Patent ID: 9007066
Filing Date: 2015-04-14
Classification: B60L,G01R,H01M,H02J,Y02E,Y02T

Abstract:
1. A system for making high voltage measurements to measure a voltage of a battery pack and detect of an isolation fault, the system comprising: a first resistive divider comprising at least a first resistive element and a second resistive element; a second resistive divider comprising the second resistive element and a third resistive element; a plurality of switches comprising a first switch and a second switch coupled between the second resistive element and the battery pack; and a controller configured to control the plurality of switches to operate in first mode to measure the voltage of the battery pack based on a voltage produced by the first resistive divider, and to control the plurality of switches to operate in at least a second mode to detect an isolation fault based on a voltage produced by the second resistive divider.