WO2007115729A1 - Systeme de suspension pour un siege de vehicule - Google Patents

Systeme de suspension pour un siege de vehicule Download PDF

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Publication number
WO2007115729A1
WO2007115729A1 PCT/EP2007/002961 EP2007002961W WO2007115729A1 WO 2007115729 A1 WO2007115729 A1 WO 2007115729A1 EP 2007002961 W EP2007002961 W EP 2007002961W WO 2007115729 A1 WO2007115729 A1 WO 2007115729A1
Authority
WO
WIPO (PCT)
Prior art keywords
spring
spring system
damping force
shock absorber
speed
Prior art date
Application number
PCT/EP2007/002961
Other languages
German (de)
English (en)
Other versions
WO2007115729B1 (fr
Inventor
Lutz Meyer
Henning Meyer
Original Assignee
Isringhausen Gmbh & Co. Kg
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 Isringhausen Gmbh & Co. Kg filed Critical Isringhausen Gmbh & Co. Kg
Publication of WO2007115729A1 publication Critical patent/WO2007115729A1/fr
Publication of WO2007115729B1 publication Critical patent/WO2007115729B1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/50—Seat suspension devices
    • B60N2/52—Seat suspension devices using fluid means
    • B60N2/525—Seat suspension devices using fluid means using gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/50—Seat suspension devices
    • B60N2/501—Seat suspension devices actively controlled suspension, e.g. electronic control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/50—Seat suspension devices
    • B60N2/502—Seat suspension devices attached to the base of the seat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/50—Seat suspension devices
    • B60N2/505—Adjustable suspension including height adjustment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/50—Seat suspension devices
    • B60N2/52—Seat suspension devices using fluid means
    • B60N2/522—Seat suspension devices using fluid means characterised by dampening means

