Patent ID: 9678118
Date: 2017-06-13
CPC Classifications: B60L,G01R

Claim:
1. A method for testing an absence of voltage on a power electronics component connected with a high-voltage battery and an electric machine in a high-voltage network of a motor vehicle, wherein the power electronics component has an intermediate circuit capacitor, a passive discharge resistor, a plug-in terminal and a fuse arranged upstream of the plug-in terminal, and is connected to at least one high-voltage load via a cable having first and second connectors respectively inserted in the plug-in terminal and in a target terminal, said method comprising after separation of the first or second connector from the plug-in terminal or the target terminal, applying a supply voltage via high-voltage contacts of the plug-in terminal; measuring with a measuring device a voltage course and/or, after a defined charging time period of the intermediate capacitor, a resistance; and determining the absence of voltage when the voltage course is within a first setpoint range or the resistance is within a second setpoint range.