WO2015001973A1 - 車体前部構造 - Google Patents
車体前部構造 Download PDFInfo
- Publication number
- WO2015001973A1 WO2015001973A1 PCT/JP2014/066288 JP2014066288W WO2015001973A1 WO 2015001973 A1 WO2015001973 A1 WO 2015001973A1 JP 2014066288 W JP2014066288 W JP 2014066288W WO 2015001973 A1 WO2015001973 A1 WO 2015001973A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- vehicle body
- vehicle
- body front
- floor tunnel
- floor
- Prior art date
Links
Images
Classifications
-
- 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
- B62D25/20—Floors or bottom sub-units
- B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
- B62D25/2018—Floors or bottom sub-units in connection with other superstructure subunits the subunits being front structures
-
- 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
- B62D25/20—Floors or bottom sub-units
-
- 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
- B62D25/088—Details of structures as upper supports for springs or dampers
-
- 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
- B62D25/14—Dashboards as superstructure sub-units
-
- 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
- B62D25/20—Floors or bottom sub-units
- B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
- B62D25/2036—Floors or bottom sub-units in connection with other superstructure subunits the subunits being side panels, sills or pillars
-
- 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
- B62D25/20—Floors or bottom sub-units
- B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
- B62D25/2045—Floors or bottom sub-units in connection with other superstructure subunits the subunits being fire walls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D27/00—Connections between superstructure or understructure sub-units
- B62D27/02—Connections between superstructure or understructure sub-units rigid
Definitions
- the present invention relates to a vehicle body front structure.
- Patent Document 1 refers to a floor cross member set for the purpose of improving collision performance, particularly frontal collision performance.
- the dash panel and the floor coupling portion are configured to be covered from the vehicle interior side by the floor cross member, and the side sills are continuously connected.
- the structure around the dash panel to the floor tunnel is one of the important structural parts that respectively affect the collision, sound vibration, and steering stability performance.
- the coupling rigidity between the dash panel and the floor tunnel is important.
- the frequency range of 100 to 200 Hz such as sound vibration performance, particularly road noise and engine noise
- deformation that causes the tip of the floor tunnel to fall laterally hereinafter referred to as ladle deformation
- ladle deformation deformation that causes the tip of the floor tunnel to fall laterally
- Patent Document 1 the space between the side surface of the floor tunnel and the floor cross member is small, and a sufficient cross section for suppressing ladle deformation is not sufficiently secured. Therefore, the rigidity of the side surface portion of the floor tunnel that suppresses deformation of the shackle is not sufficient, and the skeleton structure of the floor cross member cannot disperse the force acting on the floor tunnel member at the time of shading deformation. As a result, in the structure of Patent Document 1, vehicle body deformation occurs and the vehicle interior noise level increases.
- the present invention provides a vehicle body front structure capable of improving the sound vibration performance by suppressing vehicle body deformation.
- a floor tunnel that projects into the vehicle interior is formed in the vehicle front-rear direction below the vehicle floor, and the front end of the floor tunnel that is the front of the floor tunnel from the vehicle outside to the front edge line portion.
- a first vehicle body front reinforcing member that covers the entire area from the upper end of the vehicle to the base portion of each floor tunnel member provided in the vehicle front-rear direction is provided.
- FIG. 1 is a perspective view showing the front and lower structures of the vehicle body front structure according to the present embodiment as viewed from the outside of the vehicle.
- FIG. 2 is a perspective view showing the structure of the vehicle interior of the vehicle body front part structure of the present embodiment.
- FIG. 3 is an enlarged perspective view of a first vehicle body front reinforcing member.
- FIG. 4 is an enlarged perspective view showing a part where the first vehicle body front reinforcing member is attached to the front end of the floor tunnel.
- FIG. 5 is an enlarged perspective view showing a part where each part of the first vehicle body front reinforcing member is attached to the front end of the floor tunnel.
- FIG. 6 is an enlarged perspective view of the second vehicle body front reinforcing member.
- FIG. 7 is a perspective view showing that the second vehicle body front reinforcing member is connected to the vehicle interior floor member provided in the room.
- FIG. 8 is an enlarged perspective view of the third vehicle body front reinforcing member.
- FIG. 9 is an enlarged perspective view of a fourth vehicle body front reinforcing member.
