WO2002043976A1 - Suspension de vehicule a ressorts multilames avec barre antiroulis - Google Patents

Suspension de vehicule a ressorts multilames avec barre antiroulis Download PDF

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Publication number
WO2002043976A1
WO2002043976A1 PCT/US2000/032527 US0032527W WO0243976A1 WO 2002043976 A1 WO2002043976 A1 WO 2002043976A1 US 0032527 W US0032527 W US 0032527W WO 0243976 A1 WO0243976 A1 WO 0243976A1
Authority
WO
WIPO (PCT)
Prior art keywords
leaf
pair
spring
secondary spring
leaves
Prior art date
Application number
PCT/US2000/032527
Other languages
English (en)
Inventor
Michael F. Glass
John B. Reast
Original Assignee
Detroit Steel Products Co., Inc.
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 Detroit Steel Products Co., Inc. filed Critical Detroit Steel Products Co., Inc.
Priority to EP00982280A priority Critical patent/EP1337408A1/fr
Priority to AU2001219335A priority patent/AU2001219335A1/en
Priority to PCT/US2000/032527 priority patent/WO2002043976A1/fr
Publication of WO2002043976A1 publication Critical patent/WO2002043976A1/fr

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
    • B60G11/02—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only
    • B60G11/04—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only arranged substantially parallel to the longitudinal axis of the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/02—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only
    • B60G11/025—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only reparing devices for leaf springs
    • 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
    • B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
    • B60G21/04—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically
    • B60G21/05—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
    • B60G21/055—Stabiliser bars
    • 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
    • B60G2202/11—Leaf spring
    • B60G2202/112—Leaf spring longitudinally arranged
    • 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
    • B60G2202/13—Torsion 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
    • B60G2202/13—Torsion spring
    • B60G2202/135—Stabiliser bar and/or tube
    • 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
    • B60G2204/121—Mounting of leaf 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
    • B60G2204/80—Interactive suspensions; arrangement affecting more than one suspension unit
    • B60G2204/82—Interactive suspensions; arrangement affecting more than one suspension unit left and right unit on same axle
    • 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
    • B60G2204/80—Interactive suspensions; arrangement affecting more than one suspension unit
    • B60G2204/83—Type of interconnection
    • B60G2204/8302—Mechanical
    • 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
    • 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
    • B60G2800/012—Rolling condition

