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:
Dec. 03, 2013
Filed:
May. 29, 2008
Kiyoshi Maekawa, Chiyoda-ku, JP;
Yuko Takehana, Chiyoda-ku, JP;
Satoshi Mizogami, Chiyoda-ku, JP;
Masahiko Hirano, Nagoya, JP;
Kiyoshi Maekawa, Chiyoda-ku, JP;
Yuko Takehana, Chiyoda-ku, JP;
Satoshi Mizogami, Chiyoda-ku, JP;
Masahiko Hirano, Nagoya, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A residual-velocity calculating unit calculates a residual velocity that corresponds to a velocity increment when an acceleration is reduced from a current command acceleration to zero according to an acceleration reduction curve. A differential-velocity calculating unit calculates a differential velocity vs=v-vn, which is a difference between a target velocity vand a current velocity command for every command generation period. An acceleration-reduction-start-timing determining unit compares the residual velocity to the differential velocity for determining whether acceleration reduction starts. When a condition that the residual velocity is equal to or larger than the differential velocity is satisfied, the acceleration-reduction-start-timing determining unit determines the start of the acceleration reduction and starts to reduce the command acceleration according to the acceleration reduction curve generated by the command generating unit.