- FIG. 1 is a perspective view showing a front and lower structure of a vehicle body front structure viewed from the outside of the vehicle, as viewed from the front lower side of the vehicle. is there.
- FIG. 2 is a perspective view showing the structure of the vehicle interior of the vehicle body front part structure (perspective view when looking into the vehicle interior from the position on the side of the vehicle). 1 and 2, arrow FR indicates the front of the vehicle, arrow RR indicates the rear of the vehicle, arrow H indicates the vehicle height, and arrow W indicates the direction of the vehicle width.
- a floor tunnel 4 is formed under the floor 2 of the vehicle body 1 so as to protrude into the passenger compartment 3.
- the floor tunnel 4 is continuously formed in the center portion in the vehicle width direction W along the vehicle front-rear direction from the portion where the dash panel 5 and the floor panel 6 intersect to the vehicle rear RR.
- the vehicle body 1 is provided with four reinforcing members (first to fourth vehicle body front reinforcing members) for reinforcing the strength at the front end portion of the floor tunnel 4, and these four reinforcing members have a vehicle body front structure. Part of.
- the U-shaped member 8 which is a first vehicle body front reinforcing member constituting the vehicle body front structure, is located on the vehicle outer side with respect to the floor tunnel front end portion of the floor tunnel 4 in the vehicle forward FR direction. It is attached from.
- the U-shaped member 8 is attached so as to cover the leading edge portion 1a from the outside of the vehicle.
- the U-shaped member 8 covers the entire front end ridge line portion 1a from the end of the front end ridge line portion 1a on the vehicle upper end side to the base portion 7a of the pair of floor tunnel members 7 provided in the vehicle front-rear direction.
- a pair of floor tunnel members 7 connect the floor tunnel 4 and the floor panel 6.
- the overall shape of the U-shaped member 8 is an inverted U-shape that opens downward in the vehicle.
- the U-shaped member 8 includes a U-shaped portion 8a, a pair of extending portions 8b, It has a pair of floor tunnel member coupling
- the U-shaped portion 8a is formed in accordance with the U-shape of the floor tunnel 4, and the pair of extending portions 8b are paired from the tip of the U-shaped portion 8a, that is, the end of the U-shaped portion 8a on the vehicle upper end side. Extending to the floor tunnel member 7.
- a floor tunnel member coupling portion 8c is provided at the tip of each extending portion 8b.
- the U-shaped portion 8a, the pair of extending portions 8b, and the pair of floor tunnel member coupling portions 8c are integrally formed by press forming a steel plate, and the U-shaped member 8 is integrally formed.
- the connecting portion of the U-shaped member 8 to the vehicle body 1 is composed of three locations, an outer peripheral portion, an inner peripheral portion, and an end portion.
- the U-shaped member 8 is integrally formed with a flange portion 9 continuous over the U-shaped portion 8a, the pair of extending portions 8b, and the pair of floor tunnel member coupling portions 8c.
- the flange portion 9 corresponds to the outer peripheral portion of the joint portion of the U-shaped member 8 to the vehicle body 1.
- the outer peripheral portion of the U-shaped member 8 includes a portion where a dash panel 5, a floor tunnel tip panel 10, and a flange portion 9 are joined together, a front floor panel 11, and a flange.
- the part 9 is divided into two parts that overlap and combine.
- the U-shaped member 8 is integrally formed with a bent portion 13 having a shape along the tip side surface portion 12 of the floor tunnel 4.
- the bent portion 13 corresponds to the inner peripheral portion of the connecting portion of the U-shaped member 8 to the vehicle body 1.
- the bent portion 13 is spot-welded to the tip side surface portion 12 of the floor tunnel 4 described above.
- the U-shaped member 8 is integrally formed with a pair of floor tunnel member coupling portions 8c.
- the pair of floor tunnel member coupling portions 8c correspond to the ends of the coupling portions of the U-shaped member 8 to the vehicle body 1.
- a floor tunnel member coupling portion 8c is spot-welded and coupled to a base portion 7a that is a tip of the floor tunnel member 7.
- the floor tunnel member coupling portion 8 c is coupled so as to cover the base portion 7 a of the floor tunnel member 7.
- the U-shaped member 8 coupled to the vehicle body 1 in this manner covers the front edge line 1a in accordance with the shape of the floor tunnel tip, and the U-shaped member 8 is directly connected to the floor tunnel member 7. It has a structure.
