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Re: DTASwin rewrite

Posted: Thu Oct 20, 2016 4:50 am
by gnutz2
This is a big one for me but I'm not quite sure if it comes under software or firmware?

On turbocharged engines the fuel pressure needs to take into account manifold pressure by deducting manifold pressure and adding manifold vacuum.

If this was done turbocharged engines could adopt a failsafe strategy in the event of a fuel pressure drop and potentially save thousands of pounds.

Cheers Baz.

Re: DTASwin rewrite

Posted: Thu Oct 20, 2016 5:59 am
by stevieturbo
gnutz2 wrote:This is a big one for me but I'm not quite sure if it comes under software or firmware?

On turbocharged engines the fuel pressure needs to take into account manifold pressure by deducting manifold pressure and adding manifold vacuum.

If this was done turbocharged engines could adopt a failsafe strategy in the event of a fuel pressure drop and potentially save thousands of pounds.

Cheers Baz.
Syvecs already does this. ( and I might have mentioned it as a failsafe already here too )

Some other ecu's offer a table of MAP vs Pressure....but it's messy compared to the simple field of relative fuel pressure. Such a simple and effective safety to have.

Re: DTASwin rewrite

Posted: Thu Oct 20, 2016 6:56 am
by Alex DTA
Software = PC software

Firmware = ECU, the code that actually controls the engine. So that is a firmware change.

Easy enough to implement, as we have both MAP and FP, so I'll add it to the enhancements list.

Re: DTASwin rewrite

Posted: Thu Oct 20, 2016 9:23 am
by stevieturbo
Just a simple field that if it drops below relative FP of xxx kpa/psi etc for a period of xx seconds then force reduced power ( whether that's boost, rpm, whatever )

Then up to the user to fine tune it to their setup.

Re: DTASwin rewrite

Posted: Fri Oct 21, 2016 6:42 am
by lumley32
as an addition to that, a fuel pressure trip would be nice, something to detect sudden drops in fuel pressure (like a pipe bursting) and should shut the fuel pump off.

this saved me at Snetterton a few weeks ago!

Re: DTASwin rewrite

Posted: Fri Oct 21, 2016 10:46 am
by Alex DTA
All noted. How about a pretty video?

[youtube][/youtube]

Re: DTASwin rewrite

Posted: Fri Oct 21, 2016 4:09 pm
by stevieturbo
lumley32 wrote:as an addition to that, a fuel pressure trip would be nice, something to detect sudden drops in fuel pressure (like a pipe bursting) and should shut the fuel pump off.

this saved me at Snetterton a few weeks ago!
What has been mentioned above covers that too....although obviously any pipe burst would need to be sufficient to actually cause a pressure drop.

Many fractures or splits may not actually do that. Best to install good lines :)

Re: DTASwin rewrite

Posted: Fri Oct 21, 2016 4:10 pm
by stevieturbo
I think the most popular ask for the real time display was always could it be user configurable ?

Re: DTASwin rewrite

Posted: Sat Oct 22, 2016 3:29 am
by Alex DTA
stevieturbo wrote:I think the most popular ask for the real time display was always could it be user configurable ?
It will be, but not in the first release. First step is just to get all the current functionality working, then add the nice to have bits like that.

Re: DTASwin rewrite

Posted: Sat Oct 22, 2016 12:47 pm
by lumley32
of corse it won't catch everything Stevie, it was just something that was fresh in my mind!

and they were good lines, just badly re-routed after a change of filter! this stuff would of corse be easy on a massive car with loads of room to put stuff! :P

Alex, that display looks much better than the old one, if only from an aesthetic point of view.