公开(公告)号：US20200150182A1

公开(公告)日：2020-05-14

申请号：US16183895

申请日：2018-11-08

Applicant: GM Global Technology Operations LLC

Inventor： Dave G. RICH ,  Jonathan O. CONELL ,  Robert A. DE STEFANO ,  Saad HASAN ,  Benjamin G. WROBLEWSKI ,  Lyall K. WINGER

IPC: G01R31/327 ,  G01R35/00 ,  G01R31/00 ,  B60L11/18

Abstract: A battery control system includes T contactor paths connected in parallel between a battery and a load, where T is an integer greater than one. Each of the T contactor paths includes a first contactor and a second contactor connected in series with the first contactor. Each of the T contactor paths includes at least one of a first voltage sensor configured to sense a first voltage between the first contactor and the second contactor; and a current sensor configured to sense current flowing through the first contactor and the second contactor. A second voltage sensor is configured to sense a second voltage at one end of the T contactor paths. A third voltage sensor is configured to sense a third voltage at an opposite end of the T contactor paths.