Definitions

  • This invention relates to a multi-leaf spring vehicle suspension by which a vehicle can be suspended from at least one pair of multi-leaf springs extending longitudinally of the vehicle on respective opposed sides thereof, with the axle of the vehicle being mounted generally centrally of the springs which are mounted to the vehicle, such as the frame or chassis thereof, at their opposed ends.
  • the springs isolate the vehicle from inputs into the suspension created by the roughness of the road surface upon which the vehicle travels.
  • the spring rate the load/deflection rate of the spring
  • the spring rate is a compromise between several factors. Two major factors are, firstly the softness to obtain the best isolation and, secondly, the need for higher stiffness to provide stability when the vehicle is cornering or is subjected to side forces, such as those generated by side winds.
  • this integral anti-roll device stabilises the leaf springs by changing the leaf spring deflection rates from the regular pin- jointed beam rate, when the springs deflect in the same direction, to a rigid, fixed or encastre end-mounted beam rate when the springs deflect in opposite directions, as they do when the vehicle rolls.
  • This fixed end beam rate can be up to four times as stiff as the pin-jointed beam rate.
  • the basic principle of this device is that when the springs deflect normally, in the same direction, the bar or tube has no effect and the springs have the normal conventional deflection rate.
  • the springs deflect in opposite directions.
  • the bar or tube torsionally resists such deflections, creating a fixing moment on to the springs, thus stiffening them as if the end fastenings were rigidly mounted.
  • the bar or tube can, only be effective on one leaf of any multi-leaf spring, because the bar or tube has to be rigidly mounted to the spring leaves and the spring leaf ends have to be able to move relative to each other..
  • the stabilisation applies to only one cantilever of one leaf.
  • An object of the present invention is to provide a multi-leaf spring suspension which overcomes, or at least substantially reduces, the disadvantages associated with the known leaf spring suspensions discussed above.
  • Another object of the present invention is to provide a multi-leaf spring suspension which can be mounted to a vehicle using conventional frame or vehicle chassis mounting devices, such as hanger brackets, and without special anti-roll system brackets, this being advantageous because, in many cases, hanger brackets form part of a common frame assembly which can also be used with stiffer, non anti-roll stabilised springs.
  • one aspect of the invention resides in a suspension for a vehicle, comprising;
  • each multi-leaf spring comprising a single, main spring leaf and a single secondary spring leaf;
  • anti-roll or stabilising means arranged to extend transversely of the frame or chassis of the associated vehicle and having its opposed ends connected rigidly to respective ones of the pair of secondary spring leaves;
  • torque transfer means which is connected rigidly to each of the pair of secondary spring leaves, which engages with each of the pair of main spring leaves and which is capable of relative longitudinal movement with respect thereto.
  • a vehicle including a frame or chassis and a suspension, comprising: a pair of multi-leaf springs extending longitudinally of the frame or chassis on respective opposed sides thereof, each multi-leaf spring comprising a single, main spring leaf and a single secondary spring leaf,
  • anti-roll or stabilising means extending transversely of the frame or chassis and having its opposed ends connected rigidly to respective ones of the pair of secondary spring leaves;
  • torque transfer means which is connected rigidly to each of the pair of secondary spring leaves, which engages with each of the pair of main spring leaves and which is capable of relative longitudinal movement with respect thereto.
  • Said torque transfer means is capable of transmitting at least some of the torque generated by the anti-roll or stabilising means, in use, to each of the single, main spring leaves via the respective single, secondary spring leaves to which the ends of the anti-roll or stabilising means are rigidly connected.
  • the torque transfer means comprises a bracket having one end connected rigidly to each of the pair of single, secondary spring leaves and having its other end engaging each of the pair of single, main pring leaves for relative longitudinal movement with respect thereto.
  • the other end of each torque transfer means may comprise and be connected to an element arranged in sliding engagement with the respective main spring leaf.
  • the element may be secured to at least the other end of its torque transfer bracket and may be resiliency deformable, such that, in use, it is capable of allowing relative movement between the bracket , and hence the secondary spring leaf, and the main spring leaf.
  • each main spring leaf may be mounted to the corresponding one end of each secondary spring leaf by means of an interleaf element located between said spring leaf ends
  • the one end of each main spring leaf comprises an eye, such as a Berlin eye, which is connectable or connected to the frame or chassis of the vehicle via a bush or shackle which is mounted to the corresponding one end of each secondary spring leaf by means of the interleaf elements located between said spring leaf ends.
  • each secondary spring leaf remote from the end thereof to which the anti-roll or stabilising means is rigidly connected may be mounted to a corresponding shackle in sliding engagement therewith
  • such mounting is by way of a pin arranged on an extension of each shackle and upon which the corresponding end of each secondary spring leaf bears.
  • At least one of the main and secondary spring leaves of each multi-leaf spring may be pre-loaded, either during manufacture or assembly. Preferably, both the main and secondary spring leaves of each multi-leaf spring are so preloaded.
  • the anti-roll or stabilising means preferably comprises an anti-roll or stabiliser bar or tube
  • each multi-leaf spring remote from the end to which the anti-roll or stabilising means is connected is provided with means, such as a clip, connected rigidly to each of the pair of secondary spring leaves and engaging each of the pair of main spring leaves for relative longitudinal movement with respect thereto
  • means such as a clip
  • Figures 1 and 2 are respective bottom plan and side elevational views of a first prior art, multi-leaf spring suspension
  • Figure 3 is a side elevational view of part of the suspension shown in Figures 1 and 2, on an enlarged scale;
  • Figure 4 and 5 are respective bottom plan and side elevational views of a second prior art, multi-leaf spring suspension
  • Figure 6 is a side elevational view of part of the suspension shown in
