WO1988008593A1 - Dispositif de controle des vibrations dans des vehicules a moteur en marche - Google Patents

Dispositif de controle des vibrations dans des vehicules a moteur en marche Download PDF

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Publication number
WO1988008593A1
WO1988008593A1 PCT/DE1988/000245 DE8800245W WO8808593A1 WO 1988008593 A1 WO1988008593 A1 WO 1988008593A1 DE 8800245 W DE8800245 W DE 8800245W WO 8808593 A1 WO8808593 A1 WO 8808593A1
Authority
WO
WIPO (PCT)
Prior art keywords
wheel
vehicle
vibration
vibration sensor
sensor
Prior art date
Application number
PCT/DE1988/000245
Other languages
German (de)
English (en)
Inventor
F. Heinrich Lehn
Original Assignee
Lehn F Heinrich
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 Lehn F Heinrich filed Critical Lehn F Heinrich
Publication of WO1988008593A1 publication Critical patent/WO1988008593A1/fr

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Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
    • G07C5/0808—Diagnosing performance data
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M1/00—Testing static or dynamic balance of machines or structures
    • G01M1/14—Determining imbalance
    • G01M1/16—Determining imbalance by oscillating or rotating the body to be tested
    • G01M1/28—Determining imbalance by oscillating or rotating the body to be tested with special adaptations for determining imbalance of the body in situ, e.g. of vehicle wheels

