Rev.0 LEPTON
Service
manual
OXYGEN S.p.A.
23
BATTERY MANAGEMENT SYSTEM
AUTONOMY INDICATORS ON THE SCOOTER
The LEPTON scooter has a series of visual LCD indicators on the control panel that
indicate the scooter’s charge remaining in terms of kilometers. This calculation is
based on an algorithm that estimates remaining energy and average use.
The estimate is calculated in terms of the difference between Ah stored during the
recharge and Ah expended during its use.
NOTE:
In the event that the vehicle is not in use for a long period of time, the
remaining charge estimate could be erroneous. To avoid this error, the
scooter must be completely recharged.
Average use is calculated on the basis of the driver’s riding style and the road
conditions. The calculation is derived from measurements taken during the last 45
seconds that the scooter was in use.
Therefore, with a certain charge, the following assumptions can be made:
•
On a level road, the remaining charge would be about 45 km.
•
On a hill, the average consumption would be greater, thus the remaining charge
lower, for example, around 25 km. The charge remaining would increase once
again if the scooter returned to a level road.
•
On a descent, average consumption would be low, and so the remaining charge
would be high, for example, around 60 km. The remaining charge would
decrease if the scooter returned to a level road.
•
On a level road, the charge in the batteries would diminish on account of the
consumption of energy. Thus, the estimate of remaining charge diminishes in
direct relationship to kilometers driven.
As illustrated, the remaining charge indicated can vary greatly even in a short period
of time, when the charge contained in the battery actually does not change
substantially.
The reserve battery low energy light begins to blink when the amount of charge
remaining in the batteries is only sufficient to cover less than 15 km.
The reserve battery low energy light stays lit when the amount of charge remaining
in the batteries is only sufficient to cover less than 10 km.
NOTE:
If the reserve battery low energy light is activated, and the remaining
charge shown is greater than the distance just given as examples,
have the light checked
.
