KR100192379B1 - Suspension control system of semi-trailing arm - Google Patents
Suspension control system of semi-trailing arm Download PDFInfo
- Publication number
- KR100192379B1 KR100192379B1 KR1019960053951A KR19960053951A KR100192379B1 KR 100192379 B1 KR100192379 B1 KR 100192379B1 KR 1019960053951 A KR1019960053951 A KR 1019960053951A KR 19960053951 A KR19960053951 A KR 19960053951A KR 100192379 B1 KR100192379 B1 KR 100192379B1
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- KR
- South Korea
- Prior art keywords
- cross member
- trailing arm
- semi
- hydraulic
- fastened
- Prior art date
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Classifications
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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
- B60G17/0152—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 action on a particular type of suspension unit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
- B60G7/006—Attaching arms to sprung or unsprung part of vehicle, characterised by comprising attachment means controlled by an external actuator, e.g. a fluid or electrical motor
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- 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
- B60G2204/41—Elastic mounts, e.g. bushings
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- 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
- B60G2400/0513—Yaw angle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2500/00—Indexing codes relating to the regulated action or device
- B60G2500/40—Steering
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
- B60G2800/01—Attitude or posture control
- B60G2800/016—Yawing condition
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
- B60G2800/24—Steering, cornering
- B60G2800/246—Understeer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
- B60G2800/90—System Controller type
- B60G2800/96—ASC - Assisted or power Steering control
- B60G2800/962—Four-wheel steering
Abstract
본 발명은 세미 트레일링 아암형 현가제어장치에 관한 것으로, 차체에 크로스 멤버(1)의 양쪽 선단부가 부시(2)를 매개로 회동가능하게 장착되고, 이 크로스 멤버(2)에는 트레일링 아암(3)의 갈라진 양쪽 선단부가 체결됨과 더불어 반대쪽의 다른쪽 선단부는 바퀴(4)에 체결된 구조로 이루어진 세미 트레일링 아암형 현가장치에 있어서, 상기 크로스 멤버(1)는 그 중앙부위가 양단되어 죠인트(5)를 매개로 서로 연결되고, 양단된 각 크로스 멤버는 부시를 매개로 차체에 회동가능하게 체결된 외축(1a)과 이 외축속에 끼워져서 스플라인(6)으로 결합되면서 상기 죠인트(5)에 연결된 내축(1b)으로 이루어지며, 상기 죠인트(5)를 전방향 또는 후방향으로 이동시켜 크로스 멤버(1)가 부시(2)를 매개로 회동되도록 하여 후륜에 조향각이 형성되도록 하는 유압장치와, 요잉센서를 매개로 요잉상태를 감지해서 상기 유압장치에 소정의 제어전류를 인가시키는 유압제어장치를 갖춘 구조로 되어, 차량의 고속선회시에 후륜이 전륜과 같이 조종되도록 하여 전체적으로 언더 스티어링을 경향을 증대시켜 선회조종성을 향상시킬수 있을 뿐만 아니라 직진 주행시에도 요잉을 저지해서 주행안정성을 향상시킬 수 있고, 또 4륜 조향효과로 주차 조종성도 향상되게 하는 효과가 있다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a semi-trailing arm suspension control device, wherein both ends of the cross member (1) are rotatably mounted to the vehicle body via the bush (2), and the cross member (2) has a trailing arm ( In the semi-trailing arm suspension device having a structure in which the two distal ends of 3) are fastened and the other distal end is fastened to the wheels 4, the cross member 1 is joined at both ends of its center. (5) connected to each other, each cross member is connected to the joint (5) while being coupled to the outer shaft (1a) and the spline (6) is fitted into the outer shaft rotatably fastened to the vehicle body via the bushing It is made of a connected inner shaft (1b), the hydraulic device to move the joint (5) in the forward or backward direction so that the cross member (1) is rotated through the bush (2) to form a steering angle on the rear wheel, Yawing A hydraulic control device is provided to sense a yawing state through a sensor and apply a predetermined control current to the hydraulic device.At the same time, the rear wheels are controlled like the front wheels during the high-speed turning of the vehicle, thereby increasing the under steering as a whole. Not only can the steering control be improved, the driving stability can be improved by preventing yawing even when driving in a straight direction, and the steering ability of the parking can be improved by the four-wheel steering effect.
Description
본 발명은 세미 트레일링 아암형 현가제어장치에 관한 것으로, 특히 차량의 고속선회시에 요잉센서를 매개로 차체의 요잉을 감지해서 세미 트레일링 아암을 회동시켜 뒷바퀴에 조향각이 발생되도록 하여 선회 안정성을 향상시킬 수 있도록 된 세미 트레일링 아암형 현가제어장치에 관한 것이다.The present invention relates to a semi-trailing arm suspension control device, in particular, by detecting the yaw of the vehicle body via the yaw sensor during high-speed turning of the vehicle to rotate the semi-trailing arm to generate a steering angle on the rear wheels to improve turning stability. The present invention relates to a semi trailing arm suspension control system.
