公开(公告)号：US10253745B2

公开(公告)日：2019-04-09

申请号：US15383866

申请日：2016-12-19

Applicant: Cummins Inc.

Inventor： Jie Duan ,  Richard A. Booth

IPC: F02D35/00 ,  F02P5/152 ,  F02P5/15 ,  F02D35/02 ,  F02D41/14

Abstract: Methods and systems for diagnosis and control of an internal combustion engine using vibration data obtained from a vibration sensor mounted on the engine includes filtering vibration data within a predetermined engine combustion time period, where the vibration data is indicative of a vibration of an internal combustion engine, determining a peak cylinder pressure (PCP) of a combustion cycle of the internal combustion engine based on the filtered vibration data, determining a location of peak cylinder pressure (LPP) of the combustion cycle of the internal combustion engine based on the filtered vibration data, where the PCP and the LPP are indicative of a performance characteristic of the combustion cycle, and modifying an ignition timing of the internal combustion engine based on the determined PCP and LPP.

公开(公告)号：US20170211538A1

公开(公告)日：2017-07-27

申请号：US15383866

申请日：2016-12-19

Applicant: Cummins Inc.

Inventor： Jie Duan ,  Richard A. Booth

IPC: F02P5/152 ,  F02D41/14 ,  F02D35/02

CPC classification number: F02P5/152 ,  F02D35/023 ,  F02D35/027 ,  F02D41/1498 ,  F02P5/15 ,  F02P5/153 ,  Y02T10/46

Abstract: Methods and systems for diagnosis and control of an internal combustion engine using vibration data obtained from a vibration sensor mounted on the engine includes filtering vibration data within a predetermined engine combustion time period, where the vibration data is indicative of a vibration of an internal combustion engine, determining a peak cylinder pressure (PCP) of a combustion cycle of the internal combustion engine based on the filtered vibration data, determining a location of peak cylinder pressure (LPP) of the combustion cycle of the internal combustion engine based on the filtered vibration data, where the PCP and the LPP are indicative of a performance characteristic of the combustion cycle, and modifying an ignition timing of the internal combustion engine based on the determined PCP and LPP.