© 2005-2016 Nira Control AB 86
The Fm Acc Slow Factor is mapped to 5%.
The extra amount of fuel to be injected next to rounds caused med
slow acceleration enrichment will be:
30mg * 5% = 1,5 mg
The following two rounds
(30-1,5)mg * 5% = 28,5mg * 5% = 1,425 mg will be injected.
5.1.9 Mapping -> Engine Start
A number of tables are used for control the pre start, start and post start
enrichment.
Start choke
Start Choke table is used for control the fuel during engine warm up.
0% = No Enrichment
20% = 20% More fuel
Post Start Enrichment
The maximum Post start enrichment is controlled in the table
Start Enrichment. The total enrichment for post start can never be greater
than this value.
Start factor. The start factor is the percentage value of the start enrichment to
be used. The start factor shall be ramped down to zero when the numbers of
total revolutions increase.
The table Start Index has Time between start at one axis and start revolution
at the other axis. The output is start index used in the table.
Start Primer
In the beginning of the start sequence, an additional fuel squirt is added. This
additional fuel is injected as soon as NIRA i7x is synchronized. The
appropriate amount of fuel depends on the engine temperature and is
programmed in Start Primer Table. The amount of fuel is given in mg per
cylinder and the Start Primer Table is independent from Start Sequence
Enrichment Table.
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