Wideband input tracer and averages
Posted: Sat Jun 11, 2011 12:51 am
Matt,
First, why is the boundary value set to 49 when counting the number of values for a given location ?
e.g. playing at high speed a log file, I noticed that in idle regarding the count in 800rpm / TP=7 box:
..... 47 48 49 1 2 3 4 ... 17
Absolute values per box would be more useful to achieve consistent statistics !
Second, more than the average, you should add the standard deviation calculation (with a given threshold as input parameter). It will allow us to know how many values are around the average and then a level of confidence
At the moment, average is more or less useless because when you have "free air" values spoofing the real AFR values(= AFR 32 (rounding you did) for Innovate or at least > 20.9 or 209) it corrupts the average ....
And more than that, you should also specify the AFR central value around which, the maximum number of AFR values are concentrated. Such approach removes the problem with AFR=32 values because only few of them appear in a log in the overall map.
First, why is the boundary value set to 49 when counting the number of values for a given location ?
e.g. playing at high speed a log file, I noticed that in idle regarding the count in 800rpm / TP=7 box:
..... 47 48 49 1 2 3 4 ... 17
Absolute values per box would be more useful to achieve consistent statistics !
Second, more than the average, you should add the standard deviation calculation (with a given threshold as input parameter). It will allow us to know how many values are around the average and then a level of confidence
At the moment, average is more or less useless because when you have "free air" values spoofing the real AFR values(= AFR 32 (rounding you did) for Innovate or at least > 20.9 or 209) it corrupts the average ....
And more than that, you should also specify the AFR central value around which, the maximum number of AFR values are concentrated. Such approach removes the problem with AFR=32 values because only few of them appear in a log in the overall map.