1
Scott D Downer, James F Lazar, James M Nagashima: Electrical motor power management system. General Motors Corporation, Christopher DeVries, August 19, 2003: US06608396 (80 worldwide citation)

A power control system for an electric traction motor in a vehicle comprising at least one inverter for providing conditioned electrical power to the electric traction motor, a plurality of power stages for providing DC power to the at least one inverter, each stage including a battery and boost/buc ...


2
Terence G Ward, Scott D Downer: Pin fin heat sink and pin fin arrangement therein. General Motors Corporation, Anthony Luke Simon, January 16, 2001: US06173758 (56 worldwide citation)

A pin fin heat sink having mixed geometry pin fin configurations is presented. The mixed geometry pin fin configuration are designed to optimize the positive attributes of each individual pin fin geometry to provide a low cost overall system and provide better system performance in high flow rate sy ...


3
James M Nagashima, Terence G Ward, Scott D Downer: Integrated power electronics cooling housing. General Motors Corporation, Christopher DeVries, June 11, 2002: US06404628 (48 worldwide citation)

A power electronics cooling housing for use in a power electronics system. The power electronics cooling housing has a body with a coolant cavity formed in one surface and a capacitor bus assembly potting cavity formed in an opposite surface. A bus bar passthrough opening is formed through the body. ...


4
James M Nagashima, Terence G Ward, Scott D Downer: Power electronics system with fully-integrated cooling. General Motors Corporation, Christopher DeVries, November 6, 2001: US06313991 (31 worldwide citation)

A thermally cooled power electronics system. A cooling housing has a body with a coolant cavity formed in one surface and a capacitor bus assembly potting cavity formed in an opposite surface. A bus bar passthrough opening is formed through the body, along with a coolant inlet and outlet manifolds h ...


5
Khwaja M Rahman, Silva Hiti, Scott D Downer, Brian Welchko: Multiple inverter system with low power bus ripples and method therefor. General Motors Corporation, Christopher DeVries, March 8, 2005: US06864646 (29 worldwide citation)

A multiple inverter system is powered from a common energy source such as a battery. First and second inverters are coupled to the common energy source and drive corresponding motors. First and second controllers provide pulse width modulated signals, modulated with respect to first and second clock ...


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George R Woody, Scott D Downer: High frequency power and communications cable. Delco Electronics, Mark A Navarre, July 7, 1998: US05777273 (15 worldwide citation)

An electrical cable for use in high-frequency, high power applications, such as with an inductive charging system used to charge batteries of an electric vehicle. The cable has multiple twisted-pairs of separately insulated stranded wire arranged in a pseudo-Litz wire architecture that surround a co ...


8
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 ...


9
Stanley K Fujii, Scott D Downer, Wade E Char: Induction motor load compensation for power steering applications. General Motors Corporation, Anthony Luke Simon, August 14, 2001: US06274999 (14 worldwide citation)

An induction motor control system for use in a power steering system, comprising: a power steering induction motor coupled to a power supply and providing motive input to pressurize a hydraulic steering subsystem; a phase current sensor for sensing the phase current output by the power supply; and a ...


10
George R Woody, Scott D Downer: Inductive coupler assembly having its primary winding formed in a printed wiring board. Delco Electronics, Mark A Navarre, December 30, 1997: US05703462 (14 worldwide citation)

An inductive coupler having an antenna and primary winding formed as part of a single structure that can be readily and consistently produced using printed wiring board manufacturing techniques. The coupler has the primary winding and antenna are formed as part of a printed wiring board. A coupler h ...