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:
May. 16, 2006
Filed:
Feb. 17, 2004
Harold L. Castle, Dexter, MI (US);
Dequan Yu, Ann Arbor, MI (US);
Stephen T. Kempfer, Canton, MI (US);
Norman N. Krieger, Milford, MI (US);
Paul E. Fisher, Dexter, MI (US);
Sheven Sharp, Troy, MI (US);
James L. Thompson, Ypsilanti, MI (US);
Harold L. Castle, Dexter, MI (US);
DeQuan Yu, Ann Arbor, MI (US);
Stephen T. Kempfer, Canton, MI (US);
Norman N. Krieger, Milford, MI (US);
Paul E. Fisher, Dexter, MI (US);
Sheven Sharp, Troy, MI (US);
James L. Thompson, Ypsilanti, MI (US);
Ford Motor Company, Dearborn, MI (US);
Abstract
The present invention provides a system for controlling the speed of a motor by altering the magnetic field of the motor. The system includes field modification module, and a motor having field windings and a rotor. The field windings are configured to receive a driving signal that generates a magnetic field causing a rotation of the rotor. The field modification module is proximate the motor and alters the magnetic field in response to an input signal thereby controlling the speed and torque of the rotor.