Electric vehicle propulsion system employing AC induction motor control

US5831409A · kind A · utility

Assignee

• NORTHROP GRUMMAN CORPORATION · US

Inventors

• Frank A. Lindberg · Greve Strand, DK
• David L. Schantz, Jr. · Ellicott City, US
• Brian H. Smith · Arnold, US
• Charles S. Kerfoot · Pasadena, US
• Joseph J. Springer · Bel Air, US
• Patricia A. O'Donnell · Davidsonville, US
• James H. DeOms · Glen Arm, US
• Ronnie L. Starling · Columbia, US
• Michael J. Ankrom · Baltimore, US
• James L. Munro · Severna Park, US
• Geoffrey B. Lansberry · Cambridge, US
• Beth A. Herman · Columbia, US
• William B. Hall · Dayton, US
• Marshall Gordon Jones · Scotia, US
• William B. Winkel · Bowie, US
• Brian A. DeAbreu · Bowie, US
• Thomas Charles Underwood · Sykesville, US
• Todd M. Zaranski · Baltimore, US
• Aaron Valdivia · Ellicott City, US
• Richard M. Young · Millersville, US
• Frank E. Altoz · Baltimore, US
• Ngon B. Nguyen · Jessup, US
• Eric L. Mohler · Annapolis, US

Key dates

• Filing date: Feb 28, 1997
• Grant date: Nov 3, 1998
• Expiry date: Feb 28, 2017

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/72
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

An electric vehicle propulsion system having a motor with first and second electrically isolated windings and a system control unit for controlling the motor, wherein the system control unit includes a first power bridge for driving the first windings and a second power bridge for driving the second windings.