CN104210553A - Partial structure of vehicle front part - Google Patents
Partial structure of vehicle front part Download PDFInfo
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- CN104210553A CN104210553A CN201410240986.XA CN201410240986A CN104210553A CN 104210553 A CN104210553 A CN 104210553A CN 201410240986 A CN201410240986 A CN 201410240986A CN 104210553 A CN104210553 A CN 104210553A
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- vehicle
- rigid body
- impact absorbing
- impact
- body unit
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Abstract
Disclosed is a partial structure of a vehicle front part. The structure comprises a vehicle body forming piece, a rigid body unit and an impact absorption bracket. When the front side of a vehicle is collided, the vehicle body forming piece is applicable to deform in a backward direction opposite to a vehicle cabin, the rigid body unit is arranged at the front of the vehicle cabin and applicable to move backwards relative to the vehicle cabin with the deformation of the vehicle body forming piece, and the impact absorption bracket is arranged behind the rigid body unit in the forward direction of the vehicle and applicable to deform by receiving the rigid body unit moving backwards.
Description
Technical field
The present invention relates to a kind of when vehicle front side collides for reducing to be applied to the front part of vehicle part-structure of the crash acceleration of passenger.
Background technology
In order to reduce the impact being applied to passenger when vehicle generation front impact, current known a kind of technology by allowing frame distortion to absorb collision energy.Particularly, collision energy is changed into for making the load of frame distortion and changing into the displacement of vehicle frame.Therefore, while frame distortion, decrease the impact being applied to passenger.
The part-structure of front part of vehicle disclosed in JP-A-2010-83257 has the subrack be arranged on below front side frame.These subracks are connected to the bracket from the front end of the front end of right front side frame and left front side frame to downward-extension.Meanwhile, subrack is connected to below front side frame by impact load Transmission Part, these impact load Transmission Parts from the part engaged by bracket of these subracks paired linea angulata ground upwards, extend back.In each front side frame, from its front end until the scope of the position of engagement impacts load Transmission Part is set to flexing district (buckling area), and be set to flexure district (flexing area) from the position scope backward of engagement impacts load Transmission Part.Flexing district flexing when front side frame receives the impact load of front impact of front side frame, and then, flexure district is dimensionally bent, thus absorbs collision energy.Particularly; in the part-structure of front part of vehicle disclosed in JP-A-2010-83257; in order in telegram bar (telegram pole) etc. and the region of vehicle between right-hand member (side member) and left-side member (namely; the middle body of vehicle) collide (so-called " bar collision ") when protect the object of engine, by impact load Transmission Part, collision energy is transferred to front side frame.
Incidentally, when vehicle generation front impact, car body is out of shape in the starting stage to absorb collision energy.And even if passenger is with belt, passenger also can move forward from seat, therefore, the collision energy being applied to passenger is relatively little.Along with car body continues distortion, absorbing the decreased number of these components that collision energy can be out of shape simultaneously.Therefore, the front part of vehicle becomes rigidity more, and the deflection of car body reduces.Therefore, in the later stage of front impact, the ratio being applied to the collision energy of passenger increases.
In order to absorb the collision energy of front impact, need the deforming stroke (deforming stroke) to collision end permission car body continuous modification from collision.According to the outside dimension of the type adjustment vehicle of vehicle.For standard automobile, easily at the deforming stroke that the front of car room arranges for absorbing front impact needed for collision energy, can guarantee that space, car room is enough simultaneously.On the other hand, for miniature car or lilliput car, because the outside dimension of regulation is less than the outside dimension of the regulation of standard automobile, so when guaranteeing that the scope of space, car room and standard automobile is equally large, be difficult to setting for absorbing the deforming stroke needed for collision energy.In this case, need effectively to absorb collision energy, even if deforming stroke is shorter.
Summary of the invention
Based on the above, even if the object of this invention is to provide a kind of front part of vehicle part-structure using short deforming stroke also can reduce the crash acceleration being applied to passenger in the late stage of front impact.
In order to realize above-mentioned target, according to the invention provides a kind of front part of vehicle part-structure, comprising: car body forms part, and when vehicle generation front impact, car body formation part is suitable for being out of shape on the direction of the relative retrogressing towards car room; Rigid body unit, rigid body unit is arranged on the front of car room, and the distortion that rigid body is suitable for being formed along with car body part retreats relatively relative to car room; And impact absorbing bracket, impact absorbing bracket is arranged on the rear of rigid body in the working direction of vehicle, and impact absorbing bracket is suitable for the rigid body unit by receiving retrogressing and is out of shape.
