CN107284530A - Hood and its manufacture method, motor vehicles and pedestrian protecting method of testing - Google Patents
Hood and its manufacture method, motor vehicles and pedestrian protecting method of testing Download PDFInfo
- Publication number
- CN107284530A CN107284530A CN201610204343.9A CN201610204343A CN107284530A CN 107284530 A CN107284530 A CN 107284530A CN 201610204343 A CN201610204343 A CN 201610204343A CN 107284530 A CN107284530 A CN 107284530A
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- Prior art keywords
- hood
- block
- initial position
- hole
- pedestrian protecting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
- B62D25/10—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles
- B62D25/105—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles for motor cars
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Superstructure Of Vehicle (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The present invention provides the method for testing of a kind of hood and its manufacture method, the motor vehicles containing the hood and pedestrian protecting, including：Utilize the mould formation inner plate of engine hood of inner plate of engine hood, the mould of wherein described inner plate of engine hood includes the initial position hole and spare space hole of hood block, the initial position hole corresponds at the white body rigid support of the block, and the spare space hole corresponds at the flexible material support of the block.The present invention can be on the basis of the security of pedestrian protecting is not sacrificed, to reach hood to balance maximum between overbump performance and pedestrian protecting performance using more economical mode.
Description
Technical field
The present invention relates to automobile manufacturing field, more particularly to a kind of hood and its manufacture method, the motor vehicles containing the hood and pedestrian protecting method of testing.
Background technology
Head injury criteria (Head Injury Criterion, HIC the important indicator of pedestrian injuries) is evaluated when being vehicle with pedestrian impact, when the head of the pedestrian flown up by collision is bumped against on hood, the relevant design of hood has very important influence to HIC value.
When due to user, the hood having turned on is closed, need to carry hood to certain altitude and then discharge hood and freely fallen by hood, so that hood has certain kinetic energy to overcome the coupling mechanism force of bonnet louver to allow hood to engage with bonnet louver closely, but because the hood of free-falling has certain inertia, accordingly even when when bonnet louver is engaged, hood still has the trend moved downward, and then strike the car light of hood bottom, the appearance parts such as bumper and cause open defect, here it is the overbump of hood.Generally the overbump performance of reply hood, is that block design is placed in hard parts so that the support of engine bonnet block is strong as far as possible, so causes hood to be unlikely to be flushed on the part of bottom due to the strong support of hard parts；But for the performance requirement of pedestrian protecting, then need the support of engine bonnet block weak as far as possible, therefore need to meet relative equilibrium relation between overbump and pedestrian protecting.
In the prior art, the placement location of hood block (stopper) has two kinds of selections：One kind is located in rigid white body (Body in White; BIW) in support; the performance for so resisting overbump can be preferable; even in result of calculation it is normal in the case of; due to the error of result of calculation, the physical test results on the HIC of pedestrian protecting still have potential underproof risk；It is another, it is located on such as elastic headlamp brackets or plastic stent flexible material, this ensure that the protection to pedestrian, but the performance of its overbump then lacks reliability.
Wherein, for the first selection; when nonconforming to the physical test results of pedestrian protecting; the stamping die of inner plate of engine hood need to be remodified to adjust the placement location of hood block; it will so expend for quite a long time and great number manufacturing expense, at the same time overbump sex expression certainly is forced to need to make a concession in pedestrian protecting this even more important security performance.For second of selection; due to the influence of calculated tolerances; therefore it is very possible still so to cause to place hood block using flexible material from the beginning and be unworthy very much to sacrifice the selection that overbump is showed by the five-star test of pedestrian protecting in the case where hood block is placed on into white body.In addition, in different countries and regions, the requirement for pedestrian protecting is not quite similar, the selection to hood block position would become hard to accomplish that the whole world is applicable.
The content of the invention
The present invention provides the method for testing of a kind of hood and its manufacture method, the motor vehicles containing the hood and pedestrian protecting, to solve that the technical problem of balance can not be obtained between overbump performance and pedestrian protecting in hood design process.
