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. 19, 2013
Filed:
Jul. 30, 2010
Tomoharu Hozumi, Saitama-ken, JP;
Hiroshi Yatani, Saitama-ken, JP;
Takeshi Aoki, Saitama-ken, JP;
Atsushi Mitsui, Saitama-ken, JP;
Masaaki Nagashima, Saitama-ken, JP;
Kazuhiko Imamura, Saitama-ken, JP;
Tomoharu Hozumi, Saitama-ken, JP;
Hiroshi Yatani, Saitama-ken, JP;
Takeshi Aoki, Saitama-ken, JP;
Atsushi Mitsui, Saitama-ken, JP;
Masaaki Nagashima, Saitama-ken, JP;
Kazuhiko Imamura, Saitama-ken, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
To provide a stop control system for an internal combustion engine, which is capable of accurately stopping a piston at a predetermined position while compensating for variation in the stop characteristic of the piston and aging thereof. The stop control systemfor the engineaccording the present invention controls a throttle valvetoward an open side when an engine speed NE becomes lower than a stop control start rotational speed NEIGOFTH after the engineis stopped (step), whereby a final compression stroke rotational speed NEPRSFTGT is controlled to a predetermined reference value NENPFLMTO, to thereby control the stop position of the pistonto a predetermined position. Further, the correlation between the stop control start rotational speed NEIGOFTH and the final compression stroke rotational speed NEPRSFTGT is determined (step, FIG.), and based on the determined correlation, a target stop control start rotational speed NEICOFREFX is calculate and learned (step), for use in the stop control.