KR20040046726A - apparatus for steering wheel of vehicle - Google Patents

apparatus for steering wheel of vehicle Download PDF

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Publication number
KR20040046726A
KR20040046726A KR1020020074726A KR20020074726A KR20040046726A KR 20040046726 A KR20040046726 A KR 20040046726A KR 1020020074726 A KR1020020074726 A KR 1020020074726A KR 20020074726 A KR20020074726 A KR 20020074726A KR 20040046726 A KR20040046726 A KR 20040046726A
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KR
South Korea
Prior art keywords
steering wheel
vibration
hydraulic pressure
shimmy
vehicle
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KR1020020074726A
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Korean (ko)
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KR100471896B1 (en
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조재성
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현대자동차주식회사
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Priority to KR10-2002-0074726A priority Critical patent/KR100471896B1/en
Publication of KR20040046726A publication Critical patent/KR20040046726A/en
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Publication of KR100471896B1 publication Critical patent/KR100471896B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D7/00—Steering linkage; Stub axles or their mountings
    • B62D7/22—Arrangements for reducing or eliminating reaction, e.g. vibration, from parts, e.g. wheels, of the steering system
    • B62D7/222—Arrangements for reducing or eliminating reaction, e.g. vibration, from parts, e.g. wheels, of the steering system acting on the steering wheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
    • B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
    • B62D1/04—Hand wheels
    • B62D1/08—Spokes, e.g. resilient
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/30—Sensors
    • B60Y2400/303—Speed sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2410/00—Constructional features of vehicle sub-units
    • B60Y2410/102—Shaft arrangements; Shaft supports, e.g. bearings

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)

Abstract

PURPOSE: A steering wheel device of a vehicle is provided to change steering wheel torsional vibration mode frequency by varying an inertia moment characteristic of a steering wheel. CONSTITUTION: A steering wheel device of a vehicle has a vehicle speed sensor(110) and a steering wheel spoke(150). The steering wheel device comprises a control part(120), a hydraulic pressure generation part(130), and a shimmy vibration improvement part(160) mounted to the steering wheel spoke. The control part compares the vehicle speed sensed from the vehicle speed sensor with predetermined vehicle speed, varies steering wheel torsional vibration frequency according to the compared result, and outputs a control signal to improve shimmy vibration. The hydraulic pressure generation part generates hydraulic pressure according to the control signal output from the control part. The shimmy vibration improvement part improves shimmy vibration by varying the steering wheel torsional vibration frequency according to the hydraulic pressure generated from the hydraulic pressure generation part.

Description

차량의 스티어링휠장치{apparatus for steering wheel of vehicle}Steering wheel device for vehicle

본 발명은 차량에 관한 것으로, 특히 차량의 스티어링휠장치에 관한 것이다.The present invention relates to a vehicle, and more particularly to a steering wheel device of a vehicle.

스티어링 휠 쉬미(steering wheel shimmy) 진동은 타이어 불균형(tire unbalance) 진동이 타이 로드(tie rod)를 좌우로 가진시켜 기어 박스(gear box)와 유-조인트(u-joint) 및 스티어링 컬럼(steering column)을 거쳐서 스티어링 휠(steering wheel)에 전달되는 진동을 말하는데, 이 쉬미(shimmy) 진동은 스티어링 휠(steering wheel)의 토셔널(torsional) 방향의 진동 모드와 밀접한 상관관계가 있다.Steering wheel shimmy oscillations are caused by tire unbalance oscillations that tie the tie rods from side to side, resulting in gear box, u-joint and steering columns. Refers to the vibration transmitted to the steering wheel, which is closely related to the vibrational mode of the steering wheel in the torsional direction.

즉, 도1에 도시된 바와 같이, 스티어링 휠 토셔널(steering wheel torsional) 진동 모드가 서스펜션 전후 진동 모드의 2배가 되는 주파수에 설정되어 있고, 타이어 불균형(tire unbalance) 진동이 20㎐로 발생할 경우(일반적으로 110~12kph) 서스펜션 전후 진동 모드의 2차 하모닉(harmonic) 성분과 스티어링 휠 토셔널(steering wheel torsional) 진동 모드 40㎐가 만나 공진이 발생되어 쉬미(shimmy) 진동을 증폭시킨다.That is, as shown in Fig. 1, when the steering wheel torsional vibration mode is set at a frequency that is twice the vibration mode before and after the suspension, and tire unbalance vibration occurs at 20 Hz ( Generally, the second harmonic component of the vibration mode before and after the 110 to 12 kph suspension and the steering wheel torsional vibration mode 40㎐ meet to generate a resonance, thereby amplifying shimmy vibration.

