Author Topic: How can I disable regenbraking on MP III ?  (Read 2657 times)

Offline jvr

  • Confirmed
  • New Member
  • *
  • Posts: 12
How can I disable regenbraking on MP III ?
« on: July 31, 2013, 09:42:19 PM »
I programmed regen braking to minimum, but it is still 100% (the wheel stops rotating).

How can I disable regen braking, but keep the motor-off-function if I pull the brake levers?

My MP III (16 " cast) had cut his cables during transportation, so I had to reconnect everything.

Is it possible that I made a wrong connection?

Offline Leslie

  • Confirmed
  • PhD. Magic
  • ******
  • Posts: 2,047
Re: How can I disable regenbraking on MP III ?
« Reply #1 on: August 12, 2013, 04:55:15 PM »
BTW unless the program indicates the program has updated the controller, the settings will not change.  I forget what it says but the PC beeps and some red text comes up saying load success or something like that..   Try programming 5% speed and see if the bike runs very slowly to test if the program cable is functioning properly.

There is a way to bypass regen and still make the motor shut down.

R1 is up for discussion, This is so your do not stress the hall sensor sinking the output to a ground, and the diode is to mimic the V drop expected from the throttle. 

I would use a multimeter set on milliamps and run the red wire current through a multimeter to test how much the circuit draws normally, then try a 750 ohm to 500 ohm, if the bike slows too much, try around 400 ohm, you shouldnt need to go much lower, you wont notice any loss. 

With a cycle analyst, it does a similar thing to limit the trottle and the circuit is much the same, but the resistor is 330 ohms, so I wouldn't use a resistor lower than 330 ohms for R1.  It depend on the hall sensor and the circuit, but your throttle hall sensor will be safe at 5ma or lower with the below mod.
« Last Edit: August 12, 2013, 05:00:54 PM by Les »

Bring it on