Invention Grant
US07779680B2 Estimation of engine-out NOx for real time input to exhaust aftertreatment controller
有权
对排气后处理控制器的实时输入的发动机NOx的估计
- Patent Title: Estimation of engine-out NOx for real time input to exhaust aftertreatment controller
- Patent Title (中): 对排气后处理控制器的实时输入的发动机NOx的估计
-
Application No.: US12119218Application Date: 2008-05-12
-
Publication No.: US07779680B2Publication Date: 2010-08-24
- Inventor: Shizuo Sasaki , Jayant V. Sarlashkar , Gary D. Neely
- Applicant: Shizuo Sasaki , Jayant V. Sarlashkar , Gary D. Neely
- Applicant Address: US TX San Antonio
- Assignee: Southwest Research Institute
- Current Assignee: Southwest Research Institute
- Current Assignee Address: US TX San Antonio
- Agency: Baker Botts LLP
- Main IPC: G01M15/10
- IPC: G01M15/10
Abstract:
A method and system for estimating engine-out NOx from a diesel engine. The estimation is calculated from a mathematical model that expresses engine-out NOx as functions of cylinder pressure, intake oxygen, and effective temperature, respectively. Input data for each of these functions may be obtained from fuel quantity data and from measured data, the latter including intake pressure, cylinder pressure, intake oxygen concentration, coolant temperature, and intake manifold temperature.
Public/Granted literature
- US20090277259A1 ESTIMATION OF ENGINE-OUT NOx FOR REAL TIME INPUT TO EXHAUST AFTERTREATMENT CONTROLLER Public/Granted day:2009-11-12
Information query
