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:
Sep. 15, 2015
Filed:
Dec. 27, 2011
Hideaki Takahashi, Yokohama, JP;
Hajime Yasuda, Fuchu, JP;
Kenichi Satou, Yokohama, JP;
Tohru Shibata, Isehara, JP;
Hiroyuki Itoyama, Yokohama, JP;
Hirotada Muraki, Kawasaki, JP;
Susumu Shimasaki, Ebina, JP;
Hideaki Takahashi, Yokohama, JP;
Hajime Yasuda, Fuchu, JP;
Kenichi Satou, Yokohama, JP;
Tohru Shibata, Isehara, JP;
Hiroyuki Itoyama, Yokohama, JP;
Hirotada Muraki, Kawasaki, JP;
Susumu Shimasaki, Ebina, JP;
NISSAN MOTOR CO., LTD., Yokohama-shi, JP;
Abstract
The internal combustion engine () has a throttle () for controlling an intake air amount and performs start-up through cranking. As the cranking is initiated, an atmospheric pressure is detected and an initial opening is set accordingly. The controller () controls the throttle () to the initial opening when the cranking is initiated, and controls the throttle to start to increase the throttle opening from the initial opening at a predetermined timing after the cranking initiation. By setting the initial opening based on one or both of the atmospheric pressure and the temperature at the time of cranking initiation, the intake negative pressure and the intake air amount are optimized.