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'''Update''' $2006 Challenge: Were off and going. Running a 3.3 with Release 1.0.53 our msq file is *[http://www.vems.hu/files/GRMracer/alpha_n_full.msq msq file] *[http://www.vems.hu/files/GRMracer/full_alpha_nconfig.txt config.txt] *[http://www.vems.hu/files/GRMracer/full_alpha_ntables.txt tables.txt] *[http://www.vems.hu/files/GRMracer/basciallyrunning.xls log] [http://www.vems.hu/wiki/index.php?page=MembersPage%2FJanneMantyla Rushi's] old configs *[http://www.vems.hu/files/GRMracer/rushiCivic_aN_D15_VPower.msq msq file MT1.0.36] *[http://www.vems.hu/files/GRMracer/rushi_config.txt config.txt] *[http://www.vems.hu/files/GRMracer/rushi_tables.txt tables.txt] Question regarding PulseWidthCalculation for full AlphaN. The PulseWidth is calculated by the following equation <code> PW(ms) = ReqFuel(ms) * TPS/100 * VE/100 * gammae/100 </code> '''This makes ReqFuel *2.55 * 2.55 the maximum injector pulsewidth''' (without enrichments) A little matlab snippet to figure out how the VE table entries correlated with time. My value for the bin was 22-23 <code> function output = VEtable(dummy) %values taken from my log file req_fuel = 12.5 rpm = 4621 rps = rpm./60 effrps = rps./2 effperiodms = 1./effrps.*1e3 gamma = .98 pw = 2.8 VEelementraw = pw./ ((req_fuel).*(gamma)) output = VEelementraw.*100 return </code> If the VEtable is configured (at WOT) well with what a dyno HP plot would look like, the VE table relates the of TPS% to air flow. For example if 1% throttle is 10% flow the VE table would reflect that. I'll be posting some matlab code soon that takes RPM,HP, displacement, airtemp, and outputs various VE tables: * linear throttle * exponential throttle * the above are far from realistic, the airflow(TPS,RPM) depends on RPM and opening (~cross sectional area), ** opening(TPS)=sin(TPS * const2) but oval linkage changes this somewhat (but 0 for TPS=0 and 1.0 for TPS=255 most of the time so you can calculate const2) ** at low RPM we know that pressure drop across the throttle (which is appr 1.0 - airfill) is roughly proportional to RPM*airfill * (1.01/opening - 1.0); *** that is 1.0 - airfill(RPM, TPS) = airfill(RPM, TPS) * const3 * RPM * (1.01 /opening - 1.0) so sg. like airfill(RPM,TPS) = 1/(1+(const3 * RPM * (1.01 /opening(TPS) - 1.0))) TODO: review,check, propose reasonable const values *** At 1200 RPM 2..6% TPS is enough for 90% airfill (that is usually called VE; I intentionally don't use VE term here, so noone thinks this directly goes into the j[] table) ** at high RPM close to linear with the opening(TPS); appr 90% opening needed for 90% airfill with some modifications we can also do the same for AirDensityControl maps as MAP is supposed to determine % throttle open with some non-linear effects already included. Notes: *with config13 = 0x06, Baro indicator in MegaTune goes up and down with TPS. The config has full AlphaN * For FULL AlphaN you need to manually edit config13 in the config file (typically value 02, needs to be changed to 06, it masks bit-2 true changes the binary from 0000 0010 to 0000 0110 ) it eliminates the loadmultiplication from the fueling math becoming: PulseWidth = ReqFuel * tps (0..1) * VE (0..1) $2005 Challenge Car not going this year. A multituide of last minute problems has conspired to prevent the two planned cars from attending. * Odd problem #1 unless the serial port loaded or grounded the Fuel Pump wont run. -- Do NOT use EMI serial ports.. * Odd problem #2 Bad ignition switch caused intermittent starting Not really bad ignition switch, bad grounding of ignition module * Odd problem #3 Unknown coolant system after winter freeze -- ejected freeze plug -- yep this one did us in.. * misc other stuff. Anyway plans are already underway for next year. And the cars/engines are partially built. ------ Physical Setups * '''Plans Turbo car ''' ** '''VEMS v3.1''' **2.0L ABA with a 20V AUG head ( variable valve timing) *** Stock KO3 from VW 1.8T *** Stock 1.8T fuel injectors 241cc/min and ~10-11ohms **60-2 crank trigger (VR) - aba **hall sensor on cam for #1 TDC ( very optional ) ** wasted spark setup with ABA coil ** or Coil on Plug from 1.8T ** LSU4 WBO2 sensor ** Nitrous activation ** Water injection -- maybe * '''Plans for NA car ''' ** '''VEMS v3.2''' ** 2.0L PL block with Port & polish 16v Head ** GSXR 750 ITBs ** Nitrous -- triggered this time ** move from v2.2 to v3.1 with proper PWM ** LSU4 WBO2 sensor ** Stock Distributor and Hall sender ** Bosch 008 module for coil. ** Drive ingition THRU distributor ---- VEMS needs/checklist '''STICKERS ! ''' '''STICKERS !!''' '''Hardware''' * StepByStepGuide ''done'' ** Basic Assembly Instructions for putting in a Alubos case *** ''Power'' *** ''Serial Port / Communications'' *** LCD Hookup *** ''Injector Drivers: Flyback and FETs (Low Z injectors)'' - VERIFY *** ''Ignition Drivers: FETs for driving ABA coil pack - Wasted spark '' - VERIFY **** May possibly need setup for GM packs Lost module in garage *** Ignition Drivers: Drving Bosch 008 Module (NA car) *** ''WBO2: Heater/Driver setup'' **** Will this work with wasted spark setup? *** Trigger setups **** ''VR trigger 60-2 wheel VW ABA block (Red VR+) (Black VR-)'' R30 Removed, D14 to be installed.. **** ''[http://www.vems.hu/wiki/index.php?page=StepByStepGuide%2FNotes