Constantin C Stancu, Silva Hiti, James Nagashima: Auxiliary power conversion for an electric vehicle using high frequency injection into a PWM inverter. General Motors Corporation, Anthony Luke Simon, July 17, 2001: US06262896 (17 worldwide citation)

An electric power system for an electric vehicle includes an electric drive motor, a high voltage bus for supplying operating power to energize the drive motor, and an inverter including power switching devices and having an inverter output. The inverter is coupled between the high voltage bus and t ...

James Nagashima: Planar EMI inductor. General Motors Corporation, Cary W Brooks, March 12, 2002: US06356182 (17 worldwide citation)

A power bus bar assembly comprising planar electromagnetic interference (EMI) inductors. An exemplary power bus bar assembly or planar inductor comprises upper and lower E-E magnetic cores, and upper and lower flat bus bars that are insulated from each other. The bus bars have a plurality of core cu ...


James Nagashima, James Souther, Scott D Downer: Method and apparatus for detecting isolation faults in motor/inverter systems. General Motors Corporation, Anthony Luke Simon, April 30, 2002: US06381110 (15 worldwide citation)

A method for detecting an isolation fault in a system comprising a source connected an inverter through a circuit interrupter, the inverter connected to windings of an electric motor for driving the electric motor, is presented. The method comprising operating the inverter (1) to yield a zero net cu ...

James Nagashima, Terence G Ward: Apparatus and method for mounting a power module. General Motors Corporation, Anthony Luke Simon, May 17, 2005: US06892796 (10 worldwide citation)

A power module with heat sources wherein the heat is dissipated by a heat sink. The heat sink includes a manifold with coolant flowing therein. An opening on the manifold enables the coolant to come in direct contact with a base plate of the power module. The power module being retained on the heat ...