SYSTEM HAVING A FIRST ELECTRIC MOTOR AND A SECOND ELECTRIC MOTOR FOR DRIVING A STRING

摘要

An exemplary system includes a first electric motor and a second electric motor, which are coupled mechanically to one another via a common string of the system. The string has a torsional natural oscillation at a natural frequency. A first oscillating torque acts on the string by the first electric motor and a second oscillating torque acts on the string by the second electric motor. The second electric motor is arranged with respect to the first electric motor such that the effect of the second oscillating torque on the string results in damping of the excitation of the natural oscillation owing to the first oscillating torque.

主权项

1. A system comprising:
a first electric motor and a second electric motor, which are coupled mechanically to one another via a common string, wherein the string has a torsional natural oscillation at a natural frequency, wherein a first oscillating torque acts on the string by the first electric motor and a second oscillating torque acts on the string by the second electric motor, and wherein the first electric motor and the second electric motor are arranged on respectively opposite end regions of the string, and wherein the second electric motor is arranged with respect to the first electric motor such that an effect of the second oscillating torque on the string results in damping of an excitation of the natural oscillation by the first oscillating torque.