Throttle response changed after increasing battery voltage

[TommyCat]

1.2 volts on the throttle signal sure is an odd place to get stuck... was it still able to move around when you're moving the throttle handle?

Just checking... from your perspective CCW = throttle down, and CW = throttle up, correct?
Is this controller doing regeneration at any time?

Reset procedure is to rotate throttle to home or off position, then reapply to the power on area?
Does applying the brakes reset it?

The go pro is fine, but I don't want you to get too distracted from driving!
Tape up those testing leads better too...

 

[Zambam]

1.2 volts on the throttle signal sure is an odd place to get stuck... was it still able to move around when you're moving the throttle handle?

That's the voltage (that I think I saw from a quick glance) when I got no power as I gave throttle input.

Just checking... from your perspective CCW = throttle down, and CW = throttle up, correct?

Correct

Is this controller doing regeneration at any time?

No regen

Reset procedure is to rotate throttle to home or off position, then reapply to the power on area?

Correct, that's the only way to get power back.

Does applying the brakes reset it?

You mean apply brake while holding current throttle position? That'd be hard to do for me (I do not have big hands or long fingers). If you are suggesting the brake signal may have been inhibiting the throttle, I've thought about that also. My hunch is that's not happening. To rule that out I need to monitor the brake signal (using an LED).

Edit: would using an LED to monitor brake signal be easy to rig up?

The go pro is fine, but I don't want you to get too distracted from driving!
Tape up those testing leads better too...

Gopro lessens distraction (do not have to watch DMM anymore). When it happens, I'll curse, that'll be the cue during video playback.

Not every wire is taped (3 throttle wires brought out) to make switching DMM connection easier. Nothing can short (the way it is) if an alligator clip falls off. I'll take your advice and tape it better.

 

[TommyCat]

You mean apply brake while holding current throttle position?

Yes.

 

[TommyCat]

When it happens, I'll curse, that'll be the cue during video playback.

When it happens, this is a GOOD thing!

The goal is to get it stuck in a faulted position. I.E. When the fault occurs FREEZE your throttle hand in the position it's in and keep the motor stuck off. Resist the temptation to respond to automatically resetting it, do not allow the throttle to return to the home position! Do NOT use the brake at this time if possible...

Hold it there, walk the bike to a safe spot and lift the drive wheel off the ground with the stand.
After achieving as good and safe a testing position as possible, always keeping the throttle twisted. Now you can lift the seat and check for the tattle-tail flashing controller error code hopefully set.

Look to see if the throttle voltage can be varied at this time with throttle movement. Do NOT let it get to HOME position! Testing in the mid ranges.

If need be, with the throttle secured in the approximate 25% power position. Start a series of physical checks and monitor the signal voltage.
Anything changes when you...
Turn the steering to full left to full right stops?
Moderately tapping on the throttle assembly.
Move or pull on any touchable throttle wiring or harnesses.

Have these steps in mind and be prepared before your rides. As always fully charge before going out to increase the odds.
Always be wary of an unexpected motor start!
We don't need any viral videos!

Good luck, and good hunting!

 

[Zambam]

During a ride today it happened twice. Didn't have the Gopro mounted. It happened while stopped at a stop sign. Giving throttle to cross the intersection got no power, twist the throttle to increase throttle nothing happened. There was a car behind me so I had to move by letting throttle go to zero and start again. I did look at the DMM when I gave more throttle and the voltage stayed the same and didn't increase. The second time it happened was identical as the first time (also with car behind me).

I am having a lot of problems with my Gopro Hero 4K and trying to get warranty service (not connecting to bluetooth or wifi) . Mounting it on the scooter with the kit that I have does not work well (camera keeps slipping and drops out of position). I am giving up the idea of the Gopro for now.

Is it possible there's a dead spot in my throttle? I have a new one I bought for an ebike that I no longer own and could try it on the scooter and see if it fits. It has a battery meter with a push button switch which may get in the way.