Definitions

  • wheel vibrations In motor vehicle undercarriages, road grip can be reduced by wheel vibrations, and the latter and cardan shaft vibrations can significantly impair driving comfort. In the case of insufficiently balanced vehicles, resonance phenomena of the wheel vibrations occur primarily in the speed range between 80 and 120 km / h.
  • finish balancer method in which the vehicle wheels are used, is also used for wheel systems that are made up of several individually balanced parts and for which the tolerances of the individual residual unbalances can result in impermissibly high system residual unbalances be rebalanced on one level when assembled. It makes sense with this method that balancing is carried out in the subcritical range and that the damping does not change during the balancing process, that is to say as a function of the speed. Balancing in the subcritical range is generally possible because all rotating system parts are pre-balanced during the manufacturing process. However, the requirement that the damping must not change with the wheel speed is not met, in particular with more modern chassis. Rather, such trolleys are designed so that the damping changes with the speed.
  • This task is solved by creating a pre Direction for monitoring vibrations in motor vehicles during driving operation, in which selected system components rotating in relation to other chassis parts are monitored by means of at least one vibration sensor arranged on the bearing of the respective system component and the latter are operatively connected to a display device and / or a test adapter and in which A contactless speed and angle sensor as well as a circumferential marking are assigned to determine the position of unbalance for each monitored system component.
  • the device makes it possible to check the balance states of the selected rotating system components during driving operation and to determine the size and position (circumferential angle) of the unbalance vectors that occur in the presence of unbalances, to display them and to carry out a comparison with standard values, specifically for each monitored system component separately.
  • the standard values can be determined empirically using reference multi-mass systems in original motor vehicles with original components, and the standard values can be stored in electronic storage media.
  • the selected rotating system components can be cardan shafts or other cardan shafts, but in particular the vehicle wheels.
  • the necessary balancing weights according to mass and position to the system components which are subject to imbalance.
  • DE-OS 29 05 931 discloses a device for monitoring shock absorbers and tire air pressure of vehicle wheels, in which an acceleration sensor is arranged on a supporting component of each vehicle wheel to be monitored and each acceleration sensor is followed by at least one evaluation circuit and the output signals of the evaluation circuit continuously with setpoints and / or compared with each other.
  • DE-OS 35 41 494 Another device for tire pressure monitoring on vehicle wheels is known from DE-OS 35 41 494, in which a vibration meter is connected to parts which carry the respective vehicle wheel and vibrate with it during driving operation.
  • DE-OS 35 41 901 also discloses a method - and a device used to carry out the method - for the automated monitoring of the steering and wheel suspension geometry as well as the state of balance of rotating parts connected to the steering linkage of the respective motor vehicle, with those occurring on the steering by means of an inductive sensor Torsional vibrations can be determined.
  • an expedient embodiment provides that at least one vibration sensor is arranged on the wheel suspension of each vehicle wheel.
  • vibrations in a direction essentially perpendicular to the roadway are generally easily absorbed by the spring and damping elements, but impair the road grip of the wheels, vibrations acting in parallel planes to the roadway lead to vibrations which are perceived as extremely unpleasant in the passenger compartment and lead to damage other system parts up to their breakage.
  • at least one vibration sensor which is effective in a plane running approximately parallel to the roadway is arranged on the wheel suspension of each vehicle wheel.
  • two vibration sensors effective in a plane approximately parallel to the roadway can be arranged on the wheel suspension of each vehicle wheel at a distance from one another, which then enable the balance of the vehicle wheels to be checked in two planes and thus the determination of dynamic imbalances.
  • At least one vibration sensor which is effective approximately in the direction of movement of the associated shock absorber, is arranged on the wheel suspension of each vehicle wheel.
  • the vibration states determined by means of these vibration sensors can also be displayed as absolute or relative deviations from the norm or can be queried via an on-board adapter. This makes it possible, for example, to continuously monitor the shock absorber functions using an electronic processor.
  • At least one vibration sensor can also be arranged on the bearing of the cardan shaft (cardan shaft), which detects vibrations emanating from this functional element during driving and displays them.
  • Vibration sensors or sensors of the type to be used in the device according to the invention are known. It can be a (hard) quartz vibration sensor or (soft) inductive vibration sensor.
  • 1 shows a vehicle with horizontal vibration sensors arranged on the suspensions of all vehicle wheels in a side view
  • 2 shows the undercarriage of the vehicle in a plan view with an outline indicated by dash-dotted lines
  • Fig. 3 shows a vehicle wheel with indicated wheel suspension and spring damping in an enlarged side view compared to FIG. 1 and
  • FIG. 4 shows the vehicle wheel in a view looking in the direction of arrow IV in FIG. 3.
  • FIG. 1 and 2 schematically illustrate a car 10 with a chassis having four vehicle wheels 11 and a passenger compartment 12 accommodated on the latter.
  • the front and rear vehicle wheels are each connected to one another by wheel axles 13 in a manner not of further interest here.
  • wheel axles 13 can also be articulated axles.
  • Each vehicle wheel 11 forms a multi-mass system and comprises, inter alia, a wheel hub 15 rotatably mounted on a wheel bearing 14, a rim 16 which is exchangeably fastened to the wheel hub with a tire 17 received thereon, and a disc brake, the brake disc 18 of which is firmly connected to the wheel hub, while the brake shoes and their actuating means are not shown in the drawing.
  • Each wheel bearing 14 is fixed as a wheel suspension in the horizontal direction by means of links 20 which are articulated on the chassis of the vehicle, but are movable on the chassis in the vertical direction and is supported vertically on the chassis via a spring damping element 21.
  • Each vehicle wheel 11 is a horizontal vibration assigned sensor 22, which can be a - hard quartz vibration sensor or a - soft - inductive vibration sensor.
  • the vibration transducers are each arranged on a section 23 of the handlebars 20 that supports the mounting of the wheel bearings 14 on the chassis and surrounds the wheel bearing 14 in a U-shaped manner, specifically on the side of the wheel bearing concerned that is distant from the pivot point 19 of the respective link.
  • a mark 24 is attached to the inner rim edge of each vehicle wheel and a contactless inductive sensor 25 aligned with the respective brand is assigned to each vehicle wheel as a speed and angle sensor.
  • FIG. 4 shows two counterweights 26 clamped on the outer rim edge.
  • the wheel systems are continuously monitored while the vehicle is in operation, and any imbalances that occur are immediately displayed as an absolute amount and position, or relatively as a deviation from the norm, as soon as they occur. It will thus determine the same measurement data during running operation as in the prior art when balancing dismantled vehicle wheels on stationary balancing machines, but according to the invention taking into account the vehicle-specific data.
  • balancing weights can be attached to the rims of the vehicle wheels in a precise position. This usually happens on the outer rim edge. Balance weights can also be attached to the inner rim edge.
  • the particular advantage of the invention is that not only the rims and the tires mounted on them are balanced, but all the parts of a wheel system that are rotating while driving and that can cause imbalances, namely under Consideration of the respective vehicle typical data.
  • the invention can also be used for dynamic balancing if a further vibration sensor, for example in a measuring plane 31, is provided at an axial distance from the horizontal vibration sensor 22, which lies in a measuring plane 30.
  • a dynamic balancing of such a wheel system can then be carried out by applying balancing weights on the outer and inner rim edges, which extend in balancing planes 30, 31.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Balance (AREA)

