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. 08, 2015
Filed:
Aug. 08, 2013
Applicant:
General Electric Company, Schenectady, NY (US);
Inventor:
Jeffrey Louis Daigle, Erie, PA (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B60K 1/00 (2006.01); B61C 15/08 (2006.01); H02P 23/00 (2006.01); B61C 15/12 (2006.01); B60L 3/10 (2006.01); B60L 11/08 (2006.01); B60L 15/20 (2006.01);
U.S. Cl.
CPC ...
H02P 23/0063 (2013.01); B60L 3/102 (2013.01); B60L 3/104 (2013.01); B60L 11/08 (2013.01); B60L 15/2063 (2013.01); B61C 15/12 (2013.01); B60L 2200/26 (2013.01); B60L 2220/46 (2013.01); B60L 2240/12 (2013.01); B60L 2240/421 (2013.01); B60L 2240/423 (2013.01); B60L 2240/429 (2013.01); B60L 2240/461 (2013.01); B60L 2240/463 (2013.01); B60L 2240/465 (2013.01); B60L 2260/28 (2013.01); Y02T 10/642 (2013.01); Y02T 10/70 (2013.01); Y02T 10/7077 (2013.01); Y02T 10/7275 (2013.01); Y02T 30/10 (2013.01);
Abstract
A control method includes monitoring changes in torque produced by a traction motor when an excitation frequency of current supplied to the traction motor changes, determining if the torque produced by the traction motor decreases when the excitation frequency of the current supplied to the traction motor increases, and responsive to the torque produced by the traction motor decreasing when the excitation frequency increases, preventing the excitation frequency of the current supplied to the traction motor from increasing further.