KR200150746Y1 - Automatic axle geometry control system of leaf spring - Google Patents

Automatic axle geometry control system of leaf spring Download PDF

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Publication number
KR200150746Y1
KR200150746Y1 KR2019950022299U KR19950022299U KR200150746Y1 KR 200150746 Y1 KR200150746 Y1 KR 200150746Y1 KR 2019950022299 U KR2019950022299 U KR 2019950022299U KR 19950022299 U KR19950022299 U KR 19950022299U KR 200150746 Y1 KR200150746 Y1 KR 200150746Y1
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South Korea
Prior art keywords
leaf spring
motor
rack
bush
shaft
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KR2019950022299U
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Korean (ko)
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KR970010202U (en
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이기호
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정몽규
현대자동차주식회사
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Priority to KR2019950022299U priority Critical patent/KR200150746Y1/en
Publication of KR970010202U publication Critical patent/KR970010202U/en
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Publication of KR200150746Y1 publication Critical patent/KR200150746Y1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00Resilient 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
    • B60G17/02Spring characteristics, e.g. mechanical springs and mechanical adjusting means
    • B60G17/023Spring characteristics, e.g. mechanical springs and mechanical adjusting means the mechanical spring being a leaf spring
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/02Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only
    • B60G11/10Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle
    • B60G11/107Sliding or rolling mountings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00Indexing codes relating to suspension types
    • B60G2200/40Indexing codes relating to the wheels in the suspensions
    • B60G2200/46Indexing codes relating to the wheels in the suspensions camber angle

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

Abstract

본 고안은 차량의 뒷차축 현가장치인 판스프링의 액슬 지오머트리 자동조절장치에 관한 것이다.The present invention relates to an axle geometry automatic adjustment device of a leaf spring, which is a rear axle suspension of a vehicle.

본 고안은 아이부를 하중변동에 따라 높이조절하여 액슬 지오머트리를 변경하므로서 부시에 가해지는 충격을 감소시켜 승차감을 향상시키고 스티어를 조정하여 조종안정성을 향상시키기 위하여, 상하방향으로 슬롯이 형성되고 일면에 랙면(9)이 형성되는 브래킷(1, 2)을 차체에 고정하고, 상기 랙면(9)을 따라 상하운동 할 수 있는 피동기어(10)의 축(3)에 부시(11)와 판스프링의 아이부(12)를 축설치하며, 상기 피동기어(1)는 정역회전하는 모터(5)의 구동력으로 상하직선운동할 수 있는 이동랙(13)의 상하운동에 따라 회전케 하여 상기 아이부(12)가 실질적으로 상하운동할 수 있게 하고, 상기 모터(5)의 제어는 판스프링의 1번판(4) 중앙에 캠버변량 감지 가능한 센서(14)의 입력신호를 읽어 설정값에 따라 출력하는 전자제어유니트(6)의 출력신호를 따르도록 한 것이다.The present invention changes the axle geometry by adjusting the height of the eye part according to the load variation, thereby reducing the impact on the bush to improve ride comfort and adjusting the steer to improve steering stability. The brackets 1 and 2 having the rack surface 9 formed thereon are fixed to the vehicle body, and the bush 11 and the leaf springs are formed on the shaft 3 of the driven gear 10 which can move up and down along the rack surface 9. The child part 12 of the shaft, wherein the driven gear 1 is rotated in accordance with the vertical motion of the movable rack 13 which can be moved up and down linearly by the driving force of the motor (5) in forward and reverse rotation to the eye part (12) can be moved up and down substantially, and the control of the motor (5) is to read the input signal of the camber variable sensing sensor 14 in the center of the first plate (4) of the leaf spring to output according to the set value To follow the output signal of the electronic control unit (6). A.

Description

판스프링의 액슬 지오머트리 자동조절장치Axle Geometry Automatic Control of Leaf Spring

제1도는 본 고안의 실시예의 분해사시도.1 is an exploded perspective view of an embodiment of the present invention.

제2도는 그 결합사시도.2 is a perspective view of the combination.

제3도는 본 고안의 1번판 설명도.3 is an explanatory diagram of the first edition of the present invention.

제4도는 본 고안의 작용설명도.4 is an explanatory view of the operation of the present invention.

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

1 : 외축 브래킷 2 : 내측 브래킷1: Outer Bracket 2: Inner Bracket

3 : 피동축 4 : 1번판3: driven shaft 4: 1st edition

5 : 모터 6 : 전자제어유니트5: motor 6: electronic control unit

7, 8 : 슬롯 9: 랙면7, 8: slot 9: rack side

10 : 피동기어 11 : 부시10: driven gear 11: bush

12 : 아이부 13 : 이동랙12: Ibu 13: moving rack

14 : 센서 16 : 구동기어14 sensor 16 drive gear

본 고안은 차량의 뒷차축 현가장치인 판스프링 액슬 지오머트리 자동조절장치에 관한 것이다.The present invention relates to a leaf spring axle geometry control device that is the rear axle suspension of a vehicle.

