KR100448797B1 - a powertrain roll reducing device in vehicles - Google Patents

a powertrain roll reducing device in vehicles Download PDF

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Publication number
KR100448797B1
KR100448797B1 KR10-2002-0019398A KR20020019398A KR100448797B1 KR 100448797 B1 KR100448797 B1 KR 100448797B1 KR 20020019398 A KR20020019398 A KR 20020019398A KR 100448797 B1 KR100448797 B1 KR 100448797B1
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South Korea
Prior art keywords
roll
spring
piston
housing
accelerator pedal
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KR10-2002-0019398A
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Korean (ko)
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KR20030080653A (en
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김효석
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현대자동차주식회사
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00Arrangement or mounting of transmissions in vehicles
    • B60K17/04Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/06Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60YINDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2306/00Other features of vehicle sub-units
    • B60Y2306/09Reducing noise
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60YINDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00Special features of vehicle units
    • B60Y2400/48Vibration dampers, e.g. dual mass flywheels

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

본 발명은 자동차의 파워트레인 롤 저감장치에 관한 것으로, 롤로드(11)의 단부에 피스톤(12)이 장착되고, 이 피스톤(12)은 차체에 고정된 하우징(10)에 내장되되, 하우징(10)과의 벽면과 스프링(13)으로 연결되어 보통상태의 주행시 진동을 흡수할 수 있도록 되어 있다.The present invention relates to a powertrain roll reduction device for a vehicle, wherein a piston 12 is mounted at an end of a roll rod 11, and the piston 12 is embedded in a housing 10 fixed to a vehicle body, and includes a housing ( 10) is connected to the wall surface and the spring 13 so as to absorb vibration during normal driving.

또한, 상기 하우징(10)의 스프링(13) 설치공간은 전환밸브(33)가 설치된 챔버(30)를 통해 엔진의 인테이크 서지탱크(40)에 연결되어 있어서, 가속페달(50)을 밟아 상기 전환밸브(33)가 연결관(31)을 개방하였을 때 인테이크 서지탱크(40)의 부압이 스프링(13) 설치공간에 인가되어 피스톤(12)을 당겨줌으로써 급가속시 발생되는 엔진의 롤을 억제할 수 있도록 되어 있다.In addition, the installation space of the spring 13 of the housing 10 is connected to the intake surge tank 40 of the engine through the chamber 30 in which the switching valve 33 is installed, so as to step on the accelerator pedal 50 to perform the switching. When the valve 33 opens the connection pipe 31, the negative pressure of the intake surge tank 40 is applied to the spring 13 installation space to pull the piston 12 to suppress the roll of the engine generated during rapid acceleration. It is supposed to be.

따라서, 보통 주행시의 작은 진동과 급가속시의 급격한 롤진동을 모두 흡수할 수 있게 됨으로써 승차감이 향상되는 효과가 있다.Therefore, it is possible to absorb both the small vibration during normal driving and the rapid roll vibration during rapid acceleration, thereby improving the riding comfort.

Description

자동차의 파워트레인 롤 저감장치{a powertrain roll reducing device in vehicles}Powertrain roll reducing device in vehicles

본 발명은 자동차의 파워트레인 롤 저감장치에 관한 것으로, 특히 평상주행시의 작은 진동이나 급가속시 크게 발생되는 롤 진동을 모두 효과적으로 저감할 수 있도록 된 자동차의 파워트레인 롤 저감장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for reducing power train rolls of an automobile, and more particularly, to an apparatus for reducing power train rolls of an automobile that can effectively reduce both small vibrations during normal driving and large roll vibrations generated during rapid acceleration.

일반적으로 자동차의 엔진은 변속기와 일체로 되어 있으므로 차량 주행시 동일한 상태로 거동되므로 이들을 장착할때는 하나의 물체로 간주하고 전체적인 관점에서 중량을 지지하고 거동을 제어하고 있다.In general, since the engine of an automobile is integrated with a transmission, the engine is behaving in the same state when driving the vehicle. Therefore, when the vehicle is mounted, the engine is regarded as an object, and the weight is supported and the behavior is controlled from an overall perspective.

