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:
Sep. 23, 2015
Applicant:
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Inventors:
Shunichi Tsutsuji, Okazaki, JP;
Koji Honda, Toyota, JP;
Makiko Nakayama, Toyota, JP;
Kinji Morihiro, Susono, JP;
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 41/22 (2006.01); G01L 27/00 (2006.01); F02D 41/40 (2006.01);
U.S. Cl.
CPC ...
F02D 41/22 (2013.01); G01L 27/007 (2013.01); F02D 41/406 (2013.01); F02D 2041/223 (2013.01); F02D 2041/224 (2013.01); Y02T 10/40 (2013.01);
Abstract
The fuel pressure sensor abnormality diagnosis apparatus diagnoses that a fuel pressure sensor is abnormal in the case where, because a state where a detected value of the fuel pressure sensor is less than a target value occurs, a fuel discharge amount of a fuel pump is increased, and as a result, the fuel discharge amount reaches its maximum amount, and even if a predetermined period has elapsed since the fuel discharge amount reaches its maximum amount, the detected value is less than the target value.