Electricity: motive power systems – Armature circuit control – Plural – diverse or diversely controlled – armature or primary...
Reexamination Certificate
2007-10-02
2007-10-02
Donovan, Lincoln (Department: 2837)
Electricity: motive power systems
Armature circuit control
Plural, diverse or diversely controlled, armature or primary...
C318S747000
Reexamination Certificate
active
10698574
ABSTRACT:
A fault-handling system for a 2-phase motor. When an electric motor is used for power assist in a steering system in a vehicle, malfunctions can cause loss of assist, and detectable vibration. The invention utilizes a 2-phase motor in such an application, and implements alternate modes of operation when certain malfunctions occur, thereby maintaining the assist function in situations wherein the function would otherwise be lost or reduced.
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Gopalarathnam T et al: “Multi-Phase Fault-Tolerant Brushless DC Motor Drives” Conference Record of the 2000 IEEE Industry Applications Conference. 35th IAS Annual Meeting and World Conference on Industrial Applications of Electrical Energy. Rome, Italy, Oct. 8-12, 2000, Conference Record of the IEEE Industry Applications Conference IAS Annual Meeting, New York, NY: IEEE, US-ISBN 0-7803-6402-3, vol: 3 of 5. Conf. 35, Oct. 8, 2000 (Oct. 8, 2000), pp. 1683-1688, XP001043278.
Gallagher Thomas James
Jiang Hong
Kolomeitsev Sergei
Suriano John R.
Whinnery Joseph P.
Donovan Lincoln
Glass Erick
Jacox Meckstroth & Jenkins
Valeo Electrical Systems, Inc.
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