따라서, 일반적으로 스티어링 휠 토셔널(steering wheel torsional) 진동 모드는 서스펜션 전후 진동 모드의 2배가 되지 않도록 설계해야 한다.Therefore, in general, the steering wheel torsional vibration mode should be designed not to be twice the vibration mode before and after the suspension.

상기 스티어링 휠(steering wheel)의 토셔널(torsional) 진동 모드는 도2에 도시된 바와 같은 단순 모델로 생각할 수 있는데. 이때, 토셔널(torsional) 진동 모드의 주파수는 스티어링 컬럼(steering column)의 강성(stiffness)과 스티어링 휠(steering wheel)의 관성 모멘트(inertia) 특성에 의해 결정된다.The torsional vibration mode of the steering wheel can be thought of as a simple model as shown in FIG. In this case, the frequency of the torsional vibration mode is determined by the stiffness of the steering column and the inertia characteristic of the steering wheel.

즉, 단순 모델화된 스티어링 휠과 컬럼 시스템(steering wheel & columnsystem)의 토셔널(torsional) 고유 진동수는 하기한 식과 같이 구해진다.That is, the torsional natural frequencies of the simply modeled steering wheel and column system are calculated as follows.

여기서,는 스티어링 휠(steering wheel)의 관성 모멘트(inertia)이고,는 스티어링 컬럼(steering column)의 비틀림 스프링 상수이다.here, Is the inertia of the steering wheel, Is the torsional spring constant of the steering column.

이러한 토셔널(torsional) 고유진동수를 변경시키기 위해서는 스티이링 컬럼(steering column)의 가성을 변경시키거나 스티어링 휠(steering wheel)의 관성 모멘트(inertia)를 변경시켜야 한다.In order to change this torsional natural frequency, it is necessary to change the causticity of the steering column or the inertia of the steering wheel.

그러나, 일반적으로 스티어링 컬럼(steering column)은 핸들링(handling) 특성을 고려하여 충분히 높은 강성을 설정하고 있어 더 이상 높이기 힘들며 또한, 스티어링 휠(steering wheel)의 관성 모멘터(inertia) 특성은 스티어링 휠(steering wheel)의 모양이 결정되면 변경시키기가 힘들다.However, in general, the steering column is set to a sufficiently high stiffness in consideration of handling characteristics, and thus, it is difficult to increase it further. Also, the inertia characteristic of the steering wheel is determined by the steering wheel. Once the shape of the steering wheel is determined, it is difficult to change.

따라서 본 발명은 상기와 같은 문제점을 해결하기 위해 안출한 것으로서, 스티어링 휠(steering wheel)의 관성 모멘트(inertia) 특성을 가변시켜 스티어링 휠 토셔널(steering wheel torsional) 진동 모드 주파수를 변경시키기 위한 차량의 스티어링휠장치를 제공하는데 그 목적이 있다.Accordingly, the present invention has been made to solve the above problems, the vehicle's vehicle for changing the steering wheel torsional vibration mode frequency by varying the inertia characteristics of the steering wheel (steering wheel) The object is to provide a steering wheel device.

도1은 종래 서스펜션 전후 진동 모드 및 스티어링 휠 토셔널(steering wheel torsional) 진동 모드의 주파수와 진동 레벨의 관계를 나타낸 도면BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a diagram showing a relationship between a frequency and a vibration level in a vibration mode before and after a suspension and steering wheel torsional vibration mode

도2는 종래 스티어링 휠과 컬럼(steering wheel & column)의 단순 모델을 나타낸 도면Figure 2 shows a simple model of a conventional steering wheel and column (steering wheel & column)

도3은 본 발명에 따른 차량의 스티어링휠장치의 일실시예를 나타낸 도면3 is a view showing an embodiment of a steering wheel device of a vehicle according to the present invention;

도4a 및 도4b는 도3의 쉬미 진동 개선부의 동작상태를 나타낸 도면4A and 4B are views illustrating an operating state of the shimmy vibration improving unit of FIG.

