Control system for determining biofuel content
US9644520B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2013 |
| Grant date | May 9, 2017 |
| Priority date | — |
| Expiry date | Feb 17, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A system includes an internal combustion engine having an air intake, a fuel inlet, and exhaust outlet. The system further includes a NOx sensor operably coupled to the exhaust outlet and structured to provide an exhaust O2 value, and a controller structured to functionally execute operations for determining a tank biofuel value. The controller includes an operation conditions module that interprets an intake O2 value, the exhaust O2 value, and a biofuel O2 correlation, an O2 fuel determination module that determines an O2 biofuel value in response to the intake O2 value, the exhaust O2 value, and the biofuel O2 correlation, and a fuel composition module that determines a tank biofuel value in response to the O2 biofuel value. The controller further includes a biofuel reporting module that provides the tank biofuel value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.