Method and system for transient airflow compensation in an internal combustion engine
US7380447B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2006 |
| Grant date | Jun 3, 2008 |
| Priority date | — |
| Expiry date | Jun 10, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M15/09
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for determining airflow to a cylinder of an internal combustion engine, such airflow passing to the cylinder through an intake manifold. The method includes providing a model of the intake manifold, such model providing a relationship between expected output airflow from the intake manifold in response to airflow into the intake manifold; determining from the model the expected output airflow from the intake manifold from a previous commanded airflow into the intake manifold; determining a compensation airflow required for the input airflow to the intake manifold to drive the expected output from the intake manifold towards the desired cylinder airflow; and providing such compensation airflow to the intake manifold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.