도면의 주요부분에 대한 부호의 설명Explanation of symbols for main parts of the drawings

110 : 차속센서 120 : 제어부110: vehicle speed sensor 120: control unit

130 : 유압 발생부 140 : 스티어링 휠(steering wheel)130: hydraulic generating unit 140: steering wheel (steering wheel)

150 : 스티어링 휠 스토크(steering wheel spoke)150: steering wheel spoke

160 : 쉬미 진동 개선부 161 : 유압 피스톤160: Shimmy vibration improving unit 161: hydraulic piston

162, 163 : 제1 및 제2 웨이트(weight)162 and 163: first and second weights

164, 165 : 제1 및 제2 스프링164, 165: first and second spring

상기와 같은 목적을 달성하기 위한 본 발명에 따른 차량의 스티어링휠장치의 특징은, 차속센서와, 스티어링 휠 스토크(steering wheel spoke)를 구비한 차량의스티어링휠장치에 있어서, 상기 차속센서에서 감지된 차속과 기설정된 차속을 비교한 후 그 비교결과에 따라 스티어링 휠 토셔널(steering wheel torsional) 진동 주파수를 가변시켜 쉬미(shimmy) 진동을 개선시키기 위한 제어신호를 출력하는 제어부와, 상기 제어부에서 출력된 제어신호에 따라 일정 유압을 발생하는 유압 발생부와, 상기 스티어링 휠 스토크(steering wheel spoke)에 장착되어 상기 유압 발생부에서 발생된 일정 유압에 따라 스티어링 휠 토셔널(steering wheel torsional) 진동 주파수를 가변시켜 쉬미(shimmy) 진동을 개선시키기 위한 쉬미 진동 개선부를 포함하여 구성되는데 있다.A characteristic of a steering wheel device of a vehicle according to the present invention for achieving the above object is a steering wheel device of a vehicle having a vehicle speed sensor and a steering wheel spoke, which is detected by the vehicle speed sensor. A controller for comparing a vehicle speed with a preset vehicle speed and outputting a control signal for improving shimmy vibration by varying a steering wheel torsional vibration frequency according to the comparison result; A hydraulic generator for generating a constant hydraulic pressure in accordance with a control signal, and the steering wheel torsional vibration frequency is mounted in accordance with the fixed hydraulic pressure generated in the hydraulic wheel generated in the steering wheel spoke (steering wheel spoke) It is configured to include a shimmy vibration improving unit for improving the shimmy vibration.

상기 쉬미 진동 개선부는 상기 유압 발생부에서 발생된 일정 유압에 따라 작동하는 유압 피스톤과, 상기 유압 피스폰의 작동에 연동되어 스티어링 휠 토셔널(steering wheel torsional) 진동 주파수를 가변시켜 쉬미(shimmy) 진동을 개선시키는 제1 및 제2 웨이트(weight)와, 상기 제1 및 제2 웨이트(weight)와 연동되어 압축 및 복원되는 제1 및 제2 스프링을 포함하여 구성된 것을 다른 특징으로 하는데 있다.The shimmy vibration improving unit may operate in accordance with a predetermined hydraulic pressure generated by the hydraulic generator and the shimmy vibration by varying a steering wheel torsional vibration frequency in conjunction with the operation of the hydraulic piston. The first and second weight (improved) and the first and second weight (weight) in conjunction with the first and second weight (weight) and the first and second spring that is compressed and restored to another feature is characterized in that it comprises.

상기 제1 및 제2 웨이트(weight)는 상기 유압 피스톤의 작동에 따라 바깥쪽으로 이동할 경우 관성 모멘트(inertia)가 증가하여 스티어링 휠 토셔널(steering wheel torsional) 진동을 감소시키게 되고, 상기 유압 피스톤의 작동에 따라 안쪽으로 이동할 경우 광선 모멘트(inertia)가 감소하여 스티어링 휠 토셔널(steering wheel sorsional) 진동을 증가시켜 쉬미 진동을 개선시키게 되는 것을 또다른 특징으로 하는데 있다.The first and second weights increase inertia when they move outwardly according to the operation of the hydraulic piston, thereby reducing steering wheel torsional vibration, and actuating the hydraulic piston. According to another aspect of the present invention, the inertia of the beam is reduced to increase the steering wheel sorsional vibration, thereby improving the shimmy vibration.

