Motor braking problem (MXUS V3 and Kelly KLS7230S) (Problem solved!)

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VelluK   100 mW

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Joined: Feb 25 2018 4:41pm
Location: Helsinki, Finland

Motor braking problem (MXUS V3 and Kelly KLS7230S) (Problem solved!)

Post by VelluK » May 20 2018 1:50pm

I have a motor braking problem on my bike. When I have some throttle on my bike and I set the throttle to zero and again give some throttle when the bike is just freewheeling the motor makes really strong braking and after that start to accelerate again. The braking is really strong and motor gives really bad sound when braking. There should be some settings on the controller which would fix the problem but I have not found it yet.

Motor is MXUS V3 3K Turbo (7,2kV) and controller is Kelly KLS7230S.

Does anyone have any ideas which settings I should change to fix the problem?

Thanks!
Last edited by VelluK on May 22 2018 9:31am, edited 1 time in total.
Stealth ebike, hub motor MXUS V3 3K Turbo, controller Kelly KLS7230S, batteries Sony VTC5 20s6p (84V 15.6Ah), rear wheel moto 21"

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eee291   10 kW

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Location: Austria, Burgenland: Güssing

Re: Motor braking problem (MXUS V3 and Kelly KLS7230S)

Post by eee291 » May 20 2018 5:56pm

Same thing happened to me when I forgot to set Motor identification to 170. when you do this you have to keep the wheel off the ground while it's mapping the hall sensors. After about 30s the green LED will come on, after that do a restart and off you go.

2WheelsMovesTheSoul   100 W

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Re: Motor braking problem (MXUS V3 and Kelly KLS7230S)

Post by 2WheelsMovesTheSoul » May 21 2018 10:05am

Look at page 22 & 23 of the KLS-S manual. http://kellycontroller.com/mot/download ... lV1.10.pdf

Go to 4.3 (Step 3)

(1) RLS_TPS Brk %: Set to 0

Factory setting is 0, changing this may solve the issue if set at any value other than 0.

(7) BRK_SW Brk %: Set to 0

You may only need to change (7) As this activates the regen while free-wheeling at 0% throttle with any brake input, the regen will continue until you throttle up again. I found this terribly annoying as well.

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VelluK   100 mW

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Posts: 42
Joined: Feb 25 2018 4:41pm
Location: Helsinki, Finland

Re: Motor braking problem (MXUS V3 and Kelly KLS7230S)

Post by VelluK » May 21 2018 2:27pm

eee291 wrote:
May 20 2018 5:56pm
Same thing happened to me when I forgot to set Motor identification to 170. when you do this you have to keep the wheel off the ground while it's mapping the hall sensors. After about 30s the green LED will come on, after that do a restart and off you go.
Thanks buddy, now the 0% throttle doesn't brake the wheel. I had to make it couple of times because the wheel started to rotate to the wrong direction :D Change Dir -setting and new hall sensor calibration fixed the problem. Cool 8)
Stealth ebike, hub motor MXUS V3 3K Turbo, controller Kelly KLS7230S, batteries Sony VTC5 20s6p (84V 15.6Ah), rear wheel moto 21"

2WheelsMovesTheSoul   100 W

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Joined: Oct 17 2017 12:59pm

Re: Motor braking problem (MXUS V3 and Kelly KLS7230S)

Post by 2WheelsMovesTheSoul » May 21 2018 3:14pm

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eee291   10 kW

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Joined: Nov 05 2015 4:35pm
Location: Austria, Burgenland: Güssing

Re: Motor braking problem (MXUS V3 and Kelly KLS7230S)

Post by eee291 » May 21 2018 4:18pm

Haha nice :lol:

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