CN101022987A - Vehicle front structure - Google Patents
Vehicle front structure Download PDFInfo
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- CN101022987A CN101022987A CN 200580031744 CN200580031744A CN101022987A CN 101022987 A CN101022987 A CN 101022987A CN 200580031744 CN200580031744 CN 200580031744 CN 200580031744 A CN200580031744 A CN 200580031744A CN 101022987 A CN101022987 A CN 101022987A
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Abstract
In a vehicle front structure (10), a cross member (52) which is disposed above paired side members (12) includes vehicle width-direction both end portions extending toward a rear side of the vehicle. The cross member (52) is connected with vehicle front-side portions of the paired suspension towers (42) at edges of the extending portions. Therefore, when a vehicle has a frontal collision at high speed, a collision load applied to the cross member (52) can be effectively received by the paired suspension towers (42), and can be transmitted to the paired suspensions. Thus, the cross member (52) can effectively receive the collision load, and can efficiently transmit the collision load to the rear side of the vehicle.
Description
Technical field
The present invention relates to the vehicle front body structure that its center member is arranged on paired curb girder top.
Background technology
A kind of vehicle front body structure is disclosed, paired of being fixed in the paired longeron in the support wherein, and another of support is fixed to another of paired longeron in pairs, and the collision input block is fixed between the paired support via pipe fitting.For example, Japanese Patent Application Publication No.JP-A-7-69241 discloses such vehicle front body structure.
Yet in this vehicle front body structure, collision input block and pipe fitting are simply supported via support by the upper surface of longeron.Thereby when the vehicle front bumped, big collision load especially was tending towards being input to from the collision input block lower end of support.Thereby, there is the collision input block can not receive collision load effectively, and can not effectively collision load be delivered to the possibility of the rear side of vehicle.
Summary of the invention
Embodiments of the invention seek to provide a kind of wherein crossbeam above paired curb girder can receive the vehicle front body structure of collision load effectively.
According to first aspect present invention, vehicle front body structure comprises: paired curb girder, and it is arranged on the left part and the office, right side of front part of vehicle; Paired suspension tower, it is arranged on left part and office, right side in the front part of vehicle, and at the paired suspension of vehicle front side upper support; And crossbeam, it is arranged on the top of paired curb girder, and comprise that being arranged on left and right sides on the vehicular transverse direction sentences the extension that extends towards the rear side of vehicle, suspension tower partly is connected with the vehicle front side of paired suspension tower in the edge of extendible portion in pairs.
In vehicle front body structure according to first embodiment, curb girder is arranged in the left part and right side part of front part of vehicle in pairs, and is arranged in the right side partial sum left part of front part of vehicle in the paired suspension tower of the paired suspension of vehicle front side upper support.
Crossbeam is arranged on paired curb girder top, and comprises that being arranged on the vehicular transverse direction left and right sides sentences the extension that extends towards the rear side of vehicle, and crossbeam partly is connected with the vehicle front side of paired suspension tower in the edge of extendible portion.
Thereby when the front of vehicle bumped, the collision load that is applied to crossbeam can partly be received by the vehicle front side of suspension tower.Further, the collision load that is applied to the vehicle front side part of suspension tower can be delivered to suspension, and can be with collision load distribution passing through suspension.Thereby crossbeam can receive collision load effectively, and effectively collision load is delivered to the rear side of vehicle.Thereby, can be effectively collision load be distributed by crossbeam, with reducing of the uptake that suppresses collision load, and the deformation stroke of vehicle is shortened.
Further, even when big another collision happens of the front of vehicle and car weight, crossbeam can receive collision load effectively, and can effectively collision load be delivered to the rear side of vehicle.Thereby the deformation stroke of vehicle can shorten.
In a first aspect of the present invention, vehicle front body structure can comprise the bumper/spoiler strength beam, and the bumper/spoiler strength beam is connected with the vehicle front side end of paired curb girder, and is arranged on the vehicle front side of crossbeam, and crossbeam is connected with paired curb girder.
Utilize this structure, the bumper/spoiler strength beam that is arranged on the vehicle front side of crossbeam is connected with the vehicle front side end of curb girder in pairs.Thereby when the front of vehicle bumped, collision load was delivered to curb girder (rear side of vehicle) from the bumper/spoiler strength beam.
Crossbeam is connected with paired curb girder.
Thereby when high-speed crash (heavily collision) took place in the front of vehicle, the collision load that is applied to crossbeam can be received effectively by paired suspension tower, and can be by crossbeam and the reception of the connecting bridge between the curb girder in pairs.Thereby crossbeam can more effectively receive collision load, and can more effectively collision load be delivered to the rear side of vehicle.
In the vehicle front body structure according to first aspect present invention, collision energy absorbing box is arranged on the vehicle front side end of paired curb girder in pairs; Compare with the part except collision energy absorbing box in each curb girder, each of collision energy absorbing box has low compression strength in the axial direction in pairs; And in pairs the vehicle rear-side end of collision energy absorbing box is arranged on and crossbeam and position consistent location on the longitudinal direction of car direction of the vehicle front side end of the position consistency of the vehicle front side end of the connecting bridge between the curb girder and crossbeam in pairs, perhaps in pairs the vehicle rear-side end of collision energy absorbing box is arranged on crossbeam and in pairs on the vehicle front side of the vehicle front side end of the connecting bridge between the curb girder and on the vehicle front side of the vehicle front side end of crossbeam.
