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. 23, 2021
Filed:
Oct. 12, 2018
Deere & Company, Moline, IL (US);
Andy B. Appleton, Cedar Falls, IA (US);
Robert J. White, Waterloo, IA (US);
DEERE & COMPANY, Moline, IL (US);
Abstract
The system and method determines the torque applied to a rotating shaft by a load. A first sensor detects rotation of a first wheel and a second sensor detects rotation of a second wheel. A third sensor is proximate to the first sensor. A processor determines: 1) a magnitude of a phase angle (φ) based on the first and second sensors and having an unknown sign; 2) a magnitude of a phase angle (φ) based on the second and third sensors and having an unknown sign; and 3) a magnitude of a phase angle (φ) based on the first and third sensors and having a known sign. The processor determines a sign of the phase angle (φ) based on the values of the phase angles (φ) and (φ) and determines a torque value from the load applied to the shaft at least in part based on the magnitude and sign of the phase angle (φ).