Bearing arrangement for a control arm for motor vehicles
A control arm for a motor vehicle, such as a control arm for a front axle in a McPherson construction, has an inside bearing for connecting the control arm with a vehicle body, a wheel suspension bearing for connecting a wheel, and a strut bearing, which is constructed as a hydraulically damped bearing. In order to reduce bothersome torsional steering wheel vibrations, the inside body-side bearing of the control arm has a very stiff construction while the bearing used for the support has a soft construction and is hydraulically damped.
1 . A transverse control arm arrangement for motor vehicles comprising:
an inside vehicle-body-side bearing providing for connection of a control arm with a vehicle body,
a wheel suspension bearing providing for connection of a wheel, and
a strut bearing which is constructed as a hydraulically damped bearing,
wherein the inside bearing has a very stiff construction at least with respect to the strut bearing in a longitudinal direction of the vehicle,
wherein the inside bearing forms a swivelling point for the control arm, and
wherein the strut bearing includes chambers with hydraulic fluid which are connected to each other via a connection line.
2 . The control arm arrangement according to claim 1 , wherein the inside bearing has a stiffness selected to be at least twice as high as a stiffness of the strut bearing in a direction in which movement is to be damped.
3 . The control arm arrangement according to claim 1 , wherein the inside bearing is constructed as a ball joint.
4 . The control arm arrangement according to claim 1 , wherein the strut bearing is constructed as a hydraulic bush.
5 . The control arm arrangement according to claim 1 , wherein the strut bearing is arranged between the inside bearing and the wheel suspension bearing, and wherein a strut which is supported at the vehicle body in an articulated manner is applied to the strut bearing.
6 . The control arm arrangement according to claim 1 , wherein the arrangement is for a front-axle in a McPherson construction.
7 . The control arm arrangement according to claim 2 , wherein the stiffness of the inside bearing is selected to be at least three times as high as the stiffness of the strut bearing.
8 . The control arm arrangement according to claim 2 , wherein the inside bearing is constructed as a ball joint.
9 . The control arm arrangement according to claim 2 , wherein the strut bearing is constructed as a hydraulic bush.
10 . The control arm arrangement according to claim 3 , wherein the strut bearing is constructed as a hydraulic bush.
11 . The control arm arrangement according to claim 2 , wherein the strut bearing is arranged between the inside bearing and the wheel suspension bearing, and wherein a strut which is supported at the vehicle body in an articulated manner is applied to the strut bearing.
12 . The control arm arrangement according to claim 3 , wherein the strut bearing is arranged between the inside bearing and the wheel suspension bearing, and wherein a strut which is supported at the vehicle body in an articulated manner is applied to the strut bearing.
13 . The control arm arrangement according to claim 4 , wherein the strut bearing is arranged between the inside bearing and the wheel suspension bearing, and wherein a strut which is supported at the vehicle body in an articulated manner is applied to the strut bearing.
14 . The control arm arrangement according to claim 6 , wherein the strut bearing is arranged between the inside bearing and the wheel suspension bearing, and wherein a strut which is supported at the vehicle body in an articulated manner is applied to the strut bearing.
15 . The control arm arrangement according to claim 7 , wherein the strut bearing is arranged between the inside bearing and the wheel suspension bearing, and wherein a strut which is supported at the vehicle body in an articulated manner is applied to the strut bearing.
16 . The control arm arrangement according to claim 8 , wherein the strut bearing is arranged between the inside bearing and the wheel suspension bearing, and wherein a strut which is supported at the vehicle body in an articulated manner is applied to the strut bearing.
17 . The control arm arrangement according to claim 9 , wherein the strut bearing is arranged between the inside bearing and the wheel suspension bearing, and wherein a strut which is supported at the vehicle body in an articulated manner is applied to the strut bearing.
18 . The control arm arrangement according to claim 10 , wherein the strut bearing is arranged between the inside bearing and the wheel suspension bearing, and wherein a strut which is supported at the vehicle body in an articulated manner is applied to the strut bearing.
19 . A bearing arrangement adapted to support a transverse control arm arrangement for motor vehicles comprising:
an inside vehicle-body-side bearing,
a wheel suspension bearing, and
a strut bearing, which is constructed as a hydraulically damped bearing,
wherein the inside bearing has a very stiff construction at least with respect to the strut bearing in a longitudinal direction,
wherein the inside bearing forms a swivelling point for a control arm, and
wherein the strut bearing includes chambers with hydraulic fluid which are connected to each other via a connection line.
20 . A bearing arrangement according to claim 19 , wherein the inside bearing has a stiffness selected to be at least twice as high, as a stiffness of the strut bearing in a direction in which movement is to be damped.