2, which is characterized in that opened on the front bumper covering
Equipped with a seam broken is played, the gas curtain cover board is connected by a snap in described seam broken, the seam broken from described the when inflatable curtain deployment
It stretches out.
5. active device for protecting legs of passersby according to claim 2, which is characterized in that the gas curtain cover board and it is described before
Abdeckung Stossfaenger is made of plastics.
6. active device for protecting legs of passersby according to claim 1, which is characterized in that the crash sensor is mounted on
On the front bumper assembly of automobile.
7. active device for protecting legs of passersby according to claim 1, which is characterized in that the active pedestrian lower leg protection
Device further includes harness, and the harness is mounted on the front bumper assembly of automobile, for transmitting the acceleration signal and institute
State time break.
8. active device for protecting legs of passersby according to claim 1, which is characterized in that the control module is integrated whole
In vehicle electronic control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910710951.0A CN110371075A (en) | 2019-08-02 | 2019-08-02 | Active device for protecting legs of passersby |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910710951.0A CN110371075A (en) | 2019-08-02 | 2019-08-02 | Active device for protecting legs of passersby |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110371075A true CN110371075A (en) | 2019-10-25 |
Family
ID=68257855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910710951.0A Pending CN110371075A (en) | 2019-08-02 | 2019-08-02 | Active device for protecting legs of passersby |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110371075A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1668496A (en) * | 2002-07-19 | 2005-09-14 | 高田-彼得里公开股份有限公司 | Device on motor vehicles to protect pedestrians and cyclists consists |
| CN101716922A (en) * | 2009-12-29 | 2010-06-02 | 浙江吉利汽车研究院有限公司 | Device for protecting pedestrians in vehicle |
| CN103129510A (en) * | 2013-02-27 | 2013-06-05 | 浙江吉利汽车研究院有限公司杭州分公司 | Protecting device for preventing pedestrian shank diving and method thereof |
| CN205131178U (en) * | 2015-11-18 | 2016-04-06 | 彭强 | GMT structure of protection pedestrian shank |
| CN105501171A (en) * | 2016-02-01 | 2016-04-20 | 金陵科技学院 | Device with dual airbags and dual bumpers for protecting pedestrains in front of car |
| CN208855579U (en) * | 2018-08-09 | 2019-05-14 | 吉利汽车研究院（宁波）有限公司 | Air bag device and automobile |
-
2019
- 2019-08-02 CN CN201910710951.0A patent/CN110371075A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1668496A (en) * | 2002-07-19 | 2005-09-14 | 高田-彼得里公开股份有限公司 | Device on motor vehicles to protect pedestrians and cyclists consists |
| CN101716922A (en) * | 2009-12-29 | 2010-06-02 | 浙江吉利汽车研究院有限公司 | Device for protecting pedestrians in vehicle |
| CN103129510A (en) * | 2013-02-27 | 2013-06-05 | 浙江吉利汽车研究院有限公司杭州分公司 | Protecting device for preventing pedestrian shank diving and method thereof |
| CN205131178U (en) * | 2015-11-18 | 2016-04-06 | 彭强 | GMT structure of protection pedestrian shank |
| CN105501171A (en) * | 2016-02-01 | 2016-04-20 | 金陵科技学院 | Device with dual airbags and dual bumpers for protecting pedestrains in front of car |
| CN208855579U (en) * | 2018-08-09 | 2019-05-14 | 吉利汽车研究院（宁波）有限公司 | Air bag device and automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191025 |