Vehicle according to the invention front part structure, when vehicle generation front impact, car body forms part distortion, and therefore, rigid body unit retreats relatively relative to car room.Then, the rigid body unit that impact absorbing receive carriers retreats, and impact absorbing bracket is also out of shape.Due to impact absorbing bracket deformation, thus collision energy can be absorbed by deflection.Because for absorbing the object of impacting, impact absorbing bracket is configured to form part with car body and is separated, so the hardness that collision energy to be absorbed arranges impact absorbing bracket can be corresponded to.
In the present invention, at least front impact to terminate the first half time period in, impact absorbing bracket can by receive retreat rigid body unit and be out of shape.
Vehicle according to the invention front part structure, wherein, impact absorbing bracket be arranged at least front impact from be out of shape by receiving the rigid body unit that retreats to the first half time period terminated, thus more collision energy can be absorbed within the first half time period that car body is out of shape because of front impact.Therefore, continue distortion at car body and start in later half time period of exerting one's influence to passenger, the amount of collision energy to be absorbed reduces, and alleviates the load on passenger.
In the present invention, it can be the side member arranged along the working direction of vehicle that car body forms part, this side member can be provided with the collet (mount) for supporting motive force device (power plant), rigid body unit can be arranged in above side member and in the front of collet, and impact absorbing bracket can be arranged between rigid body unit and collet.
Vehicle according to the invention front part structure, wherein, car body forms the side member that part is the collet be provided with for supporting motive force device, and impact absorbing bracket arrangement is between rigid body unit and collet, in the front situation of rigid body cell layout above side member and at collet, impact absorbing bracket can be supported rigidly and be out of shape due to the rigid body unit retreated to make impact absorbing bracket.And the load being transferred to impact absorbing bracket can be transferred to side member via collet, therefore, impact absorbing bracket can be made to absorb larger collision energy.
In the present invention, collet can comprise its central axis and arranges along the horizontal direction of vehicle and be fixed to the outer tube of side member, and impact absorbing bracket can be fixed to this outer tube.
Vehicle according to the invention front part structure, wherein, collet comprises the outer tube that its central axis is arranged along the horizontal direction of vehicle, and impact absorbing bracket is fixed to this outer tube, the input direction being transferred to the load of side member via collet from impact absorbing bracket easily can be set to the direction previously determined.
In the present invention, impact absorbing bracket can be arranged in the position higher than the central axis of outer tube.
Vehicle according to the invention front part structure, wherein, impact load, in the position higher than the central axis of outer tube, easily can be transferred to side member from the rigid body unit be arranged in above side member via impact absorbing bracket by impact absorbing bracket arrangement.And, when being parallel to side member at rigid body unit and retreating along side member, because impact absorbing bracket is arranged, so can arrange larger deforming stroke along the outer tube of collet.
Accompanying drawing explanation
Fig. 1 shows the transparent view of the vehicle of the front part of vehicle part-structure be provided with according to first embodiment of the invention.
Fig. 2 is the transparent view of front part of vehicle part-structure in Fig. 1.
Fig. 3 is the planar view of front part of vehicle part-structure Fig. 2 when watching from top.
Fig. 4 is the lateral plan of front part of vehicle part-structure from Fig. 2 during the viewing of vehicle centre.
Fig. 5 is the section drawing of front part of vehicle part-structure in the Fig. 4 intercepted along the line of centers of impact absorbing bracket.
Fig. 6 shows the diagram of front part of vehicle part-structure in Fig. 5 under the state deformed due to front impact.
Fig. 7 shows the diagram of the outer shape at the side member that front part of vehicle part-structure in Fig. 5 before and after front impact occurs.
Fig. 8 shows the relation chart be applied to when front part of vehicle part-structure generation front impact in Fig. 5 between the crash acceleration of car room and deflection.
Detailed description of the invention
Front part of vehicle part-structure 10 is according to the embodiment of the present invention described with reference to Fig. 1 to Fig. 8.Describe embodiments of the present invention time, for ease of understanding the present invention, relative to vehicle working direction relativism define "front", "rear", " right side " and " left side " direction.And the center side in a lateral direction of vehicle is defined as " inside ", and is defined as " outside " away from the both sides of vehicle.And, relative to gravity direction definition " top " and " below ".
