IT1256033B - Sensore d'altezza, in particolare per veicoli, e cuscino pneumatico - Google Patents

Sensore d'altezza, in particolare per veicoli, e cuscino pneumatico

Info

Publication number
IT1256033B
IT1256033B ITMI921965A ITMI921965A IT1256033B IT 1256033 B IT1256033 B IT 1256033B IT MI921965 A ITMI921965 A IT MI921965A IT MI921965 A ITMI921965 A IT MI921965A IT 1256033 B IT1256033 B IT 1256033B
Authority
IT
Italy
Prior art keywords
light beam
signal supplied
photoemitter
photoreceptor
value
Prior art date
Application number
ITMI921965A
Other languages
English (en)
Original Assignee
Bridgestione Corp
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 Bridgestione Corp filed Critical Bridgestione Corp
Publication of ITMI921965A0 publication Critical patent/ITMI921965A0/it
Publication of ITMI921965A1 publication Critical patent/ITMI921965A1/it
Application granted granted Critical
Publication of IT1256033B publication Critical patent/IT1256033B/it

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/06—Systems determining position data of a target
    • G01S17/08—Systems determining position data of a target for measuring distance only
    • G01S17/10—Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/32—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds
    • B60G11/34—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds including leaf springs
    • B60G11/46—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds including leaf springs and also fluid springs
    • B60G11/465—Resilient suspensions characterised by arrangement, location or kind of springs having springs of different kinds including leaf springs and also fluid springs with a flexible wall
    • 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
    • B60G17/01933—Velocity, e.g. relative velocity-displacement sensors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
    • 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
    • B60G2202/40—Type of actuator
    • B60G2202/41—Fluid actuator
    • B60G2202/412—Pneumatic actuator
    • 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
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/11—Mounting of sensors thereon
    • B60G2204/111—Mounting of sensors thereon on pneumatic springs
    • 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
    • B60G2401/00—Indexing codes relating to the type of sensors based on the principle of their operation
    • B60G2401/14—Photo or light sensitive means, e.g. Infrared
    • 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
    • B60G2600/602—Signal noise suppression; Electronic filtering means high pass
    • 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

Abstract

Un sensore d'altezza comprende una coppia di elementi fotoemettitori disposti in posizioni distanziate a distanze diverse da una superficie che si desidera misurare, gli elementi emettendo alternativamente raggi di luce ed un elemento fotoricettore per ricevere un raggio di luce generato da ciascun elemento fotoemettitore e riflesso dalla superficie misurata, l'elemento producendo un segnale corrispondente alla quantità di luce ricevuta. Il segnale fornito in uscita dall'elemento fotoricettore è convertito logaritmicamente mediante un circuito convertitore logaritmico. L'uscita di esso ha pertanto le sue componenti in corrente continua rimosse mediante un filtro. Il valore, coprente l'escursione da picco a picco delle componenti di corrente alternata, rimanenti è uguale al valore ottenuto sottraendo un valore convertito logaritmicamente del segnale fornito in uscita dall'elemento fotoricettore quando un elemento fotoemettitore è indotto a fornire un raggio di luce, da un valore convertito logaritmicamente del segnale fornito in uscita dall'elemento fotoricettore quando l'altro elemento fotoemettitore è indotto a fornire un raggio di luce. Raddrizzando tale uscita del filtro, è possibile rivelare l'altezza fino alla superficie misurata senza essere influenzati da polvere sulla superficie misurata sull'uscita dell'elemento fotoricevitore.
ITMI921965A 1991-08-09 1992-08-07 Sensore d'altezza, in particolare per veicoli, e cuscino pneumatico IT1256033B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3200453A JP3069408B2 (ja) 1991-08-09 1991-08-09 高さセンサ及び空気ばね

Publications (3)

Publication Number Publication Date
ITMI921965A0 ITMI921965A0 (it) 1992-08-07
ITMI921965A1 ITMI921965A1 (it) 1994-02-07
IT1256033B true IT1256033B (it) 1995-11-21

Family

ID=16424558

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI921965A IT1256033B (it) 1991-08-09 1992-08-07 Sensore d'altezza, in particolare per veicoli, e cuscino pneumatico

Country Status (3)