본 발명의 다른 목적, 특징 및 잇점들은 첨부한 도면을 참조한 실시예들의 상세한 설명을 통해 명백해질 것이다.Other objects, features and advantages of the present invention will become apparent from the following detailed description of embodiments taken in conjunction with the accompanying drawings.

이하, 본 발명에 따른 차량의 스티어링휠장치의 바람직한 실시예에 대하여 설명하면 다음과 같다.Hereinafter, a preferred embodiment of a steering wheel device of a vehicle according to the present invention will be described.

도3은 본 발명에 따른 차량의 스티어링휠장치의 일실시예를 나타낸 도면으로서, 차속센서(110)와, 제어부(120)와, 유압 발생부(130)와, 스티어링 휠(steering wheel:140)과, 스티어링 휠 스토크(steering wheel spoke:150)와, 쉬미 진동 개선부(160)를 포함하여 구성되며, 상기 쉬미 진동 개선부(160)은 유압 피스톤(161)과, 제1 및 제2 웨이트(weight)(162)(163)와, 제1 및 제2 스프링(164)(165)을 포함하여 구성된다.3 is a view showing an embodiment of a steering wheel device of a vehicle according to the present invention, the vehicle speed sensor 110, the control unit 120, the hydraulic generator 130, the steering wheel (steering wheel: 140) And a steering wheel spoke 150 and a shimmy vibration improving unit 160, wherein the shimmy vibration improving unit 160 includes a hydraulic piston 161 and first and second weights. weight) 162, 163, and first and second springs 164, 165.

상기 차속센서(110)는 차량의 속도를 감지하게 된다.The vehicle speed sensor 110 detects the speed of the vehicle.

상기 제어부(120)는 상기 차속센서(110)에서 감지된 차속에 따라 스티어링 휠 토셔널(steering wheel torsional) 진동 주파수를 가변시켜 쉬미(shimmy) 진동을 개선시키기 위한 제어신호를 출력하게 된다.The control unit 120 outputs a control signal for improving shimmy vibration by varying a steering wheel torsional vibration frequency according to the vehicle speed detected by the vehicle speed sensor 110.

상기 유압 발생부(130)는 상기 제어부(120)에서 출력된 제어신호에 따라 일정 유압을 발생하게 된다.The hydraulic pressure generating unit 130 generates a predetermined hydraulic pressure according to the control signal output from the control unit 120.

상기 쉬미 진동 개선부(160)는 상기 스티어링 휠(steering wheel:140)의 스티어링 휠 스토크(steering wheel spoke:150)에 장착되어 상기 유압 발생부(130)에서 발생된 일정 유압에 따라 스티어링 휠 토셔널(steering wheel torsional) 진동 주파수를 가변시켜 쉬미(shimmy) 진동을 개선시키게 된다.The shimmy vibration improving unit 160 is mounted to a steering wheel spoke 150 of the steering wheel 140 and according to a predetermined hydraulic pressure generated by the hydraulic generating unit 130, the steering wheel tonic (steering wheel torsional) By varying the frequency of vibration to improve shimmy vibration.

상기 제1 및 제2 웨이트(weight)(162)(163)는 상기 유압 피스톤(161)의 작동에 따라 바깥쪽으로 이동할 경우 관성 모멘트(inertia)가 증가하여 스티어링 휠 토셔널(steering wheel torsional) 진동을 감소시키게 되고, 상기 유압 피스톤(161)의 작동에 따라 안쪽으로 이동할 경우 광선 모멘트(inertia)가 감소하여 스티어링 휠 토셔널(steering wheel sorsional) 진동을 증가시켜 쉬미 진동을 개선시키게 된다.The first and second weights 162 and 163 increase inertia when they move outwardly according to the operation of the hydraulic piston 161, thereby causing steering wheel torsional vibrations. As the hydraulic piston 161 moves inwardly, the radial moment (inertia) decreases to increase the steering wheel sorsional vibration, thereby improving the shimmy vibration.

