ALFA ROME0 2.5V6 VAF to MAF Conversion Function
I have developed the following method to determine the relationship between Bosch VAF output and the HFM5 MAF I will use. ( Bosch 0 281 002 537).
I arrange the airflow through both sensors via adjustable bleed off valves to vary the airflow and connect to 2 X Vacuum cleaners. The airflow through both VAF and MAF will be the same. See the attached photos. Note the slightly unstable nature of the MAF signal in my setup so I plot Min/Max/Avg values.
Apply appropriate supply voltages to both devices and the following graph produced. I should then be able to load this data into Pilot VAF/MAF configurator and get a very close tuning result. I hope.
I will ignore the low value data.
I will smooth the mid flow lump as I suspect not real.
I can extrapolate the curve to the higher airflows which I could not achieve.
Последний раз редактировалось Pin; 14.03.2021 в 12:53.
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