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:
Oct. 08, 2024
Filed:
Sep. 17, 2021
Applicant:
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Inventor:
Shigeru Kimura, Toyota, JP;
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G07C 5/00 (2006.01); G07C 5/08 (2006.01);
U.S. Cl.
CPC ...
G07C 5/006 (2013.01); G07C 5/0808 (2013.01); G07C 5/085 (2013.01);
Abstract
An interference margin between a stator and a rotor is measured after a rotary electric machine is manufactured, and the measured value is stored in a memory of a life predicting device as an allowable limit value. The life predicting device calculates a wear amount of a bearing portion of the rotary electric machine from an operation state amount of the rotary electric machine, and determines whether or not the rotary electric machine reaches an end of a life and maintenance is needed based on the calculated value and the allowable limit value stored in the memory.