####   
     ##  
  #####  
 ##  ##  
  #####  
         

 ___   
(  _`\ 
| ( (_)
| |___ 
| (_, )
(____/'
       
       

 _______ 
(  ___  )
| (   ) |
| |   | |
| |   | |
| | /\| |
| (_\ \ |
(____\/_)
         

         
         
 ##  ##  
 ##  ##  
 ##  ##  
 ##  ##  
  #####  
         

         
         
 ##  ##  
  ####   
   ##    
  ####   
 ##  ##  
         

IMPORTANT: enter the case-INsensitive alphabetic (no numbers) code AND WRITE SOME SHORT summary of changes (below) if you are saving changes. (not required for previewing changes). Wiki-spamming is not tolerated, will be removed, so it does NOT even show up in history. Spammers go away now.


Visit Preferences to set your user name
Summary of change:
Back: \ MembersPage/JanSaenen '''Input variables where Inj_out is dependant of with vapourised injection''' Bosch 0 281 002 576 Free ADC inputs mcp3208: * EC18pin12 available ADC because secondary_trigger: HALL * EC18pin6 available ADC because onboard MAP * EC18pin16 * EC36pin13 used for secondary trigger Hall '''injection pulsewidth calculation''' ** I guess the fuel pulsewidth needs a *1/sqrt(fuel_pressure) multiplier (we'll likely use a table for sqrt() for speed. ** I have no idea how the fuel temperature will be used. Most likely another table_lookup for viscosity ? ( --- I don't think viscosity of a gas varies much with temperature. Density does , by universal gas laws ; multiply calculated fuel amount by T/Tref - both in degrees K - to correct for that.) When the plan is ready, we'll add to the firmware and make it possible to enable it in config. ---- '''software:''' NTC resistance look-up table: /NTC Fuel pressure analog signal from sensor is calculated with: Vout=(c1*Pabs+C0)*Us Look-up table for multiplier: /Fuel_Pressure *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 ** OnlineCourse/PulseWidthCalculation Nice data sheets for gasses: http://www.airliquide.com/en/business/products/gases/gasdata/index.asp?GasID=53 With this graph of pressure and temperature of Propane: http://www.airliquide.com/en/business/products/gases/gasdata/images/VaporPressureGraph/Propane_Vapor_Pressure.GIF Same graph for butane-n: http://www.airliquide.com/en/business/products/gases/gasdata/images/VaporPressureGraph/Butane_Vapor_Pressure.GIF
Optional: Add document to category:
Wiki formatting: * is Bullet list ** Bullet list subentry ... '''Bold''', ---- is horizontal ruler, <code> preformatted text... </code> See wiki editing HELP for tables and other formatting tips and tricks.