General Category > Electric Boat Conversions

Brake by reversing

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TommiS:
Vec500...try turning throttle to 0-position (12 o'clock). Then e-lock off and again on. Then try to reverse. This works in my solution.

Pontus:

--- Quote from: TommiS on June 14, 2024, 06:04:51 AM ---Vec500...try turning throttle to 0-position (12 o'clock). Then e-lock off and again on. Then try to reverse. This works in my solution.

--- End quote ---

Needing to do that kind of a manoeuvre in order to brake sounds like a recipe for disaster when trying to dock in bad weather.

Polar:

--- Quote from: Pontus on June 04, 2024, 07:26:53 AM ---Here's a short follow up on how this issue has developed.

My European GM reseller Vela Solutions replaced the VEC 500 for a EZ Kontrol - free of charge! They also supplied the, a bit ugly though quite sturdy, GM Throttle.

Initial test show no sign of last year's issue. There's no problem doing quick changes between forward and reverse, even when the motor is still coasting.

More testing is needed though, since I haven't tried to brake att higher speeds yet, like when sailing.

--- End quote ---



For future boatowners experiencing this: I can confirm the above. Coasting keeps the shaft spinning. Vec controllers won't allow reversing when the shaft is still spinning. It almost has to stop or stop totally.
I replaced my vec controller with an ezkontrol version.
Now I can brake by reversing at any speed (boat has a max of 11km/h). Docking has never been so simple when you come of a diesel. Very quick response in shifting forward-reverse and back

Tested over a longer period. Very happy with it.

I have a belt driven setup. I wondered if the belt would skip teeth when going from forward to reverse but it holds up.

Don't bother trying mechanical or e-lock braking. The extra operation takes too much time. Biting the bullet and switching to an ezkontrol has been my perfect sollution.

Pontus:
Yes I can confirm the above as well.

I replaced my VEC for an EZkontroll last year and, as said, docking has never been as easy as now.
It's actually a game changer to be able to go full throttle for 1/2 second in order to manoeuvre the boat rather then accelerating.

Johnculley:
Hi Pontus. Which throttle are you using ? I have the TRC012 and was told by GM to connect all the cables. Several of them don’t fit as the plugs don’t match but the motor seems to work ok. (A bit of “shuddering” at certain revs but everything else seems ok.  I’ve only used the motor once and I’m sure there will be more things to deal with.). I have an EZKontrol controller. Just wondering if you have all cables connected. From memory it cruise, brake and alarm that aren’t connected.

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