SINEWAVE GRINFINEON CONTROLLER MANUAL
Rev 2.1
-14-
Figure 14: Regenerative Braking Torque and Current as a Function of Motor RPM at 4 different
throttle regen voltages and also with ebrake lever pressed (Ebk, dashed lines)
This throttle mapped regen is handy since it allows for variable braking without
any additional wires to the controller, and in principle a small bidirectional throttle
would allow you to both accelerate and slow down without the need for any kind
of brake sensors. It is also how regenerative braking is activated with the V3
Cycle Analyst, which can send any voltage signal to the throttle line.
If you have a geared motor or mid-drive motor, then the regen won't have much
effect. It will cause the motor to quickly stop spinning when you squeeze the
brakes, but it won't be able to help slow the bike down due to the intrinsic
freewheel of these systems. There is no need to disable controller regen in this
situation, it is harmless.
3.6
Fwd / Rev
If you have an application where the motor direction needs to be reversed at
times, as is handy with trike and quad applications, then there is an additional
white forwards/reverse direction wire that is tucked under the ebrake heatshrink.
If this wire is exposed and then connected via a switch to the adjacent black
ground wire, it will enable you to change the motor direction on the fly without
swapping the motor phase and hall leads.
