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HomeAircraftHelicopterRadio - Servo - Gyro - Gov - Batt › Using an external governor on electric heli
01-12-2011 01:14 PM  7 years agoPost 1
Nasscar][

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Delaware

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What solutions are available to us an external governor On an electric model besides using a magnet?

Nas,

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01-12-2011 01:28 PM  7 years agoPost 2
kcordell

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O Fallon, MO

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PM Dr.Ben, he has been doing lots of work with the GY-701 on his electric model in governor mode.

Team Futaba, Team Synergy/Rail, Team Scorpion, Team Castle Creations, YS Engines, VelTye

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01-12-2011 02:17 PM  7 years agoPost 3
dahld

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Bakersfield, CA, USA

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Mikado and V-Bar will be releasing very soon an on-line update to the V-Bar system that will include a governor function built into the V-Bar. This may or may not be of interest to you?

I don't have all the details yet, but it is designed to work with both nitro and electrics. Testing has shown it turns some ESC's with "less than great governors" into outstanding performers. Might be what you're looking for??

(-: dave

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01-12-2011 02:20 PM  7 years agoPost 4
jbdww

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Round Rock, Texas

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The Total-G has the Governor built in. Some ESC will not work with it like the Power Jazz as the gov in the Power Jazz can not be turned off, but then again the Power Jazz's gov works very good.

Skids Up
http://www.jbdww.com
http://twitter.com/jbdww/

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01-12-2011 02:26 PM  7 years agoPost 5
Nasscar][

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Delaware

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My plan is to use a Futaba GY750 and
Take advantage of it's gov feature
Along with my 14mz for complete programing
From my radio, was wondering is there
Is such a sensor that can be used
Instead of a magnet that could attach to
The Esc or motor wires to calculate what
The head speed is??

Nas,

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01-12-2011 02:34 PM  7 years agoPost 6
Nasscar][

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Delaware

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It's a shame that Futaba, CC or other vendors haven't
Made a device like this.

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01-12-2011 02:47 PM  7 years agoPost 7
jbdww

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Round Rock, Texas

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Eagle Tree has a brush-less ESC sensor that detects the motor speed, but you will have to swap a couple of wires, and the data that comes out will be the head speed multiplied by how many poles are in your motor.

Skids Up
http://www.jbdww.com
http://twitter.com/jbdww/

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01-12-2011 07:24 PM  7 years agoPost 8
cudaboy_71

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sacramento, ca, u.s.

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Eagle Tree has a brush-less ESC sensor that detects the motor speed, but you will have to swap a couple of wires, and the data that comes out will be the head speed multiplied by how many poles are in your motor.
most of that statement doesnt make sense. you can't use the eagletree as a gov...it is just a logger that reports headspeed. you plug in one or two of the sensor wires (as required) to your motor wires. it uses your the gear ratio and power setup (voltage, kv, and pole count) you enter into the software to report headspeed and/or motorspeed.
It's a shame that Futaba, CC or other vendors haven't
Made a device like this.
the phoenix line has a gov built in. the latest firmware is pretty good, though i still can't get it to play nice with vbar. that should be a moot point here shortly tho.

if it ain't broke, break it.

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01-12-2011 07:30 PM  7 years agoPost 9
Nasscar][

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Delaware

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Just to be clear on your comment jbdww,

Can explain how to made those wire changes
And will it support the HV 12S power systems?

And final result would allow any governor like for example a Futaba governor to sense the speed?

A diagram would be nice 

Nas,

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01-12-2011 07:34 PM  7 years agoPost 10
cudaboy_71

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sacramento, ca, u.s.

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OIC,

looks like jbdww is suggesting you repurpose the eagletree sensor as a headspeed sensor for a gov. sorry about that.

never seen it done. i'd like to hear more myself.

if it ain't broke, break it.

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01-13-2011 12:04 AM  7 years agoPost 11
jbdww

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Round Rock, Texas

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I need to clear this up. I am not talking about using Eagle Tree. I am talk about using there bush-less RPM sensor to work with a Governor. I used this product with the SK720. I will try to find mine and see what wires I swapped.

Skids Up
http://www.jbdww.com
http://twitter.com/jbdww/

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01-13-2011 12:27 AM  7 years agoPost 12
Nasscar][

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Delaware

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Nice, pictures, etc please....

Here we come GY750.

Nas,

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01-13-2011 12:42 AM  7 years agoPost 13
Dr.Ben

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Richmond, VA, USA

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I would be interested to see logger data on how tightly the EagleTree sensor allowed the governor to hold RPM. I called Eagletree last year to inquire about using their sensor to drive the governor. It was their opinion that the ouput signal from the sensor would be too dirty to allow the governor to work as well as it could. If this has not proven to be the case in reality, then great.

Ben Minor

Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA

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01-13-2011 01:18 AM  7 years agoPost 14
baby_zyklon

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Singapore

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On the eagletree FDR, the brushless rpm sensor seems to work fine for me. It isn't really that noisy, but there certainly is noise in the measurement. The optical sensor(the one where you pass a white strip over it) on the FDR had issue with sampling rate, as in it wasn't updating that regularly.

IMO, there is no point in getting a external governor on a e-heli. The extra hassle and time, and possibly cost, is not quite worth it as compared to a decent esc with a good governor, like the kontronik jive. I mean if you add the price of a average esc that doesn't blow up every 20 flights and a average HV bec that doesn't drop too much voltage under load, you are probably not far away from the price of a jive which comes with a great governor software and probably much less weight and bulk.

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01-13-2011 04:50 AM  7 years agoPost 15
captain1

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Sydney - Australia

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Why not convert your govenor to optical. I did mine on my GV-1 years ago

see here.

Once you have done this then use any of the metal shafts (main shaft perhaps) and use a permanent marker to colour one half of it black and leave the other half shiney. Should work perfectly.

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