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:
Jan. 16, 2018
Filed:
Aug. 23, 2012
Applicant:
Masanori Saeki, Toyota, JP;
Inventor:
Masanori Saeki, Toyota, JP;
Assignee:
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02B 37/18 (2006.01); F02D 41/00 (2006.01); F02D 41/22 (2006.01); F02D 41/24 (2006.01);
U.S. Cl.
CPC ...
F02B 37/183 (2013.01); F02D 41/0007 (2013.01); F02B 37/18 (2013.01); F02D 41/221 (2013.01); F02D 41/2464 (2013.01); Y02T 10/144 (2013.01);
Abstract
A wastegate valve is arranged in a communication passage that bypasses the exhaust turbine of a turbocharger arranged in the exhaust passage of an internal combustion engine. When the opening degree of the wastegate valve is controlled to the fully closed opening degree, a determination value is calculated based on the operation state of the internal combustion engine, and the turbo rotation speed is detected. When the turbo rotation speed is less than the determination value, a drive force is increased in the direction for closing the wastegate valve.