상기 유압 피스톤(161)은 상기 유압 발생부(130)에서 발생된 일정 유압에 따라 작동하게 된다.The hydraulic piston 161 is operated according to a predetermined hydraulic pressure generated from the hydraulic pressure generating unit 130.

상기 제1 및 제2 웨이트(weight)(162)(163)는 상기 유압 피스폰(161)의 작동에 연동되어 스티어링 휠 토셔널(steering wheel torsional) 진동 주파수를 가변시켜 쉬미(shimmy) 진동을 개선시키게 된다.The first and second weights 162 and 163 are linked to the operation of the hydraulic piston 161 to vary the steering wheel torsional vibration frequency to improve shimmy vibration. Let's go.

상기 제1 및 제2 스프링(162)(163)은 상기 제1 및 제2 웨이트(weight)와 연동되어 압축 및 복원되게 된다.The first and second springs 162 and 163 may be compressed and restored in cooperation with the first and second weights.

도4a 및 도4b는 도3의 쉬미 진동 개선부의 동작상태를 나타낸 도면이다.4A and 4B are views illustrating an operating state of the shimmy vibration improving unit of FIG. 3.

이와 같이 구성된 본 발명에 따른 차량의 스티어링휠장치의 동작을 첨부한 도면을 참조하여 상세히 설명하면 다음과 같다.Referring to the accompanying drawings, the operation of the steering wheel device of the vehicle according to the present invention configured as described above will be described in detail as follows.

먼저, 차속센서(110)는 차량의 속도를 감지하게 된다.First, the vehicle speed sensor 110 detects the speed of the vehicle.

그러면 제어부(120)는 상기 차속센서(110)에서 감지된 차속에 따라 스티어링 휠 토셔널(steering wheel torsional) 진동 주파수를 가변시켜 쉬미(shimmy) 진동을 개선시키기 위한 제어신호를 출력하게 된다. 즉, 제어부(120)는 상기차속센서(110)에서 감지된 차속과 기설정된 차속을 비교한 후 그 비교결과에 따라 스티어링 휠 토셔널(steering wheel torsional) 진동 주파수를 가변시켜 쉬미(shimmy) 진동을 개선시키기 위한 제어신호를 출력하게 된다.Then, the control unit 120 outputs a control signal for improving shimmy vibration by varying a steering wheel torsional vibration frequency according to the vehicle speed detected by the vehicle speed sensor 110. That is, the controller 120 compares the vehicle speed detected by the vehicle speed sensor 110 with a preset vehicle speed, and then changes the steering wheel torsional vibration frequency according to the comparison result to perform shimmy vibration. It outputs a control signal for improvement.

이에 따라 유압 발생부(130)는 상기 제어부(120)에서 출력된 제어신호에 따라 일정 유압을 발생하게 된다.Accordingly, the hydraulic pressure generating unit 130 generates a predetermined hydraulic pressure according to the control signal output from the control unit 120.

그러면, 쉬미 진동 개선부(160)는 상기 스티어링 휠(steering wheel:140)의 스티어링 휠 스토크(steering wheel spoke:150)에 장착되어 상기 유압 발생부(130)에서 발생된 일정 유압에 따라 스티어링 휠 토셔널(steering wheel torsional) 진동 주파수를 가변시켜 쉬미(shimmy) 진동을 개선시키게 된다.Then, the shimmy vibration improving unit 160 is mounted to a steering wheel spoke 150 of the steering wheel 140 to adjust the steering wheel toe according to a predetermined hydraulic pressure generated by the hydraulic generator 130. The steering wheel torsional vibration frequency is varied to improve shimmy vibration.

즉, 쉬미 진동 개선부(160)의 유압 피스톤(161)은 상기 유압 발생부(130)에서 발생된 일정 유압에 따라 작동하게 된다.That is, the hydraulic piston 161 of the Shimmy vibration improving unit 160 operates according to a predetermined hydraulic pressure generated by the hydraulic generating unit 130.