  • Figure 7 and 8 are respective bottom plan and side elevational views of a first embodiment of multi-leaf spring suspension in accordance with the invention.
  • Figure 9 is a side elevational view of part of the first embodiment of suspension shown in Figures 7 and 8, on an enlarged scale;
  • Figure 10 and 11 are respective bottom plan and side elevational views of a second embodiment of multi-leaf spring suspension in accordance with the invention.
  • Figure 12 is a side elevational view of part of the second embodiment of suspension shown in Figures 10 and 11 ;
  • Figure 13 is a side elevational view of one end of a third embodiment of multi-leaf spring suspension;
  • Figure 14 is a side elevational view of another end of a fourth embodiment of multi-leaf spring suspension.
  • a first, typical prior art multi-leaf spring suspension indicated generally at 1 comprises a pair of multi-leaf springs shown generally at 2 and extending longitudinally of a vehicle frame or chassis 3 on respective opposed sides thereof.
  • Each multi-leaf spring 2 comprises a single primary spring leaf 4 and a single secondary spring leaf 5.
  • An anti-roll or stabiliser bar or tube 6 extends transversely of the vehicle frame or chassis 3, with its opposed ends connected rigidly to respective forward ends of the pair of secondary spring leaves 5 by means of a clamp 7 and bolts 8.
  • the main spring leaf 4 has a Berlin eye 9 connected to a frame or chassis-mounted bush 10, whilst the forward end 11 of the secondary spring leaf 5 is wrapped partially around the Berlin eye 9 of the main spring leaf 4 to provide a military wrap.
  • each multi-leaf spring 2 again has a Berlin eye 13 connected to a frame or chassis-mounted shackle 14 with the rear end 15 of the secondary spring 5 and the eye 13 bearing against each other.
  • FIG. 4 to 6 here is shown a second, typical prior art multi-leaf spring suspension 1 which is similar to that described above in relation to Figures 1 to 3 and in which the same components are referenced by like numerals to those of Figures 1 to 3, except that the anti-roll or stabiliser bar or tube 6 has its opposed ends connected rigidly to respective rear ends 15 of the pair of secondary spring leaves 5.
  • FIG. 7 to 9 here is shown a first embodiment of a multi-leaf vehicle suspension 20 which is similar to that described above in relation to Figures 1 to 3 and in which the same components are referenced by like numerals to those in Figures 1 to , However, and in accordance with the invention, there is provided a bracket 21 having its one, lower end secured rigidly, by means of the clamp 7 and bolts 8, to each single, secondary spring lea 5 to which the corresponding end of the anti-roll or stabiliser bar or tube 6 is rigidly connected.
  • the other, upper end 23 is connected, via a pin 24, to an element 25 which is in slidable longitudinal engagement with the upper surface 26 of the single, main spring leaf 4.
  • the Berlin eye 9 at the forward end of the main spring leaf 4 is mounted upon an interleaf element 27 mounted upon the upper surface 28 of the secondary spring leaf 5.
  • this pre-load on the main and secondary spring leaves, 4, 5, even under anti-roll or stabilising conditions, assists in maintaining the spring leaves 4,5 in contact with each other, thereby eliminating, or at least substantially reducing, any knocking noises from the suspension 20, which improves the refinement of the suspension in many applications.
  • FIG. 10 to 12 here is shown a second embodiment of a multi-leaf vehicle suspension 30 which is similar to that described above in relation to Figures 4 to 6 and in which the same components are referenced by like numerals to those in Figures 4 to 6.
  • a bracket 31 having its one, lower end secured rigidly, by means of the clamp 7 and bolts 8, to the single, secondary spring leaf 5 to which the anti-roll or stabiliser bar or tube 6 is rigidly connected.
  • the other, upper end 33 is connected, via a pin 34, to an element 35 which is in longitudinal slidable engagement with the upper surface 36 of the single, main spring leaf 4.
  • the Berlin eye 13 at the rear end of the main spring leaf 4 is mounted upon an interleaf element 37 mounted upon the upper surface 38 of the secondary spring leaf 5.
  • the elements 25, 35 of both embodiments of suspension 20, 30 may be solid and in sliding engagement with the upper surfaces 26, 36 of the main spring leaf 4 to allow relative longitudinal movement of the main and secondary spring leaves 4, 5.
  • the elements 25, 35, as well as the interleave elements 27, 37 may be resiliently deformable and made from rubber, polyurethane or similar material. This allows shearing of the resiliently deformable elements 25, 35 and 27, , rather than sliding movement, to allow relative longitudinal movement between the main and secondary spring leaves 4, 5, thus reducing any sliding friction and wear.
  • FIG. 13 here is shown a third embodiment of a muti-leaf vehicle suspension 40 which is similar to that described above in relation to Figures 7 to 9 and in which the same components are referenced by like numerals to those in Figures 7 to 9.
  • the other, upper end 43 of the torque-transmitting bracket 41 is connected, via a bolt 44, to a resiliently deformable element 45 in engagement with the upper surface 46 of the single, main spring leaf 4.
  • An upturned eye 48 at the forward end of the main spring leaf 4 is mounted upon an elongate interleaf element 47 which is secured to the upper surface 47 of the secondary spring leaf 5 and which is also resiliently deformable. This arrangement may also control factional sliding and wear between the main and secondary spring leaves 4, 5.
  • the anti-roll or stabiliser bar or tube 6 can be applied to multi-leaf vehicle suspensions with soft springs with more than two spring leaves, namely main spring leaves 4 and more than two secondary springs 5, although the anti-roll or stabiliser bar or tube 6 will almost certainly have its opposed ends connected rigidly to only one pair of secondary spring leaves 5 Also, on suspensions with only two spring leaves, namely a single main spring leaf 4 and a single secondary spring leaf 5, the size of the anti-role or stabiliser bar or tube 6, and that of its attachments, may be reduced, to save weight and cost.
  • each clip 51 is secured rigidly to the single, secondary spring leaf 5, whilst its other, upper end 53 is connected to the upper surface 56 of the main spring leaf 5 via an element 55 which is in slidable engagement with that upper surface 56, to allow, in use, relative longitudinal movement between the main and secondary spring leaves 4, 5.
  • element 55 may be resiliently deformable, in shear, to permit relative longitudinal movement between the spring leaves 4, 5.
  • This clip 51 can improve the balance and performance of the suspension.
  • each main spring leaf 4 may be mounted to the rear end of the corresponding secondary spring leaf by means of an interleaf element 57.