즉, 도 1에 도시된 바와 같이, 관성 주축상(1)에 엔진 주 마운트(2)와 변속기 주 마운트(3)를 설치하여 파워트레인(엔진+변속기 ; powertrain)의 중량을 안정적으로 지지하고, 또한 도 2에 도시된 바와 같이, 변속기와 차체를 연결하는 롤로드(4)를 이용하여 엔진의 급격한 토크변동에 의해 발생하는 롤을 저감할 수 있도록 되어 있다(C는 롤 발생시 파워트레인의 회전중심).That is, as shown in Figure 1, by installing the engine main mount (2) and the transmission main mount (3) on the inertia main shaft (1) to stably support the weight of the power train (engine + transmission; powertrain), In addition, as shown in Figure 2, by using the roll rod 4 connecting the transmission and the vehicle body, it is possible to reduce the roll caused by the sudden torque change of the engine (C is the center of rotation of the powertrain when the roll is generated) ).

한편, 상기 롤에 의한 충격량을 쇼크(shock)라고 하고, 쇼크 후 차량이 전후방향으로 울컹거리는 진동을 저크(jerk)라고 하는데, 도 3의 그래프에 나타난 바와 같이, 첫 번째 피크(peak)의 크기가 쇼크이고, 이후 크기는 줄지만 3∼8Hz의 가진(울컹거림)이 저크이다.On the other hand, the amount of impact due to the roll is called a shock (shock), the vibration of the vehicle waggling in the front and rear direction after the shock is called a jerk (jerk), as shown in the graph of Figure 3, the size of the first peak (peak) Is shock, and then the size is reduced, but the excitation of 3 to 8 Hz is jerk.

한편, 상기 쇼크와 저크는 주행중 운전자가 직접 느낄 수 있는 것이어서 운전자가 차량의 성능 및 품질을 평가하는데 중요한 요소가 되므로, 차량의 상품성에 지대한 영향을 미치게 된다.On the other hand, since the shock and jerk can be felt directly by the driver while driving, it becomes an important factor for the driver to evaluate the performance and quality of the vehicle, and thus has a great influence on the merchandise of the vehicle.

따라서, 상기 롤로드(4)의 차체 연결부분에 고무가 내장된 인슐레이터(5)를 설치함으로써 상기 쇼크와 저크를 저감하고 또한 소음진동성능(NVH(noise,vibration, harshness)성능)을 개선하고자 하고 있다.Therefore, by installing the rubber insulator 5 in the vehicle body connection portion of the roll rod 4 to reduce the shock and jerk and to improve the noise vibration performance (NVH (noise, vibration, harshness) performance) have.

한편, 상기 소음진동성능의 향상을 위해서는 파워트레인에서 차체측으로 전달되는 진동 및 소음을 흡수하는데 유리하도록 상기 인슐레이터(5)의 댐핑강성이 작아야 하고, 반면 쇼크와 저크를 저감시키기 위해서는 파워트레인의 전후방향 거동 즉, 롤을 최대한 억제할 수 있도록 댐핑강성이 커야 한다.On the other hand, in order to improve the noise and vibration performance, the damping rigidity of the insulator 5 should be small so as to be advantageous in absorbing vibrations and noises transmitted from the power train to the vehicle body side, whereas in order to reduce shock and jerk, the front and rear directions of the power train are reduced. The damping stiffness must be large to minimize the behavior, ie, the roll.

그러나, 상기 인슐레이터(5)에 내장된 고무는 제작시 부여된 일정한 탄성값을 가지고 있으므로 쇼크와 저크를 저감시키면서 동시에 차량의 소음진동성능의 향상을 도모하기에는 한계가 있었다.However, since the rubber contained in the insulator 5 has a constant elastic value given at the time of manufacture, there is a limit in reducing the shock and jerk while simultaneously improving the noise vibration performance of the vehicle.

