KR100857361B1 - Geometry control system for vehicle - Google Patents

Geometry control system for vehicle Download PDF

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Publication number
KR100857361B1
KR100857361B1 KR1020070111693A KR20070111693A KR100857361B1 KR 100857361 B1 KR100857361 B1 KR 100857361B1 KR 1020070111693 A KR1020070111693 A KR 1020070111693A KR 20070111693 A KR20070111693 A KR 20070111693A KR 100857361 B1 KR100857361 B1 KR 100857361B1
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South Korea
Prior art keywords
vehicle
ball joint
actuator
geometry
wheel
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KR1020070111693A
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Korean (ko)
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김상기
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현대자동차주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
    • B60G17/016—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
    • B60G17/0162—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input mainly during a motion involving steering operation, e.g. cornering, overtaking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G3/00—Resilient suspensions for a single wheel
    • B60G3/18—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram
    • B60G3/20—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid
    • B60G3/26—Means for maintaining substantially-constant wheel camber during suspension movement ; Means for controlling the variation of the wheel position during suspension movement
    • B60G3/265—Means for maintaining substantially-constant wheel camber during suspension movement ; Means for controlling the variation of the wheel position during suspension movement with a strut cylinder contributing to the suspension geometry by being linked to the wheel support via an articulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D17/00—Means on vehicles for adjusting camber, castor, or toe-in
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/40—Type of actuator
    • B60G2202/42—Electric actuator

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

A geometry control system for a vehicle is provided to adjust a camber angle and a tow angle actively by receiving traveling information of the vehicle and controlling an actuator. A geometry control system for a vehicle comprises a lower arm main body(10), a vehicle body mounting bush connector(20), a geometry bush connector(30), a control unit, an actuator(50), and a ball joint connector(40). The lower arm main body has upper and lower panels. The vehicle body mounting bush connector connects with a vehicle body frame. The geometry bush connector connects with a geometry bush. The control unit controls a camber angle and a tow angle of a wheel by receiving traveling information of the vehicle such as vehicle speed, RPM, wheel speed, and yawing. The actuator is installed in the lower arm main body and receives a signal from the control unit. The ball joint connector, which is coupled with a ball joint, supports the wheel together with an upper arm by mating with a knuckle of the wheel to adjust the camber angle and the tow angle according to operation of the actuator.

Description

자동차의 지오메트리 제어장치{Geometry control system for vehicle}Geometry control system for vehicle

본 발명은 차량의 현가장치에 관한 것으로, 특히 차량의 주행속도, 저마찰 노면이나 급격한 노면상태 변화, 선회시 횡방향의 저항력을 감안하여 캠버 각 및 토우 각을 능동적으로 제어하여 주행안정성을 확보하도록 한 자동차의 지오메트리 제어장치에 관한 것이다.The present invention relates to a suspension device for a vehicle, and particularly, to actively control a camber angle and a toe angle in consideration of a driving speed of a vehicle, a low friction road surface or a sudden change in road conditions, and a resistance in the lateral direction during turning to ensure driving stability. It relates to the geometry control of a vehicle.

일반적으로, 차량의 현가장치는 승차감 및 주행안정성을 도모하기 위한 중요한 장치로써, 주로 차체를 차륜으로부터 안정적으로 지지하면서 차륜으로부터 제공되는 진동을 억제하거나 또는 신속하게 감소시키는 기능을 수행하게 된다.In general, the suspension of the vehicle is an important device for achieving ride comfort and running stability, and mainly serves to stably support the vehicle body from the wheel while suppressing or rapidly reducing the vibration provided from the wheel.

이와 같은 현가장치에는 차륜을 차체에 연결하고 아울러 지지하는 기능을 수행하는 로어암이 사용되는데, 상기 로어암은 개의 단부를 갖도록 구성되며, 또한 각각의 단부에는 차체마운팅부시(A부시)와 지오메트리부시(G부시) 및 볼조인트가 결합되는 차체마운팅부시 커넥터와 지오메트리부시 커넥터 및 볼조인트 커넥터가 일체로 구비된다.In the suspension device, a lower arm is used to connect and support the wheel to the vehicle body, and the lower arm is configured to have four ends, and at each end, a vehicle mounting bushing (A bushing) and a geometric bushing. The body mounting bushing connector, the (G bushing) and the ball joint, the geometry bushing connector and the ball joint connector are integrally provided.

