History of MembersPage/Andrey/MapFilter
Older Newer
2009-03-09 20:33:30 . . . . MembersPage/Andrey [some info for recent firmwares, old is obsolete]
2009-03-09 19:08:24 . . . . MembersPage/Andrey [some info for recent firmwares, old is obsolete]
2009-03-09 19:07:46 . . . . MembersPage/Andrey [some info for recent firmwares, old is obsolete]
2009-03-09 19:07:21 . . . . MembersPage/Andrey [some info for recent firmwares, old is obsolete]
2009-03-09 19:06:51 . . . . MembersPage/Andrey [some info for recent firmwares, old is obsolete]
2008-07-26 15:39:41 . . . . MembersPage/Andrey [some notes]
2008-07-20 16:07:26 . . . . MembersPage/Andrey [minor]
2008-07-20 15:31:18 . . . . MembersPage/Andrey [new page - notes about MAP signal]


Changes by last author:

Added:
Implemented feature by default in FW (IIRC since 1.1.43):$FlgChr1$FlgChr> Use triggernum=1 for 4,6cyl, =2 for 8cyl$FlgChr2$FlgChr> Use samlenum=15 for 4cyl, =10 for 6cyl, =7 for 8cyl$FlgChr3$FlgChr> It is good upto 6-7krpm, but if you use hi-reving engine you probably need to reduce samplenum for good readings other sensors.

Obsolete (it was proposal, implemented feature is more advanced): $FlgChr4$FlgChr> My book says: $FlgChr5$FlgChr> MAP sampling 1ms (best) or 2ms (good too).$FlgChr6$FlgChr> Each sample should added to summ, and at trigger event we have clear MAP value: MAP=summ/count.$FlgChr7$FlgChr>

We have ADC sample rate 1ms in firmware, i have made every 2nd ADC reading for MAP (exept time while WBO sampling). And average readings on trigger to trigger period(s).$FlgChr8$FlgChr> Two config variables: minimum samples for averaging (3-5) and trigger periods (1 for 4cyl and 2 for 6cyl)$FlgChr9$FlgChr> Last two ADC channels dropped, knock ADC never used (firmware uses knock chip advanced mode) and 2nd ego (for boost target or NBO), both never used in my setups.$FlgChr10$FlgChr>

MapFilterConfig.JPG

MapFilter.JPG