KR100610096B1 - toe control system of rear wheel - Google Patents

toe control system of rear wheel Download PDF

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Publication number
KR100610096B1
KR100610096B1 KR1020040057190A KR20040057190A KR100610096B1 KR 100610096 B1 KR100610096 B1 KR 100610096B1 KR 1020040057190 A KR1020040057190 A KR 1020040057190A KR 20040057190 A KR20040057190 A KR 20040057190A KR 100610096 B1 KR100610096 B1 KR 100610096B1
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KR
South Korea
Prior art keywords
gear shaft
trailing arm
vehicle
driven gear
wheel
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KR1020040057190A
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Korean (ko)
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KR20060007807A (en
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오영민
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기아자동차주식회사
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Priority to KR1020040057190A priority Critical patent/KR100610096B1/en
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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
    • B60G17/018—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 the use of a specific signal treatment or control method
    • 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
    • B60G17/019—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 the type of sensor or the arrangement thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00—Pivoted suspension arms; Accessories thereof
    • B60G7/001—Suspension arms, e.g. constructional features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/0015—Hubs for driven wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/40—Indexing codes relating to the wheels in the suspensions
    • B60G2200/462—Toe-in/out
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/418—Bearings, e.g. ball or roller bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
    • B60G2400/05—Attitude
    • B60G2400/051—Angle
    • B60G2400/0514—Wheel angle detection
    • B60G2400/05144—Wheel toe
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
    • B60G2400/20—Speed
    • B60G2400/204—Vehicle speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
    • B60G2400/40—Steering conditions
    • B60G2400/41—Steering angle
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

본 발명은 자동차 후륜의 토 조정장치에 관한 것으로, 축방향으로 회전되는 구동기어축(11a)을 구비하고서 트레일링아암(1)의 내부에 고정되도록 설치되는 액츄에이터(11)와, 일단은 상기 구동기어축(11a)과 치합되고 타단은 상기 트레일링아암(1)을 관통하여 외부로 돌출되도록 설치되는 피동기어축(12)과, 상기 트레일링아암(1)으로부터 돌출된 피동기어축(12)의 단부와 일체로 결합되고 좌우측 후륜(W1,W2)의 휠허브(8)가 결합되는 스핀들마운팅브라켓트(13)와, 차속센서(14) 및 조향각센서(15)로부터 신호를 전달받아 상기 액츄에이터(11)의 구동을 제어하는 콘트롤러(16)로 구성되어져, 차량의 선회주행시 선회외륜에 해당하는 차륜이 토인경향이 강한 특성을 갖도록 함으로써 보다 안정된 선회성을 확보할 수 있도록 된 것이다.The present invention relates to a toe adjusting device for a rear wheel of an automobile, comprising: an actuator (11) having a drive gear shaft (11a) rotated in an axial direction and fixed to an interior of a trailing arm (1), and one end of the drive; A driven gear shaft 12 which is engaged with the gear shaft 11a and is provided so as to protrude outward through the trailing arm 1, and a driven gear shaft 12 protruding from the trailing arm 1; The actuator is integrally coupled to the end of the spindle mounting bracket 13 and the vehicle hub sensor 14 and the steering angle sensor 15 to which the wheel hubs 8 of the left and right rear wheels W1 and W2 are coupled. 11) the controller 16 is configured to control the driving of the vehicle, so that the wheel corresponding to the turning outer ring at the time of turning the vehicle has a characteristic of strong toin tendency, thereby ensuring more stable turning characteristics.

Description

자동차 후륜의 토 조정장치{toe control system of rear wheel}Toe control system of rear wheels

도 1은 일반적인 소형자동차의 리어현가장치를 설명하기 위한 사시도,1 is a perspective view for explaining a rear suspension of a typical small vehicle,

도 2는 도 1에 도시된 리어현가장치를 구비한 소형자동차가 좌선회시 후륜의 토 변화를 보여주기 위한 개략적인 개념도,FIG. 2 is a schematic conceptual view illustrating the change of the toe of the rear wheel when the small vehicle having the rear suspension shown in FIG. 1 is left turning;

도 3은 리어현가장치를 차량의 후방에서 바라본 상태로서, 본 발명에 따른 후륜의 토 조정장치를 설명하기 위한 구성도,3 is a view illustrating a rear suspension apparatus as viewed from the rear of a vehicle, and illustrating a toe adjusting apparatus for a rear wheel according to the present invention;

도 4는 도 3의 상태를 위에서 바라본 평면도이다.4 is a plan view from above of the state of FIG. 3.

