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:
Jun. 21, 2016
Filed:
May. 30, 2012
Applicants:
Ippei Wakaya, Toyota, JP;
Yuji Miyanoo, Seto, JP;
Yoshiyuki Shogenji, Toyota, JP;
Hibiki Ueura, Toyota, JP;
Inventors:
Ippei Wakaya, Toyota, JP;
Yuji Miyanoo, Seto, JP;
Yoshiyuki Shogenji, Toyota, JP;
Hibiki Ueura, Toyota, JP;
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi-ken, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 41/04 (2006.01); F02D 13/02 (2006.01); F02D 9/02 (2006.01);
U.S. Cl.
CPC ...
F02D 13/0238 (2013.01); F02D 9/02 (2013.01); F02D 41/04 (2013.01); Y02T 10/18 (2013.01);
Abstract
When a working angle of an intake valve is increased in accordance with a deficiency in a working fluid pressure of a VVT mechanism, an electronic control unit corrects an opening degree of a throttle valve so as to increase an intake air amount, and thereby restraining the intake air amount from decreasing in accordance with the increase in the working angle with a valve timing of the intake valve retarded, and hence suppressing a fall in an engine rotational speed.