DIY Electronic Fuel Injection

What does the pneumatics do? Sounds like it does the actual shifting with a up/down button control to servo valves and an air tank? I thought an electronic quickshifter was just delaying the motor slightly so that you can manually do a clutchless shift.
 
The pneumatics actually does the shifting for you as well as cutting the ignition during the gear change. Single button push with no need to actuate the shift lever with your foot.
 
Add a couple of more magnets to "increase the RPM reading....4 magnets will be like 7200 RPM....6 will get you to 9800, close to the max .....make sure your counter can handle it.
 
Unfortunately, my algorithm is setup to count for time between pulses rather than number of pulses in an elapsed time. The multiple magnets approach would need to be very accurately placed to produce a steady signal with equal distance between each magnet.

I'm toying with the idea of putting 30V on the fan and seeing what happens. ;D
 
I'm toying with the idea of putting 30V on the fan and seeing what happens. [/size]


It will run real fast for about .25 seconds.


A dremel or die grinder will get you more RPM for testing in a safer way...


Rally digging this thread. My knowledge base is *just* enough for me to understand your approach but be completely unable to duplicate it.


Thanks for sharing with us non EE types!
 
There's no need to check higher rpm. If the algorithm works at 1000 rpm, it will work at 10000 rpm. Your only consideration is overflow. Matt, you already know how to protect for that. No need to explain. Also, if the output of the Hall Effect sensor is able to keep up at the higher frequency, it will be fine. Frequency should be no problem as 10000 rpm is only 166 hz. Piece of cake....
 
eyhonda said:
There's no need to check higher rpm. If the algorithm works at 1000 rpm, it will work at 10000 rpm. Your only consideration is overflow. Matt, you already know how to protect for that. No need to explain. Also, if the output of the Hall Effect sensor is able to keep up at the higher frequency, it will be fine. Frequency should be no problem as 10000 rpm is only 166 hz. Piece of cake....
Click to expand...

I hate "ifs" especially IF i can check and make it a definitely...
 
The Hall sensor I'm using is an Allegro A1120LUA-T and it's good to 800kHz (96 million RPM when measured from the camshaft). I think we'll be OK.
 
Sonreir said:
The Hall sensor I'm using is an Allegro A1120LUA-T and it's good to 800kHz (96 million RPM when measured from the camshaft). I think we'll be OK.
Click to expand...

i wouldn't exceed 3 million RPM if I were you ;D
 
This stuff is really cool, but kinda hurts my head. Haha! But I should be able to figure it out
 
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