US-20260125110-A1 - Wheel Suspension System for a Vehicle Wheel of a Motor Vehicle, and Motor Vehicle

US20260125110A1US 20260125110 A1US20260125110 A1US 20260125110A1US-20260125110-A1

Abstract

A wheel suspension system for a vehicle wheel of a motor vehicle, with a wheel support, and with a steering knuckle, on which the vehicle wheel can be mounted pivotably, wherein, in order to steer the pivot bearing and the vehicle wheel, the pivot bearing is mounted on the wheel support pivotably about a pivot axis relative to the wheel support. At least two wheel links which are coupled in an articulated manner to the wheel support are provided, including a first wheel link and a second wheel link, via which the wheel support can be attached in an articulated manner to a chassis of the motor vehicle. A third wheel link which is coupled in an articulated manner to the pivot bearing via a rubber bearing is provided, via which third wheel link the pivot bearing can be pivoted about the pivot axis relative to the wheel support to steer the pivot bearing and the vehicle wheel.

Inventors

Norbert Deixler
Sebastian Gielisch
Martin Waldmann

Assignees

BAYERISCHE MOTOREN WERKE AKTIENGESELLSCHAFT

Dates

Publication Date: 20260507
Application Date: 20231004
Priority Date: 20221004

Claims (20)

1 - 15 . (canceled)
16 . A wheel suspension for a vehicle wheel of a motor vehicle, the wheel suspension comprising: a wheel holder; a pivot bearing, on which the vehicle wheel is rotatably mountable, wherein the pivot bearing is mounted on the wheel holder to be pivotable about a pivot axis relative to the wheel holder to steer the pivot bearing and the vehicle wheel; at least two check rails coupled in an articulated manner to the wheel holder, the at least two check rails including a first check rail and a second check rail, via which the wheel holder is connectable in an articulated manner to a chassis of the motor vehicle; a third check rail which is coupled in an articulated manner to the pivot bearing via a connecting element and via which the pivot bearing is pivotable about the pivot axis relative to the wheel holder to steer the pivot bearing and the vehicle wheel; and a spring and/or damper element, via which the wheel holder and the pivot bearing are spring-loadable and/or dampable on a body of the motor vehicle.
17 . The wheel suspension according to claim 16 , wherein the third check rail is coupled in an articulated manner to the pivot bearing via exactly one mounting point comprising the connecting element.
18 . The wheel suspension according to claim 16 , wherein the second check rail is designed as a four-point rocker, which: is coupled to the wheel holder in an articulated manner via exactly two first mounting points which are spaced apart from one another; and precisely two second mounting points which are spaced apart from one another and via which the four-point rocker is couplable to the chassis in an articulated manner.
19 . The wheel suspension according to claim 17 , wherein the second check rail is configured as a four-point rocker, which: is coupled to the wheel holder in an articulated manner via exactly two first mounting points which are spaced apart from one another; and precisely two second mounting points which are spaced apart from one another and via which the four-point rocker is couplable to the chassis in an articulated manner.
20 . The wheel suspension according to claim 16 , wherein the second check rail is configured as a three-point rocker, which: is coupled to the wheel holder in an articulated manner via exactly one first mounting point; and exactly two second mounting points spaced apart from the first mounting point and spaced apart from one another, and via the two second mounting points the three-point rocker is couplable to the chassis in an articulated manner.
21 . The wheel suspension according to claim 17 , wherein the second check rail is configured as a three-point rocker, which: is coupled to the wheel holder in an articulated manner via exactly one first mounting point; and exactly two second mounting points spaced apart from the first mounting point and spaced apart from one another, and via the two second mounting points the three-point rocker is couplable to the chassis in an articulated manner.
22 . The wheel suspension according to claim 20 , wherein a pendulum support which is coupled in an articulated manner to the three-point rocker via a third mounting point spaced apart from the first mounting point and by the second mounting points and via a fourth mounting point spaced apart from the first mounting point, from the second mounting points and from the third mounting point, to the wheel holder.
