公开(公告)号：US10605844B2

公开(公告)日：2020-03-31

申请号：US14688658

申请日：2015-04-16

申请人： Ford Global Technologies, LLC

发明人： Michael Edward Loftus ,  Alan Scarantino ,  Robert Leland Crandell, Jr.

IPC分类号： G01R31/00 ,  G01R35/00 ,  G01R31/02 ,  B60L3/00 ,  B60L50/16 ,  B60L58/20

摘要： An isolation test system for a vehicle includes a communication interface, a current sensor, a plurality of impedances and a controller. The controller is programmed to electrically connect a selected one of the impedances between a traction battery of the vehicle and a low voltage subsystem of the vehicle. The connection creates a leakage path between the traction battery and the subsystem. The controller is further programmed to output a diagnostic status based on a current associated with the leakage path and a signal received via a communication interface indicative of an isolation fault between the battery and subsystem.