History of MembersPage/Andrey/Cranking
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2009-02-19 12:53:37 . . . . MembersPage/Andrey [FW feature info]
2009-02-19 10:44:53 . . . . MembersPage/Andrey [FW feature info]
2009-02-19 10:37:43 . . . . MembersPage/Andrey [FW feature info]
2009-02-19 10:35:41 . . . . MembersPage/Andrey [FW feature info]
2009-02-13 07:54:24 . . . . MembersPage/Andrey [new page, my settings]
2009-02-13 07:49:57 . . . . MembersPage/Andrey [new page, my settings]
2009-02-13 07:46:54 . . . . MembersPage/Andrey [new page, my settings]


Changes by last author:

Added:
New cranking VE based fuel implementation (from 1.1.51)

You can start from my settings as default, i have good start for -25C

If you want scale all fuel simple change Crank VE, and if you use Speed Density match (100kpa,low rpm) area with same VE too, see my VE table.

I use twice downscaled req.fuel, so my VE=122 same as VE=61 if used default req.fuel calculations.

Use Alternate fire at cranking by default. But if too cold and small injectors, you probably need big PW>127ms, it is not supported, therefore use "Fire all banks at cranking", and set divider equal cyl_num for sequental, and cyl_num/2 for semisequental.

Cranking fuel:

*with addfuel: PW=req_fuel*VE*MAP*WarmUp*Cranking*Cranking*MATCorr/(CrankDivider*lambda)

*w/o addfuel: PW=req_fuel*VE*MAP*WarmUp*Cranking*MATCorr/(CrankDivider*lambda)

Additional fuel (if enabled) applied only if rpm<crank_treshold.

That is for S-D, for AlphaN same but w/o "*MAP"

Don't forget WarmUp is scaled from MAP, and we have full scale (85% in my settings) if S-D used.

Afterstart enrichment:

*Even at cranking afterstart applied for "*Cranking" part to prevent flood cold engine if it not started from first revs. Re poweron ignition if you want apply all fuel from start.

*Full fuel for first 16 revolutions.

*Decay to half from 16 to 64 revs.

*Decay slowly from half to 0 for user defined time after 64rev. Always use values bigger than 32cycles (it is 64revs).

My settings:

Cranking.PNG

Cranking1.PNG

VeCrank.PNG

Warmup.PNG