Search found 6 matches

by Brad777
Jul 14 2020 3:54pm
Forum: EBike General Discussion
Topic: How To, 50A BBSHD Controller Mod
Replies: 261
Views: 55936

Re: How To, 50A BBSHD Controller Mod

Thanks for the advice Magsy. I think i'll probably do the same and change both shunts to 3mOhm and use two soldering irons to remove them and refit them on clean pads as you suggested. You got 45A and not 50A..........must be because of the 28A limit on the new locked controllers. I also have one of...
by Brad777
Jul 13 2020 12:11pm
Forum: EBike General Discussion
Topic: How To, 50A BBSHD Controller Mod
Replies: 261
Views: 55936

Re: How To, 50A BBSHD Controller Mod

Ok Fechter Thanks 55A..........that's too much. I don't want to push the limits but I do need a bit more torque in short bursts on the tight, hilly mountain trails I ride. I have a fried controller that I can rob one of the shunts from so I could try the easier 45A set-up with three stacked. I also ...
by Brad777
Jul 13 2020 7:12am
Forum: EBike General Discussion
Topic: How To, 50A BBSHD Controller Mod
Replies: 261
Views: 55936

Re: How To, 50A BBSHD Controller Mod

Hi I'm thinking of doing the shunt mod. Can anyone tell me please what the peak amps would be if I stacked a 3mOhm shunt on top of the the two existing 5mOhm instead of another 5mOhm. Many thanks Brad. Fechter wrote 3 milliohm (would give you 50A if you replace both) If you just replace one of the p...
by Brad777
May 20 2020 1:12pm
Forum: EBike Non-hub Motor Drives
Topic: DIY Fix for BBS02/BBSHD Pedal/Throttle Issue
Replies: 157
Views: 40385

Re: DIY Fix for BBS02/BBSHD Pedal/Throttle Issue

I changed the start voltage and I don't think it made much difference but at 0.9V I got error-5 and at 1.3V the motor wouldn't stop till I pulled the brake and the brake sensor stopped it......I've reset it to 1.1V I agree after thorough testing today over 29 miles that the point the transistor kick...
by Brad777
May 19 2020 7:29am
Forum: EBike Non-hub Motor Drives
Topic: DIY Fix for BBS02/BBSHD Pedal/Throttle Issue
Replies: 157
Views: 40385

Re: DIY Fix for BBS02/BBSHD Pedal/Throttle Issue

Thanks Rassy and thanks Fetcher for your feedback. Thinking back to my first BBSHD in 2016 I remember now that when the throttle takes over there was a small dead band where the throttle signal's not strong enough and this does feel the same but maybe a little more obvious on this setup. I might try...
by Brad777
May 18 2020 6:05am
Forum: EBike Non-hub Motor Drives
Topic: DIY Fix for BBS02/BBSHD Pedal/Throttle Issue
Replies: 157
Views: 40385

Re: DIY Fix for BBS02/BBSHD Pedal/Throttle Issue

Just done the mod to stop the snatchy throttle/PAS thing. Many thanks to Fetcher, Rassy and all others for your input. I did the external version the same way as Mayon did in the above entry May 5th. Thanks Mayon. I used the same components as Fetcher 2N5308 transistor and 100K 1/4W resistor and it ...