Difference between revisions of "FMA"
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(Created page with "Automotive lingo abbreviation for '''Fuel Mean value Adaptation''' (Kraftstoffmengen-Mittelwertadaptation). It corrects injection errors based on MAF modelling and Lambda...") |
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| − | Automotive lingo abbreviation for '''Fuel Mean value Adaptation''' (Kraftstoffmengen-Mittelwertadaptation). It corrects injection errors based on [[MAF]] modelling and Lambda output. | + | Automotive lingo abbreviation for '''Fuel Mean value Adaptation''' (Kraftstoffmengen-Mittelwertadaptation). It corrects injection errors based on [[MAF]] modelling and [https://en.wikipedia.org/wiki/Oxygen_sensor Lambda] output. |
Bosch EDC16 series offers short and long-term tables of corrected injection errors. | Bosch EDC16 series offers short and long-term tables of corrected injection errors. | ||
| − | + | == Example == | |
| − | + | # Driver requests [[IQ (Injection Quantity)|IQ]] 55mg of fuel, which translates into 32° of crankshaft | |
| − | [[ECU]] checks [[FMA]] tables and finds out that last injection event caused excessive smoking | + | # [[ECU]] checks [[FMA]] tables and finds out that last injection event caused excessive smoking at 32° |
| − | injection duration is corrected down to 31.7° based on historical injection errors | + | # injection duration is corrected down to 31.7° based on historical injection errors |