23 . The wheel suspension according to claim 21 , wherein a pendulum support which is coupled in an articulated manner to the three-point rocker via a third mounting point spaced apart from the first mounting point and by the second mounting points and via a fourth mounting point spaced apart from the first mounting point, from the second mounting points and from the third mounting point, to the wheel holder.
24 . The wheel suspension according to claim 22 , wherein a second pendulum support which is coupled in an articulated manner to the wheel holder via a fifth mounting point spaced apart from the first mounting point, from the second mounting points, from the third mounting point and from the fourth mounting point, and via a sixth mounting point spaced apart from the first mounting point, from the second mounting points, from the third mounting point, from the fourth mounting point and from the fifth mounting point, to the first check rail.
25 . The wheel suspension according to claim 20 , wherein a pendulum support which is coupled in an articulated manner to the wheel holder via a third mounting point spaced apart from the first mounting point and by the second mounting points and via a fourth mounting point spaced apart from the first mounting point, from the second mounting points and from the third mounting point, to the first check rail.
26 . The wheel suspension according to claim 21 , wherein a pendulum support which is coupled in an articulated manner to the wheel holder via a third mounting point spaced apart from the first mounting point and by the second mounting points and via a fourth mounting point spaced apart from the first mounting point, from the second mounting points and from the third mounting point, to the first check rail.
27 . The wheel suspension according to claim 16 , wherein at least four check rails, including the first check rail, the second check rail, a fourth check rail and a fifth check rail, are coupled in an articulated manner to the wheel holder, and the wheel holder is connectable in an articulated manner to the chassis of the motor vehicle via the at least four check rails.
28 . The wheel suspension according to claim 17 , wherein at least four check rails, including the first check rail, the second check rail, a fourth check rail and a fifth check rail, are coupled in an articulated manner to the wheel holder, and the wheel holder is connectable in an articulated manner to the chassis of the motor vehicle via the at least four check rails.
29 . The wheel suspension according to claim 27 , wherein a pendulum support which is coupled to the wheel holder in an articulated manner via a first mounting point and is coupled in an articulated manner to the first check rail, which is spaced apart from the first mounting point, and which is coupled in an articulated manner to another one of the four check rails which are coupled in an articulated manner to the wheel holder.
30 . The wheel suspension according to claim 27 , wherein: the second check rail is coupled to the wheel holder in an articulated manner via exactly one third mounting point and has exactly one fourth mounting point which is spaced apart from the third mounting point and via which the second check rail is couplable in an articulated manner to the chassis; the fourth check rail is coupled to the wheel holder in an articulated manner via exactly one fifth mounting point and has exactly one sixth mounting point which is spaced apart from the fifth mounting point and via which the fourth check rail is couplable in an articulated manner to the chassis; and/or the fifth check rail is coupled to the wheel holder in an articulated manner via precisely one seventh mounting point and has exactly one eighth mounting point which is spaced apart from the seventh mounting point and via which the fifth check rail is couplable in an articulated manner to the chassis.
31 . The wheel suspension according to claim 16 , wherein the first check rail is coupled to the wheel holder in an articulated manner via precisely one mounting point.
32 . The wheel suspension according to claim 31 , wherein the mounting point, via which the first check rail is coupled in an articulated manner to the wheel holder, has a second connecting element, which is coupled to the wheel holder or the first check rail via a bearing bolt and, when viewed in a radial direction of the bearing bolt, has a bearing stiffness of at least 40 Newton meters per degree.
33 . The wheel suspension according to claim 16 , wherein the first check rail is coupled in an articulated manner to the wheel holder via precisely two mounting points spaced apart from one another.
34 . The wheel suspension according to claim 16 , wherein the pivot bearing is mounted on the wheel holder to be pivotable about the pivot axis relative to the wheel holder via at least one bearing, wherein the pivot bearing has a recess in which the bearing is at least partially arranged, and wherein the wheel holder engages in the recess.