그러면 제1 및 제2 웨이트(weight)(162)(163)는 상기 유압 피스폰(161)의 작동에 연동되어 스티어링 휠 토셔널(steering wheel torsional) 진동 주파수를 가변시켜 쉬미(shimmy) 진동을 개선시키게 된다. 즉, 상기 제1 및 제2 웨이트(weight)(162)(163)는 도4a에 도시된 바와 같이, 상기 유압 피스톤의 작동에 따라 바깥쪽으로 이동할 경우 관성 모멘트(inertia)가 증가하여 스티어링 휠 토셔널(steering wheel torsional) 진동을 감소시키게 되고, 도4b에 도시된 바와 같이, 상기 유압 피스톤(161)의 작동에 따라 안쪽으로 이동할 경우 광선 모멘트(inertia)가 감소하여 스티어링 휠 토셔널(steering wheel sorsional) 진동을 증가시켜 쉬미 진동을 개선시키게 된다.The first and second weights 162 and 163 are then linked to the operation of the hydraulic backphone 161 to vary the steering wheel torsional vibration frequency to improve shimmy vibration. Let's go. That is, as shown in FIG. 4A, the first and second weights 162 and 163 increase inertia when they move outwardly according to the operation of the hydraulic piston. (steering wheel torsional) to reduce the vibration, as shown in Figure 4b, when moving inwards in accordance with the operation of the hydraulic piston (161) the radial moment (inertia) is reduced to the steering wheel sorsional (steering wheel sorsional) The vibration is increased to improve the shimmy vibration.

이에 따라 제1 및 제2 스프링(162)(163)은 상기 제1 및 제2 웨이트(weight)와 연동되어 압축 및 복원되게 된다.Accordingly, the first and second springs 162 and 163 are compressed and restored in cooperation with the first and second weights.

이상에서 설명한 바와 같이 본 발명에 따른 차량의 스티어링휠장치는 스티어링 휠(steering wheel)의 관성 모멘트(inertia) 특성을 가변시켜 스티어링 휠 토셔널(steering wheel torsional) 진동 모드 주파수를 변경시키므로써 쉬미(shimmy) 진동과 공진되는 주파수를 회피할 수 있어 쉬미(shimmy) 진동을 개선할 수 있으며, 관성 모멘트(inertia) 감소에 의한 핸들링(handling) 성능도 향상시킬 수 있는 효과가 있다.As described above, the steering wheel device of the vehicle according to the present invention changes the steering wheel torsional vibration mode frequency by varying the inertia characteristic of the steering wheel. The vibration frequency and resonance frequency can be avoided to improve shimmy vibration, and the handling performance due to the reduction of the inertia is also improved.

이상 설명한 내용을 통해 당업자라면 본 발명의 기술 사상을 일탈하지 아니하는 범위에서 다양한 변경 및 수정이 가능함을 알 수 있을 것이다.Those skilled in the art will appreciate that various changes and modifications can be made without departing from the spirit of the present invention.

따라서, 본 발명의 기술적 범위는 실시예에 기재된 내용으로 한정되는 것이 아니라 특허 청구의 범위 및 그와 균등한 것들에 의하여 정해져야 한다.Therefore, the technical scope of the present invention should not be limited to the contents described in the embodiments, but should be defined by the claims and their equivalents.

Claims (3)