< 도면의 주요 부분에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>

1 - 트레일링아암 8 - 휠허브1-trailing arm 8-wheel hub

11 - 액츄에이터 11a - 구동기어축11-Actuator 11a-Drive Gear Shaft

12 - 피동기어축 13 - 스핀들마운팅브라켓트12-Driven gear shaft 13-Spindle mounting bracket

14 - 차속센서 15 - 조향각센서14-Vehicle speed sensor 15-Steering angle sensor

16 - 콘트롤러 21 - 베어링16-Controller 21-Bearing

본 발명은 차량이 선회주행을 할 때 후륜 중에서 선회외륜에 해당하는 차륜 의 토 변화를 강제적으로 조정하여 토인(toe-in)경향이 강하도록 함으로써 보다 안정된 선회성을 확보할 수 있도록 하는 자동차 후륜의 토 조정장치에 관한 것이다.According to the present invention, the toe-in tendency is strengthened by forcibly adjusting the toe change of the wheel corresponding to the turning outer ring among the rear wheels when the vehicle is turning. It relates to the soil adjustment device.

일반적으로, 자동차의 현가장치는 주행할 때 노면에서 받는 진동이나 충격을 차체에 직접 전달되지 않도록 하여 차체나 화물의 손상을 방지하고 승차감을 좋게 하는 장치인 바, 그 중에서 토션비임액슬(torsion beam axle)타입이 적용되는 소형자동차의 리어현가장치는 도 1에 도시된 바와 같다.In general, a suspension device of a vehicle is a device that prevents damage to a vehicle body or a cargo and improves ride comfort by preventing vibration or shock received from a road surface directly while driving, among which a torsion beam axle The rear suspension of the small vehicle to which the) type is applied is shown in FIG. 1.

즉, 차체의 길이방향을 따라 배치되는 좌우측의 트레일링아암(1)과, 이 좌우측의 트레일링아암(1)사이를 연결하도록 차체의 횡방향을 따라 배치되는 토션비임액슬(2)과, 이 토션비임액슬(2)의 내부에 설치되어 상기 트레일링아암(1)사이를 연결하는 토션바아(도시않됨)와, 상기 트레일링아암(1)에 용접결합된 스프링시트상에 수직한 방향으로 설치되는 코일스프링(3)과, 상기 트레일링아암(1)에 용접결합된 쇽업소버마운팅브라켓트상에 수직한 방향으로 설치되어 차체와 연결되는 쇽업소버(4)와, 상기 트레일링아암(1)상에 용접결합되면서 좌우측 후륜(W1,W2)의 휠허브(도시않됨)가 일체로 결합되는 스핀들마운팅브라켓트(5)와, 상기 트레일링아암(1)의 전방측 선단에 결합되어 트레일링아암(1)을 차체측으로 결합시키도록 하는 트레일링아암부시(6)등으로 구성된다.That is, the left and right trailing arms 1 arranged along the longitudinal direction of the vehicle body, the torsion beam axles 2 arranged along the transverse direction of the vehicle body so as to connect between the right and left trailing arms 1, and A torsion bar (not shown) installed inside the torsion beam axle (2) and connecting the trailing arm (1) and a spring seat welded to the trailing arm (1) in a vertical direction. A coil spring (3), a shock absorber (4) installed on the shock absorber mounting bracket welded to the trailing arm (1) in a vertical direction and connected to the vehicle body, and on the trailing arm (1). And a spindle mounting bracket 5 to which the wheel hubs (not shown) of the left and right rear wheels W1 and W2 are integrally coupled to each other and coupled to the front end of the trailing arm 1. ), Consisting of a trailing arm bush (6) for coupling to the vehicle body side. do.