Abstract

Des composants sélectionnés qui sont en rotation par rapport à d'autres parties du châssis d'un véhicule à moteur en marche sont contrôlés au moyen d'au moins un capteur de vibrations (22) agencé sur le support de montage (14, 20, 23) du composant correspondant (11). Les capteurs de vibrations sont fonctionnellement reliés à un dispositif d'affichage (28) et/ou à un adaptateur de contrôle (29). Afin de saisir la position de défauts d'équilibrage, un compte-tours et goniomètre (25) sans contact, de même qu'une échelle périphérique (24), sont attribués à chaque composant contrôlé.
PCT/DE1988/000245 1987-04-30 1988-04-23 Dispositif de controle des vibrations dans des vehicules a moteur en marche WO1988008593A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3714470.7 1987-04-30
DE19873714470 DE3714470A1 (de) 1987-04-30 1987-04-30 Verfahren und einrichtung zum ueberwachen von schwingungserregern in fahrwerkkomponenten bei kraftfahrzeugen waehrend des fahrbetriebs

Publications (1)

Publication Number Publication Date
WO1988008593A1 true WO1988008593A1 (fr) 1988-11-03

Family

ID=6326612

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1988/000245 WO1988008593A1 (fr) 1987-04-30 1988-04-23 Dispositif de controle des vibrations dans des vehicules a moteur en marche

Country Status (4)

Country Link
EP (1) EP0313596A1 (fr)
JP (1) JPH01503258A (fr)
DE (1) DE3714470A1 (fr)
WO (1) WO1988008593A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0421065A2 (fr) * 1989-09-30 1991-04-10 F. Heinrich Dr.-Ing. Lehn Procédé et dispositif de contrôle du système de roues d'une automobile pendant le roulement
WO1991014586A1 (fr) * 1990-03-24 1991-10-03 Alfred Teves Gmbh Procede et systeme de surveillance de la pression des pneus
EP0455993A2 (fr) * 1990-05-09 1991-11-13 Bayerische Motoren Werke Aktiengesellschaft Méthode et dispositif pour établir et contrÀ´ler l'état d'un composant technique d'un véhicule
EP0695653A1 (fr) * 1994-08-04 1996-02-07 Nippondenso Co., Ltd. Dispositif détecteur de la fréquence de résonance d'un pneumatique
GB2410803A (en) * 2004-02-05 2005-08-10 Ford Global Tech Llc Improvement for balancing a vehicle wheel
WO2007030037A1 (fr) * 2005-09-06 2007-03-15 Volvo Lastvagnar Ab Systeme et procede pour determiner les desequilibres d'au moins une roue d'un vehicule

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19947534C2 (de) * 1999-06-18 2002-06-13 Walter Hipp Verfahren und Vorrichtung zur Erfassung einer Unwucht an einem eine Felge aufweisenden Rad eines Kraftfahrzeugs während der Fahrt des Kraftfahrzeugs
DE102004037283B4 (de) * 2003-08-15 2018-04-05 Continental Teves Ag & Co. Ohg Verfahren zur Unterscheidung von Unwuchten an einer Felge und/oder einem Laufstreifen eines Fahrzeugrads
DE102007002259A1 (de) 2007-01-16 2008-07-17 GM Global Technology Operations, Inc., Detroit Kraftfahrzeug mit einem Fahrwerk

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1129477A (en) * 1964-11-27 1968-10-09 Hubert Roy Tebboth Improvements in and relating to rotary balancing apparatus
US3526873A (en) * 1965-02-18 1970-09-01 Lb Safety Devices Inc Device for indicating abnormal conditions in pneumatic tires
US3744321A (en) * 1971-12-16 1973-07-10 J Hauge Rotating body unbalance detector-locator
DE2351862A1 (de) * 1973-08-16 1975-04-17 Dittrich Josef Ueberwachung der fahrsicherheit von fahrzeugen
DE2905931A1 (de) * 1979-02-16 1980-08-28 Daimler Benz Ag Vorrichtung zur ueberwachung von stossdaempfern und reifenluftdruck von fahrzeugraedern
DE3017240A1 (de) * 1980-05-06 1981-11-12 Gebr. Hofmann Gmbh & Co Kg Maschinenfabrik, 6100 Darmstadt Verfahren zum bestimmen der unterwucht von an kraftfahrzeugen montierten raedern
DE3232919A1 (de) * 1982-09-04 1984-03-08 Bosch Gmbh Robert Schaltungsanordnung zur ueberwachung des reifendruckes an fahrzeugen
JPS61204530A (ja) * 1985-10-30 1986-09-10 Mitsubishi Heavy Ind Ltd 回転体の高速釣り合せ装置
JPH0671930A (ja) * 1992-08-27 1994-03-15 Casio Comput Co Ltd 静電記録装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE426379B (sv) * 1979-05-02 1983-01-17 Brajnandan Sinha Anordning for indikering av konditionen hos stotdempare vid hjulfordon
US4458535A (en) * 1983-04-06 1984-07-10 Juergens Jack W Drive defect detector

