KR20130005378A - Structure of subframe for vehicle - Google Patents

Structure of subframe for vehicle Download PDF

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Publication number
KR20130005378A
KR20130005378A KR1020110066724A KR20110066724A KR20130005378A KR 20130005378 A KR20130005378 A KR 20130005378A KR 1020110066724 A KR1020110066724 A KR 1020110066724A KR 20110066724 A KR20110066724 A KR 20110066724A KR 20130005378 A KR20130005378 A KR 20130005378A
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KR
South Korea
Prior art keywords
subframe
panel
lower panel
reinforcing member
upper panel
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KR1020110066724A
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Korean (ko)
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KR101705146B1 (en
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김기창
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현대자동차주식회사
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Priority to KR1020110066724A priority Critical patent/KR101705146B1/en
Publication of KR20130005378A publication Critical patent/KR20130005378A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D21/00Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/10Understructures, i.e. chassis frame on which a vehicle body may be mounted in which the main member is plate-like
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D21/00Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/02Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D21/00Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/15Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
    • B62D21/152Front or rear frames
    • B62D21/155Sub-frames or underguards
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00Articles made by soldering, welding or cutting
    • B23K2101/006Vehicles

Abstract

PURPOSE: A subframe structure for a vehicle is provided to keeping noise and vibration transmission down caused by a resonance and to prevent the deformation of a subframe by increasing rigidity about the bending of the subframe. CONSTITUTION: A subframe structure for a vehicle comprises a lower panel(10), an upper panel(30), and a reinforcement member. The lower panel and upper panel whose boarder parts are combined form a space inside so that the reinforcement member is mountable. The reinforcement member is arranged between the lower panel and the upper panel along the length direction, and is mounted on so that a lower part is welded on the lower panel and an upper part is welded on the upper panel. [Reference numerals] (AA) Longitudinal direction; (BB) Transverse direction; (CC) Vertical direction

Description

차량용 서브프레임의 구조{Structure of subframe for vehicle}Structure of subframe for vehicle

본 발명은 차량용 서브프레임의 구조에 관한 것으로서, 더욱 상세하게는 종래의 경우 외부에 추가적으로 장착됐던 다이나믹 댐퍼를 대신하여 내부에 보강부재를 구비함으로서 소음 및 진동 전달을 억제할 수 있는 차량용 서브프레임의 구조에 관한 것이다.
The present invention relates to a structure of a vehicle subframe, and more particularly, to a structure of a vehicle subframe capable of suppressing noise and vibration transmission by providing a reinforcing member therein in place of a dynamic damper, which is additionally mounted outside. It is about.

최근의 승용차량들은 프레임바디를 대신하여 중량이 가볍고 생산성이 뛰어난 모노코크바디가 주로 사용된다. 모노코크바디는 별도의 프레임이 삭제된 구조로서 차체에 엔진을 포함한 파워트레인이 직접 장착된다. In recent years, passenger cars have a monocoque body which is light in weight and high in productivity instead of a frame body. The monocoque body is a structure in which a separate frame is removed, and a power train including an engine is directly mounted on the body.

따라서, 상기 모노코크바디는 차체 자체가 프레임 기능을 하여 서스펜션 및 섀시 부품들이 각각 장착되나, (엔진과 트랜스미션 및 디퍼렌셜기어가 통합적으로 결합되어 구성된) 파워트레인의 진동이 직접적으로 차체에 전달되는 것을 방지하며 차량 충돌시 충격을 분산하기 위하여 차량의 하부에 서브프레임(subframe)이 장착된다.Therefore, the monocoque body functions as a frame itself, and the suspension and chassis components are mounted, respectively, but the vibration of the power train (integrated with the engine, the transmission and the differential gear) is prevented from being transmitted directly to the vehicle body. Subframes are mounted on the lower part of the vehicle to disperse the impact when the vehicle crashes.

도 1a 에 도시된 바와 같이, 상기 서브프레임은 서스팬션 스트럿(strut) 및 너클 등과 같은 조향장치 및 현가장치 등이 연결될 수 있도록 차체 하부에 장착된다. As shown in FIG. 1A, the subframe is mounted under the vehicle body so that steering devices such as suspension struts and knuckles and suspension devices can be connected.

