GB2356606A - Vehicle roll control system having an adjustable torsion bar - Google Patents

Vehicle roll control system having an adjustable torsion bar Download PDF

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Publication number
GB2356606A
GB2356606A GB9927933A GB9927933A GB2356606A GB 2356606 A GB2356606 A GB 2356606A GB 9927933 A GB9927933 A GB 9927933A GB 9927933 A GB9927933 A GB 9927933A GB 2356606 A GB2356606 A GB 2356606A
Authority
GB
United Kingdom
Prior art keywords
fluid
control system
fluid chamber
torsion bar
roll control
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.)
Granted
Application number
GB9927933A
Other versions
GB2356606B (en
GB9927933D0 (en
Inventor
Philippe Germain
Robin N Oakley
David Burke
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.)
Delphi Technologies Inc
Original Assignee
Delphi Technologies 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 Delphi Technologies Inc filed Critical Delphi Technologies Inc
Priority to GB9927933A priority Critical patent/GB2356606B/en
Publication of GB9927933D0 publication Critical patent/GB9927933D0/en
Priority to GB0005745A priority patent/GB0005745D0/en
Priority to DE60042146T priority patent/DE60042146D1/en
Priority to EP00203971A priority patent/EP1103395B1/en
Priority to EP00203972A priority patent/EP1103396B1/en
Priority to DE60042053T priority patent/DE60042053D1/en
Priority to EP00203973.3A priority patent/EP1103397B1/en
Priority to US09/721,446 priority patent/US6533294B1/en
Priority to US09/721,459 priority patent/US6520510B1/en
Publication of GB2356606A publication Critical patent/GB2356606A/en
Application granted granted Critical
Publication of GB2356606B publication Critical patent/GB2356606B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • B60G17/016—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 their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
    • B60G17/0162—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 their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input mainly during a motion involving steering operation, e.g. cornering, overtaking
    • 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
    • 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
    • B60G21/0551—Mounting means therefor
    • B60G21/0553—Mounting means therefor adjustable
    • B60G21/0555—Mounting means therefor adjustable including an actuator inducing vehicle roll
    • 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
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/40—Type of actuator
    • B60G2202/41—Fluid actuator
    • B60G2202/413—Hydraulic actuator
    • 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
    • B60G2202/414—Fluid actuator using electrohydraulic valves
    • 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
    • B60G2202/416—Fluid actuator using a pump, e.g. in the line connecting the lower chamber to the upper chamber of the 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
    • B60G2400/10—Acceleration; Deceleration
    • B60G2400/104—Acceleration; Deceleration lateral or transversal with regard to vehicle
    • 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
    • B60G2400/20—Speed
    • B60G2400/204—Vehicle speed
    • 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
    • B60G2400/40—Steering conditions
    • B60G2400/41—Steering angle
    • 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
    • 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