Vehicle 1 shown in Fig. 1 has car body 2, is arranged on the front side of car room 20 in car body as the engine of engine installation and change-speed box (transmission, driving device).Car room 20 comprises: car body forms part, a pair right-hand member such as arranged along the working direction of vehicle and left-side member 21; Transverse member, transverse member is connection side component 21 in the lateral direction of the vehicle; Floor (floor panel), floor mainly forms the ground of car room 20; Outside plate 22, outside plate forms the outside of car body 2; Inner panel, inner panel forms the inside of car body 2; Reinforcement, reinforcement is inserted between outside plate and inner panel, and is included in the bonding part between side member and transverse member, etc.
As shown in Figure 1, the front part of side member 21 is arranged along the both sides of the engine chamber 2A comprising engine installation etc.The rear portion of side member 21 extends back from dash plate (dash panel) position from side member middle body below car room 20.Collet 23 for supporting motive force device is arranged on the upper wall 21A of side member 21.
Each in collet 23 all has: outer tube 231, and the central axis of outer tube is arranged along the horizontal direction of vehicle; Stem stem (stem) 232, stem stem is arranged along the central axis of this outer tube 231; And free body (insulator) 233, free body is arranged between outer tube 231 and stem stem 232 and vibrates and moment of torsion for absorbing.As shown in Figure 3, when directly watching from top, the inner end surface of outer tube 231 points to front.Outer tube 231 is fixed to side member 21 by bracket 234, and this bracket is engaged to the outer peripheral face of outer tube at front side place and rear side place.
And collet 23 has the bracket 235 being fixed to the periphery wall in the top of outer tube by welding.As shown in Figures 2 and 3, bracket 235 is connected to the part of the formation wheel proloculum 24 of car body 2 by connecting bracket 236.As shown in Figures 2 and 3, connect bracket 236 to extend across bracket 235 at vehicle interior.Pallet 51 for loading battery is attached to the distal portions connecting bracket 236 from top.As shown in Figure 4, this pallet 51 is kept by Support bracket 52, and Support bracket is attached to side member 21 at the region place at collet 23 rear.
In engine chamber 2A, except being wherein integrally assembled with the engine installation of engine and change-speed box entirety, additionally provide the accessory equipment being integrally assembled to engine installation, such as, for making the water pump of cooling water circulation, for making the oil pump of circulation of the lubricating oil, and provide the accessory equipment (such as, radiator, oil filter) relevant with engine installation or hydraulic pressure unit 31, battery etc. for the anti-locking brake system (ABS) that controls car brakeing.
The hydraulic pressure unit 31 of ABS is the one had in the rigid body unit of high rigidity formed by cutting or cast by aluminum alloy.As shown in Figures 2 to 4, this hydraulic pressure unit 31 is arranged in the top of the side member 21 at the left front place being positioned at vehicle 1, and is kept by the Support bracket 32 being fixed to side member 21.And as shown in Figure 2, hydraulic pressure unit 31 is positioned in the front of pillar tower (strut tower) 25.As shown in Figure 3, the control unit 33 of ABS is attached to the inner side of vehicle relative to hydraulic pressure unit 31.Control unit 33 is provided with the adaptor union 331 for connection cable on the face of its sensing outside vehicle, and wherein these cables are connected to the ECU of this vehicle 1 and the speed sensor of corresponding wheel.
As shown in Figures 1 to 5, impact absorbing bracket 40 is arranged between hydraulic pressure unit 31 and collet 23.This impact absorbing bracket 40 comprises: front butted part 41, and the aft end face that front butted part is adjacent to hydraulic pressure unit 31 is arranged; Flection part 42, flection part has the central axis of the aft end face perpendicular to hydraulic pressure unit 31; And rear support bracket 43, rear support bracket is for keeping front butted part 41 and flection part 42.As shown in Figures 2 and 3, rear support bracket 43 has the fixed lobe 431 extended back from flection part 42 and the radius arm 432 extended in relative side (that is, to vehicle interior) relative to fixed lobe 431.As shown in Figures 2 to 5, fixed lobe 431 is fixed on bracket 235 and the position being connected bracket 236 and being connected to each other, with bracket be connected bracket and use same screw fastening.As shown in Figures 2 and 3, the front edge abutting of radius arm 432 and the connection bracket 236 extended in vehicle 1 from bracket 235, thus the direction of butted part 41 and flection part 42 before limiting.Meanwhile, impact absorbing bracket 40 is arranged in the position higher than the central axis of the outer tube 231 of collet 23.More specifically, the central axis of the flection part 42 of impact absorbing bracket 40 is positioned at the position higher than the central axis of the outer tube 231 of collet 23.
