nice features to have "request"

[lugnuts]

I would love to have the sdcard logging on always, and always owerwrite the oldest,
so it would start every time the car is started with date and time if possible, so if anything happens, i can always connect the laptop and show the latest log.

Is this something that could be possible?

/Skassa

I second this. I would like the option to use an RPM/MAP setting to activate the Logging.
For example, only log over 3,500 rpm on drag racing cars.

[mattias]

A realtime clock has been discussed, and is possible with the current hardware only it needs a battery as well.

Skassa: I think what you're looking for could just as easily be implemented in the computer software, to selectively download and filter the data.

[Denmark]

Mattias, do you mean in vemstune, or on the laptop?.

This was meant to be inside the vems, so that at any time can connect my laptop to any vems ecu and see a log of the last runs,

meaning that i do not want the laptop inside the car when running, but this would mostly be so i can see what happend before the costumers engine blew up , if that would ever happen



/Skassa

[mattias]

Sorry, I misunderstood.

Skassa: To have time and date, you need a realtime clock inside the ECU - which is why I meant this is possible with current hardware.

lugnuts: Filtering the data is best done with VemsTune and the interface could be made to automatically select the latest log, download and filter it to get only the data you want.
Of course, setting limits in the ECU is doable as well.

[rob@vems.co.uk]

Cylinder head temperature sensing for air-cooled applications: enrichment similar to CLT, but with retardation and reduced boost if the temp exceeds a threshold.

[MWfire]

Cylinder head temperature sensing for air-cooled applications: enrichment similar to CLT, but with retardation and reduced boost if the temp exceeds a threshold.

that can you done with any trim.

[Kenny Watson]

Can we log knock channel data with any of the recent firwares?

[GintsK]

Can we log knock channel data with any of the recent firwares?

It is very important!!! In MT era it was possible to log noise and signal. Even with not working knock control it was usable feature to verify what you hear (or not hear) in headphones.

Regading ECU itself now I see just two main features what should be reworked: injector lag time compensation and knock control system.

[Kenny Watson]

Can we log knock channel data with any of the recent firwares?

It is very important!!! In MT era it was possible to log noise and signal. Even with not working knock control it was usable feature to verify what you hear (or not hear) in headphones.

Regading ECU itself now I see just two main features what should be reworked: injector lag time compensation and knock control system.

Exactly! I'm not even tat worried about knock control/ignition retard algorithms, just being able to log the raw knock signal/knock diff would be very helpful.

This is a feature that VEMS is typically "marketed" as having, but in reality it does not, which is very unfortunate.

[mattias]

Don't worry, news and info regarding knock control will come very soon. Some nice changes are being merged with the main development branch.

[Denmark]

Don't worry, news and info regarding knock control will come very soon. Some nice changes are being merged with the main development branch.

Looking forward to that !

[GintsK]

Mattias, please comment little more!

[Kenny Watson]

Don't worry, news and info regarding knock control will come very soon. Some nice changes are being merged with the main development branch.

Awesome!

[Kenny Watson]

Don't worry, news and info regarding knock control will come very soon. Some nice changes are being merged with the main development branch.

I noticed in the notes for the currently being tested firmware 1.1.88 it says:

"compiled with KNOCK_ALTERNATIVE defined (so the knock amplitude threshold is configurable per loadsite)."

 

I guess this means knock functionality will make a return in the near future!?

Yay!

[z0tya]

Would be great!