Data Logging With MJ
Turbo Mini Forums

I've been doing some considerations to final year projects, a project some lads got good some good grades on last year was a data collection project.

I'd like to install a full telemetry system on the mini to collect data and optimise the car etc. I was pondering whether this could work with megajolt to log the engine data. I know it outputs this data as it can be displayed on the laptop screen, but i dont have any information on how it outputs this and whether it is capturable.

Any information on this would be great thanks guys

Dan

I think megasquirt would be better, but still limited I/O potential.

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Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

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Interesting question.

AlexF

Ive been on the MegaJolt site, it doesnt seem to work properly... I cant seem to access any forums/information etc.. or am i being a school boy?

are you a regestered member on there?

when i was looking for the lastest version of squirt and spark code i couldn't see it because i wasn't a member as it was still "under development"

Dan, im guessing this is for a Uni final project?

If so would there be enough data to log from MJ as there aren't many variables to read compared to something like MS or similar?

Sounds like a good project but would think something like MS or similar would be more to work on?

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As you can view the RPM & MAP data on a laptop I would have thought it would be too hard to write some software to log it.

What would be fantastic would be if you could also log the AFR data from an AEM gauge as this is also streamed over RS232.

Sincing the two data streams (MJ & AEM) could provide an interesting challenge.

Innovate do some interesting bits of kit that log all kinds of variables.

http://www.innovatemotorsports.com/products/MTS.php

But, for your Uni project, don't you need to do something a bit different rather than just use a bit of kit?

Edited by Paul S on 19th Jul, 2007.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

i would guess its fairly easy, bit too wasy for a final year thing.

program your looking for is hyperterminal.

i've been on controls training all this week, considering i'm suppsoed to be a clanky i've enjoyed playing with the controls stuff!

Edited by iain on 19th Jul, 2007.

Datalogging is the easy bit (lots out there for megasquirt on laptops and PDAs) it is the interpetation of the data that is the clever part.

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Spot on Ben, its what you do with the data.

This isnt a technical project, what the kit is or who put it together isnt what im trying to achive. Complete telemetry of a car doing runs, from engine settings right down to travel in dampers as the car does its thing, then optimising is what this is based for.

My main final year engineering project has to be on the formula student car.

Edited by SumpNut on 19th Jul, 2007.

Hi,
VEMS would appear to have very good datalogging.
On the forum over there they diagnose mapping and other problems from the datalogs....
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Gavin :)

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If you want to do full telemetry then the race technology DL1 is the unit. As well as logging all the usuals it has a high speed GPS built in which allows you to be able to precisely work out what the car is doing and plot the datalog against track position.

The MS and innovate solution is great for logging all the engine parameters, and logworks is one of the best analysis packages, esp now it can read MS data in directly. But for logging vehicle dynamics (and the actions of the nut behind the wheel) it is not the right solution.

You could always log all the pressures and temps through the inlet and exhaust system to get a better understanding of the VE of an A Series.

You could determine intercooler efficiency, check compressor efficiency and with a dyno run, make an assessment of the VE.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Edited by Sprocket on 31st Jul, 2007.