公开(公告)号：US09664093B2

公开(公告)日：2017-05-30

申请号：US14670936

申请日：2015-03-27

Applicant: Caterpillar Inc.

Inventor： Brandon Abel ,  David Pierpont ,  Adwait Joshi

IPC: G01M15/10 ,  F01N11/00 ,  F01N9/00

CPC classification number: F01N11/005 ,  F01N9/005 ,  F01N2590/08 ,  F01N2900/0404 ,  F01N2900/1404 ,  F01N2900/1622 ,  Y02T10/47

Abstract: A method for calculating exhaust gas temperature indirectly at points in or around an engine exhaust after treatment system for use in determining an amount of unburned hydrocarbons resident therein at a given point in time.

公开(公告)号：US20160281574A1

公开(公告)日：2016-09-29

申请号：US14670936

申请日：2015-03-27

Applicant: Caterpillar Inc.

Inventor： Brandon Abel ,  David Pierpont ,  Adwait Joshi

IPC: F01N11/00 ,  G01M15/10 ,  F01N9/00

CPC classification number: F01N11/005 ,  F01N9/005 ,  F01N2590/08 ,  F01N2900/0404 ,  F01N2900/1404 ,  F01N2900/1622 ,  Y02T10/47

Abstract: A method for calculating exhaust gas temperature indirectly at points in or around an engine exhaust after treatment system for use in determining an amount of unburned hydrocarbons resident therein at a given point in time.

Abstract translation: 一种用于在给定时间点确定其中存在的未燃碳氢化合物的量的处理系统之后的发动机排气中的周围或周围的间接计算废气温度的方法。

公开(公告)号：US20170123392A1

公开(公告)日：2017-05-04

申请号：US14925166

申请日：2015-10-28

Applicant: Caterpillar Inc.

Inventor： Keith Troisi ,  David Pierpont ,  Raghuvansh Ramaswamy

IPC: G05B17/02

CPC classification number: G01M15/08 ,  G01M15/042

Abstract: A system and method configured to model an engine cylinder system is disclosed. The engine cylinder system having a plurality of components including a cylinder and a piston slideably positioned within the cylinder. The method including operating the piston to move within the cylinder, sensing a first at least one engine operating parameter during operation of the piston, and calculating a second at least one engine operating parameter based on the first at least one engine operating parameter. Based on the first at least one engine operating parameter and the second at least one engine operating parameter, a heat flux for at least one of the plurality of components and an operating cylinder pressure are calculated.