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:
Aug. 02, 2022
Filed:
Apr. 01, 2020
Applicant:
Subaru Corporation, Tokyo, JP;
Inventors:
Assignee:
SUBARU CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02N 19/00 (2010.01); F02N 11/08 (2006.01); F02B 75/18 (2006.01); F02D 13/00 (2006.01); F02D 41/06 (2006.01);
U.S. Cl.
CPC ...
F02N 19/005 (2013.01); F02B 75/18 (2013.01); F02D 13/00 (2013.01); F02D 41/062 (2013.01); F02N 11/0862 (2013.01); F02N 2019/007 (2013.01); F02N 2019/008 (2013.01); F02N 2200/021 (2013.01); F02N 2200/045 (2013.01); F02N 2200/06 (2013.01);
Abstract
An engine driving apparatus includes an engine, a starter motor, and a starter motor controller. The engine includes a plurality of cylinders. When any one of the plurality of cylinders enters a compression stroke, another one of the cylinders enters an expansion stroke. The starter motor is coupled to a crankshaft of the engine. The starter motor controller is configured to control the starter motor. Before restarting the engine, the starter motor controller performs pre-restart control for adding torque to the crankshaft by using the starter motor to open an exhaust valve of the cylinder in the expansion stroke.