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| Number | Title | Issue Date |
| 7135829 | Methods and apparatus for controlling a motor/generator Methods and apparatus provide for commutating windings of a polyphase machine such that electromagnetic fields of stator and rotor phases of the polyphase machine produce at least one of motoring and generating torque, wherein the controller is operable to automatic... | 11/14/2006 |
| 7116073 | Methods and apparatus for controlling a motor/generator Methods and apparatus provide for: commutating windings of a polyphase machine such that electromagnetic fields of stator and rotor phases of the polyphase machine produce at least one of motoring and generating torque; providing a first rotor excitation voltage hav... | 10/03/2006 |