여기서, 상기 차체마운팅부시 및 지오메트리부시는 각각의 결합수단을 통해 차체프레임과 연결되도록 결합되고, 상기 볼조인트는 차륜의 너클과 결합되어 어퍼암과 함께 차륜을 지지하게 된다.Here, the body mounting bushing and the geometry bushing are coupled to the body frame through the respective coupling means, the ball joint is coupled to the knuckle of the wheel to support the wheel with the upper arm.

그런데 토우 인은 자동차 앞바퀴에서 앞쪽이 뒤쪽보다 좁게되도록 경사지게 배치한 것으로, 이것은 앞바퀴에 캠버가 주어져 주행중에 바퀴가 차체의 바깥쪽으로 향하려는 경향, 특히 사이드 슬립현상이 나타나기 때문에 이러한 토우 아웃화 현상을 방지하기 위한 것이다.However, the toe-in is inclined so that the front side of the car is narrower than the rear side, and this is prevented because the camber is given to the front wheel and the wheel tends to move outwards, especially side slip, during driving. It is to.

또한, 토우 인의 각도변화에 따라 자동차 코너링 특성에 변화가 나타나게 되며, 즉 차속을 크게 감소시킨 상태에서 코너링을 해야 하는데 그 이유는 사이드 슬립현상에 의해 차량 코너링시 이론적 회전반경보다 더 크게 나타나게 되기 때문이며 이때에는 토우 인 값을 작게 하고, 가급적 속도를 덜 감속하고도 원활한 코너링을 할 수 있도록 하기 위해서는 토우 인 값을 크게 할 필요가 있다.In addition, a change in the cornering characteristics of the vehicle is caused by the change of the angle of the toe-in. That is, the cornering should be performed in a state in which the vehicle speed is greatly reduced because the side slip phenomenon causes the vehicle to appear larger than the theoretical turning radius when cornering the vehicle. The toe-in value needs to be small, and the toe-in value needs to be increased in order to enable smooth cornering even if the speed is lowered.

상기한 바와 같은 차량의 주행시 타이어에 전후 방향의 충격이 발생되어 이 힘이 너클을 통해 상기 로워암에 전달되면, 로워암은 상기 A점을 축으로 하여 궤적을 그리면서 움직이게 되므로 상기 G점부시에서는 변형이 발생되게 된다.When the vehicle is traveling as described above, when the front and rear shocks are generated to the tire and the force is transmitted to the lower arm through the knuckle, the lower arm moves while drawing the trajectory about the A point as the G point bush. Deformation will occur.

따라서, 상기 타이어의 전후 방향 충격은 대부분 G점부시가 흡수해야 하는 구조인데, 그 흡수범위에는 한계가 있고 단지 상기한 바와 같은 G점부시의 변형에서 발생되는 미소한 감쇠력만이 존재하게 되어 차량의 진동 및 충격흡수성능의 개선에 한계가 있었다.Therefore, the front and rear impact of the tire is a structure that most G point bushes have to absorb, but the absorption range is limited and only a small damping force generated by the deformation of the G point bushes as described above exists. There was a limit to the improvement of vibration and shock absorption performance.

더구나 이러한 기능을 적절히 조절하는, 예컨대 자동차의 선회시에는 승차감 보다 안정성을 확보하는 유연한 제어가 요구되지만 기계식 현가장치로는 이러한 가변적 조건을 만족시키기 어렵다.Moreover, flexible control is required to properly adjust such functions, for example, when turning a car, to ensure stability rather than ride comfort, but mechanical suspensions are difficult to satisfy such variable conditions.

본 발명은 이러한 종래의 문제점을 해결하고자 하는 것으로, 차량의 주행속도, 저마찰 노면이나 급격한 노면 변화 상태, 선회시 횡방향의 저항력을 감안하여 캠버 각 및 토우 각을 능동적으로 제어하여 주행안정성을 확보하고자 자동차의 지오메트리 제어장치를 제공하고자 하는데 그 목적이 있다.The present invention is to solve such a conventional problem, by securing the driving stability by actively controlling the camber angle and toe angle in consideration of the driving speed of the vehicle, low friction road or sudden road change state, the resistance in the lateral direction during turning The purpose of the present invention is to provide a geometry control device for a vehicle.