Definitions

  • the invention relates to a spring system for a vehicle seat with a vibrating part, with a fixed part and a spring arranged therebetween.
  • a vehicle seat in the context of this application is in addition to a seat for a motor vehicle, for example, a car, a truck or other commercial vehicle, a seat for a rail vehicle, such as a train, as well as for an aircraft, such as an aircraft understood .
  • various suspension systems are known. Which is arranged between a stationary part, which is regularly connected to the chassis of the vehicle, and a part vibrating thereto.
  • springs for this purpose tensile, pressure, rubber, leaf and also air springs are used.
  • valve controls that automatically adjust the counterforce of the air suspension.
  • suspension systems are known in which a height adjustment is possible. In the case of air-sprung seats, this is regularly achieved by changing the control points of the valve control.
  • shock absorbers are used.
  • Conventional shock absorbers have a damping force that increases approximately proportionally with the speed with which a piston in the damper is moved relative to its housing. The result is a damping force proportional to the speed.
  • Shock absorbers are also known which have a development of the damping force slightly above this proportionality as a function of the speed of the shock absorber: the doubling of the damping For these shock absorbers, the speed of the fender produces almost three times the damping force on the shock absorber.
  • the object of the invention is therefore to achieve a cost-effective improvement of the vibration isolation while maintaining a good driveability of the vehicle.
  • the highly progressive shock absorber generates significantly higher forces for larger movements - higher rider weight or stronger background stimuli - all under the same conditions as a conventional shock absorber. This stops the swinging part. Avoid and too large vibration paths, which can affect the controllability of the vehicle, do not take place.
  • an advantageous development of the invention provides that the increase in the damping force is at least quadratic, preferably with an exponent between 2 and 10, to the speed. With an exponent at the lower end of the preferred range, namely 2, a doubling damping force is obtained when the speed is doubled. This causes the damping force in the lower part of the speed is still oriented relatively close to the linear course and then moves steeply upward and solves the problems formulated in the task particularly well.
  • an advantageous development of the invention provides that the increase in the damping force - the progressiveness - is performed differently in the pulling direction and in the printing direction.
  • the shock absorber is carried out in the direction of movement with higher progressivity, in which it acts on compression of the sprung system.
  • the force level of the shock absorber is designed differently in the pulling direction and in the pressure direction.
  • the shock absorber is carried out in that direction of movement with higher forces under otherwise identical conditions in which it acts during compression of the sprung system.
  • a further advantageous development of the invention provides that the increase in the damping force is also path-dependent. This avoids unintentionally causing a Impact of swinging part comes when the speed of the vibrating part is low.
  • shock absorber is adjustable. As a result, individual needs of the driver or of the ground to be traveled can be addressed and a specific adjustment can be made.
  • a further advantageous embodiment of the invention provides that the increase in the damping force is adjustable. This makes it possible, not only with a single predetermined known exponent to generate the damping force in response to the speed of the vibrating part but to respond to individual circumstances. For example, in a heavy person on the vehicle seat, a steeper increase in the damping force can be set than in a lighter occupant.
  • an air spring with an air volume is used.
  • Such springs are well known and can be equipped with the additional features described below, which leads to the advantages given there.
  • a further advantageous development of the invention provides that the air volume is connected via a line with an additional air volume. As a result, a very flat spring characteristic of the air spring is achieved in a very advantageous manner.
  • a further advantageous embodiment of the invention provides that in the line a throttle is installed. This ensures that the air quantity is exchanged between the air volume and the additional air volume almost free of resistance during low oscillating movements and throttling takes place with larger oscillating movements. As a result, performed by additional damping work, which prevents the building up of the vehicle seat with great excitement or heavy rider weight.
  • Figure 1 is a schematic representation of an inventive spring system in a vehicle seat
  • Figure 2 is a characteristic of a shock absorber according to the invention and a characteristic of a conventional shock absorber with speed-proportional forces, wherein the damping forces are plotted against the speed.
  • FIG. 1 shows a vehicle seat which has a fixed part 3.
  • This fixed part 3 is connected to the chassis (not shown) of a vehicle - here a commercial vehicle (not shown) - connected. Movable to this fixed part 3, the vehicle seat on a vibrating part 2, which is connected to the fixed part 3 movable lent.
  • a spring 4 in the form of an air spring 7 is arranged between the fixed part 3 and the oscillating part 2.
  • the air volume 8 of the air spring 7 is connected via a line 9 with an additional air volume 5.
  • In line 9 is a throttle 6.
  • a shock absorber 1 between the fixed part 3 and arranged the vibrating part 2.
  • the shock absorber 1 has a housing, in a piston is moved. From the basic structure of such a shock absorber 1 is known in the art, so that does not need to be discussed in detail on the specific design.
  • the damping is effected by the shock absorber 1 according to the invention
  • the tuning of the damping forces F can be lower in the lower speed range. This leads to less stress on the driver due to vertical vibrations, without large oscillatory movements occurring at higher excitations, as would otherwise be the case in particular in connection with heavier drivers. As a result, the drivability and control of the vehicle is maintained in a wider range of applications without the need for expensive semi-active or active systems.
  • Another advantage of such a system according to the invention is that this technology can also be used in vehicle seats having a height adjustment integrated into the resilient system. This results from the fact that the damping forces F arise on the damper piston, which reciprocates in the damper housing. In contrast to path-dependent damper systems - with path-dependent progressivity - this technology can therefore also be used for systems with integrated height adjustment. This means that the advantages of the inventive shock absorber - in contrast to a path-dependent progressive shock absorber - which is not applicable to such a system - still be achieved.
  • the shock absorber has a soft area with lower forces around a fixed center position and higher forces outside this area with otherwise identical loading. conditions - ie speeds v - arise.
  • This soft middle range offers the advantage that excitations with low amplitudes lead to relatively low damping forces F even at higher frequencies and thus higher speeds v. This can be seen visually from FIG. 2 in the region around the zero point of the velocity v, since there is an approximately linear relationship between the velocity v and the damping force F in this region. Only with larger excitation amplitudes increase the damping forces F strong. In this way, an improvement in the vibration isolation in the higher-frequency range is achieved without allowing at low excitation frequencies and large amplitudes too large vibration paths. This avoids that the driveability or controllability of the vehicle is affected.
  • the inventive design of the spring system with a highly progressive shock absorber is also in seats that have nominally a fixed average swing position, can be used. This allows the advantages that are otherwise achieved in path-dependent damper systems can be used. This is especially true for manually adjusted center positions, as these can not be adjusted regularly enough.
  • the spring system according to the invention also has the advantage that there is a smooth transition between the soft region around the middle layer and the strong damping forces F in the outer region. As a result, unlike too great a difference in force or too short transitional area, vibrations which are perceived as highly unpleasant are not transmitted to the oscillating part 2 and thus to the seated person. LIST OF REFERENCE NUMBERS

Landscapes

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

Abstract

L'invention concerne un système de suspension pour un siège de véhicule comprenant une partie oscillante 2 avec une partie fixe 3 et un ressort 4 disposée entre elles. Conformément à l'invention, un amortisseur 1 est disposé entre la partie fixe 3 et la partie oscillante 2, sa forme d'amortissement F augmentant progressivement et fortement avec l'augmentation de la vitesse v de la partie oscillante 2 par rapport à la partie fixe 3.
PCT/EP2007/002961 2006-04-05 2007-04-02 Systeme de suspension pour un siege de vehicule WO2007115729A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610016047 DE102006016047B3 (de) 2006-04-05 2006-04-05 Federsystem für einen Fahrzeugsitz
DE102006016047.9 2006-04-05

