In this presentation, the effects of
hybridization on fuel economy and dynamic
performances of vehicles will be discussed.
The R&D activity is part of a long term
cooperation project between University
Politecnico di Torino and the main telescopic
producer in Italy Merlo Spa. The simulation
and test are performed on the basis of a
patented telescopic hybrid solution suitable
for handling and agricultural applications. The
system offers a method of greatest efficiency
and least emissions. Power can split solely
to the driveline or partially to driveline and
machine hydraulics, and any excess power is
back into battery charging. In ‘Full Electric’
mode, only the electric motor provides drive
and the diesel engine is turned off. This mode
is ideal for indoor working inside buildings
or tunnels, or anywhere where noise and
exhaust emission must be minimized. and the
autonomy is that given by lithium batteries.
The effects of hybridization due to combined
analytical and simulation approach will also be
covered. The analytical approach is based on
the energy balance equations and considers
all energy paths in the HEVs from the energy
sources to wheels, whereas the simulation
approach is designed and realized in MATLAB/
SIMULINK environment. Furthermore,
in telescopic heavy vehicle, a series of
experimental proofs are accomplished to
gather up information to compare and analyze
the results of analytical and simulation
approach to experimental testing. Several
tests have been performed first of all in order
to identify the model. Secondly to characterize
the performance and compare the dynamic
performance with the conventional dieselhydraulic
machine performed in different
condition of a typical cycle for a telehandler
application