Utilize this structure, take place in the front of vehicle under the situation of collision energy absorbing box distortion of low speed collision (flip and hit) and curb girder, collision load is not input to crossbeam.Thereby, can prevent crossbeam, crossbeam and connecting bridge and the infringement of suspension tower in pairs between the curb girder in pairs.In addition, can prevent to produce the power of infringement crossbeam institute collision object.
Also have, especially before and after the curb girder front side end of crossbeam is arranged on vehicle with collision energy absorbing box in pairs the position of side under the situation at consistent location place on the longitudinal direction of car direction, when high-speed crash takes place in the vehicle front, after collision energy absorbing box had been finished the absorption collision load, collision load was input to crossbeam immediately.Thereby the uptake that can more effectively suppress collision load reduces, and makes the deformation stroke of vehicle become shorter.
The aforementioned vehicle front structure may further include load transfer member, and load transfer member is connected the power unit and the crossbeam of front part of vehicle on the longitudinal direction of vehicle, makes load to transmit between crossbeam and power unit.
Utilize this structure, when high-speed crash took place in the vehicle front, collision load was delivered to power unit by the load transfer member that crossbeam is connected to power unit on the longitudinal direction of vehicle from crossbeam, and wherein power unit is arranged on front part of vehicle.Thereby after collision load began to import crossbeam, collision load was input to power unit immediately.Thereby, the reducing of uptake that can more effective inhibition collision load, and make the deformation stroke of vehicle shorter.
In the aforementioned vehicle front structure, the power unit in the front part of vehicle can be arranged on the vehicle rear-side of crossbeam.
Utilize this structure, when high-speed crash took place in the front of vehicle, collision load can be delivered to power unit from crossbeam.
The aforementioned vehicle front structure may further include output shaft, and it is arranged in the driving engine of power unit of front part of vehicle, and along the horizontal direction setting of vehicle, and the propulsive effort of output driving engine; And differentiator, be arranged in the power unit, and be arranged on the vehicle front side of output shaft, and will get power and be delivered to vehicle front-wheel from output shaft.
Utilize this structure, be arranged on output shaft in the driving engine of power unit of front part of vehicle along the vehicular transverse direction setting.The differentiator that is arranged in the power unit is delivered to vehicle front-wheel with the propulsive effort of driving engine output from output shaft.Differentiator is arranged on the vehicle front side of output shaft.Thereby, to compare with the situation that differentiator is arranged on the vehicle rear-side of output shaft, front-wheel is arranged to the front side near vehicle.Thereby, when high-speed crash takes place for the front of vehicle, can earlier collision load be distributed to front-wheel, more effectively suppressing the uptake of collision load, and make the deformation stroke of vehicle shorter.
The aforementioned vehicle front structure can also comprise subframe, and subframe has the rectangle frame shape in plan view, and the power unit in front part of vehicle is installed on the subframe.
Utilize this structure, when high-speed crash takes place for the front of vehicle, can effectively collision load be distributed to subframe,, and make that the vehicle travel deformation stroke is shorter with reducing of the uptake that more effectively suppresses collision load.
In the aforementioned vehicle front structure, the distance between the connecting bridge between crossbeam and the paired curb girder can be shorter than the distance between the connecting bridge between crossbeam and the paired suspension tower.
Utilize this structure, when high-speed crash takes place in the front of vehicle, with crossbeam and in pairs the distance between the connecting bridge between the curb girder than crossbeam and in pairs the situation of the distance between the connecting bridge between the suspension tower compare, crossbeam can more effective reception collision load, and can more effectively collision load be delivered to the rear side of vehicle.
In the aforementioned vehicle front structure, crossbeam can be in a tubular form.Utilize this structure, the rigidity of crossbeam uprises.
The aforementioned vehicle front structure may further include be formed in the crossbeam and opening to the admission port of the inboard of suspension tower; With air-filtering mechanism, it and is connected with crossbeam between the power unit and crossbeam that are arranged on front part of vehicle on the longitudinal direction of vehicle, and air-filtering mechanism is to cleaning by the crossbeam suction air from admission port.
Utilize this structure, crossbeam is as air inlet pipe, is cleaned by the air that crossbeam is drawn into airfilter from the admission port of crossbeam.
Each opening of the admission port of crossbeam is to the inboard of corresponding suspension tower.Thereby, not resembling the situation of the admission port opening of crossbeam to the engine room inboard, cold air can be drawn into air-filtering mechanism.
Further, air-filtering mechanism is set in place on power unit in front part of vehicle and the longitudinal direction of car direction between the crossbeam.Thereby when high-speed crash took place in the front of vehicle, collision load can be delivered to power unit by air-filtering mechanism from crossbeam.
Description of drawings
Fig. 1 illustrates when the position in the preceding left side of vehicle is observed diagonally the schematic isometric of the vehicle front body structure of the first embodiment of the present invention;
Fig. 2 illustrates when observing from the top of vehicle, the plan view of the vehicle front body structure of first embodiment of the invention;
Fig. 3 is when the leftward position of vehicle is observed, the lateral plan of the vehicle front body structure of first embodiment of the invention;
Fig. 4 is illustrated in according in each of the vehicle front body structure of first embodiment of the invention and conventional truck front structure the relation between the deformation stroke of vehicle and the uptake of collision load;
Fig. 5 be illustrate when when the preceding leftward position of vehicle is observed diagonally according to the signal three-dimensional view of the vehicle front body structure of second embodiment of the invention;
Fig. 6 be illustrate when when the leftward position of vehicle is observed according to the side elevation in partial section of the crossbeam the vehicle front body structure of second embodiment of the invention, airfilter and communicating pipe;
Fig. 7 be illustrate when when the preceding leftward position of vehicle is observed diagonally according to the signal three-dimensional view of the vehicle front body structure of third embodiment of the invention;
Fig. 8 be illustrate when when the preceding leftward position of vehicle is observed diagonally according to the signal three-dimensional view of the vehicle front body structure of fourth embodiment of the invention;
Fig. 9 be illustrate when when the preceding leftward position of vehicle is observed diagonally according to the signal three-dimensional view of the vehicle front body structure of the 5th embodiment.
