Monitoring method for checking on troubling behavior in a rail vehicle's drive unit measures the amount of parasitic current generated by a monitored drive unit prior to possible switch-off

摘要

The amount of parasitic current (I) generated by a monitored drive unit (40) is measured by forming a measured value (M), which is compared with a preset threshold value. A switch-off signal (ST1) is generated for switching off the drive unit if the measured value exceeds the threshold value. An independent claim is also included for a monitoring device for a drive unit in a rail vehicle.