WO1997006023A1 - Agencement de suspension pour vehicule - Google Patents

Agencement de suspension pour vehicule Download PDF

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Publication number
WO1997006023A1
WO1997006023A1 PCT/AU1996/000493 AU9600493W WO9706023A1 WO 1997006023 A1 WO1997006023 A1 WO 1997006023A1 AU 9600493 W AU9600493 W AU 9600493W WO 9706023 A1 WO9706023 A1 WO 9706023A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle
air
riser
wheels
leaf spring
Prior art date
Application number
PCT/AU1996/000493
Other languages
English (en)
Inventor
Gregory Sudomlak
Original Assignee
Gregory Sudomlak
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 Gregory Sudomlak filed Critical Gregory Sudomlak
Priority to AU66074/96A priority Critical patent/AU6607496A/en
Publication of WO1997006023A1 publication Critical patent/WO1997006023A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
    • B60G21/10—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces not permanently interconnected, e.g. operative only on acceleration, only on deceleration or only at off-straight position of steering
    • 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
    • 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
    • B60G17/04—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics
    • B60G17/052—Pneumatic spring characteristics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/30—Rigid axle suspensions
    • 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
    • B60G2202/11—Leaf spring
    • 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
    • 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
    • B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
    • B60G2400/50—Pressure
    • B60G2400/51—Pressure in suspension unit
    • B60G2400/512—Pressure in suspension unit in spring
    • B60G2400/5122—Fluid spring
    • B60G2400/51222—Pneumatic
    • 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
    • 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
    • B60G2600/04—Means for informing, instructing or displaying
    • 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
    • B60G2600/18—Automatic control means
    • 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
    • B60G2600/20—Manual control or setting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
    • B60G2800/01—Attitude or posture control
    • B60G2800/019—Inclination due to load distribution or road gradient

Definitions

  • This invention relates to motor vehicles which use leaf spring suspensions for both front and back wheels.
  • Leaf springs are necessarily used in a number of applications where heavier loads are to be carried. However, there are implicit difficulties with leaf springs including the fact that leaf springs can be individually bent during use for instance during exceptionally hard usage. This then leaves the supported chassis to be offset with a result that steering, load capacity because one part will be taking a greater load than another, tyre wear and general stability of the vehicle can all be affected adversely. Further because such bending will normally occur where it will not be convenient or even possible to repair directly, the result will be that the vehicle may be used with distorted suspension for some time.
  • the invention can therefore be said to reside in a vehicle having a suspension arrangement where the vehicle has at a front of the vehicle a front wheels support arrangement and at a rear of the vehicle a rear wheels support arrangement, each wheels support arrangement including a pair of wheels at each side at both the front and the back of the vehicle each pair of wheels being supported and attached by an axle and a leaf spring supported and attached between each axle and a chassis of the vehicle adjacent each wheel, each leaf spring having an associated air riser extending between the chassis of the vehicle and the corresponding axle so as to be effective in providing supplementary support with respect to the support provided by the respective leaf spring, each air riser having a valve means permitting individual pressurisation of the air riser from an external source of pressurised gas, the arrangement providing for separate extent of pressurisation in each air riser independently of the other air risers.
  • each air riser has an associated pressure detector and display provided in the cabin of the motor vehicle and then it is possible to do two things, namely it is first possible to adjust that pressure from the cabin by having some accessible valves and a supply of air at pressure but it is also possible to monitor the range of pressure variation during its usage. In fact it is the range of movement that will give the first indicator as to the need for adjustment and it further must be remembered that as the vehicle is being used, air heats up and therefore will rise to a different pressure during this period of usage.
  • each of the leaf springs With their associated air riser and to find a best tuned position for each of these which can take into account the temperature of the day, the length of a trip, the extent and location of any load on the vehicle and if necessary the extent of clearance that might be needed.
  • adjustment of one of the air risers will have an effect upon the others, for instance take a left front air riser which is increased in pressure.
  • FIG 1 illustrates in schematic form a vehicle in outline incorporating an embodiment of the invention.
  • FIG 2 is a schematic of the elements used to achieve the embodiment.
  • a suspension arrangement of a vehicle 1 includes leaf springs 2 and 3 for the front wheels 4 and 5 and leaf springs 6 and 7 for rear wheels 8 and 9 and air risers 10, 11 , 12 and 13 associated with each leaf spring 2 and 3, and 6 and 7 respectively.
  • the vehicle 1 is supported by two axles 14 and 15 on which are mounted the pair of wheels 4, 5 and 8, 9 respectively.
  • each axle 14 and 15 in association with respective leaf springs are secured the air risers 10, 11 , 12 and 13 which are secured between the chassis which is not specifically shown and the axle. These are mounted by brackets which are shown at 40 and 41 for the front air risers 10 and 11 but are not specifically shown for the air risers 12 and 13 which are secured behind the axle but are still attached directly to the axle 15.
  • Each air riser is independent from the other air risers so that each air riser can be individually accessed for supply of air at pressure through one way valves and further each air riser is connected to an air pressure detector and visual display which will show both the pressure of air in the separate risers and the change in pressure in a dynamic sense during use of each riser. Further each air riser can be either vented to atmosphere or pumped up further while the vehicle is in motion by having connections through an individual three way valve for each riser to a supply of air at pressure through a compressor supplying air to a plenum.
  • each riser 10, 11 , 12 and 13 one way air inlet valves 16, 17, 18 and 19 which connect through T-connectors 20, 21 , 22 and 23 to both the air riser and air pressure detectors and visual displays 24, 25, 26 and 27. These are located together on a common panel 28 which is located so as to be visually accessible for a driver in the vehicle 1.
  • a compressor 29 is controllable through a separate control switch 30 so as to provide air at sufficient pressure into plenum 31 which can be released into any individual air riser by operation of a respective three way control valve 32, 33, 34 and 35.
  • Each three way valve has one position which is closed, a second which is to vent air from the air riser to atmosphere and the third is to connect air at pressure from the plenum 31 into an individual air riser.
  • an over-ride valve (not shown) which connects all the air risers to the compressor to allow for the simultaneous equal adjustment of all the air risers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

