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:
Nov. 21, 2017
Filed:
May. 07, 2014
Ryo Yoshioka, Miyoshi, JP;
Takanori Nakada, Toyota, JP;
Tadashi Akiyama, Okazaki, JP;
Kashirou Fukami, Toyota, JP;
Yuichiro Hirata, Miyoshi, JP;
Ryo Yoshioka, Miyoshi, JP;
Takanori Nakada, Toyota, JP;
Tadashi Akiyama, Okazaki, JP;
Kashirou Fukami, Toyota, JP;
Yuichiro Hirata, Miyoshi, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, JP;
Abstract
In a motor lock determination device (), a lock determination on an electric motor () is performed such that: a first detection value (PI), which is a detection value (P) of a refrigerant pressure sensor () during a stop of an electric fan (), is detected, and a second detection value (P), which is a detection value (P) of the refrigerant pressure sensor () after the electric fan () is driven for a first predetermined time (Δ), is detected; when the second detection value (P) is equal to the first detection value (PI) or more than the first detection value (PI), it is determined that a motor lock occurs; and when the second detection value (P) is less than the first detection value (PI), it is determined that no motor lock occurs.