일반적으로 차량의 현가장치는 차축과 차체를 연결하여 주행중에 차축이 노면으로부터 받는 진동이나 충격을 차체에 직접적으로 전달되지 않도록 제어하여 차체와 화물의 손상을 방지하고 승차감을 좋게 만드는 장치로서 노면으로부터 충격을 완화시키는 섀시 스프링과, 섀시 스프링의 자유 진동을 제어하여 승차감을 좋게 하는 쇽 업소비 및 차량의 롤링을 방지하는 스태빌라이저 등으로 구성된다.In general, the suspension of the vehicle is connected to the axle and the body so that the vibration or shock received from the road surface is not directly transmitted to the body while driving, thereby preventing damage to the body and cargo and improving ride comfort. And a chassis spring for controlling the free vibration of the chassis spring, and a stabilizer for preventing rolling of the vehicle and improving rolling comfort.
그리고 상기 현가장치는 차량의 장착부위에 따라 앞현가장치와 뒤현가장치로 구분되어지고, 상기 뒤현가장치는 평행 리프 스프링형과 코일스프링형의 차축식과, 스윙 액슬형과 트레일링 아암형 및 세미 트레일링 아암형과 다이어고널 링크형의 독립식이 있다.The suspension is divided into front suspension and rear suspension according to the mounting part of the vehicle, and the rear suspension is axle type of parallel leaf spring type and coil spring type, swing axle type, trailing arm type and semi type. There are independent types of trailing arm type and Diagonal link type.
여기서 상기 세미 트레일링 아암형은 트레일링 아암형과 스윙 액슬형의 중간 성격을 가진 현가장치로서 바퀴를 지지하는 아암이 뒤쪽으로 비스듬히 돌출되어 있는 구조로 되어 있고, 제1도는 종래 기술에 따른 세미 트레일링 아암형 현가제어장치를 개략적으로 나타낸다.Here, the semi trailing arm type is a suspension device having an intermediate characteristic between the trailing arm type and the swing axle type, and has a structure in which an arm supporting the wheel protrudes obliquely to the rear, and FIG. 1 is a semi trail according to the prior art. The ring arm type suspension controller is schematically shown.
즉 차체에 크로스 멤버(101)의 양쪽 선단부가 부시(102)를 매개로 회동가능하게 장착되고, 이 크로스 멤버(101)에는 대체로 Y 자 형상을 한 트레일링 아암(103)의 갈라진 양쪽 선단부가 회동가능하게 체결됨과 더불어 반대쪽의 다른쪽 선단부는 바퀴(104)에 체결되며, 상기 트레일링 아암(103)의 상면에는 코일스프링의 한쪽 선단부가 안착되어 지지됨과 더불어 이 코일스프링의 반대쪽 선단부는 차체에 지지된 구조로 되어 있다.That is, both end portions of the cross member 101 are rotatably mounted to the vehicle body via the bush 102, and the cross members 101, which are split at both ends of the trailing arm 103 having a generally Y-shape, are rotated. In addition to the possible fastening, the other end of the opposite side is fastened to the wheel 104, and one end of the coil spring is supported by being seated on the upper surface of the trailing arm 103, and the other end of the coil spring is supported by the vehicle body. Structure.
그런데 상기한 종래의 세미 트레일링 아암형 현가장치는, 차량의 선회시에 횡풍이나 원심력 등으로 인해 예컨대 왼쪽에서 오른쪽 방향으로 측력을 받게되면 바퀴(104)와 크로스 멤버(101)가 반시계 방향으로 회동되어 오버 스티어링 (Over steering) 경향을 나타내게 되는 바, 이 오버 스티어링 경향은 조향각이 적을 경우나 혹은 고속 주행시에는 주행안정성이 나쁜 영향을 미친다고 하는 결점이 있었다.However, in the conventional semi-trailing arm suspension, the wheel 104 and the cross member 101 are rotated counterclockwise when the vehicle is turned from the left to the right, for example, due to lateral wind or centrifugal force when the vehicle is turned. Since the motor is rotated to show an over steering tendency, the over steering tendency has a disadvantage in that driving stability is adversely affected when the steering angle is small or when driving at a high speed.
이에 본 발명은 상기한 결점을 해소하기 위해 안출된 것으로, 차량의 선회시에 후륜이 전륜과 같이 조종되도록 하여 전체적으로 언더 스티어링을 경향을 증대시켜 선회조종성을 향상시킬 수 있을 뿐만 아니라 직진 주행시에도 요잉을 저지해서 주행안정성을 향상시킬 수 있도록 된 세미 트레일링 아암형 현가제어장치를 제공함에 그 목적이 있다.Accordingly, the present invention has been made to solve the above-mentioned drawback, and the rear wheels are controlled like the front wheels when the vehicle is turning, thereby increasing the overall understeering tendency and improving the steering control as well as yawing even when driving straight. It is an object of the present invention to provide a semi-trailing arm suspension control device capable of preventing and improving driving stability.
