Method and device for determining a charge air mass flow rate
US9989029B2 · kind B2 · utility
2Cited by
10References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 28, 2015 |
| Grant date | Jun 5, 2018 |
| Priority date | — |
| Expiry date | Oct 12, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method for determining charge air mass flow rate comprises a turbocharger speed sensor with a closed loop observer that is based on a modeled turbocharger revolution rate. An open loop charge air mass flow rate is determined in a characteristic field stored in an engine controller and is corrected by the scaled difference between the measured and modeled turbocharger revolution rates. The corrected closed loop charge air mass flow is fed back to model the subsequent turbocharger revolution rate and to update the open loop charge air mass flow rate in the characteristic field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.