The specific embodiment
First embodiment
Fig. 1 illustrates when the position in the preceding left side of vehicle is observed diagonally the schematic isometric of the vehicle front body structure 10 of first embodiment of the invention.Further, Fig. 2 illustrates when observing from the top of vehicle, the plan view of the vehicle front body structure 10 of first embodiment of the invention.Fig. 3 is when the leftward position of vehicle is observed, the lateral plan of the vehicle front body structure 10 of first embodiment of the invention.In the accompanying drawings, arrow FR represents the anterior locations of vehicle, and arrow LH represents the position of vehicle left side, and arrow UP represents the position of the top of vehicle.
The vehicle front body structure 10 of first embodiment of the invention comprises the paired all side beam 12 with long rectangular tubular as curb girder.All side beam 12 is arranged on the office, partial sum left side, right side of front part of vehicle along the longitudinal direction of vehicle in pairs.Part of horizontal setting beyond the vehicle rear-side part of each all side beam 12, and the vehicle rear-side of each all side beam 12 part is downward-sloping towards the rear side of vehicle.K/UP part 14 is provided with the vehicle rear-side end of each all side beam 12.Each K/UP part 14 connects (fixing) to corresponding central curb girder 16.Each paired central curb girder 16 has long plate shape and has the U-shaped cross section.Paired central curb girder 16 is horizontally set on the bottom, right side and the left bottom place of the longitudinal direction of car direction centre portion of vehicle along the longitudinal direction of vehicle.
Collision energy absorbing box (crash box) 18 is arranged on the office, vehicle front side end of each all side beam 12.Compare with the part except collision energy absorbing box 18 in all side beam 12, each collision energy absorbing box 18 has low compression strength in the axial direction.
The vehicle front side end (that is, collision energy absorbing box 18) of all side beam 12 is connected with the front bumper strength beam 20 with long rectangular tubular that is used as the bumper/spoiler strength beam in pairs.Front bumper strength beam 20 is horizontally set in the front end of vehicle along the Width of vehicle.
Be arranged on the below of paired all side beam 12 as the fore sub frame 22 of subframe.Fore sub frame 22 has the paired secondary curb girder 24 of long rectangular tubular.Paired secondary curb girder 24 approximate horizontal on the longitudinal direction of vehicle is arranged on the office, partial sum left side, right side of front part of vehicle.The vehicle rear-side end of each secondary curb girder 24 is connected with the K/UP part 14 of corresponding all side beam 12.One of them secondary crossbeam 26 with long rectangular tubular connects into the vehicle front side end to secondary curb girder 24, and other secondary crossbeam 26 connects into the curb girder rear side end to secondary curb girder 24.Each secondary crossbeam 26 is horizontally set on the Width of curb girder.Thereby fore sub frame 22 has essentially rectangular vehicle frame shape in plan view.The vehicle front side end of fore sub frame 22 (the secondary crossbeam 26 on the vehicle front side) is arranged on the vehicle rear-side of the vehicle rear-side end of each collision energy absorbing box 18.In addition, each vehicle-width direction end parts of the secondary crossbeam 26 of the side on the vehicle front side via the part place of corresponding upper support part 30 on the vehicle rear-side of collision energy absorbing box 18 on being arranged on the corresponding lower support part 28 on secondary crossbeam 26 sides and being arranged on all side beam 12 sides and (quilt) accordingly all side beam 12 be connected (support).
Have going up in pairs of rectangular tubular and keep off the top that beam 32 is arranged on paired all side beam 12.Go up in pairs and keep off beam 32 is horizontally set on front part of vehicle along the longitudinal direction of vehicle office, partial sum left side, right side.Go up the paired front standing pillar (not shown) one of retaining beam 32 and vehicle in pairs.
The vehicle rear-side that coaming plate (cowl) 34 connects into last retaining beam 32.Coaming plate 34 is tabular, and has the U-shaped cross section.The lower end of coaming plate 34 be tabular dividing plate 36 and be connected.Dividing plate 36 is arranged to extend to from the lower end of coaming plate 34 part between the vehicle rear-side part of all side beam 12.Dividing plate 36 is as the dividing plate between the main cabin (compartment) of machinery space 38 and vehicle rear-side.
Each paired suspension tower 42 is arranged to be erected on the outside of overall width direction of corresponding all side beam 12.Each suspension tower 42 is connected with the corresponding overall width direction end parts of coaming plate 34, the side surface of corresponding upward retaining beam 32 and the side surface of corresponding all side beam 12.Each suspension tower 42 comprises upper wall and is crooked tabular sidewall, the feasible intensity that strengthens each suspension tower 42 especially.In each suspension tower 42, support suspension 44.The lower end of each suspension 44 is the disc wheel 48 of support vehicle front-wheel 46 flexibly, makes disc wheel 48 to move in vertical direction.
Each part place on the vehicle rear-side of the vehicle rear-side end of corresponding collision energy absorbing box 18 with support (vertical post) 50 of rectangular tubular is connected with the upper surface of corresponding all side beam 12.Each support 50 is erected on the corresponding all side beam 12.
