Method and apparatus for determining the gas temperature in an internal combustion engine
US5941927A · kind A · utility
28Cited by
10References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 14, 1998 |
| Grant date | Aug 24, 1999 |
| Priority date | — |
| Expiry date | Sep 14, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D35/026
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and an apparatus for determining the temperature of a gas charge in a cylinder of an internal combustion engine increase the accuracy with which the temperature of the gas charge is determined. The gas charge includes a residual gas portion and a fresh gas portion. The temperature of the gas charge is determined by ascertaining the temperature of the fresh gas portion, the proportion of the fresh gas portion in the gas charge, the temperature of the residual gas portion, and the proportion of the residual gas portion in the gas charge. The temperature of the gas charge is calculated based on these ascertained quantities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.