Author Topic: VEC300 for boat: questions about regen, revers, hall effect throttle  (Read 1990 times)

Offline Alpegu

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Hi, I've had the goldenmotor 5kW BLDC for a year now and it's been working okay, but not perfectly. I hope to have fixed most of the issues, which came from my suboptimal setup, but now I find myself with the following situation.

I have a hall effect throttle which, due to its peculiar design, can only be set up "backwards" on my boat - it will send a "reverse" signal when pushed forward and a "forward" signal when pushed back. Since it's not a potentiometer, I can't just swap the wires. This in itself isn't a problem, since my transmission was accidentally set up in a way that the motor's default reverse direction actually makes my boat go forward.

Now, my questions:
- Is it an issue to mostly be motoring in the motor's default reverse direction?
- Last year, I could never get regen to work, and reading other posts it seems that the fact I was in reverse might be the cause for this, as the controller doesn't seem to regen if it thinks I'm in reverse. Would it work for me to use the regen and "reverse direction" buttons when trying to get regen? As I understand it, the "reverse direction" button only changes what direction the motor considers forward, so shorting this would work?
- If I end up always being in reverse, what settings should I program onto the controller? 100% throttle speed in reverse? Anything else?

Offline Bikemad

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Re: VEC300 for boat: questions about regen, revers, hall effect throttle
« Reply #1 on: March 25, 2025, 05:02:17 PM »
Hi andto the forum.

I don't know if the motor actually produces the same amount of power in Reverse as it does in the default Forward direction, and I don't know how/if the Reverse switch function will affect the motor operation when the Hyperbola throttle mode (Boat throttle with Forward-Neutral-Reverse operation) is being used.

Regenerative braking (and also the Cruise Control function) does not usually work in reverse, so I suspect you will not be able to get regen working in the forward direction without reversing the current throttle operation, and you'll also need to reconfigure the motor to run in the opposite direction by default.

If you have to run it in Reverse, make sure that the "Backword speed ratio (%)" and the "Reverse torque ratio (%)" are both set to 100%.

Alan
 

Offline Alpegu

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Re: VEC300 for boat: questions about regen, revers, hall effect throttle
« Reply #2 on: March 26, 2025, 02:24:26 PM »
Thank you!

Is there any way I can find out about the answer to these?

I don't know if the motor actually produces the same amount of power in Reverse as it does in the default Forward direction, and I don't know how/if the Reverse switch function will affect the motor operation when the Hyperbola throttle mode (Boat throttle with Forward-Neutral-Reverse operation) is being used.

Offline Bikemad

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Re: VEC300 for boat: questions about regen, reverse, hall effect throttle
« Reply #3 on: March 30, 2025, 02:10:00 PM »
Is there any way I can find out about the answer to these?

I don't know if the motor actually produces the same amount of power in Reverse as it does in the default Forward direction, and I don't know how/if the Reverse switch function will affect the motor operation when the Hyperbola throttle mode (Boat throttle with Forward-Neutral-Reverse operation) is being used.


You could simply try fitting a Reverse switch and see if it has any effect on the motor's direction and/or rpm.

Alan