Westinghouse Electric Corporation

Northrop Grumman Systems Corporation

William B Winkel

William B Hall

Geoffrey B Lansberry

David L Schantz, Jr

Charles S Kerfoot

Frank E Altoz

Frank A Lindberg

Thomas C Underwood

Ngon B Nguyen

James L Munro

Michael J Ankrom

James H DeOms

Ronnie L Starling

Brian H Smith

Patricia A O'Donnell

Beth A Herman

Eric L Mohler

Richard M Young

Joseph J Springer

Marshall G Jones

Todd M Zaranski

Brian A DeAbreu

Aaron D Valdivia

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.

Electric vehicle propulsion system employing AC induction motor control

A method for testing a power bridge for an electric vehicle propulsion system, the power bridge including a switching circuit having first and second switching elements operable between 'on' and 'off' states. The method comprises the steps of selectively switching the first and second switching elements between the 'on' and 'off' states, monitoring the first and second switching elements to determine whether the first and second switching elements operate between the 'on' and 'off' states when selectively switched, and indicating a failure o#the switching circuit when at least one of the first and second switching elements does not operate between the 'on' and 'off' states when selectively switched.

Method and apparatus for testing a power bridge for an electric vehicle

Growing community of inventors

Bowie, MD, United States of America

William B Winkel