Exhaust and component temperature estimation systems and methods
US8474245B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 28, 2010 |
| Grant date | Jul 2, 2013 |
| Priority date | — |
| Expiry date | Dec 1, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An exhaust control system comprises a nominal specific heat module, a correction module, a specific heat determination module, and a convective loss estimation module. The nominal specific heat module determines a nominal specific heat of exhaust input to a component of an exhaust system based on a temperature of the exhaust input to the component and based on a predetermined oxygen content. The correction module determines a specific heat correction based on an oxygen content measured by a sensor. The specific heat determination module determines a specific heat of the exhaust based on the nominal specific heat and the specific heat correction. The convection loss estimation module estimates a convective energy loss rate associated with the component based on the specific heat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.