여기서, 상기 토션비임액슬(2)은 그 양단이 상기 트레일링아암(1)상에 각각 중첩을 이루도록 배치된 상태에서 용접결합을 통해 장착되어지게 된다.Here, the torsion beam axle (2) is to be mounted through the welding in the state that both ends are arranged to overlap each other on the trailing arm (1).

그러나, 상기와 같은 종래의 리어현가장치는 차량이 선회주행을 할 때 후륜(W1,W2)중에서 선회외륜에 해당하는 차륜은 토아웃(toe-out)경향이 강한 특성을 갖 게 되고, 이와 같은 토아웃 경향에 의해 선회외륜에 해당하는 차륜은 오버 스티어(over steer)의 경향을 갖게 됨으로써, 결국 차량은 선회안정성이 나빠지게 되는 문제점이 있었다.However, in the conventional rear suspension device as described above, the wheels corresponding to the turning outer wheels of the rear wheels W1 and W2 have a strong toe-out tendency when the vehicle is turning. The wheel corresponding to the turning outer ring has a tendency of over steer due to the tendency of the out-out, so that the vehicle has a problem in that the turning stability becomes worse.

일예로서, 도 2에 도시된 바와 같이 차량이 좌측방향으로 선회주행을 할 때 후륜(W1,W2)중에서 선회외륜에 해당하는 차륜(W2)에는 횡방향의 하중(F)이 입력되어지게 된다.For example, as shown in FIG. 2, when the vehicle turns in the left direction, the load F in the lateral direction is input to the wheel W2 corresponding to the turning outer ring among the rear wheels W1 and W2.

이때, 리어현가장치를 구성하는 토션비임액슬(2)은 횡방향 하중(F)에 의해 탄력적으로 휘어지는 변형이 발생하게 되며, 이에 따라 선회외륜에 해당하는 차륜(W2)은 범프 스티어(bump steer)의 현상이 발생되면서 토아웃(toe-out)경향이 강한 특성을 갖게 된다.At this time, the torsion beam axle 2 constituting the rear suspension is elastically bent due to the lateral load (F) occurs, and accordingly the wheel (W2) corresponding to the turning outer ring bump steer (bump steer) As a phenomenon occurs, the toe-out tendency is strong.

따라서, 선회외륜에 해당하는 차륜(W2)은 오버 스티어(over steer)의 경향을 갖게 됨으로써, 결국 차량은 선회안정성이 나빠지게 되는 문제점이 있게 된다.Therefore, the wheel W2 corresponding to the turning outer ring has a tendency of over steer, and thus the vehicle has a problem in that turning stability becomes worse.

이에 본 발명은 상기와 같은 문제점을 해소하기 위해 안출된 것으로, 차량의 진행방향에 따라 후륜의 토 변화를 강제 조정할 수 있도록 구성함으로써, 직진안정성은 물론 선회안정성도 대폭 향상시킬 수 있도록 하는 자동차 후륜의 토 조정장치를 제공함에 그 목적이 있다.Accordingly, the present invention has been made to solve the above problems, by configuring to change the toe change of the rear wheel in accordance with the direction of the vehicle, the linear stability of the rear wheel of the vehicle to significantly improve the straightness stability as well as turning stability The purpose is to provide a soil control device.

