EMS for electronic OM606 engines

Alastair E

05-04-2010, 01:56 PM #8

(05-04-2010, 10:28 AM)DervTuning It was not me, I think it was Greasy_Beast. It is a neat project, however, and it should be totally possible to do. The adapter plate would not be all that difficult to make, and there are a variety of Mercedes (application) electronic pumps you could scavenge the governor from (om605, etc).

In addition, this EMS should also be able to control the pump for an om605 as well.

I think I will keep that information for now, and if I do end up making the EMS available for sale, it will be very reasonable. The main goal for the project was simply to be able to use the engine as is, not to make a lot of $.

(05-01-2010, 07:04 PM)300SD81 Was it you that had plans to make an electronically controlled MW as well? I seem to remember someone posting about potentially making an adapter plate to mate the electronic M governor to a MW.

Also, would you mind disclosing what kind of CPU you are using so I can get an idea of what kind of clock speeds/capabilities it'd need? I've wanted to attempt something similar for a while now, but can't justify buying an electronic pump just to play around with...
Yes, the EMS does have full alda functionality, and you will be able to tune it whilst driving, making the process for finding the optimal fuel delivery curve fast and easy.

There is no transmission interface, as I will be using the Getrag 5MT from the 16 valve. Cruise control could be fairly simple to enable, with a defeat coming from the brake lamp signal, and/or switch. EGT protection is something I want to add as well, for the gauge I will use is a peak hold type with an alarm output. The EMS can take this as an input, limiting the fuel delivery to a safe level, seamlessly.

That is a good idea about the oil pressure, thanks! It should be able to interface the oil pressure sensor signal to limit the fuel to the idle setting or shut the engine off completely.

Does anyone know the pinout for the factory glow plug relay for the 99 E300TD? I just need to know about the 3 pin terminal on the relay. My guess is power, ground, and temperature or indicator lamp, but I am not sure 100%.

(05-01-2010, 08:09 PM)GREASY_BEAST How far have you gone with your system? Does it have ALDA functionality? Does it interface with the trans at all? Cruise control? EGT protection?

Also would love to know what hardware you used and software details. I can understand if you want to keep secrets for the purpose selling things though. I only ask because I have been mulling over an MW EMS for a short while.
It might also be good for the EMS to keep track of oil pressure. That way it can limit torque intelligently, as well as have an auto-shutdown if something goes bad.

I really applaud your efforts!

Knowing as I do the complexities of the way electronic systems work and what they must compensate for in a Diesel-injection system, its really summit to be proud of to be able to get it to run reasonably--Let alone Well on the bench!

It would be very worthwile doing a 'watch-dog' system summit like an 'official' engine-management...
--A system of micro-switches on the Accelerator position sensor pot arranged such that they change state when the pedal is pressed, so there is actually two signals sent to ECU, basically the microswitch acts as a guard...

Also, a system that monitors revs and accel. position such that if the speed of engine goes out of some pre-set range, when the accel pedal is not pressed the engine will be set to either No fuel position and operate some form of fuel cut off in case of system failure--If you see what I mean...

Bosch do this on their (Diesel) systems as a safety feature, Guess Toyota dont!! Big Grin

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