Pages: [1]   Go Down
Author Topic: Comado motor fuera de borda (rc outboard motor)  (Read 1038 times)
0 Members and 1 Guest are viewing this topic.
Mar del Plata Argentina
Offline Offline
Newbie
*
Karma: 0
Posts: 20
Arduino Argentina
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

recientemente he realizado un control de direccion para un motor fuera de borda de 4hp.
Este proyecto tiene el fin de comandar el acelerador y la direccion del motor. ademas controla la temperatura y apaga el motor todo desde el joystick.
I recently made a direction control for outboard motor 4hp.
This project is intended to command the throttle and the direction of the motor. also controls the temperature and the engine off everything from the joystick.


Para eso debi fabricar una placa para montar sobre mi Arduino (severino) en la que tengo un regulador de voltaje de 6V. para dar alimentacion a los servos y no sobre exijir el de la arduino, tambien hay dos reley, uno para dar alimentacion a los servos una vez que corre el programa de la severino, que tarda unos 10 segundos y asi evitar que los servos se muevan sin control y el otro para apagar el motor puentenado la alimentacion de la bobina a masa.
To that must have been manufacturing a mounting plate on my Arduino (severino) that I have a 6V voltage regulator. to give power to the servos and not demand the the arduino, there are also two re-read, one to give power to the servos after running the program severino, which takes about 10 seconds and thus avoid the servos move without control and the other to stop the engine by a bridge feeding the coil to ground.



Se comanda todo desde un joystick analogico, en el eje Y desde el centro y hacia adelante se acelera y el eje X da direccion al motor. con un boton se fija el acelerador en el valor que se encuentre en ese momento para dar una velocidad fija y evitar variaciones indeseadas en la nevagacion, volviendolo apretar se libera. El otro boton funciona como boton de panico para dar corte de corriente al motor y detenerlo ademas de llevar el acelerador a cero.
It command everything from analog joystick in the Y axis from the center and accelerates forward and give direction to the X axis motor. with a button down the accelerator in the value of being in the moment to give a fixed rate and avoid unwanted variations in the navigating, making press releases. The other button functions as a panic button to give power outage also stop the engine and bring the throttle to zero.

El sistema tiene un sensor de temperatura LM35 que esta en la tapa de cilndro para evitar sobrecalentamientos por falta de refrigeracion, dando corte de corriente y no volviendola a activar hasta que la temperatura descienda a un valor normal.
The system has a LM35 temperature sensor which is on the cover cilndro to avoid overheating due to lack of cooling, giving a power cut and we did not activate until the temperature drops to a normal value.



servo del acelerador puesto en el carburador, el servo es de 15Kg/cm.
accelerator servo as the carburetor, the servo is 15Kg/cm.



El sistema de direccion tiene una placa de acero inoxidable donde se aloja el servo y con una biela sujeta al carter del motor se da giro. el servo debe ser mayor a 25Kg/cm, este debeo cambiarlo por uno metalico ya que el esfuerzo hace daños en la carcasa de polimeto del servo.
The directional system has a stainless steel plate which houses the servo and a rod attached to the engine crank rotation occurs. The servo must be greater than 25Kg/cm, this should change by a metal because the effort does damage to the casing of the servo Polimet.

Video


El codigo aun esta en desarrollo. proximanete les dejare el final y los archivos de eagle o foto de la placa para los conectores y reley.
para ver mas visita mi blog.
The code is still in development. will soon leave the final and eagle files or photo of the plate for the connectors and reread.
view more visit my blog.

 
http://arduinomdq.blogspot.com/2010/05/comando-distancia-de-motor-fuera-de.html#more



 ;D
/me





 





« Last Edit: May 30, 2010, 08:36:42 pm by favio-mdp » Logged

Phoenix, Arizona USA
Offline Offline
Faraday Member
**
Karma: 39
Posts: 5557
Where's the beer?
View Profile
WWW
 Bigger Bigger  Smaller Smaller  Reset Reset

Interesting project - what's it for? Are you building a full-scale R/C boat? If you are doing some kind of remote-control or unmanned project, then read on...

Something you didn't mention is your fail-safes; it seems to me that by using ordinary servos you could get into a situation where throttle is wide open, and/or turning is stuck - this could happen, for instance, if power somehow is disconnected from the servo. Do you have a way to account for this?

If not, a suggestion would be to monitor the feedback potentiometer on the servo, and as you command it to go to a position, monitor the values received to verify that they are actually moving to the correct position. If the values don't change (or change erratically), engage a relay or contactor (or something else) to immediately shut off the engine by grounding the ignition coil output.

You should also have an external way to engage this same system remotely.

All of this only really matters if the project is remotely operated, or you don't have any easy access to where the servos are in case of a failure...
Logged

I will not respond to Arduino help PM's from random forum users; if you have such a question, start a new topic thread.

Mar del Plata Argentina
Offline Offline
Newbie
*
Karma: 0
Posts: 20
Arduino Argentina
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

This project is designed for a small boat for three people with a 4hp yamaha 4 stoke engine as such has no remote command I created this device.

The engine has a security system for people falling into the water and also the project foresees the panic button to stop the engine, the throttle servo does not prevent hand from the wheel speed up the engine, steering servo is attached, by the moment with a stainless steel rod, and is expected to have quick release system for driving manual.

The system is working correctly, both the servos and motor stop and temperature control, only I change the servo direction for a titanium with 38 Kg / cm operating at 12V battery directly connected to the boat, as does not have enough force to turn the engine at high motion.

One way to make sure it works is simple, to accelerate the engine reacts and turns if you do.

It is a system for an unmanned fishing boat from a central console, can also be connected to a radio remote control as the small planes and have fun for a while.
  smiley-wink
/me
Logged

Pages: [1]   Go Up
Jump to: