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. 05, 2019
Filed:
Aug. 04, 2017
Schneider Electric Industries Sas, Rueil Malmaison, FR;
Delcho Penkov, Saint Martin d'Heres, FR;
Grace Gandanegara, Saint Martin le Vinoux, FR;
Christophe Durand, Grenoble, FR;
SCHNEIDER ELECTRIC INDUSTRIES SAS, Rueil Malmaison, FR;
Abstract
A control method brakes an electric motor connected to a voltage source. The method involves, in each cycle, the supply of current to the motor, with a delay t, at an angle α. The method includes a sequence such that, for every n cycle, the following steps are executed: a) determining the value of a variation in the resistance of the motor during the preceding n cycles of the voltage, b) comparing the value of the variation in resistance with a threshold resistance value R, c) increasing in the delay tif the value of the variation in resistance is lower than the threshold resistance value. The increase in the delay tis executed in accordance with a gamma command, where the angle α lies between 50° and 80°.