- the pair of dash lower cross members 15 as the second vehicle body front reinforcing members are composed of a U-shaped member 8 and a pair of front side members provided in the vehicle front-rear direction, as shown in FIGS. 14 is connected to the bottom base 14a. Further, the pair of dash lower cross members 15 is also fixed to the dash panel 5.
- the dash lower cross member 15 has a flange portion 16 formed on the entire outer periphery thereof.
- the dash lower cross member 15 is formed by spot welding of the flange portion 16 so that the U-shaped member 8 and the front side member 14 are It is connected to the bottom root 14a and the dash panel 5. That is, the dash lower cross member 15 is coupled to the vehicle body 1 through the flange portion 16 of the dash lower cross member 15.
- One end portion 15a of the dash lower cross member 15 having a rectangular shape in plan view (the end portion of the flange portion 16 located on the side closer to the floor tunnel 4) is spotted on the extending portion 8b of the U-shaped member 8. Welded and joined. Further, the other end portion 15b of the dash lower cross member 15 (the end portion of the flange portion 16 located on the side far from the floor tunnel 4) is spot-welded to the base portion 14a of the front side member 14 and joined. As shown in FIGS. 6 and 7, the other end 15 b of the dash lower cross member 15 is also coupled to a vehicle interior floor top member 17 provided in alignment with the base portion 14 a of the front side member 14. And the part except the one end part 15a and the other end part 15b among the flange parts 16 of the dash lower cross member 15 is spot-welded to the dash panel 5 and connected.
- the pair of upper dash cross members 19, which are the third vehicle body front reinforcing members, are arranged near the bottom roots 14 a of the pair of front side members 14 and the pair of dash side panels 18. Concatenate continuously.
- the upper dash cross member 19 has a main body portion 20 having a substantially trapezoidal cross section and a flange portion 21 formed on the outer periphery of the main body portion 20.
- One end portion 19a (the end portion of the flange portion 21 located on the side closer to the floor tunnel 4) of the upper dash cross member 19 having a rectangular shape in plan view is in the vicinity of the lower end root portion 14a of the front side member 14.
- the dash panel 5 is spot welded and joined.
- the other end portion 19 b of the upper dash cross member 19 (the end portion of the flange portion 21 located on the side far from the floor tunnel 4) is spot-welded to the dash side panel 18.
- part except the one end part 19a and the other end part 19b among the flange parts 21 of the top dash cross member 19 is spot-welded to the wheel house panel 22, and is couple
- the upper dash cross member 19 may be provided outside the vehicle, and one end 19a of the upper dash cross member 19 may be coupled to the dash lower cross member 15.
- the pair of lower dash cross members 25, which are the fourth vehicle body front reinforcing members, are connected to the bottom end root portions 14 a of the pair of front side members 14 and the vehicle front end portions 23 a of the pair of side sills 23. Are connected continuously.
- the lower dash cross member 25 has a main body portion 26 that has a rectangular shape in a plan view, and a flange portion 27 formed on the outer periphery of the main body portion 26.
- One end portion 25a of the lower dash cross member 25 (the end portion of the flange portion 27 located on the side closer to the floor tunnel 4) is provided in alignment with the bottom end root portion 14a of the front side member 14. It is spot-welded to the front end portion 17a of the on-plane member 17 and connected. Further, the other end portion 25 b of the lower dash cross member 25 (the end portion of the flange portion 27 located on the side far from the floor tunnel 4) is spot-welded to the vehicle front end portion 23 a of the side sill 23. And the site
- the lower dash cross member 25 may be provided outside the vehicle, and one end 25a of the lower dash cross member 25 may be coupled to the dash lower cross member 15.
- the U-shaped member 8 is coupled to the floor tunnel member 7 so as to cover the entire front end portion of the floor tunnel on the vehicle outer side of the vehicle body front structure including the first to fourth vehicle body front reinforcing members, and the U-shaped member. 8 and a base portion 14 a of the front side member 14 and a dash lower cross member 15 is coupled. Therefore, the U-shaped member 8 is coupled to the skeleton member that is the floor tunnel member 7, and the dash lower cross member 15 is coupled to the skeleton member that is the front side member 14.
- the upper dash cross member 19 is coupled to the skeleton member that is the front side member 14 and to the dash side panel 18.
- the lower dash cross member 25 is coupled to the frame member which is the vehicle interior floor top member 17 and the side sill 23.
