Method of preventing damage to GPF in vehicle adopted to CDA
US8762028B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2011 |
| Grant date | Jun 24, 2014 |
| Priority date | — |
| Expiry date | Sep 3, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2200/0812
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method of preventing damage to a Gasoline Particulate Filter (GPF) of a vehicle adapted to Cylinder De-activation (CDA) may include monitoring GPF pressure difference that measures a pressure difference of the GPF and determines an accumulation amount of soot in the GPF in accordance with the measured pressure difference of GPF; comparing pressure difference that compares the measured pressure difference of the GPF with a predetermined reproduction pressure difference; calculating GPF temperature that calculates a temperature in the GPF in accordance with each one of CDA modes, based on the accumulation amount of soot and an average oxygen concentration of an exhaust gas for the each one of the CDA modes; and setting CDA mode that determines a number of cylinders available for an CDA operation based on the calculated temperature and a predetermined temperature established for preventing the GPF from a damage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.