In order to solve the above technical problems, the present invention provides a kind of manufacture method of hood, including：
Utilize the mould formation inner plate of engine hood of inner plate of engine hood, the mould of wherein described inner plate of engine hood includes the initial position hole and spare space hole of hood block, the initial position hole corresponds at the white body rigid support of the block, and the spare space hole corresponds at the flexible material support of the block.
Further, the mould of the inner plate of engine hood is repaired a die according to pedestrian protecting test result, wherein：
When the block is located at the initial position hole, the pedestrian protecting test result passes through, then changes or fill out the envelope spare space hole；
When the block is located at the initial position hole, the pedestrian protecting test result not by when, then change or fill out the envelope initial position hole.
Further, the modification includes：
Abnormity is revised as in the initial position hole or the spare space hole on the mould.
Further, the abnormity is Long Circle.
Further, the initial position hole and the spare space hole are respectively one or more.
Further, the initial position hole and the spare space hole are corresponded.
The present invention also provides a kind of hood, including：
Inner plate of engine hood, the inner plate of engine hood includes the initial position hole and spare space hole of hood block, the initial position hole corresponds at the white body rigid support of the block, and the spare space hole corresponds at the flexible material support of the block.
Further, the initial position hole and the spare space hole are respectively one or more.
Further, the initial position hole and the spare space hole are corresponded.
Another further aspect, the present invention also provides a kind of motor vehicles, including the as above hood described in any one.
Another further aspect, the present invention also provides a kind of method of testing of pedestrian protecting, including：
As above hood described in any one is provided；
Hood block is placed in the initial position hole, using white body rigid support, pedestrian protecting test is carried out；
When pedestrian protecting test passes through, it is determined that the block is placed in into the initial position hole in vehicle volume production；When pedestrian protecting test not by when, the block is replaced by and is placed in the spare space hole, flexible material supporting way is adjusted, until pedestrian protecting test passes through, and determines that the block is placed in into the spare space hole in vehicle volume production.
Further, the flexible material supporting way includes the support of design flexibility headlamp brackets, bumper collapsible structural support or manufactures specific plastic stent support.
Further, when the block is located at the initial position hole, the pedestrian protecting test result passes through, the spare space hole changed or fill out on the mould for sealing the inner plate of engine hood；
When the block be located at the initial position hole when, the pedestrian protecting test result not by when, then the initial position hole changed or fill out on the mould for sealing the inner plate of engine hood.
It can be seen that; in a kind of hood and its method for testing of manufacture method, the motor vehicles containing the hood and pedestrian protecting that the present invention is provided; it can reach that hood shows overbump maximum balance between pedestrian protecting using more economical mode; on the basis of the security of pedestrian protecting is not sacrificed, to obtain the whole world hood applicatory that maximum reliability is showed with overbump.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, the required accompanying drawing used in embodiment or description of the prior art will be briefly described below, apparently, drawings in the following description are some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the inner plate of engine hood structural representation described in the embodiment of the present invention 1 and 2；
Fig. 2 is the schematic diagram that the block described in the embodiment of the present invention 1 and 2 is supported by white body；
Fig. 3 is the schematic diagram that the block described in the embodiment of the present invention 1 and 2 is supported by elastic headlamp brackets；
Fig. 4 is the schematic diagram that block described in the embodiment of the present invention 1 and 2 installs collapsible structural support additional by bumper；
Fig. 5 is the schematic diagram that the block described in the embodiment of the present invention 1 and 2 is supported by plastic stent；
Fig. 6 is the pedestrian protecting method of testing schematic flow sheet described in the embodiment of the present invention 4；
Fig. 7 is schematic diagram of the block described in the embodiment of the present invention 4 positioned at initial position hole；
Fig. 8 is schematic diagram of the block described in the embodiment of the present invention 4 positioned at spare space hole.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.