Crossbeam 52 is arranged on the top of paired all side beam 12.Crossbeam 52 has long rectangular tubular and osed top cross section.Crossbeam 52 comprises along the horizontally disposed vehicle-width direction middle body of vehicle-width direction.Crossbeam 52 also comprises bending and the vehicle-width direction two end portions of extending towards vehicle rear-side.That is, crossbeam 52 is included in place, the both sides extendible portion of vehicle-width direction.Sweep in the vehicle-width direction two end portions of crossbeam 52 is fixed to the upper end of support 50.Thereby crossbeam 52 is connected with all side beam 12.In addition, the edges at two ends (edge of the extendible portion of crossbeam 52) of crossbeam 52 on vehicle-width direction locates to be fixed to the vehicle front side surface of suspension tower 42.The vehicle front side end of crossbeam 52 (the vehicle front side surface of overall width direction middle body) is arranged on the consistent location place on the longitudinal direction of car direction, position with the vehicle rear-side end of each collision energy absorbing box 18.Distance between the connecting bridge between crossbeam 52 and the double-type support 50 (connecting bridge between crossbeam 52 and the paired all side beam 12) is than crossbeam 52 and the distance between the suspension tower 42 is short in pairs.Thereby the shape that obtains by the connecting bridge between the connecting bridge between connection crossbeam 52 and the paired support 50 and crossbeam 52 and the paired suspension tower 42 is a trapezoidal shape, and wherein vehicle front-side edge is shorter than the edge of vehicle rear-side.
Power unit 54 (not shown in Fig. 1) is set in engine room 38.Power unit 54 is installed on the fore sub frame 22, and by its support.The vehicle front side end of fore sub frame 22 is arranged on the vehicle front side of the vehicle front side end of power unit 54.Power unit 54 is surrounded by paired all side beam 12, dividing plate 36 and crossbeam 52.Power unit 54 and crossbeam 52 on the longitudinal direction of car direction toward each other.Use the torque tube 56 as load transfer member (torque transfer member), the vehicle front side surface of power unit 54 is connected with the vehicle width middle body of crossbeam 52 on the longitudinal direction of vehicle.Bent axle 60 as output shaft is arranged in the driving engine 58 of power unit 54.Bent axle 60 is along the vehicle-width direction horizontally set, and the propulsive effort of output driving engine 58.
Thereby, be the engine behind front wheel f-w-d vehicle according to the vehicle of the embodiment of the invention.
Then, will the effect of present embodiment be described.In the vehicle front body structure 10 of therefore constructing, when the front of vehicle bumped, collision load was delivered to all side beam 12 (that is the rear side of vehicle) from front bumper strength beam 20.Thereby, when low speed collision (light collision) takes place in the front of vehicle, only collision energy absorbing box 18 distortion of each all side beam 12.Simultaneously, when high-speed crash (heavy collision) took place in the front of vehicle, except collision energy absorbing box 18, the part in each all side beam beyond the collision energy absorbing box 18 also was out of shape.
Crossbeam 52 is arranged on the vehicle rear-side of the top of paired all side beam 12 and front bumper strength beam 20.Crossbeam 52 comprises bending and the two end portions of the vehicle-width direction that extends towards the rear side of vehicle.That is, the both sides of the vehicle-width direction of crossbeam 52 comprise extendible portion.Thereby the edge of the extendible portion of crossbeam 52 is connected with the vehicle front side surface of paired suspension tower 42.
Thereby when high-speed crash took place in the front of vehicle, the collision load that is applied to crossbeam 52 can partly be received by the vehicle front side of paired suspension tower 42 (its intensity is strengthened especially).Further, the collision load that is applied to the vehicle front side part of paired suspension tower 42 can be delivered to paired suspension 44, and collision load can distribute by paired suspension 44.Thereby crossbeam 52 can receive collision load effectively, and can effectively collision load be delivered to the rear side of vehicle.
Further, all side beam 12 is connected with paired support 50 in pairs, and support 50 is connected with crossbeam 52 in pairs.Thereby crossbeam 52 is connected with paired all side beam 12.Thereby the collision load that is applied to crossbeam 52 can be received by paired support 50 (crossbeam 52 and the connecting bridge between its all side beam 12) in pairs, and can be distributed to paired all side beam 12.Thereby crossbeam 52 can more effectively receive collision load, and can more effective rear side that collision load is delivered to vehicle.
Further, crossbeam 52 is connected with paired all side beam 12 by paired support 50 in the curve office of the two end portions of the vehicle-width direction of crossbeam 52.That is, the vehicle-width direction edges at two ends position of crossbeam 52 (that is, being applied to the received position of collision load of crossbeam 52) is not connected with paired all side beam 12.On the contrary, the close collision load of crossbeam 52 position that is input to the position of crossbeam 52 is connected with paired all side beam 12.Thereby, can suppress crossbeam 52 when collision load is input to crossbeam 52 with respect to the displacement of paired all side beam 12 on vehicle-width direction.In addition, can suppress of the angle variation of the vehicle width two end portions of crossbeam 52 with respect to suspension tower 42.Thereby the collision load that is applied to crossbeam 52 can be received reliably by paired suspension tower 42.In addition, can reduce in rigidity that need to strengthen increasing crossbeam 52 itself and the coupling stiffness between crossbeam 52 and the suspension tower 42 at least one, with suppress crossbeam 52 with respect to suspension tower 42 at the vehicle-width direction top offset.
