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WO2018184619A1 - Suspension double - Google Patents

Suspension double Download PDF

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Publication number
WO2018184619A1
WO2018184619A1 PCT/DE2018/100046 DE2018100046W WO2018184619A1 WO 2018184619 A1 WO2018184619 A1 WO 2018184619A1 DE 2018100046 W DE2018100046 W DE 2018100046W WO 2018184619 A1 WO2018184619 A1 WO 2018184619A1
Authority
WO
WIPO (PCT)
Prior art keywords
leaf spring
air
vehicle
spring
suspension
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.)
Ceased
Application number
PCT/DE2018/100046
Other languages
German (de)
English (en)
Inventor
Mohammed ADIL DILLA
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE112018001878.4T priority Critical patent/DE112018001878A5/de
Publication of WO2018184619A1 publication Critical patent/WO2018184619A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • B60G17/005—Suspension locking arrangements
    • 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
    • B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
    • B60G17/027—Mechanical springs regulated by fluid means
    • B60G17/0275—Mechanical springs regulated by fluid means the mechanical spring being a leaf spring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D61/00—Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. four wheels in diamond pattern
    • B62D61/12—Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. four wheels in diamond pattern with variable number of ground engaging wheels, e.g. with some wheels arranged higher than others, or with retractable wheels
    • 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
    • B60G2204/12—Mounting of springs or dampers
    • B60G2204/126—Mounting of pneumatic springs
    • 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
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/46—Means for locking the suspension
    • B60G2204/4604—Means for locking the suspension mechanically, e.g. using a hook as anticreep mechanism
    • 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
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/47—Means for retracting the suspension
    • 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
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/47—Means for retracting the suspension
    • B60G2204/4702—Means for retracting the suspension pneumatically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2500/00—Indexing codes relating to the regulated action or device
    • B60G2500/30—Height or ground clearance

