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. 09, 2009
Filed:
Feb. 05, 2004
Pierre Barthelet, Thaon-les-Vosges, FR;
Nicolas Devulder, Thaon-les-Vosges, FR;
Chris Greentree, Redondo Beach, CA (US);
Cedric Lorant, Thaon-les-Vosges, FR;
Stanislaus Pouget, Thaon-les-Vosges, FR;
Kevin Stalsberg, St. Paul, MN (US);
Alain Wesquet, Thaon-les-Vosges, FR;
Pierre Barthelet, Thaon-les-Vosges, FR;
Nicolas Devulder, Thaon-les-Vosges, FR;
Chris Greentree, Redondo Beach, CA (US);
Cedric Lorant, Thaon-les-Vosges, FR;
Stanislaus Pouget, Thaon-les-Vosges, FR;
Kevin Stalsberg, St. Paul, MN (US);
Alain Wesquet, Thaon-les-Vosges, FR;
Honeywell International Inc., Morristown, NJ (US);
Abstract
The invention proposes a system for driving a compressor, comprising an induction motor () for driving the compressor (), said induction motor including a squirrel cage rotor, and a controller () for controlling the induction motor, said controller comprising a memory for storing drive patterns for driving the induction motor, a first frequency generation means for generating a field frequency based on a field command and/or a second field generation means for generating a voltage frequency based on a voltage command, wherein a drive pattern in extracted from the memory based on the generated frequency or frequencies. Alternatively, the invention proposes a system for driving a compressor, comprising an induction motor () for driving the compressor (), said induction motor including a squirrel cage rotor, and a controller () for controlling the induction motor, wherein the controller is adapted to distinguish between a steady state and a transient state of the induction motor.