[특허]Suspension device having anti-roll compensation

ZF Friedrichshafen AG

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Suspension device having anti-roll compensation

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B62D-033/06 B62D-033/10 B60G-017/016
미국특허분류(USC)	180/089.12; 280/124.106; 280/005.508; 296/190.07; 180/089.15
출원번호	US-0140646 (2009-12-17)
등록번호	US-8434581 (2013-05-07)
우선권정보	DE-10 2008 063 812 (2008-12-19)
국제출원번호	PCT/DE2009/050074 (2009-12-17)
§371/§102 date	20110617 (20110617)
국제공개번호	WO2010/069305 (2010-06-24)
발명자 / 주소	Buhl, Manfred Quaing, Matthias Langhorst, Friedhelm Lorenz, Karl Lahmann, Kerstin Eismann, Jens
출원인 / 주소	ZF Friedrichshafen AG
대리인 / 주소	Davis & Bujold, PLLC
인용정보	피인용 횟수 : 2 인용 특허 : 11

초록
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A suspension device for suspending a mass relative to a substructure. The suspension device comprises a spring/damper arrangement which is disposed between the mass and the substructure and dampens vibrations, and comprises at least one Watt's linkage. At least one of the pivot points of the Watt's linkage is movably connected to the mass and the substructure. The relative position between the pivot point, the mass and the substructure can be adjusted by at least one substantially linearly acting actuator. The suspension device is robust and suitable for determining the vertical degree of freedom of movement of a truck driver's cab, and for damping or preventing undesired movement of the driver's cab. At the same time, undesired rolling or tilting motion of the driver's cab can be actively controlled or prevented by using the actuators.