- the U-shaped member 8 that is the first vehicle body front reinforcing member directly covers the entire front end of the floor tunnel, so that the strength at the front end of the floor tunnel 4 is improved. Can be made. As a result, vehicle body deformation can be suppressed and sound vibration performance can be improved.
- the first vehicle body front reinforcing member increases the rigidity of the floor tunnel tip, so that shear and torsional stress due to ladle deformation at the floor tunnel tip are directly suppressed. be able to. As a result, vehicle body deformation is suppressed and sound vibration performance is improved.
- the U-shaped member 8 is coupled to the skeleton member which is the floor tunnel member 7, the floor tunnel member 7 can be used as a part of the skeleton structure, and the external force input to the vehicle body 1 is used as the floor tunnel member 7 It is possible to disperse stress. As a result, shear stress and torsional input, which causes lath deformation that causes the tip of the floor tunnel to fall laterally in the frequency range of 100 to 200 Hz, such as road noise and engine noise, is applied to the floor tunnel member 7 through the U-shaped member 8. As a result, it is possible to suppress ladle deformation occurring at the tip of the floor tunnel.
- the dash lower cross member 15 that is the second vehicle body front reinforcing member is coupled to the skeleton member that is the front side member 14, so that the front side member 14 is It can be used as a part of the skeleton structure, and the external force generated in the floor tunnel 4 can be stress-distributed to the front side member 14.
- the dash lower cross member 15 is coupled to the U-shaped member 8, the strength of the front end portion of the floor tunnel is improved by the dash lower cross member 15 and the U-shaped member 8.
- the dash lower cross member 15 is coupled to the lower dash cross member 25 via the vehicle interior floor surface member 17, the stress can be distributed to these members.
- the upper dash cross member 19 that is the third vehicle body front reinforcement member is connected to the vicinity of the bottom root 14a of the front side member 14, so that the front side The member 14 can be used as a part of the skeleton structure, and the external force input to the vehicle body can be stress-distributed to the front side member 14.
- the upper dash cross member 19 is connected to the dash side panel 18, the external force generated in the floor tunnel 4 can be distributed to the dash side panel 18.
- the lower dash cross member 25 which is the fourth vehicle body front reinforcement member, is coupled to the bottom base 14a of the front side member 14. Can be used as a part of the skeleton structure, and the external force generated in the floor tunnel 4 can be dispersed in the front side member 14. Further, since the lower dash cross member 25 is coupled to the side sill 23, the external force generated in the floor tunnel 4 can be dispersed to the side sill 23 via the lower dash cross member 25.
- the vehicle interior floor surface member 17 is made to be one of the skeleton structure.
- the external force generated in the floor tunnel 4 can be stress-distributed to the vehicle interior floor surface member 17.
- the external force input to the vehicle body 1 is dispersed throughout the skeletal structure constituting the vehicle body, and the external force input to a specific portion is not concentrated.
- the present invention can be used for a vehicle having a floor tunnel.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
