Method for operating loading device of vehicle e.g. electric vehicle, involves decoupling loading device from power supply system by comparing determined loop impedance with predetermined impedance threshold value

摘要

#CMT# #/CMT# The method involves determining a loop impedance of electric circuit comprising protective earth between loading device (13) and power supply system (16). The loading device is coupled with power supply system through conductor, neutral conductor and protective conductor. The loading device is decoupled from the power supply system by comparing determined loop impedance with predetermined impedance threshold value. #CMT# : #/CMT# An independent claim is included for loading device. #CMT#USE : #/CMT# Method for operating loading device used for charging energy storage device such as rechargeable battery of vehicle (all claimed) such as electric vehicle and hybrid vehicle such as car (from drawings). #CMT#ADVANTAGE : #/CMT# The loading device can be reliably protected against dangerous contact currents on vehicle. Since loading device is decoupled from power supply system, the passenger protection can be assured. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a plan view of the vehicle. 10 : Vehicle 11 : Energy storage device 12 : Electric drive motor 13 : Loading device 16 : Power supply system.