Measurement of engine cylinder induction air quantity
US6880523B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 15, 2003 |
| Grant date | Apr 19, 2005 |
| Priority date | — |
| Expiry date | Jan 15, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/62
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An engine cylinder induction air quantity measuring apparatus includes a controller to calculate an intake manifold inside air quantity of air in an intake manifold of the engine, from a sensed intake air quantity by performing a balance calculation to calculate a balance between an intake manifold inflow air quantity of air flowing into the intake manifold, and an intake manifold outflow air quantity of air flowing out of the intake manifold. In an engine stopping process to stop the engine, the controller controls a throttle opening of a throttle valve to a predetermined stop mode opening greater than an idling mode opening for an idle operation of the engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.