Landscapes

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

Description

2356606 DP-301798 VEHICLE ROLL CONTROL SYSTEM
Technical Field
The present invention relates to a roll control system for a motor vehicle.
Background of the Invention
GB-A-2230237 discloses a roll control system comprising a torsion bar, a first arm fixedly connected to one end of the torsion bar, and a second arm rotatably connected to the other end of the torsion bar by way of a rotary actuator. The rotary actuator is operable to effect relative angular movement between the second arm and the said other end of the torsion bar.
This arrangement is such that the actuator has to generate a large amount of force in order to provide the required roll control.
GB-A-2284184 describes a roll control system in which a hydraulic cylinder is used to prevent or allow rotation of an arm attached to a torsion bar between the torsion bar and an axle of a wheel. This arrangement provides a limited amount of roll control.
EP-A-0783986 describes an arrangement which is similar in layout to GB-A-2284184 but in which the hydraulic actuators are powered to provided active roll control for the vehicle.
Summary of the Invention
The aim of the present invention is to provide a roll control system which is an improvement to the above mentioned arrangements.
A vehicle roll control system in accordance with the present invention for a vehicle having a pair of wheels each rotatable on an axle, comprises a torsion bar; a torsion bar; a first arm attached to the torsion bar at one end and being connectable to one of the axles at the other end; a hydraulic actuator attached to the torsion bar at one end and being connectable to the 2 other axle at the other end; and control means connected to the hydraulic actuator and controlling the operation thereof on detection of a predetermined vehicle condition; wherein the hydraulic actuator comprises a housing, a piston making a sealing sliding fit inside the housing to define a first fluid chamber and a second fluid chamber, and a piston rod connected to the piston and extending through the second fluid chamber and out of the housing; and wherein the control means acts on detection of the predetermined vehicle condition either to apply substantially the same fluid pressure to the first and second fluid chambers when the piston tends to move in a first direction to extend the hydraulic actuator, or to apply a fluid pressure to the second fluid chamber above the fluid pressure in the first fluid chamber when the piston tends to move in a second direction to compress the hydraulic actuator.
The present invention provides active roll control with reduced hydraulic fluid flow and/or improved ride comfort.
Brief Description of the Drawings
The present invention will now be described, by way of example, with reference to the accompanying drawings, in which:
Figure I is a schematic presentation of a vehicle incorporating a vehicle roll control system in accordance with the present invention; Figure 2 is an enlarged view of the front and rear portions of the vehicle roll control system shown in Figure 1; Figure 3 is a side view of the first arm of the vehicle roll control system shown in Figure 2; Figure 4 is a side view of the second arm, hydraulic actuator (shown in cross-section) and lever arm of the vehicle roll control system shown in Figure 2; Figure 5 is a schematic diagram of the hydraulic and electrical control circuit of the vehicle roll control system shown in Figure 1 when the piston of the hydraulic actuator is moving in one direction; 3 Figure 6 is a schematic diagram of the hydraulic and electrical control circuit of the vehicle roll control system shown in Figure I when the piston of the hydraulic actuator is moving in the other direction; and Figure 7 is a view of a vehicle roll control system in accordance with a second embodiment of the present invention.
Description of the Preferred Embodiment
Referring to Figure 1, a vehicle 10 is shown schematically and comprises a pair of front wheels 12 each rotatably mounted on an axle 14, a pair of rear wheels 16 each rotatably mounted on an axle 18, and a shocking absorbing system 20 associated with each wheel. A portion 22 of a vehicle roll control system in accordance with the present invention is associated with the front wheels 12, and a portion 24 of the vehicle roll control system in accordance with the present invention is associated with the rear wheels 16.
The portions 22, 24 are substantially the same but with modifications made solely to allow fitting to the vehicle 10.
Referring in more detail to Figures 2 to 6, the portion 22 of the vehicle roll control system for the front of the vehicle comprises a torsion bar 26, a first arm 28, a second arm 30, a lever arm 32, and a hydraulic actuator 34. The torsion bar 26 is mounted on the vehicle by a pair of resilient mounts 36 in conventional manner to extend longitudinally between the wheels 12.
The first arm 28 (Figure 3) is fixed at one end 38 by a splined connection 40 to the torsion bar 26. The other end 42 of the first arm 28 is connected to the axle 14 of one of the front wheels 12 by a tie rod 43. The second arm 30 (Figure 4) is rotatably mounted at one end 44 on the torsion bar 26 by way of a bearing 46. The other end 48 of the second arm 30 is connected to the axle 14 of the other front wheel 12 by a tie rod 49. The first and second arms 28,30 extend substantially parallel to one another when the vehicle is stationary, and substantially perpendicular to the torsion bar 26.
The lever arm 32 (Figure 4) is fixed at one end 50 to the torsion bar 26 by a splined connection 52 substantially adjacent the one end 44 of the 4 second arm 30 and the bearing 46. The lever arm 32 extends substantially perpendicular to the torsion bar 26 to a free end 54. The hydraulic actuator 34 (Figure 4) extends between, and is connected to, the free end 54 of the lever arm 32 and the other end 48 of the second arm 30. The hydraulic actuator 34 comprises a housing 56 which defines first and second fluid chambers 58,60 separated by a piston 62 which makes a sealing sliding fit with the housing. As shown in Figure 4, the housing 56 is connected to the other end 48 of the second arm 30, and the piston 62 is connected to the free end 54 of the lever arm 34 by a piston rod 64 which extends through the second fluid chamber 60. It will be appreciated that these connections may be reversed. The fluid chambers 58,60 contain hydraulic fluid and are fluidly connected to fluid lines 66, 68 respectively. The portion 24 of the vehicle roll control for the rear of the vehicle is substantially the same, but with the components (which are primed) having a different layout.
