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:
Sep. 30, 2003
Filed:
Apr. 25, 2001
Christa Boehringer, Stuttgart, DE;
Ralph Schmidt, Sondermoning, DE;
Johannes Heidenhain, GmbH, Traunreut, DE;
Abstract
A system and method for controlling the acceleration of an armature of an electric drive by generating a high quality acceleration error correction signal z, the system comprising an accelerometer for obtaining a measured armature acceleration value b , which is equal to the product of a true armature acceleration &agr;, and an acceleration measurement transfer function F (p), and means for obtaining a measured acceleration signal, b m, which is generated from a measured substitute acceleration signal b ·b and b m are scaled such that the relationship of b =&agr;·F (p)=b ·F (p) is satisfied. The measured armature acceleration signal b is filtered with a first filter transfer function of F (p), and the measured acceleration signal b is filtered with a second filter transfer function of F (p). The first and second filter outputs are combined to form the partly synthesized high quality acceleration error correction signal z=b ·F (p)+b ·F (p).