The front part of vehicle part-structure 10 with structure described above comprises car body and forms part, rigid body unit and impact absorbing bracket.When front impact occurs vehicle 1, car body forms part and is out of shape on the direction relatively retreated towards car room 20.In the present embodiment, the side member 21 being positioned at the front of car room 20 corresponds to vehicle and forms part.Rigid body unit is disposed in the front of car room 20, and rigid body unit retreats relatively relative to car room 20 when vehicle forms part distortion.In the present embodiment, the hydraulic pressure unit 31 supported by side member 21 corresponds to rigid body unit.Impact absorbing bracket is arranged in the rear of rigid body unit in vehicle forward direction, and impact absorbing bracket is out of shape by receiving the rigid body unit of retrogressing.In the present embodiment, impact absorbing bracket 40 is positioned at the rear of the hydraulic pressure unit 31 as rigid body unit, and rear support bracket 43 is fixed to collet 23.Therefore, when front impact, hydraulic pressure unit 31 retreats, impact absorbing bracket 40 is out of shape by receiving hydraulic pressure unit 31.In brief, impact absorbing bracket 40 corresponds to the impact absorbing bracket of front part of vehicle part-structure 10.
In the front part of vehicle part-structure 10 of present embodiment, under the state that hydraulic pressure unit 31 and impact absorbing bracket 40 are arranged in as shown in Figure 5.When front impact occurs vehicle 1, the side member 21 forming the example of part as car body is out of shape on the direction relatively retreated towards car room 20, and therefore, the hydraulic pressure unit 31 as the example of rigid body unit also retreats relatively relative to car room 20.Impact absorbing bracket 40 receives the hydraulic pressure unit 31 retreated.When side member 21 is out of shape further, hydraulic pressure unit 31 retreats.Therefore, impact absorbing bracket 40 is pushed rearward dynamic while the load receiving hydraulic pressure unit 31, and bracket 235 be connected bracket 236 and be out of shape.Retreat until make after the lower edge of rear support bracket 43 contacts with the outer tube 231 of collet 23 at impact absorbing bracket 40, when impact absorbing bracket receives load further, flection part 42 is deformed into state as shown in Figure 6, thus absorbs collision energy.
Impact absorbing bracket 40 is positioned in the front of engine chamber 2A and at least colliding wall from wall, starts distortion to the first half time period terminated.Therefore, starting the starting stage passenger in car room 20 being applied to crash acceleration, impact absorbing bracket 40 absorbs collision energy.Therefore, as shown in Figure 7, the deforming stroke allowing side member 21 to be out of shape backward towards car room 20 when there is front impact diminishes, and the deflection of the dash plate 26 located on front side of car room also reduces.In the figure 7, solid line represents the side member 21 before colliding and dash plate 26, and chain line represent provide the situation of front part of vehicle part-structure in present embodiment issue side collision before death after side member 21 and dash plate 26.And dotted line represents when not providing front part of vehicle part-structure in present embodiment due to dash plate 26 that front impact deforms.
Fig. 8 shows the relation between crash acceleration and its displacement (that is, car body deflection) being applied to seating passengers position from front impact to terminal procedure.Deflection increase means that front impact is proceeding.Find crash acceleration to increase the amount of (PI) be impact absorbing bracket 40 from front impact to the first half time period enterolithic amount terminated, namely, absorb the amount of collision energy, and the crash acceleration being applied to passenger within the later half time period of front impact can reduce (P2).In addition, because in the end stage crash acceleration reduces, so the deflection of car body also reduces (P3).Because impact absorbing bracket 40 absorbs collision energy, so the deflection of side member 21 reduces.That is, the deforming stroke needing to absorb collision energy can be shortened.
Claims (5)
1. a front part of vehicle part-structure, is characterized in that, described front part of vehicle part comprises:
Car body forms part, and when vehicle generation front impact, described car body forms part and is suitable for being out of shape on the direction relatively retreated towards car room;
Rigid body unit, described rigid body unit is arranged on the front of described car room and the distortion being suitable for being formed along with described car body part retreats relatively relative to described car room; And
Impact absorbing bracket, described impact absorbing bracket is arranged on the rear of described rigid body unit and is suitable for by the described rigid body of reception retrogressing and is out of shape in the working direction of described vehicle.
2. front part of vehicle part-structure according to claim 1, is characterized in that:
At least within the first half time period from start to end of described front impact, described impact absorbing bracket is out of shape by receiving the described rigid body unit of retrogressing.