이에 본 발명은 상기와 같은 점을 감안하여 발명된 것으로, 먼저 쇼크와 저크에 민감한 시점, 즉 급가속시에는 댐핑강성이 증가되어 파워트레인의 전후방향 거동을 억제할 수 있고, 급가속시가 아닐 경우에는 댐핑강성이 감소하여 소음진동의 저감에 유리하도록 된 자동차의 파워트레인 롤 저감장치를 제공함에 그 목적이 있다.Therefore, the present invention has been invented in view of the above-mentioned point. First, the damping stiffness is increased at the time of being sensitive to shock and jerk, that is, at the time of rapid acceleration, so that the front and rear behavior of the power train can be suppressed, and not during rapid acceleration. In this case, an object of the present invention is to provide a power train roll reduction device for a vehicle, in which damping stiffness is reduced to advantageously reduce noise and vibration.

도 1은 자동차의 파워트레인 설치상태 평면도,1 is a plan view of a power train installation state of a vehicle;

도 2는 도 1의 측면도,2 is a side view of FIG. 1;

도 3은 급가속시 파워트레인에 발생되는 롤 방향 진동을 나타내는 그래프,3 is a graph showing the vibration in the roll direction generated in the powertrain during rapid acceleration,

도 4는 본 발명에 따른 파워트레인 롤 저감장치의 구성도이다.Figure 4 is a block diagram of a powertrain roll reduction device according to the present invention.

*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

10 : 하우징, 10a,10b : 개구홀,10: housing, 10a, 10b: opening hole,

11 : 롤로드, 12 : 피스톤,11: roll rod, 12: piston,

13 : 스프링, 20 : 튜브,13: spring, 20: tube,

30 : 챔버, 31 : 연결관,30 chamber, 31 connector,

32 : 개방관, 33 : 전환밸브,32: open pipe, 33: switching valve,

34 : 리턴스프링, 40 : 인테이크 서지탱크,34: return spring, 40: intake surge tank,

50 : 가속페달, 60 : 와이어.50: accelerator pedal, 60: wire.

상기와 같은 목적을 달성하기 위한 본 발명은, 롤로드의 단부에 장착되는 피스톤이 차체에 고정된 하우징에 내장되며, 상기 피스톤과 하우징의 벽면사이에 스프링이 설치되며, 상기 피스톤을 중심으로 하우징의 양측 공간에는 개구홀이 형성되는 한편, 인테이크 서지탱크에 연결되는 연결관과 대기중으로 개방되는 개방관이 형성된 챔버의 내부에 가속페달을 밟을 때 연결관을 개방하고 개방관을 차단하는 전환밸브가 구비되며, 상기 챔버는 상기 하우징의 스프링 설치공간에 형성된 개구홀에 튜브를 통해 연결되는 구조로 이루어진다.The present invention for achieving the above object, the piston mounted to the end of the roll rod is embedded in the housing fixed to the vehicle body, a spring is installed between the piston and the wall surface of the housing, the center of the housing An opening hole is formed in both spaces, and a switching valve for opening the connecting pipe and blocking the opening pipe when the accelerator pedal is pressed inside the chamber in which the connecting pipe connected to the intake surge tank and the open pipe opening to the atmosphere is formed. The chamber has a structure that is connected to the opening hole formed in the spring installation space of the housing through a tube.

따라서, 보통상태의 주행시에는 상기 스프링의 탄성에 의해 진동이 흡수되고, 급가속시에는 인테이크 서지탱크의 부압이 피스톤을 잡아당겨 롤로드를 잡아 줌으로써 파워트레인의 롤을 억제할 수 있게 된다.Therefore, the vibration is absorbed by the elasticity of the spring when driving in the normal state, the negative pressure of the intake surge tank pulls the piston to hold the roll rod during the rapid acceleration to suppress the roll of the power train.

이하, 본 발명을 첨부된 예시도면을 참조하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail.

