Invention Grant
- Patent Title: Redundant DC bus discharge for an electric motor system
- Patent Title (中): 用于电动机系统的冗余直流母线放电
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Application No.: US12047120Application Date: 2008-03-12
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Publication No.: US07944160B2Publication Date: 2011-05-17
- Inventor: Silva Hiti , David Tang , Brian A. Welchko , Milun Perisic , Constantin C. Stancu
- Applicant: Silva Hiti , David Tang , Brian A. Welchko , Milun Perisic , Constantin C. Stancu
- 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: H02P21/00
- IPC: H02P21/00

Abstract:
Methods and apparatus are provided for discharging a direct current (DC) bus providing power to a motor control circuit in an electric motor system. The method includes the steps of detecting a predetermined discharge signal and generating operational control signals comprising phase currents for dissipating energy from the DC bus through a passive load in response to detecting the predetermined discharge signal, wherein the passive load includes motor windings of an electric motor of the electric motor system. The method also includes the step of providing the operational control signals to the motor control circuit for discharging the DC bus through the motor control circuit and the motor windings of the electric motor.
Public/Granted literature
- US20090230909A1 REDUNDANT DC BUS DISCHARGE FOR AN ELECTRIC MOTOR SYSTEM Public/Granted day:2009-09-17
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