3. the front part of vehicle part-structure according to claims 1 or 2, is characterized in that:
It is the side member arranged along the working direction of described vehicle that described car body forms part;
Described side member is provided with the collet for supporting motive force device;
Described rigid body unit to be disposed in above described side member and in the front of described collet; And
Described impact absorbing bracket arrangement is between described rigid body unit and described collet.
4. front part of vehicle part-structure according to claim 3, is characterized in that:
Described collet comprises the outer tube that central axis is arranged along the horizontal direction of described vehicle, and described outer tube is fixed to described side member; And
Described impact absorbing bracket is fixed to described outer tube.
5. front part of vehicle part-structure according to claim 4, is characterised in that:
Described impact absorbing bracket is disposed in the position higher than the central axis of described outer tube.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-116197 | 2013-05-31 | ||
| JP2013116197A JP5673734B2 (en) | 2013-05-31 | 2013-05-31 | Vehicle front structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104210553A true CN104210553A (en) | 2014-12-17 |
| CN104210553B CN104210553B (en) | 2016-09-21 |
Family
ID=52092568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410240986.XA Expired - Fee Related CN104210553B (en) | 2013-05-31 | 2014-05-30 | Front part of vehicle part-structure |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5673734B2 (en) |
| CN (1) | CN104210553B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109130895A (en) * | 2017-06-16 | 2019-01-04 | 丰田自动车株式会社 | Fuel-cell vehicle |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004090828A (en) * | 2002-09-02 | 2004-03-25 | Honda Motor Co Ltd | Vehicle body front part structure |
| CN1626395A (en) * | 2003-10-28 | 2005-06-15 | 三菱扶桑卡客车株式会社 | Impact shock absorbing structure of a vehicle |
| CN1810562A (en) * | 2005-01-26 | 2006-08-02 | 本田技研工业株式会社 | Front vehicle body structure |
| CN101259850A (en) * | 2007-12-27 | 2008-09-10 | 奇瑞汽车股份有限公司 | Automobile front collision energy-absorbing device and assembling method thereof |
| JP2009196438A (en) * | 2008-02-20 | 2009-09-03 | Toyota Motor Corp | Car body structure of vehicle with frame |
| JP2010083257A (en) * | 2008-09-30 | 2010-04-15 | Mazda Motor Corp | Vehicle front body structure |
| JP2010188875A (en) * | 2009-02-18 | 2010-09-02 | Toyota Motor Corp | Collision load dispersing structure |
-
2013
- 2013-05-31 JP JP2013116197A patent/JP5673734B2/en not_active Expired - Fee Related
-
2014
- 2014-05-30 CN CN201410240986.XA patent/CN104210553B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004090828A (en) * | 2002-09-02 | 2004-03-25 | Honda Motor Co Ltd | Vehicle body front part structure |
| CN1626395A (en) * | 2003-10-28 | 2005-06-15 | 三菱扶桑卡客车株式会社 | Impact shock absorbing structure of a vehicle |
| CN1810562A (en) * | 2005-01-26 | 2006-08-02 | 本田技研工业株式会社 | Front vehicle body structure |
| CN101259850A (en) * | 2007-12-27 | 2008-09-10 | 奇瑞汽车股份有限公司 | Automobile front collision energy-absorbing device and assembling method thereof |
| JP2009196438A (en) * | 2008-02-20 | 2009-09-03 | Toyota Motor Corp | Car body structure of vehicle with frame |
| JP2010083257A (en) * | 2008-09-30 | 2010-04-15 | Mazda Motor Corp | Vehicle front body structure |
| JP2010188875A (en) * | 2009-02-18 | 2010-09-02 | Toyota Motor Corp | Collision load dispersing structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109130895A (en) * | 2017-06-16 | 2019-01-04 | 丰田自动车株式会社 | Fuel-cell vehicle |
| CN109130895B (en) * | 2017-06-16 | 2021-06-29 | 丰田自动车株式会社 | Fuel cell vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5673734B2 (en) | 2015-02-18 |
| JP2014234058A (en) | 2014-12-15 |
| CN104210553B (en) | 2016-09-21 |
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Address after: Tokyo Port Area, Japan Patentee after: Mitsubishi Jidosha Kogyo Kabushiki Kaisha Address before: Tokyo, Japan Patentee before: Mitsubishi Jidosha Kogyo Kabushiki Kaisha |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160921 |