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1129477A (en) * 1964-11-27 1968-10-09 Hubert Roy Tebboth Improvements in and relating to rotary balancing apparatus
US3526873A (en) * 1965-02-18 1970-09-01 Lb Safety Devices Inc Device for indicating abnormal conditions in pneumatic tires
US3744321A (en) * 1971-12-16 1973-07-10 J Hauge Rotating body unbalance detector-locator
DE2351862A1 (de) * 1973-08-16 1975-04-17 Dittrich Josef Ueberwachung der fahrsicherheit von fahrzeugen
DE2905931A1 (de) * 1979-02-16 1980-08-28 Daimler Benz Ag Vorrichtung zur ueberwachung von stossdaempfern und reifenluftdruck von fahrzeugraedern
DE3017240A1 (de) * 1980-05-06 1981-11-12 Gebr. Hofmann Gmbh & Co Kg Maschinenfabrik, 6100 Darmstadt Verfahren zum bestimmen der unterwucht von an kraftfahrzeugen montierten raedern
DE3232919A1 (de) * 1982-09-04 1984-03-08 Bosch Gmbh Robert Schaltungsanordnung zur ueberwachung des reifendruckes an fahrzeugen
JPS61204530A (ja) * 1985-10-30 1986-09-10 Mitsubishi Heavy Ind Ltd 回転体の高速釣り合せ装置
JPH0671930A (ja) * 1992-08-27 1994-03-15 Casio Comput Co Ltd 静電記録装置

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Patent Abstracts of Japan, Band 11, Nr. 35 (P-542)(2482), 3. February 1987; & JP-A-61204530 (MITSUBISHI HEAVY IND LTD) 10. September 1986 *
Patent Abstracts of Japan, Band 9, Nr. 210 (P-383)(1933), 28. August 1985; & JP-A-6071930 (ANRITSU DENKI K.K.) 23. April 1985 *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0421065A2 (fr) * 1989-09-30 1991-04-10 F. Heinrich Dr.-Ing. Lehn Procédé et dispositif de contrôle du système de roues d'une automobile pendant le roulement
EP0421065A3 (en) * 1989-09-30 1991-08-14 F. Heinrich Dr.-Ing. Lehn Method and means for vibration control of the wheel system of a car while driving
WO1991014586A1 (fr) * 1990-03-24 1991-10-03 Alfred Teves Gmbh Procede et systeme de surveillance de la pression des pneus
EP0455993A2 (fr) * 1990-05-09 1991-11-13 Bayerische Motoren Werke Aktiengesellschaft Méthode et dispositif pour établir et contrÀ´ler l'état d'un composant technique d'un véhicule
EP0455993A3 (en) * 1990-05-09 1992-07-22 Bayerische Motoren Werke Aktiengesellschaft Method and device for establishing and checking the condition of a technical component of a vehicle
EP0695653A1 (fr) * 1994-08-04 1996-02-07 Nippondenso Co., Ltd. Dispositif détecteur de la fréquence de résonance d'un pneumatique
US5596141A (en) * 1994-08-04 1997-01-21 Nippondenso Co., Ltd. Tire resonance frequency detecting system having inter-wheel noise elimination and method for the same
GB2410803A (en) * 2004-02-05 2005-08-10 Ford Global Tech Llc Improvement for balancing a vehicle wheel
WO2007030037A1 (fr) * 2005-09-06 2007-03-15 Volvo Lastvagnar Ab Systeme et procede pour determiner les desequilibres d'au moins une roue d'un vehicule

Also Published As

Publication number Publication date
EP0313596A1 (fr) 1989-05-03
JPH01503258A (ja) 1989-11-02
DE3714470A1 (de) 1988-11-17

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