상기 서브프레임은 전방마운팅부와 후방마운팅부에서 마운팅부재들에 의해 차체와 연결되며, (차체를 기준으로) 전방측에 형성된 롤마운팅부에는 롤로드가 장착되어 파워트레인과 결합됨으로서 상기 파워트레인에서 발생하는 하중 이동 및 진동 감쇠를 엔진마운트 및 트랜스미션마운트와 분담한다. 따라서, 엔진에서 발생되는 진동 및 소음은 일부가 (서브프레임을 포함한) 전달계를 통하여 운전자에게 전달된다. The subframe is connected to the vehicle body by mounting members at the front mounting portion and the rear mounting portion, and the roll mounting portion formed at the front side (relative to the vehicle body) is mounted on the roll rod and coupled with the power train in the power train. Shares the resulting load movement and vibration damping with engine mounts and transmission mounts. Thus, some of the vibrations and noise generated by the engine are transmitted to the driver through a transmission system (including the subframe).

한편, 도 1b 에는 서브프레임의 사시도 및 분해사시도가 도시되어 있다. 상기 서브프레임은 전체적으로 "H"형상(또는 "I"형상)으로서 도그본(dog bone) 모양을 갖되 테두리부분이 상측으로 절곡된 로워패널과 테두리부분이 하측으로 절곡된 어퍼패널이 서로 접합되어 구성된다. 그리고, 차체에 결합될 수 있도록 전방 및 후방의 양측에는 전방마운팅부와 후방마운팅부가 각각 형성된다. 아울러, 전술한 바와 같이 롤로드가 장착될 수 있도록 소정의 크기로 롤마운트부가 전방에 구성되며 안쪽으로는 상기 롤로드가 안착되는 롤마운팅브라켓이 장착된다. 또한, 후방측으로 스테이가 추가되며 전방측으로 다이나믹댐퍼가 추가된다.
1B is a perspective view and an exploded perspective view of the subframe. The subframe has an "H" shape (or "I" shape) as a whole, and has a dog bone shape, and a lower panel where the edge is bent upward and an upper panel where the edge is bent downward is joined to each other. do. Then, the front mounting portion and the rear mounting portion are formed on both sides of the front and rear to be coupled to the vehicle body, respectively. In addition, as described above, the roll mounting portion is configured to a predetermined size so that the roll rod can be mounted, and a roll mounting bracket on which the roll rod is seated is mounted therein. In addition, the stay is added to the rear side and the dynamic damper is added to the front side.

엔진 성능의 향상에 따라서 전달계를 통하여 운전석으로 유입되는 진동 및 소음의 크기 또한 증가되므로, 주파수 공진을 회피하고자 종래에는 서브프레임에 다이나믹댐퍼가 일측에 추가되었으나, 이와 같이 추가장착되어 외부로 돌출되는 다이나믹댐퍼는 서브프레임의 중량을 증가시키며 서브프레임의 주변의 레이아웃 구성에 있어 주변 부품들과 간섭을 발생시킬 수 있는 문제점이 있었다.As the engine performance improves, the magnitude of vibration and noise flowing into the driver's seat through the transmission system is also increased. In order to avoid frequency resonance, a dynamic damper has been added to one side of the subframe in the related art. The damper increases the weight of the subframe and may cause interference with peripheral components in the layout configuration around the subframe.

따라서, 다이나믹댐버를 삭제하고 운전자가 민감하게 체감하는 100 내지 500Hz 영역 대(특히 130Hz 영역 대)의 주파수 소음을 더 효율적으로 억제하기 위한 차량용 서브프레임의 개발이 요구되었으며, 본 발명은 상기와 같은 요구에 부흥할 수 있는 차량용 서브프레임 구조를 제공하는 것에 주목적이 있다.
Accordingly, there has been a demand for the development of a vehicle subframe for more efficiently suppressing the frequency noise in the 100 to 500 Hz range (particularly in the 130 Hz range) in which the dynamic damper is eliminated and the driver feels sensitively. The main object is to provide a vehicle subframe structure that can be revived.