본 발명의 목적을 달성하기 위한 자동차의 지오메트리 제어장치는, 어퍼판넬과 로워판넬로 구성되어 일체로 용접되는 로워암본체와, 로워암본체의 단부에 각각의 결합수단을 통해 차체프레임과 연결되도록 차체마운팅부시 및 지오메트리부시가 결합되는 차체마운팅부시 커넥터 및 지오메트리부시 커넥터와, 휠 및 차륜에 의하여 차량의 주행정보를 입력받아 차륜의 캠버 각과 토우 각을 제어하는 제어부(ECU)와, 로워암본체 내에 장착하여 제어부의 신호를 받아 작동되는 액츄에이터와, 액츄에이터의 작동에 따라 요동시켜 캠버 각과 토우 각을 조절하도록 차륜의 너클과 결합되어 어퍼암과 함께 차륜을 지지하도록 볼조인트에 결합되는 볼조인트 커넥터로 구성한 것이 본 발명의 기본적인 특징이다.The geometry control apparatus of a vehicle for achieving the object of the present invention, the lower arm body consisting of an upper panel and a lower panel welded integrally, and the vehicle body to be connected to the vehicle body frame through the respective coupling means at the end of the lower arm body Body mounting bushing connector and geometry bushing connector combined with mounting bushing and geometry bushing, control unit (ECU) that receives the driving information of the vehicle by wheel and wheel, and controls the camber angle and toe angle of the wheel, and is mounted in the lower arm body And a ball joint connector coupled to the ball joint to support the wheel together with the upper knuckle of the wheel to adjust the camber angle and the toe angle by oscillating according to the operation of the actuator. It is a basic feature of the present invention.

상기 제어부는 차량의 속도, RPM, 휠스피드, YAWING 등 차량의 주행정보를 센서를 통해서 입력받아 액츄에이터를 제어하므로써 차량의 캠버 각 및 토우 각을 조절하여 저속 선회 및 고속 직진 주행시 범프 토우 각을 작게 하여 직진 주행성을 향상시키고, 고속 선회 및 횡풍시 범프 토우 각을 크게 하여 횡방향 주행 안정성을 향상시키도록 한다.The control unit receives the driving information of the vehicle such as the speed, RPM, wheel speed, YAWING of the vehicle through the sensor and controls the actuator to adjust the camber angle and the toe angle of the vehicle to reduce the bump toe angle during low speed turning and high speed straight driving. In order to improve the straight running performance and to increase the bump toe angle during high speed turning and transverse wind, the transverse driving stability is improved.

상기 액츄에이터는 피스톤을 이용하는 유압 액츄에이터 또는 스크류우를 이용하는 전기모터 액츄에이터를 사용한다.The actuator uses a hydraulic actuator using a piston or an electric motor actuator using a screw.

상기 볼조인트 커넥터의 요동수단은, 볼조인트 커넥터의 중간부를 연장되게 돌출시켜 그 끝단부를 로워암본체에 축핀으로 조립하여 볼조인트 커넥터의 일단은 액츄에이터의 작동에 의하여 가압받도록 하며 타단은 너클을 가압하여 캠버 각과 토우 각을 조절하도록 하며, 작동시 볼조인트 커넥터의 뒤틀림을 방지하도록 로워암본체에 축핀의 회전반경으로 원호형의 안내홈을 형성하고 그 안내홈을 따라 볼조인트 커넥터가 자연스럽게 축핀을 중심으로 회동하도록 안내하는 안내돌기를 볼조인트 커넥터에 돌출형성하며, 상기 안내홈과 안내돌기는 슬라이딩시 간섭하지 않고 뒤틀림을 방지하도록 2곳에 설치하는 것이 바람직하고, 특히 안내돌기의 끝단에 환턱을 형성하여 로워암본체의 표면에 걸리도록 하므로써 더욱 확실한 뒤틀림을 방지할 수가 있다. The oscillating means of the ball joint connector protrudes to extend the middle portion of the ball joint connector, and its end is assembled to the lower arm body by the shaft pin so that one end of the ball joint connector is pressed by the operation of the actuator and the other end presses the knuckle. To adjust the camber angle and toe angle, and to prevent twisting of the ball joint connector during operation, an arc-shaped guide groove is formed on the lower arm body by the rotation radius of the shaft pin, and the ball joint connector naturally follows the shaft pin along the guide groove. Guide protrusions for guiding rotation are formed on the ball joint connector, and the guide grooves and the guide protrusions are preferably installed in two places so as not to be distorted without interference during sliding, and particularly, by forming a lower jaw at the end of the guide protrusion It is possible to prevent the warping more reliably by being caught on the surface of the arm body .