일반적으로 소형트럭의 경우는 공차 및 적차 상태에 따라 하중변동량이 커서 하중변동에 따른 승차감과 조종안정성이 나빠지는 결과를 초래하고 있다.In general, in the case of small trucks, the load variation is large according to the tolerance and the loading condition, resulting in poor riding comfort and maneuvering stability.

다시 말해 판스프링은 셔클 반대쪽의 아이부에 가해지는 하중이 클 때 언더 스티어로 되고 작을 때 오버 스티어로 되는 경향이 있으며 이에 따라 승차감도 바뀌는데, 특히 하중이 크게 작용할 때에는 차량 롤링시 1번판에 의하여 아이부내에 있는 부시에 전후력에 의한 충격이 크기 때문에 바운스, 피치, 롤을 포함하는 라이드(Ride)가 저감되는 것으로 나타난다.In other words, the leaf spring tends to be understeer when the load on the opposite side of the shroud is large and oversteer when it is small, and the ride comfort also changes, especially when the load is large. Ride including bounce, pitch, and roll appears to be reduced because the impact of the front and back forces on the bush in the part is large.

따라서 하중변동이 있을 때 그에 상응하는 스티어로 적절히 조정될 필요가 있고 부시에 작용하는 충격을 감소시킬 필요가 있는 것이다.Therefore, when there is a load variation, it needs to be properly adjusted to the corresponding steer and to reduce the impact on the bush.

본 고안의 목적은 아이부를 하중변에 따라 높이조절하여 액슬 지오머트리를 변경하므로서 부시에 가해지는 충격을 감소시켜 승차감을 향상키고 스티어를 조정하여 조종안정성을 향상시키고자 하는데 있는 것이다.The purpose of the present invention is to improve the riding comfort by reducing the impact on the bush by changing the axle geometry by adjusting the height of the eye part according to the load side, and improving steering stability by adjusting the steering.

본 고안은 상기 목적을 달성하기 위하여, 상하방향으로 슬롯이 형성되고 일면에 랙면이 형성되는 브래킷을 차체에 고정하고, 상기 랙면을 따라 상하운동 할 수 있는 피동기어의 축에 부시와 판스프링의 아이부를 축설치하며, 상기 피동기어는 정역회전하는 모터의 구동력으로 상하직선운동 할 수 있는 이동랙의 상하운동에 따라 회전케 하여 상기 아이부가 실질적으로 상하운동 할 수 있게 하고, 상기 모터의 제어는 판스프링의 1번판 중앙에 캠버변량 감지 가능한 센서의 입력신호를 읽어 설정값에 따라 출력하는 전자제어유니트의 출력신호에 따르도록 한 것이다.In order to achieve the above object, the present invention secures a bracket having a slot formed in a vertical direction and a rack surface formed on one surface to a vehicle body, and an eye of a bush and a leaf spring on an axis of a driven gear capable of vertically moving along the rack surface. Shaft portion is installed, the driven gear is rotated in accordance with the vertical movement of the movable rack which can be moved up and down linearly by the driving force of the forward and reverse motor to enable the eye portion to move substantially up and down, the control of the motor It reads the input signal of the sensor capable of detecting the camber variable in the center of the first plate of the spring and outputs it according to the output signal of the electronic control unit.

이하 본 고안의 실시예를 도면에 의하여 설명한다.Hereinafter, embodiments of the present invention will be described with reference to the drawings.

제1도 및 제2도에 있어서 부호1은 외측 브래킷, 2는 내측 브래킷, 3은 피동축, 4는 1번판, 5는 모터, 6은 전자제어유니트이다.1 and 2, reference numeral 1 denotes an outer bracket, 2 an inner bracket, 3 a driven shaft, 4 a first plate, 5 a motor, and 6 an electronic control unit.

외측 브래킷(1)은 차체에 고정되고 중간에 상하방향으로 슬롯(7)이 형성된 것으로 내측 브래킷(2)과 근접되게 위치한다.The outer bracket 1 is fixed to the vehicle body and is positioned in close proximity to the inner bracket 2 with slots 7 formed in the middle in the vertical direction.