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

Abstract

Cette invention se rapporte à une suspension pour véhicule, qui comprend une paire de ressorts multilames conçus pour s'étendre dans le sens longitudinal du cadre ou du châssis du véhicule. Chaque ressort multilame comprend une seule lame principale et une seule lame secondaire. Une barre de stabilisation ou antiroulis est conçue pour s'étendre dans le sens transversal du cadre ou du châssis et ses extrémités opposées sont reliées en position rigide aux extrémités correspondantes de la paire des lames secondaires des ressorts. Un mécanisme de transfert de couple est relié en position rigide à chacune des lames de la paire des lames secondaires des ressorts, qui viennent en prise avec chacune des lames de la paire des lames principales des ressorts et qui peuvent effectuer un mouvement longitudinal par rapport à elles.
PCT/US2000/032527 2000-11-28 2000-11-28 Suspension de vehicule a ressorts multilames avec barre antiroulis WO2002043976A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP00982280A EP1337408A1 (fr) 2000-11-28 2000-11-28 Suspension de vehicule a ressorts multilames avec barre antiroulis
AU2001219335A AU2001219335A1 (en) 2000-11-28 2000-11-28 Multi-leaf spring vehicle suspension with an anti-roll bar
PCT/US2000/032527 WO2002043976A1 (fr) 2000-11-28 2000-11-28 Suspension de vehicule a ressorts multilames avec barre antiroulis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2000/032527 WO2002043976A1 (fr) 2000-11-28 2000-11-28 Suspension de vehicule a ressorts multilames avec barre antiroulis

Publications (1)

Publication Number Publication Date
WO2002043976A1 true WO2002043976A1 (fr) 2002-06-06

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Family Applications (1)