본 발명의 자동차의 지오메트리 제어장치는 차량의 주행속도, 저마찰 노면이 나 급격한 노면 변화 상태, 선회시 횡방향의 저항력을 감안하여 캠버 각 및 토우 각을 능동적으로 제어하여 주행안정성을 확보할 수 있는 효과가 있다.The geometry control apparatus of the vehicle of the present invention can secure the driving stability by actively controlling the camber angle and the toe angle in consideration of the traveling speed of the vehicle, a low friction road or sudden road change state, and resistance in the lateral direction during turning. It works.

이하 본 발명 자동차의 지오메트리 제어장치에 대한 실시예에 대하여 설명하면 다음과 같다.Hereinafter, an embodiment of a geometry control device of an automobile of the present invention will be described.

도면에서 도 1은 본 발명의 요부 구성부를 발췌한 사시도이며, 도 2는 본 발명의 제어과정을 나타낸 플로우챠트도이고, 도 3(a)(b)는 본 발명에 의한 제어전,후의 상태를 나타낸 평면도이며, 도 4는 본 발명의 요부를 발췌한 확대 단면도이고, 도 5는 본 발명에 의한 제어전,후의 상태를 나타낸 토우 각 변화 그래프도이다.1 is a perspective view of the main components of the present invention, Figure 2 is a flow chart showing the control process of the present invention, Figure 3 (a) (b) shows the state before and after the control according to the present invention 4 is an enlarged cross-sectional view showing the main part of the present invention, and FIG. 5 is a tow angle change graph showing states before and after control according to the present invention.

본 발명 자동차의 지오메트리 제어장치는, 도 1과 같이 로워암과 액츄에이터로 구성하여 차륜의 캠버 각과 토우 각을 조절하도록 한다.The geometry control apparatus of the vehicle of the present invention comprises a lower arm and an actuator as shown in FIG. 1 to adjust the camber angle and the toe angle of the wheel.

상기 로워암은, 로워암본체(10), 차체마운팅부시 커넥터(20) 및 지오메트리부시 커넥터(30)와, 볼조인트 커넥터(40)로 구성한다.The lower arm includes a lower arm body 10, a vehicle mounting bushing connector 20, a geometry bushing connector 30, and a ball joint connector 40.

상기 로워암본체(10)는 어퍼판넬과 로워판넬로 구성되어 일체화되게 용접되며, 도면에서는 본 발명의 요부를 발췌하여 설명하기 용이하도록 로워판넬만 도시하였으나 어퍼판넬에도 동일한 구조로 되어 있음을 밝혀둔다.The lower arm body 10 is composed of an upper panel and a lower panel to be integrally welded, and in the drawings, only the lower panel is shown to be easily described by extracting the main part of the present invention, but the upper panel has the same structure. .

상기 로워암본체(10)의 각 단부에는 차체마운팅부시 커넥터(20) 및 지오메트리부시 커넥터(30)와, 볼조인트 커넥터(40)가 설치되어 각각의 결합수단을 통해 차 체프레임과 연결되도록 차체마운팅부시, 지오메트리부시 및 차륜의 너클에 결합된다.The body mounting bushing connector 20 and the geometry bushing connector 30 and the ball joint connector 40 are installed at each end of the lower arm body 10 so as to be connected to the vehicle body frame through respective coupling means. It is coupled to the bush, geometry bushing and wheel knuckles.