In addition, the distance between the connecting bridge is shorter than the distance between the connecting bridge between crossbeam 52 and the paired suspension tower 42 between crossbeam 52 and the paired support 50.Connecting bridge between crossbeam 52 and the paired suspension tower 42 is arranged on the outside of connecting bridge on vehicle-width direction between crossbeam 52 and the paired support 50.Thereby, with crossbeam 52 and in pairs the distance between the connecting bridge between the support 50 than crossbeam 52 and the situation that the distance between the connecting bridge between the suspension tower 42 is long in pairs compare, the collision load that is applied to crossbeam 52 can more effectively be received by paired suspension tower 42, and can more effectively collision load be delivered to the rear side of vehicle.
Further, as mentioned above, the curve office of crossbeam 52 in the vehicle-width direction two end portions of crossbeam 52 is connected with paired all side beam 12 by paired support 50.In addition, the connecting bridge between crossbeam 52 and the paired suspension tower 42 is arranged on the outside of connecting bridge on vehicle-width direction between crossbeam 52 and the paired support 50.Thereby, when front part of vehicle one side (right side or left side) is collided with objects at high speed, (for example can reduce crossbeam 52 in the collision side, the right side of vehicle) Bian Xing possibility, collision load can not be delivered to the possibility that the possibility of suspension tower 42 and collision load could not be delivered to and collide the suspension tower 42 that side opposite side (for example, the left side of vehicle) locates from crossbeam 52.In addition, crossbeam 52 can be delivered to double-type suspension tower 42 from the collision side with collision load.Thereby collision load can be received by paired suspension tower 42 effectively.
Thereby, collision energy absorbing box 18 finished absorb collision load after, the collision load that can distribute effectively is with the reducing of the uptake that suppresses collision load, and the deformation stroke of vehicle is shortened.
Further, the vehicle front side end of crossbeam 52 (the vehicle front side surface of vehicle-width direction middle body) is arranged on and paired consistent location place on the longitudinal direction of car direction, position of the vehicle rear-side end of collision energy absorbing box 18.Thereby after collision energy absorbing box 18 had been finished the absorption collision load, collision load was input to crossbeam 52 immediately.Further, crossbeam 52 and power unit 54 toward each other, and use torque tube 56 to be connected to each other on the longitudinal direction of vehicle on the longitudinal direction of vehicle.Thereby after collision load began to be input to crossbeam 52, collision load was input to power unit 54 immediately via torque tube 56.Thereby, collision energy absorbing box 18 finished absorb collision load after, can more effectively suppress the reducing of uptake of collision load, and make the deformation stroke of vehicle become shorter.
Also have, in power unit 54, differentiator 62 is arranged on the vehicle front side of bent axle 60 of driving engine 58.Thereby, to compare with the situation that differentiator 62 is arranged on the vehicle rear-side of bent axle 60, front-wheel 46 is arranged to the front side near vehicle.Thereby after collision energy absorbing box 18 had been finished the absorption collision load, collision load can be distributed on the front-wheel 46 earlier.Since the car body collision on the vehicle rear-side of front-wheel 46 and front-wheel 46, disc wheel 48 distortion, and collision load is absorbed thus.Thereby, can more effectively suppress reducing of collision load uptake, and make the deformation stroke of vehicle shorter.
Further, fore sub frame 22 has essentially rectangular vehicle frame shape in plan view.The vehicle front side end of fore sub frame 22 is arranged on the vehicle front side of vehicle front side end of power unit 54.Thereby, collision energy absorbing box 18 finished absorb collision load after, can effectively collision load be distributed on the fore sub frame 22 earlier, with reducing of the uptake that more effectively suppresses collision load, and make the deformation stroke of vehicle become shorter.
Thereby, even under the length of engine room 38 on the longitudinal direction of car direction is short situation (for example, being the situation of dilly at vehicle),, can suppress because the distortion in the main cabin 40 that the distortion of dividing plate 36 causes because the deformation stroke of vehicle shortens.Further, because collision load distributed effectively, can reduce to be input to the collision load of the K/UP part 14 of all side beam 12.Thereby, can eliminate and concentrate the needs of strengthening K/UP part 14.That is, can eliminate the needs of the quality that increases K/UP part 14.
Do not provide therein in the traditional vehicle front body structure on the vehicle rear-side that fore sub frame 22 and crossbeam 52 and differentiator 62 be arranged on bent axle 60, shown in the dotted line A of Fig. 4, produced the stroke that collision load wherein not have effective absorption having finished time period till beginning to be imported into power unit 54 to collision load after absorbing collision load from collision energy absorbing box 18.Thereby the absorption of collision load is reduced (with reference to the region R of Fig. 4).As a result, the deformation stroke of vehicle is elongated.
Simultaneously, in the vehicle front body structure 10 that according to the present invention is embodiment, shown in the solid line of Fig. 4, can prevent reducing in the uptake of having finished the time period collision load till beginning to be imported into power unit 54 to collision load after absorbing collision load from collision energy absorbing box 18.Thereby, compare the deformation stroke of the vehicle stroke S among Fig. 4 that can shorten with traditional vehicle front body structure.
As mentioned above, crossbeam 52 is arranged on the top of paired all side beam 12, and crossbeam 52 can receive collision load effectively, and can effectively collision load be delivered to the rear side of vehicle.Thereby, when the front of a vehicle when such as bigger another vehicle (as obstacle) of the car weight of sport utility vehicle (SUV) head-on crash taking place with, the curb girder that crossbeam 52 can suppress one of them vehicle is inserted into the phenomenon (so-called brill hits phenomenon) of other vehicle.Thereby, can be so that the deformation stroke of vehicle shortens, and suppress because the distortion in the main cabin 40 that the distortion of dividing plate 36 causes.
