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:
Feb. 26, 2013
Filed:
May. 07, 2009
Bernard Vau, Saint Maur des Fosses, FR;
Bernard Vau, Saint Maur des Fosses, FR;
Ixblue, Marly-le-Roi, FR;
Abstract
A method and a device for robust rejection of the periodic disturbances in a motor-position control structure of the RST type, wherein the assembly including the motor, the position sensor, the element for computing the functions 1/So(z) and Ro(z), in a loop, is called central controller. Within the framework of the invention, to the central controller are added two additional computing elements, the first one being an estimator block E(z) and the second one a modifier block Q(z), as well as an additional loop, the estimator block E(z) allowing a load disturbance estimation signal {circumflex over (v)}(t) to be computed, the modifier block Q(z) receiving the load disturbance estimation signal {circumflex over (v)}(t) as an input, to produce a modified signal, which is applied to a negative input of an additional adder arranged upstream from the element for computing the function 1/So(z) and then forming the additional loop, the modifier block having a variable transfer function.