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. 01, 2007
Filed:
Jun. 05, 2006
Jie Chang, Newbury Park, CA (US);
Kirby Keller, Chesterfield, MO (US);
Anhua Wang, Thousand Oaks, CA (US);
Jiajia Zhang, Los Angeles, CA (US);
Jie Chang, Newbury Park, CA (US);
Kirby Keller, Chesterfield, MO (US);
Anhua Wang, Thousand Oaks, CA (US);
Jiajia Zhang, Los Angeles, CA (US);
The Boeing Company, Chicago, IL (US);
Abstract
The present invention provides a diagnostics methodology and embedded electronic system that allows optimized low-frequency data sampling for EMA motoring subsystems in an operating vehicle. Each of the EMA motoring subsystems includes: an EMA; at least one motor for driving the EMA; and power controls for operating the motor, wherein the power controls includes a DSP controller for sampling and processing data at low-frequency sampling rates. The diagnostic methodology includes a method that has the steps of: determining an operational mode of the EMA motoring subsystem; selecting a sampling rate optimized for the determined operational mode; acquiring and processing data at the selected sampling rate; and analyzing the processed data to identify and classify a fault of the EMA motoring subsystem.