상기와 같은 목적을 달성하기 위한 본 발명은, 테두리부분이 상측으로 절곡된 로워패널과 테두리부분이 하측으로 절곡된 어퍼패널이 결합되어 내부에 일정공간이 형성된 차량용 서브프레임의 구조에 있어서, 상기 로워패널과 어퍼패널 사이에서는 하단이 로워패널과 접합되고 상단이 어퍼패널과 접합되는 보강부재가 장착되는 것을 특징으로 한다.In the present invention for achieving the above object, in the structure of a vehicle subframe in which a certain space is formed by combining a lower panel of which the edge is bent upward and the upper panel of the edge is bent downward, the lower Between the panel and the upper panel is characterized in that the lower end is bonded to the lower panel and the upper end is connected to the reinforcing member bonded to the upper panel.

상기 보강부재는 판(plate) 형상이되, 하부패널에서 수직으로 세워지며 상기 하부패널의 길이방향을 따라 부설된다.The reinforcing member has a plate shape, and is erected vertically on the lower panel and laid along the longitudinal direction of the lower panel.

다른 실시예로서, 상기 보강부재는 로워패널과 어퍼패널과 면접촉하여 접합되도록 절곡되어 "ㄷ" 자 형상을 이뤄진다. In another embodiment, the reinforcing member is bent to be bonded to the lower panel and the upper panel in contact with the surface to form a "c" shape.

또 다른 실시예로서, 상기 보강부재는 파이프(pipe)로 구성되며 상기 파이프의 개구면들의 양측이 어퍼패널과 로워패널을 향하도록 장착되되, 상기 로워패널의 길이방향을 따라 열을 이루도록 다수 개가 부설된다.In another embodiment, the reinforcing member is composed of a pipe, and both sides of the openings of the pipe are mounted to face the upper panel and the lower panel, and a plurality of the reinforcing members are arranged to form heat along the longitudinal direction of the lower panel. do.

아울러, 상기 보강부재는 양끝단들이 각각 어퍼패널 및 로워패널을 관통하도록 결합되고, 아크용접 또는 레이저용접으로 접합된다.
In addition, the reinforcing member is coupled so that both ends penetrate the upper panel and the lower panel, respectively, and is joined by arc welding or laser welding.

상기와 같은 구성의 본 발명은, 서브프레임의 굽힘(벤딩)에 대한 강성을 증대시켜 공진으로 인한 소음 및 진동 전달을 억제하며 서브프레임의 변형을 방지할 수 있는 효과가 있다.The present invention having the configuration described above has the effect of suppressing the transmission of the noise and vibration due to resonance by increasing the rigidity of the bending (bending) of the subframe and to prevent the deformation of the subframe.

아울러, 종래의 다이나믹 댐퍼를 삭제하여 원가를 절감시키고 중량을 감소시킬 수 있는 효과가 있다. 특히, 종래의 다이나믹 댐퍼를 갖는 구조와 대비하여 실용 영역 대의 주파수(130Hz) 가진을 더욱 효율적을 차단할 수 있는 효과가 있다.
In addition, it is possible to reduce the cost and weight by deleting the conventional dynamic damper. In particular, there is an effect that can more effectively block the excitation of the frequency band (130Hz) of the practical range compared to the structure having a conventional dynamic damper.

