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:
Feb. 19, 2008
Filed:
Jul. 16, 2004
Gregory I. Rozman, Rockford, IL (US);
Kenneth Marks, Southwick, MA (US);
James R. Gustafson, Granby, MA (US);
Douglas Parsons, Canton, CT (US);
Gregory I. Rozman, Rockford, IL (US);
Kenneth Marks, Southwick, MA (US);
James R. Gustafson, Granby, MA (US);
Douglas Parsons, Canton, CT (US);
Hamilton Sundstrand Corporation, Windsor Locks, CT (US);
Abstract
An electric start system () includes a controller () that controls operation of a motor () used to start a device such as a gas turbine engine (). In one example, the controller () determines when an acceleration rate of the motor () is outside of a desired range and dynamically controls the acceleration rate. In another example, the controller () determines when the motor () is disengaged from the engine () and controls a torque reference value to facilitate smoother reengagement. In another example, the controller () provides an initial starting torque value that allows for soft starting capabilities of the motor ().