삭제delete

상기와 같은 목적을 달성하기 위한 본 발명은, 차체의 횡방향으로 배치되어 양 단부가 코일스프링과 쇽업소버에 의해 차체에 대해 지지되도록 설치되는 토션비임액슬과;
상기 토션비임액슬의 양측 선단에서 차체의 길이방향을 따라 배치되는 좌우측의 트레일링아암;
상기 트레일링아암의 내부에서 구동기어축을 갖추고서 수직한 방향으로 고정 설치되는 액츄에이터;
상기 구동기어축에 일단이 치합되고, 타단이 상기 트레일링아암을 관통하여 외부로 돌출되도록 설치되는 피동기어축;
상기 트레일링아암으로부터 돌출된 상기 피동기어축의 단부와 일체로 결합되고 좌우측 후륜의 휠허브에 결합되는 스핀들마운팅브라켓트 및;
주행중 차속센서 및 조향각센서로부터 차속과 조향각의 변화를 입력받아 상기 액츄에이터의 구동을 제어하는 콘트롤러를 포함하고;
상기 피동기어축은 상기 트레일링아암에 고정되는 베어링을 관통하여 설치되는 것을 특징으로 한다.
이하 본 발명의 실시예를 첨부된 예시도면을 참조로 상세히 설명한다.The present invention for achieving the above object is a torsion beam axle disposed in the transverse direction of the vehicle body is installed so that both ends are supported by the coil spring and the shock absorber to the vehicle body;
Trailing arms on the left and right sides disposed along the longitudinal direction of the vehicle body at both ends of the torsion beam axle;
An actuator fixedly installed in a vertical direction with a drive gear shaft inside the trailing arm;
A driven gear shaft having one end meshed with the drive gear shaft and the other end penetrating the trailing arm to protrude outward;
A spindle mounting bracket integrally coupled to an end of the driven gear shaft protruding from the trailing arm and coupled to a wheel hub of left and right rear wheels;
A controller configured to control the driving of the actuator by receiving a change in the vehicle speed and the steering angle from the vehicle speed sensor and the steering angle sensor while the vehicle is driven;
The driven gear shaft is installed through a bearing fixed to the trailing arm.
Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 3은 본 발명에 따른 후륜의 토 조정장치를 설명하기 위한 구성도이고, 도 4는 도 3의 상태를 위에서 바라본 평면도로서, 종래 구조와 동일한 부위에는 동일한 참조부호를 붙이면서 설명하기로 한다.Figure 3 is a block diagram for explaining the toe adjustment device of the rear wheel according to the present invention, Figure 4 is a plan view of the state of Figure 3 from above, will be described with the same reference numerals to the same parts as the conventional structure.

본 발명에 따라 토션비임액슬(torsion beam axle)타입이 적용되는 소형자동차의 리어현가장치는 도 3에 도시된 바와 같이, 차체의 길이방향을 따라 배치되는 좌우측의 트레일링아암(1)과, 이 좌우측의 트레일링아암(1) 사이를 연결하도록 차체의 횡방향을 따라 배치되는 토션비임액슬(2)과, 이 토션비임액슬(2)의 내부에 설치되어 상기 트레일링아암(1) 사이를 연결하는 토션바아(도시안됨)와, 상기 트레일링아암(1)에 용접결합된 스프링시트상에 수직한 방향으로 설치되는 코일스프링(3)과, 상기 트레일링아암(1)에 용접결합된 쇽업소버마운팅브라켓트상에 수직한 방향으로 설치되어 차체와 연결되는 쇽업소버(4) 등을 포함하여 구성된다.As shown in FIG. 3, a rear suspension device of a small vehicle to which a torsion beam axle type is applied according to the present invention includes a trailing arm 1 on the left and right sides arranged along the longitudinal direction of the vehicle body. A torsion beam axle (2) disposed along the transverse direction of the vehicle body so as to connect between the left and right trailing arms (1), and installed inside the torsion beam axle (2) to connect the trailing arm (1). A torsion bar (not shown), a coil spring 3 installed in a direction perpendicular to the spring seat welded to the trailing arm 1, and a shock absorber welded to the trailing arm 1; It is configured to include a shock absorber (4) and the like installed on the mounting bracket in a vertical direction and connected to the vehicle body.

그리고, 상기와 같이 구성되는 리어현가장치는 도 3과 도 4에 도시된 바와 같이 차량의 진행방향에 따라 후륜의 토를 강제적으로 조정하기 위한 장치를 함께 포함하여 구성된다.The rear suspension device configured as described above includes a device for forcibly adjusting the toe of the rear wheel according to the traveling direction of the vehicle as shown in FIGS. 3 and 4.

