_____ 
 |_   _|
   | |  
   | |  
   |_|  
        

______ 
|  ___|
| |_   
|  _|  
| |    
\_|    
       
       

  ____  
 | __ ) 
 |  _ \ 
 | |_) |
 |____/ 
        

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

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

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:
'''Suzuki Valve control''' Test project for intake valve camshaft angle control. 1.3 / 1.6 Liter 4cyl engine used in Suzuki Swift, Ignis and other cars. Perhaps same trigger is used in other engines (Toyota ?) as well. Fero uploaded the documents [http://www.vems.hu/files/Fero/suzuki%20VVT/ here] '''Important information:''' * PWM signal for valve-adjust solenoid should be around 240 Hz ** higher duty advances the intake cam (as expected) * Fero did some testing with the intake-control-hydraulic system, and drift was almost zero at 45% duty. But it never stabilizes, so feedback is essential. * the camsync CMP signal is at the flywheel end of the cylinder head, HALL type with 3 pin connector ** Ground - measure in orig harness ** mid-pin sectrig HALL signal ** third pin (closest to sensor body): +5V HALL-supply voltage '''Trigger PATTERN''' '''Primary trigger''' is same 36-2-2-2 as InputTrigger/SubaruThirtySixMinusTwoMinusTwoMinusTwo (but HALL) * however, sectrig is different from the subaru 36-2-2-2-. A bit complex, and somewhat pain to implement in a generic firmware (not a specific just to this engine), but it's at least smarter then the subaru ** unlike the subaru, the suzuki cam seems to support proper running (timing from less than 140 crankdegrees) with camsync only (obviously without VVTI, of course: with intake cam fully retarded) ** HALL ---- '''test-setup at Budapest University of Technology (and "Economics")''' http://www.bme.hu/ the engine + shaft dyno located in the Jendrassik lab, 50m from the university's nuclear reactor. It is a sponsored ECU v3.3 serialnr 2012 * was installed around 2008, running with 1.1.27 ** guys installed a 18-1 crankwheel instead of using the factory (VR?) sensor. Camsync was not used * Marcell upgraded firmware (actually to 1.1.89) so that sectrig log can be captured ** vemstune was very helpful with the upgrade, offered the auto-saved 1.1.27 config and upgraded to 1.1.89. Validate warned about the values it could not upgrade (eg. tooth_width2 was unused in 1.1.27). Setting tooth width=20 degrees fixed the warning We'll test VVTI with this 18-1 primary trigger first. TODO: upload scope data and triggerlogs.
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.