Method and apparatus for regenerating a lean NOx trap in a turbocharged internal combustion engine
US10018134B2 · kind B2 · utility
0Cited by
4References
13Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 11, 2016 |
| Grant date | Jul 10, 2018 |
| Priority date | — |
| Expiry date | Mar 31, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for regenerating a Lean NOx Trap in an internal combustion engine is disclosed. The internal combustion engine includes a Lean NOx Trap, a turbocharger having a turbine. An electronic control unit is configured to execute a regeneration event of the Lean NOx Trap, and regulate a position of an actuator affecting a rotating speed of the turbine using a closed-loop control strategy of an air pressure into an intake duct downstream of a compressor of the turbocharger and upstream of a throttle valve during the execution of the regeneration event.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.