The hydraulic and electrical control circuit of the vehicle roll control system is shown in Figures 5 and 6. The hydraulic circuit includes a fluid pump 80, a fluid reservoir 82, and a directional valve 84. The fluid line 66, and hence the first fluid chamber 58, is connected to the directional valve 84. The fluid line 68, and hence the second fluid chamber 60, is connected to the fluid pump 80. The directional valve 84 is connected to the fluid pump 80 and to the reservoir 82. The directional valve 84 is operable between a first position (Figure 5) in which the fluid pump 80 is connected to the first fluid chamber 58, and the reservoir 82 is isolated; and a second position (Figure 6) in which the first fluid chamber is connected to the reservoir, and the fluid pump is isolated.
The electrical control circuit includes an electronic and/or computerised control module 70. The control module 70 operates the fluid pump 80 and the directional valve 84 when required. The control module 70 operates the pump 80 and the valve 84 dependent on predetermined vehicle conditions which are determined by signals from one or more sensors, such as a pressure sensor 76 (which detects the presence of fluid pressure in the hydraulic circuit), a lateral g sensor 74 (which monitors the sideways acceleration of the vehicle), a steering sensor 72 (which monitors the steering angle of the front wheels 12), a vehicle speed sensor 78, and/or any other relevant parameter.
If the control module 70 detects that roll control is not required (that is, the vehicle is travelling in a straight line), the control module switches off the pump 80. Fluid can freely flow within the hydraulic system including between the two fluid chambers 58,60, of each hydraulic actuator 34, 34' allowing free movement of the piston 62 relative to the housing 56 thereby allowing free rotation of each second arm 30, 30' relative to its associated torsion bar 26, 26'.
If the control module 70 detects that roll control is required (due, for example, to cornering of the motor vehicle 10), the control module determines if the motion will generate a force F which acts on the piston rod 64 to extend the actuator 34, or to compress the actuator. If the former case, the control module 70 actuates the pump 80 and sets the directional valve 84 in the first position as shown in Figure 5, so that the same fluid pressure is generated in each of the fluid chambers 58,60. If the latter case, the control module 70 actuates the pump 80 and sets the directional valve 84 in the second position as shown in Figure 6, so that the fluid in the second fluid chamber 60 is pressurised, but the first fluid chamber 58 is connected to the reservoir 82.
By restricting connection of the first fluid chamber 58 to the reservoir 82 only during compression of the actuator 34, the amount of fluid flow within the hydraulic circuit is reduced during roll control. By suitable dimensions for the actuator 34, the output force from the actuator can be made substantially the same irrespective of the direction of motion of the piston 62.
In a preferred arrangement, the cross-sectional area of the first fluid chamber 58 is substantially double the cross-sectional area of the piston rod 64, when considered on a radial basis. Such an arrangement provides the same output force from the actuator 34 in either direction, using the same fluid pressure and equal amounts of fluid.
6 In comparison to EP-A-0783986, the fluid flow requirements for the hydraulic actuators are lowered, or the stiffness of the torsion bar can be reduced for an improvement in ride.
In the preferred arrangement described above, a hydraulic actuator is provided for both the front of the vehicle and the rear of the vehicle, and these hydraulic actuators are controlled in unison. It will be appreciated that the hydraulic actuators may be controlled individually, and in certain cases the portion of the roll control system at the rear of the vehicle may be omitted.
The present invention is also applicable for use with a vehicle roll control system as shown in Figure 7. In this embodiment in accordance with the present invention, the system 122 comprises a torsion bar 126, a first arm 128, and a hydraulic actuator 134. The first arm 128 is fixed at one end 138 to one end 140 of the torsion bar 126. The other end 142 of the first arm 128 is connected to one of the shock absorbers 120. The hydraulic actuator 134 has a piston rod 164 which is fixed to the other end 186 of the torsion bar 126. The housing 156 of the actuator 134 is connected to the other shock absorber 120. The hydraulic actuator 134 is substantially the same as the actuator 34 described above with reference to Figure 1 to 6, and has a fluid line 166 connected to a first fluid chamber inside the housing, and another fluid line 168 connected to a second fluid chamber inside the housing. The first and second fluid chambers inside the housing 156 are separated by a piston secured to the piston rod 164. The fluid lines 166,168 are connected to a hydraulic circuit as shown in Figures 5 and 6, which is controlled by a control circuit as shown in Figures 5 and 6. The roll control system 122 is operated in substantially the same manner as that described above with reference to Figures I to 6.
In either of the roll control systems described above, the hydraulic actuator 34,134 may include a check valve (not shown, but preferably mounted in the piston 62) which allows flow of hydraulic fluid from the first fluid chamber 58 to the second fluid chamber 60 only when the 7 fluid pressure in the first fluid chamber is greater than the fluid pressure in the second fluid chamber. With such an arrangement, the second fluid chamber 60 can be connected to a reservoir during servicing of the actuator 34,134, to bleed air from the hydraulic fluid. Also, the presence of the check valve reduces the risk of air being sucked into the second fluid chamber 60 should the fluid pressure in the second fluid chamber fall below the fluid pressure in the first fluid chamber 58, and provides further improvements in ride comfort.
t z -. - 4 7 8