차속센서와, 스티어링 휠 스토크(steering wheel spoke)를 구비한 차량의 스티어링휠장치에 있어서,In a steering wheel apparatus of a vehicle having a vehicle speed sensor and a steering wheel spoke, 상기 차속센서에서 감지된 차속과 기설정된 차속을 비교한 후 그 비교결과에 따라 스티어링 휠 토셔널(steering wheel torsional) 진동 주파수를 가변시켜 쉬미(shimmy) 진동을 개선시키기 위한 제어신호를 출력하는 제어부와;A control unit for comparing the vehicle speed detected by the vehicle speed sensor with a preset vehicle speed and outputting a control signal for improving shimmy vibration by varying a steering wheel torsional vibration frequency according to the comparison result; ; 상기 제어부에서 출력된 제어신호에 따라 일정 유압을 발생하는 유압 발생부와;A hydraulic pressure generating unit generating constant hydraulic pressure according to the control signal output from the control unit; 상기 스티어링 휠 스토크(steering wheel spoke)에 장착되어 상기 유압 발생부에서 발생된 일정 유압에 따라 스티어링 휠 토셔널(steering wheel torsional) 진동 주파수를 가변시켜 쉬미(shimmy) 진동을 개선시키기 위한 쉬미 진동 개선부를 포함하여 구성된 것을 특징으로 하는 차량의 스티어링휠장치.Shimmy vibration improving unit for improving the shimmy vibration by varying the steering wheel torsional vibration frequency in accordance with a predetermined hydraulic pressure generated in the hydraulic generating unit mounted on the steering wheel spoke (steering wheel spoke) Steering wheel device of a vehicle comprising a. 제 1 항에 있어서,The method of claim 1, 상기 쉬미 진동 개선부는The shimmy vibration improving unit 상기 유압 발생부에서 발생된 일정 유압에 따라 작동하는 유압 피스톤과;A hydraulic piston operating according to a constant hydraulic pressure generated by the hydraulic pressure generating unit; 상기 유압 피스폰의 작동에 연동되어 스티어링 휠 토셔널(steering wheel torsional) 진동 주파수를 가변시켜 쉬미(shimmy) 진동을 개선시키는 제1 및 제2 웨이트(weight)와;First and second weights linked to the operation of the hydraulic piston to vary the steering wheel torsional vibration frequency to improve shimmy vibration; 상기 제1 및 제2 웨이트(weight)와 연동되어 압축 및 복원되는 제1 및 제2 스프링을 포함하여 구성된 것을 특징으로 하는 차량의 스티어링휠장치.Steering wheel device of a vehicle comprising a first and a second spring is compressed and restored in conjunction with the first and second weight (weight). 제 1 항에 있어서,The method of claim 1, 상기 제1 및 제2 웨이트(weight)는The first and second weights are 상기 유압 피스톤의 바깥쪽으로 이동할 경우 관성 모멘트(inertia)가 증가하여 스티어링 휠 토셔널(steering wheel torsional) 진동을 감소시키게 되고, 상기 유압 피스톤의 안쪽으로 이동할 경우 광선 모멘트(inertia)가 감소하여 스티어링 휠 토셔널(steering wheel sorsional) 진동을 증가시켜 쉬미 진동을 개선시키게 되는 것을 특징으로 하는 차량의 스티어링휠장치.When moving outward of the hydraulic piston increases the moment of inertia (inertia) to reduce the steering wheel torsional vibration, when moving inward of the hydraulic piston the radial moment (inertia) decreases to the steering wheel toe Steering wheel sorsional The steering wheel device of a vehicle, characterized in that to improve the shimmy vibration by increasing the vibration.
KR10-2002-0074726A 2002-11-28 2002-11-28 apparatus for steering wheel of vehicle KR100471896B1 (en)

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KR20170006963A (en) 2015-07-10 2017-01-18 주식회사 엘지화학 Protection circuit device for battery
CN114919659A (en) * 2022-04-22 2022-08-19 一汽奔腾轿车有限公司 Method and system for inhibiting wheel shimmy based on EPS

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JPH08290775A (en) * 1995-04-21 1996-11-05 Nippon Plast Co Ltd Vibration suppressing device of steering wheel
KR0180870B1 (en) * 1996-05-23 1999-03-20 박병재 Steering column vibration absorbing system
KR100254351B1 (en) * 1996-12-27 2000-05-01 정몽규 Shimmy preventing device for steering column
JPH1143058A (en) * 1997-07-25 1999-02-16 Nissan Motor Co Ltd Electrically driven power steering device
JP2002087279A (en) * 2000-09-13 2002-03-27 Kanto Auto Works Ltd Automobile
KR20030021441A (en) * 2001-09-06 2003-03-15 현대자동차주식회사 Dynamic vibration absorbing damper in vehicle

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170006963A (en) 2015-07-10 2017-01-18 주식회사 엘지화학 Protection circuit device for battery
CN114919659A (en) * 2022-04-22 2022-08-19 一汽奔腾轿车有限公司 Method and system for inhibiting wheel shimmy based on EPS
CN114919659B (en) * 2022-04-22 2023-11-21 一汽奔腾轿车有限公司 EPS-based method and system for inhibiting wheel shimmy

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