상기 볼조인트 커넥터(40)는 차륜의 너클과 결합되어 어퍼암과 함께 차륜을 지지하도록 볼조인트에 결합된다.The ball joint connector 40 is coupled to the knuckle of the wheel and coupled to the ball joint to support the wheel with the upper arm.

상기 액츄에이터(50)는 로워암본체(10) 내에 장착되어 제어부(60)의 신호를 받아 작동되며, 본 발명의 실시예에서는 전기모터 액츄에이터를 적용한다.The actuator 50 is mounted in the lower arm body 10 to operate by receiving a signal from the control unit 60. In the embodiment of the present invention, the electric motor actuator is applied.

상기 제어부(60)는 도 2의 프로우챠트도에서와 같이 휠 및 차륜에 의하여 차량의 속도, RPM, 휠스피드, YAWING 등 차량의 주행정보를 센서를 통해서 입력받아 액츄에이터(50)를 제어하므로써 차량의 캠버 각 및 토우 각을 조절하여 저속 선회 및 고속 직진 주행시 범프 토우 각을 작게 하여 직진 주행성을 향상시키고, 고속 선회 및 횡풍시 범프 토우 각을 크게 하여 횡방향 주행 안정성을 향상시키도록 한다.The control unit 60 receives the driving information of the vehicle, such as the speed, RPM, wheel speed, YAWING, etc. of the vehicle by the wheel and the wheel, as shown in the proch chart of FIG. 2, by controlling the actuator 50. By adjusting the camber angle and the toe angle, the bump toe angle is reduced during low speed turning and high speed straight driving to improve the straight running performance, and the transverse driving stability is improved by increasing the bump toe angle during high speed turning and lateral wind.

도 5는 본 발명의 지오메트리 제어 전, 후상태에 의한 토우 각 변환상태를 나타낸 그래프이다.5 is a graph showing the toe angle conversion state by the before and after geometry control of the present invention.

상기 볼조인트 커넥터(40)는 도 3(a)(b)와 같이 액츄에이터(50)의 작동에 따라 요동시켜 차륜의 캠버 각과 토우 각을 조절하도록 한다.The ball joint connector 40 is oscillated according to the operation of the actuator 50 as shown in FIG. 3 (a) (b) to adjust the camber angle and toe angle of the wheel.

상기 볼조인트 커넥터(40)의 요동수단은, 볼조인트 커넥터(40)의 중간부를 연장되게 돌출시켜 그 끝단부를 로워암본체(10)에 축핀(41)으로 조립하여 볼조인트 커넥터(40)의 일단은 액츄에이터(50)의 피스톤(51) 작동에 의하여 가압받도록 하며 타단은 너클을 가압하여 캠버 각과 토우 각을 조절하도록 한다.The rocking means of the ball joint connector 40 protrudes to extend the middle portion of the ball joint connector 40 so that the end thereof is assembled to the lower arm body 10 by the shaft pin 41 to one end of the ball joint connector 40. Is pressurized by the operation of the piston 51 of the actuator 50 and the other end pressurizes the knuckle to adjust the camber angle and the toe angle.

이때, 볼조인트 커넥터(40)의 작동시 뒤틀림을 방지하도록 로워암본체(10)에 축핀(41)의 회전반경으로 원호형의 안내홈(11)을 형성하고 그 안내홈(11)을 따라 볼조인트 커넥터(40)가 자연스럽게 축핀(41)을 중심으로 회동하도록 안내하는 안내돌기(42)를 볼조인트 커넥터(40)에 돌출형성하며, 상기 안내홈(11)과 안내돌기(42)는 슬라이딩시 간섭하지 않고 뒤틀림을 방지하도록 2곳에 설치하고, 특히 안내돌기(42)의 끝단에 환턱(42a)을 형성하여 로워암본체(10)의 표면에 걸리도록 한다.At this time, in order to prevent distortion during operation of the ball joint connector 40, an arc-shaped guide groove 11 is formed in the lower arm body 10 by the rotation radius of the shaft pin 41, and the ball along the guide groove 11 is formed. A guide protrusion 42 for guiding the joint connector 40 to rotate about the shaft pin 41 naturally protrudes from the ball joint connector 40, and the guide groove 11 and the guide protrusion 42 are slid when sliding. It is installed in two places to prevent distortion without interference, and in particular, to form a round jaw (42a) at the end of the guide projection 42 to be caught on the surface of the lower arm body (10).

