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:
Apr. 04, 2006
Filed:
Nov. 12, 2003
Gui-jia Su, Knoxville, TN (US);
John S. Hsu, Oak Ridge, TN (US);
Gui-Jia Su, Knoxville, TN (US);
John S. Hsu, Oak Ridge, TN (US);
UT-Battelle LLC, Oak Ridge, TN (US);
Abstract
An electric machine drive () has a plurality of inverters () for controlling respective electric machines (), which may include a three-phase main traction machine () and two-phase accessory machines () in a hybrid or electric vehicle. The drive () has a common control section () for controlling the plurality of inverters () with only one microelectronic processor () for controlling the plurality of inverters (), only one gate driver circuit () for controlling conduction of semiconductor switches (S–S) in the plurality of inverters (), and also includes a common dc bus (), a common dc bus filtering capacitor (C) and a common dc bus voltage sensor (). The electric machines () may be synchronous machines, induction machines, or PM machines and may be operated in a motoring mode or a generating mode.