Further, as mentioned above, the vehicle front side end of crossbeam 52 is arranged on and paired consistent location place on the longitudinal direction of vehicle, position of the vehicle rear-side end of collision energy absorbing box 18.In addition, the vehicle front side end of each paired support 50 lower end is arranged on the vehicle rear-side of vehicle rear-side end of each paired collision energy absorbing box 18.Thereby, under the situation that only collision energy absorbing box 18 of all side beam 12 is out of shape when the vehicle front low speed collision has taken place, can prevent crossbeam 52, support 50 and the damage of suspension tower 42 in pairs in pairs.In addition, can prevent to damage the generation of the power of the object that crossbeam 52 collided.
In addition, because crossbeam 52 has rectangular tubular, the situation that has opening section with crossbeam 52 is compared, and can increase the rigidity of crossbeam 52.
Second embodiment
Fig. 5 illustrates when when the preceding leftward position of vehicle is observed diagonally the signal three-dimensional view of the vehicle front body structure 70 of second embodiment of the invention.
The structure of the structure of the vehicle front body structure 70 of the second embodiment of the present invention and the vehicle front body structure 10 of first embodiment is roughly the same.Yet vehicle front body structure 70 is different from vehicle front body structure 10 in the following areas.
In the vehicle front body structure 70 of second embodiment, crossbeam 52 is made by high-air-tightness material (such as extruded material).Admission port 72 is arranged on the place, two ends of crossbeam 52.Each admission port 72 opening is to the inside of corresponding suspension tower 42.
Power unit 54 (not shown in Fig. 5) and crossbeam 52 do not use the torque tube 56 that is used among first embodiment and are connected to each other.The housing of airfilter 74 is arranged between the vehicle-width direction middle body of the vehicle front side surface of power unit 54 and crossbeam 52.Airfilter 74 is the parallelepiped box shape, and constitutes load transfer member and filtering mechanism.As shown in FIG. 6, constitute the vehicle front side surface that is fixed to case of air cleaner 74 communicating pipe 76 of load transfer member and air-filtering mechanism.Communicating pipe 76 is connected with case of air cleaner 74.Be fixed on the vehicle-width direction central portion office of crossbeam 52 communicating pipe 76, and be connected communicating pipe 76 with crossbeam 52.Thereby case of air cleaner 74 was connected with crossbeam 52 with communicating pipe 76.Thereby, airfilter 74 and communicating pipe 76, making did not have leaving space at crossbeam 52 with between communicating pipe 76 and between case of air cleaner 74 and the power unit 54 between the vehicle-width direction middle body of vehicle front side surface that is arranged in power unit 54 on the longitudinal direction of car direction and crossbeam 52.
In front structure 70 according to the vehicle of first embodiment, case of air cleaner 74 and communicating pipe 76, making did not have leaving space at crossbeam 52 with between communicating pipe 76 and between case of air cleaner 74 and the power unit 54 between the vehicle-width direction middle body of vehicle front side surface that is arranged in power unit 54 on the longitudinal direction of vehicle and crossbeam 52.Thereby when high-speed crash took place in the front of vehicle, collision load can be from crossbeam 52 by case of air cleaner 74 and communicating pipe 76 being delivered to power unit 54.Thereby, case of air cleaner 74 with communicating pipes 76 role identical with the effect of torque tube 56 among aforementioned first embodiment.Thereby, the effect that obtains of the effect that obtains and first embodiment identical.
In addition, from admission port 72 by crossbeam 52 and communicating pipe 76 aspirated air fils 74 air be cleaned.Thereby, because crossbeam 52 can reduce the quantity of parts and the quantity of assembly as air intake chamber.Thereby, can cost-cutting, even and under the situation (in the situation of dilly) of engine room 38 compactnesses, all parts that need be arranged in the engine room 38 in engine room 38, easily arranged.That is, can improve storage area efficient when the engine room arrangement component.
Further, each opening of the admission port 72 of crossbeam 52 is to the inboard of corresponding suspension tower 42.Thereby, not resembling the situation of admission port opening to the inboard of engine room 38, cold air can be drawn in the airfilter 74, and can prevent that sealing enters case of air cleaner 74.
In the present embodiment, airfilter 74 contact power units 54.Yet airfilter 74 cannot contact the vehicle front side surface of power unit 54 on the longitudinal direction of vehicle.In this case, preferably, airfilter 74 should be on the longitudinal direction of car direction vehicle front side surface of the most close as far as possible power unit 54.
The 3rd embodiment
Fig. 7 illustrates when the preceding leftward position of vehicle is observed diagonally the signal three-dimensional view of the vehicle front body structure 80 of third embodiment of the invention.
Structure according to the structure of the vehicle front body structure 80 of the 3rd embodiment and first embodiment is roughly the same.Yet the vehicle front body structure 80 of the 3rd embodiment is different from the vehicle front body structure 10 according to first embodiment in the following areas.
In vehicle front body structure 80, do not provide the paired support 50 that is arranged among first embodiment according to the 3rd embodiment.Crossbeam 52 is connected with paired all side beam 12, and is arranged on the top of paired all side beam 12, makes to separate with paired all side beam 12.
In the 3rd embodiment, the effect and the effect that obtain among the effect that is obtained and effect and first embodiment are identical, except by crossbeam 52 is connected the effect and the effect of acquisition with all side beam 12 in pairs.
