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. 25, 2014
Filed:
Dec. 23, 2011
Charles C. Frayman, Mundelein, IL (US);
Charles C. Frayman, Mundelein, IL (US);
Woodward MPC Inc., Skokie, IL (US);
Abstract
A control stick system for simulating a detent mechanism in an aircraft is provided. The detent mechanism is simulated by a motor operably coupled to a lever and configured to bias the lever such that the user experiences the feel of a traditional detent mechanism. A controller operates the motor that provides the simulated detent by receiving data from multiple sensors regarding the position and the speed of the lever and the position and the speed of a rotor assembly of the motor. Using the position and the speed measurements, the controller is able to detect when the lever is entering a specific zone of a simulated detent range. Depending on what zone the lever is in, within the simulated detent range, the controller is configured to provide a different drive current to the motor.