도 1은 본 발명의 요부 구성부를 발췌한 사시도이며, 1 is a perspective view extracting the main components of the present invention,

도 2는 본 발명의 제어과정을 나타낸 플로우챠트도이고, 2 is a flowchart illustrating a control process of the present invention.

도 3(a)(b)는 본 발명에 의한 제어전,후의 상태를 나타낸 평면도이며, Figure 3 (a) (b) is a plan view showing a state before and after control according to the present invention,

도 4는 본 발명의 요부를 발췌한 확대 단면도이고, 4 is an enlarged cross-sectional view illustrating the main parts of the present invention;

도 5는 본 발명에 의한 제어전,후의 상태를 나타낸 토우 각 변화 그래프도이다.5 is a tow angle change graph showing states before and after control according to the present invention.

* 도면 중 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

10;로워암본체 11;안내홈10; lower arm main body 11; guide home

20;차체마운팅부시 커넥터 30;지오메트리부시 커넥터20; body mounting bushing connector 30; geometry bushing connector

40;볼조인트 커넥터 41;축핀40; ball joint connector 41; shaft pin

42;안내돌기 50;액츄에이터42; guide protrusion 50; actuator

60;제어부60; control unit

Claims (7)

어퍼판넬과 로워판넬로 구성되어 일체로 용접되는 로워암본체(10)와, 로워암본체(10)의 단부에 각각의 결합수단을 통해 차체프레임과 연결되도록 차체마운팅부시 및 지오메트리부시가 결합되는 차체마운팅부시 커넥터(20) 및 지오메트리부시 커넥터(30)와, 휠 및 차륜에 의하여 차량의 주행정보를 입력받아 차륜의 캠버 각과 토우 각을 제어하는 제어부(60)와, 로워암본체(10) 내에 장착하여 제어부(60)의 신호를 받아 작동되는 액츄에이터(50)와, 액츄에이터(50)의 작동에 따라 요동시켜 캠버 각과 토우 각을 조절하도록 차륜의 너클과 결합되어 어퍼암과 함께 차륜을 지지하도록 볼조인트에 결합되는 볼조인트 커넥터(40)로 구성한 것을 특징으로 하는 자동차의 지오메트리 제어장치.The lower arm body 10, which is composed of an upper panel and a lower panel, and is integrally welded to the end of the lower arm body 10, the body mounting bushing and the geometry bushing coupled to the body frame through respective coupling means. Mounting bush connector 20 and geometry bush connector 30, the control unit 60 for receiving the driving information of the vehicle by the wheel and the wheel to control the camber angle and toe angle of the wheel, and mounted in the lower arm body (10) Actuator 50, which is operated by receiving the signal from the controller 60, and the ball joint to be coupled with the knuckle of the wheel to adjust the camber angle and the toe angle by oscillating according to the operation of the actuator 50 to support the wheel together with the upper arm. Geometry control device of a vehicle, characterized in that consisting of a ball joint connector (40) coupled to. 청구항 1에 있어서, 상기 제어부(60)는 차량의 속도, RPM, 휠스피드, YAWING 등 차량의 주행정보를 센서()를 통해서 입력받아 액츄에이터(50)를 제어하도록 한 것을 특징으로 하는 자동차의 지오메트리 제어장치.The method of claim 1, wherein the control unit 60 controls the actuator 50, characterized in that for controlling the actuator 50 receives the driving information of the vehicle, such as the speed, RPM, wheel speed, YAWING of the vehicle through the sensor (). Device. 청구항 2에 있어서, 상기 액츄에이터(50)는 피스톤을 이용하는 유압 액츄에이터 또는 스크류우를 이용하는 전기모터 액츄에이터 중 어느 한 가지를 사용한 것을 특징으로 하는 자동차의 지오메트리 제어장치.The method according to claim 2, wherein the actuator (50) is a geometry control device for a vehicle, characterized in that using any one of a hydraulic actuator using a piston or an electric motor actuator using a screw. 