The 4th embodiment
Fig. 8 is the signal three-dimensional view that the vehicle front body structure 90 of the fourth embodiment of the invention when the preceding leftward position of vehicle is observed diagonally is shown.
Structure according to the structure of the vehicle front body structure 90 of the 4th embodiment and first embodiment is roughly the same.Yet, be different from vehicle front body structure 10 in the following areas according to first embodiment according to the vehicle front body structure 90 of the 4th embodiment.
In vehicle front body structure 90, do not provide the paired support 50 that is arranged among first embodiment, and crossbeam 52 is shifted downwards according to the 4th embodiment.The part place of each of sweep in the vehicle-width direction two end portions of crossbeam 52 on the vehicle rear-side of the vehicle rear-side end of each collision energy absorbing box 18 is fixed to the upper surface of corresponding all side beam 12.
In the 4th embodiment, obtainable effect is identical with effect and the effect that first embodiment obtains with effect.
The 5th embodiment
Fig. 9 is the signal three-dimensional view that the vehicle front body structure 100 of the fifth embodiment of the invention when the preceding leftward position of vehicle is observed diagonally is shown.
Structure according to the structure of the vehicle front body structure 90 of the 5th embodiment and first embodiment is roughly the same.Yet, be different from vehicle front body structure 10 in the following areas according to first embodiment according to the vehicle front body structure 90 of the 5th embodiment.
In vehicle front body structure 90, do not provide the paired support 50 that is arranged among first embodiment according to the 5th embodiment; The width of the vertical direction of crossbeam 52 is expanded up and down; And the part place of each of the sweep in the vehicle-width direction two end portions of crossbeam 52 on the vehicle rear-side of the vehicle rear-side end of each collision energy absorbing box 18 is fixed to the upper surface of corresponding all side beam 12, on the vehicle rear-side top of the vehicle rear-side end of each collision energy absorbing box 18.
In the 5th embodiment, obtainable effect is identical with effect and the effect that first embodiment obtains with effect.
Further, the vertical direction width of crossbeam 52 is expanded up and down.Thereby, when the front of a vehicle with such as bigger another vehicle (as obstacle) of the car weight of sport utility vehicle (SUV) time, the curb girder that crossbeam 52 can more effectively suppress one of them vehicle is inserted into the phenomenon (so-called brill hits phenomenon) of other vehicle.
In first embodiment and the 3rd embodiment to the five embodiment, use torque tube 56 that crossbeam 52 is connected with power unit 54.Yet crossbeam 52 can not be connected with power unit 54.In this case, preferably, the vehicle-width direction middle body of crossbeam 52 should contact the vehicle front side surface of power unit 54 on the longitudinal direction of car direction, perhaps the vehicle-width direction middle body of crossbeam 52 should contact the front side surface of the vehicle of power unit 54 as far as possible on the longitudinal direction of vehicle.
Also have, in first embodiment to the, five embodiment, the vehicle front side end of crossbeam 52 is arranged on the consistent location place on the longitudinal direction of vehicle, position with the vehicle rear-side end of each collision energy absorbing box 18.Yet the vehicle front side end of crossbeam 52 can be arranged on the vehicle rear-side of vehicle rear-side end of each collision energy absorbing box 18.In this case, preferably, the vehicle front side end of crossbeam 52 should be on the longitudinal direction of vehicle the vehicle rear-side end of as close as possible each collision energy absorbing box 18.
Claims (10)
1. vehicle front body structure comprises:
Paired curb girder, it is arranged on the left part and the office, right side of front part of vehicle;
Paired suspension tower, it is arranged on left part and office, right side in the described front part of vehicle, and at the paired suspension of vehicle front side upper support; With
Crossbeam, it is arranged on the top of described paired curb girder, and comprise that being arranged on left and right sides on the vehicular transverse direction sentences the extension that the rear side towards described vehicle extends, described crossbeam partly is connected with the vehicle front side of described paired suspension tower in the edge of described extendible portion.
2. vehicle front body structure according to claim 1, wherein, described vehicle front body structure comprises the bumper/spoiler strength beam, and described bumper/spoiler strength beam is connected with the vehicle front side end of described paired curb girder, and be arranged on the vehicle front side of described crossbeam, described crossbeam is connected with described paired curb girder.
3. vehicle front body structure according to claim 1 and 2, wherein, collision energy absorbing box is arranged on the vehicle front side end of described paired curb girder in pairs; Compare with the part except described collision energy absorbing box in each curb girder, each of described paired collision energy absorbing box has low compression strength in the axial direction; And the vehicle rear-side end of described paired collision energy absorbing box is arranged on and described crossbeam and described paired curb girder between connecting bridge the vehicle front side end position consistency and with consistent location place on the longitudinal direction of car direction, position of the vehicle front side end of described crossbeam, perhaps the described vehicle rear-side end of described paired collision energy absorbing box is arranged on the vehicle front side of described vehicle front side end of the described connecting bridge between described crossbeam and the described paired curb girder, and is arranged on the vehicle front side of described vehicle front side end of described crossbeam.
4. according to each described vehicle front body structure in the claim 1 to 3, further comprise load transfer member, described load transfer member connects power unit and the described crossbeam that is positioned at described front part of vehicle on the longitudinal direction of described vehicle, make load to transmit between described crossbeam and described power unit.
5. according to each described vehicle front body structure in the claim 1 to 4, wherein, be arranged on the vehicle rear-side of described crossbeam at the described power unit of described front part of vehicle.
