Re: [Electric Boats] Newbie...But question anyway.

 

Yep,  at really low boat and wind speed to program needs to put power to the motor.  As the speed increases the program just needs to take the drag off the prop.  As the boat approaches hull speed the motor needs to stop power and  as the wind increases to the point that the boat can maintain hull speed and recharge the system the program need to go to gen mode.  As an ex-software engineer the problem is what language do we write it in (what platform will it run on?) and is there a standard interface for the inputs and outputs.

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From: scrap2do <scrap2do@yahoo.com>
To: electricboats@yahoogroups.com
Sent: Tue, October 26, 2010 1:56:21 PM
Subject: [Electric Boats] Newbie...But question anyway.

 

I've followed this group for awhile now but never but never contributed. I guess, "the assume thing", a question is as good as an answer if it makes people think.

Heat is a problem. Heat causes power loss. Electric motors have a "sweet spot" for rpms. Wind and current can and do move a boat along. Probs turning in the water can regen. elec.

My question is, is there a computer program on the market that will take all the vars. into consideration and controll an electric motor?

If so what is the name of it? If not, some of the smartest people are on here so, why not?

You'll could tell me within .000004 of knots how fast my pontoons would travel across water with x=rpms, prop, watts, etc.

Most of you could trans the atlantic in a rowboat with nothing more than a bed sheet, 12v car batt. and a used wasing machine motor.

Not sure what my point is, just a thought.

Thx,
scrap2do

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