HALL] trigger'' 4 window *****Hall sensor connected to primary trigger *****Solder wire between JP2 (top row middle of the trigger jumper section) and JP7 (top row to the right) *****''Use D14 '' *****''Bridge SJ2 (Leftmost in the LM1815 grouping) '' *****''Leave SJ6 open (found below LM1815 on component side) '' *****The Hall GND lead is connected near Pin26 on the EC36 connector. *****The Hall signal lead is to be connected to Pin 27. *****The Hall supply is connected to pin 28. *****''Install 270ohm resistor at R142. (solder side between pin 28 and 29 on EC36) '' *****''Install 220n capacitor at C69 (solder side between pin 28 and 29 on EC36) '' *** *Knock setup for using stock VW sensor for a 2.0L [http://scirocco.org/engine/ PL] block *Knock setup for using stock VW sensor for a 2.0L [http://scirocco.org/engine/ ABA] block *WBO2 setup using VW LSU4 for 3.1 *WBO2 setup using VW LSU4 for 3.2 '''Software/ configuration''' Assuming that all my needs are already implemented in firmware setups Please correct if not done.. Current firmware version you want me to run '''Turbo VEMS v3.1''' * Autolearning * 60-2 Trigger (VR) * Nitrous Activation * VVT output (solenoid activation) RPM and load maybe (very optional) * Knock for 2.0L [http://scirocco.org/engine/ ABA] block * LSU4 setup (V3.2) * Basic instructions on changing and viewing values for table entries * CLT for Bosch temp sensor MembersPage/GrmRacer/BoschCltSensor * map stuff? * Air Temp sensor GM '''Naturally Asprirated car -- VEMS v3.2 ''' * Autolearning * 4 window trigger (Hall) -- no other choice * Nitrous Activation -- RPM based * Knock for 2.0L [http://scirocco.org/engine/ PL] block * LSU4 setup (v3.1) * Basic instructions on changing and viewing values for table entries * CLT setup for Bosch temp sensor * map stuff? * Air Temp sensor GM * I'll try for a wasted spark setup from a VW or GM ---- For $2004 challenge So we placed 29th overall in the $2004 challenge our 1/4mi time was 14.6 after 1/2 hour of tuning on a turbo Yugo MEgasquirt fuel map, a bad coolant sensor, and no nitrous.. oh well. Yes that PVC works. http://www.vems.hu/files/GRMenginebay.jpg Lots of pics and snippets.. http://BustedKnuckleRacing.com GRM = Grassroots motorsports (www.grmotorsports.com) '''Documentation and History''' : This is to document any changes or addons that are made to MS-AVR (GenBoard or AfreshBoard) during the building of the 1988 scirocco http://www.scirocco.org : Starting point ''BasicInstallation'' ------ : The plans 2.0L ABA 16v Turbo Triggered via the hall sender built into the block :nitrous injection :water injection :ignition control :traction control ----- Whats happening this year no time for turbo. 2.0L 9A 1.8L 16v head P&P nitrous direct port injection water injection via cold start in ''custom'' intake manifold MS-AVR for ignition and fuel <insert stuff for car setup> MembersPage/GrmRacer/GrmCircuits EGT's on the cheap using raw thermocouple and Dupont LTCC tape. Stuff Im going to document :MembersPage/GrmRacer/HowToSwapIntoCIS :MembersPage/GrmRacer/GrmIgnition :MembersPage/GrmRacer/GrmWiring This one is hard to read, but pretty complete :MembersPage/GrmRacer/GrmCircuits This one is easier to read and follow, but not complete yet :MembersPage/GrmRacer/Grm2005RaceQuestions -- Need help here. :InputTrigger/MultitoothTriggerWheel -- Page describing how to implement this :NitrousController -- Page describing adding nitrous to control stuff :TractionControl -- Used specifically to cut off fuel and air to reduce HP output to stop the tires from spinning :GearSelect -- Circuit to show what gear you are in for an early A1 VW transmission with the big reverse gear connector and the upshift light :IgnitionVW -- information on adapting the stock VW ignition circuit to the MS-AVR system with minimal changes to the system. It should be a fully mappable ignition, by replacing the Typical Hall sender output from the Hall sender on the distributor to the Ignition controller. Ideas abound for a cheap and easy replacement. WaterInjectionController - This page will describe adding water injection to the racecar.. Please dont try this at home you can seriously damage your car. MembersPage/GrmRacer/GrmInjectorSetup -- what I have to do to get the car running.. Disclaimer: I'm trying all this stuff at once. None, some, or all of it may work to some degree or other. This '''STUFF''' is developed for off-road use, and the car only has to last about 5 drag runs and 2 autocrosses. So think about that before you do any of this. to the stock ignition box from the distributor or The 2.5 bar MAP sensor that you asked: MPX4250AP (MembersPage/MarcellGal) http://www.x-dsl.hu/genboard/ --------------------- ArmProcessorSubsitution Im working on the lpc2119 library for the possible ARM processor use. Take a look at the library and see if I got it right. http://www.vems.hu/files/grmracer/LPC2119_arm.lbr a possible source for connectors http://www.fciconnect.com/markets/m_auto.asp ----- [http://cyco.ataxxia.com/gallery/GenboardV3 Genboard pics] ----- Notes for assembly * L2014 LCD must have Contrast to boot * PS2 pinout in manual is wrong and needs fixed * LCD Manufacturer found! ------ GrmRacer/TestHarnessSetup
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