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Engine optimalisation for
commercial vehicles
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For the start
few words about engine maufacturing process:
Even with the relativly smole tolerances used in engine
manufacturing, there is no two product with the same caracteristics,
therefore even at design stage the enginers are set the
drive softwares in the control computers used for the
engines to the lowest limit (for the worst engine) and
the outcome is minimum power and torrque. In practice
99% of engines are not made for the lowest limits and
able to give more power and torque with optimised settings,
but due to the lack of suficient time in mass production
manufacturing there is no possibility to do this at factory
level. This fine tuning process we can do after the vehicle
is out of factory and the result of the correct adjusments
is 10-15% increase in power and torque.
For commercial vehicles the main target in engine optimalisation
the reduction of fuel consuption 8-15% (with the same
driving behaviour). The explanation of lower fuel consuption
is that the optimised engine can move the vehicles weight
more dinamically, the engine run more frequent with normal
power than on top power and this ends up in economical
usage.
Due to the tuning proccess the engine will run within the
allowed parameters even after the optimalisation, therefore
it's lifetime will not shorten and ther will be no need
of extra servicing.
The cost of the optimalisation will come back from the fuel
savings in 2-3 months and from then the savings which can
be approximately 100,000-150,000.- HUF/month can be considered
as extra profit.
Two examlpes:
| Tuning |
before
|
after
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| VOLVO ® FH12 |
2,4 km/l
|
2,7 km/l
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| JOHN DEERE ® 8400 |
5th. gear
|
10th. gear
|
|
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