Description

BACKGROUND AND SUMMARY The invention relates to a wheel suspension for, in particular precisely, a vehicle wheel of a motor vehicle according to the preamble of the independent claim. Furthermore, the invention relates to a motor vehicle having at least one such wheel suspension. DE 102014226225 A1 discloses a wheel suspension arrangement of an axle arrangement for a vehicle as known. In addition, WO 2015/144482 A1 discloses a steering device for a motor vehicle for pivoting at least one steerable vehicle wheel which is spring-mounted on a suspension relative to a chassis of the motor vehicle, wherein the steerable vehicle wheel is rotatably mounted on an axle leg, and the steering knuckle is mounted rotatably about a pivot axis in at least one pivot position on the suspension. An object of the present invention is to provide a wheel suspension for, in particular precisely, a vehicle wheel of a motor vehicle and a motor vehicle having at least one such wheel suspension, so that particularly high driving comfort and a particularly large steering angle of the vehicle wheel can be realized. This object is achieved according to the invention by a wheel suspension having the features of the independent claim and by a motor vehicle having the features of the wheel suspension. Advantageous embodiments of the invention are the subject matter of the dependent claims. The first aspect of the invention relates to a wheel suspension for, in particular precisely, a vehicle wheel of a motor vehicle which is simply also referred to as a vehicle and is preferably designed as a passenger car. This means that, via the wheel suspension according to the first aspect of the invention, at least or preferably precisely one vehicle wheel, namely the aforementioned motor vehicle, also referred to as a motor vehicle, can be connected in an articulated manner to a chassis of the motor vehicle. This means that, in its completely produced state, the motor vehicle has the wheel suspension and the vehicle wheel, which, in the completely produced state of the motor vehicle, is connected to the chassis in an articulated manner via the wheel suspension, that is to say is coupled to the chassis. Thus, in its fully manufactured state, the motor vehicle also has the chassis. For example, in its completely produced state, the motor vehicle has a structure which delimits a passenger compartment of the motor vehicle, also referred to as a passenger compartment or passenger compartment. It is conceivable that the structure is the chassis in particular when the structure is designed as a self-supporting body. Furthermore, it is conceivable that the chassis is formed separately from the structure and is held on the structure, in particular in such a way that the chassis, in particular elastically, is mounted on the structure or vice versa. The chassis can be a frame, in particular a lead frame, or an axle support. In particular, the structure can be a self-supporting body, wherein here, for example, the chassis designed as an axle support can be used, which can be mounted, in particular elastically, on the structure. During travel of the motor vehicle, people such as, for example, the driver, can be inside the interior. The feature that the vehicle wheel can be connected or connected in an articulated manner to the chassis via the wheel suspension or by means of the wheel suspension is to be understood in particular to mean that the wheel suspension can be coupled in an articulated manner directly to the chassis or to the structure. In particular, for example, the wheel suspension is connected to the chassis or the structure in an articulated manner, in particular directly, in an articulated manner, that is to say coupled to the chassis or the structure. The vehicle wheel is a ground contact element of the motor vehicle, which is supported or supported on a floor via the ground contact element in the vehicle vertical direction of the motor vehicle. If the motor vehicle is driven along the ground, while the motor vehicle, also referred to as a vehicle, is supported on the ground in the vertical direction of the vehicle in the vertical direction of the motor vehicle, the vehicle wheel is rolled, in particular directly, on the ground. The wheel suspension has a wheel holder. In principle, it is conceivable that the wheel holder is formed in one piece, that is to say it is formed from a single piece. In other words, it is preferably envisaged that the wheel holder is not composed, for example, of a plurality of parts which are formed separately from one another and are connected to one another, but preferably the wheel holder is formed from a single piece and is thus formed as a monoblock or formed by a monoblock. The wheel suspension also has a pivot bearing envisaged in particular in addition to the wheel holder and in particular formed separately from the wheel holder. The pivot bearing is a component which is envisaged in particular in addition to t