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:
Apr. 23, 2019
Filed:
Sep. 29, 2015
Applicant:
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Inventors:
Takuya Matsumoto, Miyoshi, JP;
Akihiro Katayama, Toyota, JP;
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 41/00 (2006.01); F02D 41/18 (2006.01); F02D 41/22 (2006.01); F02M 26/04 (2016.01); F02B 37/18 (2006.01);
U.S. Cl.
CPC ...
F02D 41/0007 (2013.01); F02B 37/18 (2013.01); F02D 41/18 (2013.01); F02D 41/221 (2013.01); F02M 26/04 (2016.02); F02D 2041/228 (2013.01); F02D 2200/0406 (2013.01); Y02T 10/144 (2013.01); Y02T 10/40 (2013.01);
Abstract
A supercharging system includes a waste gate valve and an ECU. The ECU is configured to: calculate a first parameter and a second parameter, each of which has a positive correlation with an intake air amount; obtain a first difference by subtracting a first boost pressure from a second boost pressure; obtain a second difference by subtracting the first parameter from the second parameter; obtain a quotient by dividing the first difference by the second difference; and determine that a malfunction occurs in the waste gate valve when the quotient is larger than a threshold value.