4.5 dmax ECM???

[DURAtotheMAX]

Here is what looks to be a picture of the 4.5 dmax ECM. I grabbed it from a youtube video. Ross/Paul any idea what kind of ECM it is??? Doesnt really look like an edc-16 like the LBZ/LMM ECM...something different? :(

http://www.youtube.com/watch?v=7J4wF...eature=related

ben

[GMPX]

No idea what that ECM is, we saw that at SEMA 07, it was big and nasty with the words Bosch on it

[DURAtotheMAX]

I wonder why they are going bosch with the diesel ECM's?? You would think if it was some sort of licensing or package deal thing with bosch (the rest of the dmax fuel injection system being bosch), they would have started with the first dmax and made the LB7 bosch-based too. Delphi ECM development doesnt seem to be losing steam in GM's gas vehicles, so whats the deal with diesels?

Some new ECM that bosch is working on? As I understand the EDC-16 is a pretty ubiquitous ECM platform among diesels all over the world, is it really running out of "headroom" as far as capability and processing power? I wonder if theres something that the 4.5 dmax needs taht the EDC-16/LBZ/LMM style ECM doesnt support???

if it is indeed some new bosch piece, would the innards of it at least be similar enough to the current bosch ECM's so that it would not be like starting over from scratch if you guys were to support the 4.5 dmax in the future?? (as opposed to if GM went to siemens or denso, or something TOTALLY different)

ben

[GMPX]

Well, it's all speculation at this stage what it might be.
Of interest, Delphi make a new generation Diesel ECM that is used in Europe that is based on the Siemens Tri-Core CPU's. The Denso Diesel ECM as used on the 7.8L is based on the SH-2 CPU (same CPU the Sega Saturn used!). Then of course Bosch use the PowerPC CPU, so really they are all on par with each other. It would have to come down to cost.

From what I've seen Denso are ahead in the Diesel technology stakes, I hope GM never switch to them.

Comparing the code structure of the Delphi gas ECM's like the E38 v's the spider web programming Bosch use it would be really nice to see a Delphi Diesel ECM based on the PowerPC.

Cheers,
Ross

[DURAtotheMAX]

thanks Ross, interesting info.

Hopefully they will stay somewhat standardized with the 4.5 and new 2010 dmax. With the new piezo injectors and higher rail pressure the two engines will probably be even easier to get lots of power out of. Also, with the cylinder pressure monitoring that the ECM's are going to do, there must be some cylinde pressure limter/multiplier tables that can adjust fueling. Wow would those tables be fun to mess with; tune it for max power, but then tune the cyl pressure maps to automatically pull fuel back if cylinder pressure exceeds (whatever level is dangerous to stock rods and stuff) X psi, much like the ECT or IAT limiter tables do now...

I cant wait to see it all...

hopefully you guys will be able to conquer the new dmax's, whichever direction they go, I dont see that being a big problem though.

ben

[GMPX]

hopefully you guys will be able to conquer the new dmax's, whichever direction they go, I dont see that being a big problem though.

ben

Hard to know, Bosch know how to lock down ECM's REALLY well if needed (see BMW Diesel stuff), it could be really bad or typical GM.

Cheers,
Ross

[MN C5]

Hard to know, Bosch know how to lock down ECM's REALLY well if needed (see BMW Diesel stuff), it could be really bad or typical GM.

Cheers,
Ross

At that point wouldn't you guys be better off offering a alternative CPU that would provide factory (like) functionality for Off Road Use?

[GMPX]

At that point wouldn't you guys be better off offering a alternative CPU that would provide factory (like) functionality for Off Road Use?

"You guys" as in EFILive offering an aftermarket ECM? Ah, that will never happen.

[MadMaxx61]

That is why we have people like Volker Schwarz (MDE MCSCHWARZ DIESEL ENGINEERING LLC)that do make stand alone ECM's for high performance applications.

[GMPX]

The problem with replacement ECM's is the factory ECM is so tightly integrated with every other module in the vehicle, unless it supports all the CAN messaging etc then it's just not going to work 100% as a drop in replacement.

Cheers,
Ross