Invention Grant
- Patent Title: Systems and methods for monitoring current in an electric motor
- Patent Title (中): 用于监测电动机电流的系统和方法
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Application No.: US13049653Application Date: 2011-03-16
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Publication No.: US08558496B2Publication Date: 2013-10-15
- Inventor: Brian A. Welchko , Silva Hiti , Ronald W. Young , David Tang , Gregory S. Smith
- Applicant: Brian A. Welchko , Silva Hiti , Ronald W. Young , David Tang , Gregory S. Smith
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Current Assignee Address: US MI Detroit
- Agency: Ingrassia Fisher & Lorenz, P.C.
- Main IPC: G05B5/00
- IPC: G05B5/00

Abstract:
Systems and methods are provided for monitoring current in an electric motor. An electrical system includes a (DC) interface, an electric motor, an inverter module coupled between the DC interface and the electric motor, a first current sensor between a first phase leg of the inverter module and a first phase of the electric motor to measure a first current flowing through the first phase of the electric motor, a second current sensor between the first phase leg and the DC interface to measure a second current flowing through the first phase leg, and a control module coupled to the first current sensor and the second current sensor. The control module is configured to initiate remedial action based at least in part on a difference between the first current measured by the first current sensor and the second current measured by the second current sensor.
Public/Granted literature
- US20120235622A1 SYSTEMS AND METHODS FOR MONITORING CURRENT IN AN ELECTRIC MOTOR Public/Granted day:2012-09-20
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