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INNOVATIVE FEATURES OF THE INTEGRATED PROPULSION & CHARGING
SYSTEM DEVELOPED BY INDA FOR LEA AND LHy-M LOCOMOTIVE FAMILIES
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Both the Electric Vehicles and Hybrid Electric Vehicles are currently
employing charging systems that are either placed on-board or mounted
separately outside the vehicle as part of the infrastructure. Additional
costs arise from both solutions, lower yield if on-board placed because
of the suplimentary load, higher expenses with the infrastructure
if built separately.
- Our system removes the need to create special expensive infrastructure
for charging the batteries, limiting to standard three-phase terminals
with minimal costs.
There is no cheaper solution to charge the traction batteries of the
Vehicles nor easier to be implemented in the infrastructure today.
And there is no additional weight on both EV-s and HEV-s because no
separate charging devices are used to charge the batteries but the
same traction converters employed in the running mode.
- And maybe one of the most important advantages is that the Vehicles can employ
the wide spread already existing three phase terminals to charge the batteries
so they are not forced to run only on certain routes between sophisticated charging
stations.
A vital issue
is the time required to fully charge the battery, say to balance the State Of
Charge of the battery cells.
The standard full
charging time of the common electric Vehicles is 6-8 hours a day, too long time
limiting the operation of the professional
transportation
ones.
- Our system decreases the full charging time in quite a significant manner in
order to avoid as much as possible the limitations arised by the time spent for
a full charge from empty state. It is designed to charge the batteries under
the control of the Battery Management System in order to perform also the Redistribution
of the Charge between the battery cells, a new approach that allows the complete
usage of the capacity of the battery, dramatically reducing the time wasted for
a full charge. Having said the above, a full charge from empty state lasts no
more than 2 1/2 hours which is currently limited by the technological progress
achieved by the batteries.
Please note this
has nothing to do with the fast charging mode, available to almost all competitors
and lasting more or less the same amount of time.
These are quite different features.
The key is our system does not need to completely charge the batteries more than
2 1/2 hours ever.
- Last but not least, the system is oriented to the future in the sense that
in terms of power is ready to charge the batteries with higher currents in much
shorter time than the state of the art allows the Li-Ion batteries to be charged
today. |
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The system developed by INDA for LEA and LHy locomotives fits - without
changes - on Electric City Buses and road Vehicles such as Electric
Trucks, SUVs, minibuses and hybrid passenger trains. |
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