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An Algorithm to Compensate for Air Charge Prediction Errors Ford Motor Company
- Format:
- Book
- Conference/Event
- Author/Creator:
- Kotwicki, Allan J., author.
- Conference Name:
- SAE 2000 World Congress (2000-03-06 : Detroit, Michigan, United States)
- Language:
- English
- Physical Description:
- 1 online resource cm
- Place of Publication:
- Warrendale, PA SAE International 2000
- Summary:
- 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
- Notes:
- Vendor supplied data
- Publisher Number:
- 2000-01-0258
- Access Restriction:
- Restricted for use by site license
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