제1도는 종래 기술에 따라 세미 트레일링 아암이 크로스 멤버에 장착된 상태의 평면도.1 is a plan view of a semi trailing arm mounted on a cross member according to the prior art;
제2도는 본 발명에 따른 세미 트레일링 아암형 현가제어장치의 개략적인 구성도.2 is a schematic configuration diagram of a semi trailing arm suspension control device according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 크로스 멤버 2 : 부시1: cross member 2: bush
3 : 트레일링 아암 4 : 바퀴3: trailing arm 4: wheel
5 : 조인트 6 : 스플라인5: joint 6: spline
7 : 유압실린더 8 : 제어밸브7: hydraulic cylinder 8: control valve
9 : 요잉센서9: yawing sensor
상기한 바의 목적을 달성하기 위한 본 발명은, 차체에 크로스 멤버의 양쪽 선단부가 부시를 매개로 회동가능하게 장착되고, 이 크로스 멤버에는 트레일링 아암이 갈라진 양쪽 선단부가 체결됨과 더불어 반대쪽의 다른쪽 선단부는 바퀴에 체결된 구조로 이루어진 세미 트레일링 아암형 현가장치에 있어서, 상기 크로스 멤버의 중앙부위가 양단되어 죠인트를 매개로 서로 연결되고, 양단된 각 크로스 멤버는 부시를 매개로 차체에 회동가능하게 체결된 외축과 이 외축속에 끼워져서 스플라인으로 결합되면서 상기 죠인트에 연결된 내축으로 이루어지며, 상기 죠인트를 전방향 또는 후방향으로 이동시켜 크로스 멤버가 부시를 매개로 회동되도록하여 후륜에 조향각이 형성되도록 하는 유압장치와, 요잉센서를 매개로 요잉상태를 감지해서 상기 유압장치에 소정의 제어전류를 인가시키는 유압제어장치를 갖춘 구조로 되어 있다.The present invention for achieving the above object, the front end of the cross member on both sides is rotatably mounted via the bush, the cross member is coupled to the other end opposite the trailing arm is divided both ends of the trailing arm The tip portion is a semi-trailing arm suspension having a structure that is fastened to the wheel, the center portion of the cross member is both ends connected to each other via a joint, each cross member can be rotated to the vehicle body through the bush The outer shaft is fastened to the outer shaft and is coupled to the spline and is coupled to the inner shaft connected to the joint. The joint is moved forward or backward to allow the cross member to pivot through the bush so that a steering angle is formed at the rear wheel. The hydraulic device to detect the yaw state through the yaw sensor It has a structure with a hydraulic control device which applies a predetermined control current.
이하 본 발명의 실시예를 첨부된 예시도면을 참조로 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
제2도는 본 발명에 따른 세미 트레일링 아암형 현가제어장치의 개략적인 구성도인 바, 즉 차체에 크로스 멤버(1)의 양쪽 선단부가 부시(2)를 매개로 회동가능하게 장착되고, 이 크로스 멤버(1)에는 대체로 Y 자 형상을 한 트레일링 아암(3)의 갈라진 양쪽 선단부가 회동가능하게 체결됨과 더불어 반대쪽이 다른쪽 선단부는 바퀴(4)에 체결되어 있다.2 is a schematic configuration diagram of a semi-trailing arm suspension control device according to the present invention, that is, both end portions of the cross member 1 are rotatably mounted on the vehicle body via the bush 2. The member 1 is rotatably fastened at both ends of the trailing arm 3 having a generally Y-shape, and the other end is fastened to the wheel 4 on the opposite side.
여기서 상기 크로스 멤버(1)는 그 중앙부위가 양단되어 죠인트(5)를 매개로 서로 연결되고, 양단된 각 크로스 멤버는 부시를 매개로 차체에 회동가능하게 체결된 외축(1a)과 이 외축속에 끼워져서 스플라인(6)으로 결합되면서 상기 죠인트(5)에 연결된 내축(1b)으로 이루어지며, 상기 죠인트(5)를 전방향 또는 후방향으로 이동시켜 크로스 멤버(1)가 부시(2)를 매개로 회동되도록 하여 후륜에 조향각이 형성되도록 하는 유압장치와, 요잉센서를 매개로 요잉상태를 감지해서 상기 유압장치에 소정의 제어전류를 인가시키는 유압제어장치를 갖춘 구조로 되어있다.In this case, the cross member 1 is connected to each other via a joint 5 at both ends thereof, and each cross member at both ends is connected to the outer shaft 1a rotatably fastened to the vehicle body via a bush and the outer shaft speed. It is made of an inner shaft (1b) connected to the joint (5) while being coupled to the spline (6), the cross member (1) through the bush (2) by moving the joint (5) forward or backward The hydraulic device is configured to rotate the engine to the steering wheel so that the steering angle is formed on the rear wheel, and the hydraulic control device detects the yawing state through the yawing sensor and applies a predetermined control current to the hydraulic device.
