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公开(公告)号：EP1841608A2
公开(公告)日：2007-10-10
申请号：EP05815772.8
申请日：2005-10-25
发明人： DAVIS, Leo, W.
IPC分类号： B60G17/02
CPC分类号： F16F9/063 , B60G3/20 , B60G11/26 , B60G13/10 , B60G17/04 , B60G17/056 , B60G17/06 , B60G2202/152 , B60G2202/24 , B60G2204/147 , B60G2500/2014 , B60G2500/2041 , F16F5/00
摘要： An active, independent suspension system has dual piston, compressible fluid struts (22). Each of the dual piston struts (22) has an outer cylinder (24) and an outer piston rod (30), which each respectively define exterior peripheries for an outer pressure chamber (32) and an inner pressure chamber (54). Pressures applied to a compressible fluid (56) in respective ones of the outer and inner pressure chambers (32, 54) urge the outer piston to extend from within the outer cylinder (24). A control system (240) is provided for actively controlling an amount of compressible fluid (56) disposed within each of the outer and inner chambers (32, 54).
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公开(公告)号：EP1362196B1
公开(公告)日：2010-12-29
申请号：EP02717319.4
申请日：2002-01-11
发明人： DAVIS, Leo, W.
IPC分类号： F16F3/00
CPC分类号： F16F9/3405 , B60G17/0152 , B60G17/04 , B60G17/0424 , B60G21/067 , B60G21/103 , B60G2200/132 , B60G2202/15 , B60G2202/24 , B60G2202/414 , B60G2202/415 , B60G2206/41 , B60G2206/42 , B60G2300/32 , B60G2400/206 , B60G2400/91 , B60G2500/11 , B60G2500/203 , B60G2500/204 , B60G2500/2062 , B60G2600/02 , B60G2600/182 , B60G2800/162 , F16F5/00 , F16F9/368 , F16F9/46 , F16F9/512
摘要： A suspension system (20) controls the amount of compressible fluid (42) within struts (28) to determine spring rate coefficients (KS) and dampening coefficients (BS) for the struts (28). the spring rate and dampmening coefficients (KS, BS) are selected to provide foraces (F) which are a sum of several components, which include a desired target static force (Fd) for balancing various forces acting upon a vehicle chassis, comparison of the target strut force (Fd) to the actual force (F) applied by the respective struts (28), comparison of velocity (żS) of the chassis relative to a selected reference datum, and a ride height error (erh). Frequency dependant filtering decreases the spring rate coefficients (KS) when changes in position (ZS) are detected at frequencies (ω) beneath a threshold level (ωK), and decreases the dampening coefficients (BS) when changes in velocity (ZS) are detected at frequencies (ω) above a threshold level (ωB).
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公开(公告)号：EP1362196A2
公开(公告)日：2003-11-19
申请号：EP02717319.4
申请日：2002-01-11
发明人： DAVIS, Leo, W.
IPC分类号： F16F3/00
CPC分类号： F16F9/3405 , B60G17/0152 , B60G17/04 , B60G17/0424 , B60G21/067 , B60G21/103 , B60G2200/132 , B60G2202/15 , B60G2202/24 , B60G2202/414 , B60G2202/415 , B60G2206/41 , B60G2206/42 , B60G2300/32 , B60G2400/206 , B60G2400/91 , B60G2500/11 , B60G2500/203 , B60G2500/204 , B60G2500/2062 , B60G2600/02 , B60G2600/182 , B60G2800/162 , F16F5/00 , F16F9/368 , F16F9/46 , F16F9/512
摘要： A suspension system (20) controls the amount of compressible fluid (42) within struts (28) to determine spring rate coefficients (KS) and dampening coefficients (BS) for the struts (28). the spring rate and dampmening coefficients (KS, BS) are selected to provide foraces (F) which are a sum of several components, which include a desired target static force (Fd) for balancing various forces acting upon a vehicle chassis, comparison of the target strut force (Fd) to the actual force (F) applied by the respective struts (28), comparison of velocity (żS) of the chassis relative to a selected reference datum, and a ride height error (erh). Frequency dependant filtering decreases the spring rate coefficients (KS) when changes in position (ZS) are detected at frequencies (ω) beneath a threshold level (ωK), and decreases the dampening coefficients (BS) when changes in velocity (ZS) are detected at frequencies (ω) above a threshold level (ωB).
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公开(公告)号：EP1362196A4
公开(公告)日：2008-01-16
申请号：EP02717319
申请日：2002-01-11
发明人： DAVIS LEO W
IPC分类号： B60G17/015 , B60G17/04 , B60G21/067 , B60G21/10 , F16F5/00 , F16F9/34 , F16F9/36 , F16F9/46 , F16F9/512 , F16F3/00
CPC分类号： F16F9/3405 , B60G17/0152 , B60G17/04 , B60G17/0424 , B60G21/067 , B60G21/103 , B60G2200/132 , B60G2202/15 , B60G2202/24 , B60G2202/414 , B60G2202/415 , B60G2206/41 , B60G2206/42 , B60G2300/32 , B60G2400/206 , B60G2400/91 , B60G2500/11 , B60G2500/203 , B60G2500/204 , B60G2500/2062 , B60G2600/02 , B60G2600/182 , B60G2800/162 , F16F5/00 , F16F9/368 , F16F9/46 , F16F9/512
摘要： A suspension system (20) controls the amount of compressible fluid (42) within struts (28) to determine spring rate coefficients (KS) and dampening coefficients (BS) for the struts (28). the spring rate and dampmening coefficients (KS, BS) are selected to provide foraces (F) which are a sum of several components, which include a desired target static force (Fd) for balancing various forces acting upon a vehicle chassis, comparison of the target strut force (Fd) to the actual force (F) applied by the respective struts (28), comparison of velocity (żS) of the chassis relative to a selected reference datum, and a ride height error (erh). Frequency dependant filtering decreases the spring rate coefficients (KS) when changes in position (ZS) are detected at frequencies (ω) beneath a threshold level (ωK), and decreases the dampening coefficients (BS) when changes in velocity (ZS) are detected at frequencies (ω) above a threshold level (ωB).
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