내측 브래킷(2)은 차체에 고정되는 것으로서 중간에 상하방향으로 슬롯(8)이 형성되어 있고 이 슬롯(8)의 일측에는 랙면(9)이 형성되어 있다.The inner bracket 2 is fixed to the vehicle body, and the slot 8 is formed in the middle in the vertical direction, and the rack surface 9 is formed at one side of the slot 8.

상기 랙면(9)에는 피동축(3)에 축설치된 피동기어(10)가 랙면(9)을 따라 상하이동 가능하게 맞물려 있다.A driven gear 10 axially mounted on the driven shaft 3 is engaged with the rack surface 9 so as to be movable along the rack surface 9.

피동축(3)에는 부시(11)가 끼워지고 이 부시(11)는 1번판(4)의 아이부(12)에 끼워지는 바 이렇게 피동축(3)에 끼워진 부시(11)와 아이부(12)는 외측 브래킷(1)와 내측 브래킷(2) 사이에 상하운동 가능하게 설치된다.The bush 11 is fitted to the driven shaft 3, and the bush 11 is fitted to the eye portion 12 of the first plate 4. Thus, the bush 11 and the eye portion fitted to the driven shaft 3 are thus fitted. 12 is installed between the outer bracket 1 and the inner bracket 2 so as to be able to move up and down.

상기한 피동기어(10)에는 이동랙(13)이 상하직선운동 할 수 있도록 맞물려 있는 바 이 이동랙(13)은 내측 브래킷(2) 안쪽에서 내측 브래킷(2)의 랙면(9)과 대향되도록 위치한다.The movable rack 13 is engaged with the driven gear 10 so that the movable rack 13 can be moved up and down linearly so that the movable rack 13 faces the rack surface 9 of the inner bracket 2 inside the inner bracket 2. Located.

1번판(4)은 상기한 바와 같이 부시(11)와 함께 그 아이부(12)가 피동축(3)에 상하운동 가능하게 설치된 것으로서 중앙상면에는 제3도에서 보는 바와 같이 아이부(12)와 아이부(12')간의 중심선과 중앙상면 간의 높이를 나타내는 판스프링의 캠버e를 측정할 수 있는 센서(14)가 설치되어 있다.As described above, the first plate 4 is provided with the bush 11 and the eye portion 12 so as to be able to vertically move on the driven shaft 3, and the eye portion 12 as shown in FIG. The sensor 14 which can measure the camber e of the leaf spring which shows the height between the center line between the eye part 12 ', and the center upper surface is provided.

모터(5)는 정역회전 가능한 것으로서 축(15)에 구동기어(16)가 설치되어 있고 이 구동기어(16)는 이동랙(13)과 맞물려 있다.The motor 5 is capable of forward and reverse rotation, and the drive gear 16 is provided in the shaft 15, and the drive gear 16 is engaged with the moving rack 13.

상기 축(15)에는 모터(5)가 정지했을 때 회전을 방지하기 위한 2중 래칫 장치가 부속적으로 설치되어야 한다. 이것은 2개의 래칫휠에 2개의 래칫폴이 서로 반대쪽에서 잡도록 하는 것이 바람직한 것이다.The shaft 15 should be provided with a double ratchet device for preventing rotation when the motor 5 is stopped. It is desirable to have two ratchet poles on two ratchet wheels held on opposite sides of each other.

상기 모터(5)는 전자제어유니트(6)의 출력신호에 따라 일정시간 정회전 또는 역회전하는 것으로서, 전자제어유니트(6)는 센서(14)가 판스프링의 캠버변량 Δe을 감지하여 신호입력되면 이 입력값을 분석하고 이미 설정된 값과 비교 연산하여 출력값이 정해지면 그 출력신호를 모터(5)에 내보내도록 한 것이다.The motor 5 rotates forward or reverse for a predetermined time according to the output signal of the electronic control unit 6, and the electronic control unit 6 inputs a signal by sensing the camber variable Δe of the leaf spring. If the output value is determined by analyzing the input value and comparing with the already set value, the output signal is sent to the motor 5.

따라서 판스프링의 아이부(12,12')에 하중이 크게 걸려 판스프링의 캠퍼가 작아지면 이를 센서(14)가 감지하여 전자제어유니트(6)에 보내고 전자제어유니트(6)는 적정한 출력값으로 보정된 출력신호를 모터(5)에 출력한다.Therefore, when the load on the eye parts 12 and 12 'of the leaf spring is large, and the camper of the leaf spring becomes small, the sensor 14 detects this and sends it to the electronic control unit 6, so that the electronic control unit 6 has an appropriate output value. The corrected output signal is output to the motor 5.

