JPS6444312A - Controlling method for automobile suspension - Google Patents

Controlling method for automobile suspension

Info

Publication number
JPS6444312A
JPS6444312A JP19961087A JP19961087A JPS6444312A JP S6444312 A JPS6444312 A JP S6444312A JP 19961087 A JP19961087 A JP 19961087A JP 19961087 A JP19961087 A JP 19961087A JP S6444312 A JPS6444312 A JP S6444312A
Authority
JP
Japan
Prior art keywords
signal
acceleration
signal generator
road surface
inputted
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
JP19961087A
Other languages
Japanese (ja)
Inventor
Hideo Tsubata
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.)
Subaru Corp
Original Assignee
Fuji Heavy Industries 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 Fuji Heavy Industries Ltd filed Critical Fuji Heavy Industries Ltd
Priority to JP19961087A priority Critical patent/JPS6444312A/en
Publication of JPS6444312A publication Critical patent/JPS6444312A/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
    • 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
    • B60G2202/152—Pneumatic spring
    • 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
    • B60G2400/25—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
    • B60G2400/90—Other conditions or factors
    • B60G2400/91—Frequency
    • 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
    • B60G2600/16—Integrating means, i.e. integral control
    • 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
    • B60G2600/60—Signal noise suppression; Electronic filtering means
    • B60G2600/604—Signal noise suppression; Electronic filtering means low pass

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

PURPOSE:To reduce air consumption and to improve shock absorbing performance by variably controlling a frequency band, used for restraining a car body vibration, of an acceleration signal according to the situation of a road surface on the basis of a signal issued from a bandwidth variable signal generator having a function for judging whether the road surface is good or bad. CONSTITUTION:Air is injected into or exhausted from an air suspension system 1 by opening and closing an injection valve 21 and an exhaust valve 22 of a flow control valve 2. The relative displacement of the air suspension system 1 on an upper and a lower side of a spring is detected by a ground clearance sensor 3, and acceleration on the upper and the lower side of the spring is detected by an acceleration sensor 4. A ground clearance signal is inputted into a flow indicating signal generator 7, and on the other hand, as to an acceleration signal, only the signal having passed through a variable band low range passing filter 5 is inputted into the flow indicating signal generator 7. In this case, the above-mentioned filter variably controls the upper limit value of passing range on a band width variable signal issued from a bandwidth variable signal generator 6 having a function for judging whether a road surface is good or bad.
JP19961087A 1987-08-10 1987-08-10 Controlling method for automobile suspension Pending JPS6444312A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19961087A JPS6444312A (en) 1987-08-10 1987-08-10 Controlling method for automobile suspension

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19961087A JPS6444312A (en) 1987-08-10 1987-08-10 Controlling method for automobile suspension

Publications (1)

Publication Number Publication Date
JPS6444312A true JPS6444312A (en) 1989-02-16

Family

ID=16410722

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19961087A Pending JPS6444312A (en) 1987-08-10 1987-08-10 Controlling method for automobile suspension

Country Status (1)

Country Link
JP (1) JPS6444312A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2683776A1 (en) * 1991-10-05 1993-05-21 Bosch Gmbh Robert SYSTEM FOR OBTAINING A SIGNAL REPRESENTING THE SURFACE OF THE PAVEMENT, USED FOR SYSTEMS FOR ADJUSTING, CONTROLLING THE DYNAMIC MARKET OF A MOTOR VEHICLE.
WO2001070526A1 (en) * 2000-03-20 2001-09-27 Intech Thüringen Gmbh Pneumatic shock-absorber

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5934908A (en) * 1982-08-20 1984-02-25 Isuzu Motors Ltd Hydropneumatic suspension device
JPS60151111A (en) * 1984-01-20 1985-08-09 Nissan Motor Co Ltd Road-surface state detector
JPS62139709A (en) * 1985-12-12 1987-06-23 Fuji Heavy Ind Ltd Active suspension system for automobile

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5934908A (en) * 1982-08-20 1984-02-25 Isuzu Motors Ltd Hydropneumatic suspension device
JPS60151111A (en) * 1984-01-20 1985-08-09 Nissan Motor Co Ltd Road-surface state detector
JPS62139709A (en) * 1985-12-12 1987-06-23 Fuji Heavy Ind Ltd Active suspension system for automobile

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2683776A1 (en) * 1991-10-05 1993-05-21 Bosch Gmbh Robert SYSTEM FOR OBTAINING A SIGNAL REPRESENTING THE SURFACE OF THE PAVEMENT, USED FOR SYSTEMS FOR ADJUSTING, CONTROLLING THE DYNAMIC MARKET OF A MOTOR VEHICLE.
WO2001070526A1 (en) * 2000-03-20 2001-09-27 Intech Thüringen Gmbh Pneumatic shock-absorber
US6568665B2 (en) 2000-03-20 2003-05-27 Intech Thüringen Gmbh Pneumatic shock-absorber
JP4966467B2 (en) * 2000-03-20 2012-07-04 コンティテック ルフトフェデルシステメ ゲーエムベーハー Secondary buffer system

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