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Propeller is a pretty cool chip. I've actually had a devboard sitting here for about a year, and haven't gotten around to doing anything with it.
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MAP to MAF conversion.
Search for my post with the mathematical curve fit, for a 99 motor. MAF voltage is a fucntion of MAP and RPM. |
Originally Posted by Joe Perez
(Post 786908)
Propeller is a pretty cool chip. I've actually had a devboard sitting here for about a year, and haven't gotten around to doing anything with it.
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Originally Posted by ctxspy
(Post 643954)
http://lmgtfy.com/?q=what+does+a+cas+do+on+a+miata
having read your other posts (all on this thread) I can only imagine you're a non-miata guy and you joined this forum because of this thread. That said, please spend 5 minutes before posting questions to do basic research. But I do have an Arduino, three of them in fact (a Mega and two Uno) and am a hardware guy. I was reading this thread and got interested. |
Originally Posted by blade8r
(Post 745440)
the rpm enrichment is probably a mechanical design. the wind that is passes through the afm will kick back the plate initially further then the air that is passing through was suppose to be at. it's all inertia i would assume. because it levels out real quick
i'm mean we are talking about a small albeit minor flac that the afm also a question for whoever had made this graph... did you swap into a full range tps? also can you get us a read out of what it looks like to be 3 k rpm 5th gear cruising down the freeway. i think that's the most important thing about our cars. |
woot sorry for the late response myself. i decided to give up on the arduino as an ecu subject. it seems the capability of the unit itself is limited. i also don't have the knowledge to write the code for it. i guess i was just brain storming to see if it's possible. i actually was more interested in it as afm eliminator.
but however i still have no experience in coding. |
Is this thread still alive?
I happened to stumble across this forum and post way too late in dev, I have a 91 miata I am trying to use an arduino to control or replace my ecu all together, I have roughly read all of the posts but got lost alittle here and there... so did bloodline loose all interest in using the arduino altogether
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Originally Posted by 91luckymiata
(Post 991971)
I happened to stumble across this forum and post way too late in dev, I have a 91 miata I am trying to use an arduino to control or replace my ecu all together, I have roughly read all of the posts but got lost alittle here and there... so did bloodline loose all interest in using the arduino altogether
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Reading a good bit of this thread before I realized it was ancient got me thinking. Trying to use an arduino as a full ecu seems like a bit of a stretch and we're already got good affordable solutions for that already. If there was an arduino variant with 4 high current pwm drivers and 4 vr/hall inputs it would be interesting to try to make a motorsports abs/traction control system with it. Race logic traction control's price isnt too outrageous, but a motorsports abs system is around $10k.
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As Jason said, check out DIYEFI - there's something with a lot of groundwork laid, a few running cars, and all very, very open source.
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Originally Posted by downix
(Post 816196)
Egads, you just made me feel bad a year later for just joining these forums because of this thread. (building myself a Locost 7 using many Miata parts off of a wrecked non-turbo, a way to save a great car which served me well for many years)
But I do have an Arduino, three of them in fact (a Mega and two Uno) and am a hardware guy. I was reading this thread and got interested. |
Welcome
I'm new here, I read the whole topic and do not understand the arduino inputs and outputs: (maybe someone could write about? |
Latest 8bit Arduino code here:
https://sourceforge.net/projects/mia...ataBrain_v3.1/ Will post up 32bit ARM code at some point. |
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Hi Guys would just like to know how many crank angle sensor pulses to cam sensor like 4 crank pulses to 1 cam pulse? i am having trouble getting my prototype board running right leds arnt flashing right and d13 is flashing thanks my version of code is the lastest 3.1 thanks
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NA and NB motors have different cam pulse patterns.
NA are like the old Mitsu motors that have 4 crank pulses per crank revolution. Search this forum for my posts on the VVT setup. The NB non-VVT and VVT have the same cam pattern, just that the latter moves around. |
arduino crank and cam simulator
thanks mate just programing another arduino as the crank angle sensor to trigger the arduino efi
thanks will have a look QUOTE=JasonC SBB;1139942]NA and NB motors have different cam pulse patterns. NA are like the old Mitsu motors that have 4 crank pulses per crank revolution. Search this forum for my posts on the VVT setup. The NB non-VVT and VVT have the same cam pattern, just that the latter moves around.[/QUOTE] |
arduino crank simulator
Hi i have been playing around with a arduino simulating a crank and cam signals to drive this ecu and just cant seem to get the code right does anybody have a arduino code that cold help me out thanks
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Hi, does anybody know what formula you can use for calculating the time injection using Arduino as an ECU?
Many thanks in advance. |
y=mx+b
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