公开(公告)号：US10900393B2

公开(公告)日：2021-01-26

申请号：US16239608

申请日：2019-01-04

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA ,  TAIHO KOGYO CO., Ltd.

发明人： Yusuke Morita ,  Motoichi Murakami ,  Takeshi Fukui ,  Yuichiro Kajiki ,  Katsuhiro Ashihara ,  Alan Hase ,  Takashi Izumi

IPC分类号： F01M1/16 ,  F01M9/10 ,  F01M1/06 ,  G01M15/00 ,  G01M13/045 ,  G01M15/09 ,  G01M15/12 ,  F01M1/02 ,  F01M11/02

摘要： A control device controls an internal combustion engine including: an elastic wave sensor arranged and configured to output a signal responsive to the strength of an acoustic emission wave produced at a sliding portion; and a variable oil pump. The control device is configured to execute an oil pressure control such that the oil pressure approaches a target oil pressure according to an engine operating condition. This oil pressure control includes a first pressure-increase processing executed where an AE correlation value correlated with the strength or occurrence frequency of the acoustic emission wave detected by the elastic wave sensor is greater than a first threshold value. The first pressure-increase processing increases the target oil pressure associated with a first engine operating condition present when the AE correlation value becomes greater than the first threshold value, as compared to when the AE correlation value is not greater than that.