Embodiment 1：
Present invention firstly provides a kind of manufacture method of hood, including：
Utilize the mould formation inner plate of engine hood of inner plate of engine hood, wherein the mould of inner plate of engine hood includes the initial position hole and spare space hole of hood block, initial position hole corresponds at the white body rigid support of block, and spare space hole corresponds at the flexible material support of block.
As shown in figure 1, inner plate of engine hood 3 is made up of inner plate of engine hood mould, the initial position hole 1 and spare space hole 2 of hood block 4 form respectively.In Fig. 1, block 4 is respectively placed in initial position hole 1.Wherein when block 4 is located at initial position hole 1, it is supported by white body；When block 4 is located at spare space hole 2, it is supported by flexible material.
Wherein, Fig. 2 circled is block 4, is now placed at initial position hole 1, it is supported by white body 5.Fig. 3 and Fig. 4 then respectively illustrate the schematic diagram that block 4 is supported at spare space hole 2 by flexible material.Wherein, block 4 is supported by elastic headlamp brackets 6 in Fig. 3; pass through bumper in Fig. 4; such as front bumper installs the support limit stop 4 of collapsible structure 7 additional; block 4 is supported by the plastic stent 8 of particular design in Fig. 5; and then realized with minimum cost on the premise of pedestrian protecting is not influenceed, hood overbump performance is improved as far as possible.
The test result of pedestrian protecting is repaired a die with less financial cost to the mould of inner plate of engine hood it is alternatively possible to calculate group according to pedestrian protecting, wherein：
When block 4 is located at initial position hole 1, if pedestrian protecting test result passes through, envelope spare space hole 2 is changed or filled out；
When block 4 is located at initial position hole 1, if pedestrian protecting test result not by when, change or fill out envelope initial position hole 1.
Wherein, the initial position hole 1 or spare space hole 2 changed can be the profiled shapes that hole is revised as to such as Long Circle, and unwanted hole being modified or filled out the operation of envelope can prevent installer from malfunctioning in an assembling process.
Alternatively, initial position hole 1 and spare space hole 2 can be respectively one or more, and initial position hole 1 and spare space hole 2 can be corresponded, and can distinguish symmetrical by symmetry axis of car axis.Initial position hole 1 and spare space hole 2 can be set along the border of inner plate of engine hood 3, as shown in figure 1, the initial position hole 1 and its corresponding spare space hole 2 for placing block 4 can be set in the front side and the left and right sides of inner plate of engine hood.
Embodiment 2：
The embodiment of the present invention 2 provides a kind of hood, including：
Inner plate of engine hood 3, inner plate of engine hood 3 includes the initial position hole 1 and spare space hole 2 of hood block, and initial position hole 1 corresponds at the rigid support of white body 5 of block 4, and spare space hole 2 corresponds at the support of flexible material 6,7,8 of block 4.
Alternatively, initial position hole 1 and spare space hole 2 can be respectively one or more, and initial position hole 1 and spare space hole 2 can be corresponded.
Embodiment 3：
The embodiment of the present invention 3 provides a kind of motor vehicles, including such as the hood in the embodiment of the present invention 2.
Embodiment 4：
The embodiment of the present invention 4 provides a kind of method of testing of pedestrian protecting, as shown in fig. 6, including：
Step 601：As above hood described in any one is provided；
Step 602：Hood block is placed in the initial position hole, using white body rigid support, pedestrian protecting test is carried out；
Step 603：When pedestrian protecting test passes through, it is determined that the block is placed in into the initial position hole in vehicle volume production；When pedestrian protecting test not by when, the block is replaced by and is placed in the spare space hole, flexible material supporting way is adjusted, until pedestrian protecting test passes through, and determines that the block is placed in into the spare space hole in vehicle volume production.
Wherein, in step 601, hood described according to embodiments of the present invention 2 can be provided, it includes inner plate of engine hood 3, inner plate of engine hood 3 includes the initial position hole 1 and spare space hole 2 of hood block, initial position hole 1 corresponds at the support of white body 5 of block 4, and spare space hole 2 corresponds at the support of flexible material 6,7,8 of block 4.