Definitions

  • the invention relates to an axle suspension for the wheels of a vehicle according to the preamble of patent claim 1.
  • the wheels of vehicles such as. As cars or trucks are usually spring mounted relative to the chassis of the vehicle.
  • the suspension includes all components that connect the wheel axles and the chassis elastically with each other. The suspension improves ride comfort by protecting the chassis and thus both the occupants and the load from shocks caused by bumps. At the same time, it ensures as even as possible a ground grip of the wheels and therefore a good one
  • the suspension should be as fail-safe as possible even with a breakage of the leaf spring or any other component of the suspension or a puncture and thus allow a safe continuation of travel by pressing a button. Therefore, this invention is very advantageous for environmental, economic and safety reasons.
  • a suspension for a vehicle which comprises both a leaf spring and an air spring with an air bellows, wherein the leaf spring and the air spring are arranged mechanically in series.
  • Leaf spring is also connected on one side via a hinge to the chassis of the vehicle. As a result, it can be moved vertically in the
  • each wheel can be selectively extended downwards or raised by varying the air pressure of the air suspension. Lifting individual axles reduces wear on the wheels and brake components and minimizes fuel consumption.
  • the air suspension is preferably designed such that a wheel can be lowered by a corresponding adjustment of the air pressure in the air bellows of the associated axle.
  • the combined suspension is designed so that a spring-loaded wheel can be lowered by increasing the air pressure so far that the leaf spring pivots downward.
  • the suspension according to the invention is preferably attached to an axle of the vehicle. You could optionally but also on another component of the
  • Vehicles in the sense of the invention may be, for example, trucks, semitrailers or even trailers, in particular those with multiple axles.
  • the suspension according to the invention is preferably used on non-driven.
  • the leaf spring is preferably arranged in a longitudinal direction of the vehicle.
  • the above-mentioned joint is in this case preferably in front, such. B. at a front end of the leaf spring.
  • the leaf spring On the opposite side of the joint (ie, eg rear), the leaf spring is preferably mounted on a stop on the chassis. This stop preferably defines an upper position of the leaf suspension. If in this position the pressure prevailing in the air spring pressure increases, the leaf spring can pivot down, whereby the axis attached thereto lowered and the
  • Vehicle is raised and brought to a desired level.
  • the level can also be regulated.
  • the leaf spring is releasably fixed in the upper position.
  • a latching mechanism for fixing and releasing the leaf spring, for example, a latching mechanism, a mechanical, hydraulic, electromagnetic or other known mechanism may be provided.
  • the suspension according to the invention preferably also comprises a damper which dampens a shock and pivoting movement of the sprung axle.
  • the damper is preferably arranged between a component of the chassis, such as an axle carrier or wheel carrier, and the chassis.
  • a suspension provided on a first axis of the vehicle is preferably adjustable independently of other axle suspensions provided on other axles of the vehicle.
  • the air spring is preferably arranged above the leaf spring.
  • the air spring is attached at its upper end to the chassis of the vehicle.
  • the lower end of the air spring may, for. B. be attached to the leaf spring, an axle of the vehicle or to another component of the chassis.
  • the air spring is preferably fixed at the top and bottom by means of a joint.
  • the pivot axes of the joints are preferably aligned in different directions.
  • One of the joints can z. B. a pivoting movement about a horizontal transverse axis and the other joint allow a pivoting movement about a horizontal longitudinal axis.
  • the joints preferably each provide only a single degree of freedom.
  • the invention also relates to a vehicle (including, for example, a truck) with axle suspension, as described above by way of example.
  • the axle suspension according to the invention can be used on non-driven axles of vehicles, such. As trucks are used.
  • Fig. 1 a and 1 b is a side view of a suspension with a leaf spring and an air spring according to a first embodiment of the invention
  • Fig. 2 is a side view of a suspension with a leaf spring and an air spring according to a second embodiment of the invention
  • Fig. 3a is a side view of a semi-trailer in the loaded state on all wheels.
  • Fig. 3b is a side view of a semi-trailer in the partially loaded state with two wheels raised.
  • 3 c is a side view of a semi-trailer in the unloaded state with three wheels raised.
