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:
Oct. 12, 2010
Filed:
Jan. 03, 2008
Applicant:
Ronald Paul Russ, Farmington Hills, MI (US);
Inventor:
Ronald Paul Russ, Farmington Hills, MI (US);
Assignee:
Visteon Global Technologies, Inc., Van Buren Township, MI (US);
Primary Examiner:
Int. Cl.
CPC ...
G05B 19/40 (2006.01);
U.S. Cl.
CPC ...
Abstract
A detector device and a method for detecting a stall condition in a stepper motor, wherein the accumulated value of the back EMF is compared to a stall threshold when the stepper motor has exceeded a pre-determined rotational velocity threshold, the accumulated value of the back EMF representing a condition of the stepper motor, specifically a failure of the accumulated back EMF value to exceed the stall threshold indicating a stall condition of the stepper motor.