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HBC-series V7 LV+MV
Additional information
Influence of the battery quality to controller behavior (automatic current reducing).
If the peak current during start and acceleration loaded battery to the point that the voltage has dropped below the minimum controller
voltage, i.e. below about 10V, the controller automatically reduce power (current) to the engine (i.e. the speed ramp-up) so that the bat-
tery voltage does not drop below the safe limit.
a)
Very quality („hard“) battery, voltage drop is low under load, not start current reduce process
b)
Not so “hard” battery (worse quality) or too high load or too short acceleration time – current is reducing during acceleration so that
voltage not dropped under minimum voltage border.
c) Not suitable battery, damaged battery, extremely high load or extremely short acceleration time
– current is significantly reducing
for hold battery voltage above minimal voltage border
Current reducing
Motor speed (rpm)
time
current
time
current
time
current
Current reducing
a)
c)
b)
min. voltage level
Battery Voltage
Battery
Voltage
Battery
Voltage
Motor speed (rpm)
Motor speed (rpm)