In step 602, hood block 4 is placed at initial position hole 1 first, supported using white body 5, as shown in fig. 7, to carry out pedestrian protecting test.In this step; in trial assembly car (VRS) stage; because block 4 is supported by white body 5; therefore the performance of its overbump is necessarily fine; actually but now and need not consider that or pedestrian protecting test group is positive to the result of calculation of pedestrian protecting negative; the physical testing of pedestrian protecting will directly be carried out, it may include totally 5 stars are graded by ENCAP, CNCAP etc..
In step 603, the test result to pedestrian protecting specifically judge and analyze.Wherein, when pedestrian protecting test reaches 5 star (even if pedestrian protecting result of calculation and not up to 5 stars before this); in vehicle volume production, block 4 can be necessarily arranged in initial position hole 1, can not so be considered the negative results of pedestrian protecting calculating in design process and be directly reached the balance between overbump performance and pedestrian protecting.On this basis, mould punching group can be notified to remove unnecessary spare space hole 2 in diel, or be revised as the abnormity such as Long Circle, to avoid installer in installation process during volume production from performing mistake.
And if the HIC near block 4 is too high; when pedestrian protecting test is not up to 5 star; block 4 can be changed on spare space hole 2 as shown in Figure 8; and specific plastic stent 8 is supported or manufactures according to Fig. 3, Fig. 4 or Fig. 5 elastic headlamp brackets 6 of construction amendment, manufacture front bumper collapsible structure 7 simultaneously, untill pedestrian protecting test reaches 5 stars.Now, pedestrian protecting test will be showed as the factor for needing overriding concern, it is necessary to sacrifice certain overbump.After pedestrian protecting test result is up to standard, the supplier of head lamp can be notified to transform the design of headlamp brackets 6, front bumper collapsible structure 7 is installed additional and support or seek outsourcing company to produce plastic stent 8 to meet the demand of volume production.Similarly, now initial position hole 1 similarly can be changed or be removed in diel.
It can be seen that; in the method for testing of a kind of hood provided in an embodiment of the present invention and its manufacture method, the motor vehicles containing the hood and pedestrian protecting; it can reach that hood shows overbump maximum balance between pedestrian protecting using more economical mode; on the basis of the security of pedestrian protecting is not sacrificed, to obtain the whole world hood applicatory that maximum reliability is showed with overbump.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although the present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It can still modify to the technical scheme described in foregoing embodiments, or carry out equivalent substitution to which part technical characteristic；And these modifications or replacement, the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (13)
1. a kind of manufacture method of hood, it is characterised in that including：
Using the mould formation inner plate of engine hood of inner plate of engine hood, wherein in the engine
The mould of cover plate includes the initial position hole and spare space hole of hood block, described initial
Location hole corresponds at the white body rigid support of the block, and the spare space hole corresponds to
At the flexible material support of the block.
2. the manufacture method of hood according to claim 1, it is characterised in that institute
Stating method also includes：
The mould of the inner plate of engine hood is repaired a die according to pedestrian protecting test result, its
In,
When the block is located at the initial position hole, the pedestrian protecting test result is led to
Cross, then change or fill out the envelope spare space hole；
When the block is located at the initial position hole, the pedestrian protecting test result is not led to
It is out-of-date, then change or fill out the envelope initial position hole.
3. the manufacture method of hood according to claim 2, it is characterised in that institute
Stating modification includes：
Abnormity is revised as in the initial position hole or the spare space hole on the mould.
4. the manufacture method of hood according to claim 3, it is characterised in that：
The abnormity is Long Circle.
5. the manufacture method of hood according to claim 1, it is characterised in that：
The initial position hole and the spare space hole are respectively one or more.
6. the manufacture method of hood according to claim 1, it is characterised in that：
The initial position hole and the spare space hole are corresponded.
7. a kind of hood, it is characterised in that including：
Inner plate of engine hood, the inner plate of engine hood includes the initial position of hood block
Hole and spare space hole, the initial position hole correspond to the white body rigid support of the block
Place, the spare space hole corresponds at the flexible material support of the block.