Claims (12)

Claims
1. A vehicle roll control system for a vehicle having a pair of wheels each rotatable on an axle, comprising a torsion bar; a first arm attached to the torsion bar at one end and being connectable to one of the axles at the other end; a hydraulic actuator attached to the torsion bar at one end and being connectable to the other axle at the other end; and control means connected to the hydraulic actuator and controlling the operation thereof on detection of a predetermined vehicle condition; wherein the hydraulic actuator comprises a housing, a piston making a sealing sliding fit inside the housing to define a first fluid chamber and a second fluid chamber, and a piston rod connected to the piston and extending through the second fluid chamber and out of the housing; and wherein the control means acts on detection of the predetermined vehicle condition either to apply substantially the same fluid pressure to the first and second fluid chambers when the piston tends to move in a first direction to extend the hydraulic actuator, or to apply a fluid pressure to the second fluid chamber above the fluid pressure in the first fluid chamber when the piston tends to move in a second direction to compress the hydraulic actuator.
2. A vehicle roll control system as claimed in Claim 1, wherein the first fluid chamber is fluidly connected to a fluid reservoir by the control means when the piston tends to move in the second direction.
3. A vehicle roll control system as claimed in Claim 2, wherein the control means comprises a fluid pump and a directional valve, the pump being fluidly connected to the second fluid chamber, and the directional valve being capable of moving between a first position in which the first fluid chamber and the second fluid chamber are fluidly connected, and a second position in which the first fluid chamber is fluidly connected to the fluid reservoir.
9
4. A vehicle roll control system as claimed in Claim 3, wherein the control means comprises an electronic control module which receives signals dependent on the predetermined vehicle condition, and which controls the operation of the fluid pump and the directional valve.
5. A vehicle roll control system as claimed in any one of Claims I to 4, wherein the cross-sectional area of the first fluid chamber is substantially double the cross-sectional area of the piston rod.
6. A vehicle roll control system as claimed in any one of Claims I to 5, further comprising a second arm rotatably mounted on the torsion bar at one end and being connectable to the other axle at the other end; wherein the hydraulic actuator controls the rotation of the second arm relative to the torsion bar.
7. A vehicle roll control system as claimed in Claim 6, further comprising a lever arm fixed to the torsion bar at one end adjacent said one end of the second arm, and having a free end at the other end thereof; wherein the hydraulic actuator extends between the second arm and the lever arm, the housing being connected to one of the second arm or the free end of the lever arm, and the piston rod being connected to the other of the second arm or the free end of the lever arm.
8. A vehicle roll control system as claimed in Claim 6, further comprising a lever arm fixed at one end to the said other end of the second arm, and having a free end at the other end thereof; wherein the hydraulic actuator extends between the torsion bar and the lever arm, the housing being connected to one of the torsion bar or the free end of the lever arm, the piston rod being connected to the other of the torsion bar or the free end of the lever arm.
9. A vehicle roll control system as claimed in any one of Claims 1 to 5, wherein the hydraulic actuator is attached directly to the torsion bar at said one end thereof.
10. A vehicle roll control system as claimed in any one of Claims I to 9, wherein the hydraulic actuator includes a check valve which allows fluid to flow from the first fluid chamber to the second fluid chamber when the fluid pressure in the first fluid chamber exceeds the fluid pressure in the second fluid chamber.
11. A vehicle roll control system as claimed in Claim 10, wherein the check valve is mounted in the piston.
12. A vehicle roll control system substantially as hereiribefore described with reference to, and as shown in, the accompanying drawings.
GB9927933A 1999-11-26 1999-11-26 Vehile roll control system Expired - Fee Related GB2356606B (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
GB9927933A GB2356606B (en) 1999-11-26 1999-11-26 Vehile roll control system
GB0005745A GB0005745D0 (en) 1999-11-26 2000-03-10 Vehicle roll control system
EP00203973.3A EP1103397B1 (en) 1999-11-26 2000-11-13 Hydraulic actuator for a vehicle roll control system
EP00203971A EP1103395B1 (en) 1999-11-26 2000-11-13 Vehicle roll control system
EP00203972A EP1103396B1 (en) 1999-11-26 2000-11-13 Vehicle roll control system
DE60042053T DE60042053D1 (en) 1999-11-26 2000-11-13 Vehicle roll control system
DE60042146T DE60042146D1 (en) 1999-11-26 2000-11-13 Vehicle roll control system
US09/721,446 US6533294B1 (en) 1999-11-26 2000-11-22 Vehicle roll control system
US09/721,459 US6520510B1 (en) 1999-11-26 2000-11-22 Vehicle roll control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9927933A GB2356606B (en) 1999-11-26 1999-11-26 Vehile roll control system