도 4는 본 발명에 따른 자동차의 파워트레인 롤 저감장치의 구성도이다. 상기 하우징(10)은 일종의 밀폐용기로서 크로스멤버 등과 같은 차체에 고정되어 있으며, 앞부분을 통해 일단이 변속기에 고정된 롤로드(11)의 타단이 유입되되, 하우징(10)내로 유입된 부분의 단부에는 피스톤(12)이 장착되고, 이 피스톤(12)과 하우징(10)의 벽면 사이에 양단이 고정되는 스프링(13)이 설치된다. 이 스프링(13)은 종래 인슐레이터에 내장되는 고무보다 탄성강도를 작게 설정한다.Figure 4 is a block diagram of a power train roll reduction device of a vehicle according to the present invention. The housing 10 is a kind of hermetically sealed container fixed to a vehicle body such as a cross member, and the other end of the roll rod 11 having one end fixed to the transmission is introduced through the front portion, and an end of the portion introduced into the housing 10. The piston 12 is mounted, and the spring 13 which is fixed at both ends between the piston 12 and the wall surface of the housing 10 is provided. The spring 13 sets the elastic strength smaller than that of the rubber in the conventional insulator.

상기 피스톤(12)에 의해 구분된 하우징(10)내의 양측 공간에는 각각 개구홀(10a,10b)이 형성되며, 이중 스프링(13)이 설치된 공간의 개구홀(10a)은 튜브(20)를 매개로 챔버(30)에 연결된다.Opening holes 10a and 10b are formed in both spaces in the housing 10 separated by the piston 12, and the opening holes 10a in the space in which the double spring 13 is installed are mediated through the tube 20. The furnace chamber 30 is connected.

상기 챔버(30)에는 연결관(31)과 개방관(32)이 형성되어 있으며, 연결관(31)은 엔진의 인테이크 서지탱크(40)에 연결되고, 개방관(32)은 대기중으로 개방되어 있다.The chamber 30 is formed with a connecting tube 31 and an open tube 32, the connecting tube 31 is connected to the intake surge tank 40 of the engine, the open tube 32 is open to the atmosphere have.

또한, 상기 챔버(30)의 내부에는 전환밸브(33)가 설치되는데, 중심부가 핀등의 부품으로 고정되어 회동가능하고, 가속페달(50)에 와이어(60)로 연결되어 있어서 가속페달(50)을 밟았을 때 당겨지도록 되어 있으며, 리턴스프링(34)이 구비되어 가속페달(50)을 놓았을 때 원위치로 복귀하도록 되어 있다.In addition, the switching valve 33 is installed inside the chamber 30, the center of which is fixed by a component such as a pin and is rotatable, and is connected to the accelerator pedal 50 by a wire 60, thereby accelerating the pedal 50. When it is pressed down, it is to be pulled out, and a return spring 34 is provided to return to the original position when the accelerator pedal 50 is released.

상기 전환밸브(33)는 가속페달(50)을 밟지 않았을때는 연결관(31)의 입구를 막고 있고, 급가속을 위해 가속페달(50)을 최대한 밟았을때는 개방관(32)를 막도록 설치된다.The switching valve 33 blocks the inlet of the connecting pipe 31 when the accelerator pedal 50 is not stepped, and is installed to block the opening tube 32 when the accelerator pedal 50 is stepped on as much as possible for rapid acceleration. do.

이제, 본 발명의 작동을 설명한다.Now, the operation of the present invention will be described.

보통상태의 운행시 발생하는 작은 크기의 진동은 롤로드(11)의 피스톤(12)을 지지하고 있는 스프링(13)의 압축 및 신장작용에 의해 흡수된다. 이 스프링(13)은 종래 인슐레이터에 내장된 고무보다 작은 탄성강도를 가지고 있으므로 작은 진동을 흡수하는데 보다 유리하다.Small vibrations generated during normal operation are absorbed by the compression and extension of the spring 13 supporting the piston 12 of the roll rod 11. This spring 13 has a smaller elastic strength than the rubber embedded in the conventional insulator and is therefore more advantageous for absorbing small vibrations.

이때 상기 챔버(30)의 연결관(31)은 전환밸브(33)에 의해 막혀 있고 개방관(32)은 열려 있으므로 피스톤(12)의 양측 공간에는 각각 개구홀(10b) 및 개방관(32)→챔버(30)→튜브(20)→개구홀(10a)을 통한 대기압이 작용하므로 피스톤(12)의 전후이동에는 롤로드(11)를 통해 전달된 파워트레인의 전후진동력 및 스프링(13)에 의한 진동감쇠력 이외의 외력은 작용하지 않음으로써 스프링(13)에 의한 진동감쇠작용이 정상적으로 이루어진다.At this time, since the connection pipe 31 of the chamber 30 is blocked by the switching valve 33 and the open pipe 32 is open, the opening holes 10b and the open pipe 32 are respectively formed in both spaces of the piston 12. → The chamber 30 → tube 20 → atmospheric pressure through the opening hole (10a) acts to move back and forth of the piston 12, the front and rear vibration force and spring 13 of the power train transmitted through the roll rod (11) External force other than the vibration damping force by the effect does not act by the vibration damping action by the spring 13 is made normally.