청구항 1에 있어서, 상기 볼조인트 커넥터(40)의 요동수단은, 볼조인트 커넥터(40)의 중간부를 연장되게 돌출시켜 그 끝단부를 로워암본체(10)에 축핀(41)으로 조립하여 볼조인트 커넥터(40)의 일단은 액츄에이터(50)의 작동에 의하여 가압받도록 하며 타단은 너클을 가압하여 캠버 각과 토우 각을 조절하도록 한 것을 특징으로 하는 자동차의 지오메트리 제어장치.The method of claim 1, wherein the swing means of the ball joint connector 40, the middle portion of the ball joint connector 40 is protruded to extend so that the end is assembled to the lower arm body 10 by the shaft pin 41 to the ball joint connector One end of the 40 is to be pressurized by the operation of the actuator 50, the other end is to control the geometry of the vehicle, characterized in that to press the knuckle to adjust the camber angle and toe angle. 청구항 4에 있어서, 상기 볼조인트 커넥터의 작동시 뒤틀림을 방지하도록 로워암본체(10)에 축핀(41)의 회전반경으로 원호형의 안내홈(11)을 형성하고 그 안내홈(11)을 따라 볼조인트 커넥터(40)가 자연스럽게 축핀(41)을 중심으로 회동하도록 안내하는 안내돌기(42)를 볼조인트 커넥터(40)에 돌출형성한 것을 특징으로 하는 자동차의 지오메트리 제어장치.The method according to claim 4, to form a circular guide groove 11 of the arc of the shaft pin 41 in the lower arm body 10 to prevent distortion during operation of the ball joint connector and along the guide groove 11 The geometry control device of a vehicle, characterized in that the guide protrusion 42 for guiding the ball joint connector 40 to rotate about the shaft pin 41 naturally protruding to the ball joint connector (40). 청구항 5에 있어서, 상기 안내홈(11)과 안내돌기(42)는 슬라이딩시 간섭하지 않고 뒤틀림을 방지하도록 2곳에 설치한 것을 특징으로 하는 자동차의 지오메트리 제어장치. The device of claim 5, wherein the guide grooves 11 and the guide protrusions 42 are installed at two places so as not to interfere with the sliding. 청구항 6에 있어서, 상기 안내돌기(42)의 끝단에 환턱(42a)을 형성하여 로워암본체(10)의 표면에 걸리도록 한 것을 특징으로 하는 자동차의 지오메트리 제어장치.The geometry control apparatus for a vehicle according to claim 6, wherein a circular jaw (42a) is formed at the end of the guide protrusion (42) so as to be caught by the surface of the lower arm body (10).
KR1020070111693A 2007-11-02 2007-11-02 Geometry control system for vehicle KR100857361B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101316163B1 (en) 2007-12-17 2013-10-08 현대자동차주식회사 Apparatus and Method for Controlling Toe of a Vehicle Wheel via Variable Stiffness Bush
KR101339219B1 (en) 2008-10-24 2013-12-09 현대자동차 주식회사 Apparatus for controlling toe-in for vehicle

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JP2007022288A (en) 2005-07-15 2007-02-01 Nissan Motor Co Ltd Strut type front suspension device
KR20070017687A (en) * 2005-08-08 2007-02-13 현대모비스 주식회사 Active Geometry Control Suspension System
JP2007210456A (en) 2006-02-09 2007-08-23 Toyota Motor Corp Vehicle stabilizer system

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980045430A (en) * 1996-12-10 1998-09-15 박병재 Stabilizer Bar Mounting Device and Control Method
JP2007022288A (en) 2005-07-15 2007-02-01 Nissan Motor Co Ltd Strut type front suspension device
KR20070017687A (en) * 2005-08-08 2007-02-13 현대모비스 주식회사 Active Geometry Control Suspension System
JP2007210456A (en) 2006-02-09 2007-08-23 Toyota Motor Corp Vehicle stabilizer system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101316163B1 (en) 2007-12-17 2013-10-08 현대자동차주식회사 Apparatus and Method for Controlling Toe of a Vehicle Wheel via Variable Stiffness Bush
KR101339219B1 (en) 2008-10-24 2013-12-09 현대자동차 주식회사 Apparatus for controlling toe-in for vehicle

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