MembersPage/JanSaenen/Vapourised (2006-02-22 02:34:35)

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Input variables where Inj_out is dependant of...

As my car will be running on Vapourised LPG injection my Inj_output timing will be dependant of Fuelpressure and Fueltemperature. I already have a sensor mounted that's able to collect these values.

Connect the signal to free ADC inputs - mcp3208. Check the shop text for free inputs. Apparently

When the plan is ready, we'll add to the firmware and make it possible to enable it in config.


LPG needs some extra analog inputs to work

I want to run fully sequential injection and ignition with and Hall sensor as secondary trigger.

It seems no need to alter the hardware of my genboard to use it with Vapourised Sequential LPG Injection.

Fully sequential is configured in config (the EC36pin13 is only used for cam-HALL, not normally reused for other tasks anyway).

software:

From what I understand you need 4 look-up tables:

  • Fuel_temp : Vsens_out
  • Fuel_pressure : Vsens_out
  • Fuel_temp : Density
  • Fuel_pressure : Density

What is Vsens_out for ?

For the Fuel_pressure Vsens_out can be calculated: as Vout=(c1*Pabs+C0)*Us. This need no table, if the required variables are available.

Vout = signal output voltage in V

Vs = supply voltage in V

Pabs = absolute pressure in kPa

C0 = -5/350

C1 = 0.8/350 kPa ^-1