Brammo 2013 Empulse, Руководство пользователя

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Batteries and Charging
Charging and Battery Care 35
BATTERY SYSTEM PERFORMANCE GUIDE LINES
The Brammo Empulse is the world’s fastest production electric
motorcycle and represents the latest in electric motorcycle
technology.
A key part of the Empulse is the BPM15/90 battery system, the
BMP15/90 is a “smart” battery module and communicates voltages,
currents, state -of-charge, temperature, humidity, and other
parameters to the Vehicle Control Unit (VCU) to monitor, and if
necessary, take action on to protect your battery modules from
permanent damage or degradation.
Here are some situations where the VCU will take corrective action to
protect your battery system:
1. Cold weather riding.
The internal resistance of battery cells increases in cold weather
(anywhere near or below 32°F or 0°C), creating more significant
voltage sag in the cells and less power being available. The
BPM 15/90 battery system has cell heaters that will work to
overcome this issue anytime the bike is turned on or charging. If
you are going to be riding in cold conditions, we recommend
keeping your Empulse plugged in overnight or giving it a 10-15
minute “warm-up” period before riding. If you’re riding at low
State-of-Charge (SoC) – say, below 30%, in cold conditions,
please be aware that this increased voltage drop can
manifest as a reduction in available power. When this
happens you should safely reduce your speed and adjust
your riding style accordingly
.
2. Low State of Charge.
The BPM 15/90 battery system indicates a State-of-Charge that is
calculated by counting the energy expended as current and
comparing that to the present time voltage of the pack and cells.
At low SoC, high current demands from the battery can cause
the voltage to drop quickly resulting in less power being
available (Power = Voltage(Volts) x Current (Amps)) than when
the bike is fully charged. If too much current is demanded, then
it is possible for the batteries to reach their Low Voltage Cut-out
point (LVC). If this occurs, the VCU will make the decision to
disconnect the main relay on the Empulse to prevent potential
permanent damage to your battery system. To prevent a
potentially hazardous situation, please be aware of and respond
to this condition by adjusting your riding style. Your Empulse will
flash the green lights at the top of the display and display a “Low
Battery” warning on the digital LCD display when this condition
is a possibility.
When this happens you should safely reduce
your speed and avoid heavy throttle use until you can reach
a location where the Empulse can be recharged
.
3. Very heavy throttle demand
Because voltage sags as current is delivered from the battery,
very heavy throttle usage at a low SoC will amplify the effect. An
example of when this condition might occur is at a racetrack,
where throttle demand is very high. Be aware that reduced
power and even main relay cut-out protection can occur with
SoC as high as 30%. This is not a SoC inaccuracy as the energy is
still available in the battery.
Should you experience reduced
power or main relay cut-out, you should safely reduce your
speed and avoid heavy throttle use
.
Empulse.book Page 35 Thursday, June 27, 2013 11:03 AM