KR920006149A - 차량용 현수 제어장치 - Google Patents

차량용 현수 제어장치 Download PDF

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KR920006149A
KR920006149A KR1019910015404A KR910015404A KR920006149A KR 920006149 A KR920006149 A KR 920006149A KR 1019910015404 A KR1019910015404 A KR 1019910015404A KR 910015404 A KR910015404 A KR 910015404A KR 920006149 A KR920006149 A KR 920006149A
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suspension
vehicle
road surface
height
detector
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KR1019910015404A
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KR950002559B1 (ko
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다다오 다나까
다까오 모리따
아끼히꼬 도가시
나오히로 기시모또
히로아끼 요시다
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나까무라 히로까즈
미쓰비시 지도샤 고교 가부시끼가이샤
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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
    • B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
    • B60G17/04—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics
    • B60G17/0416—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics regulated by varying the resiliency of hydropneumatic suspensions
    • 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
    • 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
    • B60G17/0164—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 accelerating or braking
    • 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
    • B60G17/0165—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 to an external condition, e.g. rough road surface, side wind
    • 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
    • B60G2202/10—Type of spring
    • B60G2202/15—Fluid spring
    • B60G2202/154—Fluid spring with an accumulator
    • 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
    • B60G2202/20—Type of damper
    • B60G2202/24—Fluid damper
    • 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
    • B60G2400/10—Acceleration; Deceleration
    • B60G2400/102—Acceleration; Deceleration vertical
    • 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
    • B60G2400/25—Stroke; Height; Displacement
    • B60G2400/252—Stroke; Height; Displacement vertical
    • 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
    • B60G2400/80—Exterior conditions
    • B60G2400/82—Ground surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2401/00—Indexing codes relating to the type of sensors based on the principle of their operation
    • B60G2401/17—Magnetic/Electromagnetic
    • B60G2401/176—Radio or audio sensitive means, e.g. Ultrasonic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2500/00—Indexing codes relating to the regulated action or device
    • B60G2500/10—Damping action or damper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2500/00—Indexing codes relating to the regulated action or device
    • B60G2500/20—Spring action or springs
    • B60G2500/22—Spring constant
    • 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
    • B60G2800/014—Pitch; Nose dive
    • 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
    • B60G2800/91—Suspension Control
    • B60G2800/916—Body Vibration Control

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

Abstract

내용 없음.

Description

차량용 현수 제어장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 관한 차량용 현수 제어장치의 개략적인 구성을 설명하기 위한 블럭도.
제2도는 제1도의 예비검사 감지기(23)가 돌기등을 검출한 위치와 차륜위치의 관계를 나타내는 도해도.
제3도는 제1의 제어기(30)를 따라 실행되는 거리연산 루틴의 순서를 나타내는 플로우챠트.
제4a도는 실제 주행시의 돌기와 예비 검사 감지기(3)의 위치관계를 나타내는 도해도.
제4b도는 제4a도의 점 A, B, C 및 D의 위치관계를 상세히 나타내는 도해도.
제5도는 표준상태시의 돌기와 예비검사 감지기(33)의 위치관계를 나타내는 도해도.
제6a도 및 제6b도는 제어기(30)를 따라 실행되는 예비검사 제어루틴의 순서를 나타내는 플로우챠트.
제7도는 예비검사 감지기(33)가 돌기등을 검출한 타이밍과 절환밸브에 출력된 절환신호의 시간변화를 나타내는 그래프.
* 도면의 주요부분에 대한 부호의 설명
1 : 펌프 7 : 차체
8 : 차륜 12 : 현수유니트
17 : 제어벨트 30 : 제어기
33 : 예비검사 감지기

Claims (13)

