Engine system and signal processing method thereof
US8332128B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Jun 30, 2011 |
| Grant date | Dec 11, 2012 |
| Priority date | — |
| Expiry date | Jun 30, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2200/0812
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An engine system may include an engine generating torque through a crankshaft, an exhaust line that exhaust gas of the engine flows, a diesel particulate filter disposed on the exhaust line to trap particulate matters of the exhaust gas, a first pressure difference sensor configured to detect a front/rear pressure difference of the diesel particulate filter, a temperature sensor configured to detect a temperature of exhaust gas flowing into the diesel particulate filter, and a control unit that detects signal form the temperature sensor and the first pressure difference sensor in a predetermined rotation cycle of the crankshaft, uses the detected signal to calculate a front/rear pressure difference of the diesel particulate filter, and calculates a temperature of exhaust gas flowing into the diesel particulate filter. A corresponding signal processing method is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.