Developing an Engine Control System Part 1 of 3

[CICIORA STEVEN JOSEP]

  Well, Ed Lansinger beat me to it.  He wrote the article I wanted to 
(I'm not sure that I could have, anyway).  In the latest Circuit Cellar 
Ink, the first of a three part seriese on developing a 68hc16 based EFI 
system, used in a Formula SAE car.  He does a good job going over he 
calculated injector size, how he calculated the fuel map, etc.  He used a 
TIP120 transistor to drive a 12 ohm injector directly, with no diodes.  
Driven directly from a TTL bit.  
  I'm impressed with the article, and look foward to the rest of his 
series.  He is the first one I've seen that has actually built an EFI 
system and is willing to share it.
  Oh, ya.  It's for a 70 hp, 600cc high rpm motor-cycle engine.  He runs 
two banks of two spark plugs and injectors (simultaneous double fire, 
rather than sequential).

Circuit Cellar Ink: (800) 269-6301

Ed Lansinger: lansie at rpi.edu
"Ed Lansinger is a computer and systems engineer who worked on the 
Cadillac Northstar powertrain control software, cofounded an industrial 
software company, and does consulting.  He has returned to Rensselaer 
Polytechnic Institute for graduate studies and is forming a team there to 
build an electric race car."

-Steven Ciciora