Publications (2)

Publication Number Publication Date
WO2007115729A1 true WO2007115729A1 (fr) 2007-10-18
WO2007115729B1 WO2007115729B1 (fr) 2007-11-29

Family

ID=38069329

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/002961 WO2007115729A1 (fr) 2006-04-05 2007-04-02 Systeme de suspension pour un siege de vehicule

Country Status (2)

Country Link
DE (1) DE102006016047B3 (fr)
WO (1) WO2007115729A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107599911A (zh) * 2017-10-17 2018-01-19 王涵青 一种带有三级减震的汽车座椅
CN112172631A (zh) * 2020-09-18 2021-01-05 马鞍山贺辉信息科技有限公司 一种具有防护功能的货车外接坐垫

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009012515B4 (de) 2009-03-10 2018-11-22 Man Truck & Bus Ag Schwingungsdämpfer
DE102010026569B4 (de) 2009-07-28 2014-03-27 Grammer Aktiengesellschaft Regelungseinrichtung zur Reduzierung einer Schwingungsbewegung einer federkraftbeaufschlagten schwingenden Vorrichtung
DE102010010290B4 (de) 2010-03-04 2017-10-26 Grammer Aktiengesellschaft Fahrzeugsitz mit Gleitelement
DE102010035888B4 (de) 2010-08-30 2018-05-09 Grammer Ag Fahrzeugsschwingungsvorrichtung
DE102010045114B4 (de) * 2010-09-13 2019-12-19 Grammer Aktiengesellschaft Verfahren zum Betreiben einer Fahrzeugdämpfungseinrichtung für einen Fahrzeugsitz / eine Fahrzeugkabine und Fahrzeugdämpfungseinrichtung für einen Fahrzeugsitz / eine Fahrzeugkabine
DE102010054752B4 (de) 2010-09-13 2012-06-28 Grammer Aktiengesellschaft Gefederte Mehrpunktlagerung für Fahrzeuge mit Elastomerfederelement
DE102010048210B4 (de) 2010-10-13 2021-09-16 Grammer Aktiengesellschaft Fahrzeugsitz mit Fluidfeder
DE102010051325B4 (de) 2010-11-16 2020-11-26 Grammer Aktiengesellschaft Sitzfuß für einen Personensitz
DE102010055342B4 (de) 2010-12-21 2015-03-26 Grammer Aktiengesellschaft Horizontale Sitzfedereinrichtung
DE102010055344A1 (de) 2010-12-21 2012-06-21 Grammer Aktiengesellschaft Horizontale Sitzverstellung mit Stellglied
DE102011015364B4 (de) 2011-03-28 2012-10-11 Grammer Aktiengesellschaft Fahrzeugsitz mit einer Tragstruktur
UA101594C2 (ru) * 2012-12-11 2013-04-10 Институт Технической Механики Национальной Академии Наук Украины И Государственного Космического Агентства Украины Подвеска сиденья транспортного средства

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3951373A (en) * 1975-02-18 1976-04-20 Milsco Manufacturing Company Vehicle seat having valve controlled air spring
EP0739766A2 (fr) * 1995-04-27 1996-10-30 The Lubrizol Corporation Procédé de contrÔle d'un mouvement utilisant un amortisseur réglable
US5570866A (en) * 1993-08-30 1996-11-05 Paccar Inc Seat suspension
US5652704A (en) * 1995-09-12 1997-07-29 Lord Corporation Controllable seat damper system and control method therefor
US6082715A (en) * 1999-03-09 2000-07-04 Navistar International Transportation Corp Integrated semi-active seat suspension and seat lockup system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3951373A (en) * 1975-02-18 1976-04-20 Milsco Manufacturing Company Vehicle seat having valve controlled air spring
US5570866A (en) * 1993-08-30 1996-11-05 Paccar Inc Seat suspension
EP0739766A2 (fr) * 1995-04-27 1996-10-30 The Lubrizol Corporation Procédé de contrÔle d'un mouvement utilisant un amortisseur réglable
US5652704A (en) * 1995-09-12 1997-07-29 Lord Corporation Controllable seat damper system and control method therefor
US6082715A (en) * 1999-03-09 2000-07-04 Navistar International Transportation Corp Integrated semi-active seat suspension and seat lockup system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107599911A (zh) * 2017-10-17 2018-01-19 王涵青 一种带有三级减震的汽车座椅
CN112172631A (zh) * 2020-09-18 2021-01-05 马鞍山贺辉信息科技有限公司 一种具有防护功能的货车外接坐垫

Also Published As

Publication number Publication date
DE102006016047B3 (de) 2007-07-26
WO2007115729B1 (fr) 2007-11-29

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