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:
Jun. 05, 2012
Filed:
May. 28, 2009
Gabriel Gallegos-lopez, Torrance, CA (US);
James M. Nagashima, Cerritos, CA (US);
Milun Perisic, Torrance, CA (US);
Silva Hiti, Redondo Beach, CA (US);
Gabriel Gallegos-Lopez, Torrance, CA (US);
James M. Nagashima, Cerritos, CA (US);
Milun Perisic, Torrance, CA (US);
Silva Hiti, Redondo Beach, CA (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A system is provided for controlling two alternating current (AC) machines via a five-phase PWM inverter module. The system comprises a first control loop, a second control loop, and a current command adjustment module. The current command adjustment module operates in conjunction with the first control loop and the second control loop to continuously adjust current command signals that control the first AC machine and the second AC machine such that they share the input voltage available to them without compromising the target mechanical output power of either machine. This way, even when the phase voltage available to either one of the machines decreases, that machine outputs its target mechanical output power.