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:
Mar. 16, 2004
Filed:
Oct. 11, 2001
Jean-Jacques Charaudeau, Cottens, CH;
Pierre Alain Magne, Belfaux, CH;
Michelin Recherche et Technique S.A., Granges-Paccot, CH;
Abstract
A vehicle suspension device for controlling the vertical deflection between a suspended mass and a non-suspended mass, including an elastic link mounted between the suspended mass and the non-suspended mass, the said elastic link embodying a spring, a reversible electric actuator acting in parallel with the spring for controlling the relative-deflection movements between suspended mass and non-suspended mass, Z being the distance between the suspended mass and the non-suspended mass, and means for controlling the electric actuator, from an observed variation of the distance Z between the suspended mass and the non-suspended mass due to a deflection of the elastic link, in order that the electric actuator develops a force F having a mass compensation component F =C M A oriented like the acceleration A of the deflection of the non-suspended mass with respect to the suspended mass, with M being the non-suspended mass and C a coefficient, and having a damping component F =−C V opposing the speed V of the said deflection, C being a coefficient.