도 1a 는 차량용 서브프레임이 차체 내의 엔진룸에 장착된 모습을 도시한 도면,
도 1b 는 종래의 차량용 서브프레임의 사시도 및 어퍼내널, 로워패널, 롤마운팅브라켓이 분해된 모습을 도시한 사시도,
도 2 는 본 발명의 바람직한 실시예에 따른 서브프레임의 어퍼패널을 투시하여 보강부재 및 로워패널의 모습이 나타나도록 도시한 투시도,
도 3 은 본 발명의 제3실시예에 따른 보강부재가 장착된 로워패널의 사시도,
도 4a 는 본 발명의 제1실시예에 따른 보강부재가 장착된 모습을 도시한 종단면도,
도 4b 는 본 발명의 제2실시예에 따른 보강부재가 장착된 모습을 도시한 종단면도,
도 4c 는 본 발명의 제3실시예에 따른 보강부재가 장착된 모습을 도시한 종단면도,
도 5 는 본 발명에 따른 서브프레임이 적용된 경우와 종래의 서브프레임이 적용된 경우 차량의 실내로 유입되는 소음을 비교하여 도시한 그래프.
1a is a view showing a vehicle subframe mounted on the engine compartment in the vehicle body,
1B is a perspective view illustrating an exploded view of a conventional vehicle subframe and an upper internal, lower panel, and roll mounting brackets;
Figure 2 is a perspective view showing the appearance of the reinforcing member and the lower panel to see through the upper panel of the subframe according to an embodiment of the present invention,
3 is a perspective view of a lower panel mounted with a reinforcing member according to a third embodiment of the present invention;
Figure 4a is a longitudinal cross-sectional view showing a state in which the reinforcing member is mounted according to the first embodiment of the present invention,
Figure 4b is a longitudinal sectional view showing a state in which the reinforcing member is mounted according to the second embodiment of the present invention,
Figure 4c is a longitudinal cross-sectional view showing a state in which the reinforcing member is mounted according to the third embodiment of the present invention,
5 is a graph illustrating a comparison of noise introduced into a vehicle interior when a subframe according to the present invention is applied and a conventional subframe is applied.

이하, 도면을 참조하여 본 발명의 바람직한 실시예에 따른 차량용 서브프레임의 구조를 더욱 상세히 설명한다.Hereinafter, a structure of a vehicle subframe according to a preferred embodiment of the present invention will be described in detail with reference to the drawings.

도 2 를 참조하면, 본 발명의 서브프레임은 내부에 일정공간이 형성되어 보강부재가 장착가능하도록 로워패널(10)과 어퍼패널(20)의 테두리부분들이 접합되어 형성된다. 즉, 상기 로워패널(10)은 테두리부분이 상측으로 절곡된 형상이며 어퍼패널(20)은 테두리부분이 하측으로 절곡된 형상을 가지며 도 4a 내지 4c 에 도시된 바와 같이 용접을 통해 접합된다. Referring to FIG. 2, the subframe of the present invention is formed by joining edge portions of the lower panel 10 and the upper panel 20 so that a predetermined space is formed therein so that the reinforcing member can be mounted thereon. That is, the lower panel 10 has a shape in which the rim is bent upward, and the upper panel 20 has a shape in which the rim is bent downward, and is joined by welding as shown in FIGS. 4A to 4C.

상기 보강부재는 서브프레임에 작용하는 벤딩(bending)으로 인한 변형을 억제하며 강성을 증대시켜 공진을 방지하기 위해 장착되며, 하단은 로워패널(10)에 접합되며 상단은 어퍼패널(20)에 접합된다. 그리고, 상기 보강부재는 로워패널(10)과 어퍼패널(20) 사이에서 길이방향(횡방향)을 따라 배치된다. The reinforcing member is mounted to prevent deformation due to bending acting on the subframe and to increase rigidity to prevent resonance, and the lower end is joined to the lower panel 10 and the upper end is joined to the upper panel 20. do. In addition, the reinforcing member is disposed along the longitudinal direction (lateral direction) between the lower panel 10 and the upper panel 20.

본 발명의 제1실시예에 따른 보강부재(1)는 도 2 와 도 4a 에 도시된 바와 같이 직사각형 형상의 판(plate) 모양을 가지되, 로워패널(10)에서 수직으로 세워지며 상기 로워패널(10)의 길이방향을 따라 부설된다. 두 개 이상이 부설되는 경우, 종방향을 따라 서로 이격되어 평행하게 배치된다. 상기 보강부재(1)는 접착이 용이하도록 양끝단이 로워패널(10)과 어퍼패널(20)을 관통하도록 장착된 후, 돌출 부위를 아크용접하여 접착된다.The reinforcing member 1 according to the first embodiment of the present invention has a plate shape having a rectangular shape as shown in FIGS. 2 and 4A, and is vertically erected in the lower panel 10 and is lowered in the lower panel. It is laid along the longitudinal direction of (10). When two or more are laid, they are spaced apart and parallel to one another along the longitudinal direction. The reinforcing member 1 is mounted so that both ends penetrate the lower panel 10 and the upper panel 20 so as to easily adhere, and then arc welding the protruding portion.