8. hood according to claim 7, it is characterised in that：
The initial position hole and the spare space hole are respectively one or more.
9. hood according to claim 7, it is characterised in that：
The initial position hole and the spare space hole are corresponded.
10. a kind of motor vehicles, it is characterised in that including such as any one of claim 7-9
Described hood.
11. a kind of method of testing of pedestrian protecting, it is characterised in that including：
Hood as claimed in any one of claims 7-9 is provided；
Hood block is placed in the initial position hole, using white body rigid support, entered
Row pedestrian protecting is tested；
When pedestrian protecting test passes through, it is determined that the block is placed in vehicle volume production
The initial position hole；When the pedestrian protecting test not by when, the block is replaced by
The spare space hole is placed in, flexible material supporting way is adjusted, until the pedestrian protecting is surveyed
Pinged, and determine that the block is placed in into the spare space hole in vehicle volume production.
12. the method for testing of pedestrian protecting according to claim 11, it is characterised in that：
The flexible material supporting way, which includes the support of design flexibility headlamp brackets, bumper, to burst
Contracting formula structural support manufactures specific plastic stent support.
13. the method for testing of pedestrian protecting according to claim 11, it is characterised in that：
When the block is located at the initial position hole, the pedestrian protecting test result is led to
Cross, the spare space hole changed or fill out on the mould for sealing the inner plate of engine hood；
When the block is located at the initial position hole, the pedestrian protecting test result is not led to
The initial position hole that is out-of-date, then changing or fill out on the mould for sealing the inner plate of engine hood.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610204343.9A CN107284530B (en) | 2016-04-01 | 2016-04-01 | Engine hood, manufacturing method thereof, motor vehicle and pedestrian protection testing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610204343.9A CN107284530B (en) | 2016-04-01 | 2016-04-01 | Engine hood, manufacturing method thereof, motor vehicle and pedestrian protection testing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107284530A true CN107284530A (en) | 2017-10-24 |
| CN107284530B CN107284530B (en) | 2021-06-22 |
Family
ID=60087545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610204343.9A Active CN107284530B (en) | 2016-04-01 | 2016-04-01 | Engine hood, manufacturing method thereof, motor vehicle and pedestrian protection testing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107284530B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006062633A (en) * | 2004-07-27 | 2006-03-09 | Daiwa Kasei Ind Co Ltd | Cushion clip |
| CN201184385Y (en) * | 2008-04-15 | 2009-01-21 | 上海通用汽车有限公司 | Rigidity-changing buffer block |
| CN201228030Y (en) * | 2008-06-20 | 2009-04-29 | 上海通用汽车有限公司 | Adjustable buffer block |
| CN103354785A (en) * | 2011-02-07 | 2013-10-16 | 标致·雪铁龙汽车公司 | Vehicle rear luggage compartment load cover end stop support |
| CN203402272U (en) * | 2013-06-28 | 2014-01-22 | 北京汽车股份有限公司 | Trunk buffer block installation structure |
-
2016
- 2016-04-01 CN CN201610204343.9A patent/CN107284530B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006062633A (en) * | 2004-07-27 | 2006-03-09 | Daiwa Kasei Ind Co Ltd | Cushion clip |
| CN201184385Y (en) * | 2008-04-15 | 2009-01-21 | 上海通用汽车有限公司 | Rigidity-changing buffer block |
| CN201228030Y (en) * | 2008-06-20 | 2009-04-29 | 上海通用汽车有限公司 | Adjustable buffer block |
| CN103354785A (en) * | 2011-02-07 | 2013-10-16 | 标致·雪铁龙汽车公司 | Vehicle rear luggage compartment load cover end stop support |
| CN203402272U (en) * | 2013-06-28 | 2014-01-22 | 北京汽车股份有限公司 | Trunk buffer block installation structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107284530B (en) | 2021-06-22 |
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