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:
Mar. 18, 2014
Filed:
Jul. 29, 2009
Yasuhiro Nakai, Kariya, JP;
Masatomo Yoshihara, Toyota, JP;
Kouji Okamura, Toyota, JP;
Denso Corporation, Kariya, JP;
Abstract
Target rotation speed at a reference point set at TDC slightly preceding a target stop position of engine rotation is set. A target trajectory of an engine rotation behavior extending since an engine rotation stop behavior starts until the target rotation speed at the reference point is reached is calculated based on the target rotation speed at the reference point and an engine friction. Torque of an alternator is controlled to conform the engine rotation behavior to the target trajectory during the engine rotation stop behavior. Generation of the torque of the alternator stops at a position preceding the reference point by a predetermined crank angle. Therefore, the torque of the alternator is controlled such that an energy deviation between the target trajectory and the engine rotation behavior becomes zero at the position preceding the reference point by the predetermined crank angle.