System and method for determining operational states of first and second electrical contacts in a motor
A system and a method for determining operational states of first and second electrical contacts in a motor are provided. The motor has first, second, and third phase windings. The first phase winding is electrically coupled between first and second nodes. The second phase winding is electrically coupled between a third node and the second node. The third phase winding is electrically coupled between a fourth node and the second node. The first electrical contact is electrically coupled between the first node and the third node. The second electrical contact is electrically coupled between the third node and the fourth node. The method includes applying a first voltage signal to the first phase winding at a first time and measuring voltage signals at the third and fourth nodes to determine first and second operational states of the first and second electrical contacts.
Delphi Technologies, Inc.
B B H H B
B62D B62D H01H H02H B62D
inventional inventional additional additional inventional
Yulei
Chen