본 발명의 제2실시예에 따른 보강부재(2)는 도 4b 에 도시된 바와 같이, 로워패널(10)과 어퍼패널(30)을 관통하지 않고 면접촉하여 접합되도록 양단이 절곡되어 단면이 "ㄷ" 모양으로 형성된다. 상기 제2실시예에 따른 보강부재(2)는 레이저용접 및/또는 스팟(spot) 용접으로 접합된다.As shown in FIG. 4B, the reinforcing member 2 according to the second exemplary embodiment of the present invention is bent at both ends so as to be joined in surface contact without penetrating the lower panel 10 and the upper panel 30 so that the cross-section thereof is " It is shaped like a "". The reinforcing member 2 according to the second embodiment is joined by laser welding and / or spot welding.

아울러, 본 발명의 제3실시예에 따른 보강부재(3)는 도 3 과 도 4 c 에 도시된 바와 같이, 다수 개의 파이프(pipe)들로 구성된다. 상기 파이프들은 양측 홀(개구면)들이 로워패널(10)과 어퍼패널(20)을 향하도록 장착되되, 로워패널(10)(및 어퍼패널)의 종방향을 따라 열(列)을 이루도록 장착된다. 상기 제3실시예에 따른 보강부재(3)는 제1실시예와 같이 용접이 용이하도록 파이프들의 끝단이 어퍼패널(20)과 로워패널(10)에서 돌출되도록 관통시킨 후 돌출부위 주변을 용접함으로서 접합시키는 것이 바람직하다. In addition, the reinforcing member 3 according to the third embodiment of the present invention is composed of a plurality of pipes, as shown in Figs. The pipes are mounted such that both holes (opening surfaces) face the lower panel 10 and the upper panel 20, and are arranged in a row along the longitudinal direction of the lower panel 10 (and the upper panel). . The reinforcing member 3 according to the third embodiment penetrates the end of the pipes so as to protrude from the upper panel 20 and the lower panel 10 so as to facilitate welding, and then welds the periphery around the protrusions. It is preferable to bond.

본 발명의 각 실시예들에 따른 보강부재들은 서브프레임의 크기에 따라서 다 수개가 부설될 수 있으며, 동일한 형태를 갖는 보강부재들로만 서브프레임 내에 부설될 수 있고, 도 2 에 도시된 바와 같이 다른 실시예에 따른 보강부재들이 함께 혼용되어 부설될 수도 있다. A plurality of reinforcing members according to each embodiment of the present invention may be laid in accordance with the size of the subframe, can be placed in the subframe only with the reinforcing members having the same shape, another embodiment as shown in FIG. Reinforcing members according to the example may be mixed and laid together.

한편, 도 5 와 같이, 본 발명의 바람직한 실시예에 따른 서브프레임이 장착된 차량의 경우 서브프레임의 강성 증대에 따라 공진을 억제함으로서 차량의 실내로 유입되는 소음을 감소시킨다. 특히 130Hz 전후 주파수 영역 대의 소음을 더욱 효율적으로 억제시킬 수 있음을 확인할 수 있다.On the other hand, as shown in Figure 5, in the case of a vehicle equipped with a subframe according to a preferred embodiment of the present invention by suppressing the resonance according to the increase in the rigidity of the subframe to reduce the noise flowing into the interior of the vehicle. In particular, it can be seen that the noise of the frequency band around 130Hz can be suppressed more efficiently.

이상과 같이 본 명세서와 도면에 개시된 실시예들은 본 발명의 이해를 돕기 위해 특정 예를 제시한 것에 지나지 않으며, 본 발명의 범위를 제한하고자 하는 것은 아니다. 여기에 개시된 실시예들 이외에도 본 발명의 기술적 사상에 바탕을 둔 다른 변형예들이 실시 가능하다는 것은 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 자명한 것이다.
As described above, the embodiments disclosed in the present specification and drawings are only illustrative of specific examples in order to facilitate understanding of the present invention, and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention are possible in addition to the embodiments disclosed herein.