Publications (3)

Publication Number Publication Date
GB9927933D0 GB9927933D0 (en) 2000-01-26
GB2356606A true GB2356606A (en) 2001-05-30
GB2356606B GB2356606B (en) 2003-05-28

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Application Number Title Priority Date Filing Date
GB9927933A Expired - Fee Related GB2356606B (en) 1999-11-26 1999-11-26 Vehile roll control system
GB0005745A Ceased GB0005745D0 (en) 1999-11-26 2000-03-10 Vehicle roll control system

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB0005745A Ceased GB0005745D0 (en) 1999-11-26 2000-03-10 Vehicle roll control system

Country Status (2)

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DE (2) DE60042146D1 (en)
GB (2) GB2356606B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004009383A1 (en) * 2002-07-22 2004-01-29 Societe De Technologie Michelin Vehicle wheel suspension device
US7246806B2 (en) 2002-07-22 2007-07-24 Michelin Recherche Et Technique S.A. Suspension system for a vehicle wheel

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0512358A1 (en) * 1991-05-06 1992-11-11 FIAT AUTO S.p.A. A system for controlling the load on an antiroll stabiliser bar associated with an independent suspension system for a motor vehicle
WO1998026948A1 (en) * 1996-12-14 1998-06-25 Rover Group Limited A vehicle roll stabilising system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0512358A1 (en) * 1991-05-06 1992-11-11 FIAT AUTO S.p.A. A system for controlling the load on an antiroll stabiliser bar associated with an independent suspension system for a motor vehicle
WO1998026948A1 (en) * 1996-12-14 1998-06-25 Rover Group Limited A vehicle roll stabilising system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004009383A1 (en) * 2002-07-22 2004-01-29 Societe De Technologie Michelin Vehicle wheel suspension device
US7246806B2 (en) 2002-07-22 2007-07-24 Michelin Recherche Et Technique S.A. Suspension system for a vehicle wheel

Also Published As

Publication number Publication date
DE60042053D1 (en) 2009-06-04
GB2356606B (en) 2003-05-28
GB0005745D0 (en) 2000-05-03
DE60042146D1 (en) 2009-06-18
GB9927933D0 (en) 2000-01-26

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Effective date: 20181126