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. 26, 2010
Filed:
Apr. 10, 2008
Andrew David Baglino, San Francisco, CA (US);
Troy Adam Nergaard, San Francisco, CA (US);
Heath Hofmann, State College, PA (US);
Andrew David Baglino, San Francisco, CA (US);
Troy Adam Nergaard, San Francisco, CA (US);
Heath Hofmann, State College, PA (US);
Tesla Motors, Inc., Palo Alto, CA (US);
Abstract
A voltage estimation system for motor control feedback is described. The system may include one or more control modules which may generate voltage commands. An overmodulation or 'clipping' module receiving a voltage command can generate a clipped voltage. Rather than measuring directly, a voltage estimator may estimate the clipped voltage based on the duty cycle command to the inverter. This estimated voltage may then be used by a flux estimator to estimate a flux value. Other embodiments are described and claimed.