JPS6460411A - Shock absorber control device - Google Patents

Shock absorber control device

Info

Publication number
JPS6460411A
JPS6460411A JP21855087A JP21855087A JPS6460411A JP S6460411 A JPS6460411 A JP S6460411A JP 21855087 A JP21855087 A JP 21855087A JP 21855087 A JP21855087 A JP 21855087A JP S6460411 A JPS6460411 A JP S6460411A
Authority
JP
Japan
Prior art keywords
damping power
road surface
relative displacement
shock absorber
accordance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP21855087A
Other languages
Japanese (ja)
Inventor
Eiki Matsunaga
Yutaka Suzuki
Yozo Mashima
Toshinobu Ishida
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denso Corp
Soken Inc
Original Assignee
Nippon Soken Inc
NipponDenso Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Soken Inc, NipponDenso Co Ltd filed Critical Nippon Soken Inc
Priority to JP21855087A priority Critical patent/JPS6460411A/en
Publication of JPS6460411A publication Critical patent/JPS6460411A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B60G17/01941—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 characterised by the use of piezoelectric elements, e.g. sensors or actuators
    • 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
    • B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
    • B60G2400/80—Exterior conditions
    • B60G2400/82—Ground surface
    • B60G2400/821—Uneven, rough road sensing affecting vehicle body vibration
    • 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
    • B60G2600/00—Indexing codes relating to particular elements, systems or processes used on suspension systems or suspension control systems
    • B60G2600/02—Retarders, delaying means, dead zones, threshold values, cut-off frequency, timer interruption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2600/00—Indexing codes relating to particular elements, systems or processes used on suspension systems or suspension control systems
    • B60G2600/18—Automatic control means
    • B60G2600/184—Semi-Active control means

Landscapes

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

Abstract

PURPOSE:To easily further accurately control damping power by estimating the relative displacement between a car body and a wheel being based on the damping power of a shock absorber further deciding a road surface condition being based on a period of the relative displacement while switching the damping power in accordance with the road surface condition. CONSTITUTION:Each damping power of a number of shock absorbers 6 (6a-6d), provided in a vehicle, is detected by a number of load sensors 1a-1d respectively serving as a damping power detecting means 1. Each detected damping power is input respectively to a microcomputer 4 equipped with a CPU41 and other each equipment 42-46. Here being based on each damping power, the relative displacement between a car body and a wheel is estimated. While of the estimated relative displacements, in accordance with a period of the relative displacement larger than the predetermined displacement, a road surface conditioner for the vehicle running is decided. Thereafter, in accordance with the decided road surface condition, the damping power of each shock absorber 6a-6d is switched by a driving circuit 5.
JP21855087A 1987-09-01 1987-09-01 Shock absorber control device Pending JPS6460411A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21855087A JPS6460411A (en) 1987-09-01 1987-09-01 Shock absorber control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21855087A JPS6460411A (en) 1987-09-01 1987-09-01 Shock absorber control device

Publications (1)

Publication Number Publication Date
JPS6460411A true JPS6460411A (en) 1989-03-07

Family

ID=16721692

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21855087A Pending JPS6460411A (en) 1987-09-01 1987-09-01 Shock absorber control device

Country Status (1)

Country Link
JP (1) JPS6460411A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4102085A1 (en) * 1990-01-24 1991-08-14 Atsugi Unisia Corp INSTALLATION OF A LOAD SENSOR IN A MOTOR VEHICLE SUSPENSION SYSTEM
DE4106442A1 (en) * 1990-02-28 1991-09-19 Atsugi Unisia Corp SENSOR ARRANGEMENT IN A VIBRATION-INSULATING DEVICE
DE4111303A1 (en) * 1990-04-07 1991-10-17 Atsugi Unisia Corp DAMPING FORCE CONTROL DEVICE
US5088760A (en) * 1989-07-10 1992-02-18 Atsugi Unisia Corporation Semi-active suspension control system with reduced switching frequency in hard and soft suspension characteristics
DE4225219A1 (en) * 1991-07-30 1993-02-04 Atsugi Unisia Corp SUSPENSION TAX CONTROL SYSTEM FOR A MOTOR VEHICLE
US5226635A (en) * 1991-02-21 1993-07-13 Atsugi Unisia Corporation Strut for a vehicle suspension
US5365432A (en) * 1990-11-30 1994-11-15 Atsugi Unisia Corporation System and method for optimally controlling damping force characteristics of front and rear suspension units of four-wheeled vehicle
US5377107A (en) * 1990-11-30 1994-12-27 Atsugi Unisia Corporation System and method for controlling damping force characteristic of shock absorber applicable to automotive suspension
US5430646A (en) * 1991-02-22 1995-07-04 Atsugi Unisia Corporation System and method for controlling damping force coefficient of shock absorber applicable to automotive supension
US5828970A (en) * 1991-08-06 1998-10-27 Atsugi Unisia Corporation Suspension control system for automotive vehicle
KR100250698B1 (en) * 1996-06-21 2000-04-01 하나와 요시카즈 Vehicle suspension control device

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5088760A (en) * 1989-07-10 1992-02-18 Atsugi Unisia Corporation Semi-active suspension control system with reduced switching frequency in hard and soft suspension characteristics
US5086649A (en) * 1990-01-24 1992-02-11 Atsugi Unisia Corporation Mounting structure for load sensor in automotive suspension system
DE4102085A1 (en) * 1990-01-24 1991-08-14 Atsugi Unisia Corp INSTALLATION OF A LOAD SENSOR IN A MOTOR VEHICLE SUSPENSION SYSTEM
DE4106442A1 (en) * 1990-02-28 1991-09-19 Atsugi Unisia Corp SENSOR ARRANGEMENT IN A VIBRATION-INSULATING DEVICE
DE4111303A1 (en) * 1990-04-07 1991-10-17 Atsugi Unisia Corp DAMPING FORCE CONTROL DEVICE
US5365432A (en) * 1990-11-30 1994-11-15 Atsugi Unisia Corporation System and method for optimally controlling damping force characteristics of front and rear suspension units of four-wheeled vehicle
US5377107A (en) * 1990-11-30 1994-12-27 Atsugi Unisia Corporation System and method for controlling damping force characteristic of shock absorber applicable to automotive suspension
US5226635A (en) * 1991-02-21 1993-07-13 Atsugi Unisia Corporation Strut for a vehicle suspension
DE4205224C2 (en) * 1991-02-21 1999-08-12 Atsugi Unisia Corp Suspension strut for a vehicle wheel suspension
US5430646A (en) * 1991-02-22 1995-07-04 Atsugi Unisia Corporation System and method for controlling damping force coefficient of shock absorber applicable to automotive supension
DE4225219A1 (en) * 1991-07-30 1993-02-04 Atsugi Unisia Corp SUSPENSION TAX CONTROL SYSTEM FOR A MOTOR VEHICLE
US5490068A (en) * 1991-07-30 1996-02-06 Atsugi Unisia Corporation Suspension control system for automotive vehicle including apparatus for controlling shock absorber damping force coefficient
DE4225219C2 (en) * 1991-07-30 1998-06-04 Atsugi Unisia Corp Suspension control system for a motor vehicle
US5828970A (en) * 1991-08-06 1998-10-27 Atsugi Unisia Corporation Suspension control system for automotive vehicle
KR100250698B1 (en) * 1996-06-21 2000-04-01 하나와 요시카즈 Vehicle suspension control device

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