Steerable twist-beam rear suspension

摘要

A torsion beam axle for a wheel suspension of a motor vehicle. The torsion beam axle has a torsionally compliant transverse section. A trailing arm is fixed at each opposed end of the transverse section. Each trailing arm supports a wheel carrier that pivots about a respective steering axis. The wheel carriers are connected to one another via ball joints and a tie rod, and couple an actuating mechanism for producing steering movement of the wheel carriers about their respective steering axes. A kinematic coupling system is connected to the tie rod and designed to regulate the degree of freedom of rotational movement of the tie rod. A torsion beam axle in which —to minimizing track angle differences or unsymmetrical bouncing behavior—the tie rod and actuating mechanism maintain optimum kinematic conditions in all operating situations.

主权项

1. A torsion beam axle for a wheel suspension of a motor vehicle, the torsion beam axle comprising:
a torsionally compliant transverse section (1), and a trailing arm (2, 3) being connected to the transverse section (1) at each opposed end thereof, each of the trailing arms (2, 3) supporting a respective wheel carrier (8, 9) that is pivotable about a steering axis (10, 11), the wheel carriers (8, 9) being connected to one another via ball joints (12, 13) and a tie rod (14), and the tie rod (14) being directly coupled to an actuating mechanism (15) for producing a steering movement of the wheel carriers (8, 9) about the respective steering axes (10, 11), the tie rod (14) is coupled to the actuating mechanism (15) by a joint arranged at a center of the tie rod (14) in a transverse direction of the vehicle, and a coupling system (17) being directly connected to the tie rod (14) and designed to restrict rotational movement (18) of the tie rod (14) about an axis defined by the two ball joints (12, 13).