CN101267954A - 汽车的稳定器组件 - Google Patents

汽车的稳定器组件 Download PDF

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CN101267954A
CN101267954A CNA2006800348808A CN200680034880A CN101267954A CN 101267954 A CN101267954 A CN 101267954A CN A2006800348808 A CNA2006800348808 A CN A2006800348808A CN 200680034880 A CN200680034880 A CN 200680034880A CN 101267954 A CN101267954 A CN 101267954A
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roll bar
bar assembly
fluid pressure
pressure
actuating cylinder
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迪尔克·克塞尔格鲁贝尔
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ZF Automotive Germany GmbH
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TRW Automotive GmbH
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00Resilient 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
    • B60G17/02Spring characteristics, e.g. mechanical springs and mechanical adjusting means
    • B60G17/027Mechanical springs regulated by fluid means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00Resilient 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
    • B60G17/02Spring characteristics, e.g. mechanical springs and mechanical adjusting means
    • B60G17/027Mechanical springs regulated by fluid means
    • B60G17/0277Mechanical springs regulated by fluid means the mechanical spring being a torsion spring
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00Resilient 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
    • B60G17/015Resilient 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
    • B60G17/016Resilient 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
    • B60G17/0162Resilient 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G21/00Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
    • B60G21/02Interconnection 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
    • B60G21/04Interconnection 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
    • B60G21/05Interconnection 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
    • B60G21/055Stabiliser bars
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G21/00Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
    • B60G21/02Interconnection 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
    • B60G21/04Interconnection 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
    • B60G21/05Interconnection 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
    • B60G21/055Stabiliser bars
    • B60G21/0551Mounting means therefor
    • B60G21/0553Mounting means therefor adjustable
    • B60G21/0555Mounting means therefor adjustable including an actuator inducing vehicle roll
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/10Type of spring
    • B60G2202/13Torsion spring
    • B60G2202/135Stabiliser bar and/or tube
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/30Spring/Damper and/or actuator Units
    • B60G2202/32The spring being in series with the damper and/or actuator
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/40Type of actuator
    • B60G2202/41Fluid actuator
    • B60G2202/413Hydraulic actuator
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/40Type of actuator
    • B60G2202/41Fluid actuator
    • B60G2202/414Fluid actuator using electrohydraulic valves
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2500/00Indexing codes relating to the regulated action or device
    • B60G2500/20Spring action or springs

Abstract

汽车的稳定器组件,包括第一流体压力促动器和第二流体压力促动器,它们配置于一个横向稳定器(12)的相对的两端,其特征在于,在每一流体压力促动器上设置刚好一个压力流体接头。