즉, 본 발명에 따른 후륜의 토 조정장치는 도시된 바와 같이, 상기 트레일링아암(1)의 내부에서 축방향으로 회전되는 구동기어축(11a)을 갖추고서 수직한 방향으로 고정 설치되는 액츄에이터(11)와, 상기 구동기어축(11a)에 일단이 외접하도록 치합되고 타단이 상기 트레일링아암(1)을 관통하여 외부로 돌출되도록 설치되는 피동기어축(12)과, 상기 트레일링아암(1)으로부터 돌출된 상기 피동기어축(12)의 단부와 일체로 결합되고 좌우측 후륜(W1,W2)의 휠허브(8)가 결합되는 스핀들마운팅브라켓트(13) 및, 주행중 차속센서(14) 및 조향각센서(15)로부터 차속과 조향각의 변화를 입력받아 상기 액츄에이터(11)의 구동을 제어하는 콘트롤러(16)로 구성된다.That is, the toe adjusting device of the rear wheel according to the present invention, as shown, the actuator having a drive gear shaft (11a) rotated in the axial direction in the interior of the trailing arm (1) is fixed fixed in the vertical direction ( 11), a driven gear shaft 12 which is engaged with the drive gear shaft 11a so as to be externally circumscribed and the other end penetrates through the trailing arm 1, and protrudes outward; and the trailing arm 1 Spindle mounting bracket 13 which is integrally coupled with the end of the driven gear shaft 12 protruding from the wheel and coupled with the wheel hub 8 of the left and right rear wheels W1 and W2, and the vehicle speed sensor 14 and the steering angle while driving. The controller 16 is configured to receive a change in the vehicle speed and the steering angle from the sensor 15 to control the driving of the actuator 11.

여기서, 상기 피동기어축(12)은 트레일링아암(1)에 고정되도록 설치된 베어링(21)을 관통하여 설치되어 있어, 상기 피동기어축(12)은 회전시 상기 트레일링아암(1)과 간섭을 회피할 수 있도록 되어 있다.Here, the driven gear shaft 12 is installed through a bearing 21 installed to be fixed to the trailing arm 1, so that the driven gear shaft 12 interferes with the trailing arm 1 during rotation. It is possible to avoid.

따라서, 차량이 좌측방향으로 선회주행을 할 때 후륜(W1,W2)중에서 선회외륜에 해당하는 차륜(W2)은 범프 스티어(bump steer)의 현상이 발생되면서 토아웃(toe-out)경향이 강한 특성을 갖게 되고 동시에 오버 스티어(over steer)의 경향을 갖게 된다.Therefore, when the vehicle turns in the left direction, the wheel W2 corresponding to the turning outer ring among the rear wheels W1 and W2 has a strong toe-out tendency while a phenomenon of bump steer occurs. Characteristics and at the same time tend to be over steer.

이때, 상기 콘트롤러(16)는 차속센서(14)와 조향각센서(15)로부터 각각 입력되는 차속과 조향각의 변화를 매개로 상기 액츄에이터(11)의 구동을 제어하게 된다. 이 결과, 상기 콘트롤러(16)의 제어에 따라 액츄에이터(11)가 구동되면, 일례로 상기 구동기어축(11a)은 도시된 상태에서 시계방향으로 회전되어지며, 피동기어축(12)은 반시계방향으로 회전되어지게 된다.In this case, the controller 16 controls the driving of the actuator 11 based on the change of the vehicle speed and the steering angle input from the vehicle speed sensor 14 and the steering angle sensor 15, respectively. As a result, when the actuator 11 is driven under the control of the controller 16, for example, the drive gear shaft 11a is rotated clockwise in the illustrated state, and the driven gear shaft 12 is counterclockwise. Will be rotated in the direction.

이에 따라, 선회외륜에 해당하는 차륜(W2)은 차량의 전방쪽을 향하는 앞부분이 안쪽방향을 향하도록 각도가 변화됨으로써, 선회외륜은 토인(toe-in)경향이 강한 특성을 갖게 되고 이로 인해 언더 스티어(under steer)의 경향을 갖게 된다.Accordingly, the wheel W2 corresponding to the turning outer ring is changed in angle so that the front portion of the vehicle toward the front of the vehicle is inward, so that the turning outer ring has a strong toe-in tendency and thus under It tends to be under steer.