반면, 차량이 급가속할 때 파워트레인에는 관성에 의해 도 2에 도시된 화살표 방향으로 모멘트가 발생하므로 롤로드(11)에는 앞쪽으로 당겨지는 힘(F)이 작용하게 된다.On the other hand, when the vehicle suddenly accelerates, the moment is generated in the direction of the arrow shown in Figure 2 by the inertia in the power train, the force (F) is pulled forward to the roll rod (11).

그런데, 이 상태는 운전자가 급가속을 위해 가속페달(50)을 밟은 상태이므로와이어(60)가 당겨져 전환밸브(33)가 회동됨으로써 연결관(31)은 열리고 개방관(32)은 닫힌 상태이다.However, in this state, since the driver has stepped on the accelerator pedal 50 for rapid acceleration, the wire 60 is pulled and the switching valve 33 is rotated so that the connecting pipe 31 is opened and the open pipe 32 is closed. .

따라서, 인테이크 서지탱크(40)의 부압이 하우징(10)의 스프링(13) 설치공간으로 인가됨으로써 피스톤(12)이 스프링(13)을 압축시키면서 후방으로 이동하게 되며, 이때 작용하는 힘이 상기 롤로드(11)를 앞쪽으로 당기는 힘(F)을 상쇄시켜줌으로써 파워트레인이 전후방향으로 거동되지 않게 되는 것이다.Therefore, the negative pressure of the intake surge tank 40 is applied to the installation space of the spring 13 of the housing 10 so that the piston 12 moves backward while compressing the spring 13, and the force acting on the roll By canceling the force (F) to pull the rod 11 forward is that the power train will not be moved back and forth.

이후, 가속페달(33)에서 발을 떼면 전환밸브(33)가 리턴스프링(34)에 의해 원위치로 복귀되어 스프링(13) 설치공간에 부압이 작용하지 않게 됨으로써 스프링(13)에 의한 보통상태의 진동저감이 이루어진다.Subsequently, when the foot is released from the accelerator pedal 33, the switching valve 33 is returned to its original position by the return spring 34, so that the negative pressure does not act on the spring 13 installation space, thereby maintaining the normal state by the spring 13. Vibration reduction is achieved.

즉, 본 발명은 상기 하우징(10)이 가변 댐핑 인슐레이터로서 작용토록 한 것으로서, 보통상태의 운행시에는 작은 댐핑강성으로 파워트레인의 미세진동을 흡수할 수 있고, 급가속시에는 큰 댐핑강성으로 크기가 큰 롤진동의 발생을 억제할 수 있도록 된 것이다.That is, the present invention is to allow the housing 10 to act as a variable damping insulator, it can absorb the fine vibration of the powertrain with a small damping stiffness during normal operation, and large damping stiffness during rapid acceleration It is possible to suppress the generation of large roll vibrations.

이상 설명한 바와 같이 본 발명에 따르면, 보통상태의 주행시 파워트레인에 발생하는 작은 크기의 전후 진동에 대해서는 작은 댐핑강성이 작용하여 차량의 소음 및 진동 개선효과가 크고, 급가속시에 발생하는 큰 롤 진동에 대해서는 강한 댐핑강성이 작용하여 파워트레인의 롤을 억제함으로써 쇼크나 저크를 감소시킬 수 있게 되는 효과가 있다.As described above, according to the present invention, the small damping stiffness is applied to the small magnitude of front and rear vibration generated in the power train during normal driving, so that the noise and vibration improvement effect of the vehicle is large, and the large roll vibration generated during rapid acceleration The strong damping stiffness acts to suppress the roll of the powertrain, thereby reducing the shock and jerk.