1 : 제1실시예에 따른 보강부재
2 : 제2실시예에 따른 보강부재
3 : 제3실시예에 따른 보강부재
10 : 로워패널
20 : 어퍼패널
1: Reinforcing member according to the first embodiment
2: reinforcing member according to the second embodiment
3: reinforcing member according to the third embodiment
10: Lower panel
20: upper panel

Claims (5)

테두리부분이 상측으로 절곡된 로워패널과 테두리부분이 하측으로 절곡된 어퍼패널이 결합되어 내부에 일정공간이 형성된 차량용 서브프레임의 구조에 있어서,
상기 로워패널과 어퍼패널 사이에서는 하단이 로워패널과 접합되고 상단이 어퍼패널과 접합되는 보강부재가 장착되는 것을 특징으로 하는 차량용 서브프레임의 구조.
In the structure of a vehicle subframe in which a lower space is bent in the upper portion and the upper panel bent in the lower portion is coupled to form a predetermined space therein,
Between the lower panel and the upper panel structure of a subframe for a vehicle, characterized in that the reinforcing member is joined to the lower panel and the upper panel is joined to the upper panel.
제 1 항에 있어서, 상기 보강부재는 판(plate) 형상이되, 로워패널에서 수직으로 세워지며 상기 로워패널의 길이방향을 따라 부설되는 것을 특징으로 하는 차량용 서브프레임의 구조.
The structure of claim 1, wherein the reinforcing member has a plate shape and is erected vertically in the lower panel and is laid along the longitudinal direction of the lower panel.
제 2 항에 있어서, 상기 보강부재는 로워패널과 어퍼패널과 면접촉하여 접합되도록 양단이 절곡된 것을 특징으로 하는 차량용 서브프레임의 구조.
3. The structure of claim 2, wherein the reinforcing member is bent at both ends to be joined to the lower panel and the upper panel by surface contact.
제 1 항에 있어서, 상기 보강부재는 파이프(pipe)로 구성되며 상기 파이프의 개구면들의 양측이 로워패널과 어퍼패널을 향하도록 장착되되, 상기 로워패널의 길이방향을 따라 열을 이루도록 다수 개가 부설되는 것을 특징으로 하는 차량용 서브프레임의 구조.
According to claim 1, wherein the reinforcing member is composed of a pipe (pipe) and is mounted so that both sides of the opening surface of the pipe facing the lower panel and the upper panel, a plurality of laying so as to form a row along the longitudinal direction of the lower panel Structure of a vehicle subframe, characterized in that.
제 2 항 또는 제 4 항에 있어서, 상기 보강부재는 양끝단들이 각각 로워패널 및 어퍼패널을 관통하도록 결합되고, 아크용접 또는 레이저용접으로 접합되는 것을 특징으로 하는 차량용 서브프레임의 구조.
5. The structure of claim 2 or 4, wherein the reinforcing member is coupled so that both ends thereof pass through the lower panel and the upper panel, respectively, and is joined by arc welding or laser welding.
KR1020110066724A 2011-07-06 2011-07-06 Structure of subframe for vehicle KR101705146B1 (en)

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KR20070037094A (en) * 2005-09-30 2007-04-04 기아자동차주식회사 Dynamic damper
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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101491302B1 (en) * 2013-08-22 2015-02-11 현대자동차주식회사 Apparatus for sub-frame of vehicle
KR20160039088A (en) * 2014-09-30 2016-04-08 주식회사화신 Subframe for vehicle
KR20160063510A (en) 2014-11-26 2016-06-07 현대자동차주식회사 Apparatus for sub-frame of vehicle
KR20170070294A (en) 2015-12-11 2017-06-22 현대자동차주식회사 Subframe assembly for vehicle
CN108263474A (en) * 2016-12-30 2018-07-10 长城汽车股份有限公司 Vehicle subframe structure and its installation method
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CN108115298A (en) * 2017-12-15 2018-06-05 四川建安工业有限责任公司 For the designing and manufacturing technique of car rear overhang class subframe
CN108438052A (en) * 2018-03-06 2018-08-24 安徽江淮汽车集团股份有限公司 The fore sub frame of low-frequency range noise in a kind of optimization
CN110816666A (en) * 2018-08-09 2020-02-21 本田技研工业(中国)投资有限公司 Auxiliary frame

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