Methods of making torque overlay actuators
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United States of America Patent
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Feb 5, 2013
Grant Date -
Dec 25, 2008
app pub date -
Jun 19, 2008
filing date -
Jun 21, 2007
priority date (Note) -
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Abstract
A method for designing a pole piece for a power assist steering system, includes: selecting a number of teeth, k, for the pole piece where k=n/2 and n represents an even number of poles; and selecting a ratio between an angle made by an inner tooth tip and an outer tooth tip, θtp, and an angle made by a magnet pole width, θmp, to provide a desired torque function for the steering system.
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