sâmbătă, 16 mai 2009

8. First test with engine running .









Hello.
I made first test with the engine running. The overall results was just good , not very good.

Configurations:
- the carbs are in place => the test was made without injectors and throttle body.
- the ignition system it is the original one.
- the power supply and the controller are mounted and connected to 12v battery.
- the air filter it is home made

Good:
- the controller works well; I've made 200km, and not even one hang or restart!
- Sensor temperature (LM35) returns the correct values
- Pressure sensor works.
- Battery voltage is monitored properly.
- Injectors works. The test was made without pressurized fuel (so this is not quite good)
- The command to stepper motor it is working -> the stepper responds properly.
- The serial port connections works. I can update the software on the controller without removing it from the PCB.


Bad:
- the three buttons are affected of rain
- the air filter it is not very good. The air-fuel ratio are dependent of the air filter.
- the big problem that i have it is "bad readings of the engine rpm". Some times the readings are good ,
but suddenly from, for example, 2400rmp jump to 8000 rpm. I recheck and change the software and the problem
become to occur rarely.

marți, 12 mai 2009

7. installing circuits...

Picture from this post was removed due to a ugly bug from picasa!

marți, 5 mai 2009

6. Work in progress...