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MV Agusta Brutale + MyECU?? (Read 20477 times)
MIK0
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Agusta Brutale 750S

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MV Agusta Brutale + MyECU??
01/20/12 at 10:27:23
 
Hello everyone, I am a new member - Miko from Croatia.
Considering that Italy is a neighboring country, it's no wonder that I have Italian motorcycle, it's Agusta Brutale 750s, MY 2005

I was searching the forum but can not find the information that someone is already installed "MyECU" in Agusta, even though her ​​heart is an ancient IAW 16M ECU.
Well, anyone?

Currently I have installed a full titanium exhaust "MV Corse" that comes with the appropriate EPROM. There are some small differences in the original and the MV Corse EPROM but I do not seem so different as expected, the exhaust is another story but not the EPROM.

Since I had some electrical problems common to model Brutale, (I replaced the so-called SPU module) I did the homework and study what and how the ECU actualy works. Now, that I no longer have the fear of the "gray box" I started thinking that there still can be improved by using the "MyECU".

All suggestions and comments are welcome.
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Re: MV Agusta Brutale + MyECU??
Reply #1 - 01/20/12 at 10:33:07
 
There is only one bike I know of that differs from the standard setup when using the 16M and that was a Laverda. Can't recall the exact model.
Where it differed is that the engine timing pickup was off the crank with a wheel that had 12 teeth with one missing.
The standard setup using a wheel off the cam and with 48 teeth ( 2 missing )
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Re: MV Agusta Brutale + MyECU??
Reply #2 - 05/23/12 at 20:04:30
 
Hi guys

The Mv uses a 24 missing 2 thooted wheel at crank speed. Also the cooling fans are controled by the ecu.

The bike is a inline 4 with cylinders working in pairs or wasted spark.

Can Myecu be made to work in this setup?

Stock ducati ecu work on mv's so everything should be very similar.

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« Last Edit: 05/23/12 at 20:06:18 by Rickf4 »  
 
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Re: MV Agusta Brutale + MyECU??
Reply #3 - 05/24/12 at 06:35:38
 
MyECU was designed to have this flexibility but of course it hasn't been tested. There is another crank driven bike in development at the moment although that is progressing slowly.

If you are technically capable then there is a good chance that together we can get MyECU working for that bike.
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Re: MV Agusta Brutale + MyECU??
Reply #4 - 05/24/12 at 19:55:04
 
I've been working with electronics for some time and have a scope to test stuff so i think we can make the ecu work.

My bike cuts spark at 13500rpm, a lot higher than guzzi's and ducs. Do you think my ecu will work well with this rev range?

I think the most dificult part will be setting the angle between the sensor and the top dead sensor mark on the timming wheel. How that is setup on normal 48 theet wheel?
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Re: MV Agusta Brutale + MyECU??
Reply #5 - 05/24/12 at 20:15:19
 
here's a pic of timming wheel setup.

...
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« Last Edit: 05/24/12 at 20:16:48 by Rickf4 »  
 
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Re: MV Agusta Brutale + MyECU??
Reply #6 - 05/25/12 at 07:29:13
 
When you have an oscilloscope things become a lot easier.
You should get a dual capture of the timing output and the coil voltage so that you can see where it needs to fire. This can be 600V spike so use a couple of resistors >10K to bring it down to a safe range. Say a divide by 10.

Do this for the two coil outputs.

You'll also need to set yourself up to do firmware upgrades. There was another thread just recently - http://cajinnovations.com/yabb0/YaBB.pl?num=1336367157
Looking at the picture it looks like the first pulse needs to be fired at the 7th pulse.
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« Last Edit: 05/25/12 at 07:32:31 by YaBB Administrator »  

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Re: MV Agusta Brutale + MyECU??
Reply #7 - 06/01/12 at 23:53:30
 
So to make shure I understand, you want me to insert one probe on the coil output and another on the timming wheel input to see the timming?

