Invention Application
US20090033253A1 ELECTRIC TRACTION SYSTEM FOR A VEHICLE HAVING A DUAL WINDING AC TRACTION MOTOR
审中-公开
具有双绕组交流牵引电动机的电动牵引系统
- Patent Title: ELECTRIC TRACTION SYSTEM FOR A VEHICLE HAVING A DUAL WINDING AC TRACTION MOTOR
- Patent Title (中): 具有双绕组交流牵引电动机的电动牵引系统
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Application No.: US12120705Application Date: 2008-05-15
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Publication No.: US20090033253A1Publication Date: 2009-02-05
- Inventor: James M. NAGASHIMA , Brian A. WELCHKO , George JOHN , Sibaprasad CHAKRABARTI , Milun PERISIC , Gregory S. SMITH
- Applicant: James M. NAGASHIMA , Brian A. WELCHKO , George JOHN , Sibaprasad CHAKRABARTI , Milun PERISIC , Gregory S. SMITH
- Applicant Address: US MI DETROIT
- Assignee: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
- Current Assignee: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
- Current Assignee Address: US MI DETROIT
- Main IPC: H02P27/06
- IPC: H02P27/06 ; H02J7/14
Abstract:
An electric traction system for a vehicle having a high voltage battery and a low voltage battery is provided. The system includes an AC electric motor and a double ended inverter system coupled to the AC electric motor. The AC electric motor has a first set of windings and a second set of windings that occupy common stator slots, where the first set of windings and the second set of windings are electrically isolated from each other. The double ended inverter system drives the AC electric motor using energy obtained from the high voltage battery and energy obtained from the low voltage battery. The double ended inverter system utilizes a first inverter subsystem coupled between the first set of windings and the high voltage battery, and a second inverter subsystem coupled between the second set of windings and the low voltage battery.
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