  1. 차륜(8)을 차체(7)에 지지하는 현수의 특성을 강성 및 연성 가능하게 변경가능한 현수 특성 변경수단(22)과, 차량의 표준상태에서 소정거리(L)만큼 차량 전방의 노면요철을 검출하도록 차체(7)에 장착된 전방노면 감지기(33)와, 차량의 주행속도(V)를 검출하는 속도 감지기(34)와, 상기 전방노면 감지기(33)가 노면의 요철을 검출한 경우에 속도 감지기(34)의 출력(V)에 의하여 차륜(8)이 노면의 요철에 도달하는 시점을 연산함과 동시에, 상기시점에서 현수특성을 유연하게 하는 지령신호를 현수특성 변경수단(22)에 출력하는 제어수단(30)을 갖춘 차량용 현수 제어장치에 있어서, 차고를 검출하는 차고 검출수단(32)을 또한 구비하고, 상기 제어수단(30)은 차고 검출수단(32)의 검출출력(HFL, HFR, HRL, HRR)에 의하여 전방노면 감지기(33)가 노면의 요철을 검출하는 상기 소정 거리(L)를 보정하고, 보정한 소정거리(L)와 속도 감지기(34)의 출력(V)에 의하여 차륜(8)이 노면의 요철에 도달하는 시점을 연산하도록 구성되어 있는 것을 특징으로 하는 차량용 현수 제어장치.
  2. 제1항에 있어서, 상기 제어수단은(30) 차고 검출수단(32)의 검출출력(HFL, HFR, HRL, HRR)이 상기표준 상태에 대한 소정의 기준 범위를 초과하여 변화하고 있는 경우에만 소정거리(L)의 보정을 실행하는 것을 특징으로 하는 차량용 현수 제어장치.
  3. 제2항에 있어서, 상기 차고 검출수단(32)은 전후 좌우륜에 각각 설치되고, 상기 제어수단(30)은 각차고 검출수단(32)의 검출출력(HFL, HFR, HRL, HRR)의 적어도 1개가 상기 표준상태에 대해 소정의 기준범위를 초과하여 변화하고 있는 경우에만 소정거리(L)의 보정을 실행하는 것을 특징으로 하는 차량용 현수 제어장치.
  4. 제1항에 있어서, 상기 제어수단(30)은 차고 검출수단(32)의 검출출력(HFL, HFR, HRL, HRR)에 의하여 전방노면 감지기(33)의 노상높이(Hp) 투시각도(θ)를 산출하여 소정거리(L)를 보정하는 것을 특징으로 하는 차량용 현수 제어장치.
  5. 제4항에 있어시, 상기 소정거리(L)의 보정은 L=HP/tanθ의 연산식에 의해 산출되는 것을 특징으로하는 차량용 현수 제어장치.
  6. 제4항에 있어서, 상기 제어수단(30)은 전륜이 차고를 검출하는 차고 검출수단(32)의 출력에 의하여 상기 표준상태에 대한 전륜의 차고변화(△hF)를 산출함과 동시에, 표준상태에서 상기 전방노면감지기(33)의 소정 노상높이(Hpo)를 사용하여, 상기 전방노면 감지기(33)의 노상높이(Hp)를 Hp=Hpo-△HF의 연산식에 의하여 산출하는 것을 특징으로 하는 차량용 현수 제어장치.
  7. 제4항에 있어서, 상기 차고 검출수단(32)은 전류 및 후륜의 차고를 검출하도록 설치되고, 상기 제어수단(30)은 차고 검출수단(32)의 출력에 의하여 표준상태에 대한 전륜 및 후륜의 차고변화(△HF, △HR)를 산출함과 동시에, 차량의 바퀴간격(Lw)과 표준상태에서 전방노면 감지기(33)에 투사각도(θO)를 사용하여 전방노면감지기(33)의 투사각도(θ)를 θ=θO+tan-1{(△HF-△HF)/Lw}의 연산식에 의하여 산출하는 것을 특징으로 하는 차량용 현수 제어장치.
  8. 제1항에 있어서, 상기 제어수단(30)은 상기 시점에서 소정시간(to)의 차이만큼 현수 특성을 유연하게 하는 지령신호를 현수특성변경수단(22)에 출력하도록 구성되어 있는 것을 특징으로 하는 차량용 현수 제어장치.
  9. 제1항에 있어서, 상기 전방노면 감지기(33)는 초음파 반사파를 이용한 감지기인 것을 특징으로 하는 차량용 현수 제어장치.
  10. 제1항에 있어서, 상기 현수는 제어밸브(17)의 작동에 따라 하중지지력이 증감 제어되는 유압작동기(14)를 갖춘 능동현수이고, 현수특성 변경수단은 유압작동기(14)와 누산기(20, 21)가 연통하는 유동통로(16a, 16b)의 조리개 개도를 가변제어하는 절환 밸브(22)인 것을 특징으로 하는 차량용 현수 제어장치,
  11. 제1항에 있어서, 상기 현수는 제어밸브(17)의 작동에 따라 하중지지력이 증감제어되는 유압작동기(14)와, 유압작동기(14)에 항상 연통하는 제1누산기(20)를 갖춘 능동 현수이고, 현수 특성 변경수단은 제1누산기(20)와 병렬로 설치된 제2누산기(21)의 유압작동기(14)에 대한 연통을 선택적으로 개폐하는 절환밸브(22)인 것을 특징으로 하는 차량용 현수 제어장치,
  12. 제11항에 있어서, 상기 제1누산기(20)를 유압 작동기(14)에 항상 연통하는 유동 통로(16a)에 개장된 오리피스(19)를 또한 구비하고, 상기 절환밸브(22)는 오리피스(19)와 병렬로 유압작동기(14)에 접속되어 있는 것을 특징으로 하는 차량용 현수 제어장치.
  13. 제1항에 있어서, 상기 제어수단(30)은 차고 검출수단(32)의 검출출력(HFL, HFR, HRL, HRR)에 의하여 전방노면 감지기(33)의 노상높이(Hp) 및 투사각도(θ)를 산출하는 제1프로세스(S18, S20)와, 제1프로세스(S18, S20)에서 산출한 전방노면 감지기(33)의 노상높이(Hp) 및 투사각도(θ)에 따라 소정거리(L)를 보정하는 제2프로세스(S22)와, 전방노면 감지기(33)가 노면의 요철을 검출한 경우에 속도 감지기(34)의 출력(V)과 제2프로세스(S22)에서 보정한 소정거리(L)에 따라 차륜(8)이 노면의 요철에 도달하기 까지의 지연시간(T1)을 연산하는 제3프로세스(S110, S120, S130)와, 상기 지연시간(T1)의 경과후에 현수특성을 유연하게하는 지령신호를 현수 특성 변경수단(22)에 출력하는 제4프로세서(S140, S150, S160)를 실행하도록 구성되는 것을 특징으로 하는 차량용 현수 제어장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019910015404A 1990-09-18 1991-09-04 차량용 현수 제어장치 KR950002559B1 (ko)

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JP2248418A JP2541353B2 (ja) 1990-09-18 1990-09-18 車両用アクティブサスペンション装置
JP90-248418 1990-09-18

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KR920006149A true KR920006149A (ko) 1992-04-27
KR950002559B1 KR950002559B1 (ko) 1995-03-23

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DE4130877A1 (de) 1992-03-19
US5347457A (en) 1994-09-13
KR950002559B1 (ko) 1995-03-23
JP2541353B2 (ja) 1996-10-09
DE4130877C2 (ko) 1993-08-05
JPH04126620A (ja) 1992-04-27

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