Suspension control apparatus

Details Suspension control apparatus Suspension control apparatus

2009-05-19

2011-12-27

Dickson, Paul N (Department: 3616)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Vehicle subsystem or accessory control

C701S037000, C280S005500

Reexamination Certificate

active

08086377

ABSTRACT:
The present invention provides a suspension control apparatus capable of an excellent vibration control by a model thereof designed to incorporate nonlinearity and a time-lag element of a control damper. The present invention employs the backstepping method which is one of nonlinear control methods, and is designed so as to incorporate the nonlinearity of a damper4. In addition, a nonlinear controller5uses a damping force Fu obtained by expressing the dynamics of a damping force characteristic variable portion [damping force Fu(v, i)] by a first-order lag system, so as to compensate the dynamics of the damper4, whereby a control system is formed so as to incorporate the time-lag element of the control damper. As a result, it is possible to reduce time lag, and to practically adjust a control force according to the characteristics of the control damper.

REFERENCES:
“Control Design Method of Semi-Active Suspensions with Actuators”, presented by Takanori Fukao, Takafumi Suzuki and Koichi Osuka at the Society of Instrument and Control Engineers Control Division Fifth Conference held on May 25-27, 2005.

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