따라서, 선회주행중인 차량은 보다 안정된 선회성을 확보할 수 있게 된다.Therefore, the vehicle which is turning and running can ensure more stable turning property.

그리고, 차량이 우측방향으로 선회주행을 할 때에는 후륜(W1,W2)중에서 선회외륜에 해당하는 차륜(W1)은 좌측륜에 해당하게 되며, 이때에도 선회외륜에 해당하는 좌륜(W1)은 토인(toe-in)경향이 강한 특성을 갖게 되고 이로 인해 언더 스티어(under steer)의 경향을 갖게 됨으로써, 보다 안정된 선회성을 확보할 수 있게 된다.In addition, when the vehicle is turning in the right direction, the wheel W1 corresponding to the turning outer ring among the rear wheels W1 and W2 corresponds to the left wheel, and at this time, the left wheel W1 corresponding to the turning outer ring is toin ( The toe-in tendency has a strong characteristic, which results in a tendency of under steer, thereby ensuring more stable turnability.

이상 설명한 바와 같이 본 발명에 의하면, 차량의 선회주행시 선회외륜에 해당하는 차륜이 토인경향이 강한 특성을 갖도록 함으로써 보다 안정된 선회성을 확보할 수 있는 효과가 있게 된다.As described above, according to the present invention, the wheel corresponding to the turning outer ring at the time of turning the vehicle has a strong toin tendency, thereby achieving more stable turning characteristics.

Claims (2)

차체의 횡방향으로 배치되어 양 단부가 코일스프링과 쇽업소버에 의해 차체에 대해 지지되도록 설치되는 토션비임액슬(2)과; A torsion beam axle (2) which is disposed in the transverse direction of the vehicle body and is installed such that both ends thereof are supported by the coil spring and the shock absorber against the vehicle body; 상기 토션비임액슬(2)의 양측 선단에서 차체의 길이방향을 따라 배치되는 좌우측의 트레일링아암(1); Left and right trailing arms (1) disposed along the longitudinal direction of the vehicle body at both ends of the torsion beam axle (2); 상기 트레일링아암(1)의 내부에서 구동기어축(11a)을 갖추고서 수직한 방향으로 고정 설치되는 액츄에이터(11); An actuator (11) having a drive gear shaft (11a) fixedly installed in a vertical direction in the trailing arm (1); 상기 구동기어축(11a)에 일단이 치합되고, 타단이 상기 트레일링아암(1)을 관통하여 외부로 돌출되도록 설치되는 피동기어축(12); A driven gear shaft 12 having one end engaged with the drive gear shaft 11a and the other end penetrating the trailing arm 1 to protrude outward; 상기 트레일링아암(1)으로부터 돌출된 상기 피동기어축(12)의 단부와 일체로 결합되고 좌우측 후륜(W1,W2)의 휠허브(8)에 결합되는 스핀들마운팅브라켓트(13) 및; A spindle mounting bracket (13) integrally coupled to an end of the driven gear shaft (12) protruding from the trailing arm (1) and coupled to a wheel hub (8) of left and right rear wheels (W1, W2); 주행중 차속센서(14) 및 조향각센서(15)로부터 차속과 조향각의 변화를 입력받아 상기 액츄에이터(11)의 구동을 제어하는 콘트롤러(16)를 포함하고; A controller (16) for receiving the change in the vehicle speed and the steering angle from the vehicle speed sensor (14) and the steering angle sensor (15) during driving to control the driving of the actuator (11); 상기 피동기어축(12)은 상기 트레일링아암(1)에 고정되는 베어링(21)을 관통하여 설치되는 것을 특징으로 하는 자동차 후륜의 토 조정장치.And said driven gear shaft (12) is installed through a bearing (21) fixed to said trailing arm (1). 삭제delete
KR1020040057190A 2004-07-22 2004-07-22 toe control system of rear wheel KR100610096B1 (en)

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