  • Fig.4 cross joints for a pivoting movement.
  • Figs. 1a and 1b show an embodiment of a suspension for a vehicle 1, such as a semitrailer or a truck trailer.
  • the suspension comprises in the illustrated embodiment, a leaf spring 8 and an air spring 14 with an air bladder 1 first
  • the leaf spring 8 and the air spring 14 are arranged one above the other in series. Both the leaf spring 8 and the air spring 14 are located above an axis 7, to which a wheel 4a-4d is attached.
  • the leaf spring 8 shown in Fig. 1 b is compared to the leaf spring 8 shown in Fig. 1 on the head to various possible arrangements
  • the air spring 14 and the Lucasbalg 1 1 is attached to the upper end 9 of the chassis 5 of the vehicle.
  • the lower end 10 of the air spring 14 and the bellows 1 1 is attached to the leaf spring 8, but it could be z. B. also be attached to the axis 7.
  • the leaf spring 8 extends substantially in a longitudinal direction L of the vehicle 1 and is articulated at the front end via a hinge 12 to the chassis 5.
  • the leaf spring 8 can thus pivot about an axis extending in the transverse direction up and down.
  • the leaf spring 8 is further fastened by means of a fastening element 6 on the axis 7.
  • the leaf spring 8 In the illustrated state of the suspension, the leaf spring 8 is located at its rear end to a provided on the chassis 5 stop 15, which defines an upper position of the leaf spring 8 and the suspension.
  • the weight on the wheel (not shown) is taken up by both the leaf spring 8 and the air suspension 14 in this case.
  • the prevailing in the air spring 14 pressure can be changed to adjust the spring behavior as desired more or less taut or soft.
  • the leaf spring 8 is preferably fixed at its rear end in the upper position.
  • preferably corresponding means, such as a locking device 16 and a locking device are provided which
  • the leaf spring 8 preferably can be operated automatically. In the fixed state, the leaf spring 8 can not swing down; it is also held in the upper position by the pressure exerted by the damper 13. In the dissolved state, however, the leaf spring 8 is pivotable downwards by the pressure in the air bladder 1 1 is increased.
  • the damper 13 is further provided, which is mounted between the chassis 5 and the axle 7.
  • the leaf spring 8 is arranged below the axis 7.
  • the air spring 14 is located between the chassis 5 and the axis 7.
  • FIG. 3a shows a schematic representation of a semi-trailer 2 with four axles 7 in a loaded state. All wheels 4a-4d are in their upper position. That is, the leaf spring 8 abuts at its rear end against the provided on the chassis 5 stop 15 and is fixed in this position, as shown in Fig.1 a. In the air spring 14, more or less air pressure may be included as desired to realize either a harder or softer suspension.
  • the air bladder 1 1 then contracts and causes the leaf spring 8 to pivot upward, lifting the relevant wheel 4a-4d off the ground (if at least one other wheel 4a-4d is lowered).
  • FIG. 3b shows a schematic representation of the semitrailer 2 of FIG. 3a in a partially loaded state. As can be seen, the two middle wheels 4b, 4c are raised and the two outer wheels 4a and 4d are lowered.
  • FIG. 3 c shows a schematic representation of the semitrailer 2 of FIG. 3 a in an unloaded state. As can be seen, the three front wheels 4a, 4b and 4c are raised and the outer wheel 4d is lowered.
  • the leaf spring 8 is the
  • the air pressure in the air bellows 1 1 is increased, so that the leaf spring 8 pivots downward and the wheel 4 a, 4 b, 4 c or 4 d extends selectively down.
  • the other wheels remain in the upper position.
  • the locking mechanism remains closed, and the air pressure in the air bladder 1 1 is substantially reduced to ambient pressure or a lower pressure.
  • the vehicle 1 After the desired wheels 4a-4d have been lowered, the vehicle 1 is only supported by these wheels 4a-4d or the associated axles 7. The remaining wheels 4a-4d are lifted off the road. In this state, the suspension of the lowered wheels 4a-4d via the air spring 14, partially supported by the damper 13 and the associated leaf spring 8, which is connected at the front end via a hinge 12 to the chassis 5.
  • the leaf springs 8 and the damper 13 practice only a small
  • the air springs 14 of the wheels 4a-4d can preferably be controlled independently of each other. It is therefore possible to raise or lower individual wheels.
  • Fig. 4 finally shows a special embodiment of the suspension, in which the air spring 14 is connected at the top and bottom of a respective joint with the adjacent part.
  • One of the joints can z. B. a pivoting movement about a horizontal transverse axis (here the lower joint) and the other joint pivotal about a horizontal longitudinal axis (here the upper joint) allow.
  • the joints preferably each provide only a single

