FR3090499B1 - TWO OPERATING MODES PNEUMATIC SUSPENSION WITH CASCADE AIR CELLS - Google Patents

TWO OPERATING MODES PNEUMATIC SUSPENSION WITH CASCADE AIR CELLS Download PDF

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Publication number
FR3090499B1
FR3090499B1 FR1873849A FR1873849A FR3090499B1 FR 3090499 B1 FR3090499 B1 FR 3090499B1 FR 1873849 A FR1873849 A FR 1873849A FR 1873849 A FR1873849 A FR 1873849A FR 3090499 B1 FR3090499 B1 FR 3090499B1
Authority
FR
France
Prior art keywords
volume
suspension
operating modes
air cells
pneumatic 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.)
Active
Application number
FR1873849A
Other languages
French (fr)
Other versions
FR3090499A1 (en
Inventor
Vincent Hernette
Jean Louis Bouvin
Xavier Moreau
André Benine-Neto
Alain Oustaloup
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.)
Stellantis Auto Sas Fr
Original Assignee
PSA Automobiles SA
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 PSA Automobiles SA filed Critical PSA Automobiles SA
Priority to FR1873849A priority Critical patent/FR3090499B1/en
Publication of FR3090499A1 publication Critical patent/FR3090499A1/en
Application granted granted Critical
Publication of FR3090499B1 publication Critical patent/FR3090499B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • B60G17/0152—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 action on a particular type of suspension unit
    • B60G17/0155—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 action on a particular type of suspension unit pneumatic unit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/26—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs
    • B60G11/30—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs having pressure fluid accumulator therefor, e.g. accumulator arranged in vehicle frame
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
    • F16F9/04—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall
    • F16F9/049—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall multi-chamber units
    • 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
    • B60G2202/10—Type of spring
    • B60G2202/15—Fluid spring
    • B60G2202/154—Fluid spring with an accumulator
    • 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
    • B60G2202/20—Type of damper
    • B60G2202/24—Fluid damper
    • B60G2202/242—Pneumatic damper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/90—Maintenance
    • B60G2206/99—Suspension element selection procedure depending on loading or performance requirements, e.g. selection of damper, spring or bush
    • 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
    • B60G2400/80—Exterior conditions
    • B60G2400/82—Ground surface
    • B60G2400/821—Uneven, rough road sensing affecting vehicle body vibration
    • 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
    • B60G2400/80—Exterior conditions
    • B60G2400/82—Ground surface
    • B60G2400/824—Travel path sensing; Track monitoring
    • 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
    • B60G2401/00—Indexing codes relating to the type of sensors based on the principle of their operation
    • B60G2401/15—Doppler effect
    • 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
    • B60G2401/16—GPS track data
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2500/00—Indexing codes relating to the regulated action or device
    • B60G2500/20—Spring action or springs
    • B60G2500/204—Pressure regulating valves for air-springs
    • B60G2500/2041—Pressure regulating valves for air-springs for variable volume air springs, e.g. using accumulators as expansion chambers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2500/00—Indexing codes relating to the regulated action or device
    • B60G2500/20—Spring action or springs
    • B60G2500/22—Spring constant
    • 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
    • B60G2600/184—Semi-Active control 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
    • B60G2800/16—Running
    • B60G2800/162—Reducing road induced vibrations

Landscapes

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

Abstract

L’invention concerne une suspension pneumatique (1) comprenant un vérin pneumatique destiné à être interposé entre une portion d’un véhicule (7) roulant et un appui au sol (6) dudit véhicule, le vérin pneumatique présentant un volume interne (Vp) de réserve d’air. Le volume (Vp) est connecté pneumatiquement à au moins deux cellules (3a, 3b) comportant un volume d’air additionnel (V1, V2) respectif avec une restriction (R1, R2) disposée à l’entrée de chacun des volumes additionnels (V1, V2) positionnés en cascade sur une conduite (5) débouchant dans le volume (Vp), une électrovanne (4), positionnée entre le volume (Vp) et les volumes additionnels (V1, V2) des cellules (3a, 3b), fermant une circulation d’air dans la conduite (5) dans une première position correspondant à un mode à raideur augmentée de la suspension, et l’ouvrant dans au moins une deuxième position correspondant à un mode d’amortissement doux de la suspension. FIGURE 4The invention relates to a pneumatic suspension (1) comprising a pneumatic cylinder intended to be interposed between a portion of a rolling vehicle (7) and a support on the ground (6) of said vehicle, the pneumatic cylinder having an internal volume (Vp) air supply. The volume (Vp) is pneumatically connected to at least two cells (3a, 3b) comprising a respective additional air volume (V1, V2) with a restriction (R1, R2) arranged at the inlet of each of the additional volumes ( V1, V2) positioned in cascade on a pipe (5) opening into the volume (Vp), a solenoid valve (4), positioned between the volume (Vp) and the additional volumes (V1, V2) of the cells (3a, 3b) , closing an air circulation in the pipe (5) in a first position corresponding to an increased stiffness mode of the suspension, and opening it in at least a second position corresponding to a soft damping mode of the suspension. FIGURE 4

FR1873849A 2018-12-21 2018-12-21 TWO OPERATING MODES PNEUMATIC SUSPENSION WITH CASCADE AIR CELLS Active FR3090499B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1873849A FR3090499B1 (en) 2018-12-21 2018-12-21 TWO OPERATING MODES PNEUMATIC SUSPENSION WITH CASCADE AIR CELLS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1873849A FR3090499B1 (en) 2018-12-21 2018-12-21 TWO OPERATING MODES PNEUMATIC SUSPENSION WITH CASCADE AIR CELLS

Publications (2)

Publication Number Publication Date
FR3090499A1 FR3090499A1 (en) 2020-06-26
FR3090499B1 true FR3090499B1 (en) 2021-06-18

Family

ID=66641095

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1873849A Active FR3090499B1 (en) 2018-12-21 2018-12-21 TWO OPERATING MODES PNEUMATIC SUSPENSION WITH CASCADE AIR CELLS

Country Status (1)

Country Link
FR (1) FR3090499B1 (en)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL99753C (en) * 1959-02-24
IT1178992B (en) * 1984-06-27 1987-09-16 Fiat Auto Spa VARIABLE STRENGTH PNEUMATIC SPRING PARTICULARLY FOR VEHICLE SUSPENSIONS
US5255935A (en) * 1990-03-09 1993-10-26 Nippondenso Co., Ltd. Air suspension system
DE10007357A1 (en) * 2000-02-18 2001-08-23 Volkswagen Ag Running gear regulation device for motor vehicle acquires road information from processing system containing navigation system, sets up running gear or its parts before traveling road section
DE10236621B4 (en) * 2002-08-09 2005-02-03 Daimlerchrysler Ag Air suspension system of a McPherson strut
DE102006027442A1 (en) 2006-06-12 2007-12-13 Continental Aktiengesellschaft Method for controlling a level control system
WO2014060123A1 (en) * 2012-10-18 2014-04-24 Continental Teves Ag & Co. Ohg Pneumatic spring module
DE102014208318B4 (en) * 2014-05-05 2019-09-12 Volkswagen Aktiengesellschaft Method and device for controlling the dampers of a motor vehicle
FR3049226B1 (en) * 2016-03-25 2019-06-21 Peugeot Citroen Automobiles Sa HYDRAULIC SUSPENSION SYSTEM OF A VEHICLE

Also Published As

Publication number Publication date
FR3090499A1 (en) 2020-06-26

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Owner name: STELLANTIS AUTO SAS, FR

Effective date: 20240423