manuale per l'installatore - 1/3 tipologie d'installazione - 2/3 software ...
manuale per l'installatore - 1/3 tipologie d'installazione - 2/3 software ...
manuale per l'installatore - 1/3 tipologie d'installazione - 2/3 software ...
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5.5 CHANGE-OVER<br />
This screen allows to modify the<br />
parameters for the petrol-gas<br />
change-over. Two sections have<br />
been displayed in red (see picture<br />
5.16):<br />
1.Cold engine<br />
2.Warm engine<br />
The first is necessary to the<br />
gas/petrol change-over calibration<br />
when the vehicle is cold (for example<br />
after a long stop without starting<br />
the engine); the second for the<br />
change-over calibration when the<br />
engine is warm (for example when<br />
you start the engine after a short<br />
stop) The reference tem<strong>per</strong>ature is<br />
the genius one or, in case the vehicle<br />
original sensor is connected<br />
and calibrated, the engine cooling<br />
water one.<br />
In the Cold Engine section you<br />
can introduce the following data:<br />
• Change-over tem<strong>per</strong>ature<br />
higher than: it corresponds to<br />
the tem<strong>per</strong>ature we have to<br />
achieve after the set time to<br />
execute the change-over.<br />
• Change-over Delay: it corresponds<br />
to the waiting time<br />
before verifying the change-over<br />
tem<strong>per</strong>ature.<br />
• Similar paragraphs are included<br />
in the Warm Engine section.<br />
Usually, in the Cold Engine section,<br />
it is better to set a low changeover<br />
tem<strong>per</strong>ature and a medium<br />
long delay while in the Warm<br />
Engine one it is better to set an<br />
higher change-over tem<strong>per</strong>ature<br />
Pic. 5.16 - Setting up – change-over parameters calibration<br />
Fig. 5.16a - Setting up - change-over petrol parameters calibration<br />
and a lower delay.<br />
Besides some parameters modification,<br />
the ADVANCED key <strong>per</strong>mits<br />
to execute the petrol/gas<br />
change-over which normally occurs<br />
if there is no gas in the tank or if the<br />
gas tem<strong>per</strong>ature is too low.<br />
This screen parameters have to<br />
be modified only with BRC technicians<br />
support.<br />
The configurable parameters<br />
(fig. 5.16a) are:<br />
43<br />
• MAP maximum value for the<br />
change-over: it corresponds to<br />
the manifold pressure value<br />
under which it is possible to<br />
change from gas to petrol.<br />
• RPM maximum value for the<br />
change-over: it corresponds to<br />
the rpm value under which it is<br />
possible to change from gas to<br />
petrol.<br />
• Petrol change-over tem<strong>per</strong>ature:<br />
it corresponds to the tem<strong>per</strong>ature<br />
threshold under which<br />
the petrol change-over occurs. it
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