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

L'invention concerne une suspension pour un véhicule (1), la suspension comprenant un ressort à lames (8) et un ressort pneumatique (14) doté d'un soufflet à air (11). Selon l'invention, la suspension est conçue de telle sorte que le ressort à lames (8) et le ressort pneumatique (14) sont disposés mécaniquement en série et que le ressort à lames (8) est relié au châssis (5) du véhicule (1) sur un côté par le biais d'une articulation (12), de manière à pouvoir pivoter dans la direction verticale.
PCT/DE2018/100046 2017-04-06 2018-01-22 Suspension double Ceased WO2018184619A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112018001878.4T DE112018001878A5 (de) 2017-04-06 2018-01-22 Dual Federung

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE202017102046.0 2017-04-06
DE202017102046.0U DE202017102046U1 (de) 2017-04-06 2017-04-06 Federung für ein Fahrzeug mit einer Blattfeder und einer Luftfeder
DE102017127685.8 2017-11-23
DE102017127685.8A DE102017127685A1 (de) 2017-04-06 2017-11-23 Dual Federung

Publications (1)

Publication Number Publication Date
WO2018184619A1 true WO2018184619A1 (fr) 2018-10-11

Family

ID=59651074

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2018/100046 Ceased WO2018184619A1 (fr) 2017-04-06 2018-01-22 Suspension double

Country Status (2)

Country Link
DE (3) DE202017102046U1 (fr)
WO (1) WO2018184619A1 (fr)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB372488A (en) * 1931-03-20 1932-05-12 Morris Commercial Cars Ltd Improvements in and relating to suspension mechanism of selfpropelled vehicles
EP0160371A1 (fr) * 1984-03-20 1985-11-06 Norde Suspensions Limited Systèmes de suspension pour véhicule
EP0401100A1 (fr) * 1989-05-30 1990-12-05 S.E.S.R. - Societe Europeenne De Semi-Remorques Perfectionnements apportés aux suspensions de semi-remorques
DE9400393U1 (de) * 1994-01-12 1994-02-24 Eder GmbH, 83104 Tuntenhausen Anhängervorrichtung für ein Kraftfahrzeug
DE19952919A1 (de) * 1998-12-03 2000-06-08 Phoenix Ag Luftfedersystem
US20030025288A1 (en) * 2001-08-06 2003-02-06 Louie Petit Air cushion suspension assembly for use with over the road trucks
JP2003165321A (ja) * 2001-11-28 2003-06-10 Hino Motors Ltd サスペンション構造
JP2004338474A (ja) * 2003-05-14 2004-12-02 Hino Motors Ltd サスペンション構造
WO2005091699A1 (fr) * 2004-03-25 2005-10-06 Zf Friedrichshafen Ag Suspension pour une roue orientable de vehicule
JP2013119366A (ja) * 2011-12-09 2013-06-17 Ud Trucks Corp リフトアクスル装置

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB372488A (en) * 1931-03-20 1932-05-12 Morris Commercial Cars Ltd Improvements in and relating to suspension mechanism of selfpropelled vehicles
EP0160371A1 (fr) * 1984-03-20 1985-11-06 Norde Suspensions Limited Systèmes de suspension pour véhicule
EP0401100A1 (fr) * 1989-05-30 1990-12-05 S.E.S.R. - Societe Europeenne De Semi-Remorques Perfectionnements apportés aux suspensions de semi-remorques
DE9400393U1 (de) * 1994-01-12 1994-02-24 Eder GmbH, 83104 Tuntenhausen Anhängervorrichtung für ein Kraftfahrzeug
DE19952919A1 (de) * 1998-12-03 2000-06-08 Phoenix Ag Luftfedersystem
US20030025288A1 (en) * 2001-08-06 2003-02-06 Louie Petit Air cushion suspension assembly for use with over the road trucks
JP2003165321A (ja) * 2001-11-28 2003-06-10 Hino Motors Ltd サスペンション構造
JP2004338474A (ja) * 2003-05-14 2004-12-02 Hino Motors Ltd サスペンション構造
WO2005091699A1 (fr) * 2004-03-25 2005-10-06 Zf Friedrichshafen Ag Suspension pour une roue orientable de vehicule
JP2013119366A (ja) * 2011-12-09 2013-06-17 Ud Trucks Corp リフトアクスル装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"FAHRWERKTECHNIK : RADAUFHANGUNGEN", 1 January 1988, VOGEL BUCHVERLAG, W?rzburg (DE), ISBN: 978-3-8023-0738-6, article REIMPELL J: "FAHRWERKTECHNIK : RADAUFHANGUNGEN", pages: 48 - 49, XP055472015 *

Also Published As

Publication number Publication date
DE202017102046U1 (de) 2017-08-02
DE102017127685A1 (de) 2018-10-11
DE112018001878A5 (de) 2019-12-24

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