The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 26, 2010
Filed:
Jul. 03, 2007
Tatsuya Masamura, Tokyo, JP;
Tatsuya Masamura, Tokyo, JP;
Kayaba Industry Co., Ltd., Tokyo, JP;
Abstract
A damping force control device () 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 () which supplements a minimum damping force (Fdn) that can be generated by the shock absorber (Dn) with a variable damping force (Fcn). The device () comprises a control portion () which calculates a deviation (εn) between a damping force target value (Fsn) and the minimum damping force (Fdn) (S), and open-loop controls the damping force varying mechanism () 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) (S-S), thereby optimizing damping force control of the shock absorber (Dn), which has a non-linear damping characteristic.