Baserunner Controller User Manual
Rev 1.0
while a much longer ramp is required if you need to start moving without
pedaling.
If you feel the motor repeatedly trying to start when applying throttle, the
“Autostart Ramp” may be too aggressive, or the “Autostart Max RPM” may be too
low. You may also generate faults such as “Instantaneous Phase Overcurrent.”
To correct this particular fault, try increasing either the “Current Regulator
Bandwidth” or the “PLL Bandwidth” parameters, or both. These parameters are
found under “Feedback Bandwidth Tuning” on the “Basic Setup” tab.
5.6 Throttle and Regen Voltage Maps
Advanced Setup tab
With most ebike controllers, the throttle signal controls the effective voltage and
hence unloaded rpm of the motor. With a Baserunner, however, the throttle is
directly controlling the motor torque.
If you pick the motor off the ground and give it just a tiny amount of throttle, it will
still spin up to full rpm as there is no load on the motor. People sometimes
mistake this behavior as an all-or-nothing throttle response. If you apply partial
throttle while riding, you will get a proportional torque from the motor which will
stay constant even as the vehicle speeds up or slows down. This is different from
standard ebike controllers, where the throttle more directly controls motor speed.
By default, the Baserunner is configured so that active throttle starts at 1.2V, and
full throttle is reached at 3.5V, which is broadly compatible with Hall Effect ebike
throttles.
The Baserunner has an analog ebrake line on the 9 pin Mains plug that can be
used to provide smooth variable regenerative braking force from zero up to the
max regen phase amps. In order to use the regen features of the V3 Cycle
Analyst, this ebrake signal must be shorted to the throttle signal so that a single
voltage can control both regen and power. This is achieved via the short 9Pin to
2Pin adapter cable discussed in Section 3.1.
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