METHOD OR VOLTAGE DETECTION SYSTEM FOR DETERMINING A CORRECTION PARAMETER FOR A MEASUREMENT CHANNEL AND FOR DETECTING A TERMINAL VOLTAGE OF AN ELECTRIC MOTOR

摘要

The invention relates to a method for determining a correction parameter for a measurement channel (6) connected to a connection terminal (3) of an electric motor (2) for measuring terminal voltages (U1, U2) The connection terminal 3 is connected to the first electric potential via the switching elements T1, T2, T3 and T4 for driving the electric motor 2, and after reaching the steady state of the measurement channel 6, (3) is connected to a second potential different from the first potential by switching of at least one switching element (T1, T2, T3, T4), and the dynamic response of the measuring channel (6) And - the correction parameter for the dynamic response of the measuring channel (6) is determined on the basis of the detected dynamic response of the measuring channel.