L'invention porte sur un véhicule pourvu de ressorts à lames à l'avant et à l'arrière et comportant, en outre, des conduites montantes à air de compensation pour chaque roue avant et arrière du véhicule en liaison avec des indicateurs de pression d'air situés dans la cabine du véhicule. Le dispositif comporte également des organes permettant de régler la pression de chaque conduite à air indépendamment des autres de manière à pouvoir augmenter et réduire la pression, notamment lorsque le véhicule est en marche.
PCT/AU1996/000493 1995-08-07 1996-08-07 Agencement de suspension pour vehicule WO1997006023A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU66074/96A AU6607496A (en) 1995-08-07 1996-08-07 Vehicle suspension arrangement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPO0437 1995-08-07
AUPO043795 1995-08-07

Publications (1)

Publication Number Publication Date
WO1997006023A1 true WO1997006023A1 (fr) 1997-02-20

Family

ID=3794755

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1996/000493 WO1997006023A1 (fr) 1995-08-07 1996-08-07 Agencement de suspension pour vehicule

Country Status (1)

Country Link
WO (1) WO1997006023A1 (fr)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR523889A (fr) * 1920-02-10 1921-08-26 George Louis Rene Jean Messier Suspension pneumatique pour véhicules
FR1119322A (fr) * 1955-01-12 1956-06-19 Rech S Etudes Perfectionnement aux véhicules automobiles pour leur utilisation sur tous terrains
US2945702A (en) * 1957-09-09 1960-07-19 Chrysler Corp Combination air spring-leaf spring suspension
US2965389A (en) * 1957-05-09 1960-12-20 Gen Motors Corp Fluid suspension control mechanism
GB1349261A (en) * 1970-05-21 1974-04-03 Fichtel & Sachs Ag System for controlling the level of vehicles with spring operation of the control means
GB1358919A (en) * 1970-11-18 1974-07-03 Daimler Benz Ag Pneumatic suspension arrangements in vehicles
DE2311373A1 (de) * 1973-03-08 1974-09-12 Eylert Fahrzeugfab Vorrichtung zum ausrichten von koerpern, insbesondere fahrzeugaufbauten
US3836161A (en) * 1973-01-08 1974-09-17 Midland Ross Corp Leveling system for vehicles with optional manual or automatic control
GB2159107A (en) * 1984-05-22 1985-11-27 Mitsubishi Motors Corp Vehicle suspension apparatus
JPH0880722A (ja) * 1994-09-12 1996-03-26 Niigata Eng Co Ltd 車両の懸架装置

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR523889A (fr) * 1920-02-10 1921-08-26 George Louis Rene Jean Messier Suspension pneumatique pour véhicules
FR1119322A (fr) * 1955-01-12 1956-06-19 Rech S Etudes Perfectionnement aux véhicules automobiles pour leur utilisation sur tous terrains
US2965389A (en) * 1957-05-09 1960-12-20 Gen Motors Corp Fluid suspension control mechanism
US2945702A (en) * 1957-09-09 1960-07-19 Chrysler Corp Combination air spring-leaf spring suspension
GB1349261A (en) * 1970-05-21 1974-04-03 Fichtel & Sachs Ag System for controlling the level of vehicles with spring operation of the control means
GB1358919A (en) * 1970-11-18 1974-07-03 Daimler Benz Ag Pneumatic suspension arrangements in vehicles
US3836161A (en) * 1973-01-08 1974-09-17 Midland Ross Corp Leveling system for vehicles with optional manual or automatic control
DE2311373A1 (de) * 1973-03-08 1974-09-12 Eylert Fahrzeugfab Vorrichtung zum ausrichten von koerpern, insbesondere fahrzeugaufbauten
GB2159107A (en) * 1984-05-22 1985-11-27 Mitsubishi Motors Corp Vehicle suspension apparatus
JPH0880722A (ja) * 1994-09-12 1996-03-26 Niigata Eng Co Ltd 車両の懸架装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN; & JP,A,08 080 722 (NIGATA ENG. CO. LTD.) 26 March 1996. *

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