6. according to each described vehicle front body structure in the claim 1 to 5, also comprise:
Output shaft, it is arranged in the driving engine of power unit of described front part of vehicle, and along the horizontal direction setting of described vehicle, and exports the propulsive effort of described driving engine; And
Differentiator is arranged in the described power unit, and is arranged on the vehicle front side of described output shaft, and described propulsive effort is delivered to described vehicle front-wheel from described output shaft.
7. according to each described vehicle front body structure in the claim 1 to 6, also comprise subframe, described subframe has the rectangle frame shape in plan view, and the described power unit in described front part of vehicle is installed on the described subframe.
8. according to each described vehicle front body structure in the claim 2 to 7, wherein, the distance between the connecting bridge between described crossbeam and the described paired curb girder is littler than the distance between the connecting bridge between described crossbeam and the described paired suspension tower.
9. according to the described vehicle front body structure of claim 1 to 8, wherein, described crossbeam in a tubular form.
10. vehicle front body structure according to claim 9 also comprises:
Admission port, described admission port is formed in the described crossbeam, and opening is to the inboard of described suspension tower; And
Air-filtering mechanism, it is between power unit that is arranged on described front part of vehicle on the longitudinal direction of described vehicle and described crossbeam, and be connected with described crossbeam, described air-filtering mechanism is to cleaning by described crossbeam suction air from described admission port.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP274166/2004 | 2004-09-21 | ||
| JP2004274166 | 2004-09-21 | ||
| JP179804/2005 | 2005-06-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101022987A true CN101022987A (en) | 2007-08-22 |
| CN100497069C CN100497069C (en) | 2009-06-10 |
Family
ID=38710368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005800317449A Expired - Fee Related CN100497069C (en) | 2004-09-21 | 2005-09-02 | Vehicle front structure |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN100497069C (en) |
| RU (1) | RU2392160C2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102438881A (en) * | 2009-03-25 | 2012-05-02 | 奈克斯特汽车制造公司 | Deformable cross-car beam for side impact protection |
| CN103889827A (en) * | 2011-10-27 | 2014-06-25 | 丰田自动车株式会社 | Vehicle front structure |
| CN103909973A (en) * | 2012-12-28 | 2014-07-09 | 马自达汽车株式会社 | Structure of front portion of vehicle body |
| CN104736419A (en) * | 2012-10-25 | 2015-06-24 | 丰田自动车株式会社 | Vehicle rear structure |
| CN104797489A (en) * | 2012-11-16 | 2015-07-22 | 日产自动车株式会社 | Structure for front part of vehicle |
| CN109311440A (en) * | 2016-06-17 | 2019-02-05 | 宝马股份公司 | Motor vehicle |
| CN109501702A (en) * | 2017-09-15 | 2019-03-22 | 丰田自动车株式会社 | Bumper reinforcement |
| CN113120089A (en) * | 2020-01-14 | 2021-07-16 | 丰田自动车株式会社 | Front structure of automobile body |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010023281A1 (en) * | 2010-06-10 | 2011-12-15 | Gm Global Technology Operations Llc (N.D.Ges.D. Staates Delaware) | Body structure with a disc cross member for a motor vehicle with a windshield |
-
2005
- 2005-09-02 CN CNB2005800317449A patent/CN100497069C/en not_active Expired - Fee Related
- 2005-09-02 RU RU2007110375/11A patent/RU2392160C2/en active
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102438881A (en) * | 2009-03-25 | 2012-05-02 | 奈克斯特汽车制造公司 | Deformable cross-car beam for side impact protection |
| CN103889827A (en) * | 2011-10-27 | 2014-06-25 | 丰田自动车株式会社 | Vehicle front structure |
| CN103889827B (en) * | 2011-10-27 | 2016-06-08 | 丰田自动车株式会社 | Vehicle front body structure |
| CN104736419A (en) * | 2012-10-25 | 2015-06-24 | 丰田自动车株式会社 | Vehicle rear structure |
| CN104797489B (en) * | 2012-11-16 | 2016-11-09 | 日产自动车株式会社 | Car body fore part arrangement |
| US9545951B2 (en) | 2012-11-16 | 2017-01-17 | Nissan Motor Co., Ltd. | Structure for front part of vehicle |
| CN104797489A (en) * | 2012-11-16 | 2015-07-22 | 日产自动车株式会社 | Structure for front part of vehicle |
| CN103909973B (en) * | 2012-12-28 | 2016-07-20 | 马自达汽车株式会社 | The car body fore part arrangement of vehicle |
| CN103909973A (en) * | 2012-12-28 | 2014-07-09 | 马自达汽车株式会社 | Structure of front portion of vehicle body |
| CN109311440A (en) * | 2016-06-17 | 2019-02-05 | 宝马股份公司 | Motor vehicle |
| CN109501702A (en) * | 2017-09-15 | 2019-03-22 | 丰田自动车株式会社 | Bumper reinforcement |
| CN113120089A (en) * | 2020-01-14 | 2021-07-16 | 丰田自动车株式会社 | Front structure of automobile body |
| US11548556B2 (en) | 2020-01-14 | 2023-01-10 | Toyota Jidosha Kabushiki Kaisha | Front end structure of vehicle body |
| CN113120089B (en) * | 2020-01-14 | 2023-05-12 | 丰田自动车株式会社 | Front structure of automobile body |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100497069C (en) | 2009-06-10 |
| RU2392160C2 (en) | 2010-06-20 |
| RU2007110375A (en) | 2008-11-10 |
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Granted publication date: 20090610 |