公开(公告)号：US10240573B2

公开(公告)日：2019-03-26

申请号：US15252322

申请日：2016-08-31

Applicant: GM Global Technology Operations LLC

Inventor： Hejie Lin ,  Jun-Mo Kang ,  Jeffrey A. Morgan

IPC: F02P5/153 ,  F02D35/02 ,  F02D17/02 ,  F02D41/00

Abstract: A system according to the present disclosure includes a first crank angle module, a second crank angle module, and a spark control module. The first crank angle module determines a first crank angle of an engine at which a predetermined percentage of fuel in a first cylinder of the engine is combusted based on pressure in the first cylinder. The second crank angle module determines a relationship between the first crank angle and a second crank angle of the engine at which the predetermined percentage of fuel in a second cylinder of the engine is combusted based on pressure in the first cylinder and pressure in the second cylinder. The spark control module adjusts spark timing of the first cylinder based on the first crank angle, and adjusts spark timing of the second cylinder based on the relationship between the first and second crank angles.

公开(公告)号：US20190078521A1

公开(公告)日：2019-03-14

申请号：US15699135

申请日：2017-09-08

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jun-mo Kang ,  Hejie Lin ,  Jeffrey A. Morgan

IPC: F02D35/02 ,  F02D41/00 ,  F02D41/40 ,  F02P5/153 ,  G01M15/08 ,  G01M15/04

Abstract: A method for controlling an internal combustion engine that includes sensing a characteristic of combustion in a cylinder of the engine, generating a combustion characteristic signal from the sensed characteristic, performing a principal component analysis on the combustion characteristic signal and a predetermined combustion characteristic trace to determine first mode coefficients for the combustion characteristic signal and the predetermined combustion characteristic trace, determining a difference between the first mode coefficient of the combustion characteristic signal and the first mode coefficient of the predetermined combustion characteristic trace, and controlling the internal combustion engine based upon the difference.

公开(公告)号：US10215112B1

公开(公告)日：2019-02-26

申请号：US15699135

申请日：2017-09-08

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jun-mo Kang ,  Hejie Lin ,  Jeffrey A. Morgan

IPC: F02D35/00 ,  F02D35/02 ,  F02D41/00 ,  G01M15/04 ,  F02P5/153 ,  G01M15/08 ,  F02D41/40

Abstract: A method for controlling an internal combustion engine that includes sensing a characteristic of combustion in a cylinder of the engine, generating a combustion characteristic signal from the sensed characteristic, performing a principal component analysis on the combustion characteristic signal and a predetermined combustion characteristic trace to determine first mode coefficients for the combustion characteristic signal and the predetermined combustion characteristic trace, determining a difference between the first mode coefficient of the combustion characteristic signal and the first mode coefficient of the predetermined combustion characteristic trace, and controlling the internal combustion engine based upon the difference.