Just out of curiosity, does anyone know if the Torqeedo controller works off torque / amperage?
The Torqeedo 4.0 displays Watts used (the 2.0 shows battery voltage, but nothing about the motor). They also mention NOT to run it dry. I was initially assuming this was because the motor itself is below the water line - so if you run it dry, there isn't much cooling.
If it was current limited instead of voltage controlled, that would be yet another reason not to run it out of the water.
John
From: "Myles Twete matwete@comcast.net [electricboats]" <electricboats@yahoogroups.com>
To: electricboats@yahoogroups.com
Sent: Monday, April 27, 2015 8:42 PM
Subject: RE: [Electric Boats] Controller using torque vs. speed
It'll be okay until you get into choppy water or any other variable load scenario...at that point the motor will accelerate and then suddenly load up ...if your prop is driven via shear pin, you'll be replacing these more often.
Sent from my Verizon Wireless 4G LTE smartphone
-------- Original message --------
From: "luke.wolbrink@gmail.com [electricboats]"
Date:04/27/2015 10:59 AM (GMT-08:00)
To: electricboats@yahoogroups.com
Subject: [Electric Boats] Controller using torque vs. speed
Hello,
I'm working on changing to a new controller. After install I learned that with this particular controller the throttle controls the amount of torque. In my previous setup my throttle controlled speed (RPM). What difference will this make when actually in the water? Will I be able to notice at all? On the hard the motor just reved up to max at only about 20% throttle, no load to push agains so it requires almost no power to get to full revs. I'm afraid of what this will be like in the water.
Thanks,
Luke
Tartan 27 #478 "On the Brink"
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Posted by: oak <oak_box@yahoo.com>
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