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PCT/US2000/032527 WO2002043976A1 (fr) 2000-11-28 2000-11-28 Suspension de vehicule a ressorts multilames avec barre antiroulis

Country Status (3)

Country Link
EP (1) EP1337408A1 (fr)
AU (1) AU2001219335A1 (fr)
WO (1) WO2002043976A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004089662A1 (fr) * 2003-04-12 2004-10-21 Detroit Steel Products Co Inc Suspension avec ressorts a lames anti-roulis
DE102014019495A1 (de) 2014-12-23 2015-06-11 Daimler Ag Stabilisatoreinrichtung für ein Fahrwerk eines Fahrzeugs
FR3053285A1 (fr) * 2016-07-01 2018-01-05 Peugeot Citroen Automobiles Sa Systeme de lames pour une suspension de vehicule comportant deux lames
CN113928069A (zh) * 2021-10-29 2022-01-14 东风商用车有限公司 一种抗侧倾的汽车主副簧悬架系统
US20240075784A1 (en) * 2022-09-01 2024-03-07 Ford Global Technologies, Llc Methods and apparatus to calibrate a suspension sensor

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB357638A (en) * 1930-06-27 1931-09-28 George Alfred Woodhead New or improved anti-rolling devices for automobiles
US3228489A (en) * 1960-07-15 1966-01-11 Ford Motor Co Motor vehicle road wheel suspension with height adjusting means to compensate for load changes
US3933367A (en) * 1974-07-03 1976-01-20 Dura Corporation Dual leaf spring suspension
WO1992022438A1 (fr) * 1991-06-10 1992-12-23 Detroit Steel Products Co Inc. Systeme de suspension pour vehicules
EP0605398A1 (fr) * 1989-03-22 1994-07-06 Detroit Steel Products Co.Inc. Système de suspension de véhicule
US5542652A (en) * 1995-02-22 1996-08-06 Reyco Industries, Inc. Anti-friction pad for a bushed pivot point connection of a main leaf spring and a secondary leaf spring

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB357638A (en) * 1930-06-27 1931-09-28 George Alfred Woodhead New or improved anti-rolling devices for automobiles
US3228489A (en) * 1960-07-15 1966-01-11 Ford Motor Co Motor vehicle road wheel suspension with height adjusting means to compensate for load changes
US3933367A (en) * 1974-07-03 1976-01-20 Dura Corporation Dual leaf spring suspension
EP0605398A1 (fr) * 1989-03-22 1994-07-06 Detroit Steel Products Co.Inc. Système de suspension de véhicule
WO1992022438A1 (fr) * 1991-06-10 1992-12-23 Detroit Steel Products Co Inc. Systeme de suspension pour vehicules
US5542652A (en) * 1995-02-22 1996-08-06 Reyco Industries, Inc. Anti-friction pad for a bushed pivot point connection of a main leaf spring and a secondary leaf spring

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004089662A1 (fr) * 2003-04-12 2004-10-21 Detroit Steel Products Co Inc Suspension avec ressorts a lames anti-roulis
US7665716B2 (en) 2003-04-12 2010-02-23 Standen's Limited Anti-roll leaf spring suspension
DE102014019495A1 (de) 2014-12-23 2015-06-11 Daimler Ag Stabilisatoreinrichtung für ein Fahrwerk eines Fahrzeugs
FR3053285A1 (fr) * 2016-07-01 2018-01-05 Peugeot Citroen Automobiles Sa Systeme de lames pour une suspension de vehicule comportant deux lames
CN113928069A (zh) * 2021-10-29 2022-01-14 东风商用车有限公司 一种抗侧倾的汽车主副簧悬架系统
CN113928069B (zh) * 2021-10-29 2023-11-10 东风商用车有限公司 一种抗侧倾的汽车主副簧悬架系统
US20240075784A1 (en) * 2022-09-01 2024-03-07 Ford Global Technologies, Llc Methods and apparatus to calibrate a suspension sensor

Also Published As

Publication number Publication date
AU2001219335A1 (en) 2002-06-11
EP1337408A1 (fr) 2003-08-27

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