From I can see from a diagnostic software I have to read the WM16 ecu, the bike varies the ignition with temperature when cranking and setles to 10 to 12 degrees atdc, for some strange reason. Only mv know why they chose this ignition timming for idling. Not shure this wont change the meseurements.

From looking at the timming wheel that right, The piston 1 and 4 are on tdc when timming wheel is on the 7th pulse.

The piston 2 an 3 are on tdc on the timming wheel 19th pulse.


I think the rest is simple has the engine is even fire so we need a spark event every 180.

What do you think ?

Best Regards
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« Last Edit: 06/01/12 at 23:55:11 by Rickf4 »  
 
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Re: MV Agusta Brutale + MyECU??
Reply #8 - 06/10/12 at 14:50:11
 
Not the output of the coil, the output of the ECU to the coil

I think the first line of you map will need to be
MyECU Cfg TDC=0x0600, CylOffs=360, PulsesPer=24, MissingPulses=2
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MIK0
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Re: MV Agusta Brutale + MyECU??
Reply #9 - 06/10/12 at 18:36:42
 
I follow the debate with great interest ...
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Re: MV Agusta Brutale + MyECU??
Reply #10 - 06/16/12 at 05:25:43
 
YaBB Administrator wrote on 06/10/12 at 14:50:11:
Not the output of the coil, the output of the ECU to the coil

I think the first line of you map will need to be
MyECU Cfg TDC=0x0600, CylOffs=360, PulsesPer=24, MissingPulses=2


Yes the coil output on the ecu. Roll Eyes


I've been updating the map with the values I have from the stock ign and fuel tables.

One thing i've noticed is that my bike runs a lot less injector duration than the guzzi, probably because it's a 750 and it squirts twice so the actual injector duration is twice what's on the table, I think.

Hope to have more progress next week
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« Last Edit: 06/16/12 at 05:29:36 by Rickf4 »  
 
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Re: MV Agusta Brutale + MyECU??
Reply #11 - 10/09/12 at 05:22:45
 
Hi Guys

Cliff and I are getting there. Today the bike ran for more than a few seconds for the first time! Cheesy

Still a lot of stuff test but a lot closer to a working ECU.

Had to change the spark Mosfets to IGBT designed for driving coils, as the stock mosfets, die in seconds. I think this is caused by the coils driving two plugs, so it has a lot more voltage kickback. Also made a small mod to the driver stage as this parts are logic level.

These parts have a internal voltage clamp so they work great. Cool

http://www.fairchildsemi.com/ds/IS/ISL9V3040P3.pdf

cheers

Rick



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Re: MV Agusta Brutale + MyECU??
Reply #12 - 10/09/12 at 07:13:34
 
Well done Rick. I hope it wasn't too painful an exercise.

Those IGBT are 400V. The FETs I use are 600V. I think the main thing with these is the higher current rating. They are ~20A whereas the FETS are ~10A.
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Re: MV Agusta Brutale + MyECU??
Reply #13 - 10/10/12 at 04:45:02
 
I know it's not a thumping twin but here it goes. Cool

http://www.youtube.com/watch?v=Q6bjH1lAz8c

Already sounds better than stock with that stupid ignition setting at idle of 12 degrees after top dead center.

Now have to make it start without effort.

I have to say that the mods were really minor and the desing works very well. The only real mod was the spark circuit and thats because of the diferent coils.

I remember I used 13 amps fets and they died anyway, so I dont think it's over current because I reduced the dwell to 1500, but you have a lot more experience than me on the subject. Smiley

They are clamped to 400volts so they protected against the backemf of the coil. You can change the clamping voltage, by changing the base resistor.

I have the tables for the injector dead time and the coil dwell if anyone needs it.

Cheers

Rick
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« Last Edit: 10/10/12 at 04:45:57 by Rickf4 »  
 
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Re: MV Agusta Brutale + MyECU??
Reply #14 - 10/10/12 at 08:33:57
 
Thanks for sharing that. Sounds fast, even at idle
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