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:
Aug. 10, 2021
Filed:
Jun. 14, 2018
Meidensha Corporation, Tokyo, JP;
Takao Akiyama, Tokyo, JP;
MEIDENSHA CORPORATION, Tokyo, JP;
Abstract
The mechanical characteristic estimating method is a method for estimating a value of a mechanical characteristic parameter of a test piece W provided with a first shaft S, and a second shaft Sand a third shaft Swhich are connected to the first shaft S. The mechanical characteristic estimating method includes: a first measuring step of measuring a resonant frequency ωL of the test piece in a state in which a gear ratio of the transmission TMand the differential gear TMis set to a first gear ratio gL; a second measuring step of measuring the resonant frequency ωH of the test piece in a state in which the gear ratio is set to a second gear ratio gH; and an estimating step of calculating the resonant frequencies ωL and ωH, the gear ratios gL and gH, and an estimated value of a spring stiffness.