| US 7,579,792 B2 | ||
| Hybrid motor boost system and methods | ||
| James M. Nagashima, Cerritos, Calif. (US); Brian A Welchko, Torrance, Calif. (US); and Peter J. Savagian, Bloomfield Hills, Mich. (US) | ||
| Assigned to GM Global Technology Operations, Inc., Detroit, Mich. (US) | ||
| Filed on Apr. 23, 2007, as Appl. No. 11/738,886. | ||
| Prior Publication US 2008/0258655 A1, Oct. 23, 2008 | ||
| Int. Cl. H02P 5/00 (2006.01) | ||
| U.S. Cl. 318—105 [318/126; 318/800; 318/801; 318/400.26; 363/40; 363/56.02; 363/71] | 20 Claims |
| 1. An electrical system comprising:
a power source;
a first electrical motor and a second electrical motor each having a plurality of windings, and each of the windings having
a first end and a second end;
a boost link switchably coupled between the first and second electrical motors and configured to store electrical energy;
an first inverter circuit comprising a first plurality of switches, wherein each of the first plurality of switches is configured
to switchably couple one of the first ends of the windings to the power source;
a second inverter circuit comprising a second plurality of switches, wherein each of the second plurality of switches is configured
to switchably couple one of the second ends of the windings to the boost link; and
a controller coupled to each of the first and second pluralities of switches and configured to activate each of the first
and second pluralities of switches to thereby allow the electrical energy to be placed on and retrieved from the boost link.
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