Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Vehicle subsystem or accessory control
Reexamination Certificate
2007-07-03
2010-10-26
Hellner, Mark (Department: 3663)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Vehicle subsystem or accessory control
C280S005500
Reexamination Certificate
active
07822519
ABSTRACT:
A damping force control device (1) for a shock absorber (Dn) interposed between a sprung member (Bn) and an unsprung member (Wn) of a vehicle (A) comprises a damping force varying mechanism (3) which supplements a minimum damping force (Fdn) that can be generated by the shock absorber (Dn) with a variable damping force (Fcn). The device (1) comprises a control portion (2) which calculates a deviation (εn) between a damping force target value (Fsn) and the minimum damping force (Fdn) (S207), and open-loop controls the damping force varying mechanism (3) using a variable damping force (Fcn) calculated on the basis of the deviation (εn) such that the damping force generated by the shock absorber (Dn) coincide with the damping force target value (Fsn) (S208-S212), thereby optimizing damping force control of the shock absorber (Dn), which has a non-linear damping characteristic.
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Algahaim Helal A
Hellner Mark
Kayaba Industry Co. Ltd.
Rabin & Berdo P.C.
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