Rotation sensing device for detecting a fine displacement of a handle and control system in electrical power steering device
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United States of America Patent
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-
Nov 28, 1995
Grant Date -
N/A
app pub date -
Feb 25, 1994
filing date -
Feb 25, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A rotation sensing device for detecting a fine displacement of a handle and control system for use in an electrical power steering device in vehicles and a motor driving device in industrial machines. The rotation sensing device has a fixing member with a support plate and a plurality of polarity plates fixed to one side of the support plate at a predetermined interval, and a dielectric member with a plurality of dielectric plates fixed to one side of a handle shaft of the handle at a predetermined interval and movingly inserted into the interval between each of the polarity plates. Therefore, the capacitance of the dielectric member can be variable based on a mechanical displacement of the handle.
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