Description

汽车的稳定器组件
本发明涉及一种汽车的稳定器组件,包括第一流体压力促动器和第二流体压力促动器,它们配属于一个横向稳定器的相对的两端。
这样的稳定器组件在主动式底盘中用于抑制或控制在弯道行驶时车体的摆动运动。其中,特别是自身作用的被动横向稳定器的应用长久以来是已知的。这样的横向稳定器包括一个弹性的中间部分,其可旋转地安装在汽车车体上;以及包括两个杠杆,它们连接于各车轮悬架。这样,如果在一个汽车侧面,与另一汽车侧面相比,配置有横向稳定器的汽车轴与车体之间的垂直间距发生改变,则随着间距变化的增大,越来越大地弹性拉紧横向稳定器。由此产生一摆动力矩,它力图将车身拧向这样一个位置,在该位置,汽车轴的两端到车体具有相同的间距。
这种横向稳定器的单独应用的基本缺点在于,其阻碍轴在一侧的弹性运动(减震弹动),而该弹性运动例如在单侧车行道不平坦的情况下是必需的。
上述的主动式底盘用于解决这个问题。在该主动式底盘中,借助于促动器,根据汽车参数和交通状况来改变底盘特性,例如通过对横向稳定器施加预力或者卸掉负荷的方式。这使得汽车能够更好地适应相应的交通状况,例如在弯道行驶时改善地面附着力。
DE 44 43 809 A1公开了例如这样一种稳定器组件,它包括一个成两部分构成的横向稳定器,横向稳定器的两端可以借助于一液压的旋转驱动装置彼此相对拉紧。这种旋转驱动装置必须以很小的公差制造并且高花费地进行密封。因此它们是昂贵的。此外它们在运行中还需要较多地维护并且易于发生故障。
同一类的WO 02/083439 A1披露了一种稳定器组件,它包括一横向稳定器,该横向稳定器可以经由两个线性的液压促动器连接于各车轮。每一设计为活塞-缸单元的液压促动器具有两个压力接头,通过这些压力接头,可向两个在每一促动器中存在的缸室施加压力。为此设置一个或多个控制阀、许多液压管道和一个液压泵及所配的贮液箱,它们形成一种较为复杂的结构设置,有相当大的空间需要。
针对于此,本发明提供一种开头所述型式的稳定器组件,其特点是具有简单的构造方式和明显减小的结构空间,并因此可特别经济地实现。
为此,在开头所述型式的稳定器组件中,在每一流体压力促动器上设置刚好一个压力流体接头。与现有技术相比,按这种方式建立的系统是明显简单化的,并因此可经济地制造而且不易发生故障。
优选地,流体压力促动器是一种线性流体压力促动器,其特点是结构简单,并因此特别可靠地工作。
按照一种优选的实施形式,流体压力促动器是液压缸,而压力流体接头是液压接头。液压缸是标准构件,其可便宜地供给使用。
有利地,液压缸具有一复位元件,该复位元件设置于液压缸的内腔中。这种设置所提供的优点是,具有特别小的空间需要。
优选地液压缸具有一活塞,该活塞通过复位元件被加载而置于一中立位置。因此只需要一个液压接头,用以将活塞置于一移出位置,而通过复位元件可以使活塞返回中立位置。并且,由于该中立位置不像其他在液压缸中常见的情况那样限于活塞的一个中心位置,因此可以通过适当选择活塞中立位置而得到一种以轴向尺寸特别地小为特征的液压缸。
有利地,活塞将液压缸的内腔分为第一室和第二室,其中,第一室经由液压接头连接于压力源,而第二室处于大气压力下。在液压缸的适当设计中,活塞杆在第二室内并且从该第二室向外延伸,因此围绕活塞杆的密封是不需要的,这样便使液压缸可以特别简单和便宜地制造。
复位元件可以设置在第一室内。按这种方式,第二室可以完全用于活塞行程。
按照一种优选的实施形式,复位元件是螺旋弹簧,它是一种可靠的、几乎免维护的并且还便宜的构件。
优选地,设有一阀,用以操纵两个流体压力促动器,该阀设置在一压力源与各压力流体接头之间。这样得到一种特别简单构造的液压系统,包括最少量的部件,其中,所设的这个唯一的阀控制整个系统。
有利地,所述阀具有一个中立位置和两个操纵位置,其中,在每一操纵位置分别操纵一个液体压力促动器。由此得到一种不复杂且不易发生故障的设置。
按照一种优选的实施形式,在阀的中立位置,两个流体压力促动器都与一压力源的储存容器连通。这样就能够实现各流体压力促动器不仅与储存容器而且相互间的压力变换,由此,机械的横向稳定器在中立位置被桥接。
由以下借助附图对一种优选实施形式的描述可得出本发明的其他特征和优点。其中:
图1本发明的稳定器组件在中立位置的示意图;以及
图2图1的稳定器组件在一操纵位置的示意图。
图1示意表示出一稳定器组件10,其包括用于汽车的一个轴的横向稳定器12。横向稳定器12具有一个在图中左边的杠杆臂14、一个在图中右边的杠杆臂16以及一中间部分18。中间部分18围绕其纵向轴线可旋转地支承于汽车车体上的两轴承20和22中,而两杠杆臂14和16则分别连接于一个液压缸24或26形式的线性流体压力促动器。
每一液压缸24或26包括一活塞28或30和一缸体32或34,其中,活塞28或30固定在横向稳定器12的杠杆臂14或16上并且缸体32或34可连接于相应的车轮悬架。因此,液压缸24和26取代通常存在的连接杆,后者将横向稳定器12的杠杆臂24和26连接于汽车的车轮悬架。这样,未示出的各车轮是连接于各固定点35的。
通过活塞28和30将缸体32和34分别分为第一室36或38和第二室40或42。在第一室36或38中设置一螺旋弹簧44或46形式的复位元件,其将相应的活塞28或30与所属的缸体32或34相连接。
第二室40或42(活塞28或30的活塞杆48或50在其中延伸)在这里相对于大气并不密封,因此处于大气压力下。而第一室36或38则通过活塞28或30密封,并且经由一压力流体接头,更准确地说是经由一液压接头52或54和一所属的液压管道56或58与一压力源60连通。
压力源60包括一液压泵62和一无压力的储存容器64。在液压缸24或26与压力源60之间设有一阀66,用以控制稳定器组件10。阀66(例如可以是一电磁阀)具有一个中立位置II和两个操纵位置I或III。在中立位置II,两液压缸24和26都与储存容器64连通。
在图1所示的稳定器组件10的状态下,阀66和两液压缸24或26均处于中立位置。活塞28或30的中立位置由弹簧44或46所确定,其中,按所示的实施形式,活塞28或30的中立位置选择为,在中立位置时第一室36或38的尺寸显著小于第二室40或42。借此,在液压缸24或26结构尺寸不变的情况下,与传统的线性促动器相比,为活塞28或30提供了几乎是两倍的行程高度,对于传统的线性促动器,活塞在中立位置是居中的。
现在如果出现这样的情况,即,需要增大在车体与配置于图中左边的横向稳定器12杠杆臂14的车轮之间的间距,则将阀66接通到图2所示的操纵位置I。由此,通过液压接头52向图中左边的液压缸24的第一室36加载压力,从而使活塞28克服第二室40中存在的大气压力向下移动,而图中右边的液压缸26被锁定于其中立位置。此时,处在压力下的液压缸24旋转横向稳定器12,这样就可以对车体提供一种受控的摆动力矩。
按类似方式可以操纵图中右边的液压缸36,即,将阀66接通到操纵位置III,同时左边的液压缸24则被锁定于其中立位置。
在阀66接通到中立位置II以后,基于弹簧44或46的恢复力以及从外面作用在汽车上的力,使各偏移的活塞28或30实现返回。