Country Link
US (1) US5229829A (it)
JP (1) JP3069408B2 (it)
IT (1) IT1256033B (it)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3187496B2 (ja) * 1992-01-09 2001-07-11 スタンレー電気株式会社 高さセンサ及び空気ばね
SE511482C2 (sv) * 1998-02-05 1999-10-04 Kihlberg Ab Josef Anordning vid indrivningsverktyg innefattande ett säkerhetsarrangemang
EP1395453B1 (en) 2001-05-25 2011-03-23 Haldex Brake Corporation Trailing arm suspension and height control system with motorized valve therefor
US7221437B1 (en) * 2002-08-20 2007-05-22 Schaefer Philip R Method and apparatus for measuring distances using light
US7123351B1 (en) 2002-08-20 2006-10-17 Schaefer Philip R Method and apparatus for measuring distances using light
US8306696B2 (en) * 2003-04-17 2012-11-06 Driveright Holdings, Ltd. Method and system for aligning a vehicle with an artificial horizon
US7104547B2 (en) * 2003-04-17 2006-09-12 Bfs Diversified Products, Llc Method and system for aligning a stationary vehicle with an artificial horizon
US7684016B1 (en) 2003-08-15 2010-03-23 Schaefer Philip R Method and apparatus for measuring distances using light
US20050077691A1 (en) * 2003-10-14 2005-04-14 Witters Allen L. Suspension structure with internal height sensor assembly
US7261304B2 (en) * 2004-01-27 2007-08-28 Hadley Products Vehicle leveling system
US7744099B2 (en) * 2004-11-04 2010-06-29 Driveright Holdings, Ltd. Method and system for adjusting a vehicle aligned with an artificial horizon
US7490817B2 (en) * 2005-01-04 2009-02-17 Bfs Diversified Products Llc Distance indicating system and method
US7364144B2 (en) 2005-04-27 2008-04-29 Bfs Diversified Products, Llc Sensing and communication system and method
US7420462B2 (en) * 2006-01-23 2008-09-02 Bfs Diversified Products, Llc Air spring distance indicating system and method
US7733239B2 (en) * 2006-05-08 2010-06-08 Bfs Diversified Products, Llc Distance determining system and method
US8155835B2 (en) * 2008-02-21 2012-04-10 Driveright Holdings, Ltd. Vehicle chassis height adjustment method and system
US20110093239A1 (en) * 2009-10-21 2011-04-21 Holbrook Gregory A Vehicle weight sensing methods and systems
KR20120113419A (ko) * 2011-04-05 2012-10-15 삼성전자주식회사 발광소자 모듈 및 면광원 장치
US8988660B2 (en) * 2011-06-29 2015-03-24 Silicon Laboratories Inc. Optical detector
US9101519B2 (en) 2013-02-07 2015-08-11 Dallas Smith Corporation Leveling ramp for a wheelchair
EP3006891B1 (en) * 2014-10-10 2019-04-03 Torque and More (TAM) GmbH Air spring with a distance measurement arrangement using infrared
CN106627633A (zh) * 2016-12-09 2017-05-10 中车长春轨道客车股份有限公司 光电式二系悬挂高度监控调整装置及含有该装置的空簧结构
CN109109601A (zh) * 2018-09-10 2019-01-01 燕山大学 基于车辆位姿偏差的惯性调控主动悬挂控制系统及控制方法
WO2020060768A1 (en) * 2018-09-18 2020-03-26 Firestone Industrial Products Company, Llc Internal damper sensors as well as damper assemblies and suspension systems including same

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63259403A (ja) * 1986-03-31 1988-10-26 Nankai Rikagaku Kiki Seisakusho:Kk 車高測定装置
JPS62232501A (ja) * 1986-04-01 1987-10-13 Bridgestone Corp 磁気式車高測定装置
US4752799A (en) * 1986-07-07 1988-06-21 Honeywell Inc. Optical proximity sensing optics
JPH0616087B2 (ja) * 1987-09-22 1994-03-02 スタンレー電気株式会社 光電検出装置
US4817922A (en) * 1987-10-23 1989-04-04 The Goodyear Tire & Rubber Company Airspring height sensor
US4798369A (en) * 1987-11-03 1989-01-17 The Firestone Tire & Rubber Company Ultrasonic air spring system
EP0419082B1 (en) * 1989-09-21 1996-04-17 Stanley Electric Corporation Optical distance gauging apparatus

Also Published As

Publication number Publication date
US5229829A (en) 1993-07-20
JPH0542809A (ja) 1993-02-23
ITMI921965A1 (it) 1994-02-07
JP3069408B2 (ja) 2000-07-24
ITMI921965A0 (it) 1992-08-07

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Legal Events

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0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970826