또한, 상기와 같이 파워트레인의 전후방향 진동이 최대한 억제됨으로써 머플러 등의 엔진 보기류 및 파워트레인이 장착된 섀시부분의 내구성이 저하되는 현상을 방지할 수 있게 되는 효과도 있다.In addition, as described above, the front and rear vibration of the power train is suppressed as much as possible, thereby preventing the phenomenon of deterioration in durability of an engine accessory such as a muffler and a chassis portion on which the power train is mounted.

Claims (2)

롤로드(11)의 단부에 장착되는 피스톤(12)이 차체에 고정된 하우징(10)에 내장되며, 상기 피스톤(12)과 하우징(10)의 벽면 사이에 스프링(13)이 설치되며, 상기 피스톤(12)을 중심으로 하우징(10)의 양측 공간에는 개구홀(10a,10b)이 형성되는 한편, 인테이크 서지탱크(40)에 연결되는 연결관(31)과 대기중으로 개방되는 개방관(32)이 형성된 챔버(30)의 내부에 가속페달(50)을 밟을 때 연결관(31)을 개방하고 개방관(32)을 차단하는 전환밸브(33)가 설치되며, 상기 챔버(30)는 하우징(10)의 스프링(13) 설치공간에 형성된 개구홀(10a)에 튜브(20)를 통해 연결되는 구조로 이루어진 자동차의 파워트레인 롤 저감장치.A piston 12 mounted at the end of the roll rod 11 is embedded in the housing 10 fixed to the vehicle body, and a spring 13 is installed between the piston 12 and the wall surface of the housing 10. Opening holes 10a and 10b are formed in the spaces on both sides of the housing 10 around the piston 12, while the connecting pipe 31 connected to the intake surge tank 40 and the open pipe 32 open to the atmosphere. ) Is provided with a switching valve 33 for opening the connection pipe 31 and blocking the open pipe 32 when the accelerator pedal 50 is stepped inside the chamber 30 in which the chamber 30 is provided. Powertrain roll reduction device for a vehicle made of a structure that is connected to the opening hole (10a) formed in the spring (13) installation space of the (10) through the tube (20). 제 1항에 있어서, 상기 전환밸브(33)는 중심부가 핀 등을 매개로 회동가능하게 고정되고, 가속페달(50)에 와이어(60)로 연결되어 가속페달(50)을 밟았을 때 당겨지며, 리턴스프링(34)이 구비되어 가속페달(50)을 놓았을 때 원위치로 복귀하도록 된 것을 특징으로 하는 자동차의 파워트레인 롤 저감장치.According to claim 1, wherein the switching valve 33 is pivotally fixed through the pin, the center, connected to the accelerator pedal 50 by a wire 60 is pulled when stepping on the accelerator pedal (50) , The return spring 34 is provided, the power train roll reduction device of the vehicle, characterized in that to return to the original position when the accelerator pedal (50) is released.
KR10-2002-0019398A 2002-04-10 2002-04-10 a powertrain roll reducing device in vehicles KR100448797B1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5923712A (en) * 1982-07-30 1984-02-07 Hino Motors Ltd Air suspension
KR19980031615A (en) * 1996-10-31 1998-07-25 박병재 Rolling prevention device of the engine
KR0178948B1 (en) * 1996-06-29 1999-04-01 한승준 Viblation absorbing device of engine and t/m
KR19990031934U (en) * 1997-12-31 1999-07-26 정몽규 Rolling control of cab for van
KR20030016846A (en) * 2001-08-22 2003-03-03 현대자동차주식회사 a insulator of roll rod in a vehicle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5923712A (en) * 1982-07-30 1984-02-07 Hino Motors Ltd Air suspension
KR0178948B1 (en) * 1996-06-29 1999-04-01 한승준 Viblation absorbing device of engine and t/m
KR19980031615A (en) * 1996-10-31 1998-07-25 박병재 Rolling prevention device of the engine
KR19990031934U (en) * 1997-12-31 1999-07-26 정몽규 Rolling control of cab for van
KR20030016846A (en) * 2001-08-22 2003-03-03 현대자동차주식회사 a insulator of roll rod in a vehicle

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