DEVICE FOR A VEHICLE TRAILER, A SYSTEM WITH SAID DEVICE AND A METHOD FOR SAID DEVICE

The invention relates to a system () for a vehicle trailer (), in particular to a semi-trailer () comprising, a function block () with a data input () for receiving gear change signals () of a vehicle (), in particular a utility vehicle (), which tows said vehicle trailer (). The function block () comprises a controller () for generating a torque-increasing request signal () in accordance with a received signal of the gearchange signals () and a data output () for outputting the torque-increasing request signal () to an electric motor control device () of at least one electric drive () of the vehicle trailer (). The invention further relates to a vehicle trailer () with a system () and to a method for operating such a system ().