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1. A suspension device (1) for resiliently suspending a mass relative to a substructure (2), the suspension device (1) comprising: a spring/damper arrangement (4, 5) disposed between the mass and the substructure (2) for damping at least one of impact and vibration,a Watt's linkage system having at least a first Watt's linkage (A, B, C, D, E) connecting the mass and the substructure (2) in a relatively displaceable manner, via a control arm (9) and first and second fixed length lateral struts (7, 8), to reduce freedom of movement of the mass relative to the substructure (2),a central portion of the control arm (9) being pivotally secured with one of the mass and the substructure (2),the first fixed length lateral strut (7) interconnecting a first end of the control arm (9) with a first pivot point (A) which is connected to the other of the substructure (2) and the mass,the second fixed length lateral strut (8) interconnecting a second end of the control arm (9) with a second pivot point (E) which is connected to the other of the substructure (2) and the mass, andat least one of a plurality of pivot points (A, B, C, D, E, G) of the at least first Watt's linkage (A, B, C, D, E) being connected to at least one substantially linearly acting actuator (11) so as to be relatively displaceable with respect to at least one of the mass and the substructure (2) such that a relative position, between the at least one of the plurality of pivot points and either the mass or the substructure (2), is adjustable by actuation of the at least one substantially linearly acting actuator (11). 2. The suspension device according to claim 1, wherein the actuator (11) is connected to the at least one of the plurality of pivot points (A, B, C, D, E, G) of the Watt's linkage via a lever arm (12) which is disposed substantially perpendicularly to an acting direction of the actuator. 3. The suspension device according to claim 2, wherein an acting direction of the actuator (11) extends substantially perpendicularly to a straight-line direction (V) of the at least one Watt's linkage (A, B, C, D, E). 4. The suspension device according to claim 1, wherein at least one of the plurality of pivot points (A, E) of the at least one Watt's linkage (A, B, C, D, E) is elastically connected to one of the mass and the substructure (1), and the at least one actuator (11) is disposed between the at least one pivot point (A, E) and one of the mass and the substructure (2). 5. The suspension device according to claim 4, wherein the elastic connection between the at least one of the plurality of pivot points (A, E) of the Watt's linkage (A, B, C, D, E) connected to the actuator (11) and either the mass or the substructure (2) has different spring constants in at least two different spatial directions (H, V). 6. The suspension device according to claim 1, wherein a spring element (19) is connected in parallel with the actuator (11). 7. The suspension device according to claim 1, wherein the at least one actuator (11) is one of a passive actuator, a semi-active actuator, and an active actuator. 8. A suspension device (1) for resiliently suspending a mass relative to a substructure (2), the suspension device (1) comprising: a spring/damper arrangement (4, 5) disposed between the mass and the substructure (2) for damping at least one of impact and vibration,a Watt's linkage system having at least first and second Watt's linkages (A, B, C, D, E) connecting the mass and the substructure (2) in a relatively displaceable manner for reducing freedom of movement of the mass relative to the substructure (2),at least one displaceable pivot point (A, B, C, D, E, G) of at least one of the first and the second Watt's linkages (A, B, C, D, E) being connected to at least one of the mass and the substructure (2) in a relatively displaceable manner, anda relative position between the at least one displaceable pivot point (A, B, C, D, E, G) of at least one of the first and the second Watt's linkages (A, B, C, D, E) and either the mass or the substructure (2) is adjustable by actuation of at least one substantially linearly acting actuator (11),wherein straight-line directions (V) of the at least first and second Watt's linkages (A, B, C, D, E) are the same, the at least first and second Watt's linkages (A, B, C, D, E) are interspaced along the common straight-line direction (V), and planes of motion of the at least first and second Watt's linkages (A, B, C, D, E) extend parallel to one another. 9. The suspension device according to claim 8, wherein first and second outer pivot points (A, E) associated with first and second fixed length lateral thrust struts (7, 8) of the at least first and second Watt's linkages (A, B, C, D, E) are disposed in pairs on a pivot axis (A, E) that is common to the at least the first and the second Watt's linkages (A, B, C, D, E), and are designed, in pairs, as one piece and shaped as substantially V-shaped first and second combination struts (15, 16). 10. The suspension device according to claim 8, wherein first and second pivot points (A, E), of the first and the second Watt's linkages which form the Watt's linkage system (A, B, C, D, E), are connected to one of the mass and the substructure (2) such that first and second pivot points (A, E) are displaceable relative to one another using two actuators (11). 11. The suspension device according to claim 8, wherein the first and the second Watt's linkages form the Watt's linkage system (A, B, C, D, E), and a pivot point (C) of the at least one actuator (11) on the Watt's linkage system (A, B, C, D, E) is connected to a rotation point (C) of one of the Watt's control arms (9) of the Watt's linkage system (A, B, C, D, E), and an acting direction (H) of the at least one actuator (11) extends substantially perpendicularly to the straight-line direction (V) of the Watt's linkage system (A, B, C, D, E). 12. The suspension device according to claim 11, wherein only one actuator (11) is provided, the pivot point (C) of the actuator (11) on the Watt's linkage system (A, B, C, D, E) is connected to the rotation point (C) of the control arm (9) of the Watt's linkage system (A, B, C, D, E) that is located further from the mass. 13. A vehicle cab suspension device (1) for resiliently suspending a vehicle cab relative to a substructure (2), the vehicle cab suspension device (1) comprising: a spring/damper arrangement (4, 5) disposed between the mass and the substructure (2) for damping at least one of impact and vibration,a Watt's linkage system having a first Watt's linkage (A, B, C, D, E) connecting the vehicle cab relative to the vehicle substructure (2) in a relatively displaceable manner, via a control arm (9) and first and second fixed length lateral struts (7, 8), to reduce freedom of movement of the mass relative to the substructure (2),a central portion of the control arm (9) being pivotally secured with one of the vehicle cab relative to the vehicle substructure (2),the first fixed length lateral strut (7) interconnecting a first end of the control arm (9) with a first pivot point (A) which is connected to the other of the vehicle substructure (2 and the vehicle cab;the second fixed length lateral strut (8) interconnecting a second end of the control arm (9) with a second pivot point (E) which is connected to the other of the vehicle substructure (2 and the vehicle cab; andat least one of a plurality of pivot points (A, B, C, D, E, G) of the first Watt's linkage (A, B, C, D, E) being connected to at least one substantially linearly acting actuator (11) so as to be relatively displaceable with respect to at least one of the mass and the substructure (2) such that a relative position, between the at least one of the plurality of pivot points and either the vehicle substructure (2) and the vehicle cab, is adjustable by actuation of the at least one substantially linearly acting actuator (11). 14. The vehicle cab suspension device according to claim 13, wherein the vehicle substructure is a chassis of the vehicle. 15. The vehicle cab suspension device according to claim 13, wherein the vehicle cab comprises an upper cross-bridge and at least one pivot point is supported by the upper cross-bridge.

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Suspension device having anti-roll compensation

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Suspension device having anti-roll compensation

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이 특허에 인용된 특허 (11)

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