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:
Mar. 25, 2003
Filed:
Apr. 17, 2001
Craig Rae Fowler, Caen, FR;
Dennis A. Kramer, Troy, MI (US);
Jerome Quere, Bieville-Beuville, FR;
Enrico Fin, Lake Orion, MI (US);
George Chene, Sterling Heights, MI (US);
Stephen Chiu, Thousand Oaks, CA (US);
Pascal Garrido, Kilworthy, CA;
Ira B. Goldberg, Thousand Oaks, CA (US);
Charles Hopson, Lebanon, TN (US);
David M. Barry, Stratford Upon Avon, GB;
Dan Rogovin, Newbury Park, CA (US);
Meritor Light Vehicle Technology, LLC, Troy, MI (US);
Abstract
A plurality of motors for use in driving accessories on a vehicle, are each powered by three-phase current. A single controller controls the supply three-phase current to the plurality of motors. In another aspect of the invention, pseudothree-phase current is created from a direct current voltage source. A chopping circuit chops the voltage into a plurality of pulses, and a phase shift circuit then creates phase-shifted power signals from those pulses. The present invention thus enables the use of three-phase alternating current motors on a vehicle to drive accessories. This reduces the cost and size of the required motors.