Claims (11)

1.汽车的稳定器组件,包括第一流体压力促动器和第二流体压力促动器,它们配置于一个横向稳定器(12)的相对的两端,其特征在于,在每一流体压力促动器上设置刚好一个压力流体接头。
2.按照权利要求1所述的稳定器组件,其特征在于,所述流体压力促动器是一种线性流体压力促动器。
3.按照权利要求1或2所述的稳定器组件,其特征在于,所述流体压力促动器是液压缸(24、26),而所述压力流体接头是液压接头(52、54)。
4.按照权利要求3所述的稳定器组件,其特征在于,所述液压缸(24、26)具有一复位元件,该复位元件设置在液压缸(24、26)的内腔中。
5.按照权利要求4所述的稳定器组件,其特征在于,所述液压缸(24、26)具有一活塞(28、30),该活塞通过所述复位元件被加载而置于一中立位置。
6.按照权利要求5所述的稳定器组件,其特征在于,所述活塞(28、30)将液压缸(24、26)的内腔分为第一室(36、38)和第二室(40、42),其中,所述第一室(36、38)经由液压接头(52、54)与一压力源(60)连接,而所述第二室(40、42)处于大气压力下。
7.按照权利要求6所述的稳定器组件,其特征在于,所述复位元件设置在所述第一室(36、38)内。
8.按照权利要求4至7之一项所述的稳定器组件,其特征在于,所述复位元件是螺旋弹簧(44、46)。
9.按照上述权利要求之一项所述的稳定器组件,其特征在于,设有一阀(66),用以操纵两个流体压力促动器,该阀设置在一压力源(60)与各压力流体接头之间。
10.按照权利要求9所述的稳定器组件,其特征在于,所述阀(66)具有一个中立位置(II)和两个操纵位置(I、III),其中,在每一操纵位置(I、III)分别操纵一个流体压力促动器。
11.按照权利要求10所述的稳定器组件,其特征在于,在所述阀(66)的中立位置(II),两个流体压力促动器都与压力源(60)的储存容器(64)连通。
CNA2006800348808A 2005-09-21 2006-07-20 汽车的稳定器组件 Pending CN101267954A (zh)

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US20090302555A1 (en) 2009-12-10
US8256775B2 (en) 2012-09-04
WO2007033718A1 (de) 2007-03-29
DE202005014926U1 (de) 2005-11-24
DE112006002527A5 (de) 2008-08-14

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