이에 따라 모터(5)는 정회전하여 이동랙(13)은 올라가고 피동축(3)도 랙면(9)을 따라 올라가므로 1번판(4)의 아이부(12)도 상승한다.Accordingly, the motor 5 rotates forward and the moving rack 13 rises, and the driven shaft 3 also rises along the rack surface 9, so that the eye portion 12 of the first plate 4 also rises.

이렇게 되면 제4도와 같이 언더 스티어 US에서 뉴트럴 스티어 NS 또는 오버 스티어 OS 쪽으로 핸들링 성능이 주어지도록 변화한다.This changes to give handling performance from the understeer US to the neutral steer NS or oversteer OS as shown in FIG.

반대로, 판스프링의 아이부(12, 12')에 하중이 작게 걸리면 센서(14)의 입력신호를 받는 전자제어유니트(6)가 역회전신호를 모터(5)에 출력하여 이동랙(13)과 피동축(3)이 내려오므로 아이부(12)가 하강하여 오버 스티어 OS에서 뉴트럴 스티어 NS 또는 언더 스티어 US 쪽으로 핸들링 성능이 주어지두록 변화한다.On the contrary, when the loads are applied to the eye parts 12 and 12 'of the leaf springs, the electronic control unit 6 which receives the input signal of the sensor 14 outputs the reverse rotation signal to the motor 5 to move the movable rack 13. Since the driven shaft 3 is lowered, the eye part 12 is lowered so that the handling performance is given to the neutral steering NS or the under steering US in the oversteer OS.

특히 전술한 바와 같이 오버 스티어 OS로 변화될 때에는 부시(11)에 가해지는 충격이 보정전보다 완화되므로 전후력 완충효과가 수반되어 액슬 지오머트리의 보정에 따른 효과와 함께 승차감을 향상시키는 효과가 있는 것이다.In particular, as described above, when the oversteer OS is changed, the impact applied to the bush 11 is alleviated compared to before the correction, so that the front and rear force buffering effect is accompanied, thereby improving the riding comfort along with the effect of the axle geometry correction. will be.

다시 말해 본 고안은 아이부를 하중변동에 따라 높이조절하므로서 액슬 지오머트리를 변경하게 되고 이에 따라 부시에 가해지는 충격을 감소시켜 승차감을 향상시키고 스티어를 자동으로 조정하여 조종안정성을 향상시키게 되는 것이다.In other words, the present invention changes the axle geometry by adjusting the height of the eye part according to the load variation, thereby reducing the impact on the bush, thereby improving the riding comfort and automatically adjusting the steer to improve the steering stability.

Claims (1)

상하방항으로 슬롯이 형성되고 일면에 랙면이 형성된 브래킷과, 상기 브래킷의 슬롯을 따라 상하이동 가능하고 일측에 상기 랙면을 따라 상하이동 가능한 피동기어가 축설치된 피동축과, 상기 피동축에 부시와 함께 아이부가 축설치된 1번판과, 상기 1번판 중앙에서 판스프링의 켐버변량을 감지하는 센서와, 상기 센서의 입력신호를 분석하여 설정값과 연산하고 출력하는 전자제어유니트와, 상기 전자제어유니트의 출력신호에 따라 정역회전 가능하고 구동기어가 축설치된 모터 및 상기 모터의 회전운동을 직선운동으로 변환하여 상기 피동축에 구동력을 전달할 수 있는 이동랙으로 구성된 판스프링의 액슬 지오머트리 자동조절장치.A bracket having a slot formed in a vertical direction and having a rack surface on one side thereof, a driven shaft capable of being movable along a slot of the bracket and being movable along one side of the rack on one side thereof, and a bush on the driven shaft. The first plate with the eye portion shaft-mounted, a sensor for detecting the camber variation of the leaf spring in the center of the first plate, an electronic control unit for analyzing and outputting a set value by analyzing the input signal of the sensor, and the output of the electronic control unit An axle geometry automatic adjustment device for a leaf spring comprising a motor capable of forward and reverse rotation according to a signal, and a movable rack configured to transfer a driving force to the driven shaft by converting a motor with a drive gear and a rotational motion of the motor into a linear motion.
KR2019950022299U 1995-08-25 1995-08-25 Automatic axle geometry control system of leaf spring KR200150746Y1 (en)

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KR2019950022299U KR200150746Y1 (en) 1995-08-25 1995-08-25 Automatic axle geometry control system of leaf spring

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KR2019950022299U KR200150746Y1 (en) 1995-08-25 1995-08-25 Automatic axle geometry control system of leaf spring

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KR200150746Y1 true KR200150746Y1 (en) 1999-07-01

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KR20020052595A (en) * 2000-12-26 2002-07-04 류정열 Automobile Suspension System

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