This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
An Algorithm to Compensate for Air Charge Prediction Errors
Technical Paper
2000-01-0258
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
SAE 2000 World Congress
Language:
English
Abstract
Various methods are available to predict future cylinder air charge for improved air/fuel control. However, there can never be perfect prediction. This paper presents an algorithm to correct for imperfect cylinder charge prediction. This is done by expanding the air/fuel control boundary to include the catalyst, and correcting prediction errors as soon as possible using small corrective changes to later cylinder fuel inputs. The method was experimentally tested and showed improved air/fuel control as indicated by reduced variability of catalyst downstream air/fuel ratio. Additional vehicle testing showed potential to further reduce emissions.
Recommended Content
Authors
Citation
Kotwicki, A. and Russell, J., "An Algorithm to Compensate for Air Charge Prediction Errors," SAE Technical Paper 2000-01-0258, 2000, https://doi.org/10.4271/2000-01-0258.Also In
References
- Perry's Chemical Engineering Handbook McGraw Hill 6 1984
- Azzoni Piero Minelli Giorgio Moro Davide Ceccarani Massimo Rizzoni Giorgio Air-fuel ratio control for a high performance engine using throttle angle information SAE , (1999011169) 1999
- Benninger N. F. Plapp G. Requirements and performance of engine management systems under transient conditions SAE , ( 910083 ) 1991
- Kato S. Oba H. Apparatus for control and intake air amount prediction in an internal combustion engine U.S. Patent 1991
- Kotwicki Allan Russell John Pursifull Ross Lewis Don An air meter based cylinder air charge estimator SAE , (1999010856) 1999