즉 상기 유압장치는 상기 죠인트 (5)의 전방 및 후방에서 일체로 연결된 유압 실린더(7)와, 이 유암실린더(7)에 펌프에서 펌핑된 압유를 선택적으로 공급하여 죠인트를 전방 또는 후방으로 이동시키는 제어밸브(8)를 갖춘 구조로 되어 있다.That is, the hydraulic device selectively supplies the hydraulic cylinder 7 integrally connected at the front and the rear of the joint 5 and the hydraulic oil pumped from the pump to the oil cylinder 7 to move the joint forward or backward. The control valve 8 has a structure.
그리고 상기 유압제어장치는 요잉센서(9)를 매개로 요잉상태를 감지해서 상기 제어밸브(8)에 전류를 인가시키는 콘트롤러 (ECU) 를 갖춘 구조로 되어 있다.The hydraulic control device has a structure (ECU) for detecting a yawing state through the yawing sensor 9 and applying a current to the control valve 8.
이에 따라 차량의 고속선회시에 상기 콘트롤러는 요잉센서를 매개로 요잉상태를 감지함과 더불어 이 감지된 상태가 규정이상일 경우에는 상기 제어밸브(8)에 제어전류를 인가시키게 되고, 이에 따라 제어밸브를 통해 유압펌프에서 펌핑된 압유가 어느 한쪽 실린더로 선택적으로 공급되어 죠인트를 전방향 또는 후방향으로 밀어주게 된다.Accordingly, the controller detects the yawing state through the yawing sensor during the high-speed turning of the vehicle, and when the detected state is higher than the prescribed level, the controller applies a control current to the control valve 8, thereby controlling the control valve. The hydraulic oil pumped from the hydraulic pump is selectively supplied to either cylinder to push the joint forward or backward.
상기와 같이 조인트가 어느 한쪽 방향으로 밀려지게 되면, 크로스 멤버가 부시를 중심으로 회동되면서 신장되거나 수축됨과 더불어 이 크로스 멤버에 연결된 바퀴도 회동되어 조향각이 형성되게 되어, 차량의 고속선회시에 코너링력의 조기생성으로 선횡안정성을 향상시키게 된다.As described above, when the joint is pushed in either direction, the cross member is rotated about the bush and is stretched or contracted, and the wheels connected to the cross member are also rotated to form a steering angle. Early generation improves lateral stability.
또 상기와 같이 바퀴가 회전되면 4륜 조향의 효과를 얻을 수 있게 되고, 이에 따라 주차 조작성도 향상시킬 수 있게 되는 것이다.In addition, if the wheel is rotated as described above it is possible to obtain the effect of the four-wheel steering, thereby improving the parking operability.
이상 설명한 바와 같이 세미 트레일링 아암형 현가제어장치에 의하면, 차량의 고속선회시에 후륜이 전륜과 같이 조종되도록 하여 전체적으로 언더 스티어링을 경향을 증대시켜 선회조종성을 향상시킬수 있을 뿐만 아니라 직진 주행시에도 요잉을 저지해서 주행안정성을 향상시킬 수 있고, 또 4륜 조향효과로 주차 조종성도 향상되게 하는 효과가 있다.As described above, according to the semi-trailing arm suspension control device, the rear wheels are controlled like the front wheels during the high-speed turning of the vehicle, thereby increasing the understeering as a whole, thereby improving turning maneuverability and preventing yawing even when driving straight. Therefore, the driving stability can be improved, and the parking controllability is also improved by the four-wheel steering effect.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960053951A KR100192379B1 (en) | 1996-11-14 | 1996-11-14 | Suspension control system of semi-trailing arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960053951A KR100192379B1 (en) | 1996-11-14 | 1996-11-14 | Suspension control system of semi-trailing arm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19980035576A KR19980035576A (en) | 1998-08-05 |
| KR100192379B1 true KR100192379B1 (en) | 1999-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019960053951A KR100192379B1 (en) | 1996-11-14 | 1996-11-14 | Suspension control system of semi-trailing arm |
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| Country | Link |
|---|---|
| KR (1) | KR100192379B1 (en) |
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1996
- 1996-11-14 KR KR1019960053951A patent/KR100192379B1/en not_active IP Right Cessation
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| Publication number | Publication date |
|---|---|
| KR19980035576A (en) | 1998-08-05 |
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