Humidity determination and compensation systems and methods using an intake oxygen sensor
US10066564B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2012 |
| Grant date | Sep 4, 2018 |
| Priority date | — |
| Expiry date | Jan 27, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2200/0418
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An engine control system for a vehicle includes an oxygen mass flow rate module, an oxygen per cylinder module, and a fuel control module. The oxygen mass flow rate module generates a mass flow rate of oxygen flowing into an engine based on a mass air flow rate (MAF) into the engine and a percentage of oxygen by volume measured using an intake oxygen (IO) sensor in an intake system. The oxygen per cylinder module generates a mass of oxygen for a combustion event of a cylinder of the engine based on the mass flow rate of oxygen flowing into the engine. The fuel control module controls fueling to the cylinder for the combustion event based on the mass of oxygen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.