2 床下
4 フロアトンネル
5 ダッシュパネル
6 フロアパネル
7 フロアトンネルメンバー
8 U字型メンバー(第1車体前部補強メンバー)
14 フロントサイドメンバー
15 ダッシュロアクロスメンバー(第2車体前部補強メンバー)
17 車室内床面上メンバー
18 ダッシュサイドパネル
19 上部ダッシュクロスメンバー(第3車体前部補強メンバー)
22 ホイールハウスパネル
23 サイドシル
25 下部ダッシュクロスメンバー(第4車体前部補強メンバー)
Claims (6)
- 車両の床下に車室内へ突出するフロアトンネルが車両前後方向に形成されており、
前記フロアトンネルの車両前方であるフロアトンネル先端部を、車両外側から先端稜線部に沿って車両上端から車両前後方向に設けられた各フロアトンネルメンバーの付け根部までの全体を覆う第1車体前部補強メンバーを有する
ことを特徴とする車体前部構造。 - 請求項1記載の車体前部構造であって、
前記第1車体前部補強メンバーは、前記フロアトンネルメンバーに結合されていること
を特徴とする車体前部構造。 - 請求項1または請求項2記載の車体前部構造であって、
前記第1車体前部補強メンバーと、車両前後方向に設けられた各フロントサイドメンバーの下端付け根部とを連結してダッシュパネルに固定される第2車体前部補強メンバーを有すること
を特徴とする車体前部構造。 - 請求項3に記載の車体前部構造であって、
前記各フロントサイドメンバーの下端付け根部近傍とダッシュサイドパネル部までを連続で連結する第3車体前部補強メンバーを有すること
を特徴とする車体前部構造。 - 請求項3または請求項4記載の車体前部構造であって、
前記各フロントサイドメンバーの下端付け根部とサイドシルの車両先端部までを連続で連結する第4車体前部補強メンバーを有すること
を特徴とする車体前部構造。 - 請求項3または請求項4記載の車体前部構造であって、
前記各フロントサイドメンバーの下端付け根部と一致して設けられる車室内床面上メンバーとサイドシルの車両先端部までを連続で連結する第4車体前部補強メンバーを有すること
を特徴とする車体前部構造。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201480048414.XA CN105517882B (zh) | 2013-07-02 | 2014-06-19 | 车体前部构造 |
BR112015032835-0A BR112015032835B1 (pt) | 2013-07-02 | 2014-06-19 | Estrutura da seção frontal de corpo de veículo |
JP2015525138A JP6041054B2 (ja) | 2013-07-02 | 2014-06-19 | 車体前部構造 |
MX2015017584A MX345882B (es) | 2013-07-02 | 2014-06-19 | Estructura de sección frontal de carrocería de vehículo. |
RU2016103130A RU2615237C1 (ru) | 2013-07-02 | 2014-06-19 | Структура передней секции кузова транспортного средства |
EP14818852.7A EP3018041B1 (en) | 2013-07-02 | 2014-06-19 | Vehicle body front section structure |
US14/902,474 US9643659B2 (en) | 2013-07-02 | 2014-06-19 | Vehicle body front section structure |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013138613 | 2013-07-02 | ||
JP2013-138613 | 2013-07-02 |
Publications (1)
Publication Number | Publication Date |
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WO2015001973A1 true WO2015001973A1 (ja) | 2015-01-08 |
Family
ID=52143551
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2014/066288 WO2015001973A1 (ja) | 2013-07-02 | 2014-06-19 | 車体前部構造 |
Country Status (9)
Country | Link |
---|---|
US (1) | US9643659B2 (ja) |
EP (1) | EP3018041B1 (ja) |
JP (1) | JP6041054B2 (ja) |
CN (1) | CN105517882B (ja) |
BR (1) | BR112015032835B1 (ja) |
MX (1) | MX345882B (ja) |
MY (1) | MY161701A (ja) |
RU (1) | RU2615237C1 (ja) |
WO (1) | WO2015001973A1 (ja) |
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CN105946981A (zh) * | 2016-06-14 | 2016-09-21 | 重庆长安汽车股份有限公司 | 一种贯通前壁板和前地板的加强结构 |
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CN105946981A (zh) * | 2016-06-14 | 2016-09-21 | 重庆长安汽车股份有限公司 | 一种贯通前壁板和前地板的加强结构 |
JP2019123343A (ja) * | 2018-01-16 | 2019-07-25 | マツダ株式会社 | 下部車体構造 |
CN108454705A (zh) * | 2018-03-26 | 2018-08-28 | 力帆实业(集团)股份有限公司 | 汽车前围板总成 |
JP2019217815A (ja) * | 2018-06-15 | 2019-12-26 | マツダ株式会社 | 下部車体構造 |
JP2020026231A (ja) * | 2018-08-13 | 2020-02-20 | マツダ株式会社 | 下部車体構造 |
Also Published As
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EP3018041A4 (en) | 2017-06-07 |
JPWO2015001973A1 (ja) | 2017-02-23 |
BR112015032835A2 (ja) | 2020-04-28 |
BR112015032835B1 (pt) | 2022-04-19 |
JP6041054B2 (ja) | 2016-12-07 |
CN105517882A (zh) | 2016-04-20 |
MX2015017584A (es) | 2016-04-07 |
MX345882B (es) | 2017-02-22 |
EP3018041A1 (en) | 2016-05-11 |
MY161701A (en) | 2017-05-15 |
CN105517882B (zh) | 2017-04-12 |
US20170001669A1 (en) | 2017-01-05 |
EP3018041B1 (en) | 2018-05-02 |
RU2615237C1 (ru) | 2017-04-04 |
US9643659B2 (en) | 2017-05-09 |
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