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. 09, 2010
Filed:
Jan. 12, 2007
Ramakrishnan Raja, Saginaw, MI (US);
Mohammad S. Islam, Saginaw, MI (US);
Paul M. Fisher, Saginaw, MI (US);
Tomy Sebastian, Saginaw, MI (US);
Lucas W. Wendling, New Lothrop, MI (US);
Ramakrishnan Raja, Saginaw, MI (US);
Mohammad S. Islam, Saginaw, MI (US);
Paul M. Fisher, Saginaw, MI (US);
Tomy Sebastian, Saginaw, MI (US);
Lucas W. Wendling, New Lothrop, MI (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
A system and a method for adjusting a dead-time interval between de-activating a first transistor and activating a second transistor in a motor control circuit are provided. The method includes determining a plurality of commanded torque values associated with a motor based on a received signal over time. The method further includes setting the dead-time interval value equal to a first value when one commanded torque value of the plurality of commanded torque values is within a first torque range. The method further includes decreasing the dead-time interval value as other commanded torque values of the plurality of commanded torque values increase over time within a second torque range. The second torque range is greater than the first torque range. The dead-time interval value is indicative of a desired dead-time interval.