公开(公告)号：US20220406102A1

公开(公告)日：2022-12-22

申请号：US17894749

申请日：2022-08-24

Applicant: DENSO CORPORATION

Inventor： Yuuki TSUCHIYA ,  Masanori KUROSAWA ,  Kou TANAKA ,  Kazuhiro NISHIGAKI

IPC: G07C5/08 ,  G01M15/12

Abstract: A knocking determination device detects a vibration generated in an internal combustion engine during a predetermined period in each combustion cycle of the internal combustion engine. The knocking determination device performs a knocking determination of a presence or absence of a knock based on a vibration waveform in a predetermined frequency band component of the vibration detected.

公开(公告)号：US20190242323A1

公开(公告)日：2019-08-08

申请号：US16388960

申请日：2019-04-19

Applicant: DENSO CORPORATION

Inventor： Kazuhiro NISHIGAKI

IPC: F02D41/20 ,  F02M51/06 ,  F02M61/04

CPC classification number: F02D41/20 ,  F02M51/00 ,  F02M51/06 ,  F02M51/0603 ,  F02M51/061 ,  F02M61/04

Abstract: A fuel injection control device is for a fuel injection system including a fuel injection valve for injecting a fuel in an internal combustion engine. The fuel injection system is configured to perform multiple-stage injection for injecting fuel multiple times in one combustion cycle. The fuel injection control device includes an information acquisition unit to acquire a parameter, which indicates an influence of a pre-stage injection on a post-stage injection, in the pre-stage injection and the post-stage injection subsequent to the pre-stage injection in the multi-stage injection. The fuel injection control device further includes a correction unit to correct a mode of the post-stage injection based on the parameter.