Invention Grant
US09335361B2 Method and apparatus for monitoring a multi-phase electrical system on a vehicle
有权
用于监测车辆上的多相电气系统的方法和装置
- Patent Title: Method and apparatus for monitoring a multi-phase electrical system on a vehicle
- Patent Title (中): 用于监测车辆上的多相电气系统的方法和装置
-
Application No.: US13910096Application Date: 2013-06-04
-
Publication No.: US09335361B2Publication Date: 2016-05-10
- Inventor: Silva Hiti , Steven E. Schulz , Millin Perisic , William R. Cawthorne , Mark A. Vernacchia , Aubrey Walter Downs, Jr. , Gabriel Gallegos-Lopez , Michael D. Haggerty
- Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Applicant Address: US MI Detroit
- Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Current Assignee Address: US MI Detroit
- Main IPC: G01R31/00
- IPC: G01R31/00 ; G01R31/02 ; B60L3/00
Abstract:
An electric machine electrically connects to an inverter via a multi-phase power circuit. A method for monitoring the multi-phase power circuit includes non-intrusively adjusting a commanded AC electric current from the inverter after a prescribed time period and comparing a measured magnitude of AC electric current in the multi-phase power circuit with a minimum threshold. Presence of an open circuit fault in the multi-phase power circuit can be detected based upon the comparison.
Public/Granted literature
- US20140354292A1 METHOD AND APPARATUS FOR MONITORING A MULTI-PHASE ELECTRICAL SYSTEM ON A VEHICLE Public/Granted day:2014-12-04
Information query
