Active seat suspension control system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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May 3, 2005
Grant Date -
May 13, 2004
app pub date -
Nov 13, 2002
filing date -
Nov 13, 2002
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A suspension system supports a seat with respect to a base mounted on a frame of a vehicle. The system includes a hydraulic actuator coupled between the seat and the base. A single accelerometer is attached to the base and generates a base acceleration signal in response to motion of the base. A control unit actively controls the hydraulic actuator as a function of the base acceleration signal. The control unit generates a base velocity signal by integrating the base acceleration signal, generates a seat position signal representing a position of the seat relative to the base, generates a seat position error signal representing a difference between a desired position and the seat position signal, and generates a command signal as a function of the velocity signal and of the position error signal. The control unit controls the actuator by applying the command signal thereto.
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Family
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Cited Art Landscape
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