System and method for coping with malfunction of ethanol sensor of flex fuel vehicle
US11035302B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2018 |
| Grant date | Jun 15, 2021 |
| Priority date | — |
| Expiry date | Feb 26, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a system for coping with a malfunction of an ethanol sensor of a FFV. The present invention provides a system for coping with a malfunction of an ethanol sensor of a FFV, the system including: a driving condition detector configured to determine whether a driving condition of the FFV is satisfied; an air-fuel ratio control condition detector configured to determine whether an air-fuel ratio control condition is satisfied; a timer unit configured to calculate a timer value by measuring time when an ethanol content value measured in the ethanol sensor is constant and when the driving condition and the air-fuel ratio control condition are satisfied; and a controller configured to synchronize an ethanol-content learned value with the ethanol content value measured in the ethanol sensor when it is determined that the timer value calculated in the timer unit is higher than a preset critical value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.