Method of influencing the inflection angle of railway vehicle wagons, and railway vehicle for carrying out this method

A multi-unit railway vehicle, comprising:

• a plurality of car bodies, each of said bodies elastically mounted to a corresponding two-axial truck by means of a plurality of secondary springs;
• a plurality of single center pivots, said pivots pivotally coupling said car bodies to one another;
• an articulation angle sensor on each of the single center pivots;
• a torsional angle sensor at least between a first truck and the corresponding car body;
• a control unit connected to the articulation and torsional angle sensors;
• and
• a controllable actuator system on the center pivot, between the neighboring car bodies, wherein the angle sensors emit actual value signals that are transmitted to the control unit which, in a first control step, generates and stores a simulation of the track segment over which the train is currently traveling from the actual value signals of the angle sensors and the geometric dimensions between the center pivot and the neighboring trucks, and on the basis of the lowest energy of the secondary spring elements for the static operation of the car bodies, generates set point signals for the articulation angle and the torsional angle, and compares the actual value signals with the corresponding set point signals, at least one controllable actuator system is provided on the center pivot, between the neighboring car bodies or between the truck and the corresponding car bodies, and the actuator system is controlled through the control unit as a function of the comparison of the actual and set point signals.

A control device for influencing an articulation angle between longitudinal axes of neighboring car bodies of a multi-unit railway vehicle traveling on a track, the car bodies of which are each elastically mounted by means of secondary springs on only one two-axle truck, and each two neighboring car bodies are pivotably coupled to one another by means of a single center pivot, comprising:

• means for storing an algorithm for determining the minimum energy stored in the secondary springs derived from an actual value of at least one articulation angle and a torsional angle and referenced to a predetermined track segment;
• means for generating set points for the articulation angle and torsional angle;
• and
• means for controlling an actuator system of the multi-unit railway vehicle that counteracts deviation of the car bodies from the set points.