Electric power steering controller
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 12, 2001
Grant Date -
N/A
app pub date -
Mar 19, 1998
filing date -
Sep 5, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
To estimate the rotation speed of the motor for assisting a steering torque regardless of the running state of a vehicle with accuracy, an application voltage estimation value obtained by subtracting a correction voltage obtained based on a detection current value detected by current detection means from the inter-terminal voltage measurement value of the motor is output and the rotation speed of the motor is estimated based on this application voltage estimation value and the detection current value.
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Family
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