System for controlling regeneration of lean NOx traps
US7305977B1 · kind B1 · utility
4Cited by
3References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 23, 2007 |
| Grant date | Dec 11, 2007 |
| Priority date | — |
| Expiry date | Jan 23, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A control system and method for controlling torque output of an engine include an air control module that receives an actual airflow and a desired airflow and outputs an adjusted actual airflow based on the actual airflow and the desired airflow. A fuel control module receives the adjusted actual airflow and controls fuel output based on the adjusted actual airflow, a